xref: /openbmc/linux/drivers/char/sonypi.c (revision 3b23dc52)
1 /*
2  * Sony Programmable I/O Control Device driver for VAIO
3  *
4  * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
5  *
6  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
7  *
8  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
9  *
10  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
11  *
12  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
13  *
14  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
15  *
16  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
17  *
18  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
19  *
20  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
21  *
22  * This program is free software; you can redistribute it and/or modify
23  * it under the terms of the GNU General Public License as published by
24  * the Free Software Foundation; either version 2 of the License, or
25  * (at your option) any later version.
26  *
27  * This program is distributed in the hope that it will be useful,
28  * but WITHOUT ANY WARRANTY; without even the implied warranty of
29  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
30  * GNU General Public License for more details.
31  *
32  * You should have received a copy of the GNU General Public License
33  * along with this program; if not, write to the Free Software
34  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
35  *
36  */
37 
38 #include <linux/module.h>
39 #include <linux/sched.h>
40 #include <linux/input.h>
41 #include <linux/pci.h>
42 #include <linux/init.h>
43 #include <linux/interrupt.h>
44 #include <linux/miscdevice.h>
45 #include <linux/poll.h>
46 #include <linux/delay.h>
47 #include <linux/wait.h>
48 #include <linux/acpi.h>
49 #include <linux/dmi.h>
50 #include <linux/err.h>
51 #include <linux/kfifo.h>
52 #include <linux/platform_device.h>
53 #include <linux/gfp.h>
54 
55 #include <linux/uaccess.h>
56 #include <asm/io.h>
57 
58 #include <linux/sonypi.h>
59 
60 #define SONYPI_DRIVER_VERSION	 "1.26"
61 
62 MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
63 MODULE_DESCRIPTION("Sony Programmable I/O Control Device driver");
64 MODULE_LICENSE("GPL");
65 MODULE_VERSION(SONYPI_DRIVER_VERSION);
66 
67 static int minor = -1;
68 module_param(minor, int, 0);
69 MODULE_PARM_DESC(minor,
70 		 "minor number of the misc device, default is -1 (automatic)");
71 
72 static int verbose;		/* = 0 */
73 module_param(verbose, int, 0644);
74 MODULE_PARM_DESC(verbose, "be verbose, default is 0 (no)");
75 
76 static int fnkeyinit;		/* = 0 */
77 module_param(fnkeyinit, int, 0444);
78 MODULE_PARM_DESC(fnkeyinit,
79 		 "set this if your Fn keys do not generate any event");
80 
81 static int camera;		/* = 0 */
82 module_param(camera, int, 0444);
83 MODULE_PARM_DESC(camera,
84 		 "set this if you have a MotionEye camera (PictureBook series)");
85 
86 static int compat;		/* = 0 */
87 module_param(compat, int, 0444);
88 MODULE_PARM_DESC(compat,
89 		 "set this if you want to enable backward compatibility mode");
90 
91 static unsigned long mask = 0xffffffff;
92 module_param(mask, ulong, 0644);
93 MODULE_PARM_DESC(mask,
94 		 "set this to the mask of event you want to enable (see doc)");
95 
96 static int useinput = 1;
97 module_param(useinput, int, 0444);
98 MODULE_PARM_DESC(useinput,
99 		 "set this if you would like sonypi to feed events to the input subsystem");
100 
101 static int check_ioport = 1;
102 module_param(check_ioport, int, 0444);
103 MODULE_PARM_DESC(check_ioport,
104 		 "set this to 0 if you think the automatic ioport check for sony-laptop is wrong");
105 
106 #define SONYPI_DEVICE_MODEL_TYPE1	1
107 #define SONYPI_DEVICE_MODEL_TYPE2	2
108 #define SONYPI_DEVICE_MODEL_TYPE3	3
109 
110 /* type1 models use those */
111 #define SONYPI_IRQ_PORT			0x8034
112 #define SONYPI_IRQ_SHIFT		22
113 #define SONYPI_TYPE1_BASE		0x50
114 #define SONYPI_G10A			(SONYPI_TYPE1_BASE+0x14)
115 #define SONYPI_TYPE1_REGION_SIZE	0x08
116 #define SONYPI_TYPE1_EVTYPE_OFFSET	0x04
117 
118 /* type2 series specifics */
119 #define SONYPI_SIRQ			0x9b
120 #define SONYPI_SLOB			0x9c
121 #define SONYPI_SHIB			0x9d
122 #define SONYPI_TYPE2_REGION_SIZE	0x20
123 #define SONYPI_TYPE2_EVTYPE_OFFSET	0x12
124 
125 /* type3 series specifics */
126 #define SONYPI_TYPE3_BASE		0x40
127 #define SONYPI_TYPE3_GID2		(SONYPI_TYPE3_BASE+0x48) /* 16 bits */
128 #define SONYPI_TYPE3_MISC		(SONYPI_TYPE3_BASE+0x6d) /* 8 bits  */
129 #define SONYPI_TYPE3_REGION_SIZE	0x20
130 #define SONYPI_TYPE3_EVTYPE_OFFSET	0x12
131 
132 /* battery / brightness addresses */
133 #define SONYPI_BAT_FLAGS	0x81
134 #define SONYPI_LCD_LIGHT	0x96
135 #define SONYPI_BAT1_PCTRM	0xa0
136 #define SONYPI_BAT1_LEFT	0xa2
137 #define SONYPI_BAT1_MAXRT	0xa4
138 #define SONYPI_BAT2_PCTRM	0xa8
139 #define SONYPI_BAT2_LEFT	0xaa
140 #define SONYPI_BAT2_MAXRT	0xac
141 #define SONYPI_BAT1_MAXTK	0xb0
142 #define SONYPI_BAT1_FULL	0xb2
143 #define SONYPI_BAT2_MAXTK	0xb8
144 #define SONYPI_BAT2_FULL	0xba
145 
146 /* FAN0 information (reverse engineered from ACPI tables) */
147 #define SONYPI_FAN0_STATUS	0x93
148 #define SONYPI_TEMP_STATUS	0xC1
149 
150 /* ioports used for brightness and type2 events */
151 #define SONYPI_DATA_IOPORT	0x62
152 #define SONYPI_CST_IOPORT	0x66
153 
154 /* The set of possible ioports */
155 struct sonypi_ioport_list {
156 	u16	port1;
157 	u16	port2;
158 };
159 
160 static struct sonypi_ioport_list sonypi_type1_ioport_list[] = {
161 	{ 0x10c0, 0x10c4 },	/* looks like the default on C1Vx */
162 	{ 0x1080, 0x1084 },
163 	{ 0x1090, 0x1094 },
164 	{ 0x10a0, 0x10a4 },
165 	{ 0x10b0, 0x10b4 },
166 	{ 0x0, 0x0 }
167 };
168 
169 static struct sonypi_ioport_list sonypi_type2_ioport_list[] = {
170 	{ 0x1080, 0x1084 },
171 	{ 0x10a0, 0x10a4 },
172 	{ 0x10c0, 0x10c4 },
173 	{ 0x10e0, 0x10e4 },
174 	{ 0x0, 0x0 }
175 };
176 
177 /* same as in type 2 models */
178 static struct sonypi_ioport_list *sonypi_type3_ioport_list =
179 	sonypi_type2_ioport_list;
180 
181 /* The set of possible interrupts */
182 struct sonypi_irq_list {
183 	u16	irq;
184 	u16	bits;
185 };
186 
187 static struct sonypi_irq_list sonypi_type1_irq_list[] = {
188 	{ 11, 0x2 },	/* IRQ 11, GO22=0,GO23=1 in AML */
189 	{ 10, 0x1 },	/* IRQ 10, GO22=1,GO23=0 in AML */
190 	{  5, 0x0 },	/* IRQ  5, GO22=0,GO23=0 in AML */
191 	{  0, 0x3 }	/* no IRQ, GO22=1,GO23=1 in AML */
192 };
193 
194 static struct sonypi_irq_list sonypi_type2_irq_list[] = {
195 	{ 11, 0x80 },	/* IRQ 11, 0x80 in SIRQ in AML */
196 	{ 10, 0x40 },	/* IRQ 10, 0x40 in SIRQ in AML */
197 	{  9, 0x20 },	/* IRQ  9, 0x20 in SIRQ in AML */
198 	{  6, 0x10 },	/* IRQ  6, 0x10 in SIRQ in AML */
199 	{  0, 0x00 }	/* no IRQ, 0x00 in SIRQ in AML */
200 };
201 
202 /* same as in type2 models */
203 static struct sonypi_irq_list *sonypi_type3_irq_list = sonypi_type2_irq_list;
204 
205 #define SONYPI_CAMERA_BRIGHTNESS		0
206 #define SONYPI_CAMERA_CONTRAST			1
207 #define SONYPI_CAMERA_HUE			2
208 #define SONYPI_CAMERA_COLOR			3
209 #define SONYPI_CAMERA_SHARPNESS			4
210 
211 #define SONYPI_CAMERA_PICTURE			5
212 #define SONYPI_CAMERA_EXPOSURE_MASK		0xC
213 #define SONYPI_CAMERA_WHITE_BALANCE_MASK	0x3
214 #define SONYPI_CAMERA_PICTURE_MODE_MASK		0x30
215 #define SONYPI_CAMERA_MUTE_MASK			0x40
216 
217 /* the rest don't need a loop until not 0xff */
218 #define SONYPI_CAMERA_AGC			6
219 #define SONYPI_CAMERA_AGC_MASK			0x30
220 #define SONYPI_CAMERA_SHUTTER_MASK 		0x7
221 
222 #define SONYPI_CAMERA_SHUTDOWN_REQUEST		7
223 #define SONYPI_CAMERA_CONTROL			0x10
224 
225 #define SONYPI_CAMERA_STATUS 			7
226 #define SONYPI_CAMERA_STATUS_READY 		0x2
227 #define SONYPI_CAMERA_STATUS_POSITION		0x4
228 
229 #define SONYPI_DIRECTION_BACKWARDS 		0x4
230 
231 #define SONYPI_CAMERA_REVISION 			8
232 #define SONYPI_CAMERA_ROMVERSION 		9
233 
234 /* Event masks */
235 #define SONYPI_JOGGER_MASK			0x00000001
236 #define SONYPI_CAPTURE_MASK			0x00000002
237 #define SONYPI_FNKEY_MASK			0x00000004
238 #define SONYPI_BLUETOOTH_MASK			0x00000008
239 #define SONYPI_PKEY_MASK			0x00000010
240 #define SONYPI_BACK_MASK			0x00000020
241 #define SONYPI_HELP_MASK			0x00000040
242 #define SONYPI_LID_MASK				0x00000080
243 #define SONYPI_ZOOM_MASK			0x00000100
244 #define SONYPI_THUMBPHRASE_MASK			0x00000200
245 #define SONYPI_MEYE_MASK			0x00000400
246 #define SONYPI_MEMORYSTICK_MASK			0x00000800
247 #define SONYPI_BATTERY_MASK			0x00001000
248 #define SONYPI_WIRELESS_MASK			0x00002000
249 
250 struct sonypi_event {
251 	u8	data;
252 	u8	event;
253 };
254 
255 /* The set of possible button release events */
256 static struct sonypi_event sonypi_releaseev[] = {
257 	{ 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
258 	{ 0, 0 }
259 };
260 
261 /* The set of possible jogger events  */
262 static struct sonypi_event sonypi_joggerev[] = {
263 	{ 0x1f, SONYPI_EVENT_JOGDIAL_UP },
264 	{ 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
265 	{ 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
266 	{ 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
267 	{ 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
268 	{ 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
269 	{ 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
270 	{ 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
271 	{ 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
272 	{ 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
273 	{ 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
274 	{ 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
275 	{ 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
276 	{ 0, 0 }
277 };
278 
279 /* The set of possible capture button events */
280 static struct sonypi_event sonypi_captureev[] = {
281 	{ 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
282 	{ 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
283 	{ 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
284 	{ 0, 0 }
285 };
286 
287 /* The set of possible fnkeys events */
288 static struct sonypi_event sonypi_fnkeyev[] = {
289 	{ 0x10, SONYPI_EVENT_FNKEY_ESC },
290 	{ 0x11, SONYPI_EVENT_FNKEY_F1 },
291 	{ 0x12, SONYPI_EVENT_FNKEY_F2 },
292 	{ 0x13, SONYPI_EVENT_FNKEY_F3 },
293 	{ 0x14, SONYPI_EVENT_FNKEY_F4 },
294 	{ 0x15, SONYPI_EVENT_FNKEY_F5 },
295 	{ 0x16, SONYPI_EVENT_FNKEY_F6 },
296 	{ 0x17, SONYPI_EVENT_FNKEY_F7 },
297 	{ 0x18, SONYPI_EVENT_FNKEY_F8 },
298 	{ 0x19, SONYPI_EVENT_FNKEY_F9 },
299 	{ 0x1a, SONYPI_EVENT_FNKEY_F10 },
300 	{ 0x1b, SONYPI_EVENT_FNKEY_F11 },
301 	{ 0x1c, SONYPI_EVENT_FNKEY_F12 },
302 	{ 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
303 	{ 0x21, SONYPI_EVENT_FNKEY_1 },
304 	{ 0x22, SONYPI_EVENT_FNKEY_2 },
305 	{ 0x31, SONYPI_EVENT_FNKEY_D },
306 	{ 0x32, SONYPI_EVENT_FNKEY_E },
307 	{ 0x33, SONYPI_EVENT_FNKEY_F },
308 	{ 0x34, SONYPI_EVENT_FNKEY_S },
309 	{ 0x35, SONYPI_EVENT_FNKEY_B },
310 	{ 0x36, SONYPI_EVENT_FNKEY_ONLY },
311 	{ 0, 0 }
312 };
313 
314 /* The set of possible program key events */
315 static struct sonypi_event sonypi_pkeyev[] = {
316 	{ 0x01, SONYPI_EVENT_PKEY_P1 },
317 	{ 0x02, SONYPI_EVENT_PKEY_P2 },
318 	{ 0x04, SONYPI_EVENT_PKEY_P3 },
319 	{ 0x5c, SONYPI_EVENT_PKEY_P1 },
320 	{ 0, 0 }
321 };
322 
323 /* The set of possible bluetooth events */
324 static struct sonypi_event sonypi_blueev[] = {
325 	{ 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
326 	{ 0x59, SONYPI_EVENT_BLUETOOTH_ON },
327 	{ 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
328 	{ 0, 0 }
329 };
330 
331 /* The set of possible wireless events */
332 static struct sonypi_event sonypi_wlessev[] = {
333 	{ 0x59, SONYPI_EVENT_WIRELESS_ON },
334 	{ 0x5a, SONYPI_EVENT_WIRELESS_OFF },
335 	{ 0, 0 }
336 };
337 
338 /* The set of possible back button events */
339 static struct sonypi_event sonypi_backev[] = {
340 	{ 0x20, SONYPI_EVENT_BACK_PRESSED },
341 	{ 0, 0 }
342 };
343 
344 /* The set of possible help button events */
345 static struct sonypi_event sonypi_helpev[] = {
346 	{ 0x3b, SONYPI_EVENT_HELP_PRESSED },
347 	{ 0, 0 }
348 };
349 
350 
351 /* The set of possible lid events */
352 static struct sonypi_event sonypi_lidev[] = {
353 	{ 0x51, SONYPI_EVENT_LID_CLOSED },
354 	{ 0x50, SONYPI_EVENT_LID_OPENED },
355 	{ 0, 0 }
356 };
357 
358 /* The set of possible zoom events */
359 static struct sonypi_event sonypi_zoomev[] = {
360 	{ 0x39, SONYPI_EVENT_ZOOM_PRESSED },
361 	{ 0, 0 }
362 };
363 
364 /* The set of possible thumbphrase events */
365 static struct sonypi_event sonypi_thumbphraseev[] = {
366 	{ 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
367 	{ 0, 0 }
368 };
369 
370 /* The set of possible motioneye camera events */
371 static struct sonypi_event sonypi_meyeev[] = {
372 	{ 0x00, SONYPI_EVENT_MEYE_FACE },
373 	{ 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
374 	{ 0, 0 }
375 };
376 
377 /* The set of possible memorystick events */
378 static struct sonypi_event sonypi_memorystickev[] = {
379 	{ 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
380 	{ 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
381 	{ 0, 0 }
382 };
383 
384 /* The set of possible battery events */
385 static struct sonypi_event sonypi_batteryev[] = {
386 	{ 0x20, SONYPI_EVENT_BATTERY_INSERT },
387 	{ 0x30, SONYPI_EVENT_BATTERY_REMOVE },
388 	{ 0, 0 }
389 };
390 
391 static struct sonypi_eventtypes {
392 	int			model;
393 	u8			data;
394 	unsigned long		mask;
395 	struct sonypi_event *	events;
396 } sonypi_eventtypes[] = {
397 	{ SONYPI_DEVICE_MODEL_TYPE1, 0, 0xffffffff, sonypi_releaseev },
398 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
399 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
400 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
401 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
402 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
403 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
404 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
405 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
406 	{ SONYPI_DEVICE_MODEL_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
407 
408 	{ SONYPI_DEVICE_MODEL_TYPE2, 0, 0xffffffff, sonypi_releaseev },
409 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
410 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
411 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
412 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
413 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
414 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
415 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
416 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
417 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
418 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
419 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
420 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
421 	{ SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
422 
423 	{ SONYPI_DEVICE_MODEL_TYPE3, 0, 0xffffffff, sonypi_releaseev },
424 	{ SONYPI_DEVICE_MODEL_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
425 	{ SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
426 	{ SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
427 	{ SONYPI_DEVICE_MODEL_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
428 	{ SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
429 	{ 0 }
430 };
431 
432 #define SONYPI_BUF_SIZE	128
433 
434 /* Correspondance table between sonypi events and input layer events */
435 static struct {
436 	int sonypiev;
437 	int inputev;
438 } sonypi_inputkeys[] = {
439 	{ SONYPI_EVENT_CAPTURE_PRESSED,	 	KEY_CAMERA },
440 	{ SONYPI_EVENT_FNKEY_ONLY, 		KEY_FN },
441 	{ SONYPI_EVENT_FNKEY_ESC, 		KEY_FN_ESC },
442 	{ SONYPI_EVENT_FNKEY_F1, 		KEY_FN_F1 },
443 	{ SONYPI_EVENT_FNKEY_F2, 		KEY_FN_F2 },
444 	{ SONYPI_EVENT_FNKEY_F3, 		KEY_FN_F3 },
445 	{ SONYPI_EVENT_FNKEY_F4, 		KEY_FN_F4 },
446 	{ SONYPI_EVENT_FNKEY_F5, 		KEY_FN_F5 },
447 	{ SONYPI_EVENT_FNKEY_F6, 		KEY_FN_F6 },
448 	{ SONYPI_EVENT_FNKEY_F7, 		KEY_FN_F7 },
449 	{ SONYPI_EVENT_FNKEY_F8, 		KEY_FN_F8 },
450 	{ SONYPI_EVENT_FNKEY_F9,		KEY_FN_F9 },
451 	{ SONYPI_EVENT_FNKEY_F10,		KEY_FN_F10 },
452 	{ SONYPI_EVENT_FNKEY_F11, 		KEY_FN_F11 },
453 	{ SONYPI_EVENT_FNKEY_F12,		KEY_FN_F12 },
454 	{ SONYPI_EVENT_FNKEY_1, 		KEY_FN_1 },
455 	{ SONYPI_EVENT_FNKEY_2, 		KEY_FN_2 },
456 	{ SONYPI_EVENT_FNKEY_D,			KEY_FN_D },
457 	{ SONYPI_EVENT_FNKEY_E,			KEY_FN_E },
458 	{ SONYPI_EVENT_FNKEY_F,			KEY_FN_F },
459 	{ SONYPI_EVENT_FNKEY_S,			KEY_FN_S },
460 	{ SONYPI_EVENT_FNKEY_B,			KEY_FN_B },
461 	{ SONYPI_EVENT_BLUETOOTH_PRESSED, 	KEY_BLUE },
462 	{ SONYPI_EVENT_BLUETOOTH_ON, 		KEY_BLUE },
463 	{ SONYPI_EVENT_PKEY_P1, 		KEY_PROG1 },
464 	{ SONYPI_EVENT_PKEY_P2, 		KEY_PROG2 },
465 	{ SONYPI_EVENT_PKEY_P3, 		KEY_PROG3 },
466 	{ SONYPI_EVENT_BACK_PRESSED, 		KEY_BACK },
467 	{ SONYPI_EVENT_HELP_PRESSED, 		KEY_HELP },
468 	{ SONYPI_EVENT_ZOOM_PRESSED, 		KEY_ZOOM },
469 	{ SONYPI_EVENT_THUMBPHRASE_PRESSED, 	BTN_THUMB },
470 	{ 0, 0 },
471 };
472 
473 struct sonypi_keypress {
474 	struct input_dev *dev;
475 	int key;
476 };
477 
478 static struct sonypi_device {
479 	struct pci_dev *dev;
480 	u16 irq;
481 	u16 bits;
482 	u16 ioport1;
483 	u16 ioport2;
484 	u16 region_size;
485 	u16 evtype_offset;
486 	int camera_power;
487 	int bluetooth_power;
488 	struct mutex lock;
489 	struct kfifo fifo;
490 	spinlock_t fifo_lock;
491 	wait_queue_head_t fifo_proc_list;
492 	struct fasync_struct *fifo_async;
493 	int open_count;
494 	int model;
495 	struct input_dev *input_jog_dev;
496 	struct input_dev *input_key_dev;
497 	struct work_struct input_work;
498 	struct kfifo input_fifo;
499 	spinlock_t input_fifo_lock;
500 } sonypi_device;
501 
502 #define ITERATIONS_LONG		10000
503 #define ITERATIONS_SHORT	10
504 
505 #define wait_on_command(quiet, command, iterations) { \
506 	unsigned int n = iterations; \
507 	while (--n && (command)) \
508 		udelay(1); \
509 	if (!n && (verbose || !quiet)) \
510 		printk(KERN_WARNING "sonypi command failed at %s : %s (line %d)\n", __FILE__, __func__, __LINE__); \
511 }
512 
513 #ifdef CONFIG_ACPI
514 #define SONYPI_ACPI_ACTIVE (!acpi_disabled)
515 #else
516 #define SONYPI_ACPI_ACTIVE 0
517 #endif				/* CONFIG_ACPI */
518 
519 #ifdef CONFIG_ACPI
520 static struct acpi_device *sonypi_acpi_device;
521 static int acpi_driver_registered;
522 #endif
523 
524 static int sonypi_ec_write(u8 addr, u8 value)
525 {
526 #ifdef CONFIG_ACPI
527 	if (SONYPI_ACPI_ACTIVE)
528 		return ec_write(addr, value);
529 #endif
530 	wait_on_command(1, inb_p(SONYPI_CST_IOPORT) & 3, ITERATIONS_LONG);
531 	outb_p(0x81, SONYPI_CST_IOPORT);
532 	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
533 	outb_p(addr, SONYPI_DATA_IOPORT);
534 	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
535 	outb_p(value, SONYPI_DATA_IOPORT);
536 	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
537 	return 0;
538 }
539 
540 static int sonypi_ec_read(u8 addr, u8 *value)
541 {
542 #ifdef CONFIG_ACPI
543 	if (SONYPI_ACPI_ACTIVE)
544 		return ec_read(addr, value);
545 #endif
546 	wait_on_command(1, inb_p(SONYPI_CST_IOPORT) & 3, ITERATIONS_LONG);
547 	outb_p(0x80, SONYPI_CST_IOPORT);
548 	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
549 	outb_p(addr, SONYPI_DATA_IOPORT);
550 	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
551 	*value = inb_p(SONYPI_DATA_IOPORT);
552 	return 0;
553 }
554 
555 static int ec_read16(u8 addr, u16 *value)
556 {
557 	u8 val_lb, val_hb;
558 	if (sonypi_ec_read(addr, &val_lb))
559 		return -1;
560 	if (sonypi_ec_read(addr + 1, &val_hb))
561 		return -1;
562 	*value = val_lb | (val_hb << 8);
563 	return 0;
564 }
565 
566 /* Initializes the device - this comes from the AML code in the ACPI bios */
567 static void sonypi_type1_srs(void)
568 {
569 	u32 v;
570 
571 	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
572 	v = (v & 0xFFFF0000) | ((u32) sonypi_device.ioport1);
573 	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
574 
575 	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
576 	v = (v & 0xFFF0FFFF) |
577 	    (((u32) sonypi_device.ioport1 ^ sonypi_device.ioport2) << 16);
578 	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
579 
580 	v = inl(SONYPI_IRQ_PORT);
581 	v &= ~(((u32) 0x3) << SONYPI_IRQ_SHIFT);
582 	v |= (((u32) sonypi_device.bits) << SONYPI_IRQ_SHIFT);
583 	outl(v, SONYPI_IRQ_PORT);
584 
585 	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
586 	v = (v & 0xFF1FFFFF) | 0x00C00000;
587 	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
588 }
589 
590 static void sonypi_type2_srs(void)
591 {
592 	if (sonypi_ec_write(SONYPI_SHIB, (sonypi_device.ioport1 & 0xFF00) >> 8))
593 		printk(KERN_WARNING "ec_write failed\n");
594 	if (sonypi_ec_write(SONYPI_SLOB, sonypi_device.ioport1 & 0x00FF))
595 		printk(KERN_WARNING "ec_write failed\n");
596 	if (sonypi_ec_write(SONYPI_SIRQ, sonypi_device.bits))
597 		printk(KERN_WARNING "ec_write failed\n");
598 	udelay(10);
599 }
600 
601 static void sonypi_type3_srs(void)
602 {
603 	u16 v16;
604 	u8  v8;
605 
606 	/* This model type uses the same initialization of
607 	 * the embedded controller as the type2 models. */
608 	sonypi_type2_srs();
609 
610 	/* Initialization of PCI config space of the LPC interface bridge. */
611 	v16 = (sonypi_device.ioport1 & 0xFFF0) | 0x01;
612 	pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, v16);
613 	pci_read_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, &v8);
614 	v8 = (v8 & 0xCF) | 0x10;
615 	pci_write_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, v8);
616 }
617 
618 /* Disables the device - this comes from the AML code in the ACPI bios */
619 static void sonypi_type1_dis(void)
620 {
621 	u32 v;
622 
623 	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
624 	v = v & 0xFF3FFFFF;
625 	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
626 
627 	v = inl(SONYPI_IRQ_PORT);
628 	v |= (0x3 << SONYPI_IRQ_SHIFT);
629 	outl(v, SONYPI_IRQ_PORT);
630 }
631 
632 static void sonypi_type2_dis(void)
633 {
634 	if (sonypi_ec_write(SONYPI_SHIB, 0))
635 		printk(KERN_WARNING "ec_write failed\n");
636 	if (sonypi_ec_write(SONYPI_SLOB, 0))
637 		printk(KERN_WARNING "ec_write failed\n");
638 	if (sonypi_ec_write(SONYPI_SIRQ, 0))
639 		printk(KERN_WARNING "ec_write failed\n");
640 }
641 
642 static void sonypi_type3_dis(void)
643 {
644 	sonypi_type2_dis();
645 	udelay(10);
646 	pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, 0);
647 }
648 
649 static u8 sonypi_call1(u8 dev)
650 {
651 	u8 v1, v2;
652 
653 	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
654 	outb(dev, sonypi_device.ioport2);
655 	v1 = inb_p(sonypi_device.ioport2);
656 	v2 = inb_p(sonypi_device.ioport1);
657 	return v2;
658 }
659 
660 static u8 sonypi_call2(u8 dev, u8 fn)
661 {
662 	u8 v1;
663 
664 	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
665 	outb(dev, sonypi_device.ioport2);
666 	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
667 	outb(fn, sonypi_device.ioport1);
668 	v1 = inb_p(sonypi_device.ioport1);
669 	return v1;
670 }
671 
672 static u8 sonypi_call3(u8 dev, u8 fn, u8 v)
673 {
674 	u8 v1;
675 
676 	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
677 	outb(dev, sonypi_device.ioport2);
678 	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
679 	outb(fn, sonypi_device.ioport1);
680 	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
681 	outb(v, sonypi_device.ioport1);
682 	v1 = inb_p(sonypi_device.ioport1);
683 	return v1;
684 }
685 
686 #if 0
687 /* Get brightness, hue etc. Unreliable... */
688 static u8 sonypi_read(u8 fn)
689 {
690 	u8 v1, v2;
691 	int n = 100;
692 
693 	while (n--) {
694 		v1 = sonypi_call2(0x8f, fn);
695 		v2 = sonypi_call2(0x8f, fn);
696 		if (v1 == v2 && v1 != 0xff)
697 			return v1;
698 	}
699 	return 0xff;
700 }
701 #endif
702 
703 /* Set brightness, hue etc */
704 static void sonypi_set(u8 fn, u8 v)
705 {
706 	wait_on_command(0, sonypi_call3(0x90, fn, v), ITERATIONS_SHORT);
707 }
708 
709 /* Tests if the camera is ready */
710 static int sonypi_camera_ready(void)
711 {
712 	u8 v;
713 
714 	v = sonypi_call2(0x8f, SONYPI_CAMERA_STATUS);
715 	return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
716 }
717 
718 /* Turns the camera off */
719 static void sonypi_camera_off(void)
720 {
721 	sonypi_set(SONYPI_CAMERA_PICTURE, SONYPI_CAMERA_MUTE_MASK);
722 
723 	if (!sonypi_device.camera_power)
724 		return;
725 
726 	sonypi_call2(0x91, 0);
727 	sonypi_device.camera_power = 0;
728 }
729 
730 /* Turns the camera on */
731 static void sonypi_camera_on(void)
732 {
733 	int i, j;
734 
735 	if (sonypi_device.camera_power)
736 		return;
737 
738 	for (j = 5; j > 0; j--) {
739 
740 		while (sonypi_call2(0x91, 0x1))
741 			msleep(10);
742 		sonypi_call1(0x93);
743 
744 		for (i = 400; i > 0; i--) {
745 			if (sonypi_camera_ready())
746 				break;
747 			msleep(10);
748 		}
749 		if (i)
750 			break;
751 	}
752 
753 	if (j == 0) {
754 		printk(KERN_WARNING "sonypi: failed to power on camera\n");
755 		return;
756 	}
757 
758 	sonypi_set(0x10, 0x5a);
759 	sonypi_device.camera_power = 1;
760 }
761 
762 /* sets the bluetooth subsystem power state */
763 static void sonypi_setbluetoothpower(u8 state)
764 {
765 	state = !!state;
766 
767 	if (sonypi_device.bluetooth_power == state)
768 		return;
769 
770 	sonypi_call2(0x96, state);
771 	sonypi_call1(0x82);
772 	sonypi_device.bluetooth_power = state;
773 }
774 
775 static void input_keyrelease(struct work_struct *work)
776 {
777 	struct sonypi_keypress kp;
778 
779 	while (kfifo_out_locked(&sonypi_device.input_fifo, (unsigned char *)&kp,
780 			 sizeof(kp), &sonypi_device.input_fifo_lock)
781 			== sizeof(kp)) {
782 		msleep(10);
783 		input_report_key(kp.dev, kp.key, 0);
784 		input_sync(kp.dev);
785 	}
786 }
787 
788 static void sonypi_report_input_event(u8 event)
789 {
790 	struct input_dev *jog_dev = sonypi_device.input_jog_dev;
791 	struct input_dev *key_dev = sonypi_device.input_key_dev;
792 	struct sonypi_keypress kp = { NULL };
793 	int i;
794 
795 	switch (event) {
796 	case SONYPI_EVENT_JOGDIAL_UP:
797 	case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
798 		input_report_rel(jog_dev, REL_WHEEL, 1);
799 		input_sync(jog_dev);
800 		break;
801 
802 	case SONYPI_EVENT_JOGDIAL_DOWN:
803 	case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
804 		input_report_rel(jog_dev, REL_WHEEL, -1);
805 		input_sync(jog_dev);
806 		break;
807 
808 	case SONYPI_EVENT_JOGDIAL_PRESSED:
809 		kp.key = BTN_MIDDLE;
810 		kp.dev = jog_dev;
811 		break;
812 
813 	case SONYPI_EVENT_FNKEY_RELEASED:
814 		/* Nothing, not all VAIOs generate this event */
815 		break;
816 
817 	default:
818 		for (i = 0; sonypi_inputkeys[i].sonypiev; i++)
819 			if (event == sonypi_inputkeys[i].sonypiev) {
820 				kp.dev = key_dev;
821 				kp.key = sonypi_inputkeys[i].inputev;
822 				break;
823 			}
824 		break;
825 	}
826 
827 	if (kp.dev) {
828 		input_report_key(kp.dev, kp.key, 1);
829 		input_sync(kp.dev);
830 		kfifo_in_locked(&sonypi_device.input_fifo,
831 			(unsigned char *)&kp, sizeof(kp),
832 			&sonypi_device.input_fifo_lock);
833 		schedule_work(&sonypi_device.input_work);
834 	}
835 }
836 
837 /* Interrupt handler: some event is available */
838 static irqreturn_t sonypi_irq(int irq, void *dev_id)
839 {
840 	u8 v1, v2, event = 0;
841 	int i, j;
842 
843 	v1 = inb_p(sonypi_device.ioport1);
844 	v2 = inb_p(sonypi_device.ioport1 + sonypi_device.evtype_offset);
845 
846 	for (i = 0; sonypi_eventtypes[i].model; i++) {
847 		if (sonypi_device.model != sonypi_eventtypes[i].model)
848 			continue;
849 		if ((v2 & sonypi_eventtypes[i].data) !=
850 		    sonypi_eventtypes[i].data)
851 			continue;
852 		if (!(mask & sonypi_eventtypes[i].mask))
853 			continue;
854 		for (j = 0; sonypi_eventtypes[i].events[j].event; j++) {
855 			if (v1 == sonypi_eventtypes[i].events[j].data) {
856 				event = sonypi_eventtypes[i].events[j].event;
857 				goto found;
858 			}
859 		}
860 	}
861 
862 	if (verbose)
863 		printk(KERN_WARNING
864 		       "sonypi: unknown event port1=0x%02x,port2=0x%02x\n",
865 		       v1, v2);
866 	/* We need to return IRQ_HANDLED here because there *are*
867 	 * events belonging to the sonypi device we don't know about,
868 	 * but we still don't want those to pollute the logs... */
869 	return IRQ_HANDLED;
870 
871 found:
872 	if (verbose > 1)
873 		printk(KERN_INFO
874 		       "sonypi: event port1=0x%02x,port2=0x%02x\n", v1, v2);
875 
876 	if (useinput)
877 		sonypi_report_input_event(event);
878 
879 	kfifo_in_locked(&sonypi_device.fifo, (unsigned char *)&event,
880 			sizeof(event), &sonypi_device.fifo_lock);
881 	kill_fasync(&sonypi_device.fifo_async, SIGIO, POLL_IN);
882 	wake_up_interruptible(&sonypi_device.fifo_proc_list);
883 
884 	return IRQ_HANDLED;
885 }
886 
887 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
888 {
889 	return fasync_helper(fd, filp, on, &sonypi_device.fifo_async);
890 }
891 
892 static int sonypi_misc_release(struct inode *inode, struct file *file)
893 {
894 	mutex_lock(&sonypi_device.lock);
895 	sonypi_device.open_count--;
896 	mutex_unlock(&sonypi_device.lock);
897 	return 0;
898 }
899 
900 static int sonypi_misc_open(struct inode *inode, struct file *file)
901 {
902 	mutex_lock(&sonypi_device.lock);
903 	/* Flush input queue on first open */
904 	if (!sonypi_device.open_count)
905 		kfifo_reset(&sonypi_device.fifo);
906 	sonypi_device.open_count++;
907 	mutex_unlock(&sonypi_device.lock);
908 
909 	return 0;
910 }
911 
912 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
913 				size_t count, loff_t *pos)
914 {
915 	ssize_t ret;
916 	unsigned char c;
917 
918 	if ((kfifo_len(&sonypi_device.fifo) == 0) &&
919 	    (file->f_flags & O_NONBLOCK))
920 		return -EAGAIN;
921 
922 	ret = wait_event_interruptible(sonypi_device.fifo_proc_list,
923 				       kfifo_len(&sonypi_device.fifo) != 0);
924 	if (ret)
925 		return ret;
926 
927 	while (ret < count &&
928 	       (kfifo_out_locked(&sonypi_device.fifo, &c, sizeof(c),
929 				 &sonypi_device.fifo_lock) == sizeof(c))) {
930 		if (put_user(c, buf++))
931 			return -EFAULT;
932 		ret++;
933 	}
934 
935 	if (ret > 0) {
936 		struct inode *inode = file_inode(file);
937 		inode->i_atime = current_time(inode);
938 	}
939 
940 	return ret;
941 }
942 
943 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
944 {
945 	poll_wait(file, &sonypi_device.fifo_proc_list, wait);
946 	if (kfifo_len(&sonypi_device.fifo))
947 		return EPOLLIN | EPOLLRDNORM;
948 	return 0;
949 }
950 
951 static long sonypi_misc_ioctl(struct file *fp,
952 			     unsigned int cmd, unsigned long arg)
953 {
954 	long ret = 0;
955 	void __user *argp = (void __user *)arg;
956 	u8 val8;
957 	u16 val16;
958 
959 	mutex_lock(&sonypi_device.lock);
960 	switch (cmd) {
961 	case SONYPI_IOCGBRT:
962 		if (sonypi_ec_read(SONYPI_LCD_LIGHT, &val8)) {
963 			ret = -EIO;
964 			break;
965 		}
966 		if (copy_to_user(argp, &val8, sizeof(val8)))
967 			ret = -EFAULT;
968 		break;
969 	case SONYPI_IOCSBRT:
970 		if (copy_from_user(&val8, argp, sizeof(val8))) {
971 			ret = -EFAULT;
972 			break;
973 		}
974 		if (sonypi_ec_write(SONYPI_LCD_LIGHT, val8))
975 			ret = -EIO;
976 		break;
977 	case SONYPI_IOCGBAT1CAP:
978 		if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
979 			ret = -EIO;
980 			break;
981 		}
982 		if (copy_to_user(argp, &val16, sizeof(val16)))
983 			ret = -EFAULT;
984 		break;
985 	case SONYPI_IOCGBAT1REM:
986 		if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
987 			ret = -EIO;
988 			break;
989 		}
990 		if (copy_to_user(argp, &val16, sizeof(val16)))
991 			ret = -EFAULT;
992 		break;
993 	case SONYPI_IOCGBAT2CAP:
994 		if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
995 			ret = -EIO;
996 			break;
997 		}
998 		if (copy_to_user(argp, &val16, sizeof(val16)))
999 			ret = -EFAULT;
1000 		break;
1001 	case SONYPI_IOCGBAT2REM:
1002 		if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1003 			ret = -EIO;
1004 			break;
1005 		}
1006 		if (copy_to_user(argp, &val16, sizeof(val16)))
1007 			ret = -EFAULT;
1008 		break;
1009 	case SONYPI_IOCGBATFLAGS:
1010 		if (sonypi_ec_read(SONYPI_BAT_FLAGS, &val8)) {
1011 			ret = -EIO;
1012 			break;
1013 		}
1014 		val8 &= 0x07;
1015 		if (copy_to_user(argp, &val8, sizeof(val8)))
1016 			ret = -EFAULT;
1017 		break;
1018 	case SONYPI_IOCGBLUE:
1019 		val8 = sonypi_device.bluetooth_power;
1020 		if (copy_to_user(argp, &val8, sizeof(val8)))
1021 			ret = -EFAULT;
1022 		break;
1023 	case SONYPI_IOCSBLUE:
1024 		if (copy_from_user(&val8, argp, sizeof(val8))) {
1025 			ret = -EFAULT;
1026 			break;
1027 		}
1028 		sonypi_setbluetoothpower(val8);
1029 		break;
1030 	/* FAN Controls */
1031 	case SONYPI_IOCGFAN:
1032 		if (sonypi_ec_read(SONYPI_FAN0_STATUS, &val8)) {
1033 			ret = -EIO;
1034 			break;
1035 		}
1036 		if (copy_to_user(argp, &val8, sizeof(val8)))
1037 			ret = -EFAULT;
1038 		break;
1039 	case SONYPI_IOCSFAN:
1040 		if (copy_from_user(&val8, argp, sizeof(val8))) {
1041 			ret = -EFAULT;
1042 			break;
1043 		}
1044 		if (sonypi_ec_write(SONYPI_FAN0_STATUS, val8))
1045 			ret = -EIO;
1046 		break;
1047 	/* GET Temperature (useful under APM) */
1048 	case SONYPI_IOCGTEMP:
1049 		if (sonypi_ec_read(SONYPI_TEMP_STATUS, &val8)) {
1050 			ret = -EIO;
1051 			break;
1052 		}
1053 		if (copy_to_user(argp, &val8, sizeof(val8)))
1054 			ret = -EFAULT;
1055 		break;
1056 	default:
1057 		ret = -EINVAL;
1058 	}
1059 	mutex_unlock(&sonypi_device.lock);
1060 	return ret;
1061 }
1062 
1063 static const struct file_operations sonypi_misc_fops = {
1064 	.owner		= THIS_MODULE,
1065 	.read		= sonypi_misc_read,
1066 	.poll		= sonypi_misc_poll,
1067 	.open		= sonypi_misc_open,
1068 	.release	= sonypi_misc_release,
1069 	.fasync		= sonypi_misc_fasync,
1070 	.unlocked_ioctl	= sonypi_misc_ioctl,
1071 	.llseek		= no_llseek,
1072 };
1073 
1074 static struct miscdevice sonypi_misc_device = {
1075 	.minor		= MISC_DYNAMIC_MINOR,
1076 	.name		= "sonypi",
1077 	.fops		= &sonypi_misc_fops,
1078 };
1079 
1080 static void sonypi_enable(unsigned int camera_on)
1081 {
1082 	switch (sonypi_device.model) {
1083 	case SONYPI_DEVICE_MODEL_TYPE1:
1084 		sonypi_type1_srs();
1085 		break;
1086 	case SONYPI_DEVICE_MODEL_TYPE2:
1087 		sonypi_type2_srs();
1088 		break;
1089 	case SONYPI_DEVICE_MODEL_TYPE3:
1090 		sonypi_type3_srs();
1091 		break;
1092 	}
1093 
1094 	sonypi_call1(0x82);
1095 	sonypi_call2(0x81, 0xff);
1096 	sonypi_call1(compat ? 0x92 : 0x82);
1097 
1098 	/* Enable ACPI mode to get Fn key events */
1099 	if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
1100 		outb(0xf0, 0xb2);
1101 
1102 	if (camera && camera_on)
1103 		sonypi_camera_on();
1104 }
1105 
1106 static int sonypi_disable(void)
1107 {
1108 	sonypi_call2(0x81, 0);	/* make sure we don't get any more events */
1109 	if (camera)
1110 		sonypi_camera_off();
1111 
1112 	/* disable ACPI mode */
1113 	if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
1114 		outb(0xf1, 0xb2);
1115 
1116 	switch (sonypi_device.model) {
1117 	case SONYPI_DEVICE_MODEL_TYPE1:
1118 		sonypi_type1_dis();
1119 		break;
1120 	case SONYPI_DEVICE_MODEL_TYPE2:
1121 		sonypi_type2_dis();
1122 		break;
1123 	case SONYPI_DEVICE_MODEL_TYPE3:
1124 		sonypi_type3_dis();
1125 		break;
1126 	}
1127 
1128 	return 0;
1129 }
1130 
1131 #ifdef CONFIG_ACPI
1132 static int sonypi_acpi_add(struct acpi_device *device)
1133 {
1134 	sonypi_acpi_device = device;
1135 	strcpy(acpi_device_name(device), "Sony laptop hotkeys");
1136 	strcpy(acpi_device_class(device), "sony/hotkey");
1137 	return 0;
1138 }
1139 
1140 static int sonypi_acpi_remove(struct acpi_device *device)
1141 {
1142 	sonypi_acpi_device = NULL;
1143 	return 0;
1144 }
1145 
1146 static const struct acpi_device_id sonypi_device_ids[] = {
1147 	{"SNY6001", 0},
1148 	{"", 0},
1149 };
1150 
1151 static struct acpi_driver sonypi_acpi_driver = {
1152 	.name           = "sonypi",
1153 	.class          = "hkey",
1154 	.ids            = sonypi_device_ids,
1155 	.ops            = {
1156 		           .add = sonypi_acpi_add,
1157 			   .remove = sonypi_acpi_remove,
1158 	},
1159 };
1160 #endif
1161 
1162 static int sonypi_create_input_devices(struct platform_device *pdev)
1163 {
1164 	struct input_dev *jog_dev;
1165 	struct input_dev *key_dev;
1166 	int i;
1167 	int error;
1168 
1169 	sonypi_device.input_jog_dev = jog_dev = input_allocate_device();
1170 	if (!jog_dev)
1171 		return -ENOMEM;
1172 
1173 	jog_dev->name = "Sony Vaio Jogdial";
1174 	jog_dev->id.bustype = BUS_ISA;
1175 	jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
1176 	jog_dev->dev.parent = &pdev->dev;
1177 
1178 	jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
1179 	jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
1180 	jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
1181 
1182 	sonypi_device.input_key_dev = key_dev = input_allocate_device();
1183 	if (!key_dev) {
1184 		error = -ENOMEM;
1185 		goto err_free_jogdev;
1186 	}
1187 
1188 	key_dev->name = "Sony Vaio Keys";
1189 	key_dev->id.bustype = BUS_ISA;
1190 	key_dev->id.vendor = PCI_VENDOR_ID_SONY;
1191 	key_dev->dev.parent = &pdev->dev;
1192 
1193 	/* Initialize the Input Drivers: special keys */
1194 	key_dev->evbit[0] = BIT_MASK(EV_KEY);
1195 	for (i = 0; sonypi_inputkeys[i].sonypiev; i++)
1196 		if (sonypi_inputkeys[i].inputev)
1197 			set_bit(sonypi_inputkeys[i].inputev, key_dev->keybit);
1198 
1199 	error = input_register_device(jog_dev);
1200 	if (error)
1201 		goto err_free_keydev;
1202 
1203 	error = input_register_device(key_dev);
1204 	if (error)
1205 		goto err_unregister_jogdev;
1206 
1207 	return 0;
1208 
1209  err_unregister_jogdev:
1210 	input_unregister_device(jog_dev);
1211 	/* Set to NULL so we don't free it again below */
1212 	jog_dev = NULL;
1213  err_free_keydev:
1214 	input_free_device(key_dev);
1215 	sonypi_device.input_key_dev = NULL;
1216  err_free_jogdev:
1217 	input_free_device(jog_dev);
1218 	sonypi_device.input_jog_dev = NULL;
1219 
1220 	return error;
1221 }
1222 
1223 static int sonypi_setup_ioports(struct sonypi_device *dev,
1224 				const struct sonypi_ioport_list *ioport_list)
1225 {
1226 	/* try to detect if sony-laptop is being used and thus
1227 	 * has already requested one of the known ioports.
1228 	 * As in the deprecated check_region this is racy has we have
1229 	 * multiple ioports available and one of them can be requested
1230 	 * between this check and the subsequent request. Anyway, as an
1231 	 * attempt to be some more user-friendly as we currently are,
1232 	 * this is enough.
1233 	 */
1234 	const struct sonypi_ioport_list *check = ioport_list;
1235 	while (check_ioport && check->port1) {
1236 		if (!request_region(check->port1,
1237 				   sonypi_device.region_size,
1238 				   "Sony Programmable I/O Device Check")) {
1239 			printk(KERN_ERR "sonypi: ioport 0x%.4x busy, using sony-laptop? "
1240 					"if not use check_ioport=0\n",
1241 					check->port1);
1242 			return -EBUSY;
1243 		}
1244 		release_region(check->port1, sonypi_device.region_size);
1245 		check++;
1246 	}
1247 
1248 	while (ioport_list->port1) {
1249 
1250 		if (request_region(ioport_list->port1,
1251 				   sonypi_device.region_size,
1252 				   "Sony Programmable I/O Device")) {
1253 			dev->ioport1 = ioport_list->port1;
1254 			dev->ioport2 = ioport_list->port2;
1255 			return 0;
1256 		}
1257 		ioport_list++;
1258 	}
1259 
1260 	return -EBUSY;
1261 }
1262 
1263 static int sonypi_setup_irq(struct sonypi_device *dev,
1264 				      const struct sonypi_irq_list *irq_list)
1265 {
1266 	while (irq_list->irq) {
1267 
1268 		if (!request_irq(irq_list->irq, sonypi_irq,
1269 				 IRQF_SHARED, "sonypi", sonypi_irq)) {
1270 			dev->irq = irq_list->irq;
1271 			dev->bits = irq_list->bits;
1272 			return 0;
1273 		}
1274 		irq_list++;
1275 	}
1276 
1277 	return -EBUSY;
1278 }
1279 
1280 static void sonypi_display_info(void)
1281 {
1282 	printk(KERN_INFO "sonypi: detected type%d model, "
1283 	       "verbose = %d, fnkeyinit = %s, camera = %s, "
1284 	       "compat = %s, mask = 0x%08lx, useinput = %s, acpi = %s\n",
1285 	       sonypi_device.model,
1286 	       verbose,
1287 	       fnkeyinit ? "on" : "off",
1288 	       camera ? "on" : "off",
1289 	       compat ? "on" : "off",
1290 	       mask,
1291 	       useinput ? "on" : "off",
1292 	       SONYPI_ACPI_ACTIVE ? "on" : "off");
1293 	printk(KERN_INFO "sonypi: enabled at irq=%d, port1=0x%x, port2=0x%x\n",
1294 	       sonypi_device.irq,
1295 	       sonypi_device.ioport1, sonypi_device.ioport2);
1296 
1297 	if (minor == -1)
1298 		printk(KERN_INFO "sonypi: device allocated minor is %d\n",
1299 		       sonypi_misc_device.minor);
1300 }
1301 
1302 static int sonypi_probe(struct platform_device *dev)
1303 {
1304 	const struct sonypi_ioport_list *ioport_list;
1305 	const struct sonypi_irq_list *irq_list;
1306 	struct pci_dev *pcidev;
1307 	int error;
1308 
1309 	printk(KERN_WARNING "sonypi: please try the sony-laptop module instead "
1310 			"and report failures, see also "
1311 			"http://www.linux.it/~malattia/wiki/index.php/Sony_drivers\n");
1312 
1313 	spin_lock_init(&sonypi_device.fifo_lock);
1314 	error = kfifo_alloc(&sonypi_device.fifo, SONYPI_BUF_SIZE, GFP_KERNEL);
1315 	if (error) {
1316 		printk(KERN_ERR "sonypi: kfifo_alloc failed\n");
1317 		return error;
1318 	}
1319 
1320 	init_waitqueue_head(&sonypi_device.fifo_proc_list);
1321 	mutex_init(&sonypi_device.lock);
1322 	sonypi_device.bluetooth_power = -1;
1323 
1324 	if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1325 				     PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1326 		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE1;
1327 	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1328 					  PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1329 		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE3;
1330 	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1331 					  PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1332 		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE3;
1333 	else
1334 		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE2;
1335 
1336 	if (pcidev && pci_enable_device(pcidev)) {
1337 		printk(KERN_ERR "sonypi: pci_enable_device failed\n");
1338 		error = -EIO;
1339 		goto err_put_pcidev;
1340 	}
1341 
1342 	sonypi_device.dev = pcidev;
1343 
1344 	if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) {
1345 		ioport_list = sonypi_type1_ioport_list;
1346 		sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE;
1347 		sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET;
1348 		irq_list = sonypi_type1_irq_list;
1349 	} else if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) {
1350 		ioport_list = sonypi_type2_ioport_list;
1351 		sonypi_device.region_size = SONYPI_TYPE2_REGION_SIZE;
1352 		sonypi_device.evtype_offset = SONYPI_TYPE2_EVTYPE_OFFSET;
1353 		irq_list = sonypi_type2_irq_list;
1354 	} else {
1355 		ioport_list = sonypi_type3_ioport_list;
1356 		sonypi_device.region_size = SONYPI_TYPE3_REGION_SIZE;
1357 		sonypi_device.evtype_offset = SONYPI_TYPE3_EVTYPE_OFFSET;
1358 		irq_list = sonypi_type3_irq_list;
1359 	}
1360 
1361 	error = sonypi_setup_ioports(&sonypi_device, ioport_list);
1362 	if (error) {
1363 		printk(KERN_ERR "sonypi: failed to request ioports\n");
1364 		goto err_disable_pcidev;
1365 	}
1366 
1367 	error = sonypi_setup_irq(&sonypi_device, irq_list);
1368 	if (error) {
1369 		printk(KERN_ERR "sonypi: request_irq failed\n");
1370 		goto err_free_ioports;
1371 	}
1372 
1373 	if (minor != -1)
1374 		sonypi_misc_device.minor = minor;
1375 	error = misc_register(&sonypi_misc_device);
1376 	if (error) {
1377 		printk(KERN_ERR "sonypi: misc_register failed\n");
1378 		goto err_free_irq;
1379 	}
1380 
1381 	sonypi_display_info();
1382 
1383 	if (useinput) {
1384 
1385 		error = sonypi_create_input_devices(dev);
1386 		if (error) {
1387 			printk(KERN_ERR
1388 				"sonypi: failed to create input devices\n");
1389 			goto err_miscdev_unregister;
1390 		}
1391 
1392 		spin_lock_init(&sonypi_device.input_fifo_lock);
1393 		error = kfifo_alloc(&sonypi_device.input_fifo, SONYPI_BUF_SIZE,
1394 				GFP_KERNEL);
1395 		if (error) {
1396 			printk(KERN_ERR "sonypi: kfifo_alloc failed\n");
1397 			goto err_inpdev_unregister;
1398 		}
1399 
1400 		INIT_WORK(&sonypi_device.input_work, input_keyrelease);
1401 	}
1402 
1403 	sonypi_enable(0);
1404 
1405 	return 0;
1406 
1407  err_inpdev_unregister:
1408 	input_unregister_device(sonypi_device.input_key_dev);
1409 	input_unregister_device(sonypi_device.input_jog_dev);
1410  err_miscdev_unregister:
1411 	misc_deregister(&sonypi_misc_device);
1412  err_free_irq:
1413 	free_irq(sonypi_device.irq, sonypi_irq);
1414  err_free_ioports:
1415 	release_region(sonypi_device.ioport1, sonypi_device.region_size);
1416  err_disable_pcidev:
1417 	if (pcidev)
1418 		pci_disable_device(pcidev);
1419  err_put_pcidev:
1420 	pci_dev_put(pcidev);
1421 	kfifo_free(&sonypi_device.fifo);
1422 
1423 	return error;
1424 }
1425 
1426 static int sonypi_remove(struct platform_device *dev)
1427 {
1428 	sonypi_disable();
1429 
1430 	synchronize_irq(sonypi_device.irq);
1431 	flush_work(&sonypi_device.input_work);
1432 
1433 	if (useinput) {
1434 		input_unregister_device(sonypi_device.input_key_dev);
1435 		input_unregister_device(sonypi_device.input_jog_dev);
1436 		kfifo_free(&sonypi_device.input_fifo);
1437 	}
1438 
1439 	misc_deregister(&sonypi_misc_device);
1440 
1441 	free_irq(sonypi_device.irq, sonypi_irq);
1442 	release_region(sonypi_device.ioport1, sonypi_device.region_size);
1443 
1444 	if (sonypi_device.dev) {
1445 		pci_disable_device(sonypi_device.dev);
1446 		pci_dev_put(sonypi_device.dev);
1447 	}
1448 
1449 	kfifo_free(&sonypi_device.fifo);
1450 
1451 	return 0;
1452 }
1453 
1454 #ifdef CONFIG_PM_SLEEP
1455 static int old_camera_power;
1456 
1457 static int sonypi_suspend(struct device *dev)
1458 {
1459 	old_camera_power = sonypi_device.camera_power;
1460 	sonypi_disable();
1461 
1462 	return 0;
1463 }
1464 
1465 static int sonypi_resume(struct device *dev)
1466 {
1467 	sonypi_enable(old_camera_power);
1468 	return 0;
1469 }
1470 
1471 static SIMPLE_DEV_PM_OPS(sonypi_pm, sonypi_suspend, sonypi_resume);
1472 #define SONYPI_PM	(&sonypi_pm)
1473 #else
1474 #define SONYPI_PM	NULL
1475 #endif
1476 
1477 static void sonypi_shutdown(struct platform_device *dev)
1478 {
1479 	sonypi_disable();
1480 }
1481 
1482 static struct platform_driver sonypi_driver = {
1483 	.driver		= {
1484 		.name	= "sonypi",
1485 		.pm	= SONYPI_PM,
1486 	},
1487 	.probe		= sonypi_probe,
1488 	.remove		= sonypi_remove,
1489 	.shutdown	= sonypi_shutdown,
1490 };
1491 
1492 static struct platform_device *sonypi_platform_device;
1493 
1494 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
1495 	{
1496 		.ident = "Sony Vaio",
1497 		.matches = {
1498 			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
1499 			DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
1500 		},
1501 	},
1502 	{
1503 		.ident = "Sony Vaio",
1504 		.matches = {
1505 			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
1506 			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
1507 		},
1508 	},
1509 	{ }
1510 };
1511 
1512 static int __init sonypi_init(void)
1513 {
1514 	int error;
1515 
1516 	printk(KERN_INFO
1517 		"sonypi: Sony Programmable I/O Controller Driver v%s.\n",
1518 		SONYPI_DRIVER_VERSION);
1519 
1520 	if (!dmi_check_system(sonypi_dmi_table))
1521 		return -ENODEV;
1522 
1523 	error = platform_driver_register(&sonypi_driver);
1524 	if (error)
1525 		return error;
1526 
1527 	sonypi_platform_device = platform_device_alloc("sonypi", -1);
1528 	if (!sonypi_platform_device) {
1529 		error = -ENOMEM;
1530 		goto err_driver_unregister;
1531 	}
1532 
1533 	error = platform_device_add(sonypi_platform_device);
1534 	if (error)
1535 		goto err_free_device;
1536 
1537 #ifdef CONFIG_ACPI
1538 	if (acpi_bus_register_driver(&sonypi_acpi_driver) >= 0)
1539 		acpi_driver_registered = 1;
1540 #endif
1541 
1542 	return 0;
1543 
1544  err_free_device:
1545 	platform_device_put(sonypi_platform_device);
1546  err_driver_unregister:
1547 	platform_driver_unregister(&sonypi_driver);
1548 	return error;
1549 }
1550 
1551 static void __exit sonypi_exit(void)
1552 {
1553 #ifdef CONFIG_ACPI
1554 	if (acpi_driver_registered)
1555 		acpi_bus_unregister_driver(&sonypi_acpi_driver);
1556 #endif
1557 	platform_device_unregister(sonypi_platform_device);
1558 	platform_driver_unregister(&sonypi_driver);
1559 	printk(KERN_INFO "sonypi: removed.\n");
1560 }
1561 
1562 module_init(sonypi_init);
1563 module_exit(sonypi_exit);
1564