drivers/misc/sony-laptop.c

   1 /*
   2  * ACPI Sony Notebook Control Driver (SNC and SPIC)
   3  *
   4  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   5  * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
   6  *
   7  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   8  * which are copyrighted by their respective authors.
   9  *
  10  * The SNY6001 driver part is based on the sonypi driver which includes
  11  * material from:
  12  *
  13  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  14  *
  15  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  16  *
  17  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
  18  *
  19  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  20  *
  21  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  22  *
  23  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  24  *
  25  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  26  *
  27  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  28  *
  29  * This program is free software; you can redistribute it and/or modify
  30  * it under the terms of the GNU General Public License as published by
  31  * the Free Software Foundation; either version 2 of the License, or
  32  * (at your option) any later version.
  33  *
  34  * This program is distributed in the hope that it will be useful,
  35  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  36  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  37  * GNU General Public License for more details.
  38  *
  39  * You should have received a copy of the GNU General Public License
  40  * along with this program; if not, write to the Free Software
  41  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  42  *
  43  */
  44
  45 #include <linux/kernel.h>
  46 #include <linux/module.h>
  47 #include <linux/moduleparam.h>
  48 #include <linux/init.h>
  49 #include <linux/smp_lock.h>
  50 #include <linux/types.h>
  51 #include <linux/backlight.h>
  52 #include <linux/platform_device.h>
  53 #include <linux/err.h>
  54 #include <linux/dmi.h>
  55 #include <linux/pci.h>
  56 #include <linux/interrupt.h>
  57 #include <linux/delay.h>
  58 #include <linux/input.h>
  59 #include <linux/kfifo.h>
  60 #include <linux/workqueue.h>
  61 #include <linux/acpi.h>
  62 #include <acpi/acpi_drivers.h>
  63 #include <acpi/acpi_bus.h>
  64 #include <asm/uaccess.h>
  65 #include <linux/sonypi.h>
  66 #include <linux/sony-laptop.h>
  67 #ifdef CONFIG_SONYPI_COMPAT
  68 #include <linux/poll.h>
  69 #include <linux/miscdevice.h>
  70 #endif
  71
  72 #define DRV_PFX                 "sony-laptop: "
  73 #define dprintk(msg...)         do {                    \
  74         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  75 } while (0)
  76
  77 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  78
  79 #define SONY_NC_CLASS           "sony-nc"
  80 #define SONY_NC_HID             "SNY5001"
  81 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  82
  83 #define SONY_PIC_CLASS          "sony-pic"
  84 #define SONY_PIC_HID            "SNY6001"
  85 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  86
  87 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  88 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  89 MODULE_LICENSE("GPL");
  90 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  91
  92 static int debug;
  93 module_param(debug, int, 0);
  94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  95                  "the development of this driver");
  96
  97 static int no_spic;             /* = 0 */
  98 module_param(no_spic, int, 0444);
  99 MODULE_PARM_DESC(no_spic,
 100                  "set this if you don't want to enable the SPIC device");
 101
 102 static int compat;              /* = 0 */
 103 module_param(compat, int, 0444);
 104 MODULE_PARM_DESC(compat,
 105                  "set this if you want to enable backward compatibility mode");
 106
 107 static unsigned long mask = 0xffffffff;
 108 module_param(mask, ulong, 0644);
 109 MODULE_PARM_DESC(mask,
 110                  "set this to the mask of event you want to enable (see doc)");
 111
 112 static int camera;              /* = 0 */
 113 module_param(camera, int, 0444);
 114 MODULE_PARM_DESC(camera,
 115                  "set this to 1 to enable Motion Eye camera controls "
 116                  "(only use it if you have a C1VE or C1VN model)");
 117
 118 #ifdef CONFIG_SONYPI_COMPAT
 119 static int minor = -1;
 120 module_param(minor, int, 0);
 121 MODULE_PARM_DESC(minor,
 122                  "minor number of the misc device for the SPIC compatibility code, "
 123                  "default is -1 (automatic)");
 124 #endif
 125
 126 /*********** Input Devices ***********/
 127
 128 #define SONY_LAPTOP_BUF_SIZE    128
 129 struct sony_laptop_input_s {
 130         atomic_t                users;
 131         struct input_dev        *jog_dev;
 132         struct input_dev        *key_dev;
 133         struct kfifo            *fifo;
 134         spinlock_t              fifo_lock;
 135         struct workqueue_struct *wq;
 136 };
 137 static struct sony_laptop_input_s sony_laptop_input = {
 138         .users = ATOMIC_INIT(0),
 139 };
 140
 141 struct sony_laptop_keypress {
 142         struct input_dev *dev;
 143         int key;
 144 };
 145
 146 /* Correspondance table between sonypi events
 147  * and input layer indexes in the keymap
 148  */
 149 static int sony_laptop_input_index[] = {
 150         -1,     /*  0 no event */
 151         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 152         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 153         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 154         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 155         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 156         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 157          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 158          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 159          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 160          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 161          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 162          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 163          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 164          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 165          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 166          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 167         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 168         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 169         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 170         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 171         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 172         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 173         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 174         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 175         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 176         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 177         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 178         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 179         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 180         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 181         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 182         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 183         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 184         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 185         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 186         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 187         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 188         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 189         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 190         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 191         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 192         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 193         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 194         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 195         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 196         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 197         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 198         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 199         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 200         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 201         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 202         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 203         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 204         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 205         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 206         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 207         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 208         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 209         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 210         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 211         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 212         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 213         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 214 };
 215
 216 static int sony_laptop_input_keycode_map[] = {
 217         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 218         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 219         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 220         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 221         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 222         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 223         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 224         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 225         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 226         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 227         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 228         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 229         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 230         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 231         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 232         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 233         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 234         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 235         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 236         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 237         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 238         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 239         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 240         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 241         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 242         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 243         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 244         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 245         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 246         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 247         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 248         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 249         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 250         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 251         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 252         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 253         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 254         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 255         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 256         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 257         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 258         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 259         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 260         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 261         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 262         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 263         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 264         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 265         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 266         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 267         KEY_ZOOMOUT     /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 268 };
 269
 270 /* release buttons after a short delay if pressed */
 271 static void do_sony_laptop_release_key(struct work_struct *work)
 272 {
 273         struct sony_laptop_keypress kp;
 274
 275         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 276                          sizeof(kp)) == sizeof(kp)) {
 277                 msleep(10);
 278                 input_report_key(kp.dev, kp.key, 0);
 279                 input_sync(kp.dev);
 280         }
 281 }
 282 static DECLARE_WORK(sony_laptop_release_key_work,
 283                 do_sony_laptop_release_key);
 284
 285 /* forward event to the input subsystem */
 286 static void sony_laptop_report_input_event(u8 event)
 287 {
 288         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 289         struct input_dev *key_dev = sony_laptop_input.key_dev;
 290         struct sony_laptop_keypress kp = { NULL };
 291
 292         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 293                 /* Nothing, not all VAIOs generate this event */
 294                 return;
 295         }
 296
 297         /* report events */
 298         switch (event) {
 299         /* jog_dev events */
 300         case SONYPI_EVENT_JOGDIAL_UP:
 301         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 302                 input_report_rel(jog_dev, REL_WHEEL, 1);
 303                 input_sync(jog_dev);
 304                 return;
 305
 306         case SONYPI_EVENT_JOGDIAL_DOWN:
 307         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 308                 input_report_rel(jog_dev, REL_WHEEL, -1);
 309                 input_sync(jog_dev);
 310                 return;
 311
 312         /* key_dev events */
 313         case SONYPI_EVENT_JOGDIAL_PRESSED:
 314                 kp.key = BTN_MIDDLE;
 315                 kp.dev = jog_dev;
 316                 break;
 317
 318         default:
 319                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 320                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 321                         break;
 322                 }
 323                 if (sony_laptop_input_index[event] != -1) {
 324                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 325                         if (kp.key != KEY_UNKNOWN)
 326                                 kp.dev = key_dev;
 327                 }
 328                 break;
 329         }
 330
 331         if (kp.dev) {
 332                 input_report_key(kp.dev, kp.key, 1);
 333                 /* we emit the scancode so we can always remap the key */
 334                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 335                 input_sync(kp.dev);
 336                 kfifo_put(sony_laptop_input.fifo,
 337                           (unsigned char *)&kp, sizeof(kp));
 338
 339                 if (!work_pending(&sony_laptop_release_key_work))
 340                         queue_work(sony_laptop_input.wq,
 341                                         &sony_laptop_release_key_work);
 342         } else
 343                 dprintk("unknown input event %.2x\n", event);
 344 }
 345
 346 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 347 {
 348         struct input_dev *jog_dev;
 349         struct input_dev *key_dev;
 350         int i;
 351         int error;
 352
 353         /* don't run again if already initialized */
 354         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 355                 return 0;
 356
 357         /* kfifo */
 358         spin_lock_init(&sony_laptop_input.fifo_lock);
 359         sony_laptop_input.fifo =
 360                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 361                             &sony_laptop_input.fifo_lock);
 362         if (IS_ERR(sony_laptop_input.fifo)) {
 363                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 364                 error = PTR_ERR(sony_laptop_input.fifo);
 365                 goto err_dec_users;
 366         }
 367
 368         /* init workqueue */
 369         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 370         if (!sony_laptop_input.wq) {
 371                 printk(KERN_ERR DRV_PFX
 372                                 "Unabe to create workqueue.\n");
 373                 error = -ENXIO;
 374                 goto err_free_kfifo;
 375         }
 376
 377         /* input keys */
 378         key_dev = input_allocate_device();
 379         if (!key_dev) {
 380                 error = -ENOMEM;
 381                 goto err_destroy_wq;
 382         }
 383
 384         key_dev->name = "Sony Vaio Keys";
 385         key_dev->id.bustype = BUS_ISA;
 386         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 387         key_dev->dev.parent = &acpi_device->dev;
 388
 389         /* Initialize the Input Drivers: special keys */
 390         set_bit(EV_KEY, key_dev->evbit);
 391         set_bit(EV_MSC, key_dev->evbit);
 392         set_bit(MSC_SCAN, key_dev->mscbit);
 393         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 394         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 395         key_dev->keycode = &sony_laptop_input_keycode_map;
 396         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 397                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 398                         set_bit(sony_laptop_input_keycode_map[i],
 399                                 key_dev->keybit);
 400                 }
 401         }
 402
 403         error = input_register_device(key_dev);
 404         if (error)
 405                 goto err_free_keydev;
 406
 407         sony_laptop_input.key_dev = key_dev;
 408
 409         /* jogdial */
 410         jog_dev = input_allocate_device();
 411         if (!jog_dev) {
 412                 error = -ENOMEM;
 413                 goto err_unregister_keydev;
 414         }
 415
 416         jog_dev->name = "Sony Vaio Jogdial";
 417         jog_dev->id.bustype = BUS_ISA;
 418         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 419         key_dev->dev.parent = &acpi_device->dev;
 420
 421         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 422         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 423         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
 424
 425         error = input_register_device(jog_dev);
 426         if (error)
 427                 goto err_free_jogdev;
 428
 429         sony_laptop_input.jog_dev = jog_dev;
 430
 431         return 0;
 432
 433 err_free_jogdev:
 434         input_free_device(jog_dev);
 435
 436 err_unregister_keydev:
 437         input_unregister_device(key_dev);
 438         /* to avoid kref underflow below at input_free_device */
 439         key_dev = NULL;
 440
 441 err_free_keydev:
 442         input_free_device(key_dev);
 443
 444 err_destroy_wq:
 445         destroy_workqueue(sony_laptop_input.wq);
 446
 447 err_free_kfifo:
 448         kfifo_free(sony_laptop_input.fifo);
 449
 450 err_dec_users:
 451         atomic_dec(&sony_laptop_input.users);
 452         return error;
 453 }
 454
 455 static void sony_laptop_remove_input(void)
 456 {
 457         /* cleanup only after the last user has gone */
 458         if (!atomic_dec_and_test(&sony_laptop_input.users))
 459                 return;
 460
 461         /* flush workqueue first */
 462         flush_workqueue(sony_laptop_input.wq);
 463
 464         /* destroy input devs */
 465         input_unregister_device(sony_laptop_input.key_dev);
 466         sony_laptop_input.key_dev = NULL;
 467
 468         if (sony_laptop_input.jog_dev) {
 469                 input_unregister_device(sony_laptop_input.jog_dev);
 470                 sony_laptop_input.jog_dev = NULL;
 471         }
 472
 473         destroy_workqueue(sony_laptop_input.wq);
 474         kfifo_free(sony_laptop_input.fifo);
 475 }
 476
 477 /*********** Platform Device ***********/
 478
 479 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 480 static struct platform_driver sony_pf_driver = {
 481         .driver = {
 482                    .name = "sony-laptop",
 483                    .owner = THIS_MODULE,
 484                    }
 485 };
 486 static struct platform_device *sony_pf_device;
 487
 488 static int sony_pf_add(void)
 489 {
 490         int ret = 0;
 491
 492         /* don't run again if already initialized */
 493         if (atomic_add_return(1, &sony_pf_users) > 1)
 494                 return 0;
 495
 496         ret = platform_driver_register(&sony_pf_driver);
 497         if (ret)
 498                 goto out;
 499
 500         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 501         if (!sony_pf_device) {
 502                 ret = -ENOMEM;
 503                 goto out_platform_registered;
 504         }
 505
 506         ret = platform_device_add(sony_pf_device);
 507         if (ret)
 508                 goto out_platform_alloced;
 509
 510         return 0;
 511
 512       out_platform_alloced:
 513         platform_device_put(sony_pf_device);
 514         sony_pf_device = NULL;
 515       out_platform_registered:
 516         platform_driver_unregister(&sony_pf_driver);
 517       out:
 518         atomic_dec(&sony_pf_users);
 519         return ret;
 520 }
 521
 522 static void sony_pf_remove(void)
 523 {
 524         /* deregister only after the last user has gone */
 525         if (!atomic_dec_and_test(&sony_pf_users))
 526                 return;
 527
 528         platform_device_del(sony_pf_device);
 529         platform_device_put(sony_pf_device);
 530         platform_driver_unregister(&sony_pf_driver);
 531 }
 532
 533 /*********** SNC (SNY5001) Device ***********/
 534
 535 /* the device uses 1-based values, while the backlight subsystem uses
 536    0-based values */
 537 #define SONY_MAX_BRIGHTNESS     8
 538
 539 #define SNC_VALIDATE_IN         0
 540 #define SNC_VALIDATE_OUT        1
 541
 542 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 543                               char *);
 544 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 545                                const char *, size_t);
 546 static int boolean_validate(const int, const int);
 547 static int brightness_default_validate(const int, const int);
 548
 549 struct sony_nc_value {
 550         char *name;             /* name of the entry */
 551         char **acpiget;         /* names of the ACPI get function */
 552         char **acpiset;         /* names of the ACPI set function */
 553         int (*validate)(const int, const int);  /* input/output validation */
 554         int value;              /* current setting */
 555         int valid;              /* Has ever been set */
 556         int debug;              /* active only in debug mode ? */
 557         struct device_attribute devattr;        /* sysfs atribute */
 558 };
 559
 560 #define SNC_HANDLE_NAMES(_name, _values...) \
 561         static char *snc_##_name[] = { _values, NULL }
 562
 563 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 564         { \
 565                 .name           = __stringify(_name), \
 566                 .acpiget        = _getters, \
 567                 .acpiset        = _setters, \
 568                 .validate       = _validate, \
 569                 .debug          = _debug, \
 570                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 571         }
 572
 573 #define SNC_HANDLE_NULL { .name = NULL }
 574
 575 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 576
 577 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 578 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 579
 580 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 581 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 582
 583 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 584 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 585
 586 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 587 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 588
 589 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 590
 591 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 592 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 593
 594 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 595 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 596
 597 SNC_HANDLE_NAMES(PID_get, "GPID");
 598
 599 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 600 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 601
 602 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 603 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 604
 605 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 606 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 607
 608 static struct sony_nc_value sony_nc_values[] = {
 609         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 610                         snc_brightness_def_set, brightness_default_validate, 0),
 611         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 612         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 613         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 614                         boolean_validate, 0),
 615         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 616                         boolean_validate, 1),
 617         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 618                         boolean_validate, 0),
 619         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 620                         boolean_validate, 0),
 621         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 622                         boolean_validate, 0),
 623         /* unknown methods */
 624         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 625         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 626         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 627         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 628         SNC_HANDLE_NULL
 629 };
 630
 631 static acpi_handle sony_nc_acpi_handle;
 632 static struct acpi_device *sony_nc_acpi_device = NULL;
 633
 634 /*
 635  * acpi_evaluate_object wrappers
 636  */
 637 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 638 {
 639         struct acpi_buffer output;
 640         union acpi_object out_obj;
 641         acpi_status status;
 642
 643         output.length = sizeof(out_obj);
 644         output.pointer = &out_obj;
 645
 646         status = acpi_evaluate_object(handle, name, NULL, &output);
 647         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 648                 *result = out_obj.integer.value;
 649                 return 0;
 650         }
 651
 652         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 653
 654         return -1;
 655 }
 656
 657 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 658                             int *result)
 659 {
 660         struct acpi_object_list params;
 661         union acpi_object in_obj;
 662         struct acpi_buffer output;
 663         union acpi_object out_obj;
 664         acpi_status status;
 665
 666         params.count = 1;
 667         params.pointer = &in_obj;
 668         in_obj.type = ACPI_TYPE_INTEGER;
 669         in_obj.integer.value = value;
 670
 671         output.length = sizeof(out_obj);
 672         output.pointer = &out_obj;
 673
 674         status = acpi_evaluate_object(handle, name, &params, &output);
 675         if (status == AE_OK) {
 676                 if (result != NULL) {
 677                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 678                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 679                                        "return type\n");
 680                                 return -1;
 681                         }
 682                         *result = out_obj.integer.value;
 683                 }
 684                 return 0;
 685         }
 686
 687         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 688
 689         return -1;
 690 }
 691
 692 /*
 693  * sony_nc_values input/output validate functions
 694  */
 695
 696 /* brightness_default_validate:
 697  *
 698  * manipulate input output values to keep consistency with the
 699  * backlight framework for which brightness values are 0-based.
 700  */
 701 static int brightness_default_validate(const int direction, const int value)
 702 {
 703         switch (direction) {
 704                 case SNC_VALIDATE_OUT:
 705                         return value - 1;
 706                 case SNC_VALIDATE_IN:
 707                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 708                                 return value + 1;
 709         }
 710         return -EINVAL;
 711 }
 712
 713 /* boolean_validate:
 714  *
 715  * on input validate boolean values 0/1, on output just pass the
 716  * received value.
 717  */
 718 static int boolean_validate(const int direction, const int value)
 719 {
 720         if (direction == SNC_VALIDATE_IN) {
 721                 if (value != 0 && value != 1)
 722                         return -EINVAL;
 723         }
 724         return value;
 725 }
 726
 727 /*
 728  * Sysfs show/store common to all sony_nc_values
 729  */
 730 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 731                               char *buffer)
 732 {
 733         int value;
 734         struct sony_nc_value *item =
 735             container_of(attr, struct sony_nc_value, devattr);
 736
 737         if (!*item->acpiget)
 738                 return -EIO;
 739
 740         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 741                 return -EIO;
 742
 743         if (item->validate)
 744                 value = item->validate(SNC_VALIDATE_OUT, value);
 745
 746         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 747 }
 748
 749 static ssize_t sony_nc_sysfs_store(struct device *dev,
 750                                struct device_attribute *attr,
 751                                const char *buffer, size_t count)
 752 {
 753         int value;
 754         struct sony_nc_value *item =
 755             container_of(attr, struct sony_nc_value, devattr);
 756
 757         if (!item->acpiset)
 758                 return -EIO;
 759
 760         if (count > 31)
 761                 return -EINVAL;
 762
 763         value = simple_strtoul(buffer, NULL, 10);
 764
 765         if (item->validate)
 766                 value = item->validate(SNC_VALIDATE_IN, value);
 767
 768         if (value < 0)
 769                 return value;
 770
 771         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 772                 return -EIO;
 773         item->value = value;
 774         item->valid = 1;
 775         return count;
 776 }
 777
 778
 779 /*
 780  * Backlight device
 781  */
 782 static int sony_backlight_update_status(struct backlight_device *bd)
 783 {
 784         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 785                                 bd->props.brightness + 1, NULL);
 786 }
 787
 788 static int sony_backlight_get_brightness(struct backlight_device *bd)
 789 {
 790         int value;
 791
 792         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 793                 return 0;
 794         /* brightness levels are 1-based, while backlight ones are 0-based */
 795         return value - 1;
 796 }
 797
 798 static struct backlight_device *sony_backlight_device;
 799 static struct backlight_ops sony_backlight_ops = {
 800         .update_status = sony_backlight_update_status,
 801         .get_brightness = sony_backlight_get_brightness,
 802 };
 803
 804 /*
 805  * New SNC-only Vaios event mapping to driver known keys
 806  */
 807 struct sony_nc_event {
 808         u8      data;
 809         u8      event;
 810 };
 811
 812 static struct sony_nc_event *sony_nc_events;
 813
 814 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 815  * for Fn keys
 816  */
 817 static int sony_nc_C_enable(const struct dmi_system_id *id)
 818 {
 819         int result = 0;
 820
 821         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
 822
 823         sony_nc_events = id->driver_data;
 824
 825         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
 826                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
 827                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
 828                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
 829                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
 830                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
 831                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
 832                                 "functionalities may be missing\n");
 833                 return 1;
 834         }
 835         return 0;
 836 }
 837
 838 static struct sony_nc_event sony_C_events[] = {
 839         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 840         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 841         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 842         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 843         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 844         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 845         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 846         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 847         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 848         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 849         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 850         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 851         { 0, 0 },
 852 };
 853
 854 /* SNC-only model map */
 855 static const struct dmi_system_id sony_nc_ids[] = {
 856                 {
 857                         .ident = "Sony Vaio FE Series",
 858                         .callback = sony_nc_C_enable,
 859                         .driver_data = sony_C_events,
 860                         .matches = {
 861                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 862                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
 863                         },
 864                 },
 865                 {
 866                         .ident = "Sony Vaio FZ Series",
 867                         .callback = sony_nc_C_enable,
 868                         .driver_data = sony_C_events,
 869                         .matches = {
 870                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 871                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
 872                         },
 873                 },
 874                 {
 875                         .ident = "Sony Vaio C Series",
 876                         .callback = sony_nc_C_enable,
 877                         .driver_data = sony_C_events,
 878                         .matches = {
 879                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 880                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 881                         },
 882                 },
 883                 {
 884                         .ident = "Sony Vaio N Series",
 885                         .callback = sony_nc_C_enable,
 886                         .driver_data = sony_C_events,
 887                         .matches = {
 888                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 889                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
 890                         },
 891                 },
 892                 { }
 893 };
 894
 895 /*
 896  * ACPI callbacks
 897  */
 898 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 899 {
 900         struct sony_nc_event *evmap;
 901         u32 ev = event;
 902         int result;
 903
 904         if (ev == 0x92) {
 905                 /* read the key pressed from EC.GECR
 906                  * A call to SN07 with 0x0202 will do it as well respecting
 907                  * the current protocol on different OSes
 908                  *
 909                  * Note: the path for GECR may be
 910                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 911                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 912                  *
 913                  * TODO: we may want to do the same for the older GHKE -need
 914                  *       dmi list- so this snippet may become one more callback.
 915                  */
 916                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
 917                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 918                 else
 919                         ev = result & 0xFF;
 920         }
 921
 922         if (sony_nc_events)
 923                 for (evmap = sony_nc_events; evmap->event; evmap++) {
 924                         if (evmap->data == ev) {
 925                                 ev = evmap->event;
 926                                 break;
 927                         }
 928                 }
 929
 930         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 931         sony_laptop_report_input_event(ev);
 932         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 933 }
 934
 935 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 936                                       void *context, void **return_value)
 937 {
 938         struct acpi_namespace_node *node;
 939         union acpi_operand_object *operand;
 940
 941         node = (struct acpi_namespace_node *)handle;
 942         operand = (union acpi_operand_object *)node->object;
 943
 944         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 945                (u32) operand->method.param_count);
 946
 947         return AE_OK;
 948 }
 949
 950 /*
 951  * ACPI device
 952  */
 953 static int sony_nc_resume(struct acpi_device *device)
 954 {
 955         struct sony_nc_value *item;
 956
 957         for (item = sony_nc_values; item->name; item++) {
 958                 int ret;
 959
 960                 if (!item->valid)
 961                         continue;
 962                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 963                                        item->value, NULL);
 964                 if (ret < 0) {
 965                         printk("%s: %d\n", __func__, ret);
 966                         break;
 967                 }
 968         }
 969
 970         /* set the last requested brightness level */
 971         if (sony_backlight_device &&
 972                         !sony_backlight_update_status(sony_backlight_device))
 973                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
 974
 975         /* re-initialize models with specific requirements */
 976         dmi_check_system(sony_nc_ids);
 977
 978         return 0;
 979 }
 980
 981 static int sony_nc_add(struct acpi_device *device)
 982 {
 983         acpi_status status;
 984         int result = 0;
 985         acpi_handle handle;
 986         struct sony_nc_value *item;
 987
 988         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 989                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 990
 991         sony_nc_acpi_device = device;
 992         strcpy(acpi_device_class(device), "sony/hotkey");
 993
 994         sony_nc_acpi_handle = device->handle;
 995
 996         /* read device status */
 997         result = acpi_bus_get_status(device);
 998         /* bail IFF the above call was successful and the device is not present */
 999         if (!result && !device->status.present) {
1000                 dprintk("Device not present\n");
1001                 result = -ENODEV;
1002                 goto outwalk;
1003         }
1004
1005         if (debug) {
1006                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1007                                              1, sony_walk_callback, NULL, NULL);
1008                 if (ACPI_FAILURE(status)) {
1009                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1010                         result = -ENODEV;
1011                         goto outwalk;
1012                 }
1013         }
1014
1015         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1016          * should be respected as we already checked for the device presence above */
1017         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1018                 dprintk("Invoking _INI\n");
1019                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1020                                                 NULL, NULL)))
1021                         dprintk("_INI Method failed\n");
1022         }
1023
1024         /* setup input devices and helper fifo */
1025         result = sony_laptop_setup_input(device);
1026         if (result) {
1027                 printk(KERN_ERR DRV_PFX
1028                                 "Unabe to create input devices.\n");
1029                 goto outwalk;
1030         }
1031
1032         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1033                                              ACPI_DEVICE_NOTIFY,
1034                                              sony_acpi_notify, NULL);
1035         if (ACPI_FAILURE(status)) {
1036                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1037                 result = -ENODEV;
1038                 goto outinput;
1039         }
1040
1041         if (acpi_video_backlight_support()) {
1042                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1043                        "controlled by ACPI video driver\n");
1044         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1045                                                 &handle))) {
1046                 sony_backlight_device = backlight_device_register("sony", NULL,
1047                                                                   NULL,
1048                                                                   &sony_backlight_ops);
1049
1050                 if (IS_ERR(sony_backlight_device)) {
1051                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1052                         sony_backlight_device = NULL;
1053                 } else {
1054                         sony_backlight_device->props.brightness =
1055                             sony_backlight_get_brightness
1056                             (sony_backlight_device);
1057                         sony_backlight_device->props.max_brightness =
1058                             SONY_MAX_BRIGHTNESS - 1;
1059                 }
1060
1061         }
1062
1063         /* initialize models with specific requirements */
1064         dmi_check_system(sony_nc_ids);
1065
1066         result = sony_pf_add();
1067         if (result)
1068                 goto outbacklight;
1069
1070         /* create sony_pf sysfs attributes related to the SNC device */
1071         for (item = sony_nc_values; item->name; ++item) {
1072
1073                 if (!debug && item->debug)
1074                         continue;
1075
1076                 /* find the available acpiget as described in the DSDT */
1077                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1078                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1079                                                          *item->acpiget,
1080                                                          &handle))) {
1081                                 dprintk("Found %s getter: %s\n",
1082                                                 item->name, *item->acpiget);
1083                                 item->devattr.attr.mode |= S_IRUGO;
1084                                 break;
1085                         }
1086                 }
1087
1088                 /* find the available acpiset as described in the DSDT */
1089                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1090                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1091                                                          *item->acpiset,
1092                                                          &handle))) {
1093                                 dprintk("Found %s setter: %s\n",
1094                                                 item->name, *item->acpiset);
1095                                 item->devattr.attr.mode |= S_IWUSR;
1096                                 break;
1097                         }
1098                 }
1099
1100                 if (item->devattr.attr.mode != 0) {
1101                         result =
1102                             device_create_file(&sony_pf_device->dev,
1103                                                &item->devattr);
1104                         if (result)
1105                                 goto out_sysfs;
1106                 }
1107         }
1108
1109         return 0;
1110
1111       out_sysfs:
1112         for (item = sony_nc_values; item->name; ++item) {
1113                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1114         }
1115         sony_pf_remove();
1116
1117       outbacklight:
1118         if (sony_backlight_device)
1119                 backlight_device_unregister(sony_backlight_device);
1120
1121         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1122                                             ACPI_DEVICE_NOTIFY,
1123                                             sony_acpi_notify);
1124         if (ACPI_FAILURE(status))
1125                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1126
1127       outinput:
1128         sony_laptop_remove_input();
1129
1130       outwalk:
1131         return result;
1132 }
1133
1134 static int sony_nc_remove(struct acpi_device *device, int type)
1135 {
1136         acpi_status status;
1137         struct sony_nc_value *item;
1138
1139         if (sony_backlight_device)
1140                 backlight_device_unregister(sony_backlight_device);
1141
1142         sony_nc_acpi_device = NULL;
1143
1144         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1145                                             ACPI_DEVICE_NOTIFY,
1146                                             sony_acpi_notify);
1147         if (ACPI_FAILURE(status))
1148                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1149
1150         for (item = sony_nc_values; item->name; ++item) {
1151                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1152         }
1153
1154         sony_pf_remove();
1155         sony_laptop_remove_input();
1156         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1157
1158         return 0;
1159 }
1160
1161 static const struct acpi_device_id sony_device_ids[] = {
1162         {SONY_NC_HID, 0},
1163         {SONY_PIC_HID, 0},
1164         {"", 0},
1165 };
1166 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1167
1168 static const struct acpi_device_id sony_nc_device_ids[] = {
1169         {SONY_NC_HID, 0},
1170         {"", 0},
1171 };
1172
1173 static struct acpi_driver sony_nc_driver = {
1174         .name = SONY_NC_DRIVER_NAME,
1175         .class = SONY_NC_CLASS,
1176         .ids = sony_nc_device_ids,
1177         .owner = THIS_MODULE,
1178         .ops = {
1179                 .add = sony_nc_add,
1180                 .remove = sony_nc_remove,
1181                 .resume = sony_nc_resume,
1182                 },
1183 };
1184
1185 /*********** SPIC (SNY6001) Device ***********/
1186
1187 #define SONYPI_DEVICE_TYPE1     0x00000001
1188 #define SONYPI_DEVICE_TYPE2     0x00000002
1189 #define SONYPI_DEVICE_TYPE3     0x00000004
1190 #define SONYPI_DEVICE_TYPE4     0x00000008
1191
1192 #define SONYPI_TYPE1_OFFSET     0x04
1193 #define SONYPI_TYPE2_OFFSET     0x12
1194 #define SONYPI_TYPE3_OFFSET     0x12
1195 #define SONYPI_TYPE4_OFFSET     0x12
1196
1197 struct sony_pic_ioport {
1198         struct acpi_resource_io io1;
1199         struct acpi_resource_io io2;
1200         struct list_head        list;
1201 };
1202
1203 struct sony_pic_irq {
1204         struct acpi_resource_irq        irq;
1205         struct list_head                list;
1206 };
1207
1208 struct sonypi_eventtypes {
1209         u8                      data;
1210         unsigned long           mask;
1211         struct sonypi_event     *events;
1212 };
1213
1214 struct device_ctrl {
1215         int                             model;
1216         int                             (*handle_irq)(const u8, const u8);
1217         u16                             evport_offset;
1218         u8                              has_camera;
1219         u8                              has_bluetooth;
1220         u8                              has_wwan;
1221         struct sonypi_eventtypes        *event_types;
1222 };
1223
1224 struct sony_pic_dev {
1225         struct device_ctrl      *control;
1226         struct acpi_device      *acpi_dev;
1227         struct sony_pic_irq     *cur_irq;
1228         struct sony_pic_ioport  *cur_ioport;
1229         struct list_head        interrupts;
1230         struct list_head        ioports;
1231         struct mutex            lock;
1232         u8                      camera_power;
1233         u8                      bluetooth_power;
1234         u8                      wwan_power;
1235 };
1236
1237 static struct sony_pic_dev spic_dev = {
1238         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1239         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1240 };
1241
1242 /* Event masks */
1243 #define SONYPI_JOGGER_MASK                      0x00000001
1244 #define SONYPI_CAPTURE_MASK                     0x00000002
1245 #define SONYPI_FNKEY_MASK                       0x00000004
1246 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1247 #define SONYPI_PKEY_MASK                        0x00000010
1248 #define SONYPI_BACK_MASK                        0x00000020
1249 #define SONYPI_HELP_MASK                        0x00000040
1250 #define SONYPI_LID_MASK                         0x00000080
1251 #define SONYPI_ZOOM_MASK                        0x00000100
1252 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1253 #define SONYPI_MEYE_MASK                        0x00000400
1254 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1255 #define SONYPI_BATTERY_MASK                     0x00001000
1256 #define SONYPI_WIRELESS_MASK                    0x00002000
1257
1258 struct sonypi_event {
1259         u8      data;
1260         u8      event;
1261 };
1262
1263 /* The set of possible button release events */
1264 static struct sonypi_event sonypi_releaseev[] = {
1265         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1266         { 0, 0 }
1267 };
1268
1269 /* The set of possible jogger events  */
1270 static struct sonypi_event sonypi_joggerev[] = {
1271         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1272         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1273         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1274         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1275         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1276         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1277         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1278         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1279         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1280         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1281         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1282         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1283         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1284         { 0, 0 }
1285 };
1286
1287 /* The set of possible capture button events */
1288 static struct sonypi_event sonypi_captureev[] = {
1289         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1290         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1291         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1292         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1293         { 0, 0 }
1294 };
1295
1296 /* The set of possible fnkeys events */
1297 static struct sonypi_event sonypi_fnkeyev[] = {
1298         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1299         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1300         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1301         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1302         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1303         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1304         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1305         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1306         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1307         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1308         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1309         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1310         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1311         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1312         { 0x21, SONYPI_EVENT_FNKEY_1 },
1313         { 0x22, SONYPI_EVENT_FNKEY_2 },
1314         { 0x31, SONYPI_EVENT_FNKEY_D },
1315         { 0x32, SONYPI_EVENT_FNKEY_E },
1316         { 0x33, SONYPI_EVENT_FNKEY_F },
1317         { 0x34, SONYPI_EVENT_FNKEY_S },
1318         { 0x35, SONYPI_EVENT_FNKEY_B },
1319         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1320         { 0, 0 }
1321 };
1322
1323 /* The set of possible program key events */
1324 static struct sonypi_event sonypi_pkeyev[] = {
1325         { 0x01, SONYPI_EVENT_PKEY_P1 },
1326         { 0x02, SONYPI_EVENT_PKEY_P2 },
1327         { 0x04, SONYPI_EVENT_PKEY_P3 },
1328         { 0, 0 }
1329 };
1330
1331 /* The set of possible bluetooth events */
1332 static struct sonypi_event sonypi_blueev[] = {
1333         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1334         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1335         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1336         { 0, 0 }
1337 };
1338
1339 /* The set of possible wireless events */
1340 static struct sonypi_event sonypi_wlessev[] = {
1341         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1342         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1343         { 0, 0 }
1344 };
1345
1346 /* The set of possible back button events */
1347 static struct sonypi_event sonypi_backev[] = {
1348         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1349         { 0, 0 }
1350 };
1351
1352 /* The set of possible help button events */
1353 static struct sonypi_event sonypi_helpev[] = {
1354         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1355         { 0, 0 }
1356 };
1357
1358
1359 /* The set of possible lid events */
1360 static struct sonypi_event sonypi_lidev[] = {
1361         { 0x51, SONYPI_EVENT_LID_CLOSED },
1362         { 0x50, SONYPI_EVENT_LID_OPENED },
1363         { 0, 0 }
1364 };
1365
1366 /* The set of possible zoom events */
1367 static struct sonypi_event sonypi_zoomev[] = {
1368         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1369         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1370         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1371         { 0, 0 }
1372 };
1373
1374 /* The set of possible thumbphrase events */
1375 static struct sonypi_event sonypi_thumbphraseev[] = {
1376         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1377         { 0, 0 }
1378 };
1379
1380 /* The set of possible motioneye camera events */
1381 static struct sonypi_event sonypi_meyeev[] = {
1382         { 0x00, SONYPI_EVENT_MEYE_FACE },
1383         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1384         { 0, 0 }
1385 };
1386
1387 /* The set of possible memorystick events */
1388 static struct sonypi_event sonypi_memorystickev[] = {
1389         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1390         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1391         { 0, 0 }
1392 };
1393
1394 /* The set of possible battery events */
1395 static struct sonypi_event sonypi_batteryev[] = {
1396         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1397         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1398         { 0, 0 }
1399 };
1400
1401 static struct sonypi_eventtypes type1_events[] = {
1402         { 0, 0xffffffff, sonypi_releaseev },
1403         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1404         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1405         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1406         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1407         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1408         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1409         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1410         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1411         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1412         { 0 },
1413 };
1414 static struct sonypi_eventtypes type2_events[] = {
1415         { 0, 0xffffffff, sonypi_releaseev },
1416         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1417         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1418         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1419         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1420         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1421         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1422         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1423         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1424         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1425         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1426         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1427         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1428         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1429         { 0 },
1430 };
1431 static struct sonypi_eventtypes type3_events[] = {
1432         { 0, 0xffffffff, sonypi_releaseev },
1433         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1434         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1435         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1436         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1437         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1438         { 0 },
1439 };
1440 static struct sonypi_eventtypes type4_events[] = {
1441         { 0, 0xffffffff, sonypi_releaseev },
1442         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1443         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1444         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1445         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1446         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1447         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1448         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1449         { 0 },
1450 };
1451
1452 /* low level spic calls */
1453 #define ITERATIONS_LONG         10000
1454 #define ITERATIONS_SHORT        10
1455 #define wait_on_command(command, iterations) {                          \
1456         unsigned int n = iterations;                                    \
1457         while (--n && (command))                                        \
1458                 udelay(1);                                              \
1459         if (!n)                                                         \
1460                 dprintk("command failed at %s : %s (line %d)\n",        \
1461                                 __FILE__, __func__, __LINE__);  \
1462 }
1463
1464 static u8 sony_pic_call1(u8 dev)
1465 {
1466         u8 v1, v2;
1467
1468         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1469                         ITERATIONS_LONG);
1470         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1471         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1472         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1473         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1474         return v2;
1475 }
1476
1477 static u8 sony_pic_call2(u8 dev, u8 fn)
1478 {
1479         u8 v1;
1480
1481         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1482                         ITERATIONS_LONG);
1483         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1484         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1485                         ITERATIONS_LONG);
1486         outb(fn, spic_dev.cur_ioport->io1.minimum);
1487         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1488         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1489         return v1;
1490 }
1491
1492 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1493 {
1494         u8 v1;
1495
1496         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1497         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1498         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1499         outb(fn, spic_dev.cur_ioport->io1.minimum);
1500         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1501         outb(v, spic_dev.cur_ioport->io1.minimum);
1502         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1503         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1504                         dev, fn, v, v1);
1505         return v1;
1506 }
1507
1508 /*
1509  * minidrivers for SPIC models
1510  */
1511 static int type4_handle_irq(const u8 data_mask, const u8 ev)
1512 {
1513         /*
1514          * 0x31 could mean we have to take some extra action and wait for
1515          * the next irq for some Type4 models, it will generate a new
1516          * irq and we can read new data from the device:
1517          *  - 0x5c and 0x5f requires 0xA0
1518          *  - 0x61 requires 0xB3
1519          */
1520         if (data_mask == 0x31) {
1521                 if (ev == 0x5c || ev == 0x5f)
1522                         sony_pic_call1(0xA0);
1523                 else if (ev == 0x61)
1524                         sony_pic_call1(0xB3);
1525                 return 0;
1526         }
1527         return 1;
1528 }
1529
1530 static struct device_ctrl spic_types[] = {
1531         {
1532                 .model = SONYPI_DEVICE_TYPE1,
1533                 .handle_irq = NULL,
1534                 .evport_offset = SONYPI_TYPE1_OFFSET,
1535                 .event_types = type1_events,
1536         },
1537         {
1538                 .model = SONYPI_DEVICE_TYPE2,
1539                 .handle_irq = NULL,
1540                 .evport_offset = SONYPI_TYPE2_OFFSET,
1541                 .event_types = type2_events,
1542         },
1543         {
1544                 .model = SONYPI_DEVICE_TYPE3,
1545                 .handle_irq = NULL,
1546                 .evport_offset = SONYPI_TYPE3_OFFSET,
1547                 .event_types = type3_events,
1548         },
1549         {
1550                 .model = SONYPI_DEVICE_TYPE4,
1551                 .handle_irq = type4_handle_irq,
1552                 .evport_offset = SONYPI_TYPE4_OFFSET,
1553                 .event_types = type4_events,
1554         },
1555 };
1556
1557 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1558 {
1559         struct pci_dev *pcidev;
1560
1561         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1562                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1563         if (pcidev) {
1564                 dev->control = &spic_types[0];
1565                 goto out;
1566         }
1567
1568         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1569                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1570         if (pcidev) {
1571                 dev->control = &spic_types[2];
1572                 goto out;
1573         }
1574
1575         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1576                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1577         if (pcidev) {
1578                 dev->control = &spic_types[3];
1579                 goto out;
1580         }
1581
1582         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1583                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1584         if (pcidev) {
1585                 dev->control = &spic_types[3];
1586                 goto out;
1587         }
1588
1589         /* default */
1590         dev->control = &spic_types[1];
1591
1592 out:
1593         if (pcidev)
1594                 pci_dev_put(pcidev);
1595
1596         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1597                         dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
1598                         dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
1599                         dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
1600 }
1601
1602 /* camera tests and poweron/poweroff */
1603 #define SONYPI_CAMERA_PICTURE           5
1604 #define SONYPI_CAMERA_CONTROL           0x10
1605
1606 #define SONYPI_CAMERA_BRIGHTNESS                0
1607 #define SONYPI_CAMERA_CONTRAST                  1
1608 #define SONYPI_CAMERA_HUE                       2
1609 #define SONYPI_CAMERA_COLOR                     3
1610 #define SONYPI_CAMERA_SHARPNESS                 4
1611
1612 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1613 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1614 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1615 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1616
1617 /* the rest don't need a loop until not 0xff */
1618 #define SONYPI_CAMERA_AGC                       6
1619 #define SONYPI_CAMERA_AGC_MASK                  0x30
1620 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1621
1622 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1623 #define SONYPI_CAMERA_CONTROL                   0x10
1624
1625 #define SONYPI_CAMERA_STATUS                    7
1626 #define SONYPI_CAMERA_STATUS_READY              0x2
1627 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1628
1629 #define SONYPI_DIRECTION_BACKWARDS              0x4
1630
1631 #define SONYPI_CAMERA_REVISION                  8
1632 #define SONYPI_CAMERA_ROMVERSION                9
1633
1634 static int __sony_pic_camera_ready(void)
1635 {
1636         u8 v;
1637
1638         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1639         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1640 }
1641
1642 static int __sony_pic_camera_off(void)
1643 {
1644         if (!camera) {
1645                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1646                 return -ENODEV;
1647         }
1648
1649         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1650                                 SONYPI_CAMERA_MUTE_MASK),
1651                         ITERATIONS_SHORT);
1652
1653         if (spic_dev.camera_power) {
1654                 sony_pic_call2(0x91, 0);
1655                 spic_dev.camera_power = 0;
1656         }
1657         return 0;
1658 }
1659
1660 static int __sony_pic_camera_on(void)
1661 {
1662         int i, j, x;
1663
1664         if (!camera) {
1665                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1666                 return -ENODEV;
1667         }
1668
1669         if (spic_dev.camera_power)
1670                 return 0;
1671
1672         for (j = 5; j > 0; j--) {
1673
1674                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1675                         msleep(10);
1676                 sony_pic_call1(0x93);
1677
1678                 for (i = 400; i > 0; i--) {
1679                         if (__sony_pic_camera_ready())
1680                                 break;
1681                         msleep(10);
1682                 }
1683                 if (i)
1684                         break;
1685         }
1686
1687         if (j == 0) {
1688                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1689                 return -ENODEV;
1690         }
1691
1692         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1693                                 0x5a),
1694                         ITERATIONS_SHORT);
1695
1696         spic_dev.camera_power = 1;
1697         return 0;
1698 }
1699
1700 /* External camera command (exported to the motion eye v4l driver) */
1701 int sony_pic_camera_command(int command, u8 value)
1702 {
1703         if (!camera)
1704                 return -EIO;
1705
1706         mutex_lock(&spic_dev.lock);
1707
1708         switch (command) {
1709         case SONY_PIC_COMMAND_SETCAMERA:
1710                 if (value)
1711                         __sony_pic_camera_on();
1712                 else
1713                         __sony_pic_camera_off();
1714                 break;
1715         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1716                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1717                                 ITERATIONS_SHORT);
1718                 break;
1719         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1720                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1721                                 ITERATIONS_SHORT);
1722                 break;
1723         case SONY_PIC_COMMAND_SETCAMERAHUE:
1724                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1725                                 ITERATIONS_SHORT);
1726                 break;
1727         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1728                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1729                                 ITERATIONS_SHORT);
1730                 break;
1731         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1732                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1733                                 ITERATIONS_SHORT);
1734                 break;
1735         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1736                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1737                                 ITERATIONS_SHORT);
1738                 break;
1739         case SONY_PIC_COMMAND_SETCAMERAAGC:
1740                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1741                                 ITERATIONS_SHORT);
1742                 break;
1743         default:
1744                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1745                        command);
1746                 break;
1747         }
1748         mutex_unlock(&spic_dev.lock);
1749         return 0;
1750 }
1751 EXPORT_SYMBOL(sony_pic_camera_command);
1752
1753 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1754 static void sony_pic_set_wwanpower(u8 state)
1755 {
1756         state = !!state;
1757         mutex_lock(&spic_dev.lock);
1758         if (spic_dev.wwan_power == state) {
1759                 mutex_unlock(&spic_dev.lock);
1760                 return;
1761         }
1762         sony_pic_call2(0xB0, state);
1763         spic_dev.wwan_power = state;
1764         mutex_unlock(&spic_dev.lock);
1765 }
1766
1767 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1768                 struct device_attribute *attr,
1769                 const char *buffer, size_t count)
1770 {
1771         unsigned long value;
1772         if (count > 31)
1773                 return -EINVAL;
1774
1775         value = simple_strtoul(buffer, NULL, 10);
1776         sony_pic_set_wwanpower(value);
1777
1778         return count;
1779 }
1780
1781 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1782                 struct device_attribute *attr, char *buffer)
1783 {
1784         ssize_t count;
1785         mutex_lock(&spic_dev.lock);
1786         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1787         mutex_unlock(&spic_dev.lock);
1788         return count;
1789 }
1790
1791 /* bluetooth subsystem power state */
1792 static void __sony_pic_set_bluetoothpower(u8 state)
1793 {
1794         state = !!state;
1795         if (spic_dev.bluetooth_power == state)
1796                 return;
1797         sony_pic_call2(0x96, state);
1798         sony_pic_call1(0x82);
1799         spic_dev.bluetooth_power = state;
1800 }
1801
1802 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1803                 struct device_attribute *attr,
1804                 const char *buffer, size_t count)
1805 {
1806         unsigned long value;
1807         if (count > 31)
1808                 return -EINVAL;
1809
1810         value = simple_strtoul(buffer, NULL, 10);
1811         mutex_lock(&spic_dev.lock);
1812         __sony_pic_set_bluetoothpower(value);
1813         mutex_unlock(&spic_dev.lock);
1814
1815         return count;
1816 }
1817
1818 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1819                 struct device_attribute *attr, char *buffer)
1820 {
1821         ssize_t count = 0;
1822         mutex_lock(&spic_dev.lock);
1823         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1824         mutex_unlock(&spic_dev.lock);
1825         return count;
1826 }
1827
1828 /* fan speed */
1829 /* FAN0 information (reverse engineered from ACPI tables) */
1830 #define SONY_PIC_FAN0_STATUS    0x93
1831 static int sony_pic_set_fanspeed(unsigned long value)
1832 {
1833         return ec_write(SONY_PIC_FAN0_STATUS, value);
1834 }
1835
1836 static int sony_pic_get_fanspeed(u8 *value)
1837 {
1838         return ec_read(SONY_PIC_FAN0_STATUS, value);
1839 }
1840
1841 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1842                 struct device_attribute *attr,
1843                 const char *buffer, size_t count)
1844 {
1845         unsigned long value;
1846         if (count > 31)
1847                 return -EINVAL;
1848
1849         value = simple_strtoul(buffer, NULL, 10);
1850         if (sony_pic_set_fanspeed(value))
1851                 return -EIO;
1852
1853         return count;
1854 }
1855
1856 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1857                 struct device_attribute *attr, char *buffer)
1858 {
1859         u8 value = 0;
1860         if (sony_pic_get_fanspeed(&value))
1861                 return -EIO;
1862
1863         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1864 }
1865
1866 #define SPIC_ATTR(_name, _mode)                                 \
1867 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1868                 _mode, sony_pic_## _name ##_show,               \
1869                 sony_pic_## _name ##_store)
1870
1871 static SPIC_ATTR(bluetoothpower, 0644);
1872 static SPIC_ATTR(wwanpower, 0644);
1873 static SPIC_ATTR(fanspeed, 0644);
1874
1875 static struct attribute *spic_attributes[] = {
1876         &spic_attr_bluetoothpower.attr,
1877         &spic_attr_wwanpower.attr,
1878         &spic_attr_fanspeed.attr,
1879         NULL
1880 };
1881
1882 static struct attribute_group spic_attribute_group = {
1883         .attrs = spic_attributes
1884 };
1885
1886 /******** SONYPI compatibility **********/
1887 #ifdef CONFIG_SONYPI_COMPAT
1888
1889 /* battery / brightness / temperature  addresses */
1890 #define SONYPI_BAT_FLAGS        0x81
1891 #define SONYPI_LCD_LIGHT        0x96
1892 #define SONYPI_BAT1_PCTRM       0xa0
1893 #define SONYPI_BAT1_LEFT        0xa2
1894 #define SONYPI_BAT1_MAXRT       0xa4
1895 #define SONYPI_BAT2_PCTRM       0xa8
1896 #define SONYPI_BAT2_LEFT        0xaa
1897 #define SONYPI_BAT2_MAXRT       0xac
1898 #define SONYPI_BAT1_MAXTK       0xb0
1899 #define SONYPI_BAT1_FULL        0xb2
1900 #define SONYPI_BAT2_MAXTK       0xb8
1901 #define SONYPI_BAT2_FULL        0xba
1902 #define SONYPI_TEMP_STATUS      0xC1
1903
1904 struct sonypi_compat_s {
1905         struct fasync_struct    *fifo_async;
1906         struct kfifo            *fifo;
1907         spinlock_t              fifo_lock;
1908         wait_queue_head_t       fifo_proc_list;
1909         atomic_t                open_count;
1910 };
1911 static struct sonypi_compat_s sonypi_compat = {
1912         .open_count = ATOMIC_INIT(0),
1913 };
1914
1915 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1916 {
1917         int retval;
1918
1919         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1920         if (retval < 0)
1921                 return retval;
1922         return 0;
1923 }
1924
1925 static int sonypi_misc_release(struct inode *inode, struct file *file)
1926 {
1927         atomic_dec(&sonypi_compat.open_count);
1928         return 0;
1929 }
1930
1931 static int sonypi_misc_open(struct inode *inode, struct file *file)
1932 {
1933         /* Flush input queue on first open */
1934         lock_kernel();
1935         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1936                 kfifo_reset(sonypi_compat.fifo);
1937         unlock_kernel();
1938         return 0;
1939 }
1940
1941 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1942                                 size_t count, loff_t *pos)
1943 {
1944         ssize_t ret;
1945         unsigned char c;
1946
1947         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1948             (file->f_flags & O_NONBLOCK))
1949                 return -EAGAIN;
1950
1951         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1952                                        kfifo_len(sonypi_compat.fifo) != 0);
1953         if (ret)
1954                 return ret;
1955
1956         while (ret < count &&
1957                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1958                 if (put_user(c, buf++))
1959                         return -EFAULT;
1960                 ret++;
1961         }
1962
1963         if (ret > 0) {
1964                 struct inode *inode = file->f_path.dentry->d_inode;
1965                 inode->i_atime = current_fs_time(inode->i_sb);
1966         }
1967
1968         return ret;
1969 }
1970
1971 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1972 {
1973         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1974         if (kfifo_len(sonypi_compat.fifo))
1975                 return POLLIN | POLLRDNORM;
1976         return 0;
1977 }
1978
1979 static int ec_read16(u8 addr, u16 *value)
1980 {
1981         u8 val_lb, val_hb;
1982         if (ec_read(addr, &val_lb))
1983                 return -1;
1984         if (ec_read(addr + 1, &val_hb))
1985                 return -1;
1986         *value = val_lb | (val_hb << 8);
1987         return 0;
1988 }
1989
1990 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1991                              unsigned int cmd, unsigned long arg)
1992 {
1993         int ret = 0;
1994         void __user *argp = (void __user *)arg;
1995         u8 val8;
1996         u16 val16;
1997         int value;
1998
1999         mutex_lock(&spic_dev.lock);
2000         switch (cmd) {
2001         case SONYPI_IOCGBRT:
2002                 if (sony_backlight_device == NULL) {
2003                         ret = -EIO;
2004                         break;
2005                 }
2006                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2007                         ret = -EIO;
2008                         break;
2009                 }
2010                 val8 = ((value & 0xff) - 1) << 5;
2011                 if (copy_to_user(argp, &val8, sizeof(val8)))
2012                                 ret = -EFAULT;
2013                 break;
2014         case SONYPI_IOCSBRT:
2015                 if (sony_backlight_device == NULL) {
2016                         ret = -EIO;
2017                         break;
2018                 }
2019                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2020                         ret = -EFAULT;
2021                         break;
2022                 }
2023                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2024                                 (val8 >> 5) + 1, NULL)) {
2025                         ret = -EIO;
2026                         break;
2027                 }
2028                 /* sync the backlight device status */
2029                 sony_backlight_device->props.brightness =
2030                     sony_backlight_get_brightness(sony_backlight_device);
2031                 break;
2032         case SONYPI_IOCGBAT1CAP:
2033                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2034                         ret = -EIO;
2035                         break;
2036                 }
2037                 if (copy_to_user(argp, &val16, sizeof(val16)))
2038                         ret = -EFAULT;
2039                 break;
2040         case SONYPI_IOCGBAT1REM:
2041                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2042                         ret = -EIO;
2043                         break;
2044                 }
2045                 if (copy_to_user(argp, &val16, sizeof(val16)))
2046                         ret = -EFAULT;
2047                 break;
2048         case SONYPI_IOCGBAT2CAP:
2049                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2050                         ret = -EIO;
2051                         break;
2052                 }
2053                 if (copy_to_user(argp, &val16, sizeof(val16)))
2054                         ret = -EFAULT;
2055                 break;
2056         case SONYPI_IOCGBAT2REM:
2057                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2058                         ret = -EIO;
2059                         break;
2060                 }
2061                 if (copy_to_user(argp, &val16, sizeof(val16)))
2062                         ret = -EFAULT;
2063                 break;
2064         case SONYPI_IOCGBATFLAGS:
2065                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2066                         ret = -EIO;
2067                         break;
2068                 }
2069                 val8 &= 0x07;
2070                 if (copy_to_user(argp, &val8, sizeof(val8)))
2071                         ret = -EFAULT;
2072                 break;
2073         case SONYPI_IOCGBLUE:
2074                 val8 = spic_dev.bluetooth_power;
2075                 if (copy_to_user(argp, &val8, sizeof(val8)))
2076                         ret = -EFAULT;
2077                 break;
2078         case SONYPI_IOCSBLUE:
2079                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2080                         ret = -EFAULT;
2081                         break;
2082                 }
2083                 __sony_pic_set_bluetoothpower(val8);
2084                 break;
2085         /* FAN Controls */
2086         case SONYPI_IOCGFAN:
2087                 if (sony_pic_get_fanspeed(&val8)) {
2088                         ret = -EIO;
2089                         break;
2090                 }
2091                 if (copy_to_user(argp, &val8, sizeof(val8)))
2092                         ret = -EFAULT;
2093                 break;
2094         case SONYPI_IOCSFAN:
2095                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2096                         ret = -EFAULT;
2097                         break;
2098                 }
2099                 if (sony_pic_set_fanspeed(val8))
2100                         ret = -EIO;
2101                 break;
2102         /* GET Temperature (useful under APM) */
2103         case SONYPI_IOCGTEMP:
2104                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2105                         ret = -EIO;
2106                         break;
2107                 }
2108                 if (copy_to_user(argp, &val8, sizeof(val8)))
2109                         ret = -EFAULT;
2110                 break;
2111         default:
2112                 ret = -EINVAL;
2113         }
2114         mutex_unlock(&spic_dev.lock);
2115         return ret;
2116 }
2117
2118 static const struct file_operations sonypi_misc_fops = {
2119         .owner          = THIS_MODULE,
2120         .read           = sonypi_misc_read,
2121         .poll           = sonypi_misc_poll,
2122         .open           = sonypi_misc_open,
2123         .release        = sonypi_misc_release,
2124         .fasync         = sonypi_misc_fasync,
2125         .ioctl          = sonypi_misc_ioctl,
2126 };
2127
2128 static struct miscdevice sonypi_misc_device = {
2129         .minor          = MISC_DYNAMIC_MINOR,
2130         .name           = "sonypi",
2131         .fops           = &sonypi_misc_fops,
2132 };
2133
2134 static void sonypi_compat_report_event(u8 event)
2135 {
2136         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2137         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2138         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2139 }
2140
2141 static int sonypi_compat_init(void)
2142 {
2143         int error;
2144
2145         spin_lock_init(&sonypi_compat.fifo_lock);
2146         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2147                                          &sonypi_compat.fifo_lock);
2148         if (IS_ERR(sonypi_compat.fifo)) {
2149                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2150                 return PTR_ERR(sonypi_compat.fifo);
2151         }
2152
2153         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2154
2155         if (minor != -1)
2156                 sonypi_misc_device.minor = minor;
2157         error = misc_register(&sonypi_misc_device);
2158         if (error) {
2159                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2160                 goto err_free_kfifo;
2161         }
2162         if (minor == -1)
2163                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2164                        sonypi_misc_device.minor);
2165
2166         return 0;
2167
2168 err_free_kfifo:
2169         kfifo_free(sonypi_compat.fifo);
2170         return error;
2171 }
2172
2173 static void sonypi_compat_exit(void)
2174 {
2175         misc_deregister(&sonypi_misc_device);
2176         kfifo_free(sonypi_compat.fifo);
2177 }
2178 #else
2179 static int sonypi_compat_init(void) { return 0; }
2180 static void sonypi_compat_exit(void) { }
2181 static void sonypi_compat_report_event(u8 event) { }
2182 #endif /* CONFIG_SONYPI_COMPAT */
2183
2184 /*
2185  * ACPI callbacks
2186  */
2187 static acpi_status
2188 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2189 {
2190         u32 i;
2191         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2192
2193         switch (resource->type) {
2194         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2195                 {
2196                         /* start IO enumeration */
2197                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2198                         if (!ioport)
2199                                 return AE_ERROR;
2200
2201                         list_add(&ioport->list, &dev->ioports);
2202                         return AE_OK;
2203                 }
2204
2205         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2206                 /* end IO enumeration */
2207                 return AE_OK;
2208
2209         case ACPI_RESOURCE_TYPE_IRQ:
2210                 {
2211                         struct acpi_resource_irq *p = &resource->data.irq;
2212                         struct sony_pic_irq *interrupt = NULL;
2213                         if (!p || !p->interrupt_count) {
2214                                 /*
2215                                  * IRQ descriptors may have no IRQ# bits set,
2216                                  * particularly those those w/ _STA disabled
2217                                  */
2218                                 dprintk("Blank IRQ resource\n");
2219                                 return AE_OK;
2220                         }
2221                         for (i = 0; i < p->interrupt_count; i++) {
2222                                 if (!p->interrupts[i]) {
2223                                         printk(KERN_WARNING DRV_PFX
2224                                                         "Invalid IRQ %d\n",
2225                                                         p->interrupts[i]);
2226                                         continue;
2227                                 }
2228                                 interrupt = kzalloc(sizeof(*interrupt),
2229                                                 GFP_KERNEL);
2230                                 if (!interrupt)
2231                                         return AE_ERROR;
2232
2233                                 list_add(&interrupt->list, &dev->interrupts);
2234                                 interrupt->irq.triggering = p->triggering;
2235                                 interrupt->irq.polarity = p->polarity;
2236                                 interrupt->irq.sharable = p->sharable;
2237                                 interrupt->irq.interrupt_count = 1;
2238                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2239                         }
2240                         return AE_OK;
2241                 }
2242         case ACPI_RESOURCE_TYPE_IO:
2243                 {
2244                         struct acpi_resource_io *io = &resource->data.io;
2245                         struct sony_pic_ioport *ioport =
2246                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2247                         if (!io) {
2248                                 dprintk("Blank IO resource\n");
2249                                 return AE_OK;
2250                         }
2251
2252                         if (!ioport->io1.minimum) {
2253                                 memcpy(&ioport->io1, io, sizeof(*io));
2254                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2255                                                 ioport->io1.address_length);
2256                         }
2257                         else if (!ioport->io2.minimum) {
2258                                 memcpy(&ioport->io2, io, sizeof(*io));
2259                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2260                                                 ioport->io2.address_length);
2261                         }
2262                         else {
2263                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2264                                 return AE_ERROR;
2265                         }
2266                         return AE_OK;
2267                 }
2268         default:
2269                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2270                                 resource->type);
2271
2272         case ACPI_RESOURCE_TYPE_END_TAG:
2273                 return AE_OK;
2274         }
2275         return AE_CTRL_TERMINATE;
2276 }
2277
2278 static int sony_pic_possible_resources(struct acpi_device *device)
2279 {
2280         int result = 0;
2281         acpi_status status = AE_OK;
2282
2283         if (!device)
2284                 return -EINVAL;
2285
2286         /* get device status */
2287         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2288         dprintk("Evaluating _STA\n");
2289         result = acpi_bus_get_status(device);
2290         if (result) {
2291                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2292                 goto end;
2293         }
2294
2295         if (!device->status.enabled)
2296                 dprintk("Device disabled\n");
2297         else
2298                 dprintk("Device enabled\n");
2299
2300         /*
2301          * Query and parse 'method'
2302          */
2303         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2304         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2305                         sony_pic_read_possible_resource, &spic_dev);
2306         if (ACPI_FAILURE(status)) {
2307                 printk(KERN_WARNING DRV_PFX
2308                                 "Failure evaluating %s\n",
2309                                 METHOD_NAME__PRS);
2310                 result = -ENODEV;
2311         }
2312 end:
2313         return result;
2314 }
2315
2316 /*
2317  *  Disable the spic device by calling its _DIS method
2318  */
2319 static int sony_pic_disable(struct acpi_device *device)
2320 {
2321         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2322                                                NULL);
2323
2324         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2325                 return -ENXIO;
2326
2327         dprintk("Device disabled\n");
2328         return 0;
2329 }
2330
2331
2332 /*
2333  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2334  *
2335  *  Call _SRS to set current resources
2336  */
2337 static int sony_pic_enable(struct acpi_device *device,
2338                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2339 {
2340         acpi_status status;
2341         int result = 0;
2342         /* Type 1 resource layout is:
2343          *    IO
2344          *    IO
2345          *    IRQNoFlags
2346          *    End
2347          *
2348          * Type 2 and 3 resource layout is:
2349          *    IO
2350          *    IRQNoFlags
2351          *    End
2352          */
2353         struct {
2354                 struct acpi_resource res1;
2355                 struct acpi_resource res2;
2356                 struct acpi_resource res3;
2357                 struct acpi_resource res4;
2358         } *resource;
2359         struct acpi_buffer buffer = { 0, NULL };
2360
2361         if (!ioport || !irq)
2362                 return -EINVAL;
2363
2364         /* init acpi_buffer */
2365         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2366         if (!resource)
2367                 return -ENOMEM;
2368
2369         buffer.length = sizeof(*resource) + 1;
2370         buffer.pointer = resource;
2371
2372         /* setup Type 1 resources */
2373         if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2374
2375                 /* setup io resources */
2376                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2377                 resource->res1.length = sizeof(struct acpi_resource);
2378                 memcpy(&resource->res1.data.io, &ioport->io1,
2379                                 sizeof(struct acpi_resource_io));
2380
2381                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2382                 resource->res2.length = sizeof(struct acpi_resource);
2383                 memcpy(&resource->res2.data.io, &ioport->io2,
2384                                 sizeof(struct acpi_resource_io));
2385
2386                 /* setup irq resource */
2387                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2388                 resource->res3.length = sizeof(struct acpi_resource);
2389                 memcpy(&resource->res3.data.irq, &irq->irq,
2390                                 sizeof(struct acpi_resource_irq));
2391                 /* we requested a shared irq */
2392                 resource->res3.data.irq.sharable = ACPI_SHARED;
2393
2394                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2395
2396         }
2397         /* setup Type 2/3 resources */
2398         else {
2399                 /* setup io resource */
2400                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2401                 resource->res1.length = sizeof(struct acpi_resource);
2402                 memcpy(&resource->res1.data.io, &ioport->io1,
2403                                 sizeof(struct acpi_resource_io));
2404
2405                 /* setup irq resource */
2406                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2407                 resource->res2.length = sizeof(struct acpi_resource);
2408                 memcpy(&resource->res2.data.irq, &irq->irq,
2409                                 sizeof(struct acpi_resource_irq));
2410                 /* we requested a shared irq */
2411                 resource->res2.data.irq.sharable = ACPI_SHARED;
2412
2413                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2414         }
2415
2416         /* Attempt to set the resource */
2417         dprintk("Evaluating _SRS\n");
2418         status = acpi_set_current_resources(device->handle, &buffer);
2419
2420         /* check for total failure */
2421         if (ACPI_FAILURE(status)) {
2422                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2423                 result = -ENODEV;
2424                 goto end;
2425         }
2426
2427         /* Necessary device initializations calls (from sonypi) */
2428         sony_pic_call1(0x82);
2429         sony_pic_call2(0x81, 0xff);
2430         sony_pic_call1(compat ? 0x92 : 0x82);
2431
2432 end:
2433         kfree(resource);
2434         return result;
2435 }
2436
2437 /*****************
2438  *
2439  * ISR: some event is available
2440  *
2441  *****************/
2442 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2443 {
2444         int i, j;
2445         u8 ev = 0;
2446         u8 data_mask = 0;
2447         u8 device_event = 0;
2448
2449         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2450
2451         ev = inb_p(dev->cur_ioport->io1.minimum);
2452         if (dev->cur_ioport->io2.minimum)
2453                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2454         else
2455                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2456                                 dev->control->evport_offset);
2457
2458         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2459                         ev, data_mask, dev->cur_ioport->io1.minimum,
2460                         dev->control->evport_offset);
2461
2462         if (ev == 0x00 || ev == 0xff)
2463                 return IRQ_HANDLED;
2464
2465         for (i = 0; dev->control->event_types[i].mask; i++) {
2466
2467                 if ((data_mask & dev->control->event_types[i].data) !=
2468                     dev->control->event_types[i].data)
2469                         continue;
2470
2471                 if (!(mask & dev->control->event_types[i].mask))
2472                         continue;
2473
2474                 for (j = 0; dev->control->event_types[i].events[j].event; j++) {
2475                         if (ev == dev->control->event_types[i].events[j].data) {
2476                                 device_event =
2477                                         dev->control->
2478                                                 event_types[i].events[j].event;
2479                                 goto found;
2480                         }
2481                 }
2482         }
2483         /* Still not able to decode the event try to pass
2484          * it over to the minidriver
2485          */
2486         if (dev->control->handle_irq &&
2487                         dev->control->handle_irq(data_mask, ev) == 0)
2488                 return IRQ_HANDLED;
2489
2490         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2491                         ev, data_mask, dev->cur_ioport->io1.minimum,
2492                         dev->control->evport_offset);
2493         return IRQ_HANDLED;
2494
2495 found:
2496         sony_laptop_report_input_event(device_event);
2497         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2498         sonypi_compat_report_event(device_event);
2499
2500         return IRQ_HANDLED;
2501 }
2502
2503 /*****************
2504  *
2505  *  ACPI driver
2506  *
2507  *****************/
2508 static int sony_pic_remove(struct acpi_device *device, int type)
2509 {
2510         struct sony_pic_ioport *io, *tmp_io;
2511         struct sony_pic_irq *irq, *tmp_irq;
2512
2513         if (sony_pic_disable(device)) {
2514                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2515                 return -ENXIO;
2516         }
2517
2518         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2519         release_region(spic_dev.cur_ioport->io1.minimum,
2520                         spic_dev.cur_ioport->io1.address_length);
2521         if (spic_dev.cur_ioport->io2.minimum)
2522                 release_region(spic_dev.cur_ioport->io2.minimum,
2523                                 spic_dev.cur_ioport->io2.address_length);
2524
2525         sonypi_compat_exit();
2526
2527         sony_laptop_remove_input();
2528
2529         /* pf attrs */
2530         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2531         sony_pf_remove();
2532
2533         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2534                 list_del(&io->list);
2535                 kfree(io);
2536         }
2537         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2538                 list_del(&irq->list);
2539                 kfree(irq);
2540         }
2541         spic_dev.cur_ioport = NULL;
2542         spic_dev.cur_irq = NULL;
2543
2544         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2545         return 0;
2546 }
2547
2548 static int sony_pic_add(struct acpi_device *device)
2549 {
2550         int result;
2551         struct sony_pic_ioport *io, *tmp_io;
2552         struct sony_pic_irq *irq, *tmp_irq;
2553
2554         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2555                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2556
2557         spic_dev.acpi_dev = device;
2558         strcpy(acpi_device_class(device), "sony/hotkey");
2559         sony_pic_detect_device_type(&spic_dev);
2560         mutex_init(&spic_dev.lock);
2561
2562         /* read _PRS resources */
2563         result = sony_pic_possible_resources(device);
2564         if (result) {
2565                 printk(KERN_ERR DRV_PFX
2566                                 "Unabe to read possible resources.\n");
2567                 goto err_free_resources;
2568         }
2569
2570         /* setup input devices and helper fifo */
2571         result = sony_laptop_setup_input(device);
2572         if (result) {
2573                 printk(KERN_ERR DRV_PFX
2574                                 "Unabe to create input devices.\n");
2575                 goto err_free_resources;
2576         }
2577
2578         if (sonypi_compat_init())
2579                 goto err_remove_input;
2580
2581         /* request io port */
2582         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2583                 if (request_region(io->io1.minimum, io->io1.address_length,
2584                                         "Sony Programable I/O Device")) {
2585                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2586                                         io->io1.minimum, io->io1.maximum,
2587                                         io->io1.address_length);
2588                         /* Type 1 have 2 ioports */
2589                         if (io->io2.minimum) {
2590                                 if (request_region(io->io2.minimum,
2591                                                 io->io2.address_length,
2592                                                 "Sony Programable I/O Device")) {
2593                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2594                                                         io->io2.minimum, io->io2.maximum,
2595                                                         io->io2.address_length);
2596                                         spic_dev.cur_ioport = io;
2597                                         break;
2598                                 }
2599                                 else {
2600                                         dprintk("Unable to get I/O port2: "
2601                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2602                                                         io->io2.minimum, io->io2.maximum,
2603                                                         io->io2.address_length);
2604                                         release_region(io->io1.minimum,
2605                                                         io->io1.address_length);
2606                                 }
2607                         }
2608                         else {
2609                                 spic_dev.cur_ioport = io;
2610                                 break;
2611                         }
2612                 }
2613         }
2614         if (!spic_dev.cur_ioport) {
2615                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2616                 result = -ENODEV;
2617                 goto err_remove_compat;
2618         }
2619
2620         /* request IRQ */
2621         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2622                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2623                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2624                         dprintk("IRQ: %d - triggering: %d - "
2625                                         "polarity: %d - shr: %d\n",
2626                                         irq->irq.interrupts[0],
2627                                         irq->irq.triggering,
2628                                         irq->irq.polarity,
2629                                         irq->irq.sharable);
2630                         spic_dev.cur_irq = irq;
2631                         break;
2632                 }
2633         }
2634         if (!spic_dev.cur_irq) {
2635                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2636                 result = -ENODEV;
2637                 goto err_release_region;
2638         }
2639
2640         /* set resource status _SRS */
2641         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2642         if (result) {
2643                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2644                 goto err_free_irq;
2645         }
2646
2647         spic_dev.bluetooth_power = -1;
2648         /* create device attributes */
2649         result = sony_pf_add();
2650         if (result)
2651                 goto err_disable_device;
2652
2653         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2654         if (result)
2655                 goto err_remove_pf;
2656
2657         return 0;
2658
2659 err_remove_pf:
2660         sony_pf_remove();
2661
2662 err_disable_device:
2663         sony_pic_disable(device);
2664
2665 err_free_irq:
2666         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2667
2668 err_release_region:
2669         release_region(spic_dev.cur_ioport->io1.minimum,
2670                         spic_dev.cur_ioport->io1.address_length);
2671         if (spic_dev.cur_ioport->io2.minimum)
2672                 release_region(spic_dev.cur_ioport->io2.minimum,
2673                                 spic_dev.cur_ioport->io2.address_length);
2674
2675 err_remove_compat:
2676         sonypi_compat_exit();
2677
2678 err_remove_input:
2679         sony_laptop_remove_input();
2680
2681 err_free_resources:
2682         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2683                 list_del(&io->list);
2684                 kfree(io);
2685         }
2686         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2687                 list_del(&irq->list);
2688                 kfree(irq);
2689         }
2690         spic_dev.cur_ioport = NULL;
2691         spic_dev.cur_irq = NULL;
2692
2693         return result;
2694 }
2695
2696 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2697 {
2698         if (sony_pic_disable(device))
2699                 return -ENXIO;
2700         return 0;
2701 }
2702
2703 static int sony_pic_resume(struct acpi_device *device)
2704 {
2705         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2706         return 0;
2707 }
2708
2709 static const struct acpi_device_id sony_pic_device_ids[] = {
2710         {SONY_PIC_HID, 0},
2711         {"", 0},
2712 };
2713
2714 static struct acpi_driver sony_pic_driver = {
2715         .name = SONY_PIC_DRIVER_NAME,
2716         .class = SONY_PIC_CLASS,
2717         .ids = sony_pic_device_ids,
2718         .owner = THIS_MODULE,
2719         .ops = {
2720                 .add = sony_pic_add,
2721                 .remove = sony_pic_remove,
2722                 .suspend = sony_pic_suspend,
2723                 .resume = sony_pic_resume,
2724                 },
2725 };
2726
2727 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2728         {
2729                 .ident = "Sony Vaio",
2730                 .matches = {
2731                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2732                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2733                 },
2734         },
2735         {
2736                 .ident = "Sony Vaio",
2737                 .matches = {
2738                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2739                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2740                 },
2741         },
2742         { }
2743 };
2744
2745 static int __init sony_laptop_init(void)
2746 {
2747         int result;
2748
2749         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2750                 result = acpi_bus_register_driver(&sony_pic_driver);
2751                 if (result) {
2752                         printk(KERN_ERR DRV_PFX
2753                                         "Unable to register SPIC driver.");
2754                         goto out;
2755                 }
2756         }
2757
2758         result = acpi_bus_register_driver(&sony_nc_driver);
2759         if (result) {
2760                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2761                 goto out_unregister_pic;
2762         }
2763
2764         return 0;
2765
2766 out_unregister_pic:
2767         if (!no_spic)
2768                 acpi_bus_unregister_driver(&sony_pic_driver);
2769 out:
2770         return result;
2771 }
2772
2773 static void __exit sony_laptop_exit(void)
2774 {
2775         acpi_bus_unregister_driver(&sony_nc_driver);
2776         if (!no_spic)
2777                 acpi_bus_unregister_driver(&sony_pic_driver);
2778 }
2779
2780 module_init(sony_laptop_init);
2781 module_exit(sony_laptop_exit);