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(dev: kp.dev, code: kp.key, value: 0);
362	input_sync(dev: 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(timer: &sony_laptop_input.release_key_timer,
368	expires: jiffies + msecs_to_jiffies(m: 10));
369
370	spin_unlock_irqrestore(lock: &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(dev: jog_dev, REL_WHEEL, value: 1);
393	input_sync(dev: jog_dev);
394	return;
395
396	case SONYPI_EVENT_JOGDIAL_DOWN:
397	case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
398	input_report_rel(dev: jog_dev, REL_WHEEL, value: -1);
399	input_sync(dev: 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(dev: kp.dev, EV_MSC, MSC_SCAN, value: scancode);
426	input_report_key(dev: kp.dev, code: kp.key, value: 1);
427	input_sync(dev: 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(timer: &sony_laptop_input.release_key_timer,
434	expires: jiffies + msecs_to_jiffies(m: 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(i: 1, v: &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(dev: 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(dev: jog_dev, EV_KEY, BTN_MIDDLE);
504	input_set_capability(dev: 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(dev: 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(dev: key_dev);
524
525	err_free_kfifo:
526	kfifo_free(&sony_laptop_input.fifo);
527
528	err_dec_users:
529	atomic_dec(v: &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(v: &sony_laptop_input.users))
539	return;
540
541	del_timer_sync(timer: &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(dev: kp.dev, code: kp.key, value: 0);
550	input_sync(dev: 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(i: 1, v: &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(name: "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(pdev: sony_pf_device);
594	if (ret)
595	goto out_platform_alloced;
596
597	return 0;
598
599	out_platform_alloced:
600	platform_device_put(pdev: sony_pf_device);
601	sony_pf_device = NULL;
602	out_platform_registered:
603	platform_driver_unregister(&sony_pf_driver);
604	out:
605	atomic_dec(v: &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(v: &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(object: handle, pathname: method, parameter_objects: &params, return_object_buffer: &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(object: handle, pathname: method, NULL, return_object_buffer: &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, method: 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(objp: 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, value: &v, buffer: result,
801	buflen: sizeof(*result));
802	} else {
803	ret = sony_nc_buffer_call(handle, name, NULL, buffer: result,
804	buflen: 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(buf: buffer, at: len, fmt: "0x%.4x ", handles->cap[i]);
824	}
825	len += sysfs_emit_at(buf: buffer, at: len, fmt: "\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(size: 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(handle: sony_nc_acpi_handle, name: "SN00", value: &arg,
841	result: &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(device: &pd->dev, entry: &handles->devattr)) {
857	kfree(objp: 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(dev: &pd->dev, attr: &handles->devattr);
871	kfree(objp: 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(handle: sony_nc_acpi_handle, name: "SN07", value: &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(handle: sony_nc_acpi_handle, name: *item->acpiget, NULL,
959	result: &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(buf: buffer, fmt: "%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(s: buffer, base: 10, res: &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(handle: sony_nc_acpi_handle, name: *item->acpiset,
994	value: &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(handle: sony_nc_acpi_handle, name: "SBRT", value: &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(handle: sony_nc_acpi_handle, name: "GBRT", NULL, result: &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(bl_dev: bd);
1037
1038	sony_call_snc_handle(handle: sdev->handle, argument: sdev->cmd_base + 0x100, result: &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(bl_dev: bd);
1048
1049	value = bd->props.brightness + sdev->offset;
1050	if (sony_call_snc_handle(handle: sdev->handle, argument: sdev->cmd_base | (value << 0x10),
1051	result: &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, argument: 0x200, result: &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(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, argument: 0x0100, result: &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, argument: 0x0000, result: &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(handle: sony_nc_acpi_handle, name: "SN05", value: &arg, result: &result);
1264
1265	} else {
1266	/* old style event */
1267	ev_type = HOTKEY;
1268	sony_laptop_report_input_event(event: real_ev);
1269	}
1270	acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1271	dev_name(dev: &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(objp: 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, argument: 0, result: &result);
1315	break;
1316	case 0x0102:
1317	/* setup hotkeys */
1318	sony_call_snc_handle(handle, argument: 0x100, result: &result);
1319	break;
1320	case 0x0105:
1321	case 0x0148:
1322	/* touchpad enable/disable */
1323	result = sony_nc_touchpad_setup(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(pd: 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(handle: sony_nc_acpi_handle, name: "SN00", value: &arg, result: &bitmask))
1419	sony_nc_int_call(handle: sony_nc_acpi_handle, name: "SN02", value: &bitmask,
1420	result: &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(handle: sony_nc_acpi_handle, name: "SN01", NULL, result: &bitmask);
1432	sony_nc_int_call(handle: sony_nc_acpi_handle, name: "SN03", value: &bitmask, result: &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, argument: 0, result: &result);
1522	break;
1523	case 0x0102:
1524	/* re-enable hotkeys */
1525	sony_call_snc_handle(handle, argument: 0x100, result: &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(handle: sony_nc_acpi_handle, name: "SN00", value: &arg, result: &bitmask))
1542	sony_nc_int_call(handle: sony_nc_acpi_handle, name: "SN02", value: &bitmask,
1543	result: &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(handle: sony_nc_acpi_handle, name: *item->acpiset,
1556	value: &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(handle: sony_nc_acpi_handle, name: "ECON")) {
1564	int arg = 1;
1565	if (sony_nc_int_call(handle: sony_nc_acpi_handle, name: "ECON", value: &arg, NULL))
1566	dprintk("ECON Method failed\n");
1567	}
1568
1569	if (acpi_has_method(handle: sony_nc_acpi_handle, name: "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(rfkill: sony_rfkill_devices[i]);
1585	rfkill_destroy(rfkill: 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(handle: sony_rfkill_handle, argument, result: &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, parent: &device->dev, type,
1637	ops: &sony_rfkill_ops, ops_data: (void *)nc_type);
1638	if (!rfk)
1639	return -ENOMEM;
1640
1641	err = sony_call_snc_handle(handle: sony_rfkill_handle, argument: 0x200, result: &result);
1642	if (err < 0) {
1643	rfkill_destroy(rfkill: rfk);
1644	return err;
1645	}
1646	hwblock = !(result & 0x1);
1647
1648	err = sony_call_snc_handle(handle: sony_rfkill_handle,
1649	argument: sony_rfkill_address[nc_type],
1650	result: &result);
1651	if (err < 0) {
1652	rfkill_destroy(rfkill: rfk);
1653	return err;
1654	}
1655	swblock = !(result & 0x2);
1656
1657	rfkill_init_sw_state(rfkill: rfk, blocked: swblock);
1658	rfkill_set_hw_state(rfkill: rfk, blocked: hwblock);
1659
1660	err = rfkill_register(rfkill: rfk);
1661	if (err) {
1662	rfkill_destroy(rfkill: 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(handle: sony_rfkill_handle, argument: 0x200, result: &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(rfkill: sony_rfkill_devices[i], blocked: true)) {
1686	/* we already know we're blocked */
1687	}
1688	continue;
1689	}
1690
1691	sony_call_snc_handle(handle: sony_rfkill_handle, argument, result: &result);
1692	rfkill_set_states(rfkill: sony_rfkill_devices[i],
1693	sw: !(result & 0x2), hw: 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(handle: sony_nc_acpi_handle, name: "SN06", value: &offset, buffer,
1708	buflen: 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, nc_type: SONY_WIFI);
1740
1741	if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1742	sony_nc_setup_rfkill(device, nc_type: 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, nc_type: SONY_WWAN);
1748
1749	if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1750	sony_nc_setup_rfkill(device, nc_type: 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(handle: kbdbl_ctl->handle,
1776	argument: (value << 0x10) | (kbdbl_ctl->base), result: &result))
1777	return -EIO;
1778
1779	/* Try to turn the light on/off immediately */
1780	if (value != 1)
1781	sony_call_snc_handle(handle: kbdbl_ctl->handle,
1782	argument: (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1783	result: &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(s: buffer, base: 10, res: &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(buf: buffer, fmt: "%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(handle: kbdbl_ctl->handle, argument: (value << 0x10) |
1824	(kbdbl_ctl->base + 0x200), result: &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(s: buffer, base: 10, res: &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(buf: buffer, fmt: "%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, argument: probe_base, result: &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(size: 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(device: &pd->dev, entry: &kbdbl_ctl->mode_attr);
1925	if (ret)
1926	goto outkzalloc;
1927
1928	__sony_nc_kbd_backlight_mode_set(value: 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(device: &pd->dev, entry: &kbdbl_ctl->timeout_attr);
1940	if (ret)
1941	goto outmode;
1942
1943	__sony_nc_kbd_backlight_timeout_set(value: kbdbl_ctl->timeout);
1944	}
1945
1946
1947	return 0;
1948
1949	outmode:
1950	device_remove_file(dev: &pd->dev, attr: &kbdbl_ctl->mode_attr);
1951	outkzalloc:
1952	kfree(objp: 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(dev: &pd->dev, attr: &kbdbl_ctl->mode_attr);
1962	if (kbdbl_ctl->has_timeout)
1963	device_remove_file(dev: &pd->dev, attr: &kbdbl_ctl->timeout_attr);
1964	kfree(objp: 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(s: buffer, base: 10, res: &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(handle: bcare_ctl->handle, argument: cmd | 0x0100, result: &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(handle: bcare_ctl->handle, argument: 0x0000, result: &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(buf: buffer, fmt: "%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(handle: bcare_ctl->handle, argument: 0x0200, result: &health))
2065	return -EIO;
2066
2067	return sysfs_emit(buf: buffer, fmt: "%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(size: 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(device: &pd->dev, entry: &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(device: &pd->dev, entry: &bcare_ctl->attrs[1]);
2101	if (ret)
2102	goto outlimiter;
2103
2104	return 0;
2105
2106	outlimiter:
2107	device_remove_file(dev: &pd->dev, attr: &bcare_ctl->attrs[0]);
2108
2109	outkzalloc:
2110	kfree(objp: 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(dev: &pd->dev, attr: &bcare_ctl->attrs[0]);
2120	if (bcare_ctl->handle != 0x0115)
2121	device_remove_file(dev: &pd->dev, attr: &bcare_ctl->attrs[1]);
2122
2123	kfree(objp: 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(handle: 0x0122, argument: mode << 0x10 | 0x0200, result: &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(handle: 0x0122, argument: 0x0100, result: &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(buf: buffer, at: idx, fmt: "%s ", snc_thermal_profiles[cnt]);
2183	}
2184	idx += sysfs_emit_at(buf: buffer, at: idx, fmt: "\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(mode: 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(buf: buffer, fmt: "%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(size: sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2228	if (!th_handle)
2229	return -ENOMEM;
2230
2231	ret = sony_call_snc_handle(handle: 0x0122, argument: 0x0000, result: &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(device: &pd->dev, entry: &th_handle->profiles_attr);
2256	if (ret)
2257	goto outkzalloc;
2258
2259	ret = device_create_file(device: &pd->dev, entry: &th_handle->mode_attr);
2260	if (ret)
2261	goto outprofiles;
2262
2263	return 0;
2264
2265	outprofiles:
2266	device_remove_file(dev: &pd->dev, attr: &th_handle->profiles_attr);
2267	outkzalloc:
2268	kfree(objp: 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(dev: &pd->dev, attr: &th_handle->profiles_attr);
2277	device_remove_file(dev: &pd->dev, attr: &th_handle->mode_attr);
2278	kfree(objp: 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(mode: 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(s: buffer, base: 10, res: &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(handle: lid_ctl->handle, argument: value << 0x10 | 0x0100,
2343	result: &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(buf: buffer, fmt: "%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, argument: 0x0000, result: &result))
2373	return -EIO;
2374
2375	lid_ctl = kzalloc(size: 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(device: &pd->dev, entry: &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(dev: &pd->dev, attr: &lid_ctl->attrs[i]);
2413
2414	kfree(objp: 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(dev: &pd->dev, attr: &lid_ctl->attrs[i]);
2430	}
2431
2432	kfree(objp: 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(handle: gfxs_ctl->handle,
2455	argument: gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2456	result: &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(buf: buffer, fmt: "%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(size: 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(device: &pd->dev, entry: &gfxs_ctl->attr);
2514	if (result)
2515	goto gfxerror;
2516
2517	return 0;
2518
2519	gfxerror:
2520	kfree(objp: 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(dev: &pd->dev, attr: &gfxs_ctl->attr);
2530
2531	kfree(objp: 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(s: buffer, base: 10, res: &value) || value > 1)
2550	return -EINVAL;
2551
2552	if (sony_call_snc_handle(handle: 0x0131, argument: value << 0x10 | 0x0200, result: &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(handle: 0x0131, argument: 0x0100, result: &result))
2564	return -EIO;
2565
2566	return sysfs_emit(buf: buffer, fmt: "%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(handle: 0x0131, argument: 0x0000, result: &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(size: 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(device: &pd->dev, entry: hsc_handle);
2592	if (result) {
2593	kfree(objp: 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(dev: &pd->dev, attr: hsc_handle);
2605	kfree(objp: 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(s: buffer, base: 10, res: &value) || value > 1)
2624	return -EINVAL;
2625
2626	if (sony_call_snc_handle(handle: 0x0121, argument: value << 8, result: &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(handle: 0x0121, argument: 0x0200, result: &result))
2638	return -EIO;
2639
2640	return sysfs_emit(buf: buffer, fmt: "%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(size: 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(device: &pd->dev, entry: lowbatt_handle);
2658	if (result) {
2659	kfree(objp: 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(dev: &pd->dev, attr: lowbatt_handle);
2671	kfree(objp: 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(s: buffer, base: 10, res: &value) || value > 1)
2690	return -EINVAL;
2691
2692	if (sony_call_snc_handle(handle: 0x0149, argument: value << 0x10 | 0x0200, result: &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(handle: 0x0149, argument: 0x0100, result: &result))
2704	return -EIO;
2705
2706	return sysfs_emit(buf: buffer, fmt: "%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(handle: 0x0149, argument: 0x0300, result: &result))
2715	return -EIO;
2716
2717	return sysfs_emit(buf: buffer, fmt: "%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(size: sizeof(struct device_attribute), GFP_KERNEL);
2725	if (!fan_handle)
2726	return -ENOMEM;
2727
2728	hsf_handle = kzalloc(size: 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(device: &pd->dev, entry: fan_handle);
2747	if (result)
2748	goto out_fan_handle;
2749
2750	result = device_create_file(device: &pd->dev, entry: hsf_handle);
2751	if (result)
2752	goto out_hsf_handle;
2753
2754	return 0;
2755
2756	out_hsf_handle:
2757	device_remove_file(dev: &pd->dev, attr: fan_handle);
2758
2759	out_fan_handle:
2760	kfree(objp: hsf_handle);
2761	hsf_handle = NULL;
2762
2763	out_hsf_handle_alloc:
2764	kfree(objp: 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(dev: &pd->dev, attr: fan_handle);
2773	kfree(objp: fan_handle);
2774	fan_handle = NULL;
2775	}
2776	if (hsf_handle) {
2777	device_remove_file(dev: &pd->dev, attr: hsf_handle);
2778	kfree(objp: 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(s: buffer, base: 10, res: &value) || value > 1)
2797	return -EINVAL;
2798
2799	if (sony_call_snc_handle(handle: 0x0155, argument: value << 0x10 | 0x0100, result: &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(handle: 0x0155, argument: 0x0000, result: &result))
2811	return -EIO;
2812
2813	return sysfs_emit(buf: buffer, fmt: "%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(handle: 0x0155, argument: 0x0000, result: &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(size: 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(device: &pd->dev, entry: uc_handle);
2839	if (result) {
2840	kfree(objp: 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(dev: &pd->dev, attr: uc_handle);
2852	kfree(objp: 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(handle: 0x011D, argument: 0x0000, result: &result))
2866	return -EIO;
2867
2868	return sysfs_emit(buf: buffer, fmt: "%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(size: 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(device: &pd->dev, entry: panel_handle);
2886	if (result) {
2887	kfree(objp: 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(dev: &pd->dev, attr: panel_handle);
2899	kfree(objp: 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(s: buffer, base: 10, res: &value) || value > 1)
2918	return -EINVAL;
2919
2920	if (sony_call_snc_handle(handle: 0x0168, argument: value << 0x10, result: &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(size: 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(device: &pd->dev, entry: sc_handle);
2941	if (result) {
2942	kfree(objp: 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(dev: &pd->dev, attr: sc_handle);
2954	kfree(objp: 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(s: buffer, base: 10, res: &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(handle: tp_ctl->handle,
2982	argument: (!value << 0x10) | 0x100, result: &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(handle: tp_ctl->handle, argument: 0x000, result: &result))
2994	return -EINVAL;
2995
2996	return sysfs_emit(buf: buffer, fmt: "%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(size: 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(device: &pd->dev, entry: &tp_ctl->attr);
3017	if (ret) {
3018	kfree(objp: 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(dev: &pd->dev, attr: &tp_ctl->attr);
3029	kfree(objp: 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(handle: sony_nc_acpi_handle, name: "SN06", value: &offset, buffer,
3053	buflen: 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(handle: 0x12f) >= 0) {
3098	ops = &sony_backlight_ng_ops;
3099	sony_bl_props.cmd_base = 0x0100;
3100	sony_nc_backlight_ng_read_limits(handle: 0x12f, props: &sony_bl_props);
3101	max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3102
3103	} else if (sony_find_snc_handle(handle: 0x137) >= 0) {
3104	ops = &sony_backlight_ng_ops;
3105	sony_bl_props.cmd_base = 0x0100;
3106	sony_nc_backlight_ng_read_limits(handle: 0x137, props: &sony_bl_props);
3107	max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3108
3109	} else if (sony_find_snc_handle(handle: 0x143) >= 0) {
3110	ops = &sony_backlight_ng_ops;
3111	sony_bl_props.cmd_base = 0x3000;
3112	sony_nc_backlight_ng_read_limits(handle: 0x143, props: &sony_bl_props);
3113	max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3114
3115	} else if (sony_find_snc_handle(handle: 0x14b) >= 0) {
3116	ops = &sony_backlight_ng_ops;
3117	sony_bl_props.cmd_base = 0x3000;
3118	sony_nc_backlight_ng_read_limits(handle: 0x14b, props: &sony_bl_props);
3119	max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3120
3121	} else if (sony_find_snc_handle(handle: 0x14c) >= 0) {
3122	ops = &sony_backlight_ng_ops;
3123	sony_bl_props.cmd_base = 0x3000;
3124	sony_nc_backlight_ng_read_limits(handle: 0x14c, props: &sony_bl_props);
3125	max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3126
3127	} else if (acpi_has_method(handle: sony_nc_acpi_handle, name: "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(name: "sony", NULL,
3138	devdata: &sony_bl_props,
3139	ops, props: &props);
3140
3141	if (IS_ERR(ptr: 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(bd: 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), q: "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	start_object: sony_nc_acpi_handle, max_depth: 1, descending_callback: 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(acpi_device: device);
3190	if (result) {
3191	pr_err("Unable to create input devices\n");
3192	goto outplatform;
3193	}
3194
3195	if (acpi_has_method(handle: sony_nc_acpi_handle, name: "ECON")) {
3196	int arg = 1;
3197	if (sony_nc_int_call(handle: sony_nc_acpi_handle, name: "ECON", value: &arg, NULL))
3198	dprintk("ECON Method failed\n");
3199	}
3200
3201	if (acpi_has_method(handle: sony_nc_acpi_handle, name: "SN00")) {
3202	dprintk("Doing SNC setup\n");
3203	/* retrieve the available handles */
3204	result = sony_nc_handles_setup(pd: sony_pf_device);
3205	if (!result)
3206	sony_nc_function_setup(device, pf_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(handle: sony_nc_acpi_handle,
3221	name: *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(handle: sony_nc_acpi_handle,
3232	name: *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(device: &sony_pf_device->dev,
3243	entry: &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(dev: &sony_pf_device->dev, attr: &item->devattr);
3255	}
3256	sony_nc_backlight_cleanup();
3257	sony_nc_function_cleanup(pd: sony_pf_device);
3258	sony_nc_handles_cleanup(pd: 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(dev: &sony_pf_device->dev, attr: &item->devattr);
3281	}
3282
3283	sony_nc_function_cleanup(pd: sony_pf_device);
3284	sony_nc_handles_cleanup(pd: 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(value: dev, port: spic_dev.cur_ioport->io1.minimum + 4);
3603	v1 = inb_p(port: spic_dev.cur_ioport->io1.minimum + 4);
3604	v2 = inb_p(port: 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(value: dev, port: 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(value: fn, port: spic_dev.cur_ioport->io1.minimum);
3619	v1 = inb_p(port: 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(value: dev, port: 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(value: fn, port: spic_dev.cur_ioport->io1.minimum);
3632	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3633	outb(value: v, port: spic_dev.cur_ioport->io1.minimum);
3634	v1 = inb_p(port: 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(dev: 0xA0);
3655	else if (ev == 0x61)
3656	sony_pic_call1(dev: 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(dev: 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(dev: 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(dev: 0x91, fn: 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(dev: 0x91, fn: 0x1); x++)
3800	msleep(msecs: 10);
3801	sony_pic_call1(dev: 0x93);
3802
3803	for (i = 400; i > 0; i--) {
3804	if (__sony_pic_camera_ready())
3805	break;
3806	msleep(msecs: 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(lock: &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(dev: 0xB0, fn: state);
3884	sony_pic_call1(dev: 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(s: buffer, base: 10, res: &value))
3897	return -EINVAL;
3898
3899	mutex_lock(&spic_dev.lock);
3900	__sony_pic_set_wwanpower(state: value);
3901	mutex_unlock(lock: &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(buf: buffer, fmt: "%d\n", spic_dev.wwan_power);
3912	mutex_unlock(lock: &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(dev: 0x96, fn: state);
3923	sony_pic_call1(dev: 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(s: buffer, base: 10, res: &value))
3936	return -EINVAL;
3937
3938	mutex_lock(&spic_dev.lock);
3939	__sony_pic_set_bluetoothpower(state: value);
3940	mutex_unlock(lock: &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(buf: buffer, fmt: "%d\n", spic_dev.bluetooth_power);
3951	mutex_unlock(lock: &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, val: value);
3961	}
3962
3963	static int sony_pic_get_fanspeed(u8 *value)
3964	{
3965	return ec_read(SONY_PIC_FAN0_STATUS, val: 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(s: buffer, base: 10, res: &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: &value))
3990	return -EIO;
3991
3992	return sysfs_emit(buf: buffer, fmt: "%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(v: &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(v: &sonypi_compat.open_count) == 1)
4063	kfifo_reset(&sonypi_compat.fifo);
4064
4065	spin_unlock_irqrestore(lock: &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(f: file);
4095	inode_set_atime_to_ts(inode, ts: 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(filp: file, wait_address: &sonypi_compat.fifo_proc_list, p: 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: &val_lb))
4113	return -1;
4114	if (ec_read(addr: addr + 1, val: &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(handle: sony_nc_acpi_handle, name: "GBRT", NULL,
4137	result: &value)) {
4138	ret = -EIO;
4139	break;
4140	}
4141	val8 = ((value & 0xff) - 1) << 5;
4142	if (copy_to_user(to: argp, from: &val8, n: 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(to: &val8, from: argp, n: sizeof(val8))) {
4151	ret = -EFAULT;
4152	break;
4153	}
4154	value = (val8 >> 5) + 1;
4155	if (sony_nc_int_call(handle: sony_nc_acpi_handle, name: "SBRT", value: &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(bd: sony_bl_props.dev);
4163	break;
4164	case SONYPI_IOCGBAT1CAP:
4165	if (ec_read16(SONYPI_BAT1_FULL, value: &val16)) {
4166	ret = -EIO;
4167	break;
4168	}
4169	if (copy_to_user(to: argp, from: &val16, n: sizeof(val16)))
4170	ret = -EFAULT;
4171	break;
4172	case SONYPI_IOCGBAT1REM:
4173	if (ec_read16(SONYPI_BAT1_LEFT, value: &val16)) {
4174	ret = -EIO;
4175	break;
4176	}
4177	if (copy_to_user(to: argp, from: &val16, n: sizeof(val16)))
4178	ret = -EFAULT;
4179	break;
4180	case SONYPI_IOCGBAT2CAP:
4181	if (ec_read16(SONYPI_BAT2_FULL, value: &val16)) {
4182	ret = -EIO;
4183	break;
4184	}
4185	if (copy_to_user(to: argp, from: &val16, n: sizeof(val16)))
4186	ret = -EFAULT;
4187	break;
4188	case SONYPI_IOCGBAT2REM:
4189	if (ec_read16(SONYPI_BAT2_LEFT, value: &val16)) {
4190	ret = -EIO;
4191	break;
4192	}
4193	if (copy_to_user(to: argp, from: &val16, n: sizeof(val16)))
4194	ret = -EFAULT;
4195	break;
4196	case SONYPI_IOCGBATFLAGS:
4197	if (ec_read(SONYPI_BAT_FLAGS, val: &val8)) {
4198	ret = -EIO;
4199	break;
4200	}
4201	val8 &= 0x07;
4202	if (copy_to_user(to: argp, from: &val8, n: sizeof(val8)))
4203	ret = -EFAULT;
4204	break;
4205	case SONYPI_IOCGBLUE:
4206	val8 = spic_dev.bluetooth_power;
4207	if (copy_to_user(to: argp, from: &val8, n: sizeof(val8)))
4208	ret = -EFAULT;
4209	break;
4210	case SONYPI_IOCSBLUE:
4211	if (copy_from_user(to: &val8, from: argp, n: sizeof(val8))) {
4212	ret = -EFAULT;
4213	break;
4214	}
4215	__sony_pic_set_bluetoothpower(state: val8);
4216	break;
4217	/* FAN Controls */
4218	case SONYPI_IOCGFAN:
4219	if (sony_pic_get_fanspeed(value: &val8)) {
4220	ret = -EIO;
4221	break;
4222	}
4223	if (copy_to_user(to: argp, from: &val8, n: sizeof(val8)))
4224	ret = -EFAULT;
4225	break;
4226	case SONYPI_IOCSFAN:
4227	if (copy_from_user(to: &val8, from: argp, n: sizeof(val8))) {
4228	ret = -EFAULT;
4229	break;
4230	}
4231	if (sony_pic_set_fanspeed(value: val8))
4232	ret = -EIO;
4233	break;
4234	/* GET Temperature (useful under APM) */
4235	case SONYPI_IOCGTEMP:
4236	if (ec_read(SONYPI_TEMP_STATUS, val: &val8)) {
4237	ret = -EIO;
4238	break;
4239	}
4240	if (copy_to_user(to: argp, from: &val8, n: sizeof(val8)))
4241	ret = -EFAULT;
4242	break;
4243	default:
4244	ret = -EINVAL;
4245	}
4246	mutex_unlock(lock: &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(misc: &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(misc: &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(size: sizeof(*ioport), GFP_KERNEL);
4332	if (!ioport)
4333	return AE_ERROR;
4334
4335	list_add(new: &ioport->list, head: &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(size: sizeof(*interrupt),
4362	GFP_KERNEL);
4363	if (!interrupt)
4364	return AE_ERROR;
4365
4366	list_add(new: &interrupt->list, head: &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: device->handle, METHOD_NAME__PRS,
4435	user_function: sony_pic_read_possible_resource, context: &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(object: device->handle, pathname: "_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(size: 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: device->handle, in_buffer: &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(dev: 0x82);
4558	sony_pic_call2(dev: 0x81, fn: 0xff);
4559	sony_pic_call1(dev: compat ? 0x92 : 0x82);
4560
4561	end:
4562	kfree(objp: 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(port: dev->cur_ioport->io1.minimum);
4581	if (dev->cur_ioport->io2.minimum)
4582	data_mask = inb_p(port: dev->cur_ioport->io2.minimum);
4583	else
4584	data_mask = inb_p(port: 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(event: device_event);
4627	sonypi_compat_report_event(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(kobj: &sony_pf_device->dev.kobj, grp: &spic_attribute_group);
4659	sony_pf_remove();
4660
4661	list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4662	list_del(entry: &io->list);
4663	kfree(objp: io);
4664	}
4665	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4666	list_del(entry: &irq->list);
4667	kfree(objp: 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), q: "sony/hotkey");
4683	sony_pic_detect_device_type(dev: &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(acpi_device: 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->irq.interrupts[0], handler: sony_pic_irq,
4746	flags: 0, name: "sony-laptop", dev: &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, ioport: spic_dev.cur_ioport, irq: 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(kobj: &sony_pf_device->dev.kobj, grp: &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(entry: &io->list);
4808	kfree(objp: io);
4809	}
4810	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4811	list_del(entry: &irq->list);
4812	kfree(objp: 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	ioport: spic_dev.cur_ioport, irq: 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(list: sonypi_dmi_table)) {
4878	result = acpi_bus_register_driver(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(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(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(driver: &sony_nc_driver);
4904	if (spic_drv_registered)
4905	acpi_bus_unregister_driver(driver: &sony_pic_driver);
4906	}
4907
4908	module_init(sony_laptop_init);
4909	module_exit(sony_laptop_exit);
4910