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", PLATFORM_DEVID_NONE);
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 #define MIN(a, b)	(a > b ? b : a)
761 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
762 		void *buffer, size_t buflen)
763 {
764 	int ret = 0;
765 	size_t len;
766 	union acpi_object *object = __call_snc_method(handle, name, value);
767 
768 	if (!object)
769 		return -EINVAL;
770 
771 	if (!buffer) {
772 		/* do nothing */
773 	} else if (object->type == ACPI_TYPE_BUFFER) {
774 		len = MIN(buflen, object->buffer.length);
775 		memset(buffer, 0, buflen);
776 		memcpy(buffer, object->buffer.pointer, len);
777 
778 	} else if (object->type == ACPI_TYPE_INTEGER) {
779 		len = MIN(buflen, sizeof(object->integer.value));
780 		memset(buffer, 0, buflen);
781 		memcpy(buffer, &object->integer.value, len);
782 
783 	} else {
784 		pr_warn("Unexpected acpi_object: 0x%x\n", object->type);
785 		ret = -EINVAL;
786 	}
787 
788 	kfree(object);
789 	return ret;
790 }
791 
792 static int sony_nc_int_call(acpi_handle handle, char *name, int *value, int
793 		*result)
794 {
795 	int ret;
796 
797 	if (value) {
798 		u64 v = *value;
799 
800 		ret = sony_nc_buffer_call(handle, name, &v, result,
801 				sizeof(*result));
802 	} else {
803 		ret =  sony_nc_buffer_call(handle, name, NULL, result,
804 				sizeof(*result));
805 	}
806 	return ret;
807 }
808 
809 struct sony_nc_handles {
810 	u16 cap[0x10];
811 	struct device_attribute devattr;
812 };
813 
814 static struct sony_nc_handles *handles;
815 
816 static ssize_t sony_nc_handles_show(struct device *dev,
817 		struct device_attribute *attr, char *buffer)
818 {
819 	ssize_t len = 0;
820 	int i;
821 
822 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
823 		len += sysfs_emit_at(buffer, len, "0x%.4x ", handles->cap[i]);
824 	}
825 	len += sysfs_emit_at(buffer, len, "\n");
826 
827 	return len;
828 }
829 
830 static int sony_nc_handles_setup(struct platform_device *pd)
831 {
832 	int i, r, result, arg;
833 
834 	handles = kzalloc(sizeof(*handles), GFP_KERNEL);
835 	if (!handles)
836 		return -ENOMEM;
837 
838 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
839 		arg = i + 0x20;
840 		r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
841 					&result);
842 		if (!r) {
843 			dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
844 					result, i);
845 			handles->cap[i] = result;
846 		}
847 	}
848 
849 	if (debug) {
850 		sysfs_attr_init(&handles->devattr.attr);
851 		handles->devattr.attr.name = "handles";
852 		handles->devattr.attr.mode = S_IRUGO;
853 		handles->devattr.show = sony_nc_handles_show;
854 
855 		/* allow reading capabilities via sysfs */
856 		if (device_create_file(&pd->dev, &handles->devattr)) {
857 			kfree(handles);
858 			handles = NULL;
859 			return -1;
860 		}
861 	}
862 
863 	return 0;
864 }
865 
866 static int sony_nc_handles_cleanup(struct platform_device *pd)
867 {
868 	if (handles) {
869 		if (debug)
870 			device_remove_file(&pd->dev, &handles->devattr);
871 		kfree(handles);
872 		handles = NULL;
873 	}
874 	return 0;
875 }
876 
877 static int sony_find_snc_handle(int handle)
878 {
879 	int i;
880 
881 	/* not initialized yet, return early */
882 	if (!handles || !handle)
883 		return -EINVAL;
884 
885 	for (i = 0; i < 0x10; i++) {
886 		if (handles->cap[i] == handle) {
887 			dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
888 					handle, i);
889 			return i;
890 		}
891 	}
892 	dprintk("handle 0x%.4x not found\n", handle);
893 	return -EINVAL;
894 }
895 
896 static int sony_call_snc_handle(int handle, int argument, int *result)
897 {
898 	int arg, ret = 0;
899 	int offset = sony_find_snc_handle(handle);
900 
901 	if (offset < 0)
902 		return offset;
903 
904 	arg = offset | argument;
905 	ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
906 	dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
907 	return ret;
908 }
909 
910 /*
911  * sony_nc_values input/output validate functions
912  */
913 
914 /* brightness_default_validate:
915  *
916  * manipulate input output values to keep consistency with the
917  * backlight framework for which brightness values are 0-based.
918  */
919 static int brightness_default_validate(const int direction, const int value)
920 {
921 	switch (direction) {
922 		case SNC_VALIDATE_OUT:
923 			return value - 1;
924 		case SNC_VALIDATE_IN:
925 			if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
926 				return value + 1;
927 	}
928 	return -EINVAL;
929 }
930 
931 /* boolean_validate:
932  *
933  * on input validate boolean values 0/1, on output just pass the
934  * received value.
935  */
936 static int boolean_validate(const int direction, const int value)
937 {
938 	if (direction == SNC_VALIDATE_IN) {
939 		if (value != 0 && value != 1)
940 			return -EINVAL;
941 	}
942 	return value;
943 }
944 
945 /*
946  * Sysfs show/store common to all sony_nc_values
947  */
948 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
949 			      char *buffer)
950 {
951 	int value, ret = 0;
952 	struct sony_nc_value *item =
953 	    container_of(attr, struct sony_nc_value, devattr);
954 
955 	if (!*item->acpiget)
956 		return -EIO;
957 
958 	ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
959 				&value);
960 	if (ret < 0)
961 		return -EIO;
962 
963 	if (item->validate)
964 		value = item->validate(SNC_VALIDATE_OUT, value);
965 
966 	return sysfs_emit(buffer, "%d\n", value);
967 }
968 
969 static ssize_t sony_nc_sysfs_store(struct device *dev,
970 			       struct device_attribute *attr,
971 			       const char *buffer, size_t count)
972 {
973 	int value;
974 	int ret = 0;
975 	struct sony_nc_value *item =
976 	    container_of(attr, struct sony_nc_value, devattr);
977 
978 	if (!item->acpiset)
979 		return -EIO;
980 
981 	if (count > 31)
982 		return -EINVAL;
983 
984 	if (kstrtoint(buffer, 10, &value))
985 		return -EINVAL;
986 
987 	if (item->validate)
988 		value = item->validate(SNC_VALIDATE_IN, value);
989 
990 	if (value < 0)
991 		return value;
992 
993 	ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
994 			       &value, NULL);
995 	if (ret < 0)
996 		return -EIO;
997 
998 	item->value = value;
999 	item->valid = 1;
1000 	return count;
1001 }
1002 
1003 
1004 /*
1005  * Backlight device
1006  */
1007 struct sony_backlight_props {
1008 	struct backlight_device *dev;
1009 	int			handle;
1010 	int			cmd_base;
1011 	u8			offset;
1012 	u8			maxlvl;
1013 };
1014 static struct sony_backlight_props sony_bl_props;
1015 
1016 static int sony_backlight_update_status(struct backlight_device *bd)
1017 {
1018 	int arg = bd->props.brightness + 1;
1019 	return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1020 }
1021 
1022 static int sony_backlight_get_brightness(struct backlight_device *bd)
1023 {
1024 	int value;
1025 
1026 	if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1027 		return 0;
1028 	/* brightness levels are 1-based, while backlight ones are 0-based */
1029 	return value - 1;
1030 }
1031 
1032 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1033 {
1034 	int result;
1035 	struct sony_backlight_props *sdev =
1036 		(struct sony_backlight_props *)bl_get_data(bd);
1037 
1038 	sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1039 
1040 	return (result & 0xff) - sdev->offset;
1041 }
1042 
1043 static int sony_nc_update_status_ng(struct backlight_device *bd)
1044 {
1045 	int value, result;
1046 	struct sony_backlight_props *sdev =
1047 		(struct sony_backlight_props *)bl_get_data(bd);
1048 
1049 	value = bd->props.brightness + sdev->offset;
1050 	if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1051 				&result))
1052 		return -EIO;
1053 
1054 	return value;
1055 }
1056 
1057 static const struct backlight_ops sony_backlight_ops = {
1058 	.options = BL_CORE_SUSPENDRESUME,
1059 	.update_status = sony_backlight_update_status,
1060 	.get_brightness = sony_backlight_get_brightness,
1061 };
1062 static const struct backlight_ops sony_backlight_ng_ops = {
1063 	.options = BL_CORE_SUSPENDRESUME,
1064 	.update_status = sony_nc_update_status_ng,
1065 	.get_brightness = sony_nc_get_brightness_ng,
1066 };
1067 
1068 /*
1069  * New SNC-only Vaios event mapping to driver known keys
1070  */
1071 struct sony_nc_event {
1072 	u8	data;
1073 	u8	event;
1074 };
1075 
1076 static struct sony_nc_event sony_100_events[] = {
1077 	{ 0x90, SONYPI_EVENT_PKEY_P1 },
1078 	{ 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1079 	{ 0x91, SONYPI_EVENT_PKEY_P2 },
1080 	{ 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1081 	{ 0x81, SONYPI_EVENT_FNKEY_F1 },
1082 	{ 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1083 	{ 0x82, SONYPI_EVENT_FNKEY_F2 },
1084 	{ 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1085 	{ 0x83, SONYPI_EVENT_FNKEY_F3 },
1086 	{ 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1087 	{ 0x84, SONYPI_EVENT_FNKEY_F4 },
1088 	{ 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1089 	{ 0x85, SONYPI_EVENT_FNKEY_F5 },
1090 	{ 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1091 	{ 0x86, SONYPI_EVENT_FNKEY_F6 },
1092 	{ 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1093 	{ 0x87, SONYPI_EVENT_FNKEY_F7 },
1094 	{ 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1095 	{ 0x88, SONYPI_EVENT_FNKEY_F8 },
1096 	{ 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1097 	{ 0x89, SONYPI_EVENT_FNKEY_F9 },
1098 	{ 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1099 	{ 0x8A, SONYPI_EVENT_FNKEY_F10 },
1100 	{ 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1101 	{ 0x8B, SONYPI_EVENT_FNKEY_F11 },
1102 	{ 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1103 	{ 0x8C, SONYPI_EVENT_FNKEY_F12 },
1104 	{ 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1105 	{ 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1106 	{ 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1107 	{ 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1108 	{ 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1109 	{ 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1110 	{ 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1111 	{ 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1112 	{ 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1113 	{ 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1114 	{ 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1115 	{ 0xa6, SONYPI_EVENT_HELP_PRESSED },
1116 	{ 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117 	{ 0xa8, SONYPI_EVENT_FNKEY_1 },
1118 	{ 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119 	{ 0, 0 },
1120 };
1121 
1122 static struct sony_nc_event sony_127_events[] = {
1123 	{ 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1124 	{ 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1125 	{ 0x82, SONYPI_EVENT_PKEY_P1 },
1126 	{ 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1127 	{ 0x83, SONYPI_EVENT_PKEY_P2 },
1128 	{ 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1129 	{ 0x84, SONYPI_EVENT_PKEY_P3 },
1130 	{ 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1131 	{ 0x85, SONYPI_EVENT_PKEY_P4 },
1132 	{ 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133 	{ 0x86, SONYPI_EVENT_PKEY_P5 },
1134 	{ 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135 	{ 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1136 	{ 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137 	{ 0, 0 },
1138 };
1139 
1140 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1141 {
1142 	int ret = -EINVAL;
1143 	unsigned int result = 0;
1144 	struct sony_nc_event *key_event;
1145 
1146 	if (sony_call_snc_handle(handle, 0x200, &result)) {
1147 		dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1148 				event);
1149 		return -EINVAL;
1150 	}
1151 
1152 	result &= 0xFF;
1153 
1154 	if (handle == 0x0100)
1155 		key_event = sony_100_events;
1156 	else
1157 		key_event = sony_127_events;
1158 
1159 	for (; key_event->data; key_event++) {
1160 		if (key_event->data == result) {
1161 			ret = key_event->event;
1162 			break;
1163 		}
1164 	}
1165 
1166 	if (!key_event->data)
1167 		pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1168 				event, result, handle);
1169 
1170 	return ret;
1171 }
1172 
1173 /*
1174  * ACPI callbacks
1175  */
1176 enum event_types {
1177 	HOTKEY = 1,
1178 	KILLSWITCH,
1179 	GFX_SWITCH
1180 };
1181 static void sony_nc_notify(struct acpi_device *device, u32 event)
1182 {
1183 	u32 real_ev = event;
1184 	u8 ev_type = 0;
1185 	int ret;
1186 
1187 	dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1188 
1189 	if (event >= 0x90) {
1190 		unsigned int result = 0;
1191 		unsigned int arg = 0;
1192 		unsigned int handle = 0;
1193 		unsigned int offset = event - 0x90;
1194 
1195 		if (offset >= ARRAY_SIZE(handles->cap)) {
1196 			pr_err("Event 0x%x outside of capabilities list\n",
1197 					event);
1198 			return;
1199 		}
1200 		handle = handles->cap[offset];
1201 
1202 		/* list of handles known for generating events */
1203 		switch (handle) {
1204 		/* hotkey event */
1205 		case 0x0100:
1206 		case 0x0127:
1207 			ev_type = HOTKEY;
1208 			ret = sony_nc_hotkeys_decode(event, handle);
1209 
1210 			if (ret > 0) {
1211 				sony_laptop_report_input_event(ret);
1212 				real_ev = ret;
1213 			}
1214 
1215 			break;
1216 
1217 		/* wlan switch */
1218 		case 0x0124:
1219 		case 0x0135:
1220 			/* events on this handle are reported when the
1221 			 * switch changes position or for battery
1222 			 * events. We'll notify both of them but only
1223 			 * update the rfkill device status when the
1224 			 * switch is moved.
1225 			 */
1226 			ev_type = KILLSWITCH;
1227 			sony_call_snc_handle(handle, 0x0100, &result);
1228 			real_ev = result & 0x03;
1229 
1230 			/* hw switch event */
1231 			if (real_ev == 1)
1232 				sony_nc_rfkill_update();
1233 
1234 			break;
1235 
1236 		case 0x0128:
1237 		case 0x0146:
1238 			/* Hybrid GFX switching */
1239 			sony_call_snc_handle(handle, 0x0000, &result);
1240 			dprintk("GFX switch event received (reason: %s)\n",
1241 					(result == 0x1) ? "switch change" :
1242 					(result == 0x2) ? "output switch" :
1243 					(result == 0x3) ? "output switch" :
1244 					"");
1245 
1246 			ev_type = GFX_SWITCH;
1247 			real_ev = __sony_nc_gfx_switch_status_get();
1248 			break;
1249 
1250 		case 0x015B:
1251 			/* Hybrid GFX switching SVS151290S */
1252 			ev_type = GFX_SWITCH;
1253 			real_ev = __sony_nc_gfx_switch_status_get();
1254 			break;
1255 		default:
1256 			dprintk("Unknown event 0x%x for handle 0x%x\n",
1257 					event, handle);
1258 			break;
1259 		}
1260 
1261 		/* clear the event (and the event reason when present) */
1262 		arg = 1 << offset;
1263 		sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1264 
1265 	} else {
1266 		/* old style event */
1267 		ev_type = HOTKEY;
1268 		sony_laptop_report_input_event(real_ev);
1269 	}
1270 	acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1271 			dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1272 }
1273 
1274 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1275 				      void *context, void **return_value)
1276 {
1277 	struct acpi_device_info *info;
1278 
1279 	if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1280 		pr_warn("method: name: %4.4s, args %X\n",
1281 			(char *)&info->name, info->param_count);
1282 
1283 		kfree(info);
1284 	}
1285 
1286 	return AE_OK;
1287 }
1288 
1289 /*
1290  * ACPI device
1291  */
1292 static void sony_nc_function_setup(struct acpi_device *device,
1293 		struct platform_device *pf_device)
1294 {
1295 	unsigned int i, result, bitmask, arg;
1296 
1297 	if (!handles)
1298 		return;
1299 
1300 	/* setup found handles here */
1301 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1302 		unsigned int handle = handles->cap[i];
1303 
1304 		if (!handle)
1305 			continue;
1306 
1307 		dprintk("setting up handle 0x%.4x\n", handle);
1308 
1309 		switch (handle) {
1310 		case 0x0100:
1311 		case 0x0101:
1312 		case 0x0127:
1313 			/* setup hotkeys */
1314 			sony_call_snc_handle(handle, 0, &result);
1315 			break;
1316 		case 0x0102:
1317 			/* setup hotkeys */
1318 			sony_call_snc_handle(handle, 0x100, &result);
1319 			break;
1320 		case 0x0105:
1321 		case 0x0148:
1322 			/* touchpad enable/disable */
1323 			result = sony_nc_touchpad_setup(pf_device, handle);
1324 			if (result)
1325 				pr_err("couldn't set up touchpad control function (%d)\n",
1326 						result);
1327 			break;
1328 		case 0x0115:
1329 		case 0x0136:
1330 		case 0x013f:
1331 			result = sony_nc_battery_care_setup(pf_device, handle);
1332 			if (result)
1333 				pr_err("couldn't set up battery care function (%d)\n",
1334 						result);
1335 			break;
1336 		case 0x0119:
1337 		case 0x015D:
1338 			result = sony_nc_lid_resume_setup(pf_device, handle);
1339 			if (result)
1340 				pr_err("couldn't set up lid resume function (%d)\n",
1341 						result);
1342 			break;
1343 		case 0x0122:
1344 			result = sony_nc_thermal_setup(pf_device);
1345 			if (result)
1346 				pr_err("couldn't set up thermal profile function (%d)\n",
1347 						result);
1348 			break;
1349 		case 0x0128:
1350 		case 0x0146:
1351 		case 0x015B:
1352 			result = sony_nc_gfx_switch_setup(pf_device, handle);
1353 			if (result)
1354 				pr_err("couldn't set up GFX Switch status (%d)\n",
1355 						result);
1356 			break;
1357 		case 0x0131:
1358 			result = sony_nc_highspeed_charging_setup(pf_device);
1359 			if (result)
1360 				pr_err("couldn't set up high speed charging function (%d)\n",
1361 				       result);
1362 			break;
1363 		case 0x0124:
1364 		case 0x0135:
1365 			result = sony_nc_rfkill_setup(device, handle);
1366 			if (result)
1367 				pr_err("couldn't set up rfkill support (%d)\n",
1368 						result);
1369 			break;
1370 		case 0x0137:
1371 		case 0x0143:
1372 		case 0x014b:
1373 		case 0x014c:
1374 		case 0x0153:
1375 		case 0x0163:
1376 			result = sony_nc_kbd_backlight_setup(pf_device, handle);
1377 			if (result)
1378 				pr_err("couldn't set up keyboard backlight function (%d)\n",
1379 						result);
1380 			break;
1381 		case 0x0121:
1382 			result = sony_nc_lowbatt_setup(pf_device);
1383 			if (result)
1384 				pr_err("couldn't set up low battery function (%d)\n",
1385 				       result);
1386 			break;
1387 		case 0x0149:
1388 			result = sony_nc_fanspeed_setup(pf_device);
1389 			if (result)
1390 				pr_err("couldn't set up fan speed function (%d)\n",
1391 				       result);
1392 			break;
1393 		case 0x0155:
1394 			result = sony_nc_usb_charge_setup(pf_device);
1395 			if (result)
1396 				pr_err("couldn't set up USB charge support (%d)\n",
1397 						result);
1398 			break;
1399 		case 0x011D:
1400 			result = sony_nc_panelid_setup(pf_device);
1401 			if (result)
1402 				pr_err("couldn't set up panel ID function (%d)\n",
1403 				       result);
1404 			break;
1405 		case 0x0168:
1406 			result = sony_nc_smart_conn_setup(pf_device);
1407 			if (result)
1408 				pr_err("couldn't set up smart connect support (%d)\n",
1409 						result);
1410 			break;
1411 		default:
1412 			continue;
1413 		}
1414 	}
1415 
1416 	/* Enable all events */
1417 	arg = 0x10;
1418 	if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1419 		sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1420 				&result);
1421 }
1422 
1423 static void sony_nc_function_cleanup(struct platform_device *pd)
1424 {
1425 	unsigned int i, result, bitmask, handle;
1426 
1427 	if (!handles)
1428 		return;
1429 
1430 	/* get enabled events and disable them */
1431 	sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1432 	sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1433 
1434 	/* cleanup handles here */
1435 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1436 
1437 		handle = handles->cap[i];
1438 
1439 		if (!handle)
1440 			continue;
1441 
1442 		switch (handle) {
1443 		case 0x0105:
1444 		case 0x0148:
1445 			sony_nc_touchpad_cleanup(pd);
1446 			break;
1447 		case 0x0115:
1448 		case 0x0136:
1449 		case 0x013f:
1450 			sony_nc_battery_care_cleanup(pd);
1451 			break;
1452 		case 0x0119:
1453 		case 0x015D:
1454 			sony_nc_lid_resume_cleanup(pd);
1455 			break;
1456 		case 0x0122:
1457 			sony_nc_thermal_cleanup(pd);
1458 			break;
1459 		case 0x0128:
1460 		case 0x0146:
1461 		case 0x015B:
1462 			sony_nc_gfx_switch_cleanup(pd);
1463 			break;
1464 		case 0x0131:
1465 			sony_nc_highspeed_charging_cleanup(pd);
1466 			break;
1467 		case 0x0124:
1468 		case 0x0135:
1469 			sony_nc_rfkill_cleanup();
1470 			break;
1471 		case 0x0137:
1472 		case 0x0143:
1473 		case 0x014b:
1474 		case 0x014c:
1475 		case 0x0153:
1476 		case 0x0163:
1477 			sony_nc_kbd_backlight_cleanup(pd, handle);
1478 			break;
1479 		case 0x0121:
1480 			sony_nc_lowbatt_cleanup(pd);
1481 			break;
1482 		case 0x0149:
1483 			sony_nc_fanspeed_cleanup(pd);
1484 			break;
1485 		case 0x0155:
1486 			sony_nc_usb_charge_cleanup(pd);
1487 			break;
1488 		case 0x011D:
1489 			sony_nc_panelid_cleanup(pd);
1490 			break;
1491 		case 0x0168:
1492 			sony_nc_smart_conn_cleanup(pd);
1493 			break;
1494 		default:
1495 			continue;
1496 		}
1497 	}
1498 
1499 	/* finally cleanup the handles list */
1500 	sony_nc_handles_cleanup(pd);
1501 }
1502 
1503 #ifdef CONFIG_PM_SLEEP
1504 static void sony_nc_function_resume(void)
1505 {
1506 	unsigned int i, result, bitmask, arg;
1507 
1508 	dprintk("Resuming SNC device\n");
1509 
1510 	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1511 		unsigned int handle = handles->cap[i];
1512 
1513 		if (!handle)
1514 			continue;
1515 
1516 		switch (handle) {
1517 		case 0x0100:
1518 		case 0x0101:
1519 		case 0x0127:
1520 			/* re-enable hotkeys */
1521 			sony_call_snc_handle(handle, 0, &result);
1522 			break;
1523 		case 0x0102:
1524 			/* re-enable hotkeys */
1525 			sony_call_snc_handle(handle, 0x100, &result);
1526 			break;
1527 		case 0x0122:
1528 			sony_nc_thermal_resume();
1529 			break;
1530 		case 0x0124:
1531 		case 0x0135:
1532 			sony_nc_rfkill_update();
1533 			break;
1534 		default:
1535 			continue;
1536 		}
1537 	}
1538 
1539 	/* Enable all events */
1540 	arg = 0x10;
1541 	if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1542 		sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1543 				&result);
1544 }
1545 
1546 static int sony_nc_resume(struct device *dev)
1547 {
1548 	struct sony_nc_value *item;
1549 
1550 	for (item = sony_nc_values; item->name; item++) {
1551 		int ret;
1552 
1553 		if (!item->valid)
1554 			continue;
1555 		ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1556 				       &item->value, NULL);
1557 		if (ret < 0) {
1558 			pr_err("%s: %d\n", __func__, ret);
1559 			break;
1560 		}
1561 	}
1562 
1563 	if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1564 		int arg = 1;
1565 		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1566 			dprintk("ECON Method failed\n");
1567 	}
1568 
1569 	if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1570 		sony_nc_function_resume();
1571 
1572 	return 0;
1573 }
1574 #endif
1575 
1576 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1577 
1578 static void sony_nc_rfkill_cleanup(void)
1579 {
1580 	int i;
1581 
1582 	for (i = 0; i < N_SONY_RFKILL; i++) {
1583 		if (sony_rfkill_devices[i]) {
1584 			rfkill_unregister(sony_rfkill_devices[i]);
1585 			rfkill_destroy(sony_rfkill_devices[i]);
1586 		}
1587 	}
1588 }
1589 
1590 static int sony_nc_rfkill_set(void *data, bool blocked)
1591 {
1592 	int result;
1593 	int argument = sony_rfkill_address[(long) data] + 0x100;
1594 
1595 	if (!blocked)
1596 		argument |= 0x070000;
1597 
1598 	return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1599 }
1600 
1601 static const struct rfkill_ops sony_rfkill_ops = {
1602 	.set_block = sony_nc_rfkill_set,
1603 };
1604 
1605 static int sony_nc_setup_rfkill(struct acpi_device *device,
1606 				enum sony_nc_rfkill nc_type)
1607 {
1608 	int err;
1609 	struct rfkill *rfk;
1610 	enum rfkill_type type;
1611 	const char *name;
1612 	int result;
1613 	bool hwblock, swblock;
1614 
1615 	switch (nc_type) {
1616 	case SONY_WIFI:
1617 		type = RFKILL_TYPE_WLAN;
1618 		name = "sony-wifi";
1619 		break;
1620 	case SONY_BLUETOOTH:
1621 		type = RFKILL_TYPE_BLUETOOTH;
1622 		name = "sony-bluetooth";
1623 		break;
1624 	case SONY_WWAN:
1625 		type = RFKILL_TYPE_WWAN;
1626 		name = "sony-wwan";
1627 		break;
1628 	case SONY_WIMAX:
1629 		type = RFKILL_TYPE_WIMAX;
1630 		name = "sony-wimax";
1631 		break;
1632 	default:
1633 		return -EINVAL;
1634 	}
1635 
1636 	rfk = rfkill_alloc(name, &device->dev, type,
1637 			   &sony_rfkill_ops, (void *)nc_type);
1638 	if (!rfk)
1639 		return -ENOMEM;
1640 
1641 	err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1642 	if (err < 0) {
1643 		rfkill_destroy(rfk);
1644 		return err;
1645 	}
1646 	hwblock = !(result & 0x1);
1647 
1648 	err = sony_call_snc_handle(sony_rfkill_handle,
1649 				   sony_rfkill_address[nc_type],
1650 				   &result);
1651 	if (err < 0) {
1652 		rfkill_destroy(rfk);
1653 		return err;
1654 	}
1655 	swblock = !(result & 0x2);
1656 
1657 	rfkill_init_sw_state(rfk, swblock);
1658 	rfkill_set_hw_state(rfk, hwblock);
1659 
1660 	err = rfkill_register(rfk);
1661 	if (err) {
1662 		rfkill_destroy(rfk);
1663 		return err;
1664 	}
1665 	sony_rfkill_devices[nc_type] = rfk;
1666 	return err;
1667 }
1668 
1669 static void sony_nc_rfkill_update(void)
1670 {
1671 	enum sony_nc_rfkill i;
1672 	int result;
1673 	bool hwblock;
1674 
1675 	sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1676 	hwblock = !(result & 0x1);
1677 
1678 	for (i = 0; i < N_SONY_RFKILL; i++) {
1679 		int argument = sony_rfkill_address[i];
1680 
1681 		if (!sony_rfkill_devices[i])
1682 			continue;
1683 
1684 		if (hwblock) {
1685 			if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1686 				/* we already know we're blocked */
1687 			}
1688 			continue;
1689 		}
1690 
1691 		sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1692 		rfkill_set_states(sony_rfkill_devices[i],
1693 				  !(result & 0x2), false);
1694 	}
1695 }
1696 
1697 static int sony_nc_rfkill_setup(struct acpi_device *device,
1698 		unsigned int handle)
1699 {
1700 	u64 offset;
1701 	int i;
1702 	unsigned char buffer[32] = { 0 };
1703 
1704 	offset = sony_find_snc_handle(handle);
1705 	sony_rfkill_handle = handle;
1706 
1707 	i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1708 			32);
1709 	if (i < 0)
1710 		return i;
1711 
1712 	/* The buffer is filled with magic numbers describing the devices
1713 	 * available, 0xff terminates the enumeration.
1714 	 * Known codes:
1715 	 *	0x00 WLAN
1716 	 *	0x10 BLUETOOTH
1717 	 *	0x20 WWAN GPRS-EDGE
1718 	 *	0x21 WWAN HSDPA
1719 	 *	0x22 WWAN EV-DO
1720 	 *	0x23 WWAN GPS
1721 	 *	0x25 Gobi WWAN no GPS
1722 	 *	0x26 Gobi WWAN + GPS
1723 	 *	0x28 Gobi WWAN no GPS
1724 	 *	0x29 Gobi WWAN + GPS
1725 	 *	0x30 WIMAX
1726 	 *	0x50 Gobi WWAN no GPS
1727 	 *	0x51 Gobi WWAN + GPS
1728 	 *	0x70 no SIM card slot
1729 	 *	0x71 SIM card slot
1730 	 */
1731 	for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1732 
1733 		if (buffer[i] == 0xff)
1734 			break;
1735 
1736 		dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1737 
1738 		if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1739 			sony_nc_setup_rfkill(device, SONY_WIFI);
1740 
1741 		if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1742 			sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1743 
1744 		if (((0xf0 & buffer[i]) == 0x20 ||
1745 					(0xf0 & buffer[i]) == 0x50) &&
1746 				!sony_rfkill_devices[SONY_WWAN])
1747 			sony_nc_setup_rfkill(device, SONY_WWAN);
1748 
1749 		if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1750 			sony_nc_setup_rfkill(device, SONY_WIMAX);
1751 	}
1752 	return 0;
1753 }
1754 
1755 /* Keyboard backlight feature */
1756 struct kbd_backlight {
1757 	unsigned int handle;
1758 	unsigned int base;
1759 	unsigned int mode;
1760 	unsigned int timeout;
1761 	unsigned int has_timeout;
1762 	struct device_attribute mode_attr;
1763 	struct device_attribute timeout_attr;
1764 };
1765 
1766 static struct kbd_backlight *kbdbl_ctl;
1767 
1768 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1769 {
1770 	int result;
1771 
1772 	if (value > 2)
1773 		return -EINVAL;
1774 
1775 	if (sony_call_snc_handle(kbdbl_ctl->handle,
1776 				(value << 0x10) | (kbdbl_ctl->base), &result))
1777 		return -EIO;
1778 
1779 	/* Try to turn the light on/off immediately */
1780 	if (value != 1)
1781 		sony_call_snc_handle(kbdbl_ctl->handle,
1782 				(value << 0x0f) | (kbdbl_ctl->base + 0x100),
1783 				&result);
1784 
1785 	kbdbl_ctl->mode = value;
1786 
1787 	return 0;
1788 }
1789 
1790 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1791 		struct device_attribute *attr,
1792 		const char *buffer, size_t count)
1793 {
1794 	int ret = 0;
1795 	unsigned long value;
1796 
1797 	if (count > 31)
1798 		return -EINVAL;
1799 
1800 	if (kstrtoul(buffer, 10, &value))
1801 		return -EINVAL;
1802 
1803 	ret = __sony_nc_kbd_backlight_mode_set(value);
1804 	if (ret < 0)
1805 		return ret;
1806 
1807 	return count;
1808 }
1809 
1810 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1811 		struct device_attribute *attr, char *buffer)
1812 {
1813 	return sysfs_emit(buffer, "%d\n", kbdbl_ctl->mode);
1814 }
1815 
1816 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1817 {
1818 	int result;
1819 
1820 	if (value > 3)
1821 		return -EINVAL;
1822 
1823 	if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1824 				(kbdbl_ctl->base + 0x200), &result))
1825 		return -EIO;
1826 
1827 	kbdbl_ctl->timeout = value;
1828 
1829 	return 0;
1830 }
1831 
1832 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1833 		struct device_attribute *attr,
1834 		const char *buffer, size_t count)
1835 {
1836 	int ret = 0;
1837 	unsigned long value;
1838 
1839 	if (count > 31)
1840 		return -EINVAL;
1841 
1842 	if (kstrtoul(buffer, 10, &value))
1843 		return -EINVAL;
1844 
1845 	ret = __sony_nc_kbd_backlight_timeout_set(value);
1846 	if (ret < 0)
1847 		return ret;
1848 
1849 	return count;
1850 }
1851 
1852 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1853 		struct device_attribute *attr, char *buffer)
1854 {
1855 	return sysfs_emit(buffer, "%d\n", kbdbl_ctl->timeout);
1856 }
1857 
1858 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1859 		unsigned int handle)
1860 {
1861 	int result;
1862 	int probe_base = 0;
1863 	int ctl_base = 0;
1864 	int ret = 0;
1865 
1866 	if (kbdbl_ctl) {
1867 		pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1868 				handle, kbdbl_ctl->handle);
1869 		return -EBUSY;
1870 	}
1871 
1872 	/* verify the kbd backlight presence, some of these handles are not used
1873 	 * for keyboard backlight only
1874 	 */
1875 	switch (handle) {
1876 	case 0x0153:
1877 		probe_base = 0x0;
1878 		ctl_base = 0x0;
1879 		break;
1880 	case 0x0137:
1881 		probe_base = 0x0B00;
1882 		ctl_base = 0x0C00;
1883 		break;
1884 	default:
1885 		probe_base = 0x0100;
1886 		ctl_base = 0x4000;
1887 		break;
1888 	}
1889 
1890 	/*
1891 	 * Only probe if there is a separate probe_base, otherwise the probe call
1892 	 * is equivalent to __sony_nc_kbd_backlight_mode_set(0), resulting in
1893 	 * the keyboard backlight being turned off.
1894 	 */
1895 	if (probe_base) {
1896 		ret = sony_call_snc_handle(handle, probe_base, &result);
1897 		if (ret)
1898 			return ret;
1899 
1900 		if ((handle == 0x0137 && !(result & 0x02)) ||
1901 				!(result & 0x01)) {
1902 			dprintk("no backlight keyboard found\n");
1903 			return 0;
1904 		}
1905 	}
1906 
1907 	kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1908 	if (!kbdbl_ctl)
1909 		return -ENOMEM;
1910 
1911 	kbdbl_ctl->mode = kbd_backlight;
1912 	kbdbl_ctl->timeout = kbd_backlight_timeout;
1913 	kbdbl_ctl->handle = handle;
1914 	kbdbl_ctl->base = ctl_base;
1915 	/* Some models do not allow timeout control */
1916 	kbdbl_ctl->has_timeout = handle != 0x0153;
1917 
1918 	sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1919 	kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1920 	kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1921 	kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1922 	kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1923 
1924 	ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1925 	if (ret)
1926 		goto outkzalloc;
1927 
1928 	__sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1929 
1930 	if (kbdbl_ctl->has_timeout) {
1931 		sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1932 		kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1933 		kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1934 		kbdbl_ctl->timeout_attr.show =
1935 			sony_nc_kbd_backlight_timeout_show;
1936 		kbdbl_ctl->timeout_attr.store =
1937 			sony_nc_kbd_backlight_timeout_store;
1938 
1939 		ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1940 		if (ret)
1941 			goto outmode;
1942 
1943 		__sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1944 	}
1945 
1946 
1947 	return 0;
1948 
1949 outmode:
1950 	device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1951 outkzalloc:
1952 	kfree(kbdbl_ctl);
1953 	kbdbl_ctl = NULL;
1954 	return ret;
1955 }
1956 
1957 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1958 		unsigned int handle)
1959 {
1960 	if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1961 		device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1962 		if (kbdbl_ctl->has_timeout)
1963 			device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1964 		kfree(kbdbl_ctl);
1965 		kbdbl_ctl = NULL;
1966 	}
1967 }
1968 
1969 struct battery_care_control {
1970 	struct device_attribute attrs[2];
1971 	unsigned int handle;
1972 };
1973 static struct battery_care_control *bcare_ctl;
1974 
1975 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1976 		struct device_attribute *attr,
1977 		const char *buffer, size_t count)
1978 {
1979 	unsigned int result, cmd;
1980 	unsigned long value;
1981 
1982 	if (count > 31)
1983 		return -EINVAL;
1984 
1985 	if (kstrtoul(buffer, 10, &value))
1986 		return -EINVAL;
1987 
1988 	/*  limit values (2 bits):
1989 	 *  00 - none
1990 	 *  01 - 80%
1991 	 *  10 - 50%
1992 	 *  11 - 100%
1993 	 *
1994 	 *  bit 0: 0 disable BCL, 1 enable BCL
1995 	 *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1996 	 *  bits 2,3: reserved
1997 	 *  bits 4,5: store the limit into the EC
1998 	 *  bits 6,7: store the limit into the battery
1999 	 */
2000 	cmd = 0;
2001 
2002 	if (value > 0) {
2003 		if (value <= 50)
2004 			cmd = 0x20;
2005 
2006 		else if (value <= 80)
2007 			cmd = 0x10;
2008 
2009 		else if (value <= 100)
2010 			cmd = 0x30;
2011 
2012 		else
2013 			return -EINVAL;
2014 
2015 		/*
2016 		 * handle 0x0115 should allow storing on battery too;
2017 		 * handle 0x0136 same as 0x0115 + health status;
2018 		 * handle 0x013f, same as 0x0136 but no storing on the battery
2019 		 */
2020 		if (bcare_ctl->handle != 0x013f)
2021 			cmd = cmd | (cmd << 2);
2022 
2023 		cmd = (cmd | 0x1) << 0x10;
2024 	}
2025 
2026 	if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2027 		return -EIO;
2028 
2029 	return count;
2030 }
2031 
2032 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2033 		struct device_attribute *attr, char *buffer)
2034 {
2035 	unsigned int result, status;
2036 
2037 	if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2038 		return -EIO;
2039 
2040 	status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2041 	switch (status) {
2042 	case 1:
2043 		status = 80;
2044 		break;
2045 	case 2:
2046 		status = 50;
2047 		break;
2048 	case 3:
2049 		status = 100;
2050 		break;
2051 	default:
2052 		status = 0;
2053 		break;
2054 	}
2055 
2056 	return sysfs_emit(buffer, "%d\n", status);
2057 }
2058 
2059 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2060 		struct device_attribute *attr, char *buffer)
2061 {
2062 	unsigned int health;
2063 
2064 	if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2065 		return -EIO;
2066 
2067 	return sysfs_emit(buffer, "%d\n", health & 0xff);
2068 }
2069 
2070 static int sony_nc_battery_care_setup(struct platform_device *pd,
2071 		unsigned int handle)
2072 {
2073 	int ret = 0;
2074 
2075 	bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2076 	if (!bcare_ctl)
2077 		return -ENOMEM;
2078 
2079 	bcare_ctl->handle = handle;
2080 
2081 	sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2082 	bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2083 	bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2084 	bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2085 	bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2086 
2087 	ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2088 	if (ret)
2089 		goto outkzalloc;
2090 
2091 	/* 0x0115 is for models with no health reporting capability */
2092 	if (handle == 0x0115)
2093 		return 0;
2094 
2095 	sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2096 	bcare_ctl->attrs[1].attr.name = "battery_care_health";
2097 	bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2098 	bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2099 
2100 	ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2101 	if (ret)
2102 		goto outlimiter;
2103 
2104 	return 0;
2105 
2106 outlimiter:
2107 	device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2108 
2109 outkzalloc:
2110 	kfree(bcare_ctl);
2111 	bcare_ctl = NULL;
2112 
2113 	return ret;
2114 }
2115 
2116 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2117 {
2118 	if (bcare_ctl) {
2119 		device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2120 		if (bcare_ctl->handle != 0x0115)
2121 			device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2122 
2123 		kfree(bcare_ctl);
2124 		bcare_ctl = NULL;
2125 	}
2126 }
2127 
2128 struct snc_thermal_ctrl {
2129 	unsigned int mode;
2130 	unsigned int profiles;
2131 	struct device_attribute mode_attr;
2132 	struct device_attribute profiles_attr;
2133 };
2134 static struct snc_thermal_ctrl *th_handle;
2135 
2136 #define THM_PROFILE_MAX 3
2137 static const char * const snc_thermal_profiles[] = {
2138 	"balanced",
2139 	"silent",
2140 	"performance"
2141 };
2142 
2143 static int sony_nc_thermal_mode_set(unsigned short mode)
2144 {
2145 	unsigned int result;
2146 
2147 	/* the thermal profile seems to be a two bit bitmask:
2148 	 * lsb -> silent
2149 	 * msb -> performance
2150 	 * no bit set is the normal operation and is always valid
2151 	 * Some vaio models only have "balanced" and "performance"
2152 	 */
2153 	if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2154 		return -EINVAL;
2155 
2156 	if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2157 		return -EIO;
2158 
2159 	th_handle->mode = mode;
2160 
2161 	return 0;
2162 }
2163 
2164 static int sony_nc_thermal_mode_get(void)
2165 {
2166 	unsigned int result;
2167 
2168 	if (sony_call_snc_handle(0x0122, 0x0100, &result))
2169 		return -EIO;
2170 
2171 	return result & 0xff;
2172 }
2173 
2174 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2175 		struct device_attribute *attr, char *buffer)
2176 {
2177 	short cnt;
2178 	size_t idx = 0;
2179 
2180 	for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2181 		if (!cnt || (th_handle->profiles & cnt))
2182 			idx += sysfs_emit_at(buffer, idx, "%s ", snc_thermal_profiles[cnt]);
2183 	}
2184 	idx += sysfs_emit_at(buffer, idx, "\n");
2185 
2186 	return idx;
2187 }
2188 
2189 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2190 		struct device_attribute *attr,
2191 		const char *buffer, size_t count)
2192 {
2193 	unsigned short cmd;
2194 	size_t len = count;
2195 
2196 	if (count == 0)
2197 		return -EINVAL;
2198 
2199 	/* skip the newline if present */
2200 	if (buffer[len - 1] == '\n')
2201 		len--;
2202 
2203 	for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2204 		if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2205 			break;
2206 
2207 	if (sony_nc_thermal_mode_set(cmd))
2208 		return -EIO;
2209 
2210 	return count;
2211 }
2212 
2213 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2214 		struct device_attribute *attr, char *buffer)
2215 {
2216 	int mode = sony_nc_thermal_mode_get();
2217 
2218 	if (mode < 0)
2219 		return mode;
2220 
2221 	return sysfs_emit(buffer, "%s\n", snc_thermal_profiles[mode]);
2222 }
2223 
2224 static int sony_nc_thermal_setup(struct platform_device *pd)
2225 {
2226 	int ret = 0;
2227 	th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2228 	if (!th_handle)
2229 		return -ENOMEM;
2230 
2231 	ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2232 	if (ret) {
2233 		pr_warn("couldn't to read the thermal profiles\n");
2234 		goto outkzalloc;
2235 	}
2236 
2237 	ret = sony_nc_thermal_mode_get();
2238 	if (ret < 0) {
2239 		pr_warn("couldn't to read the current thermal profile");
2240 		goto outkzalloc;
2241 	}
2242 	th_handle->mode = ret;
2243 
2244 	sysfs_attr_init(&th_handle->profiles_attr.attr);
2245 	th_handle->profiles_attr.attr.name = "thermal_profiles";
2246 	th_handle->profiles_attr.attr.mode = S_IRUGO;
2247 	th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2248 
2249 	sysfs_attr_init(&th_handle->mode_attr.attr);
2250 	th_handle->mode_attr.attr.name = "thermal_control";
2251 	th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2252 	th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2253 	th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2254 
2255 	ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2256 	if (ret)
2257 		goto outkzalloc;
2258 
2259 	ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2260 	if (ret)
2261 		goto outprofiles;
2262 
2263 	return 0;
2264 
2265 outprofiles:
2266 	device_remove_file(&pd->dev, &th_handle->profiles_attr);
2267 outkzalloc:
2268 	kfree(th_handle);
2269 	th_handle = NULL;
2270 	return ret;
2271 }
2272 
2273 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2274 {
2275 	if (th_handle) {
2276 		device_remove_file(&pd->dev, &th_handle->profiles_attr);
2277 		device_remove_file(&pd->dev, &th_handle->mode_attr);
2278 		kfree(th_handle);
2279 		th_handle = NULL;
2280 	}
2281 }
2282 
2283 #ifdef CONFIG_PM_SLEEP
2284 static void sony_nc_thermal_resume(void)
2285 {
2286 	int status;
2287 
2288 	if (!th_handle)
2289 		return;
2290 
2291 	status = sony_nc_thermal_mode_get();
2292 
2293 	if (status != th_handle->mode)
2294 		sony_nc_thermal_mode_set(th_handle->mode);
2295 }
2296 #endif
2297 
2298 /* resume on LID open */
2299 #define LID_RESUME_S5	0
2300 #define LID_RESUME_S4	1
2301 #define LID_RESUME_S3	2
2302 #define LID_RESUME_MAX	3
2303 struct snc_lid_resume_control {
2304 	struct device_attribute attrs[LID_RESUME_MAX];
2305 	unsigned int status;
2306 	int handle;
2307 };
2308 static struct snc_lid_resume_control *lid_ctl;
2309 
2310 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2311 					struct device_attribute *attr,
2312 					const char *buffer, size_t count)
2313 {
2314 	unsigned int result;
2315 	unsigned long value;
2316 	unsigned int pos = LID_RESUME_S5;
2317 	if (count > 31)
2318 		return -EINVAL;
2319 
2320 	if (kstrtoul(buffer, 10, &value) || value > 1)
2321 		return -EINVAL;
2322 
2323 	/* the value we have to write to SNC is a bitmask:
2324 	 * +--------------+
2325 	 * | S3 | S4 | S5 |
2326 	 * +--------------+
2327 	 *   2    1    0
2328 	 */
2329 	while (pos < LID_RESUME_MAX) {
2330 		if (&lid_ctl->attrs[pos].attr == &attr->attr)
2331 			break;
2332 		pos++;
2333 	}
2334 	if (pos == LID_RESUME_MAX)
2335 		return -EINVAL;
2336 
2337 	if (value)
2338 		value = lid_ctl->status | (1 << pos);
2339 	else
2340 		value = lid_ctl->status & ~(1 << pos);
2341 
2342 	if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2343 				&result))
2344 		return -EIO;
2345 
2346 	lid_ctl->status = value;
2347 
2348 	return count;
2349 }
2350 
2351 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2352 					struct device_attribute *attr,
2353 					char *buffer)
2354 {
2355 	unsigned int pos = LID_RESUME_S5;
2356 
2357 	while (pos < LID_RESUME_MAX) {
2358 		if (&lid_ctl->attrs[pos].attr == &attr->attr)
2359 			return sysfs_emit(buffer, "%d\n",
2360 					(lid_ctl->status >> pos) & 0x01);
2361 		pos++;
2362 	}
2363 	return -EINVAL;
2364 }
2365 
2366 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2367 					unsigned int handle)
2368 {
2369 	unsigned int result;
2370 	int i;
2371 
2372 	if (sony_call_snc_handle(handle, 0x0000, &result))
2373 		return -EIO;
2374 
2375 	lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2376 	if (!lid_ctl)
2377 		return -ENOMEM;
2378 
2379 	lid_ctl->status = result & 0x7;
2380 	lid_ctl->handle = handle;
2381 
2382 	sysfs_attr_init(&lid_ctl->attrs[0].attr);
2383 	lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2384 	lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2385 	lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2386 	lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2387 
2388 	if (handle == 0x0119) {
2389 		sysfs_attr_init(&lid_ctl->attrs[1].attr);
2390 		lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2391 		lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2392 		lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2393 		lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2394 
2395 		sysfs_attr_init(&lid_ctl->attrs[2].attr);
2396 		lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2397 		lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2398 		lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2399 		lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2400 	}
2401 	for (i = 0; i < LID_RESUME_MAX &&
2402 			lid_ctl->attrs[i].attr.name; i++) {
2403 		result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2404 		if (result)
2405 			goto liderror;
2406 	}
2407 
2408 	return 0;
2409 
2410 liderror:
2411 	for (i--; i >= 0; i--)
2412 		device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2413 
2414 	kfree(lid_ctl);
2415 	lid_ctl = NULL;
2416 
2417 	return result;
2418 }
2419 
2420 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2421 {
2422 	int i;
2423 
2424 	if (lid_ctl) {
2425 		for (i = 0; i < LID_RESUME_MAX; i++) {
2426 			if (!lid_ctl->attrs[i].attr.name)
2427 				break;
2428 
2429 			device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2430 		}
2431 
2432 		kfree(lid_ctl);
2433 		lid_ctl = NULL;
2434 	}
2435 }
2436 
2437 /* GFX Switch position */
2438 enum gfx_switch {
2439 	SPEED,
2440 	STAMINA,
2441 	AUTO
2442 };
2443 struct snc_gfx_switch_control {
2444 	struct device_attribute attr;
2445 	unsigned int handle;
2446 };
2447 static struct snc_gfx_switch_control *gfxs_ctl;
2448 
2449 /* returns 0 for speed, 1 for stamina */
2450 static int __sony_nc_gfx_switch_status_get(void)
2451 {
2452 	unsigned int result;
2453 
2454 	if (sony_call_snc_handle(gfxs_ctl->handle,
2455 				gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2456 				&result))
2457 		return -EIO;
2458 
2459 	switch (gfxs_ctl->handle) {
2460 	case 0x0146:
2461 		/* 1: discrete GFX (speed)
2462 		 * 0: integrated GFX (stamina)
2463 		 */
2464 		return result & 0x1 ? SPEED : STAMINA;
2465 	case 0x015B:
2466 		/* 0: discrete GFX (speed)
2467 		 * 1: integrated GFX (stamina)
2468 		 */
2469 		return result & 0x1 ? STAMINA : SPEED;
2470 	case 0x0128:
2471 		/* it's a more elaborated bitmask, for now:
2472 		 * 2: integrated GFX (stamina)
2473 		 * 0: discrete GFX (speed)
2474 		 */
2475 		dprintk("GFX Status: 0x%x\n", result);
2476 		return result & 0x80 ? AUTO :
2477 			result & 0x02 ? STAMINA : SPEED;
2478 	}
2479 	return -EINVAL;
2480 }
2481 
2482 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2483 				       struct device_attribute *attr,
2484 				       char *buffer)
2485 {
2486 	int pos = __sony_nc_gfx_switch_status_get();
2487 
2488 	if (pos < 0)
2489 		return pos;
2490 
2491 	return sysfs_emit(buffer, "%s\n",
2492 					pos == SPEED ? "speed" :
2493 					pos == STAMINA ? "stamina" :
2494 					pos == AUTO ? "auto" : "unknown");
2495 }
2496 
2497 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2498 		unsigned int handle)
2499 {
2500 	unsigned int result;
2501 
2502 	gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2503 	if (!gfxs_ctl)
2504 		return -ENOMEM;
2505 
2506 	gfxs_ctl->handle = handle;
2507 
2508 	sysfs_attr_init(&gfxs_ctl->attr.attr);
2509 	gfxs_ctl->attr.attr.name = "gfx_switch_status";
2510 	gfxs_ctl->attr.attr.mode = S_IRUGO;
2511 	gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2512 
2513 	result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2514 	if (result)
2515 		goto gfxerror;
2516 
2517 	return 0;
2518 
2519 gfxerror:
2520 	kfree(gfxs_ctl);
2521 	gfxs_ctl = NULL;
2522 
2523 	return result;
2524 }
2525 
2526 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2527 {
2528 	if (gfxs_ctl) {
2529 		device_remove_file(&pd->dev, &gfxs_ctl->attr);
2530 
2531 		kfree(gfxs_ctl);
2532 		gfxs_ctl = NULL;
2533 	}
2534 }
2535 
2536 /* High speed charging function */
2537 static struct device_attribute *hsc_handle;
2538 
2539 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2540 		struct device_attribute *attr,
2541 		const char *buffer, size_t count)
2542 {
2543 	unsigned int result;
2544 	unsigned long value;
2545 
2546 	if (count > 31)
2547 		return -EINVAL;
2548 
2549 	if (kstrtoul(buffer, 10, &value) || value > 1)
2550 		return -EINVAL;
2551 
2552 	if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2553 		return -EIO;
2554 
2555 	return count;
2556 }
2557 
2558 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2559 		struct device_attribute *attr, char *buffer)
2560 {
2561 	unsigned int result;
2562 
2563 	if (sony_call_snc_handle(0x0131, 0x0100, &result))
2564 		return -EIO;
2565 
2566 	return sysfs_emit(buffer, "%d\n", result & 0x01);
2567 }
2568 
2569 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2570 {
2571 	unsigned int result;
2572 
2573 	if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2574 		/* some models advertise the handle but have no implementation
2575 		 * for it
2576 		 */
2577 		pr_info("No High Speed Charging capability found\n");
2578 		return 0;
2579 	}
2580 
2581 	hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2582 	if (!hsc_handle)
2583 		return -ENOMEM;
2584 
2585 	sysfs_attr_init(&hsc_handle->attr);
2586 	hsc_handle->attr.name = "battery_highspeed_charging";
2587 	hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2588 	hsc_handle->show = sony_nc_highspeed_charging_show;
2589 	hsc_handle->store = sony_nc_highspeed_charging_store;
2590 
2591 	result = device_create_file(&pd->dev, hsc_handle);
2592 	if (result) {
2593 		kfree(hsc_handle);
2594 		hsc_handle = NULL;
2595 		return result;
2596 	}
2597 
2598 	return 0;
2599 }
2600 
2601 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2602 {
2603 	if (hsc_handle) {
2604 		device_remove_file(&pd->dev, hsc_handle);
2605 		kfree(hsc_handle);
2606 		hsc_handle = NULL;
2607 	}
2608 }
2609 
2610 /* low battery function */
2611 static struct device_attribute *lowbatt_handle;
2612 
2613 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2614 		struct device_attribute *attr,
2615 		const char *buffer, size_t count)
2616 {
2617 	unsigned int result;
2618 	unsigned long value;
2619 
2620 	if (count > 31)
2621 		return -EINVAL;
2622 
2623 	if (kstrtoul(buffer, 10, &value) || value > 1)
2624 		return -EINVAL;
2625 
2626 	if (sony_call_snc_handle(0x0121, value << 8, &result))
2627 		return -EIO;
2628 
2629 	return count;
2630 }
2631 
2632 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2633 		struct device_attribute *attr, char *buffer)
2634 {
2635 	unsigned int result;
2636 
2637 	if (sony_call_snc_handle(0x0121, 0x0200, &result))
2638 		return -EIO;
2639 
2640 	return sysfs_emit(buffer, "%d\n", result & 1);
2641 }
2642 
2643 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2644 {
2645 	unsigned int result;
2646 
2647 	lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2648 	if (!lowbatt_handle)
2649 		return -ENOMEM;
2650 
2651 	sysfs_attr_init(&lowbatt_handle->attr);
2652 	lowbatt_handle->attr.name = "lowbatt_hibernate";
2653 	lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2654 	lowbatt_handle->show = sony_nc_lowbatt_show;
2655 	lowbatt_handle->store = sony_nc_lowbatt_store;
2656 
2657 	result = device_create_file(&pd->dev, lowbatt_handle);
2658 	if (result) {
2659 		kfree(lowbatt_handle);
2660 		lowbatt_handle = NULL;
2661 		return result;
2662 	}
2663 
2664 	return 0;
2665 }
2666 
2667 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2668 {
2669 	if (lowbatt_handle) {
2670 		device_remove_file(&pd->dev, lowbatt_handle);
2671 		kfree(lowbatt_handle);
2672 		lowbatt_handle = NULL;
2673 	}
2674 }
2675 
2676 /* fan speed function */
2677 static struct device_attribute *fan_handle, *hsf_handle;
2678 
2679 static ssize_t sony_nc_hsfan_store(struct device *dev,
2680 		struct device_attribute *attr,
2681 		const char *buffer, size_t count)
2682 {
2683 	unsigned int result;
2684 	unsigned long value;
2685 
2686 	if (count > 31)
2687 		return -EINVAL;
2688 
2689 	if (kstrtoul(buffer, 10, &value) || value > 1)
2690 		return -EINVAL;
2691 
2692 	if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2693 		return -EIO;
2694 
2695 	return count;
2696 }
2697 
2698 static ssize_t sony_nc_hsfan_show(struct device *dev,
2699 		struct device_attribute *attr, char *buffer)
2700 {
2701 	unsigned int result;
2702 
2703 	if (sony_call_snc_handle(0x0149, 0x0100, &result))
2704 		return -EIO;
2705 
2706 	return sysfs_emit(buffer, "%d\n", result & 0x01);
2707 }
2708 
2709 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2710 		struct device_attribute *attr, char *buffer)
2711 {
2712 	unsigned int result;
2713 
2714 	if (sony_call_snc_handle(0x0149, 0x0300, &result))
2715 		return -EIO;
2716 
2717 	return sysfs_emit(buffer, "%d\n", result & 0xff);
2718 }
2719 
2720 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2721 {
2722 	unsigned int result;
2723 
2724 	fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2725 	if (!fan_handle)
2726 		return -ENOMEM;
2727 
2728 	hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2729 	if (!hsf_handle) {
2730 		result = -ENOMEM;
2731 		goto out_hsf_handle_alloc;
2732 	}
2733 
2734 	sysfs_attr_init(&fan_handle->attr);
2735 	fan_handle->attr.name = "fanspeed";
2736 	fan_handle->attr.mode = S_IRUGO;
2737 	fan_handle->show = sony_nc_fanspeed_show;
2738 	fan_handle->store = NULL;
2739 
2740 	sysfs_attr_init(&hsf_handle->attr);
2741 	hsf_handle->attr.name = "fan_forced";
2742 	hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2743 	hsf_handle->show = sony_nc_hsfan_show;
2744 	hsf_handle->store = sony_nc_hsfan_store;
2745 
2746 	result = device_create_file(&pd->dev, fan_handle);
2747 	if (result)
2748 		goto out_fan_handle;
2749 
2750 	result = device_create_file(&pd->dev, hsf_handle);
2751 	if (result)
2752 		goto out_hsf_handle;
2753 
2754 	return 0;
2755 
2756 out_hsf_handle:
2757 	device_remove_file(&pd->dev, fan_handle);
2758 
2759 out_fan_handle:
2760 	kfree(hsf_handle);
2761 	hsf_handle = NULL;
2762 
2763 out_hsf_handle_alloc:
2764 	kfree(fan_handle);
2765 	fan_handle = NULL;
2766 	return result;
2767 }
2768 
2769 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2770 {
2771 	if (fan_handle) {
2772 		device_remove_file(&pd->dev, fan_handle);
2773 		kfree(fan_handle);
2774 		fan_handle = NULL;
2775 	}
2776 	if (hsf_handle) {
2777 		device_remove_file(&pd->dev, hsf_handle);
2778 		kfree(hsf_handle);
2779 		hsf_handle = NULL;
2780 	}
2781 }
2782 
2783 /* USB charge function */
2784 static struct device_attribute *uc_handle;
2785 
2786 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2787 		struct device_attribute *attr,
2788 		const char *buffer, size_t count)
2789 {
2790 	unsigned int result;
2791 	unsigned long value;
2792 
2793 	if (count > 31)
2794 		return -EINVAL;
2795 
2796 	if (kstrtoul(buffer, 10, &value) || value > 1)
2797 		return -EINVAL;
2798 
2799 	if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2800 		return -EIO;
2801 
2802 	return count;
2803 }
2804 
2805 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2806 		struct device_attribute *attr, char *buffer)
2807 {
2808 	unsigned int result;
2809 
2810 	if (sony_call_snc_handle(0x0155, 0x0000, &result))
2811 		return -EIO;
2812 
2813 	return sysfs_emit(buffer, "%d\n", result & 0x01);
2814 }
2815 
2816 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2817 {
2818 	unsigned int result;
2819 
2820 	if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2821 		/* some models advertise the handle but have no implementation
2822 		 * for it
2823 		 */
2824 		pr_info("No USB Charge capability found\n");
2825 		return 0;
2826 	}
2827 
2828 	uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2829 	if (!uc_handle)
2830 		return -ENOMEM;
2831 
2832 	sysfs_attr_init(&uc_handle->attr);
2833 	uc_handle->attr.name = "usb_charge";
2834 	uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2835 	uc_handle->show = sony_nc_usb_charge_show;
2836 	uc_handle->store = sony_nc_usb_charge_store;
2837 
2838 	result = device_create_file(&pd->dev, uc_handle);
2839 	if (result) {
2840 		kfree(uc_handle);
2841 		uc_handle = NULL;
2842 		return result;
2843 	}
2844 
2845 	return 0;
2846 }
2847 
2848 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2849 {
2850 	if (uc_handle) {
2851 		device_remove_file(&pd->dev, uc_handle);
2852 		kfree(uc_handle);
2853 		uc_handle = NULL;
2854 	}
2855 }
2856 
2857 /* Panel ID function */
2858 static struct device_attribute *panel_handle;
2859 
2860 static ssize_t sony_nc_panelid_show(struct device *dev,
2861 		struct device_attribute *attr, char *buffer)
2862 {
2863 	unsigned int result;
2864 
2865 	if (sony_call_snc_handle(0x011D, 0x0000, &result))
2866 		return -EIO;
2867 
2868 	return sysfs_emit(buffer, "%d\n", result);
2869 }
2870 
2871 static int sony_nc_panelid_setup(struct platform_device *pd)
2872 {
2873 	unsigned int result;
2874 
2875 	panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2876 	if (!panel_handle)
2877 		return -ENOMEM;
2878 
2879 	sysfs_attr_init(&panel_handle->attr);
2880 	panel_handle->attr.name = "panel_id";
2881 	panel_handle->attr.mode = S_IRUGO;
2882 	panel_handle->show = sony_nc_panelid_show;
2883 	panel_handle->store = NULL;
2884 
2885 	result = device_create_file(&pd->dev, panel_handle);
2886 	if (result) {
2887 		kfree(panel_handle);
2888 		panel_handle = NULL;
2889 		return result;
2890 	}
2891 
2892 	return 0;
2893 }
2894 
2895 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2896 {
2897 	if (panel_handle) {
2898 		device_remove_file(&pd->dev, panel_handle);
2899 		kfree(panel_handle);
2900 		panel_handle = NULL;
2901 	}
2902 }
2903 
2904 /* smart connect function */
2905 static struct device_attribute *sc_handle;
2906 
2907 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2908 		struct device_attribute *attr,
2909 		const char *buffer, size_t count)
2910 {
2911 	unsigned int result;
2912 	unsigned long value;
2913 
2914 	if (count > 31)
2915 		return -EINVAL;
2916 
2917 	if (kstrtoul(buffer, 10, &value) || value > 1)
2918 		return -EINVAL;
2919 
2920 	if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2921 		return -EIO;
2922 
2923 	return count;
2924 }
2925 
2926 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2927 {
2928 	unsigned int result;
2929 
2930 	sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2931 	if (!sc_handle)
2932 		return -ENOMEM;
2933 
2934 	sysfs_attr_init(&sc_handle->attr);
2935 	sc_handle->attr.name = "smart_connect";
2936 	sc_handle->attr.mode = S_IWUSR;
2937 	sc_handle->show = NULL;
2938 	sc_handle->store = sony_nc_smart_conn_store;
2939 
2940 	result = device_create_file(&pd->dev, sc_handle);
2941 	if (result) {
2942 		kfree(sc_handle);
2943 		sc_handle = NULL;
2944 		return result;
2945 	}
2946 
2947 	return 0;
2948 }
2949 
2950 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2951 {
2952 	if (sc_handle) {
2953 		device_remove_file(&pd->dev, sc_handle);
2954 		kfree(sc_handle);
2955 		sc_handle = NULL;
2956 	}
2957 }
2958 
2959 /* Touchpad enable/disable */
2960 struct touchpad_control {
2961 	struct device_attribute attr;
2962 	int handle;
2963 };
2964 static struct touchpad_control *tp_ctl;
2965 
2966 static ssize_t sony_nc_touchpad_store(struct device *dev,
2967 		struct device_attribute *attr, const char *buffer, size_t count)
2968 {
2969 	unsigned int result;
2970 	unsigned long value;
2971 
2972 	if (count > 31)
2973 		return -EINVAL;
2974 
2975 	if (kstrtoul(buffer, 10, &value) || value > 1)
2976 		return -EINVAL;
2977 
2978 	/* sysfs: 0 disabled, 1 enabled
2979 	 * EC: 0 enabled, 1 disabled
2980 	 */
2981 	if (sony_call_snc_handle(tp_ctl->handle,
2982 				(!value << 0x10) | 0x100, &result))
2983 		return -EIO;
2984 
2985 	return count;
2986 }
2987 
2988 static ssize_t sony_nc_touchpad_show(struct device *dev,
2989 		struct device_attribute *attr, char *buffer)
2990 {
2991 	unsigned int result;
2992 
2993 	if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
2994 		return -EINVAL;
2995 
2996 	return sysfs_emit(buffer, "%d\n", !(result & 0x01));
2997 }
2998 
2999 static int sony_nc_touchpad_setup(struct platform_device *pd,
3000 		unsigned int handle)
3001 {
3002 	int ret = 0;
3003 
3004 	tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3005 	if (!tp_ctl)
3006 		return -ENOMEM;
3007 
3008 	tp_ctl->handle = handle;
3009 
3010 	sysfs_attr_init(&tp_ctl->attr.attr);
3011 	tp_ctl->attr.attr.name = "touchpad";
3012 	tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3013 	tp_ctl->attr.show = sony_nc_touchpad_show;
3014 	tp_ctl->attr.store = sony_nc_touchpad_store;
3015 
3016 	ret = device_create_file(&pd->dev, &tp_ctl->attr);
3017 	if (ret) {
3018 		kfree(tp_ctl);
3019 		tp_ctl = NULL;
3020 	}
3021 
3022 	return ret;
3023 }
3024 
3025 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3026 {
3027 	if (tp_ctl) {
3028 		device_remove_file(&pd->dev, &tp_ctl->attr);
3029 		kfree(tp_ctl);
3030 		tp_ctl = NULL;
3031 	}
3032 }
3033 
3034 static void sony_nc_backlight_ng_read_limits(int handle,
3035 		struct sony_backlight_props *props)
3036 {
3037 	u64 offset;
3038 	int i;
3039 	int lvl_table_len = 0;
3040 	u8 min = 0xff, max = 0x00;
3041 	unsigned char buffer[32] = { 0 };
3042 
3043 	props->handle = handle;
3044 	props->offset = 0;
3045 	props->maxlvl = 0xff;
3046 
3047 	offset = sony_find_snc_handle(handle);
3048 
3049 	/* try to read the boundaries from ACPI tables, if we fail the above
3050 	 * defaults should be reasonable
3051 	 */
3052 	i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3053 			32);
3054 	if (i < 0)
3055 		return;
3056 
3057 	switch (handle) {
3058 	case 0x012f:
3059 	case 0x0137:
3060 		lvl_table_len = 9;
3061 		break;
3062 	case 0x143:
3063 	case 0x14b:
3064 	case 0x14c:
3065 		lvl_table_len = 16;
3066 		break;
3067 	}
3068 
3069 	/* the buffer lists brightness levels available, brightness levels are
3070 	 * from position 0 to 8 in the array, other values are used by ALS
3071 	 * control.
3072 	 */
3073 	for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3074 
3075 		dprintk("Brightness level: %d\n", buffer[i]);
3076 
3077 		if (!buffer[i])
3078 			break;
3079 
3080 		if (buffer[i] > max)
3081 			max = buffer[i];
3082 		if (buffer[i] < min)
3083 			min = buffer[i];
3084 	}
3085 	props->offset = min;
3086 	props->maxlvl = max;
3087 	dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3088 			props->maxlvl);
3089 }
3090 
3091 static void sony_nc_backlight_setup(void)
3092 {
3093 	int max_brightness = 0;
3094 	const struct backlight_ops *ops = NULL;
3095 	struct backlight_properties props;
3096 
3097 	if (sony_find_snc_handle(0x12f) >= 0) {
3098 		ops = &sony_backlight_ng_ops;
3099 		sony_bl_props.cmd_base = 0x0100;
3100 		sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3101 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3102 
3103 	} else if (sony_find_snc_handle(0x137) >= 0) {
3104 		ops = &sony_backlight_ng_ops;
3105 		sony_bl_props.cmd_base = 0x0100;
3106 		sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3107 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3108 
3109 	} else if (sony_find_snc_handle(0x143) >= 0) {
3110 		ops = &sony_backlight_ng_ops;
3111 		sony_bl_props.cmd_base = 0x3000;
3112 		sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3113 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3114 
3115 	} else if (sony_find_snc_handle(0x14b) >= 0) {
3116 		ops = &sony_backlight_ng_ops;
3117 		sony_bl_props.cmd_base = 0x3000;
3118 		sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3119 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3120 
3121 	} else if (sony_find_snc_handle(0x14c) >= 0) {
3122 		ops = &sony_backlight_ng_ops;
3123 		sony_bl_props.cmd_base = 0x3000;
3124 		sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3125 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3126 
3127 	} else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3128 		ops = &sony_backlight_ops;
3129 		max_brightness = SONY_MAX_BRIGHTNESS - 1;
3130 
3131 	} else
3132 		return;
3133 
3134 	memset(&props, 0, sizeof(struct backlight_properties));
3135 	props.type = BACKLIGHT_PLATFORM;
3136 	props.max_brightness = max_brightness;
3137 	sony_bl_props.dev = backlight_device_register("sony", NULL,
3138 						      &sony_bl_props,
3139 						      ops, &props);
3140 
3141 	if (IS_ERR(sony_bl_props.dev)) {
3142 		pr_warn("unable to register backlight device\n");
3143 		sony_bl_props.dev = NULL;
3144 	} else
3145 		sony_bl_props.dev->props.brightness =
3146 			ops->get_brightness(sony_bl_props.dev);
3147 }
3148 
3149 static void sony_nc_backlight_cleanup(void)
3150 {
3151 	backlight_device_unregister(sony_bl_props.dev);
3152 }
3153 
3154 static int sony_nc_add(struct acpi_device *device)
3155 {
3156 	acpi_status status;
3157 	int result = 0;
3158 	struct sony_nc_value *item;
3159 
3160 	sony_nc_acpi_device = device;
3161 	strcpy(acpi_device_class(device), "sony/hotkey");
3162 
3163 	sony_nc_acpi_handle = device->handle;
3164 
3165 	/* read device status */
3166 	result = acpi_bus_get_status(device);
3167 	/* bail IFF the above call was successful and the device is not present */
3168 	if (!result && !device->status.present) {
3169 		dprintk("Device not present\n");
3170 		result = -ENODEV;
3171 		goto outwalk;
3172 	}
3173 
3174 	result = sony_pf_add();
3175 	if (result)
3176 		goto outpresent;
3177 
3178 	if (debug) {
3179 		status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3180 				sony_nc_acpi_handle, 1, sony_walk_callback,
3181 				NULL, NULL, NULL);
3182 		if (ACPI_FAILURE(status)) {
3183 			pr_warn("unable to walk acpi resources\n");
3184 			result = -ENODEV;
3185 			goto outpresent;
3186 		}
3187 	}
3188 
3189 	result = sony_laptop_setup_input(device);
3190 	if (result) {
3191 		pr_err("Unable to create input devices\n");
3192 		goto outplatform;
3193 	}
3194 
3195 	if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3196 		int arg = 1;
3197 		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3198 			dprintk("ECON Method failed\n");
3199 	}
3200 
3201 	if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3202 		dprintk("Doing SNC setup\n");
3203 		/* retrieve the available handles */
3204 		result = sony_nc_handles_setup(sony_pf_device);
3205 		if (!result)
3206 			sony_nc_function_setup(device, sony_pf_device);
3207 	}
3208 
3209 	if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3210 		sony_nc_backlight_setup();
3211 
3212 	/* create sony_pf sysfs attributes related to the SNC device */
3213 	for (item = sony_nc_values; item->name; ++item) {
3214 
3215 		if (!debug && item->debug)
3216 			continue;
3217 
3218 		/* find the available acpiget as described in the DSDT */
3219 		for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3220 			if (acpi_has_method(sony_nc_acpi_handle,
3221 							*item->acpiget)) {
3222 				dprintk("Found %s getter: %s\n",
3223 						item->name, *item->acpiget);
3224 				item->devattr.attr.mode |= S_IRUGO;
3225 				break;
3226 			}
3227 		}
3228 
3229 		/* find the available acpiset as described in the DSDT */
3230 		for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3231 			if (acpi_has_method(sony_nc_acpi_handle,
3232 							*item->acpiset)) {
3233 				dprintk("Found %s setter: %s\n",
3234 						item->name, *item->acpiset);
3235 				item->devattr.attr.mode |= S_IWUSR;
3236 				break;
3237 			}
3238 		}
3239 
3240 		if (item->devattr.attr.mode != 0) {
3241 			result =
3242 			    device_create_file(&sony_pf_device->dev,
3243 					       &item->devattr);
3244 			if (result)
3245 				goto out_sysfs;
3246 		}
3247 	}
3248 
3249 	pr_info("SNC setup done.\n");
3250 	return 0;
3251 
3252 out_sysfs:
3253 	for (item = sony_nc_values; item->name; ++item) {
3254 		device_remove_file(&sony_pf_device->dev, &item->devattr);
3255 	}
3256 	sony_nc_backlight_cleanup();
3257 	sony_nc_function_cleanup(sony_pf_device);
3258 	sony_nc_handles_cleanup(sony_pf_device);
3259 
3260 outplatform:
3261 	sony_laptop_remove_input();
3262 
3263 outpresent:
3264 	sony_pf_remove();
3265 
3266 outwalk:
3267 	sony_nc_rfkill_cleanup();
3268 	return result;
3269 }
3270 
3271 static void sony_nc_remove(struct acpi_device *device)
3272 {
3273 	struct sony_nc_value *item;
3274 
3275 	sony_nc_backlight_cleanup();
3276 
3277 	sony_nc_acpi_device = NULL;
3278 
3279 	for (item = sony_nc_values; item->name; ++item) {
3280 		device_remove_file(&sony_pf_device->dev, &item->devattr);
3281 	}
3282 
3283 	sony_nc_function_cleanup(sony_pf_device);
3284 	sony_nc_handles_cleanup(sony_pf_device);
3285 	sony_pf_remove();
3286 	sony_laptop_remove_input();
3287 	dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3288 }
3289 
3290 static const struct acpi_device_id sony_device_ids[] __maybe_unused = {
3291 	{SONY_NC_HID, 0},
3292 	{SONY_PIC_HID, 0},
3293 	{"", 0},
3294 };
3295 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3296 
3297 static const struct acpi_device_id sony_nc_device_ids[] = {
3298 	{SONY_NC_HID, 0},
3299 	{"", 0},
3300 };
3301 
3302 static struct acpi_driver sony_nc_driver = {
3303 	.name = SONY_NC_DRIVER_NAME,
3304 	.class = SONY_NC_CLASS,
3305 	.ids = sony_nc_device_ids,
3306 	.owner = THIS_MODULE,
3307 	.ops = {
3308 		.add = sony_nc_add,
3309 		.remove = sony_nc_remove,
3310 		.notify = sony_nc_notify,
3311 		},
3312 	.drv.pm = &sony_nc_pm,
3313 };
3314 
3315 /*********** SPIC (SNY6001) Device ***********/
3316 
3317 #define SONYPI_DEVICE_TYPE1	0x00000001
3318 #define SONYPI_DEVICE_TYPE2	0x00000002
3319 #define SONYPI_DEVICE_TYPE3	0x00000004
3320 
3321 #define SONYPI_TYPE1_OFFSET	0x04
3322 #define SONYPI_TYPE2_OFFSET	0x12
3323 #define SONYPI_TYPE3_OFFSET	0x12
3324 
3325 struct sony_pic_ioport {
3326 	struct acpi_resource_io	io1;
3327 	struct acpi_resource_io	io2;
3328 	struct list_head	list;
3329 };
3330 
3331 struct sony_pic_irq {
3332 	struct acpi_resource_irq	irq;
3333 	struct list_head		list;
3334 };
3335 
3336 struct sonypi_eventtypes {
3337 	u8			data;
3338 	unsigned long		mask;
3339 	struct sonypi_event	*events;
3340 };
3341 
3342 struct sony_pic_dev {
3343 	struct acpi_device		*acpi_dev;
3344 	struct sony_pic_irq		*cur_irq;
3345 	struct sony_pic_ioport		*cur_ioport;
3346 	struct list_head		interrupts;
3347 	struct list_head		ioports;
3348 	struct mutex			lock;
3349 	struct sonypi_eventtypes	*event_types;
3350 	int                             (*handle_irq)(const u8, const u8);
3351 	int				model;
3352 	u16				evport_offset;
3353 	u8				camera_power;
3354 	u8				bluetooth_power;
3355 	u8				wwan_power;
3356 };
3357 
3358 static struct sony_pic_dev spic_dev = {
3359 	.interrupts	= LIST_HEAD_INIT(spic_dev.interrupts),
3360 	.ioports	= LIST_HEAD_INIT(spic_dev.ioports),
3361 };
3362 
3363 static int spic_drv_registered;
3364 
3365 /* Event masks */
3366 #define SONYPI_JOGGER_MASK			0x00000001
3367 #define SONYPI_CAPTURE_MASK			0x00000002
3368 #define SONYPI_FNKEY_MASK			0x00000004
3369 #define SONYPI_BLUETOOTH_MASK			0x00000008
3370 #define SONYPI_PKEY_MASK			0x00000010
3371 #define SONYPI_BACK_MASK			0x00000020
3372 #define SONYPI_HELP_MASK			0x00000040
3373 #define SONYPI_LID_MASK				0x00000080
3374 #define SONYPI_ZOOM_MASK			0x00000100
3375 #define SONYPI_THUMBPHRASE_MASK			0x00000200
3376 #define SONYPI_MEYE_MASK			0x00000400
3377 #define SONYPI_MEMORYSTICK_MASK			0x00000800
3378 #define SONYPI_BATTERY_MASK			0x00001000
3379 #define SONYPI_WIRELESS_MASK			0x00002000
3380 
3381 struct sonypi_event {
3382 	u8	data;
3383 	u8	event;
3384 };
3385 
3386 /* The set of possible button release events */
3387 static struct sonypi_event sonypi_releaseev[] = {
3388 	{ 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3389 	{ 0, 0 }
3390 };
3391 
3392 /* The set of possible jogger events  */
3393 static struct sonypi_event sonypi_joggerev[] = {
3394 	{ 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3395 	{ 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3396 	{ 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3397 	{ 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3398 	{ 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3399 	{ 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3400 	{ 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3401 	{ 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3402 	{ 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3403 	{ 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3404 	{ 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3405 	{ 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3406 	{ 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3407 	{ 0, 0 }
3408 };
3409 
3410 /* The set of possible capture button events */
3411 static struct sonypi_event sonypi_captureev[] = {
3412 	{ 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3413 	{ 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3414 	{ 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3415 	{ 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3416 	{ 0, 0 }
3417 };
3418 
3419 /* The set of possible fnkeys events */
3420 static struct sonypi_event sonypi_fnkeyev[] = {
3421 	{ 0x10, SONYPI_EVENT_FNKEY_ESC },
3422 	{ 0x11, SONYPI_EVENT_FNKEY_F1 },
3423 	{ 0x12, SONYPI_EVENT_FNKEY_F2 },
3424 	{ 0x13, SONYPI_EVENT_FNKEY_F3 },
3425 	{ 0x14, SONYPI_EVENT_FNKEY_F4 },
3426 	{ 0x15, SONYPI_EVENT_FNKEY_F5 },
3427 	{ 0x16, SONYPI_EVENT_FNKEY_F6 },
3428 	{ 0x17, SONYPI_EVENT_FNKEY_F7 },
3429 	{ 0x18, SONYPI_EVENT_FNKEY_F8 },
3430 	{ 0x19, SONYPI_EVENT_FNKEY_F9 },
3431 	{ 0x1a, SONYPI_EVENT_FNKEY_F10 },
3432 	{ 0x1b, SONYPI_EVENT_FNKEY_F11 },
3433 	{ 0x1c, SONYPI_EVENT_FNKEY_F12 },
3434 	{ 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3435 	{ 0x21, SONYPI_EVENT_FNKEY_1 },
3436 	{ 0x22, SONYPI_EVENT_FNKEY_2 },
3437 	{ 0x31, SONYPI_EVENT_FNKEY_D },
3438 	{ 0x32, SONYPI_EVENT_FNKEY_E },
3439 	{ 0x33, SONYPI_EVENT_FNKEY_F },
3440 	{ 0x34, SONYPI_EVENT_FNKEY_S },
3441 	{ 0x35, SONYPI_EVENT_FNKEY_B },
3442 	{ 0x36, SONYPI_EVENT_FNKEY_ONLY },
3443 	{ 0, 0 }
3444 };
3445 
3446 /* The set of possible program key events */
3447 static struct sonypi_event sonypi_pkeyev[] = {
3448 	{ 0x01, SONYPI_EVENT_PKEY_P1 },
3449 	{ 0x02, SONYPI_EVENT_PKEY_P2 },
3450 	{ 0x04, SONYPI_EVENT_PKEY_P3 },
3451 	{ 0x20, SONYPI_EVENT_PKEY_P1 },
3452 	{ 0, 0 }
3453 };
3454 
3455 /* The set of possible bluetooth events */
3456 static struct sonypi_event sonypi_blueev[] = {
3457 	{ 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3458 	{ 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3459 	{ 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3460 	{ 0, 0 }
3461 };
3462 
3463 /* The set of possible wireless events */
3464 static struct sonypi_event sonypi_wlessev[] = {
3465 	{ 0x59, SONYPI_EVENT_IGNORE },
3466 	{ 0x5a, SONYPI_EVENT_IGNORE },
3467 	{ 0, 0 }
3468 };
3469 
3470 /* The set of possible back button events */
3471 static struct sonypi_event sonypi_backev[] = {
3472 	{ 0x20, SONYPI_EVENT_BACK_PRESSED },
3473 	{ 0, 0 }
3474 };
3475 
3476 /* The set of possible help button events */
3477 static struct sonypi_event sonypi_helpev[] = {
3478 	{ 0x3b, SONYPI_EVENT_HELP_PRESSED },
3479 	{ 0, 0 }
3480 };
3481 
3482 
3483 /* The set of possible lid events */
3484 static struct sonypi_event sonypi_lidev[] = {
3485 	{ 0x51, SONYPI_EVENT_LID_CLOSED },
3486 	{ 0x50, SONYPI_EVENT_LID_OPENED },
3487 	{ 0, 0 }
3488 };
3489 
3490 /* The set of possible zoom events */
3491 static struct sonypi_event sonypi_zoomev[] = {
3492 	{ 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3493 	{ 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3494 	{ 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3495 	{ 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3496 	{ 0, 0 }
3497 };
3498 
3499 /* The set of possible thumbphrase events */
3500 static struct sonypi_event sonypi_thumbphraseev[] = {
3501 	{ 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3502 	{ 0, 0 }
3503 };
3504 
3505 /* The set of possible motioneye camera events */
3506 static struct sonypi_event sonypi_meyeev[] = {
3507 	{ 0x00, SONYPI_EVENT_MEYE_FACE },
3508 	{ 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3509 	{ 0, 0 }
3510 };
3511 
3512 /* The set of possible memorystick events */
3513 static struct sonypi_event sonypi_memorystickev[] = {
3514 	{ 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3515 	{ 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3516 	{ 0, 0 }
3517 };
3518 
3519 /* The set of possible battery events */
3520 static struct sonypi_event sonypi_batteryev[] = {
3521 	{ 0x20, SONYPI_EVENT_BATTERY_INSERT },
3522 	{ 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3523 	{ 0, 0 }
3524 };
3525 
3526 /* The set of possible volume events */
3527 static struct sonypi_event sonypi_volumeev[] = {
3528 	{ 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3529 	{ 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3530 	{ 0, 0 }
3531 };
3532 
3533 /* The set of possible brightness events */
3534 static struct sonypi_event sonypi_brightnessev[] = {
3535 	{ 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3536 	{ 0, 0 }
3537 };
3538 
3539 static struct sonypi_eventtypes type1_events[] = {
3540 	{ 0, 0xffffffff, sonypi_releaseev },
3541 	{ 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3542 	{ 0x30, SONYPI_LID_MASK, sonypi_lidev },
3543 	{ 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3544 	{ 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3545 	{ 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3546 	{ 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3547 	{ 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3548 	{ 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3549 	{ 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3550 	{ 0 },
3551 };
3552 static struct sonypi_eventtypes type2_events[] = {
3553 	{ 0, 0xffffffff, sonypi_releaseev },
3554 	{ 0x38, SONYPI_LID_MASK, sonypi_lidev },
3555 	{ 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3556 	{ 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3557 	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3558 	{ 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3559 	{ 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3560 	{ 0x11, SONYPI_BACK_MASK, sonypi_backev },
3561 	{ 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3562 	{ 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3563 	{ 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3564 	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3565 	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3566 	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3567 	{ 0 },
3568 };
3569 static struct sonypi_eventtypes type3_events[] = {
3570 	{ 0, 0xffffffff, sonypi_releaseev },
3571 	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3572 	{ 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3573 	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3574 	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3575 	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3576 	{ 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3577 	{ 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3578 	{ 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3579 	{ 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3580 	{ 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3581 	{ 0 },
3582 };
3583 
3584 /* low level spic calls */
3585 #define ITERATIONS_LONG		10000
3586 #define ITERATIONS_SHORT	10
3587 #define wait_on_command(command, iterations) {				\
3588 	unsigned int n = iterations;					\
3589 	while (--n && (command))					\
3590 		udelay(1);						\
3591 	if (!n)								\
3592 		dprintk("command failed at %s : %s (line %d)\n",	\
3593 				__FILE__, __func__, __LINE__);	\
3594 }
3595 
3596 static u8 sony_pic_call1(u8 dev)
3597 {
3598 	u8 v1, v2;
3599 
3600 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3601 			ITERATIONS_LONG);
3602 	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3603 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3604 	v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3605 	dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3606 	return v2;
3607 }
3608 
3609 static u8 sony_pic_call2(u8 dev, u8 fn)
3610 {
3611 	u8 v1;
3612 
3613 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3614 			ITERATIONS_LONG);
3615 	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3616 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3617 			ITERATIONS_LONG);
3618 	outb(fn, spic_dev.cur_ioport->io1.minimum);
3619 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3620 	dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3621 	return v1;
3622 }
3623 
3624 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3625 {
3626 	u8 v1;
3627 
3628 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3629 	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3630 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3631 	outb(fn, spic_dev.cur_ioport->io1.minimum);
3632 	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3633 	outb(v, spic_dev.cur_ioport->io1.minimum);
3634 	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3635 	dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3636 			dev, fn, v, v1);
3637 	return v1;
3638 }
3639 
3640 /*
3641  * minidrivers for SPIC models
3642  */
3643 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3644 {
3645 	/*
3646 	 * 0x31 could mean we have to take some extra action and wait for
3647 	 * the next irq for some Type3 models, it will generate a new
3648 	 * irq and we can read new data from the device:
3649 	 *  - 0x5c and 0x5f requires 0xA0
3650 	 *  - 0x61 requires 0xB3
3651 	 */
3652 	if (data_mask == 0x31) {
3653 		if (ev == 0x5c || ev == 0x5f)
3654 			sony_pic_call1(0xA0);
3655 		else if (ev == 0x61)
3656 			sony_pic_call1(0xB3);
3657 		return 0;
3658 	}
3659 	return 1;
3660 }
3661 
3662 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3663 {
3664 	struct pci_dev *pcidev;
3665 
3666 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3667 			PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3668 	if (pcidev) {
3669 		dev->model = SONYPI_DEVICE_TYPE1;
3670 		dev->evport_offset = SONYPI_TYPE1_OFFSET;
3671 		dev->event_types = type1_events;
3672 		goto out;
3673 	}
3674 
3675 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3676 			PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3677 	if (pcidev) {
3678 		dev->model = SONYPI_DEVICE_TYPE2;
3679 		dev->evport_offset = SONYPI_TYPE2_OFFSET;
3680 		dev->event_types = type2_events;
3681 		goto out;
3682 	}
3683 
3684 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3685 			PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3686 	if (pcidev) {
3687 		dev->model = SONYPI_DEVICE_TYPE3;
3688 		dev->handle_irq = type3_handle_irq;
3689 		dev->evport_offset = SONYPI_TYPE3_OFFSET;
3690 		dev->event_types = type3_events;
3691 		goto out;
3692 	}
3693 
3694 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3695 			PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3696 	if (pcidev) {
3697 		dev->model = SONYPI_DEVICE_TYPE3;
3698 		dev->handle_irq = type3_handle_irq;
3699 		dev->evport_offset = SONYPI_TYPE3_OFFSET;
3700 		dev->event_types = type3_events;
3701 		goto out;
3702 	}
3703 
3704 	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3705 			PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3706 	if (pcidev) {
3707 		dev->model = SONYPI_DEVICE_TYPE3;
3708 		dev->handle_irq = type3_handle_irq;
3709 		dev->evport_offset = SONYPI_TYPE3_OFFSET;
3710 		dev->event_types = type3_events;
3711 		goto out;
3712 	}
3713 
3714 	/* default */
3715 	dev->model = SONYPI_DEVICE_TYPE2;
3716 	dev->evport_offset = SONYPI_TYPE2_OFFSET;
3717 	dev->event_types = type2_events;
3718 
3719 out:
3720 	pci_dev_put(pcidev);
3721 
3722 	pr_info("detected Type%d model\n",
3723 		dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3724 		dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3725 }
3726 
3727 /* camera tests and poweron/poweroff */
3728 #define SONYPI_CAMERA_PICTURE		5
3729 #define SONYPI_CAMERA_CONTROL		0x10
3730 
3731 #define SONYPI_CAMERA_BRIGHTNESS		0
3732 #define SONYPI_CAMERA_CONTRAST			1
3733 #define SONYPI_CAMERA_HUE			2
3734 #define SONYPI_CAMERA_COLOR			3
3735 #define SONYPI_CAMERA_SHARPNESS			4
3736 
3737 #define SONYPI_CAMERA_EXPOSURE_MASK		0xC
3738 #define SONYPI_CAMERA_WHITE_BALANCE_MASK	0x3
3739 #define SONYPI_CAMERA_PICTURE_MODE_MASK		0x30
3740 #define SONYPI_CAMERA_MUTE_MASK			0x40
3741 
3742 /* the rest don't need a loop until not 0xff */
3743 #define SONYPI_CAMERA_AGC			6
3744 #define SONYPI_CAMERA_AGC_MASK			0x30
3745 #define SONYPI_CAMERA_SHUTTER_MASK 		0x7
3746 
3747 #define SONYPI_CAMERA_SHUTDOWN_REQUEST		7
3748 #define SONYPI_CAMERA_CONTROL			0x10
3749 
3750 #define SONYPI_CAMERA_STATUS 			7
3751 #define SONYPI_CAMERA_STATUS_READY 		0x2
3752 #define SONYPI_CAMERA_STATUS_POSITION		0x4
3753 
3754 #define SONYPI_DIRECTION_BACKWARDS 		0x4
3755 
3756 #define SONYPI_CAMERA_REVISION 			8
3757 #define SONYPI_CAMERA_ROMVERSION 		9
3758 
3759 static int __sony_pic_camera_ready(void)
3760 {
3761 	u8 v;
3762 
3763 	v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3764 	return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3765 }
3766 
3767 static int __sony_pic_camera_off(void)
3768 {
3769 	if (!camera) {
3770 		pr_warn("camera control not enabled\n");
3771 		return -ENODEV;
3772 	}
3773 
3774 	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3775 				SONYPI_CAMERA_MUTE_MASK),
3776 			ITERATIONS_SHORT);
3777 
3778 	if (spic_dev.camera_power) {
3779 		sony_pic_call2(0x91, 0);
3780 		spic_dev.camera_power = 0;
3781 	}
3782 	return 0;
3783 }
3784 
3785 static int __sony_pic_camera_on(void)
3786 {
3787 	int i, j, x;
3788 
3789 	if (!camera) {
3790 		pr_warn("camera control not enabled\n");
3791 		return -ENODEV;
3792 	}
3793 
3794 	if (spic_dev.camera_power)
3795 		return 0;
3796 
3797 	for (j = 5; j > 0; j--) {
3798 
3799 		for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3800 			msleep(10);
3801 		sony_pic_call1(0x93);
3802 
3803 		for (i = 400; i > 0; i--) {
3804 			if (__sony_pic_camera_ready())
3805 				break;
3806 			msleep(10);
3807 		}
3808 		if (i)
3809 			break;
3810 	}
3811 
3812 	if (j == 0) {
3813 		pr_warn("failed to power on camera\n");
3814 		return -ENODEV;
3815 	}
3816 
3817 	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3818 				0x5a),
3819 			ITERATIONS_SHORT);
3820 
3821 	spic_dev.camera_power = 1;
3822 	return 0;
3823 }
3824 
3825 /* External camera command (exported to the motion eye v4l driver) */
3826 int sony_pic_camera_command(int command, u8 value)
3827 {
3828 	if (!camera)
3829 		return -EIO;
3830 
3831 	mutex_lock(&spic_dev.lock);
3832 
3833 	switch (command) {
3834 	case SONY_PIC_COMMAND_SETCAMERA:
3835 		if (value)
3836 			__sony_pic_camera_on();
3837 		else
3838 			__sony_pic_camera_off();
3839 		break;
3840 	case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3841 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3842 				ITERATIONS_SHORT);
3843 		break;
3844 	case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3845 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3846 				ITERATIONS_SHORT);
3847 		break;
3848 	case SONY_PIC_COMMAND_SETCAMERAHUE:
3849 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3850 				ITERATIONS_SHORT);
3851 		break;
3852 	case SONY_PIC_COMMAND_SETCAMERACOLOR:
3853 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3854 				ITERATIONS_SHORT);
3855 		break;
3856 	case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3857 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3858 				ITERATIONS_SHORT);
3859 		break;
3860 	case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3861 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3862 				ITERATIONS_SHORT);
3863 		break;
3864 	case SONY_PIC_COMMAND_SETCAMERAAGC:
3865 		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3866 				ITERATIONS_SHORT);
3867 		break;
3868 	default:
3869 		pr_err("sony_pic_camera_command invalid: %d\n", command);
3870 		break;
3871 	}
3872 	mutex_unlock(&spic_dev.lock);
3873 	return 0;
3874 }
3875 EXPORT_SYMBOL(sony_pic_camera_command);
3876 
3877 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3878 static void __sony_pic_set_wwanpower(u8 state)
3879 {
3880 	state = !!state;
3881 	if (spic_dev.wwan_power == state)
3882 		return;
3883 	sony_pic_call2(0xB0, state);
3884 	sony_pic_call1(0x82);
3885 	spic_dev.wwan_power = state;
3886 }
3887 
3888 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3889 		struct device_attribute *attr,
3890 		const char *buffer, size_t count)
3891 {
3892 	unsigned long value;
3893 	if (count > 31)
3894 		return -EINVAL;
3895 
3896 	if (kstrtoul(buffer, 10, &value))
3897 		return -EINVAL;
3898 
3899 	mutex_lock(&spic_dev.lock);
3900 	__sony_pic_set_wwanpower(value);
3901 	mutex_unlock(&spic_dev.lock);
3902 
3903 	return count;
3904 }
3905 
3906 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3907 		struct device_attribute *attr, char *buffer)
3908 {
3909 	ssize_t count;
3910 	mutex_lock(&spic_dev.lock);
3911 	count = sysfs_emit(buffer, "%d\n", spic_dev.wwan_power);
3912 	mutex_unlock(&spic_dev.lock);
3913 	return count;
3914 }
3915 
3916 /* bluetooth subsystem power state */
3917 static void __sony_pic_set_bluetoothpower(u8 state)
3918 {
3919 	state = !!state;
3920 	if (spic_dev.bluetooth_power == state)
3921 		return;
3922 	sony_pic_call2(0x96, state);
3923 	sony_pic_call1(0x82);
3924 	spic_dev.bluetooth_power = state;
3925 }
3926 
3927 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3928 		struct device_attribute *attr,
3929 		const char *buffer, size_t count)
3930 {
3931 	unsigned long value;
3932 	if (count > 31)
3933 		return -EINVAL;
3934 
3935 	if (kstrtoul(buffer, 10, &value))
3936 		return -EINVAL;
3937 
3938 	mutex_lock(&spic_dev.lock);
3939 	__sony_pic_set_bluetoothpower(value);
3940 	mutex_unlock(&spic_dev.lock);
3941 
3942 	return count;
3943 }
3944 
3945 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3946 		struct device_attribute *attr, char *buffer)
3947 {
3948 	ssize_t count = 0;
3949 	mutex_lock(&spic_dev.lock);
3950 	count = sysfs_emit(buffer, "%d\n", spic_dev.bluetooth_power);
3951 	mutex_unlock(&spic_dev.lock);
3952 	return count;
3953 }
3954 
3955 /* fan speed */
3956 /* FAN0 information (reverse engineered from ACPI tables) */
3957 #define SONY_PIC_FAN0_STATUS	0x93
3958 static int sony_pic_set_fanspeed(unsigned long value)
3959 {
3960 	return ec_write(SONY_PIC_FAN0_STATUS, value);
3961 }
3962 
3963 static int sony_pic_get_fanspeed(u8 *value)
3964 {
3965 	return ec_read(SONY_PIC_FAN0_STATUS, value);
3966 }
3967 
3968 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3969 		struct device_attribute *attr,
3970 		const char *buffer, size_t count)
3971 {
3972 	unsigned long value;
3973 	if (count > 31)
3974 		return -EINVAL;
3975 
3976 	if (kstrtoul(buffer, 10, &value))
3977 		return -EINVAL;
3978 
3979 	if (sony_pic_set_fanspeed(value))
3980 		return -EIO;
3981 
3982 	return count;
3983 }
3984 
3985 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3986 		struct device_attribute *attr, char *buffer)
3987 {
3988 	u8 value = 0;
3989 	if (sony_pic_get_fanspeed(&value))
3990 		return -EIO;
3991 
3992 	return sysfs_emit(buffer, "%d\n", value);
3993 }
3994 
3995 #define SPIC_ATTR(_name, _mode)					\
3996 struct device_attribute spic_attr_##_name = __ATTR(_name,	\
3997 		_mode, sony_pic_## _name ##_show,		\
3998 		sony_pic_## _name ##_store)
3999 
4000 static SPIC_ATTR(bluetoothpower, 0644);
4001 static SPIC_ATTR(wwanpower, 0644);
4002 static SPIC_ATTR(fanspeed, 0644);
4003 
4004 static struct attribute *spic_attributes[] = {
4005 	&spic_attr_bluetoothpower.attr,
4006 	&spic_attr_wwanpower.attr,
4007 	&spic_attr_fanspeed.attr,
4008 	NULL
4009 };
4010 
4011 static const struct attribute_group spic_attribute_group = {
4012 	.attrs = spic_attributes
4013 };
4014 
4015 /******** SONYPI compatibility **********/
4016 #ifdef CONFIG_SONYPI_COMPAT
4017 
4018 /* battery / brightness / temperature  addresses */
4019 #define SONYPI_BAT_FLAGS	0x81
4020 #define SONYPI_LCD_LIGHT	0x96
4021 #define SONYPI_BAT1_PCTRM	0xa0
4022 #define SONYPI_BAT1_LEFT	0xa2
4023 #define SONYPI_BAT1_MAXRT	0xa4
4024 #define SONYPI_BAT2_PCTRM	0xa8
4025 #define SONYPI_BAT2_LEFT	0xaa
4026 #define SONYPI_BAT2_MAXRT	0xac
4027 #define SONYPI_BAT1_MAXTK	0xb0
4028 #define SONYPI_BAT1_FULL	0xb2
4029 #define SONYPI_BAT2_MAXTK	0xb8
4030 #define SONYPI_BAT2_FULL	0xba
4031 #define SONYPI_TEMP_STATUS	0xC1
4032 
4033 struct sonypi_compat_s {
4034 	struct fasync_struct	*fifo_async;
4035 	struct kfifo		fifo;
4036 	spinlock_t		fifo_lock;
4037 	wait_queue_head_t	fifo_proc_list;
4038 	atomic_t		open_count;
4039 };
4040 static struct sonypi_compat_s sonypi_compat = {
4041 	.open_count = ATOMIC_INIT(0),
4042 };
4043 
4044 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4045 {
4046 	return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4047 }
4048 
4049 static int sonypi_misc_release(struct inode *inode, struct file *file)
4050 {
4051 	atomic_dec(&sonypi_compat.open_count);
4052 	return 0;
4053 }
4054 
4055 static int sonypi_misc_open(struct inode *inode, struct file *file)
4056 {
4057 	/* Flush input queue on first open */
4058 	unsigned long flags;
4059 
4060 	spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4061 
4062 	if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4063 		kfifo_reset(&sonypi_compat.fifo);
4064 
4065 	spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4066 
4067 	return 0;
4068 }
4069 
4070 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4071 				size_t count, loff_t *pos)
4072 {
4073 	ssize_t ret;
4074 	unsigned char c;
4075 
4076 	if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4077 	    (file->f_flags & O_NONBLOCK))
4078 		return -EAGAIN;
4079 
4080 	ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4081 				       kfifo_len(&sonypi_compat.fifo) != 0);
4082 	if (ret)
4083 		return ret;
4084 
4085 	while (ret < count &&
4086 	       (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4087 			  &sonypi_compat.fifo_lock) == sizeof(c))) {
4088 		if (put_user(c, buf++))
4089 			return -EFAULT;
4090 		ret++;
4091 	}
4092 
4093 	if (ret > 0) {
4094 		struct inode *inode = file_inode(file);
4095 		inode->i_atime = current_time(inode);
4096 	}
4097 
4098 	return ret;
4099 }
4100 
4101 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4102 {
4103 	poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4104 	if (kfifo_len(&sonypi_compat.fifo))
4105 		return EPOLLIN | EPOLLRDNORM;
4106 	return 0;
4107 }
4108 
4109 static int ec_read16(u8 addr, u16 *value)
4110 {
4111 	u8 val_lb, val_hb;
4112 	if (ec_read(addr, &val_lb))
4113 		return -1;
4114 	if (ec_read(addr + 1, &val_hb))
4115 		return -1;
4116 	*value = val_lb | (val_hb << 8);
4117 	return 0;
4118 }
4119 
4120 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4121 							unsigned long arg)
4122 {
4123 	int ret = 0;
4124 	void __user *argp = (void __user *)arg;
4125 	u8 val8;
4126 	u16 val16;
4127 	int value;
4128 
4129 	mutex_lock(&spic_dev.lock);
4130 	switch (cmd) {
4131 	case SONYPI_IOCGBRT:
4132 		if (sony_bl_props.dev == NULL) {
4133 			ret = -EIO;
4134 			break;
4135 		}
4136 		if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4137 					&value)) {
4138 			ret = -EIO;
4139 			break;
4140 		}
4141 		val8 = ((value & 0xff) - 1) << 5;
4142 		if (copy_to_user(argp, &val8, sizeof(val8)))
4143 				ret = -EFAULT;
4144 		break;
4145 	case SONYPI_IOCSBRT:
4146 		if (sony_bl_props.dev == NULL) {
4147 			ret = -EIO;
4148 			break;
4149 		}
4150 		if (copy_from_user(&val8, argp, sizeof(val8))) {
4151 			ret = -EFAULT;
4152 			break;
4153 		}
4154 		value = (val8 >> 5) + 1;
4155 		if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4156 					NULL)) {
4157 			ret = -EIO;
4158 			break;
4159 		}
4160 		/* sync the backlight device status */
4161 		sony_bl_props.dev->props.brightness =
4162 		    sony_backlight_get_brightness(sony_bl_props.dev);
4163 		break;
4164 	case SONYPI_IOCGBAT1CAP:
4165 		if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4166 			ret = -EIO;
4167 			break;
4168 		}
4169 		if (copy_to_user(argp, &val16, sizeof(val16)))
4170 			ret = -EFAULT;
4171 		break;
4172 	case SONYPI_IOCGBAT1REM:
4173 		if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4174 			ret = -EIO;
4175 			break;
4176 		}
4177 		if (copy_to_user(argp, &val16, sizeof(val16)))
4178 			ret = -EFAULT;
4179 		break;
4180 	case SONYPI_IOCGBAT2CAP:
4181 		if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4182 			ret = -EIO;
4183 			break;
4184 		}
4185 		if (copy_to_user(argp, &val16, sizeof(val16)))
4186 			ret = -EFAULT;
4187 		break;
4188 	case SONYPI_IOCGBAT2REM:
4189 		if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4190 			ret = -EIO;
4191 			break;
4192 		}
4193 		if (copy_to_user(argp, &val16, sizeof(val16)))
4194 			ret = -EFAULT;
4195 		break;
4196 	case SONYPI_IOCGBATFLAGS:
4197 		if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4198 			ret = -EIO;
4199 			break;
4200 		}
4201 		val8 &= 0x07;
4202 		if (copy_to_user(argp, &val8, sizeof(val8)))
4203 			ret = -EFAULT;
4204 		break;
4205 	case SONYPI_IOCGBLUE:
4206 		val8 = spic_dev.bluetooth_power;
4207 		if (copy_to_user(argp, &val8, sizeof(val8)))
4208 			ret = -EFAULT;
4209 		break;
4210 	case SONYPI_IOCSBLUE:
4211 		if (copy_from_user(&val8, argp, sizeof(val8))) {
4212 			ret = -EFAULT;
4213 			break;
4214 		}
4215 		__sony_pic_set_bluetoothpower(val8);
4216 		break;
4217 	/* FAN Controls */
4218 	case SONYPI_IOCGFAN:
4219 		if (sony_pic_get_fanspeed(&val8)) {
4220 			ret = -EIO;
4221 			break;
4222 		}
4223 		if (copy_to_user(argp, &val8, sizeof(val8)))
4224 			ret = -EFAULT;
4225 		break;
4226 	case SONYPI_IOCSFAN:
4227 		if (copy_from_user(&val8, argp, sizeof(val8))) {
4228 			ret = -EFAULT;
4229 			break;
4230 		}
4231 		if (sony_pic_set_fanspeed(val8))
4232 			ret = -EIO;
4233 		break;
4234 	/* GET Temperature (useful under APM) */
4235 	case SONYPI_IOCGTEMP:
4236 		if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4237 			ret = -EIO;
4238 			break;
4239 		}
4240 		if (copy_to_user(argp, &val8, sizeof(val8)))
4241 			ret = -EFAULT;
4242 		break;
4243 	default:
4244 		ret = -EINVAL;
4245 	}
4246 	mutex_unlock(&spic_dev.lock);
4247 	return ret;
4248 }
4249 
4250 static const struct file_operations sonypi_misc_fops = {
4251 	.owner		= THIS_MODULE,
4252 	.read		= sonypi_misc_read,
4253 	.poll		= sonypi_misc_poll,
4254 	.open		= sonypi_misc_open,
4255 	.release	= sonypi_misc_release,
4256 	.fasync		= sonypi_misc_fasync,
4257 	.unlocked_ioctl	= sonypi_misc_ioctl,
4258 	.llseek		= noop_llseek,
4259 };
4260 
4261 static struct miscdevice sonypi_misc_device = {
4262 	.minor		= MISC_DYNAMIC_MINOR,
4263 	.name		= "sonypi",
4264 	.fops		= &sonypi_misc_fops,
4265 };
4266 
4267 static void sonypi_compat_report_event(u8 event)
4268 {
4269 	kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4270 			sizeof(event), &sonypi_compat.fifo_lock);
4271 	kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4272 	wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4273 }
4274 
4275 static int sonypi_compat_init(void)
4276 {
4277 	int error;
4278 
4279 	spin_lock_init(&sonypi_compat.fifo_lock);
4280 	error =
4281 	 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4282 	if (error) {
4283 		pr_err("kfifo_alloc failed\n");
4284 		return error;
4285 	}
4286 
4287 	init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4288 
4289 	if (minor != -1)
4290 		sonypi_misc_device.minor = minor;
4291 	error = misc_register(&sonypi_misc_device);
4292 	if (error) {
4293 		pr_err("misc_register failed\n");
4294 		goto err_free_kfifo;
4295 	}
4296 	if (minor == -1)
4297 		pr_info("device allocated minor is %d\n",
4298 			sonypi_misc_device.minor);
4299 
4300 	return 0;
4301 
4302 err_free_kfifo:
4303 	kfifo_free(&sonypi_compat.fifo);
4304 	return error;
4305 }
4306 
4307 static void sonypi_compat_exit(void)
4308 {
4309 	misc_deregister(&sonypi_misc_device);
4310 	kfifo_free(&sonypi_compat.fifo);
4311 }
4312 #else
4313 static int sonypi_compat_init(void) { return 0; }
4314 static void sonypi_compat_exit(void) { }
4315 static void sonypi_compat_report_event(u8 event) { }
4316 #endif /* CONFIG_SONYPI_COMPAT */
4317 
4318 /*
4319  * ACPI callbacks
4320  */
4321 static acpi_status
4322 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4323 {
4324 	u32 i;
4325 	struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4326 
4327 	switch (resource->type) {
4328 	case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4329 		{
4330 			/* start IO enumeration */
4331 			struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4332 			if (!ioport)
4333 				return AE_ERROR;
4334 
4335 			list_add(&ioport->list, &dev->ioports);
4336 			return AE_OK;
4337 		}
4338 
4339 	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4340 		/* end IO enumeration */
4341 		return AE_OK;
4342 
4343 	case ACPI_RESOURCE_TYPE_IRQ:
4344 		{
4345 			struct acpi_resource_irq *p = &resource->data.irq;
4346 			struct sony_pic_irq *interrupt = NULL;
4347 			if (!p->interrupt_count) {
4348 				/*
4349 				 * IRQ descriptors may have no IRQ# bits set,
4350 				 * particularly those those w/ _STA disabled
4351 				 */
4352 				dprintk("Blank IRQ resource\n");
4353 				return AE_OK;
4354 			}
4355 			for (i = 0; i < p->interrupt_count; i++) {
4356 				if (!p->interrupts[i]) {
4357 					pr_warn("Invalid IRQ %d\n",
4358 						p->interrupts[i]);
4359 					continue;
4360 				}
4361 				interrupt = kzalloc(sizeof(*interrupt),
4362 						GFP_KERNEL);
4363 				if (!interrupt)
4364 					return AE_ERROR;
4365 
4366 				list_add(&interrupt->list, &dev->interrupts);
4367 				interrupt->irq.triggering = p->triggering;
4368 				interrupt->irq.polarity = p->polarity;
4369 				interrupt->irq.shareable = p->shareable;
4370 				interrupt->irq.interrupt_count = 1;
4371 				interrupt->irq.interrupts[0] = p->interrupts[i];
4372 			}
4373 			return AE_OK;
4374 		}
4375 	case ACPI_RESOURCE_TYPE_IO:
4376 		{
4377 			struct acpi_resource_io *io = &resource->data.io;
4378 			struct sony_pic_ioport *ioport =
4379 				list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4380 			if (!ioport->io1.minimum) {
4381 				memcpy(&ioport->io1, io, sizeof(*io));
4382 				dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4383 						ioport->io1.address_length);
4384 			}
4385 			else if (!ioport->io2.minimum) {
4386 				memcpy(&ioport->io2, io, sizeof(*io));
4387 				dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4388 						ioport->io2.address_length);
4389 			}
4390 			else {
4391 				pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4392 				return AE_ERROR;
4393 			}
4394 			return AE_OK;
4395 		}
4396 
4397 	case ACPI_RESOURCE_TYPE_END_TAG:
4398 		return AE_OK;
4399 
4400 	default:
4401 		dprintk("Resource %d isn't an IRQ nor an IO port\n",
4402 			resource->type);
4403 		return AE_CTRL_TERMINATE;
4404 
4405 	}
4406 }
4407 
4408 static int sony_pic_possible_resources(struct acpi_device *device)
4409 {
4410 	int result = 0;
4411 	acpi_status status = AE_OK;
4412 
4413 	if (!device)
4414 		return -EINVAL;
4415 
4416 	/* get device status */
4417 	/* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4418 	dprintk("Evaluating _STA\n");
4419 	result = acpi_bus_get_status(device);
4420 	if (result) {
4421 		pr_warn("Unable to read status\n");
4422 		goto end;
4423 	}
4424 
4425 	if (!device->status.enabled)
4426 		dprintk("Device disabled\n");
4427 	else
4428 		dprintk("Device enabled\n");
4429 
4430 	/*
4431 	 * Query and parse 'method'
4432 	 */
4433 	dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4434 	status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4435 			sony_pic_read_possible_resource, &spic_dev);
4436 	if (ACPI_FAILURE(status)) {
4437 		pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4438 		result = -ENODEV;
4439 	}
4440 end:
4441 	return result;
4442 }
4443 
4444 /*
4445  *  Disable the spic device by calling its _DIS method
4446  */
4447 static int sony_pic_disable(struct acpi_device *device)
4448 {
4449 	acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4450 					       NULL);
4451 
4452 	if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4453 		return -ENXIO;
4454 
4455 	dprintk("Device disabled\n");
4456 	return 0;
4457 }
4458 
4459 
4460 /*
4461  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4462  *
4463  *  Call _SRS to set current resources
4464  */
4465 static int sony_pic_enable(struct acpi_device *device,
4466 		struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4467 {
4468 	acpi_status status;
4469 	int result = 0;
4470 	/* Type 1 resource layout is:
4471 	 *    IO
4472 	 *    IO
4473 	 *    IRQNoFlags
4474 	 *    End
4475 	 *
4476 	 * Type 2 and 3 resource layout is:
4477 	 *    IO
4478 	 *    IRQNoFlags
4479 	 *    End
4480 	 */
4481 	struct {
4482 		struct acpi_resource res1;
4483 		struct acpi_resource res2;
4484 		struct acpi_resource res3;
4485 		struct acpi_resource res4;
4486 	} *resource;
4487 	struct acpi_buffer buffer = { 0, NULL };
4488 
4489 	if (!ioport || !irq)
4490 		return -EINVAL;
4491 
4492 	/* init acpi_buffer */
4493 	resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4494 	if (!resource)
4495 		return -ENOMEM;
4496 
4497 	buffer.length = sizeof(*resource) + 1;
4498 	buffer.pointer = resource;
4499 
4500 	/* setup Type 1 resources */
4501 	if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4502 
4503 		/* setup io resources */
4504 		resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4505 		resource->res1.length = sizeof(struct acpi_resource);
4506 		memcpy(&resource->res1.data.io, &ioport->io1,
4507 				sizeof(struct acpi_resource_io));
4508 
4509 		resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4510 		resource->res2.length = sizeof(struct acpi_resource);
4511 		memcpy(&resource->res2.data.io, &ioport->io2,
4512 				sizeof(struct acpi_resource_io));
4513 
4514 		/* setup irq resource */
4515 		resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4516 		resource->res3.length = sizeof(struct acpi_resource);
4517 		memcpy(&resource->res3.data.irq, &irq->irq,
4518 				sizeof(struct acpi_resource_irq));
4519 		/* we requested a shared irq */
4520 		resource->res3.data.irq.shareable = ACPI_SHARED;
4521 
4522 		resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4523 		resource->res4.length = sizeof(struct acpi_resource);
4524 	}
4525 	/* setup Type 2/3 resources */
4526 	else {
4527 		/* setup io resource */
4528 		resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4529 		resource->res1.length = sizeof(struct acpi_resource);
4530 		memcpy(&resource->res1.data.io, &ioport->io1,
4531 				sizeof(struct acpi_resource_io));
4532 
4533 		/* setup irq resource */
4534 		resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4535 		resource->res2.length = sizeof(struct acpi_resource);
4536 		memcpy(&resource->res2.data.irq, &irq->irq,
4537 				sizeof(struct acpi_resource_irq));
4538 		/* we requested a shared irq */
4539 		resource->res2.data.irq.shareable = ACPI_SHARED;
4540 
4541 		resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4542 		resource->res3.length = sizeof(struct acpi_resource);
4543 	}
4544 
4545 	/* Attempt to set the resource */
4546 	dprintk("Evaluating _SRS\n");
4547 	status = acpi_set_current_resources(device->handle, &buffer);
4548 
4549 	/* check for total failure */
4550 	if (ACPI_FAILURE(status)) {
4551 		pr_err("Error evaluating _SRS\n");
4552 		result = -ENODEV;
4553 		goto end;
4554 	}
4555 
4556 	/* Necessary device initializations calls (from sonypi) */
4557 	sony_pic_call1(0x82);
4558 	sony_pic_call2(0x81, 0xff);
4559 	sony_pic_call1(compat ? 0x92 : 0x82);
4560 
4561 end:
4562 	kfree(resource);
4563 	return result;
4564 }
4565 
4566 /*****************
4567  *
4568  * ISR: some event is available
4569  *
4570  *****************/
4571 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4572 {
4573 	int i, j;
4574 	u8 ev = 0;
4575 	u8 data_mask = 0;
4576 	u8 device_event = 0;
4577 
4578 	struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4579 
4580 	ev = inb_p(dev->cur_ioport->io1.minimum);
4581 	if (dev->cur_ioport->io2.minimum)
4582 		data_mask = inb_p(dev->cur_ioport->io2.minimum);
4583 	else
4584 		data_mask = inb_p(dev->cur_ioport->io1.minimum +
4585 				dev->evport_offset);
4586 
4587 	dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4588 			ev, data_mask, dev->cur_ioport->io1.minimum,
4589 			dev->evport_offset);
4590 
4591 	if (ev == 0x00 || ev == 0xff)
4592 		return IRQ_HANDLED;
4593 
4594 	for (i = 0; dev->event_types[i].mask; i++) {
4595 
4596 		if ((data_mask & dev->event_types[i].data) !=
4597 		    dev->event_types[i].data)
4598 			continue;
4599 
4600 		if (!(mask & dev->event_types[i].mask))
4601 			continue;
4602 
4603 		for (j = 0; dev->event_types[i].events[j].event; j++) {
4604 			if (ev == dev->event_types[i].events[j].data) {
4605 				device_event =
4606 					dev->event_types[i].events[j].event;
4607 				/* some events may require ignoring */
4608 				if (!device_event)
4609 					return IRQ_HANDLED;
4610 				goto found;
4611 			}
4612 		}
4613 	}
4614 	/* Still not able to decode the event try to pass
4615 	 * it over to the minidriver
4616 	 */
4617 	if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4618 		return IRQ_HANDLED;
4619 
4620 	dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4621 			ev, data_mask, dev->cur_ioport->io1.minimum,
4622 			dev->evport_offset);
4623 	return IRQ_HANDLED;
4624 
4625 found:
4626 	sony_laptop_report_input_event(device_event);
4627 	sonypi_compat_report_event(device_event);
4628 	return IRQ_HANDLED;
4629 }
4630 
4631 /*****************
4632  *
4633  *  ACPI driver
4634  *
4635  *****************/
4636 static void sony_pic_remove(struct acpi_device *device)
4637 {
4638 	struct sony_pic_ioport *io, *tmp_io;
4639 	struct sony_pic_irq *irq, *tmp_irq;
4640 
4641 	if (sony_pic_disable(device)) {
4642 		pr_err("Couldn't disable device\n");
4643 		return;
4644 	}
4645 
4646 	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4647 	release_region(spic_dev.cur_ioport->io1.minimum,
4648 			spic_dev.cur_ioport->io1.address_length);
4649 	if (spic_dev.cur_ioport->io2.minimum)
4650 		release_region(spic_dev.cur_ioport->io2.minimum,
4651 				spic_dev.cur_ioport->io2.address_length);
4652 
4653 	sonypi_compat_exit();
4654 
4655 	sony_laptop_remove_input();
4656 
4657 	/* pf attrs */
4658 	sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4659 	sony_pf_remove();
4660 
4661 	list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4662 		list_del(&io->list);
4663 		kfree(io);
4664 	}
4665 	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4666 		list_del(&irq->list);
4667 		kfree(irq);
4668 	}
4669 	spic_dev.cur_ioport = NULL;
4670 	spic_dev.cur_irq = NULL;
4671 
4672 	dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4673 }
4674 
4675 static int sony_pic_add(struct acpi_device *device)
4676 {
4677 	int result;
4678 	struct sony_pic_ioport *io, *tmp_io;
4679 	struct sony_pic_irq *irq, *tmp_irq;
4680 
4681 	spic_dev.acpi_dev = device;
4682 	strcpy(acpi_device_class(device), "sony/hotkey");
4683 	sony_pic_detect_device_type(&spic_dev);
4684 	mutex_init(&spic_dev.lock);
4685 
4686 	/* read _PRS resources */
4687 	result = sony_pic_possible_resources(device);
4688 	if (result) {
4689 		pr_err("Unable to read possible resources\n");
4690 		goto err_free_resources;
4691 	}
4692 
4693 	/* setup input devices and helper fifo */
4694 	result = sony_laptop_setup_input(device);
4695 	if (result) {
4696 		pr_err("Unable to create input devices\n");
4697 		goto err_free_resources;
4698 	}
4699 
4700 	result = sonypi_compat_init();
4701 	if (result)
4702 		goto err_remove_input;
4703 
4704 	/* request io port */
4705 	list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4706 		if (request_region(io->io1.minimum, io->io1.address_length,
4707 					"Sony Programmable I/O Device")) {
4708 			dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4709 					io->io1.minimum, io->io1.maximum,
4710 					io->io1.address_length);
4711 			/* Type 1 have 2 ioports */
4712 			if (io->io2.minimum) {
4713 				if (request_region(io->io2.minimum,
4714 						io->io2.address_length,
4715 						"Sony Programmable I/O Device")) {
4716 					dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4717 							io->io2.minimum, io->io2.maximum,
4718 							io->io2.address_length);
4719 					spic_dev.cur_ioport = io;
4720 					break;
4721 				}
4722 				else {
4723 					dprintk("Unable to get I/O port2: "
4724 							"0x%.4x (0x%.4x) + 0x%.2x\n",
4725 							io->io2.minimum, io->io2.maximum,
4726 							io->io2.address_length);
4727 					release_region(io->io1.minimum,
4728 							io->io1.address_length);
4729 				}
4730 			}
4731 			else {
4732 				spic_dev.cur_ioport = io;
4733 				break;
4734 			}
4735 		}
4736 	}
4737 	if (!spic_dev.cur_ioport) {
4738 		pr_err("Failed to request_region\n");
4739 		result = -ENODEV;
4740 		goto err_remove_compat;
4741 	}
4742 
4743 	/* request IRQ */
4744 	list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4745 		if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4746 					0, "sony-laptop", &spic_dev)) {
4747 			dprintk("IRQ: %d - triggering: %d - "
4748 					"polarity: %d - shr: %d\n",
4749 					irq->irq.interrupts[0],
4750 					irq->irq.triggering,
4751 					irq->irq.polarity,
4752 					irq->irq.shareable);
4753 			spic_dev.cur_irq = irq;
4754 			break;
4755 		}
4756 	}
4757 	if (!spic_dev.cur_irq) {
4758 		pr_err("Failed to request_irq\n");
4759 		result = -ENODEV;
4760 		goto err_release_region;
4761 	}
4762 
4763 	/* set resource status _SRS */
4764 	result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4765 	if (result) {
4766 		pr_err("Couldn't enable device\n");
4767 		goto err_free_irq;
4768 	}
4769 
4770 	spic_dev.bluetooth_power = -1;
4771 	/* create device attributes */
4772 	result = sony_pf_add();
4773 	if (result)
4774 		goto err_disable_device;
4775 
4776 	result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4777 	if (result)
4778 		goto err_remove_pf;
4779 
4780 	pr_info("SPIC setup done.\n");
4781 	return 0;
4782 
4783 err_remove_pf:
4784 	sony_pf_remove();
4785 
4786 err_disable_device:
4787 	sony_pic_disable(device);
4788 
4789 err_free_irq:
4790 	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4791 
4792 err_release_region:
4793 	release_region(spic_dev.cur_ioport->io1.minimum,
4794 			spic_dev.cur_ioport->io1.address_length);
4795 	if (spic_dev.cur_ioport->io2.minimum)
4796 		release_region(spic_dev.cur_ioport->io2.minimum,
4797 				spic_dev.cur_ioport->io2.address_length);
4798 
4799 err_remove_compat:
4800 	sonypi_compat_exit();
4801 
4802 err_remove_input:
4803 	sony_laptop_remove_input();
4804 
4805 err_free_resources:
4806 	list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4807 		list_del(&io->list);
4808 		kfree(io);
4809 	}
4810 	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4811 		list_del(&irq->list);
4812 		kfree(irq);
4813 	}
4814 	spic_dev.cur_ioport = NULL;
4815 	spic_dev.cur_irq = NULL;
4816 
4817 	return result;
4818 }
4819 
4820 #ifdef CONFIG_PM_SLEEP
4821 static int sony_pic_suspend(struct device *dev)
4822 {
4823 	if (sony_pic_disable(to_acpi_device(dev)))
4824 		return -ENXIO;
4825 	return 0;
4826 }
4827 
4828 static int sony_pic_resume(struct device *dev)
4829 {
4830 	sony_pic_enable(to_acpi_device(dev),
4831 			spic_dev.cur_ioport, spic_dev.cur_irq);
4832 	return 0;
4833 }
4834 #endif
4835 
4836 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4837 
4838 static const struct acpi_device_id sony_pic_device_ids[] = {
4839 	{SONY_PIC_HID, 0},
4840 	{"", 0},
4841 };
4842 
4843 static struct acpi_driver sony_pic_driver = {
4844 	.name = SONY_PIC_DRIVER_NAME,
4845 	.class = SONY_PIC_CLASS,
4846 	.ids = sony_pic_device_ids,
4847 	.owner = THIS_MODULE,
4848 	.ops = {
4849 		.add = sony_pic_add,
4850 		.remove = sony_pic_remove,
4851 		},
4852 	.drv.pm = &sony_pic_pm,
4853 };
4854 
4855 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4856 	{
4857 		.ident = "Sony Vaio",
4858 		.matches = {
4859 			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4860 			DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4861 		},
4862 	},
4863 	{
4864 		.ident = "Sony Vaio",
4865 		.matches = {
4866 			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4867 			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4868 		},
4869 	},
4870 	{ }
4871 };
4872 
4873 static int __init sony_laptop_init(void)
4874 {
4875 	int result;
4876 
4877 	if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4878 		result = acpi_bus_register_driver(&sony_pic_driver);
4879 		if (result) {
4880 			pr_err("Unable to register SPIC driver\n");
4881 			goto out;
4882 		}
4883 		spic_drv_registered = 1;
4884 	}
4885 
4886 	result = acpi_bus_register_driver(&sony_nc_driver);
4887 	if (result) {
4888 		pr_err("Unable to register SNC driver\n");
4889 		goto out_unregister_pic;
4890 	}
4891 
4892 	return 0;
4893 
4894 out_unregister_pic:
4895 	if (spic_drv_registered)
4896 		acpi_bus_unregister_driver(&sony_pic_driver);
4897 out:
4898 	return result;
4899 }
4900 
4901 static void __exit sony_laptop_exit(void)
4902 {
4903 	acpi_bus_unregister_driver(&sony_nc_driver);
4904 	if (spic_drv_registered)
4905 		acpi_bus_unregister_driver(&sony_pic_driver);
4906 }
4907 
4908 module_init(sony_laptop_init);
4909 module_exit(sony_laptop_exit);
4910