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llseek: automatically add .llseek fop
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / platform / x86 / sony-laptop.c
blobf200677851b8bcc508cdee1f350c3c829d31a12d
1 /*
2 * ACPI Sony Notebook Control Driver (SNC and SPIC)
3 *
4 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
5 * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
6 *
7 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
8 * which are copyrighted by their respective authors.
9 *
10 * The SNY6001 driver part is based on the sonypi driver which includes
11 * material from:
12 *
13 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
14 *
15 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
16 *
17 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
18 *
19 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
20 *
21 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
22 *
23 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
24 *
25 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
26 *
27 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
28 *
29 * This program is free software; you can redistribute it and/or modify
30 * it under the terms of the GNU General Public License as published by
31 * the Free Software Foundation; either version 2 of the License, or
32 * (at your option) any later version.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
42 *
43 */
44
45 #include <linux/kernel.h>
46 #include <linux/module.h>
47 #include <linux/moduleparam.h>
48 #include <linux/init.h>
49 #include <linux/types.h>
50 #include <linux/backlight.h>
51 #include <linux/platform_device.h>
52 #include <linux/err.h>
53 #include <linux/dmi.h>
54 #include <linux/pci.h>
55 #include <linux/interrupt.h>
56 #include <linux/delay.h>
57 #include <linux/input.h>
58 #include <linux/kfifo.h>
59 #include <linux/workqueue.h>
60 #include <linux/acpi.h>
61 #include <linux/slab.h>
62 #include <acpi/acpi_drivers.h>
63 #include <acpi/acpi_bus.h>
64 #include <asm/uaccess.h>
65 #include <linux/sonypi.h>
66 #include <linux/sony-laptop.h>
67 #include <linux/rfkill.h>
68 #ifdef CONFIG_SONYPI_COMPAT
69 #include <linux/poll.h>
70 #include <linux/miscdevice.h>
71 #endif
72
73 #define DRV_PFX "sony-laptop: "
74 #define dprintk(msg...) do { \
75 if (debug) printk(KERN_WARNING DRV_PFX msg); \
76 } while (0)
77
78 #define SONY_LAPTOP_DRIVER_VERSION "0.6"
79
80 #define SONY_NC_CLASS "sony-nc"
81 #define SONY_NC_HID "SNY5001"
82 #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
83
84 #define SONY_PIC_CLASS "sony-pic"
85 #define SONY_PIC_HID "SNY6001"
86 #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
87
88 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
89 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
90 MODULE_LICENSE("GPL");
91 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
92
93 static int debug;
94 module_param(debug, int, 0);
95 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
96 "the development of this driver");
97
98 static int no_spic; /* = 0 */
99 module_param(no_spic, int, 0444);
100 MODULE_PARM_DESC(no_spic,
101 "set this if you don't want to enable the SPIC device");
102
103 static int compat; /* = 0 */
104 module_param(compat, int, 0444);
105 MODULE_PARM_DESC(compat,
106 "set this if you want to enable backward compatibility mode");
107
108 static unsigned long mask = 0xffffffff;
109 module_param(mask, ulong, 0644);
110 MODULE_PARM_DESC(mask,
111 "set this to the mask of event you want to enable (see doc)");
112
113 static int camera; /* = 0 */
114 module_param(camera, int, 0444);
115 MODULE_PARM_DESC(camera,
116 "set this to 1 to enable Motion Eye camera controls "
117 "(only use it if you have a C1VE or C1VN model)");
118
119 #ifdef CONFIG_SONYPI_COMPAT
120 static int minor = -1;
121 module_param(minor, int, 0);
122 MODULE_PARM_DESC(minor,
123 "minor number of the misc device for the SPIC compatibility code, "
124 "default is -1 (automatic)");
125 #endif
126
127 enum sony_nc_rfkill {
128 SONY_WIFI,
129 SONY_BLUETOOTH,
130 SONY_WWAN,
131 SONY_WIMAX,
132 N_SONY_RFKILL,
133 };
134
135 static int sony_rfkill_handle;
136 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
137 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
138 static void sony_nc_rfkill_update(void);
139
140 /*********** Input Devices ***********/
141
142 #define SONY_LAPTOP_BUF_SIZE 128
143 struct sony_laptop_input_s {
144 atomic_t users;
145 struct input_dev *jog_dev;
146 struct input_dev *key_dev;
147 struct kfifo fifo;
148 spinlock_t fifo_lock;
149 struct timer_list release_key_timer;
150 };
151
152 static struct sony_laptop_input_s sony_laptop_input = {
153 .users = ATOMIC_INIT(0),
154 };
155
156 struct sony_laptop_keypress {
157 struct input_dev *dev;
158 int key;
159 };
160
161 /* Correspondance table between sonypi events
162 * and input layer indexes in the keymap
163 */
164 static int sony_laptop_input_index[] = {
165 -1, /* 0 no event */
166 -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */
167 -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */
168 -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
169 -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
170 -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */
171 -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */
172 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */
173 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */
174 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
175 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
176 4, /* 11 SONYPI_EVENT_FNKEY_ESC */
177 5, /* 12 SONYPI_EVENT_FNKEY_F1 */
178 6, /* 13 SONYPI_EVENT_FNKEY_F2 */
179 7, /* 14 SONYPI_EVENT_FNKEY_F3 */
180 8, /* 15 SONYPI_EVENT_FNKEY_F4 */
181 9, /* 16 SONYPI_EVENT_FNKEY_F5 */
182 10, /* 17 SONYPI_EVENT_FNKEY_F6 */
183 11, /* 18 SONYPI_EVENT_FNKEY_F7 */
184 12, /* 19 SONYPI_EVENT_FNKEY_F8 */
185 13, /* 20 SONYPI_EVENT_FNKEY_F9 */
186 14, /* 21 SONYPI_EVENT_FNKEY_F10 */
187 15, /* 22 SONYPI_EVENT_FNKEY_F11 */
188 16, /* 23 SONYPI_EVENT_FNKEY_F12 */
189 17, /* 24 SONYPI_EVENT_FNKEY_1 */
190 18, /* 25 SONYPI_EVENT_FNKEY_2 */
191 19, /* 26 SONYPI_EVENT_FNKEY_D */
192 20, /* 27 SONYPI_EVENT_FNKEY_E */
193 21, /* 28 SONYPI_EVENT_FNKEY_F */
194 22, /* 29 SONYPI_EVENT_FNKEY_S */
195 23, /* 30 SONYPI_EVENT_FNKEY_B */
196 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
197 25, /* 32 SONYPI_EVENT_PKEY_P1 */
198 26, /* 33 SONYPI_EVENT_PKEY_P2 */
199 27, /* 34 SONYPI_EVENT_PKEY_P3 */
200 28, /* 35 SONYPI_EVENT_BACK_PRESSED */
201 -1, /* 36 SONYPI_EVENT_LID_CLOSED */
202 -1, /* 37 SONYPI_EVENT_LID_OPENED */
203 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */
204 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
205 31, /* 40 SONYPI_EVENT_HELP_PRESSED */
206 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */
207 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
208 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
209 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
210 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
211 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
212 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
213 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
214 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
215 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */
216 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
217 43, /* 52 SONYPI_EVENT_MEYE_FACE */
218 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
219 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
220 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
221 -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
222 -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */
223 -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */
224 -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */
225 47, /* 60 SONYPI_EVENT_WIRELESS_ON */
226 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */
227 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
228 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
229 51, /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
230 52, /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
231 53, /* 66 SONYPI_EVENT_PKEY_P4 */
232 54, /* 67 SONYPI_EVENT_PKEY_P5 */
233 55, /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
234 56, /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
235 57, /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
236 -1, /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
237 58, /* 72 SONYPI_EVENT_MEDIA_PRESSED */
238 };
239
240 static int sony_laptop_input_keycode_map[] = {
241 KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
242 KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
243 KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
244 KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
245 KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
246 KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
247 KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
248 KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
249 KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
250 KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
251 KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
252 KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
253 KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
254 KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
255 KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
256 KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
257 KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
258 KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */
259 KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */
260 KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
261 KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
262 KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
263 KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
264 KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
265 KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
266 KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
267 KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
268 KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
269 KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
270 KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
271 KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
272 KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
273 KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
274 KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
275 KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
276 KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
277 KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
278 KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
279 KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
280 KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
281 KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
282 KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
283 BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
284 KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
285 KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
286 KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
287 KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
288 KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
289 KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
290 KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
291 KEY_ZOOMOUT, /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
292 KEY_EJECTCD, /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
293 KEY_F13, /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
294 KEY_PROG4, /* 53 SONYPI_EVENT_PKEY_P4 */
295 KEY_F14, /* 54 SONYPI_EVENT_PKEY_P5 */
296 KEY_F15, /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
297 KEY_VOLUMEUP, /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
298 KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
299 KEY_MEDIA, /* 58 SONYPI_EVENT_MEDIA_PRESSED */
300 };
301
302 /* release buttons after a short delay if pressed */
303 static void do_sony_laptop_release_key(unsigned long unused)
304 {
305 struct sony_laptop_keypress kp;
306 unsigned long flags;
307
308 spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
309
310 if (kfifo_out(&sony_laptop_input.fifo,
311 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
312 input_report_key(kp.dev, kp.key, 0);
313 input_sync(kp.dev);
314 }
315
316 /* If there is something in the fifo schedule next release. */
317 if (kfifo_len(&sony_laptop_input.fifo) != 0)
318 mod_timer(&sony_laptop_input.release_key_timer,
319 jiffies + msecs_to_jiffies(10));
320
321 spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
322 }
323
324 /* forward event to the input subsystem */
325 static void sony_laptop_report_input_event(u8 event)
326 {
327 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
328 struct input_dev *key_dev = sony_laptop_input.key_dev;
329 struct sony_laptop_keypress kp = { NULL };
330
331 if (event == SONYPI_EVENT_FNKEY_RELEASED ||
332 event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
333 /* Nothing, not all VAIOs generate this event */
334 return;
335 }
336
337 /* report events */
338 switch (event) {
339 /* jog_dev events */
340 case SONYPI_EVENT_JOGDIAL_UP:
341 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
342 input_report_rel(jog_dev, REL_WHEEL, 1);
343 input_sync(jog_dev);
344 return;
345
346 case SONYPI_EVENT_JOGDIAL_DOWN:
347 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
348 input_report_rel(jog_dev, REL_WHEEL, -1);
349 input_sync(jog_dev);
350 return;
351
352 /* key_dev events */
353 case SONYPI_EVENT_JOGDIAL_PRESSED:
354 kp.key = BTN_MIDDLE;
355 kp.dev = jog_dev;
356 break;
357
358 default:
359 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
360 dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
361 break;
362 }
363 if (sony_laptop_input_index[event] != -1) {
364 kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
365 if (kp.key != KEY_UNKNOWN)
366 kp.dev = key_dev;
367 }
368 break;
369 }
370
371 if (kp.dev) {
372 input_report_key(kp.dev, kp.key, 1);
373 /* we emit the scancode so we can always remap the key */
374 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
375 input_sync(kp.dev);
376
377 /* schedule key release */
378 kfifo_in_locked(&sony_laptop_input.fifo,
379 (unsigned char *)&kp, sizeof(kp),
380 &sony_laptop_input.fifo_lock);
381 mod_timer(&sony_laptop_input.release_key_timer,
382 jiffies + msecs_to_jiffies(10));
383 } else
384 dprintk("unknown input event %.2x\n", event);
385 }
386
387 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
388 {
389 struct input_dev *jog_dev;
390 struct input_dev *key_dev;
391 int i;
392 int error;
393
394 /* don't run again if already initialized */
395 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
396 return 0;
397
398 /* kfifo */
399 spin_lock_init(&sony_laptop_input.fifo_lock);
400 error = kfifo_alloc(&sony_laptop_input.fifo,
401 SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
402 if (error) {
403 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
404 goto err_dec_users;
405 }
406
407 setup_timer(&sony_laptop_input.release_key_timer,
408 do_sony_laptop_release_key, 0);
409
410 /* input keys */
411 key_dev = input_allocate_device();
412 if (!key_dev) {
413 error = -ENOMEM;
414 goto err_free_kfifo;
415 }
416
417 key_dev->name = "Sony Vaio Keys";
418 key_dev->id.bustype = BUS_ISA;
419 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
420 key_dev->dev.parent = &acpi_device->dev;
421
422 /* Initialize the Input Drivers: special keys */
423 input_set_capability(key_dev, EV_MSC, MSC_SCAN);
424
425 __set_bit(EV_KEY, key_dev->evbit);
426 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
427 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
428 key_dev->keycode = &sony_laptop_input_keycode_map;
429 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
430 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
431 __clear_bit(KEY_RESERVED, key_dev->keybit);
432
433 error = input_register_device(key_dev);
434 if (error)
435 goto err_free_keydev;
436
437 sony_laptop_input.key_dev = key_dev;
438
439 /* jogdial */
440 jog_dev = input_allocate_device();
441 if (!jog_dev) {
442 error = -ENOMEM;
443 goto err_unregister_keydev;
444 }
445
446 jog_dev->name = "Sony Vaio Jogdial";
447 jog_dev->id.bustype = BUS_ISA;
448 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
449 key_dev->dev.parent = &acpi_device->dev;
450
451 input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
452 input_set_capability(jog_dev, EV_REL, REL_WHEEL);
453
454 error = input_register_device(jog_dev);
455 if (error)
456 goto err_free_jogdev;
457
458 sony_laptop_input.jog_dev = jog_dev;
459
460 return 0;
461
462 err_free_jogdev:
463 input_free_device(jog_dev);
464
465 err_unregister_keydev:
466 input_unregister_device(key_dev);
467 /* to avoid kref underflow below at input_free_device */
468 key_dev = NULL;
469
470 err_free_keydev:
471 input_free_device(key_dev);
472
473 err_free_kfifo:
474 kfifo_free(&sony_laptop_input.fifo);
475
476 err_dec_users:
477 atomic_dec(&sony_laptop_input.users);
478 return error;
479 }
480
481 static void sony_laptop_remove_input(void)
482 {
483 struct sony_laptop_keypress kp = { NULL };
484
485 /* Cleanup only after the last user has gone */
486 if (!atomic_dec_and_test(&sony_laptop_input.users))
487 return;
488
489 del_timer_sync(&sony_laptop_input.release_key_timer);
490
491 /*
492 * Generate key-up events for remaining keys. Note that we don't
493 * need locking since nobody is adding new events to the kfifo.
494 */
495 while (kfifo_out(&sony_laptop_input.fifo,
496 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
497 input_report_key(kp.dev, kp.key, 0);
498 input_sync(kp.dev);
499 }
500
501 /* destroy input devs */
502 input_unregister_device(sony_laptop_input.key_dev);
503 sony_laptop_input.key_dev = NULL;
504
505 if (sony_laptop_input.jog_dev) {
506 input_unregister_device(sony_laptop_input.jog_dev);
507 sony_laptop_input.jog_dev = NULL;
508 }
509
510 kfifo_free(&sony_laptop_input.fifo);
511 }
512
513 /*********** Platform Device ***********/
514
515 static atomic_t sony_pf_users = ATOMIC_INIT(0);
516 static struct platform_driver sony_pf_driver = {
517 .driver = {
518 .name = "sony-laptop",
519 .owner = THIS_MODULE,
520 }
521 };
522 static struct platform_device *sony_pf_device;
523
524 static int sony_pf_add(void)
525 {
526 int ret = 0;
527
528 /* don't run again if already initialized */
529 if (atomic_add_return(1, &sony_pf_users) > 1)
530 return 0;
531
532 ret = platform_driver_register(&sony_pf_driver);
533 if (ret)
534 goto out;
535
536 sony_pf_device = platform_device_alloc("sony-laptop", -1);
537 if (!sony_pf_device) {
538 ret = -ENOMEM;
539 goto out_platform_registered;
540 }
541
542 ret = platform_device_add(sony_pf_device);
543 if (ret)
544 goto out_platform_alloced;
545
546 return 0;
547
548 out_platform_alloced:
549 platform_device_put(sony_pf_device);
550 sony_pf_device = NULL;
551 out_platform_registered:
552 platform_driver_unregister(&sony_pf_driver);
553 out:
554 atomic_dec(&sony_pf_users);
555 return ret;
556 }
557
558 static void sony_pf_remove(void)
559 {
560 /* deregister only after the last user has gone */
561 if (!atomic_dec_and_test(&sony_pf_users))
562 return;
563
564 platform_device_unregister(sony_pf_device);
565 platform_driver_unregister(&sony_pf_driver);
566 }
567
568 /*********** SNC (SNY5001) Device ***********/
569
570 /* the device uses 1-based values, while the backlight subsystem uses
571 0-based values */
572 #define SONY_MAX_BRIGHTNESS 8
573
574 #define SNC_VALIDATE_IN 0
575 #define SNC_VALIDATE_OUT 1
576
577 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
578 char *);
579 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
580 const char *, size_t);
581 static int boolean_validate(const int, const int);
582 static int brightness_default_validate(const int, const int);
583
584 struct sony_nc_value {
585 char *name; /* name of the entry */
586 char **acpiget; /* names of the ACPI get function */
587 char **acpiset; /* names of the ACPI set function */
588 int (*validate)(const int, const int); /* input/output validation */
589 int value; /* current setting */
590 int valid; /* Has ever been set */
591 int debug; /* active only in debug mode ? */
592 struct device_attribute devattr; /* sysfs atribute */
593 };
594
595 #define SNC_HANDLE_NAMES(_name, _values...) \
596 static char *snc_##_name[] = { _values, NULL }
597
598 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
599 { \
600 .name = __stringify(_name), \
601 .acpiget = _getters, \
602 .acpiset = _setters, \
603 .validate = _validate, \
604 .debug = _debug, \
605 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
606 }
607
608 #define SNC_HANDLE_NULL { .name = NULL }
609
610 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
611
612 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
613 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
614
615 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
616 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
617
618 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
619 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
620
621 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
622 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
623
624 SNC_HANDLE_NAMES(lidstate_get, "GLID");
625
626 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
627 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
628
629 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
630 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
631
632 SNC_HANDLE_NAMES(PID_get, "GPID");
633
634 SNC_HANDLE_NAMES(CTR_get, "GCTR");
635 SNC_HANDLE_NAMES(CTR_set, "SCTR");
636
637 SNC_HANDLE_NAMES(PCR_get, "GPCR");
638 SNC_HANDLE_NAMES(PCR_set, "SPCR");
639
640 SNC_HANDLE_NAMES(CMI_get, "GCMI");
641 SNC_HANDLE_NAMES(CMI_set, "SCMI");
642
643 static struct sony_nc_value sony_nc_values[] = {
644 SNC_HANDLE(brightness_default, snc_brightness_def_get,
645 snc_brightness_def_set, brightness_default_validate, 0),
646 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
647 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
648 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
649 boolean_validate, 0),
650 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
651 boolean_validate, 1),
652 SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
653 boolean_validate, 0),
654 SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
655 boolean_validate, 0),
656 SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
657 boolean_validate, 0),
658 /* unknown methods */
659 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
660 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
661 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
662 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
663 SNC_HANDLE_NULL
664 };
665
666 static acpi_handle sony_nc_acpi_handle;
667 static struct acpi_device *sony_nc_acpi_device = NULL;
668
669 /*
670 * acpi_evaluate_object wrappers
671 */
672 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
673 {
674 struct acpi_buffer output;
675 union acpi_object out_obj;
676 acpi_status status;
677
678 output.length = sizeof(out_obj);
679 output.pointer = &out_obj;
680
681 status = acpi_evaluate_object(handle, name, NULL, &output);
682 if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
683 *result = out_obj.integer.value;
684 return 0;
685 }
686
687 printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
688
689 return -1;
690 }
691
692 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
693 int *result)
694 {
695 struct acpi_object_list params;
696 union acpi_object in_obj;
697 struct acpi_buffer output;
698 union acpi_object out_obj;
699 acpi_status status;
700
701 params.count = 1;
702 params.pointer = &in_obj;
703 in_obj.type = ACPI_TYPE_INTEGER;
704 in_obj.integer.value = value;
705
706 output.length = sizeof(out_obj);
707 output.pointer = &out_obj;
708
709 status = acpi_evaluate_object(handle, name, &params, &output);
710 if (status == AE_OK) {
711 if (result != NULL) {
712 if (out_obj.type != ACPI_TYPE_INTEGER) {
713 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
714 "return type\n");
715 return -1;
716 }
717 *result = out_obj.integer.value;
718 }
719 return 0;
720 }
721
722 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
723
724 return -1;
725 }
726
727 static int sony_find_snc_handle(int handle)
728 {
729 int i;
730 int result;
731
732 for (i = 0x20; i < 0x30; i++) {
733 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
734 if (result == handle)
735 return i-0x20;
736 }
737
738 return -1;
739 }
740
741 static int sony_call_snc_handle(int handle, int argument, int *result)
742 {
743 int offset = sony_find_snc_handle(handle);
744
745 if (offset < 0)
746 return -1;
747
748 return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
749 result);
750 }
751
752 /*
753 * sony_nc_values input/output validate functions
754 */
755
756 /* brightness_default_validate:
757 *
758 * manipulate input output values to keep consistency with the
759 * backlight framework for which brightness values are 0-based.
760 */
761 static int brightness_default_validate(const int direction, const int value)
762 {
763 switch (direction) {
764 case SNC_VALIDATE_OUT:
765 return value - 1;
766 case SNC_VALIDATE_IN:
767 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
768 return value + 1;
769 }
770 return -EINVAL;
771 }
772
773 /* boolean_validate:
774 *
775 * on input validate boolean values 0/1, on output just pass the
776 * received value.
777 */
778 static int boolean_validate(const int direction, const int value)
779 {
780 if (direction == SNC_VALIDATE_IN) {
781 if (value != 0 && value != 1)
782 return -EINVAL;
783 }
784 return value;
785 }
786
787 /*
788 * Sysfs show/store common to all sony_nc_values
789 */
790 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
791 char *buffer)
792 {
793 int value;
794 struct sony_nc_value *item =
795 container_of(attr, struct sony_nc_value, devattr);
796
797 if (!*item->acpiget)
798 return -EIO;
799
800 if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
801 return -EIO;
802
803 if (item->validate)
804 value = item->validate(SNC_VALIDATE_OUT, value);
805
806 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
807 }
808
809 static ssize_t sony_nc_sysfs_store(struct device *dev,
810 struct device_attribute *attr,
811 const char *buffer, size_t count)
812 {
813 int value;
814 struct sony_nc_value *item =
815 container_of(attr, struct sony_nc_value, devattr);
816
817 if (!item->acpiset)
818 return -EIO;
819
820 if (count > 31)
821 return -EINVAL;
822
823 value = simple_strtoul(buffer, NULL, 10);
824
825 if (item->validate)
826 value = item->validate(SNC_VALIDATE_IN, value);
827
828 if (value < 0)
829 return value;
830
831 if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
832 return -EIO;
833 item->value = value;
834 item->valid = 1;
835 return count;
836 }
837
838
839 /*
840 * Backlight device
841 */
842 static int sony_backlight_update_status(struct backlight_device *bd)
843 {
844 return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
845 bd->props.brightness + 1, NULL);
846 }
847
848 static int sony_backlight_get_brightness(struct backlight_device *bd)
849 {
850 int value;
851
852 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
853 return 0;
854 /* brightness levels are 1-based, while backlight ones are 0-based */
855 return value - 1;
856 }
857
858 static struct backlight_device *sony_backlight_device;
859 static struct backlight_ops sony_backlight_ops = {
860 .update_status = sony_backlight_update_status,
861 .get_brightness = sony_backlight_get_brightness,
862 };
863
864 /*
865 * New SNC-only Vaios event mapping to driver known keys
866 */
867 struct sony_nc_event {
868 u8 data;
869 u8 event;
870 };
871
872 static struct sony_nc_event sony_100_events[] = {
873 { 0x90, SONYPI_EVENT_PKEY_P1 },
874 { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
875 { 0x91, SONYPI_EVENT_PKEY_P2 },
876 { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
877 { 0x81, SONYPI_EVENT_FNKEY_F1 },
878 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
879 { 0x82, SONYPI_EVENT_FNKEY_F2 },
880 { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
881 { 0x83, SONYPI_EVENT_FNKEY_F3 },
882 { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
883 { 0x84, SONYPI_EVENT_FNKEY_F4 },
884 { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
885 { 0x85, SONYPI_EVENT_FNKEY_F5 },
886 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
887 { 0x86, SONYPI_EVENT_FNKEY_F6 },
888 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
889 { 0x87, SONYPI_EVENT_FNKEY_F7 },
890 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
891 { 0x89, SONYPI_EVENT_FNKEY_F9 },
892 { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
893 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
894 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
895 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
896 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
897 { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
898 { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
899 { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
900 { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
901 { 0, 0 },
902 };
903
904 static struct sony_nc_event sony_127_events[] = {
905 { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
906 { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
907 { 0x82, SONYPI_EVENT_PKEY_P1 },
908 { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
909 { 0x83, SONYPI_EVENT_PKEY_P2 },
910 { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
911 { 0x84, SONYPI_EVENT_PKEY_P3 },
912 { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
913 { 0x85, SONYPI_EVENT_PKEY_P4 },
914 { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
915 { 0x86, SONYPI_EVENT_PKEY_P5 },
916 { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
917 { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
918 { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
919 { 0, 0 },
920 };
921
922 /*
923 * ACPI callbacks
924 */
925 static void sony_nc_notify(struct acpi_device *device, u32 event)
926 {
927 u32 ev = event;
928
929 if (ev >= 0x90) {
930 /* New-style event */
931 int result;
932 int key_handle = 0;
933 ev -= 0x90;
934
935 if (sony_find_snc_handle(0x100) == ev)
936 key_handle = 0x100;
937 if (sony_find_snc_handle(0x127) == ev)
938 key_handle = 0x127;
939
940 if (key_handle) {
941 struct sony_nc_event *key_event;
942
943 if (sony_call_snc_handle(key_handle, 0x200, &result)) {
944 dprintk("sony_nc_notify, unable to decode"
945 " event 0x%.2x 0x%.2x\n", key_handle,
946 ev);
947 /* restore the original event */
948 ev = event;
949 } else {
950 ev = result & 0xFF;
951
952 if (key_handle == 0x100)
953 key_event = sony_100_events;
954 else
955 key_event = sony_127_events;
956
957 for (; key_event->data; key_event++) {
958 if (key_event->data == ev) {
959 ev = key_event->event;
960 break;
961 }
962 }
963
964 if (!key_event->data)
965 printk(KERN_INFO DRV_PFX
966 "Unknown event: 0x%x 0x%x\n",
967 key_handle,
968 ev);
969 else
970 sony_laptop_report_input_event(ev);
971 }
972 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
973 sony_nc_rfkill_update();
974 return;
975 }
976 } else
977 sony_laptop_report_input_event(ev);
978
979 dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
980 acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
981 }
982
983 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
984 void *context, void **return_value)
985 {
986 struct acpi_device_info *info;
987
988 if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
989 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
990 (char *)&info->name, info->param_count);
991
992 kfree(info);
993 }
994
995 return AE_OK;
996 }
997
998 /*
999 * ACPI device
1000 */
1001 static int sony_nc_function_setup(struct acpi_device *device)
1002 {
1003 int result;
1004
1005 /* Enable all events */
1006 acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1007
1008 /* Setup hotkeys */
1009 sony_call_snc_handle(0x0100, 0, &result);
1010 sony_call_snc_handle(0x0101, 0, &result);
1011 sony_call_snc_handle(0x0102, 0x100, &result);
1012 sony_call_snc_handle(0x0127, 0, &result);
1013
1014 return 0;
1015 }
1016
1017 static int sony_nc_resume(struct acpi_device *device)
1018 {
1019 struct sony_nc_value *item;
1020 acpi_handle handle;
1021
1022 for (item = sony_nc_values; item->name; item++) {
1023 int ret;
1024
1025 if (!item->valid)
1026 continue;
1027 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1028 item->value, NULL);
1029 if (ret < 0) {
1030 printk("%s: %d\n", __func__, ret);
1031 break;
1032 }
1033 }
1034
1035 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1036 &handle))) {
1037 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1038 dprintk("ECON Method failed\n");
1039 }
1040
1041 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1042 &handle))) {
1043 dprintk("Doing SNC setup\n");
1044 sony_nc_function_setup(device);
1045 }
1046
1047 /* set the last requested brightness level */
1048 if (sony_backlight_device &&
1049 sony_backlight_update_status(sony_backlight_device) < 0)
1050 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1051
1052 /* re-read rfkill state */
1053 sony_nc_rfkill_update();
1054
1055 return 0;
1056 }
1057
1058 static void sony_nc_rfkill_cleanup(void)
1059 {
1060 int i;
1061
1062 for (i = 0; i < N_SONY_RFKILL; i++) {
1063 if (sony_rfkill_devices[i]) {
1064 rfkill_unregister(sony_rfkill_devices[i]);
1065 rfkill_destroy(sony_rfkill_devices[i]);
1066 }
1067 }
1068 }
1069
1070 static int sony_nc_rfkill_set(void *data, bool blocked)
1071 {
1072 int result;
1073 int argument = sony_rfkill_address[(long) data] + 0x100;
1074
1075 if (!blocked)
1076 argument |= 0xff0000;
1077
1078 return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1079 }
1080
1081 static const struct rfkill_ops sony_rfkill_ops = {
1082 .set_block = sony_nc_rfkill_set,
1083 };
1084
1085 static int sony_nc_setup_rfkill(struct acpi_device *device,
1086 enum sony_nc_rfkill nc_type)
1087 {
1088 int err = 0;
1089 struct rfkill *rfk;
1090 enum rfkill_type type;
1091 const char *name;
1092 int result;
1093 bool hwblock;
1094
1095 switch (nc_type) {
1096 case SONY_WIFI:
1097 type = RFKILL_TYPE_WLAN;
1098 name = "sony-wifi";
1099 break;
1100 case SONY_BLUETOOTH:
1101 type = RFKILL_TYPE_BLUETOOTH;
1102 name = "sony-bluetooth";
1103 break;
1104 case SONY_WWAN:
1105 type = RFKILL_TYPE_WWAN;
1106 name = "sony-wwan";
1107 break;
1108 case SONY_WIMAX:
1109 type = RFKILL_TYPE_WIMAX;
1110 name = "sony-wimax";
1111 break;
1112 default:
1113 return -EINVAL;
1114 }
1115
1116 rfk = rfkill_alloc(name, &device->dev, type,
1117 &sony_rfkill_ops, (void *)nc_type);
1118 if (!rfk)
1119 return -ENOMEM;
1120
1121 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1122 hwblock = !(result & 0x1);
1123 rfkill_set_hw_state(rfk, hwblock);
1124
1125 err = rfkill_register(rfk);
1126 if (err) {
1127 rfkill_destroy(rfk);
1128 return err;
1129 }
1130 sony_rfkill_devices[nc_type] = rfk;
1131 return err;
1132 }
1133
1134 static void sony_nc_rfkill_update()
1135 {
1136 enum sony_nc_rfkill i;
1137 int result;
1138 bool hwblock;
1139
1140 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1141 hwblock = !(result & 0x1);
1142
1143 for (i = 0; i < N_SONY_RFKILL; i++) {
1144 int argument = sony_rfkill_address[i];
1145
1146 if (!sony_rfkill_devices[i])
1147 continue;
1148
1149 if (hwblock) {
1150 if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1151 /* we already know we're blocked */
1152 }
1153 continue;
1154 }
1155
1156 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1157 rfkill_set_states(sony_rfkill_devices[i],
1158 !(result & 0xf), false);
1159 }
1160 }
1161
1162 static void sony_nc_rfkill_setup(struct acpi_device *device)
1163 {
1164 int offset;
1165 u8 dev_code, i;
1166 acpi_status status;
1167 struct acpi_object_list params;
1168 union acpi_object in_obj;
1169 union acpi_object *device_enum;
1170 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1171
1172 offset = sony_find_snc_handle(0x124);
1173 if (offset == -1) {
1174 offset = sony_find_snc_handle(0x135);
1175 if (offset == -1)
1176 return;
1177 else
1178 sony_rfkill_handle = 0x135;
1179 } else
1180 sony_rfkill_handle = 0x124;
1181 dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1182
1183 /* need to read the whole buffer returned by the acpi call to SN06
1184 * here otherwise we may miss some features
1185 */
1186 params.count = 1;
1187 params.pointer = &in_obj;
1188 in_obj.type = ACPI_TYPE_INTEGER;
1189 in_obj.integer.value = offset;
1190 status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1191 &buffer);
1192 if (ACPI_FAILURE(status)) {
1193 dprintk("Radio device enumeration failed\n");
1194 return;
1195 }
1196
1197 device_enum = (union acpi_object *) buffer.pointer;
1198 if (!device_enum) {
1199 pr_err("Invalid SN06 return object\n");
1200 goto out_no_enum;
1201 }
1202 if (device_enum->type != ACPI_TYPE_BUFFER) {
1203 pr_err("Invalid SN06 return object type 0x%.2x\n",
1204 device_enum->type);
1205 goto out_no_enum;
1206 }
1207
1208 /* the buffer is filled with magic numbers describing the devices
1209 * available, 0xff terminates the enumeration
1210 */
1211 for (i = 0; i < device_enum->buffer.length; i++) {
1212
1213 dev_code = *(device_enum->buffer.pointer + i);
1214 if (dev_code == 0xff)
1215 break;
1216
1217 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1218
1219 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1220 sony_nc_setup_rfkill(device, SONY_WIFI);
1221
1222 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1223 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1224
1225 if ((0xf0 & dev_code) == 0x20 &&
1226 !sony_rfkill_devices[SONY_WWAN])
1227 sony_nc_setup_rfkill(device, SONY_WWAN);
1228
1229 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1230 sony_nc_setup_rfkill(device, SONY_WIMAX);
1231 }
1232
1233 out_no_enum:
1234 kfree(buffer.pointer);
1235 return;
1236 }
1237
1238 static int sony_nc_add(struct acpi_device *device)
1239 {
1240 acpi_status status;
1241 int result = 0;
1242 acpi_handle handle;
1243 struct sony_nc_value *item;
1244
1245 printk(KERN_INFO DRV_PFX "%s v%s.\n",
1246 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1247
1248 sony_nc_acpi_device = device;
1249 strcpy(acpi_device_class(device), "sony/hotkey");
1250
1251 sony_nc_acpi_handle = device->handle;
1252
1253 /* read device status */
1254 result = acpi_bus_get_status(device);
1255 /* bail IFF the above call was successful and the device is not present */
1256 if (!result && !device->status.present) {
1257 dprintk("Device not present\n");
1258 result = -ENODEV;
1259 goto outwalk;
1260 }
1261
1262 if (debug) {
1263 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1264 1, sony_walk_callback, NULL, NULL, NULL);
1265 if (ACPI_FAILURE(status)) {
1266 printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1267 result = -ENODEV;
1268 goto outwalk;
1269 }
1270 }
1271
1272 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1273 &handle))) {
1274 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1275 dprintk("ECON Method failed\n");
1276 }
1277
1278 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1279 &handle))) {
1280 dprintk("Doing SNC setup\n");
1281 sony_nc_function_setup(device);
1282 sony_nc_rfkill_setup(device);
1283 }
1284
1285 /* setup input devices and helper fifo */
1286 result = sony_laptop_setup_input(device);
1287 if (result) {
1288 printk(KERN_ERR DRV_PFX
1289 "Unable to create input devices.\n");
1290 goto outwalk;
1291 }
1292
1293 if (acpi_video_backlight_support()) {
1294 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1295 "controlled by ACPI video driver\n");
1296 } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1297 &handle))) {
1298 struct backlight_properties props;
1299 memset(&props, 0, sizeof(struct backlight_properties));
1300 props.max_brightness = SONY_MAX_BRIGHTNESS - 1;
1301 sony_backlight_device = backlight_device_register("sony", NULL,
1302 NULL,
1303 &sony_backlight_ops,
1304 &props);
1305
1306 if (IS_ERR(sony_backlight_device)) {
1307 printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1308 sony_backlight_device = NULL;
1309 } else {
1310 sony_backlight_device->props.brightness =
1311 sony_backlight_get_brightness
1312 (sony_backlight_device);
1313 }
1314
1315 }
1316
1317 result = sony_pf_add();
1318 if (result)
1319 goto outbacklight;
1320
1321 /* create sony_pf sysfs attributes related to the SNC device */
1322 for (item = sony_nc_values; item->name; ++item) {
1323
1324 if (!debug && item->debug)
1325 continue;
1326
1327 /* find the available acpiget as described in the DSDT */
1328 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1329 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1330 *item->acpiget,
1331 &handle))) {
1332 dprintk("Found %s getter: %s\n",
1333 item->name, *item->acpiget);
1334 item->devattr.attr.mode |= S_IRUGO;
1335 break;
1336 }
1337 }
1338
1339 /* find the available acpiset as described in the DSDT */
1340 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1341 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1342 *item->acpiset,
1343 &handle))) {
1344 dprintk("Found %s setter: %s\n",
1345 item->name, *item->acpiset);
1346 item->devattr.attr.mode |= S_IWUSR;
1347 break;
1348 }
1349 }
1350
1351 if (item->devattr.attr.mode != 0) {
1352 result =
1353 device_create_file(&sony_pf_device->dev,
1354 &item->devattr);
1355 if (result)
1356 goto out_sysfs;
1357 }
1358 }
1359
1360 return 0;
1361
1362 out_sysfs:
1363 for (item = sony_nc_values; item->name; ++item) {
1364 device_remove_file(&sony_pf_device->dev, &item->devattr);
1365 }
1366 sony_pf_remove();
1367
1368 outbacklight:
1369 if (sony_backlight_device)
1370 backlight_device_unregister(sony_backlight_device);
1371
1372 sony_laptop_remove_input();
1373
1374 outwalk:
1375 sony_nc_rfkill_cleanup();
1376 return result;
1377 }
1378
1379 static int sony_nc_remove(struct acpi_device *device, int type)
1380 {
1381 struct sony_nc_value *item;
1382
1383 if (sony_backlight_device)
1384 backlight_device_unregister(sony_backlight_device);
1385
1386 sony_nc_acpi_device = NULL;
1387
1388 for (item = sony_nc_values; item->name; ++item) {
1389 device_remove_file(&sony_pf_device->dev, &item->devattr);
1390 }
1391
1392 sony_pf_remove();
1393 sony_laptop_remove_input();
1394 sony_nc_rfkill_cleanup();
1395 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1396
1397 return 0;
1398 }
1399
1400 static const struct acpi_device_id sony_device_ids[] = {
1401 {SONY_NC_HID, 0},
1402 {SONY_PIC_HID, 0},
1403 {"", 0},
1404 };
1405 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1406
1407 static const struct acpi_device_id sony_nc_device_ids[] = {
1408 {SONY_NC_HID, 0},
1409 {"", 0},
1410 };
1411
1412 static struct acpi_driver sony_nc_driver = {
1413 .name = SONY_NC_DRIVER_NAME,
1414 .class = SONY_NC_CLASS,
1415 .ids = sony_nc_device_ids,
1416 .owner = THIS_MODULE,
1417 .ops = {
1418 .add = sony_nc_add,
1419 .remove = sony_nc_remove,
1420 .resume = sony_nc_resume,
1421 .notify = sony_nc_notify,
1422 },
1423 };
1424
1425 /*********** SPIC (SNY6001) Device ***********/
1426
1427 #define SONYPI_DEVICE_TYPE1 0x00000001
1428 #define SONYPI_DEVICE_TYPE2 0x00000002
1429 #define SONYPI_DEVICE_TYPE3 0x00000004
1430 #define SONYPI_DEVICE_TYPE4 0x00000008
1431
1432 #define SONYPI_TYPE1_OFFSET 0x04
1433 #define SONYPI_TYPE2_OFFSET 0x12
1434 #define SONYPI_TYPE3_OFFSET 0x12
1435
1436 struct sony_pic_ioport {
1437 struct acpi_resource_io io1;
1438 struct acpi_resource_io io2;
1439 struct list_head list;
1440 };
1441
1442 struct sony_pic_irq {
1443 struct acpi_resource_irq irq;
1444 struct list_head list;
1445 };
1446
1447 struct sonypi_eventtypes {
1448 u8 data;
1449 unsigned long mask;
1450 struct sonypi_event *events;
1451 };
1452
1453 struct sony_pic_dev {
1454 struct acpi_device *acpi_dev;
1455 struct sony_pic_irq *cur_irq;
1456 struct sony_pic_ioport *cur_ioport;
1457 struct list_head interrupts;
1458 struct list_head ioports;
1459 struct mutex lock;
1460 struct sonypi_eventtypes *event_types;
1461 int (*handle_irq)(const u8, const u8);
1462 int model;
1463 u16 evport_offset;
1464 u8 camera_power;
1465 u8 bluetooth_power;
1466 u8 wwan_power;
1467 };
1468
1469 static struct sony_pic_dev spic_dev = {
1470 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
1471 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
1472 };
1473
1474 static int spic_drv_registered;
1475
1476 /* Event masks */
1477 #define SONYPI_JOGGER_MASK 0x00000001
1478 #define SONYPI_CAPTURE_MASK 0x00000002
1479 #define SONYPI_FNKEY_MASK 0x00000004
1480 #define SONYPI_BLUETOOTH_MASK 0x00000008
1481 #define SONYPI_PKEY_MASK 0x00000010
1482 #define SONYPI_BACK_MASK 0x00000020
1483 #define SONYPI_HELP_MASK 0x00000040
1484 #define SONYPI_LID_MASK 0x00000080
1485 #define SONYPI_ZOOM_MASK 0x00000100
1486 #define SONYPI_THUMBPHRASE_MASK 0x00000200
1487 #define SONYPI_MEYE_MASK 0x00000400
1488 #define SONYPI_MEMORYSTICK_MASK 0x00000800
1489 #define SONYPI_BATTERY_MASK 0x00001000
1490 #define SONYPI_WIRELESS_MASK 0x00002000
1491
1492 struct sonypi_event {
1493 u8 data;
1494 u8 event;
1495 };
1496
1497 /* The set of possible button release events */
1498 static struct sonypi_event sonypi_releaseev[] = {
1499 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1500 { 0, 0 }
1501 };
1502
1503 /* The set of possible jogger events */
1504 static struct sonypi_event sonypi_joggerev[] = {
1505 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1506 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1507 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1508 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1509 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1510 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1511 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1512 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1513 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1514 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1515 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1516 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1517 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1518 { 0, 0 }
1519 };
1520
1521 /* The set of possible capture button events */
1522 static struct sonypi_event sonypi_captureev[] = {
1523 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1524 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1525 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1526 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1527 { 0, 0 }
1528 };
1529
1530 /* The set of possible fnkeys events */
1531 static struct sonypi_event sonypi_fnkeyev[] = {
1532 { 0x10, SONYPI_EVENT_FNKEY_ESC },
1533 { 0x11, SONYPI_EVENT_FNKEY_F1 },
1534 { 0x12, SONYPI_EVENT_FNKEY_F2 },
1535 { 0x13, SONYPI_EVENT_FNKEY_F3 },
1536 { 0x14, SONYPI_EVENT_FNKEY_F4 },
1537 { 0x15, SONYPI_EVENT_FNKEY_F5 },
1538 { 0x16, SONYPI_EVENT_FNKEY_F6 },
1539 { 0x17, SONYPI_EVENT_FNKEY_F7 },
1540 { 0x18, SONYPI_EVENT_FNKEY_F8 },
1541 { 0x19, SONYPI_EVENT_FNKEY_F9 },
1542 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1543 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1544 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1545 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1546 { 0x21, SONYPI_EVENT_FNKEY_1 },
1547 { 0x22, SONYPI_EVENT_FNKEY_2 },
1548 { 0x31, SONYPI_EVENT_FNKEY_D },
1549 { 0x32, SONYPI_EVENT_FNKEY_E },
1550 { 0x33, SONYPI_EVENT_FNKEY_F },
1551 { 0x34, SONYPI_EVENT_FNKEY_S },
1552 { 0x35, SONYPI_EVENT_FNKEY_B },
1553 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1554 { 0, 0 }
1555 };
1556
1557 /* The set of possible program key events */
1558 static struct sonypi_event sonypi_pkeyev[] = {
1559 { 0x01, SONYPI_EVENT_PKEY_P1 },
1560 { 0x02, SONYPI_EVENT_PKEY_P2 },
1561 { 0x04, SONYPI_EVENT_PKEY_P3 },
1562 { 0x20, SONYPI_EVENT_PKEY_P1 },
1563 { 0, 0 }
1564 };
1565
1566 /* The set of possible bluetooth events */
1567 static struct sonypi_event sonypi_blueev[] = {
1568 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1569 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1570 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1571 { 0, 0 }
1572 };
1573
1574 /* The set of possible wireless events */
1575 static struct sonypi_event sonypi_wlessev[] = {
1576 { 0x59, SONYPI_EVENT_WIRELESS_ON },
1577 { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1578 { 0, 0 }
1579 };
1580
1581 /* The set of possible back button events */
1582 static struct sonypi_event sonypi_backev[] = {
1583 { 0x20, SONYPI_EVENT_BACK_PRESSED },
1584 { 0, 0 }
1585 };
1586
1587 /* The set of possible help button events */
1588 static struct sonypi_event sonypi_helpev[] = {
1589 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1590 { 0, 0 }
1591 };
1592
1593
1594 /* The set of possible lid events */
1595 static struct sonypi_event sonypi_lidev[] = {
1596 { 0x51, SONYPI_EVENT_LID_CLOSED },
1597 { 0x50, SONYPI_EVENT_LID_OPENED },
1598 { 0, 0 }
1599 };
1600
1601 /* The set of possible zoom events */
1602 static struct sonypi_event sonypi_zoomev[] = {
1603 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1604 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1605 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1606 { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1607 { 0, 0 }
1608 };
1609
1610 /* The set of possible thumbphrase events */
1611 static struct sonypi_event sonypi_thumbphraseev[] = {
1612 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1613 { 0, 0 }
1614 };
1615
1616 /* The set of possible motioneye camera events */
1617 static struct sonypi_event sonypi_meyeev[] = {
1618 { 0x00, SONYPI_EVENT_MEYE_FACE },
1619 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1620 { 0, 0 }
1621 };
1622
1623 /* The set of possible memorystick events */
1624 static struct sonypi_event sonypi_memorystickev[] = {
1625 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1626 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1627 { 0, 0 }
1628 };
1629
1630 /* The set of possible battery events */
1631 static struct sonypi_event sonypi_batteryev[] = {
1632 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1633 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1634 { 0, 0 }
1635 };
1636
1637 /* The set of possible volume events */
1638 static struct sonypi_event sonypi_volumeev[] = {
1639 { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1640 { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1641 { 0, 0 }
1642 };
1643
1644 /* The set of possible brightness events */
1645 static struct sonypi_event sonypi_brightnessev[] = {
1646 { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1647 { 0, 0 }
1648 };
1649
1650 static struct sonypi_eventtypes type1_events[] = {
1651 { 0, 0xffffffff, sonypi_releaseev },
1652 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1653 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1654 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1655 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1656 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1657 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1658 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1659 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1660 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1661 { 0 },
1662 };
1663 static struct sonypi_eventtypes type2_events[] = {
1664 { 0, 0xffffffff, sonypi_releaseev },
1665 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1666 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1667 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1668 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1669 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1670 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1671 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1672 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1673 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1674 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1675 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1676 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1677 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1678 { 0 },
1679 };
1680 static struct sonypi_eventtypes type3_events[] = {
1681 { 0, 0xffffffff, sonypi_releaseev },
1682 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1683 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1684 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1685 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1686 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1687 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1688 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1689 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1690 { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1691 { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1692 { 0 },
1693 };
1694
1695 /* low level spic calls */
1696 #define ITERATIONS_LONG 10000
1697 #define ITERATIONS_SHORT 10
1698 #define wait_on_command(command, iterations) { \
1699 unsigned int n = iterations; \
1700 while (--n && (command)) \
1701 udelay(1); \
1702 if (!n) \
1703 dprintk("command failed at %s : %s (line %d)\n", \
1704 __FILE__, __func__, __LINE__); \
1705 }
1706
1707 static u8 sony_pic_call1(u8 dev)
1708 {
1709 u8 v1, v2;
1710
1711 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1712 ITERATIONS_LONG);
1713 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1714 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1715 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1716 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1717 return v2;
1718 }
1719
1720 static u8 sony_pic_call2(u8 dev, u8 fn)
1721 {
1722 u8 v1;
1723
1724 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1725 ITERATIONS_LONG);
1726 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1727 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1728 ITERATIONS_LONG);
1729 outb(fn, spic_dev.cur_ioport->io1.minimum);
1730 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1731 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1732 return v1;
1733 }
1734
1735 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1736 {
1737 u8 v1;
1738
1739 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1740 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1741 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1742 outb(fn, spic_dev.cur_ioport->io1.minimum);
1743 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1744 outb(v, spic_dev.cur_ioport->io1.minimum);
1745 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1746 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1747 dev, fn, v, v1);
1748 return v1;
1749 }
1750
1751 /*
1752 * minidrivers for SPIC models
1753 */
1754 static int type3_handle_irq(const u8 data_mask, const u8 ev)
1755 {
1756 /*
1757 * 0x31 could mean we have to take some extra action and wait for
1758 * the next irq for some Type3 models, it will generate a new
1759 * irq and we can read new data from the device:
1760 * - 0x5c and 0x5f requires 0xA0
1761 * - 0x61 requires 0xB3
1762 */
1763 if (data_mask == 0x31) {
1764 if (ev == 0x5c || ev == 0x5f)
1765 sony_pic_call1(0xA0);
1766 else if (ev == 0x61)
1767 sony_pic_call1(0xB3);
1768 return 0;
1769 }
1770 return 1;
1771 }
1772
1773 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1774 {
1775 struct pci_dev *pcidev;
1776
1777 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1778 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1779 if (pcidev) {
1780 dev->model = SONYPI_DEVICE_TYPE1;
1781 dev->evport_offset = SONYPI_TYPE1_OFFSET;
1782 dev->event_types = type1_events;
1783 goto out;
1784 }
1785
1786 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1787 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1788 if (pcidev) {
1789 dev->model = SONYPI_DEVICE_TYPE2;
1790 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1791 dev->event_types = type2_events;
1792 goto out;
1793 }
1794
1795 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1796 PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1797 if (pcidev) {
1798 dev->model = SONYPI_DEVICE_TYPE3;
1799 dev->handle_irq = type3_handle_irq;
1800 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1801 dev->event_types = type3_events;
1802 goto out;
1803 }
1804
1805 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1806 PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1807 if (pcidev) {
1808 dev->model = SONYPI_DEVICE_TYPE3;
1809 dev->handle_irq = type3_handle_irq;
1810 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1811 dev->event_types = type3_events;
1812 goto out;
1813 }
1814
1815 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1816 PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1817 if (pcidev) {
1818 dev->model = SONYPI_DEVICE_TYPE3;
1819 dev->handle_irq = type3_handle_irq;
1820 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1821 dev->event_types = type3_events;
1822 goto out;
1823 }
1824
1825 /* default */
1826 dev->model = SONYPI_DEVICE_TYPE2;
1827 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1828 dev->event_types = type2_events;
1829
1830 out:
1831 if (pcidev)
1832 pci_dev_put(pcidev);
1833
1834 printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1835 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
1836 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1837 }
1838
1839 /* camera tests and poweron/poweroff */
1840 #define SONYPI_CAMERA_PICTURE 5
1841 #define SONYPI_CAMERA_CONTROL 0x10
1842
1843 #define SONYPI_CAMERA_BRIGHTNESS 0
1844 #define SONYPI_CAMERA_CONTRAST 1
1845 #define SONYPI_CAMERA_HUE 2
1846 #define SONYPI_CAMERA_COLOR 3
1847 #define SONYPI_CAMERA_SHARPNESS 4
1848
1849 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
1850 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
1851 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
1852 #define SONYPI_CAMERA_MUTE_MASK 0x40
1853
1854 /* the rest don't need a loop until not 0xff */
1855 #define SONYPI_CAMERA_AGC 6
1856 #define SONYPI_CAMERA_AGC_MASK 0x30
1857 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
1858
1859 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
1860 #define SONYPI_CAMERA_CONTROL 0x10
1861
1862 #define SONYPI_CAMERA_STATUS 7
1863 #define SONYPI_CAMERA_STATUS_READY 0x2
1864 #define SONYPI_CAMERA_STATUS_POSITION 0x4
1865
1866 #define SONYPI_DIRECTION_BACKWARDS 0x4
1867
1868 #define SONYPI_CAMERA_REVISION 8
1869 #define SONYPI_CAMERA_ROMVERSION 9
1870
1871 static int __sony_pic_camera_ready(void)
1872 {
1873 u8 v;
1874
1875 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1876 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1877 }
1878
1879 static int __sony_pic_camera_off(void)
1880 {
1881 if (!camera) {
1882 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1883 return -ENODEV;
1884 }
1885
1886 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1887 SONYPI_CAMERA_MUTE_MASK),
1888 ITERATIONS_SHORT);
1889
1890 if (spic_dev.camera_power) {
1891 sony_pic_call2(0x91, 0);
1892 spic_dev.camera_power = 0;
1893 }
1894 return 0;
1895 }
1896
1897 static int __sony_pic_camera_on(void)
1898 {
1899 int i, j, x;
1900
1901 if (!camera) {
1902 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1903 return -ENODEV;
1904 }
1905
1906 if (spic_dev.camera_power)
1907 return 0;
1908
1909 for (j = 5; j > 0; j--) {
1910
1911 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1912 msleep(10);
1913 sony_pic_call1(0x93);
1914
1915 for (i = 400; i > 0; i--) {
1916 if (__sony_pic_camera_ready())
1917 break;
1918 msleep(10);
1919 }
1920 if (i)
1921 break;
1922 }
1923
1924 if (j == 0) {
1925 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1926 return -ENODEV;
1927 }
1928
1929 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1930 0x5a),
1931 ITERATIONS_SHORT);
1932
1933 spic_dev.camera_power = 1;
1934 return 0;
1935 }
1936
1937 /* External camera command (exported to the motion eye v4l driver) */
1938 int sony_pic_camera_command(int command, u8 value)
1939 {
1940 if (!camera)
1941 return -EIO;
1942
1943 mutex_lock(&spic_dev.lock);
1944
1945 switch (command) {
1946 case SONY_PIC_COMMAND_SETCAMERA:
1947 if (value)
1948 __sony_pic_camera_on();
1949 else
1950 __sony_pic_camera_off();
1951 break;
1952 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1953 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1954 ITERATIONS_SHORT);
1955 break;
1956 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1957 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1958 ITERATIONS_SHORT);
1959 break;
1960 case SONY_PIC_COMMAND_SETCAMERAHUE:
1961 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1962 ITERATIONS_SHORT);
1963 break;
1964 case SONY_PIC_COMMAND_SETCAMERACOLOR:
1965 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1966 ITERATIONS_SHORT);
1967 break;
1968 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1969 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1970 ITERATIONS_SHORT);
1971 break;
1972 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1973 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1974 ITERATIONS_SHORT);
1975 break;
1976 case SONY_PIC_COMMAND_SETCAMERAAGC:
1977 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1978 ITERATIONS_SHORT);
1979 break;
1980 default:
1981 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1982 command);
1983 break;
1984 }
1985 mutex_unlock(&spic_dev.lock);
1986 return 0;
1987 }
1988 EXPORT_SYMBOL(sony_pic_camera_command);
1989
1990 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1991 static void __sony_pic_set_wwanpower(u8 state)
1992 {
1993 state = !!state;
1994 if (spic_dev.wwan_power == state)
1995 return;
1996 sony_pic_call2(0xB0, state);
1997 sony_pic_call1(0x82);
1998 spic_dev.wwan_power = state;
1999 }
2000
2001 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2002 struct device_attribute *attr,
2003 const char *buffer, size_t count)
2004 {
2005 unsigned long value;
2006 if (count > 31)
2007 return -EINVAL;
2008
2009 value = simple_strtoul(buffer, NULL, 10);
2010 mutex_lock(&spic_dev.lock);
2011 __sony_pic_set_wwanpower(value);
2012 mutex_unlock(&spic_dev.lock);
2013
2014 return count;
2015 }
2016
2017 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2018 struct device_attribute *attr, char *buffer)
2019 {
2020 ssize_t count;
2021 mutex_lock(&spic_dev.lock);
2022 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2023 mutex_unlock(&spic_dev.lock);
2024 return count;
2025 }
2026
2027 /* bluetooth subsystem power state */
2028 static void __sony_pic_set_bluetoothpower(u8 state)
2029 {
2030 state = !!state;
2031 if (spic_dev.bluetooth_power == state)
2032 return;
2033 sony_pic_call2(0x96, state);
2034 sony_pic_call1(0x82);
2035 spic_dev.bluetooth_power = state;
2036 }
2037
2038 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2039 struct device_attribute *attr,
2040 const char *buffer, size_t count)
2041 {
2042 unsigned long value;
2043 if (count > 31)
2044 return -EINVAL;
2045
2046 value = simple_strtoul(buffer, NULL, 10);
2047 mutex_lock(&spic_dev.lock);
2048 __sony_pic_set_bluetoothpower(value);
2049 mutex_unlock(&spic_dev.lock);
2050
2051 return count;
2052 }
2053
2054 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2055 struct device_attribute *attr, char *buffer)
2056 {
2057 ssize_t count = 0;
2058 mutex_lock(&spic_dev.lock);
2059 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2060 mutex_unlock(&spic_dev.lock);
2061 return count;
2062 }
2063
2064 /* fan speed */
2065 /* FAN0 information (reverse engineered from ACPI tables) */
2066 #define SONY_PIC_FAN0_STATUS 0x93
2067 static int sony_pic_set_fanspeed(unsigned long value)
2068 {
2069 return ec_write(SONY_PIC_FAN0_STATUS, value);
2070 }
2071
2072 static int sony_pic_get_fanspeed(u8 *value)
2073 {
2074 return ec_read(SONY_PIC_FAN0_STATUS, value);
2075 }
2076
2077 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2078 struct device_attribute *attr,
2079 const char *buffer, size_t count)
2080 {
2081 unsigned long value;
2082 if (count > 31)
2083 return -EINVAL;
2084
2085 value = simple_strtoul(buffer, NULL, 10);
2086 if (sony_pic_set_fanspeed(value))
2087 return -EIO;
2088
2089 return count;
2090 }
2091
2092 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2093 struct device_attribute *attr, char *buffer)
2094 {
2095 u8 value = 0;
2096 if (sony_pic_get_fanspeed(&value))
2097 return -EIO;
2098
2099 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2100 }
2101
2102 #define SPIC_ATTR(_name, _mode) \
2103 struct device_attribute spic_attr_##_name = __ATTR(_name, \
2104 _mode, sony_pic_## _name ##_show, \
2105 sony_pic_## _name ##_store)
2106
2107 static SPIC_ATTR(bluetoothpower, 0644);
2108 static SPIC_ATTR(wwanpower, 0644);
2109 static SPIC_ATTR(fanspeed, 0644);
2110
2111 static struct attribute *spic_attributes[] = {
2112 &spic_attr_bluetoothpower.attr,
2113 &spic_attr_wwanpower.attr,
2114 &spic_attr_fanspeed.attr,
2115 NULL
2116 };
2117
2118 static struct attribute_group spic_attribute_group = {
2119 .attrs = spic_attributes
2120 };
2121
2122 /******** SONYPI compatibility **********/
2123 #ifdef CONFIG_SONYPI_COMPAT
2124
2125 /* battery / brightness / temperature addresses */
2126 #define SONYPI_BAT_FLAGS 0x81
2127 #define SONYPI_LCD_LIGHT 0x96
2128 #define SONYPI_BAT1_PCTRM 0xa0
2129 #define SONYPI_BAT1_LEFT 0xa2
2130 #define SONYPI_BAT1_MAXRT 0xa4
2131 #define SONYPI_BAT2_PCTRM 0xa8
2132 #define SONYPI_BAT2_LEFT 0xaa
2133 #define SONYPI_BAT2_MAXRT 0xac
2134 #define SONYPI_BAT1_MAXTK 0xb0
2135 #define SONYPI_BAT1_FULL 0xb2
2136 #define SONYPI_BAT2_MAXTK 0xb8
2137 #define SONYPI_BAT2_FULL 0xba
2138 #define SONYPI_TEMP_STATUS 0xC1
2139
2140 struct sonypi_compat_s {
2141 struct fasync_struct *fifo_async;
2142 struct kfifo fifo;
2143 spinlock_t fifo_lock;
2144 wait_queue_head_t fifo_proc_list;
2145 atomic_t open_count;
2146 };
2147 static struct sonypi_compat_s sonypi_compat = {
2148 .open_count = ATOMIC_INIT(0),
2149 };
2150
2151 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2152 {
2153 return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2154 }
2155
2156 static int sonypi_misc_release(struct inode *inode, struct file *file)
2157 {
2158 atomic_dec(&sonypi_compat.open_count);
2159 return 0;
2160 }
2161
2162 static int sonypi_misc_open(struct inode *inode, struct file *file)
2163 {
2164 /* Flush input queue on first open */
2165 unsigned long flags;
2166
2167 spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2168
2169 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2170 kfifo_reset(&sonypi_compat.fifo);
2171
2172 spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2173
2174 return 0;
2175 }
2176
2177 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2178 size_t count, loff_t *pos)
2179 {
2180 ssize_t ret;
2181 unsigned char c;
2182
2183 if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2184 (file->f_flags & O_NONBLOCK))
2185 return -EAGAIN;
2186
2187 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2188 kfifo_len(&sonypi_compat.fifo) != 0);
2189 if (ret)
2190 return ret;
2191
2192 while (ret < count &&
2193 (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2194 &sonypi_compat.fifo_lock) == sizeof(c))) {
2195 if (put_user(c, buf++))
2196 return -EFAULT;
2197 ret++;
2198 }
2199
2200 if (ret > 0) {
2201 struct inode *inode = file->f_path.dentry->d_inode;
2202 inode->i_atime = current_fs_time(inode->i_sb);
2203 }
2204
2205 return ret;
2206 }
2207
2208 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2209 {
2210 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2211 if (kfifo_len(&sonypi_compat.fifo))
2212 return POLLIN | POLLRDNORM;
2213 return 0;
2214 }
2215
2216 static int ec_read16(u8 addr, u16 *value)
2217 {
2218 u8 val_lb, val_hb;
2219 if (ec_read(addr, &val_lb))
2220 return -1;
2221 if (ec_read(addr + 1, &val_hb))
2222 return -1;
2223 *value = val_lb | (val_hb << 8);
2224 return 0;
2225 }
2226
2227 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2228 unsigned long arg)
2229 {
2230 int ret = 0;
2231 void __user *argp = (void __user *)arg;
2232 u8 val8;
2233 u16 val16;
2234 int value;
2235
2236 mutex_lock(&spic_dev.lock);
2237 switch (cmd) {
2238 case SONYPI_IOCGBRT:
2239 if (sony_backlight_device == NULL) {
2240 ret = -EIO;
2241 break;
2242 }
2243 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2244 ret = -EIO;
2245 break;
2246 }
2247 val8 = ((value & 0xff) - 1) << 5;
2248 if (copy_to_user(argp, &val8, sizeof(val8)))
2249 ret = -EFAULT;
2250 break;
2251 case SONYPI_IOCSBRT:
2252 if (sony_backlight_device == NULL) {
2253 ret = -EIO;
2254 break;
2255 }
2256 if (copy_from_user(&val8, argp, sizeof(val8))) {
2257 ret = -EFAULT;
2258 break;
2259 }
2260 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2261 (val8 >> 5) + 1, NULL)) {
2262 ret = -EIO;
2263 break;
2264 }
2265 /* sync the backlight device status */
2266 sony_backlight_device->props.brightness =
2267 sony_backlight_get_brightness(sony_backlight_device);
2268 break;
2269 case SONYPI_IOCGBAT1CAP:
2270 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2271 ret = -EIO;
2272 break;
2273 }
2274 if (copy_to_user(argp, &val16, sizeof(val16)))
2275 ret = -EFAULT;
2276 break;
2277 case SONYPI_IOCGBAT1REM:
2278 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2279 ret = -EIO;
2280 break;
2281 }
2282 if (copy_to_user(argp, &val16, sizeof(val16)))
2283 ret = -EFAULT;
2284 break;
2285 case SONYPI_IOCGBAT2CAP:
2286 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2287 ret = -EIO;
2288 break;
2289 }
2290 if (copy_to_user(argp, &val16, sizeof(val16)))
2291 ret = -EFAULT;
2292 break;
2293 case SONYPI_IOCGBAT2REM:
2294 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2295 ret = -EIO;
2296 break;
2297 }
2298 if (copy_to_user(argp, &val16, sizeof(val16)))
2299 ret = -EFAULT;
2300 break;
2301 case SONYPI_IOCGBATFLAGS:
2302 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2303 ret = -EIO;
2304 break;
2305 }
2306 val8 &= 0x07;
2307 if (copy_to_user(argp, &val8, sizeof(val8)))
2308 ret = -EFAULT;
2309 break;
2310 case SONYPI_IOCGBLUE:
2311 val8 = spic_dev.bluetooth_power;
2312 if (copy_to_user(argp, &val8, sizeof(val8)))
2313 ret = -EFAULT;
2314 break;
2315 case SONYPI_IOCSBLUE:
2316 if (copy_from_user(&val8, argp, sizeof(val8))) {
2317 ret = -EFAULT;
2318 break;
2319 }
2320 __sony_pic_set_bluetoothpower(val8);
2321 break;
2322 /* FAN Controls */
2323 case SONYPI_IOCGFAN:
2324 if (sony_pic_get_fanspeed(&val8)) {
2325 ret = -EIO;
2326 break;
2327 }
2328 if (copy_to_user(argp, &val8, sizeof(val8)))
2329 ret = -EFAULT;
2330 break;
2331 case SONYPI_IOCSFAN:
2332 if (copy_from_user(&val8, argp, sizeof(val8))) {
2333 ret = -EFAULT;
2334 break;
2335 }
2336 if (sony_pic_set_fanspeed(val8))
2337 ret = -EIO;
2338 break;
2339 /* GET Temperature (useful under APM) */
2340 case SONYPI_IOCGTEMP:
2341 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2342 ret = -EIO;
2343 break;
2344 }
2345 if (copy_to_user(argp, &val8, sizeof(val8)))
2346 ret = -EFAULT;
2347 break;
2348 default:
2349 ret = -EINVAL;
2350 }
2351 mutex_unlock(&spic_dev.lock);
2352 return ret;
2353 }
2354
2355 static const struct file_operations sonypi_misc_fops = {
2356 .owner = THIS_MODULE,
2357 .read = sonypi_misc_read,
2358 .poll = sonypi_misc_poll,
2359 .open = sonypi_misc_open,
2360 .release = sonypi_misc_release,
2361 .fasync = sonypi_misc_fasync,
2362 .unlocked_ioctl = sonypi_misc_ioctl,
2363 .llseek = noop_llseek,
2364 };
2365
2366 static struct miscdevice sonypi_misc_device = {
2367 .minor = MISC_DYNAMIC_MINOR,
2368 .name = "sonypi",
2369 .fops = &sonypi_misc_fops,
2370 };
2371
2372 static void sonypi_compat_report_event(u8 event)
2373 {
2374 kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2375 sizeof(event), &sonypi_compat.fifo_lock);
2376 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2377 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2378 }
2379
2380 static int sonypi_compat_init(void)
2381 {
2382 int error;
2383
2384 spin_lock_init(&sonypi_compat.fifo_lock);
2385 error =
2386 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2387 if (error) {
2388 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2389 return error;
2390 }
2391
2392 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2393
2394 if (minor != -1)
2395 sonypi_misc_device.minor = minor;
2396 error = misc_register(&sonypi_misc_device);
2397 if (error) {
2398 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2399 goto err_free_kfifo;
2400 }
2401 if (minor == -1)
2402 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2403 sonypi_misc_device.minor);
2404
2405 return 0;
2406
2407 err_free_kfifo:
2408 kfifo_free(&sonypi_compat.fifo);
2409 return error;
2410 }
2411
2412 static void sonypi_compat_exit(void)
2413 {
2414 misc_deregister(&sonypi_misc_device);
2415 kfifo_free(&sonypi_compat.fifo);
2416 }
2417 #else
2418 static int sonypi_compat_init(void) { return 0; }
2419 static void sonypi_compat_exit(void) { }
2420 static void sonypi_compat_report_event(u8 event) { }
2421 #endif /* CONFIG_SONYPI_COMPAT */
2422
2423 /*
2424 * ACPI callbacks
2425 */
2426 static acpi_status
2427 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2428 {
2429 u32 i;
2430 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2431
2432 switch (resource->type) {
2433 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2434 {
2435 /* start IO enumeration */
2436 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2437 if (!ioport)
2438 return AE_ERROR;
2439
2440 list_add(&ioport->list, &dev->ioports);
2441 return AE_OK;
2442 }
2443
2444 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2445 /* end IO enumeration */
2446 return AE_OK;
2447
2448 case ACPI_RESOURCE_TYPE_IRQ:
2449 {
2450 struct acpi_resource_irq *p = &resource->data.irq;
2451 struct sony_pic_irq *interrupt = NULL;
2452 if (!p || !p->interrupt_count) {
2453 /*
2454 * IRQ descriptors may have no IRQ# bits set,
2455 * particularly those those w/ _STA disabled
2456 */
2457 dprintk("Blank IRQ resource\n");
2458 return AE_OK;
2459 }
2460 for (i = 0; i < p->interrupt_count; i++) {
2461 if (!p->interrupts[i]) {
2462 printk(KERN_WARNING DRV_PFX
2463 "Invalid IRQ %d\n",
2464 p->interrupts[i]);
2465 continue;
2466 }
2467 interrupt = kzalloc(sizeof(*interrupt),
2468 GFP_KERNEL);
2469 if (!interrupt)
2470 return AE_ERROR;
2471
2472 list_add(&interrupt->list, &dev->interrupts);
2473 interrupt->irq.triggering = p->triggering;
2474 interrupt->irq.polarity = p->polarity;
2475 interrupt->irq.sharable = p->sharable;
2476 interrupt->irq.interrupt_count = 1;
2477 interrupt->irq.interrupts[0] = p->interrupts[i];
2478 }
2479 return AE_OK;
2480 }
2481 case ACPI_RESOURCE_TYPE_IO:
2482 {
2483 struct acpi_resource_io *io = &resource->data.io;
2484 struct sony_pic_ioport *ioport =
2485 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2486 if (!io) {
2487 dprintk("Blank IO resource\n");
2488 return AE_OK;
2489 }
2490
2491 if (!ioport->io1.minimum) {
2492 memcpy(&ioport->io1, io, sizeof(*io));
2493 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2494 ioport->io1.address_length);
2495 }
2496 else if (!ioport->io2.minimum) {
2497 memcpy(&ioport->io2, io, sizeof(*io));
2498 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2499 ioport->io2.address_length);
2500 }
2501 else {
2502 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2503 return AE_ERROR;
2504 }
2505 return AE_OK;
2506 }
2507 default:
2508 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2509 resource->type);
2510
2511 case ACPI_RESOURCE_TYPE_END_TAG:
2512 return AE_OK;
2513 }
2514 return AE_CTRL_TERMINATE;
2515 }
2516
2517 static int sony_pic_possible_resources(struct acpi_device *device)
2518 {
2519 int result = 0;
2520 acpi_status status = AE_OK;
2521
2522 if (!device)
2523 return -EINVAL;
2524
2525 /* get device status */
2526 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2527 dprintk("Evaluating _STA\n");
2528 result = acpi_bus_get_status(device);
2529 if (result) {
2530 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2531 goto end;
2532 }
2533
2534 if (!device->status.enabled)
2535 dprintk("Device disabled\n");
2536 else
2537 dprintk("Device enabled\n");
2538
2539 /*
2540 * Query and parse 'method'
2541 */
2542 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2543 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2544 sony_pic_read_possible_resource, &spic_dev);
2545 if (ACPI_FAILURE(status)) {
2546 printk(KERN_WARNING DRV_PFX
2547 "Failure evaluating %s\n",
2548 METHOD_NAME__PRS);
2549 result = -ENODEV;
2550 }
2551 end:
2552 return result;
2553 }
2554
2555 /*
2556 * Disable the spic device by calling its _DIS method
2557 */
2558 static int sony_pic_disable(struct acpi_device *device)
2559 {
2560 acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2561 NULL);
2562
2563 if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2564 return -ENXIO;
2565
2566 dprintk("Device disabled\n");
2567 return 0;
2568 }
2569
2570
2571 /*
2572 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2573 *
2574 * Call _SRS to set current resources
2575 */
2576 static int sony_pic_enable(struct acpi_device *device,
2577 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2578 {
2579 acpi_status status;
2580 int result = 0;
2581 /* Type 1 resource layout is:
2582 * IO
2583 * IO
2584 * IRQNoFlags
2585 * End
2586 *
2587 * Type 2 and 3 resource layout is:
2588 * IO
2589 * IRQNoFlags
2590 * End
2591 */
2592 struct {
2593 struct acpi_resource res1;
2594 struct acpi_resource res2;
2595 struct acpi_resource res3;
2596 struct acpi_resource res4;
2597 } *resource;
2598 struct acpi_buffer buffer = { 0, NULL };
2599
2600 if (!ioport || !irq)
2601 return -EINVAL;
2602
2603 /* init acpi_buffer */
2604 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2605 if (!resource)
2606 return -ENOMEM;
2607
2608 buffer.length = sizeof(*resource) + 1;
2609 buffer.pointer = resource;
2610
2611 /* setup Type 1 resources */
2612 if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2613
2614 /* setup io resources */
2615 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2616 resource->res1.length = sizeof(struct acpi_resource);
2617 memcpy(&resource->res1.data.io, &ioport->io1,
2618 sizeof(struct acpi_resource_io));
2619
2620 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2621 resource->res2.length = sizeof(struct acpi_resource);
2622 memcpy(&resource->res2.data.io, &ioport->io2,
2623 sizeof(struct acpi_resource_io));
2624
2625 /* setup irq resource */
2626 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2627 resource->res3.length = sizeof(struct acpi_resource);
2628 memcpy(&resource->res3.data.irq, &irq->irq,
2629 sizeof(struct acpi_resource_irq));
2630 /* we requested a shared irq */
2631 resource->res3.data.irq.sharable = ACPI_SHARED;
2632
2633 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2634
2635 }
2636 /* setup Type 2/3 resources */
2637 else {
2638 /* setup io resource */
2639 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2640 resource->res1.length = sizeof(struct acpi_resource);
2641 memcpy(&resource->res1.data.io, &ioport->io1,
2642 sizeof(struct acpi_resource_io));
2643
2644 /* setup irq resource */
2645 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2646 resource->res2.length = sizeof(struct acpi_resource);
2647 memcpy(&resource->res2.data.irq, &irq->irq,
2648 sizeof(struct acpi_resource_irq));
2649 /* we requested a shared irq */
2650 resource->res2.data.irq.sharable = ACPI_SHARED;
2651
2652 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2653 }
2654
2655 /* Attempt to set the resource */
2656 dprintk("Evaluating _SRS\n");
2657 status = acpi_set_current_resources(device->handle, &buffer);
2658
2659 /* check for total failure */
2660 if (ACPI_FAILURE(status)) {
2661 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2662 result = -ENODEV;
2663 goto end;
2664 }
2665
2666 /* Necessary device initializations calls (from sonypi) */
2667 sony_pic_call1(0x82);
2668 sony_pic_call2(0x81, 0xff);
2669 sony_pic_call1(compat ? 0x92 : 0x82);
2670
2671 end:
2672 kfree(resource);
2673 return result;
2674 }
2675
2676 /*****************
2677 *
2678 * ISR: some event is available
2679 *
2680 *****************/
2681 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2682 {
2683 int i, j;
2684 u8 ev = 0;
2685 u8 data_mask = 0;
2686 u8 device_event = 0;
2687
2688 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2689
2690 ev = inb_p(dev->cur_ioport->io1.minimum);
2691 if (dev->cur_ioport->io2.minimum)
2692 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2693 else
2694 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2695 dev->evport_offset);
2696
2697 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2698 ev, data_mask, dev->cur_ioport->io1.minimum,
2699 dev->evport_offset);
2700
2701 if (ev == 0x00 || ev == 0xff)
2702 return IRQ_HANDLED;
2703
2704 for (i = 0; dev->event_types[i].mask; i++) {
2705
2706 if ((data_mask & dev->event_types[i].data) !=
2707 dev->event_types[i].data)
2708 continue;
2709
2710 if (!(mask & dev->event_types[i].mask))
2711 continue;
2712
2713 for (j = 0; dev->event_types[i].events[j].event; j++) {
2714 if (ev == dev->event_types[i].events[j].data) {
2715 device_event =
2716 dev->event_types[i].events[j].event;
2717 goto found;
2718 }
2719 }
2720 }
2721 /* Still not able to decode the event try to pass
2722 * it over to the minidriver
2723 */
2724 if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
2725 return IRQ_HANDLED;
2726
2727 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2728 ev, data_mask, dev->cur_ioport->io1.minimum,
2729 dev->evport_offset);
2730 return IRQ_HANDLED;
2731
2732 found:
2733 sony_laptop_report_input_event(device_event);
2734 acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2735 sonypi_compat_report_event(device_event);
2736
2737 return IRQ_HANDLED;
2738 }
2739
2740 /*****************
2741 *
2742 * ACPI driver
2743 *
2744 *****************/
2745 static int sony_pic_remove(struct acpi_device *device, int type)
2746 {
2747 struct sony_pic_ioport *io, *tmp_io;
2748 struct sony_pic_irq *irq, *tmp_irq;
2749
2750 if (sony_pic_disable(device)) {
2751 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2752 return -ENXIO;
2753 }
2754
2755 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2756 release_region(spic_dev.cur_ioport->io1.minimum,
2757 spic_dev.cur_ioport->io1.address_length);
2758 if (spic_dev.cur_ioport->io2.minimum)
2759 release_region(spic_dev.cur_ioport->io2.minimum,
2760 spic_dev.cur_ioport->io2.address_length);
2761
2762 sonypi_compat_exit();
2763
2764 sony_laptop_remove_input();
2765
2766 /* pf attrs */
2767 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2768 sony_pf_remove();
2769
2770 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2771 list_del(&io->list);
2772 kfree(io);
2773 }
2774 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2775 list_del(&irq->list);
2776 kfree(irq);
2777 }
2778 spic_dev.cur_ioport = NULL;
2779 spic_dev.cur_irq = NULL;
2780
2781 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2782 return 0;
2783 }
2784
2785 static int sony_pic_add(struct acpi_device *device)
2786 {
2787 int result;
2788 struct sony_pic_ioport *io, *tmp_io;
2789 struct sony_pic_irq *irq, *tmp_irq;
2790
2791 printk(KERN_INFO DRV_PFX "%s v%s.\n",
2792 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2793
2794 spic_dev.acpi_dev = device;
2795 strcpy(acpi_device_class(device), "sony/hotkey");
2796 sony_pic_detect_device_type(&spic_dev);
2797 mutex_init(&spic_dev.lock);
2798
2799 /* read _PRS resources */
2800 result = sony_pic_possible_resources(device);
2801 if (result) {
2802 printk(KERN_ERR DRV_PFX
2803 "Unable to read possible resources.\n");
2804 goto err_free_resources;
2805 }
2806
2807 /* setup input devices and helper fifo */
2808 result = sony_laptop_setup_input(device);
2809 if (result) {
2810 printk(KERN_ERR DRV_PFX
2811 "Unable to create input devices.\n");
2812 goto err_free_resources;
2813 }
2814
2815 if (sonypi_compat_init())
2816 goto err_remove_input;
2817
2818 /* request io port */
2819 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2820 if (request_region(io->io1.minimum, io->io1.address_length,
2821 "Sony Programable I/O Device")) {
2822 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2823 io->io1.minimum, io->io1.maximum,
2824 io->io1.address_length);
2825 /* Type 1 have 2 ioports */
2826 if (io->io2.minimum) {
2827 if (request_region(io->io2.minimum,
2828 io->io2.address_length,
2829 "Sony Programable I/O Device")) {
2830 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2831 io->io2.minimum, io->io2.maximum,
2832 io->io2.address_length);
2833 spic_dev.cur_ioport = io;
2834 break;
2835 }
2836 else {
2837 dprintk("Unable to get I/O port2: "
2838 "0x%.4x (0x%.4x) + 0x%.2x\n",
2839 io->io2.minimum, io->io2.maximum,
2840 io->io2.address_length);
2841 release_region(io->io1.minimum,
2842 io->io1.address_length);
2843 }
2844 }
2845 else {
2846 spic_dev.cur_ioport = io;
2847 break;
2848 }
2849 }
2850 }
2851 if (!spic_dev.cur_ioport) {
2852 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2853 result = -ENODEV;
2854 goto err_remove_compat;
2855 }
2856
2857 /* request IRQ */
2858 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2859 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2860 IRQF_DISABLED, "sony-laptop", &spic_dev)) {
2861 dprintk("IRQ: %d - triggering: %d - "
2862 "polarity: %d - shr: %d\n",
2863 irq->irq.interrupts[0],
2864 irq->irq.triggering,
2865 irq->irq.polarity,
2866 irq->irq.sharable);
2867 spic_dev.cur_irq = irq;
2868 break;
2869 }
2870 }
2871 if (!spic_dev.cur_irq) {
2872 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2873 result = -ENODEV;
2874 goto err_release_region;
2875 }
2876
2877 /* set resource status _SRS */
2878 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2879 if (result) {
2880 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2881 goto err_free_irq;
2882 }
2883
2884 spic_dev.bluetooth_power = -1;
2885 /* create device attributes */
2886 result = sony_pf_add();
2887 if (result)
2888 goto err_disable_device;
2889
2890 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2891 if (result)
2892 goto err_remove_pf;
2893
2894 return 0;
2895
2896 err_remove_pf:
2897 sony_pf_remove();
2898
2899 err_disable_device:
2900 sony_pic_disable(device);
2901
2902 err_free_irq:
2903 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2904
2905 err_release_region:
2906 release_region(spic_dev.cur_ioport->io1.minimum,
2907 spic_dev.cur_ioport->io1.address_length);
2908 if (spic_dev.cur_ioport->io2.minimum)
2909 release_region(spic_dev.cur_ioport->io2.minimum,
2910 spic_dev.cur_ioport->io2.address_length);
2911
2912 err_remove_compat:
2913 sonypi_compat_exit();
2914
2915 err_remove_input:
2916 sony_laptop_remove_input();
2917
2918 err_free_resources:
2919 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2920 list_del(&io->list);
2921 kfree(io);
2922 }
2923 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2924 list_del(&irq->list);
2925 kfree(irq);
2926 }
2927 spic_dev.cur_ioport = NULL;
2928 spic_dev.cur_irq = NULL;
2929
2930 return result;
2931 }
2932
2933 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2934 {
2935 if (sony_pic_disable(device))
2936 return -ENXIO;
2937 return 0;
2938 }
2939
2940 static int sony_pic_resume(struct acpi_device *device)
2941 {
2942 sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2943 return 0;
2944 }
2945
2946 static const struct acpi_device_id sony_pic_device_ids[] = {
2947 {SONY_PIC_HID, 0},
2948 {"", 0},
2949 };
2950
2951 static struct acpi_driver sony_pic_driver = {
2952 .name = SONY_PIC_DRIVER_NAME,
2953 .class = SONY_PIC_CLASS,
2954 .ids = sony_pic_device_ids,
2955 .owner = THIS_MODULE,
2956 .ops = {
2957 .add = sony_pic_add,
2958 .remove = sony_pic_remove,
2959 .suspend = sony_pic_suspend,
2960 .resume = sony_pic_resume,
2961 },
2962 };
2963
2964 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2965 {
2966 .ident = "Sony Vaio",
2967 .matches = {
2968 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2969 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2970 },
2971 },
2972 {
2973 .ident = "Sony Vaio",
2974 .matches = {
2975 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2976 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2977 },
2978 },
2979 { }
2980 };
2981
2982 static int __init sony_laptop_init(void)
2983 {
2984 int result;
2985
2986 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2987 result = acpi_bus_register_driver(&sony_pic_driver);
2988 if (result) {
2989 printk(KERN_ERR DRV_PFX
2990 "Unable to register SPIC driver.");
2991 goto out;
2992 }
2993 spic_drv_registered = 1;
2994 }
2995
2996 result = acpi_bus_register_driver(&sony_nc_driver);
2997 if (result) {
2998 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2999 goto out_unregister_pic;
3000 }
3001
3002 return 0;
3003
3004 out_unregister_pic:
3005 if (spic_drv_registered)
3006 acpi_bus_unregister_driver(&sony_pic_driver);
3007 out:
3008 return result;
3009 }
3010
3011 static void __exit sony_laptop_exit(void)
3012 {
3013 acpi_bus_unregister_driver(&sony_nc_driver);
3014 if (spic_drv_registered)
3015 acpi_bus_unregister_driver(&sony_pic_driver);
3016 }
3017
3018 module_init(sony_laptop_init);
3019 module_exit(sony_laptop_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree