err.no Git - linux-2.6/blob - drivers/misc/sony-laptop.c

   1 /*
   2  * ACPI Sony Notebook Control Driver (SNC and SPIC)
   3  *
   4  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   5  * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
   6  *
   7  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   8  * which are copyrighted by their respective authors.
   9  *
  10  * The SNY6001 driver part is based on the sonypi driver which includes
  11  * material from:
  12  *
  13  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  14  *
  15  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  16  *
  17  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
  18  *
  19  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  20  *
  21  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  22  *
  23  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  24  *
  25  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  26  *
  27  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  28  *
  29  * This program is free software; you can redistribute it and/or modify
  30  * it under the terms of the GNU General Public License as published by
  31  * the Free Software Foundation; either version 2 of the License, or
  32  * (at your option) any later version.
  33  *
  34  * This program is distributed in the hope that it will be useful,
  35  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  36  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  37  * GNU General Public License for more details.
  38  *
  39  * You should have received a copy of the GNU General Public License
  40  * along with this program; if not, write to the Free Software
  41  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  42  *
  43  */
  44
  45 #include <linux/kernel.h>
  46 #include <linux/module.h>
  47 #include <linux/moduleparam.h>
  48 #include <linux/init.h>
  49 #include <linux/types.h>
  50 #include <linux/backlight.h>
  51 #include <linux/platform_device.h>
  52 #include <linux/err.h>
  53 #include <linux/dmi.h>
  54 #include <linux/pci.h>
  55 #include <linux/interrupt.h>
  56 #include <linux/delay.h>
  57 #include <linux/input.h>
  58 #include <linux/kfifo.h>
  59 #include <linux/workqueue.h>
  60 #include <linux/acpi.h>
  61 #include <acpi/acpi_drivers.h>
  62 #include <acpi/acpi_bus.h>
  63 #include <asm/uaccess.h>
  64 #include <linux/sonypi.h>
  65 #include <linux/sony-laptop.h>
  66 #ifdef CONFIG_SONYPI_COMPAT
  67 #include <linux/poll.h>
  68 #include <linux/miscdevice.h>
  69 #endif
  70
  71 #define DRV_PFX                 "sony-laptop: "
  72 #define dprintk(msg...)         do {                    \
  73         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  74 } while (0)
  75
  76 #define SONY_LAPTOP_DRIVER_VERSION      "0.5"
  77
  78 #define SONY_NC_CLASS           "sony-nc"
  79 #define SONY_NC_HID             "SNY5001"
  80 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  81
  82 #define SONY_PIC_CLASS          "sony-pic"
  83 #define SONY_PIC_HID            "SNY6001"
  84 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  85
  86 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  87 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  88 MODULE_LICENSE("GPL");
  89 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  90
  91 static int debug;
  92 module_param(debug, int, 0);
  93 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  94                  "the development of this driver");
  95
  96 static int no_spic;             /* = 0 */
  97 module_param(no_spic, int, 0444);
  98 MODULE_PARM_DESC(no_spic,
  99                  "set this if you don't want to enable the SPIC device");
 100
 101 static int compat;              /* = 0 */
 102 module_param(compat, int, 0444);
 103 MODULE_PARM_DESC(compat,
 104                  "set this if you want to enable backward compatibility mode");
 105
 106 static unsigned long mask = 0xffffffff;
 107 module_param(mask, ulong, 0644);
 108 MODULE_PARM_DESC(mask,
 109                  "set this to the mask of event you want to enable (see doc)");
 110
 111 static int camera;              /* = 0 */
 112 module_param(camera, int, 0444);
 113 MODULE_PARM_DESC(camera,
 114                  "set this to 1 to enable Motion Eye camera controls "
 115                  "(only use it if you have a C1VE or C1VN model)");
 116
 117 #ifdef CONFIG_SONYPI_COMPAT
 118 static int minor = -1;
 119 module_param(minor, int, 0);
 120 MODULE_PARM_DESC(minor,
 121                  "minor number of the misc device for the SPIC compatibility code, "
 122                  "default is -1 (automatic)");
 123 #endif
 124
 125 /*********** Input Devices ***********/
 126
 127 #define SONY_LAPTOP_BUF_SIZE    128
 128 struct sony_laptop_input_s {
 129         atomic_t                users;
 130         struct input_dev        *jog_dev;
 131         struct input_dev        *key_dev;
 132         struct kfifo            *fifo;
 133         spinlock_t              fifo_lock;
 134         struct workqueue_struct *wq;
 135 };
 136 static struct sony_laptop_input_s sony_laptop_input = {
 137         .users = ATOMIC_INIT(0),
 138 };
 139
 140 struct sony_laptop_keypress {
 141         struct input_dev *dev;
 142         int key;
 143 };
 144
 145 /* Correspondance table between sonypi events
 146  * and input layer indexes in the keymap
 147  */
 148 static int sony_laptop_input_index[] = {
 149         -1,     /* no event */
 150         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN */
 151         -1,     /* SONYPI_EVENT_JOGDIAL_UP */
 152         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 153         -1,     /* SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 154         -1,     /* SONYPI_EVENT_JOGDIAL_PRESSED */
 155         -1,     /* SONYPI_EVENT_JOGDIAL_RELEASED */
 156          0,     /* SONYPI_EVENT_CAPTURE_PRESSED */
 157          1,     /* SONYPI_EVENT_CAPTURE_RELEASED */
 158          2,     /* SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 159          3,     /* SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 160          4,     /* SONYPI_EVENT_FNKEY_ESC */
 161          5,     /* SONYPI_EVENT_FNKEY_F1 */
 162          6,     /* SONYPI_EVENT_FNKEY_F2 */
 163          7,     /* SONYPI_EVENT_FNKEY_F3 */
 164          8,     /* SONYPI_EVENT_FNKEY_F4 */
 165          9,     /* SONYPI_EVENT_FNKEY_F5 */
 166         10,     /* SONYPI_EVENT_FNKEY_F6 */
 167         11,     /* SONYPI_EVENT_FNKEY_F7 */
 168         12,     /* SONYPI_EVENT_FNKEY_F8 */
 169         13,     /* SONYPI_EVENT_FNKEY_F9 */
 170         14,     /* SONYPI_EVENT_FNKEY_F10 */
 171         15,     /* SONYPI_EVENT_FNKEY_F11 */
 172         16,     /* SONYPI_EVENT_FNKEY_F12 */
 173         17,     /* SONYPI_EVENT_FNKEY_1 */
 174         18,     /* SONYPI_EVENT_FNKEY_2 */
 175         19,     /* SONYPI_EVENT_FNKEY_D */
 176         20,     /* SONYPI_EVENT_FNKEY_E */
 177         21,     /* SONYPI_EVENT_FNKEY_F */
 178         22,     /* SONYPI_EVENT_FNKEY_S */
 179         23,     /* SONYPI_EVENT_FNKEY_B */
 180         24,     /* SONYPI_EVENT_BLUETOOTH_PRESSED */
 181         25,     /* SONYPI_EVENT_PKEY_P1 */
 182         26,     /* SONYPI_EVENT_PKEY_P2 */
 183         27,     /* SONYPI_EVENT_PKEY_P3 */
 184         28,     /* SONYPI_EVENT_BACK_PRESSED */
 185         -1,     /* SONYPI_EVENT_LID_CLOSED */
 186         -1,     /* SONYPI_EVENT_LID_OPENED */
 187         29,     /* SONYPI_EVENT_BLUETOOTH_ON */
 188         30,     /* SONYPI_EVENT_BLUETOOTH_OFF */
 189         31,     /* SONYPI_EVENT_HELP_PRESSED */
 190         32,     /* SONYPI_EVENT_FNKEY_ONLY */
 191         33,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 192         34,     /* SONYPI_EVENT_JOGDIAL_FAST_UP */
 193         35,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 194         36,     /* SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 195         37,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 196         38,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP */
 197         39,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 198         40,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 199         41,     /* SONYPI_EVENT_ZOOM_PRESSED */
 200         42,     /* SONYPI_EVENT_THUMBPHRASE_PRESSED */
 201         43,     /* SONYPI_EVENT_MEYE_FACE */
 202         44,     /* SONYPI_EVENT_MEYE_OPPOSITE */
 203         45,     /* SONYPI_EVENT_MEMORYSTICK_INSERT */
 204         46,     /* SONYPI_EVENT_MEMORYSTICK_EJECT */
 205         -1,     /* SONYPI_EVENT_ANYBUTTON_RELEASED */
 206         -1,     /* SONYPI_EVENT_BATTERY_INSERT */
 207         -1,     /* SONYPI_EVENT_BATTERY_REMOVE */
 208         -1,     /* SONYPI_EVENT_FNKEY_RELEASED */
 209         47,     /* SONYPI_EVENT_WIRELESS_ON */
 210         48,     /* SONYPI_EVENT_WIRELESS_OFF */
 211 };
 212
 213 static int sony_laptop_input_keycode_map[] = {
 214         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 215         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 216         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 217         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 218         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 219         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 220         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 221         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 222         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 223         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 224         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 225         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 226         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 227         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 228         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 229         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 230         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 231         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 232         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 233         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 234         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 235         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 236         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 237         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 238         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 239         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 240         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 241         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 242         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 243         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 244         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 245         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 246         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 247         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 248         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 249         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 250         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 251         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 252         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 253         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 254         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 255         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 256         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 257         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 258         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 259         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 260         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 261         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 262         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 263 };
 264
 265 /* release buttons after a short delay if pressed */
 266 static void do_sony_laptop_release_key(struct work_struct *work)
 267 {
 268         struct sony_laptop_keypress kp;
 269
 270         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 271                          sizeof(kp)) == sizeof(kp)) {
 272                 msleep(10);
 273                 input_report_key(kp.dev, kp.key, 0);
 274                 input_sync(kp.dev);
 275         }
 276 }
 277 static DECLARE_WORK(sony_laptop_release_key_work,
 278                 do_sony_laptop_release_key);
 279
 280 /* forward event to the input subsystem */
 281 static void sony_laptop_report_input_event(u8 event)
 282 {
 283         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 284         struct input_dev *key_dev = sony_laptop_input.key_dev;
 285         struct sony_laptop_keypress kp = { NULL };
 286
 287         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 288                 /* Nothing, not all VAIOs generate this event */
 289                 return;
 290         }
 291
 292         /* report events */
 293         switch (event) {
 294         /* jog_dev events */
 295         case SONYPI_EVENT_JOGDIAL_UP:
 296         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 297                 input_report_rel(jog_dev, REL_WHEEL, 1);
 298                 input_sync(jog_dev);
 299                 return;
 300
 301         case SONYPI_EVENT_JOGDIAL_DOWN:
 302         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 303                 input_report_rel(jog_dev, REL_WHEEL, -1);
 304                 input_sync(jog_dev);
 305                 return;
 306
 307         /* key_dev events */
 308         case SONYPI_EVENT_JOGDIAL_PRESSED:
 309                 kp.key = BTN_MIDDLE;
 310                 kp.dev = jog_dev;
 311                 break;
 312
 313         default:
 314                 if (event > ARRAY_SIZE (sony_laptop_input_keycode_map)) {
 315                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 316                         break;
 317                 }
 318                 if (sony_laptop_input_index[event] != -1) {
 319                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 320                         if (kp.key != KEY_UNKNOWN)
 321                                 kp.dev = key_dev;
 322                 }
 323                 break;
 324         }
 325
 326         if (kp.dev) {
 327                 input_report_key(kp.dev, kp.key, 1);
 328                 /* we emit the scancode so we can always remap the key */
 329                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 330                 input_sync(kp.dev);
 331                 kfifo_put(sony_laptop_input.fifo,
 332                           (unsigned char *)&kp, sizeof(kp));
 333
 334                 if (!work_pending(&sony_laptop_release_key_work))
 335                         queue_work(sony_laptop_input.wq,
 336                                         &sony_laptop_release_key_work);
 337         } else
 338                 dprintk("unknown input event %.2x\n", event);
 339 }
 340
 341 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 342 {
 343         struct input_dev *jog_dev;
 344         struct input_dev *key_dev;
 345         int i;
 346         int error;
 347
 348         /* don't run again if already initialized */
 349         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 350                 return 0;
 351
 352         /* kfifo */
 353         spin_lock_init(&sony_laptop_input.fifo_lock);
 354         sony_laptop_input.fifo =
 355                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 356                             &sony_laptop_input.fifo_lock);
 357         if (IS_ERR(sony_laptop_input.fifo)) {
 358                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 359                 error = PTR_ERR(sony_laptop_input.fifo);
 360                 goto err_dec_users;
 361         }
 362
 363         /* init workqueue */
 364         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 365         if (!sony_laptop_input.wq) {
 366                 printk(KERN_ERR DRV_PFX
 367                                 "Unabe to create workqueue.\n");
 368                 error = -ENXIO;
 369                 goto err_free_kfifo;
 370         }
 371
 372         /* input keys */
 373         key_dev = input_allocate_device();
 374         if (!key_dev) {
 375                 error = -ENOMEM;
 376                 goto err_destroy_wq;
 377         }
 378
 379         key_dev->name = "Sony Vaio Keys";
 380         key_dev->id.bustype = BUS_ISA;
 381         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 382         key_dev->dev.parent = &acpi_device->dev;
 383
 384         /* Initialize the Input Drivers: special keys */
 385         set_bit(EV_KEY, key_dev->evbit);
 386         set_bit(EV_MSC, key_dev->evbit);
 387         set_bit(MSC_SCAN, key_dev->mscbit);
 388         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 389         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 390         key_dev->keycode = &sony_laptop_input_keycode_map;
 391         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 392                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 393                         set_bit(sony_laptop_input_keycode_map[i],
 394                                 key_dev->keybit);
 395                 }
 396         }
 397
 398         error = input_register_device(key_dev);
 399         if (error)
 400                 goto err_free_keydev;
 401
 402         sony_laptop_input.key_dev = key_dev;
 403
 404         /* jogdial */
 405         jog_dev = input_allocate_device();
 406         if (!jog_dev) {
 407                 error = -ENOMEM;
 408                 goto err_unregister_keydev;
 409         }
 410
 411         jog_dev->name = "Sony Vaio Jogdial";
 412         jog_dev->id.bustype = BUS_ISA;
 413         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 414         key_dev->dev.parent = &acpi_device->dev;
 415
 416         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 417         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 418         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
 419
 420         error = input_register_device(jog_dev);
 421         if (error)
 422                 goto err_free_jogdev;
 423
 424         sony_laptop_input.jog_dev = jog_dev;
 425
 426         return 0;
 427
 428 err_free_jogdev:
 429         input_free_device(jog_dev);
 430
 431 err_unregister_keydev:
 432         input_unregister_device(key_dev);
 433         /* to avoid kref underflow below at input_free_device */
 434         key_dev = NULL;
 435
 436 err_free_keydev:
 437         input_free_device(key_dev);
 438
 439 err_destroy_wq:
 440         destroy_workqueue(sony_laptop_input.wq);
 441
 442 err_free_kfifo:
 443         kfifo_free(sony_laptop_input.fifo);
 444
 445 err_dec_users:
 446         atomic_dec(&sony_laptop_input.users);
 447         return error;
 448 }
 449
 450 static void sony_laptop_remove_input(void)
 451 {
 452         /* cleanup only after the last user has gone */
 453         if (!atomic_dec_and_test(&sony_laptop_input.users))
 454                 return;
 455
 456         /* flush workqueue first */
 457         flush_workqueue(sony_laptop_input.wq);
 458
 459         /* destroy input devs */
 460         input_unregister_device(sony_laptop_input.key_dev);
 461         sony_laptop_input.key_dev = NULL;
 462
 463         if (sony_laptop_input.jog_dev) {
 464                 input_unregister_device(sony_laptop_input.jog_dev);
 465                 sony_laptop_input.jog_dev = NULL;
 466         }
 467
 468         destroy_workqueue(sony_laptop_input.wq);
 469         kfifo_free(sony_laptop_input.fifo);
 470 }
 471
 472 /*********** Platform Device ***********/
 473
 474 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 475 static struct platform_driver sony_pf_driver = {
 476         .driver = {
 477                    .name = "sony-laptop",
 478                    .owner = THIS_MODULE,
 479                    }
 480 };
 481 static struct platform_device *sony_pf_device;
 482
 483 static int sony_pf_add(void)
 484 {
 485         int ret = 0;
 486
 487         /* don't run again if already initialized */
 488         if (atomic_add_return(1, &sony_pf_users) > 1)
 489                 return 0;
 490
 491         ret = platform_driver_register(&sony_pf_driver);
 492         if (ret)
 493                 goto out;
 494
 495         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 496         if (!sony_pf_device) {
 497                 ret = -ENOMEM;
 498                 goto out_platform_registered;
 499         }
 500
 501         ret = platform_device_add(sony_pf_device);
 502         if (ret)
 503                 goto out_platform_alloced;
 504
 505         return 0;
 506
 507       out_platform_alloced:
 508         platform_device_put(sony_pf_device);
 509         sony_pf_device = NULL;
 510       out_platform_registered:
 511         platform_driver_unregister(&sony_pf_driver);
 512       out:
 513         atomic_dec(&sony_pf_users);
 514         return ret;
 515 }
 516
 517 static void sony_pf_remove(void)
 518 {
 519         /* deregister only after the last user has gone */
 520         if (!atomic_dec_and_test(&sony_pf_users))
 521                 return;
 522
 523         platform_device_del(sony_pf_device);
 524         platform_device_put(sony_pf_device);
 525         platform_driver_unregister(&sony_pf_driver);
 526 }
 527
 528 /*********** SNC (SNY5001) Device ***********/
 529
 530 /* the device uses 1-based values, while the backlight subsystem uses
 531    0-based values */
 532 #define SONY_MAX_BRIGHTNESS     8
 533
 534 #define SNC_VALIDATE_IN         0
 535 #define SNC_VALIDATE_OUT        1
 536
 537 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 538                               char *);
 539 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 540                                const char *, size_t);
 541 static int boolean_validate(const int, const int);
 542 static int brightness_default_validate(const int, const int);
 543
 544 struct sony_nc_value {
 545         char *name;             /* name of the entry */
 546         char **acpiget;         /* names of the ACPI get function */
 547         char **acpiset;         /* names of the ACPI set function */
 548         int (*validate)(const int, const int);  /* input/output validation */
 549         int value;              /* current setting */
 550         int valid;              /* Has ever been set */
 551         int debug;              /* active only in debug mode ? */
 552         struct device_attribute devattr;        /* sysfs atribute */
 553 };
 554
 555 #define SNC_HANDLE_NAMES(_name, _values...) \
 556         static char *snc_##_name[] = { _values, NULL }
 557
 558 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 559         { \
 560                 .name           = __stringify(_name), \
 561                 .acpiget        = _getters, \
 562                 .acpiset        = _setters, \
 563                 .validate       = _validate, \
 564                 .debug          = _debug, \
 565                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 566         }
 567
 568 #define SNC_HANDLE_NULL { .name = NULL }
 569
 570 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 571
 572 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 573 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 574
 575 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 576 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 577
 578 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 579 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 580
 581 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 582 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 583
 584 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 585
 586 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 587 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 588
 589 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 590 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 591
 592 SNC_HANDLE_NAMES(PID_get, "GPID");
 593
 594 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 595 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 596
 597 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 598 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 599
 600 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 601 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 602
 603 static struct sony_nc_value sony_nc_values[] = {
 604         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 605                         snc_brightness_def_set, brightness_default_validate, 0),
 606         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 607         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 608         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 609                         boolean_validate, 0),
 610         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 611                         boolean_validate, 1),
 612         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 613                         boolean_validate, 0),
 614         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 615                         boolean_validate, 0),
 616         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 617                         boolean_validate, 0),
 618         /* unknown methods */
 619         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 620         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 621         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 622         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 623         SNC_HANDLE_NULL
 624 };
 625
 626 static acpi_handle sony_nc_acpi_handle;
 627 static struct acpi_device *sony_nc_acpi_device = NULL;
 628
 629 /*
 630  * acpi_evaluate_object wrappers
 631  */
 632 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 633 {
 634         struct acpi_buffer output;
 635         union acpi_object out_obj;
 636         acpi_status status;
 637
 638         output.length = sizeof(out_obj);
 639         output.pointer = &out_obj;
 640
 641         status = acpi_evaluate_object(handle, name, NULL, &output);
 642         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 643                 *result = out_obj.integer.value;
 644                 return 0;
 645         }
 646
 647         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 648
 649         return -1;
 650 }
 651
 652 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 653                             int *result)
 654 {
 655         struct acpi_object_list params;
 656         union acpi_object in_obj;
 657         struct acpi_buffer output;
 658         union acpi_object out_obj;
 659         acpi_status status;
 660
 661         params.count = 1;
 662         params.pointer = &in_obj;
 663         in_obj.type = ACPI_TYPE_INTEGER;
 664         in_obj.integer.value = value;
 665
 666         output.length = sizeof(out_obj);
 667         output.pointer = &out_obj;
 668
 669         status = acpi_evaluate_object(handle, name, &params, &output);
 670         if (status == AE_OK) {
 671                 if (result != NULL) {
 672                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 673                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 674                                        "return type\n");
 675                                 return -1;
 676                         }
 677                         *result = out_obj.integer.value;
 678                 }
 679                 return 0;
 680         }
 681
 682         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 683
 684         return -1;
 685 }
 686
 687 /*
 688  * sony_nc_values input/output validate functions
 689  */
 690
 691 /* brightness_default_validate:
 692  *
 693  * manipulate input output values to keep consistency with the
 694  * backlight framework for which brightness values are 0-based.
 695  */
 696 static int brightness_default_validate(const int direction, const int value)
 697 {
 698         switch (direction) {
 699                 case SNC_VALIDATE_OUT:
 700                         return value - 1;
 701                 case SNC_VALIDATE_IN:
 702                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 703                                 return value + 1;
 704         }
 705         return -EINVAL;
 706 }
 707
 708 /* boolean_validate:
 709  *
 710  * on input validate boolean values 0/1, on output just pass the
 711  * received value.
 712  */
 713 static int boolean_validate(const int direction, const int value)
 714 {
 715         if (direction == SNC_VALIDATE_IN) {
 716                 if (value != 0 && value != 1)
 717                         return -EINVAL;
 718         }
 719         return value;
 720 }
 721
 722 /*
 723  * Sysfs show/store common to all sony_nc_values
 724  */
 725 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 726                               char *buffer)
 727 {
 728         int value;
 729         struct sony_nc_value *item =
 730             container_of(attr, struct sony_nc_value, devattr);
 731
 732         if (!*item->acpiget)
 733                 return -EIO;
 734
 735         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 736                 return -EIO;
 737
 738         if (item->validate)
 739                 value = item->validate(SNC_VALIDATE_OUT, value);
 740
 741         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 742 }
 743
 744 static ssize_t sony_nc_sysfs_store(struct device *dev,
 745                                struct device_attribute *attr,
 746                                const char *buffer, size_t count)
 747 {
 748         int value;
 749         struct sony_nc_value *item =
 750             container_of(attr, struct sony_nc_value, devattr);
 751
 752         if (!item->acpiset)
 753                 return -EIO;
 754
 755         if (count > 31)
 756                 return -EINVAL;
 757
 758         value = simple_strtoul(buffer, NULL, 10);
 759
 760         if (item->validate)
 761                 value = item->validate(SNC_VALIDATE_IN, value);
 762
 763         if (value < 0)
 764                 return value;
 765
 766         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 767                 return -EIO;
 768         item->value = value;
 769         item->valid = 1;
 770         return count;
 771 }
 772
 773
 774 /*
 775  * Backlight device
 776  */
 777 static int sony_backlight_update_status(struct backlight_device *bd)
 778 {
 779         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 780                                 bd->props.brightness + 1, NULL);
 781 }
 782
 783 static int sony_backlight_get_brightness(struct backlight_device *bd)
 784 {
 785         int value;
 786
 787         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 788                 return 0;
 789         /* brightness levels are 1-based, while backlight ones are 0-based */
 790         return value - 1;
 791 }
 792
 793 static struct backlight_device *sony_backlight_device;
 794 static struct backlight_ops sony_backlight_ops = {
 795         .update_status = sony_backlight_update_status,
 796         .get_brightness = sony_backlight_get_brightness,
 797 };
 798
 799 /*
 800  * New SNC-only Vaios event mapping to driver known keys
 801  */
 802 struct sony_nc_event {
 803         u8      data;
 804         u8      event;
 805 };
 806
 807 static struct sony_nc_event *sony_nc_events;
 808
 809 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 810  * for Fn keys
 811  */
 812 static int sony_nc_C_enable(const struct dmi_system_id *id)
 813 {
 814         int result = 0;
 815
 816         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
 817
 818         sony_nc_events = id->driver_data;
 819
 820         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
 821                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
 822                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
 823                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
 824                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
 825                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
 826                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
 827                                 "functionalities may be missing\n");
 828                 return 1;
 829         }
 830         return 0;
 831 }
 832
 833 static struct sony_nc_event sony_C_events[] = {
 834         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 835         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 836         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 837         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 838         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 839         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 840         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 841         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 842         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 843         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 844         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 845         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 846         { 0, 0 },
 847 };
 848
 849 /* SNC-only model map */
 850 static const struct dmi_system_id sony_nc_ids[] = {
 851                 {
 852                         .ident = "Sony Vaio FE Series",
 853                         .callback = sony_nc_C_enable,
 854                         .driver_data = sony_C_events,
 855                         .matches = {
 856                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 857                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
 858                         },
 859                 },
 860                 {
 861                         .ident = "Sony Vaio FZ Series",
 862                         .callback = sony_nc_C_enable,
 863                         .driver_data = sony_C_events,
 864                         .matches = {
 865                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 866                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
 867                         },
 868                 },
 869                 {
 870                         .ident = "Sony Vaio C Series",
 871                         .callback = sony_nc_C_enable,
 872                         .driver_data = sony_C_events,
 873                         .matches = {
 874                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 875                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 876                         },
 877                 },
 878                 {
 879                         .ident = "Sony Vaio N Series",
 880                         .callback = sony_nc_C_enable,
 881                         .driver_data = sony_C_events,
 882                         .matches = {
 883                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 884                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
 885                         },
 886                 },
 887                 { }
 888 };
 889
 890 /*
 891  * ACPI callbacks
 892  */
 893 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 894 {
 895         struct sony_nc_event *evmap;
 896         u32 ev = event;
 897         int result;
 898
 899         if (ev == 0x92) {
 900                 /* read the key pressed from EC.GECR
 901                  * A call to SN07 with 0x0202 will do it as well respecting
 902                  * the current protocol on different OSes
 903                  *
 904                  * Note: the path for GECR may be
 905                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 906                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 907                  *
 908                  * TODO: we may want to do the same for the older GHKE -need
 909                  *       dmi list- so this snippet may become one more callback.
 910                  */
 911                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
 912                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 913                 else
 914                         ev = result & 0xFF;
 915         }
 916
 917         if (sony_nc_events)
 918                 for (evmap = sony_nc_events; evmap->event; evmap++) {
 919                         if (evmap->data == ev) {
 920                                 ev = evmap->event;
 921                                 break;
 922                         }
 923                 }
 924
 925         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 926         sony_laptop_report_input_event(ev);
 927         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 928 }
 929
 930 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 931                                       void *context, void **return_value)
 932 {
 933         struct acpi_namespace_node *node;
 934         union acpi_operand_object *operand;
 935
 936         node = (struct acpi_namespace_node *)handle;
 937         operand = (union acpi_operand_object *)node->object;
 938
 939         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 940                (u32) operand->method.param_count);
 941
 942         return AE_OK;
 943 }
 944
 945 /*
 946  * ACPI device
 947  */
 948 static int sony_nc_resume(struct acpi_device *device)
 949 {
 950         struct sony_nc_value *item;
 951
 952         for (item = sony_nc_values; item->name; item++) {
 953                 int ret;
 954
 955                 if (!item->valid)
 956                         continue;
 957                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 958                                        item->value, NULL);
 959                 if (ret < 0) {
 960                         printk("%s: %d\n", __FUNCTION__, ret);
 961                         break;
 962                 }
 963         }
 964
 965         /* set the last requested brightness level */
 966         if (sony_backlight_device &&
 967                         !sony_backlight_update_status(sony_backlight_device))
 968                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
 969
 970         /* re-initialize models with specific requirements */
 971         dmi_check_system(sony_nc_ids);
 972
 973         return 0;
 974 }
 975
 976 static int sony_nc_add(struct acpi_device *device)
 977 {
 978         acpi_status status;
 979         int result = 0;
 980         acpi_handle handle;
 981         struct sony_nc_value *item;
 982
 983         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 984                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 985
 986         sony_nc_acpi_device = device;
 987         strcpy(acpi_device_class(device), "sony/hotkey");
 988
 989         sony_nc_acpi_handle = device->handle;
 990
 991         /* read device status */
 992         result = acpi_bus_get_status(device);
 993         /* bail IFF the above call was successful and the device is not present */
 994         if (!result && !device->status.present) {
 995                 dprintk("Device not present\n");
 996                 result = -ENODEV;
 997                 goto outwalk;
 998         }
 999
1000         if (debug) {
1001                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1002                                              1, sony_walk_callback, NULL, NULL);
1003                 if (ACPI_FAILURE(status)) {
1004                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1005                         result = -ENODEV;
1006                         goto outwalk;
1007                 }
1008         }
1009
1010         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1011          * should be respected as we already checked for the device presence above */
1012         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1013                 dprintk("Invoking _INI\n");
1014                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1015                                                 NULL, NULL)))
1016                         dprintk("_INI Method failed\n");
1017         }
1018
1019         /* setup input devices and helper fifo */
1020         result = sony_laptop_setup_input(device);
1021         if (result) {
1022                 printk(KERN_ERR DRV_PFX
1023                                 "Unabe to create input devices.\n");
1024                 goto outwalk;
1025         }
1026
1027         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1028                                              ACPI_DEVICE_NOTIFY,
1029                                              sony_acpi_notify, NULL);
1030         if (ACPI_FAILURE(status)) {
1031                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1032                 result = -ENODEV;
1033                 goto outinput;
1034         }
1035
1036         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1037                 sony_backlight_device = backlight_device_register("sony", NULL,
1038                                                                   NULL,
1039                                                                   &sony_backlight_ops);
1040
1041                 if (IS_ERR(sony_backlight_device)) {
1042                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1043                         sony_backlight_device = NULL;
1044                 } else {
1045                         sony_backlight_device->props.brightness =
1046                             sony_backlight_get_brightness
1047                             (sony_backlight_device);
1048                         sony_backlight_device->props.max_brightness =
1049                             SONY_MAX_BRIGHTNESS - 1;
1050                 }
1051
1052         }
1053
1054         /* initialize models with specific requirements */
1055         dmi_check_system(sony_nc_ids);
1056
1057         result = sony_pf_add();
1058         if (result)
1059                 goto outbacklight;
1060
1061         /* create sony_pf sysfs attributes related to the SNC device */
1062         for (item = sony_nc_values; item->name; ++item) {
1063
1064                 if (!debug && item->debug)
1065                         continue;
1066
1067                 /* find the available acpiget as described in the DSDT */
1068                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1069                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1070                                                          *item->acpiget,
1071                                                          &handle))) {
1072                                 dprintk("Found %s getter: %s\n",
1073                                                 item->name, *item->acpiget);
1074                                 item->devattr.attr.mode |= S_IRUGO;
1075                                 break;
1076                         }
1077                 }
1078
1079                 /* find the available acpiset as described in the DSDT */
1080                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1081                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1082                                                          *item->acpiset,
1083                                                          &handle))) {
1084                                 dprintk("Found %s setter: %s\n",
1085                                                 item->name, *item->acpiset);
1086                                 item->devattr.attr.mode |= S_IWUSR;
1087                                 break;
1088                         }
1089                 }
1090
1091                 if (item->devattr.attr.mode != 0) {
1092                         result =
1093                             device_create_file(&sony_pf_device->dev,
1094                                                &item->devattr);
1095                         if (result)
1096                                 goto out_sysfs;
1097                 }
1098         }
1099
1100         return 0;
1101
1102       out_sysfs:
1103         for (item = sony_nc_values; item->name; ++item) {
1104                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1105         }
1106         sony_pf_remove();
1107
1108       outbacklight:
1109         if (sony_backlight_device)
1110                 backlight_device_unregister(sony_backlight_device);
1111
1112         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1113                                             ACPI_DEVICE_NOTIFY,
1114                                             sony_acpi_notify);
1115         if (ACPI_FAILURE(status))
1116                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1117
1118       outinput:
1119         sony_laptop_remove_input();
1120
1121       outwalk:
1122         return result;
1123 }
1124
1125 static int sony_nc_remove(struct acpi_device *device, int type)
1126 {
1127         acpi_status status;
1128         struct sony_nc_value *item;
1129
1130         if (sony_backlight_device)
1131                 backlight_device_unregister(sony_backlight_device);
1132
1133         sony_nc_acpi_device = NULL;
1134
1135         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1136                                             ACPI_DEVICE_NOTIFY,
1137                                             sony_acpi_notify);
1138         if (ACPI_FAILURE(status))
1139                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1140
1141         for (item = sony_nc_values; item->name; ++item) {
1142                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1143         }
1144
1145         sony_pf_remove();
1146         sony_laptop_remove_input();
1147         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1148
1149         return 0;
1150 }
1151
1152 static const struct acpi_device_id sony_device_ids[] = {
1153         {SONY_NC_HID, 0},
1154         {SONY_PIC_HID, 0},
1155         {"", 0},
1156 };
1157 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1158
1159 static const struct acpi_device_id sony_nc_device_ids[] = {
1160         {SONY_NC_HID, 0},
1161         {"", 0},
1162 };
1163
1164 static struct acpi_driver sony_nc_driver = {
1165         .name = SONY_NC_DRIVER_NAME,
1166         .class = SONY_NC_CLASS,
1167         .ids = sony_nc_device_ids,
1168         .owner = THIS_MODULE,
1169         .ops = {
1170                 .add = sony_nc_add,
1171                 .remove = sony_nc_remove,
1172                 .resume = sony_nc_resume,
1173                 },
1174 };
1175
1176 /*********** SPIC (SNY6001) Device ***********/
1177
1178 #define SONYPI_DEVICE_TYPE1     0x00000001
1179 #define SONYPI_DEVICE_TYPE2     0x00000002
1180 #define SONYPI_DEVICE_TYPE3     0x00000004
1181
1182 #define SONYPI_TYPE1_OFFSET     0x04
1183 #define SONYPI_TYPE2_OFFSET     0x12
1184 #define SONYPI_TYPE3_OFFSET     0x12
1185
1186 struct sony_pic_ioport {
1187         struct acpi_resource_io io1;
1188         struct acpi_resource_io io2;
1189         struct list_head        list;
1190 };
1191
1192 struct sony_pic_irq {
1193         struct acpi_resource_irq        irq;
1194         struct list_head                list;
1195 };
1196
1197 struct sony_pic_dev {
1198         int                     model;
1199         u16                     evport_offset;
1200         u8                      camera_power;
1201         u8                      bluetooth_power;
1202         u8                      wwan_power;
1203         struct acpi_device      *acpi_dev;
1204         struct sony_pic_irq     *cur_irq;
1205         struct sony_pic_ioport  *cur_ioport;
1206         struct list_head        interrupts;
1207         struct list_head        ioports;
1208         struct mutex            lock;
1209 };
1210
1211 static struct sony_pic_dev spic_dev = {
1212         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1213         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1214 };
1215
1216 /* Event masks */
1217 #define SONYPI_JOGGER_MASK                      0x00000001
1218 #define SONYPI_CAPTURE_MASK                     0x00000002
1219 #define SONYPI_FNKEY_MASK                       0x00000004
1220 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1221 #define SONYPI_PKEY_MASK                        0x00000010
1222 #define SONYPI_BACK_MASK                        0x00000020
1223 #define SONYPI_HELP_MASK                        0x00000040
1224 #define SONYPI_LID_MASK                         0x00000080
1225 #define SONYPI_ZOOM_MASK                        0x00000100
1226 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1227 #define SONYPI_MEYE_MASK                        0x00000400
1228 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1229 #define SONYPI_BATTERY_MASK                     0x00001000
1230 #define SONYPI_WIRELESS_MASK                    0x00002000
1231
1232 struct sonypi_event {
1233         u8      data;
1234         u8      event;
1235 };
1236
1237 /* The set of possible button release events */
1238 static struct sonypi_event sonypi_releaseev[] = {
1239         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1240         { 0, 0 }
1241 };
1242
1243 /* The set of possible jogger events  */
1244 static struct sonypi_event sonypi_joggerev[] = {
1245         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1246         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1247         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1248         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1249         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1250         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1251         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1252         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1253         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1254         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1255         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1256         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1257         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1258         { 0, 0 }
1259 };
1260
1261 /* The set of possible capture button events */
1262 static struct sonypi_event sonypi_captureev[] = {
1263         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1264         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1265         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1266         { 0, 0 }
1267 };
1268
1269 /* The set of possible fnkeys events */
1270 static struct sonypi_event sonypi_fnkeyev[] = {
1271         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1272         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1273         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1274         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1275         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1276         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1277         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1278         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1279         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1280         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1281         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1282         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1283         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1284         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1285         { 0x21, SONYPI_EVENT_FNKEY_1 },
1286         { 0x22, SONYPI_EVENT_FNKEY_2 },
1287         { 0x31, SONYPI_EVENT_FNKEY_D },
1288         { 0x32, SONYPI_EVENT_FNKEY_E },
1289         { 0x33, SONYPI_EVENT_FNKEY_F },
1290         { 0x34, SONYPI_EVENT_FNKEY_S },
1291         { 0x35, SONYPI_EVENT_FNKEY_B },
1292         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1293         { 0, 0 }
1294 };
1295
1296 /* The set of possible program key events */
1297 static struct sonypi_event sonypi_pkeyev[] = {
1298         { 0x01, SONYPI_EVENT_PKEY_P1 },
1299         { 0x02, SONYPI_EVENT_PKEY_P2 },
1300         { 0x04, SONYPI_EVENT_PKEY_P3 },
1301         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1302         { 0, 0 }
1303 };
1304
1305 /* The set of possible bluetooth events */
1306 static struct sonypi_event sonypi_blueev[] = {
1307         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1308         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1309         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1310         { 0, 0 }
1311 };
1312
1313 /* The set of possible wireless events */
1314 static struct sonypi_event sonypi_wlessev[] = {
1315         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1316         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1317         { 0, 0 }
1318 };
1319
1320 /* The set of possible back button events */
1321 static struct sonypi_event sonypi_backev[] = {
1322         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1323         { 0, 0 }
1324 };
1325
1326 /* The set of possible help button events */
1327 static struct sonypi_event sonypi_helpev[] = {
1328         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1329         { 0, 0 }
1330 };
1331
1332
1333 /* The set of possible lid events */
1334 static struct sonypi_event sonypi_lidev[] = {
1335         { 0x51, SONYPI_EVENT_LID_CLOSED },
1336         { 0x50, SONYPI_EVENT_LID_OPENED },
1337         { 0, 0 }
1338 };
1339
1340 /* The set of possible zoom events */
1341 static struct sonypi_event sonypi_zoomev[] = {
1342         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1343         { 0, 0 }
1344 };
1345
1346 /* The set of possible thumbphrase events */
1347 static struct sonypi_event sonypi_thumbphraseev[] = {
1348         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1349         { 0, 0 }
1350 };
1351
1352 /* The set of possible motioneye camera events */
1353 static struct sonypi_event sonypi_meyeev[] = {
1354         { 0x00, SONYPI_EVENT_MEYE_FACE },
1355         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1356         { 0, 0 }
1357 };
1358
1359 /* The set of possible memorystick events */
1360 static struct sonypi_event sonypi_memorystickev[] = {
1361         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1362         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1363         { 0, 0 }
1364 };
1365
1366 /* The set of possible battery events */
1367 static struct sonypi_event sonypi_batteryev[] = {
1368         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1369         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1370         { 0, 0 }
1371 };
1372
1373 static struct sonypi_eventtypes {
1374         int                     model;
1375         u8                      data;
1376         unsigned long           mask;
1377         struct sonypi_event *   events;
1378 } sony_pic_eventtypes[] = {
1379         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1380         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1381         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1382         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1383         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1384         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1385         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1386         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1387         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1388         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1389
1390         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1391         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1392         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1393         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1394         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1395         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1396         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1397         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1398         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1399         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1400         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1401         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1402         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1403         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1404
1405         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1406         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1407         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1408         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1409         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1410         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1411         { 0 }
1412 };
1413
1414 static int sony_pic_detect_device_type(void)
1415 {
1416         struct pci_dev *pcidev;
1417         int model = 0;
1418
1419         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1420                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1421                 model = SONYPI_DEVICE_TYPE1;
1422
1423         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1424                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1425                 model = SONYPI_DEVICE_TYPE3;
1426
1427         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1428                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1429                 model = SONYPI_DEVICE_TYPE3;
1430
1431         else
1432                 model = SONYPI_DEVICE_TYPE2;
1433
1434         if (pcidev)
1435                 pci_dev_put(pcidev);
1436
1437         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1438                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1439                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1440         return model;
1441 }
1442
1443 #define ITERATIONS_LONG         10000
1444 #define ITERATIONS_SHORT        10
1445 #define wait_on_command(command, iterations) {                          \
1446         unsigned int n = iterations;                                    \
1447         while (--n && (command))                                        \
1448                 udelay(1);                                              \
1449         if (!n)                                                         \
1450                 dprintk("command failed at %s : %s (line %d)\n",        \
1451                                 __FILE__, __FUNCTION__, __LINE__);      \
1452 }
1453
1454 static u8 sony_pic_call1(u8 dev)
1455 {
1456         u8 v1, v2;
1457
1458         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1459                         ITERATIONS_LONG);
1460         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1461         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1462         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1463         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1464         return v2;
1465 }
1466
1467 static u8 sony_pic_call2(u8 dev, u8 fn)
1468 {
1469         u8 v1;
1470
1471         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1472                         ITERATIONS_LONG);
1473         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1474         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1475                         ITERATIONS_LONG);
1476         outb(fn, spic_dev.cur_ioport->io1.minimum);
1477         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1478         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1479         return v1;
1480 }
1481
1482 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1483 {
1484         u8 v1;
1485
1486         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1487         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1488         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1489         outb(fn, spic_dev.cur_ioport->io1.minimum);
1490         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1491         outb(v, spic_dev.cur_ioport->io1.minimum);
1492         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1493         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1494                         dev, fn, v, v1);
1495         return v1;
1496 }
1497
1498 /* camera tests and poweron/poweroff */
1499 #define SONYPI_CAMERA_PICTURE           5
1500 #define SONYPI_CAMERA_CONTROL           0x10
1501
1502 #define SONYPI_CAMERA_BRIGHTNESS                0
1503 #define SONYPI_CAMERA_CONTRAST                  1
1504 #define SONYPI_CAMERA_HUE                       2
1505 #define SONYPI_CAMERA_COLOR                     3
1506 #define SONYPI_CAMERA_SHARPNESS                 4
1507
1508 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1509 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1510 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1511 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1512
1513 /* the rest don't need a loop until not 0xff */
1514 #define SONYPI_CAMERA_AGC                       6
1515 #define SONYPI_CAMERA_AGC_MASK                  0x30
1516 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1517
1518 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1519 #define SONYPI_CAMERA_CONTROL                   0x10
1520
1521 #define SONYPI_CAMERA_STATUS                    7
1522 #define SONYPI_CAMERA_STATUS_READY              0x2
1523 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1524
1525 #define SONYPI_DIRECTION_BACKWARDS              0x4
1526
1527 #define SONYPI_CAMERA_REVISION                  8
1528 #define SONYPI_CAMERA_ROMVERSION                9
1529
1530 static int __sony_pic_camera_ready(void)
1531 {
1532         u8 v;
1533
1534         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1535         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1536 }
1537
1538 static int __sony_pic_camera_off(void)
1539 {
1540         if (!camera) {
1541                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1542                 return -ENODEV;
1543         }
1544
1545         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1546                                 SONYPI_CAMERA_MUTE_MASK),
1547                         ITERATIONS_SHORT);
1548
1549         if (spic_dev.camera_power) {
1550                 sony_pic_call2(0x91, 0);
1551                 spic_dev.camera_power = 0;
1552         }
1553         return 0;
1554 }
1555
1556 static int __sony_pic_camera_on(void)
1557 {
1558         int i, j, x;
1559
1560         if (!camera) {
1561                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1562                 return -ENODEV;
1563         }
1564
1565         if (spic_dev.camera_power)
1566                 return 0;
1567
1568         for (j = 5; j > 0; j--) {
1569
1570                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1571                         msleep(10);
1572                 sony_pic_call1(0x93);
1573
1574                 for (i = 400; i > 0; i--) {
1575                         if (__sony_pic_camera_ready())
1576                                 break;
1577                         msleep(10);
1578                 }
1579                 if (i)
1580                         break;
1581         }
1582
1583         if (j == 0) {
1584                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1585                 return -ENODEV;
1586         }
1587
1588         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1589                                 0x5a),
1590                         ITERATIONS_SHORT);
1591
1592         spic_dev.camera_power = 1;
1593         return 0;
1594 }
1595
1596 /* External camera command (exported to the motion eye v4l driver) */
1597 int sony_pic_camera_command(int command, u8 value)
1598 {
1599         if (!camera)
1600                 return -EIO;
1601
1602         mutex_lock(&spic_dev.lock);
1603
1604         switch (command) {
1605         case SONY_PIC_COMMAND_SETCAMERA:
1606                 if (value)
1607                         __sony_pic_camera_on();
1608                 else
1609                         __sony_pic_camera_off();
1610                 break;
1611         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1612                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1613                                 ITERATIONS_SHORT);
1614                 break;
1615         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1616                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1617                                 ITERATIONS_SHORT);
1618                 break;
1619         case SONY_PIC_COMMAND_SETCAMERAHUE:
1620                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1621                                 ITERATIONS_SHORT);
1622                 break;
1623         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1624                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1625                                 ITERATIONS_SHORT);
1626                 break;
1627         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1628                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1629                                 ITERATIONS_SHORT);
1630                 break;
1631         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1632                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1633                                 ITERATIONS_SHORT);
1634                 break;
1635         case SONY_PIC_COMMAND_SETCAMERAAGC:
1636                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1637                                 ITERATIONS_SHORT);
1638                 break;
1639         default:
1640                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1641                        command);
1642                 break;
1643         }
1644         mutex_unlock(&spic_dev.lock);
1645         return 0;
1646 }
1647 EXPORT_SYMBOL(sony_pic_camera_command);
1648
1649 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1650 static void sony_pic_set_wwanpower(u8 state)
1651 {
1652         state = !!state;
1653         mutex_lock(&spic_dev.lock);
1654         if (spic_dev.wwan_power == state) {
1655                 mutex_unlock(&spic_dev.lock);
1656                 return;
1657         }
1658         sony_pic_call2(0xB0, state);
1659         spic_dev.wwan_power = state;
1660         mutex_unlock(&spic_dev.lock);
1661 }
1662
1663 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1664                 struct device_attribute *attr,
1665                 const char *buffer, size_t count)
1666 {
1667         unsigned long value;
1668         if (count > 31)
1669                 return -EINVAL;
1670
1671         value = simple_strtoul(buffer, NULL, 10);
1672         sony_pic_set_wwanpower(value);
1673
1674         return count;
1675 }
1676
1677 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1678                 struct device_attribute *attr, char *buffer)
1679 {
1680         ssize_t count;
1681         mutex_lock(&spic_dev.lock);
1682         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1683         mutex_unlock(&spic_dev.lock);
1684         return count;
1685 }
1686
1687 /* bluetooth subsystem power state */
1688 static void __sony_pic_set_bluetoothpower(u8 state)
1689 {
1690         state = !!state;
1691         if (spic_dev.bluetooth_power == state)
1692                 return;
1693         sony_pic_call2(0x96, state);
1694         sony_pic_call1(0x82);
1695         spic_dev.bluetooth_power = state;
1696 }
1697
1698 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1699                 struct device_attribute *attr,
1700                 const char *buffer, size_t count)
1701 {
1702         unsigned long value;
1703         if (count > 31)
1704                 return -EINVAL;
1705
1706         value = simple_strtoul(buffer, NULL, 10);
1707         mutex_lock(&spic_dev.lock);
1708         __sony_pic_set_bluetoothpower(value);
1709         mutex_unlock(&spic_dev.lock);
1710
1711         return count;
1712 }
1713
1714 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1715                 struct device_attribute *attr, char *buffer)
1716 {
1717         ssize_t count = 0;
1718         mutex_lock(&spic_dev.lock);
1719         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1720         mutex_unlock(&spic_dev.lock);
1721         return count;
1722 }
1723
1724 /* fan speed */
1725 /* FAN0 information (reverse engineered from ACPI tables) */
1726 #define SONY_PIC_FAN0_STATUS    0x93
1727 static int sony_pic_set_fanspeed(unsigned long value)
1728 {
1729         return ec_write(SONY_PIC_FAN0_STATUS, value);
1730 }
1731
1732 static int sony_pic_get_fanspeed(u8 *value)
1733 {
1734         return ec_read(SONY_PIC_FAN0_STATUS, value);
1735 }
1736
1737 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1738                 struct device_attribute *attr,
1739                 const char *buffer, size_t count)
1740 {
1741         unsigned long value;
1742         if (count > 31)
1743                 return -EINVAL;
1744
1745         value = simple_strtoul(buffer, NULL, 10);
1746         if (sony_pic_set_fanspeed(value))
1747                 return -EIO;
1748
1749         return count;
1750 }
1751
1752 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1753                 struct device_attribute *attr, char *buffer)
1754 {
1755         u8 value = 0;
1756         if (sony_pic_get_fanspeed(&value))
1757                 return -EIO;
1758
1759         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1760 }
1761
1762 #define SPIC_ATTR(_name, _mode)                                 \
1763 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1764                 _mode, sony_pic_## _name ##_show,               \
1765                 sony_pic_## _name ##_store)
1766
1767 static SPIC_ATTR(bluetoothpower, 0644);
1768 static SPIC_ATTR(wwanpower, 0644);
1769 static SPIC_ATTR(fanspeed, 0644);
1770
1771 static struct attribute *spic_attributes[] = {
1772         &spic_attr_bluetoothpower.attr,
1773         &spic_attr_wwanpower.attr,
1774         &spic_attr_fanspeed.attr,
1775         NULL
1776 };
1777
1778 static struct attribute_group spic_attribute_group = {
1779         .attrs = spic_attributes
1780 };
1781
1782 /******** SONYPI compatibility **********/
1783 #ifdef CONFIG_SONYPI_COMPAT
1784
1785 /* battery / brightness / temperature  addresses */
1786 #define SONYPI_BAT_FLAGS        0x81
1787 #define SONYPI_LCD_LIGHT        0x96
1788 #define SONYPI_BAT1_PCTRM       0xa0
1789 #define SONYPI_BAT1_LEFT        0xa2
1790 #define SONYPI_BAT1_MAXRT       0xa4
1791 #define SONYPI_BAT2_PCTRM       0xa8
1792 #define SONYPI_BAT2_LEFT        0xaa
1793 #define SONYPI_BAT2_MAXRT       0xac
1794 #define SONYPI_BAT1_MAXTK       0xb0
1795 #define SONYPI_BAT1_FULL        0xb2
1796 #define SONYPI_BAT2_MAXTK       0xb8
1797 #define SONYPI_BAT2_FULL        0xba
1798 #define SONYPI_TEMP_STATUS      0xC1
1799
1800 struct sonypi_compat_s {
1801         struct fasync_struct    *fifo_async;
1802         struct kfifo            *fifo;
1803         spinlock_t              fifo_lock;
1804         wait_queue_head_t       fifo_proc_list;
1805         atomic_t                open_count;
1806 };
1807 static struct sonypi_compat_s sonypi_compat = {
1808         .open_count = ATOMIC_INIT(0),
1809 };
1810
1811 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1812 {
1813         int retval;
1814
1815         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1816         if (retval < 0)
1817                 return retval;
1818         return 0;
1819 }
1820
1821 static int sonypi_misc_release(struct inode *inode, struct file *file)
1822 {
1823         sonypi_misc_fasync(-1, file, 0);
1824         atomic_dec(&sonypi_compat.open_count);
1825         return 0;
1826 }
1827
1828 static int sonypi_misc_open(struct inode *inode, struct file *file)
1829 {
1830         /* Flush input queue on first open */
1831         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1832                 kfifo_reset(sonypi_compat.fifo);
1833         return 0;
1834 }
1835
1836 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1837                                 size_t count, loff_t *pos)
1838 {
1839         ssize_t ret;
1840         unsigned char c;
1841
1842         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1843             (file->f_flags & O_NONBLOCK))
1844                 return -EAGAIN;
1845
1846         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1847                                        kfifo_len(sonypi_compat.fifo) != 0);
1848         if (ret)
1849                 return ret;
1850
1851         while (ret < count &&
1852                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1853                 if (put_user(c, buf++))
1854                         return -EFAULT;
1855                 ret++;
1856         }
1857
1858         if (ret > 0) {
1859                 struct inode *inode = file->f_path.dentry->d_inode;
1860                 inode->i_atime = current_fs_time(inode->i_sb);
1861         }
1862
1863         return ret;
1864 }
1865
1866 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1867 {
1868         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1869         if (kfifo_len(sonypi_compat.fifo))
1870                 return POLLIN | POLLRDNORM;
1871         return 0;
1872 }
1873
1874 static int ec_read16(u8 addr, u16 *value)
1875 {
1876         u8 val_lb, val_hb;
1877         if (ec_read(addr, &val_lb))
1878                 return -1;
1879         if (ec_read(addr + 1, &val_hb))
1880                 return -1;
1881         *value = val_lb | (val_hb << 8);
1882         return 0;
1883 }
1884
1885 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1886                              unsigned int cmd, unsigned long arg)
1887 {
1888         int ret = 0;
1889         void __user *argp = (void __user *)arg;
1890         u8 val8;
1891         u16 val16;
1892         int value;
1893
1894         mutex_lock(&spic_dev.lock);
1895         switch (cmd) {
1896         case SONYPI_IOCGBRT:
1897                 if (sony_backlight_device == NULL) {
1898                         ret = -EIO;
1899                         break;
1900                 }
1901                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1902                         ret = -EIO;
1903                         break;
1904                 }
1905                 val8 = ((value & 0xff) - 1) << 5;
1906                 if (copy_to_user(argp, &val8, sizeof(val8)))
1907                                 ret = -EFAULT;
1908                 break;
1909         case SONYPI_IOCSBRT:
1910                 if (sony_backlight_device == NULL) {
1911                         ret = -EIO;
1912                         break;
1913                 }
1914                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1915                         ret = -EFAULT;
1916                         break;
1917                 }
1918                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1919                                 (val8 >> 5) + 1, NULL)) {
1920                         ret = -EIO;
1921                         break;
1922                 }
1923                 /* sync the backlight device status */
1924                 sony_backlight_device->props.brightness =
1925                     sony_backlight_get_brightness(sony_backlight_device);
1926                 break;
1927         case SONYPI_IOCGBAT1CAP:
1928                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1929                         ret = -EIO;
1930                         break;
1931                 }
1932                 if (copy_to_user(argp, &val16, sizeof(val16)))
1933                         ret = -EFAULT;
1934                 break;
1935         case SONYPI_IOCGBAT1REM:
1936                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1937                         ret = -EIO;
1938                         break;
1939                 }
1940                 if (copy_to_user(argp, &val16, sizeof(val16)))
1941                         ret = -EFAULT;
1942                 break;
1943         case SONYPI_IOCGBAT2CAP:
1944                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1945                         ret = -EIO;
1946                         break;
1947                 }
1948                 if (copy_to_user(argp, &val16, sizeof(val16)))
1949                         ret = -EFAULT;
1950                 break;
1951         case SONYPI_IOCGBAT2REM:
1952                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1953                         ret = -EIO;
1954                         break;
1955                 }
1956                 if (copy_to_user(argp, &val16, sizeof(val16)))
1957                         ret = -EFAULT;
1958                 break;
1959         case SONYPI_IOCGBATFLAGS:
1960                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1961                         ret = -EIO;
1962                         break;
1963                 }
1964                 val8 &= 0x07;
1965                 if (copy_to_user(argp, &val8, sizeof(val8)))
1966                         ret = -EFAULT;
1967                 break;
1968         case SONYPI_IOCGBLUE:
1969                 val8 = spic_dev.bluetooth_power;
1970                 if (copy_to_user(argp, &val8, sizeof(val8)))
1971                         ret = -EFAULT;
1972                 break;
1973         case SONYPI_IOCSBLUE:
1974                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1975                         ret = -EFAULT;
1976                         break;
1977                 }
1978                 __sony_pic_set_bluetoothpower(val8);
1979                 break;
1980         /* FAN Controls */
1981         case SONYPI_IOCGFAN:
1982                 if (sony_pic_get_fanspeed(&val8)) {
1983                         ret = -EIO;
1984                         break;
1985                 }
1986                 if (copy_to_user(argp, &val8, sizeof(val8)))
1987                         ret = -EFAULT;
1988                 break;
1989         case SONYPI_IOCSFAN:
1990                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1991                         ret = -EFAULT;
1992                         break;
1993                 }
1994                 if (sony_pic_set_fanspeed(val8))
1995                         ret = -EIO;
1996                 break;
1997         /* GET Temperature (useful under APM) */
1998         case SONYPI_IOCGTEMP:
1999                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2000                         ret = -EIO;
2001                         break;
2002                 }
2003                 if (copy_to_user(argp, &val8, sizeof(val8)))
2004                         ret = -EFAULT;
2005                 break;
2006         default:
2007                 ret = -EINVAL;
2008         }
2009         mutex_unlock(&spic_dev.lock);
2010         return ret;
2011 }
2012
2013 static const struct file_operations sonypi_misc_fops = {
2014         .owner          = THIS_MODULE,
2015         .read           = sonypi_misc_read,
2016         .poll           = sonypi_misc_poll,
2017         .open           = sonypi_misc_open,
2018         .release        = sonypi_misc_release,
2019         .fasync         = sonypi_misc_fasync,
2020         .ioctl          = sonypi_misc_ioctl,
2021 };
2022
2023 static struct miscdevice sonypi_misc_device = {
2024         .minor          = MISC_DYNAMIC_MINOR,
2025         .name           = "sonypi",
2026         .fops           = &sonypi_misc_fops,
2027 };
2028
2029 static void sonypi_compat_report_event(u8 event)
2030 {
2031         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2032         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2033         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2034 }
2035
2036 static int sonypi_compat_init(void)
2037 {
2038         int error;
2039
2040         spin_lock_init(&sonypi_compat.fifo_lock);
2041         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2042                                          &sonypi_compat.fifo_lock);
2043         if (IS_ERR(sonypi_compat.fifo)) {
2044                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2045                 return PTR_ERR(sonypi_compat.fifo);
2046         }
2047
2048         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2049
2050         if (minor != -1)
2051                 sonypi_misc_device.minor = minor;
2052         error = misc_register(&sonypi_misc_device);
2053         if (error) {
2054                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2055                 goto err_free_kfifo;
2056         }
2057         if (minor == -1)
2058                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2059                        sonypi_misc_device.minor);
2060
2061         return 0;
2062
2063 err_free_kfifo:
2064         kfifo_free(sonypi_compat.fifo);
2065         return error;
2066 }
2067
2068 static void sonypi_compat_exit(void)
2069 {
2070         misc_deregister(&sonypi_misc_device);
2071         kfifo_free(sonypi_compat.fifo);
2072 }
2073 #else
2074 static int sonypi_compat_init(void) { return 0; }
2075 static void sonypi_compat_exit(void) { }
2076 static void sonypi_compat_report_event(u8 event) { }
2077 #endif /* CONFIG_SONYPI_COMPAT */
2078
2079 /*
2080  * ACPI callbacks
2081  */
2082 static acpi_status
2083 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2084 {
2085         u32 i;
2086         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2087
2088         switch (resource->type) {
2089         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2090                 {
2091                         /* start IO enumeration */
2092                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2093                         if (!ioport)
2094                                 return AE_ERROR;
2095
2096                         list_add(&ioport->list, &dev->ioports);
2097                         return AE_OK;
2098                 }
2099
2100         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2101                 /* end IO enumeration */
2102                 return AE_OK;
2103
2104         case ACPI_RESOURCE_TYPE_IRQ:
2105                 {
2106                         struct acpi_resource_irq *p = &resource->data.irq;
2107                         struct sony_pic_irq *interrupt = NULL;
2108                         if (!p || !p->interrupt_count) {
2109                                 /*
2110                                  * IRQ descriptors may have no IRQ# bits set,
2111                                  * particularly those those w/ _STA disabled
2112                                  */
2113                                 dprintk("Blank IRQ resource\n");
2114                                 return AE_OK;
2115                         }
2116                         for (i = 0; i < p->interrupt_count; i++) {
2117                                 if (!p->interrupts[i]) {
2118                                         printk(KERN_WARNING DRV_PFX
2119                                                         "Invalid IRQ %d\n",
2120                                                         p->interrupts[i]);
2121                                         continue;
2122                                 }
2123                                 interrupt = kzalloc(sizeof(*interrupt),
2124                                                 GFP_KERNEL);
2125                                 if (!interrupt)
2126                                         return AE_ERROR;
2127
2128                                 list_add(&interrupt->list, &dev->interrupts);
2129                                 interrupt->irq.triggering = p->triggering;
2130                                 interrupt->irq.polarity = p->polarity;
2131                                 interrupt->irq.sharable = p->sharable;
2132                                 interrupt->irq.interrupt_count = 1;
2133                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2134                         }
2135                         return AE_OK;
2136                 }
2137         case ACPI_RESOURCE_TYPE_IO:
2138                 {
2139                         struct acpi_resource_io *io = &resource->data.io;
2140                         struct sony_pic_ioport *ioport =
2141                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2142                         if (!io) {
2143                                 dprintk("Blank IO resource\n");
2144                                 return AE_OK;
2145                         }
2146
2147                         if (!ioport->io1.minimum) {
2148                                 memcpy(&ioport->io1, io, sizeof(*io));
2149                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2150                                                 ioport->io1.address_length);
2151                         }
2152                         else if (!ioport->io2.minimum) {
2153                                 memcpy(&ioport->io2, io, sizeof(*io));
2154                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2155                                                 ioport->io2.address_length);
2156                         }
2157                         else {
2158                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2159                                 return AE_ERROR;
2160                         }
2161                         return AE_OK;
2162                 }
2163         default:
2164                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2165                                 resource->type);
2166
2167         case ACPI_RESOURCE_TYPE_END_TAG:
2168                 return AE_OK;
2169         }
2170         return AE_CTRL_TERMINATE;
2171 }
2172
2173 static int sony_pic_possible_resources(struct acpi_device *device)
2174 {
2175         int result = 0;
2176         acpi_status status = AE_OK;
2177
2178         if (!device)
2179                 return -EINVAL;
2180
2181         /* get device status */
2182         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2183         dprintk("Evaluating _STA\n");
2184         result = acpi_bus_get_status(device);
2185         if (result) {
2186                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2187                 goto end;
2188         }
2189
2190         if (!device->status.enabled)
2191                 dprintk("Device disabled\n");
2192         else
2193                 dprintk("Device enabled\n");
2194
2195         /*
2196          * Query and parse 'method'
2197          */
2198         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2199         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2200                         sony_pic_read_possible_resource, &spic_dev);
2201         if (ACPI_FAILURE(status)) {
2202                 printk(KERN_WARNING DRV_PFX
2203                                 "Failure evaluating %s\n",
2204                                 METHOD_NAME__PRS);
2205                 result = -ENODEV;
2206         }
2207 end:
2208         return result;
2209 }
2210
2211 /*
2212  *  Disable the spic device by calling its _DIS method
2213  */
2214 static int sony_pic_disable(struct acpi_device *device)
2215 {
2216         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2217                         "_DIS", NULL, NULL)))
2218                 return -ENXIO;
2219
2220         dprintk("Device disabled\n");
2221         return 0;
2222 }
2223
2224
2225 /*
2226  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2227  *
2228  *  Call _SRS to set current resources
2229  */
2230 static int sony_pic_enable(struct acpi_device *device,
2231                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2232 {
2233         acpi_status status;
2234         int result = 0;
2235         /* Type 1 resource layout is:
2236          *    IO
2237          *    IO
2238          *    IRQNoFlags
2239          *    End
2240          *
2241          * Type 2 and 3 resource layout is:
2242          *    IO
2243          *    IRQNoFlags
2244          *    End
2245          */
2246         struct {
2247                 struct acpi_resource res1;
2248                 struct acpi_resource res2;
2249                 struct acpi_resource res3;
2250                 struct acpi_resource res4;
2251         } *resource;
2252         struct acpi_buffer buffer = { 0, NULL };
2253
2254         if (!ioport || !irq)
2255                 return -EINVAL;
2256
2257         /* init acpi_buffer */
2258         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2259         if (!resource)
2260                 return -ENOMEM;
2261
2262         buffer.length = sizeof(*resource) + 1;
2263         buffer.pointer = resource;
2264
2265         /* setup Type 1 resources */
2266         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2267
2268                 /* setup io resources */
2269                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2270                 resource->res1.length = sizeof(struct acpi_resource);
2271                 memcpy(&resource->res1.data.io, &ioport->io1,
2272                                 sizeof(struct acpi_resource_io));
2273
2274                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2275                 resource->res2.length = sizeof(struct acpi_resource);
2276                 memcpy(&resource->res2.data.io, &ioport->io2,
2277                                 sizeof(struct acpi_resource_io));
2278
2279                 /* setup irq resource */
2280                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2281                 resource->res3.length = sizeof(struct acpi_resource);
2282                 memcpy(&resource->res3.data.irq, &irq->irq,
2283                                 sizeof(struct acpi_resource_irq));
2284                 /* we requested a shared irq */
2285                 resource->res3.data.irq.sharable = ACPI_SHARED;
2286
2287                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2288
2289         }
2290         /* setup Type 2/3 resources */
2291         else {
2292                 /* setup io resource */
2293                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2294                 resource->res1.length = sizeof(struct acpi_resource);
2295                 memcpy(&resource->res1.data.io, &ioport->io1,
2296                                 sizeof(struct acpi_resource_io));
2297
2298                 /* setup irq resource */
2299                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2300                 resource->res2.length = sizeof(struct acpi_resource);
2301                 memcpy(&resource->res2.data.irq, &irq->irq,
2302                                 sizeof(struct acpi_resource_irq));
2303                 /* we requested a shared irq */
2304                 resource->res2.data.irq.sharable = ACPI_SHARED;
2305
2306                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2307         }
2308
2309         /* Attempt to set the resource */
2310         dprintk("Evaluating _SRS\n");
2311         status = acpi_set_current_resources(device->handle, &buffer);
2312
2313         /* check for total failure */
2314         if (ACPI_FAILURE(status)) {
2315                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2316                 result = -ENODEV;
2317                 goto end;
2318         }
2319
2320         /* Necessary device initializations calls (from sonypi) */
2321         sony_pic_call1(0x82);
2322         sony_pic_call2(0x81, 0xff);
2323         sony_pic_call1(compat ? 0x92 : 0x82);
2324
2325 end:
2326         kfree(resource);
2327         return result;
2328 }
2329
2330 /*****************
2331  *
2332  * ISR: some event is available
2333  *
2334  *****************/
2335 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2336 {
2337         int i, j;
2338         u8 ev = 0;
2339         u8 data_mask = 0;
2340         u8 device_event = 0;
2341
2342         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2343
2344         ev = inb_p(dev->cur_ioport->io1.minimum);
2345         if (dev->cur_ioport->io2.minimum)
2346                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2347         else
2348                 data_mask = inb_p(dev->cur_ioport->io1.minimum + dev->evport_offset);
2349
2350         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2351                         ev, data_mask, dev->cur_ioport->io1.minimum, dev->evport_offset);
2352
2353         if (ev == 0x00 || ev == 0xff)
2354                 return IRQ_HANDLED;
2355
2356         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2357
2358                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2359                         continue;
2360
2361                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2362                     sony_pic_eventtypes[i].data)
2363                         continue;
2364
2365                 if (!(mask & sony_pic_eventtypes[i].mask))
2366                         continue;
2367
2368                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2369                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2370                                 device_event =
2371                                         sony_pic_eventtypes[i].events[j].event;
2372                                 goto found;
2373                         }
2374                 }
2375         }
2376         return IRQ_HANDLED;
2377
2378 found:
2379         sony_laptop_report_input_event(device_event);
2380         acpi_bus_generate_proc_event(spic_dev.acpi_dev, 1, device_event);
2381         sonypi_compat_report_event(device_event);
2382
2383         return IRQ_HANDLED;
2384 }
2385
2386 /*****************
2387  *
2388  *  ACPI driver
2389  *
2390  *****************/
2391 static int sony_pic_remove(struct acpi_device *device, int type)
2392 {
2393         struct sony_pic_ioport *io, *tmp_io;
2394         struct sony_pic_irq *irq, *tmp_irq;
2395
2396         if (sony_pic_disable(device)) {
2397                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2398                 return -ENXIO;
2399         }
2400
2401         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2402         release_region(spic_dev.cur_ioport->io1.minimum,
2403                         spic_dev.cur_ioport->io1.address_length);
2404         if (spic_dev.cur_ioport->io2.minimum)
2405                 release_region(spic_dev.cur_ioport->io2.minimum,
2406                                 spic_dev.cur_ioport->io2.address_length);
2407
2408         sonypi_compat_exit();
2409
2410         sony_laptop_remove_input();
2411
2412         /* pf attrs */
2413         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2414         sony_pf_remove();
2415
2416         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2417                 list_del(&io->list);
2418                 kfree(io);
2419         }
2420         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2421                 list_del(&irq->list);
2422                 kfree(irq);
2423         }
2424         spic_dev.cur_ioport = NULL;
2425         spic_dev.cur_irq = NULL;
2426
2427         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2428         return 0;
2429 }
2430
2431 static int sony_pic_add(struct acpi_device *device)
2432 {
2433         int result;
2434         struct sony_pic_ioport *io, *tmp_io;
2435         struct sony_pic_irq *irq, *tmp_irq;
2436
2437         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2438                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2439
2440         spic_dev.acpi_dev = device;
2441         strcpy(acpi_device_class(device), "sony/hotkey");
2442         spic_dev.model = sony_pic_detect_device_type();
2443         mutex_init(&spic_dev.lock);
2444
2445         /* model specific characteristics */
2446         switch(spic_dev.model) {
2447                 case SONYPI_DEVICE_TYPE1:
2448                         spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
2449                         break;
2450                 case SONYPI_DEVICE_TYPE3:
2451                         spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
2452                         break;
2453                 case SONYPI_DEVICE_TYPE2:
2454                 default:
2455                         spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
2456                         break;
2457         }
2458
2459         /* read _PRS resources */
2460         result = sony_pic_possible_resources(device);
2461         if (result) {
2462                 printk(KERN_ERR DRV_PFX
2463                                 "Unabe to read possible resources.\n");
2464                 goto err_free_resources;
2465         }
2466
2467         /* setup input devices and helper fifo */
2468         result = sony_laptop_setup_input(device);
2469         if (result) {
2470                 printk(KERN_ERR DRV_PFX
2471                                 "Unabe to create input devices.\n");
2472                 goto err_free_resources;
2473         }
2474
2475         if (sonypi_compat_init())
2476                 goto err_remove_input;
2477
2478         /* request io port */
2479         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2480                 if (request_region(io->io1.minimum, io->io1.address_length,
2481                                         "Sony Programable I/O Device")) {
2482                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2483                                         io->io1.minimum, io->io1.maximum,
2484                                         io->io1.address_length);
2485                         /* Type 1 have 2 ioports */
2486                         if (io->io2.minimum) {
2487                                 if (request_region(io->io2.minimum,
2488                                                 io->io2.address_length,
2489                                                 "Sony Programable I/O Device")) {
2490                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2491                                                         io->io2.minimum, io->io2.maximum,
2492                                                         io->io2.address_length);
2493                                         spic_dev.cur_ioport = io;
2494                                         break;
2495                                 }
2496                                 else {
2497                                         dprintk("Unable to get I/O port2: "
2498                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2499                                                         io->io2.minimum, io->io2.maximum,
2500                                                         io->io2.address_length);
2501                                         release_region(io->io1.minimum,
2502                                                         io->io1.address_length);
2503                                 }
2504                         }
2505                         else {
2506                                 spic_dev.cur_ioport = io;
2507                                 break;
2508                         }
2509                 }
2510         }
2511         if (!spic_dev.cur_ioport) {
2512                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2513                 result = -ENODEV;
2514                 goto err_remove_compat;
2515         }
2516
2517         /* request IRQ */
2518         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2519                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2520                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2521                         dprintk("IRQ: %d - triggering: %d - "
2522                                         "polarity: %d - shr: %d\n",
2523                                         irq->irq.interrupts[0],
2524                                         irq->irq.triggering,
2525                                         irq->irq.polarity,
2526                                         irq->irq.sharable);
2527                         spic_dev.cur_irq = irq;
2528                         break;
2529                 }
2530         }
2531         if (!spic_dev.cur_irq) {
2532                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2533                 result = -ENODEV;
2534                 goto err_release_region;
2535         }
2536
2537         /* set resource status _SRS */
2538         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2539         if (result) {
2540                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2541                 goto err_free_irq;
2542         }
2543
2544         spic_dev.bluetooth_power = -1;
2545         /* create device attributes */
2546         result = sony_pf_add();
2547         if (result)
2548                 goto err_disable_device;
2549
2550         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2551         if (result)
2552                 goto err_remove_pf;
2553
2554         return 0;
2555
2556 err_remove_pf:
2557         sony_pf_remove();
2558
2559 err_disable_device:
2560         sony_pic_disable(device);
2561
2562 err_free_irq:
2563         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2564
2565 err_release_region:
2566         release_region(spic_dev.cur_ioport->io1.minimum,
2567                         spic_dev.cur_ioport->io1.address_length);
2568         if (spic_dev.cur_ioport->io2.minimum)
2569                 release_region(spic_dev.cur_ioport->io2.minimum,
2570                                 spic_dev.cur_ioport->io2.address_length);
2571
2572 err_remove_compat:
2573         sonypi_compat_exit();
2574
2575 err_remove_input:
2576         sony_laptop_remove_input();
2577
2578 err_free_resources:
2579         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2580                 list_del(&io->list);
2581                 kfree(io);
2582         }
2583         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2584                 list_del(&irq->list);
2585                 kfree(irq);
2586         }
2587         spic_dev.cur_ioport = NULL;
2588         spic_dev.cur_irq = NULL;
2589
2590         return result;
2591 }
2592
2593 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2594 {
2595         if (sony_pic_disable(device))
2596                 return -ENXIO;
2597         return 0;
2598 }
2599
2600 static int sony_pic_resume(struct acpi_device *device)
2601 {
2602         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2603         return 0;
2604 }
2605
2606 static const struct acpi_device_id sony_pic_device_ids[] = {
2607         {SONY_PIC_HID, 0},
2608         {"", 0},
2609 };
2610
2611 static struct acpi_driver sony_pic_driver = {
2612         .name = SONY_PIC_DRIVER_NAME,
2613         .class = SONY_PIC_CLASS,
2614         .ids = sony_pic_device_ids,
2615         .owner = THIS_MODULE,
2616         .ops = {
2617                 .add = sony_pic_add,
2618                 .remove = sony_pic_remove,
2619                 .suspend = sony_pic_suspend,
2620                 .resume = sony_pic_resume,
2621                 },
2622 };
2623
2624 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2625         {
2626                 .ident = "Sony Vaio",
2627                 .matches = {
2628                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2629                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2630                 },
2631         },
2632         {
2633                 .ident = "Sony Vaio",
2634                 .matches = {
2635                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2636                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2637                 },
2638         },
2639         { }
2640 };
2641
2642 static int __init sony_laptop_init(void)
2643 {
2644         int result;
2645
2646         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2647                 result = acpi_bus_register_driver(&sony_pic_driver);
2648                 if (result) {
2649                         printk(KERN_ERR DRV_PFX
2650                                         "Unable to register SPIC driver.");
2651                         goto out;
2652                 }
2653         }
2654
2655         result = acpi_bus_register_driver(&sony_nc_driver);
2656         if (result) {
2657                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2658                 goto out_unregister_pic;
2659         }
2660
2661         return 0;
2662
2663 out_unregister_pic:
2664         if (!no_spic)
2665                 acpi_bus_unregister_driver(&sony_pic_driver);
2666 out:
2667         return result;
2668 }
2669
2670 static void __exit sony_laptop_exit(void)
2671 {
2672         acpi_bus_unregister_driver(&sony_nc_driver);
2673         if (!no_spic)
2674                 acpi_bus_unregister_driver(&sony_pic_driver);
2675 }
2676
2677 module_init(sony_laptop_init);
2678 module_exit(sony_laptop_exit);