Rationalize fasync return values
[linux-2.6.git] / drivers / platform / x86 / sony-laptop.c
1 /*
2  * ACPI Sony Notebook Control Driver (SNC and SPIC)
3  *
4  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
5  * Copyright (C) 2007 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/smp_lock.h>
50 #include <linux/types.h>
51 #include <linux/backlight.h>
52 #include <linux/platform_device.h>
53 #include <linux/err.h>
54 #include <linux/dmi.h>
55 #include <linux/pci.h>
56 #include <linux/interrupt.h>
57 #include <linux/delay.h>
58 #include <linux/input.h>
59 #include <linux/kfifo.h>
60 #include <linux/workqueue.h>
61 #include <linux/acpi.h>
62 #include <acpi/acpi_drivers.h>
63 #include <acpi/acpi_bus.h>
64 #include <asm/uaccess.h>
65 #include <linux/sonypi.h>
66 #include <linux/sony-laptop.h>
67 #ifdef CONFIG_SONYPI_COMPAT
68 #include <linux/poll.h>
69 #include <linux/miscdevice.h>
70 #endif
71
72 #define DRV_PFX                 "sony-laptop: "
73 #define dprintk(msg...)         do {                    \
74         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
75 } while (0)
76
77 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
78
79 #define SONY_NC_CLASS           "sony-nc"
80 #define SONY_NC_HID             "SNY5001"
81 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
82
83 #define SONY_PIC_CLASS          "sony-pic"
84 #define SONY_PIC_HID            "SNY6001"
85 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
86
87 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
88 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
89 MODULE_LICENSE("GPL");
90 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
91
92 static int debug;
93 module_param(debug, int, 0);
94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
95                  "the development of this driver");
96
97 static int no_spic;             /* = 0 */
98 module_param(no_spic, int, 0444);
99 MODULE_PARM_DESC(no_spic,
100                  "set this if you don't want to enable the SPIC device");
101
102 static int compat;              /* = 0 */
103 module_param(compat, int, 0444);
104 MODULE_PARM_DESC(compat,
105                  "set this if you want to enable backward compatibility mode");
106
107 static unsigned long mask = 0xffffffff;
108 module_param(mask, ulong, 0644);
109 MODULE_PARM_DESC(mask,
110                  "set this to the mask of event you want to enable (see doc)");
111
112 static int camera;              /* = 0 */
113 module_param(camera, int, 0444);
114 MODULE_PARM_DESC(camera,
115                  "set this to 1 to enable Motion Eye camera controls "
116                  "(only use it if you have a C1VE or C1VN model)");
117
118 #ifdef CONFIG_SONYPI_COMPAT
119 static int minor = -1;
120 module_param(minor, int, 0);
121 MODULE_PARM_DESC(minor,
122                  "minor number of the misc device for the SPIC compatibility code, "
123                  "default is -1 (automatic)");
124 #endif
125
126 /*********** Input Devices ***********/
127
128 #define SONY_LAPTOP_BUF_SIZE    128
129 struct sony_laptop_input_s {
130         atomic_t                users;
131         struct input_dev        *jog_dev;
132         struct input_dev        *key_dev;
133         struct kfifo            *fifo;
134         spinlock_t              fifo_lock;
135         struct workqueue_struct *wq;
136 };
137 static struct sony_laptop_input_s sony_laptop_input = {
138         .users = ATOMIC_INIT(0),
139 };
140
141 struct sony_laptop_keypress {
142         struct input_dev *dev;
143         int key;
144 };
145
146 /* Correspondance table between sonypi events
147  * and input layer indexes in the keymap
148  */
149 static int sony_laptop_input_index[] = {
150         -1,     /*  0 no event */
151         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
152         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
153         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
154         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
155         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
156         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
157          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
158          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
159          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
160          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
161          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
162          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
163          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
164          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
165          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
166          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
167         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
168         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
169         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
170         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
171         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
172         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
173         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
174         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
175         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
176         19,     /* 26 SONYPI_EVENT_FNKEY_D */
177         20,     /* 27 SONYPI_EVENT_FNKEY_E */
178         21,     /* 28 SONYPI_EVENT_FNKEY_F */
179         22,     /* 29 SONYPI_EVENT_FNKEY_S */
180         23,     /* 30 SONYPI_EVENT_FNKEY_B */
181         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
182         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
183         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
184         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
185         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
186         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
187         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
188         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
189         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
190         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
191         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
192         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
193         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
194         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
195         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
196         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
197         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
198         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
199         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
200         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
201         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
202         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
203         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
204         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
205         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
206         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
207         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
208         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
209         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
210         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
211         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
212         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
213         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
214 };
215
216 static int sony_laptop_input_keycode_map[] = {
217         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
218         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
219         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
220         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
221         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
222         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
223         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
224         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
225         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
226         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
227         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
228         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
229         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
230         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
231         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
232         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
233         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
234         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
235         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
236         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
237         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
238         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
239         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
240         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
241         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
242         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
243         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
244         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
245         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
246         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
247         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
248         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
249         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
250         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
251         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
252         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
253         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
254         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
255         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
256         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
257         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
258         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
259         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
260         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
261         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
262         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
263         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
264         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
265         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
266         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
267         KEY_ZOOMOUT     /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
268 };
269
270 /* release buttons after a short delay if pressed */
271 static void do_sony_laptop_release_key(struct work_struct *work)
272 {
273         struct sony_laptop_keypress kp;
274
275         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
276                          sizeof(kp)) == sizeof(kp)) {
277                 msleep(10);
278                 input_report_key(kp.dev, kp.key, 0);
279                 input_sync(kp.dev);
280         }
281 }
282 static DECLARE_WORK(sony_laptop_release_key_work,
283                 do_sony_laptop_release_key);
284
285 /* forward event to the input subsystem */
286 static void sony_laptop_report_input_event(u8 event)
287 {
288         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
289         struct input_dev *key_dev = sony_laptop_input.key_dev;
290         struct sony_laptop_keypress kp = { NULL };
291
292         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
293                 /* Nothing, not all VAIOs generate this event */
294                 return;
295         }
296
297         /* report events */
298         switch (event) {
299         /* jog_dev events */
300         case SONYPI_EVENT_JOGDIAL_UP:
301         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
302                 input_report_rel(jog_dev, REL_WHEEL, 1);
303                 input_sync(jog_dev);
304                 return;
305
306         case SONYPI_EVENT_JOGDIAL_DOWN:
307         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
308                 input_report_rel(jog_dev, REL_WHEEL, -1);
309                 input_sync(jog_dev);
310                 return;
311
312         /* key_dev events */
313         case SONYPI_EVENT_JOGDIAL_PRESSED:
314                 kp.key = BTN_MIDDLE;
315                 kp.dev = jog_dev;
316                 break;
317
318         default:
319                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
320                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
321                         break;
322                 }
323                 if (sony_laptop_input_index[event] != -1) {
324                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
325                         if (kp.key != KEY_UNKNOWN)
326                                 kp.dev = key_dev;
327                 }
328                 break;
329         }
330
331         if (kp.dev) {
332                 input_report_key(kp.dev, kp.key, 1);
333                 /* we emit the scancode so we can always remap the key */
334                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
335                 input_sync(kp.dev);
336                 kfifo_put(sony_laptop_input.fifo,
337                           (unsigned char *)&kp, sizeof(kp));
338
339                 if (!work_pending(&sony_laptop_release_key_work))
340                         queue_work(sony_laptop_input.wq,
341                                         &sony_laptop_release_key_work);
342         } else
343                 dprintk("unknown input event %.2x\n", event);
344 }
345
346 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
347 {
348         struct input_dev *jog_dev;
349         struct input_dev *key_dev;
350         int i;
351         int error;
352
353         /* don't run again if already initialized */
354         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
355                 return 0;
356
357         /* kfifo */
358         spin_lock_init(&sony_laptop_input.fifo_lock);
359         sony_laptop_input.fifo =
360                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
361                             &sony_laptop_input.fifo_lock);
362         if (IS_ERR(sony_laptop_input.fifo)) {
363                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
364                 error = PTR_ERR(sony_laptop_input.fifo);
365                 goto err_dec_users;
366         }
367
368         /* init workqueue */
369         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
370         if (!sony_laptop_input.wq) {
371                 printk(KERN_ERR DRV_PFX
372                                 "Unabe to create workqueue.\n");
373                 error = -ENXIO;
374                 goto err_free_kfifo;
375         }
376
377         /* input keys */
378         key_dev = input_allocate_device();
379         if (!key_dev) {
380                 error = -ENOMEM;
381                 goto err_destroy_wq;
382         }
383
384         key_dev->name = "Sony Vaio Keys";
385         key_dev->id.bustype = BUS_ISA;
386         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
387         key_dev->dev.parent = &acpi_device->dev;
388
389         /* Initialize the Input Drivers: special keys */
390         set_bit(EV_KEY, key_dev->evbit);
391         set_bit(EV_MSC, key_dev->evbit);
392         set_bit(MSC_SCAN, key_dev->mscbit);
393         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
394         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
395         key_dev->keycode = &sony_laptop_input_keycode_map;
396         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
397                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
398                         set_bit(sony_laptop_input_keycode_map[i],
399                                 key_dev->keybit);
400                 }
401         }
402
403         error = input_register_device(key_dev);
404         if (error)
405                 goto err_free_keydev;
406
407         sony_laptop_input.key_dev = key_dev;
408
409         /* jogdial */
410         jog_dev = input_allocate_device();
411         if (!jog_dev) {
412                 error = -ENOMEM;
413                 goto err_unregister_keydev;
414         }
415
416         jog_dev->name = "Sony Vaio Jogdial";
417         jog_dev->id.bustype = BUS_ISA;
418         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
419         key_dev->dev.parent = &acpi_device->dev;
420
421         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
422         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
423         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
424
425         error = input_register_device(jog_dev);
426         if (error)
427                 goto err_free_jogdev;
428
429         sony_laptop_input.jog_dev = jog_dev;
430
431         return 0;
432
433 err_free_jogdev:
434         input_free_device(jog_dev);
435
436 err_unregister_keydev:
437         input_unregister_device(key_dev);
438         /* to avoid kref underflow below at input_free_device */
439         key_dev = NULL;
440
441 err_free_keydev:
442         input_free_device(key_dev);
443
444 err_destroy_wq:
445         destroy_workqueue(sony_laptop_input.wq);
446
447 err_free_kfifo:
448         kfifo_free(sony_laptop_input.fifo);
449
450 err_dec_users:
451         atomic_dec(&sony_laptop_input.users);
452         return error;
453 }
454
455 static void sony_laptop_remove_input(void)
456 {
457         /* cleanup only after the last user has gone */
458         if (!atomic_dec_and_test(&sony_laptop_input.users))
459                 return;
460
461         /* flush workqueue first */
462         flush_workqueue(sony_laptop_input.wq);
463
464         /* destroy input devs */
465         input_unregister_device(sony_laptop_input.key_dev);
466         sony_laptop_input.key_dev = NULL;
467
468         if (sony_laptop_input.jog_dev) {
469                 input_unregister_device(sony_laptop_input.jog_dev);
470                 sony_laptop_input.jog_dev = NULL;
471         }
472
473         destroy_workqueue(sony_laptop_input.wq);
474         kfifo_free(sony_laptop_input.fifo);
475 }
476
477 /*********** Platform Device ***********/
478
479 static atomic_t sony_pf_users = ATOMIC_INIT(0);
480 static struct platform_driver sony_pf_driver = {
481         .driver = {
482                    .name = "sony-laptop",
483                    .owner = THIS_MODULE,
484                    }
485 };
486 static struct platform_device *sony_pf_device;
487
488 static int sony_pf_add(void)
489 {
490         int ret = 0;
491
492         /* don't run again if already initialized */
493         if (atomic_add_return(1, &sony_pf_users) > 1)
494                 return 0;
495
496         ret = platform_driver_register(&sony_pf_driver);
497         if (ret)
498                 goto out;
499
500         sony_pf_device = platform_device_alloc("sony-laptop", -1);
501         if (!sony_pf_device) {
502                 ret = -ENOMEM;
503                 goto out_platform_registered;
504         }
505
506         ret = platform_device_add(sony_pf_device);
507         if (ret)
508                 goto out_platform_alloced;
509
510         return 0;
511
512       out_platform_alloced:
513         platform_device_put(sony_pf_device);
514         sony_pf_device = NULL;
515       out_platform_registered:
516         platform_driver_unregister(&sony_pf_driver);
517       out:
518         atomic_dec(&sony_pf_users);
519         return ret;
520 }
521
522 static void sony_pf_remove(void)
523 {
524         /* deregister only after the last user has gone */
525         if (!atomic_dec_and_test(&sony_pf_users))
526                 return;
527
528         platform_device_del(sony_pf_device);
529         platform_device_put(sony_pf_device);
530         platform_driver_unregister(&sony_pf_driver);
531 }
532
533 /*********** SNC (SNY5001) Device ***********/
534
535 /* the device uses 1-based values, while the backlight subsystem uses
536    0-based values */
537 #define SONY_MAX_BRIGHTNESS     8
538
539 #define SNC_VALIDATE_IN         0
540 #define SNC_VALIDATE_OUT        1
541
542 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
543                               char *);
544 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
545                                const char *, size_t);
546 static int boolean_validate(const int, const int);
547 static int brightness_default_validate(const int, const int);
548
549 struct sony_nc_value {
550         char *name;             /* name of the entry */
551         char **acpiget;         /* names of the ACPI get function */
552         char **acpiset;         /* names of the ACPI set function */
553         int (*validate)(const int, const int);  /* input/output validation */
554         int value;              /* current setting */
555         int valid;              /* Has ever been set */
556         int debug;              /* active only in debug mode ? */
557         struct device_attribute devattr;        /* sysfs atribute */
558 };
559
560 #define SNC_HANDLE_NAMES(_name, _values...) \
561         static char *snc_##_name[] = { _values, NULL }
562
563 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
564         { \
565                 .name           = __stringify(_name), \
566                 .acpiget        = _getters, \
567                 .acpiset        = _setters, \
568                 .validate       = _validate, \
569                 .debug          = _debug, \
570                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
571         }
572
573 #define SNC_HANDLE_NULL { .name = NULL }
574
575 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
576
577 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
578 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
579
580 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
581 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
582
583 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
584 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
585
586 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
587 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
588
589 SNC_HANDLE_NAMES(lidstate_get, "GLID");
590
591 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
592 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
593
594 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
595 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
596
597 SNC_HANDLE_NAMES(PID_get, "GPID");
598
599 SNC_HANDLE_NAMES(CTR_get, "GCTR");
600 SNC_HANDLE_NAMES(CTR_set, "SCTR");
601
602 SNC_HANDLE_NAMES(PCR_get, "GPCR");
603 SNC_HANDLE_NAMES(PCR_set, "SPCR");
604
605 SNC_HANDLE_NAMES(CMI_get, "GCMI");
606 SNC_HANDLE_NAMES(CMI_set, "SCMI");
607
608 static struct sony_nc_value sony_nc_values[] = {
609         SNC_HANDLE(brightness_default, snc_brightness_def_get,
610                         snc_brightness_def_set, brightness_default_validate, 0),
611         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
612         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
613         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
614                         boolean_validate, 0),
615         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
616                         boolean_validate, 1),
617         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
618                         boolean_validate, 0),
619         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
620                         boolean_validate, 0),
621         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
622                         boolean_validate, 0),
623         /* unknown methods */
624         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
625         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
626         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
627         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
628         SNC_HANDLE_NULL
629 };
630
631 static acpi_handle sony_nc_acpi_handle;
632 static struct acpi_device *sony_nc_acpi_device = NULL;
633
634 /*
635  * acpi_evaluate_object wrappers
636  */
637 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
638 {
639         struct acpi_buffer output;
640         union acpi_object out_obj;
641         acpi_status status;
642
643         output.length = sizeof(out_obj);
644         output.pointer = &out_obj;
645
646         status = acpi_evaluate_object(handle, name, NULL, &output);
647         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
648                 *result = out_obj.integer.value;
649                 return 0;
650         }
651
652         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
653
654         return -1;
655 }
656
657 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
658                             int *result)
659 {
660         struct acpi_object_list params;
661         union acpi_object in_obj;
662         struct acpi_buffer output;
663         union acpi_object out_obj;
664         acpi_status status;
665
666         params.count = 1;
667         params.pointer = &in_obj;
668         in_obj.type = ACPI_TYPE_INTEGER;
669         in_obj.integer.value = value;
670
671         output.length = sizeof(out_obj);
672         output.pointer = &out_obj;
673
674         status = acpi_evaluate_object(handle, name, &params, &output);
675         if (status == AE_OK) {
676                 if (result != NULL) {
677                         if (out_obj.type != ACPI_TYPE_INTEGER) {
678                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
679                                        "return type\n");
680                                 return -1;
681                         }
682                         *result = out_obj.integer.value;
683                 }
684                 return 0;
685         }
686
687         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
688
689         return -1;
690 }
691
692 /*
693  * sony_nc_values input/output validate functions
694  */
695
696 /* brightness_default_validate:
697  *
698  * manipulate input output values to keep consistency with the
699  * backlight framework for which brightness values are 0-based.
700  */
701 static int brightness_default_validate(const int direction, const int value)
702 {
703         switch (direction) {
704                 case SNC_VALIDATE_OUT:
705                         return value - 1;
706                 case SNC_VALIDATE_IN:
707                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
708                                 return value + 1;
709         }
710         return -EINVAL;
711 }
712
713 /* boolean_validate:
714  *
715  * on input validate boolean values 0/1, on output just pass the
716  * received value.
717  */
718 static int boolean_validate(const int direction, const int value)
719 {
720         if (direction == SNC_VALIDATE_IN) {
721                 if (value != 0 && value != 1)
722                         return -EINVAL;
723         }
724         return value;
725 }
726
727 /*
728  * Sysfs show/store common to all sony_nc_values
729  */
730 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
731                               char *buffer)
732 {
733         int value;
734         struct sony_nc_value *item =
735             container_of(attr, struct sony_nc_value, devattr);
736
737         if (!*item->acpiget)
738                 return -EIO;
739
740         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
741                 return -EIO;
742
743         if (item->validate)
744                 value = item->validate(SNC_VALIDATE_OUT, value);
745
746         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
747 }
748
749 static ssize_t sony_nc_sysfs_store(struct device *dev,
750                                struct device_attribute *attr,
751                                const char *buffer, size_t count)
752 {
753         int value;
754         struct sony_nc_value *item =
755             container_of(attr, struct sony_nc_value, devattr);
756
757         if (!item->acpiset)
758                 return -EIO;
759
760         if (count > 31)
761                 return -EINVAL;
762
763         value = simple_strtoul(buffer, NULL, 10);
764
765         if (item->validate)
766                 value = item->validate(SNC_VALIDATE_IN, value);
767
768         if (value < 0)
769                 return value;
770
771         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
772                 return -EIO;
773         item->value = value;
774         item->valid = 1;
775         return count;
776 }
777
778
779 /*
780  * Backlight device
781  */
782 static int sony_backlight_update_status(struct backlight_device *bd)
783 {
784         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
785                                 bd->props.brightness + 1, NULL);
786 }
787
788 static int sony_backlight_get_brightness(struct backlight_device *bd)
789 {
790         int value;
791
792         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
793                 return 0;
794         /* brightness levels are 1-based, while backlight ones are 0-based */
795         return value - 1;
796 }
797
798 static struct backlight_device *sony_backlight_device;
799 static struct backlight_ops sony_backlight_ops = {
800         .update_status = sony_backlight_update_status,
801         .get_brightness = sony_backlight_get_brightness,
802 };
803
804 /*
805  * New SNC-only Vaios event mapping to driver known keys
806  */
807 struct sony_nc_event {
808         u8      data;
809         u8      event;
810 };
811
812 static struct sony_nc_event *sony_nc_events;
813
814 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
815  * for Fn keys
816  */
817 static int sony_nc_C_enable(const struct dmi_system_id *id)
818 {
819         int result = 0;
820
821         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
822
823         sony_nc_events = id->driver_data;
824
825         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
826                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
827                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
828                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
829                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
830                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
831                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
832                                 "functionalities may be missing\n");
833                 return 1;
834         }
835         return 0;
836 }
837
838 static struct sony_nc_event sony_C_events[] = {
839         { 0x81, SONYPI_EVENT_FNKEY_F1 },
840         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
841         { 0x85, SONYPI_EVENT_FNKEY_F5 },
842         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
843         { 0x86, SONYPI_EVENT_FNKEY_F6 },
844         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
845         { 0x87, SONYPI_EVENT_FNKEY_F7 },
846         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
847         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
848         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
849         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
850         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
851         { 0, 0 },
852 };
853
854 /* SNC-only model map */
855 static const struct dmi_system_id sony_nc_ids[] = {
856                 {
857                         .ident = "Sony Vaio FE Series",
858                         .callback = sony_nc_C_enable,
859                         .driver_data = sony_C_events,
860                         .matches = {
861                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
862                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
863                         },
864                 },
865                 {
866                         .ident = "Sony Vaio FZ Series",
867                         .callback = sony_nc_C_enable,
868                         .driver_data = sony_C_events,
869                         .matches = {
870                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
871                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
872                         },
873                 },
874                 {
875                         .ident = "Sony Vaio C Series",
876                         .callback = sony_nc_C_enable,
877                         .driver_data = sony_C_events,
878                         .matches = {
879                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
880                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
881                         },
882                 },
883                 {
884                         .ident = "Sony Vaio N Series",
885                         .callback = sony_nc_C_enable,
886                         .driver_data = sony_C_events,
887                         .matches = {
888                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
889                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
890                         },
891                 },
892                 { }
893 };
894
895 /*
896  * ACPI callbacks
897  */
898 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
899 {
900         struct sony_nc_event *evmap;
901         u32 ev = event;
902         int result;
903
904         if (ev == 0x92) {
905                 /* read the key pressed from EC.GECR
906                  * A call to SN07 with 0x0202 will do it as well respecting
907                  * the current protocol on different OSes
908                  *
909                  * Note: the path for GECR may be
910                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
911                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
912                  *
913                  * TODO: we may want to do the same for the older GHKE -need
914                  *       dmi list- so this snippet may become one more callback.
915                  */
916                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
917                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
918                 else
919                         ev = result & 0xFF;
920         }
921
922         if (sony_nc_events)
923                 for (evmap = sony_nc_events; evmap->event; evmap++) {
924                         if (evmap->data == ev) {
925                                 ev = evmap->event;
926                                 break;
927                         }
928                 }
929
930         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
931         sony_laptop_report_input_event(ev);
932         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
933 }
934
935 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
936                                       void *context, void **return_value)
937 {
938         struct acpi_device_info *info;
939         struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
940
941         if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) {
942                 info = buffer.pointer;
943
944                 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
945                         (char *)&info->name, info->param_count);
946
947                 kfree(buffer.pointer);
948         }
949
950         return AE_OK;
951 }
952
953 /*
954  * ACPI device
955  */
956 static int sony_nc_resume(struct acpi_device *device)
957 {
958         struct sony_nc_value *item;
959
960         for (item = sony_nc_values; item->name; item++) {
961                 int ret;
962
963                 if (!item->valid)
964                         continue;
965                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
966                                        item->value, NULL);
967                 if (ret < 0) {
968                         printk("%s: %d\n", __func__, ret);
969                         break;
970                 }
971         }
972
973         /* set the last requested brightness level */
974         if (sony_backlight_device &&
975                         !sony_backlight_update_status(sony_backlight_device))
976                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
977
978         /* re-initialize models with specific requirements */
979         dmi_check_system(sony_nc_ids);
980
981         return 0;
982 }
983
984 static int sony_nc_add(struct acpi_device *device)
985 {
986         acpi_status status;
987         int result = 0;
988         acpi_handle handle;
989         struct sony_nc_value *item;
990
991         printk(KERN_INFO DRV_PFX "%s v%s.\n",
992                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
993
994         sony_nc_acpi_device = device;
995         strcpy(acpi_device_class(device), "sony/hotkey");
996
997         sony_nc_acpi_handle = device->handle;
998
999         /* read device status */
1000         result = acpi_bus_get_status(device);
1001         /* bail IFF the above call was successful and the device is not present */
1002         if (!result && !device->status.present) {
1003                 dprintk("Device not present\n");
1004                 result = -ENODEV;
1005                 goto outwalk;
1006         }
1007
1008         if (debug) {
1009                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1010                                              1, sony_walk_callback, NULL, NULL);
1011                 if (ACPI_FAILURE(status)) {
1012                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1013                         result = -ENODEV;
1014                         goto outwalk;
1015                 }
1016         }
1017
1018         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1019          * should be respected as we already checked for the device presence above */
1020         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1021                 dprintk("Invoking _INI\n");
1022                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1023                                                 NULL, NULL)))
1024                         dprintk("_INI Method failed\n");
1025         }
1026
1027         /* setup input devices and helper fifo */
1028         result = sony_laptop_setup_input(device);
1029         if (result) {
1030                 printk(KERN_ERR DRV_PFX
1031                                 "Unabe to create input devices.\n");
1032                 goto outwalk;
1033         }
1034
1035         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1036                                              ACPI_DEVICE_NOTIFY,
1037                                              sony_acpi_notify, NULL);
1038         if (ACPI_FAILURE(status)) {
1039                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1040                 result = -ENODEV;
1041                 goto outinput;
1042         }
1043
1044         if (acpi_video_backlight_support()) {
1045                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1046                        "controlled by ACPI video driver\n");
1047         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1048                                                 &handle))) {
1049                 sony_backlight_device = backlight_device_register("sony", NULL,
1050                                                                   NULL,
1051                                                                   &sony_backlight_ops);
1052
1053                 if (IS_ERR(sony_backlight_device)) {
1054                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1055                         sony_backlight_device = NULL;
1056                 } else {
1057                         sony_backlight_device->props.brightness =
1058                             sony_backlight_get_brightness
1059                             (sony_backlight_device);
1060                         sony_backlight_device->props.max_brightness =
1061                             SONY_MAX_BRIGHTNESS - 1;
1062                 }
1063
1064         }
1065
1066         /* initialize models with specific requirements */
1067         dmi_check_system(sony_nc_ids);
1068
1069         result = sony_pf_add();
1070         if (result)
1071                 goto outbacklight;
1072
1073         /* create sony_pf sysfs attributes related to the SNC device */
1074         for (item = sony_nc_values; item->name; ++item) {
1075
1076                 if (!debug && item->debug)
1077                         continue;
1078
1079                 /* find the available acpiget as described in the DSDT */
1080                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1081                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1082                                                          *item->acpiget,
1083                                                          &handle))) {
1084                                 dprintk("Found %s getter: %s\n",
1085                                                 item->name, *item->acpiget);
1086                                 item->devattr.attr.mode |= S_IRUGO;
1087                                 break;
1088                         }
1089                 }
1090
1091                 /* find the available acpiset as described in the DSDT */
1092                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1093                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1094                                                          *item->acpiset,
1095                                                          &handle))) {
1096                                 dprintk("Found %s setter: %s\n",
1097                                                 item->name, *item->acpiset);
1098                                 item->devattr.attr.mode |= S_IWUSR;
1099                                 break;
1100                         }
1101                 }
1102
1103                 if (item->devattr.attr.mode != 0) {
1104                         result =
1105                             device_create_file(&sony_pf_device->dev,
1106                                                &item->devattr);
1107                         if (result)
1108                                 goto out_sysfs;
1109                 }
1110         }
1111
1112         return 0;
1113
1114       out_sysfs:
1115         for (item = sony_nc_values; item->name; ++item) {
1116                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1117         }
1118         sony_pf_remove();
1119
1120       outbacklight:
1121         if (sony_backlight_device)
1122                 backlight_device_unregister(sony_backlight_device);
1123
1124         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1125                                             ACPI_DEVICE_NOTIFY,
1126                                             sony_acpi_notify);
1127         if (ACPI_FAILURE(status))
1128                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1129
1130       outinput:
1131         sony_laptop_remove_input();
1132
1133       outwalk:
1134         return result;
1135 }
1136
1137 static int sony_nc_remove(struct acpi_device *device, int type)
1138 {
1139         acpi_status status;
1140         struct sony_nc_value *item;
1141
1142         if (sony_backlight_device)
1143                 backlight_device_unregister(sony_backlight_device);
1144
1145         sony_nc_acpi_device = NULL;
1146
1147         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1148                                             ACPI_DEVICE_NOTIFY,
1149                                             sony_acpi_notify);
1150         if (ACPI_FAILURE(status))
1151                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1152
1153         for (item = sony_nc_values; item->name; ++item) {
1154                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1155         }
1156
1157         sony_pf_remove();
1158         sony_laptop_remove_input();
1159         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1160
1161         return 0;
1162 }
1163
1164 static const struct acpi_device_id sony_device_ids[] = {
1165         {SONY_NC_HID, 0},
1166         {SONY_PIC_HID, 0},
1167         {"", 0},
1168 };
1169 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1170
1171 static const struct acpi_device_id sony_nc_device_ids[] = {
1172         {SONY_NC_HID, 0},
1173         {"", 0},
1174 };
1175
1176 static struct acpi_driver sony_nc_driver = {
1177         .name = SONY_NC_DRIVER_NAME,
1178         .class = SONY_NC_CLASS,
1179         .ids = sony_nc_device_ids,
1180         .owner = THIS_MODULE,
1181         .ops = {
1182                 .add = sony_nc_add,
1183                 .remove = sony_nc_remove,
1184                 .resume = sony_nc_resume,
1185                 },
1186 };
1187
1188 /*********** SPIC (SNY6001) Device ***********/
1189
1190 #define SONYPI_DEVICE_TYPE1     0x00000001
1191 #define SONYPI_DEVICE_TYPE2     0x00000002
1192 #define SONYPI_DEVICE_TYPE3     0x00000004
1193 #define SONYPI_DEVICE_TYPE4     0x00000008
1194
1195 #define SONYPI_TYPE1_OFFSET     0x04
1196 #define SONYPI_TYPE2_OFFSET     0x12
1197 #define SONYPI_TYPE3_OFFSET     0x12
1198 #define SONYPI_TYPE4_OFFSET     0x12
1199
1200 struct sony_pic_ioport {
1201         struct acpi_resource_io io1;
1202         struct acpi_resource_io io2;
1203         struct list_head        list;
1204 };
1205
1206 struct sony_pic_irq {
1207         struct acpi_resource_irq        irq;
1208         struct list_head                list;
1209 };
1210
1211 struct sonypi_eventtypes {
1212         u8                      data;
1213         unsigned long           mask;
1214         struct sonypi_event     *events;
1215 };
1216
1217 struct device_ctrl {
1218         int                             model;
1219         int                             (*handle_irq)(const u8, const u8);
1220         u16                             evport_offset;
1221         u8                              has_camera;
1222         u8                              has_bluetooth;
1223         u8                              has_wwan;
1224         struct sonypi_eventtypes        *event_types;
1225 };
1226
1227 struct sony_pic_dev {
1228         struct device_ctrl      *control;
1229         struct acpi_device      *acpi_dev;
1230         struct sony_pic_irq     *cur_irq;
1231         struct sony_pic_ioport  *cur_ioport;
1232         struct list_head        interrupts;
1233         struct list_head        ioports;
1234         struct mutex            lock;
1235         u8                      camera_power;
1236         u8                      bluetooth_power;
1237         u8                      wwan_power;
1238 };
1239
1240 static struct sony_pic_dev spic_dev = {
1241         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1242         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1243 };
1244
1245 /* Event masks */
1246 #define SONYPI_JOGGER_MASK                      0x00000001
1247 #define SONYPI_CAPTURE_MASK                     0x00000002
1248 #define SONYPI_FNKEY_MASK                       0x00000004
1249 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1250 #define SONYPI_PKEY_MASK                        0x00000010
1251 #define SONYPI_BACK_MASK                        0x00000020
1252 #define SONYPI_HELP_MASK                        0x00000040
1253 #define SONYPI_LID_MASK                         0x00000080
1254 #define SONYPI_ZOOM_MASK                        0x00000100
1255 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1256 #define SONYPI_MEYE_MASK                        0x00000400
1257 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1258 #define SONYPI_BATTERY_MASK                     0x00001000
1259 #define SONYPI_WIRELESS_MASK                    0x00002000
1260
1261 struct sonypi_event {
1262         u8      data;
1263         u8      event;
1264 };
1265
1266 /* The set of possible button release events */
1267 static struct sonypi_event sonypi_releaseev[] = {
1268         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1269         { 0, 0 }
1270 };
1271
1272 /* The set of possible jogger events  */
1273 static struct sonypi_event sonypi_joggerev[] = {
1274         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1275         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1276         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1277         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1278         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1279         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1280         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1281         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1282         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1283         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1284         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1285         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1286         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1287         { 0, 0 }
1288 };
1289
1290 /* The set of possible capture button events */
1291 static struct sonypi_event sonypi_captureev[] = {
1292         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1293         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1294         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1295         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1296         { 0, 0 }
1297 };
1298
1299 /* The set of possible fnkeys events */
1300 static struct sonypi_event sonypi_fnkeyev[] = {
1301         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1302         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1303         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1304         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1305         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1306         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1307         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1308         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1309         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1310         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1311         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1312         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1313         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1314         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1315         { 0x21, SONYPI_EVENT_FNKEY_1 },
1316         { 0x22, SONYPI_EVENT_FNKEY_2 },
1317         { 0x31, SONYPI_EVENT_FNKEY_D },
1318         { 0x32, SONYPI_EVENT_FNKEY_E },
1319         { 0x33, SONYPI_EVENT_FNKEY_F },
1320         { 0x34, SONYPI_EVENT_FNKEY_S },
1321         { 0x35, SONYPI_EVENT_FNKEY_B },
1322         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1323         { 0, 0 }
1324 };
1325
1326 /* The set of possible program key events */
1327 static struct sonypi_event sonypi_pkeyev[] = {
1328         { 0x01, SONYPI_EVENT_PKEY_P1 },
1329         { 0x02, SONYPI_EVENT_PKEY_P2 },
1330         { 0x04, SONYPI_EVENT_PKEY_P3 },
1331         { 0, 0 }
1332 };
1333
1334 /* The set of possible bluetooth events */
1335 static struct sonypi_event sonypi_blueev[] = {
1336         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1337         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1338         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1339         { 0, 0 }
1340 };
1341
1342 /* The set of possible wireless events */
1343 static struct sonypi_event sonypi_wlessev[] = {
1344         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1345         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1346         { 0, 0 }
1347 };
1348
1349 /* The set of possible back button events */
1350 static struct sonypi_event sonypi_backev[] = {
1351         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1352         { 0, 0 }
1353 };
1354
1355 /* The set of possible help button events */
1356 static struct sonypi_event sonypi_helpev[] = {
1357         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1358         { 0, 0 }
1359 };
1360
1361
1362 /* The set of possible lid events */
1363 static struct sonypi_event sonypi_lidev[] = {
1364         { 0x51, SONYPI_EVENT_LID_CLOSED },
1365         { 0x50, SONYPI_EVENT_LID_OPENED },
1366         { 0, 0 }
1367 };
1368
1369 /* The set of possible zoom events */
1370 static struct sonypi_event sonypi_zoomev[] = {
1371         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1372         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1373         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1374         { 0, 0 }
1375 };
1376
1377 /* The set of possible thumbphrase events */
1378 static struct sonypi_event sonypi_thumbphraseev[] = {
1379         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1380         { 0, 0 }
1381 };
1382
1383 /* The set of possible motioneye camera events */
1384 static struct sonypi_event sonypi_meyeev[] = {
1385         { 0x00, SONYPI_EVENT_MEYE_FACE },
1386         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1387         { 0, 0 }
1388 };
1389
1390 /* The set of possible memorystick events */
1391 static struct sonypi_event sonypi_memorystickev[] = {
1392         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1393         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1394         { 0, 0 }
1395 };
1396
1397 /* The set of possible battery events */
1398 static struct sonypi_event sonypi_batteryev[] = {
1399         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1400         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1401         { 0, 0 }
1402 };
1403
1404 static struct sonypi_eventtypes type1_events[] = {
1405         { 0, 0xffffffff, sonypi_releaseev },
1406         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1407         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1408         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1409         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1410         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1411         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1412         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1413         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1414         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1415         { 0 },
1416 };
1417 static struct sonypi_eventtypes type2_events[] = {
1418         { 0, 0xffffffff, sonypi_releaseev },
1419         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1420         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1421         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1422         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1423         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1424         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1425         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1426         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1427         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1428         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1429         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1430         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1431         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1432         { 0 },
1433 };
1434 static struct sonypi_eventtypes type3_events[] = {
1435         { 0, 0xffffffff, sonypi_releaseev },
1436         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1437         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1438         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1439         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1440         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1441         { 0 },
1442 };
1443 static struct sonypi_eventtypes type4_events[] = {
1444         { 0, 0xffffffff, sonypi_releaseev },
1445         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1446         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1447         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1448         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1449         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1450         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1451         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1452         { 0 },
1453 };
1454
1455 /* low level spic calls */
1456 #define ITERATIONS_LONG         10000
1457 #define ITERATIONS_SHORT        10
1458 #define wait_on_command(command, iterations) {                          \
1459         unsigned int n = iterations;                                    \
1460         while (--n && (command))                                        \
1461                 udelay(1);                                              \
1462         if (!n)                                                         \
1463                 dprintk("command failed at %s : %s (line %d)\n",        \
1464                                 __FILE__, __func__, __LINE__);  \
1465 }
1466
1467 static u8 sony_pic_call1(u8 dev)
1468 {
1469         u8 v1, v2;
1470
1471         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1472                         ITERATIONS_LONG);
1473         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1474         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1475         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1476         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1477         return v2;
1478 }
1479
1480 static u8 sony_pic_call2(u8 dev, u8 fn)
1481 {
1482         u8 v1;
1483
1484         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1485                         ITERATIONS_LONG);
1486         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1487         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1488                         ITERATIONS_LONG);
1489         outb(fn, spic_dev.cur_ioport->io1.minimum);
1490         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1491         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1492         return v1;
1493 }
1494
1495 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1496 {
1497         u8 v1;
1498
1499         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1500         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1501         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1502         outb(fn, spic_dev.cur_ioport->io1.minimum);
1503         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1504         outb(v, spic_dev.cur_ioport->io1.minimum);
1505         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1506         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1507                         dev, fn, v, v1);
1508         return v1;
1509 }
1510
1511 /*
1512  * minidrivers for SPIC models
1513  */
1514 static int type4_handle_irq(const u8 data_mask, const u8 ev)
1515 {
1516         /*
1517          * 0x31 could mean we have to take some extra action and wait for
1518          * the next irq for some Type4 models, it will generate a new
1519          * irq and we can read new data from the device:
1520          *  - 0x5c and 0x5f requires 0xA0
1521          *  - 0x61 requires 0xB3
1522          */
1523         if (data_mask == 0x31) {
1524                 if (ev == 0x5c || ev == 0x5f)
1525                         sony_pic_call1(0xA0);
1526                 else if (ev == 0x61)
1527                         sony_pic_call1(0xB3);
1528                 return 0;
1529         }
1530         return 1;
1531 }
1532
1533 static struct device_ctrl spic_types[] = {
1534         {
1535                 .model = SONYPI_DEVICE_TYPE1,
1536                 .handle_irq = NULL,
1537                 .evport_offset = SONYPI_TYPE1_OFFSET,
1538                 .event_types = type1_events,
1539         },
1540         {
1541                 .model = SONYPI_DEVICE_TYPE2,
1542                 .handle_irq = NULL,
1543                 .evport_offset = SONYPI_TYPE2_OFFSET,
1544                 .event_types = type2_events,
1545         },
1546         {
1547                 .model = SONYPI_DEVICE_TYPE3,
1548                 .handle_irq = NULL,
1549                 .evport_offset = SONYPI_TYPE3_OFFSET,
1550                 .event_types = type3_events,
1551         },
1552         {
1553                 .model = SONYPI_DEVICE_TYPE4,
1554                 .handle_irq = type4_handle_irq,
1555                 .evport_offset = SONYPI_TYPE4_OFFSET,
1556                 .event_types = type4_events,
1557         },
1558 };
1559
1560 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1561 {
1562         struct pci_dev *pcidev;
1563
1564         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1565                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1566         if (pcidev) {
1567                 dev->control = &spic_types[0];
1568                 goto out;
1569         }
1570
1571         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1572                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1573         if (pcidev) {
1574                 dev->control = &spic_types[2];
1575                 goto out;
1576         }
1577
1578         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1579                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1580         if (pcidev) {
1581                 dev->control = &spic_types[3];
1582                 goto out;
1583         }
1584
1585         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1586                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1587         if (pcidev) {
1588                 dev->control = &spic_types[3];
1589                 goto out;
1590         }
1591
1592         /* default */
1593         dev->control = &spic_types[1];
1594
1595 out:
1596         if (pcidev)
1597                 pci_dev_put(pcidev);
1598
1599         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1600                         dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
1601                         dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
1602                         dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
1603 }
1604
1605 /* camera tests and poweron/poweroff */
1606 #define SONYPI_CAMERA_PICTURE           5
1607 #define SONYPI_CAMERA_CONTROL           0x10
1608
1609 #define SONYPI_CAMERA_BRIGHTNESS                0
1610 #define SONYPI_CAMERA_CONTRAST                  1
1611 #define SONYPI_CAMERA_HUE                       2
1612 #define SONYPI_CAMERA_COLOR                     3
1613 #define SONYPI_CAMERA_SHARPNESS                 4
1614
1615 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1616 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1617 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1618 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1619
1620 /* the rest don't need a loop until not 0xff */
1621 #define SONYPI_CAMERA_AGC                       6
1622 #define SONYPI_CAMERA_AGC_MASK                  0x30
1623 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1624
1625 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1626 #define SONYPI_CAMERA_CONTROL                   0x10
1627
1628 #define SONYPI_CAMERA_STATUS                    7
1629 #define SONYPI_CAMERA_STATUS_READY              0x2
1630 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1631
1632 #define SONYPI_DIRECTION_BACKWARDS              0x4
1633
1634 #define SONYPI_CAMERA_REVISION                  8
1635 #define SONYPI_CAMERA_ROMVERSION                9
1636
1637 static int __sony_pic_camera_ready(void)
1638 {
1639         u8 v;
1640
1641         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1642         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1643 }
1644
1645 static int __sony_pic_camera_off(void)
1646 {
1647         if (!camera) {
1648                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1649                 return -ENODEV;
1650         }
1651
1652         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1653                                 SONYPI_CAMERA_MUTE_MASK),
1654                         ITERATIONS_SHORT);
1655
1656         if (spic_dev.camera_power) {
1657                 sony_pic_call2(0x91, 0);
1658                 spic_dev.camera_power = 0;
1659         }
1660         return 0;
1661 }
1662
1663 static int __sony_pic_camera_on(void)
1664 {
1665         int i, j, x;
1666
1667         if (!camera) {
1668                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1669                 return -ENODEV;
1670         }
1671
1672         if (spic_dev.camera_power)
1673                 return 0;
1674
1675         for (j = 5; j > 0; j--) {
1676
1677                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1678                         msleep(10);
1679                 sony_pic_call1(0x93);
1680
1681                 for (i = 400; i > 0; i--) {
1682                         if (__sony_pic_camera_ready())
1683                                 break;
1684                         msleep(10);
1685                 }
1686                 if (i)
1687                         break;
1688         }
1689
1690         if (j == 0) {
1691                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1692                 return -ENODEV;
1693         }
1694
1695         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1696                                 0x5a),
1697                         ITERATIONS_SHORT);
1698
1699         spic_dev.camera_power = 1;
1700         return 0;
1701 }
1702
1703 /* External camera command (exported to the motion eye v4l driver) */
1704 int sony_pic_camera_command(int command, u8 value)
1705 {
1706         if (!camera)
1707                 return -EIO;
1708
1709         mutex_lock(&spic_dev.lock);
1710
1711         switch (command) {
1712         case SONY_PIC_COMMAND_SETCAMERA:
1713                 if (value)
1714                         __sony_pic_camera_on();
1715                 else
1716                         __sony_pic_camera_off();
1717                 break;
1718         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1719                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1720                                 ITERATIONS_SHORT);
1721                 break;
1722         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1723                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1724                                 ITERATIONS_SHORT);
1725                 break;
1726         case SONY_PIC_COMMAND_SETCAMERAHUE:
1727                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1728                                 ITERATIONS_SHORT);
1729                 break;
1730         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1731                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1732                                 ITERATIONS_SHORT);
1733                 break;
1734         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1735                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1736                                 ITERATIONS_SHORT);
1737                 break;
1738         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1739                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1740                                 ITERATIONS_SHORT);
1741                 break;
1742         case SONY_PIC_COMMAND_SETCAMERAAGC:
1743                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1744                                 ITERATIONS_SHORT);
1745                 break;
1746         default:
1747                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1748                        command);
1749                 break;
1750         }
1751         mutex_unlock(&spic_dev.lock);
1752         return 0;
1753 }
1754 EXPORT_SYMBOL(sony_pic_camera_command);
1755
1756 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1757 static void sony_pic_set_wwanpower(u8 state)
1758 {
1759         state = !!state;
1760         mutex_lock(&spic_dev.lock);
1761         if (spic_dev.wwan_power == state) {
1762                 mutex_unlock(&spic_dev.lock);
1763                 return;
1764         }
1765         sony_pic_call2(0xB0, state);
1766         spic_dev.wwan_power = state;
1767         mutex_unlock(&spic_dev.lock);
1768 }
1769
1770 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1771                 struct device_attribute *attr,
1772                 const char *buffer, size_t count)
1773 {
1774         unsigned long value;
1775         if (count > 31)
1776                 return -EINVAL;
1777
1778         value = simple_strtoul(buffer, NULL, 10);
1779         sony_pic_set_wwanpower(value);
1780
1781         return count;
1782 }
1783
1784 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1785                 struct device_attribute *attr, char *buffer)
1786 {
1787         ssize_t count;
1788         mutex_lock(&spic_dev.lock);
1789         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1790         mutex_unlock(&spic_dev.lock);
1791         return count;
1792 }
1793
1794 /* bluetooth subsystem power state */
1795 static void __sony_pic_set_bluetoothpower(u8 state)
1796 {
1797         state = !!state;
1798         if (spic_dev.bluetooth_power == state)
1799                 return;
1800         sony_pic_call2(0x96, state);
1801         sony_pic_call1(0x82);
1802         spic_dev.bluetooth_power = state;
1803 }
1804
1805 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1806                 struct device_attribute *attr,
1807                 const char *buffer, size_t count)
1808 {
1809         unsigned long value;
1810         if (count > 31)
1811                 return -EINVAL;
1812
1813         value = simple_strtoul(buffer, NULL, 10);
1814         mutex_lock(&spic_dev.lock);
1815         __sony_pic_set_bluetoothpower(value);
1816         mutex_unlock(&spic_dev.lock);
1817
1818         return count;
1819 }
1820
1821 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1822                 struct device_attribute *attr, char *buffer)
1823 {
1824         ssize_t count = 0;
1825         mutex_lock(&spic_dev.lock);
1826         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1827         mutex_unlock(&spic_dev.lock);
1828         return count;
1829 }
1830
1831 /* fan speed */
1832 /* FAN0 information (reverse engineered from ACPI tables) */
1833 #define SONY_PIC_FAN0_STATUS    0x93
1834 static int sony_pic_set_fanspeed(unsigned long value)
1835 {
1836         return ec_write(SONY_PIC_FAN0_STATUS, value);
1837 }
1838
1839 static int sony_pic_get_fanspeed(u8 *value)
1840 {
1841         return ec_read(SONY_PIC_FAN0_STATUS, value);
1842 }
1843
1844 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1845                 struct device_attribute *attr,
1846                 const char *buffer, size_t count)
1847 {
1848         unsigned long value;
1849         if (count > 31)
1850                 return -EINVAL;
1851
1852         value = simple_strtoul(buffer, NULL, 10);
1853         if (sony_pic_set_fanspeed(value))
1854                 return -EIO;
1855
1856         return count;
1857 }
1858
1859 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1860                 struct device_attribute *attr, char *buffer)
1861 {
1862         u8 value = 0;
1863         if (sony_pic_get_fanspeed(&value))
1864                 return -EIO;
1865
1866         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1867 }
1868
1869 #define SPIC_ATTR(_name, _mode)                                 \
1870 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1871                 _mode, sony_pic_## _name ##_show,               \
1872                 sony_pic_## _name ##_store)
1873
1874 static SPIC_ATTR(bluetoothpower, 0644);
1875 static SPIC_ATTR(wwanpower, 0644);
1876 static SPIC_ATTR(fanspeed, 0644);
1877
1878 static struct attribute *spic_attributes[] = {
1879         &spic_attr_bluetoothpower.attr,
1880         &spic_attr_wwanpower.attr,
1881         &spic_attr_fanspeed.attr,
1882         NULL
1883 };
1884
1885 static struct attribute_group spic_attribute_group = {
1886         .attrs = spic_attributes
1887 };
1888
1889 /******** SONYPI compatibility **********/
1890 #ifdef CONFIG_SONYPI_COMPAT
1891
1892 /* battery / brightness / temperature  addresses */
1893 #define SONYPI_BAT_FLAGS        0x81
1894 #define SONYPI_LCD_LIGHT        0x96
1895 #define SONYPI_BAT1_PCTRM       0xa0
1896 #define SONYPI_BAT1_LEFT        0xa2
1897 #define SONYPI_BAT1_MAXRT       0xa4
1898 #define SONYPI_BAT2_PCTRM       0xa8
1899 #define SONYPI_BAT2_LEFT        0xaa
1900 #define SONYPI_BAT2_MAXRT       0xac
1901 #define SONYPI_BAT1_MAXTK       0xb0
1902 #define SONYPI_BAT1_FULL        0xb2
1903 #define SONYPI_BAT2_MAXTK       0xb8
1904 #define SONYPI_BAT2_FULL        0xba
1905 #define SONYPI_TEMP_STATUS      0xC1
1906
1907 struct sonypi_compat_s {
1908         struct fasync_struct    *fifo_async;
1909         struct kfifo            *fifo;
1910         spinlock_t              fifo_lock;
1911         wait_queue_head_t       fifo_proc_list;
1912         atomic_t                open_count;
1913 };
1914 static struct sonypi_compat_s sonypi_compat = {
1915         .open_count = ATOMIC_INIT(0),
1916 };
1917
1918 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1919 {
1920         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1921 }
1922
1923 static int sonypi_misc_release(struct inode *inode, struct file *file)
1924 {
1925         atomic_dec(&sonypi_compat.open_count);
1926         return 0;
1927 }
1928
1929 static int sonypi_misc_open(struct inode *inode, struct file *file)
1930 {
1931         /* Flush input queue on first open */
1932         lock_kernel();
1933         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1934                 kfifo_reset(sonypi_compat.fifo);
1935         unlock_kernel();
1936         return 0;
1937 }
1938
1939 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1940                                 size_t count, loff_t *pos)
1941 {
1942         ssize_t ret;
1943         unsigned char c;
1944
1945         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1946             (file->f_flags & O_NONBLOCK))
1947                 return -EAGAIN;
1948
1949         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1950                                        kfifo_len(sonypi_compat.fifo) != 0);
1951         if (ret)
1952                 return ret;
1953
1954         while (ret < count &&
1955                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1956                 if (put_user(c, buf++))
1957                         return -EFAULT;
1958                 ret++;
1959         }
1960
1961         if (ret > 0) {
1962                 struct inode *inode = file->f_path.dentry->d_inode;
1963                 inode->i_atime = current_fs_time(inode->i_sb);
1964         }
1965
1966         return ret;
1967 }
1968
1969 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1970 {
1971         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1972         if (kfifo_len(sonypi_compat.fifo))
1973                 return POLLIN | POLLRDNORM;
1974         return 0;
1975 }
1976
1977 static int ec_read16(u8 addr, u16 *value)
1978 {
1979         u8 val_lb, val_hb;
1980         if (ec_read(addr, &val_lb))
1981                 return -1;
1982         if (ec_read(addr + 1, &val_hb))
1983                 return -1;
1984         *value = val_lb | (val_hb << 8);
1985         return 0;
1986 }
1987
1988 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1989                              unsigned int cmd, unsigned long arg)
1990 {
1991         int ret = 0;
1992         void __user *argp = (void __user *)arg;
1993         u8 val8;
1994         u16 val16;
1995         int value;
1996
1997         mutex_lock(&spic_dev.lock);
1998         switch (cmd) {
1999         case SONYPI_IOCGBRT:
2000                 if (sony_backlight_device == NULL) {
2001                         ret = -EIO;
2002                         break;
2003                 }
2004                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2005                         ret = -EIO;
2006                         break;
2007                 }
2008                 val8 = ((value & 0xff) - 1) << 5;
2009                 if (copy_to_user(argp, &val8, sizeof(val8)))
2010                                 ret = -EFAULT;
2011                 break;
2012         case SONYPI_IOCSBRT:
2013                 if (sony_backlight_device == NULL) {
2014                         ret = -EIO;
2015                         break;
2016                 }
2017                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2018                         ret = -EFAULT;
2019                         break;
2020                 }
2021                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2022                                 (val8 >> 5) + 1, NULL)) {
2023                         ret = -EIO;
2024                         break;
2025                 }
2026                 /* sync the backlight device status */
2027                 sony_backlight_device->props.brightness =
2028                     sony_backlight_get_brightness(sony_backlight_device);
2029                 break;
2030         case SONYPI_IOCGBAT1CAP:
2031                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2032                         ret = -EIO;
2033                         break;
2034                 }
2035                 if (copy_to_user(argp, &val16, sizeof(val16)))
2036                         ret = -EFAULT;
2037                 break;
2038         case SONYPI_IOCGBAT1REM:
2039                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2040                         ret = -EIO;
2041                         break;
2042                 }
2043                 if (copy_to_user(argp, &val16, sizeof(val16)))
2044                         ret = -EFAULT;
2045                 break;
2046         case SONYPI_IOCGBAT2CAP:
2047                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2048                         ret = -EIO;
2049                         break;
2050                 }
2051                 if (copy_to_user(argp, &val16, sizeof(val16)))
2052                         ret = -EFAULT;
2053                 break;
2054         case SONYPI_IOCGBAT2REM:
2055                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2056                         ret = -EIO;
2057                         break;
2058                 }
2059                 if (copy_to_user(argp, &val16, sizeof(val16)))
2060                         ret = -EFAULT;
2061                 break;
2062         case SONYPI_IOCGBATFLAGS:
2063                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2064                         ret = -EIO;
2065                         break;
2066                 }
2067                 val8 &= 0x07;
2068                 if (copy_to_user(argp, &val8, sizeof(val8)))
2069                         ret = -EFAULT;
2070                 break;
2071         case SONYPI_IOCGBLUE:
2072                 val8 = spic_dev.bluetooth_power;
2073                 if (copy_to_user(argp, &val8, sizeof(val8)))
2074                         ret = -EFAULT;
2075                 break;
2076         case SONYPI_IOCSBLUE:
2077                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2078                         ret = -EFAULT;
2079                         break;
2080                 }
2081                 __sony_pic_set_bluetoothpower(val8);
2082                 break;
2083         /* FAN Controls */
2084         case SONYPI_IOCGFAN:
2085                 if (sony_pic_get_fanspeed(&val8)) {
2086                         ret = -EIO;
2087                         break;
2088                 }
2089                 if (copy_to_user(argp, &val8, sizeof(val8)))
2090                         ret = -EFAULT;
2091                 break;
2092         case SONYPI_IOCSFAN:
2093                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2094                         ret = -EFAULT;
2095                         break;
2096                 }
2097                 if (sony_pic_set_fanspeed(val8))
2098                         ret = -EIO;
2099                 break;
2100         /* GET Temperature (useful under APM) */
2101         case SONYPI_IOCGTEMP:
2102                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2103                         ret = -EIO;
2104                         break;
2105                 }
2106                 if (copy_to_user(argp, &val8, sizeof(val8)))
2107                         ret = -EFAULT;
2108                 break;
2109         default:
2110                 ret = -EINVAL;
2111         }
2112         mutex_unlock(&spic_dev.lock);
2113         return ret;
2114 }
2115
2116 static const struct file_operations sonypi_misc_fops = {
2117         .owner          = THIS_MODULE,
2118         .read           = sonypi_misc_read,
2119         .poll           = sonypi_misc_poll,
2120         .open           = sonypi_misc_open,
2121         .release        = sonypi_misc_release,
2122         .fasync         = sonypi_misc_fasync,
2123         .ioctl          = sonypi_misc_ioctl,
2124 };
2125
2126 static struct miscdevice sonypi_misc_device = {
2127         .minor          = MISC_DYNAMIC_MINOR,
2128         .name           = "sonypi",
2129         .fops           = &sonypi_misc_fops,
2130 };
2131
2132 static void sonypi_compat_report_event(u8 event)
2133 {
2134         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2135         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2136         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2137 }
2138
2139 static int sonypi_compat_init(void)
2140 {
2141         int error;
2142
2143         spin_lock_init(&sonypi_compat.fifo_lock);
2144         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2145                                          &sonypi_compat.fifo_lock);
2146         if (IS_ERR(sonypi_compat.fifo)) {
2147                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2148                 return PTR_ERR(sonypi_compat.fifo);
2149         }
2150
2151         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2152
2153         if (minor != -1)
2154                 sonypi_misc_device.minor = minor;
2155         error = misc_register(&sonypi_misc_device);
2156         if (error) {
2157                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2158                 goto err_free_kfifo;
2159         }
2160         if (minor == -1)
2161                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2162                        sonypi_misc_device.minor);
2163
2164         return 0;
2165
2166 err_free_kfifo:
2167         kfifo_free(sonypi_compat.fifo);
2168         return error;
2169 }
2170
2171 static void sonypi_compat_exit(void)
2172 {
2173         misc_deregister(&sonypi_misc_device);
2174         kfifo_free(sonypi_compat.fifo);
2175 }
2176 #else
2177 static int sonypi_compat_init(void) { return 0; }
2178 static void sonypi_compat_exit(void) { }
2179 static void sonypi_compat_report_event(u8 event) { }
2180 #endif /* CONFIG_SONYPI_COMPAT */
2181
2182 /*
2183  * ACPI callbacks
2184  */
2185 static acpi_status
2186 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2187 {
2188         u32 i;
2189         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2190
2191         switch (resource->type) {
2192         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2193                 {
2194                         /* start IO enumeration */
2195                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2196                         if (!ioport)
2197                                 return AE_ERROR;
2198
2199                         list_add(&ioport->list, &dev->ioports);
2200                         return AE_OK;
2201                 }
2202
2203         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2204                 /* end IO enumeration */
2205                 return AE_OK;
2206
2207         case ACPI_RESOURCE_TYPE_IRQ:
2208                 {
2209                         struct acpi_resource_irq *p = &resource->data.irq;
2210                         struct sony_pic_irq *interrupt = NULL;
2211                         if (!p || !p->interrupt_count) {
2212                                 /*
2213                                  * IRQ descriptors may have no IRQ# bits set,
2214                                  * particularly those those w/ _STA disabled
2215                                  */
2216                                 dprintk("Blank IRQ resource\n");
2217                                 return AE_OK;
2218                         }
2219                         for (i = 0; i < p->interrupt_count; i++) {
2220                                 if (!p->interrupts[i]) {
2221                                         printk(KERN_WARNING DRV_PFX
2222                                                         "Invalid IRQ %d\n",
2223                                                         p->interrupts[i]);
2224                                         continue;
2225                                 }
2226                                 interrupt = kzalloc(sizeof(*interrupt),
2227                                                 GFP_KERNEL);
2228                                 if (!interrupt)
2229                                         return AE_ERROR;
2230
2231                                 list_add(&interrupt->list, &dev->interrupts);
2232                                 interrupt->irq.triggering = p->triggering;
2233                                 interrupt->irq.polarity = p->polarity;
2234                                 interrupt->irq.sharable = p->sharable;
2235                                 interrupt->irq.interrupt_count = 1;
2236                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2237                         }
2238                         return AE_OK;
2239                 }
2240         case ACPI_RESOURCE_TYPE_IO:
2241                 {
2242                         struct acpi_resource_io *io = &resource->data.io;
2243                         struct sony_pic_ioport *ioport =
2244                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2245                         if (!io) {
2246                                 dprintk("Blank IO resource\n");
2247                                 return AE_OK;
2248                         }
2249
2250                         if (!ioport->io1.minimum) {
2251                                 memcpy(&ioport->io1, io, sizeof(*io));
2252                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2253                                                 ioport->io1.address_length);
2254                         }
2255                         else if (!ioport->io2.minimum) {
2256                                 memcpy(&ioport->io2, io, sizeof(*io));
2257                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2258                                                 ioport->io2.address_length);
2259                         }
2260                         else {
2261                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2262                                 return AE_ERROR;
2263                         }
2264                         return AE_OK;
2265                 }
2266         default:
2267                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2268                                 resource->type);
2269
2270         case ACPI_RESOURCE_TYPE_END_TAG:
2271                 return AE_OK;
2272         }
2273         return AE_CTRL_TERMINATE;
2274 }
2275
2276 static int sony_pic_possible_resources(struct acpi_device *device)
2277 {
2278         int result = 0;
2279         acpi_status status = AE_OK;
2280
2281         if (!device)
2282                 return -EINVAL;
2283
2284         /* get device status */
2285         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2286         dprintk("Evaluating _STA\n");
2287         result = acpi_bus_get_status(device);
2288         if (result) {
2289                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2290                 goto end;
2291         }
2292
2293         if (!device->status.enabled)
2294                 dprintk("Device disabled\n");
2295         else
2296                 dprintk("Device enabled\n");
2297
2298         /*
2299          * Query and parse 'method'
2300          */
2301         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2302         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2303                         sony_pic_read_possible_resource, &spic_dev);
2304         if (ACPI_FAILURE(status)) {
2305                 printk(KERN_WARNING DRV_PFX
2306                                 "Failure evaluating %s\n",
2307                                 METHOD_NAME__PRS);
2308                 result = -ENODEV;
2309         }
2310 end:
2311         return result;
2312 }
2313
2314 /*
2315  *  Disable the spic device by calling its _DIS method
2316  */
2317 static int sony_pic_disable(struct acpi_device *device)
2318 {
2319         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2320                                                NULL);
2321
2322         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2323                 return -ENXIO;
2324
2325         dprintk("Device disabled\n");
2326         return 0;
2327 }
2328
2329
2330 /*
2331  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2332  *
2333  *  Call _SRS to set current resources
2334  */
2335 static int sony_pic_enable(struct acpi_device *device,
2336                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2337 {
2338         acpi_status status;
2339         int result = 0;
2340         /* Type 1 resource layout is:
2341          *    IO
2342          *    IO
2343          *    IRQNoFlags
2344          *    End
2345          *
2346          * Type 2 and 3 resource layout is:
2347          *    IO
2348          *    IRQNoFlags
2349          *    End
2350          */
2351         struct {
2352                 struct acpi_resource res1;
2353                 struct acpi_resource res2;
2354                 struct acpi_resource res3;
2355                 struct acpi_resource res4;
2356         } *resource;
2357         struct acpi_buffer buffer = { 0, NULL };
2358
2359         if (!ioport || !irq)
2360                 return -EINVAL;
2361
2362         /* init acpi_buffer */
2363         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2364         if (!resource)
2365                 return -ENOMEM;
2366
2367         buffer.length = sizeof(*resource) + 1;
2368         buffer.pointer = resource;
2369
2370         /* setup Type 1 resources */
2371         if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2372
2373                 /* setup io resources */
2374                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2375                 resource->res1.length = sizeof(struct acpi_resource);
2376                 memcpy(&resource->res1.data.io, &ioport->io1,
2377                                 sizeof(struct acpi_resource_io));
2378
2379                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2380                 resource->res2.length = sizeof(struct acpi_resource);
2381                 memcpy(&resource->res2.data.io, &ioport->io2,
2382                                 sizeof(struct acpi_resource_io));
2383
2384                 /* setup irq resource */
2385                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2386                 resource->res3.length = sizeof(struct acpi_resource);
2387                 memcpy(&resource->res3.data.irq, &irq->irq,
2388                                 sizeof(struct acpi_resource_irq));
2389                 /* we requested a shared irq */
2390                 resource->res3.data.irq.sharable = ACPI_SHARED;
2391
2392                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2393
2394         }
2395         /* setup Type 2/3 resources */
2396         else {
2397                 /* setup io resource */
2398                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2399                 resource->res1.length = sizeof(struct acpi_resource);
2400                 memcpy(&resource->res1.data.io, &ioport->io1,
2401                                 sizeof(struct acpi_resource_io));
2402
2403                 /* setup irq resource */
2404                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2405                 resource->res2.length = sizeof(struct acpi_resource);
2406                 memcpy(&resource->res2.data.irq, &irq->irq,
2407                                 sizeof(struct acpi_resource_irq));
2408                 /* we requested a shared irq */
2409                 resource->res2.data.irq.sharable = ACPI_SHARED;
2410
2411                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2412         }
2413
2414         /* Attempt to set the resource */
2415         dprintk("Evaluating _SRS\n");
2416         status = acpi_set_current_resources(device->handle, &buffer);
2417
2418         /* check for total failure */
2419         if (ACPI_FAILURE(status)) {
2420                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2421                 result = -ENODEV;
2422                 goto end;
2423         }
2424
2425         /* Necessary device initializations calls (from sonypi) */
2426         sony_pic_call1(0x82);
2427         sony_pic_call2(0x81, 0xff);
2428         sony_pic_call1(compat ? 0x92 : 0x82);
2429
2430 end:
2431         kfree(resource);
2432         return result;
2433 }
2434
2435 /*****************
2436  *
2437  * ISR: some event is available
2438  *
2439  *****************/
2440 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2441 {
2442         int i, j;
2443         u8 ev = 0;
2444         u8 data_mask = 0;
2445         u8 device_event = 0;
2446
2447         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2448
2449         ev = inb_p(dev->cur_ioport->io1.minimum);
2450         if (dev->cur_ioport->io2.minimum)
2451                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2452         else
2453                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2454                                 dev->control->evport_offset);
2455
2456         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2457                         ev, data_mask, dev->cur_ioport->io1.minimum,
2458                         dev->control->evport_offset);
2459
2460         if (ev == 0x00 || ev == 0xff)
2461                 return IRQ_HANDLED;
2462
2463         for (i = 0; dev->control->event_types[i].mask; i++) {
2464
2465                 if ((data_mask & dev->control->event_types[i].data) !=
2466                     dev->control->event_types[i].data)
2467                         continue;
2468
2469                 if (!(mask & dev->control->event_types[i].mask))
2470                         continue;
2471
2472                 for (j = 0; dev->control->event_types[i].events[j].event; j++) {
2473                         if (ev == dev->control->event_types[i].events[j].data) {
2474                                 device_event =
2475                                         dev->control->
2476                                                 event_types[i].events[j].event;
2477                                 goto found;
2478                         }
2479                 }
2480         }
2481         /* Still not able to decode the event try to pass
2482          * it over to the minidriver
2483          */
2484         if (dev->control->handle_irq &&
2485                         dev->control->handle_irq(data_mask, ev) == 0)
2486                 return IRQ_HANDLED;
2487
2488         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2489                         ev, data_mask, dev->cur_ioport->io1.minimum,
2490                         dev->control->evport_offset);
2491         return IRQ_HANDLED;
2492
2493 found:
2494         sony_laptop_report_input_event(device_event);
2495         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2496         sonypi_compat_report_event(device_event);
2497
2498         return IRQ_HANDLED;
2499 }
2500
2501 /*****************
2502  *
2503  *  ACPI driver
2504  *
2505  *****************/
2506 static int sony_pic_remove(struct acpi_device *device, int type)
2507 {
2508         struct sony_pic_ioport *io, *tmp_io;
2509         struct sony_pic_irq *irq, *tmp_irq;
2510
2511         if (sony_pic_disable(device)) {
2512                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2513                 return -ENXIO;
2514         }
2515
2516         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2517         release_region(spic_dev.cur_ioport->io1.minimum,
2518                         spic_dev.cur_ioport->io1.address_length);
2519         if (spic_dev.cur_ioport->io2.minimum)
2520                 release_region(spic_dev.cur_ioport->io2.minimum,
2521                                 spic_dev.cur_ioport->io2.address_length);
2522
2523         sonypi_compat_exit();
2524
2525         sony_laptop_remove_input();
2526
2527         /* pf attrs */
2528         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2529         sony_pf_remove();
2530
2531         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2532                 list_del(&io->list);
2533                 kfree(io);
2534         }
2535         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2536                 list_del(&irq->list);
2537                 kfree(irq);
2538         }
2539         spic_dev.cur_ioport = NULL;
2540         spic_dev.cur_irq = NULL;
2541
2542         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2543         return 0;
2544 }
2545
2546 static int sony_pic_add(struct acpi_device *device)
2547 {
2548         int result;
2549         struct sony_pic_ioport *io, *tmp_io;
2550         struct sony_pic_irq *irq, *tmp_irq;
2551
2552         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2553                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2554
2555         spic_dev.acpi_dev = device;
2556         strcpy(acpi_device_class(device), "sony/hotkey");
2557         sony_pic_detect_device_type(&spic_dev);
2558         mutex_init(&spic_dev.lock);
2559
2560         /* read _PRS resources */
2561         result = sony_pic_possible_resources(device);
2562         if (result) {
2563                 printk(KERN_ERR DRV_PFX
2564                                 "Unabe to read possible resources.\n");
2565                 goto err_free_resources;
2566         }
2567
2568         /* setup input devices and helper fifo */
2569         result = sony_laptop_setup_input(device);
2570         if (result) {
2571                 printk(KERN_ERR DRV_PFX
2572                                 "Unabe to create input devices.\n");
2573                 goto err_free_resources;
2574         }
2575
2576         if (sonypi_compat_init())
2577                 goto err_remove_input;
2578
2579         /* request io port */
2580         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2581                 if (request_region(io->io1.minimum, io->io1.address_length,
2582                                         "Sony Programable I/O Device")) {
2583                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2584                                         io->io1.minimum, io->io1.maximum,
2585                                         io->io1.address_length);
2586                         /* Type 1 have 2 ioports */
2587                         if (io->io2.minimum) {
2588                                 if (request_region(io->io2.minimum,
2589                                                 io->io2.address_length,
2590                                                 "Sony Programable I/O Device")) {
2591                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2592                                                         io->io2.minimum, io->io2.maximum,
2593                                                         io->io2.address_length);
2594                                         spic_dev.cur_ioport = io;
2595                                         break;
2596                                 }
2597                                 else {
2598                                         dprintk("Unable to get I/O port2: "
2599                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2600                                                         io->io2.minimum, io->io2.maximum,
2601                                                         io->io2.address_length);
2602                                         release_region(io->io1.minimum,
2603                                                         io->io1.address_length);
2604                                 }
2605                         }
2606                         else {
2607                                 spic_dev.cur_ioport = io;
2608                                 break;
2609                         }
2610                 }
2611         }
2612         if (!spic_dev.cur_ioport) {
2613                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2614                 result = -ENODEV;
2615                 goto err_remove_compat;
2616         }
2617
2618         /* request IRQ */
2619         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2620                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2621                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2622                         dprintk("IRQ: %d - triggering: %d - "
2623                                         "polarity: %d - shr: %d\n",
2624                                         irq->irq.interrupts[0],
2625                                         irq->irq.triggering,
2626                                         irq->irq.polarity,
2627                                         irq->irq.sharable);
2628                         spic_dev.cur_irq = irq;
2629                         break;
2630                 }
2631         }
2632         if (!spic_dev.cur_irq) {
2633                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2634                 result = -ENODEV;
2635                 goto err_release_region;
2636         }
2637
2638         /* set resource status _SRS */
2639         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2640         if (result) {
2641                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2642                 goto err_free_irq;
2643         }
2644
2645         spic_dev.bluetooth_power = -1;
2646         /* create device attributes */
2647         result = sony_pf_add();
2648         if (result)
2649                 goto err_disable_device;
2650
2651         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2652         if (result)
2653                 goto err_remove_pf;
2654
2655         return 0;
2656
2657 err_remove_pf:
2658         sony_pf_remove();
2659
2660 err_disable_device:
2661         sony_pic_disable(device);
2662
2663 err_free_irq:
2664         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2665
2666 err_release_region:
2667         release_region(spic_dev.cur_ioport->io1.minimum,
2668                         spic_dev.cur_ioport->io1.address_length);
2669         if (spic_dev.cur_ioport->io2.minimum)
2670                 release_region(spic_dev.cur_ioport->io2.minimum,
2671                                 spic_dev.cur_ioport->io2.address_length);
2672
2673 err_remove_compat:
2674         sonypi_compat_exit();
2675
2676 err_remove_input:
2677         sony_laptop_remove_input();
2678
2679 err_free_resources:
2680         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2681                 list_del(&io->list);
2682                 kfree(io);
2683         }
2684         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2685                 list_del(&irq->list);
2686                 kfree(irq);
2687         }
2688         spic_dev.cur_ioport = NULL;
2689         spic_dev.cur_irq = NULL;
2690
2691         return result;
2692 }
2693
2694 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2695 {
2696         if (sony_pic_disable(device))
2697                 return -ENXIO;
2698         return 0;
2699 }
2700
2701 static int sony_pic_resume(struct acpi_device *device)
2702 {
2703         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2704         return 0;
2705 }
2706
2707 static const struct acpi_device_id sony_pic_device_ids[] = {
2708         {SONY_PIC_HID, 0},
2709         {"", 0},
2710 };
2711
2712 static struct acpi_driver sony_pic_driver = {
2713         .name = SONY_PIC_DRIVER_NAME,
2714         .class = SONY_PIC_CLASS,
2715         .ids = sony_pic_device_ids,
2716         .owner = THIS_MODULE,
2717         .ops = {
2718                 .add = sony_pic_add,
2719                 .remove = sony_pic_remove,
2720                 .suspend = sony_pic_suspend,
2721                 .resume = sony_pic_resume,
2722                 },
2723 };
2724
2725 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2726         {
2727                 .ident = "Sony Vaio",
2728                 .matches = {
2729                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2730                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2731                 },
2732         },
2733         {
2734                 .ident = "Sony Vaio",
2735                 .matches = {
2736                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2737                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2738                 },
2739         },
2740         { }
2741 };
2742
2743 static int __init sony_laptop_init(void)
2744 {
2745         int result;
2746
2747         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2748                 result = acpi_bus_register_driver(&sony_pic_driver);
2749                 if (result) {
2750                         printk(KERN_ERR DRV_PFX
2751                                         "Unable to register SPIC driver.");
2752                         goto out;
2753                 }
2754         }
2755
2756         result = acpi_bus_register_driver(&sony_nc_driver);
2757         if (result) {
2758                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2759                 goto out_unregister_pic;
2760         }
2761
2762         return 0;
2763
2764 out_unregister_pic:
2765         if (!no_spic)
2766                 acpi_bus_unregister_driver(&sony_pic_driver);
2767 out:
2768         return result;
2769 }
2770
2771 static void __exit sony_laptop_exit(void)
2772 {
2773         acpi_bus_unregister_driver(&sony_nc_driver);
2774         if (!no_spic)
2775                 acpi_bus_unregister_driver(&sony_pic_driver);
2776 }
2777
2778 module_init(sony_laptop_init);
2779 module_exit(sony_laptop_exit);