04625a048e74059ad50c8b5e36e8f0efc82c52fa
[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(&sony_laptop_input.fifo, (unsigned char *)&kp,
304                          sizeof(kp)) == sizeof(kp)) {
305                 msleep(10);
306                 input_report_key(kp.dev, kp.key, 0);
307                 input_sync(kp.dev);
308         }
309 }
310 static DECLARE_WORK(sony_laptop_release_key_work,
311                 do_sony_laptop_release_key);
312
313 /* forward event to the input subsystem */
314 static void sony_laptop_report_input_event(u8 event)
315 {
316         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
317         struct input_dev *key_dev = sony_laptop_input.key_dev;
318         struct sony_laptop_keypress kp = { NULL };
319
320         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
321                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
322                 /* Nothing, not all VAIOs generate this event */
323                 return;
324         }
325
326         /* report events */
327         switch (event) {
328         /* jog_dev events */
329         case SONYPI_EVENT_JOGDIAL_UP:
330         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
331                 input_report_rel(jog_dev, REL_WHEEL, 1);
332                 input_sync(jog_dev);
333                 return;
334
335         case SONYPI_EVENT_JOGDIAL_DOWN:
336         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
337                 input_report_rel(jog_dev, REL_WHEEL, -1);
338                 input_sync(jog_dev);
339                 return;
340
341         /* key_dev events */
342         case SONYPI_EVENT_JOGDIAL_PRESSED:
343                 kp.key = BTN_MIDDLE;
344                 kp.dev = jog_dev;
345                 break;
346
347         default:
348                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
349                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
350                         break;
351                 }
352                 if (sony_laptop_input_index[event] != -1) {
353                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
354                         if (kp.key != KEY_UNKNOWN)
355                                 kp.dev = key_dev;
356                 }
357                 break;
358         }
359
360         if (kp.dev) {
361                 input_report_key(kp.dev, kp.key, 1);
362                 /* we emit the scancode so we can always remap the key */
363                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
364                 input_sync(kp.dev);
365                 kfifo_put(&sony_laptop_input.fifo,
366                           (unsigned char *)&kp, sizeof(kp));
367
368                 if (!work_pending(&sony_laptop_release_key_work))
369                         queue_work(sony_laptop_input.wq,
370                                         &sony_laptop_release_key_work);
371         } else
372                 dprintk("unknown input event %.2x\n", event);
373 }
374
375 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
376 {
377         struct input_dev *jog_dev;
378         struct input_dev *key_dev;
379         int i;
380         int error;
381
382         /* don't run again if already initialized */
383         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
384                 return 0;
385
386         /* kfifo */
387         spin_lock_init(&sony_laptop_input.fifo_lock);
388         error =
389          kfifo_alloc(&sony_laptop_input.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
390                             &sony_laptop_input.fifo_lock);
391         if (error) {
392                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
393                 goto err_dec_users;
394         }
395
396         /* init workqueue */
397         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
398         if (!sony_laptop_input.wq) {
399                 printk(KERN_ERR DRV_PFX
400                                 "Unable to create workqueue.\n");
401                 error = -ENXIO;
402                 goto err_free_kfifo;
403         }
404
405         /* input keys */
406         key_dev = input_allocate_device();
407         if (!key_dev) {
408                 error = -ENOMEM;
409                 goto err_destroy_wq;
410         }
411
412         key_dev->name = "Sony Vaio Keys";
413         key_dev->id.bustype = BUS_ISA;
414         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
415         key_dev->dev.parent = &acpi_device->dev;
416
417         /* Initialize the Input Drivers: special keys */
418         set_bit(EV_KEY, key_dev->evbit);
419         set_bit(EV_MSC, key_dev->evbit);
420         set_bit(MSC_SCAN, key_dev->mscbit);
421         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
422         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
423         key_dev->keycode = &sony_laptop_input_keycode_map;
424         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
425                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
426                         set_bit(sony_laptop_input_keycode_map[i],
427                                 key_dev->keybit);
428                 }
429         }
430
431         error = input_register_device(key_dev);
432         if (error)
433                 goto err_free_keydev;
434
435         sony_laptop_input.key_dev = key_dev;
436
437         /* jogdial */
438         jog_dev = input_allocate_device();
439         if (!jog_dev) {
440                 error = -ENOMEM;
441                 goto err_unregister_keydev;
442         }
443
444         jog_dev->name = "Sony Vaio Jogdial";
445         jog_dev->id.bustype = BUS_ISA;
446         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
447         key_dev->dev.parent = &acpi_device->dev;
448
449         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
450         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
451         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
452
453         error = input_register_device(jog_dev);
454         if (error)
455                 goto err_free_jogdev;
456
457         sony_laptop_input.jog_dev = jog_dev;
458
459         return 0;
460
461 err_free_jogdev:
462         input_free_device(jog_dev);
463
464 err_unregister_keydev:
465         input_unregister_device(key_dev);
466         /* to avoid kref underflow below at input_free_device */
467         key_dev = NULL;
468
469 err_free_keydev:
470         input_free_device(key_dev);
471
472 err_destroy_wq:
473         destroy_workqueue(sony_laptop_input.wq);
474
475 err_free_kfifo:
476         kfifo_free(&sony_laptop_input.fifo);
477
478 err_dec_users:
479         atomic_dec(&sony_laptop_input.users);
480         return error;
481 }
482
483 static void sony_laptop_remove_input(void)
484 {
485         /* cleanup only after the last user has gone */
486         if (!atomic_dec_and_test(&sony_laptop_input.users))
487                 return;
488
489         /* flush workqueue first */
490         flush_workqueue(sony_laptop_input.wq);
491
492         /* destroy input devs */
493         input_unregister_device(sony_laptop_input.key_dev);
494         sony_laptop_input.key_dev = NULL;
495
496         if (sony_laptop_input.jog_dev) {
497                 input_unregister_device(sony_laptop_input.jog_dev);
498                 sony_laptop_input.jog_dev = NULL;
499         }
500
501         destroy_workqueue(sony_laptop_input.wq);
502         kfifo_free(&sony_laptop_input.fifo);
503 }
504
505 /*********** Platform Device ***********/
506
507 static atomic_t sony_pf_users = ATOMIC_INIT(0);
508 static struct platform_driver sony_pf_driver = {
509         .driver = {
510                    .name = "sony-laptop",
511                    .owner = THIS_MODULE,
512                    }
513 };
514 static struct platform_device *sony_pf_device;
515
516 static int sony_pf_add(void)
517 {
518         int ret = 0;
519
520         /* don't run again if already initialized */
521         if (atomic_add_return(1, &sony_pf_users) > 1)
522                 return 0;
523
524         ret = platform_driver_register(&sony_pf_driver);
525         if (ret)
526                 goto out;
527
528         sony_pf_device = platform_device_alloc("sony-laptop", -1);
529         if (!sony_pf_device) {
530                 ret = -ENOMEM;
531                 goto out_platform_registered;
532         }
533
534         ret = platform_device_add(sony_pf_device);
535         if (ret)
536                 goto out_platform_alloced;
537
538         return 0;
539
540       out_platform_alloced:
541         platform_device_put(sony_pf_device);
542         sony_pf_device = NULL;
543       out_platform_registered:
544         platform_driver_unregister(&sony_pf_driver);
545       out:
546         atomic_dec(&sony_pf_users);
547         return ret;
548 }
549
550 static void sony_pf_remove(void)
551 {
552         /* deregister only after the last user has gone */
553         if (!atomic_dec_and_test(&sony_pf_users))
554                 return;
555
556         platform_device_del(sony_pf_device);
557         platform_device_put(sony_pf_device);
558         platform_driver_unregister(&sony_pf_driver);
559 }
560
561 /*********** SNC (SNY5001) Device ***********/
562
563 /* the device uses 1-based values, while the backlight subsystem uses
564    0-based values */
565 #define SONY_MAX_BRIGHTNESS     8
566
567 #define SNC_VALIDATE_IN         0
568 #define SNC_VALIDATE_OUT        1
569
570 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
571                               char *);
572 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
573                                const char *, size_t);
574 static int boolean_validate(const int, const int);
575 static int brightness_default_validate(const int, const int);
576
577 struct sony_nc_value {
578         char *name;             /* name of the entry */
579         char **acpiget;         /* names of the ACPI get function */
580         char **acpiset;         /* names of the ACPI set function */
581         int (*validate)(const int, const int);  /* input/output validation */
582         int value;              /* current setting */
583         int valid;              /* Has ever been set */
584         int debug;              /* active only in debug mode ? */
585         struct device_attribute devattr;        /* sysfs atribute */
586 };
587
588 #define SNC_HANDLE_NAMES(_name, _values...) \
589         static char *snc_##_name[] = { _values, NULL }
590
591 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
592         { \
593                 .name           = __stringify(_name), \
594                 .acpiget        = _getters, \
595                 .acpiset        = _setters, \
596                 .validate       = _validate, \
597                 .debug          = _debug, \
598                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
599         }
600
601 #define SNC_HANDLE_NULL { .name = NULL }
602
603 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
604
605 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
606 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
607
608 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
609 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
610
611 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
612 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
613
614 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
615 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
616
617 SNC_HANDLE_NAMES(lidstate_get, "GLID");
618
619 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
620 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
621
622 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
623 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
624
625 SNC_HANDLE_NAMES(PID_get, "GPID");
626
627 SNC_HANDLE_NAMES(CTR_get, "GCTR");
628 SNC_HANDLE_NAMES(CTR_set, "SCTR");
629
630 SNC_HANDLE_NAMES(PCR_get, "GPCR");
631 SNC_HANDLE_NAMES(PCR_set, "SPCR");
632
633 SNC_HANDLE_NAMES(CMI_get, "GCMI");
634 SNC_HANDLE_NAMES(CMI_set, "SCMI");
635
636 static struct sony_nc_value sony_nc_values[] = {
637         SNC_HANDLE(brightness_default, snc_brightness_def_get,
638                         snc_brightness_def_set, brightness_default_validate, 0),
639         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
640         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
641         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
642                         boolean_validate, 0),
643         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
644                         boolean_validate, 1),
645         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
646                         boolean_validate, 0),
647         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
648                         boolean_validate, 0),
649         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
650                         boolean_validate, 0),
651         /* unknown methods */
652         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
653         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
654         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
655         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
656         SNC_HANDLE_NULL
657 };
658
659 static acpi_handle sony_nc_acpi_handle;
660 static struct acpi_device *sony_nc_acpi_device = NULL;
661
662 /*
663  * acpi_evaluate_object wrappers
664  */
665 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
666 {
667         struct acpi_buffer output;
668         union acpi_object out_obj;
669         acpi_status status;
670
671         output.length = sizeof(out_obj);
672         output.pointer = &out_obj;
673
674         status = acpi_evaluate_object(handle, name, NULL, &output);
675         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
676                 *result = out_obj.integer.value;
677                 return 0;
678         }
679
680         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
681
682         return -1;
683 }
684
685 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
686                             int *result)
687 {
688         struct acpi_object_list params;
689         union acpi_object in_obj;
690         struct acpi_buffer output;
691         union acpi_object out_obj;
692         acpi_status status;
693
694         params.count = 1;
695         params.pointer = &in_obj;
696         in_obj.type = ACPI_TYPE_INTEGER;
697         in_obj.integer.value = value;
698
699         output.length = sizeof(out_obj);
700         output.pointer = &out_obj;
701
702         status = acpi_evaluate_object(handle, name, &params, &output);
703         if (status == AE_OK) {
704                 if (result != NULL) {
705                         if (out_obj.type != ACPI_TYPE_INTEGER) {
706                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
707                                        "return type\n");
708                                 return -1;
709                         }
710                         *result = out_obj.integer.value;
711                 }
712                 return 0;
713         }
714
715         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
716
717         return -1;
718 }
719
720 static int sony_find_snc_handle(int handle)
721 {
722         int i;
723         int result;
724
725         for (i = 0x20; i < 0x30; i++) {
726                 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
727                 if (result == handle)
728                         return i-0x20;
729         }
730
731         return -1;
732 }
733
734 static int sony_call_snc_handle(int handle, int argument, int *result)
735 {
736         int offset = sony_find_snc_handle(handle);
737
738         if (offset < 0)
739                 return -1;
740
741         return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
742                                 result);
743 }
744
745 /*
746  * sony_nc_values input/output validate functions
747  */
748
749 /* brightness_default_validate:
750  *
751  * manipulate input output values to keep consistency with the
752  * backlight framework for which brightness values are 0-based.
753  */
754 static int brightness_default_validate(const int direction, const int value)
755 {
756         switch (direction) {
757                 case SNC_VALIDATE_OUT:
758                         return value - 1;
759                 case SNC_VALIDATE_IN:
760                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
761                                 return value + 1;
762         }
763         return -EINVAL;
764 }
765
766 /* boolean_validate:
767  *
768  * on input validate boolean values 0/1, on output just pass the
769  * received value.
770  */
771 static int boolean_validate(const int direction, const int value)
772 {
773         if (direction == SNC_VALIDATE_IN) {
774                 if (value != 0 && value != 1)
775                         return -EINVAL;
776         }
777         return value;
778 }
779
780 /*
781  * Sysfs show/store common to all sony_nc_values
782  */
783 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
784                               char *buffer)
785 {
786         int value;
787         struct sony_nc_value *item =
788             container_of(attr, struct sony_nc_value, devattr);
789
790         if (!*item->acpiget)
791                 return -EIO;
792
793         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
794                 return -EIO;
795
796         if (item->validate)
797                 value = item->validate(SNC_VALIDATE_OUT, value);
798
799         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
800 }
801
802 static ssize_t sony_nc_sysfs_store(struct device *dev,
803                                struct device_attribute *attr,
804                                const char *buffer, size_t count)
805 {
806         int value;
807         struct sony_nc_value *item =
808             container_of(attr, struct sony_nc_value, devattr);
809
810         if (!item->acpiset)
811                 return -EIO;
812
813         if (count > 31)
814                 return -EINVAL;
815
816         value = simple_strtoul(buffer, NULL, 10);
817
818         if (item->validate)
819                 value = item->validate(SNC_VALIDATE_IN, value);
820
821         if (value < 0)
822                 return value;
823
824         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
825                 return -EIO;
826         item->value = value;
827         item->valid = 1;
828         return count;
829 }
830
831
832 /*
833  * Backlight device
834  */
835 static int sony_backlight_update_status(struct backlight_device *bd)
836 {
837         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
838                                 bd->props.brightness + 1, NULL);
839 }
840
841 static int sony_backlight_get_brightness(struct backlight_device *bd)
842 {
843         int value;
844
845         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
846                 return 0;
847         /* brightness levels are 1-based, while backlight ones are 0-based */
848         return value - 1;
849 }
850
851 static struct backlight_device *sony_backlight_device;
852 static struct backlight_ops sony_backlight_ops = {
853         .update_status = sony_backlight_update_status,
854         .get_brightness = sony_backlight_get_brightness,
855 };
856
857 /*
858  * New SNC-only Vaios event mapping to driver known keys
859  */
860 struct sony_nc_event {
861         u8      data;
862         u8      event;
863 };
864
865 static struct sony_nc_event sony_100_events[] = {
866         { 0x90, SONYPI_EVENT_PKEY_P1 },
867         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
868         { 0x91, SONYPI_EVENT_PKEY_P2 },
869         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
870         { 0x81, SONYPI_EVENT_FNKEY_F1 },
871         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
872         { 0x82, SONYPI_EVENT_FNKEY_F2 },
873         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
874         { 0x83, SONYPI_EVENT_FNKEY_F3 },
875         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
876         { 0x84, SONYPI_EVENT_FNKEY_F4 },
877         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
878         { 0x85, SONYPI_EVENT_FNKEY_F5 },
879         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
880         { 0x86, SONYPI_EVENT_FNKEY_F6 },
881         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
882         { 0x87, SONYPI_EVENT_FNKEY_F7 },
883         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
884         { 0x89, SONYPI_EVENT_FNKEY_F9 },
885         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
886         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
887         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
888         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
889         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
890         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
891         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
892         { 0, 0 },
893 };
894
895 static struct sony_nc_event sony_127_events[] = {
896         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
897         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
898         { 0x82, SONYPI_EVENT_PKEY_P1 },
899         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
900         { 0x83, SONYPI_EVENT_PKEY_P2 },
901         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
902         { 0x84, SONYPI_EVENT_PKEY_P3 },
903         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
904         { 0x85, SONYPI_EVENT_PKEY_P4 },
905         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
906         { 0x86, SONYPI_EVENT_PKEY_P5 },
907         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
908         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
909         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
910         { 0, 0 },
911 };
912
913 /*
914  * ACPI callbacks
915  */
916 static void sony_nc_notify(struct acpi_device *device, u32 event)
917 {
918         u32 ev = event;
919
920         if (ev >= 0x90) {
921                 /* New-style event */
922                 int result;
923                 int key_handle = 0;
924                 ev -= 0x90;
925
926                 if (sony_find_snc_handle(0x100) == ev)
927                         key_handle = 0x100;
928                 if (sony_find_snc_handle(0x127) == ev)
929                         key_handle = 0x127;
930
931                 if (key_handle) {
932                         struct sony_nc_event *key_event;
933
934                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
935                                 dprintk("sony_nc_notify, unable to decode"
936                                         " event 0x%.2x 0x%.2x\n", key_handle,
937                                         ev);
938                                 /* restore the original event */
939                                 ev = event;
940                         } else {
941                                 ev = result & 0xFF;
942
943                                 if (key_handle == 0x100)
944                                         key_event = sony_100_events;
945                                 else
946                                         key_event = sony_127_events;
947
948                                 for (; key_event->data; key_event++) {
949                                         if (key_event->data == ev) {
950                                                 ev = key_event->event;
951                                                 break;
952                                         }
953                                 }
954
955                                 if (!key_event->data)
956                                         printk(KERN_INFO DRV_PFX
957                                                         "Unknown event: 0x%x 0x%x\n",
958                                                         key_handle,
959                                                         ev);
960                                 else
961                                         sony_laptop_report_input_event(ev);
962                         }
963                 } else if (sony_find_snc_handle(0x124) == ev) {
964                         sony_nc_rfkill_update();
965                         return;
966                 }
967         } else
968                 sony_laptop_report_input_event(ev);
969
970         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
971         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
972 }
973
974 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
975                                       void *context, void **return_value)
976 {
977         struct acpi_device_info *info;
978
979         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
980                 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
981                         (char *)&info->name, info->param_count);
982
983                 kfree(info);
984         }
985
986         return AE_OK;
987 }
988
989 /*
990  * ACPI device
991  */
992 static int sony_nc_function_setup(struct acpi_device *device)
993 {
994         int result;
995
996         /* Enable all events */
997         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
998
999         /* Setup hotkeys */
1000         sony_call_snc_handle(0x0100, 0, &result);
1001         sony_call_snc_handle(0x0101, 0, &result);
1002         sony_call_snc_handle(0x0102, 0x100, &result);
1003         sony_call_snc_handle(0x0127, 0, &result);
1004
1005         return 0;
1006 }
1007
1008 static int sony_nc_resume(struct acpi_device *device)
1009 {
1010         struct sony_nc_value *item;
1011         acpi_handle handle;
1012
1013         for (item = sony_nc_values; item->name; item++) {
1014                 int ret;
1015
1016                 if (!item->valid)
1017                         continue;
1018                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1019                                        item->value, NULL);
1020                 if (ret < 0) {
1021                         printk("%s: %d\n", __func__, ret);
1022                         break;
1023                 }
1024         }
1025
1026         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1027                                          &handle))) {
1028                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1029                         dprintk("ECON Method failed\n");
1030         }
1031
1032         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1033                                          &handle))) {
1034                 dprintk("Doing SNC setup\n");
1035                 sony_nc_function_setup(device);
1036         }
1037
1038         /* set the last requested brightness level */
1039         if (sony_backlight_device &&
1040                         sony_backlight_update_status(sony_backlight_device) < 0)
1041                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1042
1043         /* re-read rfkill state */
1044         sony_nc_rfkill_update();
1045
1046         return 0;
1047 }
1048
1049 static void sony_nc_rfkill_cleanup(void)
1050 {
1051         int i;
1052
1053         for (i = 0; i < N_SONY_RFKILL; i++) {
1054                 if (sony_rfkill_devices[i]) {
1055                         rfkill_unregister(sony_rfkill_devices[i]);
1056                         rfkill_destroy(sony_rfkill_devices[i]);
1057                 }
1058         }
1059 }
1060
1061 static int sony_nc_rfkill_set(void *data, bool blocked)
1062 {
1063         int result;
1064         int argument = sony_rfkill_address[(long) data] + 0x100;
1065
1066         if (!blocked)
1067                 argument |= 0xff0000;
1068
1069         return sony_call_snc_handle(0x124, argument, &result);
1070 }
1071
1072 static const struct rfkill_ops sony_rfkill_ops = {
1073         .set_block = sony_nc_rfkill_set,
1074 };
1075
1076 static int sony_nc_setup_rfkill(struct acpi_device *device,
1077                                 enum sony_nc_rfkill nc_type)
1078 {
1079         int err = 0;
1080         struct rfkill *rfk;
1081         enum rfkill_type type;
1082         const char *name;
1083         int result;
1084         bool hwblock;
1085
1086         switch (nc_type) {
1087         case SONY_WIFI:
1088                 type = RFKILL_TYPE_WLAN;
1089                 name = "sony-wifi";
1090                 break;
1091         case SONY_BLUETOOTH:
1092                 type = RFKILL_TYPE_BLUETOOTH;
1093                 name = "sony-bluetooth";
1094                 break;
1095         case SONY_WWAN:
1096                 type = RFKILL_TYPE_WWAN;
1097                 name = "sony-wwan";
1098                 break;
1099         case SONY_WIMAX:
1100                 type = RFKILL_TYPE_WIMAX;
1101                 name = "sony-wimax";
1102                 break;
1103         default:
1104                 return -EINVAL;
1105         }
1106
1107         rfk = rfkill_alloc(name, &device->dev, type,
1108                            &sony_rfkill_ops, (void *)nc_type);
1109         if (!rfk)
1110                 return -ENOMEM;
1111
1112         sony_call_snc_handle(0x124, 0x200, &result);
1113         hwblock = !(result & 0x1);
1114         rfkill_set_hw_state(rfk, hwblock);
1115
1116         err = rfkill_register(rfk);
1117         if (err) {
1118                 rfkill_destroy(rfk);
1119                 return err;
1120         }
1121         sony_rfkill_devices[nc_type] = rfk;
1122         return err;
1123 }
1124
1125 static void sony_nc_rfkill_update()
1126 {
1127         enum sony_nc_rfkill i;
1128         int result;
1129         bool hwblock;
1130
1131         sony_call_snc_handle(0x124, 0x200, &result);
1132         hwblock = !(result & 0x1);
1133
1134         for (i = 0; i < N_SONY_RFKILL; i++) {
1135                 int argument = sony_rfkill_address[i];
1136
1137                 if (!sony_rfkill_devices[i])
1138                         continue;
1139
1140                 if (hwblock) {
1141                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1142                                 /* we already know we're blocked */
1143                         }
1144                         continue;
1145                 }
1146
1147                 sony_call_snc_handle(0x124, argument, &result);
1148                 rfkill_set_states(sony_rfkill_devices[i],
1149                                   !(result & 0xf), false);
1150         }
1151 }
1152
1153 static int sony_nc_rfkill_setup(struct acpi_device *device)
1154 {
1155         int result, ret;
1156
1157         if (sony_find_snc_handle(0x124) == -1)
1158                 return -1;
1159
1160         ret = sony_call_snc_handle(0x124, 0xb00, &result);
1161         if (ret) {
1162                 printk(KERN_INFO DRV_PFX
1163                        "Unable to enumerate rfkill devices: %x\n", ret);
1164                 return ret;
1165         }
1166
1167         if (result & 0x1)
1168                 sony_nc_setup_rfkill(device, SONY_WIFI);
1169         if (result & 0x2)
1170                 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1171         if (result & 0x1c)
1172                 sony_nc_setup_rfkill(device, SONY_WWAN);
1173         if (result & 0x20)
1174                 sony_nc_setup_rfkill(device, SONY_WIMAX);
1175
1176         return 0;
1177 }
1178
1179 static int sony_nc_add(struct acpi_device *device)
1180 {
1181         acpi_status status;
1182         int result = 0;
1183         acpi_handle handle;
1184         struct sony_nc_value *item;
1185
1186         printk(KERN_INFO DRV_PFX "%s v%s.\n",
1187                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1188
1189         sony_nc_acpi_device = device;
1190         strcpy(acpi_device_class(device), "sony/hotkey");
1191
1192         sony_nc_acpi_handle = device->handle;
1193
1194         /* read device status */
1195         result = acpi_bus_get_status(device);
1196         /* bail IFF the above call was successful and the device is not present */
1197         if (!result && !device->status.present) {
1198                 dprintk("Device not present\n");
1199                 result = -ENODEV;
1200                 goto outwalk;
1201         }
1202
1203         if (debug) {
1204                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1205                                              1, sony_walk_callback, NULL, NULL, NULL);
1206                 if (ACPI_FAILURE(status)) {
1207                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1208                         result = -ENODEV;
1209                         goto outwalk;
1210                 }
1211         }
1212
1213         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1214                                          &handle))) {
1215                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1216                         dprintk("ECON Method failed\n");
1217         }
1218
1219         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1220                                          &handle))) {
1221                 dprintk("Doing SNC setup\n");
1222                 sony_nc_function_setup(device);
1223                 sony_nc_rfkill_setup(device);
1224         }
1225
1226         /* setup input devices and helper fifo */
1227         result = sony_laptop_setup_input(device);
1228         if (result) {
1229                 printk(KERN_ERR DRV_PFX
1230                                 "Unable to create input devices.\n");
1231                 goto outwalk;
1232         }
1233
1234         if (acpi_video_backlight_support()) {
1235                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1236                        "controlled by ACPI video driver\n");
1237         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1238                                                 &handle))) {
1239                 sony_backlight_device = backlight_device_register("sony", NULL,
1240                                                                   NULL,
1241                                                                   &sony_backlight_ops);
1242
1243                 if (IS_ERR(sony_backlight_device)) {
1244                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1245                         sony_backlight_device = NULL;
1246                 } else {
1247                         sony_backlight_device->props.brightness =
1248                             sony_backlight_get_brightness
1249                             (sony_backlight_device);
1250                         sony_backlight_device->props.max_brightness =
1251                             SONY_MAX_BRIGHTNESS - 1;
1252                 }
1253
1254         }
1255
1256         result = sony_pf_add();
1257         if (result)
1258                 goto outbacklight;
1259
1260         /* create sony_pf sysfs attributes related to the SNC device */
1261         for (item = sony_nc_values; item->name; ++item) {
1262
1263                 if (!debug && item->debug)
1264                         continue;
1265
1266                 /* find the available acpiget as described in the DSDT */
1267                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1268                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1269                                                          *item->acpiget,
1270                                                          &handle))) {
1271                                 dprintk("Found %s getter: %s\n",
1272                                                 item->name, *item->acpiget);
1273                                 item->devattr.attr.mode |= S_IRUGO;
1274                                 break;
1275                         }
1276                 }
1277
1278                 /* find the available acpiset as described in the DSDT */
1279                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1280                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1281                                                          *item->acpiset,
1282                                                          &handle))) {
1283                                 dprintk("Found %s setter: %s\n",
1284                                                 item->name, *item->acpiset);
1285                                 item->devattr.attr.mode |= S_IWUSR;
1286                                 break;
1287                         }
1288                 }
1289
1290                 if (item->devattr.attr.mode != 0) {
1291                         result =
1292                             device_create_file(&sony_pf_device->dev,
1293                                                &item->devattr);
1294                         if (result)
1295                                 goto out_sysfs;
1296                 }
1297         }
1298
1299         return 0;
1300
1301       out_sysfs:
1302         for (item = sony_nc_values; item->name; ++item) {
1303                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1304         }
1305         sony_pf_remove();
1306
1307       outbacklight:
1308         if (sony_backlight_device)
1309                 backlight_device_unregister(sony_backlight_device);
1310
1311         sony_laptop_remove_input();
1312
1313       outwalk:
1314         sony_nc_rfkill_cleanup();
1315         return result;
1316 }
1317
1318 static int sony_nc_remove(struct acpi_device *device, int type)
1319 {
1320         struct sony_nc_value *item;
1321
1322         if (sony_backlight_device)
1323                 backlight_device_unregister(sony_backlight_device);
1324
1325         sony_nc_acpi_device = NULL;
1326
1327         for (item = sony_nc_values; item->name; ++item) {
1328                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1329         }
1330
1331         sony_pf_remove();
1332         sony_laptop_remove_input();
1333         sony_nc_rfkill_cleanup();
1334         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1335
1336         return 0;
1337 }
1338
1339 static const struct acpi_device_id sony_device_ids[] = {
1340         {SONY_NC_HID, 0},
1341         {SONY_PIC_HID, 0},
1342         {"", 0},
1343 };
1344 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1345
1346 static const struct acpi_device_id sony_nc_device_ids[] = {
1347         {SONY_NC_HID, 0},
1348         {"", 0},
1349 };
1350
1351 static struct acpi_driver sony_nc_driver = {
1352         .name = SONY_NC_DRIVER_NAME,
1353         .class = SONY_NC_CLASS,
1354         .ids = sony_nc_device_ids,
1355         .owner = THIS_MODULE,
1356         .ops = {
1357                 .add = sony_nc_add,
1358                 .remove = sony_nc_remove,
1359                 .resume = sony_nc_resume,
1360                 .notify = sony_nc_notify,
1361                 },
1362 };
1363
1364 /*********** SPIC (SNY6001) Device ***********/
1365
1366 #define SONYPI_DEVICE_TYPE1     0x00000001
1367 #define SONYPI_DEVICE_TYPE2     0x00000002
1368 #define SONYPI_DEVICE_TYPE3     0x00000004
1369 #define SONYPI_DEVICE_TYPE4     0x00000008
1370
1371 #define SONYPI_TYPE1_OFFSET     0x04
1372 #define SONYPI_TYPE2_OFFSET     0x12
1373 #define SONYPI_TYPE3_OFFSET     0x12
1374
1375 struct sony_pic_ioport {
1376         struct acpi_resource_io io1;
1377         struct acpi_resource_io io2;
1378         struct list_head        list;
1379 };
1380
1381 struct sony_pic_irq {
1382         struct acpi_resource_irq        irq;
1383         struct list_head                list;
1384 };
1385
1386 struct sonypi_eventtypes {
1387         u8                      data;
1388         unsigned long           mask;
1389         struct sonypi_event     *events;
1390 };
1391
1392 struct sony_pic_dev {
1393         struct acpi_device              *acpi_dev;
1394         struct sony_pic_irq             *cur_irq;
1395         struct sony_pic_ioport          *cur_ioport;
1396         struct list_head                interrupts;
1397         struct list_head                ioports;
1398         struct mutex                    lock;
1399         struct sonypi_eventtypes        *event_types;
1400         int                             (*handle_irq)(const u8, const u8);
1401         int                             model;
1402         u16                             evport_offset;
1403         u8                              camera_power;
1404         u8                              bluetooth_power;
1405         u8                              wwan_power;
1406 };
1407
1408 static struct sony_pic_dev spic_dev = {
1409         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1410         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1411 };
1412
1413 static int spic_drv_registered;
1414
1415 /* Event masks */
1416 #define SONYPI_JOGGER_MASK                      0x00000001
1417 #define SONYPI_CAPTURE_MASK                     0x00000002
1418 #define SONYPI_FNKEY_MASK                       0x00000004
1419 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1420 #define SONYPI_PKEY_MASK                        0x00000010
1421 #define SONYPI_BACK_MASK                        0x00000020
1422 #define SONYPI_HELP_MASK                        0x00000040
1423 #define SONYPI_LID_MASK                         0x00000080
1424 #define SONYPI_ZOOM_MASK                        0x00000100
1425 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1426 #define SONYPI_MEYE_MASK                        0x00000400
1427 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1428 #define SONYPI_BATTERY_MASK                     0x00001000
1429 #define SONYPI_WIRELESS_MASK                    0x00002000
1430
1431 struct sonypi_event {
1432         u8      data;
1433         u8      event;
1434 };
1435
1436 /* The set of possible button release events */
1437 static struct sonypi_event sonypi_releaseev[] = {
1438         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1439         { 0, 0 }
1440 };
1441
1442 /* The set of possible jogger events  */
1443 static struct sonypi_event sonypi_joggerev[] = {
1444         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1445         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1446         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1447         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1448         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1449         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1450         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1451         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1452         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1453         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1454         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1455         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1456         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1457         { 0, 0 }
1458 };
1459
1460 /* The set of possible capture button events */
1461 static struct sonypi_event sonypi_captureev[] = {
1462         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1463         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1464         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1465         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1466         { 0, 0 }
1467 };
1468
1469 /* The set of possible fnkeys events */
1470 static struct sonypi_event sonypi_fnkeyev[] = {
1471         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1472         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1473         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1474         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1475         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1476         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1477         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1478         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1479         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1480         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1481         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1482         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1483         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1484         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1485         { 0x21, SONYPI_EVENT_FNKEY_1 },
1486         { 0x22, SONYPI_EVENT_FNKEY_2 },
1487         { 0x31, SONYPI_EVENT_FNKEY_D },
1488         { 0x32, SONYPI_EVENT_FNKEY_E },
1489         { 0x33, SONYPI_EVENT_FNKEY_F },
1490         { 0x34, SONYPI_EVENT_FNKEY_S },
1491         { 0x35, SONYPI_EVENT_FNKEY_B },
1492         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1493         { 0, 0 }
1494 };
1495
1496 /* The set of possible program key events */
1497 static struct sonypi_event sonypi_pkeyev[] = {
1498         { 0x01, SONYPI_EVENT_PKEY_P1 },
1499         { 0x02, SONYPI_EVENT_PKEY_P2 },
1500         { 0x04, SONYPI_EVENT_PKEY_P3 },
1501         { 0x20, SONYPI_EVENT_PKEY_P1 },
1502         { 0, 0 }
1503 };
1504
1505 /* The set of possible bluetooth events */
1506 static struct sonypi_event sonypi_blueev[] = {
1507         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1508         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1509         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1510         { 0, 0 }
1511 };
1512
1513 /* The set of possible wireless events */
1514 static struct sonypi_event sonypi_wlessev[] = {
1515         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1516         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1517         { 0, 0 }
1518 };
1519
1520 /* The set of possible back button events */
1521 static struct sonypi_event sonypi_backev[] = {
1522         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1523         { 0, 0 }
1524 };
1525
1526 /* The set of possible help button events */
1527 static struct sonypi_event sonypi_helpev[] = {
1528         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1529         { 0, 0 }
1530 };
1531
1532
1533 /* The set of possible lid events */
1534 static struct sonypi_event sonypi_lidev[] = {
1535         { 0x51, SONYPI_EVENT_LID_CLOSED },
1536         { 0x50, SONYPI_EVENT_LID_OPENED },
1537         { 0, 0 }
1538 };
1539
1540 /* The set of possible zoom events */
1541 static struct sonypi_event sonypi_zoomev[] = {
1542         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1543         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1544         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1545         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1546         { 0, 0 }
1547 };
1548
1549 /* The set of possible thumbphrase events */
1550 static struct sonypi_event sonypi_thumbphraseev[] = {
1551         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1552         { 0, 0 }
1553 };
1554
1555 /* The set of possible motioneye camera events */
1556 static struct sonypi_event sonypi_meyeev[] = {
1557         { 0x00, SONYPI_EVENT_MEYE_FACE },
1558         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1559         { 0, 0 }
1560 };
1561
1562 /* The set of possible memorystick events */
1563 static struct sonypi_event sonypi_memorystickev[] = {
1564         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1565         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1566         { 0, 0 }
1567 };
1568
1569 /* The set of possible battery events */
1570 static struct sonypi_event sonypi_batteryev[] = {
1571         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1572         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1573         { 0, 0 }
1574 };
1575
1576 /* The set of possible volume events */
1577 static struct sonypi_event sonypi_volumeev[] = {
1578         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1579         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1580         { 0, 0 }
1581 };
1582
1583 /* The set of possible brightness events */
1584 static struct sonypi_event sonypi_brightnessev[] = {
1585         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1586         { 0, 0 }
1587 };
1588
1589 static struct sonypi_eventtypes type1_events[] = {
1590         { 0, 0xffffffff, sonypi_releaseev },
1591         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1592         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1593         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1594         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1595         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1596         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1597         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1598         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1599         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1600         { 0 },
1601 };
1602 static struct sonypi_eventtypes type2_events[] = {
1603         { 0, 0xffffffff, sonypi_releaseev },
1604         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1605         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1606         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1607         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1608         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1609         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1610         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1611         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1612         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1613         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1614         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1615         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1616         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1617         { 0 },
1618 };
1619 static struct sonypi_eventtypes type3_events[] = {
1620         { 0, 0xffffffff, sonypi_releaseev },
1621         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1622         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1623         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1624         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1625         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1626         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1627         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1628         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1629         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1630         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1631         { 0 },
1632 };
1633
1634 /* low level spic calls */
1635 #define ITERATIONS_LONG         10000
1636 #define ITERATIONS_SHORT        10
1637 #define wait_on_command(command, iterations) {                          \
1638         unsigned int n = iterations;                                    \
1639         while (--n && (command))                                        \
1640                 udelay(1);                                              \
1641         if (!n)                                                         \
1642                 dprintk("command failed at %s : %s (line %d)\n",        \
1643                                 __FILE__, __func__, __LINE__);  \
1644 }
1645
1646 static u8 sony_pic_call1(u8 dev)
1647 {
1648         u8 v1, v2;
1649
1650         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1651                         ITERATIONS_LONG);
1652         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1653         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1654         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1655         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1656         return v2;
1657 }
1658
1659 static u8 sony_pic_call2(u8 dev, u8 fn)
1660 {
1661         u8 v1;
1662
1663         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1664                         ITERATIONS_LONG);
1665         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1666         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1667                         ITERATIONS_LONG);
1668         outb(fn, spic_dev.cur_ioport->io1.minimum);
1669         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1670         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1671         return v1;
1672 }
1673
1674 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1675 {
1676         u8 v1;
1677
1678         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1679         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1680         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1681         outb(fn, spic_dev.cur_ioport->io1.minimum);
1682         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1683         outb(v, spic_dev.cur_ioport->io1.minimum);
1684         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1685         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1686                         dev, fn, v, v1);
1687         return v1;
1688 }
1689
1690 /*
1691  * minidrivers for SPIC models
1692  */
1693 static int type3_handle_irq(const u8 data_mask, const u8 ev)
1694 {
1695         /*
1696          * 0x31 could mean we have to take some extra action and wait for
1697          * the next irq for some Type3 models, it will generate a new
1698          * irq and we can read new data from the device:
1699          *  - 0x5c and 0x5f requires 0xA0
1700          *  - 0x61 requires 0xB3
1701          */
1702         if (data_mask == 0x31) {
1703                 if (ev == 0x5c || ev == 0x5f)
1704                         sony_pic_call1(0xA0);
1705                 else if (ev == 0x61)
1706                         sony_pic_call1(0xB3);
1707                 return 0;
1708         }
1709         return 1;
1710 }
1711
1712 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1713 {
1714         struct pci_dev *pcidev;
1715
1716         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1717                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1718         if (pcidev) {
1719                 dev->model = SONYPI_DEVICE_TYPE1;
1720                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
1721                 dev->event_types = type1_events;
1722                 goto out;
1723         }
1724
1725         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1726                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1727         if (pcidev) {
1728                 dev->model = SONYPI_DEVICE_TYPE2;
1729                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1730                 dev->event_types = type2_events;
1731                 goto out;
1732         }
1733
1734         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1735                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1736         if (pcidev) {
1737                 dev->model = SONYPI_DEVICE_TYPE3;
1738                 dev->handle_irq = type3_handle_irq;
1739                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1740                 dev->event_types = type3_events;
1741                 goto out;
1742         }
1743
1744         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1745                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1746         if (pcidev) {
1747                 dev->model = SONYPI_DEVICE_TYPE3;
1748                 dev->handle_irq = type3_handle_irq;
1749                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1750                 dev->event_types = type3_events;
1751                 goto out;
1752         }
1753
1754         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1755                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1756         if (pcidev) {
1757                 dev->model = SONYPI_DEVICE_TYPE3;
1758                 dev->handle_irq = type3_handle_irq;
1759                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1760                 dev->event_types = type3_events;
1761                 goto out;
1762         }
1763
1764         /* default */
1765         dev->model = SONYPI_DEVICE_TYPE2;
1766         dev->evport_offset = SONYPI_TYPE2_OFFSET;
1767         dev->event_types = type2_events;
1768
1769 out:
1770         if (pcidev)
1771                 pci_dev_put(pcidev);
1772
1773         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1774                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
1775                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1776 }
1777
1778 /* camera tests and poweron/poweroff */
1779 #define SONYPI_CAMERA_PICTURE           5
1780 #define SONYPI_CAMERA_CONTROL           0x10
1781
1782 #define SONYPI_CAMERA_BRIGHTNESS                0
1783 #define SONYPI_CAMERA_CONTRAST                  1
1784 #define SONYPI_CAMERA_HUE                       2
1785 #define SONYPI_CAMERA_COLOR                     3
1786 #define SONYPI_CAMERA_SHARPNESS                 4
1787
1788 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1789 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1790 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1791 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1792
1793 /* the rest don't need a loop until not 0xff */
1794 #define SONYPI_CAMERA_AGC                       6
1795 #define SONYPI_CAMERA_AGC_MASK                  0x30
1796 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1797
1798 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1799 #define SONYPI_CAMERA_CONTROL                   0x10
1800
1801 #define SONYPI_CAMERA_STATUS                    7
1802 #define SONYPI_CAMERA_STATUS_READY              0x2
1803 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1804
1805 #define SONYPI_DIRECTION_BACKWARDS              0x4
1806
1807 #define SONYPI_CAMERA_REVISION                  8
1808 #define SONYPI_CAMERA_ROMVERSION                9
1809
1810 static int __sony_pic_camera_ready(void)
1811 {
1812         u8 v;
1813
1814         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1815         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1816 }
1817
1818 static int __sony_pic_camera_off(void)
1819 {
1820         if (!camera) {
1821                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1822                 return -ENODEV;
1823         }
1824
1825         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1826                                 SONYPI_CAMERA_MUTE_MASK),
1827                         ITERATIONS_SHORT);
1828
1829         if (spic_dev.camera_power) {
1830                 sony_pic_call2(0x91, 0);
1831                 spic_dev.camera_power = 0;
1832         }
1833         return 0;
1834 }
1835
1836 static int __sony_pic_camera_on(void)
1837 {
1838         int i, j, x;
1839
1840         if (!camera) {
1841                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1842                 return -ENODEV;
1843         }
1844
1845         if (spic_dev.camera_power)
1846                 return 0;
1847
1848         for (j = 5; j > 0; j--) {
1849
1850                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1851                         msleep(10);
1852                 sony_pic_call1(0x93);
1853
1854                 for (i = 400; i > 0; i--) {
1855                         if (__sony_pic_camera_ready())
1856                                 break;
1857                         msleep(10);
1858                 }
1859                 if (i)
1860                         break;
1861         }
1862
1863         if (j == 0) {
1864                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1865                 return -ENODEV;
1866         }
1867
1868         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1869                                 0x5a),
1870                         ITERATIONS_SHORT);
1871
1872         spic_dev.camera_power = 1;
1873         return 0;
1874 }
1875
1876 /* External camera command (exported to the motion eye v4l driver) */
1877 int sony_pic_camera_command(int command, u8 value)
1878 {
1879         if (!camera)
1880                 return -EIO;
1881
1882         mutex_lock(&spic_dev.lock);
1883
1884         switch (command) {
1885         case SONY_PIC_COMMAND_SETCAMERA:
1886                 if (value)
1887                         __sony_pic_camera_on();
1888                 else
1889                         __sony_pic_camera_off();
1890                 break;
1891         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1892                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1893                                 ITERATIONS_SHORT);
1894                 break;
1895         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1896                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1897                                 ITERATIONS_SHORT);
1898                 break;
1899         case SONY_PIC_COMMAND_SETCAMERAHUE:
1900                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1901                                 ITERATIONS_SHORT);
1902                 break;
1903         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1904                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1905                                 ITERATIONS_SHORT);
1906                 break;
1907         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1908                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1909                                 ITERATIONS_SHORT);
1910                 break;
1911         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1912                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1913                                 ITERATIONS_SHORT);
1914                 break;
1915         case SONY_PIC_COMMAND_SETCAMERAAGC:
1916                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1917                                 ITERATIONS_SHORT);
1918                 break;
1919         default:
1920                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1921                        command);
1922                 break;
1923         }
1924         mutex_unlock(&spic_dev.lock);
1925         return 0;
1926 }
1927 EXPORT_SYMBOL(sony_pic_camera_command);
1928
1929 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1930 static void __sony_pic_set_wwanpower(u8 state)
1931 {
1932         state = !!state;
1933         if (spic_dev.wwan_power == state)
1934                 return;
1935         sony_pic_call2(0xB0, state);
1936         sony_pic_call1(0x82);
1937         spic_dev.wwan_power = state;
1938 }
1939
1940 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1941                 struct device_attribute *attr,
1942                 const char *buffer, size_t count)
1943 {
1944         unsigned long value;
1945         if (count > 31)
1946                 return -EINVAL;
1947
1948         value = simple_strtoul(buffer, NULL, 10);
1949         mutex_lock(&spic_dev.lock);
1950         __sony_pic_set_wwanpower(value);
1951         mutex_unlock(&spic_dev.lock);
1952
1953         return count;
1954 }
1955
1956 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1957                 struct device_attribute *attr, char *buffer)
1958 {
1959         ssize_t count;
1960         mutex_lock(&spic_dev.lock);
1961         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1962         mutex_unlock(&spic_dev.lock);
1963         return count;
1964 }
1965
1966 /* bluetooth subsystem power state */
1967 static void __sony_pic_set_bluetoothpower(u8 state)
1968 {
1969         state = !!state;
1970         if (spic_dev.bluetooth_power == state)
1971                 return;
1972         sony_pic_call2(0x96, state);
1973         sony_pic_call1(0x82);
1974         spic_dev.bluetooth_power = state;
1975 }
1976
1977 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1978                 struct device_attribute *attr,
1979                 const char *buffer, size_t count)
1980 {
1981         unsigned long value;
1982         if (count > 31)
1983                 return -EINVAL;
1984
1985         value = simple_strtoul(buffer, NULL, 10);
1986         mutex_lock(&spic_dev.lock);
1987         __sony_pic_set_bluetoothpower(value);
1988         mutex_unlock(&spic_dev.lock);
1989
1990         return count;
1991 }
1992
1993 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1994                 struct device_attribute *attr, char *buffer)
1995 {
1996         ssize_t count = 0;
1997         mutex_lock(&spic_dev.lock);
1998         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1999         mutex_unlock(&spic_dev.lock);
2000         return count;
2001 }
2002
2003 /* fan speed */
2004 /* FAN0 information (reverse engineered from ACPI tables) */
2005 #define SONY_PIC_FAN0_STATUS    0x93
2006 static int sony_pic_set_fanspeed(unsigned long value)
2007 {
2008         return ec_write(SONY_PIC_FAN0_STATUS, value);
2009 }
2010
2011 static int sony_pic_get_fanspeed(u8 *value)
2012 {
2013         return ec_read(SONY_PIC_FAN0_STATUS, value);
2014 }
2015
2016 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2017                 struct device_attribute *attr,
2018                 const char *buffer, size_t count)
2019 {
2020         unsigned long value;
2021         if (count > 31)
2022                 return -EINVAL;
2023
2024         value = simple_strtoul(buffer, NULL, 10);
2025         if (sony_pic_set_fanspeed(value))
2026                 return -EIO;
2027
2028         return count;
2029 }
2030
2031 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2032                 struct device_attribute *attr, char *buffer)
2033 {
2034         u8 value = 0;
2035         if (sony_pic_get_fanspeed(&value))
2036                 return -EIO;
2037
2038         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2039 }
2040
2041 #define SPIC_ATTR(_name, _mode)                                 \
2042 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2043                 _mode, sony_pic_## _name ##_show,               \
2044                 sony_pic_## _name ##_store)
2045
2046 static SPIC_ATTR(bluetoothpower, 0644);
2047 static SPIC_ATTR(wwanpower, 0644);
2048 static SPIC_ATTR(fanspeed, 0644);
2049
2050 static struct attribute *spic_attributes[] = {
2051         &spic_attr_bluetoothpower.attr,
2052         &spic_attr_wwanpower.attr,
2053         &spic_attr_fanspeed.attr,
2054         NULL
2055 };
2056
2057 static struct attribute_group spic_attribute_group = {
2058         .attrs = spic_attributes
2059 };
2060
2061 /******** SONYPI compatibility **********/
2062 #ifdef CONFIG_SONYPI_COMPAT
2063
2064 /* battery / brightness / temperature  addresses */
2065 #define SONYPI_BAT_FLAGS        0x81
2066 #define SONYPI_LCD_LIGHT        0x96
2067 #define SONYPI_BAT1_PCTRM       0xa0
2068 #define SONYPI_BAT1_LEFT        0xa2
2069 #define SONYPI_BAT1_MAXRT       0xa4
2070 #define SONYPI_BAT2_PCTRM       0xa8
2071 #define SONYPI_BAT2_LEFT        0xaa
2072 #define SONYPI_BAT2_MAXRT       0xac
2073 #define SONYPI_BAT1_MAXTK       0xb0
2074 #define SONYPI_BAT1_FULL        0xb2
2075 #define SONYPI_BAT2_MAXTK       0xb8
2076 #define SONYPI_BAT2_FULL        0xba
2077 #define SONYPI_TEMP_STATUS      0xC1
2078
2079 struct sonypi_compat_s {
2080         struct fasync_struct    *fifo_async;
2081         struct kfifo            fifo;
2082         spinlock_t              fifo_lock;
2083         wait_queue_head_t       fifo_proc_list;
2084         atomic_t                open_count;
2085 };
2086 static struct sonypi_compat_s sonypi_compat = {
2087         .open_count = ATOMIC_INIT(0),
2088 };
2089
2090 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2091 {
2092         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2093 }
2094
2095 static int sonypi_misc_release(struct inode *inode, struct file *file)
2096 {
2097         atomic_dec(&sonypi_compat.open_count);
2098         return 0;
2099 }
2100
2101 static int sonypi_misc_open(struct inode *inode, struct file *file)
2102 {
2103         /* Flush input queue on first open */
2104         unsigned long flags;
2105
2106         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2107
2108         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2109                 __kfifo_reset(&sonypi_compat.fifo);
2110
2111         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2112
2113         return 0;
2114 }
2115
2116 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2117                                 size_t count, loff_t *pos)
2118 {
2119         ssize_t ret;
2120         unsigned char c;
2121
2122         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2123             (file->f_flags & O_NONBLOCK))
2124                 return -EAGAIN;
2125
2126         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2127                                        kfifo_len(&sonypi_compat.fifo) != 0);
2128         if (ret)
2129                 return ret;
2130
2131         while (ret < count &&
2132                (kfifo_get(&sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
2133                 if (put_user(c, buf++))
2134                         return -EFAULT;
2135                 ret++;
2136         }
2137
2138         if (ret > 0) {
2139                 struct inode *inode = file->f_path.dentry->d_inode;
2140                 inode->i_atime = current_fs_time(inode->i_sb);
2141         }
2142
2143         return ret;
2144 }
2145
2146 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2147 {
2148         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2149         if (kfifo_len(&sonypi_compat.fifo))
2150                 return POLLIN | POLLRDNORM;
2151         return 0;
2152 }
2153
2154 static int ec_read16(u8 addr, u16 *value)
2155 {
2156         u8 val_lb, val_hb;
2157         if (ec_read(addr, &val_lb))
2158                 return -1;
2159         if (ec_read(addr + 1, &val_hb))
2160                 return -1;
2161         *value = val_lb | (val_hb << 8);
2162         return 0;
2163 }
2164
2165 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2166                                                         unsigned long arg)
2167 {
2168         int ret = 0;
2169         void __user *argp = (void __user *)arg;
2170         u8 val8;
2171         u16 val16;
2172         int value;
2173
2174         mutex_lock(&spic_dev.lock);
2175         switch (cmd) {
2176         case SONYPI_IOCGBRT:
2177                 if (sony_backlight_device == NULL) {
2178                         ret = -EIO;
2179                         break;
2180                 }
2181                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2182                         ret = -EIO;
2183                         break;
2184                 }
2185                 val8 = ((value & 0xff) - 1) << 5;
2186                 if (copy_to_user(argp, &val8, sizeof(val8)))
2187                                 ret = -EFAULT;
2188                 break;
2189         case SONYPI_IOCSBRT:
2190                 if (sony_backlight_device == NULL) {
2191                         ret = -EIO;
2192                         break;
2193                 }
2194                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2195                         ret = -EFAULT;
2196                         break;
2197                 }
2198                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2199                                 (val8 >> 5) + 1, NULL)) {
2200                         ret = -EIO;
2201                         break;
2202                 }
2203                 /* sync the backlight device status */
2204                 sony_backlight_device->props.brightness =
2205                     sony_backlight_get_brightness(sony_backlight_device);
2206                 break;
2207         case SONYPI_IOCGBAT1CAP:
2208                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2209                         ret = -EIO;
2210                         break;
2211                 }
2212                 if (copy_to_user(argp, &val16, sizeof(val16)))
2213                         ret = -EFAULT;
2214                 break;
2215         case SONYPI_IOCGBAT1REM:
2216                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2217                         ret = -EIO;
2218                         break;
2219                 }
2220                 if (copy_to_user(argp, &val16, sizeof(val16)))
2221                         ret = -EFAULT;
2222                 break;
2223         case SONYPI_IOCGBAT2CAP:
2224                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2225                         ret = -EIO;
2226                         break;
2227                 }
2228                 if (copy_to_user(argp, &val16, sizeof(val16)))
2229                         ret = -EFAULT;
2230                 break;
2231         case SONYPI_IOCGBAT2REM:
2232                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2233                         ret = -EIO;
2234                         break;
2235                 }
2236                 if (copy_to_user(argp, &val16, sizeof(val16)))
2237                         ret = -EFAULT;
2238                 break;
2239         case SONYPI_IOCGBATFLAGS:
2240                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2241                         ret = -EIO;
2242                         break;
2243                 }
2244                 val8 &= 0x07;
2245                 if (copy_to_user(argp, &val8, sizeof(val8)))
2246                         ret = -EFAULT;
2247                 break;
2248         case SONYPI_IOCGBLUE:
2249                 val8 = spic_dev.bluetooth_power;
2250                 if (copy_to_user(argp, &val8, sizeof(val8)))
2251                         ret = -EFAULT;
2252                 break;
2253         case SONYPI_IOCSBLUE:
2254                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2255                         ret = -EFAULT;
2256                         break;
2257                 }
2258                 __sony_pic_set_bluetoothpower(val8);
2259                 break;
2260         /* FAN Controls */
2261         case SONYPI_IOCGFAN:
2262                 if (sony_pic_get_fanspeed(&val8)) {
2263                         ret = -EIO;
2264                         break;
2265                 }
2266                 if (copy_to_user(argp, &val8, sizeof(val8)))
2267                         ret = -EFAULT;
2268                 break;
2269         case SONYPI_IOCSFAN:
2270                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2271                         ret = -EFAULT;
2272                         break;
2273                 }
2274                 if (sony_pic_set_fanspeed(val8))
2275                         ret = -EIO;
2276                 break;
2277         /* GET Temperature (useful under APM) */
2278         case SONYPI_IOCGTEMP:
2279                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2280                         ret = -EIO;
2281                         break;
2282                 }
2283                 if (copy_to_user(argp, &val8, sizeof(val8)))
2284                         ret = -EFAULT;
2285                 break;
2286         default:
2287                 ret = -EINVAL;
2288         }
2289         mutex_unlock(&spic_dev.lock);
2290         return ret;
2291 }
2292
2293 static const struct file_operations sonypi_misc_fops = {
2294         .owner          = THIS_MODULE,
2295         .read           = sonypi_misc_read,
2296         .poll           = sonypi_misc_poll,
2297         .open           = sonypi_misc_open,
2298         .release        = sonypi_misc_release,
2299         .fasync         = sonypi_misc_fasync,
2300         .unlocked_ioctl = sonypi_misc_ioctl,
2301 };
2302
2303 static struct miscdevice sonypi_misc_device = {
2304         .minor          = MISC_DYNAMIC_MINOR,
2305         .name           = "sonypi",
2306         .fops           = &sonypi_misc_fops,
2307 };
2308
2309 static void sonypi_compat_report_event(u8 event)
2310 {
2311         kfifo_put(&sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2312         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2313         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2314 }
2315
2316 static int sonypi_compat_init(void)
2317 {
2318         int error;
2319
2320         spin_lock_init(&sonypi_compat.fifo_lock);
2321         error =
2322          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2323                                          &sonypi_compat.fifo_lock);
2324         if (error) {
2325                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2326                 return error;
2327         }
2328
2329         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2330
2331         if (minor != -1)
2332                 sonypi_misc_device.minor = minor;
2333         error = misc_register(&sonypi_misc_device);
2334         if (error) {
2335                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2336                 goto err_free_kfifo;
2337         }
2338         if (minor == -1)
2339                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2340                        sonypi_misc_device.minor);
2341
2342         return 0;
2343
2344 err_free_kfifo:
2345         kfifo_free(&sonypi_compat.fifo);
2346         return error;
2347 }
2348
2349 static void sonypi_compat_exit(void)
2350 {
2351         misc_deregister(&sonypi_misc_device);
2352         kfifo_free(&sonypi_compat.fifo);
2353 }
2354 #else
2355 static int sonypi_compat_init(void) { return 0; }
2356 static void sonypi_compat_exit(void) { }
2357 static void sonypi_compat_report_event(u8 event) { }
2358 #endif /* CONFIG_SONYPI_COMPAT */
2359
2360 /*
2361  * ACPI callbacks
2362  */
2363 static acpi_status
2364 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2365 {
2366         u32 i;
2367         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2368
2369         switch (resource->type) {
2370         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2371                 {
2372                         /* start IO enumeration */
2373                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2374                         if (!ioport)
2375                                 return AE_ERROR;
2376
2377                         list_add(&ioport->list, &dev->ioports);
2378                         return AE_OK;
2379                 }
2380
2381         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2382                 /* end IO enumeration */
2383                 return AE_OK;
2384
2385         case ACPI_RESOURCE_TYPE_IRQ:
2386                 {
2387                         struct acpi_resource_irq *p = &resource->data.irq;
2388                         struct sony_pic_irq *interrupt = NULL;
2389                         if (!p || !p->interrupt_count) {
2390                                 /*
2391                                  * IRQ descriptors may have no IRQ# bits set,
2392                                  * particularly those those w/ _STA disabled
2393                                  */
2394                                 dprintk("Blank IRQ resource\n");
2395                                 return AE_OK;
2396                         }
2397                         for (i = 0; i < p->interrupt_count; i++) {
2398                                 if (!p->interrupts[i]) {
2399                                         printk(KERN_WARNING DRV_PFX
2400                                                         "Invalid IRQ %d\n",
2401                                                         p->interrupts[i]);
2402                                         continue;
2403                                 }
2404                                 interrupt = kzalloc(sizeof(*interrupt),
2405                                                 GFP_KERNEL);
2406                                 if (!interrupt)
2407                                         return AE_ERROR;
2408
2409                                 list_add(&interrupt->list, &dev->interrupts);
2410                                 interrupt->irq.triggering = p->triggering;
2411                                 interrupt->irq.polarity = p->polarity;
2412                                 interrupt->irq.sharable = p->sharable;
2413                                 interrupt->irq.interrupt_count = 1;
2414                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2415                         }
2416                         return AE_OK;
2417                 }
2418         case ACPI_RESOURCE_TYPE_IO:
2419                 {
2420                         struct acpi_resource_io *io = &resource->data.io;
2421                         struct sony_pic_ioport *ioport =
2422                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2423                         if (!io) {
2424                                 dprintk("Blank IO resource\n");
2425                                 return AE_OK;
2426                         }
2427
2428                         if (!ioport->io1.minimum) {
2429                                 memcpy(&ioport->io1, io, sizeof(*io));
2430                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2431                                                 ioport->io1.address_length);
2432                         }
2433                         else if (!ioport->io2.minimum) {
2434                                 memcpy(&ioport->io2, io, sizeof(*io));
2435                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2436                                                 ioport->io2.address_length);
2437                         }
2438                         else {
2439                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2440                                 return AE_ERROR;
2441                         }
2442                         return AE_OK;
2443                 }
2444         default:
2445                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2446                                 resource->type);
2447
2448         case ACPI_RESOURCE_TYPE_END_TAG:
2449                 return AE_OK;
2450         }
2451         return AE_CTRL_TERMINATE;
2452 }
2453
2454 static int sony_pic_possible_resources(struct acpi_device *device)
2455 {
2456         int result = 0;
2457         acpi_status status = AE_OK;
2458
2459         if (!device)
2460                 return -EINVAL;
2461
2462         /* get device status */
2463         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2464         dprintk("Evaluating _STA\n");
2465         result = acpi_bus_get_status(device);
2466         if (result) {
2467                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2468                 goto end;
2469         }
2470
2471         if (!device->status.enabled)
2472                 dprintk("Device disabled\n");
2473         else
2474                 dprintk("Device enabled\n");
2475
2476         /*
2477          * Query and parse 'method'
2478          */
2479         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2480         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2481                         sony_pic_read_possible_resource, &spic_dev);
2482         if (ACPI_FAILURE(status)) {
2483                 printk(KERN_WARNING DRV_PFX
2484                                 "Failure evaluating %s\n",
2485                                 METHOD_NAME__PRS);
2486                 result = -ENODEV;
2487         }
2488 end:
2489         return result;
2490 }
2491
2492 /*
2493  *  Disable the spic device by calling its _DIS method
2494  */
2495 static int sony_pic_disable(struct acpi_device *device)
2496 {
2497         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2498                                                NULL);
2499
2500         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2501                 return -ENXIO;
2502
2503         dprintk("Device disabled\n");
2504         return 0;
2505 }
2506
2507
2508 /*
2509  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2510  *
2511  *  Call _SRS to set current resources
2512  */
2513 static int sony_pic_enable(struct acpi_device *device,
2514                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2515 {
2516         acpi_status status;
2517         int result = 0;
2518         /* Type 1 resource layout is:
2519          *    IO
2520          *    IO
2521          *    IRQNoFlags
2522          *    End
2523          *
2524          * Type 2 and 3 resource layout is:
2525          *    IO
2526          *    IRQNoFlags
2527          *    End
2528          */
2529         struct {
2530                 struct acpi_resource res1;
2531                 struct acpi_resource res2;
2532                 struct acpi_resource res3;
2533                 struct acpi_resource res4;
2534         } *resource;
2535         struct acpi_buffer buffer = { 0, NULL };
2536
2537         if (!ioport || !irq)
2538                 return -EINVAL;
2539
2540         /* init acpi_buffer */
2541         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2542         if (!resource)
2543                 return -ENOMEM;
2544
2545         buffer.length = sizeof(*resource) + 1;
2546         buffer.pointer = resource;
2547
2548         /* setup Type 1 resources */
2549         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2550
2551                 /* setup io resources */
2552                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2553                 resource->res1.length = sizeof(struct acpi_resource);
2554                 memcpy(&resource->res1.data.io, &ioport->io1,
2555                                 sizeof(struct acpi_resource_io));
2556
2557                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2558                 resource->res2.length = sizeof(struct acpi_resource);
2559                 memcpy(&resource->res2.data.io, &ioport->io2,
2560                                 sizeof(struct acpi_resource_io));
2561
2562                 /* setup irq resource */
2563                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2564                 resource->res3.length = sizeof(struct acpi_resource);
2565                 memcpy(&resource->res3.data.irq, &irq->irq,
2566                                 sizeof(struct acpi_resource_irq));
2567                 /* we requested a shared irq */
2568                 resource->res3.data.irq.sharable = ACPI_SHARED;
2569
2570                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2571
2572         }
2573         /* setup Type 2/3 resources */
2574         else {
2575                 /* setup io resource */
2576                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2577                 resource->res1.length = sizeof(struct acpi_resource);
2578                 memcpy(&resource->res1.data.io, &ioport->io1,
2579                                 sizeof(struct acpi_resource_io));
2580
2581                 /* setup irq resource */
2582                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2583                 resource->res2.length = sizeof(struct acpi_resource);
2584                 memcpy(&resource->res2.data.irq, &irq->irq,
2585                                 sizeof(struct acpi_resource_irq));
2586                 /* we requested a shared irq */
2587                 resource->res2.data.irq.sharable = ACPI_SHARED;
2588
2589                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2590         }
2591
2592         /* Attempt to set the resource */
2593         dprintk("Evaluating _SRS\n");
2594         status = acpi_set_current_resources(device->handle, &buffer);
2595
2596         /* check for total failure */
2597         if (ACPI_FAILURE(status)) {
2598                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2599                 result = -ENODEV;
2600                 goto end;
2601         }
2602
2603         /* Necessary device initializations calls (from sonypi) */
2604         sony_pic_call1(0x82);
2605         sony_pic_call2(0x81, 0xff);
2606         sony_pic_call1(compat ? 0x92 : 0x82);
2607
2608 end:
2609         kfree(resource);
2610         return result;
2611 }
2612
2613 /*****************
2614  *
2615  * ISR: some event is available
2616  *
2617  *****************/
2618 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2619 {
2620         int i, j;
2621         u8 ev = 0;
2622         u8 data_mask = 0;
2623         u8 device_event = 0;
2624
2625         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2626
2627         ev = inb_p(dev->cur_ioport->io1.minimum);
2628         if (dev->cur_ioport->io2.minimum)
2629                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2630         else
2631                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2632                                 dev->evport_offset);
2633
2634         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2635                         ev, data_mask, dev->cur_ioport->io1.minimum,
2636                         dev->evport_offset);
2637
2638         if (ev == 0x00 || ev == 0xff)
2639                 return IRQ_HANDLED;
2640
2641         for (i = 0; dev->event_types[i].mask; i++) {
2642
2643                 if ((data_mask & dev->event_types[i].data) !=
2644                     dev->event_types[i].data)
2645                         continue;
2646
2647                 if (!(mask & dev->event_types[i].mask))
2648                         continue;
2649
2650                 for (j = 0; dev->event_types[i].events[j].event; j++) {
2651                         if (ev == dev->event_types[i].events[j].data) {
2652                                 device_event =
2653                                         dev->event_types[i].events[j].event;
2654                                 goto found;
2655                         }
2656                 }
2657         }
2658         /* Still not able to decode the event try to pass
2659          * it over to the minidriver
2660          */
2661         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
2662                 return IRQ_HANDLED;
2663
2664         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2665                         ev, data_mask, dev->cur_ioport->io1.minimum,
2666                         dev->evport_offset);
2667         return IRQ_HANDLED;
2668
2669 found:
2670         sony_laptop_report_input_event(device_event);
2671         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2672         sonypi_compat_report_event(device_event);
2673
2674         return IRQ_HANDLED;
2675 }
2676
2677 /*****************
2678  *
2679  *  ACPI driver
2680  *
2681  *****************/
2682 static int sony_pic_remove(struct acpi_device *device, int type)
2683 {
2684         struct sony_pic_ioport *io, *tmp_io;
2685         struct sony_pic_irq *irq, *tmp_irq;
2686
2687         if (sony_pic_disable(device)) {
2688                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2689                 return -ENXIO;
2690         }
2691
2692         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2693         release_region(spic_dev.cur_ioport->io1.minimum,
2694                         spic_dev.cur_ioport->io1.address_length);
2695         if (spic_dev.cur_ioport->io2.minimum)
2696                 release_region(spic_dev.cur_ioport->io2.minimum,
2697                                 spic_dev.cur_ioport->io2.address_length);
2698
2699         sonypi_compat_exit();
2700
2701         sony_laptop_remove_input();
2702
2703         /* pf attrs */
2704         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2705         sony_pf_remove();
2706
2707         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2708                 list_del(&io->list);
2709                 kfree(io);
2710         }
2711         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2712                 list_del(&irq->list);
2713                 kfree(irq);
2714         }
2715         spic_dev.cur_ioport = NULL;
2716         spic_dev.cur_irq = NULL;
2717
2718         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2719         return 0;
2720 }
2721
2722 static int sony_pic_add(struct acpi_device *device)
2723 {
2724         int result;
2725         struct sony_pic_ioport *io, *tmp_io;
2726         struct sony_pic_irq *irq, *tmp_irq;
2727
2728         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2729                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2730
2731         spic_dev.acpi_dev = device;
2732         strcpy(acpi_device_class(device), "sony/hotkey");
2733         sony_pic_detect_device_type(&spic_dev);
2734         mutex_init(&spic_dev.lock);
2735
2736         /* read _PRS resources */
2737         result = sony_pic_possible_resources(device);
2738         if (result) {
2739                 printk(KERN_ERR DRV_PFX
2740                                 "Unable to read possible resources.\n");
2741                 goto err_free_resources;
2742         }
2743
2744         /* setup input devices and helper fifo */
2745         result = sony_laptop_setup_input(device);
2746         if (result) {
2747                 printk(KERN_ERR DRV_PFX
2748                                 "Unable to create input devices.\n");
2749                 goto err_free_resources;
2750         }
2751
2752         if (sonypi_compat_init())
2753                 goto err_remove_input;
2754
2755         /* request io port */
2756         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2757                 if (request_region(io->io1.minimum, io->io1.address_length,
2758                                         "Sony Programable I/O Device")) {
2759                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2760                                         io->io1.minimum, io->io1.maximum,
2761                                         io->io1.address_length);
2762                         /* Type 1 have 2 ioports */
2763                         if (io->io2.minimum) {
2764                                 if (request_region(io->io2.minimum,
2765                                                 io->io2.address_length,
2766                                                 "Sony Programable I/O Device")) {
2767                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2768                                                         io->io2.minimum, io->io2.maximum,
2769                                                         io->io2.address_length);
2770                                         spic_dev.cur_ioport = io;
2771                                         break;
2772                                 }
2773                                 else {
2774                                         dprintk("Unable to get I/O port2: "
2775                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2776                                                         io->io2.minimum, io->io2.maximum,
2777                                                         io->io2.address_length);
2778                                         release_region(io->io1.minimum,
2779                                                         io->io1.address_length);
2780                                 }
2781                         }
2782                         else {
2783                                 spic_dev.cur_ioport = io;
2784                                 break;
2785                         }
2786                 }
2787         }
2788         if (!spic_dev.cur_ioport) {
2789                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2790                 result = -ENODEV;
2791                 goto err_remove_compat;
2792         }
2793
2794         /* request IRQ */
2795         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2796                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2797                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
2798                         dprintk("IRQ: %d - triggering: %d - "
2799                                         "polarity: %d - shr: %d\n",
2800                                         irq->irq.interrupts[0],
2801                                         irq->irq.triggering,
2802                                         irq->irq.polarity,
2803                                         irq->irq.sharable);
2804                         spic_dev.cur_irq = irq;
2805                         break;
2806                 }
2807         }
2808         if (!spic_dev.cur_irq) {
2809                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2810                 result = -ENODEV;
2811                 goto err_release_region;
2812         }
2813
2814         /* set resource status _SRS */
2815         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2816         if (result) {
2817                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2818                 goto err_free_irq;
2819         }
2820
2821         spic_dev.bluetooth_power = -1;
2822         /* create device attributes */
2823         result = sony_pf_add();
2824         if (result)
2825                 goto err_disable_device;
2826
2827         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2828         if (result)
2829                 goto err_remove_pf;
2830
2831         return 0;
2832
2833 err_remove_pf:
2834         sony_pf_remove();
2835
2836 err_disable_device:
2837         sony_pic_disable(device);
2838
2839 err_free_irq:
2840         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2841
2842 err_release_region:
2843         release_region(spic_dev.cur_ioport->io1.minimum,
2844                         spic_dev.cur_ioport->io1.address_length);
2845         if (spic_dev.cur_ioport->io2.minimum)
2846                 release_region(spic_dev.cur_ioport->io2.minimum,
2847                                 spic_dev.cur_ioport->io2.address_length);
2848
2849 err_remove_compat:
2850         sonypi_compat_exit();
2851
2852 err_remove_input:
2853         sony_laptop_remove_input();
2854
2855 err_free_resources:
2856         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2857                 list_del(&io->list);
2858                 kfree(io);
2859         }
2860         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2861                 list_del(&irq->list);
2862                 kfree(irq);
2863         }
2864         spic_dev.cur_ioport = NULL;
2865         spic_dev.cur_irq = NULL;
2866
2867         return result;
2868 }
2869
2870 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2871 {
2872         if (sony_pic_disable(device))
2873                 return -ENXIO;
2874         return 0;
2875 }
2876
2877 static int sony_pic_resume(struct acpi_device *device)
2878 {
2879         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2880         return 0;
2881 }
2882
2883 static const struct acpi_device_id sony_pic_device_ids[] = {
2884         {SONY_PIC_HID, 0},
2885         {"", 0},
2886 };
2887
2888 static struct acpi_driver sony_pic_driver = {
2889         .name = SONY_PIC_DRIVER_NAME,
2890         .class = SONY_PIC_CLASS,
2891         .ids = sony_pic_device_ids,
2892         .owner = THIS_MODULE,
2893         .ops = {
2894                 .add = sony_pic_add,
2895                 .remove = sony_pic_remove,
2896                 .suspend = sony_pic_suspend,
2897                 .resume = sony_pic_resume,
2898                 },
2899 };
2900
2901 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2902         {
2903                 .ident = "Sony Vaio",
2904                 .matches = {
2905                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2906                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2907                 },
2908         },
2909         {
2910                 .ident = "Sony Vaio",
2911                 .matches = {
2912                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2913                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2914                 },
2915         },
2916         { }
2917 };
2918
2919 static int __init sony_laptop_init(void)
2920 {
2921         int result;
2922
2923         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2924                 result = acpi_bus_register_driver(&sony_pic_driver);
2925                 if (result) {
2926                         printk(KERN_ERR DRV_PFX
2927                                         "Unable to register SPIC driver.");
2928                         goto out;
2929                 }
2930                 spic_drv_registered = 1;
2931         }
2932
2933         result = acpi_bus_register_driver(&sony_nc_driver);
2934         if (result) {
2935                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2936                 goto out_unregister_pic;
2937         }
2938
2939         return 0;
2940
2941 out_unregister_pic:
2942         if (spic_drv_registered)
2943                 acpi_bus_unregister_driver(&sony_pic_driver);
2944 out:
2945         return result;
2946 }
2947
2948 static void __exit sony_laptop_exit(void)
2949 {
2950         acpi_bus_unregister_driver(&sony_nc_driver);
2951         if (spic_drv_registered)
2952                 acpi_bus_unregister_driver(&sony_pic_driver);
2953 }
2954
2955 module_init(sony_laptop_init);
2956 module_exit(sony_laptop_exit);