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) 2007-2009 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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  46
  47 #include <linux/kernel.h>
  48 #include <linux/module.h>
  49 #include <linux/moduleparam.h>
  50 #include <linux/init.h>
  51 #include <linux/types.h>
  52 #include <linux/backlight.h>
  53 #include <linux/platform_device.h>
  54 #include <linux/err.h>
  55 #include <linux/dmi.h>
  56 #include <linux/pci.h>
  57 #include <linux/interrupt.h>
  58 #include <linux/delay.h>
  59 #include <linux/input.h>
  60 #include <linux/kfifo.h>
  61 #include <linux/workqueue.h>
  62 #include <linux/acpi.h>
  63 #include <linux/slab.h>
  64 #include <acpi/acpi_drivers.h>
  65 #include <acpi/acpi_bus.h>
  66 #include <asm/uaccess.h>
  67 #include <linux/sonypi.h>
  68 #include <linux/sony-laptop.h>
  69 #include <linux/rfkill.h>
  70 #ifdef CONFIG_SONYPI_COMPAT
  71 #include <linux/poll.h>
  72 #include <linux/miscdevice.h>
  73 #endif
  74
  75 #define dprintk(fmt, ...)                       \
  76 do {                                            \
  77         if (debug)                              \
  78                 pr_warn(fmt, ##__VA_ARGS__);    \
  79 } while (0)
  80
  81 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  82
  83 #define SONY_NC_CLASS           "sony-nc"
  84 #define SONY_NC_HID             "SNY5001"
  85 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  86
  87 #define SONY_PIC_CLASS          "sony-pic"
  88 #define SONY_PIC_HID            "SNY6001"
  89 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  90
  91 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  92 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  93 MODULE_LICENSE("GPL");
  94 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  95
  96 static int debug;
  97 module_param(debug, int, 0);
  98 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  99                  "the development of this driver");
 100
 101 static int no_spic;             /* = 0 */
 102 module_param(no_spic, int, 0444);
 103 MODULE_PARM_DESC(no_spic,
 104                  "set this if you don't want to enable the SPIC device");
 105
 106 static int compat;              /* = 0 */
 107 module_param(compat, int, 0444);
 108 MODULE_PARM_DESC(compat,
 109                  "set this if you want to enable backward compatibility mode");
 110
 111 static unsigned long mask = 0xffffffff;
 112 module_param(mask, ulong, 0644);
 113 MODULE_PARM_DESC(mask,
 114                  "set this to the mask of event you want to enable (see doc)");
 115
 116 static int camera;              /* = 0 */
 117 module_param(camera, int, 0444);
 118 MODULE_PARM_DESC(camera,
 119                  "set this to 1 to enable Motion Eye camera controls "
 120                  "(only use it if you have a C1VE or C1VN model)");
 121
 122 #ifdef CONFIG_SONYPI_COMPAT
 123 static int minor = -1;
 124 module_param(minor, int, 0);
 125 MODULE_PARM_DESC(minor,
 126                  "minor number of the misc device for the SPIC compatibility code, "
 127                  "default is -1 (automatic)");
 128 #endif
 129
 130 static int kbd_backlight = -1;
 131 module_param(kbd_backlight, int, 0444);
 132 MODULE_PARM_DESC(kbd_backlight,
 133                  "set this to 0 to disable keyboard backlight, "
 134                  "1 to enable it (default: no change from current value)");
 135
 136 static int kbd_backlight_timeout = -1;
 137 module_param(kbd_backlight_timeout, int, 0444);
 138 MODULE_PARM_DESC(kbd_backlight_timeout,
 139                  "meaningful values vary from 0 to 3 and their meaning depends "
 140                  "on the model (default: no change from current value)");
 141
 142 #ifdef CONFIG_PM_SLEEP
 143 static void sony_nc_thermal_resume(void);
 144 #endif
 145 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 146                 unsigned int handle);
 147 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
 148                 unsigned int handle);
 149
 150 static int sony_nc_battery_care_setup(struct platform_device *pd,
 151                 unsigned int handle);
 152 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 153
 154 static int sony_nc_thermal_setup(struct platform_device *pd);
 155 static void sony_nc_thermal_cleanup(struct platform_device *pd);
 156
 157 static int sony_nc_lid_resume_setup(struct platform_device *pd);
 158 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 159
 160 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
 161                 unsigned int handle);
 162 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
 163 static int __sony_nc_gfx_switch_status_get(void);
 164
 165 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 166 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 167
 168 static int sony_nc_touchpad_setup(struct platform_device *pd,
 169                                   unsigned int handle);
 170 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
 171
 172 enum sony_nc_rfkill {
 173         SONY_WIFI,
 174         SONY_BLUETOOTH,
 175         SONY_WWAN,
 176         SONY_WIMAX,
 177         N_SONY_RFKILL,
 178 };
 179
 180 static int sony_rfkill_handle;
 181 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 182 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 183 static int sony_nc_rfkill_setup(struct acpi_device *device,
 184                 unsigned int handle);
 185 static void sony_nc_rfkill_cleanup(void);
 186 static void sony_nc_rfkill_update(void);
 187
 188 /*********** Input Devices ***********/
 189
 190 #define SONY_LAPTOP_BUF_SIZE    128
 191 struct sony_laptop_input_s {
 192         atomic_t                users;
 193         struct input_dev        *jog_dev;
 194         struct input_dev        *key_dev;
 195         struct kfifo            fifo;
 196         spinlock_t              fifo_lock;
 197         struct timer_list       release_key_timer;
 198 };
 199
 200 static struct sony_laptop_input_s sony_laptop_input = {
 201         .users = ATOMIC_INIT(0),
 202 };
 203
 204 struct sony_laptop_keypress {
 205         struct input_dev *dev;
 206         int key;
 207 };
 208
 209 /* Correspondance table between sonypi events
 210  * and input layer indexes in the keymap
 211  */
 212 static int sony_laptop_input_index[] = {
 213         -1,     /*  0 no event */
 214         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 215         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 216         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 217         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 218         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 219         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 220          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 221          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 222          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 223          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 224          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 225          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 226          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 227          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 228          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 229          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 230         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 231         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 232         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 233         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 234         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 235         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 236         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 237         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 238         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 239         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 240         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 241         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 242         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 243         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 244         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 245         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 246         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 247         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 248         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 249         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 250         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 251         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 252         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 253         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 254         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 255         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 256         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 257         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 258         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 259         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 260         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 261         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 262         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 263         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 264         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 265         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 266         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 267         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 268         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 269         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 270         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 271         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 272         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 273         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 274         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 275         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 276         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 277         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 278         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 279         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 280         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 281         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 282         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 283         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 284         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 285         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 286         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 287 };
 288
 289 static int sony_laptop_input_keycode_map[] = {
 290         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 291         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 292         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 293         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 294         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 295         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 296         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 297         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 298         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 299         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 300         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 301         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 302         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 303         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 304         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 305         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 306         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 307         KEY_FN_1,       /* 17 SONYPI_EVENT_FNKEY_1 */
 308         KEY_FN_2,       /* 18 SONYPI_EVENT_FNKEY_2 */
 309         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 310         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 311         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 312         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 313         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 314         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 315         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 316         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 317         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 318         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 319         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 320         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 321         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 322         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 323         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 324         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 325         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 326         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 327         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 328         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 329         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 330         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 331         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 332         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 333         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 334         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 335         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 336         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 337         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 338         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 339         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 340         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 341         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 342         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 343         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 344         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 345         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 346         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 347         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 348         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 349         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 350 };
 351
 352 /* release buttons after a short delay if pressed */
 353 static void do_sony_laptop_release_key(unsigned long unused)
 354 {
 355         struct sony_laptop_keypress kp;
 356         unsigned long flags;
 357
 358         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 359
 360         if (kfifo_out(&sony_laptop_input.fifo,
 361                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 362                 input_report_key(kp.dev, kp.key, 0);
 363                 input_sync(kp.dev);
 364         }
 365
 366         /* If there is something in the fifo schedule next release. */
 367         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 368                 mod_timer(&sony_laptop_input.release_key_timer,
 369                           jiffies + msecs_to_jiffies(10));
 370
 371         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 372 }
 373
 374 /* forward event to the input subsystem */
 375 static void sony_laptop_report_input_event(u8 event)
 376 {
 377         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 378         struct input_dev *key_dev = sony_laptop_input.key_dev;
 379         struct sony_laptop_keypress kp = { NULL };
 380         int scancode = -1;
 381
 382         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 383                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 384                 /* Nothing, not all VAIOs generate this event */
 385                 return;
 386         }
 387
 388         /* report events */
 389         switch (event) {
 390         /* jog_dev events */
 391         case SONYPI_EVENT_JOGDIAL_UP:
 392         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 393                 input_report_rel(jog_dev, REL_WHEEL, 1);
 394                 input_sync(jog_dev);
 395                 return;
 396
 397         case SONYPI_EVENT_JOGDIAL_DOWN:
 398         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 399                 input_report_rel(jog_dev, REL_WHEEL, -1);
 400                 input_sync(jog_dev);
 401                 return;
 402
 403         /* key_dev events */
 404         case SONYPI_EVENT_JOGDIAL_PRESSED:
 405                 kp.key = BTN_MIDDLE;
 406                 kp.dev = jog_dev;
 407                 break;
 408
 409         default:
 410                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 411                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 412                         break;
 413                 }
 414                 if ((scancode = sony_laptop_input_index[event]) != -1) {
 415                         kp.key = sony_laptop_input_keycode_map[scancode];
 416                         if (kp.key != KEY_UNKNOWN)
 417                                 kp.dev = key_dev;
 418                 }
 419                 break;
 420         }
 421
 422         if (kp.dev) {
 423                 /* if we have a scancode we emit it so we can always
 424                     remap the key */
 425                 if (scancode != -1)
 426                         input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
 427                 input_report_key(kp.dev, kp.key, 1);
 428                 input_sync(kp.dev);
 429
 430                 /* schedule key release */
 431                 kfifo_in_locked(&sony_laptop_input.fifo,
 432                                 (unsigned char *)&kp, sizeof(kp),
 433                                 &sony_laptop_input.fifo_lock);
 434                 mod_timer(&sony_laptop_input.release_key_timer,
 435                           jiffies + msecs_to_jiffies(10));
 436         } else
 437                 dprintk("unknown input event %.2x\n", event);
 438 }
 439
 440 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 441 {
 442         struct input_dev *jog_dev;
 443         struct input_dev *key_dev;
 444         int i;
 445         int error;
 446
 447         /* don't run again if already initialized */
 448         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 449                 return 0;
 450
 451         /* kfifo */
 452         spin_lock_init(&sony_laptop_input.fifo_lock);
 453         error = kfifo_alloc(&sony_laptop_input.fifo,
 454                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 455         if (error) {
 456                 pr_err("kfifo_alloc failed\n");
 457                 goto err_dec_users;
 458         }
 459
 460         setup_timer(&sony_laptop_input.release_key_timer,
 461                     do_sony_laptop_release_key, 0);
 462
 463         /* input keys */
 464         key_dev = input_allocate_device();
 465         if (!key_dev) {
 466                 error = -ENOMEM;
 467                 goto err_free_kfifo;
 468         }
 469
 470         key_dev->name = "Sony Vaio Keys";
 471         key_dev->id.bustype = BUS_ISA;
 472         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 473         key_dev->dev.parent = &acpi_device->dev;
 474
 475         /* Initialize the Input Drivers: special keys */
 476         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 477
 478         __set_bit(EV_KEY, key_dev->evbit);
 479         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 480         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 481         key_dev->keycode = &sony_laptop_input_keycode_map;
 482         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 483                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 484         __clear_bit(KEY_RESERVED, key_dev->keybit);
 485
 486         error = input_register_device(key_dev);
 487         if (error)
 488                 goto err_free_keydev;
 489
 490         sony_laptop_input.key_dev = key_dev;
 491
 492         /* jogdial */
 493         jog_dev = input_allocate_device();
 494         if (!jog_dev) {
 495                 error = -ENOMEM;
 496                 goto err_unregister_keydev;
 497         }
 498
 499         jog_dev->name = "Sony Vaio Jogdial";
 500         jog_dev->id.bustype = BUS_ISA;
 501         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 502         jog_dev->dev.parent = &acpi_device->dev;
 503
 504         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 505         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 506
 507         error = input_register_device(jog_dev);
 508         if (error)
 509                 goto err_free_jogdev;
 510
 511         sony_laptop_input.jog_dev = jog_dev;
 512
 513         return 0;
 514
 515 err_free_jogdev:
 516         input_free_device(jog_dev);
 517
 518 err_unregister_keydev:
 519         input_unregister_device(key_dev);
 520         /* to avoid kref underflow below at input_free_device */
 521         key_dev = NULL;
 522
 523 err_free_keydev:
 524         input_free_device(key_dev);
 525
 526 err_free_kfifo:
 527         kfifo_free(&sony_laptop_input.fifo);
 528
 529 err_dec_users:
 530         atomic_dec(&sony_laptop_input.users);
 531         return error;
 532 }
 533
 534 static void sony_laptop_remove_input(void)
 535 {
 536         struct sony_laptop_keypress kp = { NULL };
 537
 538         /* Cleanup only after the last user has gone */
 539         if (!atomic_dec_and_test(&sony_laptop_input.users))
 540                 return;
 541
 542         del_timer_sync(&sony_laptop_input.release_key_timer);
 543
 544         /*
 545          * Generate key-up events for remaining keys. Note that we don't
 546          * need locking since nobody is adding new events to the kfifo.
 547          */
 548         while (kfifo_out(&sony_laptop_input.fifo,
 549                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 550                 input_report_key(kp.dev, kp.key, 0);
 551                 input_sync(kp.dev);
 552         }
 553
 554         /* destroy input devs */
 555         input_unregister_device(sony_laptop_input.key_dev);
 556         sony_laptop_input.key_dev = NULL;
 557
 558         if (sony_laptop_input.jog_dev) {
 559                 input_unregister_device(sony_laptop_input.jog_dev);
 560                 sony_laptop_input.jog_dev = NULL;
 561         }
 562
 563         kfifo_free(&sony_laptop_input.fifo);
 564 }
 565
 566 /*********** Platform Device ***********/
 567
 568 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 569 static struct platform_driver sony_pf_driver = {
 570         .driver = {
 571                    .name = "sony-laptop",
 572                    .owner = THIS_MODULE,
 573                    }
 574 };
 575 static struct platform_device *sony_pf_device;
 576
 577 static int sony_pf_add(void)
 578 {
 579         int ret = 0;
 580
 581         /* don't run again if already initialized */
 582         if (atomic_add_return(1, &sony_pf_users) > 1)
 583                 return 0;
 584
 585         ret = platform_driver_register(&sony_pf_driver);
 586         if (ret)
 587                 goto out;
 588
 589         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 590         if (!sony_pf_device) {
 591                 ret = -ENOMEM;
 592                 goto out_platform_registered;
 593         }
 594
 595         ret = platform_device_add(sony_pf_device);
 596         if (ret)
 597                 goto out_platform_alloced;
 598
 599         return 0;
 600
 601       out_platform_alloced:
 602         platform_device_put(sony_pf_device);
 603         sony_pf_device = NULL;
 604       out_platform_registered:
 605         platform_driver_unregister(&sony_pf_driver);
 606       out:
 607         atomic_dec(&sony_pf_users);
 608         return ret;
 609 }
 610
 611 static void sony_pf_remove(void)
 612 {
 613         /* deregister only after the last user has gone */
 614         if (!atomic_dec_and_test(&sony_pf_users))
 615                 return;
 616
 617         platform_device_unregister(sony_pf_device);
 618         platform_driver_unregister(&sony_pf_driver);
 619 }
 620
 621 /*********** SNC (SNY5001) Device ***********/
 622
 623 /* the device uses 1-based values, while the backlight subsystem uses
 624    0-based values */
 625 #define SONY_MAX_BRIGHTNESS     8
 626
 627 #define SNC_VALIDATE_IN         0
 628 #define SNC_VALIDATE_OUT        1
 629
 630 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 631                               char *);
 632 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 633                                const char *, size_t);
 634 static int boolean_validate(const int, const int);
 635 static int brightness_default_validate(const int, const int);
 636
 637 struct sony_nc_value {
 638         char *name;             /* name of the entry */
 639         char **acpiget;         /* names of the ACPI get function */
 640         char **acpiset;         /* names of the ACPI set function */
 641         int (*validate)(const int, const int);  /* input/output validation */
 642         int value;              /* current setting */
 643         int valid;              /* Has ever been set */
 644         int debug;              /* active only in debug mode ? */
 645         struct device_attribute devattr;        /* sysfs attribute */
 646 };
 647
 648 #define SNC_HANDLE_NAMES(_name, _values...) \
 649         static char *snc_##_name[] = { _values, NULL }
 650
 651 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 652         { \
 653                 .name           = __stringify(_name), \
 654                 .acpiget        = _getters, \
 655                 .acpiset        = _setters, \
 656                 .validate       = _validate, \
 657                 .debug          = _debug, \
 658                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 659         }
 660
 661 #define SNC_HANDLE_NULL { .name = NULL }
 662
 663 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 664
 665 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 666 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 667
 668 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 669 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 670
 671 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 672 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 673
 674 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 675 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 676
 677 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 678
 679 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 680 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 681
 682 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 683 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 684
 685 SNC_HANDLE_NAMES(PID_get, "GPID");
 686
 687 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 688 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 689
 690 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 691 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 692
 693 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 694 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 695
 696 static struct sony_nc_value sony_nc_values[] = {
 697         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 698                         snc_brightness_def_set, brightness_default_validate, 0),
 699         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 700         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 701         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 702                         boolean_validate, 0),
 703         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 704                         boolean_validate, 1),
 705         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 706                         boolean_validate, 0),
 707         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 708                         boolean_validate, 0),
 709         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 710                         boolean_validate, 0),
 711         /* unknown methods */
 712         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 713         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 714         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 715         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 716         SNC_HANDLE_NULL
 717 };
 718
 719 static acpi_handle sony_nc_acpi_handle;
 720 static struct acpi_device *sony_nc_acpi_device = NULL;
 721
 722 /*
 723  * acpi_evaluate_object wrappers
 724  * all useful calls into SNC methods take one or zero parameters and return
 725  * integers or arrays.
 726  */
 727 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
 728                 u64 *value)
 729 {
 730         union acpi_object *result = NULL;
 731         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 732         acpi_status status;
 733
 734         if (value) {
 735                 struct acpi_object_list params;
 736                 union acpi_object in;
 737                 in.type = ACPI_TYPE_INTEGER;
 738                 in.integer.value = *value;
 739                 params.count = 1;
 740                 params.pointer = &in;
 741                 status = acpi_evaluate_object(handle, method, &params, &output);
 742                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
 743                                 (unsigned int)(*value >> 32),
 744                                 (unsigned int)*value & 0xffffffff);
 745         } else {
 746                 status = acpi_evaluate_object(handle, method, NULL, &output);
 747                 dprintk("__call_snc_method: [%s]\n", method);
 748         }
 749
 750         if (ACPI_FAILURE(status)) {
 751                 pr_err("Failed to evaluate [%s]\n", method);
 752                 return NULL;
 753         }
 754
 755         result = (union acpi_object *) output.pointer;
 756         if (!result)
 757                 dprintk("No return object [%s]\n", method);
 758
 759         return result;
 760 }
 761
 762 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
 763                 int *result)
 764 {
 765         union acpi_object *object = NULL;
 766         if (value) {
 767                 u64 v = *value;
 768                 object = __call_snc_method(handle, name, &v);
 769         } else
 770                 object = __call_snc_method(handle, name, NULL);
 771
 772         if (!object)
 773                 return -EINVAL;
 774
 775         if (object->type != ACPI_TYPE_INTEGER) {
 776                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 777                                 ACPI_TYPE_INTEGER, object->type);
 778                 kfree(object);
 779                 return -EINVAL;
 780         }
 781
 782         if (result)
 783                 *result = object->integer.value;
 784
 785         kfree(object);
 786         return 0;
 787 }
 788
 789 #define MIN(a, b)       (a > b ? b : a)
 790 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
 791                 void *buffer, size_t buflen)
 792 {
 793         int ret = 0;
 794         size_t len = len;
 795         union acpi_object *object = __call_snc_method(handle, name, value);
 796
 797         if (!object)
 798                 return -EINVAL;
 799
 800         if (object->type == ACPI_TYPE_BUFFER) {
 801                 len = MIN(buflen, object->buffer.length);
 802                 memcpy(buffer, object->buffer.pointer, len);
 803
 804         } else if (object->type == ACPI_TYPE_INTEGER) {
 805                 len = MIN(buflen, sizeof(object->integer.value));
 806                 memcpy(buffer, &object->integer.value, len);
 807
 808         } else {
 809                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 810                                 ACPI_TYPE_BUFFER, object->type);
 811                 ret = -EINVAL;
 812         }
 813
 814         kfree(object);
 815         return ret;
 816 }
 817
 818 struct sony_nc_handles {
 819         u16 cap[0x10];
 820         struct device_attribute devattr;
 821 };
 822
 823 static struct sony_nc_handles *handles;
 824
 825 static ssize_t sony_nc_handles_show(struct device *dev,
 826                 struct device_attribute *attr, char *buffer)
 827 {
 828         ssize_t len = 0;
 829         int i;
 830
 831         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 832                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 833                                 handles->cap[i]);
 834         }
 835         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 836
 837         return len;
 838 }
 839
 840 static int sony_nc_handles_setup(struct platform_device *pd)
 841 {
 842         int i, r, result, arg;
 843
 844         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 845         if (!handles)
 846                 return -ENOMEM;
 847
 848         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 849                 arg = i + 0x20;
 850                 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
 851                                         &result);
 852                 if (!r) {
 853                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 854                                         result, i);
 855                         handles->cap[i] = result;
 856                 }
 857         }
 858
 859         if (debug) {
 860                 sysfs_attr_init(&handles->devattr.attr);
 861                 handles->devattr.attr.name = "handles";
 862                 handles->devattr.attr.mode = S_IRUGO;
 863                 handles->devattr.show = sony_nc_handles_show;
 864
 865                 /* allow reading capabilities via sysfs */
 866                 if (device_create_file(&pd->dev, &handles->devattr)) {
 867                         kfree(handles);
 868                         handles = NULL;
 869                         return -1;
 870                 }
 871         }
 872
 873         return 0;
 874 }
 875
 876 static int sony_nc_handles_cleanup(struct platform_device *pd)
 877 {
 878         if (handles) {
 879                 if (debug)
 880                         device_remove_file(&pd->dev, &handles->devattr);
 881                 kfree(handles);
 882                 handles = NULL;
 883         }
 884         return 0;
 885 }
 886
 887 static int sony_find_snc_handle(int handle)
 888 {
 889         int i;
 890
 891         /* not initialized yet, return early */
 892         if (!handles || !handle)
 893                 return -EINVAL;
 894
 895         for (i = 0; i < 0x10; i++) {
 896                 if (handles->cap[i] == handle) {
 897                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 898                                         handle, i);
 899                         return i;
 900                 }
 901         }
 902         dprintk("handle 0x%.4x not found\n", handle);
 903         return -EINVAL;
 904 }
 905
 906 static int sony_call_snc_handle(int handle, int argument, int *result)
 907 {
 908         int arg, ret = 0;
 909         int offset = sony_find_snc_handle(handle);
 910
 911         if (offset < 0)
 912                 return offset;
 913
 914         arg = offset | argument;
 915         ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
 916         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
 917         return ret;
 918 }
 919
 920 /*
 921  * sony_nc_values input/output validate functions
 922  */
 923
 924 /* brightness_default_validate:
 925  *
 926  * manipulate input output values to keep consistency with the
 927  * backlight framework for which brightness values are 0-based.
 928  */
 929 static int brightness_default_validate(const int direction, const int value)
 930 {
 931         switch (direction) {
 932                 case SNC_VALIDATE_OUT:
 933                         return value - 1;
 934                 case SNC_VALIDATE_IN:
 935                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 936                                 return value + 1;
 937         }
 938         return -EINVAL;
 939 }
 940
 941 /* boolean_validate:
 942  *
 943  * on input validate boolean values 0/1, on output just pass the
 944  * received value.
 945  */
 946 static int boolean_validate(const int direction, const int value)
 947 {
 948         if (direction == SNC_VALIDATE_IN) {
 949                 if (value != 0 && value != 1)
 950                         return -EINVAL;
 951         }
 952         return value;
 953 }
 954
 955 /*
 956  * Sysfs show/store common to all sony_nc_values
 957  */
 958 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 959                               char *buffer)
 960 {
 961         int value, ret = 0;
 962         struct sony_nc_value *item =
 963             container_of(attr, struct sony_nc_value, devattr);
 964
 965         if (!*item->acpiget)
 966                 return -EIO;
 967
 968         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
 969                                 &value);
 970         if (ret < 0)
 971                 return -EIO;
 972
 973         if (item->validate)
 974                 value = item->validate(SNC_VALIDATE_OUT, value);
 975
 976         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 977 }
 978
 979 static ssize_t sony_nc_sysfs_store(struct device *dev,
 980                                struct device_attribute *attr,
 981                                const char *buffer, size_t count)
 982 {
 983         int value;
 984         int ret = 0;
 985         struct sony_nc_value *item =
 986             container_of(attr, struct sony_nc_value, devattr);
 987
 988         if (!item->acpiset)
 989                 return -EIO;
 990
 991         if (count > 31)
 992                 return -EINVAL;
 993
 994         if (kstrtoint(buffer, 10, &value))
 995                 return -EINVAL;
 996
 997         if (item->validate)
 998                 value = item->validate(SNC_VALIDATE_IN, value);
 999
1000         if (value < 0)
1001                 return value;
1002
1003         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1004                                &value, NULL);
1005         if (ret < 0)
1006                 return -EIO;
1007
1008         item->value = value;
1009         item->valid = 1;
1010         return count;
1011 }
1012
1013
1014 /*
1015  * Backlight device
1016  */
1017 struct sony_backlight_props {
1018         struct backlight_device *dev;
1019         int                     handle;
1020         int                     cmd_base;
1021         u8                      offset;
1022         u8                      maxlvl;
1023 };
1024 struct sony_backlight_props sony_bl_props;
1025
1026 static int sony_backlight_update_status(struct backlight_device *bd)
1027 {
1028         int arg = bd->props.brightness + 1;
1029         return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1030 }
1031
1032 static int sony_backlight_get_brightness(struct backlight_device *bd)
1033 {
1034         int value;
1035
1036         if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1037                 return 0;
1038         /* brightness levels are 1-based, while backlight ones are 0-based */
1039         return value - 1;
1040 }
1041
1042 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1043 {
1044         int result;
1045         struct sony_backlight_props *sdev =
1046                 (struct sony_backlight_props *)bl_get_data(bd);
1047
1048         sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1049
1050         return (result & 0xff) - sdev->offset;
1051 }
1052
1053 static int sony_nc_update_status_ng(struct backlight_device *bd)
1054 {
1055         int value, result;
1056         struct sony_backlight_props *sdev =
1057                 (struct sony_backlight_props *)bl_get_data(bd);
1058
1059         value = bd->props.brightness + sdev->offset;
1060         if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1061                                 &result))
1062                 return -EIO;
1063
1064         return value;
1065 }
1066
1067 static const struct backlight_ops sony_backlight_ops = {
1068         .options = BL_CORE_SUSPENDRESUME,
1069         .update_status = sony_backlight_update_status,
1070         .get_brightness = sony_backlight_get_brightness,
1071 };
1072 static const struct backlight_ops sony_backlight_ng_ops = {
1073         .options = BL_CORE_SUSPENDRESUME,
1074         .update_status = sony_nc_update_status_ng,
1075         .get_brightness = sony_nc_get_brightness_ng,
1076 };
1077
1078 /*
1079  * New SNC-only Vaios event mapping to driver known keys
1080  */
1081 struct sony_nc_event {
1082         u8      data;
1083         u8      event;
1084 };
1085
1086 static struct sony_nc_event sony_100_events[] = {
1087         { 0x90, SONYPI_EVENT_PKEY_P1 },
1088         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1089         { 0x91, SONYPI_EVENT_PKEY_P2 },
1090         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1091         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1092         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1093         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1094         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1095         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1096         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1097         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1098         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1099         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1100         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1101         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1102         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1103         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1104         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1105         { 0x88, SONYPI_EVENT_FNKEY_F8 },
1106         { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1107         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1108         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1109         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1110         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1111         { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1112         { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1113         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1114         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1115         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1116         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1118         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1120         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1121         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1122         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1123         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1124         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1125         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1126         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1127         { 0, 0 },
1128 };
1129
1130 static struct sony_nc_event sony_127_events[] = {
1131         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1132         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133         { 0x82, SONYPI_EVENT_PKEY_P1 },
1134         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135         { 0x83, SONYPI_EVENT_PKEY_P2 },
1136         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137         { 0x84, SONYPI_EVENT_PKEY_P3 },
1138         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1139         { 0x85, SONYPI_EVENT_PKEY_P4 },
1140         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1141         { 0x86, SONYPI_EVENT_PKEY_P5 },
1142         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1143         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1144         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1145         { 0, 0 },
1146 };
1147
1148 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1149 {
1150         int ret = -EINVAL;
1151         unsigned int result = 0;
1152         struct sony_nc_event *key_event;
1153
1154         if (sony_call_snc_handle(handle, 0x200, &result)) {
1155                 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1156                                 event);
1157                 return -EINVAL;
1158         }
1159
1160         result &= 0xFF;
1161
1162         if (handle == 0x0100)
1163                 key_event = sony_100_events;
1164         else
1165                 key_event = sony_127_events;
1166
1167         for (; key_event->data; key_event++) {
1168                 if (key_event->data == result) {
1169                         ret = key_event->event;
1170                         break;
1171                 }
1172         }
1173
1174         if (!key_event->data)
1175                 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1176                                 event, result, handle);
1177
1178         return ret;
1179 }
1180
1181 /*
1182  * ACPI callbacks
1183  */
1184 enum event_types {
1185         HOTKEY = 1,
1186         KILLSWITCH,
1187         GFX_SWITCH
1188 };
1189 static void sony_nc_notify(struct acpi_device *device, u32 event)
1190 {
1191         u32 real_ev = event;
1192         u8 ev_type = 0;
1193         dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1194
1195         if (event >= 0x90) {
1196                 unsigned int result = 0;
1197                 unsigned int arg = 0;
1198                 unsigned int handle = 0;
1199                 unsigned int offset = event - 0x90;
1200
1201                 if (offset >= ARRAY_SIZE(handles->cap)) {
1202                         pr_err("Event 0x%x outside of capabilities list\n",
1203                                         event);
1204                         return;
1205                 }
1206                 handle = handles->cap[offset];
1207
1208                 /* list of handles known for generating events */
1209                 switch (handle) {
1210                 /* hotkey event */
1211                 case 0x0100:
1212                 case 0x0127:
1213                         ev_type = HOTKEY;
1214                         real_ev = sony_nc_hotkeys_decode(event, handle);
1215
1216                         if (real_ev > 0)
1217                                 sony_laptop_report_input_event(real_ev);
1218                         else
1219                                 /* restore the original event for reporting */
1220                                 real_ev = event;
1221
1222                         break;
1223
1224                 /* wlan switch */
1225                 case 0x0124:
1226                 case 0x0135:
1227                         /* events on this handle are reported when the
1228                          * switch changes position or for battery
1229                          * events. We'll notify both of them but only
1230                          * update the rfkill device status when the
1231                          * switch is moved.
1232                          */
1233                         ev_type = KILLSWITCH;
1234                         sony_call_snc_handle(handle, 0x0100, &result);
1235                         real_ev = result & 0x03;
1236
1237                         /* hw switch event */
1238                         if (real_ev == 1)
1239                                 sony_nc_rfkill_update();
1240
1241                         break;
1242
1243                 case 0x0128:
1244                 case 0x0146:
1245                         /* Hybrid GFX switching */
1246                         sony_call_snc_handle(handle, 0x0000, &result);
1247                         dprintk("GFX switch event received (reason: %s)\n",
1248                                         (result == 0x1) ? "switch change" :
1249                                         (result == 0x2) ? "output switch" :
1250                                         (result == 0x3) ? "output switch" :
1251                                         "");
1252
1253                         ev_type = GFX_SWITCH;
1254                         real_ev = __sony_nc_gfx_switch_status_get();
1255                         break;
1256
1257                 case 0x015B:
1258                         /* Hybrid GFX switching SVS151290S */
1259                         ev_type = GFX_SWITCH;
1260                         real_ev = __sony_nc_gfx_switch_status_get();
1261                         break;
1262                 default:
1263                         dprintk("Unknown event 0x%x for handle 0x%x\n",
1264                                         event, handle);
1265                         break;
1266                 }
1267
1268                 /* clear the event (and the event reason when present) */
1269                 arg = 1 << offset;
1270                 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1271
1272         } else {
1273                 /* old style event */
1274                 ev_type = HOTKEY;
1275                 sony_laptop_report_input_event(real_ev);
1276         }
1277         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1278                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1279 }
1280
1281 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1282                                       void *context, void **return_value)
1283 {
1284         struct acpi_device_info *info;
1285
1286         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1287                 pr_warn("method: name: %4.4s, args %X\n",
1288                         (char *)&info->name, info->param_count);
1289
1290                 kfree(info);
1291         }
1292
1293         return AE_OK;
1294 }
1295
1296 /*
1297  * ACPI device
1298  */
1299 static void sony_nc_function_setup(struct acpi_device *device,
1300                 struct platform_device *pf_device)
1301 {
1302         unsigned int i, result, bitmask, arg;
1303
1304         if (!handles)
1305                 return;
1306
1307         /* setup found handles here */
1308         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1309                 unsigned int handle = handles->cap[i];
1310
1311                 if (!handle)
1312                         continue;
1313
1314                 dprintk("setting up handle 0x%.4x\n", handle);
1315
1316                 switch (handle) {
1317                 case 0x0100:
1318                 case 0x0101:
1319                 case 0x0127:
1320                         /* setup hotkeys */
1321                         sony_call_snc_handle(handle, 0, &result);
1322                         break;
1323                 case 0x0102:
1324                         /* setup hotkeys */
1325                         sony_call_snc_handle(handle, 0x100, &result);
1326                         break;
1327                 case 0x0105:
1328                 case 0x0148:
1329                         /* touchpad enable/disable */
1330                         result = sony_nc_touchpad_setup(pf_device, handle);
1331                         if (result)
1332                                 pr_err("couldn't set up touchpad control function (%d)\n",
1333                                                 result);
1334                         break;
1335                 case 0x0115:
1336                 case 0x0136:
1337                 case 0x013f:
1338                         result = sony_nc_battery_care_setup(pf_device, handle);
1339                         if (result)
1340                                 pr_err("couldn't set up battery care function (%d)\n",
1341                                                 result);
1342                         break;
1343                 case 0x0119:
1344                         result = sony_nc_lid_resume_setup(pf_device);
1345                         if (result)
1346                                 pr_err("couldn't set up lid resume function (%d)\n",
1347                                                 result);
1348                         break;
1349                 case 0x0122:
1350                         result = sony_nc_thermal_setup(pf_device);
1351                         if (result)
1352                                 pr_err("couldn't set up thermal profile function (%d)\n",
1353                                                 result);
1354                         break;
1355                 case 0x0128:
1356                 case 0x0146:
1357                 case 0x015B:
1358                         result = sony_nc_gfx_switch_setup(pf_device, handle);
1359                         if (result)
1360                                 pr_err("couldn't set up GFX Switch status (%d)\n",
1361                                                 result);
1362                         break;
1363                 case 0x0131:
1364                         result = sony_nc_highspeed_charging_setup(pf_device);
1365                         if (result)
1366                                 pr_err("couldn't set up high speed charging function (%d)\n",
1367                                        result);
1368                         break;
1369                 case 0x0124:
1370                 case 0x0135:
1371                         result = sony_nc_rfkill_setup(device, handle);
1372                         if (result)
1373                                 pr_err("couldn't set up rfkill support (%d)\n",
1374                                                 result);
1375                         break;
1376                 case 0x0137:
1377                 case 0x0143:
1378                 case 0x014b:
1379                 case 0x014c:
1380                 case 0x0163:
1381                         result = sony_nc_kbd_backlight_setup(pf_device, handle);
1382                         if (result)
1383                                 pr_err("couldn't set up keyboard backlight function (%d)\n",
1384                                                 result);
1385                         break;
1386                 default:
1387                         continue;
1388                 }
1389         }
1390
1391         /* Enable all events */
1392         arg = 0x10;
1393         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1394                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1395                                 &result);
1396 }
1397
1398 static void sony_nc_function_cleanup(struct platform_device *pd)
1399 {
1400         unsigned int i, result, bitmask, handle;
1401
1402         /* get enabled events and disable them */
1403         sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1404         sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1405
1406         /* cleanup handles here */
1407         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1408
1409                 handle = handles->cap[i];
1410
1411                 if (!handle)
1412                         continue;
1413
1414                 switch (handle) {
1415                 case 0x0105:
1416                 case 0x0148:
1417                         sony_nc_touchpad_cleanup(pd);
1418                         break;
1419                 case 0x0115:
1420                 case 0x0136:
1421                 case 0x013f:
1422                         sony_nc_battery_care_cleanup(pd);
1423                         break;
1424                 case 0x0119:
1425                         sony_nc_lid_resume_cleanup(pd);
1426                         break;
1427                 case 0x0122:
1428                         sony_nc_thermal_cleanup(pd);
1429                         break;
1430                 case 0x0128:
1431                 case 0x0146:
1432                 case 0x015B:
1433                         sony_nc_gfx_switch_cleanup(pd);
1434                         break;
1435                 case 0x0131:
1436                         sony_nc_highspeed_charging_cleanup(pd);
1437                         break;
1438                 case 0x0124:
1439                 case 0x0135:
1440                         sony_nc_rfkill_cleanup();
1441                         break;
1442                 case 0x0137:
1443                 case 0x0143:
1444                 case 0x014b:
1445                 case 0x014c:
1446                 case 0x0163:
1447                         sony_nc_kbd_backlight_cleanup(pd, handle);
1448                         break;
1449                 default:
1450                         continue;
1451                 }
1452         }
1453
1454         /* finally cleanup the handles list */
1455         sony_nc_handles_cleanup(pd);
1456 }
1457
1458 #ifdef CONFIG_PM_SLEEP
1459 static void sony_nc_function_resume(void)
1460 {
1461         unsigned int i, result, bitmask, arg;
1462
1463         dprintk("Resuming SNC device\n");
1464
1465         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1466                 unsigned int handle = handles->cap[i];
1467
1468                 if (!handle)
1469                         continue;
1470
1471                 switch (handle) {
1472                 case 0x0100:
1473                 case 0x0101:
1474                 case 0x0127:
1475                         /* re-enable hotkeys */
1476                         sony_call_snc_handle(handle, 0, &result);
1477                         break;
1478                 case 0x0102:
1479                         /* re-enable hotkeys */
1480                         sony_call_snc_handle(handle, 0x100, &result);
1481                         break;
1482                 case 0x0122:
1483                         sony_nc_thermal_resume();
1484                         break;
1485                 case 0x0124:
1486                 case 0x0135:
1487                         sony_nc_rfkill_update();
1488                         break;
1489                 default:
1490                         continue;
1491                 }
1492         }
1493
1494         /* Enable all events */
1495         arg = 0x10;
1496         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1497                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1498                                 &result);
1499 }
1500
1501 static int sony_nc_resume(struct device *dev)
1502 {
1503         struct sony_nc_value *item;
1504
1505         for (item = sony_nc_values; item->name; item++) {
1506                 int ret;
1507
1508                 if (!item->valid)
1509                         continue;
1510                 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1511                                        &item->value, NULL);
1512                 if (ret < 0) {
1513                         pr_err("%s: %d\n", __func__, ret);
1514                         break;
1515                 }
1516         }
1517
1518         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1519                 int arg = 1;
1520                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1521                         dprintk("ECON Method failed\n");
1522         }
1523
1524         if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1525                 sony_nc_function_resume();
1526
1527         return 0;
1528 }
1529 #endif
1530
1531 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1532
1533 static void sony_nc_rfkill_cleanup(void)
1534 {
1535         int i;
1536
1537         for (i = 0; i < N_SONY_RFKILL; i++) {
1538                 if (sony_rfkill_devices[i]) {
1539                         rfkill_unregister(sony_rfkill_devices[i]);
1540                         rfkill_destroy(sony_rfkill_devices[i]);
1541                 }
1542         }
1543 }
1544
1545 static int sony_nc_rfkill_set(void *data, bool blocked)
1546 {
1547         int result;
1548         int argument = sony_rfkill_address[(long) data] + 0x100;
1549
1550         if (!blocked)
1551                 argument |= 0x070000;
1552
1553         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1554 }
1555
1556 static const struct rfkill_ops sony_rfkill_ops = {
1557         .set_block = sony_nc_rfkill_set,
1558 };
1559
1560 static int sony_nc_setup_rfkill(struct acpi_device *device,
1561                                 enum sony_nc_rfkill nc_type)
1562 {
1563         int err = 0;
1564         struct rfkill *rfk;
1565         enum rfkill_type type;
1566         const char *name;
1567         int result;
1568         bool hwblock, swblock;
1569
1570         switch (nc_type) {
1571         case SONY_WIFI:
1572                 type = RFKILL_TYPE_WLAN;
1573                 name = "sony-wifi";
1574                 break;
1575         case SONY_BLUETOOTH:
1576                 type = RFKILL_TYPE_BLUETOOTH;
1577                 name = "sony-bluetooth";
1578                 break;
1579         case SONY_WWAN:
1580                 type = RFKILL_TYPE_WWAN;
1581                 name = "sony-wwan";
1582                 break;
1583         case SONY_WIMAX:
1584                 type = RFKILL_TYPE_WIMAX;
1585                 name = "sony-wimax";
1586                 break;
1587         default:
1588                 return -EINVAL;
1589         }
1590
1591         rfk = rfkill_alloc(name, &device->dev, type,
1592                            &sony_rfkill_ops, (void *)nc_type);
1593         if (!rfk)
1594                 return -ENOMEM;
1595
1596         if (sony_call_snc_handle(sony_rfkill_handle, 0x200, &result) < 0) {
1597                 rfkill_destroy(rfk);
1598                 return -1;
1599         }
1600         hwblock = !(result & 0x1);
1601
1602         if (sony_call_snc_handle(sony_rfkill_handle,
1603                                 sony_rfkill_address[nc_type],
1604                                 &result) < 0) {
1605                 rfkill_destroy(rfk);
1606                 return -1;
1607         }
1608         swblock = !(result & 0x2);
1609
1610         rfkill_init_sw_state(rfk, swblock);
1611         rfkill_set_hw_state(rfk, hwblock);
1612
1613         err = rfkill_register(rfk);
1614         if (err) {
1615                 rfkill_destroy(rfk);
1616                 return err;
1617         }
1618         sony_rfkill_devices[nc_type] = rfk;
1619         return err;
1620 }
1621
1622 static void sony_nc_rfkill_update(void)
1623 {
1624         enum sony_nc_rfkill i;
1625         int result;
1626         bool hwblock;
1627
1628         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1629         hwblock = !(result & 0x1);
1630
1631         for (i = 0; i < N_SONY_RFKILL; i++) {
1632                 int argument = sony_rfkill_address[i];
1633
1634                 if (!sony_rfkill_devices[i])
1635                         continue;
1636
1637                 if (hwblock) {
1638                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1639                                 /* we already know we're blocked */
1640                         }
1641                         continue;
1642                 }
1643
1644                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1645                 rfkill_set_states(sony_rfkill_devices[i],
1646                                   !(result & 0x2), false);
1647         }
1648 }
1649
1650 static int sony_nc_rfkill_setup(struct acpi_device *device,
1651                 unsigned int handle)
1652 {
1653         u64 offset;
1654         int i;
1655         unsigned char buffer[32] = { 0 };
1656
1657         offset = sony_find_snc_handle(handle);
1658         sony_rfkill_handle = handle;
1659
1660         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1661                         32);
1662         if (i < 0)
1663                 return i;
1664
1665         /* The buffer is filled with magic numbers describing the devices
1666          * available, 0xff terminates the enumeration.
1667          * Known codes:
1668          *      0x00 WLAN
1669          *      0x10 BLUETOOTH
1670          *      0x20 WWAN GPRS-EDGE
1671          *      0x21 WWAN HSDPA
1672          *      0x22 WWAN EV-DO
1673          *      0x23 WWAN GPS
1674          *      0x25 Gobi WWAN no GPS
1675          *      0x26 Gobi WWAN + GPS
1676          *      0x28 Gobi WWAN no GPS
1677          *      0x29 Gobi WWAN + GPS
1678          *      0x30 WIMAX
1679          *      0x50 Gobi WWAN no GPS
1680          *      0x51 Gobi WWAN + GPS
1681          *      0x70 no SIM card slot
1682          *      0x71 SIM card slot
1683          */
1684         for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1685
1686                 if (buffer[i] == 0xff)
1687                         break;
1688
1689                 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1690
1691                 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1692                         sony_nc_setup_rfkill(device, SONY_WIFI);
1693
1694                 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1695                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1696
1697                 if (((0xf0 & buffer[i]) == 0x20 ||
1698                                         (0xf0 & buffer[i]) == 0x50) &&
1699                                 !sony_rfkill_devices[SONY_WWAN])
1700                         sony_nc_setup_rfkill(device, SONY_WWAN);
1701
1702                 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1703                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1704         }
1705         return 0;
1706 }
1707
1708 /* Keyboard backlight feature */
1709 struct kbd_backlight {
1710         unsigned int handle;
1711         unsigned int base;
1712         unsigned int mode;
1713         unsigned int timeout;
1714         struct device_attribute mode_attr;
1715         struct device_attribute timeout_attr;
1716 };
1717
1718 static struct kbd_backlight *kbdbl_ctl;
1719
1720 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1721 {
1722         int result;
1723
1724         if (value > 1)
1725                 return -EINVAL;
1726
1727         if (sony_call_snc_handle(kbdbl_ctl->handle,
1728                                 (value << 0x10) | (kbdbl_ctl->base), &result))
1729                 return -EIO;
1730
1731         /* Try to turn the light on/off immediately */
1732         sony_call_snc_handle(kbdbl_ctl->handle,
1733                         (value << 0x10) | (kbdbl_ctl->base + 0x100), &result);
1734
1735         kbdbl_ctl->mode = value;
1736
1737         return 0;
1738 }
1739
1740 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1741                 struct device_attribute *attr,
1742                 const char *buffer, size_t count)
1743 {
1744         int ret = 0;
1745         unsigned long value;
1746
1747         if (count > 31)
1748                 return -EINVAL;
1749
1750         if (kstrtoul(buffer, 10, &value))
1751                 return -EINVAL;
1752
1753         ret = __sony_nc_kbd_backlight_mode_set(value);
1754         if (ret < 0)
1755                 return ret;
1756
1757         return count;
1758 }
1759
1760 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1761                 struct device_attribute *attr, char *buffer)
1762 {
1763         ssize_t count = 0;
1764         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1765         return count;
1766 }
1767
1768 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1769 {
1770         int result;
1771
1772         if (value > 3)
1773                 return -EINVAL;
1774
1775         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1776                                 (kbdbl_ctl->base + 0x200), &result))
1777                 return -EIO;
1778
1779         kbdbl_ctl->timeout = value;
1780
1781         return 0;
1782 }
1783
1784 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1785                 struct device_attribute *attr,
1786                 const char *buffer, size_t count)
1787 {
1788         int ret = 0;
1789         unsigned long value;
1790
1791         if (count > 31)
1792                 return -EINVAL;
1793
1794         if (kstrtoul(buffer, 10, &value))
1795                 return -EINVAL;
1796
1797         ret = __sony_nc_kbd_backlight_timeout_set(value);
1798         if (ret < 0)
1799                 return ret;
1800
1801         return count;
1802 }
1803
1804 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1805                 struct device_attribute *attr, char *buffer)
1806 {
1807         ssize_t count = 0;
1808         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1809         return count;
1810 }
1811
1812 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1813                 unsigned int handle)
1814 {
1815         int result;
1816         int ret = 0;
1817
1818         if (kbdbl_ctl) {
1819                 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1820                                 handle, kbdbl_ctl->handle);
1821                 return -EBUSY;
1822         }
1823
1824         /* verify the kbd backlight presence, these handles are not used for
1825          * keyboard backlight only
1826          */
1827         ret = sony_call_snc_handle(handle, handle == 0x0137 ? 0x0B00 : 0x0100,
1828                         &result);
1829         if (ret)
1830                 return ret;
1831
1832         if ((handle == 0x0137 && !(result & 0x02)) ||
1833                         !(result & 0x01)) {
1834                 dprintk("no backlight keyboard found\n");
1835                 return 0;
1836         }
1837
1838         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1839         if (!kbdbl_ctl)
1840                 return -ENOMEM;
1841
1842         kbdbl_ctl->mode = kbd_backlight;
1843         kbdbl_ctl->timeout = kbd_backlight_timeout;
1844         kbdbl_ctl->handle = handle;
1845         if (handle == 0x0137)
1846                 kbdbl_ctl->base = 0x0C00;
1847         else
1848                 kbdbl_ctl->base = 0x4000;
1849
1850         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1851         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1852         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1853         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1854         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1855
1856         sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1857         kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1858         kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1859         kbdbl_ctl->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1860         kbdbl_ctl->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1861
1862         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1863         if (ret)
1864                 goto outkzalloc;
1865
1866         ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1867         if (ret)
1868                 goto outmode;
1869
1870         __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1871         __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1872
1873         return 0;
1874
1875 outmode:
1876         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1877 outkzalloc:
1878         kfree(kbdbl_ctl);
1879         kbdbl_ctl = NULL;
1880         return ret;
1881 }
1882
1883 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1884                 unsigned int handle)
1885 {
1886         if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1887                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1888                 device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1889                 kfree(kbdbl_ctl);
1890                 kbdbl_ctl = NULL;
1891         }
1892 }
1893
1894 struct battery_care_control {
1895         struct device_attribute attrs[2];
1896         unsigned int handle;
1897 };
1898 static struct battery_care_control *bcare_ctl;
1899
1900 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1901                 struct device_attribute *attr,
1902                 const char *buffer, size_t count)
1903 {
1904         unsigned int result, cmd;
1905         unsigned long value;
1906
1907         if (count > 31)
1908                 return -EINVAL;
1909
1910         if (kstrtoul(buffer, 10, &value))
1911                 return -EINVAL;
1912
1913         /*  limit values (2 bits):
1914          *  00 - none
1915          *  01 - 80%
1916          *  10 - 50%
1917          *  11 - 100%
1918          *
1919          *  bit 0: 0 disable BCL, 1 enable BCL
1920          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1921          *  bits 2,3: reserved
1922          *  bits 4,5: store the limit into the EC
1923          *  bits 6,7: store the limit into the battery
1924          */
1925         cmd = 0;
1926
1927         if (value > 0) {
1928                 if (value <= 50)
1929                         cmd = 0x20;
1930
1931                 else if (value <= 80)
1932                         cmd = 0x10;
1933
1934                 else if (value <= 100)
1935                         cmd = 0x30;
1936
1937                 else
1938                         return -EINVAL;
1939
1940                 /*
1941                  * handle 0x0115 should allow storing on battery too;
1942                  * handle 0x0136 same as 0x0115 + health status;
1943                  * handle 0x013f, same as 0x0136 but no storing on the battery
1944                  */
1945                 if (bcare_ctl->handle != 0x013f)
1946                         cmd = cmd | (cmd << 2);
1947
1948                 cmd = (cmd | 0x1) << 0x10;
1949         }
1950
1951         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
1952                 return -EIO;
1953
1954         return count;
1955 }
1956
1957 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
1958                 struct device_attribute *attr, char *buffer)
1959 {
1960         unsigned int result, status;
1961
1962         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
1963                 return -EIO;
1964
1965         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
1966         switch (status) {
1967         case 1:
1968                 status = 80;
1969                 break;
1970         case 2:
1971                 status = 50;
1972                 break;
1973         case 3:
1974                 status = 100;
1975                 break;
1976         default:
1977                 status = 0;
1978                 break;
1979         }
1980
1981         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
1982 }
1983
1984 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
1985                 struct device_attribute *attr, char *buffer)
1986 {
1987         ssize_t count = 0;
1988         unsigned int health;
1989
1990         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
1991                 return -EIO;
1992
1993         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
1994
1995         return count;
1996 }
1997
1998 static int sony_nc_battery_care_setup(struct platform_device *pd,
1999                 unsigned int handle)
2000 {
2001         int ret = 0;
2002
2003         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2004         if (!bcare_ctl)
2005                 return -ENOMEM;
2006
2007         bcare_ctl->handle = handle;
2008
2009         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2010         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2011         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2012         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2013         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2014
2015         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2016         if (ret)
2017                 goto outkzalloc;
2018
2019         /* 0x0115 is for models with no health reporting capability */
2020         if (handle == 0x0115)
2021                 return 0;
2022
2023         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2024         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2025         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2026         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2027
2028         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2029         if (ret)
2030                 goto outlimiter;
2031
2032         return 0;
2033
2034 outlimiter:
2035         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2036
2037 outkzalloc:
2038         kfree(bcare_ctl);
2039         bcare_ctl = NULL;
2040
2041         return ret;
2042 }
2043
2044 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2045 {
2046         if (bcare_ctl) {
2047                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2048                 if (bcare_ctl->handle != 0x0115)
2049                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2050
2051                 kfree(bcare_ctl);
2052                 bcare_ctl = NULL;
2053         }
2054 }
2055
2056 struct snc_thermal_ctrl {
2057         unsigned int mode;
2058         unsigned int profiles;
2059         struct device_attribute mode_attr;
2060         struct device_attribute profiles_attr;
2061 };
2062 static struct snc_thermal_ctrl *th_handle;
2063
2064 #define THM_PROFILE_MAX 3
2065 static const char * const snc_thermal_profiles[] = {
2066         "balanced",
2067         "silent",
2068         "performance"
2069 };
2070
2071 static int sony_nc_thermal_mode_set(unsigned short mode)
2072 {
2073         unsigned int result;
2074
2075         /* the thermal profile seems to be a two bit bitmask:
2076          * lsb -> silent
2077          * msb -> performance
2078          * no bit set is the normal operation and is always valid
2079          * Some vaio models only have "balanced" and "performance"
2080          */
2081         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2082                 return -EINVAL;
2083
2084         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2085                 return -EIO;
2086
2087         th_handle->mode = mode;
2088
2089         return 0;
2090 }
2091
2092 static int sony_nc_thermal_mode_get(void)
2093 {
2094         unsigned int result;
2095
2096         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2097                 return -EIO;
2098
2099         return result & 0xff;
2100 }
2101
2102 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2103                 struct device_attribute *attr, char *buffer)
2104 {
2105         short cnt;
2106         size_t idx = 0;
2107
2108         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2109                 if (!cnt || (th_handle->profiles & cnt))
2110                         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2111                                         snc_thermal_profiles[cnt]);
2112         }
2113         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2114
2115         return idx;
2116 }
2117
2118 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2119                 struct device_attribute *attr,
2120                 const char *buffer, size_t count)
2121 {
2122         unsigned short cmd;
2123         size_t len = count;
2124
2125         if (count == 0)
2126                 return -EINVAL;
2127
2128         /* skip the newline if present */
2129         if (buffer[len - 1] == '\n')
2130                 len--;
2131
2132         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2133                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2134                         break;
2135
2136         if (sony_nc_thermal_mode_set(cmd))
2137                 return -EIO;
2138
2139         return count;
2140 }
2141
2142 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2143                 struct device_attribute *attr, char *buffer)
2144 {
2145         ssize_t count = 0;
2146         int mode = sony_nc_thermal_mode_get();
2147
2148         if (mode < 0)
2149                 return mode;
2150
2151         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2152
2153         return count;
2154 }
2155
2156 static int sony_nc_thermal_setup(struct platform_device *pd)
2157 {
2158         int ret = 0;
2159         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2160         if (!th_handle)
2161                 return -ENOMEM;
2162
2163         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2164         if (ret) {
2165                 pr_warn("couldn't to read the thermal profiles\n");
2166                 goto outkzalloc;
2167         }
2168
2169         ret = sony_nc_thermal_mode_get();
2170         if (ret < 0) {
2171                 pr_warn("couldn't to read the current thermal profile");
2172                 goto outkzalloc;
2173         }
2174         th_handle->mode = ret;
2175
2176         sysfs_attr_init(&th_handle->profiles_attr.attr);
2177         th_handle->profiles_attr.attr.name = "thermal_profiles";
2178         th_handle->profiles_attr.attr.mode = S_IRUGO;
2179         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2180
2181         sysfs_attr_init(&th_handle->mode_attr.attr);
2182         th_handle->mode_attr.attr.name = "thermal_control";
2183         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2184         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2185         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2186
2187         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2188         if (ret)
2189                 goto outkzalloc;
2190
2191         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2192         if (ret)
2193                 goto outprofiles;
2194
2195         return 0;
2196
2197 outprofiles:
2198         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2199 outkzalloc:
2200         kfree(th_handle);
2201         th_handle = NULL;
2202         return ret;
2203 }
2204
2205 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2206 {
2207         if (th_handle) {
2208                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2209                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2210                 kfree(th_handle);
2211                 th_handle = NULL;
2212         }
2213 }
2214
2215 #ifdef CONFIG_PM_SLEEP
2216 static void sony_nc_thermal_resume(void)
2217 {
2218         unsigned int status = sony_nc_thermal_mode_get();
2219
2220         if (status != th_handle->mode)
2221                 sony_nc_thermal_mode_set(th_handle->mode);
2222 }
2223 #endif
2224
2225 /* resume on LID open */
2226 struct snc_lid_resume_control {
2227         struct device_attribute attrs[3];
2228         unsigned int status;
2229 };
2230 static struct snc_lid_resume_control *lid_ctl;
2231
2232 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2233                                         struct device_attribute *attr,
2234                                         const char *buffer, size_t count)
2235 {
2236         unsigned int result, pos;
2237         unsigned long value;
2238         if (count > 31)
2239                 return -EINVAL;
2240
2241         if (kstrtoul(buffer, 10, &value) || value > 1)
2242                 return -EINVAL;
2243
2244         /* the value we have to write to SNC is a bitmask:
2245          * +--------------+
2246          * | S3 | S4 | S5 |
2247          * +--------------+
2248          *   2    1    0
2249          */
2250         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2251                 pos = 2;
2252         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2253                 pos = 1;
2254         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2255                 pos = 0;
2256         else
2257                return -EINVAL;
2258
2259         if (value)
2260                 value = lid_ctl->status | (1 << pos);
2261         else
2262                 value = lid_ctl->status & ~(1 << pos);
2263
2264         if (sony_call_snc_handle(0x0119, value << 0x10 | 0x0100, &result))
2265                 return -EIO;
2266
2267         lid_ctl->status = value;
2268
2269         return count;
2270 }
2271
2272 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2273                                        struct device_attribute *attr, char *buffer)
2274 {
2275         unsigned int pos;
2276
2277         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2278                 pos = 2;
2279         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2280                 pos = 1;
2281         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2282                 pos = 0;
2283         else
2284                 return -EINVAL;
2285
2286         return snprintf(buffer, PAGE_SIZE, "%d\n",
2287                         (lid_ctl->status >> pos) & 0x01);
2288 }
2289
2290 static int sony_nc_lid_resume_setup(struct platform_device *pd)
2291 {
2292         unsigned int result;
2293         int i;
2294
2295         if (sony_call_snc_handle(0x0119, 0x0000, &result))
2296                 return -EIO;
2297
2298         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2299         if (!lid_ctl)
2300                 return -ENOMEM;
2301
2302         lid_ctl->status = result & 0x7;
2303
2304         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2305         lid_ctl->attrs[0].attr.name = "lid_resume_S3";
2306         lid_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2307         lid_ctl->attrs[0].show = sony_nc_lid_resume_show;
2308         lid_ctl->attrs[0].store = sony_nc_lid_resume_store;
2309
2310         sysfs_attr_init(&lid_ctl->attrs[1].attr);
2311         lid_ctl->attrs[1].attr.name = "lid_resume_S4";
2312         lid_ctl->attrs[1].attr.mode = S_IRUGO | S_IWUSR;
2313         lid_ctl->attrs[1].show = sony_nc_lid_resume_show;
2314         lid_ctl->attrs[1].store = sony_nc_lid_resume_store;
2315
2316         sysfs_attr_init(&lid_ctl->attrs[2].attr);
2317         lid_ctl->attrs[2].attr.name = "lid_resume_S5";
2318         lid_ctl->attrs[2].attr.mode = S_IRUGO | S_IWUSR;
2319         lid_ctl->attrs[2].show = sony_nc_lid_resume_show;
2320         lid_ctl->attrs[2].store = sony_nc_lid_resume_store;
2321
2322         for (i = 0; i < 3; i++) {
2323                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2324                 if (result)
2325                         goto liderror;
2326         }
2327
2328         return 0;
2329
2330 liderror:
2331         for (i--; i >= 0; i--)
2332                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2333
2334         kfree(lid_ctl);
2335         lid_ctl = NULL;
2336
2337         return result;
2338 }
2339
2340 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2341 {
2342         int i;
2343
2344         if (lid_ctl) {
2345                 for (i = 0; i < 3; i++)
2346                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2347
2348                 kfree(lid_ctl);
2349                 lid_ctl = NULL;
2350         }
2351 }
2352
2353 /* GFX Switch position */
2354 enum gfx_switch {
2355         SPEED,
2356         STAMINA,
2357         AUTO
2358 };
2359 struct snc_gfx_switch_control {
2360         struct device_attribute attr;
2361         unsigned int handle;
2362 };
2363 static struct snc_gfx_switch_control *gfxs_ctl;
2364
2365 /* returns 0 for speed, 1 for stamina */
2366 static int __sony_nc_gfx_switch_status_get(void)
2367 {
2368         unsigned int result;
2369
2370         if (sony_call_snc_handle(gfxs_ctl->handle,
2371                                 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2372                                 &result))
2373                 return -EIO;
2374
2375         switch (gfxs_ctl->handle) {
2376         case 0x0146:
2377                 /* 1: discrete GFX (speed)
2378                  * 0: integrated GFX (stamina)
2379                  */
2380                 return result & 0x1 ? SPEED : STAMINA;
2381                 break;
2382         case 0x015B:
2383                 /* 0: discrete GFX (speed)
2384                  * 1: integrated GFX (stamina)
2385                  */
2386                 return result & 0x1 ? STAMINA : SPEED;
2387                 break;
2388         case 0x0128:
2389                 /* it's a more elaborated bitmask, for now:
2390                  * 2: integrated GFX (stamina)
2391                  * 0: discrete GFX (speed)
2392                  */
2393                 dprintk("GFX Status: 0x%x\n", result);
2394                 return result & 0x80 ? AUTO :
2395                         result & 0x02 ? STAMINA : SPEED;
2396                 break;
2397         }
2398         return -EINVAL;
2399 }
2400
2401 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2402                                        struct device_attribute *attr,
2403                                        char *buffer)
2404 {
2405         int pos = __sony_nc_gfx_switch_status_get();
2406
2407         if (pos < 0)
2408                 return pos;
2409
2410         return snprintf(buffer, PAGE_SIZE, "%s\n",
2411                                         pos == SPEED ? "speed" :
2412                                         pos == STAMINA ? "stamina" :
2413                                         pos == AUTO ? "auto" : "unknown");
2414 }
2415
2416 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2417                 unsigned int handle)
2418 {
2419         unsigned int result;
2420
2421         gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2422         if (!gfxs_ctl)
2423                 return -ENOMEM;
2424
2425         gfxs_ctl->handle = handle;
2426
2427         sysfs_attr_init(&gfxs_ctl->attr.attr);
2428         gfxs_ctl->attr.attr.name = "gfx_switch_status";
2429         gfxs_ctl->attr.attr.mode = S_IRUGO;
2430         gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2431
2432         result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2433         if (result)
2434                 goto gfxerror;
2435
2436         return 0;
2437
2438 gfxerror:
2439         kfree(gfxs_ctl);
2440         gfxs_ctl = NULL;
2441
2442         return result;
2443 }
2444
2445 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2446 {
2447         if (gfxs_ctl) {
2448                 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2449
2450                 kfree(gfxs_ctl);
2451                 gfxs_ctl = NULL;
2452         }
2453 }
2454
2455 /* High speed charging function */
2456 static struct device_attribute *hsc_handle;
2457
2458 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2459                 struct device_attribute *attr,
2460                 const char *buffer, size_t count)
2461 {
2462         unsigned int result;
2463         unsigned long value;
2464
2465         if (count > 31)
2466                 return -EINVAL;
2467
2468         if (kstrtoul(buffer, 10, &value) || value > 1)
2469                 return -EINVAL;
2470
2471         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2472                 return -EIO;
2473
2474         return count;
2475 }
2476
2477 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2478                 struct device_attribute *attr, char *buffer)
2479 {
2480         unsigned int result;
2481
2482         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2483                 return -EIO;
2484
2485         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2486 }
2487
2488 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2489 {
2490         unsigned int result;
2491
2492         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2493                 /* some models advertise the handle but have no implementation
2494                  * for it
2495                  */
2496                 pr_info("No High Speed Charging capability found\n");
2497                 return 0;
2498         }
2499
2500         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2501         if (!hsc_handle)
2502                 return -ENOMEM;
2503
2504         sysfs_attr_init(&hsc_handle->attr);
2505         hsc_handle->attr.name = "battery_highspeed_charging";
2506         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2507         hsc_handle->show = sony_nc_highspeed_charging_show;
2508         hsc_handle->store = sony_nc_highspeed_charging_store;
2509
2510         result = device_create_file(&pd->dev, hsc_handle);
2511         if (result) {
2512                 kfree(hsc_handle);
2513                 hsc_handle = NULL;
2514                 return result;
2515         }
2516
2517         return 0;
2518 }
2519
2520 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2521 {
2522         if (hsc_handle) {
2523                 device_remove_file(&pd->dev, hsc_handle);
2524                 kfree(hsc_handle);
2525                 hsc_handle = NULL;
2526         }
2527 }
2528
2529 /* Touchpad enable/disable */
2530 struct touchpad_control {
2531         struct device_attribute attr;
2532         int handle;
2533 };
2534 static struct touchpad_control *tp_ctl;
2535
2536 static ssize_t sony_nc_touchpad_store(struct device *dev,
2537                 struct device_attribute *attr, const char *buffer, size_t count)
2538 {
2539         unsigned int result;
2540         unsigned long value;
2541
2542         if (count > 31)
2543                 return -EINVAL;
2544
2545         if (kstrtoul(buffer, 10, &value) || value > 1)
2546                 return -EINVAL;
2547
2548         /* sysfs: 0 disabled, 1 enabled
2549          * EC: 0 enabled, 1 disabled
2550          */
2551         if (sony_call_snc_handle(tp_ctl->handle,
2552                                 (!value << 0x10) | 0x100, &result))
2553                 return -EIO;
2554
2555         return count;
2556 }
2557
2558 static ssize_t sony_nc_touchpad_show(struct device *dev,
2559                 struct device_attribute *attr, char *buffer)
2560 {
2561         unsigned int result;
2562
2563         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
2564                 return -EINVAL;
2565
2566         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
2567 }
2568
2569 static int sony_nc_touchpad_setup(struct platform_device *pd,
2570                 unsigned int handle)
2571 {
2572         int ret = 0;
2573
2574         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
2575         if (!tp_ctl)
2576                 return -ENOMEM;
2577
2578         tp_ctl->handle = handle;
2579
2580         sysfs_attr_init(&tp_ctl->attr.attr);
2581         tp_ctl->attr.attr.name = "touchpad";
2582         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
2583         tp_ctl->attr.show = sony_nc_touchpad_show;
2584         tp_ctl->attr.store = sony_nc_touchpad_store;
2585
2586         ret = device_create_file(&pd->dev, &tp_ctl->attr);
2587         if (ret) {
2588                 kfree(tp_ctl);
2589                 tp_ctl = NULL;
2590         }
2591
2592         return ret;
2593 }
2594
2595 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
2596 {
2597         if (tp_ctl) {
2598                 device_remove_file(&pd->dev, &tp_ctl->attr);
2599                 kfree(tp_ctl);
2600                 tp_ctl = NULL;
2601         }
2602 }
2603
2604 static void sony_nc_backlight_ng_read_limits(int handle,
2605                 struct sony_backlight_props *props)
2606 {
2607         u64 offset;
2608         int i;
2609         int lvl_table_len = 0;
2610         u8 min = 0xff, max = 0x00;
2611         unsigned char buffer[32] = { 0 };
2612
2613         props->handle = handle;
2614         props->offset = 0;
2615         props->maxlvl = 0xff;
2616
2617         offset = sony_find_snc_handle(handle);
2618
2619         /* try to read the boundaries from ACPI tables, if we fail the above
2620          * defaults should be reasonable
2621          */
2622         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
2623                         32);
2624         if (i < 0)
2625                 return;
2626
2627         switch (handle) {
2628         case 0x012f:
2629         case 0x0137:
2630                 lvl_table_len = 9;
2631                 break;
2632         case 0x143:
2633         case 0x14b:
2634         case 0x14c:
2635                 lvl_table_len = 16;
2636                 break;
2637         }
2638
2639         /* the buffer lists brightness levels available, brightness levels are
2640          * from position 0 to 8 in the array, other values are used by ALS
2641          * control.
2642          */
2643         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
2644
2645                 dprintk("Brightness level: %d\n", buffer[i]);
2646
2647                 if (!buffer[i])
2648                         break;
2649
2650                 if (buffer[i] > max)
2651                         max = buffer[i];
2652                 if (buffer[i] < min)
2653                         min = buffer[i];
2654         }
2655         props->offset = min;
2656         props->maxlvl = max;
2657         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
2658                         props->maxlvl);
2659 }
2660
2661 static void sony_nc_backlight_setup(void)
2662 {
2663         int max_brightness = 0;
2664         const struct backlight_ops *ops = NULL;
2665         struct backlight_properties props;
2666
2667         if (sony_find_snc_handle(0x12f) >= 0) {
2668                 ops = &sony_backlight_ng_ops;
2669                 sony_bl_props.cmd_base = 0x0100;
2670                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
2671                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2672
2673         } else if (sony_find_snc_handle(0x137) >= 0) {
2674                 ops = &sony_backlight_ng_ops;
2675                 sony_bl_props.cmd_base = 0x0100;
2676                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
2677                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2678
2679         } else if (sony_find_snc_handle(0x143) >= 0) {
2680                 ops = &sony_backlight_ng_ops;
2681                 sony_bl_props.cmd_base = 0x3000;
2682                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
2683                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2684
2685         } else if (sony_find_snc_handle(0x14b) >= 0) {
2686                 ops = &sony_backlight_ng_ops;
2687                 sony_bl_props.cmd_base = 0x3000;
2688                 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
2689                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2690
2691         } else if (sony_find_snc_handle(0x14c) >= 0) {
2692                 ops = &sony_backlight_ng_ops;
2693                 sony_bl_props.cmd_base = 0x3000;
2694                 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
2695                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2696
2697         } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
2698                 ops = &sony_backlight_ops;
2699                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
2700
2701         } else
2702                 return;
2703
2704         memset(&props, 0, sizeof(struct backlight_properties));
2705         props.type = BACKLIGHT_PLATFORM;
2706         props.max_brightness = max_brightness;
2707         sony_bl_props.dev = backlight_device_register("sony", NULL,
2708                                                       &sony_bl_props,
2709                                                       ops, &props);
2710
2711         if (IS_ERR(sony_bl_props.dev)) {
2712                 pr_warn("unable to register backlight device\n");
2713                 sony_bl_props.dev = NULL;
2714         } else
2715                 sony_bl_props.dev->props.brightness =
2716                         ops->get_brightness(sony_bl_props.dev);
2717 }
2718
2719 static void sony_nc_backlight_cleanup(void)
2720 {
2721         if (sony_bl_props.dev)
2722                 backlight_device_unregister(sony_bl_props.dev);
2723 }
2724
2725 static int sony_nc_add(struct acpi_device *device)
2726 {
2727         acpi_status status;
2728         int result = 0;
2729         struct sony_nc_value *item;
2730
2731         pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2732
2733         sony_nc_acpi_device = device;
2734         strcpy(acpi_device_class(device), "sony/hotkey");
2735
2736         sony_nc_acpi_handle = device->handle;
2737
2738         /* read device status */
2739         result = acpi_bus_get_status(device);
2740         /* bail IFF the above call was successful and the device is not present */
2741         if (!result && !device->status.present) {
2742                 dprintk("Device not present\n");
2743                 result = -ENODEV;
2744                 goto outwalk;
2745         }
2746
2747         result = sony_pf_add();
2748         if (result)
2749                 goto outpresent;
2750
2751         if (debug) {
2752                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
2753                                 sony_nc_acpi_handle, 1, sony_walk_callback,
2754                                 NULL, NULL, NULL);
2755                 if (ACPI_FAILURE(status)) {
2756                         pr_warn("unable to walk acpi resources\n");
2757                         result = -ENODEV;
2758                         goto outpresent;
2759                 }
2760         }
2761
2762         result = sony_laptop_setup_input(device);
2763         if (result) {
2764                 pr_err("Unable to create input devices\n");
2765                 goto outplatform;
2766         }
2767
2768         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
2769                 int arg = 1;
2770                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
2771                         dprintk("ECON Method failed\n");
2772         }
2773
2774         if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
2775                 dprintk("Doing SNC setup\n");
2776                 /* retrieve the available handles */
2777                 result = sony_nc_handles_setup(sony_pf_device);
2778                 if (!result)
2779                         sony_nc_function_setup(device, sony_pf_device);
2780         }
2781
2782         /* setup input devices and helper fifo */
2783         if (acpi_video_backlight_support()) {
2784                 pr_info("brightness ignored, must be controlled by ACPI video driver\n");
2785         } else {
2786                 sony_nc_backlight_setup();
2787         }
2788
2789         /* create sony_pf sysfs attributes related to the SNC device */
2790         for (item = sony_nc_values; item->name; ++item) {
2791
2792                 if (!debug && item->debug)
2793                         continue;
2794
2795                 /* find the available acpiget as described in the DSDT */
2796                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
2797                         if (acpi_has_method(sony_nc_acpi_handle,
2798                                                         *item->acpiget)) {
2799                                 dprintk("Found %s getter: %s\n",
2800                                                 item->name, *item->acpiget);
2801                                 item->devattr.attr.mode |= S_IRUGO;
2802                                 break;
2803                         }
2804                 }
2805
2806                 /* find the available acpiset as described in the DSDT */
2807                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
2808                         if (acpi_has_method(sony_nc_acpi_handle,
2809                                                         *item->acpiset)) {
2810                                 dprintk("Found %s setter: %s\n",
2811                                                 item->name, *item->acpiset);
2812                                 item->devattr.attr.mode |= S_IWUSR;
2813                                 break;
2814                         }
2815                 }
2816
2817                 if (item->devattr.attr.mode != 0) {
2818                         result =
2819                             device_create_file(&sony_pf_device->dev,
2820                                                &item->devattr);
2821                         if (result)
2822                                 goto out_sysfs;
2823                 }
2824         }
2825
2826         return 0;
2827
2828 out_sysfs:
2829         for (item = sony_nc_values; item->name; ++item) {
2830                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2831         }
2832         sony_nc_backlight_cleanup();
2833         sony_nc_function_cleanup(sony_pf_device);
2834         sony_nc_handles_cleanup(sony_pf_device);
2835
2836 outplatform:
2837         sony_laptop_remove_input();
2838
2839 outpresent:
2840         sony_pf_remove();
2841
2842 outwalk:
2843         sony_nc_rfkill_cleanup();
2844         return result;
2845 }
2846
2847 static int sony_nc_remove(struct acpi_device *device)
2848 {
2849         struct sony_nc_value *item;
2850
2851         sony_nc_backlight_cleanup();
2852
2853         sony_nc_acpi_device = NULL;
2854
2855         for (item = sony_nc_values; item->name; ++item) {
2856                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2857         }
2858
2859         sony_nc_function_cleanup(sony_pf_device);
2860         sony_nc_handles_cleanup(sony_pf_device);
2861         sony_pf_remove();
2862         sony_laptop_remove_input();
2863         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
2864
2865         return 0;
2866 }
2867
2868 static const struct acpi_device_id sony_device_ids[] = {
2869         {SONY_NC_HID, 0},
2870         {SONY_PIC_HID, 0},
2871         {"", 0},
2872 };
2873 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
2874
2875 static const struct acpi_device_id sony_nc_device_ids[] = {
2876         {SONY_NC_HID, 0},
2877         {"", 0},
2878 };
2879
2880 static struct acpi_driver sony_nc_driver = {
2881         .name = SONY_NC_DRIVER_NAME,
2882         .class = SONY_NC_CLASS,
2883         .ids = sony_nc_device_ids,
2884         .owner = THIS_MODULE,
2885         .ops = {
2886                 .add = sony_nc_add,
2887                 .remove = sony_nc_remove,
2888                 .notify = sony_nc_notify,
2889                 },
2890         .drv.pm = &sony_nc_pm,
2891 };
2892
2893 /*********** SPIC (SNY6001) Device ***********/
2894
2895 #define SONYPI_DEVICE_TYPE1     0x00000001
2896 #define SONYPI_DEVICE_TYPE2     0x00000002
2897 #define SONYPI_DEVICE_TYPE3     0x00000004
2898
2899 #define SONYPI_TYPE1_OFFSET     0x04
2900 #define SONYPI_TYPE2_OFFSET     0x12
2901 #define SONYPI_TYPE3_OFFSET     0x12
2902
2903 struct sony_pic_ioport {
2904         struct acpi_resource_io io1;
2905         struct acpi_resource_io io2;
2906         struct list_head        list;
2907 };
2908
2909 struct sony_pic_irq {
2910         struct acpi_resource_irq        irq;
2911         struct list_head                list;
2912 };
2913
2914 struct sonypi_eventtypes {
2915         u8                      data;
2916         unsigned long           mask;
2917         struct sonypi_event     *events;
2918 };
2919
2920 struct sony_pic_dev {
2921         struct acpi_device              *acpi_dev;
2922         struct sony_pic_irq             *cur_irq;
2923         struct sony_pic_ioport          *cur_ioport;
2924         struct list_head                interrupts;
2925         struct list_head                ioports;
2926         struct mutex                    lock;
2927         struct sonypi_eventtypes        *event_types;
2928         int                             (*handle_irq)(const u8, const u8);
2929         int                             model;
2930         u16                             evport_offset;
2931         u8                              camera_power;
2932         u8                              bluetooth_power;
2933         u8                              wwan_power;
2934 };
2935
2936 static struct sony_pic_dev spic_dev = {
2937         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
2938         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
2939 };
2940
2941 static int spic_drv_registered;
2942
2943 /* Event masks */
2944 #define SONYPI_JOGGER_MASK                      0x00000001
2945 #define SONYPI_CAPTURE_MASK                     0x00000002
2946 #define SONYPI_FNKEY_MASK                       0x00000004
2947 #define SONYPI_BLUETOOTH_MASK                   0x00000008
2948 #define SONYPI_PKEY_MASK                        0x00000010
2949 #define SONYPI_BACK_MASK                        0x00000020
2950 #define SONYPI_HELP_MASK                        0x00000040
2951 #define SONYPI_LID_MASK                         0x00000080
2952 #define SONYPI_ZOOM_MASK                        0x00000100
2953 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
2954 #define SONYPI_MEYE_MASK                        0x00000400
2955 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
2956 #define SONYPI_BATTERY_MASK                     0x00001000
2957 #define SONYPI_WIRELESS_MASK                    0x00002000
2958
2959 struct sonypi_event {
2960         u8      data;
2961         u8      event;
2962 };
2963
2964 /* The set of possible button release events */
2965 static struct sonypi_event sonypi_releaseev[] = {
2966         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
2967         { 0, 0 }
2968 };
2969
2970 /* The set of possible jogger events  */
2971 static struct sonypi_event sonypi_joggerev[] = {
2972         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
2973         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
2974         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
2975         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
2976         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
2977         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
2978         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
2979         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
2980         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
2981         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
2982         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
2983         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
2984         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
2985         { 0, 0 }
2986 };
2987
2988 /* The set of possible capture button events */
2989 static struct sonypi_event sonypi_captureev[] = {
2990         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
2991         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
2992         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
2993         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
2994         { 0, 0 }
2995 };
2996
2997 /* The set of possible fnkeys events */
2998 static struct sonypi_event sonypi_fnkeyev[] = {
2999         { 0x10, SONYPI_EVENT_FNKEY_ESC },
3000         { 0x11, SONYPI_EVENT_FNKEY_F1 },
3001         { 0x12, SONYPI_EVENT_FNKEY_F2 },
3002         { 0x13, SONYPI_EVENT_FNKEY_F3 },
3003         { 0x14, SONYPI_EVENT_FNKEY_F4 },
3004         { 0x15, SONYPI_EVENT_FNKEY_F5 },
3005         { 0x16, SONYPI_EVENT_FNKEY_F6 },
3006         { 0x17, SONYPI_EVENT_FNKEY_F7 },
3007         { 0x18, SONYPI_EVENT_FNKEY_F8 },
3008         { 0x19, SONYPI_EVENT_FNKEY_F9 },
3009         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3010         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3011         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3012         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3013         { 0x21, SONYPI_EVENT_FNKEY_1 },
3014         { 0x22, SONYPI_EVENT_FNKEY_2 },
3015         { 0x31, SONYPI_EVENT_FNKEY_D },
3016         { 0x32, SONYPI_EVENT_FNKEY_E },
3017         { 0x33, SONYPI_EVENT_FNKEY_F },
3018         { 0x34, SONYPI_EVENT_FNKEY_S },
3019         { 0x35, SONYPI_EVENT_FNKEY_B },
3020         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3021         { 0, 0 }
3022 };
3023
3024 /* The set of possible program key events */
3025 static struct sonypi_event sonypi_pkeyev[] = {
3026         { 0x01, SONYPI_EVENT_PKEY_P1 },
3027         { 0x02, SONYPI_EVENT_PKEY_P2 },
3028         { 0x04, SONYPI_EVENT_PKEY_P3 },
3029         { 0x20, SONYPI_EVENT_PKEY_P1 },
3030         { 0, 0 }
3031 };
3032
3033 /* The set of possible bluetooth events */
3034 static struct sonypi_event sonypi_blueev[] = {
3035         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3036         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3037         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3038         { 0, 0 }
3039 };
3040
3041 /* The set of possible wireless events */
3042 static struct sonypi_event sonypi_wlessev[] = {
3043         { 0x59, SONYPI_EVENT_IGNORE },
3044         { 0x5a, SONYPI_EVENT_IGNORE },
3045         { 0, 0 }
3046 };
3047
3048 /* The set of possible back button events */
3049 static struct sonypi_event sonypi_backev[] = {
3050         { 0x20, SONYPI_EVENT_BACK_PRESSED },
3051         { 0, 0 }
3052 };
3053
3054 /* The set of possible help button events */
3055 static struct sonypi_event sonypi_helpev[] = {
3056         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3057         { 0, 0 }
3058 };
3059
3060
3061 /* The set of possible lid events */
3062 static struct sonypi_event sonypi_lidev[] = {
3063         { 0x51, SONYPI_EVENT_LID_CLOSED },
3064         { 0x50, SONYPI_EVENT_LID_OPENED },
3065         { 0, 0 }
3066 };
3067
3068 /* The set of possible zoom events */
3069 static struct sonypi_event sonypi_zoomev[] = {
3070         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3071         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3072         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3073         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3074         { 0, 0 }
3075 };
3076
3077 /* The set of possible thumbphrase events */
3078 static struct sonypi_event sonypi_thumbphraseev[] = {
3079         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3080         { 0, 0 }
3081 };
3082
3083 /* The set of possible motioneye camera events */
3084 static struct sonypi_event sonypi_meyeev[] = {
3085         { 0x00, SONYPI_EVENT_MEYE_FACE },
3086         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3087         { 0, 0 }
3088 };
3089
3090 /* The set of possible memorystick events */
3091 static struct sonypi_event sonypi_memorystickev[] = {
3092         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3093         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3094         { 0, 0 }
3095 };
3096
3097 /* The set of possible battery events */
3098 static struct sonypi_event sonypi_batteryev[] = {
3099         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3100         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3101         { 0, 0 }
3102 };
3103
3104 /* The set of possible volume events */
3105 static struct sonypi_event sonypi_volumeev[] = {
3106         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3107         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3108         { 0, 0 }
3109 };
3110
3111 /* The set of possible brightness events */
3112 static struct sonypi_event sonypi_brightnessev[] = {
3113         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3114         { 0, 0 }
3115 };
3116
3117 static struct sonypi_eventtypes type1_events[] = {
3118         { 0, 0xffffffff, sonypi_releaseev },
3119         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3120         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3121         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3122         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3123         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3124         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3125         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3126         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3127         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3128         { 0 },
3129 };
3130 static struct sonypi_eventtypes type2_events[] = {
3131         { 0, 0xffffffff, sonypi_releaseev },
3132         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3133         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3134         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3135         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3136         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3137         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3138         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3139         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3140         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3141         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3142         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3143         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3144         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3145         { 0 },
3146 };
3147 static struct sonypi_eventtypes type3_events[] = {
3148         { 0, 0xffffffff, sonypi_releaseev },
3149         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3150         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3151         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3152         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3153         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3154         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3155         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3156         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3157         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3158         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3159         { 0 },
3160 };
3161
3162 /* low level spic calls */
3163 #define ITERATIONS_LONG         10000
3164 #define ITERATIONS_SHORT        10
3165 #define wait_on_command(command, iterations) {                          \
3166         unsigned int n = iterations;                                    \
3167         while (--n && (command))                                        \
3168                 udelay(1);                                              \
3169         if (!n)                                                         \
3170                 dprintk("command failed at %s : %s (line %d)\n",        \
3171                                 __FILE__, __func__, __LINE__);  \
3172 }
3173
3174 static u8 sony_pic_call1(u8 dev)
3175 {
3176         u8 v1, v2;
3177
3178         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3179                         ITERATIONS_LONG);
3180         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3181         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3182         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3183         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3184         return v2;
3185 }
3186
3187 static u8 sony_pic_call2(u8 dev, u8 fn)
3188 {
3189         u8 v1;
3190
3191         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3192                         ITERATIONS_LONG);
3193         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3194         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3195                         ITERATIONS_LONG);
3196         outb(fn, spic_dev.cur_ioport->io1.minimum);
3197         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3198         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3199         return v1;
3200 }
3201
3202 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3203 {
3204         u8 v1;
3205
3206         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3207         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3208         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3209         outb(fn, spic_dev.cur_ioport->io1.minimum);
3210         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3211         outb(v, spic_dev.cur_ioport->io1.minimum);
3212         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3213         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3214                         dev, fn, v, v1);
3215         return v1;
3216 }
3217
3218 /*
3219  * minidrivers for SPIC models
3220  */
3221 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3222 {
3223         /*
3224          * 0x31 could mean we have to take some extra action and wait for
3225          * the next irq for some Type3 models, it will generate a new
3226          * irq and we can read new data from the device:
3227          *  - 0x5c and 0x5f requires 0xA0
3228          *  - 0x61 requires 0xB3
3229          */
3230         if (data_mask == 0x31) {
3231                 if (ev == 0x5c || ev == 0x5f)
3232                         sony_pic_call1(0xA0);
3233                 else if (ev == 0x61)
3234                         sony_pic_call1(0xB3);
3235                 return 0;
3236         }
3237         return 1;
3238 }
3239
3240 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3241 {
3242         struct pci_dev *pcidev;
3243
3244         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3245                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3246         if (pcidev) {
3247                 dev->model = SONYPI_DEVICE_TYPE1;
3248                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3249                 dev->event_types = type1_events;
3250                 goto out;
3251         }
3252
3253         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3254                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3255         if (pcidev) {
3256                 dev->model = SONYPI_DEVICE_TYPE2;
3257                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3258                 dev->event_types = type2_events;
3259                 goto out;
3260         }
3261
3262         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3263                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3264         if (pcidev) {
3265                 dev->model = SONYPI_DEVICE_TYPE3;
3266                 dev->handle_irq = type3_handle_irq;
3267                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3268                 dev->event_types = type3_events;
3269                 goto out;
3270         }
3271
3272         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3273                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3274         if (pcidev) {
3275                 dev->model = SONYPI_DEVICE_TYPE3;
3276                 dev->handle_irq = type3_handle_irq;
3277                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3278                 dev->event_types = type3_events;
3279                 goto out;
3280         }
3281
3282         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3283                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3284         if (pcidev) {
3285                 dev->model = SONYPI_DEVICE_TYPE3;
3286                 dev->handle_irq = type3_handle_irq;
3287                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3288                 dev->event_types = type3_events;
3289                 goto out;
3290         }
3291
3292         /* default */
3293         dev->model = SONYPI_DEVICE_TYPE2;
3294         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3295         dev->event_types = type2_events;
3296
3297 out:
3298         if (pcidev)
3299                 pci_dev_put(pcidev);
3300
3301         pr_info("detected Type%d model\n",
3302                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3303                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3304 }
3305
3306 /* camera tests and poweron/poweroff */
3307 #define SONYPI_CAMERA_PICTURE           5
3308 #define SONYPI_CAMERA_CONTROL           0x10
3309
3310 #define SONYPI_CAMERA_BRIGHTNESS                0
3311 #define SONYPI_CAMERA_CONTRAST                  1
3312 #define SONYPI_CAMERA_HUE                       2
3313 #define SONYPI_CAMERA_COLOR                     3
3314 #define SONYPI_CAMERA_SHARPNESS                 4
3315
3316 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3317 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3318 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3319 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3320
3321 /* the rest don't need a loop until not 0xff */
3322 #define SONYPI_CAMERA_AGC                       6
3323 #define SONYPI_CAMERA_AGC_MASK                  0x30
3324 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3325
3326 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3327 #define SONYPI_CAMERA_CONTROL                   0x10
3328
3329 #define SONYPI_CAMERA_STATUS                    7
3330 #define SONYPI_CAMERA_STATUS_READY              0x2
3331 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3332
3333 #define SONYPI_DIRECTION_BACKWARDS              0x4
3334
3335 #define SONYPI_CAMERA_REVISION                  8
3336 #define SONYPI_CAMERA_ROMVERSION                9
3337
3338 static int __sony_pic_camera_ready(void)
3339 {
3340         u8 v;
3341
3342         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3343         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3344 }
3345
3346 static int __sony_pic_camera_off(void)
3347 {
3348         if (!camera) {
3349                 pr_warn("camera control not enabled\n");
3350                 return -ENODEV;
3351         }
3352
3353         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3354                                 SONYPI_CAMERA_MUTE_MASK),
3355                         ITERATIONS_SHORT);
3356
3357         if (spic_dev.camera_power) {
3358                 sony_pic_call2(0x91, 0);
3359                 spic_dev.camera_power = 0;
3360         }
3361         return 0;
3362 }
3363
3364 static int __sony_pic_camera_on(void)
3365 {
3366         int i, j, x;
3367
3368         if (!camera) {
3369                 pr_warn("camera control not enabled\n");
3370                 return -ENODEV;
3371         }
3372
3373         if (spic_dev.camera_power)
3374                 return 0;
3375
3376         for (j = 5; j > 0; j--) {
3377
3378                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3379                         msleep(10);
3380                 sony_pic_call1(0x93);
3381
3382                 for (i = 400; i > 0; i--) {
3383                         if (__sony_pic_camera_ready())
3384                                 break;
3385                         msleep(10);
3386                 }
3387                 if (i)
3388                         break;
3389         }
3390
3391         if (j == 0) {
3392                 pr_warn("failed to power on camera\n");
3393                 return -ENODEV;
3394         }
3395
3396         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3397                                 0x5a),
3398                         ITERATIONS_SHORT);
3399
3400         spic_dev.camera_power = 1;
3401         return 0;
3402 }
3403
3404 /* External camera command (exported to the motion eye v4l driver) */
3405 int sony_pic_camera_command(int command, u8 value)
3406 {
3407         if (!camera)
3408                 return -EIO;
3409
3410         mutex_lock(&spic_dev.lock);
3411
3412         switch (command) {
3413         case SONY_PIC_COMMAND_SETCAMERA:
3414                 if (value)
3415                         __sony_pic_camera_on();
3416                 else
3417                         __sony_pic_camera_off();
3418                 break;
3419         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3420                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3421                                 ITERATIONS_SHORT);
3422                 break;
3423         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3424                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3425                                 ITERATIONS_SHORT);
3426                 break;
3427         case SONY_PIC_COMMAND_SETCAMERAHUE:
3428                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3429                                 ITERATIONS_SHORT);
3430                 break;
3431         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3432                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3433                                 ITERATIONS_SHORT);
3434                 break;
3435         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3436                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3437                                 ITERATIONS_SHORT);
3438                 break;
3439         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3440                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3441                                 ITERATIONS_SHORT);
3442                 break;
3443         case SONY_PIC_COMMAND_SETCAMERAAGC:
3444                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3445                                 ITERATIONS_SHORT);
3446                 break;
3447         default:
3448                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3449                 break;
3450         }
3451         mutex_unlock(&spic_dev.lock);
3452         return 0;
3453 }
3454 EXPORT_SYMBOL(sony_pic_camera_command);
3455
3456 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3457 static void __sony_pic_set_wwanpower(u8 state)
3458 {
3459         state = !!state;
3460         if (spic_dev.wwan_power == state)
3461                 return;
3462         sony_pic_call2(0xB0, state);
3463         sony_pic_call1(0x82);
3464         spic_dev.wwan_power = state;
3465 }
3466
3467 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3468                 struct device_attribute *attr,
3469                 const char *buffer, size_t count)
3470 {
3471         unsigned long value;
3472         if (count > 31)
3473                 return -EINVAL;
3474
3475         if (kstrtoul(buffer, 10, &value))
3476                 return -EINVAL;
3477
3478         mutex_lock(&spic_dev.lock);
3479         __sony_pic_set_wwanpower(value);
3480         mutex_unlock(&spic_dev.lock);
3481
3482         return count;
3483 }
3484
3485 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3486                 struct device_attribute *attr, char *buffer)
3487 {
3488         ssize_t count;
3489         mutex_lock(&spic_dev.lock);
3490         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3491         mutex_unlock(&spic_dev.lock);
3492         return count;
3493 }
3494
3495 /* bluetooth subsystem power state */
3496 static void __sony_pic_set_bluetoothpower(u8 state)
3497 {
3498         state = !!state;
3499         if (spic_dev.bluetooth_power == state)
3500                 return;
3501         sony_pic_call2(0x96, state);
3502         sony_pic_call1(0x82);
3503         spic_dev.bluetooth_power = state;
3504 }
3505
3506 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3507                 struct device_attribute *attr,
3508                 const char *buffer, size_t count)
3509 {
3510         unsigned long value;
3511         if (count > 31)
3512                 return -EINVAL;
3513
3514         if (kstrtoul(buffer, 10, &value))
3515                 return -EINVAL;
3516
3517         mutex_lock(&spic_dev.lock);
3518         __sony_pic_set_bluetoothpower(value);
3519         mutex_unlock(&spic_dev.lock);
3520
3521         return count;
3522 }
3523
3524 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3525                 struct device_attribute *attr, char *buffer)
3526 {
3527         ssize_t count = 0;
3528         mutex_lock(&spic_dev.lock);
3529         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3530         mutex_unlock(&spic_dev.lock);
3531         return count;
3532 }
3533
3534 /* fan speed */
3535 /* FAN0 information (reverse engineered from ACPI tables) */
3536 #define SONY_PIC_FAN0_STATUS    0x93
3537 static int sony_pic_set_fanspeed(unsigned long value)
3538 {
3539         return ec_write(SONY_PIC_FAN0_STATUS, value);
3540 }
3541
3542 static int sony_pic_get_fanspeed(u8 *value)
3543 {
3544         return ec_read(SONY_PIC_FAN0_STATUS, value);
3545 }
3546
3547 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3548                 struct device_attribute *attr,
3549                 const char *buffer, size_t count)
3550 {
3551         unsigned long value;
3552         if (count > 31)
3553                 return -EINVAL;
3554
3555         if (kstrtoul(buffer, 10, &value))
3556                 return -EINVAL;
3557
3558         if (sony_pic_set_fanspeed(value))
3559                 return -EIO;
3560
3561         return count;
3562 }
3563
3564 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3565                 struct device_attribute *attr, char *buffer)
3566 {
3567         u8 value = 0;
3568         if (sony_pic_get_fanspeed(&value))
3569                 return -EIO;
3570
3571         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
3572 }
3573
3574 #define SPIC_ATTR(_name, _mode)                                 \
3575 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
3576                 _mode, sony_pic_## _name ##_show,               \
3577                 sony_pic_## _name ##_store)
3578
3579 static SPIC_ATTR(bluetoothpower, 0644);
3580 static SPIC_ATTR(wwanpower, 0644);
3581 static SPIC_ATTR(fanspeed, 0644);
3582
3583 static struct attribute *spic_attributes[] = {
3584         &spic_attr_bluetoothpower.attr,
3585         &spic_attr_wwanpower.attr,
3586         &spic_attr_fanspeed.attr,
3587         NULL
3588 };
3589
3590 static struct attribute_group spic_attribute_group = {
3591         .attrs = spic_attributes
3592 };
3593
3594 /******** SONYPI compatibility **********/
3595 #ifdef CONFIG_SONYPI_COMPAT
3596
3597 /* battery / brightness / temperature  addresses */
3598 #define SONYPI_BAT_FLAGS        0x81
3599 #define SONYPI_LCD_LIGHT        0x96
3600 #define SONYPI_BAT1_PCTRM       0xa0
3601 #define SONYPI_BAT1_LEFT        0xa2
3602 #define SONYPI_BAT1_MAXRT       0xa4
3603 #define SONYPI_BAT2_PCTRM       0xa8
3604 #define SONYPI_BAT2_LEFT        0xaa
3605 #define SONYPI_BAT2_MAXRT       0xac
3606 #define SONYPI_BAT1_MAXTK       0xb0
3607 #define SONYPI_BAT1_FULL        0xb2
3608 #define SONYPI_BAT2_MAXTK       0xb8
3609 #define SONYPI_BAT2_FULL        0xba
3610 #define SONYPI_TEMP_STATUS      0xC1
3611
3612 struct sonypi_compat_s {
3613         struct fasync_struct    *fifo_async;
3614         struct kfifo            fifo;
3615         spinlock_t              fifo_lock;
3616         wait_queue_head_t       fifo_proc_list;
3617         atomic_t                open_count;
3618 };
3619 static struct sonypi_compat_s sonypi_compat = {
3620         .open_count = ATOMIC_INIT(0),
3621 };
3622
3623 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
3624 {
3625         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
3626 }
3627
3628 static int sonypi_misc_release(struct inode *inode, struct file *file)
3629 {
3630         atomic_dec(&sonypi_compat.open_count);
3631         return 0;
3632 }
3633
3634 static int sonypi_misc_open(struct inode *inode, struct file *file)
3635 {
3636         /* Flush input queue on first open */
3637         unsigned long flags;
3638
3639         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
3640
3641         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
3642                 kfifo_reset(&sonypi_compat.fifo);
3643
3644         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
3645
3646         return 0;
3647 }
3648
3649 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
3650                                 size_t count, loff_t *pos)
3651 {
3652         ssize_t ret;
3653         unsigned char c;
3654
3655         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
3656             (file->f_flags & O_NONBLOCK))
3657                 return -EAGAIN;
3658
3659         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
3660                                        kfifo_len(&sonypi_compat.fifo) != 0);
3661         if (ret)
3662                 return ret;
3663
3664         while (ret < count &&
3665                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
3666                           &sonypi_compat.fifo_lock) == sizeof(c))) {
3667                 if (put_user(c, buf++))
3668                         return -EFAULT;
3669                 ret++;
3670         }
3671
3672         if (ret > 0) {
3673                 struct inode *inode = file_inode(file);
3674                 inode->i_atime = current_fs_time(inode->i_sb);
3675         }
3676
3677         return ret;
3678 }
3679
3680 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
3681 {
3682         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
3683         if (kfifo_len(&sonypi_compat.fifo))
3684                 return POLLIN | POLLRDNORM;
3685         return 0;
3686 }
3687
3688 static int ec_read16(u8 addr, u16 *value)
3689 {
3690         u8 val_lb, val_hb;
3691         if (ec_read(addr, &val_lb))
3692                 return -1;
3693         if (ec_read(addr + 1, &val_hb))
3694                 return -1;
3695         *value = val_lb | (val_hb << 8);
3696         return 0;
3697 }
3698
3699 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
3700                                                         unsigned long arg)
3701 {
3702         int ret = 0;
3703         void __user *argp = (void __user *)arg;
3704         u8 val8;
3705         u16 val16;
3706         int value;
3707
3708         mutex_lock(&spic_dev.lock);
3709         switch (cmd) {
3710         case SONYPI_IOCGBRT:
3711                 if (sony_bl_props.dev == NULL) {
3712                         ret = -EIO;
3713                         break;
3714                 }
3715                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
3716                                         &value)) {
3717                         ret = -EIO;
3718                         break;
3719                 }
3720                 val8 = ((value & 0xff) - 1) << 5;
3721                 if (copy_to_user(argp, &val8, sizeof(val8)))
3722                                 ret = -EFAULT;
3723                 break;
3724         case SONYPI_IOCSBRT:
3725                 if (sony_bl_props.dev == NULL) {
3726                         ret = -EIO;
3727                         break;
3728                 }
3729                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3730                         ret = -EFAULT;
3731                         break;
3732                 }
3733                 value = (val8 >> 5) + 1;
3734                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
3735                                         NULL)) {
3736                         ret = -EIO;
3737                         break;
3738                 }
3739                 /* sync the backlight device status */
3740                 sony_bl_props.dev->props.brightness =
3741                     sony_backlight_get_brightness(sony_bl_props.dev);
3742                 break;
3743         case SONYPI_IOCGBAT1CAP:
3744                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
3745                         ret = -EIO;
3746                         break;
3747                 }
3748                 if (copy_to_user(argp, &val16, sizeof(val16)))
3749                         ret = -EFAULT;
3750                 break;
3751         case SONYPI_IOCGBAT1REM:
3752                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
3753                         ret = -EIO;
3754                         break;
3755                 }
3756                 if (copy_to_user(argp, &val16, sizeof(val16)))
3757                         ret = -EFAULT;
3758                 break;
3759         case SONYPI_IOCGBAT2CAP:
3760                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
3761                         ret = -EIO;
3762                         break;
3763                 }
3764                 if (copy_to_user(argp, &val16, sizeof(val16)))
3765                         ret = -EFAULT;
3766                 break;
3767         case SONYPI_IOCGBAT2REM:
3768                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
3769                         ret = -EIO;
3770                         break;
3771                 }
3772                 if (copy_to_user(argp, &val16, sizeof(val16)))
3773                         ret = -EFAULT;
3774                 break;
3775         case SONYPI_IOCGBATFLAGS:
3776                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
3777                         ret = -EIO;
3778                         break;
3779                 }
3780                 val8 &= 0x07;
3781                 if (copy_to_user(argp, &val8, sizeof(val8)))
3782                         ret = -EFAULT;
3783                 break;
3784         case SONYPI_IOCGBLUE:
3785                 val8 = spic_dev.bluetooth_power;
3786                 if (copy_to_user(argp, &val8, sizeof(val8)))
3787                         ret = -EFAULT;
3788                 break;
3789         case SONYPI_IOCSBLUE:
3790                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3791                         ret = -EFAULT;
3792                         break;
3793                 }
3794                 __sony_pic_set_bluetoothpower(val8);
3795                 break;
3796         /* FAN Controls */
3797         case SONYPI_IOCGFAN:
3798                 if (sony_pic_get_fanspeed(&val8)) {
3799                         ret = -EIO;
3800                         break;
3801                 }
3802                 if (copy_to_user(argp, &val8, sizeof(val8)))
3803                         ret = -EFAULT;
3804                 break;
3805         case SONYPI_IOCSFAN:
3806                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3807                         ret = -EFAULT;
3808                         break;
3809                 }
3810                 if (sony_pic_set_fanspeed(val8))
3811                         ret = -EIO;
3812                 break;
3813         /* GET Temperature (useful under APM) */
3814         case SONYPI_IOCGTEMP:
3815                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
3816                         ret = -EIO;
3817                         break;
3818                 }
3819                 if (copy_to_user(argp, &val8, sizeof(val8)))
3820                         ret = -EFAULT;
3821                 break;
3822         default:
3823                 ret = -EINVAL;
3824         }
3825         mutex_unlock(&spic_dev.lock);
3826         return ret;
3827 }
3828
3829 static const struct file_operations sonypi_misc_fops = {
3830         .owner          = THIS_MODULE,
3831         .read           = sonypi_misc_read,
3832         .poll           = sonypi_misc_poll,
3833         .open           = sonypi_misc_open,
3834         .release        = sonypi_misc_release,
3835         .fasync         = sonypi_misc_fasync,
3836         .unlocked_ioctl = sonypi_misc_ioctl,
3837         .llseek         = noop_llseek,
3838 };
3839
3840 static struct miscdevice sonypi_misc_device = {
3841         .minor          = MISC_DYNAMIC_MINOR,
3842         .name           = "sonypi",
3843         .fops           = &sonypi_misc_fops,
3844 };
3845
3846 static void sonypi_compat_report_event(u8 event)
3847 {
3848         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
3849                         sizeof(event), &sonypi_compat.fifo_lock);
3850         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
3851         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
3852 }
3853
3854 static int sonypi_compat_init(void)
3855 {
3856         int error;
3857
3858         spin_lock_init(&sonypi_compat.fifo_lock);
3859         error =
3860          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
3861         if (error) {
3862                 pr_err("kfifo_alloc failed\n");
3863                 return error;
3864         }
3865
3866         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
3867
3868         if (minor != -1)
3869                 sonypi_misc_device.minor = minor;
3870         error = misc_register(&sonypi_misc_device);
3871         if (error) {
3872                 pr_err("misc_register failed\n");
3873                 goto err_free_kfifo;
3874         }
3875         if (minor == -1)
3876                 pr_info("device allocated minor is %d\n",
3877                         sonypi_misc_device.minor);
3878
3879         return 0;
3880
3881 err_free_kfifo:
3882         kfifo_free(&sonypi_compat.fifo);
3883         return error;
3884 }
3885
3886 static void sonypi_compat_exit(void)
3887 {
3888         misc_deregister(&sonypi_misc_device);
3889         kfifo_free(&sonypi_compat.fifo);
3890 }
3891 #else
3892 static int sonypi_compat_init(void) { return 0; }
3893 static void sonypi_compat_exit(void) { }
3894 static void sonypi_compat_report_event(u8 event) { }
3895 #endif /* CONFIG_SONYPI_COMPAT */
3896
3897 /*
3898  * ACPI callbacks
3899  */
3900 static acpi_status
3901 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
3902 {
3903         u32 i;
3904         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
3905
3906         switch (resource->type) {
3907         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
3908                 {
3909                         /* start IO enumeration */
3910                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
3911                         if (!ioport)
3912                                 return AE_ERROR;
3913
3914                         list_add(&ioport->list, &dev->ioports);
3915                         return AE_OK;
3916                 }
3917
3918         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
3919                 /* end IO enumeration */
3920                 return AE_OK;
3921
3922         case ACPI_RESOURCE_TYPE_IRQ:
3923                 {
3924                         struct acpi_resource_irq *p = &resource->data.irq;
3925                         struct sony_pic_irq *interrupt = NULL;
3926                         if (!p || !p->interrupt_count) {
3927                                 /*
3928                                  * IRQ descriptors may have no IRQ# bits set,
3929                                  * particularly those those w/ _STA disabled
3930                                  */
3931                                 dprintk("Blank IRQ resource\n");
3932                                 return AE_OK;
3933                         }
3934                         for (i = 0; i < p->interrupt_count; i++) {
3935                                 if (!p->interrupts[i]) {
3936                                         pr_warn("Invalid IRQ %d\n",
3937                                                 p->interrupts[i]);
3938                                         continue;
3939                                 }
3940                                 interrupt = kzalloc(sizeof(*interrupt),
3941                                                 GFP_KERNEL);
3942                                 if (!interrupt)
3943                                         return AE_ERROR;
3944
3945                                 list_add(&interrupt->list, &dev->interrupts);
3946                                 interrupt->irq.triggering = p->triggering;
3947                                 interrupt->irq.polarity = p->polarity;
3948                                 interrupt->irq.sharable = p->sharable;
3949                                 interrupt->irq.interrupt_count = 1;
3950                                 interrupt->irq.interrupts[0] = p->interrupts[i];
3951                         }
3952                         return AE_OK;
3953                 }
3954         case ACPI_RESOURCE_TYPE_IO:
3955                 {
3956                         struct acpi_resource_io *io = &resource->data.io;
3957                         struct sony_pic_ioport *ioport =
3958                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
3959                         if (!io) {
3960                                 dprintk("Blank IO resource\n");
3961                                 return AE_OK;
3962                         }
3963
3964                         if (!ioport->io1.minimum) {
3965                                 memcpy(&ioport->io1, io, sizeof(*io));
3966                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
3967                                                 ioport->io1.address_length);
3968                         }
3969                         else if (!ioport->io2.minimum) {
3970                                 memcpy(&ioport->io2, io, sizeof(*io));
3971                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
3972                                                 ioport->io2.address_length);
3973                         }
3974                         else {
3975                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
3976                                 return AE_ERROR;
3977                         }
3978                         return AE_OK;
3979                 }
3980         default:
3981                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
3982                         resource->type);
3983
3984         case ACPI_RESOURCE_TYPE_END_TAG:
3985                 return AE_OK;
3986         }
3987         return AE_CTRL_TERMINATE;
3988 }
3989
3990 static int sony_pic_possible_resources(struct acpi_device *device)
3991 {
3992         int result = 0;
3993         acpi_status status = AE_OK;
3994
3995         if (!device)
3996                 return -EINVAL;
3997
3998         /* get device status */
3999         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4000         dprintk("Evaluating _STA\n");
4001         result = acpi_bus_get_status(device);
4002         if (result) {
4003                 pr_warn("Unable to read status\n");
4004                 goto end;
4005         }
4006
4007         if (!device->status.enabled)
4008                 dprintk("Device disabled\n");
4009         else
4010                 dprintk("Device enabled\n");
4011
4012         /*
4013          * Query and parse 'method'
4014          */
4015         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4016         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4017                         sony_pic_read_possible_resource, &spic_dev);
4018         if (ACPI_FAILURE(status)) {
4019                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4020                 result = -ENODEV;
4021         }
4022 end:
4023         return result;
4024 }
4025
4026 /*
4027  *  Disable the spic device by calling its _DIS method
4028  */
4029 static int sony_pic_disable(struct acpi_device *device)
4030 {
4031         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4032                                                NULL);
4033
4034         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4035                 return -ENXIO;
4036
4037         dprintk("Device disabled\n");
4038         return 0;
4039 }
4040
4041
4042 /*
4043  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4044  *
4045  *  Call _SRS to set current resources
4046  */
4047 static int sony_pic_enable(struct acpi_device *device,
4048                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4049 {
4050         acpi_status status;
4051         int result = 0;
4052         /* Type 1 resource layout is:
4053          *    IO
4054          *    IO
4055          *    IRQNoFlags
4056          *    End
4057          *
4058          * Type 2 and 3 resource layout is:
4059          *    IO
4060          *    IRQNoFlags
4061          *    End
4062          */
4063         struct {
4064                 struct acpi_resource res1;
4065                 struct acpi_resource res2;
4066                 struct acpi_resource res3;
4067                 struct acpi_resource res4;
4068         } *resource;
4069         struct acpi_buffer buffer = { 0, NULL };
4070
4071         if (!ioport || !irq)
4072                 return -EINVAL;
4073
4074         /* init acpi_buffer */
4075         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4076         if (!resource)
4077                 return -ENOMEM;
4078
4079         buffer.length = sizeof(*resource) + 1;
4080         buffer.pointer = resource;
4081
4082         /* setup Type 1 resources */
4083         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4084
4085                 /* setup io resources */
4086                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4087                 resource->res1.length = sizeof(struct acpi_resource);
4088                 memcpy(&resource->res1.data.io, &ioport->io1,
4089                                 sizeof(struct acpi_resource_io));
4090
4091                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4092                 resource->res2.length = sizeof(struct acpi_resource);
4093                 memcpy(&resource->res2.data.io, &ioport->io2,
4094                                 sizeof(struct acpi_resource_io));
4095
4096                 /* setup irq resource */
4097                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4098                 resource->res3.length = sizeof(struct acpi_resource);
4099                 memcpy(&resource->res3.data.irq, &irq->irq,
4100                                 sizeof(struct acpi_resource_irq));
4101                 /* we requested a shared irq */
4102                 resource->res3.data.irq.sharable = ACPI_SHARED;
4103
4104                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4105                 resource->res4.length = sizeof(struct acpi_resource);
4106         }
4107         /* setup Type 2/3 resources */
4108         else {
4109                 /* setup io resource */
4110                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4111                 resource->res1.length = sizeof(struct acpi_resource);
4112                 memcpy(&resource->res1.data.io, &ioport->io1,
4113                                 sizeof(struct acpi_resource_io));
4114
4115                 /* setup irq resource */
4116                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4117                 resource->res2.length = sizeof(struct acpi_resource);
4118                 memcpy(&resource->res2.data.irq, &irq->irq,
4119                                 sizeof(struct acpi_resource_irq));
4120                 /* we requested a shared irq */
4121                 resource->res2.data.irq.sharable = ACPI_SHARED;
4122
4123                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4124                 resource->res3.length = sizeof(struct acpi_resource);
4125         }
4126
4127         /* Attempt to set the resource */
4128         dprintk("Evaluating _SRS\n");
4129         status = acpi_set_current_resources(device->handle, &buffer);
4130
4131         /* check for total failure */
4132         if (ACPI_FAILURE(status)) {
4133                 pr_err("Error evaluating _SRS\n");
4134                 result = -ENODEV;
4135                 goto end;
4136         }
4137
4138         /* Necessary device initializations calls (from sonypi) */
4139         sony_pic_call1(0x82);
4140         sony_pic_call2(0x81, 0xff);
4141         sony_pic_call1(compat ? 0x92 : 0x82);
4142
4143 end:
4144         kfree(resource);
4145         return result;
4146 }
4147
4148 /*****************
4149  *
4150  * ISR: some event is available
4151  *
4152  *****************/
4153 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4154 {
4155         int i, j;
4156         u8 ev = 0;
4157         u8 data_mask = 0;
4158         u8 device_event = 0;
4159
4160         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4161
4162         ev = inb_p(dev->cur_ioport->io1.minimum);
4163         if (dev->cur_ioport->io2.minimum)
4164                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4165         else
4166                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4167                                 dev->evport_offset);
4168
4169         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4170                         ev, data_mask, dev->cur_ioport->io1.minimum,
4171                         dev->evport_offset);
4172
4173         if (ev == 0x00 || ev == 0xff)
4174                 return IRQ_HANDLED;
4175
4176         for (i = 0; dev->event_types[i].mask; i++) {
4177
4178                 if ((data_mask & dev->event_types[i].data) !=
4179                     dev->event_types[i].data)
4180                         continue;
4181
4182                 if (!(mask & dev->event_types[i].mask))
4183                         continue;
4184
4185                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4186                         if (ev == dev->event_types[i].events[j].data) {
4187                                 device_event =
4188                                         dev->event_types[i].events[j].event;
4189                                 /* some events may require ignoring */
4190                                 if (!device_event)
4191                                         return IRQ_HANDLED;
4192                                 goto found;
4193                         }
4194                 }
4195         }
4196         /* Still not able to decode the event try to pass
4197          * it over to the minidriver
4198          */
4199         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4200                 return IRQ_HANDLED;
4201
4202         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4203                         ev, data_mask, dev->cur_ioport->io1.minimum,
4204                         dev->evport_offset);
4205         return IRQ_HANDLED;
4206
4207 found:
4208         sony_laptop_report_input_event(device_event);
4209         sonypi_compat_report_event(device_event);
4210         return IRQ_HANDLED;
4211 }
4212
4213 /*****************
4214  *
4215  *  ACPI driver
4216  *
4217  *****************/
4218 static int sony_pic_remove(struct acpi_device *device)
4219 {
4220         struct sony_pic_ioport *io, *tmp_io;
4221         struct sony_pic_irq *irq, *tmp_irq;
4222
4223         if (sony_pic_disable(device)) {
4224                 pr_err("Couldn't disable device\n");
4225                 return -ENXIO;
4226         }
4227
4228         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4229         release_region(spic_dev.cur_ioport->io1.minimum,
4230                         spic_dev.cur_ioport->io1.address_length);
4231         if (spic_dev.cur_ioport->io2.minimum)
4232                 release_region(spic_dev.cur_ioport->io2.minimum,
4233                                 spic_dev.cur_ioport->io2.address_length);
4234
4235         sonypi_compat_exit();
4236
4237         sony_laptop_remove_input();
4238
4239         /* pf attrs */
4240         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4241         sony_pf_remove();
4242
4243         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4244                 list_del(&io->list);
4245                 kfree(io);
4246         }
4247         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4248                 list_del(&irq->list);
4249                 kfree(irq);
4250         }
4251         spic_dev.cur_ioport = NULL;
4252         spic_dev.cur_irq = NULL;
4253
4254         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4255         return 0;
4256 }
4257
4258 static int sony_pic_add(struct acpi_device *device)
4259 {
4260         int result;
4261         struct sony_pic_ioport *io, *tmp_io;
4262         struct sony_pic_irq *irq, *tmp_irq;
4263
4264         pr_info("%s v%s\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
4265
4266         spic_dev.acpi_dev = device;
4267         strcpy(acpi_device_class(device), "sony/hotkey");
4268         sony_pic_detect_device_type(&spic_dev);
4269         mutex_init(&spic_dev.lock);
4270
4271         /* read _PRS resources */
4272         result = sony_pic_possible_resources(device);
4273         if (result) {
4274                 pr_err("Unable to read possible resources\n");
4275                 goto err_free_resources;
4276         }
4277
4278         /* setup input devices and helper fifo */
4279         result = sony_laptop_setup_input(device);
4280         if (result) {
4281                 pr_err("Unable to create input devices\n");
4282                 goto err_free_resources;
4283         }
4284
4285         result = sonypi_compat_init();
4286         if (result)
4287                 goto err_remove_input;
4288
4289         /* request io port */
4290         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4291                 if (request_region(io->io1.minimum, io->io1.address_length,
4292                                         "Sony Programmable I/O Device")) {
4293                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4294                                         io->io1.minimum, io->io1.maximum,
4295                                         io->io1.address_length);
4296                         /* Type 1 have 2 ioports */
4297                         if (io->io2.minimum) {
4298                                 if (request_region(io->io2.minimum,
4299                                                 io->io2.address_length,
4300                                                 "Sony Programmable I/O Device")) {
4301                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4302                                                         io->io2.minimum, io->io2.maximum,
4303                                                         io->io2.address_length);
4304                                         spic_dev.cur_ioport = io;
4305                                         break;
4306                                 }
4307                                 else {
4308                                         dprintk("Unable to get I/O port2: "
4309                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4310                                                         io->io2.minimum, io->io2.maximum,
4311                                                         io->io2.address_length);
4312                                         release_region(io->io1.minimum,
4313                                                         io->io1.address_length);
4314                                 }
4315                         }
4316                         else {
4317                                 spic_dev.cur_ioport = io;
4318                                 break;
4319                         }
4320                 }
4321         }
4322         if (!spic_dev.cur_ioport) {
4323                 pr_err("Failed to request_region\n");
4324                 result = -ENODEV;
4325                 goto err_remove_compat;
4326         }
4327
4328         /* request IRQ */
4329         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4330                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4331                                         0, "sony-laptop", &spic_dev)) {
4332                         dprintk("IRQ: %d - triggering: %d - "
4333                                         "polarity: %d - shr: %d\n",
4334                                         irq->irq.interrupts[0],
4335                                         irq->irq.triggering,
4336                                         irq->irq.polarity,
4337                                         irq->irq.sharable);
4338                         spic_dev.cur_irq = irq;
4339                         break;
4340                 }
4341         }
4342         if (!spic_dev.cur_irq) {
4343                 pr_err("Failed to request_irq\n");
4344                 result = -ENODEV;
4345                 goto err_release_region;
4346         }
4347
4348         /* set resource status _SRS */
4349         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4350         if (result) {
4351                 pr_err("Couldn't enable device\n");
4352                 goto err_free_irq;
4353         }
4354
4355         spic_dev.bluetooth_power = -1;
4356         /* create device attributes */
4357         result = sony_pf_add();
4358         if (result)
4359                 goto err_disable_device;
4360
4361         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4362         if (result)
4363                 goto err_remove_pf;
4364
4365         return 0;
4366
4367 err_remove_pf:
4368         sony_pf_remove();
4369
4370 err_disable_device:
4371         sony_pic_disable(device);
4372
4373 err_free_irq:
4374         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4375
4376 err_release_region:
4377         release_region(spic_dev.cur_ioport->io1.minimum,
4378                         spic_dev.cur_ioport->io1.address_length);
4379         if (spic_dev.cur_ioport->io2.minimum)
4380                 release_region(spic_dev.cur_ioport->io2.minimum,
4381                                 spic_dev.cur_ioport->io2.address_length);
4382
4383 err_remove_compat:
4384         sonypi_compat_exit();
4385
4386 err_remove_input:
4387         sony_laptop_remove_input();
4388
4389 err_free_resources:
4390         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4391                 list_del(&io->list);
4392                 kfree(io);
4393         }
4394         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4395                 list_del(&irq->list);
4396                 kfree(irq);
4397         }
4398         spic_dev.cur_ioport = NULL;
4399         spic_dev.cur_irq = NULL;
4400
4401         return result;
4402 }
4403
4404 #ifdef CONFIG_PM_SLEEP
4405 static int sony_pic_suspend(struct device *dev)
4406 {
4407         if (sony_pic_disable(to_acpi_device(dev)))
4408                 return -ENXIO;
4409         return 0;
4410 }
4411
4412 static int sony_pic_resume(struct device *dev)
4413 {
4414         sony_pic_enable(to_acpi_device(dev),
4415                         spic_dev.cur_ioport, spic_dev.cur_irq);
4416         return 0;
4417 }
4418 #endif
4419
4420 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4421
4422 static const struct acpi_device_id sony_pic_device_ids[] = {
4423         {SONY_PIC_HID, 0},
4424         {"", 0},
4425 };
4426
4427 static struct acpi_driver sony_pic_driver = {
4428         .name = SONY_PIC_DRIVER_NAME,
4429         .class = SONY_PIC_CLASS,
4430         .ids = sony_pic_device_ids,
4431         .owner = THIS_MODULE,
4432         .ops = {
4433                 .add = sony_pic_add,
4434                 .remove = sony_pic_remove,
4435                 },
4436         .drv.pm = &sony_pic_pm,
4437 };
4438
4439 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
4440         {
4441                 .ident = "Sony Vaio",
4442                 .matches = {
4443                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4444                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4445                 },
4446         },
4447         {
4448                 .ident = "Sony Vaio",
4449                 .matches = {
4450                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4451                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4452                 },
4453         },
4454         { }
4455 };
4456
4457 static int __init sony_laptop_init(void)
4458 {
4459         int result;
4460
4461         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4462                 result = acpi_bus_register_driver(&sony_pic_driver);
4463                 if (result) {
4464                         pr_err("Unable to register SPIC driver\n");
4465                         goto out;
4466                 }
4467                 spic_drv_registered = 1;
4468         }
4469
4470         result = acpi_bus_register_driver(&sony_nc_driver);
4471         if (result) {
4472                 pr_err("Unable to register SNC driver\n");
4473                 goto out_unregister_pic;
4474         }
4475
4476         return 0;
4477
4478 out_unregister_pic:
4479         if (spic_drv_registered)
4480                 acpi_bus_unregister_driver(&sony_pic_driver);
4481 out:
4482         return result;
4483 }
4484
4485 static void __exit sony_laptop_exit(void)
4486 {
4487         acpi_bus_unregister_driver(&sony_nc_driver);
4488         if (spic_drv_registered)
4489                 acpi_bus_unregister_driver(&sony_pic_driver);
4490 }
4491
4492 module_init(sony_laptop_init);
4493 module_exit(sony_laptop_exit);