Pull events into release branch
[sfrench/cifs-2.6.git] / drivers / misc / 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 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 #ifdef CONFIG_SONYPI_COMPAT
67 #include <linux/poll.h>
68 #include <linux/miscdevice.h>
69 #endif
70
71 #define DRV_PFX                 "sony-laptop: "
72 #define dprintk(msg...)         do {                    \
73         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
74 } while (0)
75
76 #define SONY_LAPTOP_DRIVER_VERSION      "0.5"
77
78 #define SONY_NC_CLASS           "sony-nc"
79 #define SONY_NC_HID             "SNY5001"
80 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
81
82 #define SONY_PIC_CLASS          "sony-pic"
83 #define SONY_PIC_HID            "SNY6001"
84 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
85
86 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
87 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
88 MODULE_LICENSE("GPL");
89 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
90
91 static int debug;
92 module_param(debug, int, 0);
93 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
94                  "the development of this driver");
95
96 static int no_spic;             /* = 0 */
97 module_param(no_spic, int, 0444);
98 MODULE_PARM_DESC(no_spic,
99                  "set this if you don't want to enable the SPIC device");
100
101 static int compat;              /* = 0 */
102 module_param(compat, int, 0444);
103 MODULE_PARM_DESC(compat,
104                  "set this if you want to enable backward compatibility mode");
105
106 static unsigned long mask = 0xffffffff;
107 module_param(mask, ulong, 0644);
108 MODULE_PARM_DESC(mask,
109                  "set this to the mask of event you want to enable (see doc)");
110
111 static int camera;              /* = 0 */
112 module_param(camera, int, 0444);
113 MODULE_PARM_DESC(camera,
114                  "set this to 1 to enable Motion Eye camera controls "
115                  "(only use it if you have a C1VE or C1VN model)");
116
117 #ifdef CONFIG_SONYPI_COMPAT
118 static int minor = -1;
119 module_param(minor, int, 0);
120 MODULE_PARM_DESC(minor,
121                  "minor number of the misc device for the SPIC compatibility code, "
122                  "default is -1 (automatic)");
123 #endif
124
125 /*********** Input Devices ***********/
126
127 #define SONY_LAPTOP_BUF_SIZE    128
128 struct sony_laptop_input_s {
129         atomic_t                users;
130         struct input_dev        *jog_dev;
131         struct input_dev        *key_dev;
132         struct kfifo            *fifo;
133         spinlock_t              fifo_lock;
134         struct workqueue_struct *wq;
135 };
136 static struct sony_laptop_input_s sony_laptop_input = {
137         .users = ATOMIC_INIT(0),
138 };
139
140 struct sony_laptop_keypress {
141         struct input_dev *dev;
142         int key;
143 };
144
145 /* Correspondance table between sonypi events
146  * and input layer indexes in the keymap
147  */
148 static int sony_laptop_input_index[] = {
149         -1,     /* no event */
150         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN */
151         -1,     /* SONYPI_EVENT_JOGDIAL_UP */
152         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
153         -1,     /* SONYPI_EVENT_JOGDIAL_UP_PRESSED */
154         -1,     /* SONYPI_EVENT_JOGDIAL_PRESSED */
155         -1,     /* SONYPI_EVENT_JOGDIAL_RELEASED */
156          0,     /* SONYPI_EVENT_CAPTURE_PRESSED */
157          1,     /* SONYPI_EVENT_CAPTURE_RELEASED */
158          2,     /* SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
159          3,     /* SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
160          4,     /* SONYPI_EVENT_FNKEY_ESC */
161          5,     /* SONYPI_EVENT_FNKEY_F1 */
162          6,     /* SONYPI_EVENT_FNKEY_F2 */
163          7,     /* SONYPI_EVENT_FNKEY_F3 */
164          8,     /* SONYPI_EVENT_FNKEY_F4 */
165          9,     /* SONYPI_EVENT_FNKEY_F5 */
166         10,     /* SONYPI_EVENT_FNKEY_F6 */
167         11,     /* SONYPI_EVENT_FNKEY_F7 */
168         12,     /* SONYPI_EVENT_FNKEY_F8 */
169         13,     /* SONYPI_EVENT_FNKEY_F9 */
170         14,     /* SONYPI_EVENT_FNKEY_F10 */
171         15,     /* SONYPI_EVENT_FNKEY_F11 */
172         16,     /* SONYPI_EVENT_FNKEY_F12 */
173         17,     /* SONYPI_EVENT_FNKEY_1 */
174         18,     /* SONYPI_EVENT_FNKEY_2 */
175         19,     /* SONYPI_EVENT_FNKEY_D */
176         20,     /* SONYPI_EVENT_FNKEY_E */
177         21,     /* SONYPI_EVENT_FNKEY_F */
178         22,     /* SONYPI_EVENT_FNKEY_S */
179         23,     /* SONYPI_EVENT_FNKEY_B */
180         24,     /* SONYPI_EVENT_BLUETOOTH_PRESSED */
181         25,     /* SONYPI_EVENT_PKEY_P1 */
182         26,     /* SONYPI_EVENT_PKEY_P2 */
183         27,     /* SONYPI_EVENT_PKEY_P3 */
184         28,     /* SONYPI_EVENT_BACK_PRESSED */
185         -1,     /* SONYPI_EVENT_LID_CLOSED */
186         -1,     /* SONYPI_EVENT_LID_OPENED */
187         29,     /* SONYPI_EVENT_BLUETOOTH_ON */
188         30,     /* SONYPI_EVENT_BLUETOOTH_OFF */
189         31,     /* SONYPI_EVENT_HELP_PRESSED */
190         32,     /* SONYPI_EVENT_FNKEY_ONLY */
191         33,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN */
192         34,     /* SONYPI_EVENT_JOGDIAL_FAST_UP */
193         35,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
194         36,     /* SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
195         37,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
196         38,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP */
197         39,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
198         40,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
199         41,     /* SONYPI_EVENT_ZOOM_PRESSED */
200         42,     /* SONYPI_EVENT_THUMBPHRASE_PRESSED */
201         43,     /* SONYPI_EVENT_MEYE_FACE */
202         44,     /* SONYPI_EVENT_MEYE_OPPOSITE */
203         45,     /* SONYPI_EVENT_MEMORYSTICK_INSERT */
204         46,     /* SONYPI_EVENT_MEMORYSTICK_EJECT */
205         -1,     /* SONYPI_EVENT_ANYBUTTON_RELEASED */
206         -1,     /* SONYPI_EVENT_BATTERY_INSERT */
207         -1,     /* SONYPI_EVENT_BATTERY_REMOVE */
208         -1,     /* SONYPI_EVENT_FNKEY_RELEASED */
209         47,     /* SONYPI_EVENT_WIRELESS_ON */
210         48,     /* SONYPI_EVENT_WIRELESS_OFF */
211 };
212
213 static int sony_laptop_input_keycode_map[] = {
214         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
215         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
216         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
217         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
218         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
219         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
220         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
221         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
222         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
223         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
224         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
225         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
226         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
227         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
228         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
229         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
230         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
231         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
232         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
233         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
234         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
235         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
236         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
237         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
238         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
239         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
240         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
241         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
242         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
243         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
244         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
245         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
246         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
247         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
248         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
249         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
250         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
251         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
252         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
253         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
254         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
255         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
256         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
257         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
258         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
259         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
260         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
261         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
262         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
263 };
264
265 /* release buttons after a short delay if pressed */
266 static void do_sony_laptop_release_key(struct work_struct *work)
267 {
268         struct sony_laptop_keypress kp;
269
270         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
271                          sizeof(kp)) == sizeof(kp)) {
272                 msleep(10);
273                 input_report_key(kp.dev, kp.key, 0);
274                 input_sync(kp.dev);
275         }
276 }
277 static DECLARE_WORK(sony_laptop_release_key_work,
278                 do_sony_laptop_release_key);
279
280 /* forward event to the input subsytem */
281 static void sony_laptop_report_input_event(u8 event)
282 {
283         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
284         struct input_dev *key_dev = sony_laptop_input.key_dev;
285         struct sony_laptop_keypress kp = { NULL };
286
287         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
288                 /* Nothing, not all VAIOs generate this event */
289                 return;
290         }
291
292         /* report events */
293         switch (event) {
294         /* jog_dev events */
295         case SONYPI_EVENT_JOGDIAL_UP:
296         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
297                 input_report_rel(jog_dev, REL_WHEEL, 1);
298                 input_sync(jog_dev);
299                 return;
300
301         case SONYPI_EVENT_JOGDIAL_DOWN:
302         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
303                 input_report_rel(jog_dev, REL_WHEEL, -1);
304                 input_sync(jog_dev);
305                 return;
306
307         /* key_dev events */
308         case SONYPI_EVENT_JOGDIAL_PRESSED:
309                 kp.key = BTN_MIDDLE;
310                 kp.dev = jog_dev;
311                 break;
312
313         default:
314                 if (event > ARRAY_SIZE (sony_laptop_input_keycode_map)) {
315                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
316                         break;
317                 }
318                 if (sony_laptop_input_index[event] != -1) {
319                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
320                         if (kp.key != KEY_UNKNOWN)
321                                 kp.dev = key_dev;
322                 }
323                 break;
324         }
325
326         if (kp.dev) {
327                 input_report_key(kp.dev, kp.key, 1);
328                 /* we emit the scancode so we can always remap the key */
329                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
330                 input_sync(kp.dev);
331                 kfifo_put(sony_laptop_input.fifo,
332                           (unsigned char *)&kp, sizeof(kp));
333
334                 if (!work_pending(&sony_laptop_release_key_work))
335                         queue_work(sony_laptop_input.wq,
336                                         &sony_laptop_release_key_work);
337         } else
338                 dprintk("unknown input event %.2x\n", event);
339 }
340
341 static int sony_laptop_setup_input(void)
342 {
343         struct input_dev *jog_dev;
344         struct input_dev *key_dev;
345         int i;
346         int error;
347
348         /* don't run again if already initialized */
349         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
350                 return 0;
351
352         /* kfifo */
353         spin_lock_init(&sony_laptop_input.fifo_lock);
354         sony_laptop_input.fifo =
355                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
356                             &sony_laptop_input.fifo_lock);
357         if (IS_ERR(sony_laptop_input.fifo)) {
358                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
359                 error = PTR_ERR(sony_laptop_input.fifo);
360                 goto err_dec_users;
361         }
362
363         /* init workqueue */
364         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
365         if (!sony_laptop_input.wq) {
366                 printk(KERN_ERR DRV_PFX
367                                 "Unabe to create workqueue.\n");
368                 error = -ENXIO;
369                 goto err_free_kfifo;
370         }
371
372         /* input keys */
373         key_dev = input_allocate_device();
374         if (!key_dev) {
375                 error = -ENOMEM;
376                 goto err_destroy_wq;
377         }
378
379         key_dev->name = "Sony Vaio Keys";
380         key_dev->id.bustype = BUS_ISA;
381         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
382
383         /* Initialize the Input Drivers: special keys */
384         set_bit(EV_KEY, key_dev->evbit);
385         set_bit(EV_MSC, key_dev->evbit);
386         set_bit(MSC_SCAN, key_dev->mscbit);
387         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
388         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
389         key_dev->keycode = &sony_laptop_input_keycode_map;
390         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
391                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
392                         set_bit(sony_laptop_input_keycode_map[i],
393                                 key_dev->keybit);
394                 }
395         }
396
397         error = input_register_device(key_dev);
398         if (error)
399                 goto err_free_keydev;
400
401         sony_laptop_input.key_dev = key_dev;
402
403         /* jogdial */
404         jog_dev = input_allocate_device();
405         if (!jog_dev) {
406                 error = -ENOMEM;
407                 goto err_unregister_keydev;
408         }
409
410         jog_dev->name = "Sony Vaio Jogdial";
411         jog_dev->id.bustype = BUS_ISA;
412         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
413
414         jog_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
415         jog_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
416         jog_dev->relbit[0] = BIT(REL_WHEEL);
417
418         error = input_register_device(jog_dev);
419         if (error)
420                 goto err_free_jogdev;
421
422         sony_laptop_input.jog_dev = jog_dev;
423
424         return 0;
425
426 err_free_jogdev:
427         input_free_device(jog_dev);
428
429 err_unregister_keydev:
430         input_unregister_device(key_dev);
431         /* to avoid kref underflow below at input_free_device */
432         key_dev = NULL;
433
434 err_free_keydev:
435         input_free_device(key_dev);
436
437 err_destroy_wq:
438         destroy_workqueue(sony_laptop_input.wq);
439
440 err_free_kfifo:
441         kfifo_free(sony_laptop_input.fifo);
442
443 err_dec_users:
444         atomic_dec(&sony_laptop_input.users);
445         return error;
446 }
447
448 static void sony_laptop_remove_input(void)
449 {
450         /* cleanup only after the last user has gone */
451         if (!atomic_dec_and_test(&sony_laptop_input.users))
452                 return;
453
454         /* flush workqueue first */
455         flush_workqueue(sony_laptop_input.wq);
456
457         /* destroy input devs */
458         input_unregister_device(sony_laptop_input.key_dev);
459         sony_laptop_input.key_dev = NULL;
460
461         if (sony_laptop_input.jog_dev) {
462                 input_unregister_device(sony_laptop_input.jog_dev);
463                 sony_laptop_input.jog_dev = NULL;
464         }
465
466         destroy_workqueue(sony_laptop_input.wq);
467         kfifo_free(sony_laptop_input.fifo);
468 }
469
470 /*********** Platform Device ***********/
471
472 static atomic_t sony_pf_users = ATOMIC_INIT(0);
473 static struct platform_driver sony_pf_driver = {
474         .driver = {
475                    .name = "sony-laptop",
476                    .owner = THIS_MODULE,
477                    }
478 };
479 static struct platform_device *sony_pf_device;
480
481 static int sony_pf_add(void)
482 {
483         int ret = 0;
484
485         /* don't run again if already initialized */
486         if (atomic_add_return(1, &sony_pf_users) > 1)
487                 return 0;
488
489         ret = platform_driver_register(&sony_pf_driver);
490         if (ret)
491                 goto out;
492
493         sony_pf_device = platform_device_alloc("sony-laptop", -1);
494         if (!sony_pf_device) {
495                 ret = -ENOMEM;
496                 goto out_platform_registered;
497         }
498
499         ret = platform_device_add(sony_pf_device);
500         if (ret)
501                 goto out_platform_alloced;
502
503         return 0;
504
505       out_platform_alloced:
506         platform_device_put(sony_pf_device);
507         sony_pf_device = NULL;
508       out_platform_registered:
509         platform_driver_unregister(&sony_pf_driver);
510       out:
511         atomic_dec(&sony_pf_users);
512         return ret;
513 }
514
515 static void sony_pf_remove(void)
516 {
517         /* deregister only after the last user has gone */
518         if (!atomic_dec_and_test(&sony_pf_users))
519                 return;
520
521         platform_device_del(sony_pf_device);
522         platform_device_put(sony_pf_device);
523         platform_driver_unregister(&sony_pf_driver);
524 }
525
526 /*********** SNC (SNY5001) Device ***********/
527
528 /* the device uses 1-based values, while the backlight subsystem uses
529    0-based values */
530 #define SONY_MAX_BRIGHTNESS     8
531
532 #define SNC_VALIDATE_IN         0
533 #define SNC_VALIDATE_OUT        1
534
535 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
536                               char *);
537 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
538                                const char *, size_t);
539 static int boolean_validate(const int, const int);
540 static int brightness_default_validate(const int, const int);
541
542 struct sony_nc_value {
543         char *name;             /* name of the entry */
544         char **acpiget;         /* names of the ACPI get function */
545         char **acpiset;         /* names of the ACPI set function */
546         int (*validate)(const int, const int);  /* input/output validation */
547         int value;              /* current setting */
548         int valid;              /* Has ever been set */
549         int debug;              /* active only in debug mode ? */
550         struct device_attribute devattr;        /* sysfs atribute */
551 };
552
553 #define SNC_HANDLE_NAMES(_name, _values...) \
554         static char *snc_##_name[] = { _values, NULL }
555
556 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
557         { \
558                 .name           = __stringify(_name), \
559                 .acpiget        = _getters, \
560                 .acpiset        = _setters, \
561                 .validate       = _validate, \
562                 .debug          = _debug, \
563                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
564         }
565
566 #define SNC_HANDLE_NULL { .name = NULL }
567
568 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
569
570 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
571 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
572
573 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
574 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
575
576 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
577 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
578
579 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
580 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
581
582 SNC_HANDLE_NAMES(lidstate_get, "GLID");
583
584 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
585 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
586
587 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
588 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
589
590 SNC_HANDLE_NAMES(PID_get, "GPID");
591
592 SNC_HANDLE_NAMES(CTR_get, "GCTR");
593 SNC_HANDLE_NAMES(CTR_set, "SCTR");
594
595 SNC_HANDLE_NAMES(PCR_get, "GPCR");
596 SNC_HANDLE_NAMES(PCR_set, "SPCR");
597
598 SNC_HANDLE_NAMES(CMI_get, "GCMI");
599 SNC_HANDLE_NAMES(CMI_set, "SCMI");
600
601 static struct sony_nc_value sony_nc_values[] = {
602         SNC_HANDLE(brightness_default, snc_brightness_def_get,
603                         snc_brightness_def_set, brightness_default_validate, 0),
604         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
605         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
606         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
607                         boolean_validate, 0),
608         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
609                         boolean_validate, 1),
610         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
611                         boolean_validate, 0),
612         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
613                         boolean_validate, 0),
614         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
615                         boolean_validate, 0),
616         /* unknown methods */
617         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
618         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
619         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
620         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
621         SNC_HANDLE_NULL
622 };
623
624 static acpi_handle sony_nc_acpi_handle;
625 static struct acpi_device *sony_nc_acpi_device = NULL;
626
627 /*
628  * acpi_evaluate_object wrappers
629  */
630 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
631 {
632         struct acpi_buffer output;
633         union acpi_object out_obj;
634         acpi_status status;
635
636         output.length = sizeof(out_obj);
637         output.pointer = &out_obj;
638
639         status = acpi_evaluate_object(handle, name, NULL, &output);
640         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
641                 *result = out_obj.integer.value;
642                 return 0;
643         }
644
645         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
646
647         return -1;
648 }
649
650 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
651                             int *result)
652 {
653         struct acpi_object_list params;
654         union acpi_object in_obj;
655         struct acpi_buffer output;
656         union acpi_object out_obj;
657         acpi_status status;
658
659         params.count = 1;
660         params.pointer = &in_obj;
661         in_obj.type = ACPI_TYPE_INTEGER;
662         in_obj.integer.value = value;
663
664         output.length = sizeof(out_obj);
665         output.pointer = &out_obj;
666
667         status = acpi_evaluate_object(handle, name, &params, &output);
668         if (status == AE_OK) {
669                 if (result != NULL) {
670                         if (out_obj.type != ACPI_TYPE_INTEGER) {
671                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
672                                        "return type\n");
673                                 return -1;
674                         }
675                         *result = out_obj.integer.value;
676                 }
677                 return 0;
678         }
679
680         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
681
682         return -1;
683 }
684
685 /*
686  * sony_nc_values input/output validate functions
687  */
688
689 /* brightness_default_validate:
690  *
691  * manipulate input output values to keep consistency with the
692  * backlight framework for which brightness values are 0-based.
693  */
694 static int brightness_default_validate(const int direction, const int value)
695 {
696         switch (direction) {
697                 case SNC_VALIDATE_OUT:
698                         return value - 1;
699                 case SNC_VALIDATE_IN:
700                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
701                                 return value + 1;
702         }
703         return -EINVAL;
704 }
705
706 /* boolean_validate:
707  *
708  * on input validate boolean values 0/1, on output just pass the
709  * received value.
710  */
711 static int boolean_validate(const int direction, const int value)
712 {
713         if (direction == SNC_VALIDATE_IN) {
714                 if (value != 0 && value != 1)
715                         return -EINVAL;
716         }
717         return value;
718 }
719
720 /*
721  * Sysfs show/store common to all sony_nc_values
722  */
723 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
724                               char *buffer)
725 {
726         int value;
727         struct sony_nc_value *item =
728             container_of(attr, struct sony_nc_value, devattr);
729
730         if (!*item->acpiget)
731                 return -EIO;
732
733         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
734                 return -EIO;
735
736         if (item->validate)
737                 value = item->validate(SNC_VALIDATE_OUT, value);
738
739         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
740 }
741
742 static ssize_t sony_nc_sysfs_store(struct device *dev,
743                                struct device_attribute *attr,
744                                const char *buffer, size_t count)
745 {
746         int value;
747         struct sony_nc_value *item =
748             container_of(attr, struct sony_nc_value, devattr);
749
750         if (!item->acpiset)
751                 return -EIO;
752
753         if (count > 31)
754                 return -EINVAL;
755
756         value = simple_strtoul(buffer, NULL, 10);
757
758         if (item->validate)
759                 value = item->validate(SNC_VALIDATE_IN, value);
760
761         if (value < 0)
762                 return value;
763
764         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
765                 return -EIO;
766         item->value = value;
767         item->valid = 1;
768         return count;
769 }
770
771
772 /*
773  * Backlight device
774  */
775 static int sony_backlight_update_status(struct backlight_device *bd)
776 {
777         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
778                                 bd->props.brightness + 1, NULL);
779 }
780
781 static int sony_backlight_get_brightness(struct backlight_device *bd)
782 {
783         int value;
784
785         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
786                 return 0;
787         /* brightness levels are 1-based, while backlight ones are 0-based */
788         return value - 1;
789 }
790
791 static struct backlight_device *sony_backlight_device;
792 static struct backlight_ops sony_backlight_ops = {
793         .update_status = sony_backlight_update_status,
794         .get_brightness = sony_backlight_get_brightness,
795 };
796
797 /*
798  * New SNC-only Vaios event mapping to driver known keys
799  */
800 struct sony_nc_event {
801         u8      data;
802         u8      event;
803 };
804
805 static struct sony_nc_event *sony_nc_events;
806
807 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
808  * for Fn keys
809  */
810 static int sony_nc_C_enable(struct dmi_system_id *id)
811 {
812         int result = 0;
813
814         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
815
816         sony_nc_events = id->driver_data;
817
818         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
819                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
820                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
821                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
822                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
823                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
824                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
825                                 "functionalities may be missing\n");
826                 return 1;
827         }
828         return 0;
829 }
830
831 static struct sony_nc_event sony_C_events[] = {
832         { 0x81, SONYPI_EVENT_FNKEY_F1 },
833         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
834         { 0x85, SONYPI_EVENT_FNKEY_F5 },
835         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
836         { 0x86, SONYPI_EVENT_FNKEY_F6 },
837         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
838         { 0x87, SONYPI_EVENT_FNKEY_F7 },
839         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
840         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
841         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
842         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
843         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
844         { 0, 0 },
845 };
846
847 /* SNC-only model map */
848 static struct dmi_system_id sony_nc_ids[] = {
849                 {
850                         .ident = "Sony Vaio FE Series",
851                         .callback = sony_nc_C_enable,
852                         .driver_data = sony_C_events,
853                         .matches = {
854                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
855                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
856                         },
857                 },
858                 {
859                         .ident = "Sony Vaio FZ Series",
860                         .callback = sony_nc_C_enable,
861                         .driver_data = sony_C_events,
862                         .matches = {
863                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
864                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
865                         },
866                 },
867                 {
868                         .ident = "Sony Vaio C Series",
869                         .callback = sony_nc_C_enable,
870                         .driver_data = sony_C_events,
871                         .matches = {
872                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
873                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
874                         },
875                 },
876                 { }
877 };
878
879 /*
880  * ACPI callbacks
881  */
882 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
883 {
884         struct sony_nc_event *evmap;
885         u32 ev = event;
886         int result;
887
888         if (ev == 0x92) {
889                 /* read the key pressed from EC.GECR
890                  * A call to SN07 with 0x0202 will do it as well respecting
891                  * the current protocol on different OSes
892                  *
893                  * Note: the path for GECR may be
894                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
895                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
896                  *
897                  * TODO: we may want to do the same for the older GHKE -need
898                  *       dmi list- so this snippet may become one more callback.
899                  */
900                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
901                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
902                 else
903                         ev = result & 0xFF;
904         }
905
906         if (sony_nc_events)
907                 for (evmap = sony_nc_events; evmap->event; evmap++) {
908                         if (evmap->data == ev) {
909                                 ev = evmap->event;
910                                 break;
911                         }
912                 }
913
914         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
915         sony_laptop_report_input_event(ev);
916         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
917 }
918
919 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
920                                       void *context, void **return_value)
921 {
922         struct acpi_namespace_node *node;
923         union acpi_operand_object *operand;
924
925         node = (struct acpi_namespace_node *)handle;
926         operand = (union acpi_operand_object *)node->object;
927
928         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
929                (u32) operand->method.param_count);
930
931         return AE_OK;
932 }
933
934 /*
935  * ACPI device
936  */
937 static int sony_nc_resume(struct acpi_device *device)
938 {
939         struct sony_nc_value *item;
940
941         for (item = sony_nc_values; item->name; item++) {
942                 int ret;
943
944                 if (!item->valid)
945                         continue;
946                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
947                                        item->value, NULL);
948                 if (ret < 0) {
949                         printk("%s: %d\n", __FUNCTION__, ret);
950                         break;
951                 }
952         }
953
954         /* set the last requested brightness level */
955         if (sony_backlight_device &&
956                         !sony_backlight_update_status(sony_backlight_device))
957                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
958
959         /* re-initialize models with specific requirements */
960         dmi_check_system(sony_nc_ids);
961
962         return 0;
963 }
964
965 static int sony_nc_add(struct acpi_device *device)
966 {
967         acpi_status status;
968         int result = 0;
969         acpi_handle handle;
970         struct sony_nc_value *item;
971
972         printk(KERN_INFO DRV_PFX "%s v%s.\n",
973                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
974
975         sony_nc_acpi_device = device;
976         strcpy(acpi_device_class(device), "sony/hotkey");
977
978         sony_nc_acpi_handle = device->handle;
979
980         /* read device status */
981         result = acpi_bus_get_status(device);
982         /* bail IFF the above call was successful and the device is not present */
983         if (!result && !device->status.present) {
984                 dprintk("Device not present\n");
985                 result = -ENODEV;
986                 goto outwalk;
987         }
988
989         if (debug) {
990                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
991                                              1, sony_walk_callback, NULL, NULL);
992                 if (ACPI_FAILURE(status)) {
993                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
994                         result = -ENODEV;
995                         goto outwalk;
996                 }
997         }
998
999         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1000          * should be respected as we already checked for the device presence above */
1001         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1002                 dprintk("Invoking _INI\n");
1003                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1004                                                 NULL, NULL)))
1005                         dprintk("_INI Method failed\n");
1006         }
1007
1008         /* setup input devices and helper fifo */
1009         result = sony_laptop_setup_input();
1010         if (result) {
1011                 printk(KERN_ERR DRV_PFX
1012                                 "Unabe to create input devices.\n");
1013                 goto outwalk;
1014         }
1015
1016         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1017                                              ACPI_DEVICE_NOTIFY,
1018                                              sony_acpi_notify, NULL);
1019         if (ACPI_FAILURE(status)) {
1020                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1021                 result = -ENODEV;
1022                 goto outinput;
1023         }
1024
1025         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1026                 sony_backlight_device = backlight_device_register("sony", NULL,
1027                                                                   NULL,
1028                                                                   &sony_backlight_ops);
1029
1030                 if (IS_ERR(sony_backlight_device)) {
1031                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1032                         sony_backlight_device = NULL;
1033                 } else {
1034                         sony_backlight_device->props.brightness =
1035                             sony_backlight_get_brightness
1036                             (sony_backlight_device);
1037                         sony_backlight_device->props.max_brightness = 
1038                             SONY_MAX_BRIGHTNESS - 1;
1039                 }
1040
1041         }
1042
1043         /* initialize models with specific requirements */
1044         dmi_check_system(sony_nc_ids);
1045
1046         result = sony_pf_add();
1047         if (result)
1048                 goto outbacklight;
1049
1050         /* create sony_pf sysfs attributes related to the SNC device */
1051         for (item = sony_nc_values; item->name; ++item) {
1052
1053                 if (!debug && item->debug)
1054                         continue;
1055
1056                 /* find the available acpiget as described in the DSDT */
1057                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1058                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1059                                                          *item->acpiget,
1060                                                          &handle))) {
1061                                 dprintk("Found %s getter: %s\n",
1062                                                 item->name, *item->acpiget);
1063                                 item->devattr.attr.mode |= S_IRUGO;
1064                                 break;
1065                         }
1066                 }
1067
1068                 /* find the available acpiset as described in the DSDT */
1069                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1070                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1071                                                          *item->acpiset,
1072                                                          &handle))) {
1073                                 dprintk("Found %s setter: %s\n",
1074                                                 item->name, *item->acpiset);
1075                                 item->devattr.attr.mode |= S_IWUSR;
1076                                 break;
1077                         }
1078                 }
1079
1080                 if (item->devattr.attr.mode != 0) {
1081                         result =
1082                             device_create_file(&sony_pf_device->dev,
1083                                                &item->devattr);
1084                         if (result)
1085                                 goto out_sysfs;
1086                 }
1087         }
1088
1089         return 0;
1090
1091       out_sysfs:
1092         for (item = sony_nc_values; item->name; ++item) {
1093                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1094         }
1095         sony_pf_remove();
1096
1097       outbacklight:
1098         if (sony_backlight_device)
1099                 backlight_device_unregister(sony_backlight_device);
1100
1101         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1102                                             ACPI_DEVICE_NOTIFY,
1103                                             sony_acpi_notify);
1104         if (ACPI_FAILURE(status))
1105                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1106
1107       outinput:
1108         sony_laptop_remove_input();
1109
1110       outwalk:
1111         return result;
1112 }
1113
1114 static int sony_nc_remove(struct acpi_device *device, int type)
1115 {
1116         acpi_status status;
1117         struct sony_nc_value *item;
1118
1119         if (sony_backlight_device)
1120                 backlight_device_unregister(sony_backlight_device);
1121
1122         sony_nc_acpi_device = NULL;
1123
1124         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1125                                             ACPI_DEVICE_NOTIFY,
1126                                             sony_acpi_notify);
1127         if (ACPI_FAILURE(status))
1128                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1129
1130         for (item = sony_nc_values; item->name; ++item) {
1131                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1132         }
1133
1134         sony_pf_remove();
1135         sony_laptop_remove_input();
1136         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1137
1138         return 0;
1139 }
1140
1141 static const struct acpi_device_id sony_device_ids[] = {
1142         {SONY_NC_HID, 0},
1143         {SONY_PIC_HID, 0},
1144         {"", 0},
1145 };
1146 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1147
1148 static const struct acpi_device_id sony_nc_device_ids[] = {
1149         {SONY_NC_HID, 0},
1150         {"", 0},
1151 };
1152
1153 static struct acpi_driver sony_nc_driver = {
1154         .name = SONY_NC_DRIVER_NAME,
1155         .class = SONY_NC_CLASS,
1156         .ids = sony_nc_device_ids,
1157         .owner = THIS_MODULE,
1158         .ops = {
1159                 .add = sony_nc_add,
1160                 .remove = sony_nc_remove,
1161                 .resume = sony_nc_resume,
1162                 },
1163 };
1164
1165 /*********** SPIC (SNY6001) Device ***********/
1166
1167 #define SONYPI_DEVICE_TYPE1     0x00000001
1168 #define SONYPI_DEVICE_TYPE2     0x00000002
1169 #define SONYPI_DEVICE_TYPE3     0x00000004
1170
1171 #define SONYPI_TYPE1_OFFSET     0x04
1172 #define SONYPI_TYPE2_OFFSET     0x12
1173 #define SONYPI_TYPE3_OFFSET     0x12
1174
1175 struct sony_pic_ioport {
1176         struct acpi_resource_io io;
1177         struct list_head        list;
1178 };
1179
1180 struct sony_pic_irq {
1181         struct acpi_resource_irq        irq;
1182         struct list_head                list;
1183 };
1184
1185 struct sony_pic_dev {
1186         int                     model;
1187         u16                     evport_offset;
1188         u8                      camera_power;
1189         u8                      bluetooth_power;
1190         u8                      wwan_power;
1191         struct acpi_device      *acpi_dev;
1192         struct sony_pic_irq     *cur_irq;
1193         struct sony_pic_ioport  *cur_ioport;
1194         struct list_head        interrupts;
1195         struct list_head        ioports;
1196         struct mutex            lock;
1197 };
1198
1199 static struct sony_pic_dev spic_dev = {
1200         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1201         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1202 };
1203
1204 /* Event masks */
1205 #define SONYPI_JOGGER_MASK                      0x00000001
1206 #define SONYPI_CAPTURE_MASK                     0x00000002
1207 #define SONYPI_FNKEY_MASK                       0x00000004
1208 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1209 #define SONYPI_PKEY_MASK                        0x00000010
1210 #define SONYPI_BACK_MASK                        0x00000020
1211 #define SONYPI_HELP_MASK                        0x00000040
1212 #define SONYPI_LID_MASK                         0x00000080
1213 #define SONYPI_ZOOM_MASK                        0x00000100
1214 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1215 #define SONYPI_MEYE_MASK                        0x00000400
1216 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1217 #define SONYPI_BATTERY_MASK                     0x00001000
1218 #define SONYPI_WIRELESS_MASK                    0x00002000
1219
1220 struct sonypi_event {
1221         u8      data;
1222         u8      event;
1223 };
1224
1225 /* The set of possible button release events */
1226 static struct sonypi_event sonypi_releaseev[] = {
1227         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1228         { 0, 0 }
1229 };
1230
1231 /* The set of possible jogger events  */
1232 static struct sonypi_event sonypi_joggerev[] = {
1233         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1234         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1235         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1236         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1237         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1238         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1239         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1240         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1241         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1242         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1243         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1244         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1245         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1246         { 0, 0 }
1247 };
1248
1249 /* The set of possible capture button events */
1250 static struct sonypi_event sonypi_captureev[] = {
1251         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1252         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1253         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1254         { 0, 0 }
1255 };
1256
1257 /* The set of possible fnkeys events */
1258 static struct sonypi_event sonypi_fnkeyev[] = {
1259         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1260         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1261         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1262         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1263         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1264         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1265         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1266         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1267         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1268         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1269         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1270         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1271         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1272         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1273         { 0x21, SONYPI_EVENT_FNKEY_1 },
1274         { 0x22, SONYPI_EVENT_FNKEY_2 },
1275         { 0x31, SONYPI_EVENT_FNKEY_D },
1276         { 0x32, SONYPI_EVENT_FNKEY_E },
1277         { 0x33, SONYPI_EVENT_FNKEY_F },
1278         { 0x34, SONYPI_EVENT_FNKEY_S },
1279         { 0x35, SONYPI_EVENT_FNKEY_B },
1280         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1281         { 0, 0 }
1282 };
1283
1284 /* The set of possible program key events */
1285 static struct sonypi_event sonypi_pkeyev[] = {
1286         { 0x01, SONYPI_EVENT_PKEY_P1 },
1287         { 0x02, SONYPI_EVENT_PKEY_P2 },
1288         { 0x04, SONYPI_EVENT_PKEY_P3 },
1289         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1290         { 0, 0 }
1291 };
1292
1293 /* The set of possible bluetooth events */
1294 static struct sonypi_event sonypi_blueev[] = {
1295         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1296         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1297         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1298         { 0, 0 }
1299 };
1300
1301 /* The set of possible wireless events */
1302 static struct sonypi_event sonypi_wlessev[] = {
1303         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1304         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1305         { 0, 0 }
1306 };
1307
1308 /* The set of possible back button events */
1309 static struct sonypi_event sonypi_backev[] = {
1310         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1311         { 0, 0 }
1312 };
1313
1314 /* The set of possible help button events */
1315 static struct sonypi_event sonypi_helpev[] = {
1316         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1317         { 0, 0 }
1318 };
1319
1320
1321 /* The set of possible lid events */
1322 static struct sonypi_event sonypi_lidev[] = {
1323         { 0x51, SONYPI_EVENT_LID_CLOSED },
1324         { 0x50, SONYPI_EVENT_LID_OPENED },
1325         { 0, 0 }
1326 };
1327
1328 /* The set of possible zoom events */
1329 static struct sonypi_event sonypi_zoomev[] = {
1330         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1331         { 0, 0 }
1332 };
1333
1334 /* The set of possible thumbphrase events */
1335 static struct sonypi_event sonypi_thumbphraseev[] = {
1336         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1337         { 0, 0 }
1338 };
1339
1340 /* The set of possible motioneye camera events */
1341 static struct sonypi_event sonypi_meyeev[] = {
1342         { 0x00, SONYPI_EVENT_MEYE_FACE },
1343         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1344         { 0, 0 }
1345 };
1346
1347 /* The set of possible memorystick events */
1348 static struct sonypi_event sonypi_memorystickev[] = {
1349         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1350         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1351         { 0, 0 }
1352 };
1353
1354 /* The set of possible battery events */
1355 static struct sonypi_event sonypi_batteryev[] = {
1356         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1357         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1358         { 0, 0 }
1359 };
1360
1361 static struct sonypi_eventtypes {
1362         int                     model;
1363         u8                      data;
1364         unsigned long           mask;
1365         struct sonypi_event *   events;
1366 } sony_pic_eventtypes[] = {
1367         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1368         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1369         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1370         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1371         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1372         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1373         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1374         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1375         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1376         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1377
1378         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1379         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1380         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1381         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1382         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1383         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1384         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1385         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1386         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1387         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1388         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1389         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1390         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1391         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1392
1393         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1394         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1395         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1396         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1397         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1398         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1399         { 0 }
1400 };
1401
1402 static int sony_pic_detect_device_type(void)
1403 {
1404         struct pci_dev *pcidev;
1405         int model = 0;
1406
1407         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1408                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1409                 model = SONYPI_DEVICE_TYPE1;
1410
1411         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1412                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1413                 model = SONYPI_DEVICE_TYPE3;
1414
1415         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1416                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1417                 model = SONYPI_DEVICE_TYPE3;
1418
1419         else
1420                 model = SONYPI_DEVICE_TYPE2;
1421
1422         if (pcidev)
1423                 pci_dev_put(pcidev);
1424
1425         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1426                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1427                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1428         return model;
1429 }
1430
1431 #define ITERATIONS_LONG         10000
1432 #define ITERATIONS_SHORT        10
1433 #define wait_on_command(command, iterations) {                          \
1434         unsigned int n = iterations;                                    \
1435         while (--n && (command))                                        \
1436                 udelay(1);                                              \
1437         if (!n)                                                         \
1438                 dprintk("command failed at %s : %s (line %d)\n",        \
1439                                 __FILE__, __FUNCTION__, __LINE__);      \
1440 }
1441
1442 static u8 sony_pic_call1(u8 dev)
1443 {
1444         u8 v1, v2;
1445
1446         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1447                         ITERATIONS_LONG);
1448         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1449         v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
1450         v2 = inb_p(spic_dev.cur_ioport->io.minimum);
1451         dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1452         return v2;
1453 }
1454
1455 static u8 sony_pic_call2(u8 dev, u8 fn)
1456 {
1457         u8 v1;
1458
1459         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1460                         ITERATIONS_LONG);
1461         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1462         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1463                         ITERATIONS_LONG);
1464         outb(fn, spic_dev.cur_ioport->io.minimum);
1465         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1466         dprintk("sony_pic_call2: 0x%.4x\n", v1);
1467         return v1;
1468 }
1469
1470 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1471 {
1472         u8 v1;
1473
1474         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1475         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1476         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1477         outb(fn, spic_dev.cur_ioport->io.minimum);
1478         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1479         outb(v, spic_dev.cur_ioport->io.minimum);
1480         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1481         dprintk("sony_pic_call3: 0x%.4x\n", v1);
1482         return v1;
1483 }
1484
1485 /* camera tests and poweron/poweroff */
1486 #define SONYPI_CAMERA_PICTURE           5
1487 #define SONYPI_CAMERA_CONTROL           0x10
1488
1489 #define SONYPI_CAMERA_BRIGHTNESS                0
1490 #define SONYPI_CAMERA_CONTRAST                  1
1491 #define SONYPI_CAMERA_HUE                       2
1492 #define SONYPI_CAMERA_COLOR                     3
1493 #define SONYPI_CAMERA_SHARPNESS                 4
1494
1495 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1496 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1497 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1498 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1499
1500 /* the rest don't need a loop until not 0xff */
1501 #define SONYPI_CAMERA_AGC                       6
1502 #define SONYPI_CAMERA_AGC_MASK                  0x30
1503 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1504
1505 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1506 #define SONYPI_CAMERA_CONTROL                   0x10
1507
1508 #define SONYPI_CAMERA_STATUS                    7
1509 #define SONYPI_CAMERA_STATUS_READY              0x2
1510 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1511
1512 #define SONYPI_DIRECTION_BACKWARDS              0x4
1513
1514 #define SONYPI_CAMERA_REVISION                  8
1515 #define SONYPI_CAMERA_ROMVERSION                9
1516
1517 static int __sony_pic_camera_ready(void)
1518 {
1519         u8 v;
1520
1521         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1522         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1523 }
1524
1525 static int __sony_pic_camera_off(void)
1526 {
1527         if (!camera) {
1528                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1529                 return -ENODEV;
1530         }
1531
1532         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1533                                 SONYPI_CAMERA_MUTE_MASK),
1534                         ITERATIONS_SHORT);
1535
1536         if (spic_dev.camera_power) {
1537                 sony_pic_call2(0x91, 0);
1538                 spic_dev.camera_power = 0;
1539         }
1540         return 0;
1541 }
1542
1543 static int __sony_pic_camera_on(void)
1544 {
1545         int i, j, x;
1546
1547         if (!camera) {
1548                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1549                 return -ENODEV;
1550         }
1551
1552         if (spic_dev.camera_power)
1553                 return 0;
1554
1555         for (j = 5; j > 0; j--) {
1556
1557                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1558                         msleep(10);
1559                 sony_pic_call1(0x93);
1560
1561                 for (i = 400; i > 0; i--) {
1562                         if (__sony_pic_camera_ready())
1563                                 break;
1564                         msleep(10);
1565                 }
1566                 if (i)
1567                         break;
1568         }
1569
1570         if (j == 0) {
1571                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1572                 return -ENODEV;
1573         }
1574
1575         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1576                                 0x5a),
1577                         ITERATIONS_SHORT);
1578
1579         spic_dev.camera_power = 1;
1580         return 0;
1581 }
1582
1583 /* External camera command (exported to the motion eye v4l driver) */
1584 int sony_pic_camera_command(int command, u8 value)
1585 {
1586         if (!camera)
1587                 return -EIO;
1588
1589         mutex_lock(&spic_dev.lock);
1590
1591         switch (command) {
1592         case SONY_PIC_COMMAND_SETCAMERA:
1593                 if (value)
1594                         __sony_pic_camera_on();
1595                 else
1596                         __sony_pic_camera_off();
1597                 break;
1598         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1599                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1600                                 ITERATIONS_SHORT);
1601                 break;
1602         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1603                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1604                                 ITERATIONS_SHORT);
1605                 break;
1606         case SONY_PIC_COMMAND_SETCAMERAHUE:
1607                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1608                                 ITERATIONS_SHORT);
1609                 break;
1610         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1611                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1612                                 ITERATIONS_SHORT);
1613                 break;
1614         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1615                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1616                                 ITERATIONS_SHORT);
1617                 break;
1618         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1619                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1620                                 ITERATIONS_SHORT);
1621                 break;
1622         case SONY_PIC_COMMAND_SETCAMERAAGC:
1623                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1624                                 ITERATIONS_SHORT);
1625                 break;
1626         default:
1627                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1628                        command);
1629                 break;
1630         }
1631         mutex_unlock(&spic_dev.lock);
1632         return 0;
1633 }
1634 EXPORT_SYMBOL(sony_pic_camera_command);
1635
1636 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1637 static void sony_pic_set_wwanpower(u8 state)
1638 {
1639         state = !!state;
1640         mutex_lock(&spic_dev.lock);
1641         if (spic_dev.wwan_power == state) {
1642                 mutex_unlock(&spic_dev.lock);
1643                 return;
1644         }
1645         sony_pic_call2(0xB0, state);
1646         spic_dev.wwan_power = state;
1647         mutex_unlock(&spic_dev.lock);
1648 }
1649
1650 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1651                 struct device_attribute *attr,
1652                 const char *buffer, size_t count)
1653 {
1654         unsigned long value;
1655         if (count > 31)
1656                 return -EINVAL;
1657
1658         value = simple_strtoul(buffer, NULL, 10);
1659         sony_pic_set_wwanpower(value);
1660
1661         return count;
1662 }
1663
1664 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1665                 struct device_attribute *attr, char *buffer)
1666 {
1667         ssize_t count;
1668         mutex_lock(&spic_dev.lock);
1669         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1670         mutex_unlock(&spic_dev.lock);
1671         return count;
1672 }
1673
1674 /* bluetooth subsystem power state */
1675 static void __sony_pic_set_bluetoothpower(u8 state)
1676 {
1677         state = !!state;
1678         if (spic_dev.bluetooth_power == state)
1679                 return;
1680         sony_pic_call2(0x96, state);
1681         sony_pic_call1(0x82);
1682         spic_dev.bluetooth_power = state;
1683 }
1684
1685 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1686                 struct device_attribute *attr,
1687                 const char *buffer, size_t count)
1688 {
1689         unsigned long value;
1690         if (count > 31)
1691                 return -EINVAL;
1692
1693         value = simple_strtoul(buffer, NULL, 10);
1694         mutex_lock(&spic_dev.lock);
1695         __sony_pic_set_bluetoothpower(value);
1696         mutex_unlock(&spic_dev.lock);
1697
1698         return count;
1699 }
1700
1701 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1702                 struct device_attribute *attr, char *buffer)
1703 {
1704         ssize_t count = 0;
1705         mutex_lock(&spic_dev.lock);
1706         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1707         mutex_unlock(&spic_dev.lock);
1708         return count;
1709 }
1710
1711 /* fan speed */
1712 /* FAN0 information (reverse engineered from ACPI tables) */
1713 #define SONY_PIC_FAN0_STATUS    0x93
1714 static int sony_pic_set_fanspeed(unsigned long value)
1715 {
1716         return ec_write(SONY_PIC_FAN0_STATUS, value);
1717 }
1718
1719 static int sony_pic_get_fanspeed(u8 *value)
1720 {
1721         return ec_read(SONY_PIC_FAN0_STATUS, value);
1722 }
1723
1724 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1725                 struct device_attribute *attr,
1726                 const char *buffer, size_t count)
1727 {
1728         unsigned long value;
1729         if (count > 31)
1730                 return -EINVAL;
1731
1732         value = simple_strtoul(buffer, NULL, 10);
1733         if (sony_pic_set_fanspeed(value))
1734                 return -EIO;
1735
1736         return count;
1737 }
1738
1739 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1740                 struct device_attribute *attr, char *buffer)
1741 {
1742         u8 value = 0;
1743         if (sony_pic_get_fanspeed(&value))
1744                 return -EIO;
1745
1746         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1747 }
1748
1749 #define SPIC_ATTR(_name, _mode)                                 \
1750 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1751                 _mode, sony_pic_## _name ##_show,               \
1752                 sony_pic_## _name ##_store)
1753
1754 static SPIC_ATTR(bluetoothpower, 0644);
1755 static SPIC_ATTR(wwanpower, 0644);
1756 static SPIC_ATTR(fanspeed, 0644);
1757
1758 static struct attribute *spic_attributes[] = {
1759         &spic_attr_bluetoothpower.attr,
1760         &spic_attr_wwanpower.attr,
1761         &spic_attr_fanspeed.attr,
1762         NULL
1763 };
1764
1765 static struct attribute_group spic_attribute_group = {
1766         .attrs = spic_attributes
1767 };
1768
1769 /******** SONYPI compatibility **********/
1770 #ifdef CONFIG_SONYPI_COMPAT
1771
1772 /* battery / brightness / temperature  addresses */
1773 #define SONYPI_BAT_FLAGS        0x81
1774 #define SONYPI_LCD_LIGHT        0x96
1775 #define SONYPI_BAT1_PCTRM       0xa0
1776 #define SONYPI_BAT1_LEFT        0xa2
1777 #define SONYPI_BAT1_MAXRT       0xa4
1778 #define SONYPI_BAT2_PCTRM       0xa8
1779 #define SONYPI_BAT2_LEFT        0xaa
1780 #define SONYPI_BAT2_MAXRT       0xac
1781 #define SONYPI_BAT1_MAXTK       0xb0
1782 #define SONYPI_BAT1_FULL        0xb2
1783 #define SONYPI_BAT2_MAXTK       0xb8
1784 #define SONYPI_BAT2_FULL        0xba
1785 #define SONYPI_TEMP_STATUS      0xC1
1786
1787 struct sonypi_compat_s {
1788         struct fasync_struct    *fifo_async;
1789         struct kfifo            *fifo;
1790         spinlock_t              fifo_lock;
1791         wait_queue_head_t       fifo_proc_list;
1792         atomic_t                open_count;
1793 };
1794 static struct sonypi_compat_s sonypi_compat = {
1795         .open_count = ATOMIC_INIT(0),
1796 };
1797
1798 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1799 {
1800         int retval;
1801
1802         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1803         if (retval < 0)
1804                 return retval;
1805         return 0;
1806 }
1807
1808 static int sonypi_misc_release(struct inode *inode, struct file *file)
1809 {
1810         sonypi_misc_fasync(-1, file, 0);
1811         atomic_dec(&sonypi_compat.open_count);
1812         return 0;
1813 }
1814
1815 static int sonypi_misc_open(struct inode *inode, struct file *file)
1816 {
1817         /* Flush input queue on first open */
1818         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1819                 kfifo_reset(sonypi_compat.fifo);
1820         return 0;
1821 }
1822
1823 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1824                                 size_t count, loff_t *pos)
1825 {
1826         ssize_t ret;
1827         unsigned char c;
1828
1829         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1830             (file->f_flags & O_NONBLOCK))
1831                 return -EAGAIN;
1832
1833         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1834                                        kfifo_len(sonypi_compat.fifo) != 0);
1835         if (ret)
1836                 return ret;
1837
1838         while (ret < count &&
1839                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1840                 if (put_user(c, buf++))
1841                         return -EFAULT;
1842                 ret++;
1843         }
1844
1845         if (ret > 0) {
1846                 struct inode *inode = file->f_path.dentry->d_inode;
1847                 inode->i_atime = current_fs_time(inode->i_sb);
1848         }
1849
1850         return ret;
1851 }
1852
1853 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1854 {
1855         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1856         if (kfifo_len(sonypi_compat.fifo))
1857                 return POLLIN | POLLRDNORM;
1858         return 0;
1859 }
1860
1861 static int ec_read16(u8 addr, u16 *value)
1862 {
1863         u8 val_lb, val_hb;
1864         if (ec_read(addr, &val_lb))
1865                 return -1;
1866         if (ec_read(addr + 1, &val_hb))
1867                 return -1;
1868         *value = val_lb | (val_hb << 8);
1869         return 0;
1870 }
1871
1872 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1873                              unsigned int cmd, unsigned long arg)
1874 {
1875         int ret = 0;
1876         void __user *argp = (void __user *)arg;
1877         u8 val8;
1878         u16 val16;
1879         int value;
1880
1881         mutex_lock(&spic_dev.lock);
1882         switch (cmd) {
1883         case SONYPI_IOCGBRT:
1884                 if (sony_backlight_device == NULL) {
1885                         ret = -EIO;
1886                         break;
1887                 }
1888                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1889                         ret = -EIO;
1890                         break;
1891                 }
1892                 val8 = ((value & 0xff) - 1) << 5;
1893                 if (copy_to_user(argp, &val8, sizeof(val8)))
1894                                 ret = -EFAULT;
1895                 break;
1896         case SONYPI_IOCSBRT:
1897                 if (sony_backlight_device == NULL) {
1898                         ret = -EIO;
1899                         break;
1900                 }
1901                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1902                         ret = -EFAULT;
1903                         break;
1904                 }
1905                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1906                                 (val8 >> 5) + 1, NULL)) {
1907                         ret = -EIO;
1908                         break;
1909                 }
1910                 /* sync the backlight device status */
1911                 sony_backlight_device->props.brightness =
1912                     sony_backlight_get_brightness(sony_backlight_device);
1913                 break;
1914         case SONYPI_IOCGBAT1CAP:
1915                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1916                         ret = -EIO;
1917                         break;
1918                 }
1919                 if (copy_to_user(argp, &val16, sizeof(val16)))
1920                         ret = -EFAULT;
1921                 break;
1922         case SONYPI_IOCGBAT1REM:
1923                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1924                         ret = -EIO;
1925                         break;
1926                 }
1927                 if (copy_to_user(argp, &val16, sizeof(val16)))
1928                         ret = -EFAULT;
1929                 break;
1930         case SONYPI_IOCGBAT2CAP:
1931                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1932                         ret = -EIO;
1933                         break;
1934                 }
1935                 if (copy_to_user(argp, &val16, sizeof(val16)))
1936                         ret = -EFAULT;
1937                 break;
1938         case SONYPI_IOCGBAT2REM:
1939                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1940                         ret = -EIO;
1941                         break;
1942                 }
1943                 if (copy_to_user(argp, &val16, sizeof(val16)))
1944                         ret = -EFAULT;
1945                 break;
1946         case SONYPI_IOCGBATFLAGS:
1947                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1948                         ret = -EIO;
1949                         break;
1950                 }
1951                 val8 &= 0x07;
1952                 if (copy_to_user(argp, &val8, sizeof(val8)))
1953                         ret = -EFAULT;
1954                 break;
1955         case SONYPI_IOCGBLUE:
1956                 val8 = spic_dev.bluetooth_power;
1957                 if (copy_to_user(argp, &val8, sizeof(val8)))
1958                         ret = -EFAULT;
1959                 break;
1960         case SONYPI_IOCSBLUE:
1961                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1962                         ret = -EFAULT;
1963                         break;
1964                 }
1965                 __sony_pic_set_bluetoothpower(val8);
1966                 break;
1967         /* FAN Controls */
1968         case SONYPI_IOCGFAN:
1969                 if (sony_pic_get_fanspeed(&val8)) {
1970                         ret = -EIO;
1971                         break;
1972                 }
1973                 if (copy_to_user(argp, &val8, sizeof(val8)))
1974                         ret = -EFAULT;
1975                 break;
1976         case SONYPI_IOCSFAN:
1977                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1978                         ret = -EFAULT;
1979                         break;
1980                 }
1981                 if (sony_pic_set_fanspeed(val8))
1982                         ret = -EIO;
1983                 break;
1984         /* GET Temperature (useful under APM) */
1985         case SONYPI_IOCGTEMP:
1986                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1987                         ret = -EIO;
1988                         break;
1989                 }
1990                 if (copy_to_user(argp, &val8, sizeof(val8)))
1991                         ret = -EFAULT;
1992                 break;
1993         default:
1994                 ret = -EINVAL;
1995         }
1996         mutex_unlock(&spic_dev.lock);
1997         return ret;
1998 }
1999
2000 static const struct file_operations sonypi_misc_fops = {
2001         .owner          = THIS_MODULE,
2002         .read           = sonypi_misc_read,
2003         .poll           = sonypi_misc_poll,
2004         .open           = sonypi_misc_open,
2005         .release        = sonypi_misc_release,
2006         .fasync         = sonypi_misc_fasync,
2007         .ioctl          = sonypi_misc_ioctl,
2008 };
2009
2010 static struct miscdevice sonypi_misc_device = {
2011         .minor          = MISC_DYNAMIC_MINOR,
2012         .name           = "sonypi",
2013         .fops           = &sonypi_misc_fops,
2014 };
2015
2016 static void sonypi_compat_report_event(u8 event)
2017 {
2018         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2019         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2020         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2021 }
2022
2023 static int sonypi_compat_init(void)
2024 {
2025         int error;
2026
2027         spin_lock_init(&sonypi_compat.fifo_lock);
2028         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2029                                          &sonypi_compat.fifo_lock);
2030         if (IS_ERR(sonypi_compat.fifo)) {
2031                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2032                 return PTR_ERR(sonypi_compat.fifo);
2033         }
2034
2035         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2036
2037         if (minor != -1)
2038                 sonypi_misc_device.minor = minor;
2039         error = misc_register(&sonypi_misc_device);
2040         if (error) {
2041                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2042                 goto err_free_kfifo;
2043         }
2044         if (minor == -1)
2045                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2046                        sonypi_misc_device.minor);
2047
2048         return 0;
2049
2050 err_free_kfifo:
2051         kfifo_free(sonypi_compat.fifo);
2052         return error;
2053 }
2054
2055 static void sonypi_compat_exit(void)
2056 {
2057         misc_deregister(&sonypi_misc_device);
2058         kfifo_free(sonypi_compat.fifo);
2059 }
2060 #else
2061 static int sonypi_compat_init(void) { return 0; }
2062 static void sonypi_compat_exit(void) { }
2063 static void sonypi_compat_report_event(u8 event) { }
2064 #endif /* CONFIG_SONYPI_COMPAT */
2065
2066 /*
2067  * ACPI callbacks
2068  */
2069 static acpi_status
2070 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2071 {
2072         u32 i;
2073         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2074
2075         switch (resource->type) {
2076         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2077         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2078                 return AE_OK;
2079
2080         case ACPI_RESOURCE_TYPE_IRQ:
2081                 {
2082                         struct acpi_resource_irq *p = &resource->data.irq;
2083                         struct sony_pic_irq *interrupt = NULL;
2084                         if (!p || !p->interrupt_count) {
2085                                 /*
2086                                  * IRQ descriptors may have no IRQ# bits set,
2087                                  * particularly those those w/ _STA disabled
2088                                  */
2089                                 dprintk("Blank IRQ resource\n");
2090                                 return AE_OK;
2091                         }
2092                         for (i = 0; i < p->interrupt_count; i++) {
2093                                 if (!p->interrupts[i]) {
2094                                         printk(KERN_WARNING DRV_PFX
2095                                                         "Invalid IRQ %d\n",
2096                                                         p->interrupts[i]);
2097                                         continue;
2098                                 }
2099                                 interrupt = kzalloc(sizeof(*interrupt),
2100                                                 GFP_KERNEL);
2101                                 if (!interrupt)
2102                                         return AE_ERROR;
2103
2104                                 list_add_tail(&interrupt->list, &dev->interrupts);
2105                                 interrupt->irq.triggering = p->triggering;
2106                                 interrupt->irq.polarity = p->polarity;
2107                                 interrupt->irq.sharable = p->sharable;
2108                                 interrupt->irq.interrupt_count = 1;
2109                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2110                         }
2111                         return AE_OK;
2112                 }
2113         case ACPI_RESOURCE_TYPE_IO:
2114                 {
2115                         struct acpi_resource_io *io = &resource->data.io;
2116                         struct sony_pic_ioport *ioport = NULL;
2117                         if (!io) {
2118                                 dprintk("Blank IO resource\n");
2119                                 return AE_OK;
2120                         }
2121
2122                         ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2123                         if (!ioport)
2124                                 return AE_ERROR;
2125
2126                         list_add_tail(&ioport->list, &dev->ioports);
2127                         memcpy(&ioport->io, io, sizeof(*io));
2128                         return AE_OK;
2129                 }
2130         default:
2131                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2132                                 resource->type);
2133
2134         case ACPI_RESOURCE_TYPE_END_TAG:
2135                 return AE_OK;
2136         }
2137         return AE_CTRL_TERMINATE;
2138 }
2139
2140 static int sony_pic_possible_resources(struct acpi_device *device)
2141 {
2142         int result = 0;
2143         acpi_status status = AE_OK;
2144
2145         if (!device)
2146                 return -EINVAL;
2147
2148         /* get device status */
2149         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2150         dprintk("Evaluating _STA\n");
2151         result = acpi_bus_get_status(device);
2152         if (result) {
2153                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2154                 goto end;
2155         }
2156
2157         if (!device->status.enabled)
2158                 dprintk("Device disabled\n");
2159         else
2160                 dprintk("Device enabled\n");
2161
2162         /*
2163          * Query and parse 'method'
2164          */
2165         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2166         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2167                         sony_pic_read_possible_resource, &spic_dev);
2168         if (ACPI_FAILURE(status)) {
2169                 printk(KERN_WARNING DRV_PFX
2170                                 "Failure evaluating %s\n",
2171                                 METHOD_NAME__PRS);
2172                 result = -ENODEV;
2173         }
2174 end:
2175         return result;
2176 }
2177
2178 /*
2179  *  Disable the spic device by calling its _DIS method
2180  */
2181 static int sony_pic_disable(struct acpi_device *device)
2182 {
2183         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2184                         "_DIS", NULL, NULL)))
2185                 return -ENXIO;
2186
2187         dprintk("Device disabled\n");
2188         return 0;
2189 }
2190
2191
2192 /*
2193  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2194  *
2195  *  Call _SRS to set current resources
2196  */
2197 static int sony_pic_enable(struct acpi_device *device,
2198                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2199 {
2200         acpi_status status;
2201         int result = 0;
2202         struct {
2203                 struct acpi_resource io_res;
2204                 struct acpi_resource irq_res;
2205                 struct acpi_resource end;
2206         } *resource;
2207         struct acpi_buffer buffer = { 0, NULL };
2208
2209         if (!ioport || !irq)
2210                 return -EINVAL;
2211
2212         /* init acpi_buffer */
2213         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2214         if (!resource)
2215                 return -ENOMEM;
2216
2217         buffer.length = sizeof(*resource) + 1;
2218         buffer.pointer = resource;
2219
2220         /* setup io resource */
2221         resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
2222         resource->io_res.length = sizeof(struct acpi_resource);
2223         memcpy(&resource->io_res.data.io, &ioport->io,
2224                         sizeof(struct acpi_resource_io));
2225
2226         /* setup irq resource */
2227         resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
2228         resource->irq_res.length = sizeof(struct acpi_resource);
2229         memcpy(&resource->irq_res.data.irq, &irq->irq,
2230                         sizeof(struct acpi_resource_irq));
2231         /* we requested a shared irq */
2232         resource->irq_res.data.irq.sharable = ACPI_SHARED;
2233
2234         resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
2235
2236         /* Attempt to set the resource */
2237         dprintk("Evaluating _SRS\n");
2238         status = acpi_set_current_resources(device->handle, &buffer);
2239
2240         /* check for total failure */
2241         if (ACPI_FAILURE(status)) {
2242                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
2243                 result = -ENODEV;
2244                 goto end;
2245         }
2246
2247         /* Necessary device initializations calls (from sonypi) */
2248         sony_pic_call1(0x82);
2249         sony_pic_call2(0x81, 0xff);
2250         sony_pic_call1(compat ? 0x92 : 0x82);
2251
2252 end:
2253         kfree(resource);
2254         return result;
2255 }
2256
2257 /*****************
2258  *
2259  * ISR: some event is available
2260  *
2261  *****************/
2262 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2263 {
2264         int i, j;
2265         u8 ev = 0;
2266         u8 data_mask = 0;
2267         u8 device_event = 0;
2268
2269         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2270
2271         ev = inb_p(dev->cur_ioport->io.minimum);
2272         data_mask = inb_p(dev->cur_ioport->io.minimum + dev->evport_offset);
2273
2274         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2275                         ev, data_mask, dev->cur_ioport->io.minimum, dev->evport_offset);
2276
2277         if (ev == 0x00 || ev == 0xff)
2278                 return IRQ_HANDLED;
2279
2280         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2281
2282                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2283                         continue;
2284
2285                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2286                     sony_pic_eventtypes[i].data)
2287                         continue;
2288
2289                 if (!(mask & sony_pic_eventtypes[i].mask))
2290                         continue;
2291
2292                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2293                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2294                                 device_event =
2295                                         sony_pic_eventtypes[i].events[j].event;
2296                                 goto found;
2297                         }
2298                 }
2299         }
2300         return IRQ_HANDLED;
2301
2302 found:
2303         sony_laptop_report_input_event(device_event);
2304         acpi_bus_generate_proc_event(spic_dev.acpi_dev, 1, device_event);
2305         sonypi_compat_report_event(device_event);
2306
2307         return IRQ_HANDLED;
2308 }
2309
2310 /*****************
2311  *
2312  *  ACPI driver
2313  *
2314  *****************/
2315 static int sony_pic_remove(struct acpi_device *device, int type)
2316 {
2317         struct sony_pic_ioport *io, *tmp_io;
2318         struct sony_pic_irq *irq, *tmp_irq;
2319
2320         if (sony_pic_disable(device)) {
2321                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2322                 return -ENXIO;
2323         }
2324
2325         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2326         release_region(spic_dev.cur_ioport->io.minimum,
2327                         spic_dev.cur_ioport->io.address_length);
2328
2329         sonypi_compat_exit();
2330
2331         sony_laptop_remove_input();
2332
2333         /* pf attrs */
2334         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2335         sony_pf_remove();
2336
2337         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2338                 list_del(&io->list);
2339                 kfree(io);
2340         }
2341         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2342                 list_del(&irq->list);
2343                 kfree(irq);
2344         }
2345         spic_dev.cur_ioport = NULL;
2346         spic_dev.cur_irq = NULL;
2347
2348         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2349         return 0;
2350 }
2351
2352 static int sony_pic_add(struct acpi_device *device)
2353 {
2354         int result;
2355         struct sony_pic_ioport *io, *tmp_io;
2356         struct sony_pic_irq *irq, *tmp_irq;
2357
2358         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2359                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2360
2361         spic_dev.acpi_dev = device;
2362         strcpy(acpi_device_class(device), "sony/hotkey");
2363         spic_dev.model = sony_pic_detect_device_type();
2364         mutex_init(&spic_dev.lock);
2365
2366         /* model specific characteristics */
2367         switch(spic_dev.model) {
2368                 case SONYPI_DEVICE_TYPE1:
2369                         spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
2370                         break;
2371                 case SONYPI_DEVICE_TYPE3:
2372                         spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
2373                         break;
2374                 case SONYPI_DEVICE_TYPE2:
2375                 default:
2376                         spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
2377                         break;
2378         }
2379
2380         /* read _PRS resources */
2381         result = sony_pic_possible_resources(device);
2382         if (result) {
2383                 printk(KERN_ERR DRV_PFX
2384                                 "Unabe to read possible resources.\n");
2385                 goto err_free_resources;
2386         }
2387
2388         /* setup input devices and helper fifo */
2389         result = sony_laptop_setup_input();
2390         if (result) {
2391                 printk(KERN_ERR DRV_PFX
2392                                 "Unabe to create input devices.\n");
2393                 goto err_free_resources;
2394         }
2395
2396         if (sonypi_compat_init())
2397                 goto err_remove_input;
2398
2399         /* request io port */
2400         list_for_each_entry(io, &spic_dev.ioports, list) {
2401                 if (request_region(io->io.minimum, io->io.address_length,
2402                                         "Sony Programable I/O Device")) {
2403                         dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
2404                                         io->io.minimum, io->io.maximum,
2405                                         io->io.address_length);
2406                         spic_dev.cur_ioport = io;
2407                         break;
2408                 }
2409         }
2410         if (!spic_dev.cur_ioport) {
2411                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2412                 result = -ENODEV;
2413                 goto err_remove_compat;
2414         }
2415
2416         /* request IRQ */
2417         list_for_each_entry(irq, &spic_dev.interrupts, list) {
2418                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2419                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2420                         dprintk("IRQ: %d - triggering: %d - "
2421                                         "polarity: %d - shr: %d\n",
2422                                         irq->irq.interrupts[0],
2423                                         irq->irq.triggering,
2424                                         irq->irq.polarity,
2425                                         irq->irq.sharable);
2426                         spic_dev.cur_irq = irq;
2427                         break;
2428                 }
2429         }
2430         if (!spic_dev.cur_irq) {
2431                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2432                 result = -ENODEV;
2433                 goto err_release_region;
2434         }
2435
2436         /* set resource status _SRS */
2437         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2438         if (result) {
2439                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2440                 goto err_free_irq;
2441         }
2442
2443         spic_dev.bluetooth_power = -1;
2444         /* create device attributes */
2445         result = sony_pf_add();
2446         if (result)
2447                 goto err_disable_device;
2448
2449         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2450         if (result)
2451                 goto err_remove_pf;
2452
2453         return 0;
2454
2455 err_remove_pf:
2456         sony_pf_remove();
2457
2458 err_disable_device:
2459         sony_pic_disable(device);
2460
2461 err_free_irq:
2462         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2463
2464 err_release_region:
2465         release_region(spic_dev.cur_ioport->io.minimum,
2466                         spic_dev.cur_ioport->io.address_length);
2467
2468 err_remove_compat:
2469         sonypi_compat_exit();
2470
2471 err_remove_input:
2472         sony_laptop_remove_input();
2473
2474 err_free_resources:
2475         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2476                 list_del(&io->list);
2477                 kfree(io);
2478         }
2479         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2480                 list_del(&irq->list);
2481                 kfree(irq);
2482         }
2483         spic_dev.cur_ioport = NULL;
2484         spic_dev.cur_irq = NULL;
2485
2486         return result;
2487 }
2488
2489 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2490 {
2491         if (sony_pic_disable(device))
2492                 return -ENXIO;
2493         return 0;
2494 }
2495
2496 static int sony_pic_resume(struct acpi_device *device)
2497 {
2498         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2499         return 0;
2500 }
2501
2502 static const struct acpi_device_id sony_pic_device_ids[] = {
2503         {SONY_PIC_HID, 0},
2504         {"", 0},
2505 };
2506
2507 static struct acpi_driver sony_pic_driver = {
2508         .name = SONY_PIC_DRIVER_NAME,
2509         .class = SONY_PIC_CLASS,
2510         .ids = sony_pic_device_ids,
2511         .owner = THIS_MODULE,
2512         .ops = {
2513                 .add = sony_pic_add,
2514                 .remove = sony_pic_remove,
2515                 .suspend = sony_pic_suspend,
2516                 .resume = sony_pic_resume,
2517                 },
2518 };
2519
2520 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2521         {
2522                 .ident = "Sony Vaio",
2523                 .matches = {
2524                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2525                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2526                 },
2527         },
2528         {
2529                 .ident = "Sony Vaio",
2530                 .matches = {
2531                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2532                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2533                 },
2534         },
2535         { }
2536 };
2537
2538 static int __init sony_laptop_init(void)
2539 {
2540         int result;
2541
2542         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2543                 result = acpi_bus_register_driver(&sony_pic_driver);
2544                 if (result) {
2545                         printk(KERN_ERR DRV_PFX
2546                                         "Unable to register SPIC driver.");
2547                         goto out;
2548                 }
2549         }
2550
2551         result = acpi_bus_register_driver(&sony_nc_driver);
2552         if (result) {
2553                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2554                 goto out_unregister_pic;
2555         }
2556
2557         return 0;
2558
2559 out_unregister_pic:
2560         if (!no_spic)
2561                 acpi_bus_unregister_driver(&sony_pic_driver);
2562 out:
2563         return result;
2564 }
2565
2566 static void __exit sony_laptop_exit(void)
2567 {
2568         acpi_bus_unregister_driver(&sony_nc_driver);
2569         if (!no_spic)
2570                 acpi_bus_unregister_driver(&sony_pic_driver);
2571 }
2572
2573 module_init(sony_laptop_init);
2574 module_exit(sony_laptop_exit);