drivers/misc/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 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 <acpi/acpi_drivers.h>
  62 #include <acpi/acpi_bus.h>
  63 #include <asm/uaccess.h>
  64 #include <linux/sonypi.h>
  65 #include <linux/sony-laptop.h>
  66 #ifdef CONFIG_SONYPI_COMPAT
  67 #include <linux/poll.h>
  68 #include <linux/miscdevice.h>
  69 #endif
  70
  71 #define DRV_PFX                 "sony-laptop: "
  72 #define dprintk(msg...)         do {                    \
  73         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  74 } while (0)
  75
  76 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  77
  78 #define SONY_NC_CLASS           "sony-nc"
  79 #define SONY_NC_HID             "SNY5001"
  80 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  81
  82 #define SONY_PIC_CLASS          "sony-pic"
  83 #define SONY_PIC_HID            "SNY6001"
  84 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  85
  86 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  87 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  88 MODULE_LICENSE("GPL");
  89 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  90
  91 static int debug;
  92 module_param(debug, int, 0);
  93 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  94                  "the development of this driver");
  95
  96 static int no_spic;             /* = 0 */
  97 module_param(no_spic, int, 0444);
  98 MODULE_PARM_DESC(no_spic,
  99                  "set this if you don't want to enable the SPIC device");
 100
 101 static int compat;              /* = 0 */
 102 module_param(compat, int, 0444);
 103 MODULE_PARM_DESC(compat,
 104                  "set this if you want to enable backward compatibility mode");
 105
 106 static unsigned long mask = 0xffffffff;
 107 module_param(mask, ulong, 0644);
 108 MODULE_PARM_DESC(mask,
 109                  "set this to the mask of event you want to enable (see doc)");
 110
 111 static int camera;              /* = 0 */
 112 module_param(camera, int, 0444);
 113 MODULE_PARM_DESC(camera,
 114                  "set this to 1 to enable Motion Eye camera controls "
 115                  "(only use it if you have a C1VE or C1VN model)");
 116
 117 #ifdef CONFIG_SONYPI_COMPAT
 118 static int minor = -1;
 119 module_param(minor, int, 0);
 120 MODULE_PARM_DESC(minor,
 121                  "minor number of the misc device for the SPIC compatibility code, "
 122                  "default is -1 (automatic)");
 123 #endif
 124
 125 /*********** Input Devices ***********/
 126
 127 #define SONY_LAPTOP_BUF_SIZE    128
 128 struct sony_laptop_input_s {
 129         atomic_t                users;
 130         struct input_dev        *jog_dev;
 131         struct input_dev        *key_dev;
 132         struct kfifo            *fifo;
 133         spinlock_t              fifo_lock;
 134         struct workqueue_struct *wq;
 135 };
 136 static struct sony_laptop_input_s sony_laptop_input = {
 137         .users = ATOMIC_INIT(0),
 138 };
 139
 140 struct sony_laptop_keypress {
 141         struct input_dev *dev;
 142         int key;
 143 };
 144
 145 /* Correspondance table between sonypi events
 146  * and input layer indexes in the keymap
 147  */
 148 static int sony_laptop_input_index[] = {
 149         -1,     /*  0 no event */
 150         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 151         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 152         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 153         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 154         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 155         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 156          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 157          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 158          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 159          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 160          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 161          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 162          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 163          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 164          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 165          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 166         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 167         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 168         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 169         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 170         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 171         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 172         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 173         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 174         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 175         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 176         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 177         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 178         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 179         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 180         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 181         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 182         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 183         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 184         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 185         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 186         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 187         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 188         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 189         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 190         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 191         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 192         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 193         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 194         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 195         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 196         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 197         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 198         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 199         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 200         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 201         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 202         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 203         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 204         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 205         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 206         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 207         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 208         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 209         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 210         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 211         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 212         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 213 };
 214
 215 static int sony_laptop_input_keycode_map[] = {
 216         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 217         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 218         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 219         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 220         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 221         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 222         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 223         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 224         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 225         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 226         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 227         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 228         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 229         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 230         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 231         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 232         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 233         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 234         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 235         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 236         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 237         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 238         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 239         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 240         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 241         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 242         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 243         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 244         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 245         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 246         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 247         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 248         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 249         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 250         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 251         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 252         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 253         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 254         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 255         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 256         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 257         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 258         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 259         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 260         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 261         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 262         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 263         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 264         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 265         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 266         KEY_ZOOMOUT     /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 267 };
 268
 269 /* release buttons after a short delay if pressed */
 270 static void do_sony_laptop_release_key(struct work_struct *work)
 271 {
 272         struct sony_laptop_keypress kp;
 273
 274         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 275                          sizeof(kp)) == sizeof(kp)) {
 276                 msleep(10);
 277                 input_report_key(kp.dev, kp.key, 0);
 278                 input_sync(kp.dev);
 279         }
 280 }
 281 static DECLARE_WORK(sony_laptop_release_key_work,
 282                 do_sony_laptop_release_key);
 283
 284 /* forward event to the input subsystem */
 285 static void sony_laptop_report_input_event(u8 event)
 286 {
 287         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 288         struct input_dev *key_dev = sony_laptop_input.key_dev;
 289         struct sony_laptop_keypress kp = { NULL };
 290
 291         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 292                 /* Nothing, not all VAIOs generate this event */
 293                 return;
 294         }
 295
 296         /* report events */
 297         switch (event) {
 298         /* jog_dev events */
 299         case SONYPI_EVENT_JOGDIAL_UP:
 300         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 301                 input_report_rel(jog_dev, REL_WHEEL, 1);
 302                 input_sync(jog_dev);
 303                 return;
 304
 305         case SONYPI_EVENT_JOGDIAL_DOWN:
 306         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 307                 input_report_rel(jog_dev, REL_WHEEL, -1);
 308                 input_sync(jog_dev);
 309                 return;
 310
 311         /* key_dev events */
 312         case SONYPI_EVENT_JOGDIAL_PRESSED:
 313                 kp.key = BTN_MIDDLE;
 314                 kp.dev = jog_dev;
 315                 break;
 316
 317         default:
 318                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 319                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 320                         break;
 321                 }
 322                 if (sony_laptop_input_index[event] != -1) {
 323                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 324                         if (kp.key != KEY_UNKNOWN)
 325                                 kp.dev = key_dev;
 326                 }
 327                 break;
 328         }
 329
 330         if (kp.dev) {
 331                 input_report_key(kp.dev, kp.key, 1);
 332                 /* we emit the scancode so we can always remap the key */
 333                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 334                 input_sync(kp.dev);
 335                 kfifo_put(sony_laptop_input.fifo,
 336                           (unsigned char *)&kp, sizeof(kp));
 337
 338                 if (!work_pending(&sony_laptop_release_key_work))
 339                         queue_work(sony_laptop_input.wq,
 340                                         &sony_laptop_release_key_work);
 341         } else
 342                 dprintk("unknown input event %.2x\n", event);
 343 }
 344
 345 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 346 {
 347         struct input_dev *jog_dev;
 348         struct input_dev *key_dev;
 349         int i;
 350         int error;
 351
 352         /* don't run again if already initialized */
 353         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 354                 return 0;
 355
 356         /* kfifo */
 357         spin_lock_init(&sony_laptop_input.fifo_lock);
 358         sony_laptop_input.fifo =
 359                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 360                             &sony_laptop_input.fifo_lock);
 361         if (IS_ERR(sony_laptop_input.fifo)) {
 362                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 363                 error = PTR_ERR(sony_laptop_input.fifo);
 364                 goto err_dec_users;
 365         }
 366
 367         /* init workqueue */
 368         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 369         if (!sony_laptop_input.wq) {
 370                 printk(KERN_ERR DRV_PFX
 371                                 "Unabe to create workqueue.\n");
 372                 error = -ENXIO;
 373                 goto err_free_kfifo;
 374         }
 375
 376         /* input keys */
 377         key_dev = input_allocate_device();
 378         if (!key_dev) {
 379                 error = -ENOMEM;
 380                 goto err_destroy_wq;
 381         }
 382
 383         key_dev->name = "Sony Vaio Keys";
 384         key_dev->id.bustype = BUS_ISA;
 385         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 386         key_dev->dev.parent = &acpi_device->dev;
 387
 388         /* Initialize the Input Drivers: special keys */
 389         set_bit(EV_KEY, key_dev->evbit);
 390         set_bit(EV_MSC, key_dev->evbit);
 391         set_bit(MSC_SCAN, key_dev->mscbit);
 392         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 393         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 394         key_dev->keycode = &sony_laptop_input_keycode_map;
 395         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 396                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 397                         set_bit(sony_laptop_input_keycode_map[i],
 398                                 key_dev->keybit);
 399                 }
 400         }
 401
 402         error = input_register_device(key_dev);
 403         if (error)
 404                 goto err_free_keydev;
 405
 406         sony_laptop_input.key_dev = key_dev;
 407
 408         /* jogdial */
 409         jog_dev = input_allocate_device();
 410         if (!jog_dev) {
 411                 error = -ENOMEM;
 412                 goto err_unregister_keydev;
 413         }
 414
 415         jog_dev->name = "Sony Vaio Jogdial";
 416         jog_dev->id.bustype = BUS_ISA;
 417         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 418         key_dev->dev.parent = &acpi_device->dev;
 419
 420         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 421         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 422         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
 423
 424         error = input_register_device(jog_dev);
 425         if (error)
 426                 goto err_free_jogdev;
 427
 428         sony_laptop_input.jog_dev = jog_dev;
 429
 430         return 0;
 431
 432 err_free_jogdev:
 433         input_free_device(jog_dev);
 434
 435 err_unregister_keydev:
 436         input_unregister_device(key_dev);
 437         /* to avoid kref underflow below at input_free_device */
 438         key_dev = NULL;
 439
 440 err_free_keydev:
 441         input_free_device(key_dev);
 442
 443 err_destroy_wq:
 444         destroy_workqueue(sony_laptop_input.wq);
 445
 446 err_free_kfifo:
 447         kfifo_free(sony_laptop_input.fifo);
 448
 449 err_dec_users:
 450         atomic_dec(&sony_laptop_input.users);
 451         return error;
 452 }
 453
 454 static void sony_laptop_remove_input(void)
 455 {
 456         /* cleanup only after the last user has gone */
 457         if (!atomic_dec_and_test(&sony_laptop_input.users))
 458                 return;
 459
 460         /* flush workqueue first */
 461         flush_workqueue(sony_laptop_input.wq);
 462
 463         /* destroy input devs */
 464         input_unregister_device(sony_laptop_input.key_dev);
 465         sony_laptop_input.key_dev = NULL;
 466
 467         if (sony_laptop_input.jog_dev) {
 468                 input_unregister_device(sony_laptop_input.jog_dev);
 469                 sony_laptop_input.jog_dev = NULL;
 470         }
 471
 472         destroy_workqueue(sony_laptop_input.wq);
 473         kfifo_free(sony_laptop_input.fifo);
 474 }
 475
 476 /*********** Platform Device ***********/
 477
 478 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 479 static struct platform_driver sony_pf_driver = {
 480         .driver = {
 481                    .name = "sony-laptop",
 482                    .owner = THIS_MODULE,
 483                    }
 484 };
 485 static struct platform_device *sony_pf_device;
 486
 487 static int sony_pf_add(void)
 488 {
 489         int ret = 0;
 490
 491         /* don't run again if already initialized */
 492         if (atomic_add_return(1, &sony_pf_users) > 1)
 493                 return 0;
 494
 495         ret = platform_driver_register(&sony_pf_driver);
 496         if (ret)
 497                 goto out;
 498
 499         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 500         if (!sony_pf_device) {
 501                 ret = -ENOMEM;
 502                 goto out_platform_registered;
 503         }
 504
 505         ret = platform_device_add(sony_pf_device);
 506         if (ret)
 507                 goto out_platform_alloced;
 508
 509         return 0;
 510
 511       out_platform_alloced:
 512         platform_device_put(sony_pf_device);
 513         sony_pf_device = NULL;
 514       out_platform_registered:
 515         platform_driver_unregister(&sony_pf_driver);
 516       out:
 517         atomic_dec(&sony_pf_users);
 518         return ret;
 519 }
 520
 521 static void sony_pf_remove(void)
 522 {
 523         /* deregister only after the last user has gone */
 524         if (!atomic_dec_and_test(&sony_pf_users))
 525                 return;
 526
 527         platform_device_del(sony_pf_device);
 528         platform_device_put(sony_pf_device);
 529         platform_driver_unregister(&sony_pf_driver);
 530 }
 531
 532 /*********** SNC (SNY5001) Device ***********/
 533
 534 /* the device uses 1-based values, while the backlight subsystem uses
 535    0-based values */
 536 #define SONY_MAX_BRIGHTNESS     8
 537
 538 #define SNC_VALIDATE_IN         0
 539 #define SNC_VALIDATE_OUT        1
 540
 541 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 542                               char *);
 543 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 544                                const char *, size_t);
 545 static int boolean_validate(const int, const int);
 546 static int brightness_default_validate(const int, const int);
 547
 548 struct sony_nc_value {
 549         char *name;             /* name of the entry */
 550         char **acpiget;         /* names of the ACPI get function */
 551         char **acpiset;         /* names of the ACPI set function */
 552         int (*validate)(const int, const int);  /* input/output validation */
 553         int value;              /* current setting */
 554         int valid;              /* Has ever been set */
 555         int debug;              /* active only in debug mode ? */
 556         struct device_attribute devattr;        /* sysfs atribute */
 557 };
 558
 559 #define SNC_HANDLE_NAMES(_name, _values...) \
 560         static char *snc_##_name[] = { _values, NULL }
 561
 562 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 563         { \
 564                 .name           = __stringify(_name), \
 565                 .acpiget        = _getters, \
 566                 .acpiset        = _setters, \
 567                 .validate       = _validate, \
 568                 .debug          = _debug, \
 569                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 570         }
 571
 572 #define SNC_HANDLE_NULL { .name = NULL }
 573
 574 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 575
 576 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 577 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 578
 579 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 580 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 581
 582 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 583 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 584
 585 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 586 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 587
 588 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 589
 590 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 591 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 592
 593 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 594 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 595
 596 SNC_HANDLE_NAMES(PID_get, "GPID");
 597
 598 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 599 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 600
 601 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 602 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 603
 604 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 605 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 606
 607 static struct sony_nc_value sony_nc_values[] = {
 608         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 609                         snc_brightness_def_set, brightness_default_validate, 0),
 610         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 611         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 612         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 613                         boolean_validate, 0),
 614         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 615                         boolean_validate, 1),
 616         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 617                         boolean_validate, 0),
 618         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 619                         boolean_validate, 0),
 620         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 621                         boolean_validate, 0),
 622         /* unknown methods */
 623         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 624         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 625         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 626         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 627         SNC_HANDLE_NULL
 628 };
 629
 630 static acpi_handle sony_nc_acpi_handle;
 631 static struct acpi_device *sony_nc_acpi_device = NULL;
 632
 633 /*
 634  * acpi_evaluate_object wrappers
 635  */
 636 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 637 {
 638         struct acpi_buffer output;
 639         union acpi_object out_obj;
 640         acpi_status status;
 641
 642         output.length = sizeof(out_obj);
 643         output.pointer = &out_obj;
 644
 645         status = acpi_evaluate_object(handle, name, NULL, &output);
 646         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 647                 *result = out_obj.integer.value;
 648                 return 0;
 649         }
 650
 651         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 652
 653         return -1;
 654 }
 655
 656 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 657                             int *result)
 658 {
 659         struct acpi_object_list params;
 660         union acpi_object in_obj;
 661         struct acpi_buffer output;
 662         union acpi_object out_obj;
 663         acpi_status status;
 664
 665         params.count = 1;
 666         params.pointer = &in_obj;
 667         in_obj.type = ACPI_TYPE_INTEGER;
 668         in_obj.integer.value = value;
 669
 670         output.length = sizeof(out_obj);
 671         output.pointer = &out_obj;
 672
 673         status = acpi_evaluate_object(handle, name, &params, &output);
 674         if (status == AE_OK) {
 675                 if (result != NULL) {
 676                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 677                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 678                                        "return type\n");
 679                                 return -1;
 680                         }
 681                         *result = out_obj.integer.value;
 682                 }
 683                 return 0;
 684         }
 685
 686         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 687
 688         return -1;
 689 }
 690
 691 /*
 692  * sony_nc_values input/output validate functions
 693  */
 694
 695 /* brightness_default_validate:
 696  *
 697  * manipulate input output values to keep consistency with the
 698  * backlight framework for which brightness values are 0-based.
 699  */
 700 static int brightness_default_validate(const int direction, const int value)
 701 {
 702         switch (direction) {
 703                 case SNC_VALIDATE_OUT:
 704                         return value - 1;
 705                 case SNC_VALIDATE_IN:
 706                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 707                                 return value + 1;
 708         }
 709         return -EINVAL;
 710 }
 711
 712 /* boolean_validate:
 713  *
 714  * on input validate boolean values 0/1, on output just pass the
 715  * received value.
 716  */
 717 static int boolean_validate(const int direction, const int value)
 718 {
 719         if (direction == SNC_VALIDATE_IN) {
 720                 if (value != 0 && value != 1)
 721                         return -EINVAL;
 722         }
 723         return value;
 724 }
 725
 726 /*
 727  * Sysfs show/store common to all sony_nc_values
 728  */
 729 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 730                               char *buffer)
 731 {
 732         int value;
 733         struct sony_nc_value *item =
 734             container_of(attr, struct sony_nc_value, devattr);
 735
 736         if (!*item->acpiget)
 737                 return -EIO;
 738
 739         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 740                 return -EIO;
 741
 742         if (item->validate)
 743                 value = item->validate(SNC_VALIDATE_OUT, value);
 744
 745         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 746 }
 747
 748 static ssize_t sony_nc_sysfs_store(struct device *dev,
 749                                struct device_attribute *attr,
 750                                const char *buffer, size_t count)
 751 {
 752         int value;
 753         struct sony_nc_value *item =
 754             container_of(attr, struct sony_nc_value, devattr);
 755
 756         if (!item->acpiset)
 757                 return -EIO;
 758
 759         if (count > 31)
 760                 return -EINVAL;
 761
 762         value = simple_strtoul(buffer, NULL, 10);
 763
 764         if (item->validate)
 765                 value = item->validate(SNC_VALIDATE_IN, value);
 766
 767         if (value < 0)
 768                 return value;
 769
 770         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 771                 return -EIO;
 772         item->value = value;
 773         item->valid = 1;
 774         return count;
 775 }
 776
 777
 778 /*
 779  * Backlight device
 780  */
 781 static int sony_backlight_update_status(struct backlight_device *bd)
 782 {
 783         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 784                                 bd->props.brightness + 1, NULL);
 785 }
 786
 787 static int sony_backlight_get_brightness(struct backlight_device *bd)
 788 {
 789         int value;
 790
 791         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 792                 return 0;
 793         /* brightness levels are 1-based, while backlight ones are 0-based */
 794         return value - 1;
 795 }
 796
 797 static struct backlight_device *sony_backlight_device;
 798 static struct backlight_ops sony_backlight_ops = {
 799         .update_status = sony_backlight_update_status,
 800         .get_brightness = sony_backlight_get_brightness,
 801 };
 802
 803 /*
 804  * New SNC-only Vaios event mapping to driver known keys
 805  */
 806 struct sony_nc_event {
 807         u8      data;
 808         u8      event;
 809 };
 810
 811 static struct sony_nc_event *sony_nc_events;
 812
 813 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 814  * for Fn keys
 815  */
 816 static int sony_nc_C_enable(const struct dmi_system_id *id)
 817 {
 818         int result = 0;
 819
 820         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
 821
 822         sony_nc_events = id->driver_data;
 823
 824         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
 825                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
 826                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
 827                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
 828                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
 829                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
 830                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
 831                                 "functionalities may be missing\n");
 832                 return 1;
 833         }
 834         return 0;
 835 }
 836
 837 static struct sony_nc_event sony_C_events[] = {
 838         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 839         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 840         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 841         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 842         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 843         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 844         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 845         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 846         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 847         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 848         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 849         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 850         { 0, 0 },
 851 };
 852
 853 /* SNC-only model map */
 854 static const struct dmi_system_id sony_nc_ids[] = {
 855                 {
 856                         .ident = "Sony Vaio FE Series",
 857                         .callback = sony_nc_C_enable,
 858                         .driver_data = sony_C_events,
 859                         .matches = {
 860                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 861                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
 862                         },
 863                 },
 864                 {
 865                         .ident = "Sony Vaio FZ Series",
 866                         .callback = sony_nc_C_enable,
 867                         .driver_data = sony_C_events,
 868                         .matches = {
 869                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 870                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
 871                         },
 872                 },
 873                 {
 874                         .ident = "Sony Vaio C Series",
 875                         .callback = sony_nc_C_enable,
 876                         .driver_data = sony_C_events,
 877                         .matches = {
 878                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 879                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 880                         },
 881                 },
 882                 {
 883                         .ident = "Sony Vaio N Series",
 884                         .callback = sony_nc_C_enable,
 885                         .driver_data = sony_C_events,
 886                         .matches = {
 887                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 888                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
 889                         },
 890                 },
 891                 { }
 892 };
 893
 894 /*
 895  * ACPI callbacks
 896  */
 897 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 898 {
 899         struct sony_nc_event *evmap;
 900         u32 ev = event;
 901         int result;
 902
 903         if (ev == 0x92) {
 904                 /* read the key pressed from EC.GECR
 905                  * A call to SN07 with 0x0202 will do it as well respecting
 906                  * the current protocol on different OSes
 907                  *
 908                  * Note: the path for GECR may be
 909                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 910                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 911                  *
 912                  * TODO: we may want to do the same for the older GHKE -need
 913                  *       dmi list- so this snippet may become one more callback.
 914                  */
 915                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
 916                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 917                 else
 918                         ev = result & 0xFF;
 919         }
 920
 921         if (sony_nc_events)
 922                 for (evmap = sony_nc_events; evmap->event; evmap++) {
 923                         if (evmap->data == ev) {
 924                                 ev = evmap->event;
 925                                 break;
 926                         }
 927                 }
 928
 929         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 930         sony_laptop_report_input_event(ev);
 931         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 932 }
 933
 934 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 935                                       void *context, void **return_value)
 936 {
 937         struct acpi_namespace_node *node;
 938         union acpi_operand_object *operand;
 939
 940         node = (struct acpi_namespace_node *)handle;
 941         operand = (union acpi_operand_object *)node->object;
 942
 943         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 944                (u32) operand->method.param_count);
 945
 946         return AE_OK;
 947 }
 948
 949 /*
 950  * ACPI device
 951  */
 952 static int sony_nc_resume(struct acpi_device *device)
 953 {
 954         struct sony_nc_value *item;
 955
 956         for (item = sony_nc_values; item->name; item++) {
 957                 int ret;
 958
 959                 if (!item->valid)
 960                         continue;
 961                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 962                                        item->value, NULL);
 963                 if (ret < 0) {
 964                         printk("%s: %d\n", __FUNCTION__, ret);
 965                         break;
 966                 }
 967         }
 968
 969         /* set the last requested brightness level */
 970         if (sony_backlight_device &&
 971                         !sony_backlight_update_status(sony_backlight_device))
 972                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
 973
 974         /* re-initialize models with specific requirements */
 975         dmi_check_system(sony_nc_ids);
 976
 977         return 0;
 978 }
 979
 980 static int sony_nc_add(struct acpi_device *device)
 981 {
 982         acpi_status status;
 983         int result = 0;
 984         acpi_handle handle;
 985         struct sony_nc_value *item;
 986
 987         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 988                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 989
 990         sony_nc_acpi_device = device;
 991         strcpy(acpi_device_class(device), "sony/hotkey");
 992
 993         sony_nc_acpi_handle = device->handle;
 994
 995         /* read device status */
 996         result = acpi_bus_get_status(device);
 997         /* bail IFF the above call was successful and the device is not present */
 998         if (!result && !device->status.present) {
 999                 dprintk("Device not present\n");
1000                 result = -ENODEV;
1001                 goto outwalk;
1002         }
1003
1004         if (debug) {
1005                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1006                                              1, sony_walk_callback, NULL, NULL);
1007                 if (ACPI_FAILURE(status)) {
1008                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1009                         result = -ENODEV;
1010                         goto outwalk;
1011                 }
1012         }
1013
1014         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1015          * should be respected as we already checked for the device presence above */
1016         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1017                 dprintk("Invoking _INI\n");
1018                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1019                                                 NULL, NULL)))
1020                         dprintk("_INI Method failed\n");
1021         }
1022
1023         /* setup input devices and helper fifo */
1024         result = sony_laptop_setup_input(device);
1025         if (result) {
1026                 printk(KERN_ERR DRV_PFX
1027                                 "Unabe to create input devices.\n");
1028                 goto outwalk;
1029         }
1030
1031         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1032                                              ACPI_DEVICE_NOTIFY,
1033                                              sony_acpi_notify, NULL);
1034         if (ACPI_FAILURE(status)) {
1035                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1036                 result = -ENODEV;
1037                 goto outinput;
1038         }
1039
1040         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1041                 sony_backlight_device = backlight_device_register("sony", NULL,
1042                                                                   NULL,
1043                                                                   &sony_backlight_ops);
1044
1045                 if (IS_ERR(sony_backlight_device)) {
1046                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1047                         sony_backlight_device = NULL;
1048                 } else {
1049                         sony_backlight_device->props.brightness =
1050                             sony_backlight_get_brightness
1051                             (sony_backlight_device);
1052                         sony_backlight_device->props.max_brightness =
1053                             SONY_MAX_BRIGHTNESS - 1;
1054                 }
1055
1056         }
1057
1058         /* initialize models with specific requirements */
1059         dmi_check_system(sony_nc_ids);
1060
1061         result = sony_pf_add();
1062         if (result)
1063                 goto outbacklight;
1064
1065         /* create sony_pf sysfs attributes related to the SNC device */
1066         for (item = sony_nc_values; item->name; ++item) {
1067
1068                 if (!debug && item->debug)
1069                         continue;
1070
1071                 /* find the available acpiget as described in the DSDT */
1072                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1073                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1074                                                          *item->acpiget,
1075                                                          &handle))) {
1076                                 dprintk("Found %s getter: %s\n",
1077                                                 item->name, *item->acpiget);
1078                                 item->devattr.attr.mode |= S_IRUGO;
1079                                 break;
1080                         }
1081                 }
1082
1083                 /* find the available acpiset as described in the DSDT */
1084                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1085                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1086                                                          *item->acpiset,
1087                                                          &handle))) {
1088                                 dprintk("Found %s setter: %s\n",
1089                                                 item->name, *item->acpiset);
1090                                 item->devattr.attr.mode |= S_IWUSR;
1091                                 break;
1092                         }
1093                 }
1094
1095                 if (item->devattr.attr.mode != 0) {
1096                         result =
1097                             device_create_file(&sony_pf_device->dev,
1098                                                &item->devattr);
1099                         if (result)
1100                                 goto out_sysfs;
1101                 }
1102         }
1103
1104         return 0;
1105
1106       out_sysfs:
1107         for (item = sony_nc_values; item->name; ++item) {
1108                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1109         }
1110         sony_pf_remove();
1111
1112       outbacklight:
1113         if (sony_backlight_device)
1114                 backlight_device_unregister(sony_backlight_device);
1115
1116         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1117                                             ACPI_DEVICE_NOTIFY,
1118                                             sony_acpi_notify);
1119         if (ACPI_FAILURE(status))
1120                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1121
1122       outinput:
1123         sony_laptop_remove_input();
1124
1125       outwalk:
1126         return result;
1127 }
1128
1129 static int sony_nc_remove(struct acpi_device *device, int type)
1130 {
1131         acpi_status status;
1132         struct sony_nc_value *item;
1133
1134         if (sony_backlight_device)
1135                 backlight_device_unregister(sony_backlight_device);
1136
1137         sony_nc_acpi_device = NULL;
1138
1139         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1140                                             ACPI_DEVICE_NOTIFY,
1141                                             sony_acpi_notify);
1142         if (ACPI_FAILURE(status))
1143                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1144
1145         for (item = sony_nc_values; item->name; ++item) {
1146                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1147         }
1148
1149         sony_pf_remove();
1150         sony_laptop_remove_input();
1151         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1152
1153         return 0;
1154 }
1155
1156 static const struct acpi_device_id sony_device_ids[] = {
1157         {SONY_NC_HID, 0},
1158         {SONY_PIC_HID, 0},
1159         {"", 0},
1160 };
1161 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1162
1163 static const struct acpi_device_id sony_nc_device_ids[] = {
1164         {SONY_NC_HID, 0},
1165         {"", 0},
1166 };
1167
1168 static struct acpi_driver sony_nc_driver = {
1169         .name = SONY_NC_DRIVER_NAME,
1170         .class = SONY_NC_CLASS,
1171         .ids = sony_nc_device_ids,
1172         .owner = THIS_MODULE,
1173         .ops = {
1174                 .add = sony_nc_add,
1175                 .remove = sony_nc_remove,
1176                 .resume = sony_nc_resume,
1177                 },
1178 };
1179
1180 /*********** SPIC (SNY6001) Device ***********/
1181
1182 #define SONYPI_DEVICE_TYPE1     0x00000001
1183 #define SONYPI_DEVICE_TYPE2     0x00000002
1184 #define SONYPI_DEVICE_TYPE3     0x00000004
1185 #define SONYPI_DEVICE_TYPE4     0x00000008
1186
1187 #define SONYPI_TYPE1_OFFSET     0x04
1188 #define SONYPI_TYPE2_OFFSET     0x12
1189 #define SONYPI_TYPE3_OFFSET     0x12
1190 #define SONYPI_TYPE4_OFFSET     0x12
1191
1192 struct sony_pic_ioport {
1193         struct acpi_resource_io io1;
1194         struct acpi_resource_io io2;
1195         struct list_head        list;
1196 };
1197
1198 struct sony_pic_irq {
1199         struct acpi_resource_irq        irq;
1200         struct list_head                list;
1201 };
1202
1203 struct sonypi_eventtypes {
1204         u8                      data;
1205         unsigned long           mask;
1206         struct sonypi_event     *events;
1207 };
1208
1209 struct device_ctrl {
1210         int                             model;
1211         int                             (*handle_irq)(const u8, const u8);
1212         u16                             evport_offset;
1213         u8                              has_camera;
1214         u8                              has_bluetooth;
1215         u8                              has_wwan;
1216         struct sonypi_eventtypes        *event_types;
1217 };
1218
1219 struct sony_pic_dev {
1220         struct device_ctrl      *control;
1221         struct acpi_device      *acpi_dev;
1222         struct sony_pic_irq     *cur_irq;
1223         struct sony_pic_ioport  *cur_ioport;
1224         struct list_head        interrupts;
1225         struct list_head        ioports;
1226         struct mutex            lock;
1227         u8                      camera_power;
1228         u8                      bluetooth_power;
1229         u8                      wwan_power;
1230 };
1231
1232 static struct sony_pic_dev spic_dev = {
1233         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1234         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1235 };
1236
1237 /* Event masks */
1238 #define SONYPI_JOGGER_MASK                      0x00000001
1239 #define SONYPI_CAPTURE_MASK                     0x00000002
1240 #define SONYPI_FNKEY_MASK                       0x00000004
1241 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1242 #define SONYPI_PKEY_MASK                        0x00000010
1243 #define SONYPI_BACK_MASK                        0x00000020
1244 #define SONYPI_HELP_MASK                        0x00000040
1245 #define SONYPI_LID_MASK                         0x00000080
1246 #define SONYPI_ZOOM_MASK                        0x00000100
1247 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1248 #define SONYPI_MEYE_MASK                        0x00000400
1249 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1250 #define SONYPI_BATTERY_MASK                     0x00001000
1251 #define SONYPI_WIRELESS_MASK                    0x00002000
1252
1253 struct sonypi_event {
1254         u8      data;
1255         u8      event;
1256 };
1257
1258 /* The set of possible button release events */
1259 static struct sonypi_event sonypi_releaseev[] = {
1260         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1261         { 0, 0 }
1262 };
1263
1264 /* The set of possible jogger events  */
1265 static struct sonypi_event sonypi_joggerev[] = {
1266         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1267         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1268         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1269         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1270         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1271         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1272         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1273         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1274         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1275         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1276         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1277         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1278         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1279         { 0, 0 }
1280 };
1281
1282 /* The set of possible capture button events */
1283 static struct sonypi_event sonypi_captureev[] = {
1284         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1285         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1286         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1287         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1288         { 0, 0 }
1289 };
1290
1291 /* The set of possible fnkeys events */
1292 static struct sonypi_event sonypi_fnkeyev[] = {
1293         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1294         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1295         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1296         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1297         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1298         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1299         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1300         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1301         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1302         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1303         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1304         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1305         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1306         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1307         { 0x21, SONYPI_EVENT_FNKEY_1 },
1308         { 0x22, SONYPI_EVENT_FNKEY_2 },
1309         { 0x31, SONYPI_EVENT_FNKEY_D },
1310         { 0x32, SONYPI_EVENT_FNKEY_E },
1311         { 0x33, SONYPI_EVENT_FNKEY_F },
1312         { 0x34, SONYPI_EVENT_FNKEY_S },
1313         { 0x35, SONYPI_EVENT_FNKEY_B },
1314         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1315         { 0, 0 }
1316 };
1317
1318 /* The set of possible program key events */
1319 static struct sonypi_event sonypi_pkeyev[] = {
1320         { 0x01, SONYPI_EVENT_PKEY_P1 },
1321         { 0x02, SONYPI_EVENT_PKEY_P2 },
1322         { 0x04, SONYPI_EVENT_PKEY_P3 },
1323         { 0, 0 }
1324 };
1325
1326 /* The set of possible bluetooth events */
1327 static struct sonypi_event sonypi_blueev[] = {
1328         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1329         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1330         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1331         { 0, 0 }
1332 };
1333
1334 /* The set of possible wireless events */
1335 static struct sonypi_event sonypi_wlessev[] = {
1336         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1337         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1338         { 0, 0 }
1339 };
1340
1341 /* The set of possible back button events */
1342 static struct sonypi_event sonypi_backev[] = {
1343         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1344         { 0, 0 }
1345 };
1346
1347 /* The set of possible help button events */
1348 static struct sonypi_event sonypi_helpev[] = {
1349         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1350         { 0, 0 }
1351 };
1352
1353
1354 /* The set of possible lid events */
1355 static struct sonypi_event sonypi_lidev[] = {
1356         { 0x51, SONYPI_EVENT_LID_CLOSED },
1357         { 0x50, SONYPI_EVENT_LID_OPENED },
1358         { 0, 0 }
1359 };
1360
1361 /* The set of possible zoom events */
1362 static struct sonypi_event sonypi_zoomev[] = {
1363         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1364         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1365         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1366         { 0, 0 }
1367 };
1368
1369 /* The set of possible thumbphrase events */
1370 static struct sonypi_event sonypi_thumbphraseev[] = {
1371         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1372         { 0, 0 }
1373 };
1374
1375 /* The set of possible motioneye camera events */
1376 static struct sonypi_event sonypi_meyeev[] = {
1377         { 0x00, SONYPI_EVENT_MEYE_FACE },
1378         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1379         { 0, 0 }
1380 };
1381
1382 /* The set of possible memorystick events */
1383 static struct sonypi_event sonypi_memorystickev[] = {
1384         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1385         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1386         { 0, 0 }
1387 };
1388
1389 /* The set of possible battery events */
1390 static struct sonypi_event sonypi_batteryev[] = {
1391         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1392         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1393         { 0, 0 }
1394 };
1395
1396 static struct sonypi_eventtypes type1_events[] = {
1397         { 0, 0xffffffff, sonypi_releaseev },
1398         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1399         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1400         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1401         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1402         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1403         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1404         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1405         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1406         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1407         { 0 },
1408 };
1409 static struct sonypi_eventtypes type2_events[] = {
1410         { 0, 0xffffffff, sonypi_releaseev },
1411         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1412         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1413         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1414         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1415         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1416         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1417         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1418         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1419         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1420         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1421         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1422         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1423         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1424         { 0 },
1425 };
1426 static struct sonypi_eventtypes type3_events[] = {
1427         { 0, 0xffffffff, sonypi_releaseev },
1428         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1429         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1430         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1431         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1432         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1433         { 0 },
1434 };
1435 static struct sonypi_eventtypes type4_events[] = {
1436         { 0, 0xffffffff, sonypi_releaseev },
1437         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1438         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1439         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1440         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1441         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1442         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1443         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1444         { 0 },
1445 };
1446
1447 /* low level spic calls */
1448 #define ITERATIONS_LONG         10000
1449 #define ITERATIONS_SHORT        10
1450 #define wait_on_command(command, iterations) {                          \
1451         unsigned int n = iterations;                                    \
1452         while (--n && (command))                                        \
1453                 udelay(1);                                              \
1454         if (!n)                                                         \
1455                 dprintk("command failed at %s : %s (line %d)\n",        \
1456                                 __FILE__, __FUNCTION__, __LINE__);      \
1457 }
1458
1459 static u8 sony_pic_call1(u8 dev)
1460 {
1461         u8 v1, v2;
1462
1463         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1464                         ITERATIONS_LONG);
1465         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1466         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1467         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1468         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1469         return v2;
1470 }
1471
1472 static u8 sony_pic_call2(u8 dev, u8 fn)
1473 {
1474         u8 v1;
1475
1476         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1477                         ITERATIONS_LONG);
1478         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1479         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1480                         ITERATIONS_LONG);
1481         outb(fn, spic_dev.cur_ioport->io1.minimum);
1482         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1483         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1484         return v1;
1485 }
1486
1487 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1488 {
1489         u8 v1;
1490
1491         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1492         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1493         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1494         outb(fn, spic_dev.cur_ioport->io1.minimum);
1495         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1496         outb(v, spic_dev.cur_ioport->io1.minimum);
1497         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1498         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1499                         dev, fn, v, v1);
1500         return v1;
1501 }
1502
1503 /*
1504  * minidrivers for SPIC models
1505  */
1506 static int type4_handle_irq(const u8 data_mask, const u8 ev)
1507 {
1508         /*
1509          * 0x31 could mean we have to take some extra action and wait for
1510          * the next irq for some Type4 models, it will generate a new
1511          * irq and we can read new data from the device:
1512          *  - 0x5c and 0x5f requires 0xA0
1513          *  - 0x61 requires 0xB3
1514          */
1515         if (data_mask == 0x31) {
1516                 if (ev == 0x5c || ev == 0x5f)
1517                         sony_pic_call1(0xA0);
1518                 else if (ev == 0x61)
1519                         sony_pic_call1(0xB3);
1520                 return 0;
1521         }
1522         return 1;
1523 }
1524
1525 static struct device_ctrl spic_types[] = {
1526         {
1527                 .model = SONYPI_DEVICE_TYPE1,
1528                 .handle_irq = NULL,
1529                 .evport_offset = SONYPI_TYPE1_OFFSET,
1530                 .event_types = type1_events,
1531         },
1532         {
1533                 .model = SONYPI_DEVICE_TYPE2,
1534                 .handle_irq = NULL,
1535                 .evport_offset = SONYPI_TYPE2_OFFSET,
1536                 .event_types = type2_events,
1537         },
1538         {
1539                 .model = SONYPI_DEVICE_TYPE3,
1540                 .handle_irq = NULL,
1541                 .evport_offset = SONYPI_TYPE3_OFFSET,
1542                 .event_types = type3_events,
1543         },
1544         {
1545                 .model = SONYPI_DEVICE_TYPE4,
1546                 .handle_irq = type4_handle_irq,
1547                 .evport_offset = SONYPI_TYPE4_OFFSET,
1548                 .event_types = type4_events,
1549         },
1550 };
1551
1552 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1553 {
1554         struct pci_dev *pcidev;
1555
1556         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1557                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1558         if (pcidev) {
1559                 dev->control = &spic_types[0];
1560                 goto out;
1561         }
1562
1563         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1564                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1565         if (pcidev) {
1566                 dev->control = &spic_types[2];
1567                 goto out;
1568         }
1569
1570         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1571                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1572         if (pcidev) {
1573                 dev->control = &spic_types[3];
1574                 goto out;
1575         }
1576
1577         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1578                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1579         if (pcidev) {
1580                 dev->control = &spic_types[3];
1581                 goto out;
1582         }
1583
1584         /* default */
1585         dev->control = &spic_types[1];
1586
1587 out:
1588         if (pcidev)
1589                 pci_dev_put(pcidev);
1590
1591         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1592                         dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
1593                         dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
1594                         dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
1595 }
1596
1597 /* camera tests and poweron/poweroff */
1598 #define SONYPI_CAMERA_PICTURE           5
1599 #define SONYPI_CAMERA_CONTROL           0x10
1600
1601 #define SONYPI_CAMERA_BRIGHTNESS                0
1602 #define SONYPI_CAMERA_CONTRAST                  1
1603 #define SONYPI_CAMERA_HUE                       2
1604 #define SONYPI_CAMERA_COLOR                     3
1605 #define SONYPI_CAMERA_SHARPNESS                 4
1606
1607 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1608 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1609 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1610 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1611
1612 /* the rest don't need a loop until not 0xff */
1613 #define SONYPI_CAMERA_AGC                       6
1614 #define SONYPI_CAMERA_AGC_MASK                  0x30
1615 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1616
1617 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1618 #define SONYPI_CAMERA_CONTROL                   0x10
1619
1620 #define SONYPI_CAMERA_STATUS                    7
1621 #define SONYPI_CAMERA_STATUS_READY              0x2
1622 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1623
1624 #define SONYPI_DIRECTION_BACKWARDS              0x4
1625
1626 #define SONYPI_CAMERA_REVISION                  8
1627 #define SONYPI_CAMERA_ROMVERSION                9
1628
1629 static int __sony_pic_camera_ready(void)
1630 {
1631         u8 v;
1632
1633         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1634         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1635 }
1636
1637 static int __sony_pic_camera_off(void)
1638 {
1639         if (!camera) {
1640                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1641                 return -ENODEV;
1642         }
1643
1644         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1645                                 SONYPI_CAMERA_MUTE_MASK),
1646                         ITERATIONS_SHORT);
1647
1648         if (spic_dev.camera_power) {
1649                 sony_pic_call2(0x91, 0);
1650                 spic_dev.camera_power = 0;
1651         }
1652         return 0;
1653 }
1654
1655 static int __sony_pic_camera_on(void)
1656 {
1657         int i, j, x;
1658
1659         if (!camera) {
1660                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1661                 return -ENODEV;
1662         }
1663
1664         if (spic_dev.camera_power)
1665                 return 0;
1666
1667         for (j = 5; j > 0; j--) {
1668
1669                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1670                         msleep(10);
1671                 sony_pic_call1(0x93);
1672
1673                 for (i = 400; i > 0; i--) {
1674                         if (__sony_pic_camera_ready())
1675                                 break;
1676                         msleep(10);
1677                 }
1678                 if (i)
1679                         break;
1680         }
1681
1682         if (j == 0) {
1683                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1684                 return -ENODEV;
1685         }
1686
1687         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1688                                 0x5a),
1689                         ITERATIONS_SHORT);
1690
1691         spic_dev.camera_power = 1;
1692         return 0;
1693 }
1694
1695 /* External camera command (exported to the motion eye v4l driver) */
1696 int sony_pic_camera_command(int command, u8 value)
1697 {
1698         if (!camera)
1699                 return -EIO;
1700
1701         mutex_lock(&spic_dev.lock);
1702
1703         switch (command) {
1704         case SONY_PIC_COMMAND_SETCAMERA:
1705                 if (value)
1706                         __sony_pic_camera_on();
1707                 else
1708                         __sony_pic_camera_off();
1709                 break;
1710         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1711                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1712                                 ITERATIONS_SHORT);
1713                 break;
1714         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1715                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1716                                 ITERATIONS_SHORT);
1717                 break;
1718         case SONY_PIC_COMMAND_SETCAMERAHUE:
1719                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1720                                 ITERATIONS_SHORT);
1721                 break;
1722         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1723                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1724                                 ITERATIONS_SHORT);
1725                 break;
1726         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1727                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1728                                 ITERATIONS_SHORT);
1729                 break;
1730         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1731                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1732                                 ITERATIONS_SHORT);
1733                 break;
1734         case SONY_PIC_COMMAND_SETCAMERAAGC:
1735                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1736                                 ITERATIONS_SHORT);
1737                 break;
1738         default:
1739                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1740                        command);
1741                 break;
1742         }
1743         mutex_unlock(&spic_dev.lock);
1744         return 0;
1745 }
1746 EXPORT_SYMBOL(sony_pic_camera_command);
1747
1748 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1749 static void sony_pic_set_wwanpower(u8 state)
1750 {
1751         state = !!state;
1752         mutex_lock(&spic_dev.lock);
1753         if (spic_dev.wwan_power == state) {
1754                 mutex_unlock(&spic_dev.lock);
1755                 return;
1756         }
1757         sony_pic_call2(0xB0, state);
1758         spic_dev.wwan_power = state;
1759         mutex_unlock(&spic_dev.lock);
1760 }
1761
1762 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1763                 struct device_attribute *attr,
1764                 const char *buffer, size_t count)
1765 {
1766         unsigned long value;
1767         if (count > 31)
1768                 return -EINVAL;
1769
1770         value = simple_strtoul(buffer, NULL, 10);
1771         sony_pic_set_wwanpower(value);
1772
1773         return count;
1774 }
1775
1776 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1777                 struct device_attribute *attr, char *buffer)
1778 {
1779         ssize_t count;
1780         mutex_lock(&spic_dev.lock);
1781         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1782         mutex_unlock(&spic_dev.lock);
1783         return count;
1784 }
1785
1786 /* bluetooth subsystem power state */
1787 static void __sony_pic_set_bluetoothpower(u8 state)
1788 {
1789         state = !!state;
1790         if (spic_dev.bluetooth_power == state)
1791                 return;
1792         sony_pic_call2(0x96, state);
1793         sony_pic_call1(0x82);
1794         spic_dev.bluetooth_power = state;
1795 }
1796
1797 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1798                 struct device_attribute *attr,
1799                 const char *buffer, size_t count)
1800 {
1801         unsigned long value;
1802         if (count > 31)
1803                 return -EINVAL;
1804
1805         value = simple_strtoul(buffer, NULL, 10);
1806         mutex_lock(&spic_dev.lock);
1807         __sony_pic_set_bluetoothpower(value);
1808         mutex_unlock(&spic_dev.lock);
1809
1810         return count;
1811 }
1812
1813 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1814                 struct device_attribute *attr, char *buffer)
1815 {
1816         ssize_t count = 0;
1817         mutex_lock(&spic_dev.lock);
1818         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1819         mutex_unlock(&spic_dev.lock);
1820         return count;
1821 }
1822
1823 /* fan speed */
1824 /* FAN0 information (reverse engineered from ACPI tables) */
1825 #define SONY_PIC_FAN0_STATUS    0x93
1826 static int sony_pic_set_fanspeed(unsigned long value)
1827 {
1828         return ec_write(SONY_PIC_FAN0_STATUS, value);
1829 }
1830
1831 static int sony_pic_get_fanspeed(u8 *value)
1832 {
1833         return ec_read(SONY_PIC_FAN0_STATUS, value);
1834 }
1835
1836 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1837                 struct device_attribute *attr,
1838                 const char *buffer, size_t count)
1839 {
1840         unsigned long value;
1841         if (count > 31)
1842                 return -EINVAL;
1843
1844         value = simple_strtoul(buffer, NULL, 10);
1845         if (sony_pic_set_fanspeed(value))
1846                 return -EIO;
1847
1848         return count;
1849 }
1850
1851 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1852                 struct device_attribute *attr, char *buffer)
1853 {
1854         u8 value = 0;
1855         if (sony_pic_get_fanspeed(&value))
1856                 return -EIO;
1857
1858         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1859 }
1860
1861 #define SPIC_ATTR(_name, _mode)                                 \
1862 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1863                 _mode, sony_pic_## _name ##_show,               \
1864                 sony_pic_## _name ##_store)
1865
1866 static SPIC_ATTR(bluetoothpower, 0644);
1867 static SPIC_ATTR(wwanpower, 0644);
1868 static SPIC_ATTR(fanspeed, 0644);
1869
1870 static struct attribute *spic_attributes[] = {
1871         &spic_attr_bluetoothpower.attr,
1872         &spic_attr_wwanpower.attr,
1873         &spic_attr_fanspeed.attr,
1874         NULL
1875 };
1876
1877 static struct attribute_group spic_attribute_group = {
1878         .attrs = spic_attributes
1879 };
1880
1881 /******** SONYPI compatibility **********/
1882 #ifdef CONFIG_SONYPI_COMPAT
1883
1884 /* battery / brightness / temperature  addresses */
1885 #define SONYPI_BAT_FLAGS        0x81
1886 #define SONYPI_LCD_LIGHT        0x96
1887 #define SONYPI_BAT1_PCTRM       0xa0
1888 #define SONYPI_BAT1_LEFT        0xa2
1889 #define SONYPI_BAT1_MAXRT       0xa4
1890 #define SONYPI_BAT2_PCTRM       0xa8
1891 #define SONYPI_BAT2_LEFT        0xaa
1892 #define SONYPI_BAT2_MAXRT       0xac
1893 #define SONYPI_BAT1_MAXTK       0xb0
1894 #define SONYPI_BAT1_FULL        0xb2
1895 #define SONYPI_BAT2_MAXTK       0xb8
1896 #define SONYPI_BAT2_FULL        0xba
1897 #define SONYPI_TEMP_STATUS      0xC1
1898
1899 struct sonypi_compat_s {
1900         struct fasync_struct    *fifo_async;
1901         struct kfifo            *fifo;
1902         spinlock_t              fifo_lock;
1903         wait_queue_head_t       fifo_proc_list;
1904         atomic_t                open_count;
1905 };
1906 static struct sonypi_compat_s sonypi_compat = {
1907         .open_count = ATOMIC_INIT(0),
1908 };
1909
1910 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1911 {
1912         int retval;
1913
1914         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1915         if (retval < 0)
1916                 return retval;
1917         return 0;
1918 }
1919
1920 static int sonypi_misc_release(struct inode *inode, struct file *file)
1921 {
1922         sonypi_misc_fasync(-1, file, 0);
1923         atomic_dec(&sonypi_compat.open_count);
1924         return 0;
1925 }
1926
1927 static int sonypi_misc_open(struct inode *inode, struct file *file)
1928 {
1929         /* Flush input queue on first open */
1930         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1931                 kfifo_reset(sonypi_compat.fifo);
1932         return 0;
1933 }
1934
1935 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1936                                 size_t count, loff_t *pos)
1937 {
1938         ssize_t ret;
1939         unsigned char c;
1940
1941         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1942             (file->f_flags & O_NONBLOCK))
1943                 return -EAGAIN;
1944
1945         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1946                                        kfifo_len(sonypi_compat.fifo) != 0);
1947         if (ret)
1948                 return ret;
1949
1950         while (ret < count &&
1951                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1952                 if (put_user(c, buf++))
1953                         return -EFAULT;
1954                 ret++;
1955         }
1956
1957         if (ret > 0) {
1958                 struct inode *inode = file->f_path.dentry->d_inode;
1959                 inode->i_atime = current_fs_time(inode->i_sb);
1960         }
1961
1962         return ret;
1963 }
1964
1965 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1966 {
1967         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1968         if (kfifo_len(sonypi_compat.fifo))
1969                 return POLLIN | POLLRDNORM;
1970         return 0;
1971 }
1972
1973 static int ec_read16(u8 addr, u16 *value)
1974 {
1975         u8 val_lb, val_hb;
1976         if (ec_read(addr, &val_lb))
1977                 return -1;
1978         if (ec_read(addr + 1, &val_hb))
1979                 return -1;
1980         *value = val_lb | (val_hb << 8);
1981         return 0;
1982 }
1983
1984 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1985                              unsigned int cmd, unsigned long arg)
1986 {
1987         int ret = 0;
1988         void __user *argp = (void __user *)arg;
1989         u8 val8;
1990         u16 val16;
1991         int value;
1992
1993         mutex_lock(&spic_dev.lock);
1994         switch (cmd) {
1995         case SONYPI_IOCGBRT:
1996                 if (sony_backlight_device == NULL) {
1997                         ret = -EIO;
1998                         break;
1999                 }
2000                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2001                         ret = -EIO;
2002                         break;
2003                 }
2004                 val8 = ((value & 0xff) - 1) << 5;
2005                 if (copy_to_user(argp, &val8, sizeof(val8)))
2006                                 ret = -EFAULT;
2007                 break;
2008         case SONYPI_IOCSBRT:
2009                 if (sony_backlight_device == NULL) {
2010                         ret = -EIO;
2011                         break;
2012                 }
2013                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2014                         ret = -EFAULT;
2015                         break;
2016                 }
2017                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2018                                 (val8 >> 5) + 1, NULL)) {
2019                         ret = -EIO;
2020                         break;
2021                 }
2022                 /* sync the backlight device status */
2023                 sony_backlight_device->props.brightness =
2024                     sony_backlight_get_brightness(sony_backlight_device);
2025                 break;
2026         case SONYPI_IOCGBAT1CAP:
2027                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2028                         ret = -EIO;
2029                         break;
2030                 }
2031                 if (copy_to_user(argp, &val16, sizeof(val16)))
2032                         ret = -EFAULT;
2033                 break;
2034         case SONYPI_IOCGBAT1REM:
2035                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2036                         ret = -EIO;
2037                         break;
2038                 }
2039                 if (copy_to_user(argp, &val16, sizeof(val16)))
2040                         ret = -EFAULT;
2041                 break;
2042         case SONYPI_IOCGBAT2CAP:
2043                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2044                         ret = -EIO;
2045                         break;
2046                 }
2047                 if (copy_to_user(argp, &val16, sizeof(val16)))
2048                         ret = -EFAULT;
2049                 break;
2050         case SONYPI_IOCGBAT2REM:
2051                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2052                         ret = -EIO;
2053                         break;
2054                 }
2055                 if (copy_to_user(argp, &val16, sizeof(val16)))
2056                         ret = -EFAULT;
2057                 break;
2058         case SONYPI_IOCGBATFLAGS:
2059                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2060                         ret = -EIO;
2061                         break;
2062                 }
2063                 val8 &= 0x07;
2064                 if (copy_to_user(argp, &val8, sizeof(val8)))
2065                         ret = -EFAULT;
2066                 break;
2067         case SONYPI_IOCGBLUE:
2068                 val8 = spic_dev.bluetooth_power;
2069                 if (copy_to_user(argp, &val8, sizeof(val8)))
2070                         ret = -EFAULT;
2071                 break;
2072         case SONYPI_IOCSBLUE:
2073                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2074                         ret = -EFAULT;
2075                         break;
2076                 }
2077                 __sony_pic_set_bluetoothpower(val8);
2078                 break;
2079         /* FAN Controls */
2080         case SONYPI_IOCGFAN:
2081                 if (sony_pic_get_fanspeed(&val8)) {
2082                         ret = -EIO;
2083                         break;
2084                 }
2085                 if (copy_to_user(argp, &val8, sizeof(val8)))
2086                         ret = -EFAULT;
2087                 break;
2088         case SONYPI_IOCSFAN:
2089                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2090                         ret = -EFAULT;
2091                         break;
2092                 }
2093                 if (sony_pic_set_fanspeed(val8))
2094                         ret = -EIO;
2095                 break;
2096         /* GET Temperature (useful under APM) */
2097         case SONYPI_IOCGTEMP:
2098                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2099                         ret = -EIO;
2100                         break;
2101                 }
2102                 if (copy_to_user(argp, &val8, sizeof(val8)))
2103                         ret = -EFAULT;
2104                 break;
2105         default:
2106                 ret = -EINVAL;
2107         }
2108         mutex_unlock(&spic_dev.lock);
2109         return ret;
2110 }
2111
2112 static const struct file_operations sonypi_misc_fops = {
2113         .owner          = THIS_MODULE,
2114         .read           = sonypi_misc_read,
2115         .poll           = sonypi_misc_poll,
2116         .open           = sonypi_misc_open,
2117         .release        = sonypi_misc_release,
2118         .fasync         = sonypi_misc_fasync,
2119         .ioctl          = sonypi_misc_ioctl,
2120 };
2121
2122 static struct miscdevice sonypi_misc_device = {
2123         .minor          = MISC_DYNAMIC_MINOR,
2124         .name           = "sonypi",
2125         .fops           = &sonypi_misc_fops,
2126 };
2127
2128 static void sonypi_compat_report_event(u8 event)
2129 {
2130         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2131         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2132         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2133 }
2134
2135 static int sonypi_compat_init(void)
2136 {
2137         int error;
2138
2139         spin_lock_init(&sonypi_compat.fifo_lock);
2140         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2141                                          &sonypi_compat.fifo_lock);
2142         if (IS_ERR(sonypi_compat.fifo)) {
2143                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2144                 return PTR_ERR(sonypi_compat.fifo);
2145         }
2146
2147         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2148
2149         if (minor != -1)
2150                 sonypi_misc_device.minor = minor;
2151         error = misc_register(&sonypi_misc_device);
2152         if (error) {
2153                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2154                 goto err_free_kfifo;
2155         }
2156         if (minor == -1)
2157                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2158                        sonypi_misc_device.minor);
2159
2160         return 0;
2161
2162 err_free_kfifo:
2163         kfifo_free(sonypi_compat.fifo);
2164         return error;
2165 }
2166
2167 static void sonypi_compat_exit(void)
2168 {
2169         misc_deregister(&sonypi_misc_device);
2170         kfifo_free(sonypi_compat.fifo);
2171 }
2172 #else
2173 static int sonypi_compat_init(void) { return 0; }
2174 static void sonypi_compat_exit(void) { }
2175 static void sonypi_compat_report_event(u8 event) { }
2176 #endif /* CONFIG_SONYPI_COMPAT */
2177
2178 /*
2179  * ACPI callbacks
2180  */
2181 static acpi_status
2182 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2183 {
2184         u32 i;
2185         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2186
2187         switch (resource->type) {
2188         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2189                 {
2190                         /* start IO enumeration */
2191                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2192                         if (!ioport)
2193                                 return AE_ERROR;
2194
2195                         list_add(&ioport->list, &dev->ioports);
2196                         return AE_OK;
2197                 }
2198
2199         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2200                 /* end IO enumeration */
2201                 return AE_OK;
2202
2203         case ACPI_RESOURCE_TYPE_IRQ:
2204                 {
2205                         struct acpi_resource_irq *p = &resource->data.irq;
2206                         struct sony_pic_irq *interrupt = NULL;
2207                         if (!p || !p->interrupt_count) {
2208                                 /*
2209                                  * IRQ descriptors may have no IRQ# bits set,
2210                                  * particularly those those w/ _STA disabled
2211                                  */
2212                                 dprintk("Blank IRQ resource\n");
2213                                 return AE_OK;
2214                         }
2215                         for (i = 0; i < p->interrupt_count; i++) {
2216                                 if (!p->interrupts[i]) {
2217                                         printk(KERN_WARNING DRV_PFX
2218                                                         "Invalid IRQ %d\n",
2219                                                         p->interrupts[i]);
2220                                         continue;
2221                                 }
2222                                 interrupt = kzalloc(sizeof(*interrupt),
2223                                                 GFP_KERNEL);
2224                                 if (!interrupt)
2225                                         return AE_ERROR;
2226
2227                                 list_add(&interrupt->list, &dev->interrupts);
2228                                 interrupt->irq.triggering = p->triggering;
2229                                 interrupt->irq.polarity = p->polarity;
2230                                 interrupt->irq.sharable = p->sharable;
2231                                 interrupt->irq.interrupt_count = 1;
2232                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2233                         }
2234                         return AE_OK;
2235                 }
2236         case ACPI_RESOURCE_TYPE_IO:
2237                 {
2238                         struct acpi_resource_io *io = &resource->data.io;
2239                         struct sony_pic_ioport *ioport =
2240                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2241                         if (!io) {
2242                                 dprintk("Blank IO resource\n");
2243                                 return AE_OK;
2244                         }
2245
2246                         if (!ioport->io1.minimum) {
2247                                 memcpy(&ioport->io1, io, sizeof(*io));
2248                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2249                                                 ioport->io1.address_length);
2250                         }
2251                         else if (!ioport->io2.minimum) {
2252                                 memcpy(&ioport->io2, io, sizeof(*io));
2253                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2254                                                 ioport->io2.address_length);
2255                         }
2256                         else {
2257                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2258                                 return AE_ERROR;
2259                         }
2260                         return AE_OK;
2261                 }
2262         default:
2263                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2264                                 resource->type);
2265
2266         case ACPI_RESOURCE_TYPE_END_TAG:
2267                 return AE_OK;
2268         }
2269         return AE_CTRL_TERMINATE;
2270 }
2271
2272 static int sony_pic_possible_resources(struct acpi_device *device)
2273 {
2274         int result = 0;
2275         acpi_status status = AE_OK;
2276
2277         if (!device)
2278                 return -EINVAL;
2279
2280         /* get device status */
2281         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2282         dprintk("Evaluating _STA\n");
2283         result = acpi_bus_get_status(device);
2284         if (result) {
2285                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2286                 goto end;
2287         }
2288
2289         if (!device->status.enabled)
2290                 dprintk("Device disabled\n");
2291         else
2292                 dprintk("Device enabled\n");
2293
2294         /*
2295          * Query and parse 'method'
2296          */
2297         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2298         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2299                         sony_pic_read_possible_resource, &spic_dev);
2300         if (ACPI_FAILURE(status)) {
2301                 printk(KERN_WARNING DRV_PFX
2302                                 "Failure evaluating %s\n",
2303                                 METHOD_NAME__PRS);
2304                 result = -ENODEV;
2305         }
2306 end:
2307         return result;
2308 }
2309
2310 /*
2311  *  Disable the spic device by calling its _DIS method
2312  */
2313 static int sony_pic_disable(struct acpi_device *device)
2314 {
2315         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2316                         "_DIS", NULL, NULL)))
2317                 return -ENXIO;
2318
2319         dprintk("Device disabled\n");
2320         return 0;
2321 }
2322
2323
2324 /*
2325  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2326  *
2327  *  Call _SRS to set current resources
2328  */
2329 static int sony_pic_enable(struct acpi_device *device,
2330                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2331 {
2332         acpi_status status;
2333         int result = 0;
2334         /* Type 1 resource layout is:
2335          *    IO
2336          *    IO
2337          *    IRQNoFlags
2338          *    End
2339          *
2340          * Type 2 and 3 resource layout is:
2341          *    IO
2342          *    IRQNoFlags
2343          *    End
2344          */
2345         struct {
2346                 struct acpi_resource res1;
2347                 struct acpi_resource res2;
2348                 struct acpi_resource res3;
2349                 struct acpi_resource res4;
2350         } *resource;
2351         struct acpi_buffer buffer = { 0, NULL };
2352
2353         if (!ioport || !irq)
2354                 return -EINVAL;
2355
2356         /* init acpi_buffer */
2357         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2358         if (!resource)
2359                 return -ENOMEM;
2360
2361         buffer.length = sizeof(*resource) + 1;
2362         buffer.pointer = resource;
2363
2364         /* setup Type 1 resources */
2365         if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2366
2367                 /* setup io resources */
2368                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2369                 resource->res1.length = sizeof(struct acpi_resource);
2370                 memcpy(&resource->res1.data.io, &ioport->io1,
2371                                 sizeof(struct acpi_resource_io));
2372
2373                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2374                 resource->res2.length = sizeof(struct acpi_resource);
2375                 memcpy(&resource->res2.data.io, &ioport->io2,
2376                                 sizeof(struct acpi_resource_io));
2377
2378                 /* setup irq resource */
2379                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2380                 resource->res3.length = sizeof(struct acpi_resource);
2381                 memcpy(&resource->res3.data.irq, &irq->irq,
2382                                 sizeof(struct acpi_resource_irq));
2383                 /* we requested a shared irq */
2384                 resource->res3.data.irq.sharable = ACPI_SHARED;
2385
2386                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2387
2388         }
2389         /* setup Type 2/3 resources */
2390         else {
2391                 /* setup io resource */
2392                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2393                 resource->res1.length = sizeof(struct acpi_resource);
2394                 memcpy(&resource->res1.data.io, &ioport->io1,
2395                                 sizeof(struct acpi_resource_io));
2396
2397                 /* setup irq resource */
2398                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2399                 resource->res2.length = sizeof(struct acpi_resource);
2400                 memcpy(&resource->res2.data.irq, &irq->irq,
2401                                 sizeof(struct acpi_resource_irq));
2402                 /* we requested a shared irq */
2403                 resource->res2.data.irq.sharable = ACPI_SHARED;
2404
2405                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2406         }
2407
2408         /* Attempt to set the resource */
2409         dprintk("Evaluating _SRS\n");
2410         status = acpi_set_current_resources(device->handle, &buffer);
2411
2412         /* check for total failure */
2413         if (ACPI_FAILURE(status)) {
2414                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2415                 result = -ENODEV;
2416                 goto end;
2417         }
2418
2419         /* Necessary device initializations calls (from sonypi) */
2420         sony_pic_call1(0x82);
2421         sony_pic_call2(0x81, 0xff);
2422         sony_pic_call1(compat ? 0x92 : 0x82);
2423
2424 end:
2425         kfree(resource);
2426         return result;
2427 }
2428
2429 /*****************
2430  *
2431  * ISR: some event is available
2432  *
2433  *****************/
2434 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2435 {
2436         int i, j;
2437         u8 ev = 0;
2438         u8 data_mask = 0;
2439         u8 device_event = 0;
2440
2441         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2442
2443         ev = inb_p(dev->cur_ioport->io1.minimum);
2444         if (dev->cur_ioport->io2.minimum)
2445                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2446         else
2447                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2448                                 dev->control->evport_offset);
2449
2450         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2451                         ev, data_mask, dev->cur_ioport->io1.minimum,
2452                         dev->control->evport_offset);
2453
2454         if (ev == 0x00 || ev == 0xff)
2455                 return IRQ_HANDLED;
2456
2457         for (i = 0; dev->control->event_types[i].mask; i++) {
2458
2459                 if ((data_mask & dev->control->event_types[i].data) !=
2460                     dev->control->event_types[i].data)
2461                         continue;
2462
2463                 if (!(mask & dev->control->event_types[i].mask))
2464                         continue;
2465
2466                 for (j = 0; dev->control->event_types[i].events[j].event; j++) {
2467                         if (ev == dev->control->event_types[i].events[j].data) {
2468                                 device_event =
2469                                         dev->control->
2470                                                 event_types[i].events[j].event;
2471                                 goto found;
2472                         }
2473                 }
2474         }
2475         /* Still not able to decode the event try to pass
2476          * it over to the minidriver
2477          */
2478         if (dev->control->handle_irq &&
2479                         dev->control->handle_irq(data_mask, ev) == 0)
2480                 return IRQ_HANDLED;
2481
2482         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2483                         ev, data_mask, dev->cur_ioport->io1.minimum,
2484                         dev->control->evport_offset);
2485         return IRQ_HANDLED;
2486
2487 found:
2488         sony_laptop_report_input_event(device_event);
2489         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2490         sonypi_compat_report_event(device_event);
2491
2492         return IRQ_HANDLED;
2493 }
2494
2495 /*****************
2496  *
2497  *  ACPI driver
2498  *
2499  *****************/
2500 static int sony_pic_remove(struct acpi_device *device, int type)
2501 {
2502         struct sony_pic_ioport *io, *tmp_io;
2503         struct sony_pic_irq *irq, *tmp_irq;
2504
2505         if (sony_pic_disable(device)) {
2506                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2507                 return -ENXIO;
2508         }
2509
2510         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2511         release_region(spic_dev.cur_ioport->io1.minimum,
2512                         spic_dev.cur_ioport->io1.address_length);
2513         if (spic_dev.cur_ioport->io2.minimum)
2514                 release_region(spic_dev.cur_ioport->io2.minimum,
2515                                 spic_dev.cur_ioport->io2.address_length);
2516
2517         sonypi_compat_exit();
2518
2519         sony_laptop_remove_input();
2520
2521         /* pf attrs */
2522         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2523         sony_pf_remove();
2524
2525         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2526                 list_del(&io->list);
2527                 kfree(io);
2528         }
2529         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2530                 list_del(&irq->list);
2531                 kfree(irq);
2532         }
2533         spic_dev.cur_ioport = NULL;
2534         spic_dev.cur_irq = NULL;
2535
2536         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2537         return 0;
2538 }
2539
2540 static int sony_pic_add(struct acpi_device *device)
2541 {
2542         int result;
2543         struct sony_pic_ioport *io, *tmp_io;
2544         struct sony_pic_irq *irq, *tmp_irq;
2545
2546         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2547                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2548
2549         spic_dev.acpi_dev = device;
2550         strcpy(acpi_device_class(device), "sony/hotkey");
2551         sony_pic_detect_device_type(&spic_dev);
2552         mutex_init(&spic_dev.lock);
2553
2554         /* read _PRS resources */
2555         result = sony_pic_possible_resources(device);
2556         if (result) {
2557                 printk(KERN_ERR DRV_PFX
2558                                 "Unabe to read possible resources.\n");
2559                 goto err_free_resources;
2560         }
2561
2562         /* setup input devices and helper fifo */
2563         result = sony_laptop_setup_input(device);
2564         if (result) {
2565                 printk(KERN_ERR DRV_PFX
2566                                 "Unabe to create input devices.\n");
2567                 goto err_free_resources;
2568         }
2569
2570         if (sonypi_compat_init())
2571                 goto err_remove_input;
2572
2573         /* request io port */
2574         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2575                 if (request_region(io->io1.minimum, io->io1.address_length,
2576                                         "Sony Programable I/O Device")) {
2577                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2578                                         io->io1.minimum, io->io1.maximum,
2579                                         io->io1.address_length);
2580                         /* Type 1 have 2 ioports */
2581                         if (io->io2.minimum) {
2582                                 if (request_region(io->io2.minimum,
2583                                                 io->io2.address_length,
2584                                                 "Sony Programable I/O Device")) {
2585                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2586                                                         io->io2.minimum, io->io2.maximum,
2587                                                         io->io2.address_length);
2588                                         spic_dev.cur_ioport = io;
2589                                         break;
2590                                 }
2591                                 else {
2592                                         dprintk("Unable to get I/O port2: "
2593                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2594                                                         io->io2.minimum, io->io2.maximum,
2595                                                         io->io2.address_length);
2596                                         release_region(io->io1.minimum,
2597                                                         io->io1.address_length);
2598                                 }
2599                         }
2600                         else {
2601                                 spic_dev.cur_ioport = io;
2602                                 break;
2603                         }
2604                 }
2605         }
2606         if (!spic_dev.cur_ioport) {
2607                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2608                 result = -ENODEV;
2609                 goto err_remove_compat;
2610         }
2611
2612         /* request IRQ */
2613         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2614                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2615                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2616                         dprintk("IRQ: %d - triggering: %d - "
2617                                         "polarity: %d - shr: %d\n",
2618                                         irq->irq.interrupts[0],
2619                                         irq->irq.triggering,
2620                                         irq->irq.polarity,
2621                                         irq->irq.sharable);
2622                         spic_dev.cur_irq = irq;
2623                         break;
2624                 }
2625         }
2626         if (!spic_dev.cur_irq) {
2627                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2628                 result = -ENODEV;
2629                 goto err_release_region;
2630         }
2631
2632         /* set resource status _SRS */
2633         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2634         if (result) {
2635                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2636                 goto err_free_irq;
2637         }
2638
2639         spic_dev.bluetooth_power = -1;
2640         /* create device attributes */
2641         result = sony_pf_add();
2642         if (result)
2643                 goto err_disable_device;
2644
2645         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2646         if (result)
2647                 goto err_remove_pf;
2648
2649         return 0;
2650
2651 err_remove_pf:
2652         sony_pf_remove();
2653
2654 err_disable_device:
2655         sony_pic_disable(device);
2656
2657 err_free_irq:
2658         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2659
2660 err_release_region:
2661         release_region(spic_dev.cur_ioport->io1.minimum,
2662                         spic_dev.cur_ioport->io1.address_length);
2663         if (spic_dev.cur_ioport->io2.minimum)
2664                 release_region(spic_dev.cur_ioport->io2.minimum,
2665                                 spic_dev.cur_ioport->io2.address_length);
2666
2667 err_remove_compat:
2668         sonypi_compat_exit();
2669
2670 err_remove_input:
2671         sony_laptop_remove_input();
2672
2673 err_free_resources:
2674         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2675                 list_del(&io->list);
2676                 kfree(io);
2677         }
2678         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2679                 list_del(&irq->list);
2680                 kfree(irq);
2681         }
2682         spic_dev.cur_ioport = NULL;
2683         spic_dev.cur_irq = NULL;
2684
2685         return result;
2686 }
2687
2688 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2689 {
2690         if (sony_pic_disable(device))
2691                 return -ENXIO;
2692         return 0;
2693 }
2694
2695 static int sony_pic_resume(struct acpi_device *device)
2696 {
2697         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2698         return 0;
2699 }
2700
2701 static const struct acpi_device_id sony_pic_device_ids[] = {
2702         {SONY_PIC_HID, 0},
2703         {"", 0},
2704 };
2705
2706 static struct acpi_driver sony_pic_driver = {
2707         .name = SONY_PIC_DRIVER_NAME,
2708         .class = SONY_PIC_CLASS,
2709         .ids = sony_pic_device_ids,
2710         .owner = THIS_MODULE,
2711         .ops = {
2712                 .add = sony_pic_add,
2713                 .remove = sony_pic_remove,
2714                 .suspend = sony_pic_suspend,
2715                 .resume = sony_pic_resume,
2716                 },
2717 };
2718
2719 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2720         {
2721                 .ident = "Sony Vaio",
2722                 .matches = {
2723                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2724                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2725                 },
2726         },
2727         {
2728                 .ident = "Sony Vaio",
2729                 .matches = {
2730                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2731                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2732                 },
2733         },
2734         { }
2735 };
2736
2737 static int __init sony_laptop_init(void)
2738 {
2739         int result;
2740
2741         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2742                 result = acpi_bus_register_driver(&sony_pic_driver);
2743                 if (result) {
2744                         printk(KERN_ERR DRV_PFX
2745                                         "Unable to register SPIC driver.");
2746                         goto out;
2747                 }
2748         }
2749
2750         result = acpi_bus_register_driver(&sony_nc_driver);
2751         if (result) {
2752                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2753                 goto out_unregister_pic;
2754         }
2755
2756         return 0;
2757
2758 out_unregister_pic:
2759         if (!no_spic)
2760                 acpi_bus_unregister_driver(&sony_pic_driver);
2761 out:
2762         return result;
2763 }
2764
2765 static void __exit sony_laptop_exit(void)
2766 {
2767         acpi_bus_unregister_driver(&sony_nc_driver);
2768         if (!no_spic)
2769                 acpi_bus_unregister_driver(&sony_pic_driver);
2770 }
2771
2772 module_init(sony_laptop_init);
2773 module_exit(sony_laptop_exit);