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   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      "0.5"
  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,     /* no event */
 150         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN */
 151         -1,     /* SONYPI_EVENT_JOGDIAL_UP */
 152         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 153         -1,     /* SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 154         -1,     /* SONYPI_EVENT_JOGDIAL_PRESSED */
 155         -1,     /* SONYPI_EVENT_JOGDIAL_RELEASED */
 156          0,     /* SONYPI_EVENT_CAPTURE_PRESSED */
 157          1,     /* SONYPI_EVENT_CAPTURE_RELEASED */
 158          2,     /* SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 159          3,     /* SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 160          4,     /* SONYPI_EVENT_FNKEY_ESC */
 161          5,     /* SONYPI_EVENT_FNKEY_F1 */
 162          6,     /* SONYPI_EVENT_FNKEY_F2 */
 163          7,     /* SONYPI_EVENT_FNKEY_F3 */
 164          8,     /* SONYPI_EVENT_FNKEY_F4 */
 165          9,     /* SONYPI_EVENT_FNKEY_F5 */
 166         10,     /* SONYPI_EVENT_FNKEY_F6 */
 167         11,     /* SONYPI_EVENT_FNKEY_F7 */
 168         12,     /* SONYPI_EVENT_FNKEY_F8 */
 169         13,     /* SONYPI_EVENT_FNKEY_F9 */
 170         14,     /* SONYPI_EVENT_FNKEY_F10 */
 171         15,     /* SONYPI_EVENT_FNKEY_F11 */
 172         16,     /* SONYPI_EVENT_FNKEY_F12 */
 173         17,     /* SONYPI_EVENT_FNKEY_1 */
 174         18,     /* SONYPI_EVENT_FNKEY_2 */
 175         19,     /* SONYPI_EVENT_FNKEY_D */
 176         20,     /* SONYPI_EVENT_FNKEY_E */
 177         21,     /* SONYPI_EVENT_FNKEY_F */
 178         22,     /* SONYPI_EVENT_FNKEY_S */
 179         23,     /* SONYPI_EVENT_FNKEY_B */
 180         24,     /* SONYPI_EVENT_BLUETOOTH_PRESSED */
 181         25,     /* SONYPI_EVENT_PKEY_P1 */
 182         26,     /* SONYPI_EVENT_PKEY_P2 */
 183         27,     /* SONYPI_EVENT_PKEY_P3 */
 184         28,     /* SONYPI_EVENT_BACK_PRESSED */
 185         -1,     /* SONYPI_EVENT_LID_CLOSED */
 186         -1,     /* SONYPI_EVENT_LID_OPENED */
 187         29,     /* SONYPI_EVENT_BLUETOOTH_ON */
 188         30,     /* SONYPI_EVENT_BLUETOOTH_OFF */
 189         31,     /* SONYPI_EVENT_HELP_PRESSED */
 190         32,     /* SONYPI_EVENT_FNKEY_ONLY */
 191         33,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 192         34,     /* SONYPI_EVENT_JOGDIAL_FAST_UP */
 193         35,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 194         36,     /* SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 195         37,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 196         38,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP */
 197         39,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 198         40,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 199         41,     /* SONYPI_EVENT_ZOOM_PRESSED */
 200         42,     /* SONYPI_EVENT_THUMBPHRASE_PRESSED */
 201         43,     /* SONYPI_EVENT_MEYE_FACE */
 202         44,     /* SONYPI_EVENT_MEYE_OPPOSITE */
 203         45,     /* SONYPI_EVENT_MEMORYSTICK_INSERT */
 204         46,     /* SONYPI_EVENT_MEMORYSTICK_EJECT */
 205         -1,     /* SONYPI_EVENT_ANYBUTTON_RELEASED */
 206         -1,     /* SONYPI_EVENT_BATTERY_INSERT */
 207         -1,     /* SONYPI_EVENT_BATTERY_REMOVE */
 208         -1,     /* SONYPI_EVENT_FNKEY_RELEASED */
 209         47,     /* SONYPI_EVENT_WIRELESS_ON */
 210         48,     /* SONYPI_EVENT_WIRELESS_OFF */
 211 };
 212
 213 static int sony_laptop_input_keycode_map[] = {
 214         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 215         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 216         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 217         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 218         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 219         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 220         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 221         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 222         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 223         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 224         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 225         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 226         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 227         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 228         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 229         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 230         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 231         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 232         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 233         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 234         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 235         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 236         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 237         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 238         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 239         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 240         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 241         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 242         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 243         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 244         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 245         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 246         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 247         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 248         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 249         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 250         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 251         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 252         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 253         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 254         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 255         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 256         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 257         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 258         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 259         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 260         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 261         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 262         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 263 };
 264
 265 /* release buttons after a short delay if pressed */
 266 static void do_sony_laptop_release_key(struct work_struct *work)
 267 {
 268         struct sony_laptop_keypress kp;
 269
 270         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 271                          sizeof(kp)) == sizeof(kp)) {
 272                 msleep(10);
 273                 input_report_key(kp.dev, kp.key, 0);
 274                 input_sync(kp.dev);
 275         }
 276 }
 277 static DECLARE_WORK(sony_laptop_release_key_work,
 278                 do_sony_laptop_release_key);
 279
 280 /* forward event to the input subsystem */
 281 static void sony_laptop_report_input_event(u8 event)
 282 {
 283         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 284         struct input_dev *key_dev = sony_laptop_input.key_dev;
 285         struct sony_laptop_keypress kp = { NULL };
 286
 287         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 288                 /* Nothing, not all VAIOs generate this event */
 289                 return;
 290         }
 291
 292         /* report events */
 293         switch (event) {
 294         /* jog_dev events */
 295         case SONYPI_EVENT_JOGDIAL_UP:
 296         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 297                 input_report_rel(jog_dev, REL_WHEEL, 1);
 298                 input_sync(jog_dev);
 299                 return;
 300
 301         case SONYPI_EVENT_JOGDIAL_DOWN:
 302         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 303                 input_report_rel(jog_dev, REL_WHEEL, -1);
 304                 input_sync(jog_dev);
 305                 return;
 306
 307         /* key_dev events */
 308         case SONYPI_EVENT_JOGDIAL_PRESSED:
 309                 kp.key = BTN_MIDDLE;
 310                 kp.dev = jog_dev;
 311                 break;
 312
 313         default:
 314                 if (event > ARRAY_SIZE (sony_laptop_input_keycode_map)) {
 315                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 316                         break;
 317                 }
 318                 if (sony_laptop_input_index[event] != -1) {
 319                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 320                         if (kp.key != KEY_UNKNOWN)
 321                                 kp.dev = key_dev;
 322                 }
 323                 break;
 324         }
 325
 326         if (kp.dev) {
 327                 input_report_key(kp.dev, kp.key, 1);
 328                 /* we emit the scancode so we can always remap the key */
 329                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 330                 input_sync(kp.dev);
 331                 kfifo_put(sony_laptop_input.fifo,
 332                           (unsigned char *)&kp, sizeof(kp));
 333
 334                 if (!work_pending(&sony_laptop_release_key_work))
 335                         queue_work(sony_laptop_input.wq,
 336                                         &sony_laptop_release_key_work);
 337         } else
 338                 dprintk("unknown input event %.2x\n", event);
 339 }
 340
 341 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 342 {
 343         struct input_dev *jog_dev;
 344         struct input_dev *key_dev;
 345         int i;
 346         int error;
 347
 348         /* don't run again if already initialized */
 349         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 350                 return 0;
 351
 352         /* kfifo */
 353         spin_lock_init(&sony_laptop_input.fifo_lock);
 354         sony_laptop_input.fifo =
 355                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 356                             &sony_laptop_input.fifo_lock);
 357         if (IS_ERR(sony_laptop_input.fifo)) {
 358                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 359                 error = PTR_ERR(sony_laptop_input.fifo);
 360                 goto err_dec_users;
 361         }
 362
 363         /* init workqueue */
 364         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 365         if (!sony_laptop_input.wq) {
 366                 printk(KERN_ERR DRV_PFX
 367                                 "Unabe to create workqueue.\n");
 368                 error = -ENXIO;
 369                 goto err_free_kfifo;
 370         }
 371
 372         /* input keys */
 373         key_dev = input_allocate_device();
 374         if (!key_dev) {
 375                 error = -ENOMEM;
 376                 goto err_destroy_wq;
 377         }
 378
 379         key_dev->name = "Sony Vaio Keys";
 380         key_dev->id.bustype = BUS_ISA;
 381         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 382         key_dev->dev.parent = &acpi_device->dev;
 383
 384         /* Initialize the Input Drivers: special keys */
 385         set_bit(EV_KEY, key_dev->evbit);
 386         set_bit(EV_MSC, key_dev->evbit);
 387         set_bit(MSC_SCAN, key_dev->mscbit);
 388         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 389         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 390         key_dev->keycode = &sony_laptop_input_keycode_map;
 391         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 392                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 393                         set_bit(sony_laptop_input_keycode_map[i],
 394                                 key_dev->keybit);
 395                 }
 396         }
 397
 398         error = input_register_device(key_dev);
 399         if (error)
 400                 goto err_free_keydev;
 401
 402         sony_laptop_input.key_dev = key_dev;
 403
 404         /* jogdial */
 405         jog_dev = input_allocate_device();
 406         if (!jog_dev) {
 407                 error = -ENOMEM;
 408                 goto err_unregister_keydev;
 409         }
 410
 411         jog_dev->name = "Sony Vaio Jogdial";
 412         jog_dev->id.bustype = BUS_ISA;
 413         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 414         key_dev->dev.parent = &acpi_device->dev;
 415
 416         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 417         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 418         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
 419
 420         error = input_register_device(jog_dev);
 421         if (error)
 422                 goto err_free_jogdev;
 423
 424         sony_laptop_input.jog_dev = jog_dev;
 425
 426         return 0;
 427
 428 err_free_jogdev:
 429         input_free_device(jog_dev);
 430
 431 err_unregister_keydev:
 432         input_unregister_device(key_dev);
 433         /* to avoid kref underflow below at input_free_device */
 434         key_dev = NULL;
 435
 436 err_free_keydev:
 437         input_free_device(key_dev);
 438
 439 err_destroy_wq:
 440         destroy_workqueue(sony_laptop_input.wq);
 441
 442 err_free_kfifo:
 443         kfifo_free(sony_laptop_input.fifo);
 444
 445 err_dec_users:
 446         atomic_dec(&sony_laptop_input.users);
 447         return error;
 448 }
 449
 450 static void sony_laptop_remove_input(void)
 451 {
 452         /* cleanup only after the last user has gone */
 453         if (!atomic_dec_and_test(&sony_laptop_input.users))
 454                 return;
 455
 456         /* flush workqueue first */
 457         flush_workqueue(sony_laptop_input.wq);
 458
 459         /* destroy input devs */
 460         input_unregister_device(sony_laptop_input.key_dev);
 461         sony_laptop_input.key_dev = NULL;
 462
 463         if (sony_laptop_input.jog_dev) {
 464                 input_unregister_device(sony_laptop_input.jog_dev);
 465                 sony_laptop_input.jog_dev = NULL;
 466         }
 467
 468         destroy_workqueue(sony_laptop_input.wq);
 469         kfifo_free(sony_laptop_input.fifo);
 470 }
 471
 472 /*********** Platform Device ***********/
 473
 474 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 475 static struct platform_driver sony_pf_driver = {
 476         .driver = {
 477                    .name = "sony-laptop",
 478                    .owner = THIS_MODULE,
 479                    }
 480 };
 481 static struct platform_device *sony_pf_device;
 482
 483 static int sony_pf_add(void)
 484 {
 485         int ret = 0;
 486
 487         /* don't run again if already initialized */
 488         if (atomic_add_return(1, &sony_pf_users) > 1)
 489                 return 0;
 490
 491         ret = platform_driver_register(&sony_pf_driver);
 492         if (ret)
 493                 goto out;
 494
 495         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 496         if (!sony_pf_device) {
 497                 ret = -ENOMEM;
 498                 goto out_platform_registered;
 499         }
 500
 501         ret = platform_device_add(sony_pf_device);
 502         if (ret)
 503                 goto out_platform_alloced;
 504
 505         return 0;
 506
 507       out_platform_alloced:
 508         platform_device_put(sony_pf_device);
 509         sony_pf_device = NULL;
 510       out_platform_registered:
 511         platform_driver_unregister(&sony_pf_driver);
 512       out:
 513         atomic_dec(&sony_pf_users);
 514         return ret;
 515 }
 516
 517 static void sony_pf_remove(void)
 518 {
 519         /* deregister only after the last user has gone */
 520         if (!atomic_dec_and_test(&sony_pf_users))
 521                 return;
 522
 523         platform_device_del(sony_pf_device);
 524         platform_device_put(sony_pf_device);
 525         platform_driver_unregister(&sony_pf_driver);
 526 }
 527
 528 /*********** SNC (SNY5001) Device ***********/
 529
 530 /* the device uses 1-based values, while the backlight subsystem uses
 531    0-based values */
 532 #define SONY_MAX_BRIGHTNESS     8
 533
 534 #define SNC_VALIDATE_IN         0
 535 #define SNC_VALIDATE_OUT        1
 536
 537 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 538                               char *);
 539 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 540                                const char *, size_t);
 541 static int boolean_validate(const int, const int);
 542 static int brightness_default_validate(const int, const int);
 543
 544 struct sony_nc_value {
 545         char *name;             /* name of the entry */
 546         char **acpiget;         /* names of the ACPI get function */
 547         char **acpiset;         /* names of the ACPI set function */
 548         int (*validate)(const int, const int);  /* input/output validation */
 549         int value;              /* current setting */
 550         int valid;              /* Has ever been set */
 551         int debug;              /* active only in debug mode ? */
 552         struct device_attribute devattr;        /* sysfs atribute */
 553 };
 554
 555 #define SNC_HANDLE_NAMES(_name, _values...) \
 556         static char *snc_##_name[] = { _values, NULL }
 557
 558 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 559         { \
 560                 .name           = __stringify(_name), \
 561                 .acpiget        = _getters, \
 562                 .acpiset        = _setters, \
 563                 .validate       = _validate, \
 564                 .debug          = _debug, \
 565                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 566         }
 567
 568 #define SNC_HANDLE_NULL { .name = NULL }
 569
 570 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 571
 572 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 573 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 574
 575 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 576 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 577
 578 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 579 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 580
 581 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 582 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 583
 584 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 585
 586 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 587 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 588
 589 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 590 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 591
 592 SNC_HANDLE_NAMES(PID_get, "GPID");
 593
 594 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 595 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 596
 597 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 598 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 599
 600 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 601 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 602
 603 static struct sony_nc_value sony_nc_values[] = {
 604         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 605                         snc_brightness_def_set, brightness_default_validate, 0),
 606         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 607         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 608         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 609                         boolean_validate, 0),
 610         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 611                         boolean_validate, 1),
 612         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 613                         boolean_validate, 0),
 614         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 615                         boolean_validate, 0),
 616         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 617                         boolean_validate, 0),
 618         /* unknown methods */
 619         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 620         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 621         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 622         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 623         SNC_HANDLE_NULL
 624 };
 625
 626 static acpi_handle sony_nc_acpi_handle;
 627 static struct acpi_device *sony_nc_acpi_device = NULL;
 628
 629 /*
 630  * acpi_evaluate_object wrappers
 631  */
 632 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 633 {
 634         struct acpi_buffer output;
 635         union acpi_object out_obj;
 636         acpi_status status;
 637
 638         output.length = sizeof(out_obj);
 639         output.pointer = &out_obj;
 640
 641         status = acpi_evaluate_object(handle, name, NULL, &output);
 642         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 643                 *result = out_obj.integer.value;
 644                 return 0;
 645         }
 646
 647         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 648
 649         return -1;
 650 }
 651
 652 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 653                             int *result)
 654 {
 655         struct acpi_object_list params;
 656         union acpi_object in_obj;
 657         struct acpi_buffer output;
 658         union acpi_object out_obj;
 659         acpi_status status;
 660
 661         params.count = 1;
 662         params.pointer = &in_obj;
 663         in_obj.type = ACPI_TYPE_INTEGER;
 664         in_obj.integer.value = value;
 665
 666         output.length = sizeof(out_obj);
 667         output.pointer = &out_obj;
 668
 669         status = acpi_evaluate_object(handle, name, &params, &output);
 670         if (status == AE_OK) {
 671                 if (result != NULL) {
 672                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 673                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 674                                        "return type\n");
 675                                 return -1;
 676                         }
 677                         *result = out_obj.integer.value;
 678                 }
 679                 return 0;
 680         }
 681
 682         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 683
 684         return -1;
 685 }
 686
 687 /*
 688  * sony_nc_values input/output validate functions
 689  */
 690
 691 /* brightness_default_validate:
 692  *
 693  * manipulate input output values to keep consistency with the
 694  * backlight framework for which brightness values are 0-based.
 695  */
 696 static int brightness_default_validate(const int direction, const int value)
 697 {
 698         switch (direction) {
 699                 case SNC_VALIDATE_OUT:
 700                         return value - 1;
 701                 case SNC_VALIDATE_IN:
 702                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 703                                 return value + 1;
 704         }
 705         return -EINVAL;
 706 }
 707
 708 /* boolean_validate:
 709  *
 710  * on input validate boolean values 0/1, on output just pass the
 711  * received value.
 712  */
 713 static int boolean_validate(const int direction, const int value)
 714 {
 715         if (direction == SNC_VALIDATE_IN) {
 716                 if (value != 0 && value != 1)
 717                         return -EINVAL;
 718         }
 719         return value;
 720 }
 721
 722 /*
 723  * Sysfs show/store common to all sony_nc_values
 724  */
 725 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 726                               char *buffer)
 727 {
 728         int value;
 729         struct sony_nc_value *item =
 730             container_of(attr, struct sony_nc_value, devattr);
 731
 732         if (!*item->acpiget)
 733                 return -EIO;
 734
 735         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 736                 return -EIO;
 737
 738         if (item->validate)
 739                 value = item->validate(SNC_VALIDATE_OUT, value);
 740
 741         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 742 }
 743
 744 static ssize_t sony_nc_sysfs_store(struct device *dev,
 745                                struct device_attribute *attr,
 746                                const char *buffer, size_t count)
 747 {
 748         int value;
 749         struct sony_nc_value *item =
 750             container_of(attr, struct sony_nc_value, devattr);
 751
 752         if (!item->acpiset)
 753                 return -EIO;
 754
 755         if (count > 31)
 756                 return -EINVAL;
 757
 758         value = simple_strtoul(buffer, NULL, 10);
 759
 760         if (item->validate)
 761                 value = item->validate(SNC_VALIDATE_IN, value);
 762
 763         if (value < 0)
 764                 return value;
 765
 766         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 767                 return -EIO;
 768         item->value = value;
 769         item->valid = 1;
 770         return count;
 771 }
 772
 773
 774 /*
 775  * Backlight device
 776  */
 777 static int sony_backlight_update_status(struct backlight_device *bd)
 778 {
 779         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 780                                 bd->props.brightness + 1, NULL);
 781 }
 782
 783 static int sony_backlight_get_brightness(struct backlight_device *bd)
 784 {
 785         int value;
 786
 787         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 788                 return 0;
 789         /* brightness levels are 1-based, while backlight ones are 0-based */
 790         return value - 1;
 791 }
 792
 793 static struct backlight_device *sony_backlight_device;
 794 static struct backlight_ops sony_backlight_ops = {
 795         .update_status = sony_backlight_update_status,
 796         .get_brightness = sony_backlight_get_brightness,
 797 };
 798
 799 /*
 800  * New SNC-only Vaios event mapping to driver known keys
 801  */
 802 struct sony_nc_event {
 803         u8      data;
 804         u8      event;
 805 };
 806
 807 static struct sony_nc_event *sony_nc_events;
 808
 809 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 810  * for Fn keys
 811  */
 812 static int sony_nc_C_enable(const struct dmi_system_id *id)
 813 {
 814         int result = 0;
 815
 816         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
 817
 818         sony_nc_events = id->driver_data;
 819
 820         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
 821                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
 822                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
 823                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
 824                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
 825                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
 826                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
 827                                 "functionalities may be missing\n");
 828                 return 1;
 829         }
 830         return 0;
 831 }
 832
 833 static struct sony_nc_event sony_C_events[] = {
 834         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 835         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 836         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 837         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 838         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 839         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 840         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 841         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 842         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 843         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 844         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 845         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 846         { 0, 0 },
 847 };
 848
 849 /* SNC-only model map */
 850 static const struct dmi_system_id sony_nc_ids[] = {
 851                 {
 852                         .ident = "Sony Vaio FE Series",
 853                         .callback = sony_nc_C_enable,
 854                         .driver_data = sony_C_events,
 855                         .matches = {
 856                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 857                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
 858                         },
 859                 },
 860                 {
 861                         .ident = "Sony Vaio FZ Series",
 862                         .callback = sony_nc_C_enable,
 863                         .driver_data = sony_C_events,
 864                         .matches = {
 865                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 866                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
 867                         },
 868                 },
 869                 {
 870                         .ident = "Sony Vaio C Series",
 871                         .callback = sony_nc_C_enable,
 872                         .driver_data = sony_C_events,
 873                         .matches = {
 874                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 875                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 876                         },
 877                 },
 878                 { }
 879 };
 880
 881 /*
 882  * ACPI callbacks
 883  */
 884 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 885 {
 886         struct sony_nc_event *evmap;
 887         u32 ev = event;
 888         int result;
 889
 890         if (ev == 0x92) {
 891                 /* read the key pressed from EC.GECR
 892                  * A call to SN07 with 0x0202 will do it as well respecting
 893                  * the current protocol on different OSes
 894                  *
 895                  * Note: the path for GECR may be
 896                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 897                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 898                  *
 899                  * TODO: we may want to do the same for the older GHKE -need
 900                  *       dmi list- so this snippet may become one more callback.
 901                  */
 902                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
 903                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 904                 else
 905                         ev = result & 0xFF;
 906         }
 907
 908         if (sony_nc_events)
 909                 for (evmap = sony_nc_events; evmap->event; evmap++) {
 910                         if (evmap->data == ev) {
 911                                 ev = evmap->event;
 912                                 break;
 913                         }
 914                 }
 915
 916         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 917         sony_laptop_report_input_event(ev);
 918         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 919 }
 920
 921 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 922                                       void *context, void **return_value)
 923 {
 924         struct acpi_namespace_node *node;
 925         union acpi_operand_object *operand;
 926
 927         node = (struct acpi_namespace_node *)handle;
 928         operand = (union acpi_operand_object *)node->object;
 929
 930         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 931                (u32) operand->method.param_count);
 932
 933         return AE_OK;
 934 }
 935
 936 /*
 937  * ACPI device
 938  */
 939 static int sony_nc_resume(struct acpi_device *device)
 940 {
 941         struct sony_nc_value *item;
 942
 943         for (item = sony_nc_values; item->name; item++) {
 944                 int ret;
 945
 946                 if (!item->valid)
 947                         continue;
 948                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 949                                        item->value, NULL);
 950                 if (ret < 0) {
 951                         printk("%s: %d\n", __FUNCTION__, ret);
 952                         break;
 953                 }
 954         }
 955
 956         /* set the last requested brightness level */
 957         if (sony_backlight_device &&
 958                         !sony_backlight_update_status(sony_backlight_device))
 959                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
 960
 961         /* re-initialize models with specific requirements */
 962         dmi_check_system(sony_nc_ids);
 963
 964         return 0;
 965 }
 966
 967 static int sony_nc_add(struct acpi_device *device)
 968 {
 969         acpi_status status;
 970         int result = 0;
 971         acpi_handle handle;
 972         struct sony_nc_value *item;
 973
 974         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 975                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 976
 977         sony_nc_acpi_device = device;
 978         strcpy(acpi_device_class(device), "sony/hotkey");
 979
 980         sony_nc_acpi_handle = device->handle;
 981
 982         /* read device status */
 983         result = acpi_bus_get_status(device);
 984         /* bail IFF the above call was successful and the device is not present */
 985         if (!result && !device->status.present) {
 986                 dprintk("Device not present\n");
 987                 result = -ENODEV;
 988                 goto outwalk;
 989         }
 990
 991         if (debug) {
 992                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
 993                                              1, sony_walk_callback, NULL, NULL);
 994                 if (ACPI_FAILURE(status)) {
 995                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
 996                         result = -ENODEV;
 997                         goto outwalk;
 998                 }
 999         }
1000
1001         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1002          * should be respected as we already checked for the device presence above */
1003         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1004                 dprintk("Invoking _INI\n");
1005                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1006                                                 NULL, NULL)))
1007                         dprintk("_INI Method failed\n");
1008         }
1009
1010         /* setup input devices and helper fifo */
1011         result = sony_laptop_setup_input(device);
1012         if (result) {
1013                 printk(KERN_ERR DRV_PFX
1014                                 "Unabe to create input devices.\n");
1015                 goto outwalk;
1016         }
1017
1018         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1019                                              ACPI_DEVICE_NOTIFY,
1020                                              sony_acpi_notify, NULL);
1021         if (ACPI_FAILURE(status)) {
1022                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1023                 result = -ENODEV;
1024                 goto outinput;
1025         }
1026
1027         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1028                 sony_backlight_device = backlight_device_register("sony", NULL,
1029                                                                   NULL,
1030                                                                   &sony_backlight_ops);
1031
1032                 if (IS_ERR(sony_backlight_device)) {
1033                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1034                         sony_backlight_device = NULL;
1035                 } else {
1036                         sony_backlight_device->props.brightness =
1037                             sony_backlight_get_brightness
1038                             (sony_backlight_device);
1039                         sony_backlight_device->props.max_brightness =
1040                             SONY_MAX_BRIGHTNESS - 1;
1041                 }
1042
1043         }
1044
1045         /* initialize models with specific requirements */
1046         dmi_check_system(sony_nc_ids);
1047
1048         result = sony_pf_add();
1049         if (result)
1050                 goto outbacklight;
1051
1052         /* create sony_pf sysfs attributes related to the SNC device */
1053         for (item = sony_nc_values; item->name; ++item) {
1054
1055                 if (!debug && item->debug)
1056                         continue;
1057
1058                 /* find the available acpiget as described in the DSDT */
1059                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1060                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1061                                                          *item->acpiget,
1062                                                          &handle))) {
1063                                 dprintk("Found %s getter: %s\n",
1064                                                 item->name, *item->acpiget);
1065                                 item->devattr.attr.mode |= S_IRUGO;
1066                                 break;
1067                         }
1068                 }
1069
1070                 /* find the available acpiset as described in the DSDT */
1071                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1072                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1073                                                          *item->acpiset,
1074                                                          &handle))) {
1075                                 dprintk("Found %s setter: %s\n",
1076                                                 item->name, *item->acpiset);
1077                                 item->devattr.attr.mode |= S_IWUSR;
1078                                 break;
1079                         }
1080                 }
1081
1082                 if (item->devattr.attr.mode != 0) {
1083                         result =
1084                             device_create_file(&sony_pf_device->dev,
1085                                                &item->devattr);
1086                         if (result)
1087                                 goto out_sysfs;
1088                 }
1089         }
1090
1091         return 0;
1092
1093       out_sysfs:
1094         for (item = sony_nc_values; item->name; ++item) {
1095                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1096         }
1097         sony_pf_remove();
1098
1099       outbacklight:
1100         if (sony_backlight_device)
1101                 backlight_device_unregister(sony_backlight_device);
1102
1103         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1104                                             ACPI_DEVICE_NOTIFY,
1105                                             sony_acpi_notify);
1106         if (ACPI_FAILURE(status))
1107                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1108
1109       outinput:
1110         sony_laptop_remove_input();
1111
1112       outwalk:
1113         return result;
1114 }
1115
1116 static int sony_nc_remove(struct acpi_device *device, int type)
1117 {
1118         acpi_status status;
1119         struct sony_nc_value *item;
1120
1121         if (sony_backlight_device)
1122                 backlight_device_unregister(sony_backlight_device);
1123
1124         sony_nc_acpi_device = NULL;
1125
1126         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1127                                             ACPI_DEVICE_NOTIFY,
1128                                             sony_acpi_notify);
1129         if (ACPI_FAILURE(status))
1130                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1131
1132         for (item = sony_nc_values; item->name; ++item) {
1133                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1134         }
1135
1136         sony_pf_remove();
1137         sony_laptop_remove_input();
1138         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1139
1140         return 0;
1141 }
1142
1143 static const struct acpi_device_id sony_device_ids[] = {
1144         {SONY_NC_HID, 0},
1145         {SONY_PIC_HID, 0},
1146         {"", 0},
1147 };
1148 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1149
1150 static const struct acpi_device_id sony_nc_device_ids[] = {
1151         {SONY_NC_HID, 0},
1152         {"", 0},
1153 };
1154
1155 static struct acpi_driver sony_nc_driver = {
1156         .name = SONY_NC_DRIVER_NAME,
1157         .class = SONY_NC_CLASS,
1158         .ids = sony_nc_device_ids,
1159         .owner = THIS_MODULE,
1160         .ops = {
1161                 .add = sony_nc_add,
1162                 .remove = sony_nc_remove,
1163                 .resume = sony_nc_resume,
1164                 },
1165 };
1166
1167 /*********** SPIC (SNY6001) Device ***********/
1168
1169 #define SONYPI_DEVICE_TYPE1     0x00000001
1170 #define SONYPI_DEVICE_TYPE2     0x00000002
1171 #define SONYPI_DEVICE_TYPE3     0x00000004
1172
1173 #define SONYPI_TYPE1_OFFSET     0x04
1174 #define SONYPI_TYPE2_OFFSET     0x12
1175 #define SONYPI_TYPE3_OFFSET     0x12
1176
1177 struct sony_pic_ioport {
1178         struct acpi_resource_io io1;
1179         struct acpi_resource_io io2;
1180         struct list_head        list;
1181 };
1182
1183 struct sony_pic_irq {
1184         struct acpi_resource_irq        irq;
1185         struct list_head                list;
1186 };
1187
1188 struct sony_pic_dev {
1189         int                     model;
1190         u16                     evport_offset;
1191         u8                      camera_power;
1192         u8                      bluetooth_power;
1193         u8                      wwan_power;
1194         struct acpi_device      *acpi_dev;
1195         struct sony_pic_irq     *cur_irq;
1196         struct sony_pic_ioport  *cur_ioport;
1197         struct list_head        interrupts;
1198         struct list_head        ioports;
1199         struct mutex            lock;
1200 };
1201
1202 static struct sony_pic_dev spic_dev = {
1203         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1204         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1205 };
1206
1207 /* Event masks */
1208 #define SONYPI_JOGGER_MASK                      0x00000001
1209 #define SONYPI_CAPTURE_MASK                     0x00000002
1210 #define SONYPI_FNKEY_MASK                       0x00000004
1211 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1212 #define SONYPI_PKEY_MASK                        0x00000010
1213 #define SONYPI_BACK_MASK                        0x00000020
1214 #define SONYPI_HELP_MASK                        0x00000040
1215 #define SONYPI_LID_MASK                         0x00000080
1216 #define SONYPI_ZOOM_MASK                        0x00000100
1217 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1218 #define SONYPI_MEYE_MASK                        0x00000400
1219 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1220 #define SONYPI_BATTERY_MASK                     0x00001000
1221 #define SONYPI_WIRELESS_MASK                    0x00002000
1222
1223 struct sonypi_event {
1224         u8      data;
1225         u8      event;
1226 };
1227
1228 /* The set of possible button release events */
1229 static struct sonypi_event sonypi_releaseev[] = {
1230         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1231         { 0, 0 }
1232 };
1233
1234 /* The set of possible jogger events  */
1235 static struct sonypi_event sonypi_joggerev[] = {
1236         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1237         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1238         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1239         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1240         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1241         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1242         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1243         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1244         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1245         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1246         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1247         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1248         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1249         { 0, 0 }
1250 };
1251
1252 /* The set of possible capture button events */
1253 static struct sonypi_event sonypi_captureev[] = {
1254         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1255         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1256         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1257         { 0, 0 }
1258 };
1259
1260 /* The set of possible fnkeys events */
1261 static struct sonypi_event sonypi_fnkeyev[] = {
1262         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1263         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1264         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1265         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1266         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1267         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1268         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1269         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1270         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1271         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1272         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1273         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1274         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1275         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1276         { 0x21, SONYPI_EVENT_FNKEY_1 },
1277         { 0x22, SONYPI_EVENT_FNKEY_2 },
1278         { 0x31, SONYPI_EVENT_FNKEY_D },
1279         { 0x32, SONYPI_EVENT_FNKEY_E },
1280         { 0x33, SONYPI_EVENT_FNKEY_F },
1281         { 0x34, SONYPI_EVENT_FNKEY_S },
1282         { 0x35, SONYPI_EVENT_FNKEY_B },
1283         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1284         { 0, 0 }
1285 };
1286
1287 /* The set of possible program key events */
1288 static struct sonypi_event sonypi_pkeyev[] = {
1289         { 0x01, SONYPI_EVENT_PKEY_P1 },
1290         { 0x02, SONYPI_EVENT_PKEY_P2 },
1291         { 0x04, SONYPI_EVENT_PKEY_P3 },
1292         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1293         { 0, 0 }
1294 };
1295
1296 /* The set of possible bluetooth events */
1297 static struct sonypi_event sonypi_blueev[] = {
1298         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1299         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1300         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1301         { 0, 0 }
1302 };
1303
1304 /* The set of possible wireless events */
1305 static struct sonypi_event sonypi_wlessev[] = {
1306         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1307         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1308         { 0, 0 }
1309 };
1310
1311 /* The set of possible back button events */
1312 static struct sonypi_event sonypi_backev[] = {
1313         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1314         { 0, 0 }
1315 };
1316
1317 /* The set of possible help button events */
1318 static struct sonypi_event sonypi_helpev[] = {
1319         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1320         { 0, 0 }
1321 };
1322
1323
1324 /* The set of possible lid events */
1325 static struct sonypi_event sonypi_lidev[] = {
1326         { 0x51, SONYPI_EVENT_LID_CLOSED },
1327         { 0x50, SONYPI_EVENT_LID_OPENED },
1328         { 0, 0 }
1329 };
1330
1331 /* The set of possible zoom events */
1332 static struct sonypi_event sonypi_zoomev[] = {
1333         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1334         { 0, 0 }
1335 };
1336
1337 /* The set of possible thumbphrase events */
1338 static struct sonypi_event sonypi_thumbphraseev[] = {
1339         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1340         { 0, 0 }
1341 };
1342
1343 /* The set of possible motioneye camera events */
1344 static struct sonypi_event sonypi_meyeev[] = {
1345         { 0x00, SONYPI_EVENT_MEYE_FACE },
1346         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1347         { 0, 0 }
1348 };
1349
1350 /* The set of possible memorystick events */
1351 static struct sonypi_event sonypi_memorystickev[] = {
1352         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1353         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1354         { 0, 0 }
1355 };
1356
1357 /* The set of possible battery events */
1358 static struct sonypi_event sonypi_batteryev[] = {
1359         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1360         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1361         { 0, 0 }
1362 };
1363
1364 static struct sonypi_eventtypes {
1365         int                     model;
1366         u8                      data;
1367         unsigned long           mask;
1368         struct sonypi_event *   events;
1369 } sony_pic_eventtypes[] = {
1370         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1371         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1372         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1373         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1374         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1375         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1376         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1377         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1378         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1379         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1380
1381         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1382         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1383         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1384         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1385         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1386         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1387         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1388         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1389         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1390         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1391         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1392         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1393         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1394         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1395
1396         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1397         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1398         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1399         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1400         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1401         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1402         { 0 }
1403 };
1404
1405 static int sony_pic_detect_device_type(void)
1406 {
1407         struct pci_dev *pcidev;
1408         int model = 0;
1409
1410         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1411                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1412                 model = SONYPI_DEVICE_TYPE1;
1413
1414         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1415                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1416                 model = SONYPI_DEVICE_TYPE3;
1417
1418         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1419                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1420                 model = SONYPI_DEVICE_TYPE3;
1421
1422         else
1423                 model = SONYPI_DEVICE_TYPE2;
1424
1425         if (pcidev)
1426                 pci_dev_put(pcidev);
1427
1428         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1429                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1430                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1431         return model;
1432 }
1433
1434 #define ITERATIONS_LONG         10000
1435 #define ITERATIONS_SHORT        10
1436 #define wait_on_command(command, iterations) {                          \
1437         unsigned int n = iterations;                                    \
1438         while (--n && (command))                                        \
1439                 udelay(1);                                              \
1440         if (!n)                                                         \
1441                 dprintk("command failed at %s : %s (line %d)\n",        \
1442                                 __FILE__, __FUNCTION__, __LINE__);      \
1443 }
1444
1445 static u8 sony_pic_call1(u8 dev)
1446 {
1447         u8 v1, v2;
1448
1449         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1450                         ITERATIONS_LONG);
1451         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1452         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1453         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1454         dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1455         return v2;
1456 }
1457
1458 static u8 sony_pic_call2(u8 dev, u8 fn)
1459 {
1460         u8 v1;
1461
1462         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1463                         ITERATIONS_LONG);
1464         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1465         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1466                         ITERATIONS_LONG);
1467         outb(fn, spic_dev.cur_ioport->io1.minimum);
1468         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1469         dprintk("sony_pic_call2: 0x%.4x\n", v1);
1470         return v1;
1471 }
1472
1473 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1474 {
1475         u8 v1;
1476
1477         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, 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, ITERATIONS_LONG);
1480         outb(fn, spic_dev.cur_ioport->io1.minimum);
1481         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1482         outb(v, spic_dev.cur_ioport->io1.minimum);
1483         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1484         dprintk("sony_pic_call3: 0x%.4x\n", v1);
1485         return v1;
1486 }
1487
1488 /* camera tests and poweron/poweroff */
1489 #define SONYPI_CAMERA_PICTURE           5
1490 #define SONYPI_CAMERA_CONTROL           0x10
1491
1492 #define SONYPI_CAMERA_BRIGHTNESS                0
1493 #define SONYPI_CAMERA_CONTRAST                  1
1494 #define SONYPI_CAMERA_HUE                       2
1495 #define SONYPI_CAMERA_COLOR                     3
1496 #define SONYPI_CAMERA_SHARPNESS                 4
1497
1498 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1499 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1500 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1501 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1502
1503 /* the rest don't need a loop until not 0xff */
1504 #define SONYPI_CAMERA_AGC                       6
1505 #define SONYPI_CAMERA_AGC_MASK                  0x30
1506 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1507
1508 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1509 #define SONYPI_CAMERA_CONTROL                   0x10
1510
1511 #define SONYPI_CAMERA_STATUS                    7
1512 #define SONYPI_CAMERA_STATUS_READY              0x2
1513 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1514
1515 #define SONYPI_DIRECTION_BACKWARDS              0x4
1516
1517 #define SONYPI_CAMERA_REVISION                  8
1518 #define SONYPI_CAMERA_ROMVERSION                9
1519
1520 static int __sony_pic_camera_ready(void)
1521 {
1522         u8 v;
1523
1524         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1525         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1526 }
1527
1528 static int __sony_pic_camera_off(void)
1529 {
1530         if (!camera) {
1531                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1532                 return -ENODEV;
1533         }
1534
1535         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1536                                 SONYPI_CAMERA_MUTE_MASK),
1537                         ITERATIONS_SHORT);
1538
1539         if (spic_dev.camera_power) {
1540                 sony_pic_call2(0x91, 0);
1541                 spic_dev.camera_power = 0;
1542         }
1543         return 0;
1544 }
1545
1546 static int __sony_pic_camera_on(void)
1547 {
1548         int i, j, x;
1549
1550         if (!camera) {
1551                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1552                 return -ENODEV;
1553         }
1554
1555         if (spic_dev.camera_power)
1556                 return 0;
1557
1558         for (j = 5; j > 0; j--) {
1559
1560                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1561                         msleep(10);
1562                 sony_pic_call1(0x93);
1563
1564                 for (i = 400; i > 0; i--) {
1565                         if (__sony_pic_camera_ready())
1566                                 break;
1567                         msleep(10);
1568                 }
1569                 if (i)
1570                         break;
1571         }
1572
1573         if (j == 0) {
1574                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1575                 return -ENODEV;
1576         }
1577
1578         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1579                                 0x5a),
1580                         ITERATIONS_SHORT);
1581
1582         spic_dev.camera_power = 1;
1583         return 0;
1584 }
1585
1586 /* External camera command (exported to the motion eye v4l driver) */
1587 int sony_pic_camera_command(int command, u8 value)
1588 {
1589         if (!camera)
1590                 return -EIO;
1591
1592         mutex_lock(&spic_dev.lock);
1593
1594         switch (command) {
1595         case SONY_PIC_COMMAND_SETCAMERA:
1596                 if (value)
1597                         __sony_pic_camera_on();
1598                 else
1599                         __sony_pic_camera_off();
1600                 break;
1601         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1602                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1603                                 ITERATIONS_SHORT);
1604                 break;
1605         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1606                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1607                                 ITERATIONS_SHORT);
1608                 break;
1609         case SONY_PIC_COMMAND_SETCAMERAHUE:
1610                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1611                                 ITERATIONS_SHORT);
1612                 break;
1613         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1614                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1615                                 ITERATIONS_SHORT);
1616                 break;
1617         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1618                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1619                                 ITERATIONS_SHORT);
1620                 break;
1621         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1622                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1623                                 ITERATIONS_SHORT);
1624                 break;
1625         case SONY_PIC_COMMAND_SETCAMERAAGC:
1626                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1627                                 ITERATIONS_SHORT);
1628                 break;
1629         default:
1630                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1631                        command);
1632                 break;
1633         }
1634         mutex_unlock(&spic_dev.lock);
1635         return 0;
1636 }
1637 EXPORT_SYMBOL(sony_pic_camera_command);
1638
1639 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1640 static void sony_pic_set_wwanpower(u8 state)
1641 {
1642         state = !!state;
1643         mutex_lock(&spic_dev.lock);
1644         if (spic_dev.wwan_power == state) {
1645                 mutex_unlock(&spic_dev.lock);
1646                 return;
1647         }
1648         sony_pic_call2(0xB0, state);
1649         spic_dev.wwan_power = state;
1650         mutex_unlock(&spic_dev.lock);
1651 }
1652
1653 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1654                 struct device_attribute *attr,
1655                 const char *buffer, size_t count)
1656 {
1657         unsigned long value;
1658         if (count > 31)
1659                 return -EINVAL;
1660
1661         value = simple_strtoul(buffer, NULL, 10);
1662         sony_pic_set_wwanpower(value);
1663
1664         return count;
1665 }
1666
1667 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1668                 struct device_attribute *attr, char *buffer)
1669 {
1670         ssize_t count;
1671         mutex_lock(&spic_dev.lock);
1672         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1673         mutex_unlock(&spic_dev.lock);
1674         return count;
1675 }
1676
1677 /* bluetooth subsystem power state */
1678 static void __sony_pic_set_bluetoothpower(u8 state)
1679 {
1680         state = !!state;
1681         if (spic_dev.bluetooth_power == state)
1682                 return;
1683         sony_pic_call2(0x96, state);
1684         sony_pic_call1(0x82);
1685         spic_dev.bluetooth_power = state;
1686 }
1687
1688 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1689                 struct device_attribute *attr,
1690                 const char *buffer, size_t count)
1691 {
1692         unsigned long value;
1693         if (count > 31)
1694                 return -EINVAL;
1695
1696         value = simple_strtoul(buffer, NULL, 10);
1697         mutex_lock(&spic_dev.lock);
1698         __sony_pic_set_bluetoothpower(value);
1699         mutex_unlock(&spic_dev.lock);
1700
1701         return count;
1702 }
1703
1704 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1705                 struct device_attribute *attr, char *buffer)
1706 {
1707         ssize_t count = 0;
1708         mutex_lock(&spic_dev.lock);
1709         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1710         mutex_unlock(&spic_dev.lock);
1711         return count;
1712 }
1713
1714 /* fan speed */
1715 /* FAN0 information (reverse engineered from ACPI tables) */
1716 #define SONY_PIC_FAN0_STATUS    0x93
1717 static int sony_pic_set_fanspeed(unsigned long value)
1718 {
1719         return ec_write(SONY_PIC_FAN0_STATUS, value);
1720 }
1721
1722 static int sony_pic_get_fanspeed(u8 *value)
1723 {
1724         return ec_read(SONY_PIC_FAN0_STATUS, value);
1725 }
1726
1727 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1728                 struct device_attribute *attr,
1729                 const char *buffer, size_t count)
1730 {
1731         unsigned long value;
1732         if (count > 31)
1733                 return -EINVAL;
1734
1735         value = simple_strtoul(buffer, NULL, 10);
1736         if (sony_pic_set_fanspeed(value))
1737                 return -EIO;
1738
1739         return count;
1740 }
1741
1742 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1743                 struct device_attribute *attr, char *buffer)
1744 {
1745         u8 value = 0;
1746         if (sony_pic_get_fanspeed(&value))
1747                 return -EIO;
1748
1749         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1750 }
1751
1752 #define SPIC_ATTR(_name, _mode)                                 \
1753 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1754                 _mode, sony_pic_## _name ##_show,               \
1755                 sony_pic_## _name ##_store)
1756
1757 static SPIC_ATTR(bluetoothpower, 0644);
1758 static SPIC_ATTR(wwanpower, 0644);
1759 static SPIC_ATTR(fanspeed, 0644);
1760
1761 static struct attribute *spic_attributes[] = {
1762         &spic_attr_bluetoothpower.attr,
1763         &spic_attr_wwanpower.attr,
1764         &spic_attr_fanspeed.attr,
1765         NULL
1766 };
1767
1768 static struct attribute_group spic_attribute_group = {
1769         .attrs = spic_attributes
1770 };
1771
1772 /******** SONYPI compatibility **********/
1773 #ifdef CONFIG_SONYPI_COMPAT
1774
1775 /* battery / brightness / temperature  addresses */
1776 #define SONYPI_BAT_FLAGS        0x81
1777 #define SONYPI_LCD_LIGHT        0x96
1778 #define SONYPI_BAT1_PCTRM       0xa0
1779 #define SONYPI_BAT1_LEFT        0xa2
1780 #define SONYPI_BAT1_MAXRT       0xa4
1781 #define SONYPI_BAT2_PCTRM       0xa8
1782 #define SONYPI_BAT2_LEFT        0xaa
1783 #define SONYPI_BAT2_MAXRT       0xac
1784 #define SONYPI_BAT1_MAXTK       0xb0
1785 #define SONYPI_BAT1_FULL        0xb2
1786 #define SONYPI_BAT2_MAXTK       0xb8
1787 #define SONYPI_BAT2_FULL        0xba
1788 #define SONYPI_TEMP_STATUS      0xC1
1789
1790 struct sonypi_compat_s {
1791         struct fasync_struct    *fifo_async;
1792         struct kfifo            *fifo;
1793         spinlock_t              fifo_lock;
1794         wait_queue_head_t       fifo_proc_list;
1795         atomic_t                open_count;
1796 };
1797 static struct sonypi_compat_s sonypi_compat = {
1798         .open_count = ATOMIC_INIT(0),
1799 };
1800
1801 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1802 {
1803         int retval;
1804
1805         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1806         if (retval < 0)
1807                 return retval;
1808         return 0;
1809 }
1810
1811 static int sonypi_misc_release(struct inode *inode, struct file *file)
1812 {
1813         sonypi_misc_fasync(-1, file, 0);
1814         atomic_dec(&sonypi_compat.open_count);
1815         return 0;
1816 }
1817
1818 static int sonypi_misc_open(struct inode *inode, struct file *file)
1819 {
1820         /* Flush input queue on first open */
1821         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1822                 kfifo_reset(sonypi_compat.fifo);
1823         return 0;
1824 }
1825
1826 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1827                                 size_t count, loff_t *pos)
1828 {
1829         ssize_t ret;
1830         unsigned char c;
1831
1832         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1833             (file->f_flags & O_NONBLOCK))
1834                 return -EAGAIN;
1835
1836         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1837                                        kfifo_len(sonypi_compat.fifo) != 0);
1838         if (ret)
1839                 return ret;
1840
1841         while (ret < count &&
1842                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1843                 if (put_user(c, buf++))
1844                         return -EFAULT;
1845                 ret++;
1846         }
1847
1848         if (ret > 0) {
1849                 struct inode *inode = file->f_path.dentry->d_inode;
1850                 inode->i_atime = current_fs_time(inode->i_sb);
1851         }
1852
1853         return ret;
1854 }
1855
1856 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1857 {
1858         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1859         if (kfifo_len(sonypi_compat.fifo))
1860                 return POLLIN | POLLRDNORM;
1861         return 0;
1862 }
1863
1864 static int ec_read16(u8 addr, u16 *value)
1865 {
1866         u8 val_lb, val_hb;
1867         if (ec_read(addr, &val_lb))
1868                 return -1;
1869         if (ec_read(addr + 1, &val_hb))
1870                 return -1;
1871         *value = val_lb | (val_hb << 8);
1872         return 0;
1873 }
1874
1875 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1876                              unsigned int cmd, unsigned long arg)
1877 {
1878         int ret = 0;
1879         void __user *argp = (void __user *)arg;
1880         u8 val8;
1881         u16 val16;
1882         int value;
1883
1884         mutex_lock(&spic_dev.lock);
1885         switch (cmd) {
1886         case SONYPI_IOCGBRT:
1887                 if (sony_backlight_device == NULL) {
1888                         ret = -EIO;
1889                         break;
1890                 }
1891                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1892                         ret = -EIO;
1893                         break;
1894                 }
1895                 val8 = ((value & 0xff) - 1) << 5;
1896                 if (copy_to_user(argp, &val8, sizeof(val8)))
1897                                 ret = -EFAULT;
1898                 break;
1899         case SONYPI_IOCSBRT:
1900                 if (sony_backlight_device == NULL) {
1901                         ret = -EIO;
1902                         break;
1903                 }
1904                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1905                         ret = -EFAULT;
1906                         break;
1907                 }
1908                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1909                                 (val8 >> 5) + 1, NULL)) {
1910                         ret = -EIO;
1911                         break;
1912                 }
1913                 /* sync the backlight device status */
1914                 sony_backlight_device->props.brightness =
1915                     sony_backlight_get_brightness(sony_backlight_device);
1916                 break;
1917         case SONYPI_IOCGBAT1CAP:
1918                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1919                         ret = -EIO;
1920                         break;
1921                 }
1922                 if (copy_to_user(argp, &val16, sizeof(val16)))
1923                         ret = -EFAULT;
1924                 break;
1925         case SONYPI_IOCGBAT1REM:
1926                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1927                         ret = -EIO;
1928                         break;
1929                 }
1930                 if (copy_to_user(argp, &val16, sizeof(val16)))
1931                         ret = -EFAULT;
1932                 break;
1933         case SONYPI_IOCGBAT2CAP:
1934                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1935                         ret = -EIO;
1936                         break;
1937                 }
1938                 if (copy_to_user(argp, &val16, sizeof(val16)))
1939                         ret = -EFAULT;
1940                 break;
1941         case SONYPI_IOCGBAT2REM:
1942                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1943                         ret = -EIO;
1944                         break;
1945                 }
1946                 if (copy_to_user(argp, &val16, sizeof(val16)))
1947                         ret = -EFAULT;
1948                 break;
1949         case SONYPI_IOCGBATFLAGS:
1950                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1951                         ret = -EIO;
1952                         break;
1953                 }
1954                 val8 &= 0x07;
1955                 if (copy_to_user(argp, &val8, sizeof(val8)))
1956                         ret = -EFAULT;
1957                 break;
1958         case SONYPI_IOCGBLUE:
1959                 val8 = spic_dev.bluetooth_power;
1960                 if (copy_to_user(argp, &val8, sizeof(val8)))
1961                         ret = -EFAULT;
1962                 break;
1963         case SONYPI_IOCSBLUE:
1964                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1965                         ret = -EFAULT;
1966                         break;
1967                 }
1968                 __sony_pic_set_bluetoothpower(val8);
1969                 break;
1970         /* FAN Controls */
1971         case SONYPI_IOCGFAN:
1972                 if (sony_pic_get_fanspeed(&val8)) {
1973                         ret = -EIO;
1974                         break;
1975                 }
1976                 if (copy_to_user(argp, &val8, sizeof(val8)))
1977                         ret = -EFAULT;
1978                 break;
1979         case SONYPI_IOCSFAN:
1980                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1981                         ret = -EFAULT;
1982                         break;
1983                 }
1984                 if (sony_pic_set_fanspeed(val8))
1985                         ret = -EIO;
1986                 break;
1987         /* GET Temperature (useful under APM) */
1988         case SONYPI_IOCGTEMP:
1989                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1990                         ret = -EIO;
1991                         break;
1992                 }
1993                 if (copy_to_user(argp, &val8, sizeof(val8)))
1994                         ret = -EFAULT;
1995                 break;
1996         default:
1997                 ret = -EINVAL;
1998         }
1999         mutex_unlock(&spic_dev.lock);
2000         return ret;
2001 }
2002
2003 static const struct file_operations sonypi_misc_fops = {
2004         .owner          = THIS_MODULE,
2005         .read           = sonypi_misc_read,
2006         .poll           = sonypi_misc_poll,
2007         .open           = sonypi_misc_open,
2008         .release        = sonypi_misc_release,
2009         .fasync         = sonypi_misc_fasync,
2010         .ioctl          = sonypi_misc_ioctl,
2011 };
2012
2013 static struct miscdevice sonypi_misc_device = {
2014         .minor          = MISC_DYNAMIC_MINOR,
2015         .name           = "sonypi",
2016         .fops           = &sonypi_misc_fops,
2017 };
2018
2019 static void sonypi_compat_report_event(u8 event)
2020 {
2021         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2022         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2023         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2024 }
2025
2026 static int sonypi_compat_init(void)
2027 {
2028         int error;
2029
2030         spin_lock_init(&sonypi_compat.fifo_lock);
2031         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2032                                          &sonypi_compat.fifo_lock);
2033         if (IS_ERR(sonypi_compat.fifo)) {
2034                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2035                 return PTR_ERR(sonypi_compat.fifo);
2036         }
2037
2038         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2039
2040         if (minor != -1)
2041                 sonypi_misc_device.minor = minor;
2042         error = misc_register(&sonypi_misc_device);
2043         if (error) {
2044                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2045                 goto err_free_kfifo;
2046         }
2047         if (minor == -1)
2048                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2049                        sonypi_misc_device.minor);
2050
2051         return 0;
2052
2053 err_free_kfifo:
2054         kfifo_free(sonypi_compat.fifo);
2055         return error;
2056 }
2057
2058 static void sonypi_compat_exit(void)
2059 {
2060         misc_deregister(&sonypi_misc_device);
2061         kfifo_free(sonypi_compat.fifo);
2062 }
2063 #else
2064 static int sonypi_compat_init(void) { return 0; }
2065 static void sonypi_compat_exit(void) { }
2066 static void sonypi_compat_report_event(u8 event) { }
2067 #endif /* CONFIG_SONYPI_COMPAT */
2068
2069 /*
2070  * ACPI callbacks
2071  */
2072 static acpi_status
2073 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2074 {
2075         u32 i;
2076         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2077
2078         switch (resource->type) {
2079         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2080                 {
2081                         /* start IO enumeration */
2082                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2083                         if (!ioport)
2084                                 return AE_ERROR;
2085
2086                         list_add(&ioport->list, &dev->ioports);
2087                         return AE_OK;
2088                 }
2089
2090         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2091                 /* end IO enumeration */
2092                 return AE_OK;
2093
2094         case ACPI_RESOURCE_TYPE_IRQ:
2095                 {
2096                         struct acpi_resource_irq *p = &resource->data.irq;
2097                         struct sony_pic_irq *interrupt = NULL;
2098                         if (!p || !p->interrupt_count) {
2099                                 /*
2100                                  * IRQ descriptors may have no IRQ# bits set,
2101                                  * particularly those those w/ _STA disabled
2102                                  */
2103                                 dprintk("Blank IRQ resource\n");
2104                                 return AE_OK;
2105                         }
2106                         for (i = 0; i < p->interrupt_count; i++) {
2107                                 if (!p->interrupts[i]) {
2108                                         printk(KERN_WARNING DRV_PFX
2109                                                         "Invalid IRQ %d\n",
2110                                                         p->interrupts[i]);
2111                                         continue;
2112                                 }
2113                                 interrupt = kzalloc(sizeof(*interrupt),
2114                                                 GFP_KERNEL);
2115                                 if (!interrupt)
2116                                         return AE_ERROR;
2117
2118                                 list_add(&interrupt->list, &dev->interrupts);
2119                                 interrupt->irq.triggering = p->triggering;
2120                                 interrupt->irq.polarity = p->polarity;
2121                                 interrupt->irq.sharable = p->sharable;
2122                                 interrupt->irq.interrupt_count = 1;
2123                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2124                         }
2125                         return AE_OK;
2126                 }
2127         case ACPI_RESOURCE_TYPE_IO:
2128                 {
2129                         struct acpi_resource_io *io = &resource->data.io;
2130                         struct sony_pic_ioport *ioport =
2131                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2132                         if (!io) {
2133                                 dprintk("Blank IO resource\n");
2134                                 return AE_OK;
2135                         }
2136
2137                         if (!ioport->io1.minimum) {
2138                                 memcpy(&ioport->io1, io, sizeof(*io));
2139                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2140                                                 ioport->io1.address_length);
2141                         }
2142                         else if (!ioport->io2.minimum) {
2143                                 memcpy(&ioport->io2, io, sizeof(*io));
2144                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2145                                                 ioport->io2.address_length);
2146                         }
2147                         else {
2148                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2149                                 return AE_ERROR;
2150                         }
2151                         return AE_OK;
2152                 }
2153         default:
2154                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2155                                 resource->type);
2156
2157         case ACPI_RESOURCE_TYPE_END_TAG:
2158                 return AE_OK;
2159         }
2160         return AE_CTRL_TERMINATE;
2161 }
2162
2163 static int sony_pic_possible_resources(struct acpi_device *device)
2164 {
2165         int result = 0;
2166         acpi_status status = AE_OK;
2167
2168         if (!device)
2169                 return -EINVAL;
2170
2171         /* get device status */
2172         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2173         dprintk("Evaluating _STA\n");
2174         result = acpi_bus_get_status(device);
2175         if (result) {
2176                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2177                 goto end;
2178         }
2179
2180         if (!device->status.enabled)
2181                 dprintk("Device disabled\n");
2182         else
2183                 dprintk("Device enabled\n");
2184
2185         /*
2186          * Query and parse 'method'
2187          */
2188         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2189         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2190                         sony_pic_read_possible_resource, &spic_dev);
2191         if (ACPI_FAILURE(status)) {
2192                 printk(KERN_WARNING DRV_PFX
2193                                 "Failure evaluating %s\n",
2194                                 METHOD_NAME__PRS);
2195                 result = -ENODEV;
2196         }
2197 end:
2198         return result;
2199 }
2200
2201 /*
2202  *  Disable the spic device by calling its _DIS method
2203  */
2204 static int sony_pic_disable(struct acpi_device *device)
2205 {
2206         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2207                         "_DIS", NULL, NULL)))
2208                 return -ENXIO;
2209
2210         dprintk("Device disabled\n");
2211         return 0;
2212 }
2213
2214
2215 /*
2216  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2217  *
2218  *  Call _SRS to set current resources
2219  */
2220 static int sony_pic_enable(struct acpi_device *device,
2221                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2222 {
2223         acpi_status status;
2224         int result = 0;
2225         /* Type 1 resource layout is:
2226          *    IO
2227          *    IO
2228          *    IRQNoFlags
2229          *    End
2230          *
2231          * Type 2 and 3 resource layout is:
2232          *    IO
2233          *    IRQNoFlags
2234          *    End
2235          */
2236         struct {
2237                 struct acpi_resource res1;
2238                 struct acpi_resource res2;
2239                 struct acpi_resource res3;
2240                 struct acpi_resource res4;
2241         } *resource;
2242         struct acpi_buffer buffer = { 0, NULL };
2243
2244         if (!ioport || !irq)
2245                 return -EINVAL;
2246
2247         /* init acpi_buffer */
2248         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2249         if (!resource)
2250                 return -ENOMEM;
2251
2252         buffer.length = sizeof(*resource) + 1;
2253         buffer.pointer = resource;
2254
2255         /* setup Type 1 resources */
2256         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2257
2258                 /* setup io resources */
2259                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2260                 resource->res1.length = sizeof(struct acpi_resource);
2261                 memcpy(&resource->res1.data.io, &ioport->io1,
2262                                 sizeof(struct acpi_resource_io));
2263
2264                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2265                 resource->res2.length = sizeof(struct acpi_resource);
2266                 memcpy(&resource->res2.data.io, &ioport->io2,
2267                                 sizeof(struct acpi_resource_io));
2268
2269                 /* setup irq resource */
2270                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2271                 resource->res3.length = sizeof(struct acpi_resource);
2272                 memcpy(&resource->res3.data.irq, &irq->irq,
2273                                 sizeof(struct acpi_resource_irq));
2274                 /* we requested a shared irq */
2275                 resource->res3.data.irq.sharable = ACPI_SHARED;
2276
2277                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2278
2279         }
2280         /* setup Type 2/3 resources */
2281         else {
2282                 /* setup io resource */
2283                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2284                 resource->res1.length = sizeof(struct acpi_resource);
2285                 memcpy(&resource->res1.data.io, &ioport->io1,
2286                                 sizeof(struct acpi_resource_io));
2287
2288                 /* setup irq resource */
2289                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2290                 resource->res2.length = sizeof(struct acpi_resource);
2291                 memcpy(&resource->res2.data.irq, &irq->irq,
2292                                 sizeof(struct acpi_resource_irq));
2293                 /* we requested a shared irq */
2294                 resource->res2.data.irq.sharable = ACPI_SHARED;
2295
2296                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2297         }
2298
2299         /* Attempt to set the resource */
2300         dprintk("Evaluating _SRS\n");
2301         status = acpi_set_current_resources(device->handle, &buffer);
2302
2303         /* check for total failure */
2304         if (ACPI_FAILURE(status)) {
2305                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2306                 result = -ENODEV;
2307                 goto end;
2308         }
2309
2310         /* Necessary device initializations calls (from sonypi) */
2311         sony_pic_call1(0x82);
2312         sony_pic_call2(0x81, 0xff);
2313         sony_pic_call1(compat ? 0x92 : 0x82);
2314
2315 end:
2316         kfree(resource);
2317         return result;
2318 }
2319
2320 /*****************
2321  *
2322  * ISR: some event is available
2323  *
2324  *****************/
2325 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2326 {
2327         int i, j;
2328         u8 ev = 0;
2329         u8 data_mask = 0;
2330         u8 device_event = 0;
2331
2332         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2333
2334         ev = inb_p(dev->cur_ioport->io1.minimum);
2335         if (dev->cur_ioport->io2.minimum)
2336                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2337         else
2338                 data_mask = inb_p(dev->cur_ioport->io1.minimum + dev->evport_offset);
2339
2340         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2341                         ev, data_mask, dev->cur_ioport->io1.minimum, dev->evport_offset);
2342
2343         if (ev == 0x00 || ev == 0xff)
2344                 return IRQ_HANDLED;
2345
2346         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2347
2348                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2349                         continue;
2350
2351                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2352                     sony_pic_eventtypes[i].data)
2353                         continue;
2354
2355                 if (!(mask & sony_pic_eventtypes[i].mask))
2356                         continue;
2357
2358                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2359                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2360                                 device_event =
2361                                         sony_pic_eventtypes[i].events[j].event;
2362                                 goto found;
2363                         }
2364                 }
2365         }
2366         return IRQ_HANDLED;
2367
2368 found:
2369         sony_laptop_report_input_event(device_event);
2370         acpi_bus_generate_proc_event(spic_dev.acpi_dev, 1, device_event);
2371         sonypi_compat_report_event(device_event);
2372
2373         return IRQ_HANDLED;
2374 }
2375
2376 /*****************
2377  *
2378  *  ACPI driver
2379  *
2380  *****************/
2381 static int sony_pic_remove(struct acpi_device *device, int type)
2382 {
2383         struct sony_pic_ioport *io, *tmp_io;
2384         struct sony_pic_irq *irq, *tmp_irq;
2385
2386         if (sony_pic_disable(device)) {
2387                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2388                 return -ENXIO;
2389         }
2390
2391         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2392         release_region(spic_dev.cur_ioport->io1.minimum,
2393                         spic_dev.cur_ioport->io1.address_length);
2394         if (spic_dev.cur_ioport->io2.minimum)
2395                 release_region(spic_dev.cur_ioport->io2.minimum,
2396                                 spic_dev.cur_ioport->io2.address_length);
2397
2398         sonypi_compat_exit();
2399
2400         sony_laptop_remove_input();
2401
2402         /* pf attrs */
2403         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2404         sony_pf_remove();
2405
2406         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2407                 list_del(&io->list);
2408                 kfree(io);
2409         }
2410         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2411                 list_del(&irq->list);
2412                 kfree(irq);
2413         }
2414         spic_dev.cur_ioport = NULL;
2415         spic_dev.cur_irq = NULL;
2416
2417         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2418         return 0;
2419 }
2420
2421 static int sony_pic_add(struct acpi_device *device)
2422 {
2423         int result;
2424         struct sony_pic_ioport *io, *tmp_io;
2425         struct sony_pic_irq *irq, *tmp_irq;
2426
2427         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2428                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2429
2430         spic_dev.acpi_dev = device;
2431         strcpy(acpi_device_class(device), "sony/hotkey");
2432         spic_dev.model = sony_pic_detect_device_type();
2433         mutex_init(&spic_dev.lock);
2434
2435         /* model specific characteristics */
2436         switch(spic_dev.model) {
2437                 case SONYPI_DEVICE_TYPE1:
2438                         spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
2439                         break;
2440                 case SONYPI_DEVICE_TYPE3:
2441                         spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
2442                         break;
2443                 case SONYPI_DEVICE_TYPE2:
2444                 default:
2445                         spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
2446                         break;
2447         }
2448
2449         /* read _PRS resources */
2450         result = sony_pic_possible_resources(device);
2451         if (result) {
2452                 printk(KERN_ERR DRV_PFX
2453                                 "Unabe to read possible resources.\n");
2454                 goto err_free_resources;
2455         }
2456
2457         /* setup input devices and helper fifo */
2458         result = sony_laptop_setup_input(device);
2459         if (result) {
2460                 printk(KERN_ERR DRV_PFX
2461                                 "Unabe to create input devices.\n");
2462                 goto err_free_resources;
2463         }
2464
2465         if (sonypi_compat_init())
2466                 goto err_remove_input;
2467
2468         /* request io port */
2469         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2470                 if (request_region(io->io1.minimum, io->io1.address_length,
2471                                         "Sony Programable I/O Device")) {
2472                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2473                                         io->io1.minimum, io->io1.maximum,
2474                                         io->io1.address_length);
2475                         /* Type 1 have 2 ioports */
2476                         if (io->io2.minimum) {
2477                                 if (request_region(io->io2.minimum,
2478                                                 io->io2.address_length,
2479                                                 "Sony Programable I/O Device")) {
2480                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2481                                                         io->io2.minimum, io->io2.maximum,
2482                                                         io->io2.address_length);
2483                                         spic_dev.cur_ioport = io;
2484                                         break;
2485                                 }
2486                                 else {
2487                                         dprintk("Unable to get I/O port2: "
2488                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2489                                                         io->io2.minimum, io->io2.maximum,
2490                                                         io->io2.address_length);
2491                                         release_region(io->io1.minimum,
2492                                                         io->io1.address_length);
2493                                 }
2494                         }
2495                         else {
2496                                 spic_dev.cur_ioport = io;
2497                                 break;
2498                         }
2499                 }
2500         }
2501         if (!spic_dev.cur_ioport) {
2502                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2503                 result = -ENODEV;
2504                 goto err_remove_compat;
2505         }
2506
2507         /* request IRQ */
2508         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2509                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2510                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2511                         dprintk("IRQ: %d - triggering: %d - "
2512                                         "polarity: %d - shr: %d\n",
2513                                         irq->irq.interrupts[0],
2514                                         irq->irq.triggering,
2515                                         irq->irq.polarity,
2516                                         irq->irq.sharable);
2517                         spic_dev.cur_irq = irq;
2518                         break;
2519                 }
2520         }
2521         if (!spic_dev.cur_irq) {
2522                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2523                 result = -ENODEV;
2524                 goto err_release_region;
2525         }
2526
2527         /* set resource status _SRS */
2528         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2529         if (result) {
2530                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2531                 goto err_free_irq;
2532         }
2533
2534         spic_dev.bluetooth_power = -1;
2535         /* create device attributes */
2536         result = sony_pf_add();
2537         if (result)
2538                 goto err_disable_device;
2539
2540         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2541         if (result)
2542                 goto err_remove_pf;
2543
2544         return 0;
2545
2546 err_remove_pf:
2547         sony_pf_remove();
2548
2549 err_disable_device:
2550         sony_pic_disable(device);
2551
2552 err_free_irq:
2553         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2554
2555 err_release_region:
2556         release_region(spic_dev.cur_ioport->io1.minimum,
2557                         spic_dev.cur_ioport->io1.address_length);
2558         if (spic_dev.cur_ioport->io2.minimum)
2559                 release_region(spic_dev.cur_ioport->io2.minimum,
2560                                 spic_dev.cur_ioport->io2.address_length);
2561
2562 err_remove_compat:
2563         sonypi_compat_exit();
2564
2565 err_remove_input:
2566         sony_laptop_remove_input();
2567
2568 err_free_resources:
2569         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2570                 list_del(&io->list);
2571                 kfree(io);
2572         }
2573         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2574                 list_del(&irq->list);
2575                 kfree(irq);
2576         }
2577         spic_dev.cur_ioport = NULL;
2578         spic_dev.cur_irq = NULL;
2579
2580         return result;
2581 }
2582
2583 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2584 {
2585         if (sony_pic_disable(device))
2586                 return -ENXIO;
2587         return 0;
2588 }
2589
2590 static int sony_pic_resume(struct acpi_device *device)
2591 {
2592         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2593         return 0;
2594 }
2595
2596 static const struct acpi_device_id sony_pic_device_ids[] = {
2597         {SONY_PIC_HID, 0},
2598         {"", 0},
2599 };
2600
2601 static struct acpi_driver sony_pic_driver = {
2602         .name = SONY_PIC_DRIVER_NAME,
2603         .class = SONY_PIC_CLASS,
2604         .ids = sony_pic_device_ids,
2605         .owner = THIS_MODULE,
2606         .ops = {
2607                 .add = sony_pic_add,
2608                 .remove = sony_pic_remove,
2609                 .suspend = sony_pic_suspend,
2610                 .resume = sony_pic_resume,
2611                 },
2612 };
2613
2614 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2615         {
2616                 .ident = "Sony Vaio",
2617                 .matches = {
2618                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2619                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2620                 },
2621         },
2622         {
2623                 .ident = "Sony Vaio",
2624                 .matches = {
2625                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2626                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2627                 },
2628         },
2629         { }
2630 };
2631
2632 static int __init sony_laptop_init(void)
2633 {
2634         int result;
2635
2636         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2637                 result = acpi_bus_register_driver(&sony_pic_driver);
2638                 if (result) {
2639                         printk(KERN_ERR DRV_PFX
2640                                         "Unable to register SPIC driver.");
2641                         goto out;
2642                 }
2643         }
2644
2645         result = acpi_bus_register_driver(&sony_nc_driver);
2646         if (result) {
2647                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2648                 goto out_unregister_pic;
2649         }
2650
2651         return 0;
2652
2653 out_unregister_pic:
2654         if (!no_spic)
2655                 acpi_bus_unregister_driver(&sony_pic_driver);
2656 out:
2657         return result;
2658 }
2659
2660 static void __exit sony_laptop_exit(void)
2661 {
2662         acpi_bus_unregister_driver(&sony_nc_driver);
2663         if (!no_spic)
2664                 acpi_bus_unregister_driver(&sony_pic_driver);
2665 }
2666
2667 module_init(sony_laptop_init);
2668 module_exit(sony_laptop_exit);