sony-laptop: do not scribble keyboard backlight registers on resume
[linux-drm-fsl-dcu.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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
46
47 #include <linux/kernel.h>
48 #include <linux/module.h>
49 #include <linux/moduleparam.h>
50 #include <linux/init.h>
51 #include <linux/types.h>
52 #include <linux/backlight.h>
53 #include <linux/platform_device.h>
54 #include <linux/err.h>
55 #include <linux/dmi.h>
56 #include <linux/pci.h>
57 #include <linux/interrupt.h>
58 #include <linux/delay.h>
59 #include <linux/input.h>
60 #include <linux/kfifo.h>
61 #include <linux/workqueue.h>
62 #include <linux/acpi.h>
63 #include <linux/slab.h>
64 #include <acpi/acpi_drivers.h>
65 #include <acpi/acpi_bus.h>
66 #include <asm/uaccess.h>
67 #include <linux/sonypi.h>
68 #include <linux/sony-laptop.h>
69 #include <linux/rfkill.h>
70 #ifdef CONFIG_SONYPI_COMPAT
71 #include <linux/poll.h>
72 #include <linux/miscdevice.h>
73 #endif
74
75 #define dprintk(fmt, ...)                       \
76 do {                                            \
77         if (debug)                              \
78                 pr_warn(fmt, ##__VA_ARGS__);    \
79 } while (0)
80
81 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
82
83 #define SONY_NC_CLASS           "sony-nc"
84 #define SONY_NC_HID             "SNY5001"
85 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
86
87 #define SONY_PIC_CLASS          "sony-pic"
88 #define SONY_PIC_HID            "SNY6001"
89 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
90
91 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
92 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
93 MODULE_LICENSE("GPL");
94 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
95
96 static int debug;
97 module_param(debug, int, 0);
98 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
99                  "the development of this driver");
100
101 static int no_spic;             /* = 0 */
102 module_param(no_spic, int, 0444);
103 MODULE_PARM_DESC(no_spic,
104                  "set this if you don't want to enable the SPIC device");
105
106 static int compat;              /* = 0 */
107 module_param(compat, int, 0444);
108 MODULE_PARM_DESC(compat,
109                  "set this if you want to enable backward compatibility mode");
110
111 static unsigned long mask = 0xffffffff;
112 module_param(mask, ulong, 0644);
113 MODULE_PARM_DESC(mask,
114                  "set this to the mask of event you want to enable (see doc)");
115
116 static int camera;              /* = 0 */
117 module_param(camera, int, 0444);
118 MODULE_PARM_DESC(camera,
119                  "set this to 1 to enable Motion Eye camera controls "
120                  "(only use it if you have a C1VE or C1VN model)");
121
122 #ifdef CONFIG_SONYPI_COMPAT
123 static int minor = -1;
124 module_param(minor, int, 0);
125 MODULE_PARM_DESC(minor,
126                  "minor number of the misc device for the SPIC compatibility code, "
127                  "default is -1 (automatic)");
128 #endif
129
130 static int kbd_backlight = -1;
131 module_param(kbd_backlight, int, 0444);
132 MODULE_PARM_DESC(kbd_backlight,
133                  "set this to 0 to disable keyboard backlight, "
134                  "1 to enable it (default: no change from current value)");
135
136 static int kbd_backlight_timeout = -1;
137 module_param(kbd_backlight_timeout, int, 0444);
138 MODULE_PARM_DESC(kbd_backlight_timeout,
139                  "meaningful values vary from 0 to 3 and their meaning depends "
140                  "on the model (default: no change from current value)");
141
142 #ifdef CONFIG_PM_SLEEP
143 static void sony_nc_thermal_resume(void);
144 #endif
145 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
146                 unsigned int handle);
147 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
148                 unsigned int handle);
149
150 static int sony_nc_battery_care_setup(struct platform_device *pd,
151                 unsigned int handle);
152 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
153
154 static int sony_nc_thermal_setup(struct platform_device *pd);
155 static void sony_nc_thermal_cleanup(struct platform_device *pd);
156
157 static int sony_nc_lid_resume_setup(struct platform_device *pd);
158 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
159
160 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
161                 unsigned int handle);
162 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
163 static int __sony_nc_gfx_switch_status_get(void);
164
165 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
166 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
167
168 static int sony_nc_touchpad_setup(struct platform_device *pd,
169                                   unsigned int handle);
170 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
171
172 enum sony_nc_rfkill {
173         SONY_WIFI,
174         SONY_BLUETOOTH,
175         SONY_WWAN,
176         SONY_WIMAX,
177         N_SONY_RFKILL,
178 };
179
180 static int sony_rfkill_handle;
181 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
182 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
183 static int sony_nc_rfkill_setup(struct acpi_device *device,
184                 unsigned int handle);
185 static void sony_nc_rfkill_cleanup(void);
186 static void sony_nc_rfkill_update(void);
187
188 /*********** Input Devices ***********/
189
190 #define SONY_LAPTOP_BUF_SIZE    128
191 struct sony_laptop_input_s {
192         atomic_t                users;
193         struct input_dev        *jog_dev;
194         struct input_dev        *key_dev;
195         struct kfifo            fifo;
196         spinlock_t              fifo_lock;
197         struct timer_list       release_key_timer;
198 };
199
200 static struct sony_laptop_input_s sony_laptop_input = {
201         .users = ATOMIC_INIT(0),
202 };
203
204 struct sony_laptop_keypress {
205         struct input_dev *dev;
206         int key;
207 };
208
209 /* Correspondance table between sonypi events
210  * and input layer indexes in the keymap
211  */
212 static int sony_laptop_input_index[] = {
213         -1,     /*  0 no event */
214         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
215         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
216         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
217         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
218         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
219         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
220          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
221          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
222          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
223          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
224          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
225          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
226          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
227          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
228          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
229          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
230         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
231         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
232         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
233         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
234         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
235         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
236         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
237         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
238         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
239         19,     /* 26 SONYPI_EVENT_FNKEY_D */
240         20,     /* 27 SONYPI_EVENT_FNKEY_E */
241         21,     /* 28 SONYPI_EVENT_FNKEY_F */
242         22,     /* 29 SONYPI_EVENT_FNKEY_S */
243         23,     /* 30 SONYPI_EVENT_FNKEY_B */
244         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
245         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
246         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
247         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
248         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
249         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
250         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
251         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
252         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
253         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
254         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
255         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
256         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
257         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
258         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
259         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
260         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
261         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
262         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
263         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
264         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
265         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
266         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
267         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
268         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
269         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
270         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
271         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
272         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
273         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
274         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
275         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
276         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
277         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
278         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
279         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
280         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
281         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
282         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
283         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
284         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
285         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
286         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
287 };
288
289 static int sony_laptop_input_keycode_map[] = {
290         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
291         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
292         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
293         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
294         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
295         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
296         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
297         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
298         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
299         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
300         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
301         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
302         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
303         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
304         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
305         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
306         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
307         KEY_FN_1,       /* 17 SONYPI_EVENT_FNKEY_1 */
308         KEY_FN_2,       /* 18 SONYPI_EVENT_FNKEY_2 */
309         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
310         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
311         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
312         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
313         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
314         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
315         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
316         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
317         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
318         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
319         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
320         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
321         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
322         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
323         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
324         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
325         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
326         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
327         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
328         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
329         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
330         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
331         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
332         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
333         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
334         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
335         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
336         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
337         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
338         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
339         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
340         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
341         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
342         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
343         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
344         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
345         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
346         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
347         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
348         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
349         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
350 };
351
352 /* release buttons after a short delay if pressed */
353 static void do_sony_laptop_release_key(unsigned long unused)
354 {
355         struct sony_laptop_keypress kp;
356         unsigned long flags;
357
358         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
359
360         if (kfifo_out(&sony_laptop_input.fifo,
361                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
362                 input_report_key(kp.dev, kp.key, 0);
363                 input_sync(kp.dev);
364         }
365
366         /* If there is something in the fifo schedule next release. */
367         if (kfifo_len(&sony_laptop_input.fifo) != 0)
368                 mod_timer(&sony_laptop_input.release_key_timer,
369                           jiffies + msecs_to_jiffies(10));
370
371         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
372 }
373
374 /* forward event to the input subsystem */
375 static void sony_laptop_report_input_event(u8 event)
376 {
377         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
378         struct input_dev *key_dev = sony_laptop_input.key_dev;
379         struct sony_laptop_keypress kp = { NULL };
380         int scancode = -1;
381
382         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
383                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
384                 /* Nothing, not all VAIOs generate this event */
385                 return;
386         }
387
388         /* report events */
389         switch (event) {
390         /* jog_dev events */
391         case SONYPI_EVENT_JOGDIAL_UP:
392         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
393                 input_report_rel(jog_dev, REL_WHEEL, 1);
394                 input_sync(jog_dev);
395                 return;
396
397         case SONYPI_EVENT_JOGDIAL_DOWN:
398         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
399                 input_report_rel(jog_dev, REL_WHEEL, -1);
400                 input_sync(jog_dev);
401                 return;
402
403         /* key_dev events */
404         case SONYPI_EVENT_JOGDIAL_PRESSED:
405                 kp.key = BTN_MIDDLE;
406                 kp.dev = jog_dev;
407                 break;
408
409         default:
410                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
411                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
412                         break;
413                 }
414                 if ((scancode = sony_laptop_input_index[event]) != -1) {
415                         kp.key = sony_laptop_input_keycode_map[scancode];
416                         if (kp.key != KEY_UNKNOWN)
417                                 kp.dev = key_dev;
418                 }
419                 break;
420         }
421
422         if (kp.dev) {
423                 /* if we have a scancode we emit it so we can always
424                     remap the key */
425                 if (scancode != -1)
426                         input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
427                 input_report_key(kp.dev, kp.key, 1);
428                 input_sync(kp.dev);
429
430                 /* schedule key release */
431                 kfifo_in_locked(&sony_laptop_input.fifo,
432                                 (unsigned char *)&kp, sizeof(kp),
433                                 &sony_laptop_input.fifo_lock);
434                 mod_timer(&sony_laptop_input.release_key_timer,
435                           jiffies + msecs_to_jiffies(10));
436         } else
437                 dprintk("unknown input event %.2x\n", event);
438 }
439
440 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
441 {
442         struct input_dev *jog_dev;
443         struct input_dev *key_dev;
444         int i;
445         int error;
446
447         /* don't run again if already initialized */
448         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
449                 return 0;
450
451         /* kfifo */
452         spin_lock_init(&sony_laptop_input.fifo_lock);
453         error = kfifo_alloc(&sony_laptop_input.fifo,
454                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
455         if (error) {
456                 pr_err("kfifo_alloc failed\n");
457                 goto err_dec_users;
458         }
459
460         setup_timer(&sony_laptop_input.release_key_timer,
461                     do_sony_laptop_release_key, 0);
462
463         /* input keys */
464         key_dev = input_allocate_device();
465         if (!key_dev) {
466                 error = -ENOMEM;
467                 goto err_free_kfifo;
468         }
469
470         key_dev->name = "Sony Vaio Keys";
471         key_dev->id.bustype = BUS_ISA;
472         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
473         key_dev->dev.parent = &acpi_device->dev;
474
475         /* Initialize the Input Drivers: special keys */
476         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
477
478         __set_bit(EV_KEY, key_dev->evbit);
479         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
480         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
481         key_dev->keycode = &sony_laptop_input_keycode_map;
482         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
483                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
484         __clear_bit(KEY_RESERVED, key_dev->keybit);
485
486         error = input_register_device(key_dev);
487         if (error)
488                 goto err_free_keydev;
489
490         sony_laptop_input.key_dev = key_dev;
491
492         /* jogdial */
493         jog_dev = input_allocate_device();
494         if (!jog_dev) {
495                 error = -ENOMEM;
496                 goto err_unregister_keydev;
497         }
498
499         jog_dev->name = "Sony Vaio Jogdial";
500         jog_dev->id.bustype = BUS_ISA;
501         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
502         jog_dev->dev.parent = &acpi_device->dev;
503
504         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
505         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
506
507         error = input_register_device(jog_dev);
508         if (error)
509                 goto err_free_jogdev;
510
511         sony_laptop_input.jog_dev = jog_dev;
512
513         return 0;
514
515 err_free_jogdev:
516         input_free_device(jog_dev);
517
518 err_unregister_keydev:
519         input_unregister_device(key_dev);
520         /* to avoid kref underflow below at input_free_device */
521         key_dev = NULL;
522
523 err_free_keydev:
524         input_free_device(key_dev);
525
526 err_free_kfifo:
527         kfifo_free(&sony_laptop_input.fifo);
528
529 err_dec_users:
530         atomic_dec(&sony_laptop_input.users);
531         return error;
532 }
533
534 static void sony_laptop_remove_input(void)
535 {
536         struct sony_laptop_keypress kp = { NULL };
537
538         /* Cleanup only after the last user has gone */
539         if (!atomic_dec_and_test(&sony_laptop_input.users))
540                 return;
541
542         del_timer_sync(&sony_laptop_input.release_key_timer);
543
544         /*
545          * Generate key-up events for remaining keys. Note that we don't
546          * need locking since nobody is adding new events to the kfifo.
547          */
548         while (kfifo_out(&sony_laptop_input.fifo,
549                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
550                 input_report_key(kp.dev, kp.key, 0);
551                 input_sync(kp.dev);
552         }
553
554         /* destroy input devs */
555         input_unregister_device(sony_laptop_input.key_dev);
556         sony_laptop_input.key_dev = NULL;
557
558         if (sony_laptop_input.jog_dev) {
559                 input_unregister_device(sony_laptop_input.jog_dev);
560                 sony_laptop_input.jog_dev = NULL;
561         }
562
563         kfifo_free(&sony_laptop_input.fifo);
564 }
565
566 /*********** Platform Device ***********/
567
568 static atomic_t sony_pf_users = ATOMIC_INIT(0);
569 static struct platform_driver sony_pf_driver = {
570         .driver = {
571                    .name = "sony-laptop",
572                    .owner = THIS_MODULE,
573                    }
574 };
575 static struct platform_device *sony_pf_device;
576
577 static int sony_pf_add(void)
578 {
579         int ret = 0;
580
581         /* don't run again if already initialized */
582         if (atomic_add_return(1, &sony_pf_users) > 1)
583                 return 0;
584
585         ret = platform_driver_register(&sony_pf_driver);
586         if (ret)
587                 goto out;
588
589         sony_pf_device = platform_device_alloc("sony-laptop", -1);
590         if (!sony_pf_device) {
591                 ret = -ENOMEM;
592                 goto out_platform_registered;
593         }
594
595         ret = platform_device_add(sony_pf_device);
596         if (ret)
597                 goto out_platform_alloced;
598
599         return 0;
600
601       out_platform_alloced:
602         platform_device_put(sony_pf_device);
603         sony_pf_device = NULL;
604       out_platform_registered:
605         platform_driver_unregister(&sony_pf_driver);
606       out:
607         atomic_dec(&sony_pf_users);
608         return ret;
609 }
610
611 static void sony_pf_remove(void)
612 {
613         /* deregister only after the last user has gone */
614         if (!atomic_dec_and_test(&sony_pf_users))
615                 return;
616
617         platform_device_unregister(sony_pf_device);
618         platform_driver_unregister(&sony_pf_driver);
619 }
620
621 /*********** SNC (SNY5001) Device ***********/
622
623 /* the device uses 1-based values, while the backlight subsystem uses
624    0-based values */
625 #define SONY_MAX_BRIGHTNESS     8
626
627 #define SNC_VALIDATE_IN         0
628 #define SNC_VALIDATE_OUT        1
629
630 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
631                               char *);
632 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
633                                const char *, size_t);
634 static int boolean_validate(const int, const int);
635 static int brightness_default_validate(const int, const int);
636
637 struct sony_nc_value {
638         char *name;             /* name of the entry */
639         char **acpiget;         /* names of the ACPI get function */
640         char **acpiset;         /* names of the ACPI set function */
641         int (*validate)(const int, const int);  /* input/output validation */
642         int value;              /* current setting */
643         int valid;              /* Has ever been set */
644         int debug;              /* active only in debug mode ? */
645         struct device_attribute devattr;        /* sysfs attribute */
646 };
647
648 #define SNC_HANDLE_NAMES(_name, _values...) \
649         static char *snc_##_name[] = { _values, NULL }
650
651 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
652         { \
653                 .name           = __stringify(_name), \
654                 .acpiget        = _getters, \
655                 .acpiset        = _setters, \
656                 .validate       = _validate, \
657                 .debug          = _debug, \
658                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
659         }
660
661 #define SNC_HANDLE_NULL { .name = NULL }
662
663 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
664
665 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
666 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
667
668 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
669 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
670
671 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
672 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
673
674 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
675 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
676
677 SNC_HANDLE_NAMES(lidstate_get, "GLID");
678
679 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
680 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
681
682 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
683 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
684
685 SNC_HANDLE_NAMES(PID_get, "GPID");
686
687 SNC_HANDLE_NAMES(CTR_get, "GCTR");
688 SNC_HANDLE_NAMES(CTR_set, "SCTR");
689
690 SNC_HANDLE_NAMES(PCR_get, "GPCR");
691 SNC_HANDLE_NAMES(PCR_set, "SPCR");
692
693 SNC_HANDLE_NAMES(CMI_get, "GCMI");
694 SNC_HANDLE_NAMES(CMI_set, "SCMI");
695
696 static struct sony_nc_value sony_nc_values[] = {
697         SNC_HANDLE(brightness_default, snc_brightness_def_get,
698                         snc_brightness_def_set, brightness_default_validate, 0),
699         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
700         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
701         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
702                         boolean_validate, 0),
703         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
704                         boolean_validate, 1),
705         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
706                         boolean_validate, 0),
707         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
708                         boolean_validate, 0),
709         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
710                         boolean_validate, 0),
711         /* unknown methods */
712         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
713         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
714         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
715         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
716         SNC_HANDLE_NULL
717 };
718
719 static acpi_handle sony_nc_acpi_handle;
720 static struct acpi_device *sony_nc_acpi_device = NULL;
721
722 /*
723  * acpi_evaluate_object wrappers
724  * all useful calls into SNC methods take one or zero parameters and return
725  * integers or arrays.
726  */
727 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
728                 u64 *value)
729 {
730         union acpi_object *result = NULL;
731         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
732         acpi_status status;
733
734         if (value) {
735                 struct acpi_object_list params;
736                 union acpi_object in;
737                 in.type = ACPI_TYPE_INTEGER;
738                 in.integer.value = *value;
739                 params.count = 1;
740                 params.pointer = &in;
741                 status = acpi_evaluate_object(handle, method, &params, &output);
742                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
743                                 (unsigned int)(*value >> 32),
744                                 (unsigned int)*value & 0xffffffff);
745         } else {
746                 status = acpi_evaluate_object(handle, method, NULL, &output);
747                 dprintk("__call_snc_method: [%s]\n", method);
748         }
749
750         if (ACPI_FAILURE(status)) {
751                 pr_err("Failed to evaluate [%s]\n", method);
752                 return NULL;
753         }
754
755         result = (union acpi_object *) output.pointer;
756         if (!result)
757                 dprintk("No return object [%s]\n", method);
758
759         return result;
760 }
761
762 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
763                 int *result)
764 {
765         union acpi_object *object = NULL;
766         if (value) {
767                 u64 v = *value;
768                 object = __call_snc_method(handle, name, &v);
769         } else
770                 object = __call_snc_method(handle, name, NULL);
771
772         if (!object)
773                 return -EINVAL;
774
775         if (object->type != ACPI_TYPE_INTEGER) {
776                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
777                                 ACPI_TYPE_INTEGER, object->type);
778                 kfree(object);
779                 return -EINVAL;
780         }
781
782         if (result)
783                 *result = object->integer.value;
784
785         kfree(object);
786         return 0;
787 }
788
789 #define MIN(a, b)       (a > b ? b : a)
790 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
791                 void *buffer, size_t buflen)
792 {
793         int ret = 0;
794         size_t len = len;
795         union acpi_object *object = __call_snc_method(handle, name, value);
796
797         if (!object)
798                 return -EINVAL;
799
800         if (object->type == ACPI_TYPE_BUFFER) {
801                 len = MIN(buflen, object->buffer.length);
802                 memcpy(buffer, object->buffer.pointer, len);
803
804         } else if (object->type == ACPI_TYPE_INTEGER) {
805                 len = MIN(buflen, sizeof(object->integer.value));
806                 memcpy(buffer, &object->integer.value, len);
807
808         } else {
809                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
810                                 ACPI_TYPE_BUFFER, object->type);
811                 ret = -EINVAL;
812         }
813
814         kfree(object);
815         return ret;
816 }
817
818 struct sony_nc_handles {
819         u16 cap[0x10];
820         struct device_attribute devattr;
821 };
822
823 static struct sony_nc_handles *handles;
824
825 static ssize_t sony_nc_handles_show(struct device *dev,
826                 struct device_attribute *attr, char *buffer)
827 {
828         ssize_t len = 0;
829         int i;
830
831         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
832                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
833                                 handles->cap[i]);
834         }
835         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
836
837         return len;
838 }
839
840 static int sony_nc_handles_setup(struct platform_device *pd)
841 {
842         int i, r, result, arg;
843
844         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
845         if (!handles)
846                 return -ENOMEM;
847
848         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
849                 arg = i + 0x20;
850                 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
851                                         &result);
852                 if (!r) {
853                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
854                                         result, i);
855                         handles->cap[i] = result;
856                 }
857         }
858
859         if (debug) {
860                 sysfs_attr_init(&handles->devattr.attr);
861                 handles->devattr.attr.name = "handles";
862                 handles->devattr.attr.mode = S_IRUGO;
863                 handles->devattr.show = sony_nc_handles_show;
864
865                 /* allow reading capabilities via sysfs */
866                 if (device_create_file(&pd->dev, &handles->devattr)) {
867                         kfree(handles);
868                         handles = NULL;
869                         return -1;
870                 }
871         }
872
873         return 0;
874 }
875
876 static int sony_nc_handles_cleanup(struct platform_device *pd)
877 {
878         if (handles) {
879                 if (debug)
880                         device_remove_file(&pd->dev, &handles->devattr);
881                 kfree(handles);
882                 handles = NULL;
883         }
884         return 0;
885 }
886
887 static int sony_find_snc_handle(int handle)
888 {
889         int i;
890
891         /* not initialized yet, return early */
892         if (!handles || !handle)
893                 return -EINVAL;
894
895         for (i = 0; i < 0x10; i++) {
896                 if (handles->cap[i] == handle) {
897                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
898                                         handle, i);
899                         return i;
900                 }
901         }
902         dprintk("handle 0x%.4x not found\n", handle);
903         return -EINVAL;
904 }
905
906 static int sony_call_snc_handle(int handle, int argument, int *result)
907 {
908         int arg, ret = 0;
909         int offset = sony_find_snc_handle(handle);
910
911         if (offset < 0)
912                 return offset;
913
914         arg = offset | argument;
915         ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
916         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
917         return ret;
918 }
919
920 /*
921  * sony_nc_values input/output validate functions
922  */
923
924 /* brightness_default_validate:
925  *
926  * manipulate input output values to keep consistency with the
927  * backlight framework for which brightness values are 0-based.
928  */
929 static int brightness_default_validate(const int direction, const int value)
930 {
931         switch (direction) {
932                 case SNC_VALIDATE_OUT:
933                         return value - 1;
934                 case SNC_VALIDATE_IN:
935                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
936                                 return value + 1;
937         }
938         return -EINVAL;
939 }
940
941 /* boolean_validate:
942  *
943  * on input validate boolean values 0/1, on output just pass the
944  * received value.
945  */
946 static int boolean_validate(const int direction, const int value)
947 {
948         if (direction == SNC_VALIDATE_IN) {
949                 if (value != 0 && value != 1)
950                         return -EINVAL;
951         }
952         return value;
953 }
954
955 /*
956  * Sysfs show/store common to all sony_nc_values
957  */
958 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
959                               char *buffer)
960 {
961         int value, ret = 0;
962         struct sony_nc_value *item =
963             container_of(attr, struct sony_nc_value, devattr);
964
965         if (!*item->acpiget)
966                 return -EIO;
967
968         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
969                                 &value);
970         if (ret < 0)
971                 return -EIO;
972
973         if (item->validate)
974                 value = item->validate(SNC_VALIDATE_OUT, value);
975
976         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
977 }
978
979 static ssize_t sony_nc_sysfs_store(struct device *dev,
980                                struct device_attribute *attr,
981                                const char *buffer, size_t count)
982 {
983         int value;
984         int ret = 0;
985         struct sony_nc_value *item =
986             container_of(attr, struct sony_nc_value, devattr);
987
988         if (!item->acpiset)
989                 return -EIO;
990
991         if (count > 31)
992                 return -EINVAL;
993
994         if (kstrtoint(buffer, 10, &value))
995                 return -EINVAL;
996
997         if (item->validate)
998                 value = item->validate(SNC_VALIDATE_IN, value);
999
1000         if (value < 0)
1001                 return value;
1002
1003         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1004                                &value, NULL);
1005         if (ret < 0)
1006                 return -EIO;
1007
1008         item->value = value;
1009         item->valid = 1;
1010         return count;
1011 }
1012
1013
1014 /*
1015  * Backlight device
1016  */
1017 struct sony_backlight_props {
1018         struct backlight_device *dev;
1019         int                     handle;
1020         int                     cmd_base;
1021         u8                      offset;
1022         u8                      maxlvl;
1023 };
1024 struct sony_backlight_props sony_bl_props;
1025
1026 static int sony_backlight_update_status(struct backlight_device *bd)
1027 {
1028         int arg = bd->props.brightness + 1;
1029         return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1030 }
1031
1032 static int sony_backlight_get_brightness(struct backlight_device *bd)
1033 {
1034         int value;
1035
1036         if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1037                 return 0;
1038         /* brightness levels are 1-based, while backlight ones are 0-based */
1039         return value - 1;
1040 }
1041
1042 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1043 {
1044         int result;
1045         struct sony_backlight_props *sdev =
1046                 (struct sony_backlight_props *)bl_get_data(bd);
1047
1048         sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1049
1050         return (result & 0xff) - sdev->offset;
1051 }
1052
1053 static int sony_nc_update_status_ng(struct backlight_device *bd)
1054 {
1055         int value, result;
1056         struct sony_backlight_props *sdev =
1057                 (struct sony_backlight_props *)bl_get_data(bd);
1058
1059         value = bd->props.brightness + sdev->offset;
1060         if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1061                                 &result))
1062                 return -EIO;
1063
1064         return value;
1065 }
1066
1067 static const struct backlight_ops sony_backlight_ops = {
1068         .options = BL_CORE_SUSPENDRESUME,
1069         .update_status = sony_backlight_update_status,
1070         .get_brightness = sony_backlight_get_brightness,
1071 };
1072 static const struct backlight_ops sony_backlight_ng_ops = {
1073         .options = BL_CORE_SUSPENDRESUME,
1074         .update_status = sony_nc_update_status_ng,
1075         .get_brightness = sony_nc_get_brightness_ng,
1076 };
1077
1078 /*
1079  * New SNC-only Vaios event mapping to driver known keys
1080  */
1081 struct sony_nc_event {
1082         u8      data;
1083         u8      event;
1084 };
1085
1086 static struct sony_nc_event sony_100_events[] = {
1087         { 0x90, SONYPI_EVENT_PKEY_P1 },
1088         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1089         { 0x91, SONYPI_EVENT_PKEY_P2 },
1090         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1091         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1092         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1093         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1094         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1095         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1096         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1097         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1098         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1099         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1100         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1101         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1102         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1103         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1104         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1105         { 0x88, SONYPI_EVENT_FNKEY_F8 },
1106         { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1107         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1108         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1109         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1110         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1111         { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1112         { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1113         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1114         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1115         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1116         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1118         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1120         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1121         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1122         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1123         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1124         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1125         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1126         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1127         { 0, 0 },
1128 };
1129
1130 static struct sony_nc_event sony_127_events[] = {
1131         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1132         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133         { 0x82, SONYPI_EVENT_PKEY_P1 },
1134         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135         { 0x83, SONYPI_EVENT_PKEY_P2 },
1136         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137         { 0x84, SONYPI_EVENT_PKEY_P3 },
1138         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1139         { 0x85, SONYPI_EVENT_PKEY_P4 },
1140         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1141         { 0x86, SONYPI_EVENT_PKEY_P5 },
1142         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1143         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1144         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1145         { 0, 0 },
1146 };
1147
1148 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1149 {
1150         int ret = -EINVAL;
1151         unsigned int result = 0;
1152         struct sony_nc_event *key_event;
1153
1154         if (sony_call_snc_handle(handle, 0x200, &result)) {
1155                 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1156                                 event);
1157                 return -EINVAL;
1158         }
1159
1160         result &= 0xFF;
1161
1162         if (handle == 0x0100)
1163                 key_event = sony_100_events;
1164         else
1165                 key_event = sony_127_events;
1166
1167         for (; key_event->data; key_event++) {
1168                 if (key_event->data == result) {
1169                         ret = key_event->event;
1170                         break;
1171                 }
1172         }
1173
1174         if (!key_event->data)
1175                 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1176                                 event, result, handle);
1177
1178         return ret;
1179 }
1180
1181 /*
1182  * ACPI callbacks
1183  */
1184 enum event_types {
1185         HOTKEY = 1,
1186         KILLSWITCH,
1187         GFX_SWITCH
1188 };
1189 static void sony_nc_notify(struct acpi_device *device, u32 event)
1190 {
1191         u32 real_ev = event;
1192         u8 ev_type = 0;
1193         dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1194
1195         if (event >= 0x90) {
1196                 unsigned int result = 0;
1197                 unsigned int arg = 0;
1198                 unsigned int handle = 0;
1199                 unsigned int offset = event - 0x90;
1200
1201                 if (offset >= ARRAY_SIZE(handles->cap)) {
1202                         pr_err("Event 0x%x outside of capabilities list\n",
1203                                         event);
1204                         return;
1205                 }
1206                 handle = handles->cap[offset];
1207
1208                 /* list of handles known for generating events */
1209                 switch (handle) {
1210                 /* hotkey event */
1211                 case 0x0100:
1212                 case 0x0127:
1213                         ev_type = HOTKEY;
1214                         real_ev = sony_nc_hotkeys_decode(event, handle);
1215
1216                         if (real_ev > 0)
1217                                 sony_laptop_report_input_event(real_ev);
1218                         else
1219                                 /* restore the original event for reporting */
1220                                 real_ev = event;
1221
1222                         break;
1223
1224                 /* wlan switch */
1225                 case 0x0124:
1226                 case 0x0135:
1227                         /* events on this handle are reported when the
1228                          * switch changes position or for battery
1229                          * events. We'll notify both of them but only
1230                          * update the rfkill device status when the
1231                          * switch is moved.
1232                          */
1233                         ev_type = KILLSWITCH;
1234                         sony_call_snc_handle(handle, 0x0100, &result);
1235                         real_ev = result & 0x03;
1236
1237                         /* hw switch event */
1238                         if (real_ev == 1)
1239                                 sony_nc_rfkill_update();
1240
1241                         break;
1242
1243                 case 0x0128:
1244                 case 0x0146:
1245                         /* Hybrid GFX switching */
1246                         sony_call_snc_handle(handle, 0x0000, &result);
1247                         dprintk("GFX switch event received (reason: %s)\n",
1248                                         (result == 0x1) ? "switch change" :
1249                                         (result == 0x2) ? "output switch" :
1250                                         (result == 0x3) ? "output switch" :
1251                                         "");
1252
1253                         ev_type = GFX_SWITCH;
1254                         real_ev = __sony_nc_gfx_switch_status_get();
1255                         break;
1256
1257                 case 0x015B:
1258                         /* Hybrid GFX switching SVS151290S */
1259                         ev_type = GFX_SWITCH;
1260                         real_ev = __sony_nc_gfx_switch_status_get();
1261                         break;
1262                 default:
1263                         dprintk("Unknown event 0x%x for handle 0x%x\n",
1264                                         event, handle);
1265                         break;
1266                 }
1267
1268                 /* clear the event (and the event reason when present) */
1269                 arg = 1 << offset;
1270                 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1271
1272         } else {
1273                 /* old style event */
1274                 ev_type = HOTKEY;
1275                 sony_laptop_report_input_event(real_ev);
1276         }
1277         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1278                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1279 }
1280
1281 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1282                                       void *context, void **return_value)
1283 {
1284         struct acpi_device_info *info;
1285
1286         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1287                 pr_warn("method: name: %4.4s, args %X\n",
1288                         (char *)&info->name, info->param_count);
1289
1290                 kfree(info);
1291         }
1292
1293         return AE_OK;
1294 }
1295
1296 /*
1297  * ACPI device
1298  */
1299 static void sony_nc_function_setup(struct acpi_device *device,
1300                 struct platform_device *pf_device)
1301 {
1302         unsigned int i, result, bitmask, arg;
1303
1304         if (!handles)
1305                 return;
1306
1307         /* setup found handles here */
1308         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1309                 unsigned int handle = handles->cap[i];
1310
1311                 if (!handle)
1312                         continue;
1313
1314                 dprintk("setting up handle 0x%.4x\n", handle);
1315
1316                 switch (handle) {
1317                 case 0x0100:
1318                 case 0x0101:
1319                 case 0x0127:
1320                         /* setup hotkeys */
1321                         sony_call_snc_handle(handle, 0, &result);
1322                         break;
1323                 case 0x0102:
1324                         /* setup hotkeys */
1325                         sony_call_snc_handle(handle, 0x100, &result);
1326                         break;
1327                 case 0x0105:
1328                 case 0x0148:
1329                         /* touchpad enable/disable */
1330                         result = sony_nc_touchpad_setup(pf_device, handle);
1331                         if (result)
1332                                 pr_err("couldn't set up touchpad control function (%d)\n",
1333                                                 result);
1334                         break;
1335                 case 0x0115:
1336                 case 0x0136:
1337                 case 0x013f:
1338                         result = sony_nc_battery_care_setup(pf_device, handle);
1339                         if (result)
1340                                 pr_err("couldn't set up battery care function (%d)\n",
1341                                                 result);
1342                         break;
1343                 case 0x0119:
1344                         result = sony_nc_lid_resume_setup(pf_device);
1345                         if (result)
1346                                 pr_err("couldn't set up lid resume function (%d)\n",
1347                                                 result);
1348                         break;
1349                 case 0x0122:
1350                         result = sony_nc_thermal_setup(pf_device);
1351                         if (result)
1352                                 pr_err("couldn't set up thermal profile function (%d)\n",
1353                                                 result);
1354                         break;
1355                 case 0x0128:
1356                 case 0x0146:
1357                 case 0x015B:
1358                         result = sony_nc_gfx_switch_setup(pf_device, handle);
1359                         if (result)
1360                                 pr_err("couldn't set up GFX Switch status (%d)\n",
1361                                                 result);
1362                         break;
1363                 case 0x0131:
1364                         result = sony_nc_highspeed_charging_setup(pf_device);
1365                         if (result)
1366                                 pr_err("couldn't set up high speed charging function (%d)\n",
1367                                        result);
1368                         break;
1369                 case 0x0124:
1370                 case 0x0135:
1371                         result = sony_nc_rfkill_setup(device, handle);
1372                         if (result)
1373                                 pr_err("couldn't set up rfkill support (%d)\n",
1374                                                 result);
1375                         break;
1376                 case 0x0137:
1377                 case 0x0143:
1378                 case 0x014b:
1379                 case 0x014c:
1380                 case 0x0163:
1381                         result = sony_nc_kbd_backlight_setup(pf_device, handle);
1382                         if (result)
1383                                 pr_err("couldn't set up keyboard backlight function (%d)\n",
1384                                                 result);
1385                         break;
1386                 default:
1387                         continue;
1388                 }
1389         }
1390
1391         /* Enable all events */
1392         arg = 0x10;
1393         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1394                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1395                                 &result);
1396 }
1397
1398 static void sony_nc_function_cleanup(struct platform_device *pd)
1399 {
1400         unsigned int i, result, bitmask, handle;
1401
1402         /* get enabled events and disable them */
1403         sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1404         sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1405
1406         /* cleanup handles here */
1407         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1408
1409                 handle = handles->cap[i];
1410
1411                 if (!handle)
1412                         continue;
1413
1414                 switch (handle) {
1415                 case 0x0105:
1416                 case 0x0148:
1417                         sony_nc_touchpad_cleanup(pd);
1418                         break;
1419                 case 0x0115:
1420                 case 0x0136:
1421                 case 0x013f:
1422                         sony_nc_battery_care_cleanup(pd);
1423                         break;
1424                 case 0x0119:
1425                         sony_nc_lid_resume_cleanup(pd);
1426                         break;
1427                 case 0x0122:
1428                         sony_nc_thermal_cleanup(pd);
1429                         break;
1430                 case 0x0128:
1431                 case 0x0146:
1432                 case 0x015B:
1433                         sony_nc_gfx_switch_cleanup(pd);
1434                         break;
1435                 case 0x0131:
1436                         sony_nc_highspeed_charging_cleanup(pd);
1437                         break;
1438                 case 0x0124:
1439                 case 0x0135:
1440                         sony_nc_rfkill_cleanup();
1441                         break;
1442                 case 0x0137:
1443                 case 0x0143:
1444                 case 0x014b:
1445                 case 0x014c:
1446                 case 0x0163:
1447                         sony_nc_kbd_backlight_cleanup(pd, handle);
1448                         break;
1449                 default:
1450                         continue;
1451                 }
1452         }
1453
1454         /* finally cleanup the handles list */
1455         sony_nc_handles_cleanup(pd);
1456 }
1457
1458 #ifdef CONFIG_PM_SLEEP
1459 static void sony_nc_function_resume(void)
1460 {
1461         unsigned int i, result, bitmask, arg;
1462
1463         dprintk("Resuming SNC device\n");
1464
1465         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1466                 unsigned int handle = handles->cap[i];
1467
1468                 if (!handle)
1469                         continue;
1470
1471                 switch (handle) {
1472                 case 0x0100:
1473                 case 0x0101:
1474                 case 0x0127:
1475                         /* re-enable hotkeys */
1476                         sony_call_snc_handle(handle, 0, &result);
1477                         break;
1478                 case 0x0102:
1479                         /* re-enable hotkeys */
1480                         sony_call_snc_handle(handle, 0x100, &result);
1481                         break;
1482                 case 0x0122:
1483                         sony_nc_thermal_resume();
1484                         break;
1485                 case 0x0124:
1486                 case 0x0135:
1487                         sony_nc_rfkill_update();
1488                         break;
1489                 default:
1490                         continue;
1491                 }
1492         }
1493
1494         /* Enable all events */
1495         arg = 0x10;
1496         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1497                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1498                                 &result);
1499 }
1500
1501 static int sony_nc_resume(struct device *dev)
1502 {
1503         struct sony_nc_value *item;
1504
1505         for (item = sony_nc_values; item->name; item++) {
1506                 int ret;
1507
1508                 if (!item->valid)
1509                         continue;
1510                 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1511                                        &item->value, NULL);
1512                 if (ret < 0) {
1513                         pr_err("%s: %d\n", __func__, ret);
1514                         break;
1515                 }
1516         }
1517
1518         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1519                 int arg = 1;
1520                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1521                         dprintk("ECON Method failed\n");
1522         }
1523
1524         if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1525                 sony_nc_function_resume();
1526
1527         return 0;
1528 }
1529 #endif
1530
1531 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1532
1533 static void sony_nc_rfkill_cleanup(void)
1534 {
1535         int i;
1536
1537         for (i = 0; i < N_SONY_RFKILL; i++) {
1538                 if (sony_rfkill_devices[i]) {
1539                         rfkill_unregister(sony_rfkill_devices[i]);
1540                         rfkill_destroy(sony_rfkill_devices[i]);
1541                 }
1542         }
1543 }
1544
1545 static int sony_nc_rfkill_set(void *data, bool blocked)
1546 {
1547         int result;
1548         int argument = sony_rfkill_address[(long) data] + 0x100;
1549
1550         if (!blocked)
1551                 argument |= 0x070000;
1552
1553         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1554 }
1555
1556 static const struct rfkill_ops sony_rfkill_ops = {
1557         .set_block = sony_nc_rfkill_set,
1558 };
1559
1560 static int sony_nc_setup_rfkill(struct acpi_device *device,
1561                                 enum sony_nc_rfkill nc_type)
1562 {
1563         int err = 0;
1564         struct rfkill *rfk;
1565         enum rfkill_type type;
1566         const char *name;
1567         int result;
1568         bool hwblock, swblock;
1569
1570         switch (nc_type) {
1571         case SONY_WIFI:
1572                 type = RFKILL_TYPE_WLAN;
1573                 name = "sony-wifi";
1574                 break;
1575         case SONY_BLUETOOTH:
1576                 type = RFKILL_TYPE_BLUETOOTH;
1577                 name = "sony-bluetooth";
1578                 break;
1579         case SONY_WWAN:
1580                 type = RFKILL_TYPE_WWAN;
1581                 name = "sony-wwan";
1582                 break;
1583         case SONY_WIMAX:
1584                 type = RFKILL_TYPE_WIMAX;
1585                 name = "sony-wimax";
1586                 break;
1587         default:
1588                 return -EINVAL;
1589         }
1590
1591         rfk = rfkill_alloc(name, &device->dev, type,
1592                            &sony_rfkill_ops, (void *)nc_type);
1593         if (!rfk)
1594                 return -ENOMEM;
1595
1596         if (sony_call_snc_handle(sony_rfkill_handle, 0x200, &result) < 0) {
1597                 rfkill_destroy(rfk);
1598                 return -1;
1599         }
1600         hwblock = !(result & 0x1);
1601
1602         if (sony_call_snc_handle(sony_rfkill_handle,
1603                                 sony_rfkill_address[nc_type],
1604                                 &result) < 0) {
1605                 rfkill_destroy(rfk);
1606                 return -1;
1607         }
1608         swblock = !(result & 0x2);
1609
1610         rfkill_init_sw_state(rfk, swblock);
1611         rfkill_set_hw_state(rfk, hwblock);
1612
1613         err = rfkill_register(rfk);
1614         if (err) {
1615                 rfkill_destroy(rfk);
1616                 return err;
1617         }
1618         sony_rfkill_devices[nc_type] = rfk;
1619         return err;
1620 }
1621
1622 static void sony_nc_rfkill_update(void)
1623 {
1624         enum sony_nc_rfkill i;
1625         int result;
1626         bool hwblock;
1627
1628         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1629         hwblock = !(result & 0x1);
1630
1631         for (i = 0; i < N_SONY_RFKILL; i++) {
1632                 int argument = sony_rfkill_address[i];
1633
1634                 if (!sony_rfkill_devices[i])
1635                         continue;
1636
1637                 if (hwblock) {
1638                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1639                                 /* we already know we're blocked */
1640                         }
1641                         continue;
1642                 }
1643
1644                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1645                 rfkill_set_states(sony_rfkill_devices[i],
1646                                   !(result & 0x2), false);
1647         }
1648 }
1649
1650 static int sony_nc_rfkill_setup(struct acpi_device *device,
1651                 unsigned int handle)
1652 {
1653         u64 offset;
1654         int i;
1655         unsigned char buffer[32] = { 0 };
1656
1657         offset = sony_find_snc_handle(handle);
1658         sony_rfkill_handle = handle;
1659
1660         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1661                         32);
1662         if (i < 0)
1663                 return i;
1664
1665         /* The buffer is filled with magic numbers describing the devices
1666          * available, 0xff terminates the enumeration.
1667          * Known codes:
1668          *      0x00 WLAN
1669          *      0x10 BLUETOOTH
1670          *      0x20 WWAN GPRS-EDGE
1671          *      0x21 WWAN HSDPA
1672          *      0x22 WWAN EV-DO
1673          *      0x23 WWAN GPS
1674          *      0x25 Gobi WWAN no GPS
1675          *      0x26 Gobi WWAN + GPS
1676          *      0x28 Gobi WWAN no GPS
1677          *      0x29 Gobi WWAN + GPS
1678          *      0x30 WIMAX
1679          *      0x50 Gobi WWAN no GPS
1680          *      0x51 Gobi WWAN + GPS
1681          *      0x70 no SIM card slot
1682          *      0x71 SIM card slot
1683          */
1684         for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1685
1686                 if (buffer[i] == 0xff)
1687                         break;
1688
1689                 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1690
1691                 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1692                         sony_nc_setup_rfkill(device, SONY_WIFI);
1693
1694                 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1695                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1696
1697                 if (((0xf0 & buffer[i]) == 0x20 ||
1698                                         (0xf0 & buffer[i]) == 0x50) &&
1699                                 !sony_rfkill_devices[SONY_WWAN])
1700                         sony_nc_setup_rfkill(device, SONY_WWAN);
1701
1702                 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1703                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1704         }
1705         return 0;
1706 }
1707
1708 /* Keyboard backlight feature */
1709 struct kbd_backlight {
1710         unsigned int handle;
1711         unsigned int base;
1712         unsigned int mode;
1713         unsigned int timeout;
1714         struct device_attribute mode_attr;
1715         struct device_attribute timeout_attr;
1716 };
1717
1718 static struct kbd_backlight *kbdbl_ctl;
1719
1720 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1721 {
1722         int result;
1723
1724         if (value > 1)
1725                 return -EINVAL;
1726
1727         if (sony_call_snc_handle(kbdbl_ctl->handle,
1728                                 (value << 0x10) | (kbdbl_ctl->base), &result))
1729                 return -EIO;
1730
1731         /* Try to turn the light on/off immediately */
1732         sony_call_snc_handle(kbdbl_ctl->handle,
1733                         (value << 0x10) | (kbdbl_ctl->base + 0x100), &result);
1734
1735         kbdbl_ctl->mode = value;
1736
1737         return 0;
1738 }
1739
1740 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1741                 struct device_attribute *attr,
1742                 const char *buffer, size_t count)
1743 {
1744         int ret = 0;
1745         unsigned long value;
1746
1747         if (count > 31)
1748                 return -EINVAL;
1749
1750         if (kstrtoul(buffer, 10, &value))
1751                 return -EINVAL;
1752
1753         ret = __sony_nc_kbd_backlight_mode_set(value);
1754         if (ret < 0)
1755                 return ret;
1756
1757         return count;
1758 }
1759
1760 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1761                 struct device_attribute *attr, char *buffer)
1762 {
1763         ssize_t count = 0;
1764         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1765         return count;
1766 }
1767
1768 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1769 {
1770         int result;
1771
1772         if (value > 3)
1773                 return -EINVAL;
1774
1775         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1776                                 (kbdbl_ctl->base + 0x200), &result))
1777                 return -EIO;
1778
1779         kbdbl_ctl->timeout = value;
1780
1781         return 0;
1782 }
1783
1784 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1785                 struct device_attribute *attr,
1786                 const char *buffer, size_t count)
1787 {
1788         int ret = 0;
1789         unsigned long value;
1790
1791         if (count > 31)
1792                 return -EINVAL;
1793
1794         if (kstrtoul(buffer, 10, &value))
1795                 return -EINVAL;
1796
1797         ret = __sony_nc_kbd_backlight_timeout_set(value);
1798         if (ret < 0)
1799                 return ret;
1800
1801         return count;
1802 }
1803
1804 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1805                 struct device_attribute *attr, char *buffer)
1806 {
1807         ssize_t count = 0;
1808         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1809         return count;
1810 }
1811
1812 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1813                 unsigned int handle)
1814 {
1815         int result;
1816         int ret = 0;
1817
1818         if (kbdbl_ctl) {
1819                 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1820                                 handle, kbdbl_ctl->handle);
1821                 return -EBUSY;
1822         }
1823
1824         /* verify the kbd backlight presence, these handles are not used for
1825          * keyboard backlight only
1826          */
1827         ret = sony_call_snc_handle(handle, handle == 0x0137 ? 0x0B00 : 0x0100,
1828                         &result);
1829         if (ret)
1830                 return ret;
1831
1832         if ((handle == 0x0137 && !(result & 0x02)) ||
1833                         !(result & 0x01)) {
1834                 dprintk("no backlight keyboard found\n");
1835                 return 0;
1836         }
1837
1838         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1839         if (!kbdbl_ctl)
1840                 return -ENOMEM;
1841
1842         kbdbl_ctl->mode = kbd_backlight;
1843         kbdbl_ctl->timeout = kbd_backlight_timeout;
1844         kbdbl_ctl->handle = handle;
1845         if (handle == 0x0137)
1846                 kbdbl_ctl->base = 0x0C00;
1847         else
1848                 kbdbl_ctl->base = 0x4000;
1849
1850         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1851         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1852         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1853         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1854         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1855
1856         sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1857         kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1858         kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1859         kbdbl_ctl->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1860         kbdbl_ctl->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1861
1862         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1863         if (ret)
1864                 goto outkzalloc;
1865
1866         ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1867         if (ret)
1868                 goto outmode;
1869
1870         __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1871         __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1872
1873         return 0;
1874
1875 outmode:
1876         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1877 outkzalloc:
1878         kfree(kbdbl_ctl);
1879         kbdbl_ctl = NULL;
1880         return ret;
1881 }
1882
1883 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1884                 unsigned int handle)
1885 {
1886         if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1887                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1888                 device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1889                 kfree(kbdbl_ctl);
1890                 kbdbl_ctl = NULL;
1891         }
1892 }
1893
1894 struct battery_care_control {
1895         struct device_attribute attrs[2];
1896         unsigned int handle;
1897 };
1898 static struct battery_care_control *bcare_ctl;
1899
1900 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1901                 struct device_attribute *attr,
1902                 const char *buffer, size_t count)
1903 {
1904         unsigned int result, cmd;
1905         unsigned long value;
1906
1907         if (count > 31)
1908                 return -EINVAL;
1909
1910         if (kstrtoul(buffer, 10, &value))
1911                 return -EINVAL;
1912
1913         /*  limit values (2 bits):
1914          *  00 - none
1915          *  01 - 80%
1916          *  10 - 50%
1917          *  11 - 100%
1918          *
1919          *  bit 0: 0 disable BCL, 1 enable BCL
1920          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1921          *  bits 2,3: reserved
1922          *  bits 4,5: store the limit into the EC
1923          *  bits 6,7: store the limit into the battery
1924          */
1925         cmd = 0;
1926
1927         if (value > 0) {
1928                 if (value <= 50)
1929                         cmd = 0x20;
1930
1931                 else if (value <= 80)
1932                         cmd = 0x10;
1933
1934                 else if (value <= 100)
1935                         cmd = 0x30;
1936
1937                 else
1938                         return -EINVAL;
1939
1940                 /*
1941                  * handle 0x0115 should allow storing on battery too;
1942                  * handle 0x0136 same as 0x0115 + health status;
1943                  * handle 0x013f, same as 0x0136 but no storing on the battery
1944                  */
1945                 if (bcare_ctl->handle != 0x013f)
1946                         cmd = cmd | (cmd << 2);
1947
1948                 cmd = (cmd | 0x1) << 0x10;
1949         }
1950
1951         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
1952                 return -EIO;
1953
1954         return count;
1955 }
1956
1957 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
1958                 struct device_attribute *attr, char *buffer)
1959 {
1960         unsigned int result, status;
1961
1962         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
1963                 return -EIO;
1964
1965         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
1966         switch (status) {
1967         case 1:
1968                 status = 80;
1969                 break;
1970         case 2:
1971                 status = 50;
1972                 break;
1973         case 3:
1974                 status = 100;
1975                 break;
1976         default:
1977                 status = 0;
1978                 break;
1979         }
1980
1981         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
1982 }
1983
1984 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
1985                 struct device_attribute *attr, char *buffer)
1986 {
1987         ssize_t count = 0;
1988         unsigned int health;
1989
1990         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
1991                 return -EIO;
1992
1993         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
1994
1995         return count;
1996 }
1997
1998 static int sony_nc_battery_care_setup(struct platform_device *pd,
1999                 unsigned int handle)
2000 {
2001         int ret = 0;
2002
2003         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2004         if (!bcare_ctl)
2005                 return -ENOMEM;
2006
2007         bcare_ctl->handle = handle;
2008
2009         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2010         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2011         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2012         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2013         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2014
2015         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2016         if (ret)
2017                 goto outkzalloc;
2018
2019         /* 0x0115 is for models with no health reporting capability */
2020         if (handle == 0x0115)
2021                 return 0;
2022
2023         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2024         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2025         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2026         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2027
2028         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2029         if (ret)
2030                 goto outlimiter;
2031
2032         return 0;
2033
2034 outlimiter:
2035         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2036
2037 outkzalloc:
2038         kfree(bcare_ctl);
2039         bcare_ctl = NULL;
2040
2041         return ret;
2042 }
2043
2044 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2045 {
2046         if (bcare_ctl) {
2047                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2048                 if (bcare_ctl->handle != 0x0115)
2049                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2050
2051                 kfree(bcare_ctl);
2052                 bcare_ctl = NULL;
2053         }
2054 }
2055
2056 struct snc_thermal_ctrl {
2057         unsigned int mode;
2058         unsigned int profiles;
2059         struct device_attribute mode_attr;
2060         struct device_attribute profiles_attr;
2061 };
2062 static struct snc_thermal_ctrl *th_handle;
2063
2064 #define THM_PROFILE_MAX 3
2065 static const char * const snc_thermal_profiles[] = {
2066         "balanced",
2067         "silent",
2068         "performance"
2069 };
2070
2071 static int sony_nc_thermal_mode_set(unsigned short mode)
2072 {
2073         unsigned int result;
2074
2075         /* the thermal profile seems to be a two bit bitmask:
2076          * lsb -> silent
2077          * msb -> performance
2078          * no bit set is the normal operation and is always valid
2079          * Some vaio models only have "balanced" and "performance"
2080          */
2081         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2082                 return -EINVAL;
2083
2084         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2085                 return -EIO;
2086
2087         th_handle->mode = mode;
2088
2089         return 0;
2090 }
2091
2092 static int sony_nc_thermal_mode_get(void)
2093 {
2094         unsigned int result;
2095
2096         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2097                 return -EIO;
2098
2099         return result & 0xff;
2100 }
2101
2102 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2103                 struct device_attribute *attr, char *buffer)
2104 {
2105         short cnt;
2106         size_t idx = 0;
2107
2108         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2109                 if (!cnt || (th_handle->profiles & cnt))
2110                         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2111                                         snc_thermal_profiles[cnt]);
2112         }
2113         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2114
2115         return idx;
2116 }
2117
2118 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2119                 struct device_attribute *attr,
2120                 const char *buffer, size_t count)
2121 {
2122         unsigned short cmd;
2123         size_t len = count;
2124
2125         if (count == 0)
2126                 return -EINVAL;
2127
2128         /* skip the newline if present */
2129         if (buffer[len - 1] == '\n')
2130                 len--;
2131
2132         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2133                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2134                         break;
2135
2136         if (sony_nc_thermal_mode_set(cmd))
2137                 return -EIO;
2138
2139         return count;
2140 }
2141
2142 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2143                 struct device_attribute *attr, char *buffer)
2144 {
2145         ssize_t count = 0;
2146         int mode = sony_nc_thermal_mode_get();
2147
2148         if (mode < 0)
2149                 return mode;
2150
2151         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2152
2153         return count;
2154 }
2155
2156 static int sony_nc_thermal_setup(struct platform_device *pd)
2157 {
2158         int ret = 0;
2159         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2160         if (!th_handle)
2161                 return -ENOMEM;
2162
2163         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2164         if (ret) {
2165                 pr_warn("couldn't to read the thermal profiles\n");
2166                 goto outkzalloc;
2167         }
2168
2169         ret = sony_nc_thermal_mode_get();
2170         if (ret < 0) {
2171                 pr_warn("couldn't to read the current thermal profile");
2172                 goto outkzalloc;
2173         }
2174         th_handle->mode = ret;
2175
2176         sysfs_attr_init(&th_handle->profiles_attr.attr);
2177         th_handle->profiles_attr.attr.name = "thermal_profiles";
2178         th_handle->profiles_attr.attr.mode = S_IRUGO;
2179         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2180
2181         sysfs_attr_init(&th_handle->mode_attr.attr);
2182         th_handle->mode_attr.attr.name = "thermal_control";
2183         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2184         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2185         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2186
2187         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2188         if (ret)
2189                 goto outkzalloc;
2190
2191         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2192         if (ret)
2193                 goto outprofiles;
2194
2195         return 0;
2196
2197 outprofiles:
2198         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2199 outkzalloc:
2200         kfree(th_handle);
2201         th_handle = NULL;
2202         return ret;
2203 }
2204
2205 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2206 {
2207         if (th_handle) {
2208                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2209                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2210                 kfree(th_handle);
2211                 th_handle = NULL;
2212         }
2213 }
2214
2215 #ifdef CONFIG_PM_SLEEP
2216 static void sony_nc_thermal_resume(void)
2217 {
2218         unsigned int status = sony_nc_thermal_mode_get();
2219
2220         if (status != th_handle->mode)
2221                 sony_nc_thermal_mode_set(th_handle->mode);
2222 }
2223 #endif
2224
2225 /* resume on LID open */
2226 struct snc_lid_resume_control {
2227         struct device_attribute attrs[3];
2228         unsigned int status;
2229 };
2230 static struct snc_lid_resume_control *lid_ctl;
2231
2232 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2233                                         struct device_attribute *attr,
2234                                         const char *buffer, size_t count)
2235 {
2236         unsigned int result, pos;
2237         unsigned long value;
2238         if (count > 31)
2239                 return -EINVAL;
2240
2241         if (kstrtoul(buffer, 10, &value) || value > 1)
2242                 return -EINVAL;
2243
2244         /* the value we have to write to SNC is a bitmask:
2245          * +--------------+
2246          * | S3 | S4 | S5 |
2247          * +--------------+
2248          *   2    1    0
2249          */
2250         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2251                 pos = 2;
2252         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2253                 pos = 1;
2254         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2255                 pos = 0;
2256         else
2257                return -EINVAL;
2258
2259         if (value)
2260                 value = lid_ctl->status | (1 << pos);
2261         else
2262                 value = lid_ctl->status & ~(1 << pos);
2263
2264         if (sony_call_snc_handle(0x0119, value << 0x10 | 0x0100, &result))
2265                 return -EIO;
2266
2267         lid_ctl->status = value;
2268
2269         return count;
2270 }
2271
2272 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2273                                        struct device_attribute *attr, char *buffer)
2274 {
2275         unsigned int pos;
2276
2277         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2278                 pos = 2;
2279         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2280                 pos = 1;
2281         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2282                 pos = 0;
2283         else
2284                 return -EINVAL;
2285                
2286         return snprintf(buffer, PAGE_SIZE, "%d\n",
2287                         (lid_ctl->status >> pos) & 0x01);
2288 }
2289
2290 static int sony_nc_lid_resume_setup(struct platform_device *pd)
2291 {
2292         unsigned int result;
2293         int i;
2294
2295         if (sony_call_snc_handle(0x0119, 0x0000, &result))
2296                 return -EIO;
2297
2298         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2299         if (!lid_ctl)
2300                 return -ENOMEM;
2301
2302         lid_ctl->status = result & 0x7;
2303
2304         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2305         lid_ctl->attrs[0].attr.name = "lid_resume_S3";
2306         lid_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2307         lid_ctl->attrs[0].show = sony_nc_lid_resume_show;
2308         lid_ctl->attrs[0].store = sony_nc_lid_resume_store;
2309
2310         sysfs_attr_init(&lid_ctl->attrs[1].attr);
2311         lid_ctl->attrs[1].attr.name = "lid_resume_S4";
2312         lid_ctl->attrs[1].attr.mode = S_IRUGO | S_IWUSR;
2313         lid_ctl->attrs[1].show = sony_nc_lid_resume_show;
2314         lid_ctl->attrs[1].store = sony_nc_lid_resume_store;
2315
2316         sysfs_attr_init(&lid_ctl->attrs[2].attr);
2317         lid_ctl->attrs[2].attr.name = "lid_resume_S5";
2318         lid_ctl->attrs[2].attr.mode = S_IRUGO | S_IWUSR;
2319         lid_ctl->attrs[2].show = sony_nc_lid_resume_show;
2320         lid_ctl->attrs[2].store = sony_nc_lid_resume_store;
2321
2322         for (i = 0; i < 3; i++) {
2323                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2324                 if (result)
2325                         goto liderror;
2326         }
2327
2328         return 0;
2329
2330 liderror:
2331         for (i--; i >= 0; i--)
2332                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2333
2334         kfree(lid_ctl);
2335         lid_ctl = NULL;
2336
2337         return result;
2338 }
2339
2340 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2341 {
2342         int i;
2343
2344         if (lid_ctl) {
2345                 for (i = 0; i < 3; i++)
2346                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2347
2348                 kfree(lid_ctl);
2349                 lid_ctl = NULL;
2350         }
2351 }
2352
2353 /* GFX Switch position */
2354 enum gfx_switch {
2355         SPEED,
2356         STAMINA,
2357         AUTO
2358 };
2359 struct snc_gfx_switch_control {
2360         struct device_attribute attr;
2361         unsigned int handle;
2362 };
2363 static struct snc_gfx_switch_control *gfxs_ctl;
2364
2365 /* returns 0 for speed, 1 for stamina */
2366 static int __sony_nc_gfx_switch_status_get(void)
2367 {
2368         unsigned int result;
2369
2370         if (sony_call_snc_handle(gfxs_ctl->handle,
2371                                 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2372                                 &result))
2373                 return -EIO;
2374
2375         switch (gfxs_ctl->handle) {
2376         case 0x0146:
2377                 /* 1: discrete GFX (speed)
2378                  * 0: integrated GFX (stamina)
2379                  */
2380                 return result & 0x1 ? SPEED : STAMINA;
2381                 break;
2382         case 0x015B:
2383                 /* 0: discrete GFX (speed)
2384                  * 1: integrated GFX (stamina)
2385                  */
2386                 return result & 0x1 ? STAMINA : SPEED;
2387                 break;
2388         case 0x0128:
2389                 /* it's a more elaborated bitmask, for now:
2390                  * 2: integrated GFX (stamina)
2391                  * 0: discrete GFX (speed)
2392                  */
2393                 dprintk("GFX Status: 0x%x\n", result);
2394                 return result & 0x80 ? AUTO :
2395                         result & 0x02 ? STAMINA : SPEED;
2396                 break;
2397         }
2398         return -EINVAL;
2399 }
2400
2401 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2402                                        struct device_attribute *attr,
2403                                        char *buffer)
2404 {
2405         int pos = __sony_nc_gfx_switch_status_get();
2406
2407         if (pos < 0)
2408                 return pos;
2409
2410         return snprintf(buffer, PAGE_SIZE, "%s\n",
2411                                         pos == SPEED ? "speed" :
2412                                         pos == STAMINA ? "stamina" :
2413                                         pos == AUTO ? "auto" : "unknown");
2414 }
2415
2416 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2417                 unsigned int handle)
2418 {
2419         unsigned int result;
2420
2421         gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2422         if (!gfxs_ctl)
2423                 return -ENOMEM;
2424
2425         gfxs_ctl->handle = handle;
2426
2427         sysfs_attr_init(&gfxs_ctl->attr.attr);
2428         gfxs_ctl->attr.attr.name = "gfx_switch_status";
2429         gfxs_ctl->attr.attr.mode = S_IRUGO;
2430         gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2431
2432         result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2433         if (result)
2434                 goto gfxerror;
2435
2436         return 0;
2437
2438 gfxerror:
2439         kfree(gfxs_ctl);
2440         gfxs_ctl = NULL;
2441
2442         return result;
2443 }
2444
2445 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2446 {
2447         if (gfxs_ctl) {
2448                 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2449
2450                 kfree(gfxs_ctl);
2451                 gfxs_ctl = NULL;
2452         }
2453 }
2454
2455 /* High speed charging function */
2456 static struct device_attribute *hsc_handle;
2457
2458 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2459                 struct device_attribute *attr,
2460                 const char *buffer, size_t count)
2461 {
2462         unsigned int result;
2463         unsigned long value;
2464
2465         if (count > 31)
2466                 return -EINVAL;
2467
2468         if (kstrtoul(buffer, 10, &value) || value > 1)
2469                 return -EINVAL;
2470
2471         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2472                 return -EIO;
2473
2474         return count;
2475 }
2476
2477 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2478                 struct device_attribute *attr, char *buffer)
2479 {
2480         unsigned int result;
2481
2482         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2483                 return -EIO;
2484
2485         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2486 }
2487
2488 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2489 {
2490         unsigned int result;
2491
2492         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2493                 /* some models advertise the handle but have no implementation
2494                  * for it
2495                  */
2496                 pr_info("No High Speed Charging capability found\n");
2497                 return 0;
2498         }
2499
2500         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2501         if (!hsc_handle)
2502                 return -ENOMEM;
2503
2504         sysfs_attr_init(&hsc_handle->attr);
2505         hsc_handle->attr.name = "battery_highspeed_charging";
2506         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2507         hsc_handle->show = sony_nc_highspeed_charging_show;
2508         hsc_handle->store = sony_nc_highspeed_charging_store;
2509
2510         result = device_create_file(&pd->dev, hsc_handle);
2511         if (result) {
2512                 kfree(hsc_handle);
2513                 hsc_handle = NULL;
2514                 return result;
2515         }
2516
2517         return 0;
2518 }
2519
2520 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2521 {
2522         if (hsc_handle) {
2523                 device_remove_file(&pd->dev, hsc_handle);
2524                 kfree(hsc_handle);
2525                 hsc_handle = NULL;
2526         }
2527 }
2528
2529 /* Touchpad enable/disable */
2530 struct touchpad_control {
2531         struct device_attribute attr;
2532         int handle;
2533 };
2534 static struct touchpad_control *tp_ctl;
2535
2536 static ssize_t sony_nc_touchpad_store(struct device *dev,
2537                 struct device_attribute *attr, const char *buffer, size_t count)
2538 {
2539         unsigned int result;
2540         unsigned long value;
2541
2542         if (count > 31)
2543                 return -EINVAL;
2544
2545         if (kstrtoul(buffer, 10, &value) || value > 1)
2546                 return -EINVAL;
2547
2548         /* sysfs: 0 disabled, 1 enabled
2549          * EC: 0 enabled, 1 disabled
2550          */
2551         if (sony_call_snc_handle(tp_ctl->handle,
2552                                 (!value << 0x10) | 0x100, &result))
2553                 return -EIO;
2554
2555         return count;
2556 }
2557
2558 static ssize_t sony_nc_touchpad_show(struct device *dev,
2559                 struct device_attribute *attr, char *buffer)
2560 {
2561         unsigned int result;
2562
2563         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
2564                 return -EINVAL;
2565
2566         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
2567 }
2568
2569 static int sony_nc_touchpad_setup(struct platform_device *pd,
2570                 unsigned int handle)
2571 {
2572         int ret = 0;
2573
2574         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
2575         if (!tp_ctl)
2576                 return -ENOMEM;
2577
2578         tp_ctl->handle = handle;
2579
2580         sysfs_attr_init(&tp_ctl->attr.attr);
2581         tp_ctl->attr.attr.name = "touchpad";
2582         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
2583         tp_ctl->attr.show = sony_nc_touchpad_show;
2584         tp_ctl->attr.store = sony_nc_touchpad_store;
2585
2586         ret = device_create_file(&pd->dev, &tp_ctl->attr);
2587         if (ret) {
2588                 kfree(tp_ctl);
2589                 tp_ctl = NULL;
2590         }
2591
2592         return ret;
2593 }
2594
2595 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
2596 {
2597         if (tp_ctl) {
2598                 device_remove_file(&pd->dev, &tp_ctl->attr);
2599                 kfree(tp_ctl);
2600                 tp_ctl = NULL;
2601         }
2602 }
2603
2604 static void sony_nc_backlight_ng_read_limits(int handle,
2605                 struct sony_backlight_props *props)
2606 {
2607         u64 offset;
2608         int i;
2609         int lvl_table_len = 0;
2610         u8 min = 0xff, max = 0x00;
2611         unsigned char buffer[32] = { 0 };
2612
2613         props->handle = handle;
2614         props->offset = 0;
2615         props->maxlvl = 0xff;
2616
2617         offset = sony_find_snc_handle(handle);
2618
2619         /* try to read the boundaries from ACPI tables, if we fail the above
2620          * defaults should be reasonable
2621          */
2622         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
2623                         32);
2624         if (i < 0)
2625                 return;
2626
2627         switch (handle) {
2628         case 0x012f:
2629         case 0x0137:
2630                 lvl_table_len = 9;
2631                 break;
2632         case 0x143:
2633         case 0x14b:
2634         case 0x14c:
2635                 lvl_table_len = 16;
2636                 break;
2637         }
2638
2639         /* the buffer lists brightness levels available, brightness levels are
2640          * from position 0 to 8 in the array, other values are used by ALS
2641          * control.
2642          */
2643         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
2644
2645                 dprintk("Brightness level: %d\n", buffer[i]);
2646
2647                 if (!buffer[i])
2648                         break;
2649
2650                 if (buffer[i] > max)
2651                         max = buffer[i];
2652                 if (buffer[i] < min)
2653                         min = buffer[i];
2654         }
2655         props->offset = min;
2656         props->maxlvl = max;
2657         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
2658                         props->maxlvl);
2659 }
2660
2661 static void sony_nc_backlight_setup(void)
2662 {
2663         int max_brightness = 0;
2664         const struct backlight_ops *ops = NULL;
2665         struct backlight_properties props;
2666
2667         if (sony_find_snc_handle(0x12f) >= 0) {
2668                 ops = &sony_backlight_ng_ops;
2669                 sony_bl_props.cmd_base = 0x0100;
2670                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
2671                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2672
2673         } else if (sony_find_snc_handle(0x137) >= 0) {
2674                 ops = &sony_backlight_ng_ops;
2675                 sony_bl_props.cmd_base = 0x0100;
2676                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
2677                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2678
2679         } else if (sony_find_snc_handle(0x143) >= 0) {
2680                 ops = &sony_backlight_ng_ops;
2681                 sony_bl_props.cmd_base = 0x3000;
2682                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
2683                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2684
2685         } else if (sony_find_snc_handle(0x14b) >= 0) {
2686                 ops = &sony_backlight_ng_ops;
2687                 sony_bl_props.cmd_base = 0x3000;
2688                 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
2689                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2690
2691         } else if (sony_find_snc_handle(0x14c) >= 0) {
2692                 ops = &sony_backlight_ng_ops;
2693                 sony_bl_props.cmd_base = 0x3000;
2694                 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
2695                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2696
2697         } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
2698                 ops = &sony_backlight_ops;
2699                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
2700
2701         } else
2702                 return;
2703
2704         memset(&props, 0, sizeof(struct backlight_properties));
2705         props.type = BACKLIGHT_PLATFORM;
2706         props.max_brightness = max_brightness;
2707         sony_bl_props.dev = backlight_device_register("sony", NULL,
2708                                                       &sony_bl_props,
2709                                                       ops, &props);
2710
2711         if (IS_ERR(sony_bl_props.dev)) {
2712                 pr_warn("unable to register backlight device\n");
2713                 sony_bl_props.dev = NULL;
2714         } else
2715                 sony_bl_props.dev->props.brightness =
2716                         ops->get_brightness(sony_bl_props.dev);
2717 }
2718
2719 static void sony_nc_backlight_cleanup(void)
2720 {
2721         if (sony_bl_props.dev)
2722                 backlight_device_unregister(sony_bl_props.dev);
2723 }
2724
2725 static int sony_nc_add(struct acpi_device *device)
2726 {
2727         acpi_status status;
2728         int result = 0;
2729         struct sony_nc_value *item;
2730
2731         pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2732
2733         sony_nc_acpi_device = device;
2734         strcpy(acpi_device_class(device), "sony/hotkey");
2735
2736         sony_nc_acpi_handle = device->handle;
2737
2738         /* read device status */
2739         result = acpi_bus_get_status(device);
2740         /* bail IFF the above call was successful and the device is not present */
2741         if (!result && !device->status.present) {
2742                 dprintk("Device not present\n");
2743                 result = -ENODEV;
2744                 goto outwalk;
2745         }
2746
2747         result = sony_pf_add();
2748         if (result)
2749                 goto outpresent;
2750
2751         if (debug) {
2752                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
2753                                 sony_nc_acpi_handle, 1, sony_walk_callback,
2754                                 NULL, NULL, NULL);
2755                 if (ACPI_FAILURE(status)) {
2756                         pr_warn("unable to walk acpi resources\n");
2757                         result = -ENODEV;
2758                         goto outpresent;
2759                 }
2760         }
2761
2762         result = sony_laptop_setup_input(device);
2763         if (result) {
2764                 pr_err("Unable to create input devices\n");
2765                 goto outplatform;
2766         }
2767
2768         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
2769                 int arg = 1;
2770                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
2771                         dprintk("ECON Method failed\n");
2772         }
2773
2774         if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
2775                 dprintk("Doing SNC setup\n");
2776                 /* retrieve the available handles */
2777                 result = sony_nc_handles_setup(sony_pf_device);
2778                 if (!result)
2779                         sony_nc_function_setup(device, sony_pf_device);
2780         }
2781
2782         /* setup input devices and helper fifo */
2783         if (acpi_video_backlight_support()) {
2784                 pr_info("brightness ignored, must be controlled by ACPI video driver\n");
2785         } else {
2786                 sony_nc_backlight_setup();
2787         }
2788
2789         /* create sony_pf sysfs attributes related to the SNC device */
2790         for (item = sony_nc_values; item->name; ++item) {
2791
2792                 if (!debug && item->debug)
2793                         continue;
2794
2795                 /* find the available acpiget as described in the DSDT */
2796                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
2797                         if (acpi_has_method(sony_nc_acpi_handle,
2798                                                         *item->acpiget)) {
2799                                 dprintk("Found %s getter: %s\n",
2800                                                 item->name, *item->acpiget);
2801                                 item->devattr.attr.mode |= S_IRUGO;
2802                                 break;
2803                         }
2804                 }
2805
2806                 /* find the available acpiset as described in the DSDT */
2807                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
2808                         if (acpi_has_method(sony_nc_acpi_handle,
2809                                                         *item->acpiset)) {
2810                                 dprintk("Found %s setter: %s\n",
2811                                                 item->name, *item->acpiset);
2812                                 item->devattr.attr.mode |= S_IWUSR;
2813                                 break;
2814                         }
2815                 }
2816
2817                 if (item->devattr.attr.mode != 0) {
2818                         result =
2819                             device_create_file(&sony_pf_device->dev,
2820                                                &item->devattr);
2821                         if (result)
2822                                 goto out_sysfs;
2823                 }
2824         }
2825
2826         return 0;
2827
2828 out_sysfs:
2829         for (item = sony_nc_values; item->name; ++item) {
2830                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2831         }
2832         sony_nc_backlight_cleanup();
2833         sony_nc_function_cleanup(sony_pf_device);
2834         sony_nc_handles_cleanup(sony_pf_device);
2835
2836 outplatform:
2837         sony_laptop_remove_input();
2838
2839 outpresent:
2840         sony_pf_remove();
2841
2842 outwalk:
2843         sony_nc_rfkill_cleanup();
2844         return result;
2845 }
2846
2847 static int sony_nc_remove(struct acpi_device *device)
2848 {
2849         struct sony_nc_value *item;
2850
2851         sony_nc_backlight_cleanup();
2852
2853         sony_nc_acpi_device = NULL;
2854
2855         for (item = sony_nc_values; item->name; ++item) {
2856                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2857         }
2858
2859         sony_nc_function_cleanup(sony_pf_device);
2860         sony_nc_handles_cleanup(sony_pf_device);
2861         sony_pf_remove();
2862         sony_laptop_remove_input();
2863         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
2864
2865         return 0;
2866 }
2867
2868 static const struct acpi_device_id sony_device_ids[] = {
2869         {SONY_NC_HID, 0},
2870         {SONY_PIC_HID, 0},
2871         {"", 0},
2872 };
2873 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
2874
2875 static const struct acpi_device_id sony_nc_device_ids[] = {
2876         {SONY_NC_HID, 0},
2877         {"", 0},
2878 };
2879
2880 static struct acpi_driver sony_nc_driver = {
2881         .name = SONY_NC_DRIVER_NAME,
2882         .class = SONY_NC_CLASS,
2883         .ids = sony_nc_device_ids,
2884         .owner = THIS_MODULE,
2885         .ops = {
2886                 .add = sony_nc_add,
2887                 .remove = sony_nc_remove,
2888                 .notify = sony_nc_notify,
2889                 },
2890         .drv.pm = &sony_nc_pm,
2891 };
2892
2893 /*********** SPIC (SNY6001) Device ***********/
2894
2895 #define SONYPI_DEVICE_TYPE1     0x00000001
2896 #define SONYPI_DEVICE_TYPE2     0x00000002
2897 #define SONYPI_DEVICE_TYPE3     0x00000004
2898
2899 #define SONYPI_TYPE1_OFFSET     0x04
2900 #define SONYPI_TYPE2_OFFSET     0x12
2901 #define SONYPI_TYPE3_OFFSET     0x12
2902
2903 struct sony_pic_ioport {
2904         struct acpi_resource_io io1;
2905         struct acpi_resource_io io2;
2906         struct list_head        list;
2907 };
2908
2909 struct sony_pic_irq {
2910         struct acpi_resource_irq        irq;
2911         struct list_head                list;
2912 };
2913
2914 struct sonypi_eventtypes {
2915         u8                      data;
2916         unsigned long           mask;
2917         struct sonypi_event     *events;
2918 };
2919
2920 struct sony_pic_dev {
2921         struct acpi_device              *acpi_dev;
2922         struct sony_pic_irq             *cur_irq;
2923         struct sony_pic_ioport          *cur_ioport;
2924         struct list_head                interrupts;
2925         struct list_head                ioports;
2926         struct mutex                    lock;
2927         struct sonypi_eventtypes        *event_types;
2928         int                             (*handle_irq)(const u8, const u8);
2929         int                             model;
2930         u16                             evport_offset;
2931         u8                              camera_power;
2932         u8                              bluetooth_power;
2933         u8                              wwan_power;
2934 };
2935
2936 static struct sony_pic_dev spic_dev = {
2937         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
2938         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
2939 };
2940
2941 static int spic_drv_registered;
2942
2943 /* Event masks */
2944 #define SONYPI_JOGGER_MASK                      0x00000001
2945 #define SONYPI_CAPTURE_MASK                     0x00000002
2946 #define SONYPI_FNKEY_MASK                       0x00000004
2947 #define SONYPI_BLUETOOTH_MASK                   0x00000008
2948 #define SONYPI_PKEY_MASK                        0x00000010
2949 #define SONYPI_BACK_MASK                        0x00000020
2950 #define SONYPI_HELP_MASK                        0x00000040
2951 #define SONYPI_LID_MASK                         0x00000080
2952 #define SONYPI_ZOOM_MASK                        0x00000100
2953 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
2954 #define SONYPI_MEYE_MASK                        0x00000400
2955 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
2956 #define SONYPI_BATTERY_MASK                     0x00001000
2957 #define SONYPI_WIRELESS_MASK                    0x00002000
2958
2959 struct sonypi_event {
2960         u8      data;
2961         u8      event;
2962 };
2963
2964 /* The set of possible button release events */
2965 static struct sonypi_event sonypi_releaseev[] = {
2966         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
2967         { 0, 0 }
2968 };
2969
2970 /* The set of possible jogger events  */
2971 static struct sonypi_event sonypi_joggerev[] = {
2972         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
2973         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
2974         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
2975         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
2976         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
2977         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
2978         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
2979         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
2980         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
2981         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
2982         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
2983         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
2984         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
2985         { 0, 0 }
2986 };
2987
2988 /* The set of possible capture button events */
2989 static struct sonypi_event sonypi_captureev[] = {
2990         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
2991         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
2992         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
2993         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
2994         { 0, 0 }
2995 };
2996
2997 /* The set of possible fnkeys events */
2998 static struct sonypi_event sonypi_fnkeyev[] = {
2999         { 0x10, SONYPI_EVENT_FNKEY_ESC },
3000         { 0x11, SONYPI_EVENT_FNKEY_F1 },
3001         { 0x12, SONYPI_EVENT_FNKEY_F2 },
3002         { 0x13, SONYPI_EVENT_FNKEY_F3 },
3003         { 0x14, SONYPI_EVENT_FNKEY_F4 },
3004         { 0x15, SONYPI_EVENT_FNKEY_F5 },
3005         { 0x16, SONYPI_EVENT_FNKEY_F6 },
3006         { 0x17, SONYPI_EVENT_FNKEY_F7 },
3007         { 0x18, SONYPI_EVENT_FNKEY_F8 },
3008         { 0x19, SONYPI_EVENT_FNKEY_F9 },
3009         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3010         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3011         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3012         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3013         { 0x21, SONYPI_EVENT_FNKEY_1 },
3014         { 0x22, SONYPI_EVENT_FNKEY_2 },
3015         { 0x31, SONYPI_EVENT_FNKEY_D },
3016         { 0x32, SONYPI_EVENT_FNKEY_E },
3017         { 0x33, SONYPI_EVENT_FNKEY_F },
3018         { 0x34, SONYPI_EVENT_FNKEY_S },
3019         { 0x35, SONYPI_EVENT_FNKEY_B },
3020         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3021         { 0, 0 }
3022 };
3023
3024 /* The set of possible program key events */
3025 static struct sonypi_event sonypi_pkeyev[] = {
3026         { 0x01, SONYPI_EVENT_PKEY_P1 },
3027         { 0x02, SONYPI_EVENT_PKEY_P2 },
3028         { 0x04, SONYPI_EVENT_PKEY_P3 },
3029         { 0x20, SONYPI_EVENT_PKEY_P1 },
3030         { 0, 0 }
3031 };
3032
3033 /* The set of possible bluetooth events */
3034 static struct sonypi_event sonypi_blueev[] = {
3035         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3036         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3037         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3038         { 0, 0 }
3039 };
3040
3041 /* The set of possible wireless events */
3042 static struct sonypi_event sonypi_wlessev[] = {
3043         { 0x59, SONYPI_EVENT_IGNORE },
3044         { 0x5a, SONYPI_EVENT_IGNORE },
3045         { 0, 0 }
3046 };
3047
3048 /* The set of possible back button events */
3049 static struct sonypi_event sonypi_backev[] = {
3050         { 0x20, SONYPI_EVENT_BACK_PRESSED },
3051         { 0, 0 }
3052 };
3053
3054 /* The set of possible help button events */
3055 static struct sonypi_event sonypi_helpev[] = {
3056         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3057         { 0, 0 }
3058 };
3059
3060
3061 /* The set of possible lid events */
3062 static struct sonypi_event sonypi_lidev[] = {
3063         { 0x51, SONYPI_EVENT_LID_CLOSED },
3064         { 0x50, SONYPI_EVENT_LID_OPENED },
3065         { 0, 0 }
3066 };
3067
3068 /* The set of possible zoom events */
3069 static struct sonypi_event sonypi_zoomev[] = {
3070         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3071         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3072         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3073         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3074         { 0, 0 }
3075 };
3076
3077 /* The set of possible thumbphrase events */
3078 static struct sonypi_event sonypi_thumbphraseev[] = {
3079         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3080         { 0, 0 }
3081 };
3082
3083 /* The set of possible motioneye camera events */
3084 static struct sonypi_event sonypi_meyeev[] = {
3085         { 0x00, SONYPI_EVENT_MEYE_FACE },
3086         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3087         { 0, 0 }
3088 };
3089
3090 /* The set of possible memorystick events */
3091 static struct sonypi_event sonypi_memorystickev[] = {
3092         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3093         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3094         { 0, 0 }
3095 };
3096
3097 /* The set of possible battery events */
3098 static struct sonypi_event sonypi_batteryev[] = {
3099         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3100         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3101         { 0, 0 }
3102 };
3103
3104 /* The set of possible volume events */
3105 static struct sonypi_event sonypi_volumeev[] = {
3106         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3107         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3108         { 0, 0 }
3109 };
3110
3111 /* The set of possible brightness events */
3112 static struct sonypi_event sonypi_brightnessev[] = {
3113         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3114         { 0, 0 }
3115 };
3116
3117 static struct sonypi_eventtypes type1_events[] = {
3118         { 0, 0xffffffff, sonypi_releaseev },
3119         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3120         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3121         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3122         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3123         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3124         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3125         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3126         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3127         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3128         { 0 },
3129 };
3130 static struct sonypi_eventtypes type2_events[] = {
3131         { 0, 0xffffffff, sonypi_releaseev },
3132         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3133         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3134         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3135         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3136         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3137         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3138         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3139         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3140         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3141         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3142         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3143         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3144         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3145         { 0 },
3146 };
3147 static struct sonypi_eventtypes type3_events[] = {
3148         { 0, 0xffffffff, sonypi_releaseev },
3149         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3150         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3151         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3152         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3153         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3154         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3155         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3156         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3157         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3158         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3159         { 0 },
3160 };
3161
3162 /* low level spic calls */
3163 #define ITERATIONS_LONG         10000
3164 #define ITERATIONS_SHORT        10
3165 #define wait_on_command(command, iterations) {                          \
3166         unsigned int n = iterations;                                    \
3167         while (--n && (command))                                        \
3168                 udelay(1);                                              \
3169         if (!n)                                                         \
3170                 dprintk("command failed at %s : %s (line %d)\n",        \
3171                                 __FILE__, __func__, __LINE__);  \
3172 }
3173
3174 static u8 sony_pic_call1(u8 dev)
3175 {
3176         u8 v1, v2;
3177
3178         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3179                         ITERATIONS_LONG);
3180         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3181         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3182         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3183         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3184         return v2;
3185 }
3186
3187 static u8 sony_pic_call2(u8 dev, u8 fn)
3188 {
3189         u8 v1;
3190
3191         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3192                         ITERATIONS_LONG);
3193         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3194         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3195                         ITERATIONS_LONG);
3196         outb(fn, spic_dev.cur_ioport->io1.minimum);
3197         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3198