SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/platform/x86/sony-laptop.c

   1 /*
   2  * ACPI Sony Notebook Control Driver (SNC and SPIC)
   3  *
   4  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   5  * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
   6  *
   7  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   8  * which are copyrighted by their respective authors.
   9  *
  10  * The SNY6001 driver part is based on the sonypi driver which includes
  11  * material from:
  12  *
  13  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  14  *
  15  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  16  *
  17  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
  18  *
  19  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  20  *
  21  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  22  *
  23  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  24  *
  25  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  26  *
  27  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  28  *
  29  * This program is free software; you can redistribute it and/or modify
  30  * it under the terms of the GNU General Public License as published by
  31  * the Free Software Foundation; either version 2 of the License, or
  32  * (at your option) any later version.
  33  *
  34  * This program is distributed in the hope that it will be useful,
  35  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  36  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  37  * GNU General Public License for more details.
  38  *
  39  * You should have received a copy of the GNU General Public License
  40  * along with this program; if not, write to the Free Software
  41  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  42  *
  43  */
  44
  45 #include <linux/kernel.h>
  46 #include <linux/module.h>
  47 #include <linux/moduleparam.h>
  48 #include <linux/init.h>
  49 #include <linux/smp_lock.h>
  50 #include <linux/types.h>
  51 #include <linux/backlight.h>
  52 #include <linux/platform_device.h>
  53 #include <linux/err.h>
  54 #include <linux/dmi.h>
  55 #include <linux/pci.h>
  56 #include <linux/interrupt.h>
  57 #include <linux/delay.h>
  58 #include <linux/input.h>
  59 #include <linux/kfifo.h>
  60 #include <linux/workqueue.h>
  61 #include <linux/acpi.h>
  62 #include <acpi/acpi_drivers.h>
  63 #include <acpi/acpi_bus.h>
  64 #include <asm/uaccess.h>
  65 #include <linux/sonypi.h>
  66 #include <linux/sony-laptop.h>
  67 #ifdef CONFIG_SONYPI_COMPAT
  68 #include <linux/poll.h>
  69 #include <linux/miscdevice.h>
  70 #endif
  71
  72 #define DRV_PFX                 "sony-laptop: "
  73 #define dprintk(msg...)         do {                    \
  74         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  75 } while (0)
  76
  77 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  78
  79 #define SONY_NC_CLASS           "sony-nc"
  80 #define SONY_NC_HID             "SNY5001"
  81 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  82
  83 #define SONY_PIC_CLASS          "sony-pic"
  84 #define SONY_PIC_HID            "SNY6001"
  85 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  86
  87 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  88 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  89 MODULE_LICENSE("GPL");
  90 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  91
  92 static int debug;
  93 module_param(debug, int, 0);
  94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  95                  "the development of this driver");
  96
  97 static int no_spic;             /* = 0 */
  98 module_param(no_spic, int, 0444);
  99 MODULE_PARM_DESC(no_spic,
 100                  "set this if you don't want to enable the SPIC device");
 101
 102 static int compat;              /* = 0 */
 103 module_param(compat, int, 0444);
 104 MODULE_PARM_DESC(compat,
 105                  "set this if you want to enable backward compatibility mode");
 106
 107 static unsigned long mask = 0xffffffff;
 108 module_param(mask, ulong, 0644);
 109 MODULE_PARM_DESC(mask,
 110                  "set this to the mask of event you want to enable (see doc)");
 111
 112 static int camera;              /* = 0 */
 113 module_param(camera, int, 0444);
 114 MODULE_PARM_DESC(camera,
 115                  "set this to 1 to enable Motion Eye camera controls "
 116                  "(only use it if you have a C1VE or C1VN model)");
 117
 118 #ifdef CONFIG_SONYPI_COMPAT
 119 static int minor = -1;
 120 module_param(minor, int, 0);
 121 MODULE_PARM_DESC(minor,
 122                  "minor number of the misc device for the SPIC compatibility code, "
 123                  "default is -1 (automatic)");
 124 #endif
 125
 126 /*********** Input Devices ***********/
 127
 128 #define SONY_LAPTOP_BUF_SIZE    128
 129 struct sony_laptop_input_s {
 130         atomic_t                users;
 131         struct input_dev        *jog_dev;
 132         struct input_dev        *key_dev;
 133         struct kfifo            *fifo;
 134         spinlock_t              fifo_lock;
 135         struct workqueue_struct *wq;
 136 };
 137 static struct sony_laptop_input_s sony_laptop_input = {
 138         .users = ATOMIC_INIT(0),
 139 };
 140
 141 struct sony_laptop_keypress {
 142         struct input_dev *dev;
 143         int key;
 144 };
 145
 146 /* Correspondance table between sonypi events
 147  * and input layer indexes in the keymap
 148  */
 149 static int sony_laptop_input_index[] = {
 150         -1,     /*  0 no event */
 151         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 152         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 153         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 154         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 155         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 156         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 157          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 158          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 159          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 160          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 161          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 162          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 163          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 164          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 165          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 166          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 167         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 168         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 169         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 170         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 171         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 172         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 173         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 174         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 175         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 176         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 177         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 178         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 179         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 180         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 181         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 182         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 183         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 184         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 185         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 186         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 187         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 188         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 189         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 190         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 191         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 192         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 193         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 194         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 195         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 196         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 197         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 198         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 199         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 200         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 201         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 202         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 203         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 204         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 205         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 206         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 207         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 208         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 209         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 210         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 211         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 212         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 213         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 214 };
 215
 216 static int sony_laptop_input_keycode_map[] = {
 217         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 218         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 219         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 220         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 221         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 222         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 223         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 224         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 225         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 226         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 227         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 228         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 229         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 230         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 231         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 232         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 233         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 234         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 235         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 236         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 237         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 238         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 239         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 240         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 241         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 242         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 243         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 244         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 245         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 246         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 247         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 248         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 249         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 250         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 251         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 252         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 253         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 254         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 255         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 256         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 257         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 258         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 259         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 260         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 261         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 262         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 263         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 264         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 265         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 266         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 267         KEY_ZOOMOUT     /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 268 };
 269
 270 /* release buttons after a short delay if pressed */
 271 static void do_sony_laptop_release_key(struct work_struct *work)
 272 {
 273         struct sony_laptop_keypress kp;
 274
 275         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 276                          sizeof(kp)) == sizeof(kp)) {
 277                 msleep(10);
 278                 input_report_key(kp.dev, kp.key, 0);
 279                 input_sync(kp.dev);
 280         }
 281 }
 282 static DECLARE_WORK(sony_laptop_release_key_work,
 283                 do_sony_laptop_release_key);
 284
 285 /* forward event to the input subsystem */
 286 static void sony_laptop_report_input_event(u8 event)
 287 {
 288         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 289         struct input_dev *key_dev = sony_laptop_input.key_dev;
 290         struct sony_laptop_keypress kp = { NULL };
 291
 292         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 293                 /* Nothing, not all VAIOs generate this event */
 294                 return;
 295         }
 296
 297         /* report events */
 298         switch (event) {
 299         /* jog_dev events */
 300         case SONYPI_EVENT_JOGDIAL_UP:
 301         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 302                 input_report_rel(jog_dev, REL_WHEEL, 1);
 303                 input_sync(jog_dev);
 304                 return;
 305
 306         case SONYPI_EVENT_JOGDIAL_DOWN:
 307         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 308                 input_report_rel(jog_dev, REL_WHEEL, -1);
 309                 input_sync(jog_dev);
 310                 return;
 311
 312         /* key_dev events */
 313         case SONYPI_EVENT_JOGDIAL_PRESSED:
 314                 kp.key = BTN_MIDDLE;
 315                 kp.dev = jog_dev;
 316                 break;
 317
 318         default:
 319                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 320                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 321                         break;
 322                 }
 323                 if (sony_laptop_input_index[event] != -1) {
 324                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 325                         if (kp.key != KEY_UNKNOWN)
 326                                 kp.dev = key_dev;
 327                 }
 328                 break;
 329         }
 330
 331         if (kp.dev) {
 332                 input_report_key(kp.dev, kp.key, 1);
 333                 /* we emit the scancode so we can always remap the key */
 334                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 335                 input_sync(kp.dev);
 336                 kfifo_put(sony_laptop_input.fifo,
 337                           (unsigned char *)&kp, sizeof(kp));
 338
 339                 if (!work_pending(&sony_laptop_release_key_work))
 340                         queue_work(sony_laptop_input.wq,
 341                                         &sony_laptop_release_key_work);
 342         } else
 343                 dprintk("unknown input event %.2x\n", event);
 344 }
 345
 346 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 347 {
 348         struct input_dev *jog_dev;
 349         struct input_dev *key_dev;
 350         int i;
 351         int error;
 352
 353         /* don't run again if already initialized */
 354         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 355                 return 0;
 356
 357         /* kfifo */
 358         spin_lock_init(&sony_laptop_input.fifo_lock);
 359         sony_laptop_input.fifo =
 360                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 361                             &sony_laptop_input.fifo_lock);
 362         if (IS_ERR(sony_laptop_input.fifo)) {
 363                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 364                 error = PTR_ERR(sony_laptop_input.fifo);
 365                 goto err_dec_users;
 366         }
 367
 368         /* init workqueue */
 369         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 370         if (!sony_laptop_input.wq) {
 371                 printk(KERN_ERR DRV_PFX
 372                                 "Unabe to create workqueue.\n");
 373                 error = -ENXIO;
 374                 goto err_free_kfifo;
 375         }
 376
 377         /* input keys */
 378         key_dev = input_allocate_device();
 379         if (!key_dev) {
 380                 error = -ENOMEM;
 381                 goto err_destroy_wq;
 382         }
 383
 384         key_dev->name = "Sony Vaio Keys";
 385         key_dev->id.bustype = BUS_ISA;
 386         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 387         key_dev->dev.parent = &acpi_device->dev;
 388
 389         /* Initialize the Input Drivers: special keys */
 390         set_bit(EV_KEY, key_dev->evbit);
 391         set_bit(EV_MSC, key_dev->evbit);
 392         set_bit(MSC_SCAN, key_dev->mscbit);
 393         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 394         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 395         key_dev->keycode = &sony_laptop_input_keycode_map;
 396         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 397                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 398                         set_bit(sony_laptop_input_keycode_map[i],
 399                                 key_dev->keybit);
 400                 }
 401         }
 402
 403         error = input_register_device(key_dev);
 404         if (error)
 405                 goto err_free_keydev;
 406
 407         sony_laptop_input.key_dev = key_dev;
 408
 409         /* jogdial */
 410         jog_dev = input_allocate_device();
 411         if (!jog_dev) {
 412                 error = -ENOMEM;
 413                 goto err_unregister_keydev;
 414         }
 415
 416         jog_dev->name = "Sony Vaio Jogdial";
 417         jog_dev->id.bustype = BUS_ISA;
 418         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 419         key_dev->dev.parent = &acpi_device->dev;
 420
 421         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 422         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 423         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
 424
 425         error = input_register_device(jog_dev);
 426         if (error)
 427                 goto err_free_jogdev;
 428
 429         sony_laptop_input.jog_dev = jog_dev;
 430
 431         return 0;
 432
 433 err_free_jogdev:
 434         input_free_device(jog_dev);
 435
 436 err_unregister_keydev:
 437         input_unregister_device(key_dev);
 438         /* to avoid kref underflow below at input_free_device */
 439         key_dev = NULL;
 440
 441 err_free_keydev:
 442         input_free_device(key_dev);
 443
 444 err_destroy_wq:
 445         destroy_workqueue(sony_laptop_input.wq);
 446
 447 err_free_kfifo:
 448         kfifo_free(sony_laptop_input.fifo);
 449
 450 err_dec_users:
 451         atomic_dec(&sony_laptop_input.users);
 452         return error;
 453 }
 454
 455 static void sony_laptop_remove_input(void)
 456 {
 457         /* cleanup only after the last user has gone */
 458         if (!atomic_dec_and_test(&sony_laptop_input.users))
 459                 return;
 460
 461         /* flush workqueue first */
 462         flush_workqueue(sony_laptop_input.wq);
 463
 464         /* destroy input devs */
 465         input_unregister_device(sony_laptop_input.key_dev);
 466         sony_laptop_input.key_dev = NULL;
 467
 468         if (sony_laptop_input.jog_dev) {
 469                 input_unregister_device(sony_laptop_input.jog_dev);
 470                 sony_laptop_input.jog_dev = NULL;
 471         }
 472
 473         destroy_workqueue(sony_laptop_input.wq);
 474         kfifo_free(sony_laptop_input.fifo);
 475 }
 476
 477 /*********** Platform Device ***********/
 478
 479 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 480 static struct platform_driver sony_pf_driver = {
 481         .driver = {
 482                    .name = "sony-laptop",
 483                    .owner = THIS_MODULE,
 484                    }
 485 };
 486 static struct platform_device *sony_pf_device;
 487
 488 static int sony_pf_add(void)
 489 {
 490         int ret = 0;
 491
 492         /* don't run again if already initialized */
 493         if (atomic_add_return(1, &sony_pf_users) > 1)
 494                 return 0;
 495
 496         ret = platform_driver_register(&sony_pf_driver);
 497         if (ret)
 498                 goto out;
 499
 500         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 501         if (!sony_pf_device) {
 502                 ret = -ENOMEM;
 503                 goto out_platform_registered;
 504         }
 505
 506         ret = platform_device_add(sony_pf_device);
 507         if (ret)
 508                 goto out_platform_alloced;
 509
 510         return 0;
 511
 512       out_platform_alloced:
 513         platform_device_put(sony_pf_device);
 514         sony_pf_device = NULL;
 515       out_platform_registered:
 516         platform_driver_unregister(&sony_pf_driver);
 517       out:
 518         atomic_dec(&sony_pf_users);
 519         return ret;
 520 }
 521
 522 static void sony_pf_remove(void)
 523 {
 524         /* deregister only after the last user has gone */
 525         if (!atomic_dec_and_test(&sony_pf_users))
 526                 return;
 527
 528         platform_device_del(sony_pf_device);
 529         platform_device_put(sony_pf_device);
 530         platform_driver_unregister(&sony_pf_driver);
 531 }
 532
 533 /*********** SNC (SNY5001) Device ***********/
 534
 535 /* the device uses 1-based values, while the backlight subsystem uses
 536    0-based values */
 537 #define SONY_MAX_BRIGHTNESS     8
 538
 539 #define SNC_VALIDATE_IN         0
 540 #define SNC_VALIDATE_OUT        1
 541
 542 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 543                               char *);
 544 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 545                                const char *, size_t);
 546 static int boolean_validate(const int, const int);
 547 static int brightness_default_validate(const int, const int);
 548
 549 struct sony_nc_value {
 550         char *name;             /* name of the entry */
 551         char **acpiget;         /* names of the ACPI get function */
 552         char **acpiset;         /* names of the ACPI set function */
 553         int (*validate)(const int, const int);  /* input/output validation */
 554         int value;              /* current setting */
 555         int valid;              /* Has ever been set */
 556         int debug;              /* active only in debug mode ? */
 557         struct device_attribute devattr;        /* sysfs atribute */
 558 };
 559
 560 #define SNC_HANDLE_NAMES(_name, _values...) \
 561         static char *snc_##_name[] = { _values, NULL }
 562
 563 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 564         { \
 565                 .name           = __stringify(_name), \
 566                 .acpiget        = _getters, \
 567                 .acpiset        = _setters, \
 568                 .validate       = _validate, \
 569                 .debug          = _debug, \
 570                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 571         }
 572
 573 #define SNC_HANDLE_NULL { .name = NULL }
 574
 575 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 576
 577 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 578 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 579
 580 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 581 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 582
 583 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 584 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 585
 586 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 587 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 588
 589 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 590
 591 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 592 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 593
 594 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 595 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 596
 597 SNC_HANDLE_NAMES(PID_get, "GPID");
 598
 599 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 600 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 601
 602 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 603 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 604
 605 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 606 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 607
 608 static struct sony_nc_value sony_nc_values[] = {
 609         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 610                         snc_brightness_def_set, brightness_default_validate, 0),
 611         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 612         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 613         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 614                         boolean_validate, 0),
 615         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 616                         boolean_validate, 1),
 617         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 618                         boolean_validate, 0),
 619         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 620                         boolean_validate, 0),
 621         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 622                         boolean_validate, 0),
 623         /* unknown methods */
 624         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 625         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 626         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 627         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 628         SNC_HANDLE_NULL
 629 };
 630
 631 static acpi_handle sony_nc_acpi_handle;
 632 static struct acpi_device *sony_nc_acpi_device = NULL;
 633
 634 /*
 635  * acpi_evaluate_object wrappers
 636  */
 637 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 638 {
 639         struct acpi_buffer output;
 640         union acpi_object out_obj;
 641         acpi_status status;
 642
 643         output.length = sizeof(out_obj);
 644         output.pointer = &out_obj;
 645
 646         status = acpi_evaluate_object(handle, name, NULL, &output);
 647         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 648                 *result = out_obj.integer.value;
 649                 return 0;
 650         }
 651
 652         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 653
 654         return -1;
 655 }
 656
 657 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 658                             int *result)
 659 {
 660         struct acpi_object_list params;
 661         union acpi_object in_obj;
 662         struct acpi_buffer output;
 663         union acpi_object out_obj;
 664         acpi_status status;
 665
 666         params.count = 1;
 667         params.pointer = &in_obj;
 668         in_obj.type = ACPI_TYPE_INTEGER;
 669         in_obj.integer.value = value;
 670
 671         output.length = sizeof(out_obj);
 672         output.pointer = &out_obj;
 673
 674         status = acpi_evaluate_object(handle, name, &params, &output);
 675         if (status == AE_OK) {
 676                 if (result != NULL) {
 677                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 678                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 679                                        "return type\n");
 680                                 return -1;
 681                         }
 682                         *result = out_obj.integer.value;
 683                 }
 684                 return 0;
 685         }
 686
 687         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 688
 689         return -1;
 690 }
 691
 692 static int sony_find_snc_handle(int handle)
 693 {
 694         int i;
 695         int result;
 696
 697         for (i = 0x20; i < 0x30; i++) {
 698                 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
 699                 if (result == handle)
 700                         return i-0x20;
 701         }
 702
 703         return -1;
 704 }
 705
 706 static int sony_call_snc_handle(int handle, int argument, int *result)
 707 {
 708         int offset = sony_find_snc_handle(handle);
 709
 710         if (offset < 0)
 711                 return -1;
 712
 713         return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
 714                                 result);
 715 }
 716
 717 /*
 718  * sony_nc_values input/output validate functions
 719  */
 720
 721 /* brightness_default_validate:
 722  *
 723  * manipulate input output values to keep consistency with the
 724  * backlight framework for which brightness values are 0-based.
 725  */
 726 static int brightness_default_validate(const int direction, const int value)
 727 {
 728         switch (direction) {
 729                 case SNC_VALIDATE_OUT:
 730                         return value - 1;
 731                 case SNC_VALIDATE_IN:
 732                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 733                                 return value + 1;
 734         }
 735         return -EINVAL;
 736 }
 737
 738 /* boolean_validate:
 739  *
 740  * on input validate boolean values 0/1, on output just pass the
 741  * received value.
 742  */
 743 static int boolean_validate(const int direction, const int value)
 744 {
 745         if (direction == SNC_VALIDATE_IN) {
 746                 if (value != 0 && value != 1)
 747                         return -EINVAL;
 748         }
 749         return value;
 750 }
 751
 752 /*
 753  * Sysfs show/store common to all sony_nc_values
 754  */
 755 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 756                               char *buffer)
 757 {
 758         int value;
 759         struct sony_nc_value *item =
 760             container_of(attr, struct sony_nc_value, devattr);
 761
 762         if (!*item->acpiget)
 763                 return -EIO;
 764
 765         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 766                 return -EIO;
 767
 768         if (item->validate)
 769                 value = item->validate(SNC_VALIDATE_OUT, value);
 770
 771         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 772 }
 773
 774 static ssize_t sony_nc_sysfs_store(struct device *dev,
 775                                struct device_attribute *attr,
 776                                const char *buffer, size_t count)
 777 {
 778         int value;
 779         struct sony_nc_value *item =
 780             container_of(attr, struct sony_nc_value, devattr);
 781
 782         if (!item->acpiset)
 783                 return -EIO;
 784
 785         if (count > 31)
 786                 return -EINVAL;
 787
 788         value = simple_strtoul(buffer, NULL, 10);
 789
 790         if (item->validate)
 791                 value = item->validate(SNC_VALIDATE_IN, value);
 792
 793         if (value < 0)
 794                 return value;
 795
 796         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 797                 return -EIO;
 798         item->value = value;
 799         item->valid = 1;
 800         return count;
 801 }
 802
 803
 804 /*
 805  * Backlight device
 806  */
 807 static int sony_backlight_update_status(struct backlight_device *bd)
 808 {
 809         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 810                                 bd->props.brightness + 1, NULL);
 811 }
 812
 813 static int sony_backlight_get_brightness(struct backlight_device *bd)
 814 {
 815         int value;
 816
 817         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 818                 return 0;
 819         /* brightness levels are 1-based, while backlight ones are 0-based */
 820         return value - 1;
 821 }
 822
 823 static struct backlight_device *sony_backlight_device;
 824 static struct backlight_ops sony_backlight_ops = {
 825         .update_status = sony_backlight_update_status,
 826         .get_brightness = sony_backlight_get_brightness,
 827 };
 828
 829 /*
 830  * New SNC-only Vaios event mapping to driver known keys
 831  */
 832 struct sony_nc_event {
 833         u8      data;
 834         u8      event;
 835 };
 836
 837 static struct sony_nc_event sony_C_events[] = {
 838         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 839         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 840         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 841         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 842         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 843         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 844         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 845         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 846         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 847         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 848         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 849         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 850         { 0, 0 },
 851 };
 852
 853 /*
 854  * ACPI callbacks
 855  */
 856 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 857 {
 858         int i;
 859         u32 ev = event;
 860         int result;
 861
 862         if (ev == 0x92 || ev == 0x90) {
 863                 int origev = ev;
 864                 /* read the key pressed from EC.GECR
 865                  * A call to SN07 with 0x0202 will do it as well respecting
 866                  * the current protocol on different OSes
 867                  *
 868                  * Note: the path for GECR may be
 869                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 870                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 871                  *
 872                  * TODO: we may want to do the same for the older GHKE -need
 873                  *       dmi list- so this snippet may become one more callback.
 874                  */
 875                 if (sony_call_snc_handle(0x100, 0x200, &result))
 876                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 877                 else
 878                         ev = result & 0xFF;
 879
 880                 for (i = 0; sony_C_events[i].data; i++) {
 881                         if (sony_C_events[i].data == ev) {
 882                                 ev = sony_C_events[i].event;
 883                                 break;
 884                         }
 885                 }
 886
 887                 if (!sony_C_events[i].data)
 888                         printk(KERN_INFO DRV_PFX "Unknown event: %x %x\n",
 889                                origev, ev);
 890         }
 891
 892         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 893         sony_laptop_report_input_event(ev);
 894         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 895 }
 896
 897 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 898                                       void *context, void **return_value)
 899 {
 900         struct acpi_device_info *info;
 901         struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
 902
 903         if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) {
 904                 info = buffer.pointer;
 905
 906                 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
 907                         (char *)&info->name, info->param_count);
 908
 909                 kfree(buffer.pointer);
 910         }
 911
 912         return AE_OK;
 913 }
 914
 915 /*
 916  * ACPI device
 917  */
 918 static int sony_nc_function_setup(struct acpi_device *device)
 919 {
 920         int result;
 921
 922         /* Enable all events */
 923         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
 924
 925         /* Setup hotkeys */
 926         sony_call_snc_handle(0x0100, 0, &result);
 927         sony_call_snc_handle(0x0101, 0, &result);
 928         sony_call_snc_handle(0x0102, 0x100, &result);
 929
 930         return 0;
 931 }
 932
 933 static int sony_nc_resume(struct acpi_device *device)
 934 {
 935         struct sony_nc_value *item;
 936         acpi_handle handle;
 937
 938         for (item = sony_nc_values; item->name; item++) {
 939                 int ret;
 940
 941                 if (!item->valid)
 942                         continue;
 943                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 944                                        item->value, NULL);
 945                 if (ret < 0) {
 946                         printk("%s: %d\n", __func__, ret);
 947                         break;
 948                 }
 949         }
 950
 951         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
 952                                          &handle))) {
 953                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
 954                         dprintk("ECON Method failed\n");
 955         }
 956
 957         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
 958                                          &handle))) {
 959                 dprintk("Doing SNC setup\n");
 960                 sony_nc_function_setup(device);
 961         }
 962
 963         /* set the last requested brightness level */
 964         if (sony_backlight_device &&
 965                         !sony_backlight_update_status(sony_backlight_device))
 966                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
 967
 968         return 0;
 969 }
 970
 971 static int sony_nc_add(struct acpi_device *device)
 972 {
 973         acpi_status status;
 974         int result = 0;
 975         acpi_handle handle;
 976         struct sony_nc_value *item;
 977
 978         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 979                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 980
 981         sony_nc_acpi_device = device;
 982         strcpy(acpi_device_class(device), "sony/hotkey");
 983
 984         sony_nc_acpi_handle = device->handle;
 985
 986         /* read device status */
 987         result = acpi_bus_get_status(device);
 988         /* bail IFF the above call was successful and the device is not present */
 989         if (!result && !device->status.present) {
 990                 dprintk("Device not present\n");
 991                 result = -ENODEV;
 992                 goto outwalk;
 993         }
 994
 995         if (debug) {
 996                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
 997                                              1, sony_walk_callback, NULL, NULL);
 998                 if (ACPI_FAILURE(status)) {
 999                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1000                         result = -ENODEV;
1001                         goto outwalk;
1002                 }
1003         }
1004
1005         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1006          * should be respected as we already checked for the device presence above */
1007         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1008                 dprintk("Invoking _INI\n");
1009                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1010                                                 NULL, NULL)))
1011                         dprintk("_INI Method failed\n");
1012         }
1013
1014         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1015                                          &handle))) {
1016                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1017                         dprintk("ECON Method failed\n");
1018         }
1019
1020         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1021                                          &handle))) {
1022                 dprintk("Doing SNC setup\n");
1023                 sony_nc_function_setup(device);
1024         }
1025
1026         /* setup input devices and helper fifo */
1027         result = sony_laptop_setup_input(device);
1028         if (result) {
1029                 printk(KERN_ERR DRV_PFX
1030                                 "Unabe to create input devices.\n");
1031                 goto outwalk;
1032         }
1033
1034         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1035                                              ACPI_DEVICE_NOTIFY,
1036                                              sony_acpi_notify, NULL);
1037         if (ACPI_FAILURE(status)) {
1038                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1039                 result = -ENODEV;
1040                 goto outinput;
1041         }
1042
1043         if (acpi_video_backlight_support()) {
1044                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1045                        "controlled by ACPI video driver\n");
1046         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1047                                                 &handle))) {
1048                 sony_backlight_device = backlight_device_register("sony", NULL,
1049                                                                   NULL,
1050                                                                   &sony_backlight_ops);
1051
1052                 if (IS_ERR(sony_backlight_device)) {
1053                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1054                         sony_backlight_device = NULL;
1055                 } else {
1056                         sony_backlight_device->props.brightness =
1057                             sony_backlight_get_brightness
1058                             (sony_backlight_device);
1059                         sony_backlight_device->props.max_brightness =
1060                             SONY_MAX_BRIGHTNESS - 1;
1061                 }
1062
1063         }
1064
1065         result = sony_pf_add();
1066         if (result)
1067                 goto outbacklight;
1068
1069         /* create sony_pf sysfs attributes related to the SNC device */
1070         for (item = sony_nc_values; item->name; ++item) {
1071
1072                 if (!debug && item->debug)
1073                         continue;
1074
1075                 /* find the available acpiget as described in the DSDT */
1076                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1077                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1078                                                          *item->acpiget,
1079                                                          &handle))) {
1080                                 dprintk("Found %s getter: %s\n",
1081                                                 item->name, *item->acpiget);
1082                                 item->devattr.attr.mode |= S_IRUGO;
1083                                 break;
1084                         }
1085                 }
1086
1087                 /* find the available acpiset as described in the DSDT */
1088                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1089                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1090                                                          *item->acpiset,
1091                                                          &handle))) {
1092                                 dprintk("Found %s setter: %s\n",
1093                                                 item->name, *item->acpiset);
1094                                 item->devattr.attr.mode |= S_IWUSR;
1095                                 break;
1096                         }
1097                 }
1098
1099                 if (item->devattr.attr.mode != 0) {
1100                         result =
1101                             device_create_file(&sony_pf_device->dev,
1102                                                &item->devattr);
1103                         if (result)
1104                                 goto out_sysfs;
1105                 }
1106         }
1107
1108         return 0;
1109
1110       out_sysfs:
1111         for (item = sony_nc_values; item->name; ++item) {
1112                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1113         }
1114         sony_pf_remove();
1115
1116       outbacklight:
1117         if (sony_backlight_device)
1118                 backlight_device_unregister(sony_backlight_device);
1119
1120         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1121                                             ACPI_DEVICE_NOTIFY,
1122                                             sony_acpi_notify);
1123         if (ACPI_FAILURE(status))
1124                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1125
1126       outinput:
1127         sony_laptop_remove_input();
1128
1129       outwalk:
1130         return result;
1131 }
1132
1133 static int sony_nc_remove(struct acpi_device *device, int type)
1134 {
1135         acpi_status status;
1136         struct sony_nc_value *item;
1137
1138         if (sony_backlight_device)
1139                 backlight_device_unregister(sony_backlight_device);
1140
1141         sony_nc_acpi_device = NULL;
1142
1143         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1144                                             ACPI_DEVICE_NOTIFY,
1145                                             sony_acpi_notify);
1146         if (ACPI_FAILURE(status))
1147                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1148
1149         for (item = sony_nc_values; item->name; ++item) {
1150                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1151         }
1152
1153         sony_pf_remove();
1154         sony_laptop_remove_input();
1155         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1156
1157         return 0;
1158 }
1159
1160 static const struct acpi_device_id sony_device_ids[] = {
1161         {SONY_NC_HID, 0},
1162         {SONY_PIC_HID, 0},
1163         {"", 0},
1164 };
1165 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1166
1167 static const struct acpi_device_id sony_nc_device_ids[] = {
1168         {SONY_NC_HID, 0},
1169         {"", 0},
1170 };
1171
1172 static struct acpi_driver sony_nc_driver = {
1173         .name = SONY_NC_DRIVER_NAME,
1174         .class = SONY_NC_CLASS,
1175         .ids = sony_nc_device_ids,
1176         .owner = THIS_MODULE,
1177         .ops = {
1178                 .add = sony_nc_add,
1179                 .remove = sony_nc_remove,
1180                 .resume = sony_nc_resume,
1181                 },
1182 };
1183
1184 /*********** SPIC (SNY6001) Device ***********/
1185
1186 #define SONYPI_DEVICE_TYPE1     0x00000001
1187 #define SONYPI_DEVICE_TYPE2     0x00000002
1188 #define SONYPI_DEVICE_TYPE3     0x00000004
1189 #define SONYPI_DEVICE_TYPE4     0x00000008
1190
1191 #define SONYPI_TYPE1_OFFSET     0x04
1192 #define SONYPI_TYPE2_OFFSET     0x12
1193 #define SONYPI_TYPE3_OFFSET     0x12
1194 #define SONYPI_TYPE4_OFFSET     0x12
1195
1196 struct sony_pic_ioport {
1197         struct acpi_resource_io io1;
1198         struct acpi_resource_io io2;
1199         struct list_head        list;
1200 };
1201
1202 struct sony_pic_irq {
1203         struct acpi_resource_irq        irq;
1204         struct list_head                list;
1205 };
1206
1207 struct sonypi_eventtypes {
1208         u8                      data;
1209         unsigned long           mask;
1210         struct sonypi_event     *events;
1211 };
1212
1213 struct device_ctrl {
1214         int                             model;
1215         int                             (*handle_irq)(const u8, const u8);
1216         u16                             evport_offset;
1217         u8                              has_camera;
1218         u8                              has_bluetooth;
1219         u8                              has_wwan;
1220         struct sonypi_eventtypes        *event_types;
1221 };
1222
1223 struct sony_pic_dev {
1224         struct device_ctrl      *control;
1225         struct acpi_device      *acpi_dev;
1226         struct sony_pic_irq     *cur_irq;
1227         struct sony_pic_ioport  *cur_ioport;
1228         struct list_head        interrupts;
1229         struct list_head        ioports;
1230         struct mutex            lock;
1231         u8                      camera_power;
1232         u8                      bluetooth_power;
1233         u8                      wwan_power;
1234 };
1235
1236 static struct sony_pic_dev spic_dev = {
1237         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1238         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1239 };
1240
1241 /* Event masks */
1242 #define SONYPI_JOGGER_MASK                      0x00000001
1243 #define SONYPI_CAPTURE_MASK                     0x00000002
1244 #define SONYPI_FNKEY_MASK                       0x00000004
1245 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1246 #define SONYPI_PKEY_MASK                        0x00000010
1247 #define SONYPI_BACK_MASK                        0x00000020
1248 #define SONYPI_HELP_MASK                        0x00000040
1249 #define SONYPI_LID_MASK                         0x00000080
1250 #define SONYPI_ZOOM_MASK                        0x00000100
1251 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1252 #define SONYPI_MEYE_MASK                        0x00000400
1253 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1254 #define SONYPI_BATTERY_MASK                     0x00001000
1255 #define SONYPI_WIRELESS_MASK                    0x00002000
1256
1257 struct sonypi_event {
1258         u8      data;
1259         u8      event;
1260 };
1261
1262 /* The set of possible button release events */
1263 static struct sonypi_event sonypi_releaseev[] = {
1264         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1265         { 0, 0 }
1266 };
1267
1268 /* The set of possible jogger events  */
1269 static struct sonypi_event sonypi_joggerev[] = {
1270         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1271         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1272         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1273         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1274         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1275         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1276         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1277         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1278         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1279         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1280         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1281         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1282         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1283         { 0, 0 }
1284 };
1285
1286 /* The set of possible capture button events */
1287 static struct sonypi_event sonypi_captureev[] = {
1288         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1289         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1290         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1291         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1292         { 0, 0 }
1293 };
1294
1295 /* The set of possible fnkeys events */
1296 static struct sonypi_event sonypi_fnkeyev[] = {
1297         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1298         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1299         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1300         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1301         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1302         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1303         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1304         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1305         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1306         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1307         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1308         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1309         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1310         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1311         { 0x21, SONYPI_EVENT_FNKEY_1 },
1312         { 0x22, SONYPI_EVENT_FNKEY_2 },
1313         { 0x31, SONYPI_EVENT_FNKEY_D },
1314         { 0x32, SONYPI_EVENT_FNKEY_E },
1315         { 0x33, SONYPI_EVENT_FNKEY_F },
1316         { 0x34, SONYPI_EVENT_FNKEY_S },
1317         { 0x35, SONYPI_EVENT_FNKEY_B },
1318         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1319         { 0, 0 }
1320 };
1321
1322 /* The set of possible program key events */
1323 static struct sonypi_event sonypi_pkeyev[] = {
1324         { 0x01, SONYPI_EVENT_PKEY_P1 },
1325         { 0x02, SONYPI_EVENT_PKEY_P2 },
1326         { 0x04, SONYPI_EVENT_PKEY_P3 },
1327         { 0, 0 }
1328 };
1329
1330 /* The set of possible bluetooth events */
1331 static struct sonypi_event sonypi_blueev[] = {
1332         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1333         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1334         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1335         { 0, 0 }
1336 };
1337
1338 /* The set of possible wireless events */
1339 static struct sonypi_event sonypi_wlessev[] = {
1340         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1341         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1342         { 0, 0 }
1343 };
1344
1345 /* The set of possible back button events */
1346 static struct sonypi_event sonypi_backev[] = {
1347         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1348         { 0, 0 }
1349 };
1350
1351 /* The set of possible help button events */
1352 static struct sonypi_event sonypi_helpev[] = {
1353         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1354         { 0, 0 }
1355 };
1356
1357
1358 /* The set of possible lid events */
1359 static struct sonypi_event sonypi_lidev[] = {
1360         { 0x51, SONYPI_EVENT_LID_CLOSED },
1361         { 0x50, SONYPI_EVENT_LID_OPENED },
1362         { 0, 0 }
1363 };
1364
1365 /* The set of possible zoom events */
1366 static struct sonypi_event sonypi_zoomev[] = {
1367         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1368         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1369         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1370         { 0, 0 }
1371 };
1372
1373 /* The set of possible thumbphrase events */
1374 static struct sonypi_event sonypi_thumbphraseev[] = {
1375         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1376         { 0, 0 }
1377 };
1378
1379 /* The set of possible motioneye camera events */
1380 static struct sonypi_event sonypi_meyeev[] = {
1381         { 0x00, SONYPI_EVENT_MEYE_FACE },
1382         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1383         { 0, 0 }
1384 };
1385
1386 /* The set of possible memorystick events */
1387 static struct sonypi_event sonypi_memorystickev[] = {
1388         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1389         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1390         { 0, 0 }
1391 };
1392
1393 /* The set of possible battery events */
1394 static struct sonypi_event sonypi_batteryev[] = {
1395         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1396         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1397         { 0, 0 }
1398 };
1399
1400 static struct sonypi_eventtypes type1_events[] = {
1401         { 0, 0xffffffff, sonypi_releaseev },
1402         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1403         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1404         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1405         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1406         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1407         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1408         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1409         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1410         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1411         { 0 },
1412 };
1413 static struct sonypi_eventtypes type2_events[] = {
1414         { 0, 0xffffffff, sonypi_releaseev },
1415         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1416         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1417         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1418         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1419         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1420         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1421         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1422         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1423         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1424         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1425         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1426         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1427         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1428         { 0 },
1429 };
1430 static struct sonypi_eventtypes type3_events[] = {
1431         { 0, 0xffffffff, sonypi_releaseev },
1432         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1433         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1434         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1435         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1436         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1437         { 0 },
1438 };
1439 static struct sonypi_eventtypes type4_events[] = {
1440         { 0, 0xffffffff, sonypi_releaseev },
1441         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1442         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1443         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1444         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1445         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1446         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1447         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1448         { 0 },
1449 };
1450
1451 /* low level spic calls */
1452 #define ITERATIONS_LONG         10000
1453 #define ITERATIONS_SHORT        10
1454 #define wait_on_command(command, iterations) {                          \
1455         unsigned int n = iterations;                                    \
1456         while (--n && (command))                                        \
1457                 udelay(1);                                              \
1458         if (!n)                                                         \
1459                 dprintk("command failed at %s : %s (line %d)\n",        \
1460                                 __FILE__, __func__, __LINE__);  \
1461 }
1462
1463 static u8 sony_pic_call1(u8 dev)
1464 {
1465         u8 v1, v2;
1466
1467         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1468                         ITERATIONS_LONG);
1469         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1470         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1471         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1472         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1473         return v2;
1474 }
1475
1476 static u8 sony_pic_call2(u8 dev, u8 fn)
1477 {
1478         u8 v1;
1479
1480         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1481                         ITERATIONS_LONG);
1482         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1483         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1484                         ITERATIONS_LONG);
1485         outb(fn, spic_dev.cur_ioport->io1.minimum);
1486         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1487         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1488         return v1;
1489 }
1490
1491 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1492 {
1493         u8 v1;
1494
1495         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1496         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1497         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1498         outb(fn, spic_dev.cur_ioport->io1.minimum);
1499         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1500         outb(v, spic_dev.cur_ioport->io1.minimum);
1501         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1502         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1503                         dev, fn, v, v1);
1504         return v1;
1505 }
1506
1507 /*
1508  * minidrivers for SPIC models
1509  */
1510 static int type4_handle_irq(const u8 data_mask, const u8 ev)
1511 {
1512         /*
1513          * 0x31 could mean we have to take some extra action and wait for
1514          * the next irq for some Type4 models, it will generate a new
1515          * irq and we can read new data from the device:
1516          *  - 0x5c and 0x5f requires 0xA0
1517          *  - 0x61 requires 0xB3
1518          */
1519         if (data_mask == 0x31) {
1520                 if (ev == 0x5c || ev == 0x5f)
1521                         sony_pic_call1(0xA0);
1522                 else if (ev == 0x61)
1523                         sony_pic_call1(0xB3);
1524                 return 0;
1525         }
1526         return 1;
1527 }
1528
1529 static struct device_ctrl spic_types[] = {
1530         {
1531                 .model = SONYPI_DEVICE_TYPE1,
1532                 .handle_irq = NULL,
1533                 .evport_offset = SONYPI_TYPE1_OFFSET,
1534                 .event_types = type1_events,
1535         },
1536         {
1537                 .model = SONYPI_DEVICE_TYPE2,
1538                 .handle_irq = NULL,
1539                 .evport_offset = SONYPI_TYPE2_OFFSET,
1540                 .event_types = type2_events,
1541         },
1542         {
1543                 .model = SONYPI_DEVICE_TYPE3,
1544                 .handle_irq = NULL,
1545                 .evport_offset = SONYPI_TYPE3_OFFSET,
1546                 .event_types = type3_events,
1547         },
1548         {
1549                 .model = SONYPI_DEVICE_TYPE4,
1550                 .handle_irq = type4_handle_irq,
1551                 .evport_offset = SONYPI_TYPE4_OFFSET,
1552                 .event_types = type4_events,
1553         },
1554 };
1555
1556 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1557 {
1558         struct pci_dev *pcidev;
1559
1560         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1561                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1562         if (pcidev) {
1563                 dev->control = &spic_types[0];
1564                 goto out;
1565         }
1566
1567         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1568                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1569         if (pcidev) {
1570                 dev->control = &spic_types[2];
1571                 goto out;
1572         }
1573
1574         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1575                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1576         if (pcidev) {
1577                 dev->control = &spic_types[3];
1578                 goto out;
1579         }
1580
1581         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1582                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1583         if (pcidev) {
1584                 dev->control = &spic_types[3];
1585                 goto out;
1586         }
1587
1588         /* default */
1589         dev->control = &spic_types[1];
1590
1591 out:
1592         if (pcidev)
1593                 pci_dev_put(pcidev);
1594
1595         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1596                         dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
1597                         dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
1598                         dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
1599 }
1600
1601 /* camera tests and poweron/poweroff */
1602 #define SONYPI_CAMERA_PICTURE           5
1603 #define SONYPI_CAMERA_CONTROL           0x10
1604
1605 #define SONYPI_CAMERA_BRIGHTNESS                0
1606 #define SONYPI_CAMERA_CONTRAST                  1
1607 #define SONYPI_CAMERA_HUE                       2
1608 #define SONYPI_CAMERA_COLOR                     3
1609 #define SONYPI_CAMERA_SHARPNESS                 4
1610
1611 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1612 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1613 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1614 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1615
1616 /* the rest don't need a loop until not 0xff */
1617 #define SONYPI_CAMERA_AGC                       6
1618 #define SONYPI_CAMERA_AGC_MASK                  0x30
1619 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1620
1621 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1622 #define SONYPI_CAMERA_CONTROL                   0x10
1623
1624 #define SONYPI_CAMERA_STATUS                    7
1625 #define SONYPI_CAMERA_STATUS_READY              0x2
1626 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1627
1628 #define SONYPI_DIRECTION_BACKWARDS              0x4
1629
1630 #define SONYPI_CAMERA_REVISION                  8
1631 #define SONYPI_CAMERA_ROMVERSION                9
1632
1633 static int __sony_pic_camera_ready(void)
1634 {
1635         u8 v;
1636
1637         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1638         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1639 }
1640
1641 static int __sony_pic_camera_off(void)
1642 {
1643         if (!camera) {
1644                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1645                 return -ENODEV;
1646         }
1647
1648         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1649                                 SONYPI_CAMERA_MUTE_MASK),
1650                         ITERATIONS_SHORT);
1651
1652         if (spic_dev.camera_power) {
1653                 sony_pic_call2(0x91, 0);
1654                 spic_dev.camera_power = 0;
1655         }
1656         return 0;
1657 }
1658
1659 static int __sony_pic_camera_on(void)
1660 {
1661         int i, j, x;
1662
1663         if (!camera) {
1664                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1665                 return -ENODEV;
1666         }
1667
1668         if (spic_dev.camera_power)
1669                 return 0;
1670
1671         for (j = 5; j > 0; j--) {
1672
1673                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1674                         msleep(10);
1675                 sony_pic_call1(0x93);
1676
1677                 for (i = 400; i > 0; i--) {
1678                         if (__sony_pic_camera_ready())
1679                                 break;
1680                         msleep(10);
1681                 }
1682                 if (i)
1683                         break;
1684         }
1685
1686         if (j == 0) {
1687                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1688                 return -ENODEV;
1689         }
1690
1691         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1692                                 0x5a),
1693                         ITERATIONS_SHORT);
1694
1695         spic_dev.camera_power = 1;
1696         return 0;
1697 }
1698
1699 /* External camera command (exported to the motion eye v4l driver) */
1700 int sony_pic_camera_command(int command, u8 value)
1701 {
1702         if (!camera)
1703                 return -EIO;
1704
1705         mutex_lock(&spic_dev.lock);
1706
1707         switch (command) {
1708         case SONY_PIC_COMMAND_SETCAMERA:
1709                 if (value)
1710                         __sony_pic_camera_on();
1711                 else
1712                         __sony_pic_camera_off();
1713                 break;
1714         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1715                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1716                                 ITERATIONS_SHORT);
1717                 break;
1718         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1719                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1720                                 ITERATIONS_SHORT);
1721                 break;
1722         case SONY_PIC_COMMAND_SETCAMERAHUE:
1723                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1724                                 ITERATIONS_SHORT);
1725                 break;
1726         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1727                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1728                                 ITERATIONS_SHORT);
1729                 break;
1730         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1731                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1732                                 ITERATIONS_SHORT);
1733                 break;
1734         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1735                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1736                                 ITERATIONS_SHORT);
1737                 break;
1738         case SONY_PIC_COMMAND_SETCAMERAAGC:
1739                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1740                                 ITERATIONS_SHORT);
1741                 break;
1742         default:
1743                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1744                        command);
1745                 break;
1746         }
1747         mutex_unlock(&spic_dev.lock);
1748         return 0;
1749 }
1750 EXPORT_SYMBOL(sony_pic_camera_command);
1751
1752 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1753 static void sony_pic_set_wwanpower(u8 state)
1754 {
1755         state = !!state;
1756         mutex_lock(&spic_dev.lock);
1757         if (spic_dev.wwan_power == state) {
1758                 mutex_unlock(&spic_dev.lock);
1759                 return;
1760         }
1761         sony_pic_call2(0xB0, state);
1762         spic_dev.wwan_power = state;
1763         mutex_unlock(&spic_dev.lock);
1764 }
1765
1766 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1767                 struct device_attribute *attr,
1768                 const char *buffer, size_t count)
1769 {
1770         unsigned long value;
1771         if (count > 31)
1772                 return -EINVAL;
1773
1774         value = simple_strtoul(buffer, NULL, 10);
1775         sony_pic_set_wwanpower(value);
1776
1777         return count;
1778 }
1779
1780 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1781                 struct device_attribute *attr, char *buffer)
1782 {
1783         ssize_t count;
1784         mutex_lock(&spic_dev.lock);
1785         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1786         mutex_unlock(&spic_dev.lock);
1787         return count;
1788 }
1789
1790 /* bluetooth subsystem power state */
1791 static void __sony_pic_set_bluetoothpower(u8 state)
1792 {
1793         state = !!state;
1794         if (spic_dev.bluetooth_power == state)
1795                 return;
1796         sony_pic_call2(0x96, state);
1797         sony_pic_call1(0x82);
1798         spic_dev.bluetooth_power = state;
1799 }
1800
1801 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1802                 struct device_attribute *attr,
1803                 const char *buffer, size_t count)
1804 {
1805         unsigned long value;
1806         if (count > 31)
1807                 return -EINVAL;
1808
1809         value = simple_strtoul(buffer, NULL, 10);
1810         mutex_lock(&spic_dev.lock);
1811         __sony_pic_set_bluetoothpower(value);
1812         mutex_unlock(&spic_dev.lock);
1813
1814         return count;
1815 }
1816
1817 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1818                 struct device_attribute *attr, char *buffer)
1819 {
1820         ssize_t count = 0;
1821         mutex_lock(&spic_dev.lock);
1822         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1823         mutex_unlock(&spic_dev.lock);
1824         return count;
1825 }
1826
1827 /* fan speed */
1828 /* FAN0 information (reverse engineered from ACPI tables) */
1829 #define SONY_PIC_FAN0_STATUS    0x93
1830 static int sony_pic_set_fanspeed(unsigned long value)
1831 {
1832         return ec_write(SONY_PIC_FAN0_STATUS, value);
1833 }
1834
1835 static int sony_pic_get_fanspeed(u8 *value)
1836 {
1837         return ec_read(SONY_PIC_FAN0_STATUS, value);
1838 }
1839
1840 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1841                 struct device_attribute *attr,
1842                 const char *buffer, size_t count)
1843 {
1844         unsigned long value;
1845         if (count > 31)
1846                 return -EINVAL;
1847
1848         value = simple_strtoul(buffer, NULL, 10);
1849         if (sony_pic_set_fanspeed(value))
1850                 return -EIO;
1851
1852         return count;
1853 }
1854
1855 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1856                 struct device_attribute *attr, char *buffer)
1857 {
1858         u8 value = 0;
1859         if (sony_pic_get_fanspeed(&value))
1860                 return -EIO;
1861
1862         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1863 }
1864
1865 #define SPIC_ATTR(_name, _mode)                                 \
1866 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1867                 _mode, sony_pic_## _name ##_show,               \
1868                 sony_pic_## _name ##_store)
1869
1870 static SPIC_ATTR(bluetoothpower, 0644);
1871 static SPIC_ATTR(wwanpower, 0644);
1872 static SPIC_ATTR(fanspeed, 0644);
1873
1874 static struct attribute *spic_attributes[] = {
1875         &spic_attr_bluetoothpower.attr,
1876         &spic_attr_wwanpower.attr,
1877         &spic_attr_fanspeed.attr,
1878         NULL
1879 };
1880
1881 static struct attribute_group spic_attribute_group = {
1882         .attrs = spic_attributes
1883 };
1884
1885 /******** SONYPI compatibility **********/
1886 #ifdef CONFIG_SONYPI_COMPAT
1887
1888 /* battery / brightness / temperature  addresses */
1889 #define SONYPI_BAT_FLAGS        0x81
1890 #define SONYPI_LCD_LIGHT        0x96
1891 #define SONYPI_BAT1_PCTRM       0xa0
1892 #define SONYPI_BAT1_LEFT        0xa2
1893 #define SONYPI_BAT1_MAXRT       0xa4
1894 #define SONYPI_BAT2_PCTRM       0xa8
1895 #define SONYPI_BAT2_LEFT        0xaa
1896 #define SONYPI_BAT2_MAXRT       0xac
1897 #define SONYPI_BAT1_MAXTK       0xb0
1898 #define SONYPI_BAT1_FULL        0xb2
1899 #define SONYPI_BAT2_MAXTK       0xb8
1900 #define SONYPI_BAT2_FULL        0xba
1901 #define SONYPI_TEMP_STATUS      0xC1
1902
1903 struct sonypi_compat_s {
1904         struct fasync_struct    *fifo_async;
1905         struct kfifo            *fifo;
1906         spinlock_t              fifo_lock;
1907         wait_queue_head_t       fifo_proc_list;
1908         atomic_t                open_count;
1909 };
1910 static struct sonypi_compat_s sonypi_compat = {
1911         .open_count = ATOMIC_INIT(0),
1912 };
1913
1914 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1915 {
1916         int retval;
1917
1918         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1919         if (retval < 0)
1920                 return retval;
1921         return 0;
1922 }
1923
1924 static int sonypi_misc_release(struct inode *inode, struct file *file)
1925 {
1926         atomic_dec(&sonypi_compat.open_count);
1927         return 0;
1928 }
1929
1930 static int sonypi_misc_open(struct inode *inode, struct file *file)
1931 {
1932         /* Flush input queue on first open */
1933         lock_kernel();
1934         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1935                 kfifo_reset(sonypi_compat.fifo);
1936         unlock_kernel();
1937         return 0;
1938 }
1939
1940 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1941                                 size_t count, loff_t *pos)
1942 {
1943         ssize_t ret;
1944         unsigned char c;
1945
1946         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1947             (file->f_flags & O_NONBLOCK))
1948                 return -EAGAIN;
1949
1950         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1951                                        kfifo_len(sonypi_compat.fifo) != 0);
1952         if (ret)
1953                 return ret;
1954
1955         while (ret < count &&
1956                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1957                 if (put_user(c, buf++))
1958                         return -EFAULT;
1959                 ret++;
1960         }
1961
1962         if (ret > 0) {
1963                 struct inode *inode = file->f_path.dentry->d_inode;
1964                 inode->i_atime = current_fs_time(inode->i_sb);
1965         }
1966
1967         return ret;
1968 }
1969
1970 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1971 {
1972         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1973         if (kfifo_len(sonypi_compat.fifo))
1974                 return POLLIN | POLLRDNORM;
1975         return 0;
1976 }
1977
1978 static int ec_read16(u8 addr, u16 *value)
1979 {
1980         u8 val_lb, val_hb;
1981         if (ec_read(addr, &val_lb))
1982                 return -1;
1983         if (ec_read(addr + 1, &val_hb))
1984                 return -1;
1985         *value = val_lb | (val_hb << 8);
1986         return 0;
1987 }
1988
1989 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1990                              unsigned int cmd, unsigned long arg)
1991 {
1992         int ret = 0;
1993         void __user *argp = (void __user *)arg;
1994         u8 val8;
1995         u16 val16;
1996         int value;
1997
1998         mutex_lock(&spic_dev.lock);
1999         switch (cmd) {
2000         case SONYPI_IOCGBRT:
2001                 if (sony_backlight_device == NULL) {
2002                         ret = -EIO;
2003                         break;
2004                 }
2005                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2006                         ret = -EIO;
2007                         break;
2008                 }
2009                 val8 = ((value & 0xff) - 1) << 5;
2010                 if (copy_to_user(argp, &val8, sizeof(val8)))
2011                                 ret = -EFAULT;
2012                 break;
2013         case SONYPI_IOCSBRT:
2014                 if (sony_backlight_device == NULL) {
2015                         ret = -EIO;
2016                         break;
2017                 }
2018                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2019                         ret = -EFAULT;
2020                         break;
2021                 }
2022                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2023                                 (val8 >> 5) + 1, NULL)) {
2024                         ret = -EIO;
2025                         break;
2026                 }
2027                 /* sync the backlight device status */
2028                 sony_backlight_device->props.brightness =
2029                     sony_backlight_get_brightness(sony_backlight_device);
2030                 break;
2031         case SONYPI_IOCGBAT1CAP:
2032                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2033                         ret = -EIO;
2034                         break;
2035                 }
2036                 if (copy_to_user(argp, &val16, sizeof(val16)))
2037                         ret = -EFAULT;
2038                 break;
2039         case SONYPI_IOCGBAT1REM:
2040                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2041                         ret = -EIO;
2042                         break;
2043                 }
2044                 if (copy_to_user(argp, &val16, sizeof(val16)))
2045                         ret = -EFAULT;
2046                 break;
2047         case SONYPI_IOCGBAT2CAP:
2048                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2049                         ret = -EIO;
2050                         break;
2051                 }
2052                 if (copy_to_user(argp, &val16, sizeof(val16)))
2053                         ret = -EFAULT;
2054                 break;
2055         case SONYPI_IOCGBAT2REM:
2056                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2057                         ret = -EIO;
2058                         break;
2059                 }
2060                 if (copy_to_user(argp, &val16, sizeof(val16)))
2061                         ret = -EFAULT;
2062                 break;
2063         case SONYPI_IOCGBATFLAGS:
2064                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2065                         ret = -EIO;
2066                         break;
2067                 }
2068                 val8 &= 0x07;
2069                 if (copy_to_user(argp, &val8, sizeof(val8)))
2070                         ret = -EFAULT;
2071                 break;
2072         case SONYPI_IOCGBLUE:
2073                 val8 = spic_dev.bluetooth_power;
2074                 if (copy_to_user(argp, &val8, sizeof(val8)))
2075                         ret = -EFAULT;
2076                 break;
2077         case SONYPI_IOCSBLUE:
2078                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2079                         ret = -EFAULT;
2080                         break;
2081                 }
2082                 __sony_pic_set_bluetoothpower(val8);
2083                 break;
2084         /* FAN Controls */
2085         case SONYPI_IOCGFAN:
2086                 if (sony_pic_get_fanspeed(&val8)) {
2087                         ret = -EIO;
2088                         break;
2089                 }
2090                 if (copy_to_user(argp, &val8, sizeof(val8)))
2091                         ret = -EFAULT;
2092                 break;
2093         case SONYPI_IOCSFAN:
2094                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2095                         ret = -EFAULT;
2096                         break;
2097                 }
2098                 if (sony_pic_set_fanspeed(val8))
2099                         ret = -EIO;
2100                 break;
2101         /* GET Temperature (useful under APM) */
2102         case SONYPI_IOCGTEMP:
2103                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2104                         ret = -EIO;
2105                         break;
2106                 }
2107                 if (copy_to_user(argp, &val8, sizeof(val8)))
2108                         ret = -EFAULT;
2109                 break;
2110         default:
2111                 ret = -EINVAL;
2112         }
2113         mutex_unlock(&spic_dev.lock);
2114         return ret;
2115 }
2116
2117 static const struct file_operations sonypi_misc_fops = {
2118         .owner          = THIS_MODULE,
2119         .read           = sonypi_misc_read,
2120         .poll           = sonypi_misc_poll,
2121         .open           = sonypi_misc_open,
2122         .release        = sonypi_misc_release,
2123         .fasync         = sonypi_misc_fasync,
2124         .ioctl          = sonypi_misc_ioctl,
2125 };
2126
2127 static struct miscdevice sonypi_misc_device = {
2128         .minor          = MISC_DYNAMIC_MINOR,
2129         .name           = "sonypi",
2130         .fops           = &sonypi_misc_fops,
2131 };
2132
2133 static void sonypi_compat_report_event(u8 event)
2134 {
2135         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2136         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2137         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2138 }
2139
2140 static int sonypi_compat_init(void)
2141 {
2142         int error;
2143
2144         spin_lock_init(&sonypi_compat.fifo_lock);
2145         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2146                                          &sonypi_compat.fifo_lock);
2147         if (IS_ERR(sonypi_compat.fifo)) {
2148                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2149                 return PTR_ERR(sonypi_compat.fifo);
2150         }
2151
2152         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2153
2154         if (minor != -1)
2155                 sonypi_misc_device.minor = minor;
2156         error = misc_register(&sonypi_misc_device);
2157         if (error) {
2158                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2159                 goto err_free_kfifo;
2160         }
2161         if (minor == -1)
2162                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2163                        sonypi_misc_device.minor);
2164
2165         return 0;
2166
2167 err_free_kfifo:
2168         kfifo_free(sonypi_compat.fifo);
2169         return error;
2170 }
2171
2172 static void sonypi_compat_exit(void)
2173 {
2174         misc_deregister(&sonypi_misc_device);
2175         kfifo_free(sonypi_compat.fifo);
2176 }
2177 #else
2178 static int sonypi_compat_init(void) { return 0; }
2179 static void sonypi_compat_exit(void) { }
2180 static void sonypi_compat_report_event(u8 event) { }
2181 #endif /* CONFIG_SONYPI_COMPAT */
2182
2183 /*
2184  * ACPI callbacks
2185  */
2186 static acpi_status
2187 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2188 {
2189         u32 i;
2190         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2191
2192         switch (resource->type) {
2193         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2194                 {
2195                         /* start IO enumeration */
2196                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2197                         if (!ioport)
2198                                 return AE_ERROR;
2199
2200                         list_add(&ioport->list, &dev->ioports);
2201                         return AE_OK;
2202                 }
2203
2204         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2205                 /* end IO enumeration */
2206                 return AE_OK;
2207
2208         case ACPI_RESOURCE_TYPE_IRQ:
2209                 {
2210                         struct acpi_resource_irq *p = &resource->data.irq;
2211                         struct sony_pic_irq *interrupt = NULL;
2212                         if (!p || !p->interrupt_count) {
2213                                 /*
2214                                  * IRQ descriptors may have no IRQ# bits set,
2215                                  * particularly those those w/ _STA disabled
2216                                  */
2217                                 dprintk("Blank IRQ resource\n");
2218                                 return AE_OK;
2219                         }
2220                         for (i = 0; i < p->interrupt_count; i++) {
2221                                 if (!p->interrupts[i]) {
2222                                         printk(KERN_WARNING DRV_PFX
2223                                                         "Invalid IRQ %d\n",
2224                                                         p->interrupts[i]);
2225                                         continue;
2226                                 }
2227                                 interrupt = kzalloc(sizeof(*interrupt),
2228                                                 GFP_KERNEL);
2229                                 if (!interrupt)
2230                                         return AE_ERROR;
2231
2232                                 list_add(&interrupt->list, &dev->interrupts);
2233                                 interrupt->irq.triggering = p->triggering;
2234                                 interrupt->irq.polarity = p->polarity;
2235                                 interrupt->irq.sharable = p->sharable;
2236                                 interrupt->irq.interrupt_count = 1;
2237                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2238                         }
2239                         return AE_OK;
2240                 }
2241         case ACPI_RESOURCE_TYPE_IO:
2242                 {
2243                         struct acpi_resource_io *io = &resource->data.io;
2244                         struct sony_pic_ioport *ioport =
2245                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2246                         if (!io) {
2247                                 dprintk("Blank IO resource\n");
2248                                 return AE_OK;
2249                         }
2250
2251                         if (!ioport->io1.minimum) {
2252                                 memcpy(&ioport->io1, io, sizeof(*io));
2253                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2254                                                 ioport->io1.address_length);
2255                         }
2256                         else if (!ioport->io2.minimum) {
2257                                 memcpy(&ioport->io2, io, sizeof(*io));
2258                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2259                                                 ioport->io2.address_length);
2260                         }
2261                         else {
2262                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2263                                 return AE_ERROR;
2264                         }
2265                         return AE_OK;
2266                 }
2267         default:
2268                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2269                                 resource->type);
2270
2271         case ACPI_RESOURCE_TYPE_END_TAG:
2272                 return AE_OK;
2273         }
2274         return AE_CTRL_TERMINATE;
2275 }
2276
2277 static int sony_pic_possible_resources(struct acpi_device *device)
2278 {
2279         int result = 0;
2280         acpi_status status = AE_OK;
2281
2282         if (!device)
2283                 return -EINVAL;
2284
2285         /* get device status */
2286         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2287         dprintk("Evaluating _STA\n");
2288         result = acpi_bus_get_status(device);
2289         if (result) {
2290                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2291                 goto end;
2292         }
2293
2294         if (!device->status.enabled)
2295                 dprintk("Device disabled\n");
2296         else
2297                 dprintk("Device enabled\n");
2298
2299         /*
2300          * Query and parse 'method'
2301          */
2302         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2303         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2304                         sony_pic_read_possible_resource, &spic_dev);
2305         if (ACPI_FAILURE(status)) {
2306                 printk(KERN_WARNING DRV_PFX
2307                                 "Failure evaluating %s\n",
2308                                 METHOD_NAME__PRS);
2309                 result = -ENODEV;
2310         }
2311 end:
2312         return result;
2313 }
2314
2315 /*
2316  *  Disable the spic device by calling its _DIS method
2317  */
2318 static int sony_pic_disable(struct acpi_device *device)
2319 {
2320         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2321                                                NULL);
2322
2323         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2324                 return -ENXIO;
2325
2326         dprintk("Device disabled\n");
2327         return 0;
2328 }
2329
2330
2331 /*
2332  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2333  *
2334  *  Call _SRS to set current resources
2335  */
2336 static int sony_pic_enable(struct acpi_device *device,
2337                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2338 {
2339         acpi_status status;
2340         int result = 0;
2341         /* Type 1 resource layout is:
2342          *    IO
2343          *    IO
2344          *    IRQNoFlags
2345          *    End
2346          *
2347          * Type 2 and 3 resource layout is:
2348          *    IO
2349          *    IRQNoFlags
2350          *    End
2351          */
2352         struct {
2353                 struct acpi_resource res1;
2354                 struct acpi_resource res2;
2355                 struct acpi_resource res3;
2356                 struct acpi_resource res4;
2357         } *resource;
2358         struct acpi_buffer buffer = { 0, NULL };
2359
2360         if (!ioport || !irq)
2361                 return -EINVAL;
2362
2363         /* init acpi_buffer */
2364         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2365         if (!resource)
2366                 return -ENOMEM;
2367
2368         buffer.length = sizeof(*resource) + 1;
2369         buffer.pointer = resource;
2370
2371         /* setup Type 1 resources */
2372         if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2373
2374                 /* setup io resources */
2375                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2376                 resource->res1.length = sizeof(struct acpi_resource);
2377                 memcpy(&resource->res1.data.io, &ioport->io1,
2378                                 sizeof(struct acpi_resource_io));
2379
2380                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2381                 resource->res2.length = sizeof(struct acpi_resource);
2382                 memcpy(&resource->res2.data.io, &ioport->io2,
2383                                 sizeof(struct acpi_resource_io));
2384
2385                 /* setup irq resource */
2386                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2387                 resource->res3.length = sizeof(struct acpi_resource);
2388                 memcpy(&resource->res3.data.irq, &irq->irq,
2389                                 sizeof(struct acpi_resource_irq));
2390                 /* we requested a shared irq */
2391                 resource->res3.data.irq.sharable = ACPI_SHARED;
2392
2393                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2394
2395         }
2396         /* setup Type 2/3 resources */
2397         else {
2398                 /* setup io resource */
2399                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2400                 resource->res1.length = sizeof(struct acpi_resource);
2401                 memcpy(&resource->res1.data.io, &ioport->io1,
2402                                 sizeof(struct acpi_resource_io));
2403
2404                 /* setup irq resource */
2405                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2406                 resource->res2.length = sizeof(struct acpi_resource);
2407                 memcpy(&resource->res2.data.irq, &irq->irq,
2408                                 sizeof(struct acpi_resource_irq));
2409                 /* we requested a shared irq */
2410                 resource->res2.data.irq.sharable = ACPI_SHARED;
2411
2412                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2413         }
2414
2415         /* Attempt to set the resource */
2416         dprintk("Evaluating _SRS\n");
2417         status = acpi_set_current_resources(device->handle, &buffer);
2418
2419         /* check for total failure */
2420         if (ACPI_FAILURE(status)) {
2421                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2422                 result = -ENODEV;
2423                 goto end;
2424         }
2425
2426         /* Necessary device initializations calls (from sonypi) */
2427         sony_pic_call1(0x82);
2428         sony_pic_call2(0x81, 0xff);
2429         sony_pic_call1(compat ? 0x92 : 0x82);
2430
2431 end:
2432         kfree(resource);
2433         return result;
2434 }
2435
2436 /*****************
2437  *
2438  * ISR: some event is available
2439  *
2440  *****************/
2441 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2442 {
2443         int i, j;
2444         u8 ev = 0;
2445         u8 data_mask = 0;
2446         u8 device_event = 0;
2447
2448         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2449
2450         ev = inb_p(dev->cur_ioport->io1.minimum);
2451         if (dev->cur_ioport->io2.minimum)
2452                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2453         else
2454                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2455                                 dev->control->evport_offset);
2456
2457         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2458                         ev, data_mask, dev->cur_ioport->io1.minimum,
2459                         dev->control->evport_offset);
2460
2461         if (ev == 0x00 || ev == 0xff)
2462                 return IRQ_HANDLED;
2463
2464         for (i = 0; dev->control->event_types[i].mask; i++) {
2465
2466                 if ((data_mask & dev->control->event_types[i].data) !=
2467                     dev->control->event_types[i].data)
2468                         continue;
2469
2470                 if (!(mask & dev->control->event_types[i].mask))
2471                         continue;
2472
2473                 for (j = 0; dev->control->event_types[i].events[j].event; j++) {
2474                         if (ev == dev->control->event_types[i].events[j].data) {
2475                                 device_event =
2476                                         dev->control->
2477                                                 event_types[i].events[j].event;
2478                                 goto found;
2479                         }
2480                 }
2481         }
2482         /* Still not able to decode the event try to pass
2483          * it over to the minidriver
2484          */
2485         if (dev->control->handle_irq &&
2486                         dev->control->handle_irq(data_mask, ev) == 0)
2487                 return IRQ_HANDLED;
2488
2489         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2490                         ev, data_mask, dev->cur_ioport->io1.minimum,
2491                         dev->control->evport_offset);
2492         return IRQ_HANDLED;
2493
2494 found:
2495         sony_laptop_report_input_event(device_event);
2496         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2497         sonypi_compat_report_event(device_event);
2498
2499         return IRQ_HANDLED;
2500 }
2501
2502 /*****************
2503  *
2504  *  ACPI driver
2505  *
2506  *****************/
2507 static int sony_pic_remove(struct acpi_device *device, int type)
2508 {
2509         struct sony_pic_ioport *io, *tmp_io;
2510         struct sony_pic_irq *irq, *tmp_irq;
2511
2512         if (sony_pic_disable(device)) {
2513                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2514                 return -ENXIO;
2515         }
2516
2517         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2518         release_region(spic_dev.cur_ioport->io1.minimum,
2519                         spic_dev.cur_ioport->io1.address_length);
2520         if (spic_dev.cur_ioport->io2.minimum)
2521                 release_region(spic_dev.cur_ioport->io2.minimum,
2522                                 spic_dev.cur_ioport->io2.address_length);
2523
2524         sonypi_compat_exit();
2525
2526         sony_laptop_remove_input();
2527
2528         /* pf attrs */
2529         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2530         sony_pf_remove();
2531
2532         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2533                 list_del(&io->list);
2534                 kfree(io);
2535         }
2536         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2537                 list_del(&irq->list);
2538                 kfree(irq);
2539         }
2540         spic_dev.cur_ioport = NULL;
2541         spic_dev.cur_irq = NULL;
2542
2543         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2544         return 0;
2545 }
2546
2547 static int sony_pic_add(struct acpi_device *device)
2548 {
2549         int result;
2550         struct sony_pic_ioport *io, *tmp_io;
2551         struct sony_pic_irq *irq, *tmp_irq;
2552
2553         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2554                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2555
2556         spic_dev.acpi_dev = device;
2557         strcpy(acpi_device_class(device), "sony/hotkey");
2558         sony_pic_detect_device_type(&spic_dev);
2559         mutex_init(&spic_dev.lock);
2560
2561         /* read _PRS resources */
2562         result = sony_pic_possible_resources(device);
2563         if (result) {
2564                 printk(KERN_ERR DRV_PFX
2565                                 "Unabe to read possible resources.\n");
2566                 goto err_free_resources;
2567         }
2568
2569         /* setup input devices and helper fifo */
2570         result = sony_laptop_setup_input(device);
2571         if (result) {
2572                 printk(KERN_ERR DRV_PFX
2573                                 "Unabe to create input devices.\n");
2574                 goto err_free_resources;
2575         }
2576
2577         if (sonypi_compat_init())
2578                 goto err_remove_input;
2579
2580         /* request io port */
2581         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2582                 if (request_region(io->io1.minimum, io->io1.address_length,
2583                                         "Sony Programable I/O Device")) {
2584                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2585                                         io->io1.minimum, io->io1.maximum,
2586                                         io->io1.address_length);
2587                         /* Type 1 have 2 ioports */
2588                         if (io->io2.minimum) {
2589                                 if (request_region(io->io2.minimum,
2590                                                 io->io2.address_length,
2591                                                 "Sony Programable I/O Device")) {
2592                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2593                                                         io->io2.minimum, io->io2.maximum,
2594                                                         io->io2.address_length);
2595                                         spic_dev.cur_ioport = io;
2596                                         break;
2597                                 }
2598                                 else {
2599                                         dprintk("Unable to get I/O port2: "
2600                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2601                                                         io->io2.minimum, io->io2.maximum,
2602                                                         io->io2.address_length);
2603                                         release_region(io->io1.minimum,
2604                                                         io->io1.address_length);
2605                                 }
2606                         }
2607                         else {
2608                                 spic_dev.cur_ioport = io;
2609                                 break;
2610                         }
2611                 }
2612         }
2613         if (!spic_dev.cur_ioport) {
2614                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2615                 result = -ENODEV;
2616                 goto err_remove_compat;
2617         }
2618
2619         /* request IRQ */
2620         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2621                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2622                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2623                         dprintk("IRQ: %d - triggering: %d - "
2624                                         "polarity: %d - shr: %d\n",
2625                                         irq->irq.interrupts[0],
2626                                         irq->irq.triggering,
2627                                         irq->irq.polarity,
2628                                         irq->irq.sharable);
2629                         spic_dev.cur_irq = irq;
2630                         break;
2631                 }
2632         }
2633         if (!spic_dev.cur_irq) {
2634                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2635                 result = -ENODEV;
2636                 goto err_release_region;
2637         }
2638
2639         /* set resource status _SRS */
2640         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2641         if (result) {
2642                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2643                 goto err_free_irq;
2644         }
2645
2646         spic_dev.bluetooth_power = -1;
2647         /* create device attributes */
2648         result = sony_pf_add();
2649         if (result)
2650                 goto err_disable_device;
2651
2652         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2653         if (result)
2654                 goto err_remove_pf;
2655
2656         return 0;
2657
2658 err_remove_pf:
2659         sony_pf_remove();
2660
2661 err_disable_device:
2662         sony_pic_disable(device);
2663
2664 err_free_irq:
2665         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2666
2667 err_release_region:
2668         release_region(spic_dev.cur_ioport->io1.minimum,
2669                         spic_dev.cur_ioport->io1.address_length);
2670         if (spic_dev.cur_ioport->io2.minimum)
2671                 release_region(spic_dev.cur_ioport->io2.minimum,
2672                                 spic_dev.cur_ioport->io2.address_length);
2673
2674 err_remove_compat:
2675         sonypi_compat_exit();
2676
2677 err_remove_input:
2678         sony_laptop_remove_input();
2679
2680 err_free_resources:
2681         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2682                 list_del(&io->list);
2683                 kfree(io);
2684         }
2685         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2686                 list_del(&irq->list);
2687                 kfree(irq);
2688         }
2689         spic_dev.cur_ioport = NULL;
2690         spic_dev.cur_irq = NULL;
2691
2692         return result;
2693 }
2694
2695 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2696 {
2697         if (sony_pic_disable(device))
2698                 return -ENXIO;
2699         return 0;
2700 }
2701
2702 static int sony_pic_resume(struct acpi_device *device)
2703 {
2704         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2705         return 0;
2706 }
2707
2708 static const struct acpi_device_id sony_pic_device_ids[] = {
2709         {SONY_PIC_HID, 0},
2710         {"", 0},
2711 };
2712
2713 static struct acpi_driver sony_pic_driver = {
2714         .name = SONY_PIC_DRIVER_NAME,
2715         .class = SONY_PIC_CLASS,
2716         .ids = sony_pic_device_ids,
2717         .owner = THIS_MODULE,
2718         .ops = {
2719                 .add = sony_pic_add,
2720                 .remove = sony_pic_remove,
2721                 .suspend = sony_pic_suspend,
2722                 .resume = sony_pic_resume,
2723                 },
2724 };
2725
2726 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2727         {
2728                 .ident = "Sony Vaio",
2729                 .matches = {
2730                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2731                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2732                 },
2733         },
2734         {
2735                 .ident = "Sony Vaio",
2736                 .matches = {
2737                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2738                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2739                 },
2740         },
2741         { }
2742 };
2743
2744 static int __init sony_laptop_init(void)
2745 {
2746         int result;
2747
2748         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2749                 result = acpi_bus_register_driver(&sony_pic_driver);
2750                 if (result) {
2751                         printk(KERN_ERR DRV_PFX
2752                                         "Unable to register SPIC driver.");
2753                         goto out;
2754                 }
2755         }
2756
2757         result = acpi_bus_register_driver(&sony_nc_driver);
2758         if (result) {
2759                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2760                 goto out_unregister_pic;
2761         }
2762
2763         return 0;
2764
2765 out_unregister_pic:
2766         if (!no_spic)
2767                 acpi_bus_unregister_driver(&sony_pic_driver);
2768 out:
2769         return result;
2770 }
2771
2772 static void __exit sony_laptop_exit(void)
2773 {
2774         acpi_bus_unregister_driver(&sony_nc_driver);
2775         if (!no_spic)
2776                 acpi_bus_unregister_driver(&sony_pic_driver);
2777 }
2778
2779 module_init(sony_laptop_init);
2780 module_exit(sony_laptop_exit);