kfifo: move out spinlock
[linux-2.6.git] / 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 AlcĂ´ve <www.alcove.com>
18  *
19  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
20  *
21  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
22  *
23  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
24  *
25  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
26  *
27  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
28  *
29  * This program is free software; you can redistribute it and/or modify
30  * it under the terms of the GNU General Public License as published by
31  * the Free Software Foundation; either version 2 of the License, or
32  * (at your option) any later version.
33  *
34  * This program is distributed in the hope that it will be useful,
35  * but WITHOUT ANY WARRANTY; without even the implied warranty of
36  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
37  * GNU General Public License for more details.
38  *
39  * You should have received a copy of the GNU General Public License
40  * along with this program; if not, write to the Free Software
41  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
42  *
43  */
44
45 #include <linux/kernel.h>
46 #include <linux/module.h>
47 #include <linux/moduleparam.h>
48 #include <linux/init.h>
49 #include <linux/types.h>
50 #include <linux/backlight.h>
51 #include <linux/platform_device.h>
52 #include <linux/err.h>
53 #include <linux/dmi.h>
54 #include <linux/pci.h>
55 #include <linux/interrupt.h>
56 #include <linux/delay.h>
57 #include <linux/input.h>
58 #include <linux/kfifo.h>
59 #include <linux/workqueue.h>
60 #include <linux/acpi.h>
61 #include <acpi/acpi_drivers.h>
62 #include <acpi/acpi_bus.h>
63 #include <asm/uaccess.h>
64 #include <linux/sonypi.h>
65 #include <linux/sony-laptop.h>
66 #include <linux/rfkill.h>
67 #ifdef CONFIG_SONYPI_COMPAT
68 #include <linux/poll.h>
69 #include <linux/miscdevice.h>
70 #endif
71
72 #define DRV_PFX                 "sony-laptop: "
73 #define dprintk(msg...)         do {                    \
74         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
75 } while (0)
76
77 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
78
79 #define SONY_NC_CLASS           "sony-nc"
80 #define SONY_NC_HID             "SNY5001"
81 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
82
83 #define SONY_PIC_CLASS          "sony-pic"
84 #define SONY_PIC_HID            "SNY6001"
85 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
86
87 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
88 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
89 MODULE_LICENSE("GPL");
90 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
91
92 static int debug;
93 module_param(debug, int, 0);
94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
95                  "the development of this driver");
96
97 static int no_spic;             /* = 0 */
98 module_param(no_spic, int, 0444);
99 MODULE_PARM_DESC(no_spic,
100                  "set this if you don't want to enable the SPIC device");
101
102 static int compat;              /* = 0 */
103 module_param(compat, int, 0444);
104 MODULE_PARM_DESC(compat,
105                  "set this if you want to enable backward compatibility mode");
106
107 static unsigned long mask = 0xffffffff;
108 module_param(mask, ulong, 0644);
109 MODULE_PARM_DESC(mask,
110                  "set this to the mask of event you want to enable (see doc)");
111
112 static int camera;              /* = 0 */
113 module_param(camera, int, 0444);
114 MODULE_PARM_DESC(camera,
115                  "set this to 1 to enable Motion Eye camera controls "
116                  "(only use it if you have a C1VE or C1VN model)");
117
118 #ifdef CONFIG_SONYPI_COMPAT
119 static int minor = -1;
120 module_param(minor, int, 0);
121 MODULE_PARM_DESC(minor,
122                  "minor number of the misc device for the SPIC compatibility code, "
123                  "default is -1 (automatic)");
124 #endif
125
126 enum sony_nc_rfkill {
127         SONY_WIFI,
128         SONY_BLUETOOTH,
129         SONY_WWAN,
130         SONY_WIMAX,
131         N_SONY_RFKILL,
132 };
133
134 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
135 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
136 static void sony_nc_rfkill_update(void);
137
138 /*********** Input Devices ***********/
139
140 #define SONY_LAPTOP_BUF_SIZE    128
141 struct sony_laptop_input_s {
142         atomic_t                users;
143         struct input_dev        *jog_dev;
144         struct input_dev        *key_dev;
145         struct kfifo            fifo;
146         spinlock_t              fifo_lock;
147         struct workqueue_struct *wq;
148 };
149
150 static struct sony_laptop_input_s sony_laptop_input = {
151         .users = ATOMIC_INIT(0),
152 };
153
154 struct sony_laptop_keypress {
155         struct input_dev *dev;
156         int key;
157 };
158
159 /* Correspondance table between sonypi events
160  * and input layer indexes in the keymap
161  */
162 static int sony_laptop_input_index[] = {
163         -1,     /*  0 no event */
164         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
165         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
166         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
167         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
168         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
169         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
170          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
171          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
172          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
173          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
174          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
175          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
176          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
177          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
178          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
179          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
180         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
181         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
182         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
183         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
184         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
185         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
186         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
187         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
188         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
189         19,     /* 26 SONYPI_EVENT_FNKEY_D */
190         20,     /* 27 SONYPI_EVENT_FNKEY_E */
191         21,     /* 28 SONYPI_EVENT_FNKEY_F */
192         22,     /* 29 SONYPI_EVENT_FNKEY_S */
193         23,     /* 30 SONYPI_EVENT_FNKEY_B */
194         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
195         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
196         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
197         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
198         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
199         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
200         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
201         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
202         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
203         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
204         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
205         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
206         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
207         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
208         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
209         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
210         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
211         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
212         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
213         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
214         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
215         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
216         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
217         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
218         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
219         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
220         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
221         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
222         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
223         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
224         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
225         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
226         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
227         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
228         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
229         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
230         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
231         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
232         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
233         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
234         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
235 };
236
237 static int sony_laptop_input_keycode_map[] = {
238         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
239         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
240         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
241         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
242         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
243         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
244         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
245         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
246         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
247         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
248         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
249         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
250         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
251         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
252         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
253         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
254         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
255         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
256         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
257         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
258         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
259         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
260         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
261         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
262         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
263         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
264         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
265         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
266         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
267         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
268         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
269         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
270         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
271         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
272         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
273         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
274         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
275         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
276         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
277         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
278         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
279         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
280         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
281         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
282         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
283         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
284         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
285         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
286         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
287         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
288         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
289         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
290         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
291         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
292         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
293         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
294         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
295         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
296 };
297
298 /* release buttons after a short delay if pressed */
299 static void do_sony_laptop_release_key(struct work_struct *work)
300 {
301         struct sony_laptop_keypress kp;
302
303         while (kfifo_get_locked(&sony_laptop_input.fifo, (unsigned char *)&kp,
304                         sizeof(kp), &sony_laptop_input.fifo_lock)
305                         == sizeof(kp)) {
306                 msleep(10);
307                 input_report_key(kp.dev, kp.key, 0);
308                 input_sync(kp.dev);
309         }
310 }
311 static DECLARE_WORK(sony_laptop_release_key_work,
312                 do_sony_laptop_release_key);
313
314 /* forward event to the input subsystem */
315 static void sony_laptop_report_input_event(u8 event)
316 {
317         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
318         struct input_dev *key_dev = sony_laptop_input.key_dev;
319         struct sony_laptop_keypress kp = { NULL };
320
321         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
322                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
323                 /* Nothing, not all VAIOs generate this event */
324                 return;
325         }
326
327         /* report events */
328         switch (event) {
329         /* jog_dev events */
330         case SONYPI_EVENT_JOGDIAL_UP:
331         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
332                 input_report_rel(jog_dev, REL_WHEEL, 1);
333                 input_sync(jog_dev);
334                 return;
335
336         case SONYPI_EVENT_JOGDIAL_DOWN:
337         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
338                 input_report_rel(jog_dev, REL_WHEEL, -1);
339                 input_sync(jog_dev);
340                 return;
341
342         /* key_dev events */
343         case SONYPI_EVENT_JOGDIAL_PRESSED:
344                 kp.key = BTN_MIDDLE;
345                 kp.dev = jog_dev;
346                 break;
347
348         default:
349                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
350                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
351                         break;
352                 }
353                 if (sony_laptop_input_index[event] != -1) {
354                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
355                         if (kp.key != KEY_UNKNOWN)
356                                 kp.dev = key_dev;
357                 }
358                 break;
359         }
360
361         if (kp.dev) {
362                 input_report_key(kp.dev, kp.key, 1);
363                 /* we emit the scancode so we can always remap the key */
364                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
365                 input_sync(kp.dev);
366                 kfifo_put_locked(&sony_laptop_input.fifo,
367                           (unsigned char *)&kp, sizeof(kp),
368                           &sony_laptop_input.fifo_lock);
369
370                 if (!work_pending(&sony_laptop_release_key_work))
371                         queue_work(sony_laptop_input.wq,
372                                         &sony_laptop_release_key_work);
373         } else
374                 dprintk("unknown input event %.2x\n", event);
375 }
376
377 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
378 {
379         struct input_dev *jog_dev;
380         struct input_dev *key_dev;
381         int i;
382         int error;
383
384         /* don't run again if already initialized */
385         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
386                 return 0;
387
388         /* kfifo */
389         spin_lock_init(&sony_laptop_input.fifo_lock);
390         error =
391          kfifo_alloc(&sony_laptop_input.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
392         if (error) {
393                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
394                 goto err_dec_users;
395         }
396
397         /* init workqueue */
398         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
399         if (!sony_laptop_input.wq) {
400                 printk(KERN_ERR DRV_PFX
401                                 "Unable to create workqueue.\n");
402                 error = -ENXIO;
403                 goto err_free_kfifo;
404         }
405
406         /* input keys */
407         key_dev = input_allocate_device();
408         if (!key_dev) {
409                 error = -ENOMEM;
410                 goto err_destroy_wq;
411         }
412
413         key_dev->name = "Sony Vaio Keys";
414         key_dev->id.bustype = BUS_ISA;
415         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
416         key_dev->dev.parent = &acpi_device->dev;
417
418         /* Initialize the Input Drivers: special keys */
419         set_bit(EV_KEY, key_dev->evbit);
420         set_bit(EV_MSC, key_dev->evbit);
421         set_bit(MSC_SCAN, key_dev->mscbit);
422         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
423         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
424         key_dev->keycode = &sony_laptop_input_keycode_map;
425         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
426                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
427                         set_bit(sony_laptop_input_keycode_map[i],
428                                 key_dev->keybit);
429                 }
430         }
431
432         error = input_register_device(key_dev);
433         if (error)
434                 goto err_free_keydev;
435
436         sony_laptop_input.key_dev = key_dev;
437
438         /* jogdial */
439         jog_dev = input_allocate_device();
440         if (!jog_dev) {
441                 error = -ENOMEM;
442                 goto err_unregister_keydev;
443         }
444
445         jog_dev->name = "Sony Vaio Jogdial";
446         jog_dev->id.bustype = BUS_ISA;
447         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
448         key_dev->dev.parent = &acpi_device->dev;
449
450         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
451         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
452         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
453
454         error = input_register_device(jog_dev);
455         if (error)
456                 goto err_free_jogdev;
457
458         sony_laptop_input.jog_dev = jog_dev;
459
460         return 0;
461
462 err_free_jogdev:
463         input_free_device(jog_dev);
464
465 err_unregister_keydev:
466         input_unregister_device(key_dev);
467         /* to avoid kref underflow below at input_free_device */
468         key_dev = NULL;
469
470 err_free_keydev:
471         input_free_device(key_dev);
472
473 err_destroy_wq:
474         destroy_workqueue(sony_laptop_input.wq);
475
476 err_free_kfifo:
477         kfifo_free(&sony_laptop_input.fifo);
478
479 err_dec_users:
480         atomic_dec(&sony_laptop_input.users);
481         return error;
482 }
483
484 static void sony_laptop_remove_input(void)
485 {
486         /* cleanup only after the last user has gone */
487         if (!atomic_dec_and_test(&sony_laptop_input.users))
488                 return;
489
490         /* flush workqueue first */
491         flush_workqueue(sony_laptop_input.wq);
492
493         /* destroy input devs */
494         input_unregister_device(sony_laptop_input.key_dev);
495         sony_laptop_input.key_dev = NULL;
496
497         if (sony_laptop_input.jog_dev) {
498                 input_unregister_device(sony_laptop_input.jog_dev);
499                 sony_laptop_input.jog_dev = NULL;
500         }
501
502         destroy_workqueue(sony_laptop_input.wq);
503         kfifo_free(&sony_laptop_input.fifo);
504 }
505
506 /*********** Platform Device ***********/
507
508 static atomic_t sony_pf_users = ATOMIC_INIT(0);
509 static struct platform_driver sony_pf_driver = {
510         .driver = {
511                    .name = "sony-laptop",
512                    .owner = THIS_MODULE,
513                    }
514 };
515 static struct platform_device *sony_pf_device;
516
517 static int sony_pf_add(void)
518 {
519         int ret = 0;
520
521         /* don't run again if already initialized */
522         if (atomic_add_return(1, &sony_pf_users) > 1)
523                 return 0;
524
525         ret = platform_driver_register(&sony_pf_driver);
526         if (ret)
527                 goto out;
528
529         sony_pf_device = platform_device_alloc("sony-laptop", -1);
530         if (!sony_pf_device) {
531                 ret = -ENOMEM;
532                 goto out_platform_registered;
533         }
534
535         ret = platform_device_add(sony_pf_device);
536         if (ret)
537                 goto out_platform_alloced;
538
539         return 0;
540
541       out_platform_alloced:
542         platform_device_put(sony_pf_device);
543         sony_pf_device = NULL;
544       out_platform_registered:
545         platform_driver_unregister(&sony_pf_driver);
546       out:
547         atomic_dec(&sony_pf_users);
548         return ret;
549 }
550
551 static void sony_pf_remove(void)
552 {
553         /* deregister only after the last user has gone */
554         if (!atomic_dec_and_test(&sony_pf_users))
555                 return;
556
557         platform_device_del(sony_pf_device);
558         platform_device_put(sony_pf_device);
559         platform_driver_unregister(&sony_pf_driver);
560 }
561
562 /*********** SNC (SNY5001) Device ***********/
563
564 /* the device uses 1-based values, while the backlight subsystem uses
565    0-based values */
566 #define SONY_MAX_BRIGHTNESS     8
567
568 #define SNC_VALIDATE_IN         0
569 #define SNC_VALIDATE_OUT        1
570
571 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
572                               char *);
573 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
574                                const char *, size_t);
575 static int boolean_validate(const int, const int);
576 static int brightness_default_validate(const int, const int);
577
578 struct sony_nc_value {
579         char *name;             /* name of the entry */
580         char **acpiget;         /* names of the ACPI get function */
581         char **acpiset;         /* names of the ACPI set function */
582         int (*validate)(const int, const int);  /* input/output validation */
583         int value;              /* current setting */
584         int valid;              /* Has ever been set */
585         int debug;              /* active only in debug mode ? */
586         struct device_attribute devattr;        /* sysfs atribute */
587 };
588
589 #define SNC_HANDLE_NAMES(_name, _values...) \
590         static char *snc_##_name[] = { _values, NULL }
591
592 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
593         { \
594                 .name           = __stringify(_name), \
595                 .acpiget        = _getters, \
596                 .acpiset        = _setters, \
597                 .validate       = _validate, \
598                 .debug          = _debug, \
599                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
600         }
601
602 #define SNC_HANDLE_NULL { .name = NULL }
603
604 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
605
606 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
607 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
608
609 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
610 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
611
612 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
613 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
614
615 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
616 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
617
618 SNC_HANDLE_NAMES(lidstate_get, "GLID");
619
620 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
621 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
622
623 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
624 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
625
626 SNC_HANDLE_NAMES(PID_get, "GPID");
627
628 SNC_HANDLE_NAMES(CTR_get, "GCTR");
629 SNC_HANDLE_NAMES(CTR_set, "SCTR");
630
631 SNC_HANDLE_NAMES(PCR_get, "GPCR");
632 SNC_HANDLE_NAMES(PCR_set, "SPCR");
633
634 SNC_HANDLE_NAMES(CMI_get, "GCMI");
635 SNC_HANDLE_NAMES(CMI_set, "SCMI");
636
637 static struct sony_nc_value sony_nc_values[] = {
638         SNC_HANDLE(brightness_default, snc_brightness_def_get,
639                         snc_brightness_def_set, brightness_default_validate, 0),
640         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
641         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
642         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
643                         boolean_validate, 0),
644         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
645                         boolean_validate, 1),
646         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
647                         boolean_validate, 0),
648         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
649                         boolean_validate, 0),
650         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
651                         boolean_validate, 0),
652         /* unknown methods */
653         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
654         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
655         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
656         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
657         SNC_HANDLE_NULL
658 };
659
660 static acpi_handle sony_nc_acpi_handle;
661 static struct acpi_device *sony_nc_acpi_device = NULL;
662
663 /*
664  * acpi_evaluate_object wrappers
665  */
666 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
667 {
668         struct acpi_buffer output;
669         union acpi_object out_obj;
670         acpi_status status;
671
672         output.length = sizeof(out_obj);
673         output.pointer = &out_obj;
674
675         status = acpi_evaluate_object(handle, name, NULL, &output);
676         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
677                 *result = out_obj.integer.value;
678                 return 0;
679         }
680
681         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
682
683         return -1;
684 }
685
686 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
687                             int *result)
688 {
689         struct acpi_object_list params;
690         union acpi_object in_obj;
691         struct acpi_buffer output;
692         union acpi_object out_obj;
693         acpi_status status;
694
695         params.count = 1;
696         params.pointer = &in_obj;
697         in_obj.type = ACPI_TYPE_INTEGER;
698         in_obj.integer.value = value;
699
700         output.length = sizeof(out_obj);
701         output.pointer = &out_obj;
702
703         status = acpi_evaluate_object(handle, name, &params, &output);
704         if (status == AE_OK) {
705                 if (result != NULL) {
706                         if (out_obj.type != ACPI_TYPE_INTEGER) {
707                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
708                                        "return type\n");
709                                 return -1;
710                         }
711                         *result = out_obj.integer.value;
712                 }
713                 return 0;
714         }
715
716         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
717
718         return -1;
719 }
720
721 static int sony_find_snc_handle(int handle)
722 {
723         int i;
724         int result;
725
726         for (i = 0x20; i < 0x30; i++) {
727                 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
728                 if (result == handle)
729                         return i-0x20;
730         }
731
732         return -1;
733 }
734
735 static int sony_call_snc_handle(int handle, int argument, int *result)
736 {
737         int offset = sony_find_snc_handle(handle);
738
739         if (offset < 0)
740                 return -1;
741
742         return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
743                                 result);
744 }
745
746 /*
747  * sony_nc_values input/output validate functions
748  */
749
750 /* brightness_default_validate:
751  *
752  * manipulate input output values to keep consistency with the
753  * backlight framework for which brightness values are 0-based.
754  */
755 static int brightness_default_validate(const int direction, const int value)
756 {
757         switch (direction) {
758                 case SNC_VALIDATE_OUT:
759                         return value - 1;
760                 case SNC_VALIDATE_IN:
761                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
762                                 return value + 1;
763         }
764         return -EINVAL;
765 }
766
767 /* boolean_validate:
768  *
769  * on input validate boolean values 0/1, on output just pass the
770  * received value.
771  */
772 static int boolean_validate(const int direction, const int value)
773 {
774         if (direction == SNC_VALIDATE_IN) {
775                 if (value != 0 && value != 1)
776                         return -EINVAL;
777         }
778         return value;
779 }
780
781 /*
782  * Sysfs show/store common to all sony_nc_values
783  */
784 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
785                               char *buffer)
786 {
787         int value;
788         struct sony_nc_value *item =
789             container_of(attr, struct sony_nc_value, devattr);
790
791         if (!*item->acpiget)
792                 return -EIO;
793
794         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
795                 return -EIO;
796
797         if (item->validate)
798                 value = item->validate(SNC_VALIDATE_OUT, value);
799
800         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
801 }
802
803 static ssize_t sony_nc_sysfs_store(struct device *dev,
804                                struct device_attribute *attr,
805                                const char *buffer, size_t count)
806 {
807         int value;
808         struct sony_nc_value *item =
809             container_of(attr, struct sony_nc_value, devattr);
810
811         if (!item->acpiset)
812                 return -EIO;
813
814         if (count > 31)
815                 return -EINVAL;
816
817         value = simple_strtoul(buffer, NULL, 10);
818
819         if (item->validate)
820                 value = item->validate(SNC_VALIDATE_IN, value);
821
822         if (value < 0)
823                 return value;
824
825         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
826                 return -EIO;
827         item->value = value;
828         item->valid = 1;
829         return count;
830 }
831
832
833 /*
834  * Backlight device
835  */
836 static int sony_backlight_update_status(struct backlight_device *bd)
837 {
838         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
839                                 bd->props.brightness + 1, NULL);
840 }
841
842 static int sony_backlight_get_brightness(struct backlight_device *bd)
843 {
844         int value;
845
846         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
847                 return 0;
848         /* brightness levels are 1-based, while backlight ones are 0-based */
849         return value - 1;
850 }
851
852 static struct backlight_device *sony_backlight_device;
853 static struct backlight_ops sony_backlight_ops = {
854         .update_status = sony_backlight_update_status,
855         .get_brightness = sony_backlight_get_brightness,
856 };
857
858 /*
859  * New SNC-only Vaios event mapping to driver known keys
860  */
861 struct sony_nc_event {
862         u8      data;
863         u8      event;
864 };
865
866 static struct sony_nc_event sony_100_events[] = {
867         { 0x90, SONYPI_EVENT_PKEY_P1 },
868         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
869         { 0x91, SONYPI_EVENT_PKEY_P2 },
870         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
871         { 0x81, SONYPI_EVENT_FNKEY_F1 },
872         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
873         { 0x82, SONYPI_EVENT_FNKEY_F2 },
874         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
875         { 0x83, SONYPI_EVENT_FNKEY_F3 },
876         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
877         { 0x84, SONYPI_EVENT_FNKEY_F4 },
878         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
879         { 0x85, SONYPI_EVENT_FNKEY_F5 },
880         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
881         { 0x86, SONYPI_EVENT_FNKEY_F6 },
882         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
883         { 0x87, SONYPI_EVENT_FNKEY_F7 },
884         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
885         { 0x89, SONYPI_EVENT_FNKEY_F9 },
886         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
887         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
888         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
889         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
890         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
891         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
892         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
893         { 0, 0 },
894 };
895
896 static struct sony_nc_event sony_127_events[] = {
897         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
898         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
899         { 0x82, SONYPI_EVENT_PKEY_P1 },
900         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
901         { 0x83, SONYPI_EVENT_PKEY_P2 },
902         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
903         { 0x84, SONYPI_EVENT_PKEY_P3 },
904         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
905         { 0x85, SONYPI_EVENT_PKEY_P4 },
906         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
907         { 0x86, SONYPI_EVENT_PKEY_P5 },
908         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
909         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
910         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
911         { 0, 0 },
912 };
913
914 /*
915  * ACPI callbacks
916  */
917 static void sony_nc_notify(struct acpi_device *device, u32 event)
918 {
919         u32 ev = event;
920
921         if (ev >= 0x90) {
922                 /* New-style event */
923                 int result;
924                 int key_handle = 0;
925                 ev -= 0x90;
926
927                 if (sony_find_snc_handle(0x100) == ev)
928                         key_handle = 0x100;
929                 if (sony_find_snc_handle(0x127) == ev)
930                         key_handle = 0x127;
931
932                 if (key_handle) {
933                         struct sony_nc_event *key_event;
934
935                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
936                                 dprintk("sony_nc_notify, unable to decode"
937                                         " event 0x%.2x 0x%.2x\n", key_handle,
938                                         ev);
939                                 /* restore the original event */
940                                 ev = event;
941                         } else {
942                                 ev = result & 0xFF;
943
944                                 if (key_handle == 0x100)
945                                         key_event = sony_100_events;
946                                 else
947                                         key_event = sony_127_events;
948
949                                 for (; key_event->data; key_event++) {
950                                         if (key_event->data == ev) {
951                                                 ev = key_event->event;
952                                                 break;
953                                         }
954                                 }
955
956                                 if (!key_event->data)
957                                         printk(KERN_INFO DRV_PFX
958                                                         "Unknown event: 0x%x 0x%x\n",
959                                                         key_handle,
960                                                         ev);
961                                 else
962                                         sony_laptop_report_input_event(ev);
963                         }
964                 } else if (sony_find_snc_handle(0x124) == ev) {
965                         sony_nc_rfkill_update();
966                         return;
967                 }
968         } else
969                 sony_laptop_report_input_event(ev);
970
971         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
972         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
973 }
974
975 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
976                                       void *context, void **return_value)
977 {
978         struct acpi_device_info *info;
979
980         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
981                 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
982                         (char *)&info->name, info->param_count);
983
984                 kfree(info);
985         }
986
987         return AE_OK;
988 }
989
990 /*
991  * ACPI device
992  */
993 static int sony_nc_function_setup(struct acpi_device *device)
994 {
995         int result;
996
997         /* Enable all events */
998         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
999
1000         /* Setup hotkeys */
1001         sony_call_snc_handle(0x0100, 0, &result);
1002         sony_call_snc_handle(0x0101, 0, &result);
1003         sony_call_snc_handle(0x0102, 0x100, &result);
1004         sony_call_snc_handle(0x0127, 0, &result);
1005
1006         return 0;
1007 }
1008
1009 static int sony_nc_resume(struct acpi_device *device)
1010 {
1011         struct sony_nc_value *item;
1012         acpi_handle handle;
1013
1014         for (item = sony_nc_values; item->name; item++) {
1015                 int ret;
1016
1017                 if (!item->valid)
1018                         continue;
1019                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1020                                        item->value, NULL);
1021                 if (ret < 0) {
1022                         printk("%s: %d\n", __func__, ret);
1023                         break;
1024                 }
1025         }
1026
1027         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1028                                          &handle))) {
1029                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1030                         dprintk("ECON Method failed\n");
1031         }
1032
1033         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1034                                          &handle))) {
1035                 dprintk("Doing SNC setup\n");
1036                 sony_nc_function_setup(device);
1037         }
1038
1039         /* set the last requested brightness level */
1040         if (sony_backlight_device &&
1041                         sony_backlight_update_status(sony_backlight_device) < 0)
1042                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1043
1044         /* re-read rfkill state */
1045         sony_nc_rfkill_update();
1046
1047         return 0;
1048 }
1049
1050 static void sony_nc_rfkill_cleanup(void)
1051 {
1052         int i;
1053
1054         for (i = 0; i < N_SONY_RFKILL; i++) {
1055                 if (sony_rfkill_devices[i]) {
1056                         rfkill_unregister(sony_rfkill_devices[i]);
1057                         rfkill_destroy(sony_rfkill_devices[i]);
1058                 }
1059         }
1060 }
1061
1062 static int sony_nc_rfkill_set(void *data, bool blocked)
1063 {
1064         int result;
1065         int argument = sony_rfkill_address[(long) data] + 0x100;
1066
1067         if (!blocked)
1068                 argument |= 0xff0000;
1069
1070         return sony_call_snc_handle(0x124, argument, &result);
1071 }
1072
1073 static const struct rfkill_ops sony_rfkill_ops = {
1074         .set_block = sony_nc_rfkill_set,
1075 };
1076
1077 static int sony_nc_setup_rfkill(struct acpi_device *device,
1078                                 enum sony_nc_rfkill nc_type)
1079 {
1080         int err = 0;
1081         struct rfkill *rfk;
1082         enum rfkill_type type;
1083         const char *name;
1084         int result;
1085         bool hwblock;
1086
1087         switch (nc_type) {
1088         case SONY_WIFI:
1089                 type = RFKILL_TYPE_WLAN;
1090                 name = "sony-wifi";
1091                 break;
1092         case SONY_BLUETOOTH:
1093                 type = RFKILL_TYPE_BLUETOOTH;
1094                 name = "sony-bluetooth";
1095                 break;
1096         case SONY_WWAN:
1097                 type = RFKILL_TYPE_WWAN;
1098                 name = "sony-wwan";
1099                 break;
1100         case SONY_WIMAX:
1101                 type = RFKILL_TYPE_WIMAX;
1102                 name = "sony-wimax";
1103                 break;
1104         default:
1105                 return -EINVAL;
1106         }
1107
1108         rfk = rfkill_alloc(name, &device->dev, type,
1109                            &sony_rfkill_ops, (void *)nc_type);
1110         if (!rfk)
1111                 return -ENOMEM;
1112
1113         sony_call_snc_handle(0x124, 0x200, &result);
1114         hwblock = !(result & 0x1);
1115         rfkill_set_hw_state(rfk, hwblock);
1116
1117         err = rfkill_register(rfk);
1118         if (err) {
1119                 rfkill_destroy(rfk);
1120                 return err;
1121         }
1122         sony_rfkill_devices[nc_type] = rfk;
1123         return err;
1124 }
1125
1126 static void sony_nc_rfkill_update()
1127 {
1128         enum sony_nc_rfkill i;
1129         int result;
1130         bool hwblock;
1131
1132         sony_call_snc_handle(0x124, 0x200, &result);
1133         hwblock = !(result & 0x1);
1134
1135         for (i = 0; i < N_SONY_RFKILL; i++) {
1136                 int argument = sony_rfkill_address[i];
1137
1138                 if (!sony_rfkill_devices[i])
1139                         continue;
1140
1141                 if (hwblock) {
1142                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1143                                 /* we already know we're blocked */
1144                         }
1145                         continue;
1146                 }
1147
1148                 sony_call_snc_handle(0x124, argument, &result);
1149                 rfkill_set_states(sony_rfkill_devices[i],
1150                                   !(result & 0xf), false);
1151         }
1152 }
1153
1154 static int sony_nc_rfkill_setup(struct acpi_device *device)
1155 {
1156         int result, ret;
1157
1158         if (sony_find_snc_handle(0x124) == -1)
1159                 return -1;
1160
1161         ret = sony_call_snc_handle(0x124, 0xb00, &result);
1162         if (ret) {
1163                 printk(KERN_INFO DRV_PFX
1164                        "Unable to enumerate rfkill devices: %x\n", ret);
1165                 return ret;
1166         }
1167
1168         if (result & 0x1)
1169                 sony_nc_setup_rfkill(device, SONY_WIFI);
1170         if (result & 0x2)
1171                 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1172         if (result & 0x1c)
1173                 sony_nc_setup_rfkill(device, SONY_WWAN);
1174         if (result & 0x20)
1175                 sony_nc_setup_rfkill(device, SONY_WIMAX);
1176
1177         return 0;
1178 }
1179
1180 static int sony_nc_add(struct acpi_device *device)
1181 {
1182         acpi_status status;
1183         int result = 0;
1184         acpi_handle handle;
1185         struct sony_nc_value *item;
1186
1187         printk(KERN_INFO DRV_PFX "%s v%s.\n",
1188                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1189
1190         sony_nc_acpi_device = device;
1191         strcpy(acpi_device_class(device), "sony/hotkey");
1192
1193         sony_nc_acpi_handle = device->handle;
1194
1195         /* read device status */
1196         result = acpi_bus_get_status(device);
1197         /* bail IFF the above call was successful and the device is not present */
1198         if (!result && !device->status.present) {
1199                 dprintk("Device not present\n");
1200                 result = -ENODEV;
1201                 goto outwalk;
1202         }
1203
1204         if (debug) {
1205                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1206                                              1, sony_walk_callback, NULL, NULL, NULL);
1207                 if (ACPI_FAILURE(status)) {
1208                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1209                         result = -ENODEV;
1210                         goto outwalk;
1211                 }
1212         }
1213
1214         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1215                                          &handle))) {
1216                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1217                         dprintk("ECON Method failed\n");
1218         }
1219
1220         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1221                                          &handle))) {
1222                 dprintk("Doing SNC setup\n");
1223                 sony_nc_function_setup(device);
1224                 sony_nc_rfkill_setup(device);
1225         }
1226
1227         /* setup input devices and helper fifo */
1228         result = sony_laptop_setup_input(device);
1229         if (result) {
1230                 printk(KERN_ERR DRV_PFX
1231                                 "Unable to create input devices.\n");
1232                 goto outwalk;
1233         }
1234
1235         if (acpi_video_backlight_support()) {
1236                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1237                        "controlled by ACPI video driver\n");
1238         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1239                                                 &handle))) {
1240                 sony_backlight_device = backlight_device_register("sony", NULL,
1241                                                                   NULL,
1242                                                                   &sony_backlight_ops);
1243
1244                 if (IS_ERR(sony_backlight_device)) {
1245                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1246                         sony_backlight_device = NULL;
1247                 } else {
1248                         sony_backlight_device->props.brightness =
1249                             sony_backlight_get_brightness
1250                             (sony_backlight_device);
1251                         sony_backlight_device->props.max_brightness =
1252                             SONY_MAX_BRIGHTNESS - 1;
1253                 }
1254
1255         }
1256
1257         result = sony_pf_add();
1258         if (result)
1259                 goto outbacklight;
1260
1261         /* create sony_pf sysfs attributes related to the SNC device */
1262         for (item = sony_nc_values; item->name; ++item) {
1263
1264                 if (!debug && item->debug)
1265                         continue;
1266
1267                 /* find the available acpiget as described in the DSDT */
1268                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1269                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1270                                                          *item->acpiget,
1271                                                          &handle))) {
1272                                 dprintk("Found %s getter: %s\n",
1273                                                 item->name, *item->acpiget);
1274                                 item->devattr.attr.mode |= S_IRUGO;
1275                                 break;
1276                         }
1277                 }
1278
1279                 /* find the available acpiset as described in the DSDT */
1280                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1281                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1282                                                          *item->acpiset,
1283                                                          &handle))) {
1284                                 dprintk("Found %s setter: %s\n",
1285                                                 item->name, *item->acpiset);
1286                                 item->devattr.attr.mode |= S_IWUSR;
1287                                 break;
1288                         }
1289                 }
1290
1291                 if (item->devattr.attr.mode != 0) {
1292                         result =
1293                             device_create_file(&sony_pf_device->dev,
1294                                                &item->devattr);
1295                         if (result)
1296                                 goto out_sysfs;
1297                 }
1298         }
1299
1300         return 0;
1301
1302       out_sysfs:
1303         for (item = sony_nc_values; item->name; ++item) {
1304                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1305         }
1306         sony_pf_remove();
1307
1308       outbacklight:
1309         if (sony_backlight_device)
1310                 backlight_device_unregister(sony_backlight_device);
1311
1312         sony_laptop_remove_input();
1313
1314       outwalk:
1315         sony_nc_rfkill_cleanup();
1316         return result;
1317 }
1318
1319 static int sony_nc_remove(struct acpi_device *device, int type)
1320 {
1321         struct sony_nc_value *item;
1322
1323         if (sony_backlight_device)
1324                 backlight_device_unregister(sony_backlight_device);
1325
1326         sony_nc_acpi_device = NULL;
1327
1328         for (item = sony_nc_values; item->name; ++item) {
1329                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1330         }
1331
1332         sony_pf_remove();
1333         sony_laptop_remove_input();
1334         sony_nc_rfkill_cleanup();
1335         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1336
1337         return 0;
1338 }
1339
1340 static const struct acpi_device_id sony_device_ids[] = {
1341         {SONY_NC_HID, 0},
1342         {SONY_PIC_HID, 0},
1343         {"", 0},
1344 };
1345 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1346
1347 static const struct acpi_device_id sony_nc_device_ids[] = {
1348         {SONY_NC_HID, 0},
1349         {"", 0},
1350 };
1351
1352 static struct acpi_driver sony_nc_driver = {
1353         .name = SONY_NC_DRIVER_NAME,
1354         .class = SONY_NC_CLASS,
1355         .ids = sony_nc_device_ids,
1356         .owner = THIS_MODULE,
1357         .ops = {
1358                 .add = sony_nc_add,
1359                 .remove = sony_nc_remove,
1360                 .resume = sony_nc_resume,
1361                 .notify = sony_nc_notify,
1362                 },
1363 };
1364
1365 /*********** SPIC (SNY6001) Device ***********/
1366
1367 #define SONYPI_DEVICE_TYPE1     0x00000001
1368 #define SONYPI_DEVICE_TYPE2     0x00000002
1369 #define SONYPI_DEVICE_TYPE3     0x00000004
1370 #define SONYPI_DEVICE_TYPE4     0x00000008
1371
1372 #define SONYPI_TYPE1_OFFSET     0x04
1373 #define SONYPI_TYPE2_OFFSET     0x12
1374 #define SONYPI_TYPE3_OFFSET     0x12
1375
1376 struct sony_pic_ioport {
1377         struct acpi_resource_io io1;
1378         struct acpi_resource_io io2;
1379         struct list_head        list;
1380 };
1381
1382 struct sony_pic_irq {
1383         struct acpi_resource_irq        irq;
1384         struct list_head                list;
1385 };
1386
1387 struct sonypi_eventtypes {
1388         u8                      data;
1389         unsigned long           mask;
1390         struct sonypi_event     *events;
1391 };
1392
1393 struct sony_pic_dev {
1394         struct acpi_device              *acpi_dev;
1395         struct sony_pic_irq             *cur_irq;
1396         struct sony_pic_ioport          *cur_ioport;
1397         struct list_head                interrupts;
1398         struct list_head                ioports;
1399         struct mutex                    lock;
1400         struct sonypi_eventtypes        *event_types;
1401         int                             (*handle_irq)(const u8, const u8);
1402         int                             model;
1403         u16                             evport_offset;
1404         u8                              camera_power;
1405         u8                              bluetooth_power;
1406         u8                              wwan_power;
1407 };
1408
1409 static struct sony_pic_dev spic_dev = {
1410         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1411         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1412 };
1413
1414 static int spic_drv_registered;
1415
1416 /* Event masks */
1417 #define SONYPI_JOGGER_MASK                      0x00000001
1418 #define SONYPI_CAPTURE_MASK                     0x00000002
1419 #define SONYPI_FNKEY_MASK                       0x00000004
1420 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1421 #define SONYPI_PKEY_MASK                        0x00000010
1422 #define SONYPI_BACK_MASK                        0x00000020
1423 #define SONYPI_HELP_MASK                        0x00000040
1424 #define SONYPI_LID_MASK                         0x00000080
1425 #define SONYPI_ZOOM_MASK                        0x00000100
1426 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1427 #define SONYPI_MEYE_MASK                        0x00000400
1428 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1429 #define SONYPI_BATTERY_MASK                     0x00001000
1430 #define SONYPI_WIRELESS_MASK                    0x00002000
1431
1432 struct sonypi_event {
1433         u8      data;
1434         u8      event;
1435 };
1436
1437 /* The set of possible button release events */
1438 static struct sonypi_event sonypi_releaseev[] = {
1439         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1440         { 0, 0 }
1441 };
1442
1443 /* The set of possible jogger events  */
1444 static struct sonypi_event sonypi_joggerev[] = {
1445         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1446         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1447         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1448         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1449         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1450         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1451         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1452         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1453         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1454         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1455         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1456         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1457         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1458         { 0, 0 }
1459 };
1460
1461 /* The set of possible capture button events */
1462 static struct sonypi_event sonypi_captureev[] = {
1463         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1464         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1465         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1466         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1467         { 0, 0 }
1468 };
1469
1470 /* The set of possible fnkeys events */
1471 static struct sonypi_event sonypi_fnkeyev[] = {
1472         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1473         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1474         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1475         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1476         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1477         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1478         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1479         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1480         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1481         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1482         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1483         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1484         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1485         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1486         { 0x21, SONYPI_EVENT_FNKEY_1 },
1487         { 0x22, SONYPI_EVENT_FNKEY_2 },
1488         { 0x31, SONYPI_EVENT_FNKEY_D },
1489         { 0x32, SONYPI_EVENT_FNKEY_E },
1490         { 0x33, SONYPI_EVENT_FNKEY_F },
1491         { 0x34, SONYPI_EVENT_FNKEY_S },
1492         { 0x35, SONYPI_EVENT_FNKEY_B },
1493         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1494         { 0, 0 }
1495 };
1496
1497 /* The set of possible program key events */
1498 static struct sonypi_event sonypi_pkeyev[] = {
1499         { 0x01, SONYPI_EVENT_PKEY_P1 },
1500         { 0x02, SONYPI_EVENT_PKEY_P2 },
1501         { 0x04, SONYPI_EVENT_PKEY_P3 },
1502         { 0x20, SONYPI_EVENT_PKEY_P1 },
1503         { 0, 0 }
1504 };
1505
1506 /* The set of possible bluetooth events */
1507 static struct sonypi_event sonypi_blueev[] = {
1508         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1509         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1510         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1511         { 0, 0 }
1512 };
1513
1514 /* The set of possible wireless events */
1515 static struct sonypi_event sonypi_wlessev[] = {
1516         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1517         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1518         { 0, 0 }
1519 };
1520
1521 /* The set of possible back button events */
1522 static struct sonypi_event sonypi_backev[] = {
1523         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1524         { 0, 0 }
1525 };
1526
1527 /* The set of possible help button events */
1528 static struct sonypi_event sonypi_helpev[] = {
1529         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1530         { 0, 0 }
1531 };
1532
1533
1534 /* The set of possible lid events */
1535 static struct sonypi_event sonypi_lidev[] = {
1536         { 0x51, SONYPI_EVENT_LID_CLOSED },
1537         { 0x50, SONYPI_EVENT_LID_OPENED },
1538         { 0, 0 }
1539 };
1540
1541 /* The set of possible zoom events */
1542 static struct sonypi_event sonypi_zoomev[] = {
1543         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1544         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1545         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1546         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1547         { 0, 0 }
1548 };
1549
1550 /* The set of possible thumbphrase events */
1551 static struct sonypi_event sonypi_thumbphraseev[] = {
1552         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1553         { 0, 0 }
1554 };
1555
1556 /* The set of possible motioneye camera events */
1557 static struct sonypi_event sonypi_meyeev[] = {
1558         { 0x00, SONYPI_EVENT_MEYE_FACE },
1559         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1560         { 0, 0 }
1561 };
1562
1563 /* The set of possible memorystick events */
1564 static struct sonypi_event sonypi_memorystickev[] = {
1565         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1566         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1567         { 0, 0 }
1568 };
1569
1570 /* The set of possible battery events */
1571 static struct sonypi_event sonypi_batteryev[] = {
1572         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1573         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1574         { 0, 0 }
1575 };
1576
1577 /* The set of possible volume events */
1578 static struct sonypi_event sonypi_volumeev[] = {
1579         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1580         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1581         { 0, 0 }
1582 };
1583
1584 /* The set of possible brightness events */
1585 static struct sonypi_event sonypi_brightnessev[] = {
1586         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1587         { 0, 0 }
1588 };
1589
1590 static struct sonypi_eventtypes type1_events[] = {
1591         { 0, 0xffffffff, sonypi_releaseev },
1592         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1593         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1594         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1595         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1596         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1597         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1598         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1599         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1600         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1601         { 0 },
1602 };
1603 static struct sonypi_eventtypes type2_events[] = {
1604         { 0, 0xffffffff, sonypi_releaseev },
1605         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1606         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1607         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1608         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1609         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1610         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1611         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1612         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1613         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1614         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1615         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1616         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1617         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1618         { 0 },
1619 };
1620 static struct sonypi_eventtypes type3_events[] = {
1621         { 0, 0xffffffff, sonypi_releaseev },
1622         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1623         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1624         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1625         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1626         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1627         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1628         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1629         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1630         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1631         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1632         { 0 },
1633 };
1634
1635 /* low level spic calls */
1636 #define ITERATIONS_LONG         10000
1637 #define ITERATIONS_SHORT        10
1638 #define wait_on_command(command, iterations) {                          \
1639         unsigned int n = iterations;                                    \
1640         while (--n && (command))                                        \
1641                 udelay(1);                                              \
1642         if (!n)                                                         \
1643                 dprintk("command failed at %s : %s (line %d)\n",        \
1644                                 __FILE__, __func__, __LINE__);  \
1645 }
1646
1647 static u8 sony_pic_call1(u8 dev)
1648 {
1649         u8 v1, v2;
1650
1651         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1652                         ITERATIONS_LONG);
1653         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1654         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1655         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1656         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1657         return v2;
1658 }
1659
1660 static u8 sony_pic_call2(u8 dev, u8 fn)
1661 {
1662         u8 v1;
1663
1664         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1665                         ITERATIONS_LONG);
1666         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1667         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1668                         ITERATIONS_LONG);
1669         outb(fn, spic_dev.cur_ioport->io1.minimum);
1670         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1671         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1672         return v1;
1673 }
1674
1675 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1676 {
1677         u8 v1;
1678
1679         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1680         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1681         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1682         outb(fn, spic_dev.cur_ioport->io1.minimum);
1683         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1684         outb(v, spic_dev.cur_ioport->io1.minimum);
1685         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1686         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1687                         dev, fn, v, v1);
1688         return v1;
1689 }
1690
1691 /*
1692  * minidrivers for SPIC models
1693  */
1694 static int type3_handle_irq(const u8 data_mask, const u8 ev)
1695 {
1696         /*
1697          * 0x31 could mean we have to take some extra action and wait for
1698          * the next irq for some Type3 models, it will generate a new
1699          * irq and we can read new data from the device:
1700          *  - 0x5c and 0x5f requires 0xA0
1701          *  - 0x61 requires 0xB3
1702          */
1703         if (data_mask == 0x31) {
1704                 if (ev == 0x5c || ev == 0x5f)
1705                         sony_pic_call1(0xA0);
1706                 else if (ev == 0x61)
1707                         sony_pic_call1(0xB3);
1708                 return 0;
1709         }
1710         return 1;
1711 }
1712
1713 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1714 {
1715         struct pci_dev *pcidev;
1716
1717         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1718                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1719         if (pcidev) {
1720                 dev->model = SONYPI_DEVICE_TYPE1;
1721                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
1722                 dev->event_types = type1_events;
1723                 goto out;
1724         }
1725
1726         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1727                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1728         if (pcidev) {
1729                 dev->model = SONYPI_DEVICE_TYPE2;
1730                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1731                 dev->event_types = type2_events;
1732                 goto out;
1733         }
1734
1735         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1736                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1737         if (pcidev) {
1738                 dev->model = SONYPI_DEVICE_TYPE3;
1739                 dev->handle_irq = type3_handle_irq;
1740                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1741                 dev->event_types = type3_events;
1742                 goto out;
1743         }
1744
1745         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1746                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1747         if (pcidev) {
1748                 dev->model = SONYPI_DEVICE_TYPE3;
1749                 dev->handle_irq = type3_handle_irq;
1750                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1751                 dev->event_types = type3_events;
1752                 goto out;
1753         }
1754
1755         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1756                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1757         if (pcidev) {
1758                 dev->model = SONYPI_DEVICE_TYPE3;
1759                 dev->handle_irq = type3_handle_irq;
1760                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1761                 dev->event_types = type3_events;
1762                 goto out;
1763         }
1764
1765         /* default */
1766         dev->model = SONYPI_DEVICE_TYPE2;
1767         dev->evport_offset = SONYPI_TYPE2_OFFSET;
1768         dev->event_types = type2_events;
1769
1770 out:
1771         if (pcidev)
1772                 pci_dev_put(pcidev);
1773
1774         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1775                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
1776                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1777 }
1778
1779 /* camera tests and poweron/poweroff */
1780 #define SONYPI_CAMERA_PICTURE           5
1781 #define SONYPI_CAMERA_CONTROL           0x10
1782
1783 #define SONYPI_CAMERA_BRIGHTNESS                0
1784 #define SONYPI_CAMERA_CONTRAST                  1
1785 #define SONYPI_CAMERA_HUE                       2
1786 #define SONYPI_CAMERA_COLOR                     3
1787 #define SONYPI_CAMERA_SHARPNESS                 4
1788
1789 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1790 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1791 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1792 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1793
1794 /* the rest don't need a loop until not 0xff */
1795 #define SONYPI_CAMERA_AGC                       6
1796 #define SONYPI_CAMERA_AGC_MASK                  0x30
1797 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1798
1799 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1800 #define SONYPI_CAMERA_CONTROL                   0x10
1801
1802 #define SONYPI_CAMERA_STATUS                    7
1803 #define SONYPI_CAMERA_STATUS_READY              0x2
1804 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1805
1806 #define SONYPI_DIRECTION_BACKWARDS              0x4
1807
1808 #define SONYPI_CAMERA_REVISION                  8
1809 #define SONYPI_CAMERA_ROMVERSION                9
1810
1811 static int __sony_pic_camera_ready(void)
1812 {
1813         u8 v;
1814
1815         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1816         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1817 }
1818
1819 static int __sony_pic_camera_off(void)
1820 {
1821         if (!camera) {
1822                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1823                 return -ENODEV;
1824         }
1825
1826         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1827                                 SONYPI_CAMERA_MUTE_MASK),
1828                         ITERATIONS_SHORT);
1829
1830         if (spic_dev.camera_power) {
1831                 sony_pic_call2(0x91, 0);
1832                 spic_dev.camera_power = 0;
1833         }
1834         return 0;
1835 }
1836
1837 static int __sony_pic_camera_on(void)
1838 {
1839         int i, j, x;
1840
1841         if (!camera) {
1842                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1843                 return -ENODEV;
1844         }
1845
1846         if (spic_dev.camera_power)
1847                 return 0;
1848
1849         for (j = 5; j > 0; j--) {
1850
1851                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1852                         msleep(10);
1853                 sony_pic_call1(0x93);
1854
1855                 for (i = 400; i > 0; i--) {
1856                         if (__sony_pic_camera_ready())
1857                                 break;
1858                         msleep(10);
1859                 }
1860                 if (i)
1861                         break;
1862         }
1863
1864         if (j == 0) {
1865                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1866                 return -ENODEV;
1867         }
1868
1869         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1870                                 0x5a),
1871                         ITERATIONS_SHORT);
1872
1873         spic_dev.camera_power = 1;
1874         return 0;
1875 }
1876
1877 /* External camera command (exported to the motion eye v4l driver) */
1878 int sony_pic_camera_command(int command, u8 value)
1879 {
1880         if (!camera)
1881                 return -EIO;
1882
1883         mutex_lock(&spic_dev.lock);
1884
1885         switch (command) {
1886         case SONY_PIC_COMMAND_SETCAMERA:
1887                 if (value)
1888                         __sony_pic_camera_on();
1889                 else
1890                         __sony_pic_camera_off();
1891                 break;
1892         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1893                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1894                                 ITERATIONS_SHORT);
1895                 break;
1896         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1897                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1898                                 ITERATIONS_SHORT);
1899                 break;
1900         case SONY_PIC_COMMAND_SETCAMERAHUE:
1901                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1902                                 ITERATIONS_SHORT);
1903                 break;
1904         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1905                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1906                                 ITERATIONS_SHORT);
1907                 break;
1908         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1909                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1910                                 ITERATIONS_SHORT);
1911                 break;
1912         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1913                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1914                                 ITERATIONS_SHORT);
1915                 break;
1916         case SONY_PIC_COMMAND_SETCAMERAAGC:
1917                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1918                                 ITERATIONS_SHORT);
1919                 break;
1920         default:
1921                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1922                        command);
1923                 break;
1924         }
1925         mutex_unlock(&spic_dev.lock);
1926         return 0;
1927 }
1928 EXPORT_SYMBOL(sony_pic_camera_command);
1929
1930 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1931 static void __sony_pic_set_wwanpower(u8 state)
1932 {
1933         state = !!state;
1934         if (spic_dev.wwan_power == state)
1935                 return;
1936         sony_pic_call2(0xB0, state);
1937         sony_pic_call1(0x82);
1938         spic_dev.wwan_power = state;
1939 }
1940
1941 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1942                 struct device_attribute *attr,
1943                 const char *buffer, size_t count)
1944 {
1945         unsigned long value;
1946         if (count > 31)
1947                 return -EINVAL;
1948
1949         value = simple_strtoul(buffer, NULL, 10);
1950         mutex_lock(&spic_dev.lock);
1951         __sony_pic_set_wwanpower(value);
1952         mutex_unlock(&spic_dev.lock);
1953
1954         return count;
1955 }
1956
1957 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1958                 struct device_attribute *attr, char *buffer)
1959 {
1960         ssize_t count;
1961         mutex_lock(&spic_dev.lock);
1962         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1963         mutex_unlock(&spic_dev.lock);
1964         return count;
1965 }
1966
1967 /* bluetooth subsystem power state */
1968 static void __sony_pic_set_bluetoothpower(u8 state)
1969 {
1970         state = !!state;
1971         if (spic_dev.bluetooth_power == state)
1972                 return;
1973         sony_pic_call2(0x96, state);
1974         sony_pic_call1(0x82);
1975         spic_dev.bluetooth_power = state;
1976 }
1977
1978 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1979                 struct device_attribute *attr,
1980                 const char *buffer, size_t count)
1981 {
1982         unsigned long value;
1983         if (count > 31)
1984                 return -EINVAL;
1985
1986         value = simple_strtoul(buffer, NULL, 10);
1987         mutex_lock(&spic_dev.lock);
1988         __sony_pic_set_bluetoothpower(value);
1989         mutex_unlock(&spic_dev.lock);
1990
1991         return count;
1992 }
1993
1994 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1995                 struct device_attribute *attr, char *buffer)
1996 {
1997         ssize_t count = 0;
1998         mutex_lock(&spic_dev.lock);
1999         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2000         mutex_unlock(&spic_dev.lock);
2001         return count;
2002 }
2003
2004 /* fan speed */
2005 /* FAN0 information (reverse engineered from ACPI tables) */
2006 #define SONY_PIC_FAN0_STATUS    0x93
2007 static int sony_pic_set_fanspeed(unsigned long value)
2008 {
2009         return ec_write(SONY_PIC_FAN0_STATUS, value);
2010 }
2011
2012 static int sony_pic_get_fanspeed(u8 *value)
2013 {
2014         return ec_read(SONY_PIC_FAN0_STATUS, value);
2015 }
2016
2017 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2018                 struct device_attribute *attr,
2019                 const char *buffer, size_t count)
2020 {
2021         unsigned long value;
2022         if (count > 31)
2023                 return -EINVAL;
2024
2025         value = simple_strtoul(buffer, NULL, 10);
2026         if (sony_pic_set_fanspeed(value))
2027                 return -EIO;
2028
2029         return count;
2030 }
2031
2032 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2033                 struct device_attribute *attr, char *buffer)
2034 {
2035         u8 value = 0;
2036         if (sony_pic_get_fanspeed(&value))
2037                 return -EIO;
2038
2039         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2040 }
2041
2042 #define SPIC_ATTR(_name, _mode)                                 \
2043 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2044                 _mode, sony_pic_## _name ##_show,               \
2045                 sony_pic_## _name ##_store)
2046
2047 static SPIC_ATTR(bluetoothpower, 0644);
2048 static SPIC_ATTR(wwanpower, 0644);
2049 static SPIC_ATTR(fanspeed, 0644);
2050
2051 static struct attribute *spic_attributes[] = {
2052         &spic_attr_bluetoothpower.attr,
2053         &spic_attr_wwanpower.attr,
2054         &spic_attr_fanspeed.attr,
2055         NULL
2056 };
2057
2058 static struct attribute_group spic_attribute_group = {
2059         .attrs = spic_attributes
2060 };
2061
2062 /******** SONYPI compatibility **********/
2063 #ifdef CONFIG_SONYPI_COMPAT
2064
2065 /* battery / brightness / temperature  addresses */
2066 #define SONYPI_BAT_FLAGS        0x81
2067 #define SONYPI_LCD_LIGHT        0x96
2068 #define SONYPI_BAT1_PCTRM       0xa0
2069 #define SONYPI_BAT1_LEFT        0xa2
2070 #define SONYPI_BAT1_MAXRT       0xa4
2071 #define SONYPI_BAT2_PCTRM       0xa8
2072 #define SONYPI_BAT2_LEFT        0xaa
2073 #define SONYPI_BAT2_MAXRT       0xac
2074 #define SONYPI_BAT1_MAXTK       0xb0
2075 #define SONYPI_BAT1_FULL        0xb2
2076 #define SONYPI_BAT2_MAXTK       0xb8
2077 #define SONYPI_BAT2_FULL        0xba
2078 #define SONYPI_TEMP_STATUS      0xC1
2079
2080 struct sonypi_compat_s {
2081         struct fasync_struct    *fifo_async;
2082         struct kfifo            fifo;
2083         spinlock_t              fifo_lock;
2084         wait_queue_head_t       fifo_proc_list;
2085         atomic_t                open_count;
2086 };
2087 static struct sonypi_compat_s sonypi_compat = {
2088         .open_count = ATOMIC_INIT(0),
2089 };
2090
2091 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2092 {
2093         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2094 }
2095
2096 static int sonypi_misc_release(struct inode *inode, struct file *file)
2097 {
2098         atomic_dec(&sonypi_compat.open_count);
2099         return 0;
2100 }
2101
2102 static int sonypi_misc_open(struct inode *inode, struct file *file)
2103 {
2104         /* Flush input queue on first open */
2105         unsigned long flags;
2106
2107         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2108
2109         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2110                 __kfifo_reset(&sonypi_compat.fifo);
2111
2112         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2113
2114         return 0;
2115 }
2116
2117 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2118                                 size_t count, loff_t *pos)
2119 {
2120         ssize_t ret;
2121         unsigned char c;
2122
2123         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2124             (file->f_flags & O_NONBLOCK))
2125                 return -EAGAIN;
2126
2127         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2128                                        kfifo_len(&sonypi_compat.fifo) != 0);
2129         if (ret)
2130                 return ret;
2131
2132         while (ret < count &&
2133                (kfifo_get_locked(&sonypi_compat.fifo, &c, sizeof(c),
2134                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2135                 if (put_user(c, buf++))
2136                         return -EFAULT;
2137                 ret++;
2138         }
2139
2140         if (ret > 0) {
2141                 struct inode *inode = file->f_path.dentry->d_inode;
2142                 inode->i_atime = current_fs_time(inode->i_sb);
2143         }
2144
2145         return ret;
2146 }
2147
2148 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2149 {
2150         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2151         if (kfifo_len(&sonypi_compat.fifo))
2152                 return POLLIN | POLLRDNORM;
2153         return 0;
2154 }
2155
2156 static int ec_read16(u8 addr, u16 *value)
2157 {
2158         u8 val_lb, val_hb;
2159         if (ec_read(addr, &val_lb))
2160                 return -1;
2161         if (ec_read(addr + 1, &val_hb))
2162                 return -1;
2163         *value = val_lb | (val_hb << 8);
2164         return 0;
2165 }
2166
2167 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2168                                                         unsigned long arg)
2169 {
2170         int ret = 0;
2171         void __user *argp = (void __user *)arg;
2172         u8 val8;
2173         u16 val16;
2174         int value;
2175
2176         mutex_lock(&spic_dev.lock);
2177         switch (cmd) {
2178         case SONYPI_IOCGBRT:
2179                 if (sony_backlight_device == NULL) {
2180                         ret = -EIO;
2181                         break;
2182                 }
2183                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2184                         ret = -EIO;
2185                         break;
2186                 }
2187                 val8 = ((value & 0xff) - 1) << 5;
2188                 if (copy_to_user(argp, &val8, sizeof(val8)))
2189                                 ret = -EFAULT;
2190                 break;
2191         case SONYPI_IOCSBRT:
2192                 if (sony_backlight_device == NULL) {
2193                         ret = -EIO;
2194                         break;
2195                 }
2196                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2197                         ret = -EFAULT;
2198                         break;
2199                 }
2200                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2201                                 (val8 >> 5) + 1, NULL)) {
2202                         ret = -EIO;
2203                         break;
2204                 }
2205                 /* sync the backlight device status */
2206                 sony_backlight_device->props.brightness =
2207                     sony_backlight_get_brightness(sony_backlight_device);
2208                 break;
2209         case SONYPI_IOCGBAT1CAP:
2210                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2211                         ret = -EIO;
2212                         break;
2213                 }
2214                 if (copy_to_user(argp, &val16, sizeof(val16)))
2215                         ret = -EFAULT;
2216                 break;
2217         case SONYPI_IOCGBAT1REM:
2218                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2219                         ret = -EIO;
2220                         break;
2221                 }
2222                 if (copy_to_user(argp, &val16, sizeof(val16)))
2223                         ret = -EFAULT;
2224                 break;
2225         case SONYPI_IOCGBAT2CAP:
2226                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2227                         ret = -EIO;
2228                         break;
2229                 }
2230                 if (copy_to_user(argp, &val16, sizeof(val16)))
2231                         ret = -EFAULT;
2232                 break;
2233         case SONYPI_IOCGBAT2REM:
2234                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2235                         ret = -EIO;
2236                         break;
2237                 }
2238                 if (copy_to_user(argp, &val16, sizeof(val16)))
2239                         ret = -EFAULT;
2240                 break;
2241         case SONYPI_IOCGBATFLAGS:
2242                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2243                         ret = -EIO;
2244                         break;
2245                 }
2246                 val8 &= 0x07;
2247                 if (copy_to_user(argp, &val8, sizeof(val8)))
2248                         ret = -EFAULT;
2249                 break;
2250         case SONYPI_IOCGBLUE:
2251                 val8 = spic_dev.bluetooth_power;
2252                 if (copy_to_user(argp, &val8, sizeof(val8)))
2253                         ret = -EFAULT;
2254                 break;
2255         case SONYPI_IOCSBLUE:
2256                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2257                         ret = -EFAULT;
2258                         break;
2259                 }
2260                 __sony_pic_set_bluetoothpower(val8);
2261                 break;
2262         /* FAN Controls */
2263         case SONYPI_IOCGFAN:
2264                 if (sony_pic_get_fanspeed(&val8)) {
2265                         ret = -EIO;
2266                         break;
2267                 }
2268                 if (copy_to_user(argp, &val8, sizeof(val8)))
2269                         ret = -EFAULT;
2270                 break;
2271         case SONYPI_IOCSFAN:
2272                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2273                         ret = -EFAULT;
2274                         break;
2275                 }
2276                 if (sony_pic_set_fanspeed(val8))
2277                         ret = -EIO;
2278                 break;
2279         /* GET Temperature (useful under APM) */
2280         case SONYPI_IOCGTEMP:
2281                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2282                         ret = -EIO;
2283                         break;
2284                 }
2285                 if (copy_to_user(argp, &val8, sizeof(val8)))
2286                         ret = -EFAULT;
2287                 break;
2288         default:
2289                 ret = -EINVAL;
2290         }
2291         mutex_unlock(&spic_dev.lock);
2292         return ret;
2293 }
2294
2295 static const struct file_operations sonypi_misc_fops = {
2296         .owner          = THIS_MODULE,
2297         .read           = sonypi_misc_read,
2298         .poll           = sonypi_misc_poll,
2299         .open           = sonypi_misc_open,
2300         .release        = sonypi_misc_release,
2301         .fasync         = sonypi_misc_fasync,
2302         .unlocked_ioctl = sonypi_misc_ioctl,
2303 };
2304
2305 static struct miscdevice sonypi_misc_device = {
2306         .minor          = MISC_DYNAMIC_MINOR,
2307         .name           = "sonypi",
2308         .fops           = &sonypi_misc_fops,
2309 };
2310
2311 static void sonypi_compat_report_event(u8 event)
2312 {
2313         kfifo_put_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2314                         sizeof(event), &sonypi_compat.fifo_lock);
2315         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2316         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2317 }
2318
2319 static int sonypi_compat_init(void)
2320 {
2321         int error;
2322
2323         spin_lock_init(&sonypi_compat.fifo_lock);
2324         error =
2325          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2326         if (error) {
2327                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2328                 return error;
2329         }
2330
2331         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2332
2333         if (minor != -1)
2334                 sonypi_misc_device.minor = minor;
2335         error = misc_register(&sonypi_misc_device);
2336         if (error) {
2337                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2338                 goto err_free_kfifo;
2339         }
2340         if (minor == -1)
2341                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2342                        sonypi_misc_device.minor);
2343
2344         return 0;
2345
2346 err_free_kfifo:
2347         kfifo_free(&sonypi_compat.fifo);
2348         return error;
2349 }
2350
2351 static void sonypi_compat_exit(void)
2352 {
2353         misc_deregister(&sonypi_misc_device);
2354         kfifo_free(&sonypi_compat.fifo);
2355 }
2356 #else
2357 static int sonypi_compat_init(void) { return 0; }
2358 static void sonypi_compat_exit(void) { }
2359 static void sonypi_compat_report_event(u8 event) { }
2360 #endif /* CONFIG_SONYPI_COMPAT */
2361
2362 /*
2363  * ACPI callbacks
2364  */
2365 static acpi_status
2366 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2367 {
2368         u32 i;
2369         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2370
2371         switch (resource->type) {
2372         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2373                 {
2374                         /* start IO enumeration */
2375                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2376                         if (!ioport)
2377                                 return AE_ERROR;
2378
2379                         list_add(&ioport->list, &dev->ioports);
2380                         return AE_OK;
2381                 }
2382
2383         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2384                 /* end IO enumeration */
2385                 return AE_OK;
2386
2387         case ACPI_RESOURCE_TYPE_IRQ:
2388                 {
2389                         struct acpi_resource_irq *p = &resource->data.irq;
2390                         struct sony_pic_irq *interrupt = NULL;
2391                         if (!p || !p->interrupt_count) {
2392                                 /*
2393                                  * IRQ descriptors may have no IRQ# bits set,
2394                                  * particularly those those w/ _STA disabled
2395                                  */
2396                                 dprintk("Blank IRQ resource\n");
2397                                 return AE_OK;
2398                         }
2399                         for (i = 0; i < p->interrupt_count; i++) {
2400                                 if (!p->interrupts[i]) {
2401                                         printk(KERN_WARNING DRV_PFX
2402                                                         "Invalid IRQ %d\n",
2403                                                         p->interrupts[i]);
2404                                         continue;
2405                                 }
2406                                 interrupt = kzalloc(sizeof(*interrupt),
2407                                                 GFP_KERNEL);
2408                                 if (!interrupt)
2409                                         return AE_ERROR;
2410
2411                                 list_add(&interrupt->list, &dev->interrupts);
2412                                 interrupt->irq.triggering = p->triggering;
2413                                 interrupt->irq.polarity = p->polarity;
2414                                 interrupt->irq.sharable = p->sharable;
2415                                 interrupt->irq.interrupt_count = 1;
2416                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2417                         }
2418                         return AE_OK;
2419                 }
2420         case ACPI_RESOURCE_TYPE_IO:
2421                 {
2422                         struct acpi_resource_io *io = &resource->data.io;
2423                         struct sony_pic_ioport *ioport =
2424                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2425                         if (!io) {
2426                                 dprintk("Blank IO resource\n");
2427                                 return AE_OK;
2428                         }
2429
2430                         if (!ioport->io1.minimum) {
2431                                 memcpy(&ioport->io1, io, sizeof(*io));
2432                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2433                                                 ioport->io1.address_length);
2434                         }
2435                         else if (!ioport->io2.minimum) {
2436                                 memcpy(&ioport->io2, io, sizeof(*io));
2437                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2438                                                 ioport->io2.address_length);
2439                         }
2440                         else {
2441                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2442                                 return AE_ERROR;
2443                         }
2444                         return AE_OK;
2445                 }
2446         default:
2447                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2448                                 resource->type);
2449
2450         case ACPI_RESOURCE_TYPE_END_TAG:
2451                 return AE_OK;
2452         }
2453         return AE_CTRL_TERMINATE;
2454 }
2455
2456 static int sony_pic_possible_resources(struct acpi_device *device)
2457 {
2458         int result = 0;
2459         acpi_status status = AE_OK;
2460
2461         if (!device)
2462                 return -EINVAL;
2463
2464         /* get device status */
2465         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2466         dprintk("Evaluating _STA\n");
2467         result = acpi_bus_get_status(device);
2468         if (result) {
2469                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2470                 goto end;
2471         }
2472
2473         if (!device->status.enabled)
2474                 dprintk("Device disabled\n");
2475         else
2476                 dprintk("Device enabled\n");
2477
2478         /*
2479          * Query and parse 'method'
2480          */
2481         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2482         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2483                         sony_pic_read_possible_resource, &spic_dev);
2484         if (ACPI_FAILURE(status)) {
2485                 printk(KERN_WARNING DRV_PFX
2486                                 "Failure evaluating %s\n",
2487                                 METHOD_NAME__PRS);
2488                 result = -ENODEV;
2489         }
2490 end:
2491         return result;
2492 }
2493
2494 /*
2495  *  Disable the spic device by calling its _DIS method
2496  */
2497 static int sony_pic_disable(struct acpi_device *device)
2498 {
2499         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2500                                                NULL);
2501
2502         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2503                 return -ENXIO;
2504
2505         dprintk("Device disabled\n");
2506         return 0;
2507 }
2508
2509
2510 /*
2511  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2512  *
2513  *  Call _SRS to set current resources
2514  */
2515 static int sony_pic_enable(struct acpi_device *device,
2516                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2517 {
2518         acpi_status status;
2519         int result = 0;
2520         /* Type 1 resource layout is:
2521          *    IO
2522          *    IO
2523          *    IRQNoFlags
2524          *    End
2525          *
2526          * Type 2 and 3 resource layout is:
2527          *    IO
2528          *    IRQNoFlags
2529          *    End
2530          */
2531         struct {
2532                 struct acpi_resource res1;
2533                 struct acpi_resource res2;
2534                 struct acpi_resource res3;
2535                 struct acpi_resource res4;
2536         } *resource;
2537         struct acpi_buffer buffer = { 0, NULL };
2538
2539         if (!ioport || !irq)
2540                 return -EINVAL;
2541
2542         /* init acpi_buffer */
2543         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2544         if (!resource)
2545                 return -ENOMEM;
2546
2547         buffer.length = sizeof(*resource) + 1;
2548         buffer.pointer = resource;
2549
2550         /* setup Type 1 resources */
2551         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2552
2553                 /* setup io resources */
2554                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2555                 resource->res1.length = sizeof(struct acpi_resource);
2556                 memcpy(&resource->res1.data.io, &ioport->io1,
2557                                 sizeof(struct acpi_resource_io));
2558
2559                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2560                 resource->res2.length = sizeof(struct acpi_resource);
2561                 memcpy(&resource->res2.data.io, &ioport->io2,
2562                                 sizeof(struct acpi_resource_io));
2563
2564                 /* setup irq resource */
2565                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2566                 resource->res3.length = sizeof(struct acpi_resource);
2567                 memcpy(&resource->res3.data.irq, &irq->irq,
2568                                 sizeof(struct acpi_resource_irq));
2569                 /* we requested a shared irq */
2570                 resource->res3.data.irq.sharable = ACPI_SHARED;
2571
2572                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2573
2574         }
2575         /* setup Type 2/3 resources */
2576         else {
2577                 /* setup io resource */
2578                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2579                 resource->res1.length = sizeof(struct acpi_resource);
2580                 memcpy(&resource->res1.data.io, &ioport->io1,
2581                                 sizeof(struct acpi_resource_io));
2582
2583                 /* setup irq resource */
2584                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2585                 resource->res2.length = sizeof(struct acpi_resource);
2586                 memcpy(&resource->res2.data.irq, &irq->irq,
2587                                 sizeof(struct acpi_resource_irq));
2588                 /* we requested a shared irq */
2589                 resource->res2.data.irq.sharable = ACPI_SHARED;
2590
2591                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2592         }
2593
2594         /* Attempt to set the resource */
2595         dprintk("Evaluating _SRS\n");
2596         status = acpi_set_current_resources(device->handle, &buffer);
2597
2598         /* check for total failure */
2599         if (ACPI_FAILURE(status)) {
2600                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2601                 result = -ENODEV;
2602                 goto end;
2603         }
2604
2605         /* Necessary device initializations calls (from sonypi) */
2606         sony_pic_call1(0x82);
2607         sony_pic_call2(0x81, 0xff);
2608         sony_pic_call1(compat ? 0x92 : 0x82);
2609
2610 end:
2611         kfree(resource);
2612         return result;
2613 }
2614
2615 /*****************
2616  *
2617  * ISR: some event is available
2618  *
2619  *****************/
2620 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2621 {
2622         int i, j;
2623         u8 ev = 0;
2624         u8 data_mask = 0;
2625         u8 device_event = 0;
2626
2627         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2628
2629         ev = inb_p(dev->cur_ioport->io1.minimum);
2630         if (dev->cur_ioport->io2.minimum)
2631                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2632         else
2633                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2634                                 dev->evport_offset);
2635
2636         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2637                         ev, data_mask, dev->cur_ioport->io1.minimum,
2638                         dev->evport_offset);
2639
2640         if (ev == 0x00 || ev == 0xff)
2641                 return IRQ_HANDLED;
2642
2643         for (i = 0; dev->event_types[i].mask; i++) {
2644
2645                 if ((data_mask & dev->event_types[i].data) !=
2646                     dev->event_types[i].data)
2647                         continue;
2648
2649                 if (!(mask & dev->event_types[i].mask))
2650                         continue;
2651
2652                 for (j = 0; dev->event_types[i].events[j].event; j++) {
2653                         if (ev == dev->event_types[i].events[j].data) {
2654                                 device_event =
2655                                         dev->event_types[i].events[j].event;
2656                                 goto found;
2657                         }
2658                 }
2659         }
2660         /* Still not able to decode the event try to pass
2661          * it over to the minidriver
2662          */
2663         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
2664                 return IRQ_HANDLED;
2665
2666         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2667                         ev, data_mask, dev->cur_ioport->io1.minimum,
2668                         dev->evport_offset);
2669         return IRQ_HANDLED;
2670
2671 found:
2672         sony_laptop_report_input_event(device_event);
2673         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2674         sonypi_compat_report_event(device_event);
2675
2676         return IRQ_HANDLED;
2677 }
2678
2679 /*****************
2680  *
2681  *  ACPI driver
2682  *
2683  *****************/
2684 static int sony_pic_remove(struct acpi_device *device, int type)
2685 {
2686         struct sony_pic_ioport *io, *tmp_io;
2687         struct sony_pic_irq *irq, *tmp_irq;
2688
2689         if (sony_pic_disable(device)) {
2690                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2691                 return -ENXIO;
2692         }
2693
2694         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2695         release_region(spic_dev.cur_ioport->io1.minimum,
2696                         spic_dev.cur_ioport->io1.address_length);
2697         if (spic_dev.cur_ioport->io2.minimum)
2698                 release_region(spic_dev.cur_ioport->io2.minimum,
2699                                 spic_dev.cur_ioport->io2.address_length);
2700
2701         sonypi_compat_exit();
2702
2703         sony_laptop_remove_input();
2704
2705         /* pf attrs */
2706         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2707         sony_pf_remove();
2708
2709         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2710                 list_del(&io->list);
2711                 kfree(io);
2712         }
2713         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2714                 list_del(&irq->list);
2715                 kfree(irq);
2716         }
2717         spic_dev.cur_ioport = NULL;
2718         spic_dev.cur_irq = NULL;
2719
2720         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2721         return 0;
2722 }
2723
2724 static int sony_pic_add(struct acpi_device *device)
2725 {
2726         int result;
2727         struct sony_pic_ioport *io, *tmp_io;
2728         struct sony_pic_irq *irq, *tmp_irq;
2729
2730         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2731                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2732
2733         spic_dev.acpi_dev = device;
2734         strcpy(acpi_device_class(device), "sony/hotkey");
2735         sony_pic_detect_device_type(&spic_dev);
2736         mutex_init(&spic_dev.lock);
2737
2738         /* read _PRS resources */
2739         result = sony_pic_possible_resources(device);
2740         if (result) {
2741                 printk(KERN_ERR DRV_PFX
2742                                 "Unable to read possible resources.\n");
2743                 goto err_free_resources;
2744         }
2745
2746         /* setup input devices and helper fifo */
2747         result = sony_laptop_setup_input(device);
2748         if (result) {
2749                 printk(KERN_ERR DRV_PFX
2750                                 "Unable to create input devices.\n");
2751                 goto err_free_resources;
2752         }
2753
2754         if (sonypi_compat_init())
2755                 goto err_remove_input;
2756
2757         /* request io port */
2758         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2759                 if (request_region(io->io1.minimum, io->io1.address_length,
2760                                         "Sony Programable I/O Device")) {
2761                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2762                                         io->io1.minimum, io->io1.maximum,
2763                                         io->io1.address_length);
2764                         /* Type 1 have 2 ioports */
2765                         if (io->io2.minimum) {
2766                                 if (request_region(io->io2.minimum,
2767                                                 io->io2.address_length,
2768                                                 "Sony Programable I/O Device")) {
2769                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2770                                                         io->io2.minimum, io->io2.maximum,
2771                                                         io->io2.address_length);
2772                                         spic_dev.cur_ioport = io;
2773                                         break;
2774                                 }
2775                                 else {
2776                                         dprintk("Unable to get I/O port2: "
2777                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2778                                                         io->io2.minimum, io->io2.maximum,
2779                                                         io->io2.address_length);
2780                                         release_region(io->io1.minimum,
2781                                                         io->io1.address_length);
2782                                 }
2783                         }
2784                         else {
2785                                 spic_dev.cur_ioport = io;
2786                                 break;
2787                         }
2788                 }
2789         }
2790         if (!spic_dev.cur_ioport) {
2791                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2792                 result = -ENODEV;
2793                 goto err_remove_compat;
2794         }
2795
2796         /* request IRQ */
2797         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2798                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2799                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
2800                         dprintk("IRQ: %d - triggering: %d - "
2801                                         "polarity: %d - shr: %d\n",
2802                                         irq->irq.interrupts[0],
2803                                         irq->irq.triggering,
2804                                         irq->irq.polarity,
2805                                         irq->irq.sharable);
2806                         spic_dev.cur_irq = irq;
2807                         break;
2808                 }
2809         }
2810         if (!spic_dev.cur_irq) {
2811                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2812                 result = -ENODEV;
2813                 goto err_release_region;
2814         }
2815
2816         /* set resource status _SRS */
2817         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2818         if (result) {
2819                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2820                 goto err_free_irq;
2821         }
2822
2823         spic_dev.bluetooth_power = -1;
2824         /* create device attributes */
2825         result = sony_pf_add();
2826         if (result)
2827                 goto err_disable_device;
2828
2829         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2830         if (result)
2831                 goto err_remove_pf;
2832
2833         return 0;
2834
2835 err_remove_pf:
2836         sony_pf_remove();
2837
2838 err_disable_device:
2839         sony_pic_disable(device);
2840
2841 err_free_irq:
2842         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2843
2844 err_release_region:
2845         release_region(spic_dev.cur_ioport->io1.minimum,
2846                         spic_dev.cur_ioport->io1.address_length);
2847         if (spic_dev.cur_ioport->io2.minimum)
2848                 release_region(spic_dev.cur_ioport->io2.minimum,
2849                                 spic_dev.cur_ioport->io2.address_length);
2850
2851 err_remove_compat:
2852         sonypi_compat_exit();
2853
2854 err_remove_input:
2855         sony_laptop_remove_input();
2856
2857 err_free_resources:
2858         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2859                 list_del(&io->list);
2860                 kfree(io);
2861         }
2862         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2863                 list_del(&irq->list);
2864                 kfree(irq);
2865         }
2866         spic_dev.cur_ioport = NULL;
2867         spic_dev.cur_irq = NULL;
2868
2869         return result;
2870 }
2871
2872 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2873 {
2874         if (sony_pic_disable(device))
2875                 return -ENXIO;
2876         return 0;
2877 }
2878
2879 static int sony_pic_resume(struct acpi_device *device)
2880 {
2881         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2882         return 0;
2883 }
2884
2885 static const struct acpi_device_id sony_pic_device_ids[] = {
2886         {SONY_PIC_HID, 0},
2887         {"", 0},
2888 };
2889
2890 static struct acpi_driver sony_pic_driver = {
2891         .name = SONY_PIC_DRIVER_NAME,
2892         .class = SONY_PIC_CLASS,
2893         .ids = sony_pic_device_ids,
2894         .owner = THIS_MODULE,
2895         .ops = {
2896                 .add = sony_pic_add,
2897                 .remove = sony_pic_remove,
2898                 .suspend = sony_pic_suspend,
2899                 .resume = sony_pic_resume,
2900                 },
2901 };
2902
2903 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2904         {
2905                 .ident = "Sony Vaio",
2906                 .matches = {
2907                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2908                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2909                 },
2910         },
2911         {
2912                 .ident = "Sony Vaio",
2913                 .matches = {
2914                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2915                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2916                 },
2917         },
2918         { }
2919 };
2920
2921 static int __init sony_laptop_init(void)
2922 {
2923         int result;
2924
2925         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2926                 result = acpi_bus_register_driver(&sony_pic_driver);
2927                 if (result) {
2928                         printk(KERN_ERR DRV_PFX
2929                                         "Unable to register SPIC driver.");
2930                         goto out;
2931                 }
2932                 spic_drv_registered = 1;
2933         }
2934
2935         result = acpi_bus_register_driver(&sony_nc_driver);
2936         if (result) {
2937                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2938                 goto out_unregister_pic;
2939         }
2940
2941         return 0;
2942
2943 out_unregister_pic:
2944         if (spic_drv_registered)
2945                 acpi_bus_unregister_driver(&sony_pic_driver);
2946 out:
2947         return result;
2948 }
2949
2950 static void __exit sony_laptop_exit(void)
2951 {
2952         acpi_bus_unregister_driver(&sony_nc_driver);
2953         if (spic_drv_registered)
2954                 acpi_bus_unregister_driver(&sony_pic_driver);
2955 }
2956
2957 module_init(sony_laptop_init);
2958 module_exit(sony_laptop_exit);