1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * ACPI Sony Notebook Control Driver (SNC and SPIC)
4  *
5  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
6  * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
7  *
8  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
9  * which are copyrighted by their respective authors.
10  *
11  * The SNY6001 driver part is based on the sonypi driver which includes
12  * material from:
13  *
14  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
15  *
16  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
17  *
18  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
19  *
20  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
21  *
22  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
23  *
24  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
25  *
26  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
27  *
28  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
29  */
30 
31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 
33 #include <linux/kernel.h>
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/init.h>
37 #include <linux/types.h>
38 #include <linux/backlight.h>
39 #include <linux/platform_device.h>
40 #include <linux/err.h>
41 #include <linux/dmi.h>
42 #include <linux/pci.h>
43 #include <linux/interrupt.h>
44 #include <linux/delay.h>
45 #include <linux/input.h>
46 #include <linux/kfifo.h>
47 #include <linux/workqueue.h>
48 #include <linux/acpi.h>
49 #include <linux/slab.h>
50 #include <linux/sonypi.h>
51 #include <linux/sony-laptop.h>
52 #include <linux/rfkill.h>
53 #ifdef CONFIG_SONYPI_COMPAT
54 #include <linux/poll.h>
55 #include <linux/miscdevice.h>
56 #endif
57 #include <linux/uaccess.h>
58 #include <acpi/video.h>
59 
60 #define dprintk(fmt, ...)			\
61 do {						\
62 	if (debug)				\
63 		pr_warn(fmt, ##__VA_ARGS__);	\
64 } while (0)
65 
66 #define SONY_NC_CLASS		"sony-nc"
67 #define SONY_NC_HID		"SNY5001"
68 #define SONY_NC_DRIVER_NAME	"Sony Notebook Control Driver"
69 
70 #define SONY_PIC_CLASS		"sony-pic"
71 #define SONY_PIC_HID		"SNY6001"
72 #define SONY_PIC_DRIVER_NAME	"Sony Programmable IO Control Driver"
73 
74 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
75 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
76 MODULE_LICENSE("GPL");
77 
78 static int debug;
79 module_param(debug, int, 0);
80 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
81 		 "the development of this driver");
82 
83 static int no_spic;		/* = 0 */
84 module_param(no_spic, int, 0444);
85 MODULE_PARM_DESC(no_spic,
86 		 "set this if you don't want to enable the SPIC device");
87 
88 static int compat;		/* = 0 */
89 module_param(compat, int, 0444);
90 MODULE_PARM_DESC(compat,
91 		 "set this if you want to enable backward compatibility mode");
92 
93 static unsigned long mask = 0xffffffff;
94 module_param(mask, ulong, 0644);
95 MODULE_PARM_DESC(mask,
96 		 "set this to the mask of event you want to enable (see doc)");
97 
98 static int camera;		/* = 0 */
99 module_param(camera, int, 0444);
100 MODULE_PARM_DESC(camera,
101 		 "set this to 1 to enable Motion Eye camera controls "
102 		 "(only use it if you have a C1VE or C1VN model)");
103 
104 #ifdef CONFIG_SONYPI_COMPAT
105 static int minor = -1;
106 module_param(minor, int, 0);
107 MODULE_PARM_DESC(minor,
108 		 "minor number of the misc device for the SPIC compatibility code, "
109 		 "default is -1 (automatic)");
110 #endif
111 
112 static int kbd_backlight = -1;
113 module_param(kbd_backlight, int, 0444);
114 MODULE_PARM_DESC(kbd_backlight,
115 		 "set this to 0 to disable keyboard backlight, "
116 		 "1 to enable it with automatic control and 2 to have it always "
117 		 "on (default: no change from current value)");
118 
119 static int kbd_backlight_timeout = -1;
120 module_param(kbd_backlight_timeout, int, 0444);
121 MODULE_PARM_DESC(kbd_backlight_timeout,
122 		 "meaningful values vary from 0 to 3 and their meaning depends "
123 		 "on the model (default: no change from current value)");
124 
125 #ifdef CONFIG_PM_SLEEP
126 static void sony_nc_thermal_resume(void);
127 #endif
128 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
129 		unsigned int handle);
130 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
131 		unsigned int handle);
132 
133 static int sony_nc_battery_care_setup(struct platform_device *pd,
134 		unsigned int handle);
135 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
136 
137 static int sony_nc_thermal_setup(struct platform_device *pd);
138 static void sony_nc_thermal_cleanup(struct platform_device *pd);
139 
140 static int sony_nc_lid_resume_setup(struct platform_device *pd,
141 				    unsigned int handle);
142 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
143 
144 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
145 		unsigned int handle);
146 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
147 static int __sony_nc_gfx_switch_status_get(void);
148 
149 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
150 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
151 
152 static int sony_nc_lowbatt_setup(struct platform_device *pd);
153 static void sony_nc_lowbatt_cleanup(struct platform_device *pd);
154 
155 static int sony_nc_fanspeed_setup(struct platform_device *pd);
156 static void sony_nc_fanspeed_cleanup(struct platform_device *pd);
157 
158 static int sony_nc_usb_charge_setup(struct platform_device *pd);
159 static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
160 
161 static int sony_nc_panelid_setup(struct platform_device *pd);
162 static void sony_nc_panelid_cleanup(struct platform_device *pd);
163 
164 static int sony_nc_smart_conn_setup(struct platform_device *pd);
165 static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
166 
167 static int sony_nc_touchpad_setup(struct platform_device *pd,
168 				  unsigned int handle);
169 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
170 
171 enum sony_nc_rfkill {
172 	SONY_WIFI,
173 	SONY_BLUETOOTH,
174 	SONY_WWAN,
175 	SONY_WIMAX,
176 	N_SONY_RFKILL,
177 };
178 
179 static int sony_rfkill_handle;
180 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
181 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
182 static int sony_nc_rfkill_setup(struct acpi_device *device,
183 		unsigned int handle);
184 static void sony_nc_rfkill_cleanup(void);
185 static void sony_nc_rfkill_update(void);
186 
187 /*********** Input Devices ***********/
188 
189 #define SONY_LAPTOP_BUF_SIZE	128
190 struct sony_laptop_input_s {
191 	atomic_t		users;
192 	struct input_dev	*jog_dev;
193 	struct input_dev	*key_dev;
194 	struct kfifo		fifo;
195 	spinlock_t		fifo_lock;
196 	struct timer_list	release_key_timer;
197 };
198 
199 static struct sony_laptop_input_s sony_laptop_input = {
200 	.users = ATOMIC_INIT(0),
201 };
202 
203 struct sony_laptop_keypress {
204 	struct input_dev *dev;
205 	int key;
206 };
207 
208 /* Correspondance table between sonypi events
209  * and input layer indexes in the keymap
210  */
211 static const int sony_laptop_input_index[] = {
212 	-1,	/*  0 no event */
213 	-1,	/*  1 SONYPI_EVENT_JOGDIAL_DOWN */
214 	-1,	/*  2 SONYPI_EVENT_JOGDIAL_UP */
215 	-1,	/*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
216 	-1,	/*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
217 	-1,	/*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
218 	-1,	/*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
219 	 0,	/*  7 SONYPI_EVENT_CAPTURE_PRESSED */
220 	 1,	/*  8 SONYPI_EVENT_CAPTURE_RELEASED */
221 	 2,	/*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
222 	 3,	/* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
223 	 4,	/* 11 SONYPI_EVENT_FNKEY_ESC */
224 	 5,	/* 12 SONYPI_EVENT_FNKEY_F1 */
225 	 6,	/* 13 SONYPI_EVENT_FNKEY_F2 */
226 	 7,	/* 14 SONYPI_EVENT_FNKEY_F3 */
227 	 8,	/* 15 SONYPI_EVENT_FNKEY_F4 */
228 	 9,	/* 16 SONYPI_EVENT_FNKEY_F5 */
229 	10,	/* 17 SONYPI_EVENT_FNKEY_F6 */
230 	11,	/* 18 SONYPI_EVENT_FNKEY_F7 */
231 	12,	/* 19 SONYPI_EVENT_FNKEY_F8 */
232 	13,	/* 20 SONYPI_EVENT_FNKEY_F9 */
233 	14,	/* 21 SONYPI_EVENT_FNKEY_F10 */
234 	15,	/* 22 SONYPI_EVENT_FNKEY_F11 */
235 	16,	/* 23 SONYPI_EVENT_FNKEY_F12 */
236 	17,	/* 24 SONYPI_EVENT_FNKEY_1 */
237 	18,	/* 25 SONYPI_EVENT_FNKEY_2 */
238 	19,	/* 26 SONYPI_EVENT_FNKEY_D */
239 	20,	/* 27 SONYPI_EVENT_FNKEY_E */
240 	21,	/* 28 SONYPI_EVENT_FNKEY_F */
241 	22,	/* 29 SONYPI_EVENT_FNKEY_S */
242 	23,	/* 30 SONYPI_EVENT_FNKEY_B */
243 	24,	/* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
244 	25,	/* 32 SONYPI_EVENT_PKEY_P1 */
245 	26,	/* 33 SONYPI_EVENT_PKEY_P2 */
246 	27,	/* 34 SONYPI_EVENT_PKEY_P3 */
247 	28,	/* 35 SONYPI_EVENT_BACK_PRESSED */
248 	-1,	/* 36 SONYPI_EVENT_LID_CLOSED */
249 	-1,	/* 37 SONYPI_EVENT_LID_OPENED */
250 	29,	/* 38 SONYPI_EVENT_BLUETOOTH_ON */
251 	30,	/* 39 SONYPI_EVENT_BLUETOOTH_OFF */
252 	31,	/* 40 SONYPI_EVENT_HELP_PRESSED */
253 	32,	/* 41 SONYPI_EVENT_FNKEY_ONLY */
254 	33,	/* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
255 	34,	/* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
256 	35,	/* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
257 	36,	/* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
258 	37,	/* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
259 	38,	/* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
260 	39,	/* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
261 	40,	/* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
262 	41,	/* 50 SONYPI_EVENT_ZOOM_PRESSED */
263 	42,	/* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
264 	43,	/* 52 SONYPI_EVENT_MEYE_FACE */
265 	44,	/* 53 SONYPI_EVENT_MEYE_OPPOSITE */
266 	45,	/* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
267 	46,	/* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
268 	-1,	/* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
269 	-1,	/* 57 SONYPI_EVENT_BATTERY_INSERT */
270 	-1,	/* 58 SONYPI_EVENT_BATTERY_REMOVE */
271 	-1,	/* 59 SONYPI_EVENT_FNKEY_RELEASED */
272 	47,	/* 60 SONYPI_EVENT_WIRELESS_ON */
273 	48,	/* 61 SONYPI_EVENT_WIRELESS_OFF */
274 	49,	/* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
275 	50,	/* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
276 	51,	/* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
277 	52,	/* 65 SONYPI_EVENT_MODEKEY_PRESSED */
278 	53,	/* 66 SONYPI_EVENT_PKEY_P4 */
279 	54,	/* 67 SONYPI_EVENT_PKEY_P5 */
280 	55,	/* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
281 	56,	/* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
282 	57,	/* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
283 	-1,	/* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
284 	58,	/* 72 SONYPI_EVENT_MEDIA_PRESSED */
285 	59,	/* 72 SONYPI_EVENT_VENDOR_PRESSED */
286 };
287 
288 static int sony_laptop_input_keycode_map[] = {
289 	KEY_CAMERA,	/*  0 SONYPI_EVENT_CAPTURE_PRESSED */
290 	KEY_RESERVED,	/*  1 SONYPI_EVENT_CAPTURE_RELEASED */
291 	KEY_RESERVED,	/*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
292 	KEY_RESERVED,	/*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
293 	KEY_FN_ESC,	/*  4 SONYPI_EVENT_FNKEY_ESC */
294 	KEY_FN_F1,	/*  5 SONYPI_EVENT_FNKEY_F1 */
295 	KEY_FN_F2,	/*  6 SONYPI_EVENT_FNKEY_F2 */
296 	KEY_FN_F3,	/*  7 SONYPI_EVENT_FNKEY_F3 */
297 	KEY_FN_F4,	/*  8 SONYPI_EVENT_FNKEY_F4 */
298 	KEY_FN_F5,	/*  9 SONYPI_EVENT_FNKEY_F5 */
299 	KEY_FN_F6,	/* 10 SONYPI_EVENT_FNKEY_F6 */
300 	KEY_FN_F7,	/* 11 SONYPI_EVENT_FNKEY_F7 */
301 	KEY_FN_F8,	/* 12 SONYPI_EVENT_FNKEY_F8 */
302 	KEY_FN_F9,	/* 13 SONYPI_EVENT_FNKEY_F9 */
303 	KEY_FN_F10,	/* 14 SONYPI_EVENT_FNKEY_F10 */
304 	KEY_FN_F11,	/* 15 SONYPI_EVENT_FNKEY_F11 */
305 	KEY_FN_F12,	/* 16 SONYPI_EVENT_FNKEY_F12 */
306 	KEY_FN_1,	/* 17 SONYPI_EVENT_FNKEY_1 */
307 	KEY_FN_2,	/* 18 SONYPI_EVENT_FNKEY_2 */
308 	KEY_FN_D,	/* 19 SONYPI_EVENT_FNKEY_D */
309 	KEY_FN_E,	/* 20 SONYPI_EVENT_FNKEY_E */
310 	KEY_FN_F,	/* 21 SONYPI_EVENT_FNKEY_F */
311 	KEY_FN_S,	/* 22 SONYPI_EVENT_FNKEY_S */
312 	KEY_FN_B,	/* 23 SONYPI_EVENT_FNKEY_B */
313 	KEY_BLUETOOTH,	/* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
314 	KEY_PROG1,	/* 25 SONYPI_EVENT_PKEY_P1 */
315 	KEY_PROG2,	/* 26 SONYPI_EVENT_PKEY_P2 */
316 	KEY_PROG3,	/* 27 SONYPI_EVENT_PKEY_P3 */
317 	KEY_BACK,	/* 28 SONYPI_EVENT_BACK_PRESSED */
318 	KEY_BLUETOOTH,	/* 29 SONYPI_EVENT_BLUETOOTH_ON */
319 	KEY_BLUETOOTH,	/* 30 SONYPI_EVENT_BLUETOOTH_OFF */
320 	KEY_HELP,	/* 31 SONYPI_EVENT_HELP_PRESSED */
321 	KEY_FN,		/* 32 SONYPI_EVENT_FNKEY_ONLY */
322 	KEY_RESERVED,	/* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
323 	KEY_RESERVED,	/* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
324 	KEY_RESERVED,	/* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
325 	KEY_RESERVED,	/* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
326 	KEY_RESERVED,	/* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
327 	KEY_RESERVED,	/* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
328 	KEY_RESERVED,	/* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
329 	KEY_RESERVED,	/* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
330 	KEY_ZOOM,	/* 41 SONYPI_EVENT_ZOOM_PRESSED */
331 	BTN_THUMB,	/* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
332 	KEY_RESERVED,	/* 43 SONYPI_EVENT_MEYE_FACE */
333 	KEY_RESERVED,	/* 44 SONYPI_EVENT_MEYE_OPPOSITE */
334 	KEY_RESERVED,	/* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
335 	KEY_RESERVED,	/* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
336 	KEY_WLAN,	/* 47 SONYPI_EVENT_WIRELESS_ON */
337 	KEY_WLAN,	/* 48 SONYPI_EVENT_WIRELESS_OFF */
338 	KEY_ZOOMIN,	/* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
339 	KEY_ZOOMOUT,	/* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
340 	KEY_EJECTCD,	/* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
341 	KEY_F13,	/* 52 SONYPI_EVENT_MODEKEY_PRESSED */
342 	KEY_PROG4,	/* 53 SONYPI_EVENT_PKEY_P4 */
343 	KEY_F14,	/* 54 SONYPI_EVENT_PKEY_P5 */
344 	KEY_F15,	/* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
345 	KEY_VOLUMEUP,	/* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
346 	KEY_VOLUMEDOWN,	/* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
347 	KEY_MEDIA,	/* 58 SONYPI_EVENT_MEDIA_PRESSED */
348 	KEY_VENDOR,	/* 59 SONYPI_EVENT_VENDOR_PRESSED */
349 };
350 
351 /* release buttons after a short delay if pressed */
352 static void do_sony_laptop_release_key(struct timer_list *unused)
353 {
354 	struct sony_laptop_keypress kp;
355 	unsigned long flags;
356 
357 	spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
358 
359 	if (kfifo_out(&sony_laptop_input.fifo,
360 		      (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
361 		input_report_key(kp.dev, kp.key, 0);
362 		input_sync(kp.dev);
363 	}
364 
365 	/* If there is something in the fifo schedule next release. */
366 	if (kfifo_len(&sony_laptop_input.fifo) != 0)
367 		mod_timer(&sony_laptop_input.release_key_timer,
368 			  jiffies + msecs_to_jiffies(10));
369 
370 	spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
371 }
372 
373 /* forward event to the input subsystem */
374 static void sony_laptop_report_input_event(u8 event)
375 {
376 	struct input_dev *jog_dev = sony_laptop_input.jog_dev;
377 	struct input_dev *key_dev = sony_laptop_input.key_dev;
378 	struct sony_laptop_keypress kp = { NULL };
379 	int scancode = -1;
380 
381 	if (event == SONYPI_EVENT_FNKEY_RELEASED ||
382 			event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
383 		/* Nothing, not all VAIOs generate this event */
384 		return;
385 	}
386 
387 	/* report events */
388 	switch (event) {
389 	/* jog_dev events */
390 	case SONYPI_EVENT_JOGDIAL_UP:
391 	case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
392 		input_report_rel(jog_dev, REL_WHEEL, 1);
393 		input_sync(jog_dev);
394 		return;
395 
396 	case SONYPI_EVENT_JOGDIAL_DOWN:
397 	case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
398 		input_report_rel(jog_dev, REL_WHEEL, -1);
399 		input_sync(jog_dev);
400 		return;
401 
402 	/* key_dev events */
403 	case SONYPI_EVENT_JOGDIAL_PRESSED:
404 		kp.key = BTN_MIDDLE;
405 		kp.dev = jog_dev;
406 		break;
407 
408 	default:
409 		if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
410 			dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
411 			break;
412 		}
413 		if ((scancode = sony_laptop_input_index[event]) != -1) {
414 			kp.key = sony_laptop_input_keycode_map[scancode];
415 			if (kp.key != KEY_UNKNOWN)
416 				kp.dev = key_dev;
417 		}
418 		break;
419 	}
420 
421 	if (kp.dev) {
422 		/* if we have a scancode we emit it so we can always
423 		    remap the key */
424 		if (scancode != -1)
425 			input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
426 		input_report_key(kp.dev, kp.key, 1);
427 		input_sync(kp.dev);
428 
429 		/* schedule key release */
430 		kfifo_in_locked(&sony_laptop_input.fifo,
431 				(unsigned char *)&kp, sizeof(kp),
432 				&sony_laptop_input.fifo_lock);
433 		mod_timer(&sony_laptop_input.release_key_timer,
434 			  jiffies + msecs_to_jiffies(10));
435 	} else
436 		dprintk("unknown input event %.2x\n", event);
437 }
438 
439 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
440 {
441 	struct input_dev *jog_dev;
442 	struct input_dev *key_dev;
443 	int i;
444 	int error;
445 
446 	/* don't run again if already initialized */
447 	if (atomic_add_return(1, &sony_laptop_input.users) > 1)
448 		return 0;
449 
450 	/* kfifo */
451 	spin_lock_init(&sony_laptop_input.fifo_lock);
452 	error = kfifo_alloc(&sony_laptop_input.fifo,
453 			    SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
454 	if (error) {
455 		pr_err("kfifo_alloc failed\n");
456 		goto err_dec_users;
457 	}
458 
459 	timer_setup(&sony_laptop_input.release_key_timer,
460 		    do_sony_laptop_release_key, 0);
461 
462 	/* input keys */
463 	key_dev = input_allocate_device();
464 	if (!key_dev) {
465 		error = -ENOMEM;
466 		goto err_free_kfifo;
467 	}
468 
469 	key_dev->name = "Sony Vaio Keys";
470 	key_dev->id.bustype = BUS_ISA;
471 	key_dev->id.vendor = PCI_VENDOR_ID_SONY;
472 	key_dev->dev.parent = &acpi_device->dev;
473 
474 	/* Initialize the Input Drivers: special keys */
475 	input_set_capability(key_dev, EV_MSC, MSC_SCAN);
476 
477 	__set_bit(EV_KEY, key_dev->evbit);
478 	key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
479 	key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
480 	key_dev->keycode = &sony_laptop_input_keycode_map;
481 	for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
482 		__set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
483 	__clear_bit(KEY_RESERVED, key_dev->keybit);
484 
485 	error = input_register_device(key_dev);
486 	if (error)
487 		goto err_free_keydev;
488 
489 	sony_laptop_input.key_dev = key_dev;
490 
491 	/* jogdial */
492 	jog_dev = input_allocate_device();
493 	if (!jog_dev) {
494 		error = -ENOMEM;
495 		goto err_unregister_keydev;
496 	}
497 
498 	jog_dev->name = "Sony Vaio Jogdial";
499 	jog_dev->id.bustype = BUS_ISA;
500 	jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
501 	jog_dev->dev.parent = &acpi_device->dev;
502 
503 	input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
504 	input_set_capability(jog_dev, EV_REL, REL_WHEEL);
505 
506 	error = input_register_device(jog_dev);
507 	if (error)
508 		goto err_free_jogdev;
509 
510 	sony_laptop_input.jog_dev = jog_dev;
511 
512 	return 0;
513 
514 err_free_jogdev:
515 	input_free_device(jog_dev);
516 
517 err_unregister_keydev:
518 	input_unregister_device(key_dev);
519 	/* to avoid kref underflow below at input_free_device */
520 	key_dev = NULL;
521 
522 err_free_keydev:
523 	input_free_device(key_dev);
524 
525 err_free_kfifo:
526 	kfifo_free(&sony_laptop_input.fifo);
527 
528 err_dec_users:
529 	atomic_dec(&sony_laptop_input.users);
530 	return error;
531 }
532 
533 static void sony_laptop_remove_input(void)
534 {
535 	struct sony_laptop_keypress kp = { NULL };
536 
537 	/* Cleanup only after the last user has gone */
538 	if (!atomic_dec_and_test(&sony_laptop_input.users))
539 		return;
540 
541 	del_timer_sync(&sony_laptop_input.release_key_timer);
542 
543 	/*
544 	 * Generate key-up events for remaining keys. Note that we don't
545 	 * need locking since nobody is adding new events to the kfifo.
546 	 */
547 	while (kfifo_out(&sony_laptop_input.fifo,
548 			 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
549 		input_report_key(kp.dev, kp.key, 0);
550 		input_sync(kp.dev);
551 	}
552 
553 	/* destroy input devs */
554 	input_unregister_device(sony_laptop_input.key_dev);
555 	sony_laptop_input.key_dev = NULL;
556 
557 	if (sony_laptop_input.jog_dev) {
558 		input_unregister_device(sony_laptop_input.jog_dev);
559 		sony_laptop_input.jog_dev = NULL;
560 	}
561 
562 	kfifo_free(&sony_laptop_input.fifo);
563 }
564 
565 /*********** Platform Device ***********/
566 
567 static atomic_t sony_pf_users = ATOMIC_INIT(0);
568 static struct platform_driver sony_pf_driver = {
569 	.driver = {
570 		   .name = "sony-laptop",
571 		   }
572 };
573 static struct platform_device *sony_pf_device;
574 
575 static int sony_pf_add(void)
576 {
577 	int ret = 0;
578 
579 	/* don't run again if already initialized */
580 	if (atomic_add_return(1, &sony_pf_users) > 1)
581 		return 0;
582 
583 	ret = platform_driver_register(&sony_pf_driver);
584 	if (ret)
585 		goto out;
586 
587 	sony_pf_device = platform_device_alloc("sony-laptop", -1);
588 	if (!sony_pf_device) {
589 		ret = -ENOMEM;
590 		goto out_platform_registered;
591 	}
592 
593 	ret = platform_device_add(sony_pf_device);
594 	if (ret)
595 		goto out_platform_alloced;
596 
597 	return 0;
598 
599       out_platform_alloced:
600 	platform_device_put(sony_pf_device);
601 	sony_pf_device = NULL;
602       out_platform_registered:
603 	platform_driver_unregister(&sony_pf_driver);
604       out:
605 	atomic_dec(&sony_pf_users);
606 	return ret;
607 }
608 
609 static void sony_pf_remove(void)
610 {
611 	/* deregister only after the last user has gone */
612 	if (!atomic_dec_and_test(&sony_pf_users))
613 		return;
614 
615 	platform_device_unregister(sony_pf_device);
616 	platform_driver_unregister(&sony_pf_driver);
617 }
618 
619 /*********** SNC (SNY5001) Device ***********/
620 
621 /* the device uses 1-based values, while the backlight subsystem uses
622    0-based values */
623 #define SONY_MAX_BRIGHTNESS	8
624 
625 #define SNC_VALIDATE_IN		0
626 #define SNC_VALIDATE_OUT	1
627 
628 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
629 			      char *);
630 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
631 			       const char *, size_t);
632 static int boolean_validate(const int, const int);
633 static int brightness_default_validate(const int, const int);
634 
635 struct sony_nc_value {
636 	char *name;		/* name of the entry */
637 	char **acpiget;		/* names of the ACPI get function */
638 	char **acpiset;		/* names of the ACPI set function */
639 	int (*validate)(const int, const int);	/* input/output validation */
640 	int value;		/* current setting */
641 	int valid;		/* Has ever been set */
642 	int debug;		/* active only in debug mode ? */
643 	struct device_attribute devattr;	/* sysfs attribute */
644 };
645 
646 #define SNC_HANDLE_NAMES(_name, _values...) \
647 	static char *snc_##_name[] = { _values, NULL }
648 
649 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
650 	{ \
651 		.name		= __stringify(_name), \
652 		.acpiget	= _getters, \
653 		.acpiset	= _setters, \
654 		.validate	= _validate, \
655 		.debug		= _debug, \
656 		.devattr	= __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
657 	}
658 
659 #define SNC_HANDLE_NULL	{ .name = NULL }
660 
661 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
662 
663 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
664 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
665 
666 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
667 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
668 
669 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
670 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
671 
672 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
673 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
674 
675 SNC_HANDLE_NAMES(lidstate_get, "GLID");
676 
677 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
678 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
679 
680 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
681 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
682 
683 SNC_HANDLE_NAMES(PID_get, "GPID");
684 
685 SNC_HANDLE_NAMES(CTR_get, "GCTR");
686 SNC_HANDLE_NAMES(CTR_set, "SCTR");
687 
688 SNC_HANDLE_NAMES(PCR_get, "GPCR");
689 SNC_HANDLE_NAMES(PCR_set, "SPCR");
690 
691 SNC_HANDLE_NAMES(CMI_get, "GCMI");
692 SNC_HANDLE_NAMES(CMI_set, "SCMI");
693 
694 static struct sony_nc_value sony_nc_values[] = {
695 	SNC_HANDLE(brightness_default, snc_brightness_def_get,
696 			snc_brightness_def_set, brightness_default_validate, 0),
697 	SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
698 	SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
699 	SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
700 			boolean_validate, 0),
701 	SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
702 			boolean_validate, 1),
703 	SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
704 			boolean_validate, 0),
705 	SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
706 			boolean_validate, 0),
707 	SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
708 			boolean_validate, 0),
709 	/* unknown methods */
710 	SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
711 	SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
712 	SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
713 	SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
714 	SNC_HANDLE_NULL
715 };
716 
717 static acpi_handle sony_nc_acpi_handle;
718 static struct acpi_device *sony_nc_acpi_device = NULL;
719 
720 /*
721  * acpi_evaluate_object wrappers
722  * all useful calls into SNC methods take one or zero parameters and return
723  * integers or arrays.
724  */
725 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
726 		u64 *value)
727 {
728 	union acpi_object *result = NULL;
729 	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
730 	acpi_status status;
731 
732 	if (value) {
733 		struct acpi_object_list params;
734 		union acpi_object in;
735 		in.type = ACPI_TYPE_INTEGER;
736 		in.integer.value = *value;
737 		params.count = 1;
738 		params.pointer = &in;
739 		status = acpi_evaluate_object(handle, method, &params, &output);
740 		dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
741 				(unsigned int)(*value >> 32),
742 				(unsigned int)*value & 0xffffffff);
743 	} else {
744 		status = acpi_evaluate_object(handle, method, NULL, &output);
745 		dprintk("__call_snc_method: [%s]\n", method);
746 	}
747 
748 	if (ACPI_FAILURE(status)) {
749 		pr_err("Failed to evaluate [%s]\n", method);
750 		return NULL;
751 	}
752 
753 	result = (union acpi_object *) output.pointer;
754 	if (!result)
755 		dprintk("No return object [%s]\n", method);
756 
757 	return result;
758 }
759 
760 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
761 		int *result)
762 {
763 	union acpi_object *object = NULL;
764 	if (value) {
765 		u64 v = *value;
766 		object = __call_snc_method(handle, name, &v);
767 	} else
768 		object = __call_snc_method(handle, name, NULL);
769 
770 	if (!object)
771 		return -EINVAL;
772 
773 	if (object->type != ACPI_TYPE_INTEGER) {
774 		pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
775 				ACPI_TYPE_INTEGER, object->type);
776 		kfree(object);
777 		return -EINVAL;
778 	}
779 
780 	if (result)
781 		*result = object->integer.value;
782 
783 	kfree(object);
784 	return 0;
785 }
786 
787 #define MIN(a, b)	(a > b ? b : a)
788 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
789 		void *buffer, size_t buflen)
790 {
791 	int ret = 0;
792 	size_t len;
793 	union acpi_object *object = __call_snc_method(handle, name, value);
794 
795 	if (!object)
796 		return -EINVAL;
797 
798 	if (object->type == ACPI_TYPE_BUFFER) {
799 		len = MIN(buflen, object->buffer.length);
800 		memcpy(buffer, object->buffer.pointer, len);
801 
802 	} else if (object->type == ACPI_TYPE_INTEGER) {
803 		len = MIN(buflen, sizeof(object->integer.value));
804 		memcpy(buffer, &object->integer.value, len);
805 
806 	} else {
807 		pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
808 				ACPI_TYPE_BUFFER, object->type);
809 		ret = -EINVAL;
810 	}
811 
812 	kfree(object);
813 	return ret;
814 }
815 
816 struct sony_nc_handles {
817 	u16 cap[0x10];
818 	struct device_attribute devattr;
819 };
820 
821 static struct sony_nc_handles *handles;
822 
823 static ssize_t sony_nc_handles_show(struct device *dev,
824 		struct device_attribute *attr, char *buffer)
825 {
826 	ssize_t len = 0;
827 	int i;
828 
829 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
830 		len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
831 				handles->cap[i]);
832 	}
833 	len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
834 
835 	return len;
836 }
837 
838 static int sony_nc_handles_setup(struct platform_device *pd)
839 {
840 	int i, r, result, arg;
841 
842 	handles = kzalloc(sizeof(*handles), GFP_KERNEL);
843 	if (!handles)
844 		return -ENOMEM;
845 
846 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
847 		arg = i + 0x20;
848 		r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
849 					&result);
850 		if (!r) {
851 			dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
852 					result, i);
853 			handles->cap[i] = result;
854 		}
855 	}
856 
857 	if (debug) {
858 		sysfs_attr_init(&handles->devattr.attr);
859 		handles->devattr.attr.name = "handles";
860 		handles->devattr.attr.mode = S_IRUGO;
861 		handles->devattr.show = sony_nc_handles_show;
862 
863 		/* allow reading capabilities via sysfs */
864 		if (device_create_file(&pd->dev, &handles->devattr)) {
865 			kfree(handles);
866 			handles = NULL;
867 			return -1;
868 		}
869 	}
870 
871 	return 0;
872 }
873 
874 static int sony_nc_handles_cleanup(struct platform_device *pd)
875 {
876 	if (handles) {
877 		if (debug)
878 			device_remove_file(&pd->dev, &handles->devattr);
879 		kfree(handles);
880 		handles = NULL;
881 	}
882 	return 0;
883 }
884 
885 static int sony_find_snc_handle(int handle)
886 {
887 	int i;
888 
889 	/* not initialized yet, return early */
890 	if (!handles || !handle)
891 		return -EINVAL;
892 
893 	for (i = 0; i < 0x10; i++) {
894 		if (handles->cap[i] == handle) {
895 			dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
896 					handle, i);
897 			return i;
898 		}
899 	}
900 	dprintk("handle 0x%.4x not found\n", handle);
901 	return -EINVAL;
902 }
903 
904 static int sony_call_snc_handle(int handle, int argument, int *result)
905 {
906 	int arg, ret = 0;
907 	int offset = sony_find_snc_handle(handle);
908 
909 	if (offset < 0)
910 		return offset;
911 
912 	arg = offset | argument;
913 	ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
914 	dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
915 	return ret;
916 }
917 
918 /*
919  * sony_nc_values input/output validate functions
920  */
921 
922 /* brightness_default_validate:
923  *
924  * manipulate input output values to keep consistency with the
925  * backlight framework for which brightness values are 0-based.
926  */
927 static int brightness_default_validate(const int direction, const int value)
928 {
929 	switch (direction) {
930 		case SNC_VALIDATE_OUT:
931 			return value - 1;
932 		case SNC_VALIDATE_IN:
933 			if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
934 				return value + 1;
935 	}
936 	return -EINVAL;
937 }
938 
939 /* boolean_validate:
940  *
941  * on input validate boolean values 0/1, on output just pass the
942  * received value.
943  */
944 static int boolean_validate(const int direction, const int value)
945 {
946 	if (direction == SNC_VALIDATE_IN) {
947 		if (value != 0 && value != 1)
948 			return -EINVAL;
949 	}
950 	return value;
951 }
952 
953 /*
954  * Sysfs show/store common to all sony_nc_values
955  */
956 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
957 			      char *buffer)
958 {
959 	int value, ret = 0;
960 	struct sony_nc_value *item =
961 	    container_of(attr, struct sony_nc_value, devattr);
962 
963 	if (!*item->acpiget)
964 		return -EIO;
965 
966 	ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
967 				&value);
968 	if (ret < 0)
969 		return -EIO;
970 
971 	if (item->validate)
972 		value = item->validate(SNC_VALIDATE_OUT, value);
973 
974 	return snprintf(buffer, PAGE_SIZE, "%d\n", value);
975 }
976 
977 static ssize_t sony_nc_sysfs_store(struct device *dev,
978 			       struct device_attribute *attr,
979 			       const char *buffer, size_t count)
980 {
981 	int value;
982 	int ret = 0;
983 	struct sony_nc_value *item =
984 	    container_of(attr, struct sony_nc_value, devattr);
985 
986 	if (!item->acpiset)
987 		return -EIO;
988 
989 	if (count > 31)
990 		return -EINVAL;
991 
992 	if (kstrtoint(buffer, 10, &value))
993 		return -EINVAL;
994 
995 	if (item->validate)
996 		value = item->validate(SNC_VALIDATE_IN, value);
997 
998 	if (value < 0)
999 		return value;
1000 
1001 	ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1002 			       &value, NULL);
1003 	if (ret < 0)
1004 		return -EIO;
1005 
1006 	item->value = value;
1007 	item->valid = 1;
1008 	return count;
1009 }
1010 
1011 
1012 /*
1013  * Backlight device
1014  */
1015 struct sony_backlight_props {
1016 	struct backlight_device *dev;
1017 	int			handle;
1018 	int			cmd_base;
1019 	u8			offset;
1020 	u8			maxlvl;
1021 };
1022 static struct sony_backlight_props sony_bl_props;
1023 
1024 static int sony_backlight_update_status(struct backlight_device *bd)
1025 {
1026 	int arg = bd->props.brightness + 1;
1027 	return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1028 }
1029 
1030 static int sony_backlight_get_brightness(struct backlight_device *bd)
1031 {
1032 	int value;
1033 
1034 	if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1035 		return 0;
1036 	/* brightness levels are 1-based, while backlight ones are 0-based */
1037 	return value - 1;
1038 }
1039 
1040 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1041 {
1042 	int result;
1043 	struct sony_backlight_props *sdev =
1044 		(struct sony_backlight_props *)bl_get_data(bd);
1045 
1046 	sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1047 
1048 	return (result & 0xff) - sdev->offset;
1049 }
1050 
1051 static int sony_nc_update_status_ng(struct backlight_device *bd)
1052 {
1053 	int value, result;
1054 	struct sony_backlight_props *sdev =
1055 		(struct sony_backlight_props *)bl_get_data(bd);
1056 
1057 	value = bd->props.brightness + sdev->offset;
1058 	if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1059 				&result))
1060 		return -EIO;
1061 
1062 	return value;
1063 }
1064 
1065 static const struct backlight_ops sony_backlight_ops = {
1066 	.options = BL_CORE_SUSPENDRESUME,
1067 	.update_status = sony_backlight_update_status,
1068 	.get_brightness = sony_backlight_get_brightness,
1069 };
1070 static const struct backlight_ops sony_backlight_ng_ops = {
1071 	.options = BL_CORE_SUSPENDRESUME,
1072 	.update_status = sony_nc_update_status_ng,
1073 	.get_brightness = sony_nc_get_brightness_ng,
1074 };
1075 
1076 /*
1077  * New SNC-only Vaios event mapping to driver known keys
1078  */
1079 struct sony_nc_event {
1080 	u8	data;
1081 	u8	event;
1082 };
1083 
1084 static struct sony_nc_event sony_100_events[] = {
1085 	{ 0x90, SONYPI_EVENT_PKEY_P1 },
1086 	{ 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1087 	{ 0x91, SONYPI_EVENT_PKEY_P2 },
1088 	{ 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1089 	{ 0x81, SONYPI_EVENT_FNKEY_F1 },
1090 	{ 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1091 	{ 0x82, SONYPI_EVENT_FNKEY_F2 },
1092 	{ 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1093 	{ 0x83, SONYPI_EVENT_FNKEY_F3 },
1094 	{ 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1095 	{ 0x84, SONYPI_EVENT_FNKEY_F4 },
1096 	{ 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1097 	{ 0x85, SONYPI_EVENT_FNKEY_F5 },
1098 	{ 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1099 	{ 0x86, SONYPI_EVENT_FNKEY_F6 },
1100 	{ 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1101 	{ 0x87, SONYPI_EVENT_FNKEY_F7 },
1102 	{ 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1103 	{ 0x88, SONYPI_EVENT_FNKEY_F8 },
1104 	{ 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1105 	{ 0x89, SONYPI_EVENT_FNKEY_F9 },
1106 	{ 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1107 	{ 0x8A, SONYPI_EVENT_FNKEY_F10 },
1108 	{ 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1109 	{ 0x8B, SONYPI_EVENT_FNKEY_F11 },
1110 	{ 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1111 	{ 0x8C, SONYPI_EVENT_FNKEY_F12 },
1112 	{ 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1113 	{ 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1114 	{ 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1115 	{ 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1116 	{ 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117 	{ 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1118 	{ 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119 	{ 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1120 	{ 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1121 	{ 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1122 	{ 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1123 	{ 0xa6, SONYPI_EVENT_HELP_PRESSED },
1124 	{ 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1125 	{ 0xa8, SONYPI_EVENT_FNKEY_1 },
1126 	{ 0x28, 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 	int ret;
1194 
1195 	dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1196 
1197 	if (event >= 0x90) {
1198 		unsigned int result = 0;
1199 		unsigned int arg = 0;
1200 		unsigned int handle = 0;
1201 		unsigned int offset = event - 0x90;
1202 
1203 		if (offset >= ARRAY_SIZE(handles->cap)) {
1204 			pr_err("Event 0x%x outside of capabilities list\n",
1205 					event);
1206 			return;
1207 		}
1208 		handle = handles->cap[offset];
1209 
1210 		/* list of handles known for generating events */
1211 		switch (handle) {
1212 		/* hotkey event */
1213 		case 0x0100:
1214 		case 0x0127:
1215 			ev_type = HOTKEY;
1216 			ret = sony_nc_hotkeys_decode(event, handle);
1217 
1218 			if (ret > 0) {
1219 				sony_laptop_report_input_event(ret);
1220 				real_ev = ret;
1221 			}
1222 
1223 			break;
1224 
1225 		/* wlan switch */
1226 		case 0x0124:
1227 		case 0x0135:
1228 			/* events on this handle are reported when the
1229 			 * switch changes position or for battery
1230 			 * events. We'll notify both of them but only
1231 			 * update the rfkill device status when the
1232 			 * switch is moved.
1233 			 */
1234 			ev_type = KILLSWITCH;
1235 			sony_call_snc_handle(handle, 0x0100, &result);
1236 			real_ev = result & 0x03;
1237 
1238 			/* hw switch event */
1239 			if (real_ev == 1)
1240 				sony_nc_rfkill_update();
1241 
1242 			break;
1243 
1244 		case 0x0128:
1245 		case 0x0146:
1246 			/* Hybrid GFX switching */
1247 			sony_call_snc_handle(handle, 0x0000, &result);
1248 			dprintk("GFX switch event received (reason: %s)\n",
1249 					(result == 0x1) ? "switch change" :
1250 					(result == 0x2) ? "output switch" :
1251 					(result == 0x3) ? "output switch" :
1252 					"");
1253 
1254 			ev_type = GFX_SWITCH;
1255 			real_ev = __sony_nc_gfx_switch_status_get();
1256 			break;
1257 
1258 		case 0x015B:
1259 			/* Hybrid GFX switching SVS151290S */
1260 			ev_type = GFX_SWITCH;
1261 			real_ev = __sony_nc_gfx_switch_status_get();
1262 			break;
1263 		default:
1264 			dprintk("Unknown event 0x%x for handle 0x%x\n",
1265 					event, handle);
1266 			break;
1267 		}
1268 
1269 		/* clear the event (and the event reason when present) */
1270 		arg = 1 << offset;
1271 		sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1272 
1273 	} else {
1274 		/* old style event */
1275 		ev_type = HOTKEY;
1276 		sony_laptop_report_input_event(real_ev);
1277 	}
1278 	acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1279 			dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1280 }
1281 
1282 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1283 				      void *context, void **return_value)
1284 {
1285 	struct acpi_device_info *info;
1286 
1287 	if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1288 		pr_warn("method: name: %4.4s, args %X\n",
1289 			(char *)&info->name, info->param_count);
1290 
1291 		kfree(info);
1292 	}
1293 
1294 	return AE_OK;
1295 }
1296 
1297 /*
1298  * ACPI device
1299  */
1300 static void sony_nc_function_setup(struct acpi_device *device,
1301 		struct platform_device *pf_device)
1302 {
1303 	unsigned int i, result, bitmask, arg;
1304 
1305 	if (!handles)
1306 		return;
1307 
1308 	/* setup found handles here */
1309 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1310 		unsigned int handle = handles->cap[i];
1311 
1312 		if (!handle)
1313 			continue;
1314 
1315 		dprintk("setting up handle 0x%.4x\n", handle);
1316 
1317 		switch (handle) {
1318 		case 0x0100:
1319 		case 0x0101:
1320 		case 0x0127:
1321 			/* setup hotkeys */
1322 			sony_call_snc_handle(handle, 0, &result);
1323 			break;
1324 		case 0x0102:
1325 			/* setup hotkeys */
1326 			sony_call_snc_handle(handle, 0x100, &result);
1327 			break;
1328 		case 0x0105:
1329 		case 0x0148:
1330 			/* touchpad enable/disable */
1331 			result = sony_nc_touchpad_setup(pf_device, handle);
1332 			if (result)
1333 				pr_err("couldn't set up touchpad control function (%d)\n",
1334 						result);
1335 			break;
1336 		case 0x0115:
1337 		case 0x0136:
1338 		case 0x013f:
1339 			result = sony_nc_battery_care_setup(pf_device, handle);
1340 			if (result)
1341 				pr_err("couldn't set up battery care function (%d)\n",
1342 						result);
1343 			break;
1344 		case 0x0119:
1345 		case 0x015D:
1346 			result = sony_nc_lid_resume_setup(pf_device, handle);
1347 			if (result)
1348 				pr_err("couldn't set up lid resume function (%d)\n",
1349 						result);
1350 			break;
1351 		case 0x0122:
1352 			result = sony_nc_thermal_setup(pf_device);
1353 			if (result)
1354 				pr_err("couldn't set up thermal profile function (%d)\n",
1355 						result);
1356 			break;
1357 		case 0x0128:
1358 		case 0x0146:
1359 		case 0x015B:
1360 			result = sony_nc_gfx_switch_setup(pf_device, handle);
1361 			if (result)
1362 				pr_err("couldn't set up GFX Switch status (%d)\n",
1363 						result);
1364 			break;
1365 		case 0x0131:
1366 			result = sony_nc_highspeed_charging_setup(pf_device);
1367 			if (result)
1368 				pr_err("couldn't set up high speed charging function (%d)\n",
1369 				       result);
1370 			break;
1371 		case 0x0124:
1372 		case 0x0135:
1373 			result = sony_nc_rfkill_setup(device, handle);
1374 			if (result)
1375 				pr_err("couldn't set up rfkill support (%d)\n",
1376 						result);
1377 			break;
1378 		case 0x0137:
1379 		case 0x0143:
1380 		case 0x014b:
1381 		case 0x014c:
1382 		case 0x0153:
1383 		case 0x0163:
1384 			result = sony_nc_kbd_backlight_setup(pf_device, handle);
1385 			if (result)
1386 				pr_err("couldn't set up keyboard backlight function (%d)\n",
1387 						result);
1388 			break;
1389 		case 0x0121:
1390 			result = sony_nc_lowbatt_setup(pf_device);
1391 			if (result)
1392 				pr_err("couldn't set up low battery function (%d)\n",
1393 				       result);
1394 			break;
1395 		case 0x0149:
1396 			result = sony_nc_fanspeed_setup(pf_device);
1397 			if (result)
1398 				pr_err("couldn't set up fan speed function (%d)\n",
1399 				       result);
1400 			break;
1401 		case 0x0155:
1402 			result = sony_nc_usb_charge_setup(pf_device);
1403 			if (result)
1404 				pr_err("couldn't set up USB charge support (%d)\n",
1405 						result);
1406 			break;
1407 		case 0x011D:
1408 			result = sony_nc_panelid_setup(pf_device);
1409 			if (result)
1410 				pr_err("couldn't set up panel ID function (%d)\n",
1411 				       result);
1412 			break;
1413 		case 0x0168:
1414 			result = sony_nc_smart_conn_setup(pf_device);
1415 			if (result)
1416 				pr_err("couldn't set up smart connect support (%d)\n",
1417 						result);
1418 			break;
1419 		default:
1420 			continue;
1421 		}
1422 	}
1423 
1424 	/* Enable all events */
1425 	arg = 0x10;
1426 	if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1427 		sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1428 				&result);
1429 }
1430 
1431 static void sony_nc_function_cleanup(struct platform_device *pd)
1432 {
1433 	unsigned int i, result, bitmask, handle;
1434 
1435 	if (!handles)
1436 		return;
1437 
1438 	/* get enabled events and disable them */
1439 	sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1440 	sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1441 
1442 	/* cleanup handles here */
1443 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1444 
1445 		handle = handles->cap[i];
1446 
1447 		if (!handle)
1448 			continue;
1449 
1450 		switch (handle) {
1451 		case 0x0105:
1452 		case 0x0148:
1453 			sony_nc_touchpad_cleanup(pd);
1454 			break;
1455 		case 0x0115:
1456 		case 0x0136:
1457 		case 0x013f:
1458 			sony_nc_battery_care_cleanup(pd);
1459 			break;
1460 		case 0x0119:
1461 		case 0x015D:
1462 			sony_nc_lid_resume_cleanup(pd);
1463 			break;
1464 		case 0x0122:
1465 			sony_nc_thermal_cleanup(pd);
1466 			break;
1467 		case 0x0128:
1468 		case 0x0146:
1469 		case 0x015B:
1470 			sony_nc_gfx_switch_cleanup(pd);
1471 			break;
1472 		case 0x0131:
1473 			sony_nc_highspeed_charging_cleanup(pd);
1474 			break;
1475 		case 0x0124:
1476 		case 0x0135:
1477 			sony_nc_rfkill_cleanup();
1478 			break;
1479 		case 0x0137:
1480 		case 0x0143:
1481 		case 0x014b:
1482 		case 0x014c:
1483 		case 0x0153:
1484 		case 0x0163:
1485 			sony_nc_kbd_backlight_cleanup(pd, handle);
1486 			break;
1487 		case 0x0121:
1488 			sony_nc_lowbatt_cleanup(pd);
1489 			break;
1490 		case 0x0149:
1491 			sony_nc_fanspeed_cleanup(pd);
1492 			break;
1493 		case 0x0155:
1494 			sony_nc_usb_charge_cleanup(pd);
1495 			break;
1496 		case 0x011D:
1497 			sony_nc_panelid_cleanup(pd);
1498 			break;
1499 		case 0x0168:
1500 			sony_nc_smart_conn_cleanup(pd);
1501 			break;
1502 		default:
1503 			continue;
1504 		}
1505 	}
1506 
1507 	/* finally cleanup the handles list */
1508 	sony_nc_handles_cleanup(pd);
1509 }
1510 
1511 #ifdef CONFIG_PM_SLEEP
1512 static void sony_nc_function_resume(void)
1513 {
1514 	unsigned int i, result, bitmask, arg;
1515 
1516 	dprintk("Resuming SNC device\n");
1517 
1518 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1519 		unsigned int handle = handles->cap[i];
1520 
1521 		if (!handle)
1522 			continue;
1523 
1524 		switch (handle) {
1525 		case 0x0100:
1526 		case 0x0101:
1527 		case 0x0127:
1528 			/* re-enable hotkeys */
1529 			sony_call_snc_handle(handle, 0, &result);
1530 			break;
1531 		case 0x0102:
1532 			/* re-enable hotkeys */
1533 			sony_call_snc_handle(handle, 0x100, &result);
1534 			break;
1535 		case 0x0122:
1536 			sony_nc_thermal_resume();
1537 			break;
1538 		case 0x0124:
1539 		case 0x0135:
1540 			sony_nc_rfkill_update();
1541 			break;
1542 		default:
1543 			continue;
1544 		}
1545 	}
1546 
1547 	/* Enable all events */
1548 	arg = 0x10;
1549 	if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1550 		sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1551 				&result);
1552 }
1553 
1554 static int sony_nc_resume(struct device *dev)
1555 {
1556 	struct sony_nc_value *item;
1557 
1558 	for (item = sony_nc_values; item->name; item++) {
1559 		int ret;
1560 
1561 		if (!item->valid)
1562 			continue;
1563 		ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1564 				       &item->value, NULL);
1565 		if (ret < 0) {
1566 			pr_err("%s: %d\n", __func__, ret);
1567 			break;
1568 		}
1569 	}
1570 
1571 	if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1572 		int arg = 1;
1573 		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1574 			dprintk("ECON Method failed\n");
1575 	}
1576 
1577 	if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1578 		sony_nc_function_resume();
1579 
1580 	return 0;
1581 }
1582 #endif
1583 
1584 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1585 
1586 static void sony_nc_rfkill_cleanup(void)
1587 {
1588 	int i;
1589 
1590 	for (i = 0; i < N_SONY_RFKILL; i++) {
1591 		if (sony_rfkill_devices[i]) {
1592 			rfkill_unregister(sony_rfkill_devices[i]);
1593 			rfkill_destroy(sony_rfkill_devices[i]);
1594 		}
1595 	}
1596 }
1597 
1598 static int sony_nc_rfkill_set(void *data, bool blocked)
1599 {
1600 	int result;
1601 	int argument = sony_rfkill_address[(long) data] + 0x100;
1602 
1603 	if (!blocked)
1604 		argument |= 0x070000;
1605 
1606 	return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1607 }
1608 
1609 static const struct rfkill_ops sony_rfkill_ops = {
1610 	.set_block = sony_nc_rfkill_set,
1611 };
1612 
1613 static int sony_nc_setup_rfkill(struct acpi_device *device,
1614 				enum sony_nc_rfkill nc_type)
1615 {
1616 	int err;
1617 	struct rfkill *rfk;
1618 	enum rfkill_type type;
1619 	const char *name;
1620 	int result;
1621 	bool hwblock, swblock;
1622 
1623 	switch (nc_type) {
1624 	case SONY_WIFI:
1625 		type = RFKILL_TYPE_WLAN;
1626 		name = "sony-wifi";
1627 		break;
1628 	case SONY_BLUETOOTH:
1629 		type = RFKILL_TYPE_BLUETOOTH;
1630 		name = "sony-bluetooth";
1631 		break;
1632 	case SONY_WWAN:
1633 		type = RFKILL_TYPE_WWAN;
1634 		name = "sony-wwan";
1635 		break;
1636 	case SONY_WIMAX:
1637 		type = RFKILL_TYPE_WIMAX;
1638 		name = "sony-wimax";
1639 		break;
1640 	default:
1641 		return -EINVAL;
1642 	}
1643 
1644 	rfk = rfkill_alloc(name, &device->dev, type,
1645 			   &sony_rfkill_ops, (void *)nc_type);
1646 	if (!rfk)
1647 		return -ENOMEM;
1648 
1649 	err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1650 	if (err < 0) {
1651 		rfkill_destroy(rfk);
1652 		return err;
1653 	}
1654 	hwblock = !(result & 0x1);
1655 
1656 	err = sony_call_snc_handle(sony_rfkill_handle,
1657 				   sony_rfkill_address[nc_type],
1658 				   &result);
1659 	if (err < 0) {
1660 		rfkill_destroy(rfk);
1661 		return err;
1662 	}
1663 	swblock = !(result & 0x2);
1664 
1665 	rfkill_init_sw_state(rfk, swblock);
1666 	rfkill_set_hw_state(rfk, hwblock);
1667 
1668 	err = rfkill_register(rfk);
1669 	if (err) {
1670 		rfkill_destroy(rfk);
1671 		return err;
1672 	}
1673 	sony_rfkill_devices[nc_type] = rfk;
1674 	return err;
1675 }
1676 
1677 static void sony_nc_rfkill_update(void)
1678 {
1679 	enum sony_nc_rfkill i;
1680 	int result;
1681 	bool hwblock;
1682 
1683 	sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1684 	hwblock = !(result & 0x1);
1685 
1686 	for (i = 0; i < N_SONY_RFKILL; i++) {
1687 		int argument = sony_rfkill_address[i];
1688 
1689 		if (!sony_rfkill_devices[i])
1690 			continue;
1691 
1692 		if (hwblock) {
1693 			if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1694 				/* we already know we're blocked */
1695 			}
1696 			continue;
1697 		}
1698 
1699 		sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1700 		rfkill_set_states(sony_rfkill_devices[i],
1701 				  !(result & 0x2), false);
1702 	}
1703 }
1704 
1705 static int sony_nc_rfkill_setup(struct acpi_device *device,
1706 		unsigned int handle)
1707 {
1708 	u64 offset;
1709 	int i;
1710 	unsigned char buffer[32] = { 0 };
1711 
1712 	offset = sony_find_snc_handle(handle);
1713 	sony_rfkill_handle = handle;
1714 
1715 	i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1716 			32);
1717 	if (i < 0)
1718 		return i;
1719 
1720 	/* The buffer is filled with magic numbers describing the devices
1721 	 * available, 0xff terminates the enumeration.
1722 	 * Known codes:
1723 	 *	0x00 WLAN
1724 	 *	0x10 BLUETOOTH
1725 	 *	0x20 WWAN GPRS-EDGE
1726 	 *	0x21 WWAN HSDPA
1727 	 *	0x22 WWAN EV-DO
1728 	 *	0x23 WWAN GPS
1729 	 *	0x25 Gobi WWAN no GPS
1730 	 *	0x26 Gobi WWAN + GPS
1731 	 *	0x28 Gobi WWAN no GPS
1732 	 *	0x29 Gobi WWAN + GPS
1733 	 *	0x30 WIMAX
1734 	 *	0x50 Gobi WWAN no GPS
1735 	 *	0x51 Gobi WWAN + GPS
1736 	 *	0x70 no SIM card slot
1737 	 *	0x71 SIM card slot
1738 	 */
1739 	for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1740 
1741 		if (buffer[i] == 0xff)
1742 			break;
1743 
1744 		dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1745 
1746 		if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1747 			sony_nc_setup_rfkill(device, SONY_WIFI);
1748 
1749 		if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1750 			sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1751 
1752 		if (((0xf0 & buffer[i]) == 0x20 ||
1753 					(0xf0 & buffer[i]) == 0x50) &&
1754 				!sony_rfkill_devices[SONY_WWAN])
1755 			sony_nc_setup_rfkill(device, SONY_WWAN);
1756 
1757 		if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1758 			sony_nc_setup_rfkill(device, SONY_WIMAX);
1759 	}
1760 	return 0;
1761 }
1762 
1763 /* Keyboard backlight feature */
1764 struct kbd_backlight {
1765 	unsigned int handle;
1766 	unsigned int base;
1767 	unsigned int mode;
1768 	unsigned int timeout;
1769 	unsigned int has_timeout;
1770 	struct device_attribute mode_attr;
1771 	struct device_attribute timeout_attr;
1772 };
1773 
1774 static struct kbd_backlight *kbdbl_ctl;
1775 
1776 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1777 {
1778 	int result;
1779 
1780 	if (value > 2)
1781 		return -EINVAL;
1782 
1783 	if (sony_call_snc_handle(kbdbl_ctl->handle,
1784 				(value << 0x10) | (kbdbl_ctl->base), &result))
1785 		return -EIO;
1786 
1787 	/* Try to turn the light on/off immediately */
1788 	if (value != 1)
1789 		sony_call_snc_handle(kbdbl_ctl->handle,
1790 				(value << 0x0f) | (kbdbl_ctl->base + 0x100),
1791 				&result);
1792 
1793 	kbdbl_ctl->mode = value;
1794 
1795 	return 0;
1796 }
1797 
1798 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1799 		struct device_attribute *attr,
1800 		const char *buffer, size_t count)
1801 {
1802 	int ret = 0;
1803 	unsigned long value;
1804 
1805 	if (count > 31)
1806 		return -EINVAL;
1807 
1808 	if (kstrtoul(buffer, 10, &value))
1809 		return -EINVAL;
1810 
1811 	ret = __sony_nc_kbd_backlight_mode_set(value);
1812 	if (ret < 0)
1813 		return ret;
1814 
1815 	return count;
1816 }
1817 
1818 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1819 		struct device_attribute *attr, char *buffer)
1820 {
1821 	ssize_t count = 0;
1822 	count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1823 	return count;
1824 }
1825 
1826 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1827 {
1828 	int result;
1829 
1830 	if (value > 3)
1831 		return -EINVAL;
1832 
1833 	if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1834 				(kbdbl_ctl->base + 0x200), &result))
1835 		return -EIO;
1836 
1837 	kbdbl_ctl->timeout = value;
1838 
1839 	return 0;
1840 }
1841 
1842 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1843 		struct device_attribute *attr,
1844 		const char *buffer, size_t count)
1845 {
1846 	int ret = 0;
1847 	unsigned long value;
1848 
1849 	if (count > 31)
1850 		return -EINVAL;
1851 
1852 	if (kstrtoul(buffer, 10, &value))
1853 		return -EINVAL;
1854 
1855 	ret = __sony_nc_kbd_backlight_timeout_set(value);
1856 	if (ret < 0)
1857 		return ret;
1858 
1859 	return count;
1860 }
1861 
1862 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1863 		struct device_attribute *attr, char *buffer)
1864 {
1865 	ssize_t count = 0;
1866 	count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1867 	return count;
1868 }
1869 
1870 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1871 		unsigned int handle)
1872 {
1873 	int result;
1874 	int probe_base = 0;
1875 	int ctl_base = 0;
1876 	int ret = 0;
1877 
1878 	if (kbdbl_ctl) {
1879 		pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1880 				handle, kbdbl_ctl->handle);
1881 		return -EBUSY;
1882 	}
1883 
1884 	/* verify the kbd backlight presence, some of these handles are not used
1885 	 * for keyboard backlight only
1886 	 */
1887 	switch (handle) {
1888 	case 0x0153:
1889 		probe_base = 0x0;
1890 		ctl_base = 0x0;
1891 		break;
1892 	case 0x0137:
1893 		probe_base = 0x0B00;
1894 		ctl_base = 0x0C00;
1895 		break;
1896 	default:
1897 		probe_base = 0x0100;
1898 		ctl_base = 0x4000;
1899 		break;
1900 	}
1901 
1902 	ret = sony_call_snc_handle(handle, probe_base, &result);
1903 	if (ret)
1904 		return ret;
1905 
1906 	if ((handle == 0x0137 && !(result & 0x02)) ||
1907 			!(result & 0x01)) {
1908 		dprintk("no backlight keyboard found\n");
1909 		return 0;
1910 	}
1911 
1912 	kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1913 	if (!kbdbl_ctl)
1914 		return -ENOMEM;
1915 
1916 	kbdbl_ctl->mode = kbd_backlight;
1917 	kbdbl_ctl->timeout = kbd_backlight_timeout;
1918 	kbdbl_ctl->handle = handle;
1919 	kbdbl_ctl->base = ctl_base;
1920 	/* Some models do not allow timeout control */
1921 	kbdbl_ctl->has_timeout = handle != 0x0153;
1922 
1923 	sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1924 	kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1925 	kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1926 	kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1927 	kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1928 
1929 	ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1930 	if (ret)
1931 		goto outkzalloc;
1932 
1933 	__sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1934 
1935 	if (kbdbl_ctl->has_timeout) {
1936 		sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1937 		kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1938 		kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1939 		kbdbl_ctl->timeout_attr.show =
1940 			sony_nc_kbd_backlight_timeout_show;
1941 		kbdbl_ctl->timeout_attr.store =
1942 			sony_nc_kbd_backlight_timeout_store;
1943 
1944 		ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1945 		if (ret)
1946 			goto outmode;
1947 
1948 		__sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1949 	}
1950 
1951 
1952 	return 0;
1953 
1954 outmode:
1955 	device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1956 outkzalloc:
1957 	kfree(kbdbl_ctl);
1958 	kbdbl_ctl = NULL;
1959 	return ret;
1960 }
1961 
1962 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1963 		unsigned int handle)
1964 {
1965 	if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1966 		device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1967 		if (kbdbl_ctl->has_timeout)
1968 			device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1969 		kfree(kbdbl_ctl);
1970 		kbdbl_ctl = NULL;
1971 	}
1972 }
1973 
1974 struct battery_care_control {
1975 	struct device_attribute attrs[2];
1976 	unsigned int handle;
1977 };
1978 static struct battery_care_control *bcare_ctl;
1979 
1980 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1981 		struct device_attribute *attr,
1982 		const char *buffer, size_t count)
1983 {
1984 	unsigned int result, cmd;
1985 	unsigned long value;
1986 
1987 	if (count > 31)
1988 		return -EINVAL;
1989 
1990 	if (kstrtoul(buffer, 10, &value))
1991 		return -EINVAL;
1992 
1993 	/*  limit values (2 bits):
1994 	 *  00 - none
1995 	 *  01 - 80%
1996 	 *  10 - 50%
1997 	 *  11 - 100%
1998 	 *
1999 	 *  bit 0: 0 disable BCL, 1 enable BCL
2000 	 *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
2001 	 *  bits 2,3: reserved
2002 	 *  bits 4,5: store the limit into the EC
2003 	 *  bits 6,7: store the limit into the battery
2004 	 */
2005 	cmd = 0;
2006 
2007 	if (value > 0) {
2008 		if (value <= 50)
2009 			cmd = 0x20;
2010 
2011 		else if (value <= 80)
2012 			cmd = 0x10;
2013 
2014 		else if (value <= 100)
2015 			cmd = 0x30;
2016 
2017 		else
2018 			return -EINVAL;
2019 
2020 		/*
2021 		 * handle 0x0115 should allow storing on battery too;
2022 		 * handle 0x0136 same as 0x0115 + health status;
2023 		 * handle 0x013f, same as 0x0136 but no storing on the battery
2024 		 */
2025 		if (bcare_ctl->handle != 0x013f)
2026 			cmd = cmd | (cmd << 2);
2027 
2028 		cmd = (cmd | 0x1) << 0x10;
2029 	}
2030 
2031 	if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2032 		return -EIO;
2033 
2034 	return count;
2035 }
2036 
2037 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2038 		struct device_attribute *attr, char *buffer)
2039 {
2040 	unsigned int result, status;
2041 
2042 	if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2043 		return -EIO;
2044 
2045 	status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2046 	switch (status) {
2047 	case 1:
2048 		status = 80;
2049 		break;
2050 	case 2:
2051 		status = 50;
2052 		break;
2053 	case 3:
2054 		status = 100;
2055 		break;
2056 	default:
2057 		status = 0;
2058 		break;
2059 	}
2060 
2061 	return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2062 }
2063 
2064 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2065 		struct device_attribute *attr, char *buffer)
2066 {
2067 	ssize_t count = 0;
2068 	unsigned int health;
2069 
2070 	if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2071 		return -EIO;
2072 
2073 	count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2074 
2075 	return count;
2076 }
2077 
2078 static int sony_nc_battery_care_setup(struct platform_device *pd,
2079 		unsigned int handle)
2080 {
2081 	int ret = 0;
2082 
2083 	bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2084 	if (!bcare_ctl)
2085 		return -ENOMEM;
2086 
2087 	bcare_ctl->handle = handle;
2088 
2089 	sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2090 	bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2091 	bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2092 	bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2093 	bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2094 
2095 	ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2096 	if (ret)
2097 		goto outkzalloc;
2098 
2099 	/* 0x0115 is for models with no health reporting capability */
2100 	if (handle == 0x0115)
2101 		return 0;
2102 
2103 	sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2104 	bcare_ctl->attrs[1].attr.name = "battery_care_health";
2105 	bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2106 	bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2107 
2108 	ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2109 	if (ret)
2110 		goto outlimiter;
2111 
2112 	return 0;
2113 
2114 outlimiter:
2115 	device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2116 
2117 outkzalloc:
2118 	kfree(bcare_ctl);
2119 	bcare_ctl = NULL;
2120 
2121 	return ret;
2122 }
2123 
2124 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2125 {
2126 	if (bcare_ctl) {
2127 		device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2128 		if (bcare_ctl->handle != 0x0115)
2129 			device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2130 
2131 		kfree(bcare_ctl);
2132 		bcare_ctl = NULL;
2133 	}
2134 }
2135 
2136 struct snc_thermal_ctrl {
2137 	unsigned int mode;
2138 	unsigned int profiles;
2139 	struct device_attribute mode_attr;
2140 	struct device_attribute profiles_attr;
2141 };
2142 static struct snc_thermal_ctrl *th_handle;
2143 
2144 #define THM_PROFILE_MAX 3
2145 static const char * const snc_thermal_profiles[] = {
2146 	"balanced",
2147 	"silent",
2148 	"performance"
2149 };
2150 
2151 static int sony_nc_thermal_mode_set(unsigned short mode)
2152 {
2153 	unsigned int result;
2154 
2155 	/* the thermal profile seems to be a two bit bitmask:
2156 	 * lsb -> silent
2157 	 * msb -> performance
2158 	 * no bit set is the normal operation and is always valid
2159 	 * Some vaio models only have "balanced" and "performance"
2160 	 */
2161 	if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2162 		return -EINVAL;
2163 
2164 	if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2165 		return -EIO;
2166 
2167 	th_handle->mode = mode;
2168 
2169 	return 0;
2170 }
2171 
2172 static int sony_nc_thermal_mode_get(void)
2173 {
2174 	unsigned int result;
2175 
2176 	if (sony_call_snc_handle(0x0122, 0x0100, &result))
2177 		return -EIO;
2178 
2179 	return result & 0xff;
2180 }
2181 
2182 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2183 		struct device_attribute *attr, char *buffer)
2184 {
2185 	short cnt;
2186 	size_t idx = 0;
2187 
2188 	for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2189 		if (!cnt || (th_handle->profiles & cnt))
2190 			idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2191 					snc_thermal_profiles[cnt]);
2192 	}
2193 	idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2194 
2195 	return idx;
2196 }
2197 
2198 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2199 		struct device_attribute *attr,
2200 		const char *buffer, size_t count)
2201 {
2202 	unsigned short cmd;
2203 	size_t len = count;
2204 
2205 	if (count == 0)
2206 		return -EINVAL;
2207 
2208 	/* skip the newline if present */
2209 	if (buffer[len - 1] == '\n')
2210 		len--;
2211 
2212 	for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2213 		if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2214 			break;
2215 
2216 	if (sony_nc_thermal_mode_set(cmd))
2217 		return -EIO;
2218 
2219 	return count;
2220 }
2221 
2222 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2223 		struct device_attribute *attr, char *buffer)
2224 {
2225 	ssize_t count = 0;
2226 	int mode = sony_nc_thermal_mode_get();
2227 
2228 	if (mode < 0)
2229 		return mode;
2230 
2231 	count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2232 
2233 	return count;
2234 }
2235 
2236 static int sony_nc_thermal_setup(struct platform_device *pd)
2237 {
2238 	int ret = 0;
2239 	th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2240 	if (!th_handle)
2241 		return -ENOMEM;
2242 
2243 	ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2244 	if (ret) {
2245 		pr_warn("couldn't to read the thermal profiles\n");
2246 		goto outkzalloc;
2247 	}
2248 
2249 	ret = sony_nc_thermal_mode_get();
2250 	if (ret < 0) {
2251 		pr_warn("couldn't to read the current thermal profile");
2252 		goto outkzalloc;
2253 	}
2254 	th_handle->mode = ret;
2255 
2256 	sysfs_attr_init(&th_handle->profiles_attr.attr);
2257 	th_handle->profiles_attr.attr.name = "thermal_profiles";
2258 	th_handle->profiles_attr.attr.mode = S_IRUGO;
2259 	th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2260 
2261 	sysfs_attr_init(&th_handle->mode_attr.attr);
2262 	th_handle->mode_attr.attr.name = "thermal_control";
2263 	th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2264 	th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2265 	th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2266 
2267 	ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2268 	if (ret)
2269 		goto outkzalloc;
2270 
2271 	ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2272 	if (ret)
2273 		goto outprofiles;
2274 
2275 	return 0;
2276 
2277 outprofiles:
2278 	device_remove_file(&pd->dev, &th_handle->profiles_attr);
2279 outkzalloc:
2280 	kfree(th_handle);
2281 	th_handle = NULL;
2282 	return ret;
2283 }
2284 
2285 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2286 {
2287 	if (th_handle) {
2288 		device_remove_file(&pd->dev, &th_handle->profiles_attr);
2289 		device_remove_file(&pd->dev, &th_handle->mode_attr);
2290 		kfree(th_handle);
2291 		th_handle = NULL;
2292 	}
2293 }
2294 
2295 #ifdef CONFIG_PM_SLEEP
2296 static void sony_nc_thermal_resume(void)
2297 {
2298 	unsigned int status = sony_nc_thermal_mode_get();
2299 
2300 	if (status != th_handle->mode)
2301 		sony_nc_thermal_mode_set(th_handle->mode);
2302 }
2303 #endif
2304 
2305 /* resume on LID open */
2306 #define LID_RESUME_S5	0
2307 #define LID_RESUME_S4	1
2308 #define LID_RESUME_S3	2
2309 #define LID_RESUME_MAX	3
2310 struct snc_lid_resume_control {
2311 	struct device_attribute attrs[LID_RESUME_MAX];
2312 	unsigned int status;
2313 	int handle;
2314 };
2315 static struct snc_lid_resume_control *lid_ctl;
2316 
2317 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2318 					struct device_attribute *attr,
2319 					const char *buffer, size_t count)
2320 {
2321 	unsigned int result;
2322 	unsigned long value;
2323 	unsigned int pos = LID_RESUME_S5;
2324 	if (count > 31)
2325 		return -EINVAL;
2326 
2327 	if (kstrtoul(buffer, 10, &value) || value > 1)
2328 		return -EINVAL;
2329 
2330 	/* the value we have to write to SNC is a bitmask:
2331 	 * +--------------+
2332 	 * | S3 | S4 | S5 |
2333 	 * +--------------+
2334 	 *   2    1    0
2335 	 */
2336 	while (pos < LID_RESUME_MAX) {
2337 		if (&lid_ctl->attrs[pos].attr == &attr->attr)
2338 			break;
2339 		pos++;
2340 	}
2341 	if (pos == LID_RESUME_MAX)
2342 		return -EINVAL;
2343 
2344 	if (value)
2345 		value = lid_ctl->status | (1 << pos);
2346 	else
2347 		value = lid_ctl->status & ~(1 << pos);
2348 
2349 	if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2350 				&result))
2351 		return -EIO;
2352 
2353 	lid_ctl->status = value;
2354 
2355 	return count;
2356 }
2357 
2358 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2359 					struct device_attribute *attr,
2360 					char *buffer)
2361 {
2362 	unsigned int pos = LID_RESUME_S5;
2363 
2364 	while (pos < LID_RESUME_MAX) {
2365 		if (&lid_ctl->attrs[pos].attr == &attr->attr)
2366 			return snprintf(buffer, PAGE_SIZE, "%d\n",
2367 					(lid_ctl->status >> pos) & 0x01);
2368 		pos++;
2369 	}
2370 	return -EINVAL;
2371 }
2372 
2373 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2374 					unsigned int handle)
2375 {
2376 	unsigned int result;
2377 	int i;
2378 
2379 	if (sony_call_snc_handle(handle, 0x0000, &result))
2380 		return -EIO;
2381 
2382 	lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2383 	if (!lid_ctl)
2384 		return -ENOMEM;
2385 
2386 	lid_ctl->status = result & 0x7;
2387 	lid_ctl->handle = handle;
2388 
2389 	sysfs_attr_init(&lid_ctl->attrs[0].attr);
2390 	lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2391 	lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2392 	lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2393 	lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2394 
2395 	if (handle == 0x0119) {
2396 		sysfs_attr_init(&lid_ctl->attrs[1].attr);
2397 		lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2398 		lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2399 		lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2400 		lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2401 
2402 		sysfs_attr_init(&lid_ctl->attrs[2].attr);
2403 		lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2404 		lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2405 		lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2406 		lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2407 	}
2408 	for (i = 0; i < LID_RESUME_MAX &&
2409 			lid_ctl->attrs[i].attr.name; i++) {
2410 		result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2411 		if (result)
2412 			goto liderror;
2413 	}
2414 
2415 	return 0;
2416 
2417 liderror:
2418 	for (i--; i >= 0; i--)
2419 		device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2420 
2421 	kfree(lid_ctl);
2422 	lid_ctl = NULL;
2423 
2424 	return result;
2425 }
2426 
2427 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2428 {
2429 	int i;
2430 
2431 	if (lid_ctl) {
2432 		for (i = 0; i < LID_RESUME_MAX; i++) {
2433 			if (!lid_ctl->attrs[i].attr.name)
2434 				break;
2435 
2436 			device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2437 		}
2438 
2439 		kfree(lid_ctl);
2440 		lid_ctl = NULL;
2441 	}
2442 }
2443 
2444 /* GFX Switch position */
2445 enum gfx_switch {
2446 	SPEED,
2447 	STAMINA,
2448 	AUTO
2449 };
2450 struct snc_gfx_switch_control {
2451 	struct device_attribute attr;
2452 	unsigned int handle;
2453 };
2454 static struct snc_gfx_switch_control *gfxs_ctl;
2455 
2456 /* returns 0 for speed, 1 for stamina */
2457 static int __sony_nc_gfx_switch_status_get(void)
2458 {
2459 	unsigned int result;
2460 
2461 	if (sony_call_snc_handle(gfxs_ctl->handle,
2462 				gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2463 				&result))
2464 		return -EIO;
2465 
2466 	switch (gfxs_ctl->handle) {
2467 	case 0x0146:
2468 		/* 1: discrete GFX (speed)
2469 		 * 0: integrated GFX (stamina)
2470 		 */
2471 		return result & 0x1 ? SPEED : STAMINA;
2472 		break;
2473 	case 0x015B:
2474 		/* 0: discrete GFX (speed)
2475 		 * 1: integrated GFX (stamina)
2476 		 */
2477 		return result & 0x1 ? STAMINA : SPEED;
2478 		break;
2479 	case 0x0128:
2480 		/* it's a more elaborated bitmask, for now:
2481 		 * 2: integrated GFX (stamina)
2482 		 * 0: discrete GFX (speed)
2483 		 */
2484 		dprintk("GFX Status: 0x%x\n", result);
2485 		return result & 0x80 ? AUTO :
2486 			result & 0x02 ? STAMINA : SPEED;
2487 		break;
2488 	}
2489 	return -EINVAL;
2490 }
2491 
2492 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2493 				       struct device_attribute *attr,
2494 				       char *buffer)
2495 {
2496 	int pos = __sony_nc_gfx_switch_status_get();
2497 
2498 	if (pos < 0)
2499 		return pos;
2500 
2501 	return snprintf(buffer, PAGE_SIZE, "%s\n",
2502 					pos == SPEED ? "speed" :
2503 					pos == STAMINA ? "stamina" :
2504 					pos == AUTO ? "auto" : "unknown");
2505 }
2506 
2507 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2508 		unsigned int handle)
2509 {
2510 	unsigned int result;
2511 
2512 	gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2513 	if (!gfxs_ctl)
2514 		return -ENOMEM;
2515 
2516 	gfxs_ctl->handle = handle;
2517 
2518 	sysfs_attr_init(&gfxs_ctl->attr.attr);
2519 	gfxs_ctl->attr.attr.name = "gfx_switch_status";
2520 	gfxs_ctl->attr.attr.mode = S_IRUGO;
2521 	gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2522 
2523 	result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2524 	if (result)
2525 		goto gfxerror;
2526 
2527 	return 0;
2528 
2529 gfxerror:
2530 	kfree(gfxs_ctl);
2531 	gfxs_ctl = NULL;
2532 
2533 	return result;
2534 }
2535 
2536 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2537 {
2538 	if (gfxs_ctl) {
2539 		device_remove_file(&pd->dev, &gfxs_ctl->attr);
2540 
2541 		kfree(gfxs_ctl);
2542 		gfxs_ctl = NULL;
2543 	}
2544 }
2545 
2546 /* High speed charging function */
2547 static struct device_attribute *hsc_handle;
2548 
2549 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2550 		struct device_attribute *attr,
2551 		const char *buffer, size_t count)
2552 {
2553 	unsigned int result;
2554 	unsigned long value;
2555 
2556 	if (count > 31)
2557 		return -EINVAL;
2558 
2559 	if (kstrtoul(buffer, 10, &value) || value > 1)
2560 		return -EINVAL;
2561 
2562 	if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2563 		return -EIO;
2564 
2565 	return count;
2566 }
2567 
2568 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2569 		struct device_attribute *attr, char *buffer)
2570 {
2571 	unsigned int result;
2572 
2573 	if (sony_call_snc_handle(0x0131, 0x0100, &result))
2574 		return -EIO;
2575 
2576 	return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2577 }
2578 
2579 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2580 {
2581 	unsigned int result;
2582 
2583 	if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2584 		/* some models advertise the handle but have no implementation
2585 		 * for it
2586 		 */
2587 		pr_info("No High Speed Charging capability found\n");
2588 		return 0;
2589 	}
2590 
2591 	hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2592 	if (!hsc_handle)
2593 		return -ENOMEM;
2594 
2595 	sysfs_attr_init(&hsc_handle->attr);
2596 	hsc_handle->attr.name = "battery_highspeed_charging";
2597 	hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2598 	hsc_handle->show = sony_nc_highspeed_charging_show;
2599 	hsc_handle->store = sony_nc_highspeed_charging_store;
2600 
2601 	result = device_create_file(&pd->dev, hsc_handle);
2602 	if (result) {
2603 		kfree(hsc_handle);
2604 		hsc_handle = NULL;
2605 		return result;
2606 	}
2607 
2608 	return 0;
2609 }
2610 
2611 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2612 {
2613 	if (hsc_handle) {
2614 		device_remove_file(&pd->dev, hsc_handle);
2615 		kfree(hsc_handle);
2616 		hsc_handle = NULL;
2617 	}
2618 }
2619 
2620 /* low battery function */
2621 static struct device_attribute *lowbatt_handle;
2622 
2623 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2624 		struct device_attribute *attr,
2625 		const char *buffer, size_t count)
2626 {
2627 	unsigned int result;
2628 	unsigned long value;
2629 
2630 	if (count > 31)
2631 		return -EINVAL;
2632 
2633 	if (kstrtoul(buffer, 10, &value) || value > 1)
2634 		return -EINVAL;
2635 
2636 	if (sony_call_snc_handle(0x0121, value << 8, &result))
2637 		return -EIO;
2638 
2639 	return count;
2640 }
2641 
2642 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2643 		struct device_attribute *attr, char *buffer)
2644 {
2645 	unsigned int result;
2646 
2647 	if (sony_call_snc_handle(0x0121, 0x0200, &result))
2648 		return -EIO;
2649 
2650 	return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2651 }
2652 
2653 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2654 {
2655 	unsigned int result;
2656 
2657 	lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2658 	if (!lowbatt_handle)
2659 		return -ENOMEM;
2660 
2661 	sysfs_attr_init(&lowbatt_handle->attr);
2662 	lowbatt_handle->attr.name = "lowbatt_hibernate";
2663 	lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2664 	lowbatt_handle->show = sony_nc_lowbatt_show;
2665 	lowbatt_handle->store = sony_nc_lowbatt_store;
2666 
2667 	result = device_create_file(&pd->dev, lowbatt_handle);
2668 	if (result) {
2669 		kfree(lowbatt_handle);
2670 		lowbatt_handle = NULL;
2671 		return result;
2672 	}
2673 
2674 	return 0;
2675 }
2676 
2677 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2678 {
2679 	if (lowbatt_handle) {
2680 		device_remove_file(&pd->dev, lowbatt_handle);
2681 		kfree(lowbatt_handle);
2682 		lowbatt_handle = NULL;
2683 	}
2684 }
2685 
2686 /* fan speed function */
2687 static struct device_attribute *fan_handle, *hsf_handle;
2688 
2689 static ssize_t sony_nc_hsfan_store(struct device *dev,
2690 		struct device_attribute *attr,
2691 		const char *buffer, size_t count)
2692 {
2693 	unsigned int result;
2694 	unsigned long value;
2695 
2696 	if (count > 31)
2697 		return -EINVAL;
2698 
2699 	if (kstrtoul(buffer, 10, &value) || value > 1)
2700 		return -EINVAL;
2701 
2702 	if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2703 		return -EIO;
2704 
2705 	return count;
2706 }
2707 
2708 static ssize_t sony_nc_hsfan_show(struct device *dev,
2709 		struct device_attribute *attr, char *buffer)
2710 {
2711 	unsigned int result;
2712 
2713 	if (sony_call_snc_handle(0x0149, 0x0100, &result))
2714 		return -EIO;
2715 
2716 	return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2717 }
2718 
2719 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2720 		struct device_attribute *attr, char *buffer)
2721 {
2722 	unsigned int result;
2723 
2724 	if (sony_call_snc_handle(0x0149, 0x0300, &result))
2725 		return -EIO;
2726 
2727 	return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2728 }
2729 
2730 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2731 {
2732 	unsigned int result;
2733 
2734 	fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2735 	if (!fan_handle)
2736 		return -ENOMEM;
2737 
2738 	hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2739 	if (!hsf_handle) {
2740 		result = -ENOMEM;
2741 		goto out_hsf_handle_alloc;
2742 	}
2743 
2744 	sysfs_attr_init(&fan_handle->attr);
2745 	fan_handle->attr.name = "fanspeed";
2746 	fan_handle->attr.mode = S_IRUGO;
2747 	fan_handle->show = sony_nc_fanspeed_show;
2748 	fan_handle->store = NULL;
2749 
2750 	sysfs_attr_init(&hsf_handle->attr);
2751 	hsf_handle->attr.name = "fan_forced";
2752 	hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2753 	hsf_handle->show = sony_nc_hsfan_show;
2754 	hsf_handle->store = sony_nc_hsfan_store;
2755 
2756 	result = device_create_file(&pd->dev, fan_handle);
2757 	if (result)
2758 		goto out_fan_handle;
2759 
2760 	result = device_create_file(&pd->dev, hsf_handle);
2761 	if (result)
2762 		goto out_hsf_handle;
2763 
2764 	return 0;
2765 
2766 out_hsf_handle:
2767 	device_remove_file(&pd->dev, fan_handle);
2768 
2769 out_fan_handle:
2770 	kfree(hsf_handle);
2771 	hsf_handle = NULL;
2772 
2773 out_hsf_handle_alloc:
2774 	kfree(fan_handle);
2775 	fan_handle = NULL;
2776 	return result;
2777 }
2778 
2779 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2780 {
2781 	if (fan_handle) {
2782 		device_remove_file(&pd->dev, fan_handle);
2783 		kfree(fan_handle);
2784 		fan_handle = NULL;
2785 	}
2786 	if (hsf_handle) {
2787 		device_remove_file(&pd->dev, hsf_handle);
2788 		kfree(hsf_handle);
2789 		hsf_handle = NULL;
2790 	}
2791 }
2792 
2793 /* USB charge function */
2794 static struct device_attribute *uc_handle;
2795 
2796 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2797 		struct device_attribute *attr,
2798 		const char *buffer, size_t count)
2799 {
2800 	unsigned int result;
2801 	unsigned long value;
2802 
2803 	if (count > 31)
2804 		return -EINVAL;
2805 
2806 	if (kstrtoul(buffer, 10, &value) || value > 1)
2807 		return -EINVAL;
2808 
2809 	if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2810 		return -EIO;
2811 
2812 	return count;
2813 }
2814 
2815 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2816 		struct device_attribute *attr, char *buffer)
2817 {
2818 	unsigned int result;
2819 
2820 	if (sony_call_snc_handle(0x0155, 0x0000, &result))
2821 		return -EIO;
2822 
2823 	return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2824 }
2825 
2826 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2827 {
2828 	unsigned int result;
2829 
2830 	if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2831 		/* some models advertise the handle but have no implementation
2832 		 * for it
2833 		 */
2834 		pr_info("No USB Charge capability found\n");
2835 		return 0;
2836 	}
2837 
2838 	uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2839 	if (!uc_handle)
2840 		return -ENOMEM;
2841 
2842 	sysfs_attr_init(&uc_handle->attr);
2843 	uc_handle->attr.name = "usb_charge";
2844 	uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2845 	uc_handle->show = sony_nc_usb_charge_show;
2846 	uc_handle->store = sony_nc_usb_charge_store;
2847 
2848 	result = device_create_file(&pd->dev, uc_handle);
2849 	if (result) {
2850 		kfree(uc_handle);
2851 		uc_handle = NULL;
2852 		return result;
2853 	}
2854 
2855 	return 0;
2856 }
2857 
2858 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2859 {
2860 	if (uc_handle) {
2861 		device_remove_file(&pd->dev, uc_handle);
2862 		kfree(uc_handle);
2863 		uc_handle = NULL;
2864 	}
2865 }
2866 
2867 /* Panel ID function */
2868 static struct device_attribute *panel_handle;
2869 
2870 static ssize_t sony_nc_panelid_show(struct device *dev,
2871 		struct device_attribute *attr, char *buffer)
2872 {
2873 	unsigned int result;
2874 
2875 	if (sony_call_snc_handle(0x011D, 0x0000, &result))
2876 		return -EIO;
2877 
2878 	return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2879 }
2880 
2881 static int sony_nc_panelid_setup(struct platform_device *pd)
2882 {
2883 	unsigned int result;
2884 
2885 	panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2886 	if (!panel_handle)
2887 		return -ENOMEM;
2888 
2889 	sysfs_attr_init(&panel_handle->attr);
2890 	panel_handle->attr.name = "panel_id";
2891 	panel_handle->attr.mode = S_IRUGO;
2892 	panel_handle->show = sony_nc_panelid_show;
2893 	panel_handle->store = NULL;
2894 
2895 	result = device_create_file(&pd->dev, panel_handle);
2896 	if (result) {
2897 		kfree(panel_handle);
2898 		panel_handle = NULL;
2899 		return result;
2900 	}
2901 
2902 	return 0;
2903 }
2904 
2905 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2906 {
2907 	if (panel_handle) {
2908 		device_remove_file(&pd->dev, panel_handle);
2909 		kfree(panel_handle);
2910 		panel_handle = NULL;
2911 	}
2912 }
2913 
2914 /* smart connect function */
2915 static struct device_attribute *sc_handle;
2916 
2917 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2918 		struct device_attribute *attr,
2919 		const char *buffer, size_t count)
2920 {
2921 	unsigned int result;
2922 	unsigned long value;
2923 
2924 	if (count > 31)
2925 		return -EINVAL;
2926 
2927 	if (kstrtoul(buffer, 10, &value) || value > 1)
2928 		return -EINVAL;
2929 
2930 	if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2931 		return -EIO;
2932 
2933 	return count;
2934 }
2935 
2936 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2937 {
2938 	unsigned int result;
2939 
2940 	sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2941 	if (!sc_handle)
2942 		return -ENOMEM;
2943 
2944 	sysfs_attr_init(&sc_handle->attr);
2945 	sc_handle->attr.name = "smart_connect";
2946 	sc_handle->attr.mode = S_IWUSR;
2947 	sc_handle->show = NULL;
2948 	sc_handle->store = sony_nc_smart_conn_store;
2949 
2950 	result = device_create_file(&pd->dev, sc_handle);
2951 	if (result) {
2952 		kfree(sc_handle);
2953 		sc_handle = NULL;
2954 		return result;
2955 	}
2956 
2957 	return 0;
2958 }
2959 
2960 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2961 {
2962 	if (sc_handle) {
2963 		device_remove_file(&pd->dev, sc_handle);
2964 		kfree(sc_handle);
2965 		sc_handle = NULL;
2966 	}
2967 }
2968 
2969 /* Touchpad enable/disable */
2970 struct touchpad_control {
2971 	struct device_attribute attr;
2972 	int handle;
2973 };
2974 static struct touchpad_control *tp_ctl;
2975 
2976 static ssize_t sony_nc_touchpad_store(struct device *dev,
2977 		struct device_attribute *attr, const char *buffer, size_t count)
2978 {
2979 	unsigned int result;
2980 	unsigned long value;
2981 
2982 	if (count > 31)
2983 		return -EINVAL;
2984 
2985 	if (kstrtoul(buffer, 10, &value) || value > 1)
2986 		return -EINVAL;
2987 
2988 	/* sysfs: 0 disabled, 1 enabled
2989 	 * EC: 0 enabled, 1 disabled
2990 	 */
2991 	if (sony_call_snc_handle(tp_ctl->handle,
2992 				(!value << 0x10) | 0x100, &result))
2993 		return -EIO;
2994 
2995 	return count;
2996 }
2997 
2998 static ssize_t sony_nc_touchpad_show(struct device *dev,
2999 		struct device_attribute *attr, char *buffer)
3000 {
3001 	unsigned int result;
3002 
3003 	if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3004 		return -EINVAL;
3005 
3006 	return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3007 }
3008 
3009 static int sony_nc_touchpad_setup(struct platform_device *pd,
3010 		unsigned int handle)
3011 {
3012 	int ret = 0;
3013 
3014 	tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3015 	if (!tp_ctl)
3016 		return -ENOMEM;
3017 
3018 	tp_ctl->handle = handle;
3019 
3020 	sysfs_attr_init(&tp_ctl->attr.attr);
3021 	tp_ctl->attr.attr.name = "touchpad";
3022 	tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3023 	tp_ctl->attr.show = sony_nc_touchpad_show;
3024 	tp_ctl->attr.store = sony_nc_touchpad_store;
3025 
3026 	ret = device_create_file(&pd->dev, &tp_ctl->attr);
3027 	if (ret) {
3028 		kfree(tp_ctl);
3029 		tp_ctl = NULL;
3030 	}
3031 
3032 	return ret;
3033 }
3034 
3035 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3036 {
3037 	if (tp_ctl) {
3038 		device_remove_file(&pd->dev, &tp_ctl->attr);
3039 		kfree(tp_ctl);
3040 		tp_ctl = NULL;
3041 	}
3042 }
3043 
3044 static void sony_nc_backlight_ng_read_limits(int handle,
3045 		struct sony_backlight_props *props)
3046 {
3047 	u64 offset;
3048 	int i;
3049 	int lvl_table_len = 0;
3050 	u8 min = 0xff, max = 0x00;
3051 	unsigned char buffer[32] = { 0 };
3052 
3053 	props->handle = handle;
3054 	props->offset = 0;
3055 	props->maxlvl = 0xff;
3056 
3057 	offset = sony_find_snc_handle(handle);
3058 
3059 	/* try to read the boundaries from ACPI tables, if we fail the above
3060 	 * defaults should be reasonable
3061 	 */
3062 	i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3063 			32);
3064 	if (i < 0)
3065 		return;
3066 
3067 	switch (handle) {
3068 	case 0x012f:
3069 	case 0x0137:
3070 		lvl_table_len = 9;
3071 		break;
3072 	case 0x143:
3073 	case 0x14b:
3074 	case 0x14c:
3075 		lvl_table_len = 16;
3076 		break;
3077 	}
3078 
3079 	/* the buffer lists brightness levels available, brightness levels are
3080 	 * from position 0 to 8 in the array, other values are used by ALS
3081 	 * control.
3082 	 */
3083 	for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3084 
3085 		dprintk("Brightness level: %d\n", buffer[i]);
3086 
3087 		if (!buffer[i])
3088 			break;
3089 
3090 		if (buffer[i] > max)
3091 			max = buffer[i];
3092 		if (buffer[i] < min)
3093 			min = buffer[i];
3094 	}
3095 	props->offset = min;
3096 	props->maxlvl = max;
3097 	dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3098 			props->maxlvl);
3099 }
3100 
3101 static void sony_nc_backlight_setup(void)
3102 {
3103 	int max_brightness = 0;
3104 	const struct backlight_ops *ops = NULL;
3105 	struct backlight_properties props;
3106 
3107 	if (sony_find_snc_handle(0x12f) >= 0) {
3108 		ops = &sony_backlight_ng_ops;
3109 		sony_bl_props.cmd_base = 0x0100;
3110 		sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3111 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3112 
3113 	} else if (sony_find_snc_handle(0x137) >= 0) {
3114 		ops = &sony_backlight_ng_ops;
3115 		sony_bl_props.cmd_base = 0x0100;
3116 		sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3117 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3118 
3119 	} else if (sony_find_snc_handle(0x143) >= 0) {
3120 		ops = &sony_backlight_ng_ops;
3121 		sony_bl_props.cmd_base = 0x3000;
3122 		sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3123 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3124 
3125 	} else if (sony_find_snc_handle(0x14b) >= 0) {
3126 		ops = &sony_backlight_ng_ops;
3127 		sony_bl_props.cmd_base = 0x3000;
3128 		sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3129 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3130 
3131 	} else if (sony_find_snc_handle(0x14c) >= 0) {
3132 		ops = &sony_backlight_ng_ops;
3133 		sony_bl_props.cmd_base = 0x3000;
3134 		sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3135 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3136 
3137 	} else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3138 		ops = &sony_backlight_ops;
3139 		max_brightness = SONY_MAX_BRIGHTNESS - 1;
3140 
3141 	} else
3142 		return;
3143 
3144 	memset(&props, 0, sizeof(struct backlight_properties));
3145 	props.type = BACKLIGHT_PLATFORM;
3146 	props.max_brightness = max_brightness;
3147 	sony_bl_props.dev = backlight_device_register("sony", NULL,
3148 						      &sony_bl_props,
3149 						      ops, &props);
3150 
3151 	if (IS_ERR(sony_bl_props.dev)) {
3152 		pr_warn("unable to register backlight device\n");
3153 		sony_bl_props.dev = NULL;
3154 	} else
3155 		sony_bl_props.dev->props.brightness =
3156 			ops->get_brightness(sony_bl_props.dev);
3157 }
3158 
3159 static void sony_nc_backlight_cleanup(void)
3160 {
3161 	backlight_device_unregister(sony_bl_props.dev);
3162 }
3163 
3164 static int sony_nc_add(struct acpi_device *device)
3165 {
3166 	acpi_status status;
3167 	int result = 0;
3168 	struct sony_nc_value *item;
3169 
3170 	sony_nc_acpi_device = device;
3171 	strcpy(acpi_device_class(device), "sony/hotkey");
3172 
3173 	sony_nc_acpi_handle = device->handle;
3174 
3175 	/* read device status */
3176 	result = acpi_bus_get_status(device);
3177 	/* bail IFF the above call was successful and the device is not present */
3178 	if (!result && !device->status.present) {
3179 		dprintk("Device not present\n");
3180 		result = -ENODEV;
3181 		goto outwalk;
3182 	}
3183 
3184 	result = sony_pf_add();
3185 	if (result)
3186 		goto outpresent;
3187 
3188 	if (debug) {
3189 		status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3190 				sony_nc_acpi_handle, 1, sony_walk_callback,
3191 				NULL, NULL, NULL);
3192 		if (ACPI_FAILURE(status)) {
3193 			pr_warn("unable to walk acpi resources\n");
3194 			result = -ENODEV;
3195 			goto outpresent;
3196 		}
3197 	}
3198 
3199 	result = sony_laptop_setup_input(device);
3200 	if (result) {
3201 		pr_err("Unable to create input devices\n");
3202 		goto outplatform;
3203 	}
3204 
3205 	if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3206 		int arg = 1;
3207 		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3208 			dprintk("ECON Method failed\n");
3209 	}
3210 
3211 	if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3212 		dprintk("Doing SNC setup\n");
3213 		/* retrieve the available handles */
3214 		result = sony_nc_handles_setup(sony_pf_device);
3215 		if (!result)
3216 			sony_nc_function_setup(device, sony_pf_device);
3217 	}
3218 
3219 	if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3220 		sony_nc_backlight_setup();
3221 
3222 	/* create sony_pf sysfs attributes related to the SNC device */
3223 	for (item = sony_nc_values; item->name; ++item) {
3224 
3225 		if (!debug && item->debug)
3226 			continue;
3227 
3228 		/* find the available acpiget as described in the DSDT */
3229 		for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3230 			if (acpi_has_method(sony_nc_acpi_handle,
3231 							*item->acpiget)) {
3232 				dprintk("Found %s getter: %s\n",
3233 						item->name, *item->acpiget);
3234 				item->devattr.attr.mode |= S_IRUGO;
3235 				break;
3236 			}
3237 		}
3238 
3239 		/* find the available acpiset as described in the DSDT */
3240 		for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3241 			if (acpi_has_method(sony_nc_acpi_handle,
3242 							*item->acpiset)) {
3243 				dprintk("Found %s setter: %s\n",
3244 						item->name, *item->acpiset);
3245 				item->devattr.attr.mode |= S_IWUSR;
3246 				break;
3247 			}
3248 		}
3249 
3250 		if (item->devattr.attr.mode != 0) {
3251 			result =
3252 			    device_create_file(&sony_pf_device->dev,
3253 					       &item->devattr);
3254 			if (result)
3255 				goto out_sysfs;
3256 		}
3257 	}
3258 
3259 	pr_info("SNC setup done.\n");
3260 	return 0;
3261 
3262 out_sysfs:
3263 	for (item = sony_nc_values; item->name; ++item) {
3264 		device_remove_file(&sony_pf_device->dev, &item->devattr);
3265 	}
3266 	sony_nc_backlight_cleanup();
3267 	sony_nc_function_cleanup(sony_pf_device);
3268 	sony_nc_handles_cleanup(sony_pf_device);
3269 
3270 outplatform:
3271 	sony_laptop_remove_input();
3272 
3273 outpresent:
3274 	sony_pf_remove();
3275 
3276 outwalk:
3277 	sony_nc_rfkill_cleanup();
3278 	return result;
3279 }
3280 
3281 static int sony_nc_remove(struct acpi_device *device)
3282 {
3283 	struct sony_nc_value *item;
3284 
3285 	sony_nc_backlight_cleanup();
3286 
3287 	sony_nc_acpi_device = NULL;
3288 
3289 	for (item = sony_nc_values; item->name; ++item) {
3290 		device_remove_file(&sony_pf_device->dev, &item->devattr);
3291 	}
3292 
3293 	sony_nc_function_cleanup(sony_pf_device);
3294 	sony_nc_handles_cleanup(sony_pf_device);
3295 	sony_pf_remove();
3296 	sony_laptop_remove_input();
3297 	dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3298 
3299 	return 0;
3300 }
3301 
3302 static const struct acpi_device_id sony_device_ids[] = {
3303 	{SONY_NC_HID, 0},
3304 	{SONY_PIC_HID, 0},
3305 	{"", 0},
3306 };
3307 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3308 
3309 static const struct acpi_device_id sony_nc_device_ids[] = {
3310 	{SONY_NC_HID, 0},
3311 	{"", 0},
3312 };
3313 
3314 static struct acpi_driver sony_nc_driver = {
3315 	.name = SONY_NC_DRIVER_NAME,
3316 	.class = SONY_NC_CLASS,
3317 	.ids = sony_nc_device_ids,
3318 	.owner = THIS_MODULE,
3319 	.ops = {
3320 		.add = sony_nc_add,
3321 		.remove = sony_nc_remove,
3322 		.notify = sony_nc_notify,
3323 		},
3324 	.drv.pm = &sony_nc_pm,
3325 };
3326 
3327 /*********** SPIC (SNY6001) Device ***********/
3328 
3329 #define SONYPI_DEVICE_TYPE1	0x00000001
3330 #define SONYPI_DEVICE_TYPE2	0x00000002
3331 #define SONYPI_DEVICE_TYPE3	0x00000004
3332 
3333 #define SONYPI_TYPE1_OFFSET	0x04
3334 #define SONYPI_TYPE2_OFFSET	0x12
3335 #define SONYPI_TYPE3_OFFSET	0x12
3336 
3337 struct sony_pic_ioport {
3338 	struct acpi_resource_io	io1;
3339 	struct acpi_resource_io	io2;
3340 	struct list_head	list;
3341 };
3342 
3343 struct sony_pic_irq {
3344 	struct acpi_resource_irq	irq;
3345 	struct list_head		list;
3346 };
3347 
3348 struct sonypi_eventtypes {
3349 	u8			data;
3350 	unsigned long		mask;
3351 	struct sonypi_event	*events;
3352 };
3353 
3354 struct sony_pic_dev {
3355 	struct acpi_device		*acpi_dev;
3356 	struct sony_pic_irq		*cur_irq;
3357 	struct sony_pic_ioport		*cur_ioport;
3358 	struct list_head		interrupts;
3359 	struct list_head		ioports;
3360 	struct mutex			lock;
3361 	struct sonypi_eventtypes	*event_types;
3362 	int                             (*handle_irq)(const u8, const u8);
3363 	int				model;
3364 	u16				evport_offset;
3365 	u8				camera_power;
3366 	u8				bluetooth_power;
3367 	u8				wwan_power;
3368 };
3369 
3370 static struct sony_pic_dev spic_dev = {
3371 	.interrupts	= LIST_HEAD_INIT(spic_dev.interrupts),
3372 	.ioports	= LIST_HEAD_INIT(spic_dev.ioports),
3373 };
3374 
3375 static int spic_drv_registered;
3376 
3377 /* Event masks */
3378 #define SONYPI_JOGGER_MASK			0x00000001
3379 #define SONYPI_CAPTURE_MASK			0x00000002
3380 #define SONYPI_FNKEY_MASK			0x00000004
3381 #define SONYPI_BLUETOOTH_MASK			0x00000008
3382 #define SONYPI_PKEY_MASK			0x00000010
3383 #define SONYPI_BACK_MASK			0x00000020
3384 #define SONYPI_HELP_MASK			0x00000040
3385 #define SONYPI_LID_MASK				0x00000080
3386 #define SONYPI_ZOOM_MASK			0x00000100
3387 #define SONYPI_THUMBPHRASE_MASK			0x00000200
3388 #define SONYPI_MEYE_MASK			0x00000400
3389 #define SONYPI_MEMORYSTICK_MASK			0x00000800
3390 #define SONYPI_BATTERY_MASK			0x00001000
3391 #define SONYPI_WIRELESS_MASK			0x00002000
3392 
3393 struct sonypi_event {
3394 	u8	data;
3395 	u8	event;
3396 };
3397 
3398 /* The set of possible button release events */
3399 static struct sonypi_event sonypi_releaseev[] = {
3400 	{ 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3401 	{ 0, 0 }
3402 };
3403 
3404 /* The set of possible jogger events  */
3405 static struct sonypi_event sonypi_joggerev[] = {
3406 	{ 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3407 	{ 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3408 	{ 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3409 	{ 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3410 	{ 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3411 	{ 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3412 	{ 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3413 	{ 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3414 	{ 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3415 	{ 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3416 	{ 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3417 	{ 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3418 	{ 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3419 	{ 0, 0 }
3420 };
3421 
3422 /* The set of possible capture button events */
3423 static struct sonypi_event sonypi_captureev[] = {
3424 	{ 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3425 	{ 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3426 	{ 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3427 	{ 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3428 	{ 0, 0 }
3429 };
3430 
3431 /* The set of possible fnkeys events */
3432 static struct sonypi_event sonypi_fnkeyev[] = {
3433 	{ 0x10, SONYPI_EVENT_FNKEY_ESC },
3434 	{ 0x11, SONYPI_EVENT_FNKEY_F1 },
3435 	{ 0x12, SONYPI_EVENT_FNKEY_F2 },
3436 	{ 0x13, SONYPI_EVENT_FNKEY_F3 },
3437 	{ 0x14, SONYPI_EVENT_FNKEY_F4 },
3438 	{ 0x15, SONYPI_EVENT_FNKEY_F5 },
3439 	{ 0x16, SONYPI_EVENT_FNKEY_F6 },
3440 	{ 0x17, SONYPI_EVENT_FNKEY_F7 },
3441 	{ 0x18, SONYPI_EVENT_FNKEY_F8 },
3442 	{ 0x19, SONYPI_EVENT_FNKEY_F9 },
3443 	{ 0x1a, SONYPI_EVENT_FNKEY_F10 },
3444 	{ 0x1b, SONYPI_EVENT_FNKEY_F11 },
3445 	{ 0x1c, SONYPI_EVENT_FNKEY_F12 },
3446 	{ 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3447 	{ 0x21, SONYPI_EVENT_FNKEY_1 },
3448 	{ 0x22, SONYPI_EVENT_FNKEY_2 },
3449 	{ 0x31, SONYPI_EVENT_FNKEY_D },
3450 	{ 0x32, SONYPI_EVENT_FNKEY_E },
3451 	{ 0x33, SONYPI_EVENT_FNKEY_F },
3452 	{ 0x34, SONYPI_EVENT_FNKEY_S },
3453 	{ 0x35, SONYPI_EVENT_FNKEY_B },
3454 	{ 0x36, SONYPI_EVENT_FNKEY_ONLY },
3455 	{ 0, 0 }
3456 };
3457 
3458 /* The set of possible program key events */
3459 static struct sonypi_event sonypi_pkeyev[] = {
3460 	{ 0x01, SONYPI_EVENT_PKEY_P1 },
3461 	{ 0x02, SONYPI_EVENT_PKEY_P2 },
3462 	{ 0x04, SONYPI_EVENT_PKEY_P3 },
3463 	{ 0x20, SONYPI_EVENT_PKEY_P1 },
3464 	{ 0, 0 }
3465 };
3466 
3467 /* The set of possible bluetooth events */
3468 static struct sonypi_event sonypi_blueev[] = {
3469 	{ 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3470 	{ 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3471 	{ 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3472 	{ 0, 0 }
3473 };
3474 
3475 /* The set of possible wireless events */
3476 static struct sonypi_event sonypi_wlessev[] = {
3477 	{ 0x59, SONYPI_EVENT_IGNORE },
3478 	{ 0x5a, SONYPI_EVENT_IGNORE },
3479 	{ 0, 0 }
3480 };
3481 
3482 /* The set of possible back button events */
3483 static struct sonypi_event sonypi_backev[] = {
3484 	{ 0x20, SONYPI_EVENT_BACK_PRESSED },
3485 	{ 0, 0 }
3486 };
3487 
3488 /* The set of possible help button events */
3489 static struct sonypi_event sonypi_helpev[] = {
3490 	{ 0x3b, SONYPI_EVENT_HELP_PRESSED },
3491 	{ 0, 0 }
3492 };
3493 
3494 
3495 /* The set of possible lid events */
3496 static struct sonypi_event sonypi_lidev[] = {
3497 	{ 0x51, SONYPI_EVENT_LID_CLOSED },
3498 	{ 0x50, SONYPI_EVENT_LID_OPENED },
3499 	{ 0, 0 }
3500 };
3501 
3502 /* The set of possible zoom events */
3503 static struct sonypi_event sonypi_zoomev[] = {
3504 	{ 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3505 	{ 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3506 	{ 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3507 	{ 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3508 	{ 0, 0 }
3509 };
3510 
3511 /* The set of possible thumbphrase events */
3512 static struct sonypi_event sonypi_thumbphraseev[] = {
3513 	{ 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3514 	{ 0, 0 }
3515 };
3516 
3517 /* The set of possible motioneye camera events */
3518 static struct sonypi_event sonypi_meyeev[] = {
3519 	{ 0x00, SONYPI_EVENT_MEYE_FACE },
3520 	{ 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3521 	{ 0, 0 }
3522 };
3523 
3524 /* The set of possible memorystick events */
3525 static struct sonypi_event sonypi_memorystickev[] = {
3526 	{ 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3527 	{ 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3528 	{ 0, 0 }
3529 };
3530 
3531 /* The set of possible battery events */
3532 static struct sonypi_event sonypi_batteryev[] = {
3533 	{ 0x20, SONYPI_EVENT_BATTERY_INSERT },
3534 	{ 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3535 	{ 0, 0 }
3536 };
3537 
3538 /* The set of possible volume events */
3539 static struct sonypi_event sonypi_volumeev[] = {
3540 	{ 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3541 	{ 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3542 	{ 0, 0 }
3543 };
3544 
3545 /* The set of possible brightness events */
3546 static struct sonypi_event sonypi_brightnessev[] = {
3547 	{ 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3548 	{ 0, 0 }
3549 };
3550 
3551 static struct sonypi_eventtypes type1_events[] = {
3552 	{ 0, 0xffffffff, sonypi_releaseev },
3553 	{ 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3554 	{ 0x30, SONYPI_LID_MASK, sonypi_lidev },
3555 	{ 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3556 	{ 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3557 	{ 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3558 	{ 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3559 	{ 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3560 	{ 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3561 	{ 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3562 	{ 0 },
3563 };
3564 static struct sonypi_eventtypes type2_events[] = {
3565 	{ 0, 0xffffffff, sonypi_releaseev },
3566 	{ 0x38, SONYPI_LID_MASK, sonypi_lidev },
3567 	{ 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3568 	{ 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3569 	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3570 	{ 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3571 	{ 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3572 	{ 0x11, SONYPI_BACK_MASK, sonypi_backev },
3573 	{ 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3574 	{ 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3575 	{ 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3576 	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3577 	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3578 	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3579 	{ 0 },
3580 };
3581 static struct sonypi_eventtypes type3_events[] = {
3582 	{ 0, 0xffffffff, sonypi_releaseev },
3583 	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3584 	{ 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3585 	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3586 	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3587 	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3588 	{ 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3589 	{ 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3590 	{ 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3591 	{ 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3592 	{ 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3593 	{ 0 },
3594 };
3595 
3596 /* low level spic calls */
3597 #define ITERATIONS_LONG		10000
3598 #define ITERATIONS_SHORT	10
3599 #define wait_on_command(command, iterations) {				\
3600 	unsigned int n = iterations;					\
3601 	while (--n && (command))					\
3602 		udelay(1);						\
3603 	if (!n)								\
3604 		dprintk("command failed at %s : %s (line %d)\n",	\
3605 				__FILE__, __func__, __LINE__);	\
3606 }
3607 
3608 static u8 sony_pic_call1(u8 dev)
3609 {
3610 	u8 v1, v2;
3611 
3612 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3613 			ITERATIONS_LONG);
3614 	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3615 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3616 	v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3617 	dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3618 	return v2;
3619 }
3620 
3621 static u8 sony_pic_call2(u8 dev, u8 fn)
3622 {
3623 	u8 v1;
3624 
3625 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3626 			ITERATIONS_LONG);
3627 	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3628 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3629 			ITERATIONS_LONG);
3630 	outb(fn, spic_dev.cur_ioport->io1.minimum);
3631 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3632 	dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3633 	return v1;
3634 }
3635 
3636 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3637 {
3638 	u8 v1;
3639 
3640 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3641 	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3642 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3643 	outb(fn, spic_dev.cur_ioport->io1.minimum);
3644 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3645 	outb(v, spic_dev.cur_ioport->io1.minimum);
3646 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3647 	dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3648 			dev, fn, v, v1);
3649 	return v1;
3650 }
3651 
3652 /*
3653  * minidrivers for SPIC models
3654  */
3655 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3656 {
3657 	/*
3658 	 * 0x31 could mean we have to take some extra action and wait for
3659 	 * the next irq for some Type3 models, it will generate a new
3660 	 * irq and we can read new data from the device:
3661 	 *  - 0x5c and 0x5f requires 0xA0
3662 	 *  - 0x61 requires 0xB3
3663 	 */
3664 	if (data_mask == 0x31) {
3665 		if (ev == 0x5c || ev == 0x5f)
3666 			sony_pic_call1(0xA0);
3667 		else if (ev == 0x61)
3668 			sony_pic_call1(0xB3);
3669 		return 0;
3670 	}
3671 	return 1;
3672 }
3673 
3674 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3675 {
3676 	struct pci_dev *pcidev;
3677 
3678 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3679 			PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3680 	if (pcidev) {
3681 		dev->model = SONYPI_DEVICE_TYPE1;
3682 		dev->evport_offset = SONYPI_TYPE1_OFFSET;
3683 		dev->event_types = type1_events;
3684 		goto out;
3685 	}
3686 
3687 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3688 			PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3689 	if (pcidev) {
3690 		dev->model = SONYPI_DEVICE_TYPE2;
3691 		dev->evport_offset = SONYPI_TYPE2_OFFSET;
3692 		dev->event_types = type2_events;
3693 		goto out;
3694 	}
3695 
3696 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3697 			PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3698 	if (pcidev) {
3699 		dev->model = SONYPI_DEVICE_TYPE3;
3700 		dev->handle_irq = type3_handle_irq;
3701 		dev->evport_offset = SONYPI_TYPE3_OFFSET;
3702 		dev->event_types = type3_events;
3703 		goto out;
3704 	}
3705 
3706 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3707 			PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3708 	if (pcidev) {
3709 		dev->model = SONYPI_DEVICE_TYPE3;
3710 		dev->handle_irq = type3_handle_irq;
3711 		dev->evport_offset = SONYPI_TYPE3_OFFSET;
3712 		dev->event_types = type3_events;
3713 		goto out;
3714 	}
3715 
3716 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3717 			PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3718 	if (pcidev) {
3719 		dev->model = SONYPI_DEVICE_TYPE3;
3720 		dev->handle_irq = type3_handle_irq;
3721 		dev->evport_offset = SONYPI_TYPE3_OFFSET;
3722 		dev->event_types = type3_events;
3723 		goto out;
3724 	}
3725 
3726 	/* default */
3727 	dev->model = SONYPI_DEVICE_TYPE2;
3728 	dev->evport_offset = SONYPI_TYPE2_OFFSET;
3729 	dev->event_types = type2_events;
3730 
3731 out:
3732 	pci_dev_put(pcidev);
3733 
3734 	pr_info("detected Type%d model\n",
3735 		dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3736 		dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3737 }
3738 
3739 /* camera tests and poweron/poweroff */
3740 #define SONYPI_CAMERA_PICTURE		5
3741 #define SONYPI_CAMERA_CONTROL		0x10
3742 
3743 #define SONYPI_CAMERA_BRIGHTNESS		0
3744 #define SONYPI_CAMERA_CONTRAST			1
3745 #define SONYPI_CAMERA_HUE			2
3746 #define SONYPI_CAMERA_COLOR			3
3747 #define SONYPI_CAMERA_SHARPNESS			4
3748 
3749 #define SONYPI_CAMERA_EXPOSURE_MASK		0xC
3750 #define SONYPI_CAMERA_WHITE_BALANCE_MASK	0x3
3751 #define SONYPI_CAMERA_PICTURE_MODE_MASK		0x30
3752 #define SONYPI_CAMERA_MUTE_MASK			0x40
3753 
3754 /* the rest don't need a loop until not 0xff */
3755 #define SONYPI_CAMERA_AGC			6
3756 #define SONYPI_CAMERA_AGC_MASK			0x30
3757 #define SONYPI_CAMERA_SHUTTER_MASK 		0x7
3758 
3759 #define SONYPI_CAMERA_SHUTDOWN_REQUEST		7
3760 #define SONYPI_CAMERA_CONTROL			0x10
3761 
3762 #define SONYPI_CAMERA_STATUS 			7
3763 #define SONYPI_CAMERA_STATUS_READY 		0x2
3764 #define SONYPI_CAMERA_STATUS_POSITION		0x4
3765 
3766 #define SONYPI_DIRECTION_BACKWARDS 		0x4
3767 
3768 #define SONYPI_CAMERA_REVISION 			8
3769 #define SONYPI_CAMERA_ROMVERSION 		9
3770 
3771 static int __sony_pic_camera_ready(void)
3772 {
3773 	u8 v;
3774 
3775 	v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3776 	return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3777 }
3778 
3779 static int __sony_pic_camera_off(void)
3780 {
3781 	if (!camera) {
3782 		pr_warn("camera control not enabled\n");
3783 		return -ENODEV;
3784 	}
3785 
3786 	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3787 				SONYPI_CAMERA_MUTE_MASK),
3788 			ITERATIONS_SHORT);
3789 
3790 	if (spic_dev.camera_power) {
3791 		sony_pic_call2(0x91, 0);
3792 		spic_dev.camera_power = 0;
3793 	}
3794 	return 0;
3795 }
3796 
3797 static int __sony_pic_camera_on(void)
3798 {
3799 	int i, j, x;
3800 
3801 	if (!camera) {
3802 		pr_warn("camera control not enabled\n");
3803 		return -ENODEV;
3804 	}
3805 
3806 	if (spic_dev.camera_power)
3807 		return 0;
3808 
3809 	for (j = 5; j > 0; j--) {
3810 
3811 		for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3812 			msleep(10);
3813 		sony_pic_call1(0x93);
3814 
3815 		for (i = 400; i > 0; i--) {
3816 			if (__sony_pic_camera_ready())
3817 				break;
3818 			msleep(10);
3819 		}
3820 		if (i)
3821 			break;
3822 	}
3823 
3824 	if (j == 0) {
3825 		pr_warn("failed to power on camera\n");
3826 		return -ENODEV;
3827 	}
3828 
3829 	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3830 				0x5a),
3831 			ITERATIONS_SHORT);
3832 
3833 	spic_dev.camera_power = 1;
3834 	return 0;
3835 }
3836 
3837 /* External camera command (exported to the motion eye v4l driver) */
3838 int sony_pic_camera_command(int command, u8 value)
3839 {
3840 	if (!camera)
3841 		return -EIO;
3842 
3843 	mutex_lock(&spic_dev.lock);
3844 
3845 	switch (command) {
3846 	case SONY_PIC_COMMAND_SETCAMERA:
3847 		if (value)
3848 			__sony_pic_camera_on();
3849 		else
3850 			__sony_pic_camera_off();
3851 		break;
3852 	case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3853 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3854 				ITERATIONS_SHORT);
3855 		break;
3856 	case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3857 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3858 				ITERATIONS_SHORT);
3859 		break;
3860 	case SONY_PIC_COMMAND_SETCAMERAHUE:
3861 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3862 				ITERATIONS_SHORT);
3863 		break;
3864 	case SONY_PIC_COMMAND_SETCAMERACOLOR:
3865 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3866 				ITERATIONS_SHORT);
3867 		break;
3868 	case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3869 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3870 				ITERATIONS_SHORT);
3871 		break;
3872 	case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3873 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3874 				ITERATIONS_SHORT);
3875 		break;
3876 	case SONY_PIC_COMMAND_SETCAMERAAGC:
3877 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3878 				ITERATIONS_SHORT);
3879 		break;
3880 	default:
3881 		pr_err("sony_pic_camera_command invalid: %d\n", command);
3882 		break;
3883 	}
3884 	mutex_unlock(&spic_dev.lock);
3885 	return 0;
3886 }
3887 EXPORT_SYMBOL(sony_pic_camera_command);
3888 
3889 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3890 static void __sony_pic_set_wwanpower(u8 state)
3891 {
3892 	state = !!state;
3893 	if (spic_dev.wwan_power == state)
3894 		return;
3895 	sony_pic_call2(0xB0, state);
3896 	sony_pic_call1(0x82);
3897 	spic_dev.wwan_power = state;
3898 }
3899 
3900 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3901 		struct device_attribute *attr,
3902 		const char *buffer, size_t count)
3903 {
3904 	unsigned long value;
3905 	if (count > 31)
3906 		return -EINVAL;
3907 
3908 	if (kstrtoul(buffer, 10, &value))
3909 		return -EINVAL;
3910 
3911 	mutex_lock(&spic_dev.lock);
3912 	__sony_pic_set_wwanpower(value);
3913 	mutex_unlock(&spic_dev.lock);
3914 
3915 	return count;
3916 }
3917 
3918 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3919 		struct device_attribute *attr, char *buffer)
3920 {
3921 	ssize_t count;
3922 	mutex_lock(&spic_dev.lock);
3923 	count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3924 	mutex_unlock(&spic_dev.lock);
3925 	return count;
3926 }
3927 
3928 /* bluetooth subsystem power state */
3929 static void __sony_pic_set_bluetoothpower(u8 state)
3930 {
3931 	state = !!state;
3932 	if (spic_dev.bluetooth_power == state)
3933 		return;
3934 	sony_pic_call2(0x96, state);
3935 	sony_pic_call1(0x82);
3936 	spic_dev.bluetooth_power = state;
3937 }
3938 
3939 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3940 		struct device_attribute *attr,
3941 		const char *buffer, size_t count)
3942 {
3943 	unsigned long value;
3944 	if (count > 31)
3945 		return -EINVAL;
3946 
3947 	if (kstrtoul(buffer, 10, &value))
3948 		return -EINVAL;
3949 
3950 	mutex_lock(&spic_dev.lock);
3951 	__sony_pic_set_bluetoothpower(value);
3952 	mutex_unlock(&spic_dev.lock);
3953 
3954 	return count;
3955 }
3956 
3957 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3958 		struct device_attribute *attr, char *buffer)
3959 {
3960 	ssize_t count = 0;
3961 	mutex_lock(&spic_dev.lock);
3962 	count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3963 	mutex_unlock(&spic_dev.lock);
3964 	return count;
3965 }
3966 
3967 /* fan speed */
3968 /* FAN0 information (reverse engineered from ACPI tables) */
3969 #define SONY_PIC_FAN0_STATUS	0x93
3970 static int sony_pic_set_fanspeed(unsigned long value)
3971 {
3972 	return ec_write(SONY_PIC_FAN0_STATUS, value);
3973 }
3974 
3975 static int sony_pic_get_fanspeed(u8 *value)
3976 {
3977 	return ec_read(SONY_PIC_FAN0_STATUS, value);
3978 }
3979 
3980 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3981 		struct device_attribute *attr,
3982 		const char *buffer, size_t count)
3983 {
3984 	unsigned long value;
3985 	if (count > 31)
3986 		return -EINVAL;
3987 
3988 	if (kstrtoul(buffer, 10, &value))
3989 		return -EINVAL;
3990 
3991 	if (sony_pic_set_fanspeed(value))
3992 		return -EIO;
3993 
3994 	return count;
3995 }
3996 
3997 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3998 		struct device_attribute *attr, char *buffer)
3999 {
4000 	u8 value = 0;
4001 	if (sony_pic_get_fanspeed(&value))
4002 		return -EIO;
4003 
4004 	return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4005 }
4006 
4007 #define SPIC_ATTR(_name, _mode)					\
4008 struct device_attribute spic_attr_##_name = __ATTR(_name,	\
4009 		_mode, sony_pic_## _name ##_show,		\
4010 		sony_pic_## _name ##_store)
4011 
4012 static SPIC_ATTR(bluetoothpower, 0644);
4013 static SPIC_ATTR(wwanpower, 0644);
4014 static SPIC_ATTR(fanspeed, 0644);
4015 
4016 static struct attribute *spic_attributes[] = {
4017 	&spic_attr_bluetoothpower.attr,
4018 	&spic_attr_wwanpower.attr,
4019 	&spic_attr_fanspeed.attr,
4020 	NULL
4021 };
4022 
4023 static const struct attribute_group spic_attribute_group = {
4024 	.attrs = spic_attributes
4025 };
4026 
4027 /******** SONYPI compatibility **********/
4028 #ifdef CONFIG_SONYPI_COMPAT
4029 
4030 /* battery / brightness / temperature  addresses */
4031 #define SONYPI_BAT_FLAGS	0x81
4032 #define SONYPI_LCD_LIGHT	0x96
4033 #define SONYPI_BAT1_PCTRM	0xa0
4034 #define SONYPI_BAT1_LEFT	0xa2
4035 #define SONYPI_BAT1_MAXRT	0xa4
4036 #define SONYPI_BAT2_PCTRM	0xa8
4037 #define SONYPI_BAT2_LEFT	0xaa
4038 #define SONYPI_BAT2_MAXRT	0xac
4039 #define SONYPI_BAT1_MAXTK	0xb0
4040 #define SONYPI_BAT1_FULL	0xb2
4041 #define SONYPI_BAT2_MAXTK	0xb8
4042 #define SONYPI_BAT2_FULL	0xba
4043 #define SONYPI_TEMP_STATUS	0xC1
4044 
4045 struct sonypi_compat_s {
4046 	struct fasync_struct	*fifo_async;
4047 	struct kfifo		fifo;
4048 	spinlock_t		fifo_lock;
4049 	wait_queue_head_t	fifo_proc_list;
4050 	atomic_t		open_count;
4051 };
4052 static struct sonypi_compat_s sonypi_compat = {
4053 	.open_count = ATOMIC_INIT(0),
4054 };
4055 
4056 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4057 {
4058 	return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4059 }
4060 
4061 static int sonypi_misc_release(struct inode *inode, struct file *file)
4062 {
4063 	atomic_dec(&sonypi_compat.open_count);
4064 	return 0;
4065 }
4066 
4067 static int sonypi_misc_open(struct inode *inode, struct file *file)
4068 {
4069 	/* Flush input queue on first open */
4070 	unsigned long flags;
4071 
4072 	spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4073 
4074 	if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4075 		kfifo_reset(&sonypi_compat.fifo);
4076 
4077 	spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4078 
4079 	return 0;
4080 }
4081 
4082 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4083 				size_t count, loff_t *pos)
4084 {
4085 	ssize_t ret;
4086 	unsigned char c;
4087 
4088 	if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4089 	    (file->f_flags & O_NONBLOCK))
4090 		return -EAGAIN;
4091 
4092 	ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4093 				       kfifo_len(&sonypi_compat.fifo) != 0);
4094 	if (ret)
4095 		return ret;
4096 
4097 	while (ret < count &&
4098 	       (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4099 			  &sonypi_compat.fifo_lock) == sizeof(c))) {
4100 		if (put_user(c, buf++))
4101 			return -EFAULT;
4102 		ret++;
4103 	}
4104 
4105 	if (ret > 0) {
4106 		struct inode *inode = file_inode(file);
4107 		inode->i_atime = current_time(inode);
4108 	}
4109 
4110 	return ret;
4111 }
4112 
4113 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4114 {
4115 	poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4116 	if (kfifo_len(&sonypi_compat.fifo))
4117 		return EPOLLIN | EPOLLRDNORM;
4118 	return 0;
4119 }
4120 
4121 static int ec_read16(u8 addr, u16 *value)
4122 {
4123 	u8 val_lb, val_hb;
4124 	if (ec_read(addr, &val_lb))
4125 		return -1;
4126 	if (ec_read(addr + 1, &val_hb))
4127 		return -1;
4128 	*value = val_lb | (val_hb << 8);
4129 	return 0;
4130 }
4131 
4132 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4133 							unsigned long arg)
4134 {
4135 	int ret = 0;
4136 	void __user *argp = (void __user *)arg;
4137 	u8 val8;
4138 	u16 val16;
4139 	int value;
4140 
4141 	mutex_lock(&spic_dev.lock);
4142 	switch (cmd) {
4143 	case SONYPI_IOCGBRT:
4144 		if (sony_bl_props.dev == NULL) {
4145 			ret = -EIO;
4146 			break;
4147 		}
4148 		if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4149 					&value)) {
4150 			ret = -EIO;
4151 			break;
4152 		}
4153 		val8 = ((value & 0xff) - 1) << 5;
4154 		if (copy_to_user(argp, &val8, sizeof(val8)))
4155 				ret = -EFAULT;
4156 		break;
4157 	case SONYPI_IOCSBRT:
4158 		if (sony_bl_props.dev == NULL) {
4159 			ret = -EIO;
4160 			break;
4161 		}
4162 		if (copy_from_user(&val8, argp, sizeof(val8))) {
4163 			ret = -EFAULT;
4164 			break;
4165 		}
4166 		value = (val8 >> 5) + 1;
4167 		if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4168 					NULL)) {
4169 			ret = -EIO;
4170 			break;
4171 		}
4172 		/* sync the backlight device status */
4173 		sony_bl_props.dev->props.brightness =
4174 		    sony_backlight_get_brightness(sony_bl_props.dev);
4175 		break;
4176 	case SONYPI_IOCGBAT1CAP:
4177 		if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4178 			ret = -EIO;
4179 			break;
4180 		}
4181 		if (copy_to_user(argp, &val16, sizeof(val16)))
4182 			ret = -EFAULT;
4183 		break;
4184 	case SONYPI_IOCGBAT1REM:
4185 		if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4186 			ret = -EIO;
4187 			break;
4188 		}
4189 		if (copy_to_user(argp, &val16, sizeof(val16)))
4190 			ret = -EFAULT;
4191 		break;
4192 	case SONYPI_IOCGBAT2CAP:
4193 		if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4194 			ret = -EIO;
4195 			break;
4196 		}
4197 		if (copy_to_user(argp, &val16, sizeof(val16)))
4198 			ret = -EFAULT;
4199 		break;
4200 	case SONYPI_IOCGBAT2REM:
4201 		if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4202 			ret = -EIO;
4203 			break;
4204 		}
4205 		if (copy_to_user(argp, &val16, sizeof(val16)))
4206 			ret = -EFAULT;
4207 		break;
4208 	case SONYPI_IOCGBATFLAGS:
4209 		if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4210 			ret = -EIO;
4211 			break;
4212 		}
4213 		val8 &= 0x07;
4214 		if (copy_to_user(argp, &val8, sizeof(val8)))
4215 			ret = -EFAULT;
4216 		break;
4217 	case SONYPI_IOCGBLUE:
4218 		val8 = spic_dev.bluetooth_power;
4219 		if (copy_to_user(argp, &val8, sizeof(val8)))
4220 			ret = -EFAULT;
4221 		break;
4222 	case SONYPI_IOCSBLUE:
4223 		if (copy_from_user(&val8, argp, sizeof(val8))) {
4224 			ret = -EFAULT;
4225 			break;
4226 		}
4227 		__sony_pic_set_bluetoothpower(val8);
4228 		break;
4229 	/* FAN Controls */
4230 	case SONYPI_IOCGFAN:
4231 		if (sony_pic_get_fanspeed(&val8)) {
4232 			ret = -EIO;
4233 			break;
4234 		}
4235 		if (copy_to_user(argp, &val8, sizeof(val8)))
4236 			ret = -EFAULT;
4237 		break;
4238 	case SONYPI_IOCSFAN:
4239 		if (copy_from_user(&val8, argp, sizeof(val8))) {
4240 			ret = -EFAULT;
4241 			break;
4242 		}
4243 		if (sony_pic_set_fanspeed(val8))
4244 			ret = -EIO;
4245 		break;
4246 	/* GET Temperature (useful under APM) */
4247 	case SONYPI_IOCGTEMP:
4248 		if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4249 			ret = -EIO;
4250 			break;
4251 		}
4252 		if (copy_to_user(argp, &val8, sizeof(val8)))
4253 			ret = -EFAULT;
4254 		break;
4255 	default:
4256 		ret = -EINVAL;
4257 	}
4258 	mutex_unlock(&spic_dev.lock);
4259 	return ret;
4260 }
4261 
4262 static const struct file_operations sonypi_misc_fops = {
4263 	.owner		= THIS_MODULE,
4264 	.read		= sonypi_misc_read,
4265 	.poll		= sonypi_misc_poll,
4266 	.open		= sonypi_misc_open,
4267 	.release	= sonypi_misc_release,
4268 	.fasync		= sonypi_misc_fasync,
4269 	.unlocked_ioctl	= sonypi_misc_ioctl,
4270 	.llseek		= noop_llseek,
4271 };
4272 
4273 static struct miscdevice sonypi_misc_device = {
4274 	.minor		= MISC_DYNAMIC_MINOR,
4275 	.name		= "sonypi",
4276 	.fops		= &sonypi_misc_fops,
4277 };
4278 
4279 static void sonypi_compat_report_event(u8 event)
4280 {
4281 	kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4282 			sizeof(event), &sonypi_compat.fifo_lock);
4283 	kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4284 	wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4285 }
4286 
4287 static int sonypi_compat_init(void)
4288 {
4289 	int error;
4290 
4291 	spin_lock_init(&sonypi_compat.fifo_lock);
4292 	error =
4293 	 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4294 	if (error) {
4295 		pr_err("kfifo_alloc failed\n");
4296 		return error;
4297 	}
4298 
4299 	init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4300 
4301 	if (minor != -1)
4302 		sonypi_misc_device.minor = minor;
4303 	error = misc_register(&sonypi_misc_device);
4304 	if (error) {
4305 		pr_err("misc_register failed\n");
4306 		goto err_free_kfifo;
4307 	}
4308 	if (minor == -1)
4309 		pr_info("device allocated minor is %d\n",
4310 			sonypi_misc_device.minor);
4311 
4312 	return 0;
4313 
4314 err_free_kfifo:
4315 	kfifo_free(&sonypi_compat.fifo);
4316 	return error;
4317 }
4318 
4319 static void sonypi_compat_exit(void)
4320 {
4321 	misc_deregister(&sonypi_misc_device);
4322 	kfifo_free(&sonypi_compat.fifo);
4323 }
4324 #else
4325 static int sonypi_compat_init(void) { return 0; }
4326 static void sonypi_compat_exit(void) { }
4327 static void sonypi_compat_report_event(u8 event) { }
4328 #endif /* CONFIG_SONYPI_COMPAT */
4329 
4330 /*
4331  * ACPI callbacks
4332  */
4333 static acpi_status
4334 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4335 {
4336 	u32 i;
4337 	struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4338 
4339 	switch (resource->type) {
4340 	case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4341 		{
4342 			/* start IO enumeration */
4343 			struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4344 			if (!ioport)
4345 				return AE_ERROR;
4346 
4347 			list_add(&ioport->list, &dev->ioports);
4348 			return AE_OK;
4349 		}
4350 
4351 	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4352 		/* end IO enumeration */
4353 		return AE_OK;
4354 
4355 	case ACPI_RESOURCE_TYPE_IRQ:
4356 		{
4357 			struct acpi_resource_irq *p = &resource->data.irq;
4358 			struct sony_pic_irq *interrupt = NULL;
4359 			if (!p || !p->interrupt_count) {
4360 				/*
4361 				 * IRQ descriptors may have no IRQ# bits set,
4362 				 * particularly those those w/ _STA disabled
4363 				 */
4364 				dprintk("Blank IRQ resource\n");
4365 				return AE_OK;
4366 			}
4367 			for (i = 0; i < p->interrupt_count; i++) {
4368 				if (!p->interrupts[i]) {
4369 					pr_warn("Invalid IRQ %d\n",
4370 						p->interrupts[i]);
4371 					continue;
4372 				}
4373 				interrupt = kzalloc(sizeof(*interrupt),
4374 						GFP_KERNEL);
4375 				if (!interrupt)
4376 					return AE_ERROR;
4377 
4378 				list_add(&interrupt->list, &dev->interrupts);
4379 				interrupt->irq.triggering = p->triggering;
4380 				interrupt->irq.polarity = p->polarity;
4381 				interrupt->irq.shareable = p->shareable;
4382 				interrupt->irq.interrupt_count = 1;
4383 				interrupt->irq.interrupts[0] = p->interrupts[i];
4384 			}
4385 			return AE_OK;
4386 		}
4387 	case ACPI_RESOURCE_TYPE_IO:
4388 		{
4389 			struct acpi_resource_io *io = &resource->data.io;
4390 			struct sony_pic_ioport *ioport =
4391 				list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4392 			if (!io) {
4393 				dprintk("Blank IO resource\n");
4394 				return AE_OK;
4395 			}
4396 
4397 			if (!ioport->io1.minimum) {
4398 				memcpy(&ioport->io1, io, sizeof(*io));
4399 				dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4400 						ioport->io1.address_length);
4401 			}
4402 			else if (!ioport->io2.minimum) {
4403 				memcpy(&ioport->io2, io, sizeof(*io));
4404 				dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4405 						ioport->io2.address_length);
4406 			}
4407 			else {
4408 				pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4409 				return AE_ERROR;
4410 			}
4411 			return AE_OK;
4412 		}
4413 
4414 	case ACPI_RESOURCE_TYPE_END_TAG:
4415 		return AE_OK;
4416 
4417 	default:
4418 		dprintk("Resource %d isn't an IRQ nor an IO port\n",
4419 			resource->type);
4420 		return AE_CTRL_TERMINATE;
4421 
4422 	}
4423 }
4424 
4425 static int sony_pic_possible_resources(struct acpi_device *device)
4426 {
4427 	int result = 0;
4428 	acpi_status status = AE_OK;
4429 
4430 	if (!device)
4431 		return -EINVAL;
4432 
4433 	/* get device status */
4434 	/* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4435 	dprintk("Evaluating _STA\n");
4436 	result = acpi_bus_get_status(device);
4437 	if (result) {
4438 		pr_warn("Unable to read status\n");
4439 		goto end;
4440 	}
4441 
4442 	if (!device->status.enabled)
4443 		dprintk("Device disabled\n");
4444 	else
4445 		dprintk("Device enabled\n");
4446 
4447 	/*
4448 	 * Query and parse 'method'
4449 	 */
4450 	dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4451 	status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4452 			sony_pic_read_possible_resource, &spic_dev);
4453 	if (ACPI_FAILURE(status)) {
4454 		pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4455 		result = -ENODEV;
4456 	}
4457 end:
4458 	return result;
4459 }
4460 
4461 /*
4462  *  Disable the spic device by calling its _DIS method
4463  */
4464 static int sony_pic_disable(struct acpi_device *device)
4465 {
4466 	acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4467 					       NULL);
4468 
4469 	if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4470 		return -ENXIO;
4471 
4472 	dprintk("Device disabled\n");
4473 	return 0;
4474 }
4475 
4476 
4477 /*
4478  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4479  *
4480  *  Call _SRS to set current resources
4481  */
4482 static int sony_pic_enable(struct acpi_device *device,
4483 		struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4484 {
4485 	acpi_status status;
4486 	int result = 0;
4487 	/* Type 1 resource layout is:
4488 	 *    IO
4489 	 *    IO
4490 	 *    IRQNoFlags
4491 	 *    End
4492 	 *
4493 	 * Type 2 and 3 resource layout is:
4494 	 *    IO
4495 	 *    IRQNoFlags
4496 	 *    End
4497 	 */
4498 	struct {
4499 		struct acpi_resource res1;
4500 		struct acpi_resource res2;
4501 		struct acpi_resource res3;
4502 		struct acpi_resource res4;
4503 	} *resource;
4504 	struct acpi_buffer buffer = { 0, NULL };
4505 
4506 	if (!ioport || !irq)
4507 		return -EINVAL;
4508 
4509 	/* init acpi_buffer */
4510 	resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4511 	if (!resource)
4512 		return -ENOMEM;
4513 
4514 	buffer.length = sizeof(*resource) + 1;
4515 	buffer.pointer = resource;
4516 
4517 	/* setup Type 1 resources */
4518 	if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4519 
4520 		/* setup io resources */
4521 		resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4522 		resource->res1.length = sizeof(struct acpi_resource);
4523 		memcpy(&resource->res1.data.io, &ioport->io1,
4524 				sizeof(struct acpi_resource_io));
4525 
4526 		resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4527 		resource->res2.length = sizeof(struct acpi_resource);
4528 		memcpy(&resource->res2.data.io, &ioport->io2,
4529 				sizeof(struct acpi_resource_io));
4530 
4531 		/* setup irq resource */
4532 		resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4533 		resource->res3.length = sizeof(struct acpi_resource);
4534 		memcpy(&resource->res3.data.irq, &irq->irq,
4535 				sizeof(struct acpi_resource_irq));
4536 		/* we requested a shared irq */
4537 		resource->res3.data.irq.shareable = ACPI_SHARED;
4538 
4539 		resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4540 		resource->res4.length = sizeof(struct acpi_resource);
4541 	}
4542 	/* setup Type 2/3 resources */
4543 	else {
4544 		/* setup io resource */
4545 		resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4546 		resource->res1.length = sizeof(struct acpi_resource);
4547 		memcpy(&resource->res1.data.io, &ioport->io1,
4548 				sizeof(struct acpi_resource_io));
4549 
4550 		/* setup irq resource */
4551 		resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4552 		resource->res2.length = sizeof(struct acpi_resource);
4553 		memcpy(&resource->res2.data.irq, &irq->irq,
4554 				sizeof(struct acpi_resource_irq));
4555 		/* we requested a shared irq */
4556 		resource->res2.data.irq.shareable = ACPI_SHARED;
4557 
4558 		resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4559 		resource->res3.length = sizeof(struct acpi_resource);
4560 	}
4561 
4562 	/* Attempt to set the resource */
4563 	dprintk("Evaluating _SRS\n");
4564 	status = acpi_set_current_resources(device->handle, &buffer);
4565 
4566 	/* check for total failure */
4567 	if (ACPI_FAILURE(status)) {
4568 		pr_err("Error evaluating _SRS\n");
4569 		result = -ENODEV;
4570 		goto end;
4571 	}
4572 
4573 	/* Necessary device initializations calls (from sonypi) */
4574 	sony_pic_call1(0x82);
4575 	sony_pic_call2(0x81, 0xff);
4576 	sony_pic_call1(compat ? 0x92 : 0x82);
4577 
4578 end:
4579 	kfree(resource);
4580 	return result;
4581 }
4582 
4583 /*****************
4584  *
4585  * ISR: some event is available
4586  *
4587  *****************/
4588 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4589 {
4590 	int i, j;
4591 	u8 ev = 0;
4592 	u8 data_mask = 0;
4593 	u8 device_event = 0;
4594 
4595 	struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4596 
4597 	ev = inb_p(dev->cur_ioport->io1.minimum);
4598 	if (dev->cur_ioport->io2.minimum)
4599 		data_mask = inb_p(dev->cur_ioport->io2.minimum);
4600 	else
4601 		data_mask = inb_p(dev->cur_ioport->io1.minimum +
4602 				dev->evport_offset);
4603 
4604 	dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4605 			ev, data_mask, dev->cur_ioport->io1.minimum,
4606 			dev->evport_offset);
4607 
4608 	if (ev == 0x00 || ev == 0xff)
4609 		return IRQ_HANDLED;
4610 
4611 	for (i = 0; dev->event_types[i].mask; i++) {
4612 
4613 		if ((data_mask & dev->event_types[i].data) !=
4614 		    dev->event_types[i].data)
4615 			continue;
4616 
4617 		if (!(mask & dev->event_types[i].mask))
4618 			continue;
4619 
4620 		for (j = 0; dev->event_types[i].events[j].event; j++) {
4621 			if (ev == dev->event_types[i].events[j].data) {
4622 				device_event =
4623 					dev->event_types[i].events[j].event;
4624 				/* some events may require ignoring */
4625 				if (!device_event)
4626 					return IRQ_HANDLED;
4627 				goto found;
4628 			}
4629 		}
4630 	}
4631 	/* Still not able to decode the event try to pass
4632 	 * it over to the minidriver
4633 	 */
4634 	if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4635 		return IRQ_HANDLED;
4636 
4637 	dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4638 			ev, data_mask, dev->cur_ioport->io1.minimum,
4639 			dev->evport_offset);
4640 	return IRQ_HANDLED;
4641 
4642 found:
4643 	sony_laptop_report_input_event(device_event);
4644 	sonypi_compat_report_event(device_event);
4645 	return IRQ_HANDLED;
4646 }
4647 
4648 /*****************
4649  *
4650  *  ACPI driver
4651  *
4652  *****************/
4653 static int sony_pic_remove(struct acpi_device *device)
4654 {
4655 	struct sony_pic_ioport *io, *tmp_io;
4656 	struct sony_pic_irq *irq, *tmp_irq;
4657 
4658 	if (sony_pic_disable(device)) {
4659 		pr_err("Couldn't disable device\n");
4660 		return -ENXIO;
4661 	}
4662 
4663 	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4664 	release_region(spic_dev.cur_ioport->io1.minimum,
4665 			spic_dev.cur_ioport->io1.address_length);
4666 	if (spic_dev.cur_ioport->io2.minimum)
4667 		release_region(spic_dev.cur_ioport->io2.minimum,
4668 				spic_dev.cur_ioport->io2.address_length);
4669 
4670 	sonypi_compat_exit();
4671 
4672 	sony_laptop_remove_input();
4673 
4674 	/* pf attrs */
4675 	sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4676 	sony_pf_remove();
4677 
4678 	list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4679 		list_del(&io->list);
4680 		kfree(io);
4681 	}
4682 	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4683 		list_del(&irq->list);
4684 		kfree(irq);
4685 	}
4686 	spic_dev.cur_ioport = NULL;
4687 	spic_dev.cur_irq = NULL;
4688 
4689 	dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4690 	return 0;
4691 }
4692 
4693 static int sony_pic_add(struct acpi_device *device)
4694 {
4695 	int result;
4696 	struct sony_pic_ioport *io, *tmp_io;
4697 	struct sony_pic_irq *irq, *tmp_irq;
4698 
4699 	spic_dev.acpi_dev = device;
4700 	strcpy(acpi_device_class(device), "sony/hotkey");
4701 	sony_pic_detect_device_type(&spic_dev);
4702 	mutex_init(&spic_dev.lock);
4703 
4704 	/* read _PRS resources */
4705 	result = sony_pic_possible_resources(device);
4706 	if (result) {
4707 		pr_err("Unable to read possible resources\n");
4708 		goto err_free_resources;
4709 	}
4710 
4711 	/* setup input devices and helper fifo */
4712 	result = sony_laptop_setup_input(device);
4713 	if (result) {
4714 		pr_err("Unable to create input devices\n");
4715 		goto err_free_resources;
4716 	}
4717 
4718 	result = sonypi_compat_init();
4719 	if (result)
4720 		goto err_remove_input;
4721 
4722 	/* request io port */
4723 	list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4724 		if (request_region(io->io1.minimum, io->io1.address_length,
4725 					"Sony Programmable I/O Device")) {
4726 			dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4727 					io->io1.minimum, io->io1.maximum,
4728 					io->io1.address_length);
4729 			/* Type 1 have 2 ioports */
4730 			if (io->io2.minimum) {
4731 				if (request_region(io->io2.minimum,
4732 						io->io2.address_length,
4733 						"Sony Programmable I/O Device")) {
4734 					dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4735 							io->io2.minimum, io->io2.maximum,
4736 							io->io2.address_length);
4737 					spic_dev.cur_ioport = io;
4738 					break;
4739 				}
4740 				else {
4741 					dprintk("Unable to get I/O port2: "
4742 							"0x%.4x (0x%.4x) + 0x%.2x\n",
4743 							io->io2.minimum, io->io2.maximum,
4744 							io->io2.address_length);
4745 					release_region(io->io1.minimum,
4746 							io->io1.address_length);
4747 				}
4748 			}
4749 			else {
4750 				spic_dev.cur_ioport = io;
4751 				break;
4752 			}
4753 		}
4754 	}
4755 	if (!spic_dev.cur_ioport) {
4756 		pr_err("Failed to request_region\n");
4757 		result = -ENODEV;
4758 		goto err_remove_compat;
4759 	}
4760 
4761 	/* request IRQ */
4762 	list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4763 		if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4764 					0, "sony-laptop", &spic_dev)) {
4765 			dprintk("IRQ: %d - triggering: %d - "
4766 					"polarity: %d - shr: %d\n",
4767 					irq->irq.interrupts[0],
4768 					irq->irq.triggering,
4769 					irq->irq.polarity,
4770 					irq->irq.shareable);
4771 			spic_dev.cur_irq = irq;
4772 			break;
4773 		}
4774 	}
4775 	if (!spic_dev.cur_irq) {
4776 		pr_err("Failed to request_irq\n");
4777 		result = -ENODEV;
4778 		goto err_release_region;
4779 	}
4780 
4781 	/* set resource status _SRS */
4782 	result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4783 	if (result) {
4784 		pr_err("Couldn't enable device\n");
4785 		goto err_free_irq;
4786 	}
4787 
4788 	spic_dev.bluetooth_power = -1;
4789 	/* create device attributes */
4790 	result = sony_pf_add();
4791 	if (result)
4792 		goto err_disable_device;
4793 
4794 	result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4795 	if (result)
4796 		goto err_remove_pf;
4797 
4798 	pr_info("SPIC setup done.\n");
4799 	return 0;
4800 
4801 err_remove_pf:
4802 	sony_pf_remove();
4803 
4804 err_disable_device:
4805 	sony_pic_disable(device);
4806 
4807 err_free_irq:
4808 	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4809 
4810 err_release_region:
4811 	release_region(spic_dev.cur_ioport->io1.minimum,
4812 			spic_dev.cur_ioport->io1.address_length);
4813 	if (spic_dev.cur_ioport->io2.minimum)
4814 		release_region(spic_dev.cur_ioport->io2.minimum,
4815 				spic_dev.cur_ioport->io2.address_length);
4816 
4817 err_remove_compat:
4818 	sonypi_compat_exit();
4819 
4820 err_remove_input:
4821 	sony_laptop_remove_input();
4822 
4823 err_free_resources:
4824 	list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4825 		list_del(&io->list);
4826 		kfree(io);
4827 	}
4828 	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4829 		list_del(&irq->list);
4830 		kfree(irq);
4831 	}
4832 	spic_dev.cur_ioport = NULL;
4833 	spic_dev.cur_irq = NULL;
4834 
4835 	return result;
4836 }
4837 
4838 #ifdef CONFIG_PM_SLEEP
4839 static int sony_pic_suspend(struct device *dev)
4840 {
4841 	if (sony_pic_disable(to_acpi_device(dev)))
4842 		return -ENXIO;
4843 	return 0;
4844 }
4845 
4846 static int sony_pic_resume(struct device *dev)
4847 {
4848 	sony_pic_enable(to_acpi_device(dev),
4849 			spic_dev.cur_ioport, spic_dev.cur_irq);
4850 	return 0;
4851 }
4852 #endif
4853 
4854 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4855 
4856 static const struct acpi_device_id sony_pic_device_ids[] = {
4857 	{SONY_PIC_HID, 0},
4858 	{"", 0},
4859 };
4860 
4861 static struct acpi_driver sony_pic_driver = {
4862 	.name = SONY_PIC_DRIVER_NAME,
4863 	.class = SONY_PIC_CLASS,
4864 	.ids = sony_pic_device_ids,
4865 	.owner = THIS_MODULE,
4866 	.ops = {
4867 		.add = sony_pic_add,
4868 		.remove = sony_pic_remove,
4869 		},
4870 	.drv.pm = &sony_pic_pm,
4871 };
4872 
4873 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4874 	{
4875 		.ident = "Sony Vaio",
4876 		.matches = {
4877 			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4878 			DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4879 		},
4880 	},
4881 	{
4882 		.ident = "Sony Vaio",
4883 		.matches = {
4884 			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4885 			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4886 		},
4887 	},
4888 	{ }
4889 };
4890 
4891 static int __init sony_laptop_init(void)
4892 {
4893 	int result;
4894 
4895 	if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4896 		result = acpi_bus_register_driver(&sony_pic_driver);
4897 		if (result) {
4898 			pr_err("Unable to register SPIC driver\n");
4899 			goto out;
4900 		}
4901 		spic_drv_registered = 1;
4902 	}
4903 
4904 	result = acpi_bus_register_driver(&sony_nc_driver);
4905 	if (result) {
4906 		pr_err("Unable to register SNC driver\n");
4907 		goto out_unregister_pic;
4908 	}
4909 
4910 	return 0;
4911 
4912 out_unregister_pic:
4913 	if (spic_drv_registered)
4914 		acpi_bus_unregister_driver(&sony_pic_driver);
4915 out:
4916 	return result;
4917 }
4918 
4919 static void __exit sony_laptop_exit(void)
4920 {
4921 	acpi_bus_unregister_driver(&sony_nc_driver);
4922 	if (spic_drv_registered)
4923 		acpi_bus_unregister_driver(&sony_pic_driver);
4924 }
4925 
4926 module_init(sony_laptop_init);
4927 module_exit(sony_laptop_exit);
4928