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Merge branch 'akpm'
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / platform / x86 / sony-laptop.c
blob5e83370b0812975c780630ca0782ef0cfbaac306
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 59, /* 72 SONYPI_EVENT_VENDOR_PRESSED */
239 };
240
241 static int sony_laptop_input_keycode_map[] = {
242 KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
243 KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
244 KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
245 KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
246 KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
247 KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
248 KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
249 KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
250 KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
251 KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
252 KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
253 KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
254 KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
255 KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
256 KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
257 KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
258 KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
259 KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */
260 KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */
261 KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
262 KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
263 KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
264 KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
265 KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
266 KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
267 KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
268 KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
269 KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
270 KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
271 KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
272 KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
273 KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
274 KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
275 KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
276 KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
277 KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
278 KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
279 KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
280 KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
281 KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
282 KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
283 KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
284 BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
285 KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
286 KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
287 KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
288 KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
289 KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
290 KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
291 KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
292 KEY_ZOOMOUT, /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
293 KEY_EJECTCD, /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
294 KEY_F13, /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
295 KEY_PROG4, /* 53 SONYPI_EVENT_PKEY_P4 */
296 KEY_F14, /* 54 SONYPI_EVENT_PKEY_P5 */
297 KEY_F15, /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
298 KEY_VOLUMEUP, /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
299 KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
300 KEY_MEDIA, /* 58 SONYPI_EVENT_MEDIA_PRESSED */
301 KEY_VENDOR, /* 59 SONYPI_EVENT_VENDOR_PRESSED */
302 };
303
304 /* release buttons after a short delay if pressed */
305 static void do_sony_laptop_release_key(unsigned long unused)
306 {
307 struct sony_laptop_keypress kp;
308 unsigned long flags;
309
310 spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
311
312 if (kfifo_out(&sony_laptop_input.fifo,
313 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
314 input_report_key(kp.dev, kp.key, 0);
315 input_sync(kp.dev);
316 }
317
318 /* If there is something in the fifo schedule next release. */
319 if (kfifo_len(&sony_laptop_input.fifo) != 0)
320 mod_timer(&sony_laptop_input.release_key_timer,
321 jiffies + msecs_to_jiffies(10));
322
323 spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
324 }
325
326 /* forward event to the input subsystem */
327 static void sony_laptop_report_input_event(u8 event)
328 {
329 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
330 struct input_dev *key_dev = sony_laptop_input.key_dev;
331 struct sony_laptop_keypress kp = { NULL };
332
333 if (event == SONYPI_EVENT_FNKEY_RELEASED ||
334 event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
335 /* Nothing, not all VAIOs generate this event */
336 return;
337 }
338
339 /* report events */
340 switch (event) {
341 /* jog_dev events */
342 case SONYPI_EVENT_JOGDIAL_UP:
343 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
344 input_report_rel(jog_dev, REL_WHEEL, 1);
345 input_sync(jog_dev);
346 return;
347
348 case SONYPI_EVENT_JOGDIAL_DOWN:
349 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
350 input_report_rel(jog_dev, REL_WHEEL, -1);
351 input_sync(jog_dev);
352 return;
353
354 /* key_dev events */
355 case SONYPI_EVENT_JOGDIAL_PRESSED:
356 kp.key = BTN_MIDDLE;
357 kp.dev = jog_dev;
358 break;
359
360 default:
361 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
362 dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
363 break;
364 }
365 if (sony_laptop_input_index[event] != -1) {
366 kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
367 if (kp.key != KEY_UNKNOWN)
368 kp.dev = key_dev;
369 }
370 break;
371 }
372
373 if (kp.dev) {
374 input_report_key(kp.dev, kp.key, 1);
375 /* we emit the scancode so we can always remap the key */
376 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
377 input_sync(kp.dev);
378
379 /* schedule key release */
380 kfifo_in_locked(&sony_laptop_input.fifo,
381 (unsigned char *)&kp, sizeof(kp),
382 &sony_laptop_input.fifo_lock);
383 mod_timer(&sony_laptop_input.release_key_timer,
384 jiffies + msecs_to_jiffies(10));
385 } else
386 dprintk("unknown input event %.2x\n", event);
387 }
388
389 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
390 {
391 struct input_dev *jog_dev;
392 struct input_dev *key_dev;
393 int i;
394 int error;
395
396 /* don't run again if already initialized */
397 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
398 return 0;
399
400 /* kfifo */
401 spin_lock_init(&sony_laptop_input.fifo_lock);
402 error = kfifo_alloc(&sony_laptop_input.fifo,
403 SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
404 if (error) {
405 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
406 goto err_dec_users;
407 }
408
409 setup_timer(&sony_laptop_input.release_key_timer,
410 do_sony_laptop_release_key, 0);
411
412 /* input keys */
413 key_dev = input_allocate_device();
414 if (!key_dev) {
415 error = -ENOMEM;
416 goto err_free_kfifo;
417 }
418
419 key_dev->name = "Sony Vaio Keys";
420 key_dev->id.bustype = BUS_ISA;
421 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
422 key_dev->dev.parent = &acpi_device->dev;
423
424 /* Initialize the Input Drivers: special keys */
425 input_set_capability(key_dev, EV_MSC, MSC_SCAN);
426
427 __set_bit(EV_KEY, key_dev->evbit);
428 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
429 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
430 key_dev->keycode = &sony_laptop_input_keycode_map;
431 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
432 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
433 __clear_bit(KEY_RESERVED, key_dev->keybit);
434
435 error = input_register_device(key_dev);
436 if (error)
437 goto err_free_keydev;
438
439 sony_laptop_input.key_dev = key_dev;
440
441 /* jogdial */
442 jog_dev = input_allocate_device();
443 if (!jog_dev) {
444 error = -ENOMEM;
445 goto err_unregister_keydev;
446 }
447
448 jog_dev->name = "Sony Vaio Jogdial";
449 jog_dev->id.bustype = BUS_ISA;
450 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
451 key_dev->dev.parent = &acpi_device->dev;
452
453 input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
454 input_set_capability(jog_dev, EV_REL, REL_WHEEL);
455
456 error = input_register_device(jog_dev);
457 if (error)
458 goto err_free_jogdev;
459
460 sony_laptop_input.jog_dev = jog_dev;
461
462 return 0;
463
464 err_free_jogdev:
465 input_free_device(jog_dev);
466
467 err_unregister_keydev:
468 input_unregister_device(key_dev);
469 /* to avoid kref underflow below at input_free_device */
470 key_dev = NULL;
471
472 err_free_keydev:
473 input_free_device(key_dev);
474
475 err_free_kfifo:
476 kfifo_free(&sony_laptop_input.fifo);
477
478 err_dec_users:
479 atomic_dec(&sony_laptop_input.users);
480 return error;
481 }
482
483 static void sony_laptop_remove_input(void)
484 {
485 struct sony_laptop_keypress kp = { NULL };
486
487 /* Cleanup only after the last user has gone */
488 if (!atomic_dec_and_test(&sony_laptop_input.users))
489 return;
490
491 del_timer_sync(&sony_laptop_input.release_key_timer);
492
493 /*
494 * Generate key-up events for remaining keys. Note that we don't
495 * need locking since nobody is adding new events to the kfifo.
496 */
497 while (kfifo_out(&sony_laptop_input.fifo,
498 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
499 input_report_key(kp.dev, kp.key, 0);
500 input_sync(kp.dev);
501 }
502
503 /* destroy input devs */
504 input_unregister_device(sony_laptop_input.key_dev);
505 sony_laptop_input.key_dev = NULL;
506
507 if (sony_laptop_input.jog_dev) {
508 input_unregister_device(sony_laptop_input.jog_dev);
509 sony_laptop_input.jog_dev = NULL;
510 }
511
512 kfifo_free(&sony_laptop_input.fifo);
513 }
514
515 /*********** Platform Device ***********/
516
517 static atomic_t sony_pf_users = ATOMIC_INIT(0);
518 static struct platform_driver sony_pf_driver = {
519 .driver = {
520 .name = "sony-laptop",
521 .owner = THIS_MODULE,
522 }
523 };
524 static struct platform_device *sony_pf_device;
525
526 static int sony_pf_add(void)
527 {
528 int ret = 0;
529
530 /* don't run again if already initialized */
531 if (atomic_add_return(1, &sony_pf_users) > 1)
532 return 0;
533
534 ret = platform_driver_register(&sony_pf_driver);
535 if (ret)
536 goto out;
537
538 sony_pf_device = platform_device_alloc("sony-laptop", -1);
539 if (!sony_pf_device) {
540 ret = -ENOMEM;
541 goto out_platform_registered;
542 }
543
544 ret = platform_device_add(sony_pf_device);
545 if (ret)
546 goto out_platform_alloced;
547
548 return 0;
549
550 out_platform_alloced:
551 platform_device_put(sony_pf_device);
552 sony_pf_device = NULL;
553 out_platform_registered:
554 platform_driver_unregister(&sony_pf_driver);
555 out:
556 atomic_dec(&sony_pf_users);
557 return ret;
558 }
559
560 static void sony_pf_remove(void)
561 {
562 /* deregister only after the last user has gone */
563 if (!atomic_dec_and_test(&sony_pf_users))
564 return;
565
566 platform_device_unregister(sony_pf_device);
567 platform_driver_unregister(&sony_pf_driver);
568 }
569
570 /*********** SNC (SNY5001) Device ***********/
571
572 /* the device uses 1-based values, while the backlight subsystem uses
573 0-based values */
574 #define SONY_MAX_BRIGHTNESS 8
575
576 #define SNC_VALIDATE_IN 0
577 #define SNC_VALIDATE_OUT 1
578
579 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
580 char *);
581 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
582 const char *, size_t);
583 static int boolean_validate(const int, const int);
584 static int brightness_default_validate(const int, const int);
585
586 struct sony_nc_value {
587 char *name; /* name of the entry */
588 char **acpiget; /* names of the ACPI get function */
589 char **acpiset; /* names of the ACPI set function */
590 int (*validate)(const int, const int); /* input/output validation */
591 int value; /* current setting */
592 int valid; /* Has ever been set */
593 int debug; /* active only in debug mode ? */
594 struct device_attribute devattr; /* sysfs atribute */
595 };
596
597 #define SNC_HANDLE_NAMES(_name, _values...) \
598 static char *snc_##_name[] = { _values, NULL }
599
600 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
601 { \
602 .name = __stringify(_name), \
603 .acpiget = _getters, \
604 .acpiset = _setters, \
605 .validate = _validate, \
606 .debug = _debug, \
607 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
608 }
609
610 #define SNC_HANDLE_NULL { .name = NULL }
611
612 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
613
614 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
615 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
616
617 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
618 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
619
620 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
621 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
622
623 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
624 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
625
626 SNC_HANDLE_NAMES(lidstate_get, "GLID");
627
628 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
629 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
630
631 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
632 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
633
634 SNC_HANDLE_NAMES(PID_get, "GPID");
635
636 SNC_HANDLE_NAMES(CTR_get, "GCTR");
637 SNC_HANDLE_NAMES(CTR_set, "SCTR");
638
639 SNC_HANDLE_NAMES(PCR_get, "GPCR");
640 SNC_HANDLE_NAMES(PCR_set, "SPCR");
641
642 SNC_HANDLE_NAMES(CMI_get, "GCMI");
643 SNC_HANDLE_NAMES(CMI_set, "SCMI");
644
645 static struct sony_nc_value sony_nc_values[] = {
646 SNC_HANDLE(brightness_default, snc_brightness_def_get,
647 snc_brightness_def_set, brightness_default_validate, 0),
648 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
649 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
650 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
651 boolean_validate, 0),
652 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
653 boolean_validate, 1),
654 SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
655 boolean_validate, 0),
656 SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
657 boolean_validate, 0),
658 SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
659 boolean_validate, 0),
660 /* unknown methods */
661 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
662 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
663 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
664 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
665 SNC_HANDLE_NULL
666 };
667
668 static acpi_handle sony_nc_acpi_handle;
669 static struct acpi_device *sony_nc_acpi_device = NULL;
670
671 /*
672 * acpi_evaluate_object wrappers
673 */
674 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
675 {
676 struct acpi_buffer output;
677 union acpi_object out_obj;
678 acpi_status status;
679
680 output.length = sizeof(out_obj);
681 output.pointer = &out_obj;
682
683 status = acpi_evaluate_object(handle, name, NULL, &output);
684 if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
685 *result = out_obj.integer.value;
686 return 0;
687 }
688
689 printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
690
691 return -1;
692 }
693
694 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
695 int *result)
696 {
697 struct acpi_object_list params;
698 union acpi_object in_obj;
699 struct acpi_buffer output;
700 union acpi_object out_obj;
701 acpi_status status;
702
703 params.count = 1;
704 params.pointer = &in_obj;
705 in_obj.type = ACPI_TYPE_INTEGER;
706 in_obj.integer.value = value;
707
708 output.length = sizeof(out_obj);
709 output.pointer = &out_obj;
710
711 status = acpi_evaluate_object(handle, name, &params, &output);
712 if (status == AE_OK) {
713 if (result != NULL) {
714 if (out_obj.type != ACPI_TYPE_INTEGER) {
715 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
716 "return type\n");
717 return -1;
718 }
719 *result = out_obj.integer.value;
720 }
721 return 0;
722 }
723
724 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
725
726 return -1;
727 }
728
729 static int sony_find_snc_handle(int handle)
730 {
731 int i;
732 int result;
733
734 for (i = 0x20; i < 0x30; i++) {
735 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
736 if (result == handle)
737 return i-0x20;
738 }
739
740 return -1;
741 }
742
743 static int sony_call_snc_handle(int handle, int argument, int *result)
744 {
745 int offset = sony_find_snc_handle(handle);
746
747 if (offset < 0)
748 return -1;
749
750 return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
751 result);
752 }
753
754 /*
755 * sony_nc_values input/output validate functions
756 */
757
758 /* brightness_default_validate:
759 *
760 * manipulate input output values to keep consistency with the
761 * backlight framework for which brightness values are 0-based.
762 */
763 static int brightness_default_validate(const int direction, const int value)
764 {
765 switch (direction) {
766 case SNC_VALIDATE_OUT:
767 return value - 1;
768 case SNC_VALIDATE_IN:
769 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
770 return value + 1;
771 }
772 return -EINVAL;
773 }
774
775 /* boolean_validate:
776 *
777 * on input validate boolean values 0/1, on output just pass the
778 * received value.
779 */
780 static int boolean_validate(const int direction, const int value)
781 {
782 if (direction == SNC_VALIDATE_IN) {
783 if (value != 0 && value != 1)
784 return -EINVAL;
785 }
786 return value;
787 }
788
789 /*
790 * Sysfs show/store common to all sony_nc_values
791 */
792 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
793 char *buffer)
794 {
795 int value;
796 struct sony_nc_value *item =
797 container_of(attr, struct sony_nc_value, devattr);
798
799 if (!*item->acpiget)
800 return -EIO;
801
802 if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
803 return -EIO;
804
805 if (item->validate)
806 value = item->validate(SNC_VALIDATE_OUT, value);
807
808 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
809 }
810
811 static ssize_t sony_nc_sysfs_store(struct device *dev,
812 struct device_attribute *attr,
813 const char *buffer, size_t count)
814 {
815 int value;
816 struct sony_nc_value *item =
817 container_of(attr, struct sony_nc_value, devattr);
818
819 if (!item->acpiset)
820 return -EIO;
821
822 if (count > 31)
823 return -EINVAL;
824
825 value = simple_strtoul(buffer, NULL, 10);
826
827 if (item->validate)
828 value = item->validate(SNC_VALIDATE_IN, value);
829
830 if (value < 0)
831 return value;
832
833 if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
834 return -EIO;
835 item->value = value;
836 item->valid = 1;
837 return count;
838 }
839
840
841 /*
842 * Backlight device
843 */
844 static int sony_backlight_update_status(struct backlight_device *bd)
845 {
846 return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
847 bd->props.brightness + 1, NULL);
848 }
849
850 static int sony_backlight_get_brightness(struct backlight_device *bd)
851 {
852 int value;
853
854 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
855 return 0;
856 /* brightness levels are 1-based, while backlight ones are 0-based */
857 return value - 1;
858 }
859
860 static struct backlight_device *sony_backlight_device;
861 static const struct backlight_ops sony_backlight_ops = {
862 .update_status = sony_backlight_update_status,
863 .get_brightness = sony_backlight_get_brightness,
864 };
865
866 /*
867 * New SNC-only Vaios event mapping to driver known keys
868 */
869 struct sony_nc_event {
870 u8 data;
871 u8 event;
872 };
873
874 static struct sony_nc_event sony_100_events[] = {
875 { 0x90, SONYPI_EVENT_PKEY_P1 },
876 { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
877 { 0x91, SONYPI_EVENT_PKEY_P2 },
878 { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
879 { 0x81, SONYPI_EVENT_FNKEY_F1 },
880 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
881 { 0x82, SONYPI_EVENT_FNKEY_F2 },
882 { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
883 { 0x83, SONYPI_EVENT_FNKEY_F3 },
884 { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
885 { 0x84, SONYPI_EVENT_FNKEY_F4 },
886 { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
887 { 0x85, SONYPI_EVENT_FNKEY_F5 },
888 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
889 { 0x86, SONYPI_EVENT_FNKEY_F6 },
890 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
891 { 0x87, SONYPI_EVENT_FNKEY_F7 },
892 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
893 { 0x89, SONYPI_EVENT_FNKEY_F9 },
894 { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
895 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
896 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
897 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
898 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
899 { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
900 { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
901 { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
902 { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
903 { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
904 { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
905 { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
906 { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
907 { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
908 { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
909 { 0xa6, SONYPI_EVENT_HELP_PRESSED },
910 { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
911 { 0, 0 },
912 };
913
914 static struct sony_nc_event sony_127_events[] = {
915 { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
916 { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
917 { 0x82, SONYPI_EVENT_PKEY_P1 },
918 { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
919 { 0x83, SONYPI_EVENT_PKEY_P2 },
920 { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
921 { 0x84, SONYPI_EVENT_PKEY_P3 },
922 { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
923 { 0x85, SONYPI_EVENT_PKEY_P4 },
924 { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
925 { 0x86, SONYPI_EVENT_PKEY_P5 },
926 { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
927 { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
928 { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
929 { 0, 0 },
930 };
931
932 /*
933 * ACPI callbacks
934 */
935 static void sony_nc_notify(struct acpi_device *device, u32 event)
936 {
937 u32 ev = event;
938
939 if (ev >= 0x90) {
940 /* New-style event */
941 int result;
942 int key_handle = 0;
943 ev -= 0x90;
944
945 if (sony_find_snc_handle(0x100) == ev)
946 key_handle = 0x100;
947 if (sony_find_snc_handle(0x127) == ev)
948 key_handle = 0x127;
949
950 if (key_handle) {
951 struct sony_nc_event *key_event;
952
953 if (sony_call_snc_handle(key_handle, 0x200, &result)) {
954 dprintk("sony_nc_notify, unable to decode"
955 " event 0x%.2x 0x%.2x\n", key_handle,
956 ev);
957 /* restore the original event */
958 ev = event;
959 } else {
960 ev = result & 0xFF;
961
962 if (key_handle == 0x100)
963 key_event = sony_100_events;
964 else
965 key_event = sony_127_events;
966
967 for (; key_event->data; key_event++) {
968 if (key_event->data == ev) {
969 ev = key_event->event;
970 break;
971 }
972 }
973
974 if (!key_event->data)
975 printk(KERN_INFO DRV_PFX
976 "Unknown event: 0x%x 0x%x\n",
977 key_handle,
978 ev);
979 else
980 sony_laptop_report_input_event(ev);
981 }
982 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
983 sony_nc_rfkill_update();
984 return;
985 }
986 } else
987 sony_laptop_report_input_event(ev);
988
989 dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
990 acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
991 }
992
993 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
994 void *context, void **return_value)
995 {
996 struct acpi_device_info *info;
997
998 if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
999 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
1000 (char *)&info->name, info->param_count);
1001
1002 kfree(info);
1003 }
1004
1005 return AE_OK;
1006 }
1007
1008 /*
1009 * ACPI device
1010 */
1011 static int sony_nc_function_setup(struct acpi_device *device)
1012 {
1013 int result;
1014
1015 /* Enable all events */
1016 acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1017
1018 /* Setup hotkeys */
1019 sony_call_snc_handle(0x0100, 0, &result);
1020 sony_call_snc_handle(0x0101, 0, &result);
1021 sony_call_snc_handle(0x0102, 0x100, &result);
1022 sony_call_snc_handle(0x0127, 0, &result);
1023
1024 return 0;
1025 }
1026
1027 static int sony_nc_resume(struct acpi_device *device)
1028 {
1029 struct sony_nc_value *item;
1030 acpi_handle handle;
1031
1032 for (item = sony_nc_values; item->name; item++) {
1033 int ret;
1034
1035 if (!item->valid)
1036 continue;
1037 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1038 item->value, NULL);
1039 if (ret < 0) {
1040 printk("%s: %d\n", __func__, ret);
1041 break;
1042 }
1043 }
1044
1045 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1046 &handle))) {
1047 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1048 dprintk("ECON Method failed\n");
1049 }
1050
1051 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1052 &handle))) {
1053 dprintk("Doing SNC setup\n");
1054 sony_nc_function_setup(device);
1055 }
1056
1057 /* set the last requested brightness level */
1058 if (sony_backlight_device &&
1059 sony_backlight_update_status(sony_backlight_device) < 0)
1060 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1061
1062 /* re-read rfkill state */
1063 sony_nc_rfkill_update();
1064
1065 return 0;
1066 }
1067
1068 static void sony_nc_rfkill_cleanup(void)
1069 {
1070 int i;
1071
1072 for (i = 0; i < N_SONY_RFKILL; i++) {
1073 if (sony_rfkill_devices[i]) {
1074 rfkill_unregister(sony_rfkill_devices[i]);
1075 rfkill_destroy(sony_rfkill_devices[i]);
1076 }
1077 }
1078 }
1079
1080 static int sony_nc_rfkill_set(void *data, bool blocked)
1081 {
1082 int result;
1083 int argument = sony_rfkill_address[(long) data] + 0x100;
1084
1085 if (!blocked)
1086 argument |= 0xff0000;
1087
1088 return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1089 }
1090
1091 static const struct rfkill_ops sony_rfkill_ops = {
1092 .set_block = sony_nc_rfkill_set,
1093 };
1094
1095 static int sony_nc_setup_rfkill(struct acpi_device *device,
1096 enum sony_nc_rfkill nc_type)
1097 {
1098 int err = 0;
1099 struct rfkill *rfk;
1100 enum rfkill_type type;
1101 const char *name;
1102 int result;
1103 bool hwblock;
1104
1105 switch (nc_type) {
1106 case SONY_WIFI:
1107 type = RFKILL_TYPE_WLAN;
1108 name = "sony-wifi";
1109 break;
1110 case SONY_BLUETOOTH:
1111 type = RFKILL_TYPE_BLUETOOTH;
1112 name = "sony-bluetooth";
1113 break;
1114 case SONY_WWAN:
1115 type = RFKILL_TYPE_WWAN;
1116 name = "sony-wwan";
1117 break;
1118 case SONY_WIMAX:
1119 type = RFKILL_TYPE_WIMAX;
1120 name = "sony-wimax";
1121 break;
1122 default:
1123 return -EINVAL;
1124 }
1125
1126 rfk = rfkill_alloc(name, &device->dev, type,
1127 &sony_rfkill_ops, (void *)nc_type);
1128 if (!rfk)
1129 return -ENOMEM;
1130
1131 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1132 hwblock = !(result & 0x1);
1133 rfkill_set_hw_state(rfk, hwblock);
1134
1135 err = rfkill_register(rfk);
1136 if (err) {
1137 rfkill_destroy(rfk);
1138 return err;
1139 }
1140 sony_rfkill_devices[nc_type] = rfk;
1141 return err;
1142 }
1143
1144 static void sony_nc_rfkill_update(void)
1145 {
1146 enum sony_nc_rfkill i;
1147 int result;
1148 bool hwblock;
1149
1150 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1151 hwblock = !(result & 0x1);
1152
1153 for (i = 0; i < N_SONY_RFKILL; i++) {
1154 int argument = sony_rfkill_address[i];
1155
1156 if (!sony_rfkill_devices[i])
1157 continue;
1158
1159 if (hwblock) {
1160 if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1161 /* we already know we're blocked */
1162 }
1163 continue;
1164 }
1165
1166 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1167 rfkill_set_states(sony_rfkill_devices[i],
1168 !(result & 0xf), false);
1169 }
1170 }
1171
1172 static void sony_nc_rfkill_setup(struct acpi_device *device)
1173 {
1174 int offset;
1175 u8 dev_code, i;
1176 acpi_status status;
1177 struct acpi_object_list params;
1178 union acpi_object in_obj;
1179 union acpi_object *device_enum;
1180 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1181
1182 offset = sony_find_snc_handle(0x124);
1183 if (offset == -1) {
1184 offset = sony_find_snc_handle(0x135);
1185 if (offset == -1)
1186 return;
1187 else
1188 sony_rfkill_handle = 0x135;
1189 } else
1190 sony_rfkill_handle = 0x124;
1191 dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1192
1193 /* need to read the whole buffer returned by the acpi call to SN06
1194 * here otherwise we may miss some features
1195 */
1196 params.count = 1;
1197 params.pointer = &in_obj;
1198 in_obj.type = ACPI_TYPE_INTEGER;
1199 in_obj.integer.value = offset;
1200 status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1201 &buffer);
1202 if (ACPI_FAILURE(status)) {
1203 dprintk("Radio device enumeration failed\n");
1204 return;
1205 }
1206
1207 device_enum = (union acpi_object *) buffer.pointer;
1208 if (!device_enum) {
1209 pr_err("Invalid SN06 return object\n");
1210 goto out_no_enum;
1211 }
1212 if (device_enum->type != ACPI_TYPE_BUFFER) {
1213 pr_err("Invalid SN06 return object type 0x%.2x\n",
1214 device_enum->type);
1215 goto out_no_enum;
1216 }
1217
1218 /* the buffer is filled with magic numbers describing the devices
1219 * available, 0xff terminates the enumeration
1220 */
1221 for (i = 0; i < device_enum->buffer.length; i++) {
1222
1223 dev_code = *(device_enum->buffer.pointer + i);
1224 if (dev_code == 0xff)
1225 break;
1226
1227 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1228
1229 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1230 sony_nc_setup_rfkill(device, SONY_WIFI);
1231
1232 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1233 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1234
1235 if ((0xf0 & dev_code) == 0x20 &&
1236 !sony_rfkill_devices[SONY_WWAN])
1237 sony_nc_setup_rfkill(device, SONY_WWAN);
1238
1239 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1240 sony_nc_setup_rfkill(device, SONY_WIMAX);
1241 }
1242
1243 out_no_enum:
1244 kfree(buffer.pointer);
1245 return;
1246 }
1247
1248 static int sony_nc_add(struct acpi_device *device)
1249 {
1250 acpi_status status;
1251 int result = 0;
1252 acpi_handle handle;
1253 struct sony_nc_value *item;
1254
1255 printk(KERN_INFO DRV_PFX "%s v%s.\n",
1256 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1257
1258 sony_nc_acpi_device = device;
1259 strcpy(acpi_device_class(device), "sony/hotkey");
1260
1261 sony_nc_acpi_handle = device->handle;
1262
1263 /* read device status */
1264 result = acpi_bus_get_status(device);
1265 /* bail IFF the above call was successful and the device is not present */
1266 if (!result && !device->status.present) {
1267 dprintk("Device not present\n");
1268 result = -ENODEV;
1269 goto outwalk;
1270 }
1271
1272 if (debug) {
1273 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1274 1, sony_walk_callback, NULL, NULL, NULL);
1275 if (ACPI_FAILURE(status)) {
1276 printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1277 result = -ENODEV;
1278 goto outwalk;
1279 }
1280 }
1281
1282 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1283 &handle))) {
1284 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1285 dprintk("ECON Method failed\n");
1286 }
1287
1288 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1289 &handle))) {
1290 dprintk("Doing SNC setup\n");
1291 sony_nc_function_setup(device);
1292 sony_nc_rfkill_setup(device);
1293 }
1294
1295 /* setup input devices and helper fifo */
1296 result = sony_laptop_setup_input(device);
1297 if (result) {
1298 printk(KERN_ERR DRV_PFX
1299 "Unable to create input devices.\n");
1300 goto outwalk;
1301 }
1302
1303 if (acpi_video_backlight_support()) {
1304 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1305 "controlled by ACPI video driver\n");
1306 } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1307 &handle))) {
1308 struct backlight_properties props;
1309 memset(&props, 0, sizeof(struct backlight_properties));
1310 props.max_brightness = SONY_MAX_BRIGHTNESS - 1;
1311 sony_backlight_device = backlight_device_register("sony", NULL,
1312 NULL,
1313 &sony_backlight_ops,
1314 &props);
1315
1316 if (IS_ERR(sony_backlight_device)) {
1317 printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1318 sony_backlight_device = NULL;
1319 } else {
1320 sony_backlight_device->props.brightness =
1321 sony_backlight_get_brightness
1322 (sony_backlight_device);
1323 }
1324
1325 }
1326
1327 result = sony_pf_add();
1328 if (result)
1329 goto outbacklight;
1330
1331 /* create sony_pf sysfs attributes related to the SNC device */
1332 for (item = sony_nc_values; item->name; ++item) {
1333
1334 if (!debug && item->debug)
1335 continue;
1336
1337 /* find the available acpiget as described in the DSDT */
1338 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1339 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1340 *item->acpiget,
1341 &handle))) {
1342 dprintk("Found %s getter: %s\n",
1343 item->name, *item->acpiget);
1344 item->devattr.attr.mode |= S_IRUGO;
1345 break;
1346 }
1347 }
1348
1349 /* find the available acpiset as described in the DSDT */
1350 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1351 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1352 *item->acpiset,
1353 &handle))) {
1354 dprintk("Found %s setter: %s\n",
1355 item->name, *item->acpiset);
1356 item->devattr.attr.mode |= S_IWUSR;
1357 break;
1358 }
1359 }
1360
1361 if (item->devattr.attr.mode != 0) {
1362 result =
1363 device_create_file(&sony_pf_device->dev,
1364 &item->devattr);
1365 if (result)
1366 goto out_sysfs;
1367 }
1368 }
1369
1370 return 0;
1371
1372 out_sysfs:
1373 for (item = sony_nc_values; item->name; ++item) {
1374 device_remove_file(&sony_pf_device->dev, &item->devattr);
1375 }
1376 sony_pf_remove();
1377
1378 outbacklight:
1379 if (sony_backlight_device)
1380 backlight_device_unregister(sony_backlight_device);
1381
1382 sony_laptop_remove_input();
1383
1384 outwalk:
1385 sony_nc_rfkill_cleanup();
1386 return result;
1387 }
1388
1389 static int sony_nc_remove(struct acpi_device *device, int type)
1390 {
1391 struct sony_nc_value *item;
1392
1393 if (sony_backlight_device)
1394 backlight_device_unregister(sony_backlight_device);
1395
1396 sony_nc_acpi_device = NULL;
1397
1398 for (item = sony_nc_values; item->name; ++item) {
1399 device_remove_file(&sony_pf_device->dev, &item->devattr);
1400 }
1401
1402 sony_pf_remove();
1403 sony_laptop_remove_input();
1404 sony_nc_rfkill_cleanup();
1405 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1406
1407 return 0;
1408 }
1409
1410 static const struct acpi_device_id sony_device_ids[] = {
1411 {SONY_NC_HID, 0},
1412 {SONY_PIC_HID, 0},
1413 {"", 0},
1414 };
1415 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1416
1417 static const struct acpi_device_id sony_nc_device_ids[] = {
1418 {SONY_NC_HID, 0},
1419 {"", 0},
1420 };
1421
1422 static struct acpi_driver sony_nc_driver = {
1423 .name = SONY_NC_DRIVER_NAME,
1424 .class = SONY_NC_CLASS,
1425 .ids = sony_nc_device_ids,
1426 .owner = THIS_MODULE,
1427 .ops = {
1428 .add = sony_nc_add,
1429 .remove = sony_nc_remove,
1430 .resume = sony_nc_resume,
1431 .notify = sony_nc_notify,
1432 },
1433 };
1434
1435 /*********** SPIC (SNY6001) Device ***********/
1436
1437 #define SONYPI_DEVICE_TYPE1 0x00000001
1438 #define SONYPI_DEVICE_TYPE2 0x00000002
1439 #define SONYPI_DEVICE_TYPE3 0x00000004
1440 #define SONYPI_DEVICE_TYPE4 0x00000008
1441
1442 #define SONYPI_TYPE1_OFFSET 0x04
1443 #define SONYPI_TYPE2_OFFSET 0x12
1444 #define SONYPI_TYPE3_OFFSET 0x12
1445
1446 struct sony_pic_ioport {
1447 struct acpi_resource_io io1;
1448 struct acpi_resource_io io2;
1449 struct list_head list;
1450 };
1451
1452 struct sony_pic_irq {
1453 struct acpi_resource_irq irq;
1454 struct list_head list;
1455 };
1456
1457 struct sonypi_eventtypes {
1458 u8 data;
1459 unsigned long mask;
1460 struct sonypi_event *events;
1461 };
1462
1463 struct sony_pic_dev {
1464 struct acpi_device *acpi_dev;
1465 struct sony_pic_irq *cur_irq;
1466 struct sony_pic_ioport *cur_ioport;
1467 struct list_head interrupts;
1468 struct list_head ioports;
1469 struct mutex lock;
1470 struct sonypi_eventtypes *event_types;
1471 int (*handle_irq)(const u8, const u8);
1472 int model;
1473 u16 evport_offset;
1474 u8 camera_power;
1475 u8 bluetooth_power;
1476 u8 wwan_power;
1477 };
1478
1479 static struct sony_pic_dev spic_dev = {
1480 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
1481 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
1482 };
1483
1484 static int spic_drv_registered;
1485
1486 /* Event masks */
1487 #define SONYPI_JOGGER_MASK 0x00000001
1488 #define SONYPI_CAPTURE_MASK 0x00000002
1489 #define SONYPI_FNKEY_MASK 0x00000004
1490 #define SONYPI_BLUETOOTH_MASK 0x00000008
1491 #define SONYPI_PKEY_MASK 0x00000010
1492 #define SONYPI_BACK_MASK 0x00000020
1493 #define SONYPI_HELP_MASK 0x00000040
1494 #define SONYPI_LID_MASK 0x00000080
1495 #define SONYPI_ZOOM_MASK 0x00000100
1496 #define SONYPI_THUMBPHRASE_MASK 0x00000200
1497 #define SONYPI_MEYE_MASK 0x00000400
1498 #define SONYPI_MEMORYSTICK_MASK 0x00000800
1499 #define SONYPI_BATTERY_MASK 0x00001000
1500 #define SONYPI_WIRELESS_MASK 0x00002000
1501
1502 struct sonypi_event {
1503 u8 data;
1504 u8 event;
1505 };
1506
1507 /* The set of possible button release events */
1508 static struct sonypi_event sonypi_releaseev[] = {
1509 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1510 { 0, 0 }
1511 };
1512
1513 /* The set of possible jogger events */
1514 static struct sonypi_event sonypi_joggerev[] = {
1515 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1516 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1517 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1518 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1519 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1520 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1521 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1522 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1523 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1524 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1525 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1526 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1527 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1528 { 0, 0 }
1529 };
1530
1531 /* The set of possible capture button events */
1532 static struct sonypi_event sonypi_captureev[] = {
1533 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1534 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1535 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1536 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1537 { 0, 0 }
1538 };
1539
1540 /* The set of possible fnkeys events */
1541 static struct sonypi_event sonypi_fnkeyev[] = {
1542 { 0x10, SONYPI_EVENT_FNKEY_ESC },
1543 { 0x11, SONYPI_EVENT_FNKEY_F1 },
1544 { 0x12, SONYPI_EVENT_FNKEY_F2 },
1545 { 0x13, SONYPI_EVENT_FNKEY_F3 },
1546 { 0x14, SONYPI_EVENT_FNKEY_F4 },
1547 { 0x15, SONYPI_EVENT_FNKEY_F5 },
1548 { 0x16, SONYPI_EVENT_FNKEY_F6 },
1549 { 0x17, SONYPI_EVENT_FNKEY_F7 },
1550 { 0x18, SONYPI_EVENT_FNKEY_F8 },
1551 { 0x19, SONYPI_EVENT_FNKEY_F9 },
1552 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1553 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1554 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1555 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1556 { 0x21, SONYPI_EVENT_FNKEY_1 },
1557 { 0x22, SONYPI_EVENT_FNKEY_2 },
1558 { 0x31, SONYPI_EVENT_FNKEY_D },
1559 { 0x32, SONYPI_EVENT_FNKEY_E },
1560 { 0x33, SONYPI_EVENT_FNKEY_F },
1561 { 0x34, SONYPI_EVENT_FNKEY_S },
1562 { 0x35, SONYPI_EVENT_FNKEY_B },
1563 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1564 { 0, 0 }
1565 };
1566
1567 /* The set of possible program key events */
1568 static struct sonypi_event sonypi_pkeyev[] = {
1569 { 0x01, SONYPI_EVENT_PKEY_P1 },
1570 { 0x02, SONYPI_EVENT_PKEY_P2 },
1571 { 0x04, SONYPI_EVENT_PKEY_P3 },
1572 { 0x20, SONYPI_EVENT_PKEY_P1 },
1573 { 0, 0 }
1574 };
1575
1576 /* The set of possible bluetooth events */
1577 static struct sonypi_event sonypi_blueev[] = {
1578 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1579 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1580 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1581 { 0, 0 }
1582 };
1583
1584 /* The set of possible wireless events */
1585 static struct sonypi_event sonypi_wlessev[] = {
1586 { 0x59, SONYPI_EVENT_WIRELESS_ON },
1587 { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1588 { 0, 0 }
1589 };
1590
1591 /* The set of possible back button events */
1592 static struct sonypi_event sonypi_backev[] = {
1593 { 0x20, SONYPI_EVENT_BACK_PRESSED },
1594 { 0, 0 }
1595 };
1596
1597 /* The set of possible help button events */
1598 static struct sonypi_event sonypi_helpev[] = {
1599 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1600 { 0, 0 }
1601 };
1602
1603
1604 /* The set of possible lid events */
1605 static struct sonypi_event sonypi_lidev[] = {
1606 { 0x51, SONYPI_EVENT_LID_CLOSED },
1607 { 0x50, SONYPI_EVENT_LID_OPENED },
1608 { 0, 0 }
1609 };
1610
1611 /* The set of possible zoom events */
1612 static struct sonypi_event sonypi_zoomev[] = {
1613 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1614 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1615 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1616 { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1617 { 0, 0 }
1618 };
1619
1620 /* The set of possible thumbphrase events */
1621 static struct sonypi_event sonypi_thumbphraseev[] = {
1622 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1623 { 0, 0 }
1624 };
1625
1626 /* The set of possible motioneye camera events */
1627 static struct sonypi_event sonypi_meyeev[] = {
1628 { 0x00, SONYPI_EVENT_MEYE_FACE },
1629 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1630 { 0, 0 }
1631 };
1632
1633 /* The set of possible memorystick events */
1634 static struct sonypi_event sonypi_memorystickev[] = {
1635 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1636 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1637 { 0, 0 }
1638 };
1639
1640 /* The set of possible battery events */
1641 static struct sonypi_event sonypi_batteryev[] = {
1642 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1643 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1644 { 0, 0 }
1645 };
1646
1647 /* The set of possible volume events */
1648 static struct sonypi_event sonypi_volumeev[] = {
1649 { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1650 { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1651 { 0, 0 }
1652 };
1653
1654 /* The set of possible brightness events */
1655 static struct sonypi_event sonypi_brightnessev[] = {
1656 { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1657 { 0, 0 }
1658 };
1659
1660 static struct sonypi_eventtypes type1_events[] = {
1661 { 0, 0xffffffff, sonypi_releaseev },
1662 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1663 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1664 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1665 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1666 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1667 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1668 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1669 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1670 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1671 { 0 },
1672 };
1673 static struct sonypi_eventtypes type2_events[] = {
1674 { 0, 0xffffffff, sonypi_releaseev },
1675 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1676 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1677 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1678 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1679 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1680 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1681 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1682 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1683 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1684 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1685 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1686 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1687 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1688 { 0 },
1689 };
1690 static struct sonypi_eventtypes type3_events[] = {
1691 { 0, 0xffffffff, sonypi_releaseev },
1692 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1693 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1694 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1695 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1696 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1697 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1698 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1699 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1700 { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1701 { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1702 { 0 },
1703 };
1704
1705 /* low level spic calls */
1706 #define ITERATIONS_LONG 10000
1707 #define ITERATIONS_SHORT 10
1708 #define wait_on_command(command, iterations) { \
1709 unsigned int n = iterations; \
1710 while (--n && (command)) \
1711 udelay(1); \
1712 if (!n) \
1713 dprintk("command failed at %s : %s (line %d)\n", \
1714 __FILE__, __func__, __LINE__); \
1715 }
1716
1717 static u8 sony_pic_call1(u8 dev)
1718 {
1719 u8 v1, v2;
1720
1721 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1722 ITERATIONS_LONG);
1723 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1724 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1725 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1726 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1727 return v2;
1728 }
1729
1730 static u8 sony_pic_call2(u8 dev, u8 fn)
1731 {
1732 u8 v1;
1733
1734 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1735 ITERATIONS_LONG);
1736 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1737 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1738 ITERATIONS_LONG);
1739 outb(fn, spic_dev.cur_ioport->io1.minimum);
1740 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1741 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1742 return v1;
1743 }
1744
1745 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1746 {
1747 u8 v1;
1748
1749 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1750 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1751 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1752 outb(fn, spic_dev.cur_ioport->io1.minimum);
1753 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1754 outb(v, spic_dev.cur_ioport->io1.minimum);
1755 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1756 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1757 dev, fn, v, v1);
1758 return v1;
1759 }
1760
1761 /*
1762 * minidrivers for SPIC models
1763 */
1764 static int type3_handle_irq(const u8 data_mask, const u8 ev)
1765 {
1766 /*
1767 * 0x31 could mean we have to take some extra action and wait for
1768 * the next irq for some Type3 models, it will generate a new
1769 * irq and we can read new data from the device:
1770 * - 0x5c and 0x5f requires 0xA0
1771 * - 0x61 requires 0xB3
1772 */
1773 if (data_mask == 0x31) {
1774 if (ev == 0x5c || ev == 0x5f)
1775 sony_pic_call1(0xA0);
1776 else if (ev == 0x61)
1777 sony_pic_call1(0xB3);
1778 return 0;
1779 }
1780 return 1;
1781 }
1782
1783 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1784 {
1785 struct pci_dev *pcidev;
1786
1787 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1788 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1789 if (pcidev) {
1790 dev->model = SONYPI_DEVICE_TYPE1;
1791 dev->evport_offset = SONYPI_TYPE1_OFFSET;
1792 dev->event_types = type1_events;
1793 goto out;
1794 }
1795
1796 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1797 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1798 if (pcidev) {
1799 dev->model = SONYPI_DEVICE_TYPE2;
1800 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1801 dev->event_types = type2_events;
1802 goto out;
1803 }
1804
1805 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1806 PCI_DEVICE_ID_INTEL_ICH7_1, 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_ICH8_4, 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 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1826 PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1827 if (pcidev) {
1828 dev->model = SONYPI_DEVICE_TYPE3;
1829 dev->handle_irq = type3_handle_irq;
1830 dev->evport_offset = SONYPI_TYPE3_OFFSET;
1831 dev->event_types = type3_events;
1832 goto out;
1833 }
1834
1835 /* default */
1836 dev->model = SONYPI_DEVICE_TYPE2;
1837 dev->evport_offset = SONYPI_TYPE2_OFFSET;
1838 dev->event_types = type2_events;
1839
1840 out:
1841 if (pcidev)
1842 pci_dev_put(pcidev);
1843
1844 printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1845 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
1846 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1847 }
1848
1849 /* camera tests and poweron/poweroff */
1850 #define SONYPI_CAMERA_PICTURE 5
1851 #define SONYPI_CAMERA_CONTROL 0x10
1852
1853 #define SONYPI_CAMERA_BRIGHTNESS 0
1854 #define SONYPI_CAMERA_CONTRAST 1
1855 #define SONYPI_CAMERA_HUE 2
1856 #define SONYPI_CAMERA_COLOR 3
1857 #define SONYPI_CAMERA_SHARPNESS 4
1858
1859 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
1860 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
1861 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
1862 #define SONYPI_CAMERA_MUTE_MASK 0x40
1863
1864 /* the rest don't need a loop until not 0xff */
1865 #define SONYPI_CAMERA_AGC 6
1866 #define SONYPI_CAMERA_AGC_MASK 0x30
1867 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
1868
1869 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
1870 #define SONYPI_CAMERA_CONTROL 0x10
1871
1872 #define SONYPI_CAMERA_STATUS 7
1873 #define SONYPI_CAMERA_STATUS_READY 0x2
1874 #define SONYPI_CAMERA_STATUS_POSITION 0x4
1875
1876 #define SONYPI_DIRECTION_BACKWARDS 0x4
1877
1878 #define SONYPI_CAMERA_REVISION 8
1879 #define SONYPI_CAMERA_ROMVERSION 9
1880
1881 static int __sony_pic_camera_ready(void)
1882 {
1883 u8 v;
1884
1885 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1886 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1887 }
1888
1889 static int __sony_pic_camera_off(void)
1890 {
1891 if (!camera) {
1892 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1893 return -ENODEV;
1894 }
1895
1896 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1897 SONYPI_CAMERA_MUTE_MASK),
1898 ITERATIONS_SHORT);
1899
1900 if (spic_dev.camera_power) {
1901 sony_pic_call2(0x91, 0);
1902 spic_dev.camera_power = 0;
1903 }
1904 return 0;
1905 }
1906
1907 static int __sony_pic_camera_on(void)
1908 {
1909 int i, j, x;
1910
1911 if (!camera) {
1912 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1913 return -ENODEV;
1914 }
1915
1916 if (spic_dev.camera_power)
1917 return 0;
1918
1919 for (j = 5; j > 0; j--) {
1920
1921 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1922 msleep(10);
1923 sony_pic_call1(0x93);
1924
1925 for (i = 400; i > 0; i--) {
1926 if (__sony_pic_camera_ready())
1927 break;
1928 msleep(10);
1929 }
1930 if (i)
1931 break;
1932 }
1933
1934 if (j == 0) {
1935 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1936 return -ENODEV;
1937 }
1938
1939 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1940 0x5a),
1941 ITERATIONS_SHORT);
1942
1943 spic_dev.camera_power = 1;
1944 return 0;
1945 }
1946
1947 /* External camera command (exported to the motion eye v4l driver) */
1948 int sony_pic_camera_command(int command, u8 value)
1949 {
1950 if (!camera)
1951 return -EIO;
1952
1953 mutex_lock(&spic_dev.lock);
1954
1955 switch (command) {
1956 case SONY_PIC_COMMAND_SETCAMERA:
1957 if (value)
1958 __sony_pic_camera_on();
1959 else
1960 __sony_pic_camera_off();
1961 break;
1962 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1963 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1964 ITERATIONS_SHORT);
1965 break;
1966 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1967 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1968 ITERATIONS_SHORT);
1969 break;
1970 case SONY_PIC_COMMAND_SETCAMERAHUE:
1971 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1972 ITERATIONS_SHORT);
1973 break;
1974 case SONY_PIC_COMMAND_SETCAMERACOLOR:
1975 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1976 ITERATIONS_SHORT);
1977 break;
1978 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1979 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1980 ITERATIONS_SHORT);
1981 break;
1982 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1983 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1984 ITERATIONS_SHORT);
1985 break;
1986 case SONY_PIC_COMMAND_SETCAMERAAGC:
1987 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1988 ITERATIONS_SHORT);
1989 break;
1990 default:
1991 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1992 command);
1993 break;
1994 }
1995 mutex_unlock(&spic_dev.lock);
1996 return 0;
1997 }
1998 EXPORT_SYMBOL(sony_pic_camera_command);
1999
2000 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2001 static void __sony_pic_set_wwanpower(u8 state)
2002 {
2003 state = !!state;
2004 if (spic_dev.wwan_power == state)
2005 return;
2006 sony_pic_call2(0xB0, state);
2007 sony_pic_call1(0x82);
2008 spic_dev.wwan_power = state;
2009 }
2010
2011 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2012 struct device_attribute *attr,
2013 const char *buffer, size_t count)
2014 {
2015 unsigned long value;
2016 if (count > 31)
2017 return -EINVAL;
2018
2019 value = simple_strtoul(buffer, NULL, 10);
2020 mutex_lock(&spic_dev.lock);
2021 __sony_pic_set_wwanpower(value);
2022 mutex_unlock(&spic_dev.lock);
2023
2024 return count;
2025 }
2026
2027 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2028 struct device_attribute *attr, char *buffer)
2029 {
2030 ssize_t count;
2031 mutex_lock(&spic_dev.lock);
2032 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2033 mutex_unlock(&spic_dev.lock);
2034 return count;
2035 }
2036
2037 /* bluetooth subsystem power state */
2038 static void __sony_pic_set_bluetoothpower(u8 state)
2039 {
2040 state = !!state;
2041 if (spic_dev.bluetooth_power == state)
2042 return;
2043 sony_pic_call2(0x96, state);
2044 sony_pic_call1(0x82);
2045 spic_dev.bluetooth_power = state;
2046 }
2047
2048 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2049 struct device_attribute *attr,
2050 const char *buffer, size_t count)
2051 {
2052 unsigned long value;
2053 if (count > 31)
2054 return -EINVAL;
2055
2056 value = simple_strtoul(buffer, NULL, 10);
2057 mutex_lock(&spic_dev.lock);
2058 __sony_pic_set_bluetoothpower(value);
2059 mutex_unlock(&spic_dev.lock);
2060
2061 return count;
2062 }
2063
2064 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2065 struct device_attribute *attr, char *buffer)
2066 {
2067 ssize_t count = 0;
2068 mutex_lock(&spic_dev.lock);
2069 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2070 mutex_unlock(&spic_dev.lock);
2071 return count;
2072 }
2073
2074 /* fan speed */
2075 /* FAN0 information (reverse engineered from ACPI tables) */
2076 #define SONY_PIC_FAN0_STATUS 0x93
2077 static int sony_pic_set_fanspeed(unsigned long value)
2078 {
2079 return ec_write(SONY_PIC_FAN0_STATUS, value);
2080 }
2081
2082 static int sony_pic_get_fanspeed(u8 *value)
2083 {
2084 return ec_read(SONY_PIC_FAN0_STATUS, value);
2085 }
2086
2087 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2088 struct device_attribute *attr,
2089 const char *buffer, size_t count)
2090 {
2091 unsigned long value;
2092 if (count > 31)
2093 return -EINVAL;
2094
2095 value = simple_strtoul(buffer, NULL, 10);
2096 if (sony_pic_set_fanspeed(value))
2097 return -EIO;
2098
2099 return count;
2100 }
2101
2102 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2103 struct device_attribute *attr, char *buffer)
2104 {
2105 u8 value = 0;
2106 if (sony_pic_get_fanspeed(&value))
2107 return -EIO;
2108
2109 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2110 }
2111
2112 #define SPIC_ATTR(_name, _mode) \
2113 struct device_attribute spic_attr_##_name = __ATTR(_name, \
2114 _mode, sony_pic_## _name ##_show, \
2115 sony_pic_## _name ##_store)
2116
2117 static SPIC_ATTR(bluetoothpower, 0644);
2118 static SPIC_ATTR(wwanpower, 0644);
2119 static SPIC_ATTR(fanspeed, 0644);
2120
2121 static struct attribute *spic_attributes[] = {
2122 &spic_attr_bluetoothpower.attr,
2123 &spic_attr_wwanpower.attr,
2124 &spic_attr_fanspeed.attr,
2125 NULL
2126 };
2127
2128 static struct attribute_group spic_attribute_group = {
2129 .attrs = spic_attributes
2130 };
2131
2132 /******** SONYPI compatibility **********/
2133 #ifdef CONFIG_SONYPI_COMPAT
2134
2135 /* battery / brightness / temperature addresses */
2136 #define SONYPI_BAT_FLAGS 0x81
2137 #define SONYPI_LCD_LIGHT 0x96
2138 #define SONYPI_BAT1_PCTRM 0xa0
2139 #define SONYPI_BAT1_LEFT 0xa2
2140 #define SONYPI_BAT1_MAXRT 0xa4
2141 #define SONYPI_BAT2_PCTRM 0xa8
2142 #define SONYPI_BAT2_LEFT 0xaa
2143 #define SONYPI_BAT2_MAXRT 0xac
2144 #define SONYPI_BAT1_MAXTK 0xb0
2145 #define SONYPI_BAT1_FULL 0xb2
2146 #define SONYPI_BAT2_MAXTK 0xb8
2147 #define SONYPI_BAT2_FULL 0xba
2148 #define SONYPI_TEMP_STATUS 0xC1
2149
2150 struct sonypi_compat_s {
2151 struct fasync_struct *fifo_async;
2152 struct kfifo fifo;
2153 spinlock_t fifo_lock;
2154 wait_queue_head_t fifo_proc_list;
2155 atomic_t open_count;
2156 };
2157 static struct sonypi_compat_s sonypi_compat = {
2158 .open_count = ATOMIC_INIT(0),
2159 };
2160
2161 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2162 {
2163 return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2164 }
2165
2166 static int sonypi_misc_release(struct inode *inode, struct file *file)
2167 {
2168 atomic_dec(&sonypi_compat.open_count);
2169 return 0;
2170 }
2171
2172 static int sonypi_misc_open(struct inode *inode, struct file *file)
2173 {
2174 /* Flush input queue on first open */
2175 unsigned long flags;
2176
2177 spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2178
2179 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2180 kfifo_reset(&sonypi_compat.fifo);
2181
2182 spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2183
2184 return 0;
2185 }
2186
2187 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2188 size_t count, loff_t *pos)
2189 {
2190 ssize_t ret;
2191 unsigned char c;
2192
2193 if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2194 (file->f_flags & O_NONBLOCK))
2195 return -EAGAIN;
2196
2197 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2198 kfifo_len(&sonypi_compat.fifo) != 0);
2199 if (ret)
2200 return ret;
2201
2202 while (ret < count &&
2203 (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2204 &sonypi_compat.fifo_lock) == sizeof(c))) {
2205 if (put_user(c, buf++))
2206 return -EFAULT;
2207 ret++;
2208 }
2209
2210 if (ret > 0) {
2211 struct inode *inode = file->f_path.dentry->d_inode;
2212 inode->i_atime = current_fs_time(inode->i_sb);
2213 }
2214
2215 return ret;
2216 }
2217
2218 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2219 {
2220 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2221 if (kfifo_len(&sonypi_compat.fifo))
2222 return POLLIN | POLLRDNORM;
2223 return 0;
2224 }
2225
2226 static int ec_read16(u8 addr, u16 *value)
2227 {
2228 u8 val_lb, val_hb;
2229 if (ec_read(addr, &val_lb))
2230 return -1;
2231 if (ec_read(addr + 1, &val_hb))
2232 return -1;
2233 *value = val_lb | (val_hb << 8);
2234 return 0;
2235 }
2236
2237 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2238 unsigned long arg)
2239 {
2240 int ret = 0;
2241 void __user *argp = (void __user *)arg;
2242 u8 val8;
2243 u16 val16;
2244 int value;
2245
2246 mutex_lock(&spic_dev.lock);
2247 switch (cmd) {
2248 case SONYPI_IOCGBRT:
2249 if (sony_backlight_device == NULL) {
2250 ret = -EIO;
2251 break;
2252 }
2253 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2254 ret = -EIO;
2255 break;
2256 }
2257 val8 = ((value & 0xff) - 1) << 5;
2258 if (copy_to_user(argp, &val8, sizeof(val8)))
2259 ret = -EFAULT;
2260 break;
2261 case SONYPI_IOCSBRT:
2262 if (sony_backlight_device == NULL) {
2263 ret = -EIO;
2264 break;
2265 }
2266 if (copy_from_user(&val8, argp, sizeof(val8))) {
2267 ret = -EFAULT;
2268 break;
2269 }
2270 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2271 (val8 >> 5) + 1, NULL)) {
2272 ret = -EIO;
2273 break;
2274 }
2275 /* sync the backlight device status */
2276 sony_backlight_device->props.brightness =
2277 sony_backlight_get_brightness(sony_backlight_device);
2278 break;
2279 case SONYPI_IOCGBAT1CAP:
2280 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2281 ret = -EIO;
2282 break;
2283 }
2284 if (copy_to_user(argp, &val16, sizeof(val16)))
2285 ret = -EFAULT;
2286 break;
2287 case SONYPI_IOCGBAT1REM:
2288 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2289 ret = -EIO;
2290 break;
2291 }
2292 if (copy_to_user(argp, &val16, sizeof(val16)))
2293 ret = -EFAULT;
2294 break;
2295 case SONYPI_IOCGBAT2CAP:
2296 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2297 ret = -EIO;
2298 break;
2299 }
2300 if (copy_to_user(argp, &val16, sizeof(val16)))
2301 ret = -EFAULT;
2302 break;
2303 case SONYPI_IOCGBAT2REM:
2304 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2305 ret = -EIO;
2306 break;
2307 }
2308 if (copy_to_user(argp, &val16, sizeof(val16)))
2309 ret = -EFAULT;
2310 break;
2311 case SONYPI_IOCGBATFLAGS:
2312 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2313 ret = -EIO;
2314 break;
2315 }
2316 val8 &= 0x07;
2317 if (copy_to_user(argp, &val8, sizeof(val8)))
2318 ret = -EFAULT;
2319 break;
2320 case SONYPI_IOCGBLUE:
2321 val8 = spic_dev.bluetooth_power;
2322 if (copy_to_user(argp, &val8, sizeof(val8)))
2323 ret = -EFAULT;
2324 break;
2325 case SONYPI_IOCSBLUE:
2326 if (copy_from_user(&val8, argp, sizeof(val8))) {
2327 ret = -EFAULT;
2328 break;
2329 }
2330 __sony_pic_set_bluetoothpower(val8);
2331 break;
2332 /* FAN Controls */
2333 case SONYPI_IOCGFAN:
2334 if (sony_pic_get_fanspeed(&val8)) {
2335 ret = -EIO;
2336 break;
2337 }
2338 if (copy_to_user(argp, &val8, sizeof(val8)))
2339 ret = -EFAULT;
2340 break;
2341 case SONYPI_IOCSFAN:
2342 if (copy_from_user(&val8, argp, sizeof(val8))) {
2343 ret = -EFAULT;
2344 break;
2345 }
2346 if (sony_pic_set_fanspeed(val8))
2347 ret = -EIO;
2348 break;
2349 /* GET Temperature (useful under APM) */
2350 case SONYPI_IOCGTEMP:
2351 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2352 ret = -EIO;
2353 break;
2354 }
2355 if (copy_to_user(argp, &val8, sizeof(val8)))
2356 ret = -EFAULT;
2357 break;
2358 default:
2359 ret = -EINVAL;
2360 }
2361 mutex_unlock(&spic_dev.lock);
2362 return ret;
2363 }
2364
2365 static const struct file_operations sonypi_misc_fops = {
2366 .owner = THIS_MODULE,
2367 .read = sonypi_misc_read,
2368 .poll = sonypi_misc_poll,
2369 .open = sonypi_misc_open,
2370 .release = sonypi_misc_release,
2371 .fasync = sonypi_misc_fasync,
2372 .unlocked_ioctl = sonypi_misc_ioctl,
2373 .llseek = noop_llseek,
2374 };
2375
2376 static struct miscdevice sonypi_misc_device = {
2377 .minor = MISC_DYNAMIC_MINOR,
2378 .name = "sonypi",
2379 .fops = &sonypi_misc_fops,
2380 };
2381
2382 static void sonypi_compat_report_event(u8 event)
2383 {
2384 kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2385 sizeof(event), &sonypi_compat.fifo_lock);
2386 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2387 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2388 }
2389
2390 static int sonypi_compat_init(void)
2391 {
2392 int error;
2393
2394 spin_lock_init(&sonypi_compat.fifo_lock);
2395 error =
2396 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2397 if (error) {
2398 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2399 return error;
2400 }
2401
2402 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2403
2404 if (minor != -1)
2405 sonypi_misc_device.minor = minor;
2406 error = misc_register(&sonypi_misc_device);
2407 if (error) {
2408 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2409 goto err_free_kfifo;
2410 }
2411 if (minor == -1)
2412 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2413 sonypi_misc_device.minor);
2414
2415 return 0;
2416
2417 err_free_kfifo:
2418 kfifo_free(&sonypi_compat.fifo);
2419 return error;
2420 }
2421
2422 static void sonypi_compat_exit(void)
2423 {
2424 misc_deregister(&sonypi_misc_device);
2425 kfifo_free(&sonypi_compat.fifo);
2426 }
2427 #else
2428 static int sonypi_compat_init(void) { return 0; }
2429 static void sonypi_compat_exit(void) { }
2430 static void sonypi_compat_report_event(u8 event) { }
2431 #endif /* CONFIG_SONYPI_COMPAT */
2432
2433 /*
2434 * ACPI callbacks
2435 */
2436 static acpi_status
2437 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2438 {
2439 u32 i;
2440 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2441
2442 switch (resource->type) {
2443 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2444 {
2445 /* start IO enumeration */
2446 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2447 if (!ioport)
2448 return AE_ERROR;
2449
2450 list_add(&ioport->list, &dev->ioports);
2451 return AE_OK;
2452 }
2453
2454 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2455 /* end IO enumeration */
2456 return AE_OK;
2457
2458 case ACPI_RESOURCE_TYPE_IRQ:
2459 {
2460 struct acpi_resource_irq *p = &resource->data.irq;
2461 struct sony_pic_irq *interrupt = NULL;
2462 if (!p || !p->interrupt_count) {
2463 /*
2464 * IRQ descriptors may have no IRQ# bits set,
2465 * particularly those those w/ _STA disabled
2466 */
2467 dprintk("Blank IRQ resource\n");
2468 return AE_OK;
2469 }
2470 for (i = 0; i < p->interrupt_count; i++) {
2471 if (!p->interrupts[i]) {
2472 printk(KERN_WARNING DRV_PFX
2473 "Invalid IRQ %d\n",
2474 p->interrupts[i]);
2475 continue;
2476 }
2477 interrupt = kzalloc(sizeof(*interrupt),
2478 GFP_KERNEL);
2479 if (!interrupt)
2480 return AE_ERROR;
2481
2482 list_add(&interrupt->list, &dev->interrupts);
2483 interrupt->irq.triggering = p->triggering;
2484 interrupt->irq.polarity = p->polarity;
2485 interrupt->irq.sharable = p->sharable;
2486 interrupt->irq.interrupt_count = 1;
2487 interrupt->irq.interrupts[0] = p->interrupts[i];
2488 }
2489 return AE_OK;
2490 }
2491 case ACPI_RESOURCE_TYPE_IO:
2492 {
2493 struct acpi_resource_io *io = &resource->data.io;
2494 struct sony_pic_ioport *ioport =
2495 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2496 if (!io) {
2497 dprintk("Blank IO resource\n");
2498 return AE_OK;
2499 }
2500
2501 if (!ioport->io1.minimum) {
2502 memcpy(&ioport->io1, io, sizeof(*io));
2503 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2504 ioport->io1.address_length);
2505 }
2506 else if (!ioport->io2.minimum) {
2507 memcpy(&ioport->io2, io, sizeof(*io));
2508 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2509 ioport->io2.address_length);
2510 }
2511 else {
2512 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2513 return AE_ERROR;
2514 }
2515 return AE_OK;
2516 }
2517 default:
2518 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2519 resource->type);
2520
2521 case ACPI_RESOURCE_TYPE_END_TAG:
2522 return AE_OK;
2523 }
2524 return AE_CTRL_TERMINATE;
2525 }
2526
2527 static int sony_pic_possible_resources(struct acpi_device *device)
2528 {
2529 int result = 0;
2530 acpi_status status = AE_OK;
2531
2532 if (!device)
2533 return -EINVAL;
2534
2535 /* get device status */
2536 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2537 dprintk("Evaluating _STA\n");
2538 result = acpi_bus_get_status(device);
2539 if (result) {
2540 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2541 goto end;
2542 }
2543
2544 if (!device->status.enabled)
2545 dprintk("Device disabled\n");
2546 else
2547 dprintk("Device enabled\n");
2548
2549 /*
2550 * Query and parse 'method'
2551 */
2552 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2553 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2554 sony_pic_read_possible_resource, &spic_dev);
2555 if (ACPI_FAILURE(status)) {
2556 printk(KERN_WARNING DRV_PFX
2557 "Failure evaluating %s\n",
2558 METHOD_NAME__PRS);
2559 result = -ENODEV;
2560 }
2561 end:
2562 return result;
2563 }
2564
2565 /*
2566 * Disable the spic device by calling its _DIS method
2567 */
2568 static int sony_pic_disable(struct acpi_device *device)
2569 {
2570 acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2571 NULL);
2572
2573 if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2574 return -ENXIO;
2575
2576 dprintk("Device disabled\n");
2577 return 0;
2578 }
2579
2580
2581 /*
2582 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2583 *
2584 * Call _SRS to set current resources
2585 */
2586 static int sony_pic_enable(struct acpi_device *device,
2587 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2588 {
2589 acpi_status status;
2590 int result = 0;
2591 /* Type 1 resource layout is:
2592 * IO
2593 * IO
2594 * IRQNoFlags
2595 * End
2596 *
2597 * Type 2 and 3 resource layout is:
2598 * IO
2599 * IRQNoFlags
2600 * End
2601 */
2602 struct {
2603 struct acpi_resource res1;
2604 struct acpi_resource res2;
2605 struct acpi_resource res3;
2606 struct acpi_resource res4;
2607 } *resource;
2608 struct acpi_buffer buffer = { 0, NULL };
2609
2610 if (!ioport || !irq)
2611 return -EINVAL;
2612
2613 /* init acpi_buffer */
2614 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2615 if (!resource)
2616 return -ENOMEM;
2617
2618 buffer.length = sizeof(*resource) + 1;
2619 buffer.pointer = resource;
2620
2621 /* setup Type 1 resources */
2622 if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2623
2624 /* setup io resources */
2625 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2626 resource->res1.length = sizeof(struct acpi_resource);
2627 memcpy(&resource->res1.data.io, &ioport->io1,
2628 sizeof(struct acpi_resource_io));
2629
2630 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2631 resource->res2.length = sizeof(struct acpi_resource);
2632 memcpy(&resource->res2.data.io, &ioport->io2,
2633 sizeof(struct acpi_resource_io));
2634
2635 /* setup irq resource */
2636 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2637 resource->res3.length = sizeof(struct acpi_resource);
2638 memcpy(&resource->res3.data.irq, &irq->irq,
2639 sizeof(struct acpi_resource_irq));
2640 /* we requested a shared irq */
2641 resource->res3.data.irq.sharable = ACPI_SHARED;
2642
2643 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2644
2645 }
2646 /* setup Type 2/3 resources */
2647 else {
2648 /* setup io resource */
2649 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2650 resource->res1.length = sizeof(struct acpi_resource);
2651 memcpy(&resource->res1.data.io, &ioport->io1,
2652 sizeof(struct acpi_resource_io));
2653
2654 /* setup irq resource */
2655 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2656 resource->res2.length = sizeof(struct acpi_resource);
2657 memcpy(&resource->res2.data.irq, &irq->irq,
2658 sizeof(struct acpi_resource_irq));
2659 /* we requested a shared irq */
2660 resource->res2.data.irq.sharable = ACPI_SHARED;
2661
2662 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2663 }
2664
2665 /* Attempt to set the resource */
2666 dprintk("Evaluating _SRS\n");
2667 status = acpi_set_current_resources(device->handle, &buffer);
2668
2669 /* check for total failure */
2670 if (ACPI_FAILURE(status)) {
2671 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2672 result = -ENODEV;
2673 goto end;
2674 }
2675
2676 /* Necessary device initializations calls (from sonypi) */
2677 sony_pic_call1(0x82);
2678 sony_pic_call2(0x81, 0xff);
2679 sony_pic_call1(compat ? 0x92 : 0x82);
2680
2681 end:
2682 kfree(resource);
2683 return result;
2684 }
2685
2686 /*****************
2687 *
2688 * ISR: some event is available
2689 *
2690 *****************/
2691 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2692 {
2693 int i, j;
2694 u8 ev = 0;
2695 u8 data_mask = 0;
2696 u8 device_event = 0;
2697
2698 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2699
2700 ev = inb_p(dev->cur_ioport->io1.minimum);
2701 if (dev->cur_ioport->io2.minimum)
2702 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2703 else
2704 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2705 dev->evport_offset);
2706
2707 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2708 ev, data_mask, dev->cur_ioport->io1.minimum,
2709 dev->evport_offset);
2710
2711 if (ev == 0x00 || ev == 0xff)
2712 return IRQ_HANDLED;
2713
2714 for (i = 0; dev->event_types[i].mask; i++) {
2715
2716 if ((data_mask & dev->event_types[i].data) !=
2717 dev->event_types[i].data)
2718 continue;
2719
2720 if (!(mask & dev->event_types[i].mask))
2721 continue;
2722
2723 for (j = 0; dev->event_types[i].events[j].event; j++) {
2724 if (ev == dev->event_types[i].events[j].data) {
2725 device_event =
2726 dev->event_types[i].events[j].event;
2727 goto found;
2728 }
2729 }
2730 }
2731 /* Still not able to decode the event try to pass
2732 * it over to the minidriver
2733 */
2734 if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
2735 return IRQ_HANDLED;
2736
2737 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2738 ev, data_mask, dev->cur_ioport->io1.minimum,
2739 dev->evport_offset);
2740 return IRQ_HANDLED;
2741
2742 found:
2743 sony_laptop_report_input_event(device_event);
2744 acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2745 sonypi_compat_report_event(device_event);
2746
2747 return IRQ_HANDLED;
2748 }
2749
2750 /*****************
2751 *
2752 * ACPI driver
2753 *
2754 *****************/
2755 static int sony_pic_remove(struct acpi_device *device, int type)
2756 {
2757 struct sony_pic_ioport *io, *tmp_io;
2758 struct sony_pic_irq *irq, *tmp_irq;
2759
2760 if (sony_pic_disable(device)) {
2761 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2762 return -ENXIO;
2763 }
2764
2765 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2766 release_region(spic_dev.cur_ioport->io1.minimum,
2767 spic_dev.cur_ioport->io1.address_length);
2768 if (spic_dev.cur_ioport->io2.minimum)
2769 release_region(spic_dev.cur_ioport->io2.minimum,
2770 spic_dev.cur_ioport->io2.address_length);
2771
2772 sonypi_compat_exit();
2773
2774 sony_laptop_remove_input();
2775
2776 /* pf attrs */
2777 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2778 sony_pf_remove();
2779
2780 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2781 list_del(&io->list);
2782 kfree(io);
2783 }
2784 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2785 list_del(&irq->list);
2786 kfree(irq);
2787 }
2788 spic_dev.cur_ioport = NULL;
2789 spic_dev.cur_irq = NULL;
2790
2791 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2792 return 0;
2793 }
2794
2795 static int sony_pic_add(struct acpi_device *device)
2796 {
2797 int result;
2798 struct sony_pic_ioport *io, *tmp_io;
2799 struct sony_pic_irq *irq, *tmp_irq;
2800
2801 printk(KERN_INFO DRV_PFX "%s v%s.\n",
2802 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2803
2804 spic_dev.acpi_dev = device;
2805 strcpy(acpi_device_class(device), "sony/hotkey");
2806 sony_pic_detect_device_type(&spic_dev);
2807 mutex_init(&spic_dev.lock);
2808
2809 /* read _PRS resources */
2810 result = sony_pic_possible_resources(device);
2811 if (result) {
2812 printk(KERN_ERR DRV_PFX
2813 "Unable to read possible resources.\n");
2814 goto err_free_resources;
2815 }
2816
2817 /* setup input devices and helper fifo */
2818 result = sony_laptop_setup_input(device);
2819 if (result) {
2820 printk(KERN_ERR DRV_PFX
2821 "Unable to create input devices.\n");
2822 goto err_free_resources;
2823 }
2824
2825 if (sonypi_compat_init())
2826 goto err_remove_input;
2827
2828 /* request io port */
2829 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2830 if (request_region(io->io1.minimum, io->io1.address_length,
2831 "Sony Programable I/O Device")) {
2832 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2833 io->io1.minimum, io->io1.maximum,
2834 io->io1.address_length);
2835 /* Type 1 have 2 ioports */
2836 if (io->io2.minimum) {
2837 if (request_region(io->io2.minimum,
2838 io->io2.address_length,
2839 "Sony Programable I/O Device")) {
2840 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2841 io->io2.minimum, io->io2.maximum,
2842 io->io2.address_length);
2843 spic_dev.cur_ioport = io;
2844 break;
2845 }
2846 else {
2847 dprintk("Unable to get I/O port2: "
2848 "0x%.4x (0x%.4x) + 0x%.2x\n",
2849 io->io2.minimum, io->io2.maximum,
2850 io->io2.address_length);
2851 release_region(io->io1.minimum,
2852 io->io1.address_length);
2853 }
2854 }
2855 else {
2856 spic_dev.cur_ioport = io;
2857 break;
2858 }
2859 }
2860 }
2861 if (!spic_dev.cur_ioport) {
2862 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2863 result = -ENODEV;
2864 goto err_remove_compat;
2865 }
2866
2867 /* request IRQ */
2868 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2869 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2870 IRQF_DISABLED, "sony-laptop", &spic_dev)) {
2871 dprintk("IRQ: %d - triggering: %d - "
2872 "polarity: %d - shr: %d\n",
2873 irq->irq.interrupts[0],
2874 irq->irq.triggering,
2875 irq->irq.polarity,
2876 irq->irq.sharable);
2877 spic_dev.cur_irq = irq;
2878 break;
2879 }
2880 }
2881 if (!spic_dev.cur_irq) {
2882 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2883 result = -ENODEV;
2884 goto err_release_region;
2885 }
2886
2887 /* set resource status _SRS */
2888 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2889 if (result) {
2890 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2891 goto err_free_irq;
2892 }
2893
2894 spic_dev.bluetooth_power = -1;
2895 /* create device attributes */
2896 result = sony_pf_add();
2897 if (result)
2898 goto err_disable_device;
2899
2900 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2901 if (result)
2902 goto err_remove_pf;
2903
2904 return 0;
2905
2906 err_remove_pf:
2907 sony_pf_remove();
2908
2909 err_disable_device:
2910 sony_pic_disable(device);
2911
2912 err_free_irq:
2913 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2914
2915 err_release_region:
2916 release_region(spic_dev.cur_ioport->io1.minimum,
2917 spic_dev.cur_ioport->io1.address_length);
2918 if (spic_dev.cur_ioport->io2.minimum)
2919 release_region(spic_dev.cur_ioport->io2.minimum,
2920 spic_dev.cur_ioport->io2.address_length);
2921
2922 err_remove_compat:
2923 sonypi_compat_exit();
2924
2925 err_remove_input:
2926 sony_laptop_remove_input();
2927
2928 err_free_resources:
2929 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2930 list_del(&io->list);
2931 kfree(io);
2932 }
2933 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2934 list_del(&irq->list);
2935 kfree(irq);
2936 }
2937 spic_dev.cur_ioport = NULL;
2938 spic_dev.cur_irq = NULL;
2939
2940 return result;
2941 }
2942
2943 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2944 {
2945 if (sony_pic_disable(device))
2946 return -ENXIO;
2947 return 0;
2948 }
2949
2950 static int sony_pic_resume(struct acpi_device *device)
2951 {
2952 sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2953 return 0;
2954 }
2955
2956 static const struct acpi_device_id sony_pic_device_ids[] = {
2957 {SONY_PIC_HID, 0},
2958 {"", 0},
2959 };
2960
2961 static struct acpi_driver sony_pic_driver = {
2962 .name = SONY_PIC_DRIVER_NAME,
2963 .class = SONY_PIC_CLASS,
2964 .ids = sony_pic_device_ids,
2965 .owner = THIS_MODULE,
2966 .ops = {
2967 .add = sony_pic_add,
2968 .remove = sony_pic_remove,
2969 .suspend = sony_pic_suspend,
2970 .resume = sony_pic_resume,
2971 },
2972 };
2973
2974 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2975 {
2976 .ident = "Sony Vaio",
2977 .matches = {
2978 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2979 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2980 },
2981 },
2982 {
2983 .ident = "Sony Vaio",
2984 .matches = {
2985 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2986 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2987 },
2988 },
2989 { }
2990 };
2991
2992 static int __init sony_laptop_init(void)
2993 {
2994 int result;
2995
2996 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2997 result = acpi_bus_register_driver(&sony_pic_driver);
2998 if (result) {
2999 printk(KERN_ERR DRV_PFX
3000 "Unable to register SPIC driver.");
3001 goto out;
3002 }
3003 spic_drv_registered = 1;
3004 }
3005
3006 result = acpi_bus_register_driver(&sony_nc_driver);
3007 if (result) {
3008 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
3009 goto out_unregister_pic;
3010 }
3011
3012 return 0;
3013
3014 out_unregister_pic:
3015 if (spic_drv_registered)
3016 acpi_bus_unregister_driver(&sony_pic_driver);
3017 out:
3018 return result;
3019 }
3020
3021 static void __exit sony_laptop_exit(void)
3022 {
3023 acpi_bus_unregister_driver(&sony_nc_driver);
3024 if (spic_drv_registered)
3025 acpi_bus_unregister_driver(&sony_pic_driver);
3026 }
3027
3028 module_init(sony_laptop_init);
3029 module_exit(sony_laptop_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree