91da6880ae9390fc2e46490836cd7de97ba27367
[linux-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 C 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-C"),
865                         },
866                 },
867                 { }
868 };
869
870 /*
871  * ACPI callbacks
872  */
873 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
874 {
875         struct sony_nc_event *evmap;
876         u32 ev = event;
877         int result;
878
879         if (ev == 0x92) {
880                 /* read the key pressed from EC.GECR
881                  * A call to SN07 with 0x0202 will do it as well respecting
882                  * the current protocol on different OSes
883                  *
884                  * Note: the path for GECR may be
885                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
886                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
887                  *
888                  * TODO: we may want to do the same for the older GHKE -need
889                  *       dmi list- so this snippet may become one more callback.
890                  */
891                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
892                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
893                 else
894                         ev = result & 0xFF;
895         }
896
897         if (sony_nc_events)
898                 for (evmap = sony_nc_events; evmap->event; evmap++) {
899                         if (evmap->data == ev) {
900                                 ev = evmap->event;
901                                 break;
902                         }
903                 }
904
905         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
906         sony_laptop_report_input_event(ev);
907         acpi_bus_generate_event(sony_nc_acpi_device, 1, ev);
908 }
909
910 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
911                                       void *context, void **return_value)
912 {
913         struct acpi_namespace_node *node;
914         union acpi_operand_object *operand;
915
916         node = (struct acpi_namespace_node *)handle;
917         operand = (union acpi_operand_object *)node->object;
918
919         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
920                (u32) operand->method.param_count);
921
922         return AE_OK;
923 }
924
925 /*
926  * ACPI device
927  */
928 static int sony_nc_resume(struct acpi_device *device)
929 {
930         struct sony_nc_value *item;
931
932         for (item = sony_nc_values; item->name; item++) {
933                 int ret;
934
935                 if (!item->valid)
936                         continue;
937                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
938                                        item->value, NULL);
939                 if (ret < 0) {
940                         printk("%s: %d\n", __FUNCTION__, ret);
941                         break;
942                 }
943         }
944
945         /* set the last requested brightness level */
946         if (sony_backlight_device &&
947                         !sony_backlight_update_status(sony_backlight_device))
948                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
949
950         /* re-initialize models with specific requirements */
951         dmi_check_system(sony_nc_ids);
952
953         return 0;
954 }
955
956 static int sony_nc_add(struct acpi_device *device)
957 {
958         acpi_status status;
959         int result = 0;
960         acpi_handle handle;
961         struct sony_nc_value *item;
962
963         printk(KERN_INFO DRV_PFX "%s v%s.\n",
964                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
965
966         sony_nc_acpi_device = device;
967         strcpy(acpi_device_class(device), "sony/hotkey");
968
969         sony_nc_acpi_handle = device->handle;
970
971         /* read device status */
972         result = acpi_bus_get_status(device);
973         /* bail IFF the above call was successful and the device is not present */
974         if (!result && !device->status.present) {
975                 dprintk("Device not present\n");
976                 result = -ENODEV;
977                 goto outwalk;
978         }
979
980         if (debug) {
981                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
982                                              1, sony_walk_callback, NULL, NULL);
983                 if (ACPI_FAILURE(status)) {
984                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
985                         result = -ENODEV;
986                         goto outwalk;
987                 }
988         }
989
990         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
991          * should be respected as we already checked for the device presence above */
992         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
993                 dprintk("Invoking _INI\n");
994                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
995                                                 NULL, NULL)))
996                         dprintk("_INI Method failed\n");
997         }
998
999         /* setup input devices and helper fifo */
1000         result = sony_laptop_setup_input();
1001         if (result) {
1002                 printk(KERN_ERR DRV_PFX
1003                                 "Unabe to create input devices.\n");
1004                 goto outwalk;
1005         }
1006
1007         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1008                                              ACPI_DEVICE_NOTIFY,
1009                                              sony_acpi_notify, NULL);
1010         if (ACPI_FAILURE(status)) {
1011                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1012                 result = -ENODEV;
1013                 goto outinput;
1014         }
1015
1016         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1017                 sony_backlight_device = backlight_device_register("sony", NULL,
1018                                                                   NULL,
1019                                                                   &sony_backlight_ops);
1020
1021                 if (IS_ERR(sony_backlight_device)) {
1022                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1023                         sony_backlight_device = NULL;
1024                 } else {
1025                         sony_backlight_device->props.brightness =
1026                             sony_backlight_get_brightness
1027                             (sony_backlight_device);
1028                         sony_backlight_device->props.max_brightness = 
1029                             SONY_MAX_BRIGHTNESS - 1;
1030                 }
1031
1032         }
1033
1034         /* initialize models with specific requirements */
1035         dmi_check_system(sony_nc_ids);
1036
1037         result = sony_pf_add();
1038         if (result)
1039                 goto outbacklight;
1040
1041         /* create sony_pf sysfs attributes related to the SNC device */
1042         for (item = sony_nc_values; item->name; ++item) {
1043
1044                 if (!debug && item->debug)
1045                         continue;
1046
1047                 /* find the available acpiget as described in the DSDT */
1048                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1049                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1050                                                          *item->acpiget,
1051                                                          &handle))) {
1052                                 dprintk("Found %s getter: %s\n",
1053                                                 item->name, *item->acpiget);
1054                                 item->devattr.attr.mode |= S_IRUGO;
1055                                 break;
1056                         }
1057                 }
1058
1059                 /* find the available acpiset as described in the DSDT */
1060                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1061                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1062                                                          *item->acpiset,
1063                                                          &handle))) {
1064                                 dprintk("Found %s setter: %s\n",
1065                                                 item->name, *item->acpiset);
1066                                 item->devattr.attr.mode |= S_IWUSR;
1067                                 break;
1068                         }
1069                 }
1070
1071                 if (item->devattr.attr.mode != 0) {
1072                         result =
1073                             device_create_file(&sony_pf_device->dev,
1074                                                &item->devattr);
1075                         if (result)
1076                                 goto out_sysfs;
1077                 }
1078         }
1079
1080         return 0;
1081
1082       out_sysfs:
1083         for (item = sony_nc_values; item->name; ++item) {
1084                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1085         }
1086         sony_pf_remove();
1087
1088       outbacklight:
1089         if (sony_backlight_device)
1090                 backlight_device_unregister(sony_backlight_device);
1091
1092         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1093                                             ACPI_DEVICE_NOTIFY,
1094                                             sony_acpi_notify);
1095         if (ACPI_FAILURE(status))
1096                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1097
1098       outinput:
1099         sony_laptop_remove_input();
1100
1101       outwalk:
1102         return result;
1103 }
1104
1105 static int sony_nc_remove(struct acpi_device *device, int type)
1106 {
1107         acpi_status status;
1108         struct sony_nc_value *item;
1109
1110         if (sony_backlight_device)
1111                 backlight_device_unregister(sony_backlight_device);
1112
1113         sony_nc_acpi_device = NULL;
1114
1115         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1116                                             ACPI_DEVICE_NOTIFY,
1117                                             sony_acpi_notify);
1118         if (ACPI_FAILURE(status))
1119                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1120
1121         for (item = sony_nc_values; item->name; ++item) {
1122                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1123         }
1124
1125         sony_pf_remove();
1126         sony_laptop_remove_input();
1127         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1128
1129         return 0;
1130 }
1131
1132 static const struct acpi_device_id sony_device_ids[] = {
1133         {SONY_NC_HID, 0},
1134         {SONY_PIC_HID, 0},
1135         {"", 0},
1136 };
1137 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1138
1139 static const struct acpi_device_id sony_nc_device_ids[] = {
1140         {SONY_NC_HID, 0},
1141         {"", 0},
1142 };
1143
1144 static struct acpi_driver sony_nc_driver = {
1145         .name = SONY_NC_DRIVER_NAME,
1146         .class = SONY_NC_CLASS,
1147         .ids = sony_nc_device_ids,
1148         .owner = THIS_MODULE,
1149         .ops = {
1150                 .add = sony_nc_add,
1151                 .remove = sony_nc_remove,
1152                 .resume = sony_nc_resume,
1153                 },
1154 };
1155
1156 /*********** SPIC (SNY6001) Device ***********/
1157
1158 #define SONYPI_DEVICE_TYPE1     0x00000001
1159 #define SONYPI_DEVICE_TYPE2     0x00000002
1160 #define SONYPI_DEVICE_TYPE3     0x00000004
1161
1162 #define SONYPI_TYPE1_OFFSET     0x04
1163 #define SONYPI_TYPE2_OFFSET     0x12
1164 #define SONYPI_TYPE3_OFFSET     0x12
1165
1166 struct sony_pic_ioport {
1167         struct acpi_resource_io io;
1168         struct list_head        list;
1169 };
1170
1171 struct sony_pic_irq {
1172         struct acpi_resource_irq        irq;
1173         struct list_head                list;
1174 };
1175
1176 struct sony_pic_dev {
1177         int                     model;
1178         u16                     evport_offset;
1179         u8                      camera_power;
1180         u8                      bluetooth_power;
1181         u8                      wwan_power;
1182         struct acpi_device      *acpi_dev;
1183         struct sony_pic_irq     *cur_irq;
1184         struct sony_pic_ioport  *cur_ioport;
1185         struct list_head        interrupts;
1186         struct list_head        ioports;
1187         struct mutex            lock;
1188 };
1189
1190 static struct sony_pic_dev spic_dev = {
1191         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1192         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1193 };
1194
1195 /* Event masks */
1196 #define SONYPI_JOGGER_MASK                      0x00000001
1197 #define SONYPI_CAPTURE_MASK                     0x00000002
1198 #define SONYPI_FNKEY_MASK                       0x00000004
1199 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1200 #define SONYPI_PKEY_MASK                        0x00000010
1201 #define SONYPI_BACK_MASK                        0x00000020
1202 #define SONYPI_HELP_MASK                        0x00000040
1203 #define SONYPI_LID_MASK                         0x00000080
1204 #define SONYPI_ZOOM_MASK                        0x00000100
1205 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1206 #define SONYPI_MEYE_MASK                        0x00000400
1207 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1208 #define SONYPI_BATTERY_MASK                     0x00001000
1209 #define SONYPI_WIRELESS_MASK                    0x00002000
1210
1211 struct sonypi_event {
1212         u8      data;
1213         u8      event;
1214 };
1215
1216 /* The set of possible button release events */
1217 static struct sonypi_event sonypi_releaseev[] = {
1218         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1219         { 0, 0 }
1220 };
1221
1222 /* The set of possible jogger events  */
1223 static struct sonypi_event sonypi_joggerev[] = {
1224         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1225         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1226         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1227         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1228         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1229         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1230         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1231         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1232         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1233         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1234         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1235         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1236         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1237         { 0, 0 }
1238 };
1239
1240 /* The set of possible capture button events */
1241 static struct sonypi_event sonypi_captureev[] = {
1242         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1243         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1244         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1245         { 0, 0 }
1246 };
1247
1248 /* The set of possible fnkeys events */
1249 static struct sonypi_event sonypi_fnkeyev[] = {
1250         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1251         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1252         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1253         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1254         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1255         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1256         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1257         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1258         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1259         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1260         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1261         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1262         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1263         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1264         { 0x21, SONYPI_EVENT_FNKEY_1 },
1265         { 0x22, SONYPI_EVENT_FNKEY_2 },
1266         { 0x31, SONYPI_EVENT_FNKEY_D },
1267         { 0x32, SONYPI_EVENT_FNKEY_E },
1268         { 0x33, SONYPI_EVENT_FNKEY_F },
1269         { 0x34, SONYPI_EVENT_FNKEY_S },
1270         { 0x35, SONYPI_EVENT_FNKEY_B },
1271         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1272         { 0, 0 }
1273 };
1274
1275 /* The set of possible program key events */
1276 static struct sonypi_event sonypi_pkeyev[] = {
1277         { 0x01, SONYPI_EVENT_PKEY_P1 },
1278         { 0x02, SONYPI_EVENT_PKEY_P2 },
1279         { 0x04, SONYPI_EVENT_PKEY_P3 },
1280         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1281         { 0, 0 }
1282 };
1283
1284 /* The set of possible bluetooth events */
1285 static struct sonypi_event sonypi_blueev[] = {
1286         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1287         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1288         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1289         { 0, 0 }
1290 };
1291
1292 /* The set of possible wireless events */
1293 static struct sonypi_event sonypi_wlessev[] = {
1294         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1295         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1296         { 0, 0 }
1297 };
1298
1299 /* The set of possible back button events */
1300 static struct sonypi_event sonypi_backev[] = {
1301         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1302         { 0, 0 }
1303 };
1304
1305 /* The set of possible help button events */
1306 static struct sonypi_event sonypi_helpev[] = {
1307         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1308         { 0, 0 }
1309 };
1310
1311
1312 /* The set of possible lid events */
1313 static struct sonypi_event sonypi_lidev[] = {
1314         { 0x51, SONYPI_EVENT_LID_CLOSED },
1315         { 0x50, SONYPI_EVENT_LID_OPENED },
1316         { 0, 0 }
1317 };
1318
1319 /* The set of possible zoom events */
1320 static struct sonypi_event sonypi_zoomev[] = {
1321         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1322         { 0, 0 }
1323 };
1324
1325 /* The set of possible thumbphrase events */
1326 static struct sonypi_event sonypi_thumbphraseev[] = {
1327         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1328         { 0, 0 }
1329 };
1330
1331 /* The set of possible motioneye camera events */
1332 static struct sonypi_event sonypi_meyeev[] = {
1333         { 0x00, SONYPI_EVENT_MEYE_FACE },
1334         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1335         { 0, 0 }
1336 };
1337
1338 /* The set of possible memorystick events */
1339 static struct sonypi_event sonypi_memorystickev[] = {
1340         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1341         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1342         { 0, 0 }
1343 };
1344
1345 /* The set of possible battery events */
1346 static struct sonypi_event sonypi_batteryev[] = {
1347         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1348         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1349         { 0, 0 }
1350 };
1351
1352 static struct sonypi_eventtypes {
1353         int                     model;
1354         u8                      data;
1355         unsigned long           mask;
1356         struct sonypi_event *   events;
1357 } sony_pic_eventtypes[] = {
1358         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1359         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1360         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1361         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1362         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1363         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1364         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1365         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1366         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1367         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1368
1369         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1370         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1371         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1372         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1373         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1374         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1375         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1376         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1377         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1378         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1379         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1380         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1381         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1382         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1383
1384         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1385         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1386         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1387         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1388         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1389         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1390         { 0 }
1391 };
1392
1393 static int sony_pic_detect_device_type(void)
1394 {
1395         struct pci_dev *pcidev;
1396         int model = 0;
1397
1398         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1399                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1400                 model = SONYPI_DEVICE_TYPE1;
1401
1402         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1403                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1404                 model = SONYPI_DEVICE_TYPE3;
1405
1406         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1407                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1408                 model = SONYPI_DEVICE_TYPE3;
1409
1410         else
1411                 model = SONYPI_DEVICE_TYPE2;
1412
1413         if (pcidev)
1414                 pci_dev_put(pcidev);
1415
1416         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1417                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1418                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1419         return model;
1420 }
1421
1422 #define ITERATIONS_LONG         10000
1423 #define ITERATIONS_SHORT        10
1424 #define wait_on_command(command, iterations) {                          \
1425         unsigned int n = iterations;                                    \
1426         while (--n && (command))                                        \
1427                 udelay(1);                                              \
1428         if (!n)                                                         \
1429                 dprintk("command failed at %s : %s (line %d)\n",        \
1430                                 __FILE__, __FUNCTION__, __LINE__);      \
1431 }
1432
1433 static u8 sony_pic_call1(u8 dev)
1434 {
1435         u8 v1, v2;
1436
1437         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1438                         ITERATIONS_LONG);
1439         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1440         v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
1441         v2 = inb_p(spic_dev.cur_ioport->io.minimum);
1442         dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1443         return v2;
1444 }
1445
1446 static u8 sony_pic_call2(u8 dev, u8 fn)
1447 {
1448         u8 v1;
1449
1450         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1451                         ITERATIONS_LONG);
1452         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1453         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1454                         ITERATIONS_LONG);
1455         outb(fn, spic_dev.cur_ioport->io.minimum);
1456         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1457         dprintk("sony_pic_call2: 0x%.4x\n", v1);
1458         return v1;
1459 }
1460
1461 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1462 {
1463         u8 v1;
1464
1465         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1466         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1467         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1468         outb(fn, spic_dev.cur_ioport->io.minimum);
1469         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1470         outb(v, spic_dev.cur_ioport->io.minimum);
1471         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1472         dprintk("sony_pic_call3: 0x%.4x\n", v1);
1473         return v1;
1474 }
1475
1476 /* camera tests and poweron/poweroff */
1477 #define SONYPI_CAMERA_PICTURE           5
1478 #define SONYPI_CAMERA_CONTROL           0x10
1479
1480 #define SONYPI_CAMERA_BRIGHTNESS                0
1481 #define SONYPI_CAMERA_CONTRAST                  1
1482 #define SONYPI_CAMERA_HUE                       2
1483 #define SONYPI_CAMERA_COLOR                     3
1484 #define SONYPI_CAMERA_SHARPNESS                 4
1485
1486 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1487 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1488 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1489 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1490
1491 /* the rest don't need a loop until not 0xff */
1492 #define SONYPI_CAMERA_AGC                       6
1493 #define SONYPI_CAMERA_AGC_MASK                  0x30
1494 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1495
1496 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1497 #define SONYPI_CAMERA_CONTROL                   0x10
1498
1499 #define SONYPI_CAMERA_STATUS                    7
1500 #define SONYPI_CAMERA_STATUS_READY              0x2
1501 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1502
1503 #define SONYPI_DIRECTION_BACKWARDS              0x4
1504
1505 #define SONYPI_CAMERA_REVISION                  8
1506 #define SONYPI_CAMERA_ROMVERSION                9
1507
1508 static int __sony_pic_camera_ready(void)
1509 {
1510         u8 v;
1511
1512         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1513         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1514 }
1515
1516 static int __sony_pic_camera_off(void)
1517 {
1518         if (!camera) {
1519                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1520                 return -ENODEV;
1521         }
1522
1523         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1524                                 SONYPI_CAMERA_MUTE_MASK),
1525                         ITERATIONS_SHORT);
1526
1527         if (spic_dev.camera_power) {
1528                 sony_pic_call2(0x91, 0);
1529                 spic_dev.camera_power = 0;
1530         }
1531         return 0;
1532 }
1533
1534 static int __sony_pic_camera_on(void)
1535 {
1536         int i, j, x;
1537
1538         if (!camera) {
1539                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1540                 return -ENODEV;
1541         }
1542
1543         if (spic_dev.camera_power)
1544                 return 0;
1545
1546         for (j = 5; j > 0; j--) {
1547
1548                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1549                         msleep(10);
1550                 sony_pic_call1(0x93);
1551
1552                 for (i = 400; i > 0; i--) {
1553                         if (__sony_pic_camera_ready())
1554                                 break;
1555                         msleep(10);
1556                 }
1557                 if (i)
1558                         break;
1559         }
1560
1561         if (j == 0) {
1562                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1563                 return -ENODEV;
1564         }
1565
1566         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1567                                 0x5a),
1568                         ITERATIONS_SHORT);
1569
1570         spic_dev.camera_power = 1;
1571         return 0;
1572 }
1573
1574 /* External camera command (exported to the motion eye v4l driver) */
1575 int sony_pic_camera_command(int command, u8 value)
1576 {
1577         if (!camera)
1578                 return -EIO;
1579
1580         mutex_lock(&spic_dev.lock);
1581
1582         switch (command) {
1583         case SONY_PIC_COMMAND_SETCAMERA:
1584                 if (value)
1585                         __sony_pic_camera_on();
1586                 else
1587                         __sony_pic_camera_off();
1588                 break;
1589         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1590                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1591                                 ITERATIONS_SHORT);
1592                 break;
1593         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1594                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1595                                 ITERATIONS_SHORT);
1596                 break;
1597         case SONY_PIC_COMMAND_SETCAMERAHUE:
1598                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1599                                 ITERATIONS_SHORT);
1600                 break;
1601         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1602                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1603                                 ITERATIONS_SHORT);
1604                 break;
1605         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1606                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1607                                 ITERATIONS_SHORT);
1608                 break;
1609         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1610                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1611                                 ITERATIONS_SHORT);
1612                 break;
1613         case SONY_PIC_COMMAND_SETCAMERAAGC:
1614                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1615                                 ITERATIONS_SHORT);
1616                 break;
1617         default:
1618                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1619                        command);
1620                 break;
1621         }
1622         mutex_unlock(&spic_dev.lock);
1623         return 0;
1624 }
1625 EXPORT_SYMBOL(sony_pic_camera_command);
1626
1627 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1628 static void sony_pic_set_wwanpower(u8 state)
1629 {
1630         state = !!state;
1631         mutex_lock(&spic_dev.lock);
1632         if (spic_dev.wwan_power == state) {
1633                 mutex_unlock(&spic_dev.lock);
1634                 return;
1635         }
1636         sony_pic_call2(0xB0, state);
1637         spic_dev.wwan_power = state;
1638         mutex_unlock(&spic_dev.lock);
1639 }
1640
1641 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1642                 struct device_attribute *attr,
1643                 const char *buffer, size_t count)
1644 {
1645         unsigned long value;
1646         if (count > 31)
1647                 return -EINVAL;
1648
1649         value = simple_strtoul(buffer, NULL, 10);
1650         sony_pic_set_wwanpower(value);
1651
1652         return count;
1653 }
1654
1655 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1656                 struct device_attribute *attr, char *buffer)
1657 {
1658         ssize_t count;
1659         mutex_lock(&spic_dev.lock);
1660         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1661         mutex_unlock(&spic_dev.lock);
1662         return count;
1663 }
1664
1665 /* bluetooth subsystem power state */
1666 static void __sony_pic_set_bluetoothpower(u8 state)
1667 {
1668         state = !!state;
1669         if (spic_dev.bluetooth_power == state)
1670                 return;
1671         sony_pic_call2(0x96, state);
1672         sony_pic_call1(0x82);
1673         spic_dev.bluetooth_power = state;
1674 }
1675
1676 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1677                 struct device_attribute *attr,
1678                 const char *buffer, size_t count)
1679 {
1680         unsigned long value;
1681         if (count > 31)
1682                 return -EINVAL;
1683
1684         value = simple_strtoul(buffer, NULL, 10);
1685         mutex_lock(&spic_dev.lock);
1686         __sony_pic_set_bluetoothpower(value);
1687         mutex_unlock(&spic_dev.lock);
1688
1689         return count;
1690 }
1691
1692 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1693                 struct device_attribute *attr, char *buffer)
1694 {
1695         ssize_t count = 0;
1696         mutex_lock(&spic_dev.lock);
1697         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1698         mutex_unlock(&spic_dev.lock);
1699         return count;
1700 }
1701
1702 /* fan speed */
1703 /* FAN0 information (reverse engineered from ACPI tables) */
1704 #define SONY_PIC_FAN0_STATUS    0x93
1705 static int sony_pic_set_fanspeed(unsigned long value)
1706 {
1707         return ec_write(SONY_PIC_FAN0_STATUS, value);
1708 }
1709
1710 static int sony_pic_get_fanspeed(u8 *value)
1711 {
1712         return ec_read(SONY_PIC_FAN0_STATUS, value);
1713 }
1714
1715 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1716                 struct device_attribute *attr,
1717                 const char *buffer, size_t count)
1718 {
1719         unsigned long value;
1720         if (count > 31)
1721                 return -EINVAL;
1722
1723         value = simple_strtoul(buffer, NULL, 10);
1724         if (sony_pic_set_fanspeed(value))
1725                 return -EIO;
1726
1727         return count;
1728 }
1729
1730 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1731                 struct device_attribute *attr, char *buffer)
1732 {
1733         u8 value = 0;
1734         if (sony_pic_get_fanspeed(&value))
1735                 return -EIO;
1736
1737         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1738 }
1739
1740 #define SPIC_ATTR(_name, _mode)                                 \
1741 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1742                 _mode, sony_pic_## _name ##_show,               \
1743                 sony_pic_## _name ##_store)
1744
1745 static SPIC_ATTR(bluetoothpower, 0644);
1746 static SPIC_ATTR(wwanpower, 0644);
1747 static SPIC_ATTR(fanspeed, 0644);
1748
1749 static struct attribute *spic_attributes[] = {
1750         &spic_attr_bluetoothpower.attr,
1751         &spic_attr_wwanpower.attr,
1752         &spic_attr_fanspeed.attr,
1753         NULL
1754 };
1755
1756 static struct attribute_group spic_attribute_group = {
1757         .attrs = spic_attributes
1758 };
1759
1760 /******** SONYPI compatibility **********/
1761 #ifdef CONFIG_SONYPI_COMPAT
1762
1763 /* battery / brightness / temperature  addresses */
1764 #define SONYPI_BAT_FLAGS        0x81
1765 #define SONYPI_LCD_LIGHT        0x96
1766 #define SONYPI_BAT1_PCTRM       0xa0
1767 #define SONYPI_BAT1_LEFT        0xa2
1768 #define SONYPI_BAT1_MAXRT       0xa4
1769 #define SONYPI_BAT2_PCTRM       0xa8
1770 #define SONYPI_BAT2_LEFT        0xaa
1771 #define SONYPI_BAT2_MAXRT       0xac
1772 #define SONYPI_BAT1_MAXTK       0xb0
1773 #define SONYPI_BAT1_FULL        0xb2
1774 #define SONYPI_BAT2_MAXTK       0xb8
1775 #define SONYPI_BAT2_FULL        0xba
1776 #define SONYPI_TEMP_STATUS      0xC1
1777
1778 struct sonypi_compat_s {
1779         struct fasync_struct    *fifo_async;
1780         struct kfifo            *fifo;
1781         spinlock_t              fifo_lock;
1782         wait_queue_head_t       fifo_proc_list;
1783         atomic_t                open_count;
1784 };
1785 static struct sonypi_compat_s sonypi_compat = {
1786         .open_count = ATOMIC_INIT(0),
1787 };
1788
1789 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1790 {
1791         int retval;
1792
1793         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1794         if (retval < 0)
1795                 return retval;
1796         return 0;
1797 }
1798
1799 static int sonypi_misc_release(struct inode *inode, struct file *file)
1800 {
1801         sonypi_misc_fasync(-1, file, 0);
1802         atomic_dec(&sonypi_compat.open_count);
1803         return 0;
1804 }
1805
1806 static int sonypi_misc_open(struct inode *inode, struct file *file)
1807 {
1808         /* Flush input queue on first open */
1809         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1810                 kfifo_reset(sonypi_compat.fifo);
1811         return 0;
1812 }
1813
1814 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1815                                 size_t count, loff_t *pos)
1816 {
1817         ssize_t ret;
1818         unsigned char c;
1819
1820         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1821             (file->f_flags & O_NONBLOCK))
1822                 return -EAGAIN;
1823
1824         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1825                                        kfifo_len(sonypi_compat.fifo) != 0);
1826         if (ret)
1827                 return ret;
1828
1829         while (ret < count &&
1830                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1831                 if (put_user(c, buf++))
1832                         return -EFAULT;
1833                 ret++;
1834         }
1835
1836         if (ret > 0) {
1837                 struct inode *inode = file->f_path.dentry->d_inode;
1838                 inode->i_atime = current_fs_time(inode->i_sb);
1839         }
1840
1841         return ret;
1842 }
1843
1844 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1845 {
1846         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1847         if (kfifo_len(sonypi_compat.fifo))
1848                 return POLLIN | POLLRDNORM;
1849         return 0;
1850 }
1851
1852 static int ec_read16(u8 addr, u16 *value)
1853 {
1854         u8 val_lb, val_hb;
1855         if (ec_read(addr, &val_lb))
1856                 return -1;
1857         if (ec_read(addr + 1, &val_hb))
1858                 return -1;
1859         *value = val_lb | (val_hb << 8);
1860         return 0;
1861 }
1862
1863 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1864                              unsigned int cmd, unsigned long arg)
1865 {
1866         int ret = 0;
1867         void __user *argp = (void __user *)arg;
1868         u8 val8;
1869         u16 val16;
1870         int value;
1871
1872         mutex_lock(&spic_dev.lock);
1873         switch (cmd) {
1874         case SONYPI_IOCGBRT:
1875                 if (sony_backlight_device == NULL) {
1876                         ret = -EIO;
1877                         break;
1878                 }
1879                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1880                         ret = -EIO;
1881                         break;
1882                 }
1883                 val8 = ((value & 0xff) - 1) << 5;
1884                 if (copy_to_user(argp, &val8, sizeof(val8)))
1885                                 ret = -EFAULT;
1886                 break;
1887         case SONYPI_IOCSBRT:
1888                 if (sony_backlight_device == NULL) {
1889                         ret = -EIO;
1890                         break;
1891                 }
1892                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1893                         ret = -EFAULT;
1894                         break;
1895                 }
1896                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1897                                 (val8 >> 5) + 1, NULL)) {
1898                         ret = -EIO;
1899                         break;
1900                 }
1901                 /* sync the backlight device status */
1902                 sony_backlight_device->props.brightness =
1903                     sony_backlight_get_brightness(sony_backlight_device);
1904                 break;
1905         case SONYPI_IOCGBAT1CAP:
1906                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1907                         ret = -EIO;
1908                         break;
1909                 }
1910                 if (copy_to_user(argp, &val16, sizeof(val16)))
1911                         ret = -EFAULT;
1912                 break;
1913         case SONYPI_IOCGBAT1REM:
1914                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1915                         ret = -EIO;
1916                         break;
1917                 }
1918                 if (copy_to_user(argp, &val16, sizeof(val16)))
1919                         ret = -EFAULT;
1920                 break;
1921         case SONYPI_IOCGBAT2CAP:
1922                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1923                         ret = -EIO;
1924                         break;
1925                 }
1926                 if (copy_to_user(argp, &val16, sizeof(val16)))
1927                         ret = -EFAULT;
1928                 break;
1929         case SONYPI_IOCGBAT2REM:
1930                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1931                         ret = -EIO;
1932                         break;
1933                 }
1934                 if (copy_to_user(argp, &val16, sizeof(val16)))
1935                         ret = -EFAULT;
1936                 break;
1937         case SONYPI_IOCGBATFLAGS:
1938                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1939                         ret = -EIO;
1940                         break;
1941                 }
1942                 val8 &= 0x07;
1943                 if (copy_to_user(argp, &val8, sizeof(val8)))
1944                         ret = -EFAULT;
1945                 break;
1946         case SONYPI_IOCGBLUE:
1947                 val8 = spic_dev.bluetooth_power;
1948                 if (copy_to_user(argp, &val8, sizeof(val8)))
1949                         ret = -EFAULT;
1950                 break;
1951         case SONYPI_IOCSBLUE:
1952                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1953                         ret = -EFAULT;
1954                         break;
1955                 }
1956                 __sony_pic_set_bluetoothpower(val8);
1957                 break;
1958         /* FAN Controls */
1959         case SONYPI_IOCGFAN:
1960                 if (sony_pic_get_fanspeed(&val8)) {
1961                         ret = -EIO;
1962                         break;
1963                 }
1964                 if (copy_to_user(argp, &val8, sizeof(val8)))
1965                         ret = -EFAULT;
1966                 break;
1967         case SONYPI_IOCSFAN:
1968                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1969                         ret = -EFAULT;
1970                         break;
1971                 }
1972                 if (sony_pic_set_fanspeed(val8))
1973                         ret = -EIO;
1974                 break;
1975         /* GET Temperature (useful under APM) */
1976         case SONYPI_IOCGTEMP:
1977                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1978                         ret = -EIO;
1979                         break;
1980                 }
1981                 if (copy_to_user(argp, &val8, sizeof(val8)))
1982                         ret = -EFAULT;
1983                 break;
1984         default:
1985                 ret = -EINVAL;
1986         }
1987         mutex_unlock(&spic_dev.lock);
1988         return ret;
1989 }
1990
1991 static const struct file_operations sonypi_misc_fops = {
1992         .owner          = THIS_MODULE,
1993         .read           = sonypi_misc_read,
1994         .poll           = sonypi_misc_poll,
1995         .open           = sonypi_misc_open,
1996         .release        = sonypi_misc_release,
1997         .fasync         = sonypi_misc_fasync,
1998         .ioctl          = sonypi_misc_ioctl,
1999 };
2000
2001 static struct miscdevice sonypi_misc_device = {
2002         .minor          = MISC_DYNAMIC_MINOR,
2003         .name           = "sonypi",
2004         .fops           = &sonypi_misc_fops,
2005 };
2006
2007 static void sonypi_compat_report_event(u8 event)
2008 {
2009         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2010         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2011         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2012 }
2013
2014 static int sonypi_compat_init(void)
2015 {
2016         int error;
2017
2018         spin_lock_init(&sonypi_compat.fifo_lock);
2019         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2020                                          &sonypi_compat.fifo_lock);
2021         if (IS_ERR(sonypi_compat.fifo)) {
2022                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2023                 return PTR_ERR(sonypi_compat.fifo);
2024         }
2025
2026         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2027
2028         if (minor != -1)
2029                 sonypi_misc_device.minor = minor;
2030         error = misc_register(&sonypi_misc_device);
2031         if (error) {
2032                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2033                 goto err_free_kfifo;
2034         }
2035         if (minor == -1)
2036                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2037                        sonypi_misc_device.minor);
2038
2039         return 0;
2040
2041 err_free_kfifo:
2042         kfifo_free(sonypi_compat.fifo);
2043         return error;
2044 }
2045
2046 static void sonypi_compat_exit(void)
2047 {
2048         misc_deregister(&sonypi_misc_device);
2049         kfifo_free(sonypi_compat.fifo);
2050 }
2051 #else
2052 static int sonypi_compat_init(void) { return 0; }
2053 static void sonypi_compat_exit(void) { }
2054 static void sonypi_compat_report_event(u8 event) { }
2055 #endif /* CONFIG_SONYPI_COMPAT */
2056
2057 /*
2058  * ACPI callbacks
2059  */
2060 static acpi_status
2061 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2062 {
2063         u32 i;
2064         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2065
2066         switch (resource->type) {
2067         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2068         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2069                 return AE_OK;
2070
2071         case ACPI_RESOURCE_TYPE_IRQ:
2072                 {
2073                         struct acpi_resource_irq *p = &resource->data.irq;
2074                         struct sony_pic_irq *interrupt = NULL;
2075                         if (!p || !p->interrupt_count) {
2076                                 /*
2077                                  * IRQ descriptors may have no IRQ# bits set,
2078                                  * particularly those those w/ _STA disabled
2079                                  */
2080                                 dprintk("Blank IRQ resource\n");
2081                                 return AE_OK;
2082                         }
2083                         for (i = 0; i < p->interrupt_count; i++) {
2084                                 if (!p->interrupts[i]) {
2085                                         printk(KERN_WARNING DRV_PFX
2086                                                         "Invalid IRQ %d\n",
2087                                                         p->interrupts[i]);
2088                                         continue;
2089                                 }
2090                                 interrupt = kzalloc(sizeof(*interrupt),
2091                                                 GFP_KERNEL);
2092                                 if (!interrupt)
2093                                         return AE_ERROR;
2094
2095                                 list_add_tail(&interrupt->list, &dev->interrupts);
2096                                 interrupt->irq.triggering = p->triggering;
2097                                 interrupt->irq.polarity = p->polarity;
2098                                 interrupt->irq.sharable = p->sharable;
2099                                 interrupt->irq.interrupt_count = 1;
2100                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2101                         }
2102                         return AE_OK;
2103                 }
2104         case ACPI_RESOURCE_TYPE_IO:
2105                 {
2106                         struct acpi_resource_io *io = &resource->data.io;
2107                         struct sony_pic_ioport *ioport = NULL;
2108                         if (!io) {
2109                                 dprintk("Blank IO resource\n");
2110                                 return AE_OK;
2111                         }
2112
2113                         ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2114                         if (!ioport)
2115                                 return AE_ERROR;
2116
2117                         list_add_tail(&ioport->list, &dev->ioports);
2118                         memcpy(&ioport->io, io, sizeof(*io));
2119                         return AE_OK;
2120                 }
2121         default:
2122                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2123                                 resource->type);
2124
2125         case ACPI_RESOURCE_TYPE_END_TAG:
2126                 return AE_OK;
2127         }
2128         return AE_CTRL_TERMINATE;
2129 }
2130
2131 static int sony_pic_possible_resources(struct acpi_device *device)
2132 {
2133         int result = 0;
2134         acpi_status status = AE_OK;
2135
2136         if (!device)
2137                 return -EINVAL;
2138
2139         /* get device status */
2140         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2141         dprintk("Evaluating _STA\n");
2142         result = acpi_bus_get_status(device);
2143         if (result) {
2144                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2145                 goto end;
2146         }
2147
2148         if (!device->status.enabled)
2149                 dprintk("Device disabled\n");
2150         else
2151                 dprintk("Device enabled\n");
2152
2153         /*
2154          * Query and parse 'method'
2155          */
2156         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2157         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2158                         sony_pic_read_possible_resource, &spic_dev);
2159         if (ACPI_FAILURE(status)) {
2160                 printk(KERN_WARNING DRV_PFX
2161                                 "Failure evaluating %s\n",
2162                                 METHOD_NAME__PRS);
2163                 result = -ENODEV;
2164         }
2165 end:
2166         return result;
2167 }
2168
2169 /*
2170  *  Disable the spic device by calling its _DIS method
2171  */
2172 static int sony_pic_disable(struct acpi_device *device)
2173 {
2174         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2175                         "_DIS", NULL, NULL)))
2176                 return -ENXIO;
2177
2178         dprintk("Device disabled\n");
2179         return 0;
2180 }
2181
2182
2183 /*
2184  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2185  *
2186  *  Call _SRS to set current resources
2187  */
2188 static int sony_pic_enable(struct acpi_device *device,
2189                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2190 {
2191         acpi_status status;
2192         int result = 0;
2193         struct {
2194                 struct acpi_resource io_res;
2195                 struct acpi_resource irq_res;
2196                 struct acpi_resource end;
2197         } *resource;
2198         struct acpi_buffer buffer = { 0, NULL };
2199
2200         if (!ioport || !irq)
2201                 return -EINVAL;
2202
2203         /* init acpi_buffer */
2204         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2205         if (!resource)
2206                 return -ENOMEM;
2207
2208         buffer.length = sizeof(*resource) + 1;
2209         buffer.pointer = resource;
2210
2211         /* setup io resource */
2212         resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
2213         resource->io_res.length = sizeof(struct acpi_resource);
2214         memcpy(&resource->io_res.data.io, &ioport->io,
2215                         sizeof(struct acpi_resource_io));
2216
2217         /* setup irq resource */
2218         resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
2219         resource->irq_res.length = sizeof(struct acpi_resource);
2220         memcpy(&resource->irq_res.data.irq, &irq->irq,
2221                         sizeof(struct acpi_resource_irq));
2222         /* we requested a shared irq */
2223         resource->irq_res.data.irq.sharable = ACPI_SHARED;
2224
2225         resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
2226
2227         /* Attempt to set the resource */
2228         dprintk("Evaluating _SRS\n");
2229         status = acpi_set_current_resources(device->handle, &buffer);
2230
2231         /* check for total failure */
2232         if (ACPI_FAILURE(status)) {
2233                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
2234                 result = -ENODEV;
2235                 goto end;
2236         }
2237
2238         /* Necessary device initializations calls (from sonypi) */
2239         sony_pic_call1(0x82);
2240         sony_pic_call2(0x81, 0xff);
2241         sony_pic_call1(compat ? 0x92 : 0x82);
2242
2243 end:
2244         kfree(resource);
2245         return result;
2246 }
2247
2248 /*****************
2249  *
2250  * ISR: some event is available
2251  *
2252  *****************/
2253 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2254 {
2255         int i, j;
2256         u8 ev = 0;
2257         u8 data_mask = 0;
2258         u8 device_event = 0;
2259
2260         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2261
2262         ev = inb_p(dev->cur_ioport->io.minimum);
2263         data_mask = inb_p(dev->cur_ioport->io.minimum + dev->evport_offset);
2264
2265         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2266                         ev, data_mask, dev->cur_ioport->io.minimum, dev->evport_offset);
2267
2268         if (ev == 0x00 || ev == 0xff)
2269                 return IRQ_HANDLED;
2270
2271         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2272
2273                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2274                         continue;
2275
2276                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2277                     sony_pic_eventtypes[i].data)
2278                         continue;
2279
2280                 if (!(mask & sony_pic_eventtypes[i].mask))
2281                         continue;
2282
2283                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2284                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2285                                 device_event =
2286                                         sony_pic_eventtypes[i].events[j].event;
2287                                 goto found;
2288                         }
2289                 }
2290         }
2291         return IRQ_HANDLED;
2292
2293 found:
2294         sony_laptop_report_input_event(device_event);
2295         acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
2296         sonypi_compat_report_event(device_event);
2297
2298         return IRQ_HANDLED;
2299 }
2300
2301 /*****************
2302  *
2303  *  ACPI driver
2304  *
2305  *****************/
2306 static int sony_pic_remove(struct acpi_device *device, int type)
2307 {
2308         struct sony_pic_ioport *io, *tmp_io;
2309         struct sony_pic_irq *irq, *tmp_irq;
2310
2311         sonypi_compat_exit();
2312
2313         if (sony_pic_disable(device)) {
2314                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2315                 return -ENXIO;
2316         }
2317
2318         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2319         release_region(spic_dev.cur_ioport->io.minimum,
2320                         spic_dev.cur_ioport->io.address_length);
2321
2322         sony_laptop_remove_input();
2323
2324         /* pf attrs */
2325         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2326         sony_pf_remove();
2327
2328         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2329                 list_del(&io->list);
2330                 kfree(io);
2331         }
2332         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2333                 list_del(&irq->list);
2334                 kfree(irq);
2335         }
2336         spic_dev.cur_ioport = NULL;
2337         spic_dev.cur_irq = NULL;
2338
2339         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2340         return 0;
2341 }
2342
2343 static int sony_pic_add(struct acpi_device *device)
2344 {
2345         int result;
2346         struct sony_pic_ioport *io, *tmp_io;
2347         struct sony_pic_irq *irq, *tmp_irq;
2348
2349         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2350                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2351
2352         spic_dev.acpi_dev = device;
2353         strcpy(acpi_device_class(device), "sony/hotkey");
2354         spic_dev.model = sony_pic_detect_device_type();
2355         mutex_init(&spic_dev.lock);
2356
2357         /* model specific characteristics */
2358         switch(spic_dev.model) {
2359                 case SONYPI_DEVICE_TYPE1:
2360                         spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
2361                         break;
2362                 case SONYPI_DEVICE_TYPE3:
2363                         spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
2364                         break;
2365                 case SONYPI_DEVICE_TYPE2:
2366                 default:
2367                         spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
2368                         break;
2369         }
2370
2371         /* read _PRS resources */
2372         result = sony_pic_possible_resources(device);
2373         if (result) {
2374                 printk(KERN_ERR DRV_PFX
2375                                 "Unabe to read possible resources.\n");
2376                 goto err_free_resources;
2377         }
2378
2379         /* setup input devices and helper fifo */
2380         result = sony_laptop_setup_input();
2381         if (result) {
2382                 printk(KERN_ERR DRV_PFX
2383                                 "Unabe to create input devices.\n");
2384                 goto err_free_resources;
2385         }
2386
2387         /* request io port */
2388         list_for_each_entry(io, &spic_dev.ioports, list) {
2389                 if (request_region(io->io.minimum, io->io.address_length,
2390                                         "Sony Programable I/O Device")) {
2391                         dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
2392                                         io->io.minimum, io->io.maximum,
2393                                         io->io.address_length);
2394                         spic_dev.cur_ioport = io;
2395                         break;
2396                 }
2397         }
2398         if (!spic_dev.cur_ioport) {
2399                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2400                 result = -ENODEV;
2401                 goto err_remove_input;
2402         }
2403
2404         /* request IRQ */
2405         list_for_each_entry(irq, &spic_dev.interrupts, list) {
2406                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2407                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2408                         dprintk("IRQ: %d - triggering: %d - "
2409                                         "polarity: %d - shr: %d\n",
2410                                         irq->irq.interrupts[0],
2411                                         irq->irq.triggering,
2412                                         irq->irq.polarity,
2413                                         irq->irq.sharable);
2414                         spic_dev.cur_irq = irq;
2415                         break;
2416                 }
2417         }
2418         if (!spic_dev.cur_irq) {
2419                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2420                 result = -ENODEV;
2421                 goto err_release_region;
2422         }
2423
2424         /* set resource status _SRS */
2425         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2426         if (result) {
2427                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2428                 goto err_free_irq;
2429         }
2430
2431         spic_dev.bluetooth_power = -1;
2432         /* create device attributes */
2433         result = sony_pf_add();
2434         if (result)
2435                 goto err_disable_device;
2436
2437         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2438         if (result)
2439                 goto err_remove_pf;
2440
2441         if (sonypi_compat_init())
2442                 goto err_remove_pf;
2443
2444         return 0;
2445
2446 err_remove_pf:
2447         sony_pf_remove();
2448
2449 err_disable_device:
2450         sony_pic_disable(device);
2451
2452 err_free_irq:
2453         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2454
2455 err_release_region:
2456         release_region(spic_dev.cur_ioport->io.minimum,
2457                         spic_dev.cur_ioport->io.address_length);
2458
2459 err_remove_input:
2460         sony_laptop_remove_input();
2461
2462 err_free_resources:
2463         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2464                 list_del(&io->list);
2465                 kfree(io);
2466         }
2467         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2468                 list_del(&irq->list);
2469                 kfree(irq);
2470         }
2471         spic_dev.cur_ioport = NULL;
2472         spic_dev.cur_irq = NULL;
2473
2474         return result;
2475 }
2476
2477 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2478 {
2479         if (sony_pic_disable(device))
2480                 return -ENXIO;
2481         return 0;
2482 }
2483
2484 static int sony_pic_resume(struct acpi_device *device)
2485 {
2486         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2487         return 0;
2488 }
2489
2490 static const struct acpi_device_id sony_pic_device_ids[] = {
2491         {SONY_PIC_HID, 0},
2492         {"", 0},
2493 };
2494
2495 static struct acpi_driver sony_pic_driver = {
2496         .name = SONY_PIC_DRIVER_NAME,
2497         .class = SONY_PIC_CLASS,
2498         .ids = sony_pic_device_ids,
2499         .owner = THIS_MODULE,
2500         .ops = {
2501                 .add = sony_pic_add,
2502                 .remove = sony_pic_remove,
2503                 .suspend = sony_pic_suspend,
2504                 .resume = sony_pic_resume,
2505                 },
2506 };
2507
2508 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2509         {
2510                 .ident = "Sony Vaio",
2511                 .matches = {
2512                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2513                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2514                 },
2515         },
2516         {
2517                 .ident = "Sony Vaio",
2518                 .matches = {
2519                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2520                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2521                 },
2522         },
2523         { }
2524 };
2525
2526 static int __init sony_laptop_init(void)
2527 {
2528         int result;
2529
2530         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2531                 result = acpi_bus_register_driver(&sony_pic_driver);
2532                 if (result) {
2533                         printk(KERN_ERR DRV_PFX
2534                                         "Unable to register SPIC driver.");
2535                         goto out;
2536                 }
2537         }
2538
2539         result = acpi_bus_register_driver(&sony_nc_driver);
2540         if (result) {
2541                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2542                 goto out_unregister_pic;
2543         }
2544
2545         return 0;
2546
2547 out_unregister_pic:
2548         if (!no_spic)
2549                 acpi_bus_unregister_driver(&sony_pic_driver);
2550 out:
2551         return result;
2552 }
2553
2554 static void __exit sony_laptop_exit(void)
2555 {
2556         acpi_bus_unregister_driver(&sony_nc_driver);
2557         if (!no_spic)
2558                 acpi_bus_unregister_driver(&sony_pic_driver);
2559 }
2560
2561 module_init(sony_laptop_init);
2562 module_exit(sony_laptop_exit);