1144686a33f5dcda31a6d027a1f1cd56d8cb0376
[sfrench/cifs-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 int sony_rfkill_handle;
135 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
136 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
137 static void sony_nc_rfkill_update(void);
138
139 /*********** Input Devices ***********/
140
141 #define SONY_LAPTOP_BUF_SIZE    128
142 struct sony_laptop_input_s {
143         atomic_t                users;
144         struct input_dev        *jog_dev;
145         struct input_dev        *key_dev;
146         struct kfifo            *fifo;
147         spinlock_t              fifo_lock;
148         struct workqueue_struct *wq;
149 };
150
151 static struct sony_laptop_input_s sony_laptop_input = {
152         .users = ATOMIC_INIT(0),
153 };
154
155 struct sony_laptop_keypress {
156         struct input_dev *dev;
157         int key;
158 };
159
160 /* Correspondance table between sonypi events
161  * and input layer indexes in the keymap
162  */
163 static int sony_laptop_input_index[] = {
164         -1,     /*  0 no event */
165         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
166         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
167         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
168         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
169         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
170         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
171          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
172          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
173          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
174          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
175          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
176          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
177          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
178          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
179          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
180          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
181         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
182         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
183         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
184         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
185         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
186         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
187         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
188         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
189         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
190         19,     /* 26 SONYPI_EVENT_FNKEY_D */
191         20,     /* 27 SONYPI_EVENT_FNKEY_E */
192         21,     /* 28 SONYPI_EVENT_FNKEY_F */
193         22,     /* 29 SONYPI_EVENT_FNKEY_S */
194         23,     /* 30 SONYPI_EVENT_FNKEY_B */
195         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
196         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
197         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
198         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
199         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
200         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
201         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
202         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
203         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
204         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
205         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
206         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
207         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
208         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
209         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
210         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
211         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
212         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
213         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
214         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
215         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
216         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
217         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
218         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
219         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
220         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
221         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
222         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
223         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
224         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
225         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
226         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
227         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
228         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
229         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
230         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
231         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
232         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
233         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
234         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
235         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
236         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
237 };
238
239 static int sony_laptop_input_keycode_map[] = {
240         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
241         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
242         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
243         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
244         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
245         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
246         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
247         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
248         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
249         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
250         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
251         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
252         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
253         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
254         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
255         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
256         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
257         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
258         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
259         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
260         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
261         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
262         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
263         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
264         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
265         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
266         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
267         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
268         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
269         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
270         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
271         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
272         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
273         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
274         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
275         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
276         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
277         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
278         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
279         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
280         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
281         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
282         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
283         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
284         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
285         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
286         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
287         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
288         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
289         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
290         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
291         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
292         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
293         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
294         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
295         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
296         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
297         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
298         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
299 };
300
301 /* release buttons after a short delay if pressed */
302 static void do_sony_laptop_release_key(struct work_struct *work)
303 {
304         struct sony_laptop_keypress kp;
305
306         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
307                          sizeof(kp)) == sizeof(kp)) {
308                 msleep(10);
309                 input_report_key(kp.dev, kp.key, 0);
310                 input_sync(kp.dev);
311         }
312 }
313 static DECLARE_WORK(sony_laptop_release_key_work,
314                 do_sony_laptop_release_key);
315
316 /* forward event to the input subsystem */
317 static void sony_laptop_report_input_event(u8 event)
318 {
319         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
320         struct input_dev *key_dev = sony_laptop_input.key_dev;
321         struct sony_laptop_keypress kp = { NULL };
322
323         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
324                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
325                 /* Nothing, not all VAIOs generate this event */
326                 return;
327         }
328
329         /* report events */
330         switch (event) {
331         /* jog_dev events */
332         case SONYPI_EVENT_JOGDIAL_UP:
333         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
334                 input_report_rel(jog_dev, REL_WHEEL, 1);
335                 input_sync(jog_dev);
336                 return;
337
338         case SONYPI_EVENT_JOGDIAL_DOWN:
339         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
340                 input_report_rel(jog_dev, REL_WHEEL, -1);
341                 input_sync(jog_dev);
342                 return;
343
344         /* key_dev events */
345         case SONYPI_EVENT_JOGDIAL_PRESSED:
346                 kp.key = BTN_MIDDLE;
347                 kp.dev = jog_dev;
348                 break;
349
350         default:
351                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
352                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
353                         break;
354                 }
355                 if (sony_laptop_input_index[event] != -1) {
356                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
357                         if (kp.key != KEY_UNKNOWN)
358                                 kp.dev = key_dev;
359                 }
360                 break;
361         }
362
363         if (kp.dev) {
364                 input_report_key(kp.dev, kp.key, 1);
365                 /* we emit the scancode so we can always remap the key */
366                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
367                 input_sync(kp.dev);
368                 kfifo_put(sony_laptop_input.fifo,
369                           (unsigned char *)&kp, sizeof(kp));
370
371                 if (!work_pending(&sony_laptop_release_key_work))
372                         queue_work(sony_laptop_input.wq,
373                                         &sony_laptop_release_key_work);
374         } else
375                 dprintk("unknown input event %.2x\n", event);
376 }
377
378 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
379 {
380         struct input_dev *jog_dev;
381         struct input_dev *key_dev;
382         int i;
383         int error;
384
385         /* don't run again if already initialized */
386         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
387                 return 0;
388
389         /* kfifo */
390         spin_lock_init(&sony_laptop_input.fifo_lock);
391         sony_laptop_input.fifo =
392                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
393                             &sony_laptop_input.fifo_lock);
394         if (IS_ERR(sony_laptop_input.fifo)) {
395                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
396                 error = PTR_ERR(sony_laptop_input.fifo);
397                 goto err_dec_users;
398         }
399
400         /* init workqueue */
401         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
402         if (!sony_laptop_input.wq) {
403                 printk(KERN_ERR DRV_PFX
404                                 "Unable to create workqueue.\n");
405                 error = -ENXIO;
406                 goto err_free_kfifo;
407         }
408
409         /* input keys */
410         key_dev = input_allocate_device();
411         if (!key_dev) {
412                 error = -ENOMEM;
413                 goto err_destroy_wq;
414         }
415
416         key_dev->name = "Sony Vaio Keys";
417         key_dev->id.bustype = BUS_ISA;
418         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
419         key_dev->dev.parent = &acpi_device->dev;
420
421         /* Initialize the Input Drivers: special keys */
422         set_bit(EV_KEY, key_dev->evbit);
423         set_bit(EV_MSC, key_dev->evbit);
424         set_bit(MSC_SCAN, key_dev->mscbit);
425         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
426         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
427         key_dev->keycode = &sony_laptop_input_keycode_map;
428         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
429                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
430                         set_bit(sony_laptop_input_keycode_map[i],
431                                 key_dev->keybit);
432                 }
433         }
434
435         error = input_register_device(key_dev);
436         if (error)
437                 goto err_free_keydev;
438
439         sony_laptop_input.key_dev = key_dev;
440
441         /* jogdial */
442         jog_dev = input_allocate_device();
443         if (!jog_dev) {
444                 error = -ENOMEM;
445                 goto err_unregister_keydev;
446         }
447
448         jog_dev->name = "Sony Vaio Jogdial";
449         jog_dev->id.bustype = BUS_ISA;
450         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
451         key_dev->dev.parent = &acpi_device->dev;
452
453         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
454         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
455         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
456
457         error = input_register_device(jog_dev);
458         if (error)
459                 goto err_free_jogdev;
460
461         sony_laptop_input.jog_dev = jog_dev;
462
463         return 0;
464
465 err_free_jogdev:
466         input_free_device(jog_dev);
467
468 err_unregister_keydev:
469         input_unregister_device(key_dev);
470         /* to avoid kref underflow below at input_free_device */
471         key_dev = NULL;
472
473 err_free_keydev:
474         input_free_device(key_dev);
475
476 err_destroy_wq:
477         destroy_workqueue(sony_laptop_input.wq);
478
479 err_free_kfifo:
480         kfifo_free(sony_laptop_input.fifo);
481
482 err_dec_users:
483         atomic_dec(&sony_laptop_input.users);
484         return error;
485 }
486
487 static void sony_laptop_remove_input(void)
488 {
489         /* cleanup only after the last user has gone */
490         if (!atomic_dec_and_test(&sony_laptop_input.users))
491                 return;
492
493         /* flush workqueue first */
494         flush_workqueue(sony_laptop_input.wq);
495
496         /* destroy input devs */
497         input_unregister_device(sony_laptop_input.key_dev);
498         sony_laptop_input.key_dev = NULL;
499
500         if (sony_laptop_input.jog_dev) {
501                 input_unregister_device(sony_laptop_input.jog_dev);
502                 sony_laptop_input.jog_dev = NULL;
503         }
504
505         destroy_workqueue(sony_laptop_input.wq);
506         kfifo_free(sony_laptop_input.fifo);
507 }
508
509 /*********** Platform Device ***********/
510
511 static atomic_t sony_pf_users = ATOMIC_INIT(0);
512 static struct platform_driver sony_pf_driver = {
513         .driver = {
514                    .name = "sony-laptop",
515                    .owner = THIS_MODULE,
516                    }
517 };
518 static struct platform_device *sony_pf_device;
519
520 static int sony_pf_add(void)
521 {
522         int ret = 0;
523
524         /* don't run again if already initialized */
525         if (atomic_add_return(1, &sony_pf_users) > 1)
526                 return 0;
527
528         ret = platform_driver_register(&sony_pf_driver);
529         if (ret)
530                 goto out;
531
532         sony_pf_device = platform_device_alloc("sony-laptop", -1);
533         if (!sony_pf_device) {
534                 ret = -ENOMEM;
535                 goto out_platform_registered;
536         }
537
538         ret = platform_device_add(sony_pf_device);
539         if (ret)
540                 goto out_platform_alloced;
541
542         return 0;
543
544       out_platform_alloced:
545         platform_device_put(sony_pf_device);
546         sony_pf_device = NULL;
547       out_platform_registered:
548         platform_driver_unregister(&sony_pf_driver);
549       out:
550         atomic_dec(&sony_pf_users);
551         return ret;
552 }
553
554 static void sony_pf_remove(void)
555 {
556         /* deregister only after the last user has gone */
557         if (!atomic_dec_and_test(&sony_pf_users))
558                 return;
559
560         platform_device_del(sony_pf_device);
561         platform_device_put(sony_pf_device);
562         platform_driver_unregister(&sony_pf_driver);
563 }
564
565 /*********** SNC (SNY5001) Device ***********/
566
567 /* the device uses 1-based values, while the backlight subsystem uses
568    0-based values */
569 #define SONY_MAX_BRIGHTNESS     8
570
571 #define SNC_VALIDATE_IN         0
572 #define SNC_VALIDATE_OUT        1
573
574 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
575                               char *);
576 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
577                                const char *, size_t);
578 static int boolean_validate(const int, const int);
579 static int brightness_default_validate(const int, const int);
580
581 struct sony_nc_value {
582         char *name;             /* name of the entry */
583         char **acpiget;         /* names of the ACPI get function */
584         char **acpiset;         /* names of the ACPI set function */
585         int (*validate)(const int, const int);  /* input/output validation */
586         int value;              /* current setting */
587         int valid;              /* Has ever been set */
588         int debug;              /* active only in debug mode ? */
589         struct device_attribute devattr;        /* sysfs atribute */
590 };
591
592 #define SNC_HANDLE_NAMES(_name, _values...) \
593         static char *snc_##_name[] = { _values, NULL }
594
595 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
596         { \
597                 .name           = __stringify(_name), \
598                 .acpiget        = _getters, \
599                 .acpiset        = _setters, \
600                 .validate       = _validate, \
601                 .debug          = _debug, \
602                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
603         }
604
605 #define SNC_HANDLE_NULL { .name = NULL }
606
607 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
608
609 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
610 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
611
612 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
613 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
614
615 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
616 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
617
618 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
619 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
620
621 SNC_HANDLE_NAMES(lidstate_get, "GLID");
622
623 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
624 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
625
626 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
627 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
628
629 SNC_HANDLE_NAMES(PID_get, "GPID");
630
631 SNC_HANDLE_NAMES(CTR_get, "GCTR");
632 SNC_HANDLE_NAMES(CTR_set, "SCTR");
633
634 SNC_HANDLE_NAMES(PCR_get, "GPCR");
635 SNC_HANDLE_NAMES(PCR_set, "SPCR");
636
637 SNC_HANDLE_NAMES(CMI_get, "GCMI");
638 SNC_HANDLE_NAMES(CMI_set, "SCMI");
639
640 static struct sony_nc_value sony_nc_values[] = {
641         SNC_HANDLE(brightness_default, snc_brightness_def_get,
642                         snc_brightness_def_set, brightness_default_validate, 0),
643         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
644         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
645         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
646                         boolean_validate, 0),
647         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
648                         boolean_validate, 1),
649         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
650                         boolean_validate, 0),
651         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
652                         boolean_validate, 0),
653         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
654                         boolean_validate, 0),
655         /* unknown methods */
656         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
657         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
658         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
659         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
660         SNC_HANDLE_NULL
661 };
662
663 static acpi_handle sony_nc_acpi_handle;
664 static struct acpi_device *sony_nc_acpi_device = NULL;
665
666 /*
667  * acpi_evaluate_object wrappers
668  */
669 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
670 {
671         struct acpi_buffer output;
672         union acpi_object out_obj;
673         acpi_status status;
674
675         output.length = sizeof(out_obj);
676         output.pointer = &out_obj;
677
678         status = acpi_evaluate_object(handle, name, NULL, &output);
679         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
680                 *result = out_obj.integer.value;
681                 return 0;
682         }
683
684         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
685
686         return -1;
687 }
688
689 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
690                             int *result)
691 {
692         struct acpi_object_list params;
693         union acpi_object in_obj;
694         struct acpi_buffer output;
695         union acpi_object out_obj;
696         acpi_status status;
697
698         params.count = 1;
699         params.pointer = &in_obj;
700         in_obj.type = ACPI_TYPE_INTEGER;
701         in_obj.integer.value = value;
702
703         output.length = sizeof(out_obj);
704         output.pointer = &out_obj;
705
706         status = acpi_evaluate_object(handle, name, &params, &output);
707         if (status == AE_OK) {
708                 if (result != NULL) {
709                         if (out_obj.type != ACPI_TYPE_INTEGER) {
710                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
711                                        "return type\n");
712                                 return -1;
713                         }
714                         *result = out_obj.integer.value;
715                 }
716                 return 0;
717         }
718
719         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
720
721         return -1;
722 }
723
724 static int sony_find_snc_handle(int handle)
725 {
726         int i;
727         int result;
728
729         for (i = 0x20; i < 0x30; i++) {
730                 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
731                 if (result == handle)
732                         return i-0x20;
733         }
734
735         return -1;
736 }
737
738 static int sony_call_snc_handle(int handle, int argument, int *result)
739 {
740         int offset = sony_find_snc_handle(handle);
741
742         if (offset < 0)
743                 return -1;
744
745         return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
746                                 result);
747 }
748
749 /*
750  * sony_nc_values input/output validate functions
751  */
752
753 /* brightness_default_validate:
754  *
755  * manipulate input output values to keep consistency with the
756  * backlight framework for which brightness values are 0-based.
757  */
758 static int brightness_default_validate(const int direction, const int value)
759 {
760         switch (direction) {
761                 case SNC_VALIDATE_OUT:
762                         return value - 1;
763                 case SNC_VALIDATE_IN:
764                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
765                                 return value + 1;
766         }
767         return -EINVAL;
768 }
769
770 /* boolean_validate:
771  *
772  * on input validate boolean values 0/1, on output just pass the
773  * received value.
774  */
775 static int boolean_validate(const int direction, const int value)
776 {
777         if (direction == SNC_VALIDATE_IN) {
778                 if (value != 0 && value != 1)
779                         return -EINVAL;
780         }
781         return value;
782 }
783
784 /*
785  * Sysfs show/store common to all sony_nc_values
786  */
787 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
788                               char *buffer)
789 {
790         int value;
791         struct sony_nc_value *item =
792             container_of(attr, struct sony_nc_value, devattr);
793
794         if (!*item->acpiget)
795                 return -EIO;
796
797         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
798                 return -EIO;
799
800         if (item->validate)
801                 value = item->validate(SNC_VALIDATE_OUT, value);
802
803         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
804 }
805
806 static ssize_t sony_nc_sysfs_store(struct device *dev,
807                                struct device_attribute *attr,
808                                const char *buffer, size_t count)
809 {
810         int value;
811         struct sony_nc_value *item =
812             container_of(attr, struct sony_nc_value, devattr);
813
814         if (!item->acpiset)
815                 return -EIO;
816
817         if (count > 31)
818                 return -EINVAL;
819
820         value = simple_strtoul(buffer, NULL, 10);
821
822         if (item->validate)
823                 value = item->validate(SNC_VALIDATE_IN, value);
824
825         if (value < 0)
826                 return value;
827
828         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
829                 return -EIO;
830         item->value = value;
831         item->valid = 1;
832         return count;
833 }
834
835
836 /*
837  * Backlight device
838  */
839 static int sony_backlight_update_status(struct backlight_device *bd)
840 {
841         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
842                                 bd->props.brightness + 1, NULL);
843 }
844
845 static int sony_backlight_get_brightness(struct backlight_device *bd)
846 {
847         int value;
848
849         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
850                 return 0;
851         /* brightness levels are 1-based, while backlight ones are 0-based */
852         return value - 1;
853 }
854
855 static struct backlight_device *sony_backlight_device;
856 static struct backlight_ops sony_backlight_ops = {
857         .update_status = sony_backlight_update_status,
858         .get_brightness = sony_backlight_get_brightness,
859 };
860
861 /*
862  * New SNC-only Vaios event mapping to driver known keys
863  */
864 struct sony_nc_event {
865         u8      data;
866         u8      event;
867 };
868
869 static struct sony_nc_event sony_100_events[] = {
870         { 0x90, SONYPI_EVENT_PKEY_P1 },
871         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
872         { 0x91, SONYPI_EVENT_PKEY_P2 },
873         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
874         { 0x81, SONYPI_EVENT_FNKEY_F1 },
875         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
876         { 0x82, SONYPI_EVENT_FNKEY_F2 },
877         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
878         { 0x83, SONYPI_EVENT_FNKEY_F3 },
879         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
880         { 0x84, SONYPI_EVENT_FNKEY_F4 },
881         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
882         { 0x85, SONYPI_EVENT_FNKEY_F5 },
883         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
884         { 0x86, SONYPI_EVENT_FNKEY_F6 },
885         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
886         { 0x87, SONYPI_EVENT_FNKEY_F7 },
887         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
888         { 0x89, SONYPI_EVENT_FNKEY_F9 },
889         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
890         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
891         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
892         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
893         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
894         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
895         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
896         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
897         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
898         { 0, 0 },
899 };
900
901 static struct sony_nc_event sony_127_events[] = {
902         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
903         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
904         { 0x82, SONYPI_EVENT_PKEY_P1 },
905         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
906         { 0x83, SONYPI_EVENT_PKEY_P2 },
907         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
908         { 0x84, SONYPI_EVENT_PKEY_P3 },
909         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
910         { 0x85, SONYPI_EVENT_PKEY_P4 },
911         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
912         { 0x86, SONYPI_EVENT_PKEY_P5 },
913         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
914         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
915         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
916         { 0, 0 },
917 };
918
919 /*
920  * ACPI callbacks
921  */
922 static void sony_nc_notify(struct acpi_device *device, u32 event)
923 {
924         u32 ev = event;
925
926         if (ev >= 0x90) {
927                 /* New-style event */
928                 int result;
929                 int key_handle = 0;
930                 ev -= 0x90;
931
932                 if (sony_find_snc_handle(0x100) == ev)
933                         key_handle = 0x100;
934                 if (sony_find_snc_handle(0x127) == ev)
935                         key_handle = 0x127;
936
937                 if (key_handle) {
938                         struct sony_nc_event *key_event;
939
940                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
941                                 dprintk("sony_nc_notify, unable to decode"
942                                         " event 0x%.2x 0x%.2x\n", key_handle,
943                                         ev);
944                                 /* restore the original event */
945                                 ev = event;
946                         } else {
947                                 ev = result & 0xFF;
948
949                                 if (key_handle == 0x100)
950                                         key_event = sony_100_events;
951                                 else
952                                         key_event = sony_127_events;
953
954                                 for (; key_event->data; key_event++) {
955                                         if (key_event->data == ev) {
956                                                 ev = key_event->event;
957                                                 break;
958                                         }
959                                 }
960
961                                 if (!key_event->data)
962                                         printk(KERN_INFO DRV_PFX
963                                                         "Unknown event: 0x%x 0x%x\n",
964                                                         key_handle,
965                                                         ev);
966                                 else
967                                         sony_laptop_report_input_event(ev);
968                         }
969                 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
970                         sony_nc_rfkill_update();
971                         return;
972                 }
973         } else
974                 sony_laptop_report_input_event(ev);
975
976         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
977         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
978 }
979
980 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
981                                       void *context, void **return_value)
982 {
983         struct acpi_device_info *info;
984
985         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
986                 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
987                         (char *)&info->name, info->param_count);
988
989                 kfree(info);
990         }
991
992         return AE_OK;
993 }
994
995 /*
996  * ACPI device
997  */
998 static int sony_nc_function_setup(struct acpi_device *device)
999 {
1000         int result;
1001
1002         /* Enable all events */
1003         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1004
1005         /* Setup hotkeys */
1006         sony_call_snc_handle(0x0100, 0, &result);
1007         sony_call_snc_handle(0x0101, 0, &result);
1008         sony_call_snc_handle(0x0102, 0x100, &result);
1009         sony_call_snc_handle(0x0127, 0, &result);
1010
1011         return 0;
1012 }
1013
1014 static int sony_nc_resume(struct acpi_device *device)
1015 {
1016         struct sony_nc_value *item;
1017         acpi_handle handle;
1018
1019         for (item = sony_nc_values; item->name; item++) {
1020                 int ret;
1021
1022                 if (!item->valid)
1023                         continue;
1024                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1025                                        item->value, NULL);
1026                 if (ret < 0) {
1027                         printk("%s: %d\n", __func__, ret);
1028                         break;
1029                 }
1030         }
1031
1032         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1033                                          &handle))) {
1034                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1035                         dprintk("ECON Method failed\n");
1036         }
1037
1038         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1039                                          &handle))) {
1040                 dprintk("Doing SNC setup\n");
1041                 sony_nc_function_setup(device);
1042         }
1043
1044         /* set the last requested brightness level */
1045         if (sony_backlight_device &&
1046                         sony_backlight_update_status(sony_backlight_device) < 0)
1047                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1048
1049         /* re-read rfkill state */
1050         sony_nc_rfkill_update();
1051
1052         return 0;
1053 }
1054
1055 static void sony_nc_rfkill_cleanup(void)
1056 {
1057         int i;
1058
1059         for (i = 0; i < N_SONY_RFKILL; i++) {
1060                 if (sony_rfkill_devices[i]) {
1061                         rfkill_unregister(sony_rfkill_devices[i]);
1062                         rfkill_destroy(sony_rfkill_devices[i]);
1063                 }
1064         }
1065 }
1066
1067 static int sony_nc_rfkill_set(void *data, bool blocked)
1068 {
1069         int result;
1070         int argument = sony_rfkill_address[(long) data] + 0x100;
1071
1072         if (!blocked)
1073                 argument |= 0xff0000;
1074
1075         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1076 }
1077
1078 static const struct rfkill_ops sony_rfkill_ops = {
1079         .set_block = sony_nc_rfkill_set,
1080 };
1081
1082 static int sony_nc_setup_rfkill(struct acpi_device *device,
1083                                 enum sony_nc_rfkill nc_type)
1084 {
1085         int err = 0;
1086         struct rfkill *rfk;
1087         enum rfkill_type type;
1088         const char *name;
1089         int result;
1090         bool hwblock;
1091
1092         switch (nc_type) {
1093         case SONY_WIFI:
1094                 type = RFKILL_TYPE_WLAN;
1095                 name = "sony-wifi";
1096                 break;
1097         case SONY_BLUETOOTH:
1098                 type = RFKILL_TYPE_BLUETOOTH;
1099                 name = "sony-bluetooth";
1100                 break;
1101         case SONY_WWAN:
1102                 type = RFKILL_TYPE_WWAN;
1103                 name = "sony-wwan";
1104                 break;
1105         case SONY_WIMAX:
1106                 type = RFKILL_TYPE_WIMAX;
1107                 name = "sony-wimax";
1108                 break;
1109         default:
1110                 return -EINVAL;
1111         }
1112
1113         rfk = rfkill_alloc(name, &device->dev, type,
1114                            &sony_rfkill_ops, (void *)nc_type);
1115         if (!rfk)
1116                 return -ENOMEM;
1117
1118         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1119         hwblock = !(result & 0x1);
1120         rfkill_set_hw_state(rfk, hwblock);
1121
1122         err = rfkill_register(rfk);
1123         if (err) {
1124                 rfkill_destroy(rfk);
1125                 return err;
1126         }
1127         sony_rfkill_devices[nc_type] = rfk;
1128         return err;
1129 }
1130
1131 static void sony_nc_rfkill_update()
1132 {
1133         enum sony_nc_rfkill i;
1134         int result;
1135         bool hwblock;
1136
1137         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1138         hwblock = !(result & 0x1);
1139
1140         for (i = 0; i < N_SONY_RFKILL; i++) {
1141                 int argument = sony_rfkill_address[i];
1142
1143                 if (!sony_rfkill_devices[i])
1144                         continue;
1145
1146                 if (hwblock) {
1147                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1148                                 /* we already know we're blocked */
1149                         }
1150                         continue;
1151                 }
1152
1153                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1154                 rfkill_set_states(sony_rfkill_devices[i],
1155                                   !(result & 0xf), false);
1156         }
1157 }
1158
1159 static int sony_nc_rfkill_setup(struct acpi_device *device)
1160 {
1161         int result, ret;
1162
1163         if (sony_find_snc_handle(0x124) == -1) {
1164                 if (sony_find_snc_handle(0x135) == -1)
1165                         return -1;
1166                 else
1167                         sony_rfkill_handle = 0x135;
1168         } else
1169                 sony_rfkill_handle = 0x124;
1170
1171         ret = sony_call_snc_handle(sony_rfkill_handle, 0xb00, &result);
1172         if (ret) {
1173                 printk(KERN_INFO DRV_PFX
1174                        "Unable to enumerate rfkill devices: %x\n", ret);
1175                 return ret;
1176         }
1177
1178         if (result & 0x1)
1179                 sony_nc_setup_rfkill(device, SONY_WIFI);
1180         if (result & 0x2)
1181                 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1182         if (result & 0x1c)
1183                 sony_nc_setup_rfkill(device, SONY_WWAN);
1184         if (result & 0x20)
1185                 sony_nc_setup_rfkill(device, SONY_WIMAX);
1186
1187         return 0;
1188 }
1189
1190 static int sony_nc_add(struct acpi_device *device)
1191 {
1192         acpi_status status;
1193         int result = 0;
1194         acpi_handle handle;
1195         struct sony_nc_value *item;
1196
1197         printk(KERN_INFO DRV_PFX "%s v%s.\n",
1198                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1199
1200         sony_nc_acpi_device = device;
1201         strcpy(acpi_device_class(device), "sony/hotkey");
1202
1203         sony_nc_acpi_handle = device->handle;
1204
1205         /* read device status */
1206         result = acpi_bus_get_status(device);
1207         /* bail IFF the above call was successful and the device is not present */
1208         if (!result && !device->status.present) {
1209                 dprintk("Device not present\n");
1210                 result = -ENODEV;
1211                 goto outwalk;
1212         }
1213
1214         if (debug) {
1215                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1216                                              1, sony_walk_callback, NULL, NULL);
1217                 if (ACPI_FAILURE(status)) {
1218                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1219                         result = -ENODEV;
1220                         goto outwalk;
1221                 }
1222         }
1223
1224         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1225                                          &handle))) {
1226                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1227                         dprintk("ECON Method failed\n");
1228         }
1229
1230         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1231                                          &handle))) {
1232                 dprintk("Doing SNC setup\n");
1233                 sony_nc_function_setup(device);
1234                 sony_nc_rfkill_setup(device);
1235         }
1236
1237         /* setup input devices and helper fifo */
1238         result = sony_laptop_setup_input(device);
1239         if (result) {
1240                 printk(KERN_ERR DRV_PFX
1241                                 "Unable to create input devices.\n");
1242                 goto outwalk;
1243         }
1244
1245         if (acpi_video_backlight_support()) {
1246                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1247                        "controlled by ACPI video driver\n");
1248         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1249                                                 &handle))) {
1250                 sony_backlight_device = backlight_device_register("sony", NULL,
1251                                                                   NULL,
1252                                                                   &sony_backlight_ops);
1253
1254                 if (IS_ERR(sony_backlight_device)) {
1255                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1256                         sony_backlight_device = NULL;
1257                 } else {
1258                         sony_backlight_device->props.brightness =
1259                             sony_backlight_get_brightness
1260                             (sony_backlight_device);
1261                         sony_backlight_device->props.max_brightness =
1262                             SONY_MAX_BRIGHTNESS - 1;
1263                 }
1264
1265         }
1266
1267         result = sony_pf_add();
1268         if (result)
1269                 goto outbacklight;
1270
1271         /* create sony_pf sysfs attributes related to the SNC device */
1272         for (item = sony_nc_values; item->name; ++item) {
1273
1274                 if (!debug && item->debug)
1275                         continue;
1276
1277                 /* find the available acpiget as described in the DSDT */
1278                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1279                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1280                                                          *item->acpiget,
1281                                                          &handle))) {
1282                                 dprintk("Found %s getter: %s\n",
1283                                                 item->name, *item->acpiget);
1284                                 item->devattr.attr.mode |= S_IRUGO;
1285                                 break;
1286                         }
1287                 }
1288
1289                 /* find the available acpiset as described in the DSDT */
1290                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1291                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1292                                                          *item->acpiset,
1293                                                          &handle))) {
1294                                 dprintk("Found %s setter: %s\n",
1295                                                 item->name, *item->acpiset);
1296                                 item->devattr.attr.mode |= S_IWUSR;
1297                                 break;
1298                         }
1299                 }
1300
1301                 if (item->devattr.attr.mode != 0) {
1302                         result =
1303                             device_create_file(&sony_pf_device->dev,
1304                                                &item->devattr);
1305                         if (result)
1306                                 goto out_sysfs;
1307                 }
1308         }
1309
1310         return 0;
1311
1312       out_sysfs:
1313         for (item = sony_nc_values; item->name; ++item) {
1314                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1315         }
1316         sony_pf_remove();
1317
1318       outbacklight:
1319         if (sony_backlight_device)
1320                 backlight_device_unregister(sony_backlight_device);
1321
1322         sony_laptop_remove_input();
1323
1324       outwalk:
1325         sony_nc_rfkill_cleanup();
1326         return result;
1327 }
1328
1329 static int sony_nc_remove(struct acpi_device *device, int type)
1330 {
1331         struct sony_nc_value *item;
1332
1333         if (sony_backlight_device)
1334                 backlight_device_unregister(sony_backlight_device);
1335
1336         sony_nc_acpi_device = NULL;
1337
1338         for (item = sony_nc_values; item->name; ++item) {
1339                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1340         }
1341
1342         sony_pf_remove();
1343         sony_laptop_remove_input();
1344         sony_nc_rfkill_cleanup();
1345         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1346
1347         return 0;
1348 }
1349
1350 static const struct acpi_device_id sony_device_ids[] = {
1351         {SONY_NC_HID, 0},
1352         {SONY_PIC_HID, 0},
1353         {"", 0},
1354 };
1355 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1356
1357 static const struct acpi_device_id sony_nc_device_ids[] = {
1358         {SONY_NC_HID, 0},
1359         {"", 0},
1360 };
1361
1362 static struct acpi_driver sony_nc_driver = {
1363         .name = SONY_NC_DRIVER_NAME,
1364         .class = SONY_NC_CLASS,
1365         .ids = sony_nc_device_ids,
1366         .owner = THIS_MODULE,
1367         .ops = {
1368                 .add = sony_nc_add,
1369                 .remove = sony_nc_remove,
1370                 .resume = sony_nc_resume,
1371                 .notify = sony_nc_notify,
1372                 },
1373 };
1374
1375 /*********** SPIC (SNY6001) Device ***********/
1376
1377 #define SONYPI_DEVICE_TYPE1     0x00000001
1378 #define SONYPI_DEVICE_TYPE2     0x00000002
1379 #define SONYPI_DEVICE_TYPE3     0x00000004
1380 #define SONYPI_DEVICE_TYPE4     0x00000008
1381
1382 #define SONYPI_TYPE1_OFFSET     0x04
1383 #define SONYPI_TYPE2_OFFSET     0x12
1384 #define SONYPI_TYPE3_OFFSET     0x12
1385
1386 struct sony_pic_ioport {
1387         struct acpi_resource_io io1;
1388         struct acpi_resource_io io2;
1389         struct list_head        list;
1390 };
1391
1392 struct sony_pic_irq {
1393         struct acpi_resource_irq        irq;
1394         struct list_head                list;
1395 };
1396
1397 struct sonypi_eventtypes {
1398         u8                      data;
1399         unsigned long           mask;
1400         struct sonypi_event     *events;
1401 };
1402
1403 struct sony_pic_dev {
1404         struct acpi_device              *acpi_dev;
1405         struct sony_pic_irq             *cur_irq;
1406         struct sony_pic_ioport          *cur_ioport;
1407         struct list_head                interrupts;
1408         struct list_head                ioports;
1409         struct mutex                    lock;
1410         struct sonypi_eventtypes        *event_types;
1411         int                             (*handle_irq)(const u8, const u8);
1412         int                             model;
1413         u16                             evport_offset;
1414         u8                              camera_power;
1415         u8                              bluetooth_power;
1416         u8                              wwan_power;
1417 };
1418
1419 static struct sony_pic_dev spic_dev = {
1420         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1421         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1422 };
1423
1424 static int spic_drv_registered;
1425
1426 /* Event masks */
1427 #define SONYPI_JOGGER_MASK                      0x00000001
1428 #define SONYPI_CAPTURE_MASK                     0x00000002
1429 #define SONYPI_FNKEY_MASK                       0x00000004
1430 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1431 #define SONYPI_PKEY_MASK                        0x00000010
1432 #define SONYPI_BACK_MASK                        0x00000020
1433 #define SONYPI_HELP_MASK                        0x00000040
1434 #define SONYPI_LID_MASK                         0x00000080
1435 #define SONYPI_ZOOM_MASK                        0x00000100
1436 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1437 #define SONYPI_MEYE_MASK                        0x00000400
1438 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1439 #define SONYPI_BATTERY_MASK                     0x00001000
1440 #define SONYPI_WIRELESS_MASK                    0x00002000
1441
1442 struct sonypi_event {
1443         u8      data;
1444         u8      event;
1445 };
1446
1447 /* The set of possible button release events */
1448 static struct sonypi_event sonypi_releaseev[] = {
1449         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1450         { 0, 0 }
1451 };
1452
1453 /* The set of possible jogger events  */
1454 static struct sonypi_event sonypi_joggerev[] = {
1455         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1456         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1457         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1458         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1459         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1460         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1461         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1462         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1463         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1464         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1465         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1466         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1467         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1468         { 0, 0 }
1469 };
1470
1471 /* The set of possible capture button events */
1472 static struct sonypi_event sonypi_captureev[] = {
1473         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1474         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1475         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1476         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1477         { 0, 0 }
1478 };
1479
1480 /* The set of possible fnkeys events */
1481 static struct sonypi_event sonypi_fnkeyev[] = {
1482         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1483         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1484         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1485         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1486         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1487         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1488         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1489         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1490         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1491         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1492         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1493         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1494         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1495         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1496         { 0x21, SONYPI_EVENT_FNKEY_1 },
1497         { 0x22, SONYPI_EVENT_FNKEY_2 },
1498         { 0x31, SONYPI_EVENT_FNKEY_D },
1499         { 0x32, SONYPI_EVENT_FNKEY_E },
1500         { 0x33, SONYPI_EVENT_FNKEY_F },
1501         { 0x34, SONYPI_EVENT_FNKEY_S },
1502         { 0x35, SONYPI_EVENT_FNKEY_B },
1503         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1504         { 0, 0 }
1505 };
1506
1507 /* The set of possible program key events */
1508 static struct sonypi_event sonypi_pkeyev[] = {
1509         { 0x01, SONYPI_EVENT_PKEY_P1 },
1510         { 0x02, SONYPI_EVENT_PKEY_P2 },
1511         { 0x04, SONYPI_EVENT_PKEY_P3 },
1512         { 0x20, SONYPI_EVENT_PKEY_P1 },
1513         { 0, 0 }
1514 };
1515
1516 /* The set of possible bluetooth events */
1517 static struct sonypi_event sonypi_blueev[] = {
1518         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1519         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1520         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1521         { 0, 0 }
1522 };
1523
1524 /* The set of possible wireless events */
1525 static struct sonypi_event sonypi_wlessev[] = {
1526         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1527         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1528         { 0, 0 }
1529 };
1530
1531 /* The set of possible back button events */
1532 static struct sonypi_event sonypi_backev[] = {
1533         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1534         { 0, 0 }
1535 };
1536
1537 /* The set of possible help button events */
1538 static struct sonypi_event sonypi_helpev[] = {
1539         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1540         { 0, 0 }
1541 };
1542
1543
1544 /* The set of possible lid events */
1545 static struct sonypi_event sonypi_lidev[] = {
1546         { 0x51, SONYPI_EVENT_LID_CLOSED },
1547         { 0x50, SONYPI_EVENT_LID_OPENED },
1548         { 0, 0 }
1549 };
1550
1551 /* The set of possible zoom events */
1552 static struct sonypi_event sonypi_zoomev[] = {
1553         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1554         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1555         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1556         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1557         { 0, 0 }
1558 };
1559
1560 /* The set of possible thumbphrase events */
1561 static struct sonypi_event sonypi_thumbphraseev[] = {
1562         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1563         { 0, 0 }
1564 };
1565
1566 /* The set of possible motioneye camera events */
1567 static struct sonypi_event sonypi_meyeev[] = {
1568         { 0x00, SONYPI_EVENT_MEYE_FACE },
1569         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1570         { 0, 0 }
1571 };
1572
1573 /* The set of possible memorystick events */
1574 static struct sonypi_event sonypi_memorystickev[] = {
1575         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1576         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1577         { 0, 0 }
1578 };
1579
1580 /* The set of possible battery events */
1581 static struct sonypi_event sonypi_batteryev[] = {
1582         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1583         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1584         { 0, 0 }
1585 };
1586
1587 /* The set of possible volume events */
1588 static struct sonypi_event sonypi_volumeev[] = {
1589         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1590         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1591         { 0, 0 }
1592 };
1593
1594 /* The set of possible brightness events */
1595 static struct sonypi_event sonypi_brightnessev[] = {
1596         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1597         { 0, 0 }
1598 };
1599
1600 static struct sonypi_eventtypes type1_events[] = {
1601         { 0, 0xffffffff, sonypi_releaseev },
1602         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1603         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1604         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1605         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1606         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1607         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1608         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1609         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1610         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1611         { 0 },
1612 };
1613 static struct sonypi_eventtypes type2_events[] = {
1614         { 0, 0xffffffff, sonypi_releaseev },
1615         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1616         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1617         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1618         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1619         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1620         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1621         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1622         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1623         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1624         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1625         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1626         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1627         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1628         { 0 },
1629 };
1630 static struct sonypi_eventtypes type3_events[] = {
1631         { 0, 0xffffffff, sonypi_releaseev },
1632         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1633         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1634         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1635         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1636         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1637         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1638         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1639         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1640         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1641         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1642         { 0 },
1643 };
1644
1645 /* low level spic calls */
1646 #define ITERATIONS_LONG         10000
1647 #define ITERATIONS_SHORT        10
1648 #define wait_on_command(command, iterations) {                          \
1649         unsigned int n = iterations;                                    \
1650         while (--n && (command))                                        \
1651                 udelay(1);                                              \
1652         if (!n)                                                         \
1653                 dprintk("command failed at %s : %s (line %d)\n",        \
1654                                 __FILE__, __func__, __LINE__);  \
1655 }
1656
1657 static u8 sony_pic_call1(u8 dev)
1658 {
1659         u8 v1, v2;
1660
1661         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1662                         ITERATIONS_LONG);
1663         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1664         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1665         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1666         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1667         return v2;
1668 }
1669
1670 static u8 sony_pic_call2(u8 dev, u8 fn)
1671 {
1672         u8 v1;
1673
1674         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1675                         ITERATIONS_LONG);
1676         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1677         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1678                         ITERATIONS_LONG);
1679         outb(fn, spic_dev.cur_ioport->io1.minimum);
1680         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1681         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1682         return v1;
1683 }
1684
1685 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1686 {
1687         u8 v1;
1688
1689         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1690         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1691         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1692         outb(fn, spic_dev.cur_ioport->io1.minimum);
1693         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1694         outb(v, spic_dev.cur_ioport->io1.minimum);
1695         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1696         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1697                         dev, fn, v, v1);
1698         return v1;
1699 }
1700
1701 /*
1702  * minidrivers for SPIC models
1703  */
1704 static int type3_handle_irq(const u8 data_mask, const u8 ev)
1705 {
1706         /*
1707          * 0x31 could mean we have to take some extra action and wait for
1708          * the next irq for some Type3 models, it will generate a new
1709          * irq and we can read new data from the device:
1710          *  - 0x5c and 0x5f requires 0xA0
1711          *  - 0x61 requires 0xB3
1712          */
1713         if (data_mask == 0x31) {
1714                 if (ev == 0x5c || ev == 0x5f)
1715                         sony_pic_call1(0xA0);
1716                 else if (ev == 0x61)
1717                         sony_pic_call1(0xB3);
1718                 return 0;
1719         }
1720         return 1;
1721 }
1722
1723 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1724 {
1725         struct pci_dev *pcidev;
1726
1727         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1728                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1729         if (pcidev) {
1730                 dev->model = SONYPI_DEVICE_TYPE1;
1731                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
1732                 dev->event_types = type1_events;
1733                 goto out;
1734         }
1735
1736         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1737                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1738         if (pcidev) {
1739                 dev->model = SONYPI_DEVICE_TYPE2;
1740                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1741                 dev->event_types = type2_events;
1742                 goto out;
1743         }
1744
1745         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1746                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1747         if (pcidev) {
1748                 dev->model = SONYPI_DEVICE_TYPE3;
1749                 dev->handle_irq = type3_handle_irq;
1750                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1751                 dev->event_types = type3_events;
1752                 goto out;
1753         }
1754
1755         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1756                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1757         if (pcidev) {
1758                 dev->model = SONYPI_DEVICE_TYPE3;
1759                 dev->handle_irq = type3_handle_irq;
1760                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1761                 dev->event_types = type3_events;
1762                 goto out;
1763         }
1764
1765         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1766                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1767         if (pcidev) {
1768                 dev->model = SONYPI_DEVICE_TYPE3;
1769                 dev->handle_irq = type3_handle_irq;
1770                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1771                 dev->event_types = type3_events;
1772                 goto out;
1773         }
1774
1775         /* default */
1776         dev->model = SONYPI_DEVICE_TYPE2;
1777         dev->evport_offset = SONYPI_TYPE2_OFFSET;
1778         dev->event_types = type2_events;
1779
1780 out:
1781         if (pcidev)
1782                 pci_dev_put(pcidev);
1783
1784         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1785                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
1786                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1787 }
1788
1789 /* camera tests and poweron/poweroff */
1790 #define SONYPI_CAMERA_PICTURE           5
1791 #define SONYPI_CAMERA_CONTROL           0x10
1792
1793 #define SONYPI_CAMERA_BRIGHTNESS                0
1794 #define SONYPI_CAMERA_CONTRAST                  1
1795 #define SONYPI_CAMERA_HUE                       2
1796 #define SONYPI_CAMERA_COLOR                     3
1797 #define SONYPI_CAMERA_SHARPNESS                 4
1798
1799 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1800 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1801 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1802 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1803
1804 /* the rest don't need a loop until not 0xff */
1805 #define SONYPI_CAMERA_AGC                       6
1806 #define SONYPI_CAMERA_AGC_MASK                  0x30
1807 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1808
1809 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1810 #define SONYPI_CAMERA_CONTROL                   0x10
1811
1812 #define SONYPI_CAMERA_STATUS                    7
1813 #define SONYPI_CAMERA_STATUS_READY              0x2
1814 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1815
1816 #define SONYPI_DIRECTION_BACKWARDS              0x4
1817
1818 #define SONYPI_CAMERA_REVISION                  8
1819 #define SONYPI_CAMERA_ROMVERSION                9
1820
1821 static int __sony_pic_camera_ready(void)
1822 {
1823         u8 v;
1824
1825         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1826         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1827 }
1828
1829 static int __sony_pic_camera_off(void)
1830 {
1831         if (!camera) {
1832                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1833                 return -ENODEV;
1834         }
1835
1836         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1837                                 SONYPI_CAMERA_MUTE_MASK),
1838                         ITERATIONS_SHORT);
1839
1840         if (spic_dev.camera_power) {
1841                 sony_pic_call2(0x91, 0);
1842                 spic_dev.camera_power = 0;
1843         }
1844         return 0;
1845 }
1846
1847 static int __sony_pic_camera_on(void)
1848 {
1849         int i, j, x;
1850
1851         if (!camera) {
1852                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1853                 return -ENODEV;
1854         }
1855
1856         if (spic_dev.camera_power)
1857                 return 0;
1858
1859         for (j = 5; j > 0; j--) {
1860
1861                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1862                         msleep(10);
1863                 sony_pic_call1(0x93);
1864
1865                 for (i = 400; i > 0; i--) {
1866                         if (__sony_pic_camera_ready())
1867                                 break;
1868                         msleep(10);
1869                 }
1870                 if (i)
1871                         break;
1872         }
1873
1874         if (j == 0) {
1875                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1876                 return -ENODEV;
1877         }
1878
1879         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1880                                 0x5a),
1881                         ITERATIONS_SHORT);
1882
1883         spic_dev.camera_power = 1;
1884         return 0;
1885 }
1886
1887 /* External camera command (exported to the motion eye v4l driver) */
1888 int sony_pic_camera_command(int command, u8 value)
1889 {
1890         if (!camera)
1891                 return -EIO;
1892
1893         mutex_lock(&spic_dev.lock);
1894
1895         switch (command) {
1896         case SONY_PIC_COMMAND_SETCAMERA:
1897                 if (value)
1898                         __sony_pic_camera_on();
1899                 else
1900                         __sony_pic_camera_off();
1901                 break;
1902         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1903                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1904                                 ITERATIONS_SHORT);
1905                 break;
1906         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1907                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1908                                 ITERATIONS_SHORT);
1909                 break;
1910         case SONY_PIC_COMMAND_SETCAMERAHUE:
1911                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1912                                 ITERATIONS_SHORT);
1913                 break;
1914         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1915                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1916                                 ITERATIONS_SHORT);
1917                 break;
1918         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1919                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1920                                 ITERATIONS_SHORT);
1921                 break;
1922         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1923                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1924                                 ITERATIONS_SHORT);
1925                 break;
1926         case SONY_PIC_COMMAND_SETCAMERAAGC:
1927                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1928                                 ITERATIONS_SHORT);
1929                 break;
1930         default:
1931                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1932                        command);
1933                 break;
1934         }
1935         mutex_unlock(&spic_dev.lock);
1936         return 0;
1937 }
1938 EXPORT_SYMBOL(sony_pic_camera_command);
1939
1940 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1941 static void __sony_pic_set_wwanpower(u8 state)
1942 {
1943         state = !!state;
1944         if (spic_dev.wwan_power == state)
1945                 return;
1946         sony_pic_call2(0xB0, state);
1947         sony_pic_call1(0x82);
1948         spic_dev.wwan_power = state;
1949 }
1950
1951 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1952                 struct device_attribute *attr,
1953                 const char *buffer, size_t count)
1954 {
1955         unsigned long value;
1956         if (count > 31)
1957                 return -EINVAL;
1958
1959         value = simple_strtoul(buffer, NULL, 10);
1960         mutex_lock(&spic_dev.lock);
1961         __sony_pic_set_wwanpower(value);
1962         mutex_unlock(&spic_dev.lock);
1963
1964         return count;
1965 }
1966
1967 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1968                 struct device_attribute *attr, char *buffer)
1969 {
1970         ssize_t count;
1971         mutex_lock(&spic_dev.lock);
1972         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1973         mutex_unlock(&spic_dev.lock);
1974         return count;
1975 }
1976
1977 /* bluetooth subsystem power state */
1978 static void __sony_pic_set_bluetoothpower(u8 state)
1979 {
1980         state = !!state;
1981         if (spic_dev.bluetooth_power == state)
1982                 return;
1983         sony_pic_call2(0x96, state);
1984         sony_pic_call1(0x82);
1985         spic_dev.bluetooth_power = state;
1986 }
1987
1988 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1989                 struct device_attribute *attr,
1990                 const char *buffer, size_t count)
1991 {
1992         unsigned long value;
1993         if (count > 31)
1994                 return -EINVAL;
1995
1996         value = simple_strtoul(buffer, NULL, 10);
1997         mutex_lock(&spic_dev.lock);
1998         __sony_pic_set_bluetoothpower(value);
1999         mutex_unlock(&spic_dev.lock);
2000
2001         return count;
2002 }
2003
2004 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2005                 struct device_attribute *attr, char *buffer)
2006 {
2007         ssize_t count = 0;
2008         mutex_lock(&spic_dev.lock);
2009         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2010         mutex_unlock(&spic_dev.lock);
2011         return count;
2012 }
2013
2014 /* fan speed */
2015 /* FAN0 information (reverse engineered from ACPI tables) */
2016 #define SONY_PIC_FAN0_STATUS    0x93
2017 static int sony_pic_set_fanspeed(unsigned long value)
2018 {
2019         return ec_write(SONY_PIC_FAN0_STATUS, value);
2020 }
2021
2022 static int sony_pic_get_fanspeed(u8 *value)
2023 {
2024         return ec_read(SONY_PIC_FAN0_STATUS, value);
2025 }
2026
2027 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2028                 struct device_attribute *attr,
2029                 const char *buffer, size_t count)
2030 {
2031         unsigned long value;
2032         if (count > 31)
2033                 return -EINVAL;
2034
2035         value = simple_strtoul(buffer, NULL, 10);
2036         if (sony_pic_set_fanspeed(value))
2037                 return -EIO;
2038
2039         return count;
2040 }
2041
2042 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2043                 struct device_attribute *attr, char *buffer)
2044 {
2045         u8 value = 0;
2046         if (sony_pic_get_fanspeed(&value))
2047                 return -EIO;
2048
2049         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2050 }
2051
2052 #define SPIC_ATTR(_name, _mode)                                 \
2053 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2054                 _mode, sony_pic_## _name ##_show,               \
2055                 sony_pic_## _name ##_store)
2056
2057 static SPIC_ATTR(bluetoothpower, 0644);
2058 static SPIC_ATTR(wwanpower, 0644);
2059 static SPIC_ATTR(fanspeed, 0644);
2060
2061 static struct attribute *spic_attributes[] = {
2062         &spic_attr_bluetoothpower.attr,
2063         &spic_attr_wwanpower.attr,
2064         &spic_attr_fanspeed.attr,
2065         NULL
2066 };
2067
2068 static struct attribute_group spic_attribute_group = {
2069         .attrs = spic_attributes
2070 };
2071
2072 /******** SONYPI compatibility **********/
2073 #ifdef CONFIG_SONYPI_COMPAT
2074
2075 /* battery / brightness / temperature  addresses */
2076 #define SONYPI_BAT_FLAGS        0x81
2077 #define SONYPI_LCD_LIGHT        0x96
2078 #define SONYPI_BAT1_PCTRM       0xa0
2079 #define SONYPI_BAT1_LEFT        0xa2
2080 #define SONYPI_BAT1_MAXRT       0xa4
2081 #define SONYPI_BAT2_PCTRM       0xa8
2082 #define SONYPI_BAT2_LEFT        0xaa
2083 #define SONYPI_BAT2_MAXRT       0xac
2084 #define SONYPI_BAT1_MAXTK       0xb0
2085 #define SONYPI_BAT1_FULL        0xb2
2086 #define SONYPI_BAT2_MAXTK       0xb8
2087 #define SONYPI_BAT2_FULL        0xba
2088 #define SONYPI_TEMP_STATUS      0xC1
2089
2090 struct sonypi_compat_s {
2091         struct fasync_struct    *fifo_async;
2092         struct kfifo            *fifo;
2093         spinlock_t              fifo_lock;
2094         wait_queue_head_t       fifo_proc_list;
2095         atomic_t                open_count;
2096 };
2097 static struct sonypi_compat_s sonypi_compat = {
2098         .open_count = ATOMIC_INIT(0),
2099 };
2100
2101 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2102 {
2103         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2104 }
2105
2106 static int sonypi_misc_release(struct inode *inode, struct file *file)
2107 {
2108         atomic_dec(&sonypi_compat.open_count);
2109         return 0;
2110 }
2111
2112 static int sonypi_misc_open(struct inode *inode, struct file *file)
2113 {
2114         /* Flush input queue on first open */
2115         unsigned long flags;
2116
2117         spin_lock_irqsave(sonypi_compat.fifo->lock, flags);
2118
2119         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2120                 __kfifo_reset(sonypi_compat.fifo);
2121
2122         spin_unlock_irqrestore(sonypi_compat.fifo->lock, flags);
2123
2124         return 0;
2125 }
2126
2127 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2128                                 size_t count, loff_t *pos)
2129 {
2130         ssize_t ret;
2131         unsigned char c;
2132
2133         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
2134             (file->f_flags & O_NONBLOCK))
2135                 return -EAGAIN;
2136
2137         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2138                                        kfifo_len(sonypi_compat.fifo) != 0);
2139         if (ret)
2140                 return ret;
2141
2142         while (ret < count &&
2143                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
2144                 if (put_user(c, buf++))
2145                         return -EFAULT;
2146                 ret++;
2147         }
2148
2149         if (ret > 0) {
2150                 struct inode *inode = file->f_path.dentry->d_inode;
2151                 inode->i_atime = current_fs_time(inode->i_sb);
2152         }
2153
2154         return ret;
2155 }
2156
2157 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2158 {
2159         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2160         if (kfifo_len(sonypi_compat.fifo))
2161                 return POLLIN | POLLRDNORM;
2162         return 0;
2163 }
2164
2165 static int ec_read16(u8 addr, u16 *value)
2166 {
2167         u8 val_lb, val_hb;
2168         if (ec_read(addr, &val_lb))
2169                 return -1;
2170         if (ec_read(addr + 1, &val_hb))
2171                 return -1;
2172         *value = val_lb | (val_hb << 8);
2173         return 0;
2174 }
2175
2176 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2177                                                         unsigned long arg)
2178 {
2179         int ret = 0;
2180         void __user *argp = (void __user *)arg;
2181         u8 val8;
2182         u16 val16;
2183         int value;
2184
2185         mutex_lock(&spic_dev.lock);
2186         switch (cmd) {
2187         case SONYPI_IOCGBRT:
2188                 if (sony_backlight_device == NULL) {
2189                         ret = -EIO;
2190                         break;
2191                 }
2192                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2193                         ret = -EIO;
2194                         break;
2195                 }
2196                 val8 = ((value & 0xff) - 1) << 5;
2197                 if (copy_to_user(argp, &val8, sizeof(val8)))
2198                                 ret = -EFAULT;
2199                 break;
2200         case SONYPI_IOCSBRT:
2201                 if (sony_backlight_device == NULL) {
2202                         ret = -EIO;
2203                         break;
2204                 }
2205                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2206                         ret = -EFAULT;
2207                         break;
2208                 }
2209                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2210                                 (val8 >> 5) + 1, NULL)) {
2211                         ret = -EIO;
2212                         break;
2213                 }
2214                 /* sync the backlight device status */
2215                 sony_backlight_device->props.brightness =
2216                     sony_backlight_get_brightness(sony_backlight_device);
2217                 break;
2218         case SONYPI_IOCGBAT1CAP:
2219                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2220                         ret = -EIO;
2221                         break;
2222                 }
2223                 if (copy_to_user(argp, &val16, sizeof(val16)))
2224                         ret = -EFAULT;
2225                 break;
2226         case SONYPI_IOCGBAT1REM:
2227                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2228                         ret = -EIO;
2229                         break;
2230                 }
2231                 if (copy_to_user(argp, &val16, sizeof(val16)))
2232                         ret = -EFAULT;
2233                 break;
2234         case SONYPI_IOCGBAT2CAP:
2235                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2236                         ret = -EIO;
2237                         break;
2238                 }
2239                 if (copy_to_user(argp, &val16, sizeof(val16)))
2240                         ret = -EFAULT;
2241                 break;
2242         case SONYPI_IOCGBAT2REM:
2243                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2244                         ret = -EIO;
2245                         break;
2246                 }
2247                 if (copy_to_user(argp, &val16, sizeof(val16)))
2248                         ret = -EFAULT;
2249                 break;
2250         case SONYPI_IOCGBATFLAGS:
2251                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2252                         ret = -EIO;
2253                         break;
2254                 }
2255                 val8 &= 0x07;
2256                 if (copy_to_user(argp, &val8, sizeof(val8)))
2257                         ret = -EFAULT;
2258                 break;
2259         case SONYPI_IOCGBLUE:
2260                 val8 = spic_dev.bluetooth_power;
2261                 if (copy_to_user(argp, &val8, sizeof(val8)))
2262                         ret = -EFAULT;
2263                 break;
2264         case SONYPI_IOCSBLUE:
2265                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2266                         ret = -EFAULT;
2267                         break;
2268                 }
2269                 __sony_pic_set_bluetoothpower(val8);
2270                 break;
2271         /* FAN Controls */
2272         case SONYPI_IOCGFAN:
2273                 if (sony_pic_get_fanspeed(&val8)) {
2274                         ret = -EIO;
2275                         break;
2276                 }
2277                 if (copy_to_user(argp, &val8, sizeof(val8)))
2278                         ret = -EFAULT;
2279                 break;
2280         case SONYPI_IOCSFAN:
2281                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2282                         ret = -EFAULT;
2283                         break;
2284                 }
2285                 if (sony_pic_set_fanspeed(val8))
2286                         ret = -EIO;
2287                 break;
2288         /* GET Temperature (useful under APM) */
2289         case SONYPI_IOCGTEMP:
2290                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2291                         ret = -EIO;
2292                         break;
2293                 }
2294                 if (copy_to_user(argp, &val8, sizeof(val8)))
2295                         ret = -EFAULT;
2296                 break;
2297         default:
2298                 ret = -EINVAL;
2299         }
2300         mutex_unlock(&spic_dev.lock);
2301         return ret;
2302 }
2303
2304 static const struct file_operations sonypi_misc_fops = {
2305         .owner          = THIS_MODULE,
2306         .read           = sonypi_misc_read,
2307         .poll           = sonypi_misc_poll,
2308         .open           = sonypi_misc_open,
2309         .release        = sonypi_misc_release,
2310         .fasync         = sonypi_misc_fasync,
2311         .unlocked_ioctl = sonypi_misc_ioctl,
2312 };
2313
2314 static struct miscdevice sonypi_misc_device = {
2315         .minor          = MISC_DYNAMIC_MINOR,
2316         .name           = "sonypi",
2317         .fops           = &sonypi_misc_fops,
2318 };
2319
2320 static void sonypi_compat_report_event(u8 event)
2321 {
2322         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2323         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2324         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2325 }
2326
2327 static int sonypi_compat_init(void)
2328 {
2329         int error;
2330
2331         spin_lock_init(&sonypi_compat.fifo_lock);
2332         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2333                                          &sonypi_compat.fifo_lock);
2334         if (IS_ERR(sonypi_compat.fifo)) {
2335                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2336                 return PTR_ERR(sonypi_compat.fifo);
2337         }
2338
2339         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2340
2341         if (minor != -1)
2342                 sonypi_misc_device.minor = minor;
2343         error = misc_register(&sonypi_misc_device);
2344         if (error) {
2345                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2346                 goto err_free_kfifo;
2347         }
2348         if (minor == -1)
2349                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2350                        sonypi_misc_device.minor);
2351
2352         return 0;
2353
2354 err_free_kfifo:
2355         kfifo_free(sonypi_compat.fifo);
2356         return error;
2357 }
2358
2359 static void sonypi_compat_exit(void)
2360 {
2361         misc_deregister(&sonypi_misc_device);
2362         kfifo_free(sonypi_compat.fifo);
2363 }
2364 #else
2365 static int sonypi_compat_init(void) { return 0; }
2366 static void sonypi_compat_exit(void) { }
2367 static void sonypi_compat_report_event(u8 event) { }
2368 #endif /* CONFIG_SONYPI_COMPAT */
2369
2370 /*
2371  * ACPI callbacks
2372  */
2373 static acpi_status
2374 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2375 {
2376         u32 i;
2377         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2378
2379         switch (resource->type) {
2380         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2381                 {
2382                         /* start IO enumeration */
2383                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2384                         if (!ioport)
2385                                 return AE_ERROR;
2386
2387                         list_add(&ioport->list, &dev->ioports);
2388                         return AE_OK;
2389                 }
2390
2391         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2392                 /* end IO enumeration */
2393                 return AE_OK;
2394
2395         case ACPI_RESOURCE_TYPE_IRQ:
2396                 {
2397                         struct acpi_resource_irq *p = &resource->data.irq;
2398                         struct sony_pic_irq *interrupt = NULL;
2399                         if (!p || !p->interrupt_count) {
2400                                 /*
2401                                  * IRQ descriptors may have no IRQ# bits set,
2402                                  * particularly those those w/ _STA disabled
2403                                  */
2404                                 dprintk("Blank IRQ resource\n");
2405                                 return AE_OK;
2406                         }
2407                         for (i = 0; i < p->interrupt_count; i++) {
2408                                 if (!p->interrupts[i]) {
2409                                         printk(KERN_WARNING DRV_PFX
2410                                                         "Invalid IRQ %d\n",
2411                                                         p->interrupts[i]);
2412                                         continue;
2413                                 }
2414                                 interrupt = kzalloc(sizeof(*interrupt),
2415                                                 GFP_KERNEL);
2416                                 if (!interrupt)
2417                                         return AE_ERROR;
2418
2419                                 list_add(&interrupt->list, &dev->interrupts);
2420                                 interrupt->irq.triggering = p->triggering;
2421                                 interrupt->irq.polarity = p->polarity;
2422                                 interrupt->irq.sharable = p->sharable;
2423                                 interrupt->irq.interrupt_count = 1;
2424                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2425                         }
2426                         return AE_OK;
2427                 }
2428         case ACPI_RESOURCE_TYPE_IO:
2429                 {
2430                         struct acpi_resource_io *io = &resource->data.io;
2431                         struct sony_pic_ioport *ioport =
2432                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2433                         if (!io) {
2434                                 dprintk("Blank IO resource\n");
2435                                 return AE_OK;
2436                         }
2437
2438                         if (!ioport->io1.minimum) {
2439                                 memcpy(&ioport->io1, io, sizeof(*io));
2440                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2441                                                 ioport->io1.address_length);
2442                         }
2443                         else if (!ioport->io2.minimum) {
2444                                 memcpy(&ioport->io2, io, sizeof(*io));
2445                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2446                                                 ioport->io2.address_length);
2447                         }
2448                         else {
2449                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2450                                 return AE_ERROR;
2451                         }
2452                         return AE_OK;
2453                 }
2454         default:
2455                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2456                                 resource->type);
2457
2458         case ACPI_RESOURCE_TYPE_END_TAG:
2459                 return AE_OK;
2460         }
2461         return AE_CTRL_TERMINATE;
2462 }
2463
2464 static int sony_pic_possible_resources(struct acpi_device *device)
2465 {
2466         int result = 0;
2467         acpi_status status = AE_OK;
2468
2469         if (!device)
2470                 return -EINVAL;
2471
2472         /* get device status */
2473         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2474         dprintk("Evaluating _STA\n");
2475         result = acpi_bus_get_status(device);
2476         if (result) {
2477                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2478                 goto end;
2479         }
2480
2481         if (!device->status.enabled)
2482                 dprintk("Device disabled\n");
2483         else
2484                 dprintk("Device enabled\n");
2485
2486         /*
2487          * Query and parse 'method'
2488          */
2489         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2490         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2491                         sony_pic_read_possible_resource, &spic_dev);
2492         if (ACPI_FAILURE(status)) {
2493                 printk(KERN_WARNING DRV_PFX
2494                                 "Failure evaluating %s\n",
2495                                 METHOD_NAME__PRS);
2496                 result = -ENODEV;
2497         }
2498 end:
2499         return result;
2500 }
2501
2502 /*
2503  *  Disable the spic device by calling its _DIS method
2504  */
2505 static int sony_pic_disable(struct acpi_device *device)
2506 {
2507         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2508                                                NULL);
2509
2510         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2511                 return -ENXIO;
2512
2513         dprintk("Device disabled\n");
2514         return 0;
2515 }
2516
2517
2518 /*
2519  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2520  *
2521  *  Call _SRS to set current resources
2522  */
2523 static int sony_pic_enable(struct acpi_device *device,
2524                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2525 {
2526         acpi_status status;
2527         int result = 0;
2528         /* Type 1 resource layout is:
2529          *    IO
2530          *    IO
2531          *    IRQNoFlags
2532          *    End
2533          *
2534          * Type 2 and 3 resource layout is:
2535          *    IO
2536          *    IRQNoFlags
2537          *    End
2538          */
2539         struct {
2540                 struct acpi_resource res1;
2541                 struct acpi_resource res2;
2542                 struct acpi_resource res3;
2543                 struct acpi_resource res4;
2544         } *resource;
2545         struct acpi_buffer buffer = { 0, NULL };
2546
2547         if (!ioport || !irq)
2548                 return -EINVAL;
2549
2550         /* init acpi_buffer */
2551         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2552         if (!resource)
2553                 return -ENOMEM;
2554
2555         buffer.length = sizeof(*resource) + 1;
2556         buffer.pointer = resource;
2557
2558         /* setup Type 1 resources */
2559         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2560
2561                 /* setup io resources */
2562                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2563                 resource->res1.length = sizeof(struct acpi_resource);
2564                 memcpy(&resource->res1.data.io, &ioport->io1,
2565                                 sizeof(struct acpi_resource_io));
2566
2567                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2568                 resource->res2.length = sizeof(struct acpi_resource);
2569                 memcpy(&resource->res2.data.io, &ioport->io2,
2570                                 sizeof(struct acpi_resource_io));
2571
2572                 /* setup irq resource */
2573                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2574                 resource->res3.length = sizeof(struct acpi_resource);
2575                 memcpy(&resource->res3.data.irq, &irq->irq,
2576                                 sizeof(struct acpi_resource_irq));
2577                 /* we requested a shared irq */
2578                 resource->res3.data.irq.sharable = ACPI_SHARED;
2579
2580                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2581
2582         }
2583         /* setup Type 2/3 resources */
2584         else {
2585                 /* setup io resource */
2586                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2587                 resource->res1.length = sizeof(struct acpi_resource);
2588                 memcpy(&resource->res1.data.io, &ioport->io1,
2589                                 sizeof(struct acpi_resource_io));
2590
2591                 /* setup irq resource */
2592                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2593                 resource->res2.length = sizeof(struct acpi_resource);
2594                 memcpy(&resource->res2.data.irq, &irq->irq,
2595                                 sizeof(struct acpi_resource_irq));
2596                 /* we requested a shared irq */
2597                 resource->res2.data.irq.sharable = ACPI_SHARED;
2598
2599                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2600         }
2601
2602         /* Attempt to set the resource */
2603         dprintk("Evaluating _SRS\n");
2604         status = acpi_set_current_resources(device->handle, &buffer);
2605
2606         /* check for total failure */
2607         if (ACPI_FAILURE(status)) {
2608                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2609                 result = -ENODEV;
2610                 goto end;
2611         }
2612
2613         /* Necessary device initializations calls (from sonypi) */
2614         sony_pic_call1(0x82);
2615         sony_pic_call2(0x81, 0xff);
2616         sony_pic_call1(compat ? 0x92 : 0x82);
2617
2618 end:
2619         kfree(resource);
2620         return result;
2621 }
2622
2623 /*****************
2624  *
2625  * ISR: some event is available
2626  *
2627  *****************/
2628 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2629 {
2630         int i, j;
2631         u8 ev = 0;
2632         u8 data_mask = 0;
2633         u8 device_event = 0;
2634
2635         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2636
2637         ev = inb_p(dev->cur_ioport->io1.minimum);
2638         if (dev->cur_ioport->io2.minimum)
2639                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2640         else
2641                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2642                                 dev->evport_offset);
2643
2644         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2645                         ev, data_mask, dev->cur_ioport->io1.minimum,
2646                         dev->evport_offset);
2647
2648         if (ev == 0x00 || ev == 0xff)
2649                 return IRQ_HANDLED;
2650
2651         for (i = 0; dev->event_types[i].mask; i++) {
2652
2653                 if ((data_mask & dev->event_types[i].data) !=
2654                     dev->event_types[i].data)
2655                         continue;
2656
2657                 if (!(mask & dev->event_types[i].mask))
2658                         continue;
2659
2660                 for (j = 0; dev->event_types[i].events[j].event; j++) {
2661                         if (ev == dev->event_types[i].events[j].data) {
2662                                 device_event =
2663                                         dev->event_types[i].events[j].event;
2664                                 goto found;
2665                         }
2666                 }
2667         }
2668         /* Still not able to decode the event try to pass
2669          * it over to the minidriver
2670          */
2671         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
2672                 return IRQ_HANDLED;
2673
2674         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2675                         ev, data_mask, dev->cur_ioport->io1.minimum,
2676                         dev->evport_offset);
2677         return IRQ_HANDLED;
2678
2679 found:
2680         sony_laptop_report_input_event(device_event);
2681         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2682         sonypi_compat_report_event(device_event);
2683
2684         return IRQ_HANDLED;
2685 }
2686
2687 /*****************
2688  *
2689  *  ACPI driver
2690  *
2691  *****************/
2692 static int sony_pic_remove(struct acpi_device *device, int type)
2693 {
2694         struct sony_pic_ioport *io, *tmp_io;
2695         struct sony_pic_irq *irq, *tmp_irq;
2696
2697         if (sony_pic_disable(device)) {
2698                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2699                 return -ENXIO;
2700         }
2701
2702         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2703         release_region(spic_dev.cur_ioport->io1.minimum,
2704                         spic_dev.cur_ioport->io1.address_length);
2705         if (spic_dev.cur_ioport->io2.minimum)
2706                 release_region(spic_dev.cur_ioport->io2.minimum,
2707                                 spic_dev.cur_ioport->io2.address_length);
2708
2709         sonypi_compat_exit();
2710
2711         sony_laptop_remove_input();
2712
2713         /* pf attrs */
2714         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2715         sony_pf_remove();
2716
2717         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2718                 list_del(&io->list);
2719                 kfree(io);
2720         }
2721         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2722                 list_del(&irq->list);
2723                 kfree(irq);
2724         }
2725         spic_dev.cur_ioport = NULL;
2726         spic_dev.cur_irq = NULL;
2727
2728         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2729         return 0;
2730 }
2731
2732 static int sony_pic_add(struct acpi_device *device)
2733 {
2734         int result;
2735         struct sony_pic_ioport *io, *tmp_io;
2736         struct sony_pic_irq *irq, *tmp_irq;
2737
2738         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2739                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2740
2741         spic_dev.acpi_dev = device;
2742         strcpy(acpi_device_class(device), "sony/hotkey");
2743         sony_pic_detect_device_type(&spic_dev);
2744         mutex_init(&spic_dev.lock);
2745
2746         /* read _PRS resources */
2747         result = sony_pic_possible_resources(device);
2748         if (result) {
2749                 printk(KERN_ERR DRV_PFX
2750                                 "Unable to read possible resources.\n");
2751                 goto err_free_resources;
2752         }
2753
2754         /* setup input devices and helper fifo */
2755         result = sony_laptop_setup_input(device);
2756         if (result) {
2757                 printk(KERN_ERR DRV_PFX
2758                                 "Unable to create input devices.\n");
2759                 goto err_free_resources;
2760         }
2761
2762         if (sonypi_compat_init())
2763                 goto err_remove_input;
2764
2765         /* request io port */
2766         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2767                 if (request_region(io->io1.minimum, io->io1.address_length,
2768                                         "Sony Programable I/O Device")) {
2769                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2770                                         io->io1.minimum, io->io1.maximum,
2771                                         io->io1.address_length);
2772                         /* Type 1 have 2 ioports */
2773                         if (io->io2.minimum) {
2774                                 if (request_region(io->io2.minimum,
2775                                                 io->io2.address_length,
2776                                                 "Sony Programable I/O Device")) {
2777                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2778                                                         io->io2.minimum, io->io2.maximum,
2779                                                         io->io2.address_length);
2780                                         spic_dev.cur_ioport = io;
2781                                         break;
2782                                 }
2783                                 else {
2784                                         dprintk("Unable to get I/O port2: "
2785                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2786                                                         io->io2.minimum, io->io2.maximum,
2787                                                         io->io2.address_length);
2788                                         release_region(io->io1.minimum,
2789                                                         io->io1.address_length);
2790                                 }
2791                         }
2792                         else {
2793                                 spic_dev.cur_ioport = io;
2794                                 break;
2795                         }
2796                 }
2797         }
2798         if (!spic_dev.cur_ioport) {
2799                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2800                 result = -ENODEV;
2801                 goto err_remove_compat;
2802         }
2803
2804         /* request IRQ */
2805         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2806                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2807                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
2808                         dprintk("IRQ: %d - triggering: %d - "
2809                                         "polarity: %d - shr: %d\n",
2810                                         irq->irq.interrupts[0],
2811                                         irq->irq.triggering,
2812                                         irq->irq.polarity,
2813                                         irq->irq.sharable);
2814                         spic_dev.cur_irq = irq;
2815                         break;
2816                 }
2817         }
2818         if (!spic_dev.cur_irq) {
2819                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2820                 result = -ENODEV;
2821                 goto err_release_region;
2822         }
2823
2824         /* set resource status _SRS */
2825         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2826         if (result) {
2827                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2828                 goto err_free_irq;
2829         }
2830
2831         spic_dev.bluetooth_power = -1;
2832         /* create device attributes */
2833         result = sony_pf_add();
2834         if (result)
2835                 goto err_disable_device;
2836
2837         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2838         if (result)
2839                 goto err_remove_pf;
2840
2841         return 0;
2842
2843 err_remove_pf:
2844         sony_pf_remove();
2845
2846 err_disable_device:
2847         sony_pic_disable(device);
2848
2849 err_free_irq:
2850         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2851
2852 err_release_region:
2853         release_region(spic_dev.cur_ioport->io1.minimum,
2854                         spic_dev.cur_ioport->io1.address_length);
2855         if (spic_dev.cur_ioport->io2.minimum)
2856                 release_region(spic_dev.cur_ioport->io2.minimum,
2857                                 spic_dev.cur_ioport->io2.address_length);
2858
2859 err_remove_compat:
2860         sonypi_compat_exit();
2861
2862 err_remove_input:
2863         sony_laptop_remove_input();
2864
2865 err_free_resources:
2866         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2867                 list_del(&io->list);
2868                 kfree(io);
2869         }
2870         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2871                 list_del(&irq->list);
2872                 kfree(irq);
2873         }
2874         spic_dev.cur_ioport = NULL;
2875         spic_dev.cur_irq = NULL;
2876
2877         return result;
2878 }
2879
2880 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2881 {
2882         if (sony_pic_disable(device))
2883                 return -ENXIO;
2884         return 0;
2885 }
2886
2887 static int sony_pic_resume(struct acpi_device *device)
2888 {
2889         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2890         return 0;
2891 }
2892
2893 static const struct acpi_device_id sony_pic_device_ids[] = {
2894         {SONY_PIC_HID, 0},
2895         {"", 0},
2896 };
2897
2898 static struct acpi_driver sony_pic_driver = {
2899         .name = SONY_PIC_DRIVER_NAME,
2900         .class = SONY_PIC_CLASS,
2901         .ids = sony_pic_device_ids,
2902         .owner = THIS_MODULE,
2903         .ops = {
2904                 .add = sony_pic_add,
2905                 .remove = sony_pic_remove,
2906                 .suspend = sony_pic_suspend,
2907                 .resume = sony_pic_resume,
2908                 },
2909 };
2910
2911 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2912         {
2913                 .ident = "Sony Vaio",
2914                 .matches = {
2915                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2916                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2917                 },
2918         },
2919         {
2920                 .ident = "Sony Vaio",
2921                 .matches = {
2922                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2923                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2924                 },
2925         },
2926         { }
2927 };
2928
2929 static int __init sony_laptop_init(void)
2930 {
2931         int result;
2932
2933         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2934                 result = acpi_bus_register_driver(&sony_pic_driver);
2935                 if (result) {
2936                         printk(KERN_ERR DRV_PFX
2937                                         "Unable to register SPIC driver.");
2938                         goto out;
2939                 }
2940                 spic_drv_registered = 1;
2941         }
2942
2943         result = acpi_bus_register_driver(&sony_nc_driver);
2944         if (result) {
2945                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2946                 goto out_unregister_pic;
2947         }
2948
2949         return 0;
2950
2951 out_unregister_pic:
2952         if (spic_drv_registered)
2953                 acpi_bus_unregister_driver(&sony_pic_driver);
2954 out:
2955         return result;
2956 }
2957
2958 static void __exit sony_laptop_exit(void)
2959 {
2960         acpi_bus_unregister_driver(&sony_nc_driver);
2961         if (spic_drv_registered)
2962                 acpi_bus_unregister_driver(&sony_pic_driver);
2963 }
2964
2965 module_init(sony_laptop_init);
2966 module_exit(sony_laptop_exit);