sony-laptop: report failures on setting LCD brightness
[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 static void sony_nc_kbd_backlight_resume(void);
142
143 enum sony_nc_rfkill {
144         SONY_WIFI,
145         SONY_BLUETOOTH,
146         SONY_WWAN,
147         SONY_WIMAX,
148         N_SONY_RFKILL,
149 };
150
151 static int sony_rfkill_handle;
152 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
153 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
154 static void sony_nc_rfkill_update(void);
155
156 /*********** Input Devices ***********/
157
158 #define SONY_LAPTOP_BUF_SIZE    128
159 struct sony_laptop_input_s {
160         atomic_t                users;
161         struct input_dev        *jog_dev;
162         struct input_dev        *key_dev;
163         struct kfifo            fifo;
164         spinlock_t              fifo_lock;
165         struct timer_list       release_key_timer;
166 };
167
168 static struct sony_laptop_input_s sony_laptop_input = {
169         .users = ATOMIC_INIT(0),
170 };
171
172 struct sony_laptop_keypress {
173         struct input_dev *dev;
174         int key;
175 };
176
177 /* Correspondance table between sonypi events
178  * and input layer indexes in the keymap
179  */
180 static int sony_laptop_input_index[] = {
181         -1,     /*  0 no event */
182         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
183         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
184         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
185         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
186         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
187         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
188          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
189          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
190          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
191          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
192          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
193          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
194          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
195          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
196          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
197          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
198         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
199         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
200         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
201         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
202         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
203         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
204         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
205         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
206         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
207         19,     /* 26 SONYPI_EVENT_FNKEY_D */
208         20,     /* 27 SONYPI_EVENT_FNKEY_E */
209         21,     /* 28 SONYPI_EVENT_FNKEY_F */
210         22,     /* 29 SONYPI_EVENT_FNKEY_S */
211         23,     /* 30 SONYPI_EVENT_FNKEY_B */
212         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
213         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
214         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
215         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
216         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
217         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
218         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
219         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
220         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
221         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
222         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
223         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
224         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
225         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
226         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
227         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
228         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
229         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
230         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
231         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
232         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
233         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
234         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
235         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
236         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
237         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
238         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
239         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
240         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
241         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
242         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
243         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
244         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
245         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
246         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
247         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
248         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
249         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
250         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
251         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
252         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
253         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
254         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
255 };
256
257 static int sony_laptop_input_keycode_map[] = {
258         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
259         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
260         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
261         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
262         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
263         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
264         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
265         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
266         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
267         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
268         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
269         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
270         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
271         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
272         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
273         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
274         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
275         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
276         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
277         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
278         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
279         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
280         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
281         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
282         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
283         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
284         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
285         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
286         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
287         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
288         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
289         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
290         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
291         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
292         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
293         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
294         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
295         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
296         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
297         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
298         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
299         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
300         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
301         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
302         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
303         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
304         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
305         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
306         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
307         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
308         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
309         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
310         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
311         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
312         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
313         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
314         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
315         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
316         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
317         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
318 };
319
320 /* release buttons after a short delay if pressed */
321 static void do_sony_laptop_release_key(unsigned long unused)
322 {
323         struct sony_laptop_keypress kp;
324         unsigned long flags;
325
326         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
327
328         if (kfifo_out(&sony_laptop_input.fifo,
329                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
330                 input_report_key(kp.dev, kp.key, 0);
331                 input_sync(kp.dev);
332         }
333
334         /* If there is something in the fifo schedule next release. */
335         if (kfifo_len(&sony_laptop_input.fifo) != 0)
336                 mod_timer(&sony_laptop_input.release_key_timer,
337                           jiffies + msecs_to_jiffies(10));
338
339         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
340 }
341
342 /* forward event to the input subsystem */
343 static void sony_laptop_report_input_event(u8 event)
344 {
345         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
346         struct input_dev *key_dev = sony_laptop_input.key_dev;
347         struct sony_laptop_keypress kp = { NULL };
348
349         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
350                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
351                 /* Nothing, not all VAIOs generate this event */
352                 return;
353         }
354
355         /* report events */
356         switch (event) {
357         /* jog_dev events */
358         case SONYPI_EVENT_JOGDIAL_UP:
359         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
360                 input_report_rel(jog_dev, REL_WHEEL, 1);
361                 input_sync(jog_dev);
362                 return;
363
364         case SONYPI_EVENT_JOGDIAL_DOWN:
365         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
366                 input_report_rel(jog_dev, REL_WHEEL, -1);
367                 input_sync(jog_dev);
368                 return;
369
370         /* key_dev events */
371         case SONYPI_EVENT_JOGDIAL_PRESSED:
372                 kp.key = BTN_MIDDLE;
373                 kp.dev = jog_dev;
374                 break;
375
376         default:
377                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
378                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
379                         break;
380                 }
381                 if (sony_laptop_input_index[event] != -1) {
382                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
383                         if (kp.key != KEY_UNKNOWN)
384                                 kp.dev = key_dev;
385                 }
386                 break;
387         }
388
389         if (kp.dev) {
390                 input_report_key(kp.dev, kp.key, 1);
391                 /* we emit the scancode so we can always remap the key */
392                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
393                 input_sync(kp.dev);
394
395                 /* schedule key release */
396                 kfifo_in_locked(&sony_laptop_input.fifo,
397                                 (unsigned char *)&kp, sizeof(kp),
398                                 &sony_laptop_input.fifo_lock);
399                 mod_timer(&sony_laptop_input.release_key_timer,
400                           jiffies + msecs_to_jiffies(10));
401         } else
402                 dprintk("unknown input event %.2x\n", event);
403 }
404
405 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
406 {
407         struct input_dev *jog_dev;
408         struct input_dev *key_dev;
409         int i;
410         int error;
411
412         /* don't run again if already initialized */
413         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
414                 return 0;
415
416         /* kfifo */
417         spin_lock_init(&sony_laptop_input.fifo_lock);
418         error = kfifo_alloc(&sony_laptop_input.fifo,
419                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
420         if (error) {
421                 pr_err(DRV_PFX "kfifo_alloc failed\n");
422                 goto err_dec_users;
423         }
424
425         setup_timer(&sony_laptop_input.release_key_timer,
426                     do_sony_laptop_release_key, 0);
427
428         /* input keys */
429         key_dev = input_allocate_device();
430         if (!key_dev) {
431                 error = -ENOMEM;
432                 goto err_free_kfifo;
433         }
434
435         key_dev->name = "Sony Vaio Keys";
436         key_dev->id.bustype = BUS_ISA;
437         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
438         key_dev->dev.parent = &acpi_device->dev;
439
440         /* Initialize the Input Drivers: special keys */
441         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
442
443         __set_bit(EV_KEY, key_dev->evbit);
444         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
445         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
446         key_dev->keycode = &sony_laptop_input_keycode_map;
447         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
448                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
449         __clear_bit(KEY_RESERVED, key_dev->keybit);
450
451         error = input_register_device(key_dev);
452         if (error)
453                 goto err_free_keydev;
454
455         sony_laptop_input.key_dev = key_dev;
456
457         /* jogdial */
458         jog_dev = input_allocate_device();
459         if (!jog_dev) {
460                 error = -ENOMEM;
461                 goto err_unregister_keydev;
462         }
463
464         jog_dev->name = "Sony Vaio Jogdial";
465         jog_dev->id.bustype = BUS_ISA;
466         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
467         key_dev->dev.parent = &acpi_device->dev;
468
469         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
470         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
471
472         error = input_register_device(jog_dev);
473         if (error)
474                 goto err_free_jogdev;
475
476         sony_laptop_input.jog_dev = jog_dev;
477
478         return 0;
479
480 err_free_jogdev:
481         input_free_device(jog_dev);
482
483 err_unregister_keydev:
484         input_unregister_device(key_dev);
485         /* to avoid kref underflow below at input_free_device */
486         key_dev = NULL;
487
488 err_free_keydev:
489         input_free_device(key_dev);
490
491 err_free_kfifo:
492         kfifo_free(&sony_laptop_input.fifo);
493
494 err_dec_users:
495         atomic_dec(&sony_laptop_input.users);
496         return error;
497 }
498
499 static void sony_laptop_remove_input(void)
500 {
501         struct sony_laptop_keypress kp = { NULL };
502
503         /* Cleanup only after the last user has gone */
504         if (!atomic_dec_and_test(&sony_laptop_input.users))
505                 return;
506
507         del_timer_sync(&sony_laptop_input.release_key_timer);
508
509         /*
510          * Generate key-up events for remaining keys. Note that we don't
511          * need locking since nobody is adding new events to the kfifo.
512          */
513         while (kfifo_out(&sony_laptop_input.fifo,
514                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
515                 input_report_key(kp.dev, kp.key, 0);
516                 input_sync(kp.dev);
517         }
518
519         /* destroy input devs */
520         input_unregister_device(sony_laptop_input.key_dev);
521         sony_laptop_input.key_dev = NULL;
522
523         if (sony_laptop_input.jog_dev) {
524                 input_unregister_device(sony_laptop_input.jog_dev);
525                 sony_laptop_input.jog_dev = NULL;
526         }
527
528         kfifo_free(&sony_laptop_input.fifo);
529 }
530
531 /*********** Platform Device ***********/
532
533 static atomic_t sony_pf_users = ATOMIC_INIT(0);
534 static struct platform_driver sony_pf_driver = {
535         .driver = {
536                    .name = "sony-laptop",
537                    .owner = THIS_MODULE,
538                    }
539 };
540 static struct platform_device *sony_pf_device;
541
542 static int sony_pf_add(void)
543 {
544         int ret = 0;
545
546         /* don't run again if already initialized */
547         if (atomic_add_return(1, &sony_pf_users) > 1)
548                 return 0;
549
550         ret = platform_driver_register(&sony_pf_driver);
551         if (ret)
552                 goto out;
553
554         sony_pf_device = platform_device_alloc("sony-laptop", -1);
555         if (!sony_pf_device) {
556                 ret = -ENOMEM;
557                 goto out_platform_registered;
558         }
559
560         ret = platform_device_add(sony_pf_device);
561         if (ret)
562                 goto out_platform_alloced;
563
564         return 0;
565
566       out_platform_alloced:
567         platform_device_put(sony_pf_device);
568         sony_pf_device = NULL;
569       out_platform_registered:
570         platform_driver_unregister(&sony_pf_driver);
571       out:
572         atomic_dec(&sony_pf_users);
573         return ret;
574 }
575
576 static void sony_pf_remove(void)
577 {
578         /* deregister only after the last user has gone */
579         if (!atomic_dec_and_test(&sony_pf_users))
580                 return;
581
582         platform_device_unregister(sony_pf_device);
583         platform_driver_unregister(&sony_pf_driver);
584 }
585
586 /*********** SNC (SNY5001) Device ***********/
587
588 /* the device uses 1-based values, while the backlight subsystem uses
589    0-based values */
590 #define SONY_MAX_BRIGHTNESS     8
591
592 #define SNC_VALIDATE_IN         0
593 #define SNC_VALIDATE_OUT        1
594
595 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
596                               char *);
597 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
598                                const char *, size_t);
599 static int boolean_validate(const int, const int);
600 static int brightness_default_validate(const int, const int);
601
602 struct sony_nc_value {
603         char *name;             /* name of the entry */
604         char **acpiget;         /* names of the ACPI get function */
605         char **acpiset;         /* names of the ACPI set function */
606         int (*validate)(const int, const int);  /* input/output validation */
607         int value;              /* current setting */
608         int valid;              /* Has ever been set */
609         int debug;              /* active only in debug mode ? */
610         struct device_attribute devattr;        /* sysfs attribute */
611 };
612
613 #define SNC_HANDLE_NAMES(_name, _values...) \
614         static char *snc_##_name[] = { _values, NULL }
615
616 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
617         { \
618                 .name           = __stringify(_name), \
619                 .acpiget        = _getters, \
620                 .acpiset        = _setters, \
621                 .validate       = _validate, \
622                 .debug          = _debug, \
623                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
624         }
625
626 #define SNC_HANDLE_NULL { .name = NULL }
627
628 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
629
630 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
631 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
632
633 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
634 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
635
636 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
637 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
638
639 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
640 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
641
642 SNC_HANDLE_NAMES(lidstate_get, "GLID");
643
644 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
645 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
646
647 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
648 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
649
650 SNC_HANDLE_NAMES(PID_get, "GPID");
651
652 SNC_HANDLE_NAMES(CTR_get, "GCTR");
653 SNC_HANDLE_NAMES(CTR_set, "SCTR");
654
655 SNC_HANDLE_NAMES(PCR_get, "GPCR");
656 SNC_HANDLE_NAMES(PCR_set, "SPCR");
657
658 SNC_HANDLE_NAMES(CMI_get, "GCMI");
659 SNC_HANDLE_NAMES(CMI_set, "SCMI");
660
661 static struct sony_nc_value sony_nc_values[] = {
662         SNC_HANDLE(brightness_default, snc_brightness_def_get,
663                         snc_brightness_def_set, brightness_default_validate, 0),
664         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
665         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
666         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
667                         boolean_validate, 0),
668         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
669                         boolean_validate, 1),
670         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
671                         boolean_validate, 0),
672         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
673                         boolean_validate, 0),
674         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
675                         boolean_validate, 0),
676         /* unknown methods */
677         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
678         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
679         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
680         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
681         SNC_HANDLE_NULL
682 };
683
684 static acpi_handle sony_nc_acpi_handle;
685 static struct acpi_device *sony_nc_acpi_device = NULL;
686
687 /*
688  * acpi_evaluate_object wrappers
689  */
690 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
691 {
692         struct acpi_buffer output;
693         union acpi_object out_obj;
694         acpi_status status;
695
696         output.length = sizeof(out_obj);
697         output.pointer = &out_obj;
698
699         status = acpi_evaluate_object(handle, name, NULL, &output);
700         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
701                 *result = out_obj.integer.value;
702                 return 0;
703         }
704
705         pr_warn(DRV_PFX "acpi_callreadfunc failed\n");
706
707         return -1;
708 }
709
710 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
711                             int *result)
712 {
713         struct acpi_object_list params;
714         union acpi_object in_obj;
715         struct acpi_buffer output;
716         union acpi_object out_obj;
717         acpi_status status;
718
719         params.count = 1;
720         params.pointer = &in_obj;
721         in_obj.type = ACPI_TYPE_INTEGER;
722         in_obj.integer.value = value;
723
724         output.length = sizeof(out_obj);
725         output.pointer = &out_obj;
726
727         status = acpi_evaluate_object(handle, name, &params, &output);
728         if (status == AE_OK) {
729                 if (result != NULL) {
730                         if (out_obj.type != ACPI_TYPE_INTEGER) {
731                                 pr_warn(DRV_PFX "acpi_evaluate_object bad "
732                                        "return type\n");
733                                 return -1;
734                         }
735                         *result = out_obj.integer.value;
736                 }
737                 return 0;
738         }
739
740         pr_warn(DRV_PFX "acpi_evaluate_object failed\n");
741
742         return -1;
743 }
744
745 struct sony_nc_handles {
746         u16 cap[0x10];
747         struct device_attribute devattr;
748 };
749
750 static struct sony_nc_handles *handles;
751
752 static ssize_t sony_nc_handles_show(struct device *dev,
753                 struct device_attribute *attr, char *buffer)
754 {
755         ssize_t len = 0;
756         int i;
757
758         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
759                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
760                                 handles->cap[i]);
761         }
762         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
763
764         return len;
765 }
766
767 static int sony_nc_handles_setup(struct platform_device *pd)
768 {
769         int i;
770         int result;
771
772         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
773         if (!handles)
774                 return -ENOMEM;
775
776         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
777                 if (!acpi_callsetfunc(sony_nc_acpi_handle,
778                                         "SN00", i + 0x20, &result)) {
779                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
780                                         result, i);
781                         handles->cap[i] = result;
782                 }
783         }
784
785         if (debug) {
786                 sysfs_attr_init(&handles->devattr.attr);
787                 handles->devattr.attr.name = "handles";
788                 handles->devattr.attr.mode = S_IRUGO;
789                 handles->devattr.show = sony_nc_handles_show;
790
791                 /* allow reading capabilities via sysfs */
792                 if (device_create_file(&pd->dev, &handles->devattr)) {
793                         kfree(handles);
794                         handles = NULL;
795                         return -1;
796                 }
797         }
798
799         return 0;
800 }
801
802 static int sony_nc_handles_cleanup(struct platform_device *pd)
803 {
804         if (handles) {
805                 if (debug)
806                         device_remove_file(&pd->dev, &handles->devattr);
807                 kfree(handles);
808                 handles = NULL;
809         }
810         return 0;
811 }
812
813 static int sony_find_snc_handle(int handle)
814 {
815         int i;
816
817         /* not initialized yet, return early */
818         if (!handles)
819                 return -1;
820
821         for (i = 0; i < 0x10; i++) {
822                 if (handles->cap[i] == handle) {
823                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
824                                         handle, i);
825                         return i;
826                 }
827         }
828         dprintk("handle 0x%.4x not found\n", handle);
829         return -1;
830 }
831
832 static int sony_call_snc_handle(int handle, int argument, int *result)
833 {
834         int ret = 0;
835         int offset = sony_find_snc_handle(handle);
836
837         if (offset < 0)
838                 return -1;
839
840         ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
841                         result);
842         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
843                         *result);
844         return ret;
845 }
846
847 /*
848  * sony_nc_values input/output validate functions
849  */
850
851 /* brightness_default_validate:
852  *
853  * manipulate input output values to keep consistency with the
854  * backlight framework for which brightness values are 0-based.
855  */
856 static int brightness_default_validate(const int direction, const int value)
857 {
858         switch (direction) {
859                 case SNC_VALIDATE_OUT:
860                         return value - 1;
861                 case SNC_VALIDATE_IN:
862                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
863                                 return value + 1;
864         }
865         return -EINVAL;
866 }
867
868 /* boolean_validate:
869  *
870  * on input validate boolean values 0/1, on output just pass the
871  * received value.
872  */
873 static int boolean_validate(const int direction, const int value)
874 {
875         if (direction == SNC_VALIDATE_IN) {
876                 if (value != 0 && value != 1)
877                         return -EINVAL;
878         }
879         return value;
880 }
881
882 /*
883  * Sysfs show/store common to all sony_nc_values
884  */
885 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
886                               char *buffer)
887 {
888         int value;
889         struct sony_nc_value *item =
890             container_of(attr, struct sony_nc_value, devattr);
891
892         if (!*item->acpiget)
893                 return -EIO;
894
895         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
896                 return -EIO;
897
898         if (item->validate)
899                 value = item->validate(SNC_VALIDATE_OUT, value);
900
901         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
902 }
903
904 static ssize_t sony_nc_sysfs_store(struct device *dev,
905                                struct device_attribute *attr,
906                                const char *buffer, size_t count)
907 {
908         int value;
909         struct sony_nc_value *item =
910             container_of(attr, struct sony_nc_value, devattr);
911
912         if (!item->acpiset)
913                 return -EIO;
914
915         if (count > 31)
916                 return -EINVAL;
917
918         value = simple_strtoul(buffer, NULL, 10);
919
920         if (item->validate)
921                 value = item->validate(SNC_VALIDATE_IN, value);
922
923         if (value < 0)
924                 return value;
925
926         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
927                 return -EIO;
928         item->value = value;
929         item->valid = 1;
930         return count;
931 }
932
933
934 /*
935  * Backlight device
936  */
937 static int sony_backlight_update_status(struct backlight_device *bd)
938 {
939         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
940                                 bd->props.brightness + 1, NULL);
941 }
942
943 static int sony_backlight_get_brightness(struct backlight_device *bd)
944 {
945         int value;
946
947         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
948                 return 0;
949         /* brightness levels are 1-based, while backlight ones are 0-based */
950         return value - 1;
951 }
952
953 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
954 {
955         int result;
956         int *handle = (int *)bl_get_data(bd);
957
958         sony_call_snc_handle(*handle, 0x0200, &result);
959
960         return result & 0xff;
961 }
962
963 static int sony_nc_update_status_ng(struct backlight_device *bd)
964 {
965         int value, result;
966         int *handle = (int *)bl_get_data(bd);
967
968         value = bd->props.brightness;
969         if (sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result))
970                 return -EIO;
971
972         return value;
973 }
974
975 static const struct backlight_ops sony_backlight_ops = {
976         .options = BL_CORE_SUSPENDRESUME,
977         .update_status = sony_backlight_update_status,
978         .get_brightness = sony_backlight_get_brightness,
979 };
980 static const struct backlight_ops sony_backlight_ng_ops = {
981         .options = BL_CORE_SUSPENDRESUME,
982         .update_status = sony_nc_update_status_ng,
983         .get_brightness = sony_nc_get_brightness_ng,
984 };
985 static int backlight_ng_handle;
986 static struct backlight_device *sony_backlight_device;
987
988 /*
989  * New SNC-only Vaios event mapping to driver known keys
990  */
991 struct sony_nc_event {
992         u8      data;
993         u8      event;
994 };
995
996 static struct sony_nc_event sony_100_events[] = {
997         { 0x90, SONYPI_EVENT_PKEY_P1 },
998         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
999         { 0x91, SONYPI_EVENT_PKEY_P2 },
1000         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1001         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1002         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1003         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1004         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1005         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1006         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1007         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1008         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1009         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1010         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1011         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1012         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1013         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1014         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1015         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1016         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1017         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1018         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1019         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1020         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1021         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1022         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1023         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1024         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1025         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1026         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1027         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1028         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1029         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1030         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1031         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1032         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1033         { 0, 0 },
1034 };
1035
1036 static struct sony_nc_event sony_127_events[] = {
1037         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1038         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1039         { 0x82, SONYPI_EVENT_PKEY_P1 },
1040         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1041         { 0x83, SONYPI_EVENT_PKEY_P2 },
1042         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1043         { 0x84, SONYPI_EVENT_PKEY_P3 },
1044         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1045         { 0x85, SONYPI_EVENT_PKEY_P4 },
1046         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1047         { 0x86, SONYPI_EVENT_PKEY_P5 },
1048         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1049         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1050         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1051         { 0, 0 },
1052 };
1053
1054 /*
1055  * ACPI callbacks
1056  */
1057 static void sony_nc_notify(struct acpi_device *device, u32 event)
1058 {
1059         u32 ev = event;
1060
1061         if (ev >= 0x90) {
1062                 /* New-style event */
1063                 int result;
1064                 int key_handle = 0;
1065                 ev -= 0x90;
1066
1067                 if (sony_find_snc_handle(0x100) == ev)
1068                         key_handle = 0x100;
1069                 if (sony_find_snc_handle(0x127) == ev)
1070                         key_handle = 0x127;
1071
1072                 if (key_handle) {
1073                         struct sony_nc_event *key_event;
1074
1075                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1076                                 dprintk("sony_nc_notify, unable to decode"
1077                                         " event 0x%.2x 0x%.2x\n", key_handle,
1078                                         ev);
1079                                 /* restore the original event */
1080                                 ev = event;
1081                         } else {
1082                                 ev = result & 0xFF;
1083
1084                                 if (key_handle == 0x100)
1085                                         key_event = sony_100_events;
1086                                 else
1087                                         key_event = sony_127_events;
1088
1089                                 for (; key_event->data; key_event++) {
1090                                         if (key_event->data == ev) {
1091                                                 ev = key_event->event;
1092                                                 break;
1093                                         }
1094                                 }
1095
1096                                 if (!key_event->data)
1097                                         pr_info(DRV_PFX
1098                                                         "Unknown event: 0x%x 0x%x\n",
1099                                                         key_handle,
1100                                                         ev);
1101                                 else
1102                                         sony_laptop_report_input_event(ev);
1103                         }
1104                 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1105                         sony_nc_rfkill_update();
1106                         return;
1107                 }
1108         } else
1109                 sony_laptop_report_input_event(ev);
1110
1111         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1112         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1113 }
1114
1115 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1116                                       void *context, void **return_value)
1117 {
1118         struct acpi_device_info *info;
1119
1120         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1121                 pr_warn(DRV_PFX "method: name: %4.4s, args %X\n",
1122                         (char *)&info->name, info->param_count);
1123
1124                 kfree(info);
1125         }
1126
1127         return AE_OK;
1128 }
1129
1130 /*
1131  * ACPI device
1132  */
1133 static int sony_nc_function_setup(struct acpi_device *device)
1134 {
1135         int result;
1136
1137         /* Enable all events */
1138         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1139
1140         /* Setup hotkeys */
1141         sony_call_snc_handle(0x0100, 0, &result);
1142         sony_call_snc_handle(0x0101, 0, &result);
1143         sony_call_snc_handle(0x0102, 0x100, &result);
1144         sony_call_snc_handle(0x0127, 0, &result);
1145
1146         return 0;
1147 }
1148
1149 static int sony_nc_resume(struct acpi_device *device)
1150 {
1151         struct sony_nc_value *item;
1152         acpi_handle handle;
1153
1154         for (item = sony_nc_values; item->name; item++) {
1155                 int ret;
1156
1157                 if (!item->valid)
1158                         continue;
1159                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1160                                        item->value, NULL);
1161                 if (ret < 0) {
1162                         pr_err(DRV_PFX "%s: %d\n", __func__, ret);
1163                         break;
1164                 }
1165         }
1166
1167         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1168                                          &handle))) {
1169                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1170                         dprintk("ECON Method failed\n");
1171         }
1172
1173         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1174                                          &handle))) {
1175                 dprintk("Doing SNC setup\n");
1176                 sony_nc_function_setup(device);
1177         }
1178
1179         /* re-read rfkill state */
1180         sony_nc_rfkill_update();
1181
1182         /* restore kbd backlight states */
1183         sony_nc_kbd_backlight_resume();
1184
1185         return 0;
1186 }
1187
1188 static void sony_nc_rfkill_cleanup(void)
1189 {
1190         int i;
1191
1192         for (i = 0; i < N_SONY_RFKILL; i++) {
1193                 if (sony_rfkill_devices[i]) {
1194                         rfkill_unregister(sony_rfkill_devices[i]);
1195                         rfkill_destroy(sony_rfkill_devices[i]);
1196                 }
1197         }
1198 }
1199
1200 static int sony_nc_rfkill_set(void *data, bool blocked)
1201 {
1202         int result;
1203         int argument = sony_rfkill_address[(long) data] + 0x100;
1204
1205         if (!blocked)
1206                 argument |= 0xff0000;
1207
1208         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1209 }
1210
1211 static const struct rfkill_ops sony_rfkill_ops = {
1212         .set_block = sony_nc_rfkill_set,
1213 };
1214
1215 static int sony_nc_setup_rfkill(struct acpi_device *device,
1216                                 enum sony_nc_rfkill nc_type)
1217 {
1218         int err = 0;
1219         struct rfkill *rfk;
1220         enum rfkill_type type;
1221         const char *name;
1222         int result;
1223         bool hwblock;
1224
1225         switch (nc_type) {
1226         case SONY_WIFI:
1227                 type = RFKILL_TYPE_WLAN;
1228                 name = "sony-wifi";
1229                 break;
1230         case SONY_BLUETOOTH:
1231                 type = RFKILL_TYPE_BLUETOOTH;
1232                 name = "sony-bluetooth";
1233                 break;
1234         case SONY_WWAN:
1235                 type = RFKILL_TYPE_WWAN;
1236                 name = "sony-wwan";
1237                 break;
1238         case SONY_WIMAX:
1239                 type = RFKILL_TYPE_WIMAX;
1240                 name = "sony-wimax";
1241                 break;
1242         default:
1243                 return -EINVAL;
1244         }
1245
1246         rfk = rfkill_alloc(name, &device->dev, type,
1247                            &sony_rfkill_ops, (void *)nc_type);
1248         if (!rfk)
1249                 return -ENOMEM;
1250
1251         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1252         hwblock = !(result & 0x1);
1253         rfkill_set_hw_state(rfk, hwblock);
1254
1255         err = rfkill_register(rfk);
1256         if (err) {
1257                 rfkill_destroy(rfk);
1258                 return err;
1259         }
1260         sony_rfkill_devices[nc_type] = rfk;
1261         return err;
1262 }
1263
1264 static void sony_nc_rfkill_update(void)
1265 {
1266         enum sony_nc_rfkill i;
1267         int result;
1268         bool hwblock;
1269
1270         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1271         hwblock = !(result & 0x1);
1272
1273         for (i = 0; i < N_SONY_RFKILL; i++) {
1274                 int argument = sony_rfkill_address[i];
1275
1276                 if (!sony_rfkill_devices[i])
1277                         continue;
1278
1279                 if (hwblock) {
1280                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1281                                 /* we already know we're blocked */
1282                         }
1283                         continue;
1284                 }
1285
1286                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1287                 rfkill_set_states(sony_rfkill_devices[i],
1288                                   !(result & 0xf), false);
1289         }
1290 }
1291
1292 static void sony_nc_rfkill_setup(struct acpi_device *device)
1293 {
1294         int offset;
1295         u8 dev_code, i;
1296         acpi_status status;
1297         struct acpi_object_list params;
1298         union acpi_object in_obj;
1299         union acpi_object *device_enum;
1300         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1301
1302         offset = sony_find_snc_handle(0x124);
1303         if (offset == -1) {
1304                 offset = sony_find_snc_handle(0x135);
1305                 if (offset == -1)
1306                         return;
1307                 else
1308                         sony_rfkill_handle = 0x135;
1309         } else
1310                 sony_rfkill_handle = 0x124;
1311         dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1312
1313         /* need to read the whole buffer returned by the acpi call to SN06
1314          * here otherwise we may miss some features
1315          */
1316         params.count = 1;
1317         params.pointer = &in_obj;
1318         in_obj.type = ACPI_TYPE_INTEGER;
1319         in_obj.integer.value = offset;
1320         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1321                         &buffer);
1322         if (ACPI_FAILURE(status)) {
1323                 dprintk("Radio device enumeration failed\n");
1324                 return;
1325         }
1326
1327         device_enum = (union acpi_object *) buffer.pointer;
1328         if (!device_enum) {
1329                 pr_err(DRV_PFX "No SN06 return object.");
1330                 goto out_no_enum;
1331         }
1332         if (device_enum->type != ACPI_TYPE_BUFFER) {
1333                 pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
1334                                 device_enum->type);
1335                 goto out_no_enum;
1336         }
1337
1338         /* the buffer is filled with magic numbers describing the devices
1339          * available, 0xff terminates the enumeration
1340          */
1341         for (i = 0; i < device_enum->buffer.length; i++) {
1342
1343                 dev_code = *(device_enum->buffer.pointer + i);
1344                 if (dev_code == 0xff)
1345                         break;
1346
1347                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1348
1349                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1350                         sony_nc_setup_rfkill(device, SONY_WIFI);
1351
1352                 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1353                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1354
1355                 if ((0xf0 & dev_code) == 0x20 &&
1356                                 !sony_rfkill_devices[SONY_WWAN])
1357                         sony_nc_setup_rfkill(device, SONY_WWAN);
1358
1359                 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1360                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1361         }
1362
1363 out_no_enum:
1364         kfree(buffer.pointer);
1365         return;
1366 }
1367
1368 /* Keyboard backlight feature */
1369 #define KBDBL_HANDLER   0x137
1370 #define KBDBL_PRESENT   0xB00
1371 #define SET_MODE        0xC00
1372 #define SET_STATE       0xD00
1373 #define SET_TIMEOUT     0xE00
1374
1375 struct kbd_backlight {
1376         int mode;
1377         int timeout;
1378         struct device_attribute mode_attr;
1379         struct device_attribute timeout_attr;
1380 };
1381
1382 static struct kbd_backlight *kbdbl_handle;
1383
1384 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1385 {
1386         int result;
1387
1388         if (value > 1)
1389                 return -EINVAL;
1390
1391         if (sony_call_snc_handle(KBDBL_HANDLER,
1392                                 (value << 0x10) | SET_MODE, &result))
1393                 return -EIO;
1394
1395         /* Try to turn the light on/off immediately */
1396         sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
1397                         &result);
1398
1399         kbdbl_handle->mode = value;
1400
1401         return 0;
1402 }
1403
1404 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1405                 struct device_attribute *attr,
1406                 const char *buffer, size_t count)
1407 {
1408         int ret = 0;
1409         unsigned long value;
1410
1411         if (count > 31)
1412                 return -EINVAL;
1413
1414         if (strict_strtoul(buffer, 10, &value))
1415                 return -EINVAL;
1416
1417         ret = __sony_nc_kbd_backlight_mode_set(value);
1418         if (ret < 0)
1419                 return ret;
1420
1421         return count;
1422 }
1423
1424 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1425                 struct device_attribute *attr, char *buffer)
1426 {
1427         ssize_t count = 0;
1428         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1429         return count;
1430 }
1431
1432 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1433 {
1434         int result;
1435
1436         if (value > 3)
1437                 return -EINVAL;
1438
1439         if (sony_call_snc_handle(KBDBL_HANDLER,
1440                                 (value << 0x10) | SET_TIMEOUT, &result))
1441                 return -EIO;
1442
1443         kbdbl_handle->timeout = value;
1444
1445         return 0;
1446 }
1447
1448 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1449                 struct device_attribute *attr,
1450                 const char *buffer, size_t count)
1451 {
1452         int ret = 0;
1453         unsigned long value;
1454
1455         if (count > 31)
1456                 return -EINVAL;
1457
1458         if (strict_strtoul(buffer, 10, &value))
1459                 return -EINVAL;
1460
1461         ret = __sony_nc_kbd_backlight_timeout_set(value);
1462         if (ret < 0)
1463                 return ret;
1464
1465         return count;
1466 }
1467
1468 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1469                 struct device_attribute *attr, char *buffer)
1470 {
1471         ssize_t count = 0;
1472         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1473         return count;
1474 }
1475
1476 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1477 {
1478         int result;
1479
1480         if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
1481                 return 0;
1482         if (!(result & 0x02))
1483                 return 0;
1484
1485         kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1486         if (!kbdbl_handle)
1487                 return -ENOMEM;
1488
1489         sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1490         kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1491         kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1492         kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1493         kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1494
1495         sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1496         kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1497         kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1498         kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1499         kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1500
1501         if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1502                 goto outkzalloc;
1503
1504         if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1505                 goto outmode;
1506
1507         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1508         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1509
1510         return 0;
1511
1512 outmode:
1513         device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1514 outkzalloc:
1515         kfree(kbdbl_handle);
1516         kbdbl_handle = NULL;
1517         return -1;
1518 }
1519
1520 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1521 {
1522         if (kbdbl_handle) {
1523                 int result;
1524
1525                 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1526                 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1527
1528                 /* restore the default hw behaviour */
1529                 sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
1530                 sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
1531
1532                 kfree(kbdbl_handle);
1533         }
1534         return 0;
1535 }
1536
1537 static void sony_nc_kbd_backlight_resume(void)
1538 {
1539         int ignore = 0;
1540
1541         if (!kbdbl_handle)
1542                 return;
1543
1544         if (kbdbl_handle->mode == 0)
1545                 sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
1546
1547         if (kbdbl_handle->timeout != 0)
1548                 sony_call_snc_handle(KBDBL_HANDLER,
1549                                 (kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
1550                                 &ignore);
1551 }
1552
1553 static void sony_nc_backlight_setup(void)
1554 {
1555         acpi_handle unused;
1556         int max_brightness = 0;
1557         const struct backlight_ops *ops = NULL;
1558         struct backlight_properties props;
1559
1560         if (sony_find_snc_handle(0x12f) != -1) {
1561                 backlight_ng_handle = 0x12f;
1562                 ops = &sony_backlight_ng_ops;
1563                 max_brightness = 0xff;
1564
1565         } else if (sony_find_snc_handle(0x137) != -1) {
1566                 backlight_ng_handle = 0x137;
1567                 ops = &sony_backlight_ng_ops;
1568                 max_brightness = 0xff;
1569
1570         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1571                                                 &unused))) {
1572                 ops = &sony_backlight_ops;
1573                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1574
1575         } else
1576                 return;
1577
1578         memset(&props, 0, sizeof(struct backlight_properties));
1579         props.type = BACKLIGHT_PLATFORM;
1580         props.max_brightness = max_brightness;
1581         sony_backlight_device = backlight_device_register("sony", NULL,
1582                                                           &backlight_ng_handle,
1583                                                           ops, &props);
1584
1585         if (IS_ERR(sony_backlight_device)) {
1586                 pr_warning(DRV_PFX "unable to register backlight device\n");
1587                 sony_backlight_device = NULL;
1588         } else
1589                 sony_backlight_device->props.brightness =
1590                     ops->get_brightness(sony_backlight_device);
1591 }
1592
1593 static void sony_nc_backlight_cleanup(void)
1594 {
1595         if (sony_backlight_device)
1596                 backlight_device_unregister(sony_backlight_device);
1597 }
1598
1599 static int sony_nc_add(struct acpi_device *device)
1600 {
1601         acpi_status status;
1602         int result = 0;
1603         acpi_handle handle;
1604         struct sony_nc_value *item;
1605
1606         pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME,
1607                         SONY_LAPTOP_DRIVER_VERSION);
1608
1609         sony_nc_acpi_device = device;
1610         strcpy(acpi_device_class(device), "sony/hotkey");
1611
1612         sony_nc_acpi_handle = device->handle;
1613
1614         /* read device status */
1615         result = acpi_bus_get_status(device);
1616         /* bail IFF the above call was successful and the device is not present */
1617         if (!result && !device->status.present) {
1618                 dprintk("Device not present\n");
1619                 result = -ENODEV;
1620                 goto outwalk;
1621         }
1622
1623         result = sony_pf_add();
1624         if (result)
1625                 goto outpresent;
1626
1627         if (debug) {
1628                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1629                                 sony_nc_acpi_handle, 1, sony_walk_callback,
1630                                 NULL, NULL, NULL);
1631                 if (ACPI_FAILURE(status)) {
1632                         pr_warn(DRV_PFX "unable to walk acpi resources\n");
1633                         result = -ENODEV;
1634                         goto outpresent;
1635                 }
1636         }
1637
1638         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1639                                          &handle))) {
1640                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1641                         dprintk("ECON Method failed\n");
1642         }
1643
1644         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1645                                          &handle))) {
1646                 dprintk("Doing SNC setup\n");
1647                 result = sony_nc_handles_setup(sony_pf_device);
1648                 if (result)
1649                         goto outpresent;
1650                 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1651                 if (result)
1652                         goto outsnc;
1653                 sony_nc_function_setup(device);
1654                 sony_nc_rfkill_setup(device);
1655         }
1656
1657         /* setup input devices and helper fifo */
1658         result = sony_laptop_setup_input(device);
1659         if (result) {
1660                 pr_err(DRV_PFX "Unable to create input devices.\n");
1661                 goto outkbdbacklight;
1662         }
1663
1664         if (acpi_video_backlight_support()) {
1665                 pr_info(DRV_PFX "brightness ignored, must be "
1666                        "controlled by ACPI video driver\n");
1667         } else {
1668                 sony_nc_backlight_setup();
1669         }
1670
1671         /* create sony_pf sysfs attributes related to the SNC device */
1672         for (item = sony_nc_values; item->name; ++item) {
1673
1674                 if (!debug && item->debug)
1675                         continue;
1676
1677                 /* find the available acpiget as described in the DSDT */
1678                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1679                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1680                                                          *item->acpiget,
1681                                                          &handle))) {
1682                                 dprintk("Found %s getter: %s\n",
1683                                                 item->name, *item->acpiget);
1684                                 item->devattr.attr.mode |= S_IRUGO;
1685                                 break;
1686                         }
1687                 }
1688
1689                 /* find the available acpiset as described in the DSDT */
1690                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1691                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1692                                                          *item->acpiset,
1693                                                          &handle))) {
1694                                 dprintk("Found %s setter: %s\n",
1695                                                 item->name, *item->acpiset);
1696                                 item->devattr.attr.mode |= S_IWUSR;
1697                                 break;
1698                         }
1699                 }
1700
1701                 if (item->devattr.attr.mode != 0) {
1702                         result =
1703                             device_create_file(&sony_pf_device->dev,
1704                                                &item->devattr);
1705                         if (result)
1706                                 goto out_sysfs;
1707                 }
1708         }
1709
1710         return 0;
1711
1712       out_sysfs:
1713         for (item = sony_nc_values; item->name; ++item) {
1714                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1715         }
1716         sony_nc_backlight_cleanup();
1717
1718         sony_laptop_remove_input();
1719
1720       outkbdbacklight:
1721         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1722
1723       outsnc:
1724         sony_nc_handles_cleanup(sony_pf_device);
1725
1726       outpresent:
1727         sony_pf_remove();
1728
1729       outwalk:
1730         sony_nc_rfkill_cleanup();
1731         return result;
1732 }
1733
1734 static int sony_nc_remove(struct acpi_device *device, int type)
1735 {
1736         struct sony_nc_value *item;
1737
1738         sony_nc_backlight_cleanup();
1739
1740         sony_nc_acpi_device = NULL;
1741
1742         for (item = sony_nc_values; item->name; ++item) {
1743                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1744         }
1745
1746         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1747         sony_nc_handles_cleanup(sony_pf_device);
1748         sony_pf_remove();
1749         sony_laptop_remove_input();
1750         sony_nc_rfkill_cleanup();
1751         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1752
1753         return 0;
1754 }
1755
1756 static const struct acpi_device_id sony_device_ids[] = {
1757         {SONY_NC_HID, 0},
1758         {SONY_PIC_HID, 0},
1759         {"", 0},
1760 };
1761 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1762
1763 static const struct acpi_device_id sony_nc_device_ids[] = {
1764         {SONY_NC_HID, 0},
1765         {"", 0},
1766 };
1767
1768 static struct acpi_driver sony_nc_driver = {
1769         .name = SONY_NC_DRIVER_NAME,
1770         .class = SONY_NC_CLASS,
1771         .ids = sony_nc_device_ids,
1772         .owner = THIS_MODULE,
1773         .ops = {
1774                 .add = sony_nc_add,
1775                 .remove = sony_nc_remove,
1776                 .resume = sony_nc_resume,
1777                 .notify = sony_nc_notify,
1778                 },
1779 };
1780
1781 /*********** SPIC (SNY6001) Device ***********/
1782
1783 #define SONYPI_DEVICE_TYPE1     0x00000001
1784 #define SONYPI_DEVICE_TYPE2     0x00000002
1785 #define SONYPI_DEVICE_TYPE3     0x00000004
1786
1787 #define SONYPI_TYPE1_OFFSET     0x04
1788 #define SONYPI_TYPE2_OFFSET     0x12
1789 #define SONYPI_TYPE3_OFFSET     0x12
1790
1791 struct sony_pic_ioport {
1792         struct acpi_resource_io io1;
1793         struct acpi_resource_io io2;
1794         struct list_head        list;
1795 };
1796
1797 struct sony_pic_irq {
1798         struct acpi_resource_irq        irq;
1799         struct list_head                list;
1800 };
1801
1802 struct sonypi_eventtypes {
1803         u8                      data;
1804         unsigned long           mask;
1805         struct sonypi_event     *events;
1806 };
1807
1808 struct sony_pic_dev {
1809         struct acpi_device              *acpi_dev;
1810         struct sony_pic_irq             *cur_irq;
1811         struct sony_pic_ioport          *cur_ioport;
1812         struct list_head                interrupts;
1813         struct list_head                ioports;
1814         struct mutex                    lock;
1815         struct sonypi_eventtypes        *event_types;
1816         int                             (*handle_irq)(const u8, const u8);
1817         int                             model;
1818         u16                             evport_offset;
1819         u8                              camera_power;
1820         u8                              bluetooth_power;
1821         u8                              wwan_power;
1822 };
1823
1824 static struct sony_pic_dev spic_dev = {
1825         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1826         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1827 };
1828
1829 static int spic_drv_registered;
1830
1831 /* Event masks */
1832 #define SONYPI_JOGGER_MASK                      0x00000001
1833 #define SONYPI_CAPTURE_MASK                     0x00000002
1834 #define SONYPI_FNKEY_MASK                       0x00000004
1835 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1836 #define SONYPI_PKEY_MASK                        0x00000010
1837 #define SONYPI_BACK_MASK                        0x00000020
1838 #define SONYPI_HELP_MASK                        0x00000040
1839 #define SONYPI_LID_MASK                         0x00000080
1840 #define SONYPI_ZOOM_MASK                        0x00000100
1841 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1842 #define SONYPI_MEYE_MASK                        0x00000400
1843 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1844 #define SONYPI_BATTERY_MASK                     0x00001000
1845 #define SONYPI_WIRELESS_MASK                    0x00002000
1846
1847 struct sonypi_event {
1848         u8      data;
1849         u8      event;
1850 };
1851
1852 /* The set of possible button release events */
1853 static struct sonypi_event sonypi_releaseev[] = {
1854         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1855         { 0, 0 }
1856 };
1857
1858 /* The set of possible jogger events  */
1859 static struct sonypi_event sonypi_joggerev[] = {
1860         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1861         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1862         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1863         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1864         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1865         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1866         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1867         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1868         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1869         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1870         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1871         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1872         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1873         { 0, 0 }
1874 };
1875
1876 /* The set of possible capture button events */
1877 static struct sonypi_event sonypi_captureev[] = {
1878         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1879         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1880         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1881         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1882         { 0, 0 }
1883 };
1884
1885 /* The set of possible fnkeys events */
1886 static struct sonypi_event sonypi_fnkeyev[] = {
1887         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1888         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1889         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1890         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1891         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1892         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1893         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1894         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1895         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1896         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1897         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1898         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1899         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1900         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1901         { 0x21, SONYPI_EVENT_FNKEY_1 },
1902         { 0x22, SONYPI_EVENT_FNKEY_2 },
1903         { 0x31, SONYPI_EVENT_FNKEY_D },
1904         { 0x32, SONYPI_EVENT_FNKEY_E },
1905         { 0x33, SONYPI_EVENT_FNKEY_F },
1906         { 0x34, SONYPI_EVENT_FNKEY_S },
1907         { 0x35, SONYPI_EVENT_FNKEY_B },
1908         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1909         { 0, 0 }
1910 };
1911
1912 /* The set of possible program key events */
1913 static struct sonypi_event sonypi_pkeyev[] = {
1914         { 0x01, SONYPI_EVENT_PKEY_P1 },
1915         { 0x02, SONYPI_EVENT_PKEY_P2 },
1916         { 0x04, SONYPI_EVENT_PKEY_P3 },
1917         { 0x20, SONYPI_EVENT_PKEY_P1 },
1918         { 0, 0 }
1919 };
1920
1921 /* The set of possible bluetooth events */
1922 static struct sonypi_event sonypi_blueev[] = {
1923         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1924         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1925         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1926         { 0, 0 }
1927 };
1928
1929 /* The set of possible wireless events */
1930 static struct sonypi_event sonypi_wlessev[] = {
1931         { 0x59, SONYPI_EVENT_IGNORE },
1932         { 0x5a, SONYPI_EVENT_IGNORE },
1933         { 0, 0 }
1934 };
1935
1936 /* The set of possible back button events */
1937 static struct sonypi_event sonypi_backev[] = {
1938         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1939         { 0, 0 }
1940 };
1941
1942 /* The set of possible help button events */
1943 static struct sonypi_event sonypi_helpev[] = {
1944         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1945         { 0, 0 }
1946 };
1947
1948
1949 /* The set of possible lid events */
1950 static struct sonypi_event sonypi_lidev[] = {
1951         { 0x51, SONYPI_EVENT_LID_CLOSED },
1952         { 0x50, SONYPI_EVENT_LID_OPENED },
1953         { 0, 0 }
1954 };
1955
1956 /* The set of possible zoom events */
1957 static struct sonypi_event sonypi_zoomev[] = {
1958         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1959         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1960         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1961         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1962         { 0, 0 }
1963 };
1964
1965 /* The set of possible thumbphrase events */
1966 static struct sonypi_event sonypi_thumbphraseev[] = {
1967         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1968         { 0, 0 }
1969 };
1970
1971 /* The set of possible motioneye camera events */
1972 static struct sonypi_event sonypi_meyeev[] = {
1973         { 0x00, SONYPI_EVENT_MEYE_FACE },
1974         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1975         { 0, 0 }
1976 };
1977
1978 /* The set of possible memorystick events */
1979 static struct sonypi_event sonypi_memorystickev[] = {
1980         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1981         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1982         { 0, 0 }
1983 };
1984
1985 /* The set of possible battery events */
1986 static struct sonypi_event sonypi_batteryev[] = {
1987         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1988         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1989         { 0, 0 }
1990 };
1991
1992 /* The set of possible volume events */
1993 static struct sonypi_event sonypi_volumeev[] = {
1994         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1995         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1996         { 0, 0 }
1997 };
1998
1999 /* The set of possible brightness events */
2000 static struct sonypi_event sonypi_brightnessev[] = {
2001         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
2002         { 0, 0 }
2003 };
2004
2005 static struct sonypi_eventtypes type1_events[] = {
2006         { 0, 0xffffffff, sonypi_releaseev },
2007         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
2008         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
2009         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
2010         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
2011         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2012         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2013         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
2014         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2015         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
2016         { 0 },
2017 };
2018 static struct sonypi_eventtypes type2_events[] = {
2019         { 0, 0xffffffff, sonypi_releaseev },
2020         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
2021         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
2022         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
2023         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2024         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2025         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
2026         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
2027         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
2028         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
2029         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
2030         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2031         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2032         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2033         { 0 },
2034 };
2035 static struct sonypi_eventtypes type3_events[] = {
2036         { 0, 0xffffffff, sonypi_releaseev },
2037         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2038         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
2039         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2040         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2041         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2042         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2043         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2044         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2045         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2046         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2047         { 0 },
2048 };
2049
2050 /* low level spic calls */
2051 #define ITERATIONS_LONG         10000
2052 #define ITERATIONS_SHORT        10
2053 #define wait_on_command(command, iterations) {                          \
2054         unsigned int n = iterations;                                    \
2055         while (--n && (command))                                        \
2056                 udelay(1);                                              \
2057         if (!n)                                                         \
2058                 dprintk("command failed at %s : %s (line %d)\n",        \
2059                                 __FILE__, __func__, __LINE__);  \
2060 }
2061
2062 static u8 sony_pic_call1(u8 dev)
2063 {
2064         u8 v1, v2;
2065
2066         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2067                         ITERATIONS_LONG);
2068         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2069         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2070         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2071         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2072         return v2;
2073 }
2074
2075 static u8 sony_pic_call2(u8 dev, u8 fn)
2076 {
2077         u8 v1;
2078
2079         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2080                         ITERATIONS_LONG);
2081         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2082         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2083                         ITERATIONS_LONG);
2084         outb(fn, spic_dev.cur_ioport->io1.minimum);
2085         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2086         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2087         return v1;
2088 }
2089
2090 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2091 {
2092         u8 v1;
2093
2094         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2095         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2096         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2097         outb(fn, spic_dev.cur_ioport->io1.minimum);
2098         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2099         outb(v, spic_dev.cur_ioport->io1.minimum);
2100         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2101         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2102                         dev, fn, v, v1);
2103         return v1;
2104 }
2105
2106 /*
2107  * minidrivers for SPIC models
2108  */
2109 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2110 {
2111         /*
2112          * 0x31 could mean we have to take some extra action and wait for
2113          * the next irq for some Type3 models, it will generate a new
2114          * irq and we can read new data from the device:
2115          *  - 0x5c and 0x5f requires 0xA0
2116          *  - 0x61 requires 0xB3
2117          */
2118         if (data_mask == 0x31) {
2119                 if (ev == 0x5c || ev == 0x5f)
2120                         sony_pic_call1(0xA0);
2121                 else if (ev == 0x61)
2122                         sony_pic_call1(0xB3);
2123                 return 0;
2124         }
2125         return 1;
2126 }
2127
2128 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2129 {
2130         struct pci_dev *pcidev;
2131
2132         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2133                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2134         if (pcidev) {
2135                 dev->model = SONYPI_DEVICE_TYPE1;
2136                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2137                 dev->event_types = type1_events;
2138                 goto out;
2139         }
2140
2141         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2142                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2143         if (pcidev) {
2144                 dev->model = SONYPI_DEVICE_TYPE2;
2145                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2146                 dev->event_types = type2_events;
2147                 goto out;
2148         }
2149
2150         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2151                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2152         if (pcidev) {
2153                 dev->model = SONYPI_DEVICE_TYPE3;
2154                 dev->handle_irq = type3_handle_irq;
2155                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2156                 dev->event_types = type3_events;
2157                 goto out;
2158         }
2159
2160         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2161                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2162         if (pcidev) {
2163                 dev->model = SONYPI_DEVICE_TYPE3;
2164                 dev->handle_irq = type3_handle_irq;
2165                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2166                 dev->event_types = type3_events;
2167                 goto out;
2168         }
2169
2170         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2171                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2172         if (pcidev) {
2173                 dev->model = SONYPI_DEVICE_TYPE3;
2174                 dev->handle_irq = type3_handle_irq;
2175                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2176                 dev->event_types = type3_events;
2177                 goto out;
2178         }
2179
2180         /* default */
2181         dev->model = SONYPI_DEVICE_TYPE2;
2182         dev->evport_offset = SONYPI_TYPE2_OFFSET;
2183         dev->event_types = type2_events;
2184
2185 out:
2186         if (pcidev)
2187                 pci_dev_put(pcidev);
2188
2189         pr_info(DRV_PFX "detected Type%d model\n",
2190                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2191                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2192 }
2193
2194 /* camera tests and poweron/poweroff */
2195 #define SONYPI_CAMERA_PICTURE           5
2196 #define SONYPI_CAMERA_CONTROL           0x10
2197
2198 #define SONYPI_CAMERA_BRIGHTNESS                0
2199 #define SONYPI_CAMERA_CONTRAST                  1
2200 #define SONYPI_CAMERA_HUE                       2
2201 #define SONYPI_CAMERA_COLOR                     3
2202 #define SONYPI_CAMERA_SHARPNESS                 4
2203
2204 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
2205 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
2206 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
2207 #define SONYPI_CAMERA_MUTE_MASK                 0x40
2208
2209 /* the rest don't need a loop until not 0xff */
2210 #define SONYPI_CAMERA_AGC                       6
2211 #define SONYPI_CAMERA_AGC_MASK                  0x30
2212 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
2213
2214 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
2215 #define SONYPI_CAMERA_CONTROL                   0x10
2216
2217 #define SONYPI_CAMERA_STATUS                    7
2218 #define SONYPI_CAMERA_STATUS_READY              0x2
2219 #define SONYPI_CAMERA_STATUS_POSITION           0x4
2220
2221 #define SONYPI_DIRECTION_BACKWARDS              0x4
2222
2223 #define SONYPI_CAMERA_REVISION                  8
2224 #define SONYPI_CAMERA_ROMVERSION                9
2225
2226 static int __sony_pic_camera_ready(void)
2227 {
2228         u8 v;
2229
2230         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2231         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2232 }
2233
2234 static int __sony_pic_camera_off(void)
2235 {
2236         if (!camera) {
2237                 pr_warn(DRV_PFX "camera control not enabled\n");
2238                 return -ENODEV;
2239         }
2240
2241         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2242                                 SONYPI_CAMERA_MUTE_MASK),
2243                         ITERATIONS_SHORT);
2244
2245         if (spic_dev.camera_power) {
2246                 sony_pic_call2(0x91, 0);
2247                 spic_dev.camera_power = 0;
2248         }
2249         return 0;
2250 }
2251
2252 static int __sony_pic_camera_on(void)
2253 {
2254         int i, j, x;
2255
2256         if (!camera) {
2257                 pr_warn(DRV_PFX "camera control not enabled\n");
2258                 return -ENODEV;
2259         }
2260
2261         if (spic_dev.camera_power)
2262                 return 0;
2263
2264         for (j = 5; j > 0; j--) {
2265
2266                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2267                         msleep(10);
2268                 sony_pic_call1(0x93);
2269
2270                 for (i = 400; i > 0; i--) {
2271                         if (__sony_pic_camera_ready())
2272                                 break;
2273                         msleep(10);
2274                 }
2275                 if (i)
2276                         break;
2277         }
2278
2279         if (j == 0) {
2280                 pr_warn(DRV_PFX "failed to power on camera\n");
2281                 return -ENODEV;
2282         }
2283
2284         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2285                                 0x5a),
2286                         ITERATIONS_SHORT);
2287
2288         spic_dev.camera_power = 1;
2289         return 0;
2290 }
2291
2292 /* External camera command (exported to the motion eye v4l driver) */
2293 int sony_pic_camera_command(int command, u8 value)
2294 {
2295         if (!camera)
2296                 return -EIO;
2297
2298         mutex_lock(&spic_dev.lock);
2299
2300         switch (command) {
2301         case SONY_PIC_COMMAND_SETCAMERA:
2302                 if (value)
2303                         __sony_pic_camera_on();
2304                 else
2305                         __sony_pic_camera_off();
2306                 break;
2307         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2308                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2309                                 ITERATIONS_SHORT);
2310                 break;
2311         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2312                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2313                                 ITERATIONS_SHORT);
2314                 break;
2315         case SONY_PIC_COMMAND_SETCAMERAHUE:
2316                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2317                                 ITERATIONS_SHORT);
2318                 break;
2319         case SONY_PIC_COMMAND_SETCAMERACOLOR:
2320                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2321                                 ITERATIONS_SHORT);
2322                 break;
2323         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2324                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2325                                 ITERATIONS_SHORT);
2326                 break;
2327         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2328                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2329                                 ITERATIONS_SHORT);
2330                 break;
2331         case SONY_PIC_COMMAND_SETCAMERAAGC:
2332                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2333                                 ITERATIONS_SHORT);
2334                 break;
2335         default:
2336                 pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n",
2337                        command);
2338                 break;
2339         }
2340         mutex_unlock(&spic_dev.lock);
2341         return 0;
2342 }
2343 EXPORT_SYMBOL(sony_pic_camera_command);
2344
2345 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2346 static void __sony_pic_set_wwanpower(u8 state)
2347 {
2348         state = !!state;
2349         if (spic_dev.wwan_power == state)
2350                 return;
2351         sony_pic_call2(0xB0, state);
2352         sony_pic_call1(0x82);
2353         spic_dev.wwan_power = state;
2354 }
2355
2356 static ssize_t sony_pic_wwanpower_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_wwanpower(value);
2367         mutex_unlock(&spic_dev.lock);
2368
2369         return count;
2370 }
2371
2372 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2373                 struct device_attribute *attr, char *buffer)
2374 {
2375         ssize_t count;
2376         mutex_lock(&spic_dev.lock);
2377         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2378         mutex_unlock(&spic_dev.lock);
2379         return count;
2380 }
2381
2382 /* bluetooth subsystem power state */
2383 static void __sony_pic_set_bluetoothpower(u8 state)
2384 {
2385         state = !!state;
2386         if (spic_dev.bluetooth_power == state)
2387                 return;
2388         sony_pic_call2(0x96, state);
2389         sony_pic_call1(0x82);
2390         spic_dev.bluetooth_power = state;
2391 }
2392
2393 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2394                 struct device_attribute *attr,
2395                 const char *buffer, size_t count)
2396 {
2397         unsigned long value;
2398         if (count > 31)
2399                 return -EINVAL;
2400
2401         value = simple_strtoul(buffer, NULL, 10);
2402         mutex_lock(&spic_dev.lock);
2403         __sony_pic_set_bluetoothpower(value);
2404         mutex_unlock(&spic_dev.lock);
2405
2406         return count;
2407 }
2408
2409 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2410                 struct device_attribute *attr, char *buffer)
2411 {
2412         ssize_t count = 0;
2413         mutex_lock(&spic_dev.lock);
2414         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2415         mutex_unlock(&spic_dev.lock);
2416         return count;
2417 }
2418
2419 /* fan speed */
2420 /* FAN0 information (reverse engineered from ACPI tables) */
2421 #define SONY_PIC_FAN0_STATUS    0x93
2422 static int sony_pic_set_fanspeed(unsigned long value)
2423 {
2424         return ec_write(SONY_PIC_FAN0_STATUS, value);
2425 }
2426
2427 static int sony_pic_get_fanspeed(u8 *value)
2428 {
2429         return ec_read(SONY_PIC_FAN0_STATUS, value);
2430 }
2431
2432 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2433                 struct device_attribute *attr,
2434                 const char *buffer, size_t count)
2435 {
2436         unsigned long value;
2437         if (count > 31)
2438                 return -EINVAL;
2439
2440         value = simple_strtoul(buffer, NULL, 10);
2441         if (sony_pic_set_fanspeed(value))
2442                 return -EIO;
2443
2444         return count;
2445 }
2446
2447 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2448                 struct device_attribute *attr, char *buffer)
2449 {
2450         u8 value = 0;
2451         if (sony_pic_get_fanspeed(&value))
2452                 return -EIO;
2453
2454         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2455 }
2456
2457 #define SPIC_ATTR(_name, _mode)                                 \
2458 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2459                 _mode, sony_pic_## _name ##_show,               \
2460                 sony_pic_## _name ##_store)
2461
2462 static SPIC_ATTR(bluetoothpower, 0644);
2463 static SPIC_ATTR(wwanpower, 0644);
2464 static SPIC_ATTR(fanspeed, 0644);
2465
2466 static struct attribute *spic_attributes[] = {
2467         &spic_attr_bluetoothpower.attr,
2468         &spic_attr_wwanpower.attr,
2469         &spic_attr_fanspeed.attr,
2470         NULL
2471 };
2472
2473 static struct attribute_group spic_attribute_group = {
2474         .attrs = spic_attributes
2475 };
2476
2477 /******** SONYPI compatibility **********/
2478 #ifdef CONFIG_SONYPI_COMPAT
2479
2480 /* battery / brightness / temperature  addresses */
2481 #define SONYPI_BAT_FLAGS        0x81
2482 #define SONYPI_LCD_LIGHT        0x96
2483 #define SONYPI_BAT1_PCTRM       0xa0
2484 #define SONYPI_BAT1_LEFT        0xa2
2485 #define SONYPI_BAT1_MAXRT       0xa4
2486 #define SONYPI_BAT2_PCTRM       0xa8
2487 #define SONYPI_BAT2_LEFT        0xaa
2488 #define SONYPI_BAT2_MAXRT       0xac
2489 #define SONYPI_BAT1_MAXTK       0xb0
2490 #define SONYPI_BAT1_FULL        0xb2
2491 #define SONYPI_BAT2_MAXTK       0xb8
2492 #define SONYPI_BAT2_FULL        0xba
2493 #define SONYPI_TEMP_STATUS      0xC1
2494
2495 struct sonypi_compat_s {
2496         struct fasync_struct    *fifo_async;
2497         struct kfifo            fifo;
2498         spinlock_t              fifo_lock;
2499         wait_queue_head_t       fifo_proc_list;
2500         atomic_t                open_count;
2501 };
2502 static struct sonypi_compat_s sonypi_compat = {
2503         .open_count = ATOMIC_INIT(0),
2504 };
2505
2506 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2507 {
2508         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2509 }
2510
2511 static int sonypi_misc_release(struct inode *inode, struct file *file)
2512 {
2513         atomic_dec(&sonypi_compat.open_count);
2514         return 0;
2515 }
2516
2517 static int sonypi_misc_open(struct inode *inode, struct file *file)
2518 {
2519         /* Flush input queue on first open */
2520         unsigned long flags;
2521
2522         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2523
2524         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2525                 kfifo_reset(&sonypi_compat.fifo);
2526
2527         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2528
2529         return 0;
2530 }
2531
2532 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2533                                 size_t count, loff_t *pos)
2534 {
2535         ssize_t ret;
2536         unsigned char c;
2537
2538         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2539             (file->f_flags & O_NONBLOCK))
2540                 return -EAGAIN;
2541
2542         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2543                                        kfifo_len(&sonypi_compat.fifo) != 0);
2544         if (ret)
2545                 return ret;
2546
2547         while (ret < count &&
2548                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2549                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2550                 if (put_user(c, buf++))
2551                         return -EFAULT;
2552                 ret++;
2553         }
2554
2555         if (ret > 0) {
2556                 struct inode *inode = file->f_path.dentry->d_inode;
2557                 inode->i_atime = current_fs_time(inode->i_sb);
2558         }
2559
2560         return ret;
2561 }
2562
2563 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2564 {
2565         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2566         if (kfifo_len(&sonypi_compat.fifo))
2567                 return POLLIN | POLLRDNORM;
2568         return 0;
2569 }
2570
2571 static int ec_read16(u8 addr, u16 *value)
2572 {
2573         u8 val_lb, val_hb;
2574         if (ec_read(addr, &val_lb))
2575                 return -1;
2576         if (ec_read(addr + 1, &val_hb))
2577                 return -1;
2578         *value = val_lb | (val_hb << 8);
2579         return 0;
2580 }
2581
2582 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2583                                                         unsigned long arg)
2584 {
2585         int ret = 0;
2586         void __user *argp = (void __user *)arg;
2587         u8 val8;
2588         u16 val16;
2589         int value;
2590
2591         mutex_lock(&spic_dev.lock);
2592         switch (cmd) {
2593         case SONYPI_IOCGBRT:
2594                 if (sony_backlight_device == NULL) {
2595                         ret = -EIO;
2596                         break;
2597                 }
2598                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2599                         ret = -EIO;
2600                         break;
2601                 }
2602                 val8 = ((value & 0xff) - 1) << 5;
2603                 if (copy_to_user(argp, &val8, sizeof(val8)))
2604                                 ret = -EFAULT;
2605                 break;
2606         case SONYPI_IOCSBRT:
2607                 if (sony_backlight_device == NULL) {
2608                         ret = -EIO;
2609                         break;
2610                 }
2611                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2612                         ret = -EFAULT;
2613                         break;
2614                 }
2615                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2616                                 (val8 >> 5) + 1, NULL)) {
2617                         ret = -EIO;
2618                         break;
2619                 }
2620                 /* sync the backlight device status */
2621                 sony_backlight_device->props.brightness =
2622                     sony_backlight_get_brightness(sony_backlight_device);
2623                 break;
2624         case SONYPI_IOCGBAT1CAP:
2625                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2626                         ret = -EIO;
2627                         break;
2628                 }
2629                 if (copy_to_user(argp, &val16, sizeof(val16)))
2630                         ret = -EFAULT;
2631                 break;
2632         case SONYPI_IOCGBAT1REM:
2633                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2634                         ret = -EIO;
2635                         break;
2636                 }
2637                 if (copy_to_user(argp, &val16, sizeof(val16)))
2638                         ret = -EFAULT;
2639                 break;
2640         case SONYPI_IOCGBAT2CAP:
2641                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2642                         ret = -EIO;
2643                         break;
2644                 }
2645                 if (copy_to_user(argp, &val16, sizeof(val16)))
2646                         ret = -EFAULT;
2647                 break;
2648         case SONYPI_IOCGBAT2REM:
2649                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2650                         ret = -EIO;
2651                         break;
2652                 }
2653                 if (copy_to_user(argp, &val16, sizeof(val16)))
2654                         ret = -EFAULT;
2655                 break;
2656         case SONYPI_IOCGBATFLAGS:
2657                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2658                         ret = -EIO;
2659                         break;
2660                 }
2661                 val8 &= 0x07;
2662                 if (copy_to_user(argp, &val8, sizeof(val8)))
2663                         ret = -EFAULT;
2664                 break;
2665         case SONYPI_IOCGBLUE:
2666                 val8 = spic_dev.bluetooth_power;
2667                 if (copy_to_user(argp, &val8, sizeof(val8)))
2668                         ret = -EFAULT;
2669                 break;
2670         case SONYPI_IOCSBLUE:
2671                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2672                         ret = -EFAULT;
2673                         break;
2674                 }
2675                 __sony_pic_set_bluetoothpower(val8);
2676                 break;
2677         /* FAN Controls */
2678         case SONYPI_IOCGFAN:
2679                 if (sony_pic_get_fanspeed(&val8)) {
2680                         ret = -EIO;
2681                         break;
2682                 }
2683                 if (copy_to_user(argp, &val8, sizeof(val8)))
2684                         ret = -EFAULT;
2685                 break;
2686         case SONYPI_IOCSFAN:
2687                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2688                         ret = -EFAULT;
2689                         break;
2690                 }
2691                 if (sony_pic_set_fanspeed(val8))
2692                         ret = -EIO;
2693                 break;
2694         /* GET Temperature (useful under APM) */
2695         case SONYPI_IOCGTEMP:
2696                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2697                         ret = -EIO;
2698                         break;
2699                 }
2700                 if (copy_to_user(argp, &val8, sizeof(val8)))
2701                         ret = -EFAULT;
2702                 break;
2703         default:
2704                 ret = -EINVAL;
2705         }
2706         mutex_unlock(&spic_dev.lock);
2707         return ret;
2708 }
2709
2710 static const struct file_operations sonypi_misc_fops = {
2711         .owner          = THIS_MODULE,
2712         .read           = sonypi_misc_read,
2713         .poll           = sonypi_misc_poll,
2714         .open           = sonypi_misc_open,
2715         .release        = sonypi_misc_release,
2716         .fasync         = sonypi_misc_fasync,
2717         .unlocked_ioctl = sonypi_misc_ioctl,
2718         .llseek         = noop_llseek,
2719 };
2720
2721 static struct miscdevice sonypi_misc_device = {
2722         .minor          = MISC_DYNAMIC_MINOR,
2723         .name           = "sonypi",
2724         .fops           = &sonypi_misc_fops,
2725 };
2726
2727 static void sonypi_compat_report_event(u8 event)
2728 {
2729         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2730                         sizeof(event), &sonypi_compat.fifo_lock);
2731         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2732         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2733 }
2734
2735 static int sonypi_compat_init(void)
2736 {
2737         int error;
2738
2739         spin_lock_init(&sonypi_compat.fifo_lock);
2740         error =
2741          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2742         if (error) {
2743                 pr_err(DRV_PFX "kfifo_alloc failed\n");
2744                 return error;
2745         }
2746
2747         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2748
2749         if (minor != -1)
2750                 sonypi_misc_device.minor = minor;
2751         error = misc_register(&sonypi_misc_device);
2752         if (error) {
2753                 pr_err(DRV_PFX "misc_register failed\n");
2754                 goto err_free_kfifo;
2755         }
2756         if (minor == -1)
2757                 pr_info(DRV_PFX "device allocated minor is %d\n",
2758                        sonypi_misc_device.minor);
2759
2760         return 0;
2761
2762 err_free_kfifo:
2763         kfifo_free(&sonypi_compat.fifo);
2764         return error;
2765 }
2766
2767 static void sonypi_compat_exit(void)
2768 {
2769         misc_deregister(&sonypi_misc_device);
2770         kfifo_free(&sonypi_compat.fifo);
2771 }
2772 #else
2773 static int sonypi_compat_init(void) { return 0; }
2774 static void sonypi_compat_exit(void) { }
2775 static void sonypi_compat_report_event(u8 event) { }
2776 #endif /* CONFIG_SONYPI_COMPAT */
2777
2778 /*
2779  * ACPI callbacks
2780  */
2781 static acpi_status
2782 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2783 {
2784         u32 i;
2785         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2786
2787         switch (resource->type) {
2788         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2789                 {
2790                         /* start IO enumeration */
2791                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2792                         if (!ioport)
2793                                 return AE_ERROR;
2794
2795                         list_add(&ioport->list, &dev->ioports);
2796                         return AE_OK;
2797                 }
2798
2799         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2800                 /* end IO enumeration */
2801                 return AE_OK;
2802
2803         case ACPI_RESOURCE_TYPE_IRQ:
2804                 {
2805                         struct acpi_resource_irq *p = &resource->data.irq;
2806                         struct sony_pic_irq *interrupt = NULL;
2807                         if (!p || !p->interrupt_count) {
2808                                 /*
2809                                  * IRQ descriptors may have no IRQ# bits set,
2810                                  * particularly those those w/ _STA disabled
2811                                  */
2812                                 dprintk("Blank IRQ resource\n");
2813                                 return AE_OK;
2814                         }
2815                         for (i = 0; i < p->interrupt_count; i++) {
2816                                 if (!p->interrupts[i]) {
2817                                         pr_warn(DRV_PFX "Invalid IRQ %d\n",
2818                                                         p->interrupts[i]);
2819                                         continue;
2820                                 }
2821                                 interrupt = kzalloc(sizeof(*interrupt),
2822                                                 GFP_KERNEL);
2823                                 if (!interrupt)
2824                                         return AE_ERROR;
2825
2826                                 list_add(&interrupt->list, &dev->interrupts);
2827                                 interrupt->irq.triggering = p->triggering;
2828                                 interrupt->irq.polarity = p->polarity;
2829                                 interrupt->irq.sharable = p->sharable;
2830                                 interrupt->irq.interrupt_count = 1;
2831                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2832                         }
2833                         return AE_OK;
2834                 }
2835         case ACPI_RESOURCE_TYPE_IO:
2836                 {
2837                         struct acpi_resource_io *io = &resource->data.io;
2838                         struct sony_pic_ioport *ioport =
2839                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2840                         if (!io) {
2841                                 dprintk("Blank IO resource\n");
2842                                 return AE_OK;
2843                         }
2844
2845                         if (!ioport->io1.minimum) {
2846                                 memcpy(&ioport->io1, io, sizeof(*io));
2847                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2848                                                 ioport->io1.address_length);
2849                         }
2850                         else if (!ioport->io2.minimum) {
2851                                 memcpy(&ioport->io2, io, sizeof(*io));
2852                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2853                                                 ioport->io2.address_length);
2854                         }
2855                         else {
2856                                 pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2857                                 return AE_ERROR;
2858                         }
2859                         return AE_OK;
2860                 }
2861         default:
2862                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2863                                 resource->type);
2864
2865         case ACPI_RESOURCE_TYPE_END_TAG:
2866                 return AE_OK;
2867         }
2868         return AE_CTRL_TERMINATE;
2869 }
2870
2871 static int sony_pic_possible_resources(struct acpi_device *device)
2872 {
2873         int result = 0;
2874         acpi_status status = AE_OK;
2875
2876         if (!device)
2877                 return -EINVAL;
2878
2879         /* get device status */
2880         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2881         dprintk("Evaluating _STA\n");
2882         result = acpi_bus_get_status(device);
2883         if (result) {
2884                 pr_warn(DRV_PFX "Unable to read status\n");
2885                 goto end;
2886         }
2887
2888         if (!device->status.enabled)
2889                 dprintk("Device disabled\n");
2890         else
2891                 dprintk("Device enabled\n");
2892
2893         /*
2894          * Query and parse 'method'
2895          */
2896         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2897         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2898                         sony_pic_read_possible_resource, &spic_dev);
2899         if (ACPI_FAILURE(status)) {
2900                 pr_warn(DRV_PFX "Failure evaluating %s\n",
2901                                 METHOD_NAME__PRS);
2902                 result = -ENODEV;
2903         }
2904 end:
2905         return result;
2906 }
2907
2908 /*
2909  *  Disable the spic device by calling its _DIS method
2910  */
2911 static int sony_pic_disable(struct acpi_device *device)
2912 {
2913         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2914                                                NULL);
2915
2916         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2917                 return -ENXIO;
2918
2919         dprintk("Device disabled\n");
2920         return 0;
2921 }
2922
2923
2924 /*
2925  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2926  *
2927  *  Call _SRS to set current resources
2928  */
2929 static int sony_pic_enable(struct acpi_device *device,
2930                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2931 {
2932         acpi_status status;
2933         int result = 0;
2934         /* Type 1 resource layout is:
2935          *    IO
2936          *    IO
2937          *    IRQNoFlags
2938          *    End
2939          *
2940          * Type 2 and 3 resource layout is:
2941          *    IO
2942          *    IRQNoFlags
2943          *    End
2944          */
2945         struct {
2946                 struct acpi_resource res1;
2947                 struct acpi_resource res2;
2948                 struct acpi_resource res3;
2949                 struct acpi_resource res4;
2950         } *resource;
2951         struct acpi_buffer buffer = { 0, NULL };
2952
2953         if (!ioport || !irq)
2954                 return -EINVAL;
2955
2956         /* init acpi_buffer */
2957         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2958         if (!resource)
2959                 return -ENOMEM;
2960
2961         buffer.length = sizeof(*resource) + 1;
2962         buffer.pointer = resource;
2963
2964         /* setup Type 1 resources */
2965         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2966
2967                 /* setup io resources */
2968                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2969                 resource->res1.length = sizeof(struct acpi_resource);
2970                 memcpy(&resource->res1.data.io, &ioport->io1,
2971                                 sizeof(struct acpi_resource_io));
2972
2973                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2974                 resource->res2.length = sizeof(struct acpi_resource);
2975                 memcpy(&resource->res2.data.io, &ioport->io2,
2976                                 sizeof(struct acpi_resource_io));
2977
2978                 /* setup irq resource */
2979                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2980                 resource->res3.length = sizeof(struct acpi_resource);
2981                 memcpy(&resource->res3.data.irq, &irq->irq,
2982                                 sizeof(struct acpi_resource_irq));
2983                 /* we requested a shared irq */
2984                 resource->res3.data.irq.sharable = ACPI_SHARED;
2985
2986                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2987
2988         }
2989         /* setup Type 2/3 resources */
2990         else {
2991                 /* setup io resource */
2992                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2993                 resource->res1.length = sizeof(struct acpi_resource);
2994                 memcpy(&resource->res1.data.io, &ioport->io1,
2995                                 sizeof(struct acpi_resource_io));
2996
2997                 /* setup irq resource */
2998                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2999                 resource->res2.length = sizeof(struct acpi_resource);
3000                 memcpy(&resource->res2.data.irq, &irq->irq,
3001                                 sizeof(struct acpi_resource_irq));
3002                 /* we requested a shared irq */
3003                 resource->res2.data.irq.sharable = ACPI_SHARED;
3004
3005                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
3006         }
3007
3008         /* Attempt to set the resource */
3009         dprintk("Evaluating _SRS\n");
3010         status = acpi_set_current_resources(device->handle, &buffer);
3011
3012         /* check for total failure */
3013         if (ACPI_FAILURE(status)) {
3014                 pr_err(DRV_PFX "Error evaluating _SRS\n");
3015                 result = -ENODEV;
3016                 goto end;
3017         }
3018
3019         /* Necessary device initializations calls (from sonypi) */
3020         sony_pic_call1(0x82);
3021         sony_pic_call2(0x81, 0xff);
3022         sony_pic_call1(compat ? 0x92 : 0x82);
3023
3024 end:
3025         kfree(resource);
3026         return result;
3027 }
3028
3029 /*****************
3030  *
3031  * ISR: some event is available
3032  *
3033  *****************/
3034 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
3035 {
3036         int i, j;
3037         u8 ev = 0;
3038         u8 data_mask = 0;
3039         u8 device_event = 0;
3040
3041         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
3042
3043         ev = inb_p(dev->cur_ioport->io1.minimum);
3044         if (dev->cur_ioport->io2.minimum)
3045                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3046         else
3047                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3048                                 dev->evport_offset);
3049
3050         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3051                         ev, data_mask, dev->cur_ioport->io1.minimum,
3052                         dev->evport_offset);
3053
3054         if (ev == 0x00 || ev == 0xff)
3055                 return IRQ_HANDLED;
3056
3057         for (i = 0; dev->event_types[i].mask; i++) {
3058
3059                 if ((data_mask & dev->event_types[i].data) !=
3060                     dev->event_types[i].data)
3061                         continue;
3062
3063                 if (!(mask & dev->event_types[i].mask))
3064                         continue;
3065
3066                 for (j = 0; dev->event_types[i].events[j].event; j++) {
3067                         if (ev == dev->event_types[i].events[j].data) {
3068                                 device_event =
3069                                         dev->event_types[i].events[j].event;
3070                                 /* some events may require ignoring */
3071                                 if (!device_event)
3072                                         return IRQ_HANDLED;
3073                                 goto found;
3074                         }
3075                 }
3076         }
3077         /* Still not able to decode the event try to pass
3078          * it over to the minidriver
3079          */
3080         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3081                 return IRQ_HANDLED;
3082
3083         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3084                         ev, data_mask, dev->cur_ioport->io1.minimum,
3085                         dev->evport_offset);
3086         return IRQ_HANDLED;
3087
3088 found:
3089         sony_laptop_report_input_event(device_event);
3090         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3091         sonypi_compat_report_event(device_event);
3092         return IRQ_HANDLED;
3093 }
3094
3095 /*****************
3096  *
3097  *  ACPI driver
3098  *
3099  *****************/
3100 static int sony_pic_remove(struct acpi_device *device, int type)
3101 {
3102         struct sony_pic_ioport *io, *tmp_io;
3103         struct sony_pic_irq *irq, *tmp_irq;
3104
3105         if (sony_pic_disable(device)) {
3106                 pr_err(DRV_PFX "Couldn't disable device.\n");
3107                 return -ENXIO;
3108         }
3109
3110         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3111         release_region(spic_dev.cur_ioport->io1.minimum,
3112                         spic_dev.cur_ioport->io1.address_length);
3113         if (spic_dev.cur_ioport->io2.minimum)
3114                 release_region(spic_dev.cur_ioport->io2.minimum,
3115                                 spic_dev.cur_ioport->io2.address_length);
3116
3117         sonypi_compat_exit();
3118
3119         sony_laptop_remove_input();
3120
3121         /* pf attrs */
3122         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3123         sony_pf_remove();
3124
3125         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3126                 list_del(&io->list);
3127                 kfree(io);
3128         }
3129         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3130                 list_del(&irq->list);
3131                 kfree(irq);
3132         }
3133         spic_dev.cur_ioport = NULL;
3134         spic_dev.cur_irq = NULL;
3135
3136         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3137         return 0;
3138 }
3139
3140 static int sony_pic_add(struct acpi_device *device)
3141 {
3142         int result;
3143         struct sony_pic_ioport *io, *tmp_io;
3144         struct sony_pic_irq *irq, *tmp_irq;
3145
3146         pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME,
3147                         SONY_LAPTOP_DRIVER_VERSION);
3148
3149         spic_dev.acpi_dev = device;
3150         strcpy(acpi_device_class(device), "sony/hotkey");
3151         sony_pic_detect_device_type(&spic_dev);
3152         mutex_init(&spic_dev.lock);
3153
3154         /* read _PRS resources */
3155         result = sony_pic_possible_resources(device);
3156         if (result) {
3157                 pr_err(DRV_PFX "Unable to read possible resources.\n");
3158                 goto err_free_resources;
3159         }
3160
3161         /* setup input devices and helper fifo */
3162         result = sony_laptop_setup_input(device);
3163         if (result) {
3164                 pr_err(DRV_PFX "Unable to create input devices.\n");
3165                 goto err_free_resources;
3166         }
3167
3168         if (sonypi_compat_init())
3169                 goto err_remove_input;
3170
3171         /* request io port */
3172         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3173                 if (request_region(io->io1.minimum, io->io1.address_length,
3174                                         "Sony Programmable I/O Device")) {
3175                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3176                                         io->io1.minimum, io->io1.maximum,
3177                                         io->io1.address_length);
3178                         /* Type 1 have 2 ioports */
3179                         if (io->io2.minimum) {
3180                                 if (request_region(io->io2.minimum,
3181                                                 io->io2.address_length,
3182                                                 "Sony Programmable I/O Device")) {
3183                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3184                                                         io->io2.minimum, io->io2.maximum,
3185                                                         io->io2.address_length);
3186                                         spic_dev.cur_ioport = io;
3187                                         break;
3188                                 }
3189                                 else {
3190                                         dprintk("Unable to get I/O port2: "
3191                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
3192                                                         io->io2.minimum, io->io2.maximum,
3193                                                         io->io2.address_length);
3194                                         release_region(io->io1.minimum,
3195                                                         io->io1.address_length);
3196                                 }
3197                         }
3198                         else {
3199                                 spic_dev.cur_ioport = io;
3200                                 break;
3201                         }
3202                 }
3203         }
3204         if (!spic_dev.cur_ioport) {
3205                 pr_err(DRV_PFX "Failed to request_region.\n");
3206                 result = -ENODEV;
3207                 goto err_remove_compat;
3208         }
3209
3210         /* request IRQ */
3211         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3212                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3213                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
3214                         dprintk("IRQ: %d - triggering: %d - "
3215                                         "polarity: %d - shr: %d\n",
3216                                         irq->irq.interrupts[0],
3217                                         irq->irq.triggering,
3218                                         irq->irq.polarity,
3219                                         irq->irq.sharable);
3220                         spic_dev.cur_irq = irq;
3221                         break;
3222                 }
3223         }
3224         if (!spic_dev.cur_irq) {
3225                 pr_err(DRV_PFX "Failed to request_irq.\n");
3226                 result = -ENODEV;
3227                 goto err_release_region;
3228         }
3229
3230         /* set resource status _SRS */
3231         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3232         if (result) {
3233                 pr_err(DRV_PFX "Couldn't enable device.\n");
3234                 goto err_free_irq;
3235         }
3236
3237         spic_dev.bluetooth_power = -1;
3238         /* create device attributes */
3239         result = sony_pf_add();
3240         if (result)
3241                 goto err_disable_device;
3242
3243         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3244         if (result)
3245                 goto err_remove_pf;
3246
3247         return 0;
3248
3249 err_remove_pf:
3250         sony_pf_remove();
3251
3252 err_disable_device:
3253         sony_pic_disable(device);
3254
3255 err_free_irq:
3256         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3257
3258 err_release_region:
3259         release_region(spic_dev.cur_ioport->io1.minimum,
3260                         spic_dev.cur_ioport->io1.address_length);
3261         if (spic_dev.cur_ioport->io2.minimum)
3262                 release_region(spic_dev.cur_ioport->io2.minimum,
3263                                 spic_dev.cur_ioport->io2.address_length);
3264
3265 err_remove_compat:
3266         sonypi_compat_exit();
3267
3268 err_remove_input:
3269         sony_laptop_remove_input();
3270
3271 err_free_resources:
3272         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3273                 list_del(&io->list);
3274                 kfree(io);
3275         }
3276         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3277                 list_del(&irq->list);
3278                 kfree(irq);
3279         }
3280         spic_dev.cur_ioport = NULL;
3281         spic_dev.cur_irq = NULL;
3282
3283         return result;
3284 }
3285
3286 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3287 {
3288         if (sony_pic_disable(device))
3289                 return -ENXIO;
3290         return 0;
3291 }
3292
3293 static int sony_pic_resume(struct acpi_device *device)
3294 {
3295         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3296         return 0;
3297 }
3298
3299 static const struct acpi_device_id sony_pic_device_ids[] = {
3300         {SONY_PIC_HID, 0},
3301         {"", 0},
3302 };
3303
3304 static struct acpi_driver sony_pic_driver = {
3305         .name = SONY_PIC_DRIVER_NAME,
3306         .class = SONY_PIC_CLASS,
3307         .ids = sony_pic_device_ids,
3308         .owner = THIS_MODULE,
3309         .ops = {
3310                 .add = sony_pic_add,
3311                 .remove = sony_pic_remove,
3312                 .suspend = sony_pic_suspend,
3313                 .resume = sony_pic_resume,
3314                 },
3315 };
3316
3317 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3318         {
3319                 .ident = "Sony Vaio",
3320                 .matches = {
3321                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3322                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3323                 },
3324         },
3325         {
3326                 .ident = "Sony Vaio",
3327                 .matches = {
3328                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3329                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3330                 },
3331         },
3332         { }
3333 };
3334
3335 static int __init sony_laptop_init(void)
3336 {
3337         int result;
3338
3339         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3340                 result = acpi_bus_register_driver(&sony_pic_driver);
3341                 if (result) {
3342                         pr_err(DRV_PFX "Unable to register SPIC driver.");
3343                         goto out;
3344                 }
3345                 spic_drv_registered = 1;
3346         }
3347
3348         result = acpi_bus_register_driver(&sony_nc_driver);
3349         if (result) {
3350                 pr_err(DRV_PFX "Unable to register SNC driver.");
3351                 goto out_unregister_pic;
3352         }
3353
3354         return 0;
3355
3356 out_unregister_pic:
3357         if (spic_drv_registered)
3358                 acpi_bus_unregister_driver(&sony_pic_driver);
3359 out:
3360         return result;
3361 }
3362
3363 static void __exit sony_laptop_exit(void)
3364 {
3365         acpi_bus_unregister_driver(&sony_nc_driver);
3366         if (spic_drv_registered)
3367                 acpi_bus_unregister_driver(&sony_pic_driver);
3368 }
3369
3370 module_init(sony_laptop_init);
3371 module_exit(sony_laptop_exit);