sony-laptop: fix early NULL pointer dereference
[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) 2007-2009 Mattia Dongili <malattia@linux.it>
6  *
7  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
8  * which are copyrighted by their respective authors.
9  *
10  * The SNY6001 driver part is based on the sonypi driver which includes
11  * material from:
12  *
13  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
14  *
15  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
16  *
17  * Copyright (C) 2001-2002 AlcĂ´ve <www.alcove.com>
18  *
19  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
20  *
21  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
22  *
23  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
24  *
25  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
26  *
27  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
28  *
29  * This program is free software; you can redistribute it and/or modify
30  * it under the terms of the GNU General Public License as published by
31  * the Free Software Foundation; either version 2 of the License, or
32  * (at your option) any later version.
33  *
34  * This program is distributed in the hope that it will be useful,
35  * but WITHOUT ANY WARRANTY; without even the implied warranty of
36  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
37  * GNU General Public License for more details.
38  *
39  * You should have received a copy of the GNU General Public License
40  * along with this program; if not, write to the Free Software
41  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
42  *
43  */
44
45 #include <linux/kernel.h>
46 #include <linux/module.h>
47 #include <linux/moduleparam.h>
48 #include <linux/init.h>
49 #include <linux/types.h>
50 #include <linux/backlight.h>
51 #include <linux/platform_device.h>
52 #include <linux/err.h>
53 #include <linux/dmi.h>
54 #include <linux/pci.h>
55 #include <linux/interrupt.h>
56 #include <linux/delay.h>
57 #include <linux/input.h>
58 #include <linux/kfifo.h>
59 #include <linux/workqueue.h>
60 #include <linux/acpi.h>
61 #include <linux/slab.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 #include <linux/rfkill.h>
68 #ifdef CONFIG_SONYPI_COMPAT
69 #include <linux/poll.h>
70 #include <linux/miscdevice.h>
71 #endif
72
73 #define DRV_PFX                 "sony-laptop: "
74 #define dprintk(msg...)         do {    \
75         if (debug)                      \
76                 pr_warn(DRV_PFX msg);   \
77 } while (0)
78
79 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
80
81 #define SONY_NC_CLASS           "sony-nc"
82 #define SONY_NC_HID             "SNY5001"
83 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
84
85 #define SONY_PIC_CLASS          "sony-pic"
86 #define SONY_PIC_HID            "SNY6001"
87 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
88
89 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
90 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
91 MODULE_LICENSE("GPL");
92 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
93
94 static int debug;
95 module_param(debug, int, 0);
96 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
97                  "the development of this driver");
98
99 static int no_spic;             /* = 0 */
100 module_param(no_spic, int, 0444);
101 MODULE_PARM_DESC(no_spic,
102                  "set this if you don't want to enable the SPIC device");
103
104 static int compat;              /* = 0 */
105 module_param(compat, int, 0444);
106 MODULE_PARM_DESC(compat,
107                  "set this if you want to enable backward compatibility mode");
108
109 static unsigned long mask = 0xffffffff;
110 module_param(mask, ulong, 0644);
111 MODULE_PARM_DESC(mask,
112                  "set this to the mask of event you want to enable (see doc)");
113
114 static int camera;              /* = 0 */
115 module_param(camera, int, 0444);
116 MODULE_PARM_DESC(camera,
117                  "set this to 1 to enable Motion Eye camera controls "
118                  "(only use it if you have a C1VE or C1VN model)");
119
120 #ifdef CONFIG_SONYPI_COMPAT
121 static int minor = -1;
122 module_param(minor, int, 0);
123 MODULE_PARM_DESC(minor,
124                  "minor number of the misc device for the SPIC compatibility code, "
125                  "default is -1 (automatic)");
126 #endif
127
128 static int kbd_backlight;       /* = 1 */
129 module_param(kbd_backlight, int, 0444);
130 MODULE_PARM_DESC(kbd_backlight,
131                  "set this to 0 to disable keyboard backlight, "
132                  "1 to enable it (default: 0)");
133
134 static int kbd_backlight_timeout;       /* = 0 */
135 module_param(kbd_backlight_timeout, int, 0444);
136 MODULE_PARM_DESC(kbd_backlight_timeout,
137                  "set this to 0 to set the default 10 seconds timeout, "
138                  "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
139                  "(default: 0)");
140
141 enum sony_nc_rfkill {
142         SONY_WIFI,
143         SONY_BLUETOOTH,
144         SONY_WWAN,
145         SONY_WIMAX,
146         N_SONY_RFKILL,
147 };
148
149 static int sony_rfkill_handle;
150 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
151 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
152 static void sony_nc_rfkill_update(void);
153
154 /*********** Input Devices ***********/
155
156 #define SONY_LAPTOP_BUF_SIZE    128
157 struct sony_laptop_input_s {
158         atomic_t                users;
159         struct input_dev        *jog_dev;
160         struct input_dev        *key_dev;
161         struct kfifo            fifo;
162         spinlock_t              fifo_lock;
163         struct timer_list       release_key_timer;
164 };
165
166 static struct sony_laptop_input_s sony_laptop_input = {
167         .users = ATOMIC_INIT(0),
168 };
169
170 struct sony_laptop_keypress {
171         struct input_dev *dev;
172         int key;
173 };
174
175 /* Correspondance table between sonypi events
176  * and input layer indexes in the keymap
177  */
178 static int sony_laptop_input_index[] = {
179         -1,     /*  0 no event */
180         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
181         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
182         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
183         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
184         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
185         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
186          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
187          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
188          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
189          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
190          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
191          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
192          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
193          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
194          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
195          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
196         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
197         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
198         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
199         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
200         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
201         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
202         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
203         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
204         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
205         19,     /* 26 SONYPI_EVENT_FNKEY_D */
206         20,     /* 27 SONYPI_EVENT_FNKEY_E */
207         21,     /* 28 SONYPI_EVENT_FNKEY_F */
208         22,     /* 29 SONYPI_EVENT_FNKEY_S */
209         23,     /* 30 SONYPI_EVENT_FNKEY_B */
210         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
211         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
212         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
213         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
214         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
215         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
216         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
217         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
218         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
219         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
220         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
221         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
222         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
223         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
224         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
225         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
226         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
227         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
228         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
229         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
230         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
231         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
232         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
233         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
234         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
235         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
236         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
237         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
238         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
239         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
240         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
241         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
242         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
243         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
244         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
245         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
246         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
247         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
248         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
249         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
250         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
251         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
252         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
253 };
254
255 static int sony_laptop_input_keycode_map[] = {
256         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
257         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
258         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
259         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
260         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
261         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
262         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
263         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
264         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
265         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
266         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
267         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
268         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
269         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
270         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
271         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
272         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
273         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
274         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
275         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
276         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
277         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
278         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
279         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
280         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
281         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
282         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
283         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
284         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
285         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
286         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
287         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
288         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
289         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
290         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
291         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
292         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
293         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
294         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
295         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
296         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
297         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
298         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
299         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
300         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
301         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
302         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
303         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
304         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
305         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
306         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
307         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
308         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
309         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
310         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
311         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
312         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
313         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
314         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
315         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
316 };
317
318 /* release buttons after a short delay if pressed */
319 static void do_sony_laptop_release_key(unsigned long unused)
320 {
321         struct sony_laptop_keypress kp;
322         unsigned long flags;
323
324         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
325
326         if (kfifo_out(&sony_laptop_input.fifo,
327                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
328                 input_report_key(kp.dev, kp.key, 0);
329                 input_sync(kp.dev);
330         }
331
332         /* If there is something in the fifo schedule next release. */
333         if (kfifo_len(&sony_laptop_input.fifo) != 0)
334                 mod_timer(&sony_laptop_input.release_key_timer,
335                           jiffies + msecs_to_jiffies(10));
336
337         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
338 }
339
340 /* forward event to the input subsystem */
341 static void sony_laptop_report_input_event(u8 event)
342 {
343         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
344         struct input_dev *key_dev = sony_laptop_input.key_dev;
345         struct sony_laptop_keypress kp = { NULL };
346
347         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
348                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
349                 /* Nothing, not all VAIOs generate this event */
350                 return;
351         }
352
353         /* report events */
354         switch (event) {
355         /* jog_dev events */
356         case SONYPI_EVENT_JOGDIAL_UP:
357         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
358                 input_report_rel(jog_dev, REL_WHEEL, 1);
359                 input_sync(jog_dev);
360                 return;
361
362         case SONYPI_EVENT_JOGDIAL_DOWN:
363         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
364                 input_report_rel(jog_dev, REL_WHEEL, -1);
365                 input_sync(jog_dev);
366                 return;
367
368         /* key_dev events */
369         case SONYPI_EVENT_JOGDIAL_PRESSED:
370                 kp.key = BTN_MIDDLE;
371                 kp.dev = jog_dev;
372                 break;
373
374         default:
375                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
376                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
377                         break;
378                 }
379                 if (sony_laptop_input_index[event] != -1) {
380                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
381                         if (kp.key != KEY_UNKNOWN)
382                                 kp.dev = key_dev;
383                 }
384                 break;
385         }
386
387         if (kp.dev) {
388                 input_report_key(kp.dev, kp.key, 1);
389                 /* we emit the scancode so we can always remap the key */
390                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
391                 input_sync(kp.dev);
392
393                 /* schedule key release */
394                 kfifo_in_locked(&sony_laptop_input.fifo,
395                                 (unsigned char *)&kp, sizeof(kp),
396                                 &sony_laptop_input.fifo_lock);
397                 mod_timer(&sony_laptop_input.release_key_timer,
398                           jiffies + msecs_to_jiffies(10));
399         } else
400                 dprintk("unknown input event %.2x\n", event);
401 }
402
403 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
404 {
405         struct input_dev *jog_dev;
406         struct input_dev *key_dev;
407         int i;
408         int error;
409
410         /* don't run again if already initialized */
411         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
412                 return 0;
413
414         /* kfifo */
415         spin_lock_init(&sony_laptop_input.fifo_lock);
416         error = kfifo_alloc(&sony_laptop_input.fifo,
417                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
418         if (error) {
419                 pr_err(DRV_PFX "kfifo_alloc failed\n");
420                 goto err_dec_users;
421         }
422
423         setup_timer(&sony_laptop_input.release_key_timer,
424                     do_sony_laptop_release_key, 0);
425
426         /* input keys */
427         key_dev = input_allocate_device();
428         if (!key_dev) {
429                 error = -ENOMEM;
430                 goto err_free_kfifo;
431         }
432
433         key_dev->name = "Sony Vaio Keys";
434         key_dev->id.bustype = BUS_ISA;
435         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
436         key_dev->dev.parent = &acpi_device->dev;
437
438         /* Initialize the Input Drivers: special keys */
439         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
440
441         __set_bit(EV_KEY, key_dev->evbit);
442         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
443         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
444         key_dev->keycode = &sony_laptop_input_keycode_map;
445         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
446                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
447         __clear_bit(KEY_RESERVED, key_dev->keybit);
448
449         error = input_register_device(key_dev);
450         if (error)
451                 goto err_free_keydev;
452
453         sony_laptop_input.key_dev = key_dev;
454
455         /* jogdial */
456         jog_dev = input_allocate_device();
457         if (!jog_dev) {
458                 error = -ENOMEM;
459                 goto err_unregister_keydev;
460         }
461
462         jog_dev->name = "Sony Vaio Jogdial";
463         jog_dev->id.bustype = BUS_ISA;
464         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
465         key_dev->dev.parent = &acpi_device->dev;
466
467         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
468         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
469
470         error = input_register_device(jog_dev);
471         if (error)
472                 goto err_free_jogdev;
473
474         sony_laptop_input.jog_dev = jog_dev;
475
476         return 0;
477
478 err_free_jogdev:
479         input_free_device(jog_dev);
480
481 err_unregister_keydev:
482         input_unregister_device(key_dev);
483         /* to avoid kref underflow below at input_free_device */
484         key_dev = NULL;
485
486 err_free_keydev:
487         input_free_device(key_dev);
488
489 err_free_kfifo:
490         kfifo_free(&sony_laptop_input.fifo);
491
492 err_dec_users:
493         atomic_dec(&sony_laptop_input.users);
494         return error;
495 }
496
497 static void sony_laptop_remove_input(void)
498 {
499         struct sony_laptop_keypress kp = { NULL };
500
501         /* Cleanup only after the last user has gone */
502         if (!atomic_dec_and_test(&sony_laptop_input.users))
503                 return;
504
505         del_timer_sync(&sony_laptop_input.release_key_timer);
506
507         /*
508          * Generate key-up events for remaining keys. Note that we don't
509          * need locking since nobody is adding new events to the kfifo.
510          */
511         while (kfifo_out(&sony_laptop_input.fifo,
512                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
513                 input_report_key(kp.dev, kp.key, 0);
514                 input_sync(kp.dev);
515         }
516
517         /* destroy input devs */
518         input_unregister_device(sony_laptop_input.key_dev);
519         sony_laptop_input.key_dev = NULL;
520
521         if (sony_laptop_input.jog_dev) {
522                 input_unregister_device(sony_laptop_input.jog_dev);
523                 sony_laptop_input.jog_dev = NULL;
524         }
525
526         kfifo_free(&sony_laptop_input.fifo);
527 }
528
529 /*********** Platform Device ***********/
530
531 static atomic_t sony_pf_users = ATOMIC_INIT(0);
532 static struct platform_driver sony_pf_driver = {
533         .driver = {
534                    .name = "sony-laptop",
535                    .owner = THIS_MODULE,
536                    }
537 };
538 static struct platform_device *sony_pf_device;
539
540 static int sony_pf_add(void)
541 {
542         int ret = 0;
543
544         /* don't run again if already initialized */
545         if (atomic_add_return(1, &sony_pf_users) > 1)
546                 return 0;
547
548         ret = platform_driver_register(&sony_pf_driver);
549         if (ret)
550                 goto out;
551
552         sony_pf_device = platform_device_alloc("sony-laptop", -1);
553         if (!sony_pf_device) {
554                 ret = -ENOMEM;
555                 goto out_platform_registered;
556         }
557
558         ret = platform_device_add(sony_pf_device);
559         if (ret)
560                 goto out_platform_alloced;
561
562         return 0;
563
564       out_platform_alloced:
565         platform_device_put(sony_pf_device);
566         sony_pf_device = NULL;
567       out_platform_registered:
568         platform_driver_unregister(&sony_pf_driver);
569       out:
570         atomic_dec(&sony_pf_users);
571         return ret;
572 }
573
574 static void sony_pf_remove(void)
575 {
576         /* deregister only after the last user has gone */
577         if (!atomic_dec_and_test(&sony_pf_users))
578                 return;
579
580         platform_device_unregister(sony_pf_device);
581         platform_driver_unregister(&sony_pf_driver);
582 }
583
584 /*********** SNC (SNY5001) Device ***********/
585
586 /* the device uses 1-based values, while the backlight subsystem uses
587    0-based values */
588 #define SONY_MAX_BRIGHTNESS     8
589
590 #define SNC_VALIDATE_IN         0
591 #define SNC_VALIDATE_OUT        1
592
593 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
594                               char *);
595 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
596                                const char *, size_t);
597 static int boolean_validate(const int, const int);
598 static int brightness_default_validate(const int, const int);
599
600 struct sony_nc_value {
601         char *name;             /* name of the entry */
602         char **acpiget;         /* names of the ACPI get function */
603         char **acpiset;         /* names of the ACPI set function */
604         int (*validate)(const int, const int);  /* input/output validation */
605         int value;              /* current setting */
606         int valid;              /* Has ever been set */
607         int debug;              /* active only in debug mode ? */
608         struct device_attribute devattr;        /* sysfs attribute */
609 };
610
611 #define SNC_HANDLE_NAMES(_name, _values...) \
612         static char *snc_##_name[] = { _values, NULL }
613
614 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
615         { \
616                 .name           = __stringify(_name), \
617                 .acpiget        = _getters, \
618                 .acpiset        = _setters, \
619                 .validate       = _validate, \
620                 .debug          = _debug, \
621                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
622         }
623
624 #define SNC_HANDLE_NULL { .name = NULL }
625
626 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
627
628 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
629 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
630
631 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
632 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
633
634 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
635 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
636
637 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
638 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
639
640 SNC_HANDLE_NAMES(lidstate_get, "GLID");
641
642 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
643 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
644
645 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
646 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
647
648 SNC_HANDLE_NAMES(PID_get, "GPID");
649
650 SNC_HANDLE_NAMES(CTR_get, "GCTR");
651 SNC_HANDLE_NAMES(CTR_set, "SCTR");
652
653 SNC_HANDLE_NAMES(PCR_get, "GPCR");
654 SNC_HANDLE_NAMES(PCR_set, "SPCR");
655
656 SNC_HANDLE_NAMES(CMI_get, "GCMI");
657 SNC_HANDLE_NAMES(CMI_set, "SCMI");
658
659 static struct sony_nc_value sony_nc_values[] = {
660         SNC_HANDLE(brightness_default, snc_brightness_def_get,
661                         snc_brightness_def_set, brightness_default_validate, 0),
662         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
663         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
664         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
665                         boolean_validate, 0),
666         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
667                         boolean_validate, 1),
668         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
669                         boolean_validate, 0),
670         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
671                         boolean_validate, 0),
672         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
673                         boolean_validate, 0),
674         /* unknown methods */
675         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
676         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
677         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
678         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
679         SNC_HANDLE_NULL
680 };
681
682 static acpi_handle sony_nc_acpi_handle;
683 static struct acpi_device *sony_nc_acpi_device = NULL;
684
685 /*
686  * acpi_evaluate_object wrappers
687  */
688 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
689 {
690         struct acpi_buffer output;
691         union acpi_object out_obj;
692         acpi_status status;
693
694         output.length = sizeof(out_obj);
695         output.pointer = &out_obj;
696
697         status = acpi_evaluate_object(handle, name, NULL, &output);
698         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
699                 *result = out_obj.integer.value;
700                 return 0;
701         }
702
703         pr_warn(DRV_PFX "acpi_callreadfunc failed\n");
704
705         return -1;
706 }
707
708 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
709                             int *result)
710 {
711         struct acpi_object_list params;
712         union acpi_object in_obj;
713         struct acpi_buffer output;
714         union acpi_object out_obj;
715         acpi_status status;
716
717         params.count = 1;
718         params.pointer = &in_obj;
719         in_obj.type = ACPI_TYPE_INTEGER;
720         in_obj.integer.value = value;
721
722         output.length = sizeof(out_obj);
723         output.pointer = &out_obj;
724
725         status = acpi_evaluate_object(handle, name, &params, &output);
726         if (status == AE_OK) {
727                 if (result != NULL) {
728                         if (out_obj.type != ACPI_TYPE_INTEGER) {
729                                 pr_warn(DRV_PFX "acpi_evaluate_object bad "
730                                        "return type\n");
731                                 return -1;
732                         }
733                         *result = out_obj.integer.value;
734                 }
735                 return 0;
736         }
737
738         pr_warn(DRV_PFX "acpi_evaluate_object failed\n");
739
740         return -1;
741 }
742
743 struct sony_nc_handles {
744         u16 cap[0x10];
745         struct device_attribute devattr;
746 };
747
748 static struct sony_nc_handles *handles;
749
750 static ssize_t sony_nc_handles_show(struct device *dev,
751                 struct device_attribute *attr, char *buffer)
752 {
753         ssize_t len = 0;
754         int i;
755
756         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
757                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
758                                 handles->cap[i]);
759         }
760         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
761
762         return len;
763 }
764
765 static int sony_nc_handles_setup(struct platform_device *pd)
766 {
767         int i;
768         int result;
769
770         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
771         if (!handles)
772                 return -ENOMEM;
773
774         sysfs_attr_init(&handles->devattr.attr);
775         handles->devattr.attr.name = "handles";
776         handles->devattr.attr.mode = S_IRUGO;
777         handles->devattr.show = sony_nc_handles_show;
778
779         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
780                 if (!acpi_callsetfunc(sony_nc_acpi_handle,
781                                         "SN00", i + 0x20, &result)) {
782                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
783                                         result, i);
784                         handles->cap[i] = result;
785                 }
786         }
787
788         /* allow reading capabilities via sysfs */
789         if (device_create_file(&pd->dev, &handles->devattr)) {
790                 kfree(handles);
791                 handles = NULL;
792                 return -1;
793         }
794
795         return 0;
796 }
797
798 static int sony_nc_handles_cleanup(struct platform_device *pd)
799 {
800         if (handles) {
801                 device_remove_file(&pd->dev, &handles->devattr);
802                 kfree(handles);
803                 handles = NULL;
804         }
805         return 0;
806 }
807
808 static int sony_find_snc_handle(int handle)
809 {
810         int i;
811
812         /* not initialized yet, return early */
813         if (!handles)
814                 return -1;
815
816         for (i = 0; i < 0x10; i++) {
817                 if (handles->cap[i] == handle) {
818                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
819                                         handle, i);
820                         return i;
821                 }
822         }
823         dprintk("handle 0x%.4x not found\n", handle);
824         return -1;
825 }
826
827 static int sony_call_snc_handle(int handle, int argument, int *result)
828 {
829         int ret = 0;
830         int offset = sony_find_snc_handle(handle);
831
832         if (offset < 0)
833                 return -1;
834
835         ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
836                         result);
837         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
838                         *result);
839         return ret;
840 }
841
842 /*
843  * sony_nc_values input/output validate functions
844  */
845
846 /* brightness_default_validate:
847  *
848  * manipulate input output values to keep consistency with the
849  * backlight framework for which brightness values are 0-based.
850  */
851 static int brightness_default_validate(const int direction, const int value)
852 {
853         switch (direction) {
854                 case SNC_VALIDATE_OUT:
855                         return value - 1;
856                 case SNC_VALIDATE_IN:
857                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
858                                 return value + 1;
859         }
860         return -EINVAL;
861 }
862
863 /* boolean_validate:
864  *
865  * on input validate boolean values 0/1, on output just pass the
866  * received value.
867  */
868 static int boolean_validate(const int direction, const int value)
869 {
870         if (direction == SNC_VALIDATE_IN) {
871                 if (value != 0 && value != 1)
872                         return -EINVAL;
873         }
874         return value;
875 }
876
877 /*
878  * Sysfs show/store common to all sony_nc_values
879  */
880 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
881                               char *buffer)
882 {
883         int value;
884         struct sony_nc_value *item =
885             container_of(attr, struct sony_nc_value, devattr);
886
887         if (!*item->acpiget)
888                 return -EIO;
889
890         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
891                 return -EIO;
892
893         if (item->validate)
894                 value = item->validate(SNC_VALIDATE_OUT, value);
895
896         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
897 }
898
899 static ssize_t sony_nc_sysfs_store(struct device *dev,
900                                struct device_attribute *attr,
901                                const char *buffer, size_t count)
902 {
903         int value;
904         struct sony_nc_value *item =
905             container_of(attr, struct sony_nc_value, devattr);
906
907         if (!item->acpiset)
908                 return -EIO;
909
910         if (count > 31)
911                 return -EINVAL;
912
913         value = simple_strtoul(buffer, NULL, 10);
914
915         if (item->validate)
916                 value = item->validate(SNC_VALIDATE_IN, value);
917
918         if (value < 0)
919                 return value;
920
921         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
922                 return -EIO;
923         item->value = value;
924         item->valid = 1;
925         return count;
926 }
927
928
929 /*
930  * Backlight device
931  */
932 static int sony_backlight_update_status(struct backlight_device *bd)
933 {
934         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
935                                 bd->props.brightness + 1, NULL);
936 }
937
938 static int sony_backlight_get_brightness(struct backlight_device *bd)
939 {
940         int value;
941
942         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
943                 return 0;
944         /* brightness levels are 1-based, while backlight ones are 0-based */
945         return value - 1;
946 }
947
948 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
949 {
950         int result;
951         int *handle = (int *)bl_get_data(bd);
952
953         sony_call_snc_handle(*handle, 0x0200, &result);
954
955         return result & 0xff;
956 }
957
958 static int sony_nc_update_status_ng(struct backlight_device *bd)
959 {
960         int value, result;
961         int *handle = (int *)bl_get_data(bd);
962
963         value = bd->props.brightness;
964         sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result);
965
966         return sony_nc_get_brightness_ng(bd);
967 }
968
969 static const struct backlight_ops sony_backlight_ops = {
970         .options = BL_CORE_SUSPENDRESUME,
971         .update_status = sony_backlight_update_status,
972         .get_brightness = sony_backlight_get_brightness,
973 };
974 static const struct backlight_ops sony_backlight_ng_ops = {
975         .options = BL_CORE_SUSPENDRESUME,
976         .update_status = sony_nc_update_status_ng,
977         .get_brightness = sony_nc_get_brightness_ng,
978 };
979 static int backlight_ng_handle;
980 static struct backlight_device *sony_backlight_device;
981
982 /*
983  * New SNC-only Vaios event mapping to driver known keys
984  */
985 struct sony_nc_event {
986         u8      data;
987         u8      event;
988 };
989
990 static struct sony_nc_event sony_100_events[] = {
991         { 0x90, SONYPI_EVENT_PKEY_P1 },
992         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
993         { 0x91, SONYPI_EVENT_PKEY_P2 },
994         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
995         { 0x81, SONYPI_EVENT_FNKEY_F1 },
996         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
997         { 0x82, SONYPI_EVENT_FNKEY_F2 },
998         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
999         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1000         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1001         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1002         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1003         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1004         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1005         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1006         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1007         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1008         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1009         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1010         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1011         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1012         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1013         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1014         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1015         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1016         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1017         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1018         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1019         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1020         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1021         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1022         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1023         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1024         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1025         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1026         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1027         { 0, 0 },
1028 };
1029
1030 static struct sony_nc_event sony_127_events[] = {
1031         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1032         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1033         { 0x82, SONYPI_EVENT_PKEY_P1 },
1034         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1035         { 0x83, SONYPI_EVENT_PKEY_P2 },
1036         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1037         { 0x84, SONYPI_EVENT_PKEY_P3 },
1038         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1039         { 0x85, SONYPI_EVENT_PKEY_P4 },
1040         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1041         { 0x86, SONYPI_EVENT_PKEY_P5 },
1042         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1043         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1044         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1045         { 0, 0 },
1046 };
1047
1048 /*
1049  * ACPI callbacks
1050  */
1051 static void sony_nc_notify(struct acpi_device *device, u32 event)
1052 {
1053         u32 ev = event;
1054
1055         if (ev >= 0x90) {
1056                 /* New-style event */
1057                 int result;
1058                 int key_handle = 0;
1059                 ev -= 0x90;
1060
1061                 if (sony_find_snc_handle(0x100) == ev)
1062                         key_handle = 0x100;
1063                 if (sony_find_snc_handle(0x127) == ev)
1064                         key_handle = 0x127;
1065
1066                 if (key_handle) {
1067                         struct sony_nc_event *key_event;
1068
1069                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1070                                 dprintk("sony_nc_notify, unable to decode"
1071                                         " event 0x%.2x 0x%.2x\n", key_handle,
1072                                         ev);
1073                                 /* restore the original event */
1074                                 ev = event;
1075                         } else {
1076                                 ev = result & 0xFF;
1077
1078                                 if (key_handle == 0x100)
1079                                         key_event = sony_100_events;
1080                                 else
1081                                         key_event = sony_127_events;
1082
1083                                 for (; key_event->data; key_event++) {
1084                                         if (key_event->data == ev) {
1085                                                 ev = key_event->event;
1086                                                 break;
1087                                         }
1088                                 }
1089
1090                                 if (!key_event->data)
1091                                         pr_info(DRV_PFX
1092                                                         "Unknown event: 0x%x 0x%x\n",
1093                                                         key_handle,
1094                                                         ev);
1095                                 else
1096                                         sony_laptop_report_input_event(ev);
1097                         }
1098                 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1099                         sony_nc_rfkill_update();
1100                         return;
1101                 }
1102         } else
1103                 sony_laptop_report_input_event(ev);
1104
1105         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1106         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1107 }
1108
1109 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1110                                       void *context, void **return_value)
1111 {
1112         struct acpi_device_info *info;
1113
1114         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1115                 pr_warn(DRV_PFX "method: name: %4.4s, args %X\n",
1116                         (char *)&info->name, info->param_count);
1117
1118                 kfree(info);
1119         }
1120
1121         return AE_OK;
1122 }
1123
1124 /*
1125  * ACPI device
1126  */
1127 static int sony_nc_function_setup(struct acpi_device *device)
1128 {
1129         int result;
1130
1131         /* Enable all events */
1132         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1133
1134         /* Setup hotkeys */
1135         sony_call_snc_handle(0x0100, 0, &result);
1136         sony_call_snc_handle(0x0101, 0, &result);
1137         sony_call_snc_handle(0x0102, 0x100, &result);
1138         sony_call_snc_handle(0x0127, 0, &result);
1139
1140         return 0;
1141 }
1142
1143 static int sony_nc_resume(struct acpi_device *device)
1144 {
1145         struct sony_nc_value *item;
1146         acpi_handle handle;
1147
1148         for (item = sony_nc_values; item->name; item++) {
1149                 int ret;
1150
1151                 if (!item->valid)
1152                         continue;
1153                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1154                                        item->value, NULL);
1155                 if (ret < 0) {
1156                         pr_err(DRV_PFX "%s: %d\n", __func__, ret);
1157                         break;
1158                 }
1159         }
1160
1161         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1162                                          &handle))) {
1163                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1164                         dprintk("ECON Method failed\n");
1165         }
1166
1167         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1168                                          &handle))) {
1169                 dprintk("Doing SNC setup\n");
1170                 sony_nc_function_setup(device);
1171         }
1172
1173         /* re-read rfkill state */
1174         sony_nc_rfkill_update();
1175
1176         return 0;
1177 }
1178
1179 static void sony_nc_rfkill_cleanup(void)
1180 {
1181         int i;
1182
1183         for (i = 0; i < N_SONY_RFKILL; i++) {
1184                 if (sony_rfkill_devices[i]) {
1185                         rfkill_unregister(sony_rfkill_devices[i]);
1186                         rfkill_destroy(sony_rfkill_devices[i]);
1187                 }
1188         }
1189 }
1190
1191 static int sony_nc_rfkill_set(void *data, bool blocked)
1192 {
1193         int result;
1194         int argument = sony_rfkill_address[(long) data] + 0x100;
1195
1196         if (!blocked)
1197                 argument |= 0xff0000;
1198
1199         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1200 }
1201
1202 static const struct rfkill_ops sony_rfkill_ops = {
1203         .set_block = sony_nc_rfkill_set,
1204 };
1205
1206 static int sony_nc_setup_rfkill(struct acpi_device *device,
1207                                 enum sony_nc_rfkill nc_type)
1208 {
1209         int err = 0;
1210         struct rfkill *rfk;
1211         enum rfkill_type type;
1212         const char *name;
1213         int result;
1214         bool hwblock;
1215
1216         switch (nc_type) {
1217         case SONY_WIFI:
1218                 type = RFKILL_TYPE_WLAN;
1219                 name = "sony-wifi";
1220                 break;
1221         case SONY_BLUETOOTH:
1222                 type = RFKILL_TYPE_BLUETOOTH;
1223                 name = "sony-bluetooth";
1224                 break;
1225         case SONY_WWAN:
1226                 type = RFKILL_TYPE_WWAN;
1227                 name = "sony-wwan";
1228                 break;
1229         case SONY_WIMAX:
1230                 type = RFKILL_TYPE_WIMAX;
1231                 name = "sony-wimax";
1232                 break;
1233         default:
1234                 return -EINVAL;
1235         }
1236
1237         rfk = rfkill_alloc(name, &device->dev, type,
1238                            &sony_rfkill_ops, (void *)nc_type);
1239         if (!rfk)
1240                 return -ENOMEM;
1241
1242         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1243         hwblock = !(result & 0x1);
1244         rfkill_set_hw_state(rfk, hwblock);
1245
1246         err = rfkill_register(rfk);
1247         if (err) {
1248                 rfkill_destroy(rfk);
1249                 return err;
1250         }
1251         sony_rfkill_devices[nc_type] = rfk;
1252         return err;
1253 }
1254
1255 static void sony_nc_rfkill_update(void)
1256 {
1257         enum sony_nc_rfkill i;
1258         int result;
1259         bool hwblock;
1260
1261         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1262         hwblock = !(result & 0x1);
1263
1264         for (i = 0; i < N_SONY_RFKILL; i++) {
1265                 int argument = sony_rfkill_address[i];
1266
1267                 if (!sony_rfkill_devices[i])
1268                         continue;
1269
1270                 if (hwblock) {
1271                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1272                                 /* we already know we're blocked */
1273                         }
1274                         continue;
1275                 }
1276
1277                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1278                 rfkill_set_states(sony_rfkill_devices[i],
1279                                   !(result & 0xf), false);
1280         }
1281 }
1282
1283 static void sony_nc_rfkill_setup(struct acpi_device *device)
1284 {
1285         int offset;
1286         u8 dev_code, i;
1287         acpi_status status;
1288         struct acpi_object_list params;
1289         union acpi_object in_obj;
1290         union acpi_object *device_enum;
1291         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1292
1293         offset = sony_find_snc_handle(0x124);
1294         if (offset == -1) {
1295                 offset = sony_find_snc_handle(0x135);
1296                 if (offset == -1)
1297                         return;
1298                 else
1299                         sony_rfkill_handle = 0x135;
1300         } else
1301                 sony_rfkill_handle = 0x124;
1302         dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1303
1304         /* need to read the whole buffer returned by the acpi call to SN06
1305          * here otherwise we may miss some features
1306          */
1307         params.count = 1;
1308         params.pointer = &in_obj;
1309         in_obj.type = ACPI_TYPE_INTEGER;
1310         in_obj.integer.value = offset;
1311         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1312                         &buffer);
1313         if (ACPI_FAILURE(status)) {
1314                 dprintk("Radio device enumeration failed\n");
1315                 return;
1316         }
1317
1318         device_enum = (union acpi_object *) buffer.pointer;
1319         if (!device_enum) {
1320                 pr_err(DRV_PFX "No SN06 return object.");
1321                 goto out_no_enum;
1322         }
1323         if (device_enum->type != ACPI_TYPE_BUFFER) {
1324                 pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
1325                                 device_enum->type);
1326                 goto out_no_enum;
1327         }
1328
1329         /* the buffer is filled with magic numbers describing the devices
1330          * available, 0xff terminates the enumeration
1331          */
1332         for (i = 0; i < device_enum->buffer.length; i++) {
1333
1334                 dev_code = *(device_enum->buffer.pointer + i);
1335                 if (dev_code == 0xff)
1336                         break;
1337
1338                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1339
1340                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1341                         sony_nc_setup_rfkill(device, SONY_WIFI);
1342
1343                 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1344                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1345
1346                 if ((0xf0 & dev_code) == 0x20 &&
1347                                 !sony_rfkill_devices[SONY_WWAN])
1348                         sony_nc_setup_rfkill(device, SONY_WWAN);
1349
1350                 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1351                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1352         }
1353
1354 out_no_enum:
1355         kfree(buffer.pointer);
1356         return;
1357 }
1358
1359 /* Keyboard backlight feature */
1360 #define KBDBL_HANDLER   0x137
1361 #define KBDBL_PRESENT   0xB00
1362 #define SET_MODE        0xC00
1363 #define SET_TIMEOUT     0xE00
1364
1365 struct kbd_backlight {
1366         int mode;
1367         int timeout;
1368         struct device_attribute mode_attr;
1369         struct device_attribute timeout_attr;
1370 };
1371
1372 static struct kbd_backlight *kbdbl_handle;
1373
1374 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1375 {
1376         int result;
1377
1378         if (value > 1)
1379                 return -EINVAL;
1380
1381         if (sony_call_snc_handle(KBDBL_HANDLER,
1382                                 (value << 0x10) | SET_MODE, &result))
1383                 return -EIO;
1384
1385         kbdbl_handle->mode = value;
1386
1387         return 0;
1388 }
1389
1390 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1391                 struct device_attribute *attr,
1392                 const char *buffer, size_t count)
1393 {
1394         int ret = 0;
1395         unsigned long value;
1396
1397         if (count > 31)
1398                 return -EINVAL;
1399
1400         if (strict_strtoul(buffer, 10, &value))
1401                 return -EINVAL;
1402
1403         ret = __sony_nc_kbd_backlight_mode_set(value);
1404         if (ret < 0)
1405                 return ret;
1406
1407         return count;
1408 }
1409
1410 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1411                 struct device_attribute *attr, char *buffer)
1412 {
1413         ssize_t count = 0;
1414         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1415         return count;
1416 }
1417
1418 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1419 {
1420         int result;
1421
1422         if (value > 3)
1423                 return -EINVAL;
1424
1425         if (sony_call_snc_handle(KBDBL_HANDLER,
1426                                 (value << 0x10) | SET_TIMEOUT, &result))
1427                 return -EIO;
1428
1429         kbdbl_handle->timeout = value;
1430
1431         return 0;
1432 }
1433
1434 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1435                 struct device_attribute *attr,
1436                 const char *buffer, size_t count)
1437 {
1438         int ret = 0;
1439         unsigned long value;
1440
1441         if (count > 31)
1442                 return -EINVAL;
1443
1444         if (strict_strtoul(buffer, 10, &value))
1445                 return -EINVAL;
1446
1447         ret = __sony_nc_kbd_backlight_timeout_set(value);
1448         if (ret < 0)
1449                 return ret;
1450
1451         return count;
1452 }
1453
1454 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1455                 struct device_attribute *attr, char *buffer)
1456 {
1457         ssize_t count = 0;
1458         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1459         return count;
1460 }
1461
1462 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1463 {
1464         int result;
1465
1466         if (sony_call_snc_handle(0x137, KBDBL_PRESENT, &result))
1467                 return 0;
1468         if (!(result & 0x02))
1469                 return 0;
1470
1471         kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1472         if (!kbdbl_handle)
1473                 return -ENOMEM;
1474
1475         sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1476         kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1477         kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1478         kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1479         kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1480
1481         sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1482         kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1483         kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1484         kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1485         kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1486
1487         if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1488                 goto outkzalloc;
1489
1490         if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1491                 goto outmode;
1492
1493         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1494         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1495
1496         return 0;
1497
1498 outmode:
1499         device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1500 outkzalloc:
1501         kfree(kbdbl_handle);
1502         kbdbl_handle = NULL;
1503         return -1;
1504 }
1505
1506 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1507 {
1508         if (kbdbl_handle) {
1509                 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1510                 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1511                 kfree(kbdbl_handle);
1512         }
1513         return 0;
1514 }
1515
1516 static void sony_nc_backlight_setup(void)
1517 {
1518         acpi_handle unused;
1519         int max_brightness = 0;
1520         const struct backlight_ops *ops = NULL;
1521         struct backlight_properties props;
1522
1523         if (sony_find_snc_handle(0x12f) != -1) {
1524                 backlight_ng_handle = 0x12f;
1525                 ops = &sony_backlight_ng_ops;
1526                 max_brightness = 0xff;
1527
1528         } else if (sony_find_snc_handle(0x137) != -1) {
1529                 backlight_ng_handle = 0x137;
1530                 ops = &sony_backlight_ng_ops;
1531                 max_brightness = 0xff;
1532
1533         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1534                                                 &unused))) {
1535                 ops = &sony_backlight_ops;
1536                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1537
1538         } else
1539                 return;
1540
1541         memset(&props, 0, sizeof(struct backlight_properties));
1542         props.type = BACKLIGHT_PLATFORM;
1543         props.max_brightness = max_brightness;
1544         sony_backlight_device = backlight_device_register("sony", NULL,
1545                                                           &backlight_ng_handle,
1546                                                           ops, &props);
1547
1548         if (IS_ERR(sony_backlight_device)) {
1549                 pr_warning(DRV_PFX "unable to register backlight device\n");
1550                 sony_backlight_device = NULL;
1551         } else
1552                 sony_backlight_device->props.brightness =
1553                     ops->get_brightness(sony_backlight_device);
1554 }
1555
1556 static void sony_nc_backlight_cleanup(void)
1557 {
1558         if (sony_backlight_device)
1559                 backlight_device_unregister(sony_backlight_device);
1560 }
1561
1562 static int sony_nc_add(struct acpi_device *device)
1563 {
1564         acpi_status status;
1565         int result = 0;
1566         acpi_handle handle;
1567         struct sony_nc_value *item;
1568
1569         pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME,
1570                         SONY_LAPTOP_DRIVER_VERSION);
1571
1572         sony_nc_acpi_device = device;
1573         strcpy(acpi_device_class(device), "sony/hotkey");
1574
1575         sony_nc_acpi_handle = device->handle;
1576
1577         /* read device status */
1578         result = acpi_bus_get_status(device);
1579         /* bail IFF the above call was successful and the device is not present */
1580         if (!result && !device->status.present) {
1581                 dprintk("Device not present\n");
1582                 result = -ENODEV;
1583                 goto outwalk;
1584         }
1585
1586         result = sony_pf_add();
1587         if (result)
1588                 goto outpresent;
1589
1590         if (debug) {
1591                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1592                                 sony_nc_acpi_handle, 1, sony_walk_callback,
1593                                 NULL, NULL, NULL);
1594                 if (ACPI_FAILURE(status)) {
1595                         pr_warn(DRV_PFX "unable to walk acpi resources\n");
1596                         result = -ENODEV;
1597                         goto outpresent;
1598                 }
1599         }
1600
1601         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1602                                          &handle))) {
1603                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1604                         dprintk("ECON Method failed\n");
1605         }
1606
1607         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1608                                          &handle))) {
1609                 dprintk("Doing SNC setup\n");
1610                 result = sony_nc_handles_setup(sony_pf_device);
1611                 if (result)
1612                         goto outpresent;
1613                 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1614                 if (result)
1615                         goto outsnc;
1616                 sony_nc_function_setup(device);
1617                 sony_nc_rfkill_setup(device);
1618         }
1619
1620         /* setup input devices and helper fifo */
1621         result = sony_laptop_setup_input(device);
1622         if (result) {
1623                 pr_err(DRV_PFX "Unable to create input devices.\n");
1624                 goto outkbdbacklight;
1625         }
1626
1627         if (acpi_video_backlight_support()) {
1628                 pr_info(DRV_PFX "brightness ignored, must be "
1629                        "controlled by ACPI video driver\n");
1630         } else {
1631                 sony_nc_backlight_setup();
1632         }
1633
1634         /* create sony_pf sysfs attributes related to the SNC device */
1635         for (item = sony_nc_values; item->name; ++item) {
1636
1637                 if (!debug && item->debug)
1638                         continue;
1639
1640                 /* find the available acpiget as described in the DSDT */
1641                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1642                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1643                                                          *item->acpiget,
1644                                                          &handle))) {
1645                                 dprintk("Found %s getter: %s\n",
1646                                                 item->name, *item->acpiget);
1647                                 item->devattr.attr.mode |= S_IRUGO;
1648                                 break;
1649                         }
1650                 }
1651
1652                 /* find the available acpiset as described in the DSDT */
1653                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1654                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1655                                                          *item->acpiset,
1656                                                          &handle))) {
1657                                 dprintk("Found %s setter: %s\n",
1658                                                 item->name, *item->acpiset);
1659                                 item->devattr.attr.mode |= S_IWUSR;
1660                                 break;
1661                         }
1662                 }
1663
1664                 if (item->devattr.attr.mode != 0) {
1665                         result =
1666                             device_create_file(&sony_pf_device->dev,
1667                                                &item->devattr);
1668                         if (result)
1669                                 goto out_sysfs;
1670                 }
1671         }
1672
1673         return 0;
1674
1675       out_sysfs:
1676         for (item = sony_nc_values; item->name; ++item) {
1677                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1678         }
1679         sony_nc_backlight_cleanup();
1680
1681         sony_laptop_remove_input();
1682
1683       outkbdbacklight:
1684         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1685
1686       outsnc:
1687         sony_nc_handles_cleanup(sony_pf_device);
1688
1689       outpresent:
1690         sony_pf_remove();
1691
1692       outwalk:
1693         sony_nc_rfkill_cleanup();
1694         return result;
1695 }
1696
1697 static int sony_nc_remove(struct acpi_device *device, int type)
1698 {
1699         struct sony_nc_value *item;
1700
1701         sony_nc_backlight_cleanup();
1702
1703         sony_nc_acpi_device = NULL;
1704
1705         for (item = sony_nc_values; item->name; ++item) {
1706                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1707         }
1708
1709         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1710         sony_nc_handles_cleanup(sony_pf_device);
1711         sony_pf_remove();
1712         sony_laptop_remove_input();
1713         sony_nc_rfkill_cleanup();
1714         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1715
1716         return 0;
1717 }
1718
1719 static const struct acpi_device_id sony_device_ids[] = {
1720         {SONY_NC_HID, 0},
1721         {SONY_PIC_HID, 0},
1722         {"", 0},
1723 };
1724 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1725
1726 static const struct acpi_device_id sony_nc_device_ids[] = {
1727         {SONY_NC_HID, 0},
1728         {"", 0},
1729 };
1730
1731 static struct acpi_driver sony_nc_driver = {
1732         .name = SONY_NC_DRIVER_NAME,
1733         .class = SONY_NC_CLASS,
1734         .ids = sony_nc_device_ids,
1735         .owner = THIS_MODULE,
1736         .ops = {
1737                 .add = sony_nc_add,
1738                 .remove = sony_nc_remove,
1739                 .resume = sony_nc_resume,
1740                 .notify = sony_nc_notify,
1741                 },
1742 };
1743
1744 /*********** SPIC (SNY6001) Device ***********/
1745
1746 #define SONYPI_DEVICE_TYPE1     0x00000001
1747 #define SONYPI_DEVICE_TYPE2     0x00000002
1748 #define SONYPI_DEVICE_TYPE3     0x00000004
1749
1750 #define SONYPI_TYPE1_OFFSET     0x04
1751 #define SONYPI_TYPE2_OFFSET     0x12
1752 #define SONYPI_TYPE3_OFFSET     0x12
1753
1754 struct sony_pic_ioport {
1755         struct acpi_resource_io io1;
1756         struct acpi_resource_io io2;
1757         struct list_head        list;
1758 };
1759
1760 struct sony_pic_irq {
1761         struct acpi_resource_irq        irq;
1762         struct list_head                list;
1763 };
1764
1765 struct sonypi_eventtypes {
1766         u8                      data;
1767         unsigned long           mask;
1768         struct sonypi_event     *events;
1769 };
1770
1771 struct sony_pic_dev {
1772         struct acpi_device              *acpi_dev;
1773         struct sony_pic_irq             *cur_irq;
1774         struct sony_pic_ioport          *cur_ioport;
1775         struct list_head                interrupts;
1776         struct list_head                ioports;
1777         struct mutex                    lock;
1778         struct sonypi_eventtypes        *event_types;
1779         int                             (*handle_irq)(const u8, const u8);
1780         int                             model;
1781         u16                             evport_offset;
1782         u8                              camera_power;
1783         u8                              bluetooth_power;
1784         u8                              wwan_power;
1785 };
1786
1787 static struct sony_pic_dev spic_dev = {
1788         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1789         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1790 };
1791
1792 static int spic_drv_registered;
1793
1794 /* Event masks */
1795 #define SONYPI_JOGGER_MASK                      0x00000001
1796 #define SONYPI_CAPTURE_MASK                     0x00000002
1797 #define SONYPI_FNKEY_MASK                       0x00000004
1798 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1799 #define SONYPI_PKEY_MASK                        0x00000010
1800 #define SONYPI_BACK_MASK                        0x00000020
1801 #define SONYPI_HELP_MASK                        0x00000040
1802 #define SONYPI_LID_MASK                         0x00000080
1803 #define SONYPI_ZOOM_MASK                        0x00000100
1804 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1805 #define SONYPI_MEYE_MASK                        0x00000400
1806 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1807 #define SONYPI_BATTERY_MASK                     0x00001000
1808 #define SONYPI_WIRELESS_MASK                    0x00002000
1809
1810 struct sonypi_event {
1811         u8      data;
1812         u8      event;
1813 };
1814
1815 /* The set of possible button release events */
1816 static struct sonypi_event sonypi_releaseev[] = {
1817         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1818         { 0, 0 }
1819 };
1820
1821 /* The set of possible jogger events  */
1822 static struct sonypi_event sonypi_joggerev[] = {
1823         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1824         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1825         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1826         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1827         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1828         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1829         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1830         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1831         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1832         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1833         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1834         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1835         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1836         { 0, 0 }
1837 };
1838
1839 /* The set of possible capture button events */
1840 static struct sonypi_event sonypi_captureev[] = {
1841         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1842         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1843         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1844         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1845         { 0, 0 }
1846 };
1847
1848 /* The set of possible fnkeys events */
1849 static struct sonypi_event sonypi_fnkeyev[] = {
1850         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1851         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1852         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1853         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1854         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1855         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1856         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1857         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1858         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1859         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1860         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1861         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1862         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1863         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1864         { 0x21, SONYPI_EVENT_FNKEY_1 },
1865         { 0x22, SONYPI_EVENT_FNKEY_2 },
1866         { 0x31, SONYPI_EVENT_FNKEY_D },
1867         { 0x32, SONYPI_EVENT_FNKEY_E },
1868         { 0x33, SONYPI_EVENT_FNKEY_F },
1869         { 0x34, SONYPI_EVENT_FNKEY_S },
1870         { 0x35, SONYPI_EVENT_FNKEY_B },
1871         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1872         { 0, 0 }
1873 };
1874
1875 /* The set of possible program key events */
1876 static struct sonypi_event sonypi_pkeyev[] = {
1877         { 0x01, SONYPI_EVENT_PKEY_P1 },
1878         { 0x02, SONYPI_EVENT_PKEY_P2 },
1879         { 0x04, SONYPI_EVENT_PKEY_P3 },
1880         { 0x20, SONYPI_EVENT_PKEY_P1 },
1881         { 0, 0 }
1882 };
1883
1884 /* The set of possible bluetooth events */
1885 static struct sonypi_event sonypi_blueev[] = {
1886         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1887         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1888         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1889         { 0, 0 }
1890 };
1891
1892 /* The set of possible wireless events */
1893 static struct sonypi_event sonypi_wlessev[] = {
1894         { 0x59, SONYPI_EVENT_IGNORE },
1895         { 0x5a, SONYPI_EVENT_IGNORE },
1896         { 0, 0 }
1897 };
1898
1899 /* The set of possible back button events */
1900 static struct sonypi_event sonypi_backev[] = {
1901         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1902         { 0, 0 }
1903 };
1904
1905 /* The set of possible help button events */
1906 static struct sonypi_event sonypi_helpev[] = {
1907         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1908         { 0, 0 }
1909 };
1910
1911
1912 /* The set of possible lid events */
1913 static struct sonypi_event sonypi_lidev[] = {
1914         { 0x51, SONYPI_EVENT_LID_CLOSED },
1915         { 0x50, SONYPI_EVENT_LID_OPENED },
1916         { 0, 0 }
1917 };
1918
1919 /* The set of possible zoom events */
1920 static struct sonypi_event sonypi_zoomev[] = {
1921         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1922         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1923         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1924         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1925         { 0, 0 }
1926 };
1927
1928 /* The set of possible thumbphrase events */
1929 static struct sonypi_event sonypi_thumbphraseev[] = {
1930         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1931         { 0, 0 }
1932 };
1933
1934 /* The set of possible motioneye camera events */
1935 static struct sonypi_event sonypi_meyeev[] = {
1936         { 0x00, SONYPI_EVENT_MEYE_FACE },
1937         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1938         { 0, 0 }
1939 };
1940
1941 /* The set of possible memorystick events */
1942 static struct sonypi_event sonypi_memorystickev[] = {
1943         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1944         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1945         { 0, 0 }
1946 };
1947
1948 /* The set of possible battery events */
1949 static struct sonypi_event sonypi_batteryev[] = {
1950         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1951         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1952         { 0, 0 }
1953 };
1954
1955 /* The set of possible volume events */
1956 static struct sonypi_event sonypi_volumeev[] = {
1957         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1958         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1959         { 0, 0 }
1960 };
1961
1962 /* The set of possible brightness events */
1963 static struct sonypi_event sonypi_brightnessev[] = {
1964         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1965         { 0, 0 }
1966 };
1967
1968 static struct sonypi_eventtypes type1_events[] = {
1969         { 0, 0xffffffff, sonypi_releaseev },
1970         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1971         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1972         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1973         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1974         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1975         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1976         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1977         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1978         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1979         { 0 },
1980 };
1981 static struct sonypi_eventtypes type2_events[] = {
1982         { 0, 0xffffffff, sonypi_releaseev },
1983         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1984         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1985         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1986         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1987         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1988         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1989         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1990         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1991         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1992         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1993         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1994         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1995         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1996         { 0 },
1997 };
1998 static struct sonypi_eventtypes type3_events[] = {
1999         { 0, 0xffffffff, sonypi_releaseev },
2000         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2001         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
2002         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2003         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2004         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2005         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2006         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2007         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2008         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2009         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2010         { 0 },
2011 };
2012
2013 /* low level spic calls */
2014 #define ITERATIONS_LONG         10000
2015 #define ITERATIONS_SHORT        10
2016 #define wait_on_command(command, iterations) {                          \
2017         unsigned int n = iterations;                                    \
2018         while (--n && (command))                                        \
2019                 udelay(1);                                              \
2020         if (!n)                                                         \
2021                 dprintk("command failed at %s : %s (line %d)\n",        \
2022                                 __FILE__, __func__, __LINE__);  \
2023 }
2024
2025 static u8 sony_pic_call1(u8 dev)
2026 {
2027         u8 v1, v2;
2028
2029         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2030                         ITERATIONS_LONG);
2031         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2032         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2033         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2034         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2035         return v2;
2036 }
2037
2038 static u8 sony_pic_call2(u8 dev, u8 fn)
2039 {
2040         u8 v1;
2041
2042         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2043                         ITERATIONS_LONG);
2044         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2045         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2046                         ITERATIONS_LONG);
2047         outb(fn, spic_dev.cur_ioport->io1.minimum);
2048         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2049         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2050         return v1;
2051 }
2052
2053 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2054 {
2055         u8 v1;
2056
2057         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2058         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2059         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2060         outb(fn, spic_dev.cur_ioport->io1.minimum);
2061         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2062         outb(v, spic_dev.cur_ioport->io1.minimum);
2063         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2064         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2065                         dev, fn, v, v1);
2066         return v1;
2067 }
2068
2069 /*
2070  * minidrivers for SPIC models
2071  */
2072 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2073 {
2074         /*
2075          * 0x31 could mean we have to take some extra action and wait for
2076          * the next irq for some Type3 models, it will generate a new
2077          * irq and we can read new data from the device:
2078          *  - 0x5c and 0x5f requires 0xA0
2079          *  - 0x61 requires 0xB3
2080          */
2081         if (data_mask == 0x31) {
2082                 if (ev == 0x5c || ev == 0x5f)
2083                         sony_pic_call1(0xA0);
2084                 else if (ev == 0x61)
2085                         sony_pic_call1(0xB3);
2086                 return 0;
2087         }
2088         return 1;
2089 }
2090
2091 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2092 {
2093         struct pci_dev *pcidev;
2094
2095         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2096                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2097         if (pcidev) {
2098                 dev->model = SONYPI_DEVICE_TYPE1;
2099                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2100                 dev->event_types = type1_events;
2101                 goto out;
2102         }
2103
2104         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2105                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2106         if (pcidev) {
2107                 dev->model = SONYPI_DEVICE_TYPE2;
2108                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2109                 dev->event_types = type2_events;
2110                 goto out;
2111         }
2112
2113         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2114                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2115         if (pcidev) {
2116                 dev->model = SONYPI_DEVICE_TYPE3;
2117                 dev->handle_irq = type3_handle_irq;
2118                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2119                 dev->event_types = type3_events;
2120                 goto out;
2121         }
2122
2123         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2124                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2125         if (pcidev) {
2126                 dev->model = SONYPI_DEVICE_TYPE3;
2127                 dev->handle_irq = type3_handle_irq;
2128                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2129                 dev->event_types = type3_events;
2130                 goto out;
2131         }
2132
2133         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2134                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2135         if (pcidev) {
2136                 dev->model = SONYPI_DEVICE_TYPE3;
2137                 dev->handle_irq = type3_handle_irq;
2138                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2139                 dev->event_types = type3_events;
2140                 goto out;
2141         }
2142
2143         /* default */
2144         dev->model = SONYPI_DEVICE_TYPE2;
2145         dev->evport_offset = SONYPI_TYPE2_OFFSET;
2146         dev->event_types = type2_events;
2147
2148 out:
2149         if (pcidev)
2150                 pci_dev_put(pcidev);
2151
2152         pr_info(DRV_PFX "detected Type%d model\n",
2153                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2154                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2155 }
2156
2157 /* camera tests and poweron/poweroff */
2158 #define SONYPI_CAMERA_PICTURE           5
2159 #define SONYPI_CAMERA_CONTROL           0x10
2160
2161 #define SONYPI_CAMERA_BRIGHTNESS                0
2162 #define SONYPI_CAMERA_CONTRAST                  1
2163 #define SONYPI_CAMERA_HUE                       2
2164 #define SONYPI_CAMERA_COLOR                     3
2165 #define SONYPI_CAMERA_SHARPNESS                 4
2166
2167 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
2168 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
2169 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
2170 #define SONYPI_CAMERA_MUTE_MASK                 0x40
2171
2172 /* the rest don't need a loop until not 0xff */
2173 #define SONYPI_CAMERA_AGC                       6
2174 #define SONYPI_CAMERA_AGC_MASK                  0x30
2175 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
2176
2177 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
2178 #define SONYPI_CAMERA_CONTROL                   0x10
2179
2180 #define SONYPI_CAMERA_STATUS                    7
2181 #define SONYPI_CAMERA_STATUS_READY              0x2
2182 #define SONYPI_CAMERA_STATUS_POSITION           0x4
2183
2184 #define SONYPI_DIRECTION_BACKWARDS              0x4
2185
2186 #define SONYPI_CAMERA_REVISION                  8
2187 #define SONYPI_CAMERA_ROMVERSION                9
2188
2189 static int __sony_pic_camera_ready(void)
2190 {
2191         u8 v;
2192
2193         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2194         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2195 }
2196
2197 static int __sony_pic_camera_off(void)
2198 {
2199         if (!camera) {
2200                 pr_warn(DRV_PFX "camera control not enabled\n");
2201                 return -ENODEV;
2202         }
2203
2204         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2205                                 SONYPI_CAMERA_MUTE_MASK),
2206                         ITERATIONS_SHORT);
2207
2208         if (spic_dev.camera_power) {
2209                 sony_pic_call2(0x91, 0);
2210                 spic_dev.camera_power = 0;
2211         }
2212         return 0;
2213 }
2214
2215 static int __sony_pic_camera_on(void)
2216 {
2217         int i, j, x;
2218
2219         if (!camera) {
2220                 pr_warn(DRV_PFX "camera control not enabled\n");
2221                 return -ENODEV;
2222         }
2223
2224         if (spic_dev.camera_power)
2225                 return 0;
2226
2227         for (j = 5; j > 0; j--) {
2228
2229                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2230                         msleep(10);
2231                 sony_pic_call1(0x93);
2232
2233                 for (i = 400; i > 0; i--) {
2234                         if (__sony_pic_camera_ready())
2235                                 break;
2236                         msleep(10);
2237                 }
2238                 if (i)
2239                         break;
2240         }
2241
2242         if (j == 0) {
2243                 pr_warn(DRV_PFX "failed to power on camera\n");
2244                 return -ENODEV;
2245         }
2246
2247         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2248                                 0x5a),
2249                         ITERATIONS_SHORT);
2250
2251         spic_dev.camera_power = 1;
2252         return 0;
2253 }
2254
2255 /* External camera command (exported to the motion eye v4l driver) */
2256 int sony_pic_camera_command(int command, u8 value)
2257 {
2258         if (!camera)
2259                 return -EIO;
2260
2261         mutex_lock(&spic_dev.lock);
2262
2263         switch (command) {
2264         case SONY_PIC_COMMAND_SETCAMERA:
2265                 if (value)
2266                         __sony_pic_camera_on();
2267                 else
2268                         __sony_pic_camera_off();
2269                 break;
2270         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2271                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2272                                 ITERATIONS_SHORT);
2273                 break;
2274         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2275                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2276                                 ITERATIONS_SHORT);
2277                 break;
2278         case SONY_PIC_COMMAND_SETCAMERAHUE:
2279                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2280                                 ITERATIONS_SHORT);
2281                 break;
2282         case SONY_PIC_COMMAND_SETCAMERACOLOR:
2283                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2284                                 ITERATIONS_SHORT);
2285                 break;
2286         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2287                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2288                                 ITERATIONS_SHORT);
2289                 break;
2290         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2291                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2292                                 ITERATIONS_SHORT);
2293                 break;
2294         case SONY_PIC_COMMAND_SETCAMERAAGC:
2295                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2296                                 ITERATIONS_SHORT);
2297                 break;
2298         default:
2299                 pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n",
2300                        command);
2301                 break;
2302         }
2303         mutex_unlock(&spic_dev.lock);
2304         return 0;
2305 }
2306 EXPORT_SYMBOL(sony_pic_camera_command);
2307
2308 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2309 static void __sony_pic_set_wwanpower(u8 state)
2310 {
2311         state = !!state;
2312         if (spic_dev.wwan_power == state)
2313                 return;
2314         sony_pic_call2(0xB0, state);
2315         sony_pic_call1(0x82);
2316         spic_dev.wwan_power = state;
2317 }
2318
2319 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2320                 struct device_attribute *attr,
2321                 const char *buffer, size_t count)
2322 {
2323         unsigned long value;
2324         if (count > 31)
2325                 return -EINVAL;
2326
2327         value = simple_strtoul(buffer, NULL, 10);
2328         mutex_lock(&spic_dev.lock);
2329         __sony_pic_set_wwanpower(value);
2330         mutex_unlock(&spic_dev.lock);
2331
2332         return count;
2333 }
2334
2335 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2336                 struct device_attribute *attr, char *buffer)
2337 {
2338         ssize_t count;
2339         mutex_lock(&spic_dev.lock);
2340         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2341         mutex_unlock(&spic_dev.lock);
2342         return count;
2343 }
2344
2345 /* bluetooth subsystem power state */
2346 static void __sony_pic_set_bluetoothpower(u8 state)
2347 {
2348         state = !!state;
2349         if (spic_dev.bluetooth_power == state)
2350                 return;
2351         sony_pic_call2(0x96, state);
2352         sony_pic_call1(0x82);
2353         spic_dev.bluetooth_power = state;
2354 }
2355
2356 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2357                 struct device_attribute *attr,
2358                 const char *buffer, size_t count)
2359 {
2360         unsigned long value;
2361         if (count > 31)
2362                 return -EINVAL;
2363
2364         value = simple_strtoul(buffer, NULL, 10);
2365         mutex_lock(&spic_dev.lock);
2366         __sony_pic_set_bluetoothpower(value);
2367         mutex_unlock(&spic_dev.lock);
2368
2369         return count;
2370 }
2371
2372 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2373                 struct device_attribute *attr, char *buffer)
2374 {
2375         ssize_t count = 0;
2376         mutex_lock(&spic_dev.lock);
2377         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2378         mutex_unlock(&spic_dev.lock);
2379         return count;
2380 }
2381
2382 /* fan speed */
2383 /* FAN0 information (reverse engineered from ACPI tables) */
2384 #define SONY_PIC_FAN0_STATUS    0x93
2385 static int sony_pic_set_fanspeed(unsigned long value)
2386 {
2387         return ec_write(SONY_PIC_FAN0_STATUS, value);
2388 }
2389
2390 static int sony_pic_get_fanspeed(u8 *value)
2391 {
2392         return ec_read(SONY_PIC_FAN0_STATUS, value);
2393 }
2394
2395 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2396                 struct device_attribute *attr,
2397                 const char *buffer, size_t count)
2398 {
2399         unsigned long value;
2400         if (count > 31)
2401                 return -EINVAL;
2402
2403         value = simple_strtoul(buffer, NULL, 10);
2404         if (sony_pic_set_fanspeed(value))
2405                 return -EIO;
2406
2407         return count;
2408 }
2409
2410 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2411                 struct device_attribute *attr, char *buffer)
2412 {
2413         u8 value = 0;
2414         if (sony_pic_get_fanspeed(&value))
2415                 return -EIO;
2416
2417         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2418 }
2419
2420 #define SPIC_ATTR(_name, _mode)                                 \
2421 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2422                 _mode, sony_pic_## _name ##_show,               \
2423                 sony_pic_## _name ##_store)
2424
2425 static SPIC_ATTR(bluetoothpower, 0644);
2426 static SPIC_ATTR(wwanpower, 0644);
2427 static SPIC_ATTR(fanspeed, 0644);
2428
2429 static struct attribute *spic_attributes[] = {
2430         &spic_attr_bluetoothpower.attr,
2431         &spic_attr_wwanpower.attr,
2432         &spic_attr_fanspeed.attr,
2433         NULL
2434 };
2435
2436 static struct attribute_group spic_attribute_group = {
2437         .attrs = spic_attributes
2438 };
2439
2440 /******** SONYPI compatibility **********/
2441 #ifdef CONFIG_SONYPI_COMPAT
2442
2443 /* battery / brightness / temperature  addresses */
2444 #define SONYPI_BAT_FLAGS        0x81
2445 #define SONYPI_LCD_LIGHT        0x96
2446 #define SONYPI_BAT1_PCTRM       0xa0
2447 #define SONYPI_BAT1_LEFT        0xa2
2448 #define SONYPI_BAT1_MAXRT       0xa4
2449 #define SONYPI_BAT2_PCTRM       0xa8
2450 #define SONYPI_BAT2_LEFT        0xaa
2451 #define SONYPI_BAT2_MAXRT       0xac
2452 #define SONYPI_BAT1_MAXTK       0xb0
2453 #define SONYPI_BAT1_FULL        0xb2
2454 #define SONYPI_BAT2_MAXTK       0xb8
2455 #define SONYPI_BAT2_FULL        0xba
2456 #define SONYPI_TEMP_STATUS      0xC1
2457
2458 struct sonypi_compat_s {
2459         struct fasync_struct    *fifo_async;
2460         struct kfifo            fifo;
2461         spinlock_t              fifo_lock;
2462         wait_queue_head_t       fifo_proc_list;
2463         atomic_t                open_count;
2464 };
2465 static struct sonypi_compat_s sonypi_compat = {
2466         .open_count = ATOMIC_INIT(0),
2467 };
2468
2469 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2470 {
2471         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2472 }
2473
2474 static int sonypi_misc_release(struct inode *inode, struct file *file)
2475 {
2476         atomic_dec(&sonypi_compat.open_count);
2477         return 0;
2478 }
2479
2480 static int sonypi_misc_open(struct inode *inode, struct file *file)
2481 {
2482         /* Flush input queue on first open */
2483         unsigned long flags;
2484
2485         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2486
2487         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2488                 kfifo_reset(&sonypi_compat.fifo);
2489
2490         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2491
2492         return 0;
2493 }
2494
2495 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2496                                 size_t count, loff_t *pos)
2497 {
2498         ssize_t ret;
2499         unsigned char c;
2500
2501         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2502             (file->f_flags & O_NONBLOCK))
2503                 return -EAGAIN;
2504
2505         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2506                                        kfifo_len(&sonypi_compat.fifo) != 0);
2507         if (ret)
2508                 return ret;
2509
2510         while (ret < count &&
2511                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2512                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2513                 if (put_user(c, buf++))
2514                         return -EFAULT;
2515                 ret++;
2516         }
2517
2518         if (ret > 0) {
2519                 struct inode *inode = file->f_path.dentry->d_inode;
2520                 inode->i_atime = current_fs_time(inode->i_sb);
2521         }
2522
2523         return ret;
2524 }
2525
2526 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2527 {
2528         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2529         if (kfifo_len(&sonypi_compat.fifo))
2530                 return POLLIN | POLLRDNORM;
2531         return 0;
2532 }
2533
2534 static int ec_read16(u8 addr, u16 *value)
2535 {
2536         u8 val_lb, val_hb;
2537         if (ec_read(addr, &val_lb))
2538                 return -1;
2539         if (ec_read(addr + 1, &val_hb))
2540                 return -1;
2541         *value = val_lb | (val_hb << 8);
2542         return 0;
2543 }
2544
2545 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2546                                                         unsigned long arg)
2547 {
2548         int ret = 0;
2549         void __user *argp = (void __user *)arg;
2550         u8 val8;
2551         u16 val16;
2552         int value;
2553
2554         mutex_lock(&spic_dev.lock);
2555         switch (cmd) {
2556         case SONYPI_IOCGBRT:
2557                 if (sony_backlight_device == NULL) {
2558                         ret = -EIO;
2559                         break;
2560                 }
2561                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2562                         ret = -EIO;
2563                         break;
2564                 }
2565                 val8 = ((value & 0xff) - 1) << 5;
2566                 if (copy_to_user(argp, &val8, sizeof(val8)))
2567                                 ret = -EFAULT;
2568                 break;
2569         case SONYPI_IOCSBRT:
2570                 if (sony_backlight_device == NULL) {
2571                         ret = -EIO;
2572                         break;
2573                 }
2574                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2575                         ret = -EFAULT;
2576                         break;
2577                 }
2578                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2579                                 (val8 >> 5) + 1, NULL)) {
2580                         ret = -EIO;
2581                         break;
2582                 }
2583                 /* sync the backlight device status */
2584                 sony_backlight_device->props.brightness =
2585                     sony_backlight_get_brightness(sony_backlight_device);
2586                 break;
2587         case SONYPI_IOCGBAT1CAP:
2588                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2589                         ret = -EIO;
2590                         break;
2591                 }
2592                 if (copy_to_user(argp, &val16, sizeof(val16)))
2593                         ret = -EFAULT;
2594                 break;
2595         case SONYPI_IOCGBAT1REM:
2596                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2597                         ret = -EIO;
2598                         break;
2599                 }
2600                 if (copy_to_user(argp, &val16, sizeof(val16)))
2601                         ret = -EFAULT;
2602                 break;
2603         case SONYPI_IOCGBAT2CAP:
2604                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2605                         ret = -EIO;
2606                         break;
2607                 }
2608                 if (copy_to_user(argp, &val16, sizeof(val16)))
2609                         ret = -EFAULT;
2610                 break;
2611         case SONYPI_IOCGBAT2REM:
2612                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2613                         ret = -EIO;
2614                         break;
2615                 }
2616                 if (copy_to_user(argp, &val16, sizeof(val16)))
2617                         ret = -EFAULT;
2618                 break;
2619         case SONYPI_IOCGBATFLAGS:
2620                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2621                         ret = -EIO;
2622                         break;
2623                 }
2624                 val8 &= 0x07;
2625                 if (copy_to_user(argp, &val8, sizeof(val8)))
2626                         ret = -EFAULT;
2627                 break;
2628         case SONYPI_IOCGBLUE:
2629                 val8 = spic_dev.bluetooth_power;
2630                 if (copy_to_user(argp, &val8, sizeof(val8)))
2631                         ret = -EFAULT;
2632                 break;
2633         case SONYPI_IOCSBLUE:
2634                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2635                         ret = -EFAULT;
2636                         break;
2637                 }
2638                 __sony_pic_set_bluetoothpower(val8);
2639                 break;
2640         /* FAN Controls */
2641         case SONYPI_IOCGFAN:
2642                 if (sony_pic_get_fanspeed(&val8)) {
2643                         ret = -EIO;
2644                         break;
2645                 }
2646                 if (copy_to_user(argp, &val8, sizeof(val8)))
2647                         ret = -EFAULT;
2648                 break;
2649         case SONYPI_IOCSFAN:
2650                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2651                         ret = -EFAULT;
2652                         break;
2653                 }
2654                 if (sony_pic_set_fanspeed(val8))
2655                         ret = -EIO;
2656                 break;
2657         /* GET Temperature (useful under APM) */
2658         case SONYPI_IOCGTEMP:
2659                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2660                         ret = -EIO;
2661                         break;
2662                 }
2663                 if (copy_to_user(argp, &val8, sizeof(val8)))
2664                         ret = -EFAULT;
2665                 break;
2666         default:
2667                 ret = -EINVAL;
2668         }
2669         mutex_unlock(&spic_dev.lock);
2670         return ret;
2671 }
2672
2673 static const struct file_operations sonypi_misc_fops = {
2674         .owner          = THIS_MODULE,
2675         .read           = sonypi_misc_read,
2676         .poll           = sonypi_misc_poll,
2677         .open           = sonypi_misc_open,
2678         .release        = sonypi_misc_release,
2679         .fasync         = sonypi_misc_fasync,
2680         .unlocked_ioctl = sonypi_misc_ioctl,
2681         .llseek         = noop_llseek,
2682 };
2683
2684 static struct miscdevice sonypi_misc_device = {
2685         .minor          = MISC_DYNAMIC_MINOR,
2686         .name           = "sonypi",
2687         .fops           = &sonypi_misc_fops,
2688 };
2689
2690 static void sonypi_compat_report_event(u8 event)
2691 {
2692         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2693                         sizeof(event), &sonypi_compat.fifo_lock);
2694         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2695         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2696 }
2697
2698 static int sonypi_compat_init(void)
2699 {
2700         int error;
2701
2702         spin_lock_init(&sonypi_compat.fifo_lock);
2703         error =
2704          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2705         if (error) {
2706                 pr_err(DRV_PFX "kfifo_alloc failed\n");
2707                 return error;
2708         }
2709
2710         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2711
2712         if (minor != -1)
2713                 sonypi_misc_device.minor = minor;
2714         error = misc_register(&sonypi_misc_device);
2715         if (error) {
2716                 pr_err(DRV_PFX "misc_register failed\n");
2717                 goto err_free_kfifo;
2718         }
2719         if (minor == -1)
2720                 pr_info(DRV_PFX "device allocated minor is %d\n",
2721                        sonypi_misc_device.minor);
2722
2723         return 0;
2724
2725 err_free_kfifo:
2726         kfifo_free(&sonypi_compat.fifo);
2727         return error;
2728 }
2729
2730 static void sonypi_compat_exit(void)
2731 {
2732         misc_deregister(&sonypi_misc_device);
2733         kfifo_free(&sonypi_compat.fifo);
2734 }
2735 #else
2736 static int sonypi_compat_init(void) { return 0; }
2737 static void sonypi_compat_exit(void) { }
2738 static void sonypi_compat_report_event(u8 event) { }
2739 #endif /* CONFIG_SONYPI_COMPAT */
2740
2741 /*
2742  * ACPI callbacks
2743  */
2744 static acpi_status
2745 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2746 {
2747         u32 i;
2748         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2749
2750         switch (resource->type) {
2751         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2752                 {
2753                         /* start IO enumeration */
2754                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2755                         if (!ioport)
2756                                 return AE_ERROR;
2757
2758                         list_add(&ioport->list, &dev->ioports);
2759                         return AE_OK;
2760                 }
2761
2762         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2763                 /* end IO enumeration */
2764                 return AE_OK;
2765
2766         case ACPI_RESOURCE_TYPE_IRQ:
2767                 {
2768                         struct acpi_resource_irq *p = &resource->data.irq;
2769                         struct sony_pic_irq *interrupt = NULL;
2770                         if (!p || !p->interrupt_count) {
2771                                 /*
2772                                  * IRQ descriptors may have no IRQ# bits set,
2773                                  * particularly those those w/ _STA disabled
2774                                  */
2775                                 dprintk("Blank IRQ resource\n");
2776                                 return AE_OK;
2777                         }
2778                         for (i = 0; i < p->interrupt_count; i++) {
2779                                 if (!p->interrupts[i]) {
2780                                         pr_warn(DRV_PFX "Invalid IRQ %d\n",
2781                                                         p->interrupts[i]);
2782                                         continue;
2783                                 }
2784                                 interrupt = kzalloc(sizeof(*interrupt),
2785                                                 GFP_KERNEL);
2786                                 if (!interrupt)
2787                                         return AE_ERROR;
2788
2789                                 list_add(&interrupt->list, &dev->interrupts);
2790                                 interrupt->irq.triggering = p->triggering;
2791                                 interrupt->irq.polarity = p->polarity;
2792                                 interrupt->irq.sharable = p->sharable;
2793                                 interrupt->irq.interrupt_count = 1;
2794                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2795                         }
2796                         return AE_OK;
2797                 }
2798         case ACPI_RESOURCE_TYPE_IO:
2799                 {
2800                         struct acpi_resource_io *io = &resource->data.io;
2801                         struct sony_pic_ioport *ioport =
2802                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2803                         if (!io) {
2804                                 dprintk("Blank IO resource\n");
2805                                 return AE_OK;
2806                         }
2807
2808                         if (!ioport->io1.minimum) {
2809                                 memcpy(&ioport->io1, io, sizeof(*io));
2810                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2811                                                 ioport->io1.address_length);
2812                         }
2813                         else if (!ioport->io2.minimum) {
2814                                 memcpy(&ioport->io2, io, sizeof(*io));
2815                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2816                                                 ioport->io2.address_length);
2817                         }
2818                         else {
2819                                 pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2820                                 return AE_ERROR;
2821                         }
2822                         return AE_OK;
2823                 }
2824         default:
2825                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2826                                 resource->type);
2827
2828         case ACPI_RESOURCE_TYPE_END_TAG:
2829                 return AE_OK;
2830         }
2831         return AE_CTRL_TERMINATE;
2832 }
2833
2834 static int sony_pic_possible_resources(struct acpi_device *device)
2835 {
2836         int result = 0;
2837         acpi_status status = AE_OK;
2838
2839         if (!device)
2840                 return -EINVAL;
2841
2842         /* get device status */
2843         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2844         dprintk("Evaluating _STA\n");
2845         result = acpi_bus_get_status(device);
2846         if (result) {
2847                 pr_warn(DRV_PFX "Unable to read status\n");
2848                 goto end;
2849         }
2850
2851         if (!device->status.enabled)
2852                 dprintk("Device disabled\n");
2853         else
2854                 dprintk("Device enabled\n");
2855
2856         /*
2857          * Query and parse 'method'
2858          */
2859         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2860         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2861                         sony_pic_read_possible_resource, &spic_dev);
2862         if (ACPI_FAILURE(status)) {
2863                 pr_warn(DRV_PFX "Failure evaluating %s\n",
2864                                 METHOD_NAME__PRS);
2865                 result = -ENODEV;
2866         }
2867 end:
2868         return result;
2869 }
2870
2871 /*
2872  *  Disable the spic device by calling its _DIS method
2873  */
2874 static int sony_pic_disable(struct acpi_device *device)
2875 {
2876         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2877                                                NULL);
2878
2879         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2880                 return -ENXIO;
2881
2882         dprintk("Device disabled\n");
2883         return 0;
2884 }
2885
2886
2887 /*
2888  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2889  *
2890  *  Call _SRS to set current resources
2891  */
2892 static int sony_pic_enable(struct acpi_device *device,
2893                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2894 {
2895         acpi_status status;
2896         int result = 0;
2897         /* Type 1 resource layout is:
2898          *    IO
2899          *    IO
2900          *    IRQNoFlags
2901          *    End
2902          *
2903          * Type 2 and 3 resource layout is:
2904          *    IO
2905          *    IRQNoFlags
2906          *    End
2907          */
2908         struct {
2909                 struct acpi_resource res1;
2910                 struct acpi_resource res2;
2911                 struct acpi_resource res3;
2912                 struct acpi_resource res4;
2913         } *resource;
2914         struct acpi_buffer buffer = { 0, NULL };
2915
2916         if (!ioport || !irq)
2917                 return -EINVAL;
2918
2919         /* init acpi_buffer */
2920         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2921         if (!resource)
2922                 return -ENOMEM;
2923
2924         buffer.length = sizeof(*resource) + 1;
2925         buffer.pointer = resource;
2926
2927         /* setup Type 1 resources */
2928         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2929
2930                 /* setup io resources */
2931                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2932                 resource->res1.length = sizeof(struct acpi_resource);
2933                 memcpy(&resource->res1.data.io, &ioport->io1,
2934                                 sizeof(struct acpi_resource_io));
2935
2936                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2937                 resource->res2.length = sizeof(struct acpi_resource);
2938                 memcpy(&resource->res2.data.io, &ioport->io2,
2939                                 sizeof(struct acpi_resource_io));
2940
2941                 /* setup irq resource */
2942                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2943                 resource->res3.length = sizeof(struct acpi_resource);
2944                 memcpy(&resource->res3.data.irq, &irq->irq,
2945                                 sizeof(struct acpi_resource_irq));
2946                 /* we requested a shared irq */
2947                 resource->res3.data.irq.sharable = ACPI_SHARED;
2948
2949                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2950
2951         }
2952         /* setup Type 2/3 resources */
2953         else {
2954                 /* setup io resource */
2955                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2956                 resource->res1.length = sizeof(struct acpi_resource);
2957                 memcpy(&resource->res1.data.io, &ioport->io1,
2958                                 sizeof(struct acpi_resource_io));
2959
2960                 /* setup irq resource */
2961                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2962                 resource->res2.length = sizeof(struct acpi_resource);
2963                 memcpy(&resource->res2.data.irq, &irq->irq,
2964                                 sizeof(struct acpi_resource_irq));
2965                 /* we requested a shared irq */
2966                 resource->res2.data.irq.sharable = ACPI_SHARED;
2967
2968                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2969         }
2970
2971         /* Attempt to set the resource */
2972         dprintk("Evaluating _SRS\n");
2973         status = acpi_set_current_resources(device->handle, &buffer);
2974
2975         /* check for total failure */
2976         if (ACPI_FAILURE(status)) {
2977                 pr_err(DRV_PFX "Error evaluating _SRS\n");
2978                 result = -ENODEV;
2979                 goto end;
2980         }
2981
2982         /* Necessary device initializations calls (from sonypi) */
2983         sony_pic_call1(0x82);
2984         sony_pic_call2(0x81, 0xff);
2985         sony_pic_call1(compat ? 0x92 : 0x82);
2986
2987 end:
2988         kfree(resource);
2989         return result;
2990 }
2991
2992 /*****************
2993  *
2994  * ISR: some event is available
2995  *
2996  *****************/
2997 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2998 {
2999         int i, j;
3000         u8 ev = 0;
3001         u8 data_mask = 0;
3002         u8 device_event = 0;
3003
3004         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
3005
3006         ev = inb_p(dev->cur_ioport->io1.minimum);
3007         if (dev->cur_ioport->io2.minimum)
3008                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3009         else
3010                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3011                                 dev->evport_offset);
3012
3013         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3014                         ev, data_mask, dev->cur_ioport->io1.minimum,
3015                         dev->evport_offset);
3016
3017         if (ev == 0x00 || ev == 0xff)
3018                 return IRQ_HANDLED;
3019
3020         for (i = 0; dev->event_types[i].mask; i++) {
3021
3022                 if ((data_mask & dev->event_types[i].data) !=
3023                     dev->event_types[i].data)
3024                         continue;
3025
3026                 if (!(mask & dev->event_types[i].mask))
3027                         continue;
3028
3029                 for (j = 0; dev->event_types[i].events[j].event; j++) {
3030                         if (ev == dev->event_types[i].events[j].data) {
3031                                 device_event =
3032                                         dev->event_types[i].events[j].event;
3033                                 /* some events may require ignoring */
3034                                 if (!device_event)
3035                                         return IRQ_HANDLED;
3036                                 goto found;
3037                         }
3038                 }
3039         }
3040         /* Still not able to decode the event try to pass
3041          * it over to the minidriver
3042          */
3043         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3044                 return IRQ_HANDLED;
3045
3046         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3047                         ev, data_mask, dev->cur_ioport->io1.minimum,
3048                         dev->evport_offset);
3049         return IRQ_HANDLED;
3050
3051 found:
3052         sony_laptop_report_input_event(device_event);
3053         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3054         sonypi_compat_report_event(device_event);
3055         return IRQ_HANDLED;
3056 }
3057
3058 /*****************
3059  *
3060  *  ACPI driver
3061  *
3062  *****************/
3063 static int sony_pic_remove(struct acpi_device *device, int type)
3064 {
3065         struct sony_pic_ioport *io, *tmp_io;
3066         struct sony_pic_irq *irq, *tmp_irq;
3067
3068         if (sony_pic_disable(device)) {
3069                 pr_err(DRV_PFX "Couldn't disable device.\n");
3070                 return -ENXIO;
3071         }
3072
3073         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3074         release_region(spic_dev.cur_ioport->io1.minimum,
3075                         spic_dev.cur_ioport->io1.address_length);
3076         if (spic_dev.cur_ioport->io2.minimum)
3077                 release_region(spic_dev.cur_ioport->io2.minimum,
3078                                 spic_dev.cur_ioport->io2.address_length);
3079
3080         sonypi_compat_exit();
3081
3082         sony_laptop_remove_input();
3083
3084         /* pf attrs */
3085         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3086         sony_pf_remove();
3087
3088         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3089                 list_del(&io->list);
3090                 kfree(io);
3091         }
3092         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3093                 list_del(&irq->list);
3094                 kfree(irq);
3095         }
3096         spic_dev.cur_ioport = NULL;
3097         spic_dev.cur_irq = NULL;
3098
3099         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3100         return 0;
3101 }
3102
3103 static int sony_pic_add(struct acpi_device *device)
3104 {
3105         int result;
3106         struct sony_pic_ioport *io, *tmp_io;
3107         struct sony_pic_irq *irq, *tmp_irq;
3108
3109         pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME,
3110                         SONY_LAPTOP_DRIVER_VERSION);
3111
3112         spic_dev.acpi_dev = device;
3113         strcpy(acpi_device_class(device), "sony/hotkey");
3114         sony_pic_detect_device_type(&spic_dev);
3115         mutex_init(&spic_dev.lock);
3116
3117         /* read _PRS resources */
3118         result = sony_pic_possible_resources(device);
3119         if (result) {
3120                 pr_err(DRV_PFX "Unable to read possible resources.\n");
3121                 goto err_free_resources;
3122         }
3123
3124         /* setup input devices and helper fifo */
3125         result = sony_laptop_setup_input(device);
3126         if (result) {
3127                 pr_err(DRV_PFX "Unable to create input devices.\n");
3128                 goto err_free_resources;
3129         }
3130
3131         if (sonypi_compat_init())
3132                 goto err_remove_input;
3133
3134         /* request io port */
3135         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3136                 if (request_region(io->io1.minimum, io->io1.address_length,
3137                                         "Sony Programmable I/O Device")) {
3138                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3139                                         io->io1.minimum, io->io1.maximum,
3140                                         io->io1.address_length);
3141                         /* Type 1 have 2 ioports */
3142                         if (io->io2.minimum) {
3143                                 if (request_region(io->io2.minimum,
3144                                                 io->io2.address_length,
3145                                                 "Sony Programmable I/O Device")) {
3146                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3147                                                         io->io2.minimum, io->io2.maximum,
3148                                                         io->io2.address_length);
3149                                         spic_dev.cur_ioport = io;
3150                                         break;
3151                                 }
3152                                 else {
3153                                         dprintk("Unable to get I/O port2: "
3154                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
3155                                                         io->io2.minimum, io->io2.maximum,
3156                                                         io->io2.address_length);
3157                                         release_region(io->io1.minimum,
3158                                                         io->io1.address_length);
3159                                 }
3160                         }
3161                         else {
3162                                 spic_dev.cur_ioport = io;
3163                                 break;
3164                         }
3165                 }
3166         }
3167         if (!spic_dev.cur_ioport) {
3168                 pr_err(DRV_PFX "Failed to request_region.\n");
3169                 result = -ENODEV;
3170                 goto err_remove_compat;
3171         }
3172
3173         /* request IRQ */
3174         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3175                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3176                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
3177                         dprintk("IRQ: %d - triggering: %d - "
3178                                         "polarity: %d - shr: %d\n",
3179                                         irq->irq.interrupts[0],
3180                                         irq->irq.triggering,
3181                                         irq->irq.polarity,
3182                                         irq->irq.sharable);
3183                         spic_dev.cur_irq = irq;
3184                         break;
3185                 }
3186         }
3187         if (!spic_dev.cur_irq) {
3188                 pr_err(DRV_PFX "Failed to request_irq.\n");
3189                 result = -ENODEV;
3190                 goto err_release_region;
3191         }
3192
3193         /* set resource status _SRS */
3194         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3195         if (result) {
3196                 pr_err(DRV_PFX "Couldn't enable device.\n");
3197                 goto err_free_irq;
3198         }
3199
3200         spic_dev.bluetooth_power = -1;
3201         /* create device attributes */
3202         result = sony_pf_add();
3203         if (result)
3204                 goto err_disable_device;
3205
3206         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3207         if (result)
3208                 goto err_remove_pf;
3209
3210         return 0;
3211
3212 err_remove_pf:
3213         sony_pf_remove();
3214
3215 err_disable_device:
3216         sony_pic_disable(device);
3217
3218 err_free_irq:
3219         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3220
3221 err_release_region:
3222         release_region(spic_dev.cur_ioport->io1.minimum,
3223                         spic_dev.cur_ioport->io1.address_length);
3224         if (spic_dev.cur_ioport->io2.minimum)
3225                 release_region(spic_dev.cur_ioport->io2.minimum,
3226                                 spic_dev.cur_ioport->io2.address_length);
3227
3228 err_remove_compat:
3229         sonypi_compat_exit();
3230
3231 err_remove_input:
3232         sony_laptop_remove_input();
3233
3234 err_free_resources:
3235         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3236                 list_del(&io->list);
3237                 kfree(io);
3238         }
3239         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3240                 list_del(&irq->list);
3241                 kfree(irq);
3242         }
3243         spic_dev.cur_ioport = NULL;
3244         spic_dev.cur_irq = NULL;
3245
3246         return result;
3247 }
3248
3249 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3250 {
3251         if (sony_pic_disable(device))
3252                 return -ENXIO;
3253         return 0;
3254 }
3255
3256 static int sony_pic_resume(struct acpi_device *device)
3257 {
3258         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3259         return 0;
3260 }
3261
3262 static const struct acpi_device_id sony_pic_device_ids[] = {
3263         {SONY_PIC_HID, 0},
3264         {"", 0},
3265 };
3266
3267 static struct acpi_driver sony_pic_driver = {
3268         .name = SONY_PIC_DRIVER_NAME,
3269         .class = SONY_PIC_CLASS,
3270         .ids = sony_pic_device_ids,
3271         .owner = THIS_MODULE,
3272         .ops = {
3273                 .add = sony_pic_add,
3274                 .remove = sony_pic_remove,
3275                 .suspend = sony_pic_suspend,
3276                 .resume = sony_pic_resume,
3277                 },
3278 };
3279
3280 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3281         {
3282                 .ident = "Sony Vaio",
3283                 .matches = {
3284                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3285                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3286                 },
3287         },
3288         {
3289                 .ident = "Sony Vaio",
3290                 .matches = {
3291                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3292                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3293                 },
3294         },
3295         { }
3296 };
3297
3298 static int __init sony_laptop_init(void)
3299 {
3300         int result;
3301
3302         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3303                 result = acpi_bus_register_driver(&sony_pic_driver);
3304                 if (result) {
3305                         pr_err(DRV_PFX "Unable to register SPIC driver.");
3306                         goto out;
3307                 }
3308                 spic_drv_registered = 1;
3309         }
3310
3311         result = acpi_bus_register_driver(&sony_nc_driver);
3312         if (result) {
3313                 pr_err(DRV_PFX "Unable to register SNC driver.");
3314                 goto out_unregister_pic;
3315         }
3316
3317         return 0;
3318
3319 out_unregister_pic:
3320         if (spic_drv_registered)
3321                 acpi_bus_unregister_driver(&sony_pic_driver);
3322 out:
3323         return result;
3324 }
3325
3326 static void __exit sony_laptop_exit(void)
3327 {
3328         acpi_bus_unregister_driver(&sony_nc_driver);
3329         if (spic_drv_registered)
3330                 acpi_bus_unregister_driver(&sony_pic_driver);
3331 }
3332
3333 module_init(sony_laptop_init);
3334 module_exit(sony_laptop_exit);