9710f70040ba559c99e0e702c288f9776ca947d6
[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 struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
135 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
136 static void sony_nc_rfkill_update(void);
137
138 /*********** Input Devices ***********/
139
140 #define SONY_LAPTOP_BUF_SIZE    128
141 struct sony_laptop_input_s {
142         atomic_t                users;
143         struct input_dev        *jog_dev;
144         struct input_dev        *key_dev;
145         struct kfifo            *fifo;
146         spinlock_t              fifo_lock;
147         struct workqueue_struct *wq;
148 };
149
150 static struct sony_laptop_input_s sony_laptop_input = {
151         .users = ATOMIC_INIT(0),
152 };
153
154 struct sony_laptop_keypress {
155         struct input_dev *dev;
156         int key;
157 };
158
159 /* Correspondance table between sonypi events
160  * and input layer indexes in the keymap
161  */
162 static int sony_laptop_input_index[] = {
163         -1,     /*  0 no event */
164         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
165         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
166         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
167         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
168         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
169         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
170          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
171          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
172          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
173          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
174          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
175          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
176          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
177          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
178          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
179          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
180         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
181         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
182         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
183         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
184         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
185         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
186         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
187         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
188         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
189         19,     /* 26 SONYPI_EVENT_FNKEY_D */
190         20,     /* 27 SONYPI_EVENT_FNKEY_E */
191         21,     /* 28 SONYPI_EVENT_FNKEY_F */
192         22,     /* 29 SONYPI_EVENT_FNKEY_S */
193         23,     /* 30 SONYPI_EVENT_FNKEY_B */
194         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
195         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
196         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
197         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
198         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
199         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
200         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
201         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
202         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
203         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
204         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
205         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
206         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
207         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
208         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
209         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
210         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
211         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
212         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
213         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
214         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
215         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
216         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
217         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
218         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
219         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
220         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
221         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
222         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
223         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
224         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
225         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
226         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
227         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
228         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
229         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
230         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
231         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
232         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
233         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
234         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
235         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
236 };
237
238 static int sony_laptop_input_keycode_map[] = {
239         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
240         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
241         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
242         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
243         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
244         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
245         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
246         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
247         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
248         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
249         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
250         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
251         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
252         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
253         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
254         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
255         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
256         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
257         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
258         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
259         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
260         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
261         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
262         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
263         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
264         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
265         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
266         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
267         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
268         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
269         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
270         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
271         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
272         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
273         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
274         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
275         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
276         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
277         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
278         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
279         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
280         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
281         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
282         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
283         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
284         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
285         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
286         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
287         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
288         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
289         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
290         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
291         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
292         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
293         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
294         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
295         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
296         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
297         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
298 };
299
300 /* release buttons after a short delay if pressed */
301 static void do_sony_laptop_release_key(struct work_struct *work)
302 {
303         struct sony_laptop_keypress kp;
304
305         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
306                          sizeof(kp)) == sizeof(kp)) {
307                 msleep(10);
308                 input_report_key(kp.dev, kp.key, 0);
309                 input_sync(kp.dev);
310         }
311 }
312 static DECLARE_WORK(sony_laptop_release_key_work,
313                 do_sony_laptop_release_key);
314
315 /* forward event to the input subsystem */
316 static void sony_laptop_report_input_event(u8 event)
317 {
318         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
319         struct input_dev *key_dev = sony_laptop_input.key_dev;
320         struct sony_laptop_keypress kp = { NULL };
321
322         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
323                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
324                 /* Nothing, not all VAIOs generate this event */
325                 return;
326         }
327
328         /* report events */
329         switch (event) {
330         /* jog_dev events */
331         case SONYPI_EVENT_JOGDIAL_UP:
332         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
333                 input_report_rel(jog_dev, REL_WHEEL, 1);
334                 input_sync(jog_dev);
335                 return;
336
337         case SONYPI_EVENT_JOGDIAL_DOWN:
338         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
339                 input_report_rel(jog_dev, REL_WHEEL, -1);
340                 input_sync(jog_dev);
341                 return;
342
343         /* key_dev events */
344         case SONYPI_EVENT_JOGDIAL_PRESSED:
345                 kp.key = BTN_MIDDLE;
346                 kp.dev = jog_dev;
347                 break;
348
349         default:
350                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
351                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
352                         break;
353                 }
354                 if (sony_laptop_input_index[event] != -1) {
355                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
356                         if (kp.key != KEY_UNKNOWN)
357                                 kp.dev = key_dev;
358                 }
359                 break;
360         }
361
362         if (kp.dev) {
363                 input_report_key(kp.dev, kp.key, 1);
364                 /* we emit the scancode so we can always remap the key */
365                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
366                 input_sync(kp.dev);
367                 kfifo_put(sony_laptop_input.fifo,
368                           (unsigned char *)&kp, sizeof(kp));
369
370                 if (!work_pending(&sony_laptop_release_key_work))
371                         queue_work(sony_laptop_input.wq,
372                                         &sony_laptop_release_key_work);
373         } else
374                 dprintk("unknown input event %.2x\n", event);
375 }
376
377 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
378 {
379         struct input_dev *jog_dev;
380         struct input_dev *key_dev;
381         int i;
382         int error;
383
384         /* don't run again if already initialized */
385         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
386                 return 0;
387
388         /* kfifo */
389         spin_lock_init(&sony_laptop_input.fifo_lock);
390         sony_laptop_input.fifo =
391                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
392                             &sony_laptop_input.fifo_lock);
393         if (IS_ERR(sony_laptop_input.fifo)) {
394                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
395                 error = PTR_ERR(sony_laptop_input.fifo);
396                 goto err_dec_users;
397         }
398
399         /* init workqueue */
400         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
401         if (!sony_laptop_input.wq) {
402                 printk(KERN_ERR DRV_PFX
403                                 "Unable to create workqueue.\n");
404                 error = -ENXIO;
405                 goto err_free_kfifo;
406         }
407
408         /* input keys */
409         key_dev = input_allocate_device();
410         if (!key_dev) {
411                 error = -ENOMEM;
412                 goto err_destroy_wq;
413         }
414
415         key_dev->name = "Sony Vaio Keys";
416         key_dev->id.bustype = BUS_ISA;
417         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
418         key_dev->dev.parent = &acpi_device->dev;
419
420         /* Initialize the Input Drivers: special keys */
421         set_bit(EV_KEY, key_dev->evbit);
422         set_bit(EV_MSC, key_dev->evbit);
423         set_bit(MSC_SCAN, key_dev->mscbit);
424         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
425         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
426         key_dev->keycode = &sony_laptop_input_keycode_map;
427         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
428                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
429                         set_bit(sony_laptop_input_keycode_map[i],
430                                 key_dev->keybit);
431                 }
432         }
433
434         error = input_register_device(key_dev);
435         if (error)
436                 goto err_free_keydev;
437
438         sony_laptop_input.key_dev = key_dev;
439
440         /* jogdial */
441         jog_dev = input_allocate_device();
442         if (!jog_dev) {
443                 error = -ENOMEM;
444                 goto err_unregister_keydev;
445         }
446
447         jog_dev->name = "Sony Vaio Jogdial";
448         jog_dev->id.bustype = BUS_ISA;
449         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
450         key_dev->dev.parent = &acpi_device->dev;
451
452         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
453         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
454         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
455
456         error = input_register_device(jog_dev);
457         if (error)
458                 goto err_free_jogdev;
459
460         sony_laptop_input.jog_dev = jog_dev;
461
462         return 0;
463
464 err_free_jogdev:
465         input_free_device(jog_dev);
466
467 err_unregister_keydev:
468         input_unregister_device(key_dev);
469         /* to avoid kref underflow below at input_free_device */
470         key_dev = NULL;
471
472 err_free_keydev:
473         input_free_device(key_dev);
474
475 err_destroy_wq:
476         destroy_workqueue(sony_laptop_input.wq);
477
478 err_free_kfifo:
479         kfifo_free(sony_laptop_input.fifo);
480
481 err_dec_users:
482         atomic_dec(&sony_laptop_input.users);
483         return error;
484 }
485
486 static void sony_laptop_remove_input(void)
487 {
488         /* cleanup only after the last user has gone */
489         if (!atomic_dec_and_test(&sony_laptop_input.users))
490                 return;
491
492         /* flush workqueue first */
493         flush_workqueue(sony_laptop_input.wq);
494
495         /* destroy input devs */
496         input_unregister_device(sony_laptop_input.key_dev);
497         sony_laptop_input.key_dev = NULL;
498
499         if (sony_laptop_input.jog_dev) {
500                 input_unregister_device(sony_laptop_input.jog_dev);
501                 sony_laptop_input.jog_dev = NULL;
502         }
503
504         destroy_workqueue(sony_laptop_input.wq);
505         kfifo_free(sony_laptop_input.fifo);
506 }
507
508 /*********** Platform Device ***********/
509
510 static atomic_t sony_pf_users = ATOMIC_INIT(0);
511 static struct platform_driver sony_pf_driver = {
512         .driver = {
513                    .name = "sony-laptop",
514                    .owner = THIS_MODULE,
515                    }
516 };
517 static struct platform_device *sony_pf_device;
518
519 static int sony_pf_add(void)
520 {
521         int ret = 0;
522
523         /* don't run again if already initialized */
524         if (atomic_add_return(1, &sony_pf_users) > 1)
525                 return 0;
526
527         ret = platform_driver_register(&sony_pf_driver);
528         if (ret)
529                 goto out;
530
531         sony_pf_device = platform_device_alloc("sony-laptop", -1);
532         if (!sony_pf_device) {
533                 ret = -ENOMEM;
534                 goto out_platform_registered;
535         }
536
537         ret = platform_device_add(sony_pf_device);
538         if (ret)
539                 goto out_platform_alloced;
540
541         return 0;
542
543       out_platform_alloced:
544         platform_device_put(sony_pf_device);
545         sony_pf_device = NULL;
546       out_platform_registered:
547         platform_driver_unregister(&sony_pf_driver);
548       out:
549         atomic_dec(&sony_pf_users);
550         return ret;
551 }
552
553 static void sony_pf_remove(void)
554 {
555         /* deregister only after the last user has gone */
556         if (!atomic_dec_and_test(&sony_pf_users))
557                 return;
558
559         platform_device_del(sony_pf_device);
560         platform_device_put(sony_pf_device);
561         platform_driver_unregister(&sony_pf_driver);
562 }
563
564 /*********** SNC (SNY5001) Device ***********/
565
566 /* the device uses 1-based values, while the backlight subsystem uses
567    0-based values */
568 #define SONY_MAX_BRIGHTNESS     8
569
570 #define SNC_VALIDATE_IN         0
571 #define SNC_VALIDATE_OUT        1
572
573 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
574                               char *);
575 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
576                                const char *, size_t);
577 static int boolean_validate(const int, const int);
578 static int brightness_default_validate(const int, const int);
579
580 struct sony_nc_value {
581         char *name;             /* name of the entry */
582         char **acpiget;         /* names of the ACPI get function */
583         char **acpiset;         /* names of the ACPI set function */
584         int (*validate)(const int, const int);  /* input/output validation */
585         int value;              /* current setting */
586         int valid;              /* Has ever been set */
587         int debug;              /* active only in debug mode ? */
588         struct device_attribute devattr;        /* sysfs atribute */
589 };
590
591 #define SNC_HANDLE_NAMES(_name, _values...) \
592         static char *snc_##_name[] = { _values, NULL }
593
594 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
595         { \
596                 .name           = __stringify(_name), \
597                 .acpiget        = _getters, \
598                 .acpiset        = _setters, \
599                 .validate       = _validate, \
600                 .debug          = _debug, \
601                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
602         }
603
604 #define SNC_HANDLE_NULL { .name = NULL }
605
606 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
607
608 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
609 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
610
611 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
612 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
613
614 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
615 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
616
617 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
618 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
619
620 SNC_HANDLE_NAMES(lidstate_get, "GLID");
621
622 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
623 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
624
625 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
626 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
627
628 SNC_HANDLE_NAMES(PID_get, "GPID");
629
630 SNC_HANDLE_NAMES(CTR_get, "GCTR");
631 SNC_HANDLE_NAMES(CTR_set, "SCTR");
632
633 SNC_HANDLE_NAMES(PCR_get, "GPCR");
634 SNC_HANDLE_NAMES(PCR_set, "SPCR");
635
636 SNC_HANDLE_NAMES(CMI_get, "GCMI");
637 SNC_HANDLE_NAMES(CMI_set, "SCMI");
638
639 static struct sony_nc_value sony_nc_values[] = {
640         SNC_HANDLE(brightness_default, snc_brightness_def_get,
641                         snc_brightness_def_set, brightness_default_validate, 0),
642         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
643         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
644         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
645                         boolean_validate, 0),
646         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
647                         boolean_validate, 1),
648         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
649                         boolean_validate, 0),
650         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
651                         boolean_validate, 0),
652         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
653                         boolean_validate, 0),
654         /* unknown methods */
655         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
656         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
657         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
658         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
659         SNC_HANDLE_NULL
660 };
661
662 static acpi_handle sony_nc_acpi_handle;
663 static struct acpi_device *sony_nc_acpi_device = NULL;
664
665 /*
666  * acpi_evaluate_object wrappers
667  */
668 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
669 {
670         struct acpi_buffer output;
671         union acpi_object out_obj;
672         acpi_status status;
673
674         output.length = sizeof(out_obj);
675         output.pointer = &out_obj;
676
677         status = acpi_evaluate_object(handle, name, NULL, &output);
678         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
679                 *result = out_obj.integer.value;
680                 return 0;
681         }
682
683         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
684
685         return -1;
686 }
687
688 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
689                             int *result)
690 {
691         struct acpi_object_list params;
692         union acpi_object in_obj;
693         struct acpi_buffer output;
694         union acpi_object out_obj;
695         acpi_status status;
696
697         params.count = 1;
698         params.pointer = &in_obj;
699         in_obj.type = ACPI_TYPE_INTEGER;
700         in_obj.integer.value = value;
701
702         output.length = sizeof(out_obj);
703         output.pointer = &out_obj;
704
705         status = acpi_evaluate_object(handle, name, &params, &output);
706         if (status == AE_OK) {
707                 if (result != NULL) {
708                         if (out_obj.type != ACPI_TYPE_INTEGER) {
709                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
710                                        "return type\n");
711                                 return -1;
712                         }
713                         *result = out_obj.integer.value;
714                 }
715                 return 0;
716         }
717
718         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
719
720         return -1;
721 }
722
723 static int sony_find_snc_handle(int handle)
724 {
725         int i;
726         int result;
727
728         for (i = 0x20; i < 0x30; i++) {
729                 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
730                 if (result == handle)
731                         return i-0x20;
732         }
733
734         return -1;
735 }
736
737 static int sony_call_snc_handle(int handle, int argument, int *result)
738 {
739         int offset = sony_find_snc_handle(handle);
740
741         if (offset < 0)
742                 return -1;
743
744         return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
745                                 result);
746 }
747
748 /*
749  * sony_nc_values input/output validate functions
750  */
751
752 /* brightness_default_validate:
753  *
754  * manipulate input output values to keep consistency with the
755  * backlight framework for which brightness values are 0-based.
756  */
757 static int brightness_default_validate(const int direction, const int value)
758 {
759         switch (direction) {
760                 case SNC_VALIDATE_OUT:
761                         return value - 1;
762                 case SNC_VALIDATE_IN:
763                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
764                                 return value + 1;
765         }
766         return -EINVAL;
767 }
768
769 /* boolean_validate:
770  *
771  * on input validate boolean values 0/1, on output just pass the
772  * received value.
773  */
774 static int boolean_validate(const int direction, const int value)
775 {
776         if (direction == SNC_VALIDATE_IN) {
777                 if (value != 0 && value != 1)
778                         return -EINVAL;
779         }
780         return value;
781 }
782
783 /*
784  * Sysfs show/store common to all sony_nc_values
785  */
786 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
787                               char *buffer)
788 {
789         int value;
790         struct sony_nc_value *item =
791             container_of(attr, struct sony_nc_value, devattr);
792
793         if (!*item->acpiget)
794                 return -EIO;
795
796         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
797                 return -EIO;
798
799         if (item->validate)
800                 value = item->validate(SNC_VALIDATE_OUT, value);
801
802         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
803 }
804
805 static ssize_t sony_nc_sysfs_store(struct device *dev,
806                                struct device_attribute *attr,
807                                const char *buffer, size_t count)
808 {
809         int value;
810         struct sony_nc_value *item =
811             container_of(attr, struct sony_nc_value, devattr);
812
813         if (!item->acpiset)
814                 return -EIO;
815
816         if (count > 31)
817                 return -EINVAL;
818
819         value = simple_strtoul(buffer, NULL, 10);
820
821         if (item->validate)
822                 value = item->validate(SNC_VALIDATE_IN, value);
823
824         if (value < 0)
825                 return value;
826
827         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
828                 return -EIO;
829         item->value = value;
830         item->valid = 1;
831         return count;
832 }
833
834
835 /*
836  * Backlight device
837  */
838 static int sony_backlight_update_status(struct backlight_device *bd)
839 {
840         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
841                                 bd->props.brightness + 1, NULL);
842 }
843
844 static int sony_backlight_get_brightness(struct backlight_device *bd)
845 {
846         int value;
847
848         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
849                 return 0;
850         /* brightness levels are 1-based, while backlight ones are 0-based */
851         return value - 1;
852 }
853
854 static struct backlight_device *sony_backlight_device;
855 static struct backlight_ops sony_backlight_ops = {
856         .update_status = sony_backlight_update_status,
857         .get_brightness = sony_backlight_get_brightness,
858 };
859
860 /*
861  * New SNC-only Vaios event mapping to driver known keys
862  */
863 struct sony_nc_event {
864         u8      data;
865         u8      event;
866 };
867
868 static struct sony_nc_event sony_100_events[] = {
869         { 0x90, SONYPI_EVENT_PKEY_P1 },
870         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
871         { 0x91, SONYPI_EVENT_PKEY_P2 },
872         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
873         { 0x81, SONYPI_EVENT_FNKEY_F1 },
874         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
875         { 0x82, SONYPI_EVENT_FNKEY_F2 },
876         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
877         { 0x83, SONYPI_EVENT_FNKEY_F3 },
878         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
879         { 0x84, SONYPI_EVENT_FNKEY_F4 },
880         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
881         { 0x85, SONYPI_EVENT_FNKEY_F5 },
882         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
883         { 0x86, SONYPI_EVENT_FNKEY_F6 },
884         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
885         { 0x87, SONYPI_EVENT_FNKEY_F7 },
886         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
887         { 0x89, SONYPI_EVENT_FNKEY_F9 },
888         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
889         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
890         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
891         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
892         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
893         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
894         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
895         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
896         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
897         { 0, 0 },
898 };
899
900 static struct sony_nc_event sony_127_events[] = {
901         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
902         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
903         { 0x82, SONYPI_EVENT_PKEY_P1 },
904         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
905         { 0x83, SONYPI_EVENT_PKEY_P2 },
906         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
907         { 0x84, SONYPI_EVENT_PKEY_P3 },
908         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
909         { 0x85, SONYPI_EVENT_PKEY_P4 },
910         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
911         { 0x86, SONYPI_EVENT_PKEY_P5 },
912         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
913         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
914         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
915         { 0, 0 },
916 };
917
918 /*
919  * ACPI callbacks
920  */
921 static void sony_nc_notify(struct acpi_device *device, u32 event)
922 {
923         u32 ev = event;
924
925         if (ev >= 0x90) {
926                 /* New-style event */
927                 int result;
928                 int key_handle = 0;
929                 ev -= 0x90;
930
931                 if (sony_find_snc_handle(0x100) == ev)
932                         key_handle = 0x100;
933                 if (sony_find_snc_handle(0x127) == ev)
934                         key_handle = 0x127;
935
936                 if (key_handle) {
937                         struct sony_nc_event *key_event;
938
939                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
940                                 dprintk("sony_nc_notify, unable to decode"
941                                         " event 0x%.2x 0x%.2x\n", key_handle,
942                                         ev);
943                                 /* restore the original event */
944                                 ev = event;
945                         } else {
946                                 ev = result & 0xFF;
947
948                                 if (key_handle == 0x100)
949                                         key_event = sony_100_events;
950                                 else
951                                         key_event = sony_127_events;
952
953                                 for (; key_event->data; key_event++) {
954                                         if (key_event->data == ev) {
955                                                 ev = key_event->event;
956                                                 break;
957                                         }
958                                 }
959
960                                 if (!key_event->data)
961                                         printk(KERN_INFO DRV_PFX
962                                                         "Unknown event: 0x%x 0x%x\n",
963                                                         key_handle,
964                                                         ev);
965                                 else
966                                         sony_laptop_report_input_event(ev);
967                         }
968                 } else if (sony_find_snc_handle(0x124) == ev) {
969                         sony_nc_rfkill_update();
970                         return;
971                 }
972         } else
973                 sony_laptop_report_input_event(ev);
974
975         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
976         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
977 }
978
979 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
980                                       void *context, void **return_value)
981 {
982         struct acpi_device_info *info;
983
984         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
985                 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
986                         (char *)&info->name, info->param_count);
987
988                 kfree(info);
989         }
990
991         return AE_OK;
992 }
993
994 /*
995  * ACPI device
996  */
997 static int sony_nc_function_setup(struct acpi_device *device)
998 {
999         int result;
1000
1001         /* Enable all events */
1002         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1003
1004         /* Setup hotkeys */
1005         sony_call_snc_handle(0x0100, 0, &result);
1006         sony_call_snc_handle(0x0101, 0, &result);
1007         sony_call_snc_handle(0x0102, 0x100, &result);
1008         sony_call_snc_handle(0x0127, 0, &result);
1009
1010         return 0;
1011 }
1012
1013 static int sony_nc_resume(struct acpi_device *device)
1014 {
1015         struct sony_nc_value *item;
1016         acpi_handle handle;
1017
1018         for (item = sony_nc_values; item->name; item++) {
1019                 int ret;
1020
1021                 if (!item->valid)
1022                         continue;
1023                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1024                                        item->value, NULL);
1025                 if (ret < 0) {
1026                         printk("%s: %d\n", __func__, ret);
1027                         break;
1028                 }
1029         }
1030
1031         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1032                                          &handle))) {
1033                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1034                         dprintk("ECON Method failed\n");
1035         }
1036
1037         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1038                                          &handle))) {
1039                 dprintk("Doing SNC setup\n");
1040                 sony_nc_function_setup(device);
1041         }
1042
1043         /* set the last requested brightness level */
1044         if (sony_backlight_device &&
1045                         sony_backlight_update_status(sony_backlight_device) < 0)
1046                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1047
1048         /* re-read rfkill state */
1049         sony_nc_rfkill_update();
1050
1051         return 0;
1052 }
1053
1054 static void sony_nc_rfkill_cleanup(void)
1055 {
1056         int i;
1057
1058         for (i = 0; i < N_SONY_RFKILL; i++) {
1059                 if (sony_rfkill_devices[i]) {
1060                         rfkill_unregister(sony_rfkill_devices[i]);
1061                         rfkill_destroy(sony_rfkill_devices[i]);
1062                 }
1063         }
1064 }
1065
1066 static int sony_nc_rfkill_set(void *data, bool blocked)
1067 {
1068         int result;
1069         int argument = sony_rfkill_address[(long) data] + 0x100;
1070
1071         if (!blocked)
1072                 argument |= 0xff0000;
1073
1074         return sony_call_snc_handle(0x124, argument, &result);
1075 }
1076
1077 static const struct rfkill_ops sony_rfkill_ops = {
1078         .set_block = sony_nc_rfkill_set,
1079 };
1080
1081 static int sony_nc_setup_rfkill(struct acpi_device *device,
1082                                 enum sony_nc_rfkill nc_type)
1083 {
1084         int err = 0;
1085         struct rfkill *rfk;
1086         enum rfkill_type type;
1087         const char *name;
1088         int result;
1089         bool hwblock;
1090
1091         switch (nc_type) {
1092         case SONY_WIFI:
1093                 type = RFKILL_TYPE_WLAN;
1094                 name = "sony-wifi";
1095                 break;
1096         case SONY_BLUETOOTH:
1097                 type = RFKILL_TYPE_BLUETOOTH;
1098                 name = "sony-bluetooth";
1099                 break;
1100         case SONY_WWAN:
1101                 type = RFKILL_TYPE_WWAN;
1102                 name = "sony-wwan";
1103                 break;
1104         case SONY_WIMAX:
1105                 type = RFKILL_TYPE_WIMAX;
1106                 name = "sony-wimax";
1107                 break;
1108         default:
1109                 return -EINVAL;
1110         }
1111
1112         rfk = rfkill_alloc(name, &device->dev, type,
1113                            &sony_rfkill_ops, (void *)nc_type);
1114         if (!rfk)
1115                 return -ENOMEM;
1116
1117         sony_call_snc_handle(0x124, 0x200, &result);
1118         hwblock = !(result & 0x1);
1119         rfkill_set_hw_state(rfk, hwblock);
1120
1121         err = rfkill_register(rfk);
1122         if (err) {
1123                 rfkill_destroy(rfk);
1124                 return err;
1125         }
1126         sony_rfkill_devices[nc_type] = rfk;
1127         return err;
1128 }
1129
1130 static void sony_nc_rfkill_update()
1131 {
1132         enum sony_nc_rfkill i;
1133         int result;
1134         bool hwblock;
1135
1136         sony_call_snc_handle(0x124, 0x200, &result);
1137         hwblock = !(result & 0x1);
1138
1139         for (i = 0; i < N_SONY_RFKILL; i++) {
1140                 int argument = sony_rfkill_address[i];
1141
1142                 if (!sony_rfkill_devices[i])
1143                         continue;
1144
1145                 if (hwblock) {
1146                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1147                                 /* we already know we're blocked */
1148                         }
1149                         continue;
1150                 }
1151
1152                 sony_call_snc_handle(0x124, argument, &result);
1153                 rfkill_set_states(sony_rfkill_devices[i],
1154                                   !(result & 0xf), false);
1155         }
1156 }
1157
1158 static int sony_nc_rfkill_setup(struct acpi_device *device)
1159 {
1160         int result, ret;
1161
1162         if (sony_find_snc_handle(0x124) == -1)
1163                 return -1;
1164
1165         ret = sony_call_snc_handle(0x124, 0xb00, &result);
1166         if (ret) {
1167                 printk(KERN_INFO DRV_PFX
1168                        "Unable to enumerate rfkill devices: %x\n", ret);
1169                 return ret;
1170         }
1171
1172         if (result & 0x1)
1173                 sony_nc_setup_rfkill(device, SONY_WIFI);
1174         if (result & 0x2)
1175                 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1176         if (result & 0x1c)
1177                 sony_nc_setup_rfkill(device, SONY_WWAN);
1178         if (result & 0x20)
1179                 sony_nc_setup_rfkill(device, SONY_WIMAX);
1180
1181         return 0;
1182 }
1183
1184 static int sony_nc_add(struct acpi_device *device)
1185 {
1186         acpi_status status;
1187         int result = 0;
1188         acpi_handle handle;
1189         struct sony_nc_value *item;
1190
1191         printk(KERN_INFO DRV_PFX "%s v%s.\n",
1192                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1193
1194         sony_nc_acpi_device = device;
1195         strcpy(acpi_device_class(device), "sony/hotkey");
1196
1197         sony_nc_acpi_handle = device->handle;
1198
1199         /* read device status */
1200         result = acpi_bus_get_status(device);
1201         /* bail IFF the above call was successful and the device is not present */
1202         if (!result && !device->status.present) {
1203                 dprintk("Device not present\n");
1204                 result = -ENODEV;
1205                 goto outwalk;
1206         }
1207
1208         if (debug) {
1209                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1210                                              1, sony_walk_callback, NULL, NULL);
1211                 if (ACPI_FAILURE(status)) {
1212                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1213                         result = -ENODEV;
1214                         goto outwalk;
1215                 }
1216         }
1217
1218         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1219                                          &handle))) {
1220                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1221                         dprintk("ECON Method failed\n");
1222         }
1223
1224         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1225                                          &handle))) {
1226                 dprintk("Doing SNC setup\n");
1227                 sony_nc_function_setup(device);
1228                 sony_nc_rfkill_setup(device);
1229         }
1230
1231         /* setup input devices and helper fifo */
1232         result = sony_laptop_setup_input(device);
1233         if (result) {
1234                 printk(KERN_ERR DRV_PFX
1235                                 "Unable to create input devices.\n");
1236                 goto outwalk;
1237         }
1238
1239         if (acpi_video_backlight_support()) {
1240                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1241                        "controlled by ACPI video driver\n");
1242         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1243                                                 &handle))) {
1244                 sony_backlight_device = backlight_device_register("sony", NULL,
1245                                                                   NULL,
1246                                                                   &sony_backlight_ops);
1247
1248                 if (IS_ERR(sony_backlight_device)) {
1249                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1250                         sony_backlight_device = NULL;
1251                 } else {
1252                         sony_backlight_device->props.brightness =
1253                             sony_backlight_get_brightness
1254                             (sony_backlight_device);
1255                         sony_backlight_device->props.max_brightness =
1256                             SONY_MAX_BRIGHTNESS - 1;
1257                 }
1258
1259         }
1260
1261         result = sony_pf_add();
1262         if (result)
1263                 goto outbacklight;
1264
1265         /* create sony_pf sysfs attributes related to the SNC device */
1266         for (item = sony_nc_values; item->name; ++item) {
1267
1268                 if (!debug && item->debug)
1269                         continue;
1270
1271                 /* find the available acpiget as described in the DSDT */
1272                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1273                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1274                                                          *item->acpiget,
1275                                                          &handle))) {
1276                                 dprintk("Found %s getter: %s\n",
1277                                                 item->name, *item->acpiget);
1278                                 item->devattr.attr.mode |= S_IRUGO;
1279                                 break;
1280                         }
1281                 }
1282
1283                 /* find the available acpiset as described in the DSDT */
1284                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1285                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1286                                                          *item->acpiset,
1287                                                          &handle))) {
1288                                 dprintk("Found %s setter: %s\n",
1289                                                 item->name, *item->acpiset);
1290                                 item->devattr.attr.mode |= S_IWUSR;
1291                                 break;
1292                         }
1293                 }
1294
1295                 if (item->devattr.attr.mode != 0) {
1296                         result =
1297                             device_create_file(&sony_pf_device->dev,
1298                                                &item->devattr);
1299                         if (result)
1300                                 goto out_sysfs;
1301                 }
1302         }
1303
1304         return 0;
1305
1306       out_sysfs:
1307         for (item = sony_nc_values; item->name; ++item) {
1308                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1309         }
1310         sony_pf_remove();
1311
1312       outbacklight:
1313         if (sony_backlight_device)
1314                 backlight_device_unregister(sony_backlight_device);
1315
1316         sony_laptop_remove_input();
1317
1318       outwalk:
1319         sony_nc_rfkill_cleanup();
1320         return result;
1321 }
1322
1323 static int sony_nc_remove(struct acpi_device *device, int type)
1324 {
1325         struct sony_nc_value *item;
1326
1327         if (sony_backlight_device)
1328                 backlight_device_unregister(sony_backlight_device);
1329
1330         sony_nc_acpi_device = NULL;
1331
1332         for (item = sony_nc_values; item->name; ++item) {
1333                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1334         }
1335
1336         sony_pf_remove();
1337         sony_laptop_remove_input();
1338         sony_nc_rfkill_cleanup();
1339         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1340
1341         return 0;
1342 }
1343
1344 static const struct acpi_device_id sony_device_ids[] = {
1345         {SONY_NC_HID, 0},
1346         {SONY_PIC_HID, 0},
1347         {"", 0},
1348 };
1349 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1350
1351 static const struct acpi_device_id sony_nc_device_ids[] = {
1352         {SONY_NC_HID, 0},
1353         {"", 0},
1354 };
1355
1356 static struct acpi_driver sony_nc_driver = {
1357         .name = SONY_NC_DRIVER_NAME,
1358         .class = SONY_NC_CLASS,
1359         .ids = sony_nc_device_ids,
1360         .owner = THIS_MODULE,
1361         .ops = {
1362                 .add = sony_nc_add,
1363                 .remove = sony_nc_remove,
1364                 .resume = sony_nc_resume,
1365                 .notify = sony_nc_notify,
1366                 },
1367 };
1368
1369 /*********** SPIC (SNY6001) Device ***********/
1370
1371 #define SONYPI_DEVICE_TYPE1     0x00000001
1372 #define SONYPI_DEVICE_TYPE2     0x00000002
1373 #define SONYPI_DEVICE_TYPE3     0x00000004
1374 #define SONYPI_DEVICE_TYPE4     0x00000008
1375
1376 #define SONYPI_TYPE1_OFFSET     0x04
1377 #define SONYPI_TYPE2_OFFSET     0x12
1378 #define SONYPI_TYPE3_OFFSET     0x12
1379
1380 struct sony_pic_ioport {
1381         struct acpi_resource_io io1;
1382         struct acpi_resource_io io2;
1383         struct list_head        list;
1384 };
1385
1386 struct sony_pic_irq {
1387         struct acpi_resource_irq        irq;
1388         struct list_head                list;
1389 };
1390
1391 struct sonypi_eventtypes {
1392         u8                      data;
1393         unsigned long           mask;
1394         struct sonypi_event     *events;
1395 };
1396
1397 struct sony_pic_dev {
1398         struct acpi_device              *acpi_dev;
1399         struct sony_pic_irq             *cur_irq;
1400         struct sony_pic_ioport          *cur_ioport;
1401         struct list_head                interrupts;
1402         struct list_head                ioports;
1403         struct mutex                    lock;
1404         struct sonypi_eventtypes        *event_types;
1405         int                             (*handle_irq)(const u8, const u8);
1406         int                             model;
1407         u16                             evport_offset;
1408         u8                              camera_power;
1409         u8                              bluetooth_power;
1410         u8                              wwan_power;
1411 };
1412
1413 static struct sony_pic_dev spic_dev = {
1414         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1415         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1416 };
1417
1418 static int spic_drv_registered;
1419
1420 /* Event masks */
1421 #define SONYPI_JOGGER_MASK                      0x00000001
1422 #define SONYPI_CAPTURE_MASK                     0x00000002
1423 #define SONYPI_FNKEY_MASK                       0x00000004
1424 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1425 #define SONYPI_PKEY_MASK                        0x00000010
1426 #define SONYPI_BACK_MASK                        0x00000020
1427 #define SONYPI_HELP_MASK                        0x00000040
1428 #define SONYPI_LID_MASK                         0x00000080
1429 #define SONYPI_ZOOM_MASK                        0x00000100
1430 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1431 #define SONYPI_MEYE_MASK                        0x00000400
1432 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1433 #define SONYPI_BATTERY_MASK                     0x00001000
1434 #define SONYPI_WIRELESS_MASK                    0x00002000
1435
1436 struct sonypi_event {
1437         u8      data;
1438         u8      event;
1439 };
1440
1441 /* The set of possible button release events */
1442 static struct sonypi_event sonypi_releaseev[] = {
1443         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1444         { 0, 0 }
1445 };
1446
1447 /* The set of possible jogger events  */
1448 static struct sonypi_event sonypi_joggerev[] = {
1449         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1450         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1451         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1452         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1453         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1454         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1455         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1456         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1457         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1458         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1459         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1460         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1461         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1462         { 0, 0 }
1463 };
1464
1465 /* The set of possible capture button events */
1466 static struct sonypi_event sonypi_captureev[] = {
1467         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1468         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1469         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1470         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1471         { 0, 0 }
1472 };
1473
1474 /* The set of possible fnkeys events */
1475 static struct sonypi_event sonypi_fnkeyev[] = {
1476         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1477         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1478         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1479         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1480         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1481         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1482         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1483         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1484         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1485         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1486         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1487         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1488         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1489         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1490         { 0x21, SONYPI_EVENT_FNKEY_1 },
1491         { 0x22, SONYPI_EVENT_FNKEY_2 },
1492         { 0x31, SONYPI_EVENT_FNKEY_D },
1493         { 0x32, SONYPI_EVENT_FNKEY_E },
1494         { 0x33, SONYPI_EVENT_FNKEY_F },
1495         { 0x34, SONYPI_EVENT_FNKEY_S },
1496         { 0x35, SONYPI_EVENT_FNKEY_B },
1497         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1498         { 0, 0 }
1499 };
1500
1501 /* The set of possible program key events */
1502 static struct sonypi_event sonypi_pkeyev[] = {
1503         { 0x01, SONYPI_EVENT_PKEY_P1 },
1504         { 0x02, SONYPI_EVENT_PKEY_P2 },
1505         { 0x04, SONYPI_EVENT_PKEY_P3 },
1506         { 0x20, SONYPI_EVENT_PKEY_P1 },
1507         { 0, 0 }
1508 };
1509
1510 /* The set of possible bluetooth events */
1511 static struct sonypi_event sonypi_blueev[] = {
1512         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1513         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1514         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1515         { 0, 0 }
1516 };
1517
1518 /* The set of possible wireless events */
1519 static struct sonypi_event sonypi_wlessev[] = {
1520         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1521         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1522         { 0, 0 }
1523 };
1524
1525 /* The set of possible back button events */
1526 static struct sonypi_event sonypi_backev[] = {
1527         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1528         { 0, 0 }
1529 };
1530
1531 /* The set of possible help button events */
1532 static struct sonypi_event sonypi_helpev[] = {
1533         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1534         { 0, 0 }
1535 };
1536
1537
1538 /* The set of possible lid events */
1539 static struct sonypi_event sonypi_lidev[] = {
1540         { 0x51, SONYPI_EVENT_LID_CLOSED },
1541         { 0x50, SONYPI_EVENT_LID_OPENED },
1542         { 0, 0 }
1543 };
1544
1545 /* The set of possible zoom events */
1546 static struct sonypi_event sonypi_zoomev[] = {
1547         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1548         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1549         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1550         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1551         { 0, 0 }
1552 };
1553
1554 /* The set of possible thumbphrase events */
1555 static struct sonypi_event sonypi_thumbphraseev[] = {
1556         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1557         { 0, 0 }
1558 };
1559
1560 /* The set of possible motioneye camera events */
1561 static struct sonypi_event sonypi_meyeev[] = {
1562         { 0x00, SONYPI_EVENT_MEYE_FACE },
1563         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1564         { 0, 0 }
1565 };
1566
1567 /* The set of possible memorystick events */
1568 static struct sonypi_event sonypi_memorystickev[] = {
1569         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1570         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1571         { 0, 0 }
1572 };
1573
1574 /* The set of possible battery events */
1575 static struct sonypi_event sonypi_batteryev[] = {
1576         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1577         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1578         { 0, 0 }
1579 };
1580
1581 /* The set of possible volume events */
1582 static struct sonypi_event sonypi_volumeev[] = {
1583         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1584         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1585         { 0, 0 }
1586 };
1587
1588 /* The set of possible brightness events */
1589 static struct sonypi_event sonypi_brightnessev[] = {
1590         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1591         { 0, 0 }
1592 };
1593
1594 static struct sonypi_eventtypes type1_events[] = {
1595         { 0, 0xffffffff, sonypi_releaseev },
1596         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1597         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1598         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1599         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1600         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1601         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1602         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1603         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1604         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1605         { 0 },
1606 };
1607 static struct sonypi_eventtypes type2_events[] = {
1608         { 0, 0xffffffff, sonypi_releaseev },
1609         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1610         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1611         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1612         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1613         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1614         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1615         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1616         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1617         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1618         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1619         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1620         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1621         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1622         { 0 },
1623 };
1624 static struct sonypi_eventtypes type3_events[] = {
1625         { 0, 0xffffffff, sonypi_releaseev },
1626         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1627         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1628         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1629         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1630         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1631         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1632         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1633         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1634         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1635         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1636         { 0 },
1637 };
1638
1639 /* low level spic calls */
1640 #define ITERATIONS_LONG         10000
1641 #define ITERATIONS_SHORT        10
1642 #define wait_on_command(command, iterations) {                          \
1643         unsigned int n = iterations;                                    \
1644         while (--n && (command))                                        \
1645                 udelay(1);                                              \
1646         if (!n)                                                         \
1647                 dprintk("command failed at %s : %s (line %d)\n",        \
1648                                 __FILE__, __func__, __LINE__);  \
1649 }
1650
1651 static u8 sony_pic_call1(u8 dev)
1652 {
1653         u8 v1, v2;
1654
1655         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1656                         ITERATIONS_LONG);
1657         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1658         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1659         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1660         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1661         return v2;
1662 }
1663
1664 static u8 sony_pic_call2(u8 dev, u8 fn)
1665 {
1666         u8 v1;
1667
1668         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1669                         ITERATIONS_LONG);
1670         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1671         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1672                         ITERATIONS_LONG);
1673         outb(fn, spic_dev.cur_ioport->io1.minimum);
1674         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1675         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1676         return v1;
1677 }
1678
1679 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1680 {
1681         u8 v1;
1682
1683         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1684         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1685         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1686         outb(fn, spic_dev.cur_ioport->io1.minimum);
1687         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1688         outb(v, spic_dev.cur_ioport->io1.minimum);
1689         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1690         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1691                         dev, fn, v, v1);
1692         return v1;
1693 }
1694
1695 /*
1696  * minidrivers for SPIC models
1697  */
1698 static int type3_handle_irq(const u8 data_mask, const u8 ev)
1699 {
1700         /*
1701          * 0x31 could mean we have to take some extra action and wait for
1702          * the next irq for some Type3 models, it will generate a new
1703          * irq and we can read new data from the device:
1704          *  - 0x5c and 0x5f requires 0xA0
1705          *  - 0x61 requires 0xB3
1706          */
1707         if (data_mask == 0x31) {
1708                 if (ev == 0x5c || ev == 0x5f)
1709                         sony_pic_call1(0xA0);
1710                 else if (ev == 0x61)
1711                         sony_pic_call1(0xB3);
1712                 return 0;
1713         }
1714         return 1;
1715 }
1716
1717 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1718 {
1719         struct pci_dev *pcidev;
1720
1721         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1722                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1723         if (pcidev) {
1724                 dev->model = SONYPI_DEVICE_TYPE1;
1725                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
1726                 dev->event_types = type1_events;
1727                 goto out;
1728         }
1729
1730         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1731                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1732         if (pcidev) {
1733                 dev->model = SONYPI_DEVICE_TYPE2;
1734                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1735                 dev->event_types = type2_events;
1736                 goto out;
1737         }
1738
1739         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1740                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1741         if (pcidev) {
1742                 dev->model = SONYPI_DEVICE_TYPE3;
1743                 dev->handle_irq = type3_handle_irq;
1744                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1745                 dev->event_types = type3_events;
1746                 goto out;
1747         }
1748
1749         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1750                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1751         if (pcidev) {
1752                 dev->model = SONYPI_DEVICE_TYPE3;
1753                 dev->handle_irq = type3_handle_irq;
1754                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1755                 dev->event_types = type3_events;
1756                 goto out;
1757         }
1758
1759         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1760                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1761         if (pcidev) {
1762                 dev->model = SONYPI_DEVICE_TYPE3;
1763                 dev->handle_irq = type3_handle_irq;
1764                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1765                 dev->event_types = type3_events;
1766                 goto out;
1767         }
1768
1769         /* default */
1770         dev->model = SONYPI_DEVICE_TYPE2;
1771         dev->evport_offset = SONYPI_TYPE2_OFFSET;
1772         dev->event_types = type2_events;
1773
1774 out:
1775         if (pcidev)
1776                 pci_dev_put(pcidev);
1777
1778         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1779                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
1780                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1781 }
1782
1783 /* camera tests and poweron/poweroff */
1784 #define SONYPI_CAMERA_PICTURE           5
1785 #define SONYPI_CAMERA_CONTROL           0x10
1786
1787 #define SONYPI_CAMERA_BRIGHTNESS                0
1788 #define SONYPI_CAMERA_CONTRAST                  1
1789 #define SONYPI_CAMERA_HUE                       2
1790 #define SONYPI_CAMERA_COLOR                     3
1791 #define SONYPI_CAMERA_SHARPNESS                 4
1792
1793 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1794 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1795 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1796 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1797
1798 /* the rest don't need a loop until not 0xff */
1799 #define SONYPI_CAMERA_AGC                       6
1800 #define SONYPI_CAMERA_AGC_MASK                  0x30
1801 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1802
1803 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1804 #define SONYPI_CAMERA_CONTROL                   0x10
1805
1806 #define SONYPI_CAMERA_STATUS                    7
1807 #define SONYPI_CAMERA_STATUS_READY              0x2
1808 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1809
1810 #define SONYPI_DIRECTION_BACKWARDS              0x4
1811
1812 #define SONYPI_CAMERA_REVISION                  8
1813 #define SONYPI_CAMERA_ROMVERSION                9
1814
1815 static int __sony_pic_camera_ready(void)
1816 {
1817         u8 v;
1818
1819         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1820         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1821 }
1822
1823 static int __sony_pic_camera_off(void)
1824 {
1825         if (!camera) {
1826                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1827                 return -ENODEV;
1828         }
1829
1830         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1831                                 SONYPI_CAMERA_MUTE_MASK),
1832                         ITERATIONS_SHORT);
1833
1834         if (spic_dev.camera_power) {
1835                 sony_pic_call2(0x91, 0);
1836                 spic_dev.camera_power = 0;
1837         }
1838         return 0;
1839 }
1840
1841 static int __sony_pic_camera_on(void)
1842 {
1843         int i, j, x;
1844
1845         if (!camera) {
1846                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1847                 return -ENODEV;
1848         }
1849
1850         if (spic_dev.camera_power)
1851                 return 0;
1852
1853         for (j = 5; j > 0; j--) {
1854
1855                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1856                         msleep(10);
1857                 sony_pic_call1(0x93);
1858
1859                 for (i = 400; i > 0; i--) {
1860                         if (__sony_pic_camera_ready())
1861                                 break;
1862                         msleep(10);
1863                 }
1864                 if (i)
1865                         break;
1866         }
1867
1868         if (j == 0) {
1869                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1870                 return -ENODEV;
1871         }
1872
1873         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1874                                 0x5a),
1875                         ITERATIONS_SHORT);
1876
1877         spic_dev.camera_power = 1;
1878         return 0;
1879 }
1880
1881 /* External camera command (exported to the motion eye v4l driver) */
1882 int sony_pic_camera_command(int command, u8 value)
1883 {
1884         if (!camera)
1885                 return -EIO;
1886
1887         mutex_lock(&spic_dev.lock);
1888
1889         switch (command) {
1890         case SONY_PIC_COMMAND_SETCAMERA:
1891                 if (value)
1892                         __sony_pic_camera_on();
1893                 else
1894                         __sony_pic_camera_off();
1895                 break;
1896         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1897                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1898                                 ITERATIONS_SHORT);
1899                 break;
1900         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1901                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1902                                 ITERATIONS_SHORT);
1903                 break;
1904         case SONY_PIC_COMMAND_SETCAMERAHUE:
1905                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1906                                 ITERATIONS_SHORT);
1907                 break;
1908         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1909                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1910                                 ITERATIONS_SHORT);
1911                 break;
1912         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1913                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1914                                 ITERATIONS_SHORT);
1915                 break;
1916         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1917                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1918                                 ITERATIONS_SHORT);
1919                 break;
1920         case SONY_PIC_COMMAND_SETCAMERAAGC:
1921                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1922                                 ITERATIONS_SHORT);
1923                 break;
1924         default:
1925                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1926                        command);
1927                 break;
1928         }
1929         mutex_unlock(&spic_dev.lock);
1930         return 0;
1931 }
1932 EXPORT_SYMBOL(sony_pic_camera_command);
1933
1934 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1935 static void __sony_pic_set_wwanpower(u8 state)
1936 {
1937         state = !!state;
1938         if (spic_dev.wwan_power == state)
1939                 return;
1940         sony_pic_call2(0xB0, state);
1941         sony_pic_call1(0x82);
1942         spic_dev.wwan_power = state;
1943 }
1944
1945 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1946                 struct device_attribute *attr,
1947                 const char *buffer, size_t count)
1948 {
1949         unsigned long value;
1950         if (count > 31)
1951                 return -EINVAL;
1952
1953         value = simple_strtoul(buffer, NULL, 10);
1954         mutex_lock(&spic_dev.lock);
1955         __sony_pic_set_wwanpower(value);
1956         mutex_unlock(&spic_dev.lock);
1957
1958         return count;
1959 }
1960
1961 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1962                 struct device_attribute *attr, char *buffer)
1963 {
1964         ssize_t count;
1965         mutex_lock(&spic_dev.lock);
1966         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1967         mutex_unlock(&spic_dev.lock);
1968         return count;
1969 }
1970
1971 /* bluetooth subsystem power state */
1972 static void __sony_pic_set_bluetoothpower(u8 state)
1973 {
1974         state = !!state;
1975         if (spic_dev.bluetooth_power == state)
1976                 return;
1977         sony_pic_call2(0x96, state);
1978         sony_pic_call1(0x82);
1979         spic_dev.bluetooth_power = state;
1980 }
1981
1982 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1983                 struct device_attribute *attr,
1984                 const char *buffer, size_t count)
1985 {
1986         unsigned long value;
1987         if (count > 31)
1988                 return -EINVAL;
1989
1990         value = simple_strtoul(buffer, NULL, 10);
1991         mutex_lock(&spic_dev.lock);
1992         __sony_pic_set_bluetoothpower(value);
1993         mutex_unlock(&spic_dev.lock);
1994
1995         return count;
1996 }
1997
1998 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1999                 struct device_attribute *attr, char *buffer)
2000 {
2001         ssize_t count = 0;
2002         mutex_lock(&spic_dev.lock);
2003         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2004         mutex_unlock(&spic_dev.lock);
2005         return count;
2006 }
2007
2008 /* fan speed */
2009 /* FAN0 information (reverse engineered from ACPI tables) */
2010 #define SONY_PIC_FAN0_STATUS    0x93
2011 static int sony_pic_set_fanspeed(unsigned long value)
2012 {
2013         return ec_write(SONY_PIC_FAN0_STATUS, value);
2014 }
2015
2016 static int sony_pic_get_fanspeed(u8 *value)
2017 {
2018         return ec_read(SONY_PIC_FAN0_STATUS, value);
2019 }
2020
2021 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2022                 struct device_attribute *attr,
2023                 const char *buffer, size_t count)
2024 {
2025         unsigned long value;
2026         if (count > 31)
2027                 return -EINVAL;
2028
2029         value = simple_strtoul(buffer, NULL, 10);
2030         if (sony_pic_set_fanspeed(value))
2031                 return -EIO;
2032
2033         return count;
2034 }
2035
2036 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2037                 struct device_attribute *attr, char *buffer)
2038 {
2039         u8 value = 0;
2040         if (sony_pic_get_fanspeed(&value))
2041                 return -EIO;
2042
2043         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2044 }
2045
2046 #define SPIC_ATTR(_name, _mode)                                 \
2047 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2048                 _mode, sony_pic_## _name ##_show,               \
2049                 sony_pic_## _name ##_store)
2050
2051 static SPIC_ATTR(bluetoothpower, 0644);
2052 static SPIC_ATTR(wwanpower, 0644);
2053 static SPIC_ATTR(fanspeed, 0644);
2054
2055 static struct attribute *spic_attributes[] = {
2056         &spic_attr_bluetoothpower.attr,
2057         &spic_attr_wwanpower.attr,
2058         &spic_attr_fanspeed.attr,
2059         NULL
2060 };
2061
2062 static struct attribute_group spic_attribute_group = {
2063         .attrs = spic_attributes
2064 };
2065
2066 /******** SONYPI compatibility **********/
2067 #ifdef CONFIG_SONYPI_COMPAT
2068
2069 /* battery / brightness / temperature  addresses */
2070 #define SONYPI_BAT_FLAGS        0x81
2071 #define SONYPI_LCD_LIGHT        0x96
2072 #define SONYPI_BAT1_PCTRM       0xa0
2073 #define SONYPI_BAT1_LEFT        0xa2
2074 #define SONYPI_BAT1_MAXRT       0xa4
2075 #define SONYPI_BAT2_PCTRM       0xa8
2076 #define SONYPI_BAT2_LEFT        0xaa
2077 #define SONYPI_BAT2_MAXRT       0xac
2078 #define SONYPI_BAT1_MAXTK       0xb0
2079 #define SONYPI_BAT1_FULL        0xb2
2080 #define SONYPI_BAT2_MAXTK       0xb8
2081 #define SONYPI_BAT2_FULL        0xba
2082 #define SONYPI_TEMP_STATUS      0xC1
2083
2084 struct sonypi_compat_s {
2085         struct fasync_struct    *fifo_async;
2086         struct kfifo            *fifo;
2087         spinlock_t              fifo_lock;
2088         wait_queue_head_t       fifo_proc_list;
2089         atomic_t                open_count;
2090 };
2091 static struct sonypi_compat_s sonypi_compat = {
2092         .open_count = ATOMIC_INIT(0),
2093 };
2094
2095 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2096 {
2097         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2098 }
2099
2100 static int sonypi_misc_release(struct inode *inode, struct file *file)
2101 {
2102         atomic_dec(&sonypi_compat.open_count);
2103         return 0;
2104 }
2105
2106 static int sonypi_misc_open(struct inode *inode, struct file *file)
2107 {
2108         /* Flush input queue on first open */
2109         unsigned long flags;
2110
2111         spin_lock_irqsave(sonypi_compat.fifo->lock, flags);
2112
2113         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2114                 __kfifo_reset(sonypi_compat.fifo);
2115
2116         spin_unlock_irqrestore(sonypi_compat.fifo->lock, flags);
2117
2118         return 0;
2119 }
2120
2121 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2122                                 size_t count, loff_t *pos)
2123 {
2124         ssize_t ret;
2125         unsigned char c;
2126
2127         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
2128             (file->f_flags & O_NONBLOCK))
2129                 return -EAGAIN;
2130
2131         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2132                                        kfifo_len(sonypi_compat.fifo) != 0);
2133         if (ret)
2134                 return ret;
2135
2136         while (ret < count &&
2137                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
2138                 if (put_user(c, buf++))
2139                         return -EFAULT;
2140                 ret++;
2141         }
2142
2143         if (ret > 0) {
2144                 struct inode *inode = file->f_path.dentry->d_inode;
2145                 inode->i_atime = current_fs_time(inode->i_sb);
2146         }
2147
2148         return ret;
2149 }
2150
2151 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2152 {
2153         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2154         if (kfifo_len(sonypi_compat.fifo))
2155                 return POLLIN | POLLRDNORM;
2156         return 0;
2157 }
2158
2159 static int ec_read16(u8 addr, u16 *value)
2160 {
2161         u8 val_lb, val_hb;
2162         if (ec_read(addr, &val_lb))
2163                 return -1;
2164         if (ec_read(addr + 1, &val_hb))
2165                 return -1;
2166         *value = val_lb | (val_hb << 8);
2167         return 0;
2168 }
2169
2170 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2171                                                         unsigned long arg)
2172 {
2173         int ret = 0;
2174         void __user *argp = (void __user *)arg;
2175         u8 val8;
2176         u16 val16;
2177         int value;
2178
2179         mutex_lock(&spic_dev.lock);
2180         switch (cmd) {
2181         case SONYPI_IOCGBRT:
2182                 if (sony_backlight_device == NULL) {
2183                         ret = -EIO;
2184                         break;
2185                 }
2186                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2187                         ret = -EIO;
2188                         break;
2189                 }
2190                 val8 = ((value & 0xff) - 1) << 5;
2191                 if (copy_to_user(argp, &val8, sizeof(val8)))
2192                                 ret = -EFAULT;
2193                 break;
2194         case SONYPI_IOCSBRT:
2195                 if (sony_backlight_device == NULL) {
2196                         ret = -EIO;
2197                         break;
2198                 }
2199                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2200                         ret = -EFAULT;
2201                         break;
2202                 }
2203                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2204                                 (val8 >> 5) + 1, NULL)) {
2205                         ret = -EIO;
2206                         break;
2207                 }
2208                 /* sync the backlight device status */
2209                 sony_backlight_device->props.brightness =
2210                     sony_backlight_get_brightness(sony_backlight_device);
2211                 break;
2212         case SONYPI_IOCGBAT1CAP:
2213                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2214                         ret = -EIO;
2215                         break;
2216                 }
2217                 if (copy_to_user(argp, &val16, sizeof(val16)))
2218                         ret = -EFAULT;
2219                 break;
2220         case SONYPI_IOCGBAT1REM:
2221                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2222                         ret = -EIO;
2223                         break;
2224                 }
2225                 if (copy_to_user(argp, &val16, sizeof(val16)))
2226                         ret = -EFAULT;
2227                 break;
2228         case SONYPI_IOCGBAT2CAP:
2229                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2230                         ret = -EIO;
2231                         break;
2232                 }
2233                 if (copy_to_user(argp, &val16, sizeof(val16)))
2234                         ret = -EFAULT;
2235                 break;
2236         case SONYPI_IOCGBAT2REM:
2237                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2238                         ret = -EIO;
2239                         break;
2240                 }
2241                 if (copy_to_user(argp, &val16, sizeof(val16)))
2242                         ret = -EFAULT;
2243                 break;
2244         case SONYPI_IOCGBATFLAGS:
2245                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2246                         ret = -EIO;
2247                         break;
2248                 }
2249                 val8 &= 0x07;
2250                 if (copy_to_user(argp, &val8, sizeof(val8)))
2251                         ret = -EFAULT;
2252                 break;
2253         case SONYPI_IOCGBLUE:
2254                 val8 = spic_dev.bluetooth_power;
2255                 if (copy_to_user(argp, &val8, sizeof(val8)))
2256                         ret = -EFAULT;
2257                 break;
2258         case SONYPI_IOCSBLUE:
2259                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2260                         ret = -EFAULT;
2261                         break;
2262                 }
2263                 __sony_pic_set_bluetoothpower(val8);
2264                 break;
2265         /* FAN Controls */
2266         case SONYPI_IOCGFAN:
2267                 if (sony_pic_get_fanspeed(&val8)) {
2268                         ret = -EIO;
2269                         break;
2270                 }
2271                 if (copy_to_user(argp, &val8, sizeof(val8)))
2272                         ret = -EFAULT;
2273                 break;
2274         case SONYPI_IOCSFAN:
2275                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2276                         ret = -EFAULT;
2277                         break;
2278                 }
2279                 if (sony_pic_set_fanspeed(val8))
2280                         ret = -EIO;
2281                 break;
2282         /* GET Temperature (useful under APM) */
2283         case SONYPI_IOCGTEMP:
2284                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2285                         ret = -EIO;
2286                         break;
2287                 }
2288                 if (copy_to_user(argp, &val8, sizeof(val8)))
2289                         ret = -EFAULT;
2290                 break;
2291         default:
2292                 ret = -EINVAL;
2293         }
2294         mutex_unlock(&spic_dev.lock);
2295         return ret;
2296 }
2297
2298 static const struct file_operations sonypi_misc_fops = {
2299         .owner          = THIS_MODULE,
2300         .read           = sonypi_misc_read,
2301         .poll           = sonypi_misc_poll,
2302         .open           = sonypi_misc_open,
2303         .release        = sonypi_misc_release,
2304         .fasync         = sonypi_misc_fasync,
2305         .unlocked_ioctl = sonypi_misc_ioctl,
2306 };
2307
2308 static struct miscdevice sonypi_misc_device = {
2309         .minor          = MISC_DYNAMIC_MINOR,
2310         .name           = "sonypi",
2311         .fops           = &sonypi_misc_fops,
2312 };
2313
2314 static void sonypi_compat_report_event(u8 event)
2315 {
2316         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2317         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2318         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2319 }
2320
2321 static int sonypi_compat_init(void)
2322 {
2323         int error;
2324
2325         spin_lock_init(&sonypi_compat.fifo_lock);
2326         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2327                                          &sonypi_compat.fifo_lock);
2328         if (IS_ERR(sonypi_compat.fifo)) {
2329                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2330                 return PTR_ERR(sonypi_compat.fifo);
2331         }
2332
2333         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2334
2335         if (minor != -1)
2336                 sonypi_misc_device.minor = minor;
2337         error = misc_register(&sonypi_misc_device);
2338         if (error) {
2339                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2340                 goto err_free_kfifo;
2341         }
2342         if (minor == -1)
2343                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2344                        sonypi_misc_device.minor);
2345
2346         return 0;
2347
2348 err_free_kfifo:
2349         kfifo_free(sonypi_compat.fifo);
2350         return error;
2351 }
2352
2353 static void sonypi_compat_exit(void)
2354 {
2355         misc_deregister(&sonypi_misc_device);
2356         kfifo_free(sonypi_compat.fifo);
2357 }
2358 #else
2359 static int sonypi_compat_init(void) { return 0; }
2360 static void sonypi_compat_exit(void) { }
2361 static void sonypi_compat_report_event(u8 event) { }
2362 #endif /* CONFIG_SONYPI_COMPAT */
2363
2364 /*
2365  * ACPI callbacks
2366  */
2367 static acpi_status
2368 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2369 {
2370         u32 i;
2371         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2372
2373         switch (resource->type) {
2374         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2375                 {
2376                         /* start IO enumeration */
2377                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2378                         if (!ioport)
2379                                 return AE_ERROR;
2380
2381                         list_add(&ioport->list, &dev->ioports);
2382                         return AE_OK;
2383                 }
2384
2385         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2386                 /* end IO enumeration */
2387                 return AE_OK;
2388
2389         case ACPI_RESOURCE_TYPE_IRQ:
2390                 {
2391                         struct acpi_resource_irq *p = &resource->data.irq;
2392                         struct sony_pic_irq *interrupt = NULL;
2393                         if (!p || !p->interrupt_count) {
2394                                 /*
2395                                  * IRQ descriptors may have no IRQ# bits set,
2396                                  * particularly those those w/ _STA disabled
2397                                  */
2398                                 dprintk("Blank IRQ resource\n");
2399                                 return AE_OK;
2400                         }
2401                         for (i = 0; i < p->interrupt_count; i++) {
2402                                 if (!p->interrupts[i]) {
2403                                         printk(KERN_WARNING DRV_PFX
2404                                                         "Invalid IRQ %d\n",
2405                                                         p->interrupts[i]);
2406                                         continue;
2407                                 }
2408                                 interrupt = kzalloc(sizeof(*interrupt),
2409                                                 GFP_KERNEL);
2410                                 if (!interrupt)
2411                                         return AE_ERROR;
2412
2413                                 list_add(&interrupt->list, &dev->interrupts);
2414                                 interrupt->irq.triggering = p->triggering;
2415                                 interrupt->irq.polarity = p->polarity;
2416                                 interrupt->irq.sharable = p->sharable;
2417                                 interrupt->irq.interrupt_count = 1;
2418                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2419                         }
2420                         return AE_OK;
2421                 }
2422         case ACPI_RESOURCE_TYPE_IO:
2423                 {
2424                         struct acpi_resource_io *io = &resource->data.io;
2425                         struct sony_pic_ioport *ioport =
2426                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2427                         if (!io) {
2428                                 dprintk("Blank IO resource\n");
2429                                 return AE_OK;
2430                         }
2431
2432                         if (!ioport->io1.minimum) {
2433                                 memcpy(&ioport->io1, io, sizeof(*io));
2434                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2435                                                 ioport->io1.address_length);
2436                         }
2437                         else if (!ioport->io2.minimum) {
2438                                 memcpy(&ioport->io2, io, sizeof(*io));
2439                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2440                                                 ioport->io2.address_length);
2441                         }
2442                         else {
2443                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2444                                 return AE_ERROR;
2445                         }
2446                         return AE_OK;
2447                 }
2448         default:
2449                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2450                                 resource->type);
2451
2452         case ACPI_RESOURCE_TYPE_END_TAG:
2453                 return AE_OK;
2454         }
2455         return AE_CTRL_TERMINATE;
2456 }
2457
2458 static int sony_pic_possible_resources(struct acpi_device *device)
2459 {
2460         int result = 0;
2461         acpi_status status = AE_OK;
2462
2463         if (!device)
2464                 return -EINVAL;
2465
2466         /* get device status */
2467         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2468         dprintk("Evaluating _STA\n");
2469         result = acpi_bus_get_status(device);
2470         if (result) {
2471                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2472                 goto end;
2473         }
2474
2475         if (!device->status.enabled)
2476                 dprintk("Device disabled\n");
2477         else
2478                 dprintk("Device enabled\n");
2479
2480         /*
2481          * Query and parse 'method'
2482          */
2483         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2484         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2485                         sony_pic_read_possible_resource, &spic_dev);
2486         if (ACPI_FAILURE(status)) {
2487                 printk(KERN_WARNING DRV_PFX
2488                                 "Failure evaluating %s\n",
2489                                 METHOD_NAME__PRS);
2490                 result = -ENODEV;
2491         }
2492 end:
2493         return result;
2494 }
2495
2496 /*
2497  *  Disable the spic device by calling its _DIS method
2498  */
2499 static int sony_pic_disable(struct acpi_device *device)
2500 {
2501         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2502                                                NULL);
2503
2504         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2505                 return -ENXIO;
2506
2507         dprintk("Device disabled\n");
2508         return 0;
2509 }
2510
2511
2512 /*
2513  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2514  *
2515  *  Call _SRS to set current resources
2516  */
2517 static int sony_pic_enable(struct acpi_device *device,
2518                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2519 {
2520         acpi_status status;
2521         int result = 0;
2522         /* Type 1 resource layout is:
2523          *    IO
2524          *    IO
2525          *    IRQNoFlags
2526          *    End
2527          *
2528          * Type 2 and 3 resource layout is:
2529          *    IO
2530          *    IRQNoFlags
2531          *    End
2532          */
2533         struct {
2534                 struct acpi_resource res1;
2535                 struct acpi_resource res2;
2536                 struct acpi_resource res3;
2537                 struct acpi_resource res4;
2538         } *resource;
2539         struct acpi_buffer buffer = { 0, NULL };
2540
2541         if (!ioport || !irq)
2542                 return -EINVAL;
2543
2544         /* init acpi_buffer */
2545         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2546         if (!resource)
2547                 return -ENOMEM;
2548
2549         buffer.length = sizeof(*resource) + 1;
2550         buffer.pointer = resource;
2551
2552         /* setup Type 1 resources */
2553         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2554
2555                 /* setup io resources */
2556                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2557                 resource->res1.length = sizeof(struct acpi_resource);
2558                 memcpy(&resource->res1.data.io, &ioport->io1,
2559                                 sizeof(struct acpi_resource_io));
2560
2561                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2562                 resource->res2.length = sizeof(struct acpi_resource);
2563                 memcpy(&resource->res2.data.io, &ioport->io2,
2564                                 sizeof(struct acpi_resource_io));
2565
2566                 /* setup irq resource */
2567                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2568                 resource->res3.length = sizeof(struct acpi_resource);
2569                 memcpy(&resource->res3.data.irq, &irq->irq,
2570                                 sizeof(struct acpi_resource_irq));
2571                 /* we requested a shared irq */
2572                 resource->res3.data.irq.sharable = ACPI_SHARED;
2573
2574                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2575
2576         }
2577         /* setup Type 2/3 resources */
2578         else {
2579                 /* setup io resource */
2580                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2581                 resource->res1.length = sizeof(struct acpi_resource);
2582                 memcpy(&resource->res1.data.io, &ioport->io1,
2583                                 sizeof(struct acpi_resource_io));
2584
2585                 /* setup irq resource */
2586                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2587                 resource->res2.length = sizeof(struct acpi_resource);
2588                 memcpy(&resource->res2.data.irq, &irq->irq,
2589                                 sizeof(struct acpi_resource_irq));
2590                 /* we requested a shared irq */
2591                 resource->res2.data.irq.sharable = ACPI_SHARED;
2592
2593                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2594         }
2595
2596         /* Attempt to set the resource */
2597         dprintk("Evaluating _SRS\n");
2598         status = acpi_set_current_resources(device->handle, &buffer);
2599
2600         /* check for total failure */
2601         if (ACPI_FAILURE(status)) {
2602                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2603                 result = -ENODEV;
2604                 goto end;
2605         }
2606
2607         /* Necessary device initializations calls (from sonypi) */
2608         sony_pic_call1(0x82);
2609         sony_pic_call2(0x81, 0xff);
2610         sony_pic_call1(compat ? 0x92 : 0x82);
2611
2612 end:
2613         kfree(resource);
2614         return result;
2615 }
2616
2617 /*****************
2618  *
2619  * ISR: some event is available
2620  *
2621  *****************/
2622 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2623 {
2624         int i, j;
2625         u8 ev = 0;
2626         u8 data_mask = 0;
2627         u8 device_event = 0;
2628
2629         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2630
2631         ev = inb_p(dev->cur_ioport->io1.minimum);
2632         if (dev->cur_ioport->io2.minimum)
2633                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2634         else
2635                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2636                                 dev->evport_offset);
2637
2638         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2639                         ev, data_mask, dev->cur_ioport->io1.minimum,
2640                         dev->evport_offset);
2641
2642         if (ev == 0x00 || ev == 0xff)
2643                 return IRQ_HANDLED;
2644
2645         for (i = 0; dev->event_types[i].mask; i++) {
2646
2647                 if ((data_mask & dev->event_types[i].data) !=
2648                     dev->event_types[i].data)
2649                         continue;
2650
2651                 if (!(mask & dev->event_types[i].mask))
2652                         continue;
2653
2654                 for (j = 0; dev->event_types[i].events[j].event; j++) {
2655                         if (ev == dev->event_types[i].events[j].data) {
2656                                 device_event =
2657                                         dev->event_types[i].events[j].event;
2658                                 goto found;
2659                         }
2660                 }
2661         }
2662         /* Still not able to decode the event try to pass
2663          * it over to the minidriver
2664          */
2665         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
2666                 return IRQ_HANDLED;
2667
2668         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2669                         ev, data_mask, dev->cur_ioport->io1.minimum,
2670                         dev->evport_offset);
2671         return IRQ_HANDLED;
2672
2673 found:
2674         sony_laptop_report_input_event(device_event);
2675         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2676         sonypi_compat_report_event(device_event);
2677
2678         return IRQ_HANDLED;
2679 }
2680
2681 /*****************
2682  *
2683  *  ACPI driver
2684  *
2685  *****************/
2686 static int sony_pic_remove(struct acpi_device *device, int type)
2687 {
2688         struct sony_pic_ioport *io, *tmp_io;
2689         struct sony_pic_irq *irq, *tmp_irq;
2690
2691         if (sony_pic_disable(device)) {
2692                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2693                 return -ENXIO;
2694         }
2695
2696         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2697         release_region(spic_dev.cur_ioport->io1.minimum,
2698                         spic_dev.cur_ioport->io1.address_length);
2699         if (spic_dev.cur_ioport->io2.minimum)
2700                 release_region(spic_dev.cur_ioport->io2.minimum,
2701                                 spic_dev.cur_ioport->io2.address_length);
2702
2703         sonypi_compat_exit();
2704
2705         sony_laptop_remove_input();
2706
2707         /* pf attrs */
2708         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2709         sony_pf_remove();
2710
2711         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2712                 list_del(&io->list);
2713                 kfree(io);
2714         }
2715         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2716                 list_del(&irq->list);
2717                 kfree(irq);
2718         }
2719         spic_dev.cur_ioport = NULL;
2720         spic_dev.cur_irq = NULL;
2721
2722         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2723         return 0;
2724 }
2725
2726 static int sony_pic_add(struct acpi_device *device)
2727 {
2728         int result;
2729         struct sony_pic_ioport *io, *tmp_io;
2730         struct sony_pic_irq *irq, *tmp_irq;
2731
2732         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2733                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2734
2735         spic_dev.acpi_dev = device;
2736         strcpy(acpi_device_class(device), "sony/hotkey");
2737         sony_pic_detect_device_type(&spic_dev);
2738         mutex_init(&spic_dev.lock);
2739
2740         /* read _PRS resources */
2741         result = sony_pic_possible_resources(device);
2742         if (result) {
2743                 printk(KERN_ERR DRV_PFX
2744                                 "Unable to read possible resources.\n");
2745                 goto err_free_resources;
2746         }
2747
2748         /* setup input devices and helper fifo */
2749         result = sony_laptop_setup_input(device);
2750         if (result) {
2751                 printk(KERN_ERR DRV_PFX
2752                                 "Unable to create input devices.\n");
2753                 goto err_free_resources;
2754         }
2755
2756         if (sonypi_compat_init())
2757                 goto err_remove_input;
2758
2759         /* request io port */
2760         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2761                 if (request_region(io->io1.minimum, io->io1.address_length,
2762                                         "Sony Programable I/O Device")) {
2763                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2764                                         io->io1.minimum, io->io1.maximum,
2765                                         io->io1.address_length);
2766                         /* Type 1 have 2 ioports */
2767                         if (io->io2.minimum) {
2768                                 if (request_region(io->io2.minimum,
2769                                                 io->io2.address_length,
2770                                                 "Sony Programable I/O Device")) {
2771                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2772                                                         io->io2.minimum, io->io2.maximum,
2773                                                         io->io2.address_length);
2774                                         spic_dev.cur_ioport = io;
2775                                         break;
2776                                 }
2777                                 else {
2778                                         dprintk("Unable to get I/O port2: "
2779                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2780                                                         io->io2.minimum, io->io2.maximum,
2781                                                         io->io2.address_length);
2782                                         release_region(io->io1.minimum,
2783                                                         io->io1.address_length);
2784                                 }
2785                         }
2786                         else {
2787                                 spic_dev.cur_ioport = io;
2788                                 break;
2789                         }
2790                 }
2791         }
2792         if (!spic_dev.cur_ioport) {
2793                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2794                 result = -ENODEV;
2795                 goto err_remove_compat;
2796         }
2797
2798         /* request IRQ */
2799         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2800                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2801                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
2802                         dprintk("IRQ: %d - triggering: %d - "
2803                                         "polarity: %d - shr: %d\n",
2804                                         irq->irq.interrupts[0],
2805                                         irq->irq.triggering,
2806                                         irq->irq.polarity,
2807                                         irq->irq.sharable);
2808                         spic_dev.cur_irq = irq;
2809                         break;
2810                 }
2811         }
2812         if (!spic_dev.cur_irq) {
2813                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2814                 result = -ENODEV;
2815                 goto err_release_region;
2816         }
2817
2818         /* set resource status _SRS */
2819         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2820         if (result) {
2821                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2822                 goto err_free_irq;
2823         }
2824
2825         spic_dev.bluetooth_power = -1;
2826         /* create device attributes */
2827         result = sony_pf_add();
2828         if (result)
2829                 goto err_disable_device;
2830
2831         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2832         if (result)
2833                 goto err_remove_pf;
2834
2835         return 0;
2836
2837 err_remove_pf:
2838         sony_pf_remove();
2839
2840 err_disable_device:
2841         sony_pic_disable(device);
2842
2843 err_free_irq:
2844         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2845
2846 err_release_region:
2847         release_region(spic_dev.cur_ioport->io1.minimum,
2848                         spic_dev.cur_ioport->io1.address_length);
2849         if (spic_dev.cur_ioport->io2.minimum)
2850                 release_region(spic_dev.cur_ioport->io2.minimum,
2851                                 spic_dev.cur_ioport->io2.address_length);
2852
2853 err_remove_compat:
2854         sonypi_compat_exit();
2855
2856 err_remove_input:
2857         sony_laptop_remove_input();
2858
2859 err_free_resources:
2860         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2861                 list_del(&io->list);
2862                 kfree(io);
2863         }
2864         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2865                 list_del(&irq->list);
2866                 kfree(irq);
2867         }
2868         spic_dev.cur_ioport = NULL;
2869         spic_dev.cur_irq = NULL;
2870
2871         return result;
2872 }
2873
2874 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2875 {
2876         if (sony_pic_disable(device))
2877                 return -ENXIO;
2878         return 0;
2879 }
2880
2881 static int sony_pic_resume(struct acpi_device *device)
2882 {
2883         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2884         return 0;
2885 }
2886
2887 static const struct acpi_device_id sony_pic_device_ids[] = {
2888         {SONY_PIC_HID, 0},
2889         {"", 0},
2890 };
2891
2892 static struct acpi_driver sony_pic_driver = {
2893         .name = SONY_PIC_DRIVER_NAME,
2894         .class = SONY_PIC_CLASS,
2895         .ids = sony_pic_device_ids,
2896         .owner = THIS_MODULE,
2897         .ops = {
2898                 .add = sony_pic_add,
2899                 .remove = sony_pic_remove,
2900                 .suspend = sony_pic_suspend,
2901                 .resume = sony_pic_resume,
2902                 },
2903 };
2904
2905 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2906         {
2907                 .ident = "Sony Vaio",
2908                 .matches = {
2909                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2910                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2911                 },
2912         },
2913         {
2914                 .ident = "Sony Vaio",
2915                 .matches = {
2916                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2917                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2918                 },
2919         },
2920         { }
2921 };
2922
2923 static int __init sony_laptop_init(void)
2924 {
2925         int result;
2926
2927         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2928                 result = acpi_bus_register_driver(&sony_pic_driver);
2929                 if (result) {
2930                         printk(KERN_ERR DRV_PFX
2931                                         "Unable to register SPIC driver.");
2932                         goto out;
2933                 }
2934                 spic_drv_registered = 1;
2935         }
2936
2937         result = acpi_bus_register_driver(&sony_nc_driver);
2938         if (result) {
2939                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2940                 goto out_unregister_pic;
2941         }
2942
2943         return 0;
2944
2945 out_unregister_pic:
2946         if (spic_drv_registered)
2947                 acpi_bus_unregister_driver(&sony_pic_driver);
2948 out:
2949         return result;
2950 }
2951
2952 static void __exit sony_laptop_exit(void)
2953 {
2954         acpi_bus_unregister_driver(&sony_nc_driver);
2955         if (spic_drv_registered)
2956                 acpi_bus_unregister_driver(&sony_pic_driver);
2957 }
2958
2959 module_init(sony_laptop_init);
2960 module_exit(sony_laptop_exit);