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Avoid beyond bounds copy while caching ACL
[zen-stable.git] / drivers / platform / x86 / sony-laptop.c
blob40c470507e50a3ab924351631382ca77e8677eb9
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
46
47 #include <linux/kernel.h>
48 #include <linux/module.h>
49 #include <linux/moduleparam.h>
50 #include <linux/init.h>
51 #include <linux/types.h>
52 #include <linux/backlight.h>
53 #include <linux/platform_device.h>
54 #include <linux/err.h>
55 #include <linux/dmi.h>
56 #include <linux/pci.h>
57 #include <linux/interrupt.h>
58 #include <linux/delay.h>
59 #include <linux/input.h>
60 #include <linux/kfifo.h>
61 #include <linux/workqueue.h>
62 #include <linux/acpi.h>
63 #include <linux/slab.h>
64 #include <acpi/acpi_drivers.h>
65 #include <acpi/acpi_bus.h>
66 #include <asm/uaccess.h>
67 #include <linux/sonypi.h>
68 #include <linux/sony-laptop.h>
69 #include <linux/rfkill.h>
70 #ifdef CONFIG_SONYPI_COMPAT
71 #include <linux/poll.h>
72 #include <linux/miscdevice.h>
73 #endif
74
75 #define dprintk(fmt, ...) \
76 do { \
77 if (debug) \
78 pr_warn(fmt, ##__VA_ARGS__); \
79 } while (0)
80
81 #define SONY_LAPTOP_DRIVER_VERSION "0.6"
82
83 #define SONY_NC_CLASS "sony-nc"
84 #define SONY_NC_HID "SNY5001"
85 #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
86
87 #define SONY_PIC_CLASS "sony-pic"
88 #define SONY_PIC_HID "SNY6001"
89 #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
90
91 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
92 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
93 MODULE_LICENSE("GPL");
94 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
95
96 static int debug;
97 module_param(debug, int, 0);
98 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
99 "the development of this driver");
100
101 static int no_spic; /* = 0 */
102 module_param(no_spic, int, 0444);
103 MODULE_PARM_DESC(no_spic,
104 "set this if you don't want to enable the SPIC device");
105
106 static int compat; /* = 0 */
107 module_param(compat, int, 0444);
108 MODULE_PARM_DESC(compat,
109 "set this if you want to enable backward compatibility mode");
110
111 static unsigned long mask = 0xffffffff;
112 module_param(mask, ulong, 0644);
113 MODULE_PARM_DESC(mask,
114 "set this to the mask of event you want to enable (see doc)");
115
116 static int camera; /* = 0 */
117 module_param(camera, int, 0444);
118 MODULE_PARM_DESC(camera,
119 "set this to 1 to enable Motion Eye camera controls "
120 "(only use it if you have a C1VE or C1VN model)");
121
122 #ifdef CONFIG_SONYPI_COMPAT
123 static int minor = -1;
124 module_param(minor, int, 0);
125 MODULE_PARM_DESC(minor,
126 "minor number of the misc device for the SPIC compatibility code, "
127 "default is -1 (automatic)");
128 #endif
129
130 static int kbd_backlight = 1;
131 module_param(kbd_backlight, int, 0444);
132 MODULE_PARM_DESC(kbd_backlight,
133 "set this to 0 to disable keyboard backlight, "
134 "1 to enable it (default: 0)");
135
136 static int kbd_backlight_timeout; /* = 0 */
137 module_param(kbd_backlight_timeout, int, 0444);
138 MODULE_PARM_DESC(kbd_backlight_timeout,
139 "set this to 0 to set the default 10 seconds timeout, "
140 "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
141 "(default: 0)");
142
143 static void sony_nc_kbd_backlight_resume(void);
144
145 enum sony_nc_rfkill {
146 SONY_WIFI,
147 SONY_BLUETOOTH,
148 SONY_WWAN,
149 SONY_WIMAX,
150 N_SONY_RFKILL,
151 };
152
153 static int sony_rfkill_handle;
154 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
155 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
156 static void sony_nc_rfkill_update(void);
157
158 /*********** Input Devices ***********/
159
160 #define SONY_LAPTOP_BUF_SIZE 128
161 struct sony_laptop_input_s {
162 atomic_t users;
163 struct input_dev *jog_dev;
164 struct input_dev *key_dev;
165 struct kfifo fifo;
166 spinlock_t fifo_lock;
167 struct timer_list release_key_timer;
168 };
169
170 static struct sony_laptop_input_s sony_laptop_input = {
171 .users = ATOMIC_INIT(0),
172 };
173
174 struct sony_laptop_keypress {
175 struct input_dev *dev;
176 int key;
177 };
178
179 /* Correspondance table between sonypi events
180 * and input layer indexes in the keymap
181 */
182 static int sony_laptop_input_index[] = {
183 -1, /* 0 no event */
184 -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */
185 -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */
186 -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
187 -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
188 -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */
189 -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */
190 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */
191 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */
192 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
193 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
194 4, /* 11 SONYPI_EVENT_FNKEY_ESC */
195 5, /* 12 SONYPI_EVENT_FNKEY_F1 */
196 6, /* 13 SONYPI_EVENT_FNKEY_F2 */
197 7, /* 14 SONYPI_EVENT_FNKEY_F3 */
198 8, /* 15 SONYPI_EVENT_FNKEY_F4 */
199 9, /* 16 SONYPI_EVENT_FNKEY_F5 */
200 10, /* 17 SONYPI_EVENT_FNKEY_F6 */
201 11, /* 18 SONYPI_EVENT_FNKEY_F7 */
202 12, /* 19 SONYPI_EVENT_FNKEY_F8 */
203 13, /* 20 SONYPI_EVENT_FNKEY_F9 */
204 14, /* 21 SONYPI_EVENT_FNKEY_F10 */
205 15, /* 22 SONYPI_EVENT_FNKEY_F11 */
206 16, /* 23 SONYPI_EVENT_FNKEY_F12 */
207 17, /* 24 SONYPI_EVENT_FNKEY_1 */
208 18, /* 25 SONYPI_EVENT_FNKEY_2 */
209 19, /* 26 SONYPI_EVENT_FNKEY_D */
210 20, /* 27 SONYPI_EVENT_FNKEY_E */
211 21, /* 28 SONYPI_EVENT_FNKEY_F */
212 22, /* 29 SONYPI_EVENT_FNKEY_S */
213 23, /* 30 SONYPI_EVENT_FNKEY_B */
214 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
215 25, /* 32 SONYPI_EVENT_PKEY_P1 */
216 26, /* 33 SONYPI_EVENT_PKEY_P2 */
217 27, /* 34 SONYPI_EVENT_PKEY_P3 */
218 28, /* 35 SONYPI_EVENT_BACK_PRESSED */
219 -1, /* 36 SONYPI_EVENT_LID_CLOSED */
220 -1, /* 37 SONYPI_EVENT_LID_OPENED */
221 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */
222 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
223 31, /* 40 SONYPI_EVENT_HELP_PRESSED */
224 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */
225 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
226 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
227 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
228 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
229 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
230 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
231 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
232 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
233 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */
234 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
235 43, /* 52 SONYPI_EVENT_MEYE_FACE */
236 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
237 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
238 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
239 -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
240 -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */
241 -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */
242 -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */
243 47, /* 60 SONYPI_EVENT_WIRELESS_ON */
244 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */
245 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
246 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
247 51, /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
248 52, /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
249 53, /* 66 SONYPI_EVENT_PKEY_P4 */
250 54, /* 67 SONYPI_EVENT_PKEY_P5 */
251 55, /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
252 56, /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
253 57, /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
254 -1, /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
255 58, /* 72 SONYPI_EVENT_MEDIA_PRESSED */
256 59, /* 72 SONYPI_EVENT_VENDOR_PRESSED */
257 };
258
259 static int sony_laptop_input_keycode_map[] = {
260 KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
261 KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
262 KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
263 KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
264 KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
265 KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
266 KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
267 KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
268 KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
269 KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
270 KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
271 KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
272 KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
273 KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
274 KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
275 KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
276 KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
277 KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */
278 KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */
279 KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
280 KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
281 KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
282 KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
283 KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
284 KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
285 KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
286 KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
287 KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
288 KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
289 KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
290 KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
291 KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
292 KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
293 KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
294 KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
295 KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
296 KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
297 KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
298 KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
299 KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
300 KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
301 KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
302 BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
303 KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
304 KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
305 KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
306 KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
307 KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
308 KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
309 KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
310 KEY_ZOOMOUT, /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
311 KEY_EJECTCD, /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
312 KEY_F13, /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
313 KEY_PROG4, /* 53 SONYPI_EVENT_PKEY_P4 */
314 KEY_F14, /* 54 SONYPI_EVENT_PKEY_P5 */
315 KEY_F15, /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
316 KEY_VOLUMEUP, /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
317 KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
318 KEY_MEDIA, /* 58 SONYPI_EVENT_MEDIA_PRESSED */
319 KEY_VENDOR, /* 59 SONYPI_EVENT_VENDOR_PRESSED */
320 };
321
322 /* release buttons after a short delay if pressed */
323 static void do_sony_laptop_release_key(unsigned long unused)
324 {
325 struct sony_laptop_keypress kp;
326 unsigned long flags;
327
328 spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
329
330 if (kfifo_out(&sony_laptop_input.fifo,
331 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
332 input_report_key(kp.dev, kp.key, 0);
333 input_sync(kp.dev);
334 }
335
336 /* If there is something in the fifo schedule next release. */
337 if (kfifo_len(&sony_laptop_input.fifo) != 0)
338 mod_timer(&sony_laptop_input.release_key_timer,
339 jiffies + msecs_to_jiffies(10));
340
341 spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
342 }
343
344 /* forward event to the input subsystem */
345 static void sony_laptop_report_input_event(u8 event)
346 {
347 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
348 struct input_dev *key_dev = sony_laptop_input.key_dev;
349 struct sony_laptop_keypress kp = { NULL };
350
351 if (event == SONYPI_EVENT_FNKEY_RELEASED ||
352 event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
353 /* Nothing, not all VAIOs generate this event */
354 return;
355 }
356
357 /* report events */
358 switch (event) {
359 /* jog_dev events */
360 case SONYPI_EVENT_JOGDIAL_UP:
361 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
362 input_report_rel(jog_dev, REL_WHEEL, 1);
363 input_sync(jog_dev);
364 return;
365
366 case SONYPI_EVENT_JOGDIAL_DOWN:
367 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
368 input_report_rel(jog_dev, REL_WHEEL, -1);
369 input_sync(jog_dev);
370 return;
371
372 /* key_dev events */
373 case SONYPI_EVENT_JOGDIAL_PRESSED:
374 kp.key = BTN_MIDDLE;
375 kp.dev = jog_dev;
376 break;
377
378 default:
379 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
380 dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
381 break;
382 }
383 if (sony_laptop_input_index[event] != -1) {
384 kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
385 if (kp.key != KEY_UNKNOWN)
386 kp.dev = key_dev;
387 }
388 break;
389 }
390
391 if (kp.dev) {
392 input_report_key(kp.dev, kp.key, 1);
393 /* we emit the scancode so we can always remap the key */
394 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
395 input_sync(kp.dev);
396
397 /* schedule key release */
398 kfifo_in_locked(&sony_laptop_input.fifo,
399 (unsigned char *)&kp, sizeof(kp),
400 &sony_laptop_input.fifo_lock);
401 mod_timer(&sony_laptop_input.release_key_timer,
402 jiffies + msecs_to_jiffies(10));
403 } else
404 dprintk("unknown input event %.2x\n", event);
405 }
406
407 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
408 {
409 struct input_dev *jog_dev;
410 struct input_dev *key_dev;
411 int i;
412 int error;
413
414 /* don't run again if already initialized */
415 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
416 return 0;
417
418 /* kfifo */
419 spin_lock_init(&sony_laptop_input.fifo_lock);
420 error = kfifo_alloc(&sony_laptop_input.fifo,
421 SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
422 if (error) {
423 pr_err("kfifo_alloc failed\n");
424 goto err_dec_users;
425 }
426
427 setup_timer(&sony_laptop_input.release_key_timer,
428 do_sony_laptop_release_key, 0);
429
430 /* input keys */
431 key_dev = input_allocate_device();
432 if (!key_dev) {
433 error = -ENOMEM;
434 goto err_free_kfifo;
435 }
436
437 key_dev->name = "Sony Vaio Keys";
438 key_dev->id.bustype = BUS_ISA;
439 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
440 key_dev->dev.parent = &acpi_device->dev;
441
442 /* Initialize the Input Drivers: special keys */
443 input_set_capability(key_dev, EV_MSC, MSC_SCAN);
444
445 __set_bit(EV_KEY, key_dev->evbit);
446 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
447 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
448 key_dev->keycode = &sony_laptop_input_keycode_map;
449 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
450 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
451 __clear_bit(KEY_RESERVED, key_dev->keybit);
452
453 error = input_register_device(key_dev);
454 if (error)
455 goto err_free_keydev;
456
457 sony_laptop_input.key_dev = key_dev;
458
459 /* jogdial */
460 jog_dev = input_allocate_device();
461 if (!jog_dev) {
462 error = -ENOMEM;
463 goto err_unregister_keydev;
464 }
465
466 jog_dev->name = "Sony Vaio Jogdial";
467 jog_dev->id.bustype = BUS_ISA;
468 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
469 key_dev->dev.parent = &acpi_device->dev;
470
471 input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
472 input_set_capability(jog_dev, EV_REL, REL_WHEEL);
473
474 error = input_register_device(jog_dev);
475 if (error)
476 goto err_free_jogdev;
477
478 sony_laptop_input.jog_dev = jog_dev;
479
480 return 0;
481
482 err_free_jogdev:
483 input_free_device(jog_dev);
484
485 err_unregister_keydev:
486 input_unregister_device(key_dev);
487 /* to avoid kref underflow below at input_free_device */
488 key_dev = NULL;
489
490 err_free_keydev:
491 input_free_device(key_dev);
492
493 err_free_kfifo:
494 kfifo_free(&sony_laptop_input.fifo);
495
496 err_dec_users:
497 atomic_dec(&sony_laptop_input.users);
498 return error;
499 }
500
501 static void sony_laptop_remove_input(void)
502 {
503 struct sony_laptop_keypress kp = { NULL };
504
505 /* Cleanup only after the last user has gone */
506 if (!atomic_dec_and_test(&sony_laptop_input.users))
507 return;
508
509 del_timer_sync(&sony_laptop_input.release_key_timer);
510
511 /*
512 * Generate key-up events for remaining keys. Note that we don't
513 * need locking since nobody is adding new events to the kfifo.
514 */
515 while (kfifo_out(&sony_laptop_input.fifo,
516 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
517 input_report_key(kp.dev, kp.key, 0);
518 input_sync(kp.dev);
519 }
520
521 /* destroy input devs */
522 input_unregister_device(sony_laptop_input.key_dev);
523 sony_laptop_input.key_dev = NULL;
524
525 if (sony_laptop_input.jog_dev) {
526 input_unregister_device(sony_laptop_input.jog_dev);
527 sony_laptop_input.jog_dev = NULL;
528 }
529
530 kfifo_free(&sony_laptop_input.fifo);
531 }
532
533 /*********** Platform Device ***********/
534
535 static atomic_t sony_pf_users = ATOMIC_INIT(0);
536 static struct platform_driver sony_pf_driver = {
537 .driver = {
538 .name = "sony-laptop",
539 .owner = THIS_MODULE,
540 }
541 };
542 static struct platform_device *sony_pf_device;
543
544 static int sony_pf_add(void)
545 {
546 int ret = 0;
547
548 /* don't run again if already initialized */
549 if (atomic_add_return(1, &sony_pf_users) > 1)
550 return 0;
551
552 ret = platform_driver_register(&sony_pf_driver);
553 if (ret)
554 goto out;
555
556 sony_pf_device = platform_device_alloc("sony-laptop", -1);
557 if (!sony_pf_device) {
558 ret = -ENOMEM;
559 goto out_platform_registered;
560 }
561
562 ret = platform_device_add(sony_pf_device);
563 if (ret)
564 goto out_platform_alloced;
565
566 return 0;
567
568 out_platform_alloced:
569 platform_device_put(sony_pf_device);
570 sony_pf_device = NULL;
571 out_platform_registered:
572 platform_driver_unregister(&sony_pf_driver);
573 out:
574 atomic_dec(&sony_pf_users);
575 return ret;
576 }
577
578 static void sony_pf_remove(void)
579 {
580 /* deregister only after the last user has gone */
581 if (!atomic_dec_and_test(&sony_pf_users))
582 return;
583
584 platform_device_unregister(sony_pf_device);
585 platform_driver_unregister(&sony_pf_driver);
586 }
587
588 /*********** SNC (SNY5001) Device ***********/
589
590 /* the device uses 1-based values, while the backlight subsystem uses
591 0-based values */
592 #define SONY_MAX_BRIGHTNESS 8
593
594 #define SNC_VALIDATE_IN 0
595 #define SNC_VALIDATE_OUT 1
596
597 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
598 char *);
599 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
600 const char *, size_t);
601 static int boolean_validate(const int, const int);
602 static int brightness_default_validate(const int, const int);
603
604 struct sony_nc_value {
605 char *name; /* name of the entry */
606 char **acpiget; /* names of the ACPI get function */
607 char **acpiset; /* names of the ACPI set function */
608 int (*validate)(const int, const int); /* input/output validation */
609 int value; /* current setting */
610 int valid; /* Has ever been set */
611 int debug; /* active only in debug mode ? */
612 struct device_attribute devattr; /* sysfs attribute */
613 };
614
615 #define SNC_HANDLE_NAMES(_name, _values...) \
616 static char *snc_##_name[] = { _values, NULL }
617
618 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
619 { \
620 .name = __stringify(_name), \
621 .acpiget = _getters, \
622 .acpiset = _setters, \
623 .validate = _validate, \
624 .debug = _debug, \
625 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
626 }
627
628 #define SNC_HANDLE_NULL { .name = NULL }
629
630 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
631
632 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
633 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
634
635 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
636 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
637
638 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
639 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
640
641 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
642 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
643
644 SNC_HANDLE_NAMES(lidstate_get, "GLID");
645
646 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
647 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
648
649 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
650 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
651
652 SNC_HANDLE_NAMES(PID_get, "GPID");
653
654 SNC_HANDLE_NAMES(CTR_get, "GCTR");
655 SNC_HANDLE_NAMES(CTR_set, "SCTR");
656
657 SNC_HANDLE_NAMES(PCR_get, "GPCR");
658 SNC_HANDLE_NAMES(PCR_set, "SPCR");
659
660 SNC_HANDLE_NAMES(CMI_get, "GCMI");
661 SNC_HANDLE_NAMES(CMI_set, "SCMI");
662
663 static struct sony_nc_value sony_nc_values[] = {
664 SNC_HANDLE(brightness_default, snc_brightness_def_get,
665 snc_brightness_def_set, brightness_default_validate, 0),
666 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
667 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
668 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
669 boolean_validate, 0),
670 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
671 boolean_validate, 1),
672 SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
673 boolean_validate, 0),
674 SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
675 boolean_validate, 0),
676 SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
677 boolean_validate, 0),
678 /* unknown methods */
679 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
680 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
681 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
682 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
683 SNC_HANDLE_NULL
684 };
685
686 static acpi_handle sony_nc_acpi_handle;
687 static struct acpi_device *sony_nc_acpi_device = NULL;
688
689 /*
690 * acpi_evaluate_object wrappers
691 */
692 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
693 {
694 struct acpi_buffer output;
695 union acpi_object out_obj;
696 acpi_status status;
697
698 output.length = sizeof(out_obj);
699 output.pointer = &out_obj;
700
701 status = acpi_evaluate_object(handle, name, NULL, &output);
702 if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
703 *result = out_obj.integer.value;
704 return 0;
705 }
706
707 pr_warn("acpi_callreadfunc failed\n");
708
709 return -1;
710 }
711
712 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
713 int *result)
714 {
715 struct acpi_object_list params;
716 union acpi_object in_obj;
717 struct acpi_buffer output;
718 union acpi_object out_obj;
719 acpi_status status;
720
721 params.count = 1;
722 params.pointer = &in_obj;
723 in_obj.type = ACPI_TYPE_INTEGER;
724 in_obj.integer.value = value;
725
726 output.length = sizeof(out_obj);
727 output.pointer = &out_obj;
728
729 status = acpi_evaluate_object(handle, name, &params, &output);
730 if (status == AE_OK) {
731 if (result != NULL) {
732 if (out_obj.type != ACPI_TYPE_INTEGER) {
733 pr_warn("acpi_evaluate_object bad return type\n");
734 return -1;
735 }
736 *result = out_obj.integer.value;
737 }
738 return 0;
739 }
740
741 pr_warn("acpi_evaluate_object failed\n");
742
743 return -1;
744 }
745
746 struct sony_nc_handles {
747 u16 cap[0x10];
748 struct device_attribute devattr;
749 };
750
751 static struct sony_nc_handles *handles;
752
753 static ssize_t sony_nc_handles_show(struct device *dev,
754 struct device_attribute *attr, char *buffer)
755 {
756 ssize_t len = 0;
757 int i;
758
759 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
760 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
761 handles->cap[i]);
762 }
763 len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
764
765 return len;
766 }
767
768 static int sony_nc_handles_setup(struct platform_device *pd)
769 {
770 int i;
771 int result;
772
773 handles = kzalloc(sizeof(*handles), GFP_KERNEL);
774 if (!handles)
775 return -ENOMEM;
776
777 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
778 if (!acpi_callsetfunc(sony_nc_acpi_handle,
779 "SN00", i + 0x20, &result)) {
780 dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
781 result, i);
782 handles->cap[i] = result;
783 }
784 }
785
786 if (debug) {
787 sysfs_attr_init(&handles->devattr.attr);
788 handles->devattr.attr.name = "handles";
789 handles->devattr.attr.mode = S_IRUGO;
790 handles->devattr.show = sony_nc_handles_show;
791
792 /* allow reading capabilities via sysfs */
793 if (device_create_file(&pd->dev, &handles->devattr)) {
794 kfree(handles);
795 handles = NULL;
796 return -1;
797 }
798 }
799
800 return 0;
801 }
802
803 static int sony_nc_handles_cleanup(struct platform_device *pd)
804 {
805 if (handles) {
806 if (debug)
807 device_remove_file(&pd->dev, &handles->devattr);
808 kfree(handles);
809 handles = NULL;
810 }
811 return 0;
812 }
813
814 static int sony_find_snc_handle(int handle)
815 {
816 int i;
817
818 /* not initialized yet, return early */
819 if (!handles)
820 return -1;
821
822 for (i = 0; i < 0x10; i++) {
823 if (handles->cap[i] == handle) {
824 dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
825 handle, i);
826 return i;
827 }
828 }
829 dprintk("handle 0x%.4x not found\n", handle);
830 return -1;
831 }
832
833 static int sony_call_snc_handle(int handle, int argument, int *result)
834 {
835 int ret = 0;
836 int offset = sony_find_snc_handle(handle);
837
838 if (offset < 0)
839 return -1;
840
841 ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
842 result);
843 dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
844 *result);
845 return ret;
846 }
847
848 /*
849 * sony_nc_values input/output validate functions
850 */
851
852 /* brightness_default_validate:
853 *
854 * manipulate input output values to keep consistency with the
855 * backlight framework for which brightness values are 0-based.
856 */
857 static int brightness_default_validate(const int direction, const int value)
858 {
859 switch (direction) {
860 case SNC_VALIDATE_OUT:
861 return value - 1;
862 case SNC_VALIDATE_IN:
863 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
864 return value + 1;
865 }
866 return -EINVAL;
867 }
868
869 /* boolean_validate:
870 *
871 * on input validate boolean values 0/1, on output just pass the
872 * received value.
873 */
874 static int boolean_validate(const int direction, const int value)
875 {
876 if (direction == SNC_VALIDATE_IN) {
877 if (value != 0 && value != 1)
878 return -EINVAL;
879 }
880 return value;
881 }
882
883 /*
884 * Sysfs show/store common to all sony_nc_values
885 */
886 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
887 char *buffer)
888 {
889 int value;
890 struct sony_nc_value *item =
891 container_of(attr, struct sony_nc_value, devattr);
892
893 if (!*item->acpiget)
894 return -EIO;
895
896 if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
897 return -EIO;
898
899 if (item->validate)
900 value = item->validate(SNC_VALIDATE_OUT, value);
901
902 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
903 }
904
905 static ssize_t sony_nc_sysfs_store(struct device *dev,
906 struct device_attribute *attr,
907 const char *buffer, size_t count)
908 {
909 int value;
910 struct sony_nc_value *item =
911 container_of(attr, struct sony_nc_value, devattr);
912
913 if (!item->acpiset)
914 return -EIO;
915
916 if (count > 31)
917 return -EINVAL;
918
919 value = simple_strtoul(buffer, NULL, 10);
920
921 if (item->validate)
922 value = item->validate(SNC_VALIDATE_IN, value);
923
924 if (value < 0)
925 return value;
926
927 if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
928 return -EIO;
929 item->value = value;
930 item->valid = 1;
931 return count;
932 }
933
934
935 /*
936 * Backlight device
937 */
938 struct sony_backlight_props {
939 struct backlight_device *dev;
940 int handle;
941 u8 offset;
942 u8 maxlvl;
943 };
944 struct sony_backlight_props sony_bl_props;
945
946 static int sony_backlight_update_status(struct backlight_device *bd)
947 {
948 return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
949 bd->props.brightness + 1, NULL);
950 }
951
952 static int sony_backlight_get_brightness(struct backlight_device *bd)
953 {
954 int value;
955
956 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
957 return 0;
958 /* brightness levels are 1-based, while backlight ones are 0-based */
959 return value - 1;
960 }
961
962 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
963 {
964 int result;
965 struct sony_backlight_props *sdev =
966 (struct sony_backlight_props *)bl_get_data(bd);
967
968 sony_call_snc_handle(sdev->handle, 0x0200, &result);
969
970 return (result & 0xff) - sdev->offset;
971 }
972
973 static int sony_nc_update_status_ng(struct backlight_device *bd)
974 {
975 int value, result;
976 struct sony_backlight_props *sdev =
977 (struct sony_backlight_props *)bl_get_data(bd);
978
979 value = bd->props.brightness + sdev->offset;
980 if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result))
981 return -EIO;
982
983 return value;
984 }
985
986 static const struct backlight_ops sony_backlight_ops = {
987 .options = BL_CORE_SUSPENDRESUME,
988 .update_status = sony_backlight_update_status,
989 .get_brightness = sony_backlight_get_brightness,
990 };
991 static const struct backlight_ops sony_backlight_ng_ops = {
992 .options = BL_CORE_SUSPENDRESUME,
993 .update_status = sony_nc_update_status_ng,
994 .get_brightness = sony_nc_get_brightness_ng,
995 };
996
997 /*
998 * New SNC-only Vaios event mapping to driver known keys
999 */
1000 struct sony_nc_event {
1001 u8 data;
1002 u8 event;
1003 };
1004
1005 static struct sony_nc_event sony_100_events[] = {
1006 { 0x90, SONYPI_EVENT_PKEY_P1 },
1007 { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1008 { 0x91, SONYPI_EVENT_PKEY_P2 },
1009 { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1010 { 0x81, SONYPI_EVENT_FNKEY_F1 },
1011 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1012 { 0x82, SONYPI_EVENT_FNKEY_F2 },
1013 { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1014 { 0x83, SONYPI_EVENT_FNKEY_F3 },
1015 { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1016 { 0x84, SONYPI_EVENT_FNKEY_F4 },
1017 { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1018 { 0x85, SONYPI_EVENT_FNKEY_F5 },
1019 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1020 { 0x86, SONYPI_EVENT_FNKEY_F6 },
1021 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1022 { 0x87, SONYPI_EVENT_FNKEY_F7 },
1023 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1024 { 0x89, SONYPI_EVENT_FNKEY_F9 },
1025 { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1026 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1027 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1028 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1029 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1030 { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1031 { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1032 { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1033 { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1034 { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1035 { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1036 { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1037 { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1038 { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1039 { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1040 { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1041 { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1042 { 0, 0 },
1043 };
1044
1045 static struct sony_nc_event sony_127_events[] = {
1046 { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1047 { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1048 { 0x82, SONYPI_EVENT_PKEY_P1 },
1049 { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1050 { 0x83, SONYPI_EVENT_PKEY_P2 },
1051 { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1052 { 0x84, SONYPI_EVENT_PKEY_P3 },
1053 { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1054 { 0x85, SONYPI_EVENT_PKEY_P4 },
1055 { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1056 { 0x86, SONYPI_EVENT_PKEY_P5 },
1057 { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1058 { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1059 { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1060 { 0, 0 },
1061 };
1062
1063 /*
1064 * ACPI callbacks
1065 */
1066 static void sony_nc_notify(struct acpi_device *device, u32 event)
1067 {
1068 u32 ev = event;
1069
1070 if (ev >= 0x90) {
1071 /* New-style event */
1072 int result;
1073 int key_handle = 0;
1074 ev -= 0x90;
1075
1076 if (sony_find_snc_handle(0x100) == ev)
1077 key_handle = 0x100;
1078 if (sony_find_snc_handle(0x127) == ev)
1079 key_handle = 0x127;
1080
1081 if (key_handle) {
1082 struct sony_nc_event *key_event;
1083
1084 if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1085 dprintk("sony_nc_notify, unable to decode"
1086 " event 0x%.2x 0x%.2x\n", key_handle,
1087 ev);
1088 /* restore the original event */
1089 ev = event;
1090 } else {
1091 ev = result & 0xFF;
1092
1093 if (key_handle == 0x100)
1094 key_event = sony_100_events;
1095 else
1096 key_event = sony_127_events;
1097
1098 for (; key_event->data; key_event++) {
1099 if (key_event->data == ev) {
1100 ev = key_event->event;
1101 break;
1102 }
1103 }
1104
1105 if (!key_event->data)
1106 pr_info("Unknown event: 0x%x 0x%x\n",
1107 key_handle, ev);
1108 else
1109 sony_laptop_report_input_event(ev);
1110 }
1111 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1112 sony_nc_rfkill_update();
1113 return;
1114 }
1115 } else
1116 sony_laptop_report_input_event(ev);
1117
1118 dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1119 acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1120 }
1121
1122 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1123 void *context, void **return_value)
1124 {
1125 struct acpi_device_info *info;
1126
1127 if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1128 pr_warn("method: name: %4.4s, args %X\n",
1129 (char *)&info->name, info->param_count);
1130
1131 kfree(info);
1132 }
1133
1134 return AE_OK;
1135 }
1136
1137 /*
1138 * ACPI device
1139 */
1140 static int sony_nc_function_setup(struct acpi_device *device)
1141 {
1142 int result;
1143
1144 /* Enable all events */
1145 acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1146
1147 /* Setup hotkeys */
1148 sony_call_snc_handle(0x0100, 0, &result);
1149 sony_call_snc_handle(0x0101, 0, &result);
1150 sony_call_snc_handle(0x0102, 0x100, &result);
1151 sony_call_snc_handle(0x0127, 0, &result);
1152
1153 return 0;
1154 }
1155
1156 static int sony_nc_resume(struct acpi_device *device)
1157 {
1158 struct sony_nc_value *item;
1159 acpi_handle handle;
1160
1161 for (item = sony_nc_values; item->name; item++) {
1162 int ret;
1163
1164 if (!item->valid)
1165 continue;
1166 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1167 item->value, NULL);
1168 if (ret < 0) {
1169 pr_err("%s: %d\n", __func__, ret);
1170 break;
1171 }
1172 }
1173
1174 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1175 &handle))) {
1176 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1177 dprintk("ECON Method failed\n");
1178 }
1179
1180 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1181 &handle))) {
1182 dprintk("Doing SNC setup\n");
1183 sony_nc_function_setup(device);
1184 }
1185
1186 /* re-read rfkill state */
1187 sony_nc_rfkill_update();
1188
1189 /* restore kbd backlight states */
1190 sony_nc_kbd_backlight_resume();
1191
1192 return 0;
1193 }
1194
1195 static void sony_nc_rfkill_cleanup(void)
1196 {
1197 int i;
1198
1199 for (i = 0; i < N_SONY_RFKILL; i++) {
1200 if (sony_rfkill_devices[i]) {
1201 rfkill_unregister(sony_rfkill_devices[i]);
1202 rfkill_destroy(sony_rfkill_devices[i]);
1203 }
1204 }
1205 }
1206
1207 static int sony_nc_rfkill_set(void *data, bool blocked)
1208 {
1209 int result;
1210 int argument = sony_rfkill_address[(long) data] + 0x100;
1211
1212 if (!blocked)
1213 argument |= 0xff0000;
1214
1215 return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1216 }
1217
1218 static const struct rfkill_ops sony_rfkill_ops = {
1219 .set_block = sony_nc_rfkill_set,
1220 };
1221
1222 static int sony_nc_setup_rfkill(struct acpi_device *device,
1223 enum sony_nc_rfkill nc_type)
1224 {
1225 int err = 0;
1226 struct rfkill *rfk;
1227 enum rfkill_type type;
1228 const char *name;
1229 int result;
1230 bool hwblock;
1231
1232 switch (nc_type) {
1233 case SONY_WIFI:
1234 type = RFKILL_TYPE_WLAN;
1235 name = "sony-wifi";
1236 break;
1237 case SONY_BLUETOOTH:
1238 type = RFKILL_TYPE_BLUETOOTH;
1239 name = "sony-bluetooth";
1240 break;
1241 case SONY_WWAN:
1242 type = RFKILL_TYPE_WWAN;
1243 name = "sony-wwan";
1244 break;
1245 case SONY_WIMAX:
1246 type = RFKILL_TYPE_WIMAX;
1247 name = "sony-wimax";
1248 break;
1249 default:
1250 return -EINVAL;
1251 }
1252
1253 rfk = rfkill_alloc(name, &device->dev, type,
1254 &sony_rfkill_ops, (void *)nc_type);
1255 if (!rfk)
1256 return -ENOMEM;
1257
1258 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1259 hwblock = !(result & 0x1);
1260 rfkill_set_hw_state(rfk, hwblock);
1261
1262 err = rfkill_register(rfk);
1263 if (err) {
1264 rfkill_destroy(rfk);
1265 return err;
1266 }
1267 sony_rfkill_devices[nc_type] = rfk;
1268 return err;
1269 }
1270
1271 static void sony_nc_rfkill_update(void)
1272 {
1273 enum sony_nc_rfkill i;
1274 int result;
1275 bool hwblock;
1276
1277 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1278 hwblock = !(result & 0x1);
1279
1280 for (i = 0; i < N_SONY_RFKILL; i++) {
1281 int argument = sony_rfkill_address[i];
1282
1283 if (!sony_rfkill_devices[i])
1284 continue;
1285
1286 if (hwblock) {
1287 if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1288 /* we already know we're blocked */
1289 }
1290 continue;
1291 }
1292
1293 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1294 rfkill_set_states(sony_rfkill_devices[i],
1295 !(result & 0xf), false);
1296 }
1297 }
1298
1299 static void sony_nc_rfkill_setup(struct acpi_device *device)
1300 {
1301 int offset;
1302 u8 dev_code, i;
1303 acpi_status status;
1304 struct acpi_object_list params;
1305 union acpi_object in_obj;
1306 union acpi_object *device_enum;
1307 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1308
1309 offset = sony_find_snc_handle(0x124);
1310 if (offset == -1) {
1311 offset = sony_find_snc_handle(0x135);
1312 if (offset == -1)
1313 return;
1314 else
1315 sony_rfkill_handle = 0x135;
1316 } else
1317 sony_rfkill_handle = 0x124;
1318 dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1319
1320 /* need to read the whole buffer returned by the acpi call to SN06
1321 * here otherwise we may miss some features
1322 */
1323 params.count = 1;
1324 params.pointer = &in_obj;
1325 in_obj.type = ACPI_TYPE_INTEGER;
1326 in_obj.integer.value = offset;
1327 status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1328 &buffer);
1329 if (ACPI_FAILURE(status)) {
1330 dprintk("Radio device enumeration failed\n");
1331 return;
1332 }
1333
1334 device_enum = (union acpi_object *) buffer.pointer;
1335 if (!device_enum) {
1336 pr_err("No SN06 return object\n");
1337 goto out_no_enum;
1338 }
1339 if (device_enum->type != ACPI_TYPE_BUFFER) {
1340 pr_err("Invalid SN06 return object 0x%.2x\n",
1341 device_enum->type);
1342 goto out_no_enum;
1343 }
1344
1345 /* the buffer is filled with magic numbers describing the devices
1346 * available, 0xff terminates the enumeration
1347 */
1348 for (i = 0; i < device_enum->buffer.length; i++) {
1349
1350 dev_code = *(device_enum->buffer.pointer + i);
1351 if (dev_code == 0xff)
1352 break;
1353
1354 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1355
1356 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1357 sony_nc_setup_rfkill(device, SONY_WIFI);
1358
1359 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1360 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1361
1362 if ((0xf0 & dev_code) == 0x20 &&
1363 !sony_rfkill_devices[SONY_WWAN])
1364 sony_nc_setup_rfkill(device, SONY_WWAN);
1365
1366 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1367 sony_nc_setup_rfkill(device, SONY_WIMAX);
1368 }
1369
1370 out_no_enum:
1371 kfree(buffer.pointer);
1372 return;
1373 }
1374
1375 /* Keyboard backlight feature */
1376 #define KBDBL_HANDLER 0x137
1377 #define KBDBL_PRESENT 0xB00
1378 #define SET_MODE 0xC00
1379 #define SET_STATE 0xD00
1380 #define SET_TIMEOUT 0xE00
1381
1382 struct kbd_backlight {
1383 int mode;
1384 int timeout;
1385 struct device_attribute mode_attr;
1386 struct device_attribute timeout_attr;
1387 };
1388
1389 static struct kbd_backlight *kbdbl_handle;
1390
1391 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1392 {
1393 int result;
1394
1395 if (value > 1)
1396 return -EINVAL;
1397
1398 if (sony_call_snc_handle(KBDBL_HANDLER,
1399 (value << 0x10) | SET_MODE, &result))
1400 return -EIO;
1401
1402 /* Try to turn the light on/off immediately */
1403 sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
1404 &result);
1405
1406 kbdbl_handle->mode = value;
1407
1408 return 0;
1409 }
1410
1411 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1412 struct device_attribute *attr,
1413 const char *buffer, size_t count)
1414 {
1415 int ret = 0;
1416 unsigned long value;
1417
1418 if (count > 31)
1419 return -EINVAL;
1420
1421 if (strict_strtoul(buffer, 10, &value))
1422 return -EINVAL;
1423
1424 ret = __sony_nc_kbd_backlight_mode_set(value);
1425 if (ret < 0)
1426 return ret;
1427
1428 return count;
1429 }
1430
1431 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1432 struct device_attribute *attr, char *buffer)
1433 {
1434 ssize_t count = 0;
1435 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1436 return count;
1437 }
1438
1439 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1440 {
1441 int result;
1442
1443 if (value > 3)
1444 return -EINVAL;
1445
1446 if (sony_call_snc_handle(KBDBL_HANDLER,
1447 (value << 0x10) | SET_TIMEOUT, &result))
1448 return -EIO;
1449
1450 kbdbl_handle->timeout = value;
1451
1452 return 0;
1453 }
1454
1455 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1456 struct device_attribute *attr,
1457 const char *buffer, size_t count)
1458 {
1459 int ret = 0;
1460 unsigned long value;
1461
1462 if (count > 31)
1463 return -EINVAL;
1464
1465 if (strict_strtoul(buffer, 10, &value))
1466 return -EINVAL;
1467
1468 ret = __sony_nc_kbd_backlight_timeout_set(value);
1469 if (ret < 0)
1470 return ret;
1471
1472 return count;
1473 }
1474
1475 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1476 struct device_attribute *attr, char *buffer)
1477 {
1478 ssize_t count = 0;
1479 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1480 return count;
1481 }
1482
1483 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1484 {
1485 int result;
1486
1487 if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
1488 return 0;
1489 if (!(result & 0x02))
1490 return 0;
1491
1492 kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1493 if (!kbdbl_handle)
1494 return -ENOMEM;
1495
1496 sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1497 kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1498 kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1499 kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1500 kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1501
1502 sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1503 kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1504 kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1505 kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1506 kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1507
1508 if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1509 goto outkzalloc;
1510
1511 if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1512 goto outmode;
1513
1514 __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1515 __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1516
1517 return 0;
1518
1519 outmode:
1520 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1521 outkzalloc:
1522 kfree(kbdbl_handle);
1523 kbdbl_handle = NULL;
1524 return -1;
1525 }
1526
1527 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1528 {
1529 if (kbdbl_handle) {
1530 int result;
1531
1532 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1533 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1534
1535 /* restore the default hw behaviour */
1536 sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
1537 sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
1538
1539 kfree(kbdbl_handle);
1540 }
1541 return 0;
1542 }
1543
1544 static void sony_nc_kbd_backlight_resume(void)
1545 {
1546 int ignore = 0;
1547
1548 if (!kbdbl_handle)
1549 return;
1550
1551 if (kbdbl_handle->mode == 0)
1552 sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
1553
1554 if (kbdbl_handle->timeout != 0)
1555 sony_call_snc_handle(KBDBL_HANDLER,
1556 (kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
1557 &ignore);
1558 }
1559
1560 static void sony_nc_backlight_ng_read_limits(int handle,
1561 struct sony_backlight_props *props)
1562 {
1563 int offset;
1564 acpi_status status;
1565 u8 brlvl, i;
1566 u8 min = 0xff, max = 0x00;
1567 struct acpi_object_list params;
1568 union acpi_object in_obj;
1569 union acpi_object *lvl_enum;
1570 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1571
1572 props->handle = handle;
1573 props->offset = 0;
1574 props->maxlvl = 0xff;
1575
1576 offset = sony_find_snc_handle(handle);
1577 if (offset < 0)
1578 return;
1579
1580 /* try to read the boundaries from ACPI tables, if we fail the above
1581 * defaults should be reasonable
1582 */
1583 params.count = 1;
1584 params.pointer = &in_obj;
1585 in_obj.type = ACPI_TYPE_INTEGER;
1586 in_obj.integer.value = offset;
1587 status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1588 &buffer);
1589 if (ACPI_FAILURE(status))
1590 return;
1591
1592 lvl_enum = (union acpi_object *) buffer.pointer;
1593 if (!lvl_enum) {
1594 pr_err("No SN06 return object.");
1595 return;
1596 }
1597 if (lvl_enum->type != ACPI_TYPE_BUFFER) {
1598 pr_err("Invalid SN06 return object 0x%.2x\n",
1599 lvl_enum->type);
1600 goto out_invalid;
1601 }
1602
1603 /* the buffer lists brightness levels available, brightness levels are
1604 * from 0 to 8 in the array, other values are used by ALS control.
1605 */
1606 for (i = 0; i < 9 && i < lvl_enum->buffer.length; i++) {
1607
1608 brlvl = *(lvl_enum->buffer.pointer + i);
1609 dprintk("Brightness level: %d\n", brlvl);
1610
1611 if (!brlvl)
1612 break;
1613
1614 if (brlvl > max)
1615 max = brlvl;
1616 if (brlvl < min)
1617 min = brlvl;
1618 }
1619 props->offset = min;
1620 props->maxlvl = max;
1621 dprintk("Brightness levels: min=%d max=%d\n", props->offset,
1622 props->maxlvl);
1623
1624 out_invalid:
1625 kfree(buffer.pointer);
1626 return;
1627 }
1628
1629 static void sony_nc_backlight_setup(void)
1630 {
1631 acpi_handle unused;
1632 int max_brightness = 0;
1633 const struct backlight_ops *ops = NULL;
1634 struct backlight_properties props;
1635
1636 if (sony_find_snc_handle(0x12f) != -1) {
1637 ops = &sony_backlight_ng_ops;
1638 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
1639 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1640
1641 } else if (sony_find_snc_handle(0x137) != -1) {
1642 ops = &sony_backlight_ng_ops;
1643 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
1644 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1645
1646 } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1647 &unused))) {
1648 ops = &sony_backlight_ops;
1649 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1650
1651 } else
1652 return;
1653
1654 memset(&props, 0, sizeof(struct backlight_properties));
1655 props.type = BACKLIGHT_PLATFORM;
1656 props.max_brightness = max_brightness;
1657 sony_bl_props.dev = backlight_device_register("sony", NULL,
1658 &sony_bl_props,
1659 ops, &props);
1660
1661 if (IS_ERR(sony_bl_props.dev)) {
1662 pr_warn("unable to register backlight device\n");
1663 sony_bl_props.dev = NULL;
1664 } else
1665 sony_bl_props.dev->props.brightness =
1666 ops->get_brightness(sony_bl_props.dev);
1667 }
1668
1669 static void sony_nc_backlight_cleanup(void)
1670 {
1671 if (sony_bl_props.dev)
1672 backlight_device_unregister(sony_bl_props.dev);
1673 }
1674
1675 static int sony_nc_add(struct acpi_device *device)
1676 {
1677 acpi_status status;
1678 int result = 0;
1679 acpi_handle handle;
1680 struct sony_nc_value *item;
1681
1682 pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1683
1684 sony_nc_acpi_device = device;
1685 strcpy(acpi_device_class(device), "sony/hotkey");
1686
1687 sony_nc_acpi_handle = device->handle;
1688
1689 /* read device status */
1690 result = acpi_bus_get_status(device);
1691 /* bail IFF the above call was successful and the device is not present */
1692 if (!result && !device->status.present) {
1693 dprintk("Device not present\n");
1694 result = -ENODEV;
1695 goto outwalk;
1696 }
1697
1698 result = sony_pf_add();
1699 if (result)
1700 goto outpresent;
1701
1702 if (debug) {
1703 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1704 sony_nc_acpi_handle, 1, sony_walk_callback,
1705 NULL, NULL, NULL);
1706 if (ACPI_FAILURE(status)) {
1707 pr_warn("unable to walk acpi resources\n");
1708 result = -ENODEV;
1709 goto outpresent;
1710 }
1711 }
1712
1713 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1714 &handle))) {
1715 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1716 dprintk("ECON Method failed\n");
1717 }
1718
1719 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1720 &handle))) {
1721 dprintk("Doing SNC setup\n");
1722 result = sony_nc_handles_setup(sony_pf_device);
1723 if (result)
1724 goto outpresent;
1725 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1726 if (result)
1727 goto outsnc;
1728 sony_nc_function_setup(device);
1729 sony_nc_rfkill_setup(device);
1730 }
1731
1732 /* setup input devices and helper fifo */
1733 result = sony_laptop_setup_input(device);
1734 if (result) {
1735 pr_err("Unable to create input devices\n");
1736 goto outkbdbacklight;
1737 }
1738
1739 if (acpi_video_backlight_support()) {
1740 pr_info("brightness ignored, must be controlled by ACPI video driver\n");
1741 } else {
1742 sony_nc_backlight_setup();
1743 }
1744
1745 /* create sony_pf sysfs attributes related to the SNC device */
1746 for (item = sony_nc_values; item->name; ++item) {
1747
1748 if (!debug && item->debug)
1749 continue;
1750
1751 /* find the available acpiget as described in the DSDT */
1752 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1753 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1754 *item->acpiget,
1755 &handle))) {
1756 dprintk("Found %s getter: %s\n",
1757 item->name, *item->acpiget);
1758 item->devattr.attr.mode |= S_IRUGO;
1759 break;
1760 }
1761 }
1762
1763 /* find the available acpiset as described in the DSDT */
1764 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1765 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1766 *item->acpiset,
1767 &handle))) {
1768 dprintk("Found %s setter: %s\n",
1769 item->name, *item->acpiset);
1770 item->devattr.attr.mode |= S_IWUSR;
1771 break;
1772 }
1773 }
1774
1775 if (item->devattr.attr.mode != 0) {
1776 result =
1777 device_create_file(&sony_pf_device->dev,
1778 &item->devattr);
1779 if (result)
1780 goto out_sysfs;
1781 }
1782 }
1783
1784 return 0;
1785
1786 out_sysfs:
1787 for (item = sony_nc_values; item->name; ++item) {
1788 device_remove_file(&sony_pf_device->dev, &item->devattr);
1789 }
1790 sony_nc_backlight_cleanup();
1791
1792 sony_laptop_remove_input();
1793
1794 outkbdbacklight:
1795 sony_nc_kbd_backlight_cleanup(sony_pf_device);
1796
1797 outsnc:
1798 sony_nc_handles_cleanup(sony_pf_device);
1799
1800 outpresent:
1801 sony_pf_remove();
1802
1803 outwalk:
1804 sony_nc_rfkill_cleanup();
1805 return result;
1806 }
1807
1808 static int sony_nc_remove(struct acpi_device *device, int type)
1809 {
1810 struct sony_nc_value *item;
1811
1812 sony_nc_backlight_cleanup();
1813
1814 sony_nc_acpi_device = NULL;
1815
1816 for (item = sony_nc_values; item->name; ++item) {
1817 device_remove_file(&sony_pf_device->dev, &item->devattr);
1818 }
1819
1820 sony_nc_kbd_backlight_cleanup(sony_pf_device);
1821 sony_nc_handles_cleanup(sony_pf_device);
1822 sony_pf_remove();
1823 sony_laptop_remove_input();
1824 sony_nc_rfkill_cleanup();
1825 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1826
1827 return 0;
1828 }
1829
1830 static const struct acpi_device_id sony_device_ids[] = {
1831 {SONY_NC_HID, 0},
1832 {SONY_PIC_HID, 0},
1833 {"", 0},
1834 };
1835 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1836
1837 static const struct acpi_device_id sony_nc_device_ids[] = {
1838 {SONY_NC_HID, 0},
1839 {"", 0},
1840 };
1841
1842 static struct acpi_driver sony_nc_driver = {
1843 .name = SONY_NC_DRIVER_NAME,
1844 .class = SONY_NC_CLASS,
1845 .ids = sony_nc_device_ids,
1846 .owner = THIS_MODULE,
1847 .ops = {
1848 .add = sony_nc_add,
1849 .remove = sony_nc_remove,
1850 .resume = sony_nc_resume,
1851 .notify = sony_nc_notify,
1852 },
1853 };
1854
1855 /*********** SPIC (SNY6001) Device ***********/
1856
1857 #define SONYPI_DEVICE_TYPE1 0x00000001
1858 #define SONYPI_DEVICE_TYPE2 0x00000002
1859 #define SONYPI_DEVICE_TYPE3 0x00000004
1860
1861 #define SONYPI_TYPE1_OFFSET 0x04
1862 #define SONYPI_TYPE2_OFFSET 0x12
1863 #define SONYPI_TYPE3_OFFSET 0x12
1864
1865 struct sony_pic_ioport {
1866 struct acpi_resource_io io1;
1867 struct acpi_resource_io io2;
1868 struct list_head list;
1869 };
1870
1871 struct sony_pic_irq {
1872 struct acpi_resource_irq irq;
1873 struct list_head list;
1874 };
1875
1876 struct sonypi_eventtypes {
1877 u8 data;
1878 unsigned long mask;
1879 struct sonypi_event *events;
1880 };
1881
1882 struct sony_pic_dev {
1883 struct acpi_device *acpi_dev;
1884 struct sony_pic_irq *cur_irq;
1885 struct sony_pic_ioport *cur_ioport;
1886 struct list_head interrupts;
1887 struct list_head ioports;
1888 struct mutex lock;
1889 struct sonypi_eventtypes *event_types;
1890 int (*handle_irq)(const u8, const u8);
1891 int model;
1892 u16 evport_offset;
1893 u8 camera_power;
1894 u8 bluetooth_power;
1895 u8 wwan_power;
1896 };
1897
1898 static struct sony_pic_dev spic_dev = {
1899 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
1900 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
1901 };
1902
1903 static int spic_drv_registered;
1904
1905 /* Event masks */
1906 #define SONYPI_JOGGER_MASK 0x00000001
1907 #define SONYPI_CAPTURE_MASK 0x00000002
1908 #define SONYPI_FNKEY_MASK 0x00000004
1909 #define SONYPI_BLUETOOTH_MASK 0x00000008
1910 #define SONYPI_PKEY_MASK 0x00000010
1911 #define SONYPI_BACK_MASK 0x00000020
1912 #define SONYPI_HELP_MASK 0x00000040
1913 #define SONYPI_LID_MASK 0x00000080
1914 #define SONYPI_ZOOM_MASK 0x00000100
1915 #define SONYPI_THUMBPHRASE_MASK 0x00000200
1916 #define SONYPI_MEYE_MASK 0x00000400
1917 #define SONYPI_MEMORYSTICK_MASK 0x00000800
1918 #define SONYPI_BATTERY_MASK 0x00001000
1919 #define SONYPI_WIRELESS_MASK 0x00002000
1920
1921 struct sonypi_event {
1922 u8 data;
1923 u8 event;
1924 };
1925
1926 /* The set of possible button release events */
1927 static struct sonypi_event sonypi_releaseev[] = {
1928 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1929 { 0, 0 }
1930 };
1931
1932 /* The set of possible jogger events */
1933 static struct sonypi_event sonypi_joggerev[] = {
1934 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1935 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1936 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1937 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1938 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1939 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1940 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1941 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1942 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1943 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1944 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1945 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1946 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1947 { 0, 0 }
1948 };
1949
1950 /* The set of possible capture button events */
1951 static struct sonypi_event sonypi_captureev[] = {
1952 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1953 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1954 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1955 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1956 { 0, 0 }
1957 };
1958
1959 /* The set of possible fnkeys events */
1960 static struct sonypi_event sonypi_fnkeyev[] = {
1961 { 0x10, SONYPI_EVENT_FNKEY_ESC },
1962 { 0x11, SONYPI_EVENT_FNKEY_F1 },
1963 { 0x12, SONYPI_EVENT_FNKEY_F2 },
1964 { 0x13, SONYPI_EVENT_FNKEY_F3 },
1965 { 0x14, SONYPI_EVENT_FNKEY_F4 },
1966 { 0x15, SONYPI_EVENT_FNKEY_F5 },
1967 { 0x16, SONYPI_EVENT_FNKEY_F6 },
1968 { 0x17, SONYPI_EVENT_FNKEY_F7 },
1969 { 0x18, SONYPI_EVENT_FNKEY_F8 },
1970 { 0x19, SONYPI_EVENT_FNKEY_F9 },
1971 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1972 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1973 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1974 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1975 { 0x21, SONYPI_EVENT_FNKEY_1 },
1976 { 0x22, SONYPI_EVENT_FNKEY_2 },
1977 { 0x31, SONYPI_EVENT_FNKEY_D },
1978 { 0x32, SONYPI_EVENT_FNKEY_E },
1979 { 0x33, SONYPI_EVENT_FNKEY_F },
1980 { 0x34, SONYPI_EVENT_FNKEY_S },
1981 { 0x35, SONYPI_EVENT_FNKEY_B },
1982 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1983 { 0, 0 }
1984 };
1985
1986 /* The set of possible program key events */
1987 static struct sonypi_event sonypi_pkeyev[] = {
1988 { 0x01, SONYPI_EVENT_PKEY_P1 },
1989 { 0x02, SONYPI_EVENT_PKEY_P2 },
1990 { 0x04, SONYPI_EVENT_PKEY_P3 },
1991 { 0x20, SONYPI_EVENT_PKEY_P1 },
1992 { 0, 0 }
1993 };
1994
1995 /* The set of possible bluetooth events */
1996 static struct sonypi_event sonypi_blueev[] = {
1997 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1998 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1999 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
2000 { 0, 0 }
2001 };
2002
2003 /* The set of possible wireless events */
2004 static struct sonypi_event sonypi_wlessev[] = {
2005 { 0x59, SONYPI_EVENT_IGNORE },
2006 { 0x5a, SONYPI_EVENT_IGNORE },
2007 { 0, 0 }
2008 };
2009
2010 /* The set of possible back button events */
2011 static struct sonypi_event sonypi_backev[] = {
2012 { 0x20, SONYPI_EVENT_BACK_PRESSED },
2013 { 0, 0 }
2014 };
2015
2016 /* The set of possible help button events */
2017 static struct sonypi_event sonypi_helpev[] = {
2018 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
2019 { 0, 0 }
2020 };
2021
2022
2023 /* The set of possible lid events */
2024 static struct sonypi_event sonypi_lidev[] = {
2025 { 0x51, SONYPI_EVENT_LID_CLOSED },
2026 { 0x50, SONYPI_EVENT_LID_OPENED },
2027 { 0, 0 }
2028 };
2029
2030 /* The set of possible zoom events */
2031 static struct sonypi_event sonypi_zoomev[] = {
2032 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
2033 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
2034 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
2035 { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
2036 { 0, 0 }
2037 };
2038
2039 /* The set of possible thumbphrase events */
2040 static struct sonypi_event sonypi_thumbphraseev[] = {
2041 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
2042 { 0, 0 }
2043 };
2044
2045 /* The set of possible motioneye camera events */
2046 static struct sonypi_event sonypi_meyeev[] = {
2047 { 0x00, SONYPI_EVENT_MEYE_FACE },
2048 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
2049 { 0, 0 }
2050 };
2051
2052 /* The set of possible memorystick events */
2053 static struct sonypi_event sonypi_memorystickev[] = {
2054 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
2055 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
2056 { 0, 0 }
2057 };
2058
2059 /* The set of possible battery events */
2060 static struct sonypi_event sonypi_batteryev[] = {
2061 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
2062 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
2063 { 0, 0 }
2064 };
2065
2066 /* The set of possible volume events */
2067 static struct sonypi_event sonypi_volumeev[] = {
2068 { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
2069 { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
2070 { 0, 0 }
2071 };
2072
2073 /* The set of possible brightness events */
2074 static struct sonypi_event sonypi_brightnessev[] = {
2075 { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
2076 { 0, 0 }
2077 };
2078
2079 static struct sonypi_eventtypes type1_events[] = {
2080 { 0, 0xffffffff, sonypi_releaseev },
2081 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
2082 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
2083 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
2084 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
2085 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2086 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2087 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
2088 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2089 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
2090 { 0 },
2091 };
2092 static struct sonypi_eventtypes type2_events[] = {
2093 { 0, 0xffffffff, sonypi_releaseev },
2094 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
2095 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
2096 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
2097 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2098 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2099 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
2100 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
2101 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
2102 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
2103 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
2104 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2105 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2106 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2107 { 0 },
2108 };
2109 static struct sonypi_eventtypes type3_events[] = {
2110 { 0, 0xffffffff, sonypi_releaseev },
2111 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2112 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
2113 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2114 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2115 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2116 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2117 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2118 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2119 { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2120 { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2121 { 0 },
2122 };
2123
2124 /* low level spic calls */
2125 #define ITERATIONS_LONG 10000
2126 #define ITERATIONS_SHORT 10
2127 #define wait_on_command(command, iterations) { \
2128 unsigned int n = iterations; \
2129 while (--n && (command)) \
2130 udelay(1); \
2131 if (!n) \
2132 dprintk("command failed at %s : %s (line %d)\n", \
2133 __FILE__, __func__, __LINE__); \
2134 }
2135
2136 static u8 sony_pic_call1(u8 dev)
2137 {
2138 u8 v1, v2;
2139
2140 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2141 ITERATIONS_LONG);
2142 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2143 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2144 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2145 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2146 return v2;
2147 }
2148
2149 static u8 sony_pic_call2(u8 dev, u8 fn)
2150 {
2151 u8 v1;
2152
2153 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2154 ITERATIONS_LONG);
2155 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2156 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2157 ITERATIONS_LONG);
2158 outb(fn, spic_dev.cur_ioport->io1.minimum);
2159 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2160 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2161 return v1;
2162 }
2163
2164 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2165 {
2166 u8 v1;
2167
2168 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2169 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2170 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2171 outb(fn, spic_dev.cur_ioport->io1.minimum);
2172 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2173 outb(v, spic_dev.cur_ioport->io1.minimum);
2174 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2175 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2176 dev, fn, v, v1);
2177 return v1;
2178 }
2179
2180 /*
2181 * minidrivers for SPIC models
2182 */
2183 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2184 {
2185 /*
2186 * 0x31 could mean we have to take some extra action and wait for
2187 * the next irq for some Type3 models, it will generate a new
2188 * irq and we can read new data from the device:
2189 * - 0x5c and 0x5f requires 0xA0
2190 * - 0x61 requires 0xB3
2191 */
2192 if (data_mask == 0x31) {
2193 if (ev == 0x5c || ev == 0x5f)
2194 sony_pic_call1(0xA0);
2195 else if (ev == 0x61)
2196 sony_pic_call1(0xB3);
2197 return 0;
2198 }
2199 return 1;
2200 }
2201
2202 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2203 {
2204 struct pci_dev *pcidev;
2205
2206 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2207 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2208 if (pcidev) {
2209 dev->model = SONYPI_DEVICE_TYPE1;
2210 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2211 dev->event_types = type1_events;
2212 goto out;
2213 }
2214
2215 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2216 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2217 if (pcidev) {
2218 dev->model = SONYPI_DEVICE_TYPE2;
2219 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2220 dev->event_types = type2_events;
2221 goto out;
2222 }
2223
2224 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2225 PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2226 if (pcidev) {
2227 dev->model = SONYPI_DEVICE_TYPE3;
2228 dev->handle_irq = type3_handle_irq;
2229 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2230 dev->event_types = type3_events;
2231 goto out;
2232 }
2233
2234 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2235 PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2236 if (pcidev) {
2237 dev->model = SONYPI_DEVICE_TYPE3;
2238 dev->handle_irq = type3_handle_irq;
2239 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2240 dev->event_types = type3_events;
2241 goto out;
2242 }
2243
2244 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2245 PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2246 if (pcidev) {
2247 dev->model = SONYPI_DEVICE_TYPE3;
2248 dev->handle_irq = type3_handle_irq;
2249 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2250 dev->event_types = type3_events;
2251 goto out;
2252 }
2253
2254 /* default */
2255 dev->model = SONYPI_DEVICE_TYPE2;
2256 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2257 dev->event_types = type2_events;
2258
2259 out:
2260 if (pcidev)
2261 pci_dev_put(pcidev);
2262
2263 pr_info("detected Type%d model\n",
2264 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2265 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2266 }
2267
2268 /* camera tests and poweron/poweroff */
2269 #define SONYPI_CAMERA_PICTURE 5
2270 #define SONYPI_CAMERA_CONTROL 0x10
2271
2272 #define SONYPI_CAMERA_BRIGHTNESS 0
2273 #define SONYPI_CAMERA_CONTRAST 1
2274 #define SONYPI_CAMERA_HUE 2
2275 #define SONYPI_CAMERA_COLOR 3
2276 #define SONYPI_CAMERA_SHARPNESS 4
2277
2278 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
2279 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
2280 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
2281 #define SONYPI_CAMERA_MUTE_MASK 0x40
2282
2283 /* the rest don't need a loop until not 0xff */
2284 #define SONYPI_CAMERA_AGC 6
2285 #define SONYPI_CAMERA_AGC_MASK 0x30
2286 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
2287
2288 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
2289 #define SONYPI_CAMERA_CONTROL 0x10
2290
2291 #define SONYPI_CAMERA_STATUS 7
2292 #define SONYPI_CAMERA_STATUS_READY 0x2
2293 #define SONYPI_CAMERA_STATUS_POSITION 0x4
2294
2295 #define SONYPI_DIRECTION_BACKWARDS 0x4
2296
2297 #define SONYPI_CAMERA_REVISION 8
2298 #define SONYPI_CAMERA_ROMVERSION 9
2299
2300 static int __sony_pic_camera_ready(void)
2301 {
2302 u8 v;
2303
2304 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2305 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2306 }
2307
2308 static int __sony_pic_camera_off(void)
2309 {
2310 if (!camera) {
2311 pr_warn("camera control not enabled\n");
2312 return -ENODEV;
2313 }
2314
2315 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2316 SONYPI_CAMERA_MUTE_MASK),
2317 ITERATIONS_SHORT);
2318
2319 if (spic_dev.camera_power) {
2320 sony_pic_call2(0x91, 0);
2321 spic_dev.camera_power = 0;
2322 }
2323 return 0;
2324 }
2325
2326 static int __sony_pic_camera_on(void)
2327 {
2328 int i, j, x;
2329
2330 if (!camera) {
2331 pr_warn("camera control not enabled\n");
2332 return -ENODEV;
2333 }
2334
2335 if (spic_dev.camera_power)
2336 return 0;
2337
2338 for (j = 5; j > 0; j--) {
2339
2340 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2341 msleep(10);
2342 sony_pic_call1(0x93);
2343
2344 for (i = 400; i > 0; i--) {
2345 if (__sony_pic_camera_ready())
2346 break;
2347 msleep(10);
2348 }
2349 if (i)
2350 break;
2351 }
2352
2353 if (j == 0) {
2354 pr_warn("failed to power on camera\n");
2355 return -ENODEV;
2356 }
2357
2358 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2359 0x5a),
2360 ITERATIONS_SHORT);
2361
2362 spic_dev.camera_power = 1;
2363 return 0;
2364 }
2365
2366 /* External camera command (exported to the motion eye v4l driver) */
2367 int sony_pic_camera_command(int command, u8 value)
2368 {
2369 if (!camera)
2370 return -EIO;
2371
2372 mutex_lock(&spic_dev.lock);
2373
2374 switch (command) {
2375 case SONY_PIC_COMMAND_SETCAMERA:
2376 if (value)
2377 __sony_pic_camera_on();
2378 else
2379 __sony_pic_camera_off();
2380 break;
2381 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2382 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2383 ITERATIONS_SHORT);
2384 break;
2385 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2386 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2387 ITERATIONS_SHORT);
2388 break;
2389 case SONY_PIC_COMMAND_SETCAMERAHUE:
2390 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2391 ITERATIONS_SHORT);
2392 break;
2393 case SONY_PIC_COMMAND_SETCAMERACOLOR:
2394 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2395 ITERATIONS_SHORT);
2396 break;
2397 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2398 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2399 ITERATIONS_SHORT);
2400 break;
2401 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2402 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2403 ITERATIONS_SHORT);
2404 break;
2405 case SONY_PIC_COMMAND_SETCAMERAAGC:
2406 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2407 ITERATIONS_SHORT);
2408 break;
2409 default:
2410 pr_err("sony_pic_camera_command invalid: %d\n", command);
2411 break;
2412 }
2413 mutex_unlock(&spic_dev.lock);
2414 return 0;
2415 }
2416 EXPORT_SYMBOL(sony_pic_camera_command);
2417
2418 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2419 static void __sony_pic_set_wwanpower(u8 state)
2420 {
2421 state = !!state;
2422 if (spic_dev.wwan_power == state)
2423 return;
2424 sony_pic_call2(0xB0, state);
2425 sony_pic_call1(0x82);
2426 spic_dev.wwan_power = state;
2427 }
2428
2429 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2430 struct device_attribute *attr,
2431 const char *buffer, size_t count)
2432 {
2433 unsigned long value;
2434 if (count > 31)
2435 return -EINVAL;
2436
2437 value = simple_strtoul(buffer, NULL, 10);
2438 mutex_lock(&spic_dev.lock);
2439 __sony_pic_set_wwanpower(value);
2440 mutex_unlock(&spic_dev.lock);
2441
2442 return count;
2443 }
2444
2445 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2446 struct device_attribute *attr, char *buffer)
2447 {
2448 ssize_t count;
2449 mutex_lock(&spic_dev.lock);
2450 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2451 mutex_unlock(&spic_dev.lock);
2452 return count;
2453 }
2454
2455 /* bluetooth subsystem power state */
2456 static void __sony_pic_set_bluetoothpower(u8 state)
2457 {
2458 state = !!state;
2459 if (spic_dev.bluetooth_power == state)
2460 return;
2461 sony_pic_call2(0x96, state);
2462 sony_pic_call1(0x82);
2463 spic_dev.bluetooth_power = state;
2464 }
2465
2466 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2467 struct device_attribute *attr,
2468 const char *buffer, size_t count)
2469 {
2470 unsigned long value;
2471 if (count > 31)
2472 return -EINVAL;
2473
2474 value = simple_strtoul(buffer, NULL, 10);
2475 mutex_lock(&spic_dev.lock);
2476 __sony_pic_set_bluetoothpower(value);
2477 mutex_unlock(&spic_dev.lock);
2478
2479 return count;
2480 }
2481
2482 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2483 struct device_attribute *attr, char *buffer)
2484 {
2485 ssize_t count = 0;
2486 mutex_lock(&spic_dev.lock);
2487 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2488 mutex_unlock(&spic_dev.lock);
2489 return count;
2490 }
2491
2492 /* fan speed */
2493 /* FAN0 information (reverse engineered from ACPI tables) */
2494 #define SONY_PIC_FAN0_STATUS 0x93
2495 static int sony_pic_set_fanspeed(unsigned long value)
2496 {
2497 return ec_write(SONY_PIC_FAN0_STATUS, value);
2498 }
2499
2500 static int sony_pic_get_fanspeed(u8 *value)
2501 {
2502 return ec_read(SONY_PIC_FAN0_STATUS, value);
2503 }
2504
2505 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2506 struct device_attribute *attr,
2507 const char *buffer, size_t count)
2508 {
2509 unsigned long value;
2510 if (count > 31)
2511 return -EINVAL;
2512
2513 value = simple_strtoul(buffer, NULL, 10);
2514 if (sony_pic_set_fanspeed(value))
2515 return -EIO;
2516
2517 return count;
2518 }
2519
2520 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2521 struct device_attribute *attr, char *buffer)
2522 {
2523 u8 value = 0;
2524 if (sony_pic_get_fanspeed(&value))
2525 return -EIO;
2526
2527 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2528 }
2529
2530 #define SPIC_ATTR(_name, _mode) \
2531 struct device_attribute spic_attr_##_name = __ATTR(_name, \
2532 _mode, sony_pic_## _name ##_show, \
2533 sony_pic_## _name ##_store)
2534
2535 static SPIC_ATTR(bluetoothpower, 0644);
2536 static SPIC_ATTR(wwanpower, 0644);
2537 static SPIC_ATTR(fanspeed, 0644);
2538
2539 static struct attribute *spic_attributes[] = {
2540 &spic_attr_bluetoothpower.attr,
2541 &spic_attr_wwanpower.attr,
2542 &spic_attr_fanspeed.attr,
2543 NULL
2544 };
2545
2546 static struct attribute_group spic_attribute_group = {
2547 .attrs = spic_attributes
2548 };
2549
2550 /******** SONYPI compatibility **********/
2551 #ifdef CONFIG_SONYPI_COMPAT
2552
2553 /* battery / brightness / temperature addresses */
2554 #define SONYPI_BAT_FLAGS 0x81
2555 #define SONYPI_LCD_LIGHT 0x96
2556 #define SONYPI_BAT1_PCTRM 0xa0
2557 #define SONYPI_BAT1_LEFT 0xa2
2558 #define SONYPI_BAT1_MAXRT 0xa4
2559 #define SONYPI_BAT2_PCTRM 0xa8
2560 #define SONYPI_BAT2_LEFT 0xaa
2561 #define SONYPI_BAT2_MAXRT 0xac
2562 #define SONYPI_BAT1_MAXTK 0xb0
2563 #define SONYPI_BAT1_FULL 0xb2
2564 #define SONYPI_BAT2_MAXTK 0xb8
2565 #define SONYPI_BAT2_FULL 0xba
2566 #define SONYPI_TEMP_STATUS 0xC1
2567
2568 struct sonypi_compat_s {
2569 struct fasync_struct *fifo_async;
2570 struct kfifo fifo;
2571 spinlock_t fifo_lock;
2572 wait_queue_head_t fifo_proc_list;
2573 atomic_t open_count;
2574 };
2575 static struct sonypi_compat_s sonypi_compat = {
2576 .open_count = ATOMIC_INIT(0),
2577 };
2578
2579 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2580 {
2581 return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2582 }
2583
2584 static int sonypi_misc_release(struct inode *inode, struct file *file)
2585 {
2586 atomic_dec(&sonypi_compat.open_count);
2587 return 0;
2588 }
2589
2590 static int sonypi_misc_open(struct inode *inode, struct file *file)
2591 {
2592 /* Flush input queue on first open */
2593 unsigned long flags;
2594
2595 spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2596
2597 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2598 kfifo_reset(&sonypi_compat.fifo);
2599
2600 spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2601
2602 return 0;
2603 }
2604
2605 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2606 size_t count, loff_t *pos)
2607 {
2608 ssize_t ret;
2609 unsigned char c;
2610
2611 if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2612 (file->f_flags & O_NONBLOCK))
2613 return -EAGAIN;
2614
2615 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2616 kfifo_len(&sonypi_compat.fifo) != 0);
2617 if (ret)
2618 return ret;
2619
2620 while (ret < count &&
2621 (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2622 &sonypi_compat.fifo_lock) == sizeof(c))) {
2623 if (put_user(c, buf++))
2624 return -EFAULT;
2625 ret++;
2626 }
2627
2628 if (ret > 0) {
2629 struct inode *inode = file->f_path.dentry->d_inode;
2630 inode->i_atime = current_fs_time(inode->i_sb);
2631 }
2632
2633 return ret;
2634 }
2635
2636 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2637 {
2638 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2639 if (kfifo_len(&sonypi_compat.fifo))
2640 return POLLIN | POLLRDNORM;
2641 return 0;
2642 }
2643
2644 static int ec_read16(u8 addr, u16 *value)
2645 {
2646 u8 val_lb, val_hb;
2647 if (ec_read(addr, &val_lb))
2648 return -1;
2649 if (ec_read(addr + 1, &val_hb))
2650 return -1;
2651 *value = val_lb | (val_hb << 8);
2652 return 0;
2653 }
2654
2655 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2656 unsigned long arg)
2657 {
2658 int ret = 0;
2659 void __user *argp = (void __user *)arg;
2660 u8 val8;
2661 u16 val16;
2662 int value;
2663
2664 mutex_lock(&spic_dev.lock);
2665 switch (cmd) {
2666 case SONYPI_IOCGBRT:
2667 if (sony_bl_props.dev == NULL) {
2668 ret = -EIO;
2669 break;
2670 }
2671 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2672 ret = -EIO;
2673 break;
2674 }
2675 val8 = ((value & 0xff) - 1) << 5;
2676 if (copy_to_user(argp, &val8, sizeof(val8)))
2677 ret = -EFAULT;
2678 break;
2679 case SONYPI_IOCSBRT:
2680 if (sony_bl_props.dev == NULL) {
2681 ret = -EIO;
2682 break;
2683 }
2684 if (copy_from_user(&val8, argp, sizeof(val8))) {
2685 ret = -EFAULT;
2686 break;
2687 }
2688 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2689 (val8 >> 5) + 1, NULL)) {
2690 ret = -EIO;
2691 break;
2692 }
2693 /* sync the backlight device status */
2694 sony_bl_props.dev->props.brightness =
2695 sony_backlight_get_brightness(sony_bl_props.dev);
2696 break;
2697 case SONYPI_IOCGBAT1CAP:
2698 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2699 ret = -EIO;
2700 break;
2701 }
2702 if (copy_to_user(argp, &val16, sizeof(val16)))
2703 ret = -EFAULT;
2704 break;
2705 case SONYPI_IOCGBAT1REM:
2706 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2707 ret = -EIO;
2708 break;
2709 }
2710 if (copy_to_user(argp, &val16, sizeof(val16)))
2711 ret = -EFAULT;
2712 break;
2713 case SONYPI_IOCGBAT2CAP:
2714 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2715 ret = -EIO;
2716 break;
2717 }
2718 if (copy_to_user(argp, &val16, sizeof(val16)))
2719 ret = -EFAULT;
2720 break;
2721 case SONYPI_IOCGBAT2REM:
2722 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2723 ret = -EIO;
2724 break;
2725 }
2726 if (copy_to_user(argp, &val16, sizeof(val16)))
2727 ret = -EFAULT;
2728 break;
2729 case SONYPI_IOCGBATFLAGS:
2730 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2731 ret = -EIO;
2732 break;
2733 }
2734 val8 &= 0x07;
2735 if (copy_to_user(argp, &val8, sizeof(val8)))
2736 ret = -EFAULT;
2737 break;
2738 case SONYPI_IOCGBLUE:
2739 val8 = spic_dev.bluetooth_power;
2740 if (copy_to_user(argp, &val8, sizeof(val8)))
2741 ret = -EFAULT;
2742 break;
2743 case SONYPI_IOCSBLUE:
2744 if (copy_from_user(&val8, argp, sizeof(val8))) {
2745 ret = -EFAULT;
2746 break;
2747 }
2748 __sony_pic_set_bluetoothpower(val8);
2749 break;
2750 /* FAN Controls */
2751 case SONYPI_IOCGFAN:
2752 if (sony_pic_get_fanspeed(&val8)) {
2753 ret = -EIO;
2754 break;
2755 }
2756 if (copy_to_user(argp, &val8, sizeof(val8)))
2757 ret = -EFAULT;
2758 break;
2759 case SONYPI_IOCSFAN:
2760 if (copy_from_user(&val8, argp, sizeof(val8))) {
2761 ret = -EFAULT;
2762 break;
2763 }
2764 if (sony_pic_set_fanspeed(val8))
2765 ret = -EIO;
2766 break;
2767 /* GET Temperature (useful under APM) */
2768 case SONYPI_IOCGTEMP:
2769 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2770 ret = -EIO;
2771 break;
2772 }
2773 if (copy_to_user(argp, &val8, sizeof(val8)))
2774 ret = -EFAULT;
2775 break;
2776 default:
2777 ret = -EINVAL;
2778 }
2779 mutex_unlock(&spic_dev.lock);
2780 return ret;
2781 }
2782
2783 static const struct file_operations sonypi_misc_fops = {
2784 .owner = THIS_MODULE,
2785 .read = sonypi_misc_read,
2786 .poll = sonypi_misc_poll,
2787 .open = sonypi_misc_open,
2788 .release = sonypi_misc_release,
2789 .fasync = sonypi_misc_fasync,
2790 .unlocked_ioctl = sonypi_misc_ioctl,
2791 .llseek = noop_llseek,
2792 };
2793
2794 static struct miscdevice sonypi_misc_device = {
2795 .minor = MISC_DYNAMIC_MINOR,
2796 .name = "sonypi",
2797 .fops = &sonypi_misc_fops,
2798 };
2799
2800 static void sonypi_compat_report_event(u8 event)
2801 {
2802 kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2803 sizeof(event), &sonypi_compat.fifo_lock);
2804 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2805 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2806 }
2807
2808 static int sonypi_compat_init(void)
2809 {
2810 int error;
2811
2812 spin_lock_init(&sonypi_compat.fifo_lock);
2813 error =
2814 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2815 if (error) {
2816 pr_err("kfifo_alloc failed\n");
2817 return error;
2818 }
2819
2820 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2821
2822 if (minor != -1)
2823 sonypi_misc_device.minor = minor;
2824 error = misc_register(&sonypi_misc_device);
2825 if (error) {
2826 pr_err("misc_register failed\n");
2827 goto err_free_kfifo;
2828 }
2829 if (minor == -1)
2830 pr_info("device allocated minor is %d\n",
2831 sonypi_misc_device.minor);
2832
2833 return 0;
2834
2835 err_free_kfifo:
2836 kfifo_free(&sonypi_compat.fifo);
2837 return error;
2838 }
2839
2840 static void sonypi_compat_exit(void)
2841 {
2842 misc_deregister(&sonypi_misc_device);
2843 kfifo_free(&sonypi_compat.fifo);
2844 }
2845 #else
2846 static int sonypi_compat_init(void) { return 0; }
2847 static void sonypi_compat_exit(void) { }
2848 static void sonypi_compat_report_event(u8 event) { }
2849 #endif /* CONFIG_SONYPI_COMPAT */
2850
2851 /*
2852 * ACPI callbacks
2853 */
2854 static acpi_status
2855 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2856 {
2857 u32 i;
2858 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2859
2860 switch (resource->type) {
2861 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2862 {
2863 /* start IO enumeration */
2864 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2865 if (!ioport)
2866 return AE_ERROR;
2867
2868 list_add(&ioport->list, &dev->ioports);
2869 return AE_OK;
2870 }
2871
2872 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2873 /* end IO enumeration */
2874 return AE_OK;
2875
2876 case ACPI_RESOURCE_TYPE_IRQ:
2877 {
2878 struct acpi_resource_irq *p = &resource->data.irq;
2879 struct sony_pic_irq *interrupt = NULL;
2880 if (!p || !p->interrupt_count) {
2881 /*
2882 * IRQ descriptors may have no IRQ# bits set,
2883 * particularly those those w/ _STA disabled
2884 */
2885 dprintk("Blank IRQ resource\n");
2886 return AE_OK;
2887 }
2888 for (i = 0; i < p->interrupt_count; i++) {
2889 if (!p->interrupts[i]) {
2890 pr_warn("Invalid IRQ %d\n",
2891 p->interrupts[i]);
2892 continue;
2893 }
2894 interrupt = kzalloc(sizeof(*interrupt),
2895 GFP_KERNEL);
2896 if (!interrupt)
2897 return AE_ERROR;
2898
2899 list_add(&interrupt->list, &dev->interrupts);
2900 interrupt->irq.triggering = p->triggering;
2901 interrupt->irq.polarity = p->polarity;
2902 interrupt->irq.sharable = p->sharable;
2903 interrupt->irq.interrupt_count = 1;
2904 interrupt->irq.interrupts[0] = p->interrupts[i];
2905 }
2906 return AE_OK;
2907 }
2908 case ACPI_RESOURCE_TYPE_IO:
2909 {
2910 struct acpi_resource_io *io = &resource->data.io;
2911 struct sony_pic_ioport *ioport =
2912 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2913 if (!io) {
2914 dprintk("Blank IO resource\n");
2915 return AE_OK;
2916 }
2917
2918 if (!ioport->io1.minimum) {
2919 memcpy(&ioport->io1, io, sizeof(*io));
2920 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2921 ioport->io1.address_length);
2922 }
2923 else if (!ioport->io2.minimum) {
2924 memcpy(&ioport->io2, io, sizeof(*io));
2925 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2926 ioport->io2.address_length);
2927 }
2928 else {
2929 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
2930 return AE_ERROR;
2931 }
2932 return AE_OK;
2933 }
2934 default:
2935 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2936 resource->type);
2937
2938 case ACPI_RESOURCE_TYPE_END_TAG:
2939 return AE_OK;
2940 }
2941 return AE_CTRL_TERMINATE;
2942 }
2943
2944 static int sony_pic_possible_resources(struct acpi_device *device)
2945 {
2946 int result = 0;
2947 acpi_status status = AE_OK;
2948
2949 if (!device)
2950 return -EINVAL;
2951
2952 /* get device status */
2953 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2954 dprintk("Evaluating _STA\n");
2955 result = acpi_bus_get_status(device);
2956 if (result) {
2957 pr_warn("Unable to read status\n");
2958 goto end;
2959 }
2960
2961 if (!device->status.enabled)
2962 dprintk("Device disabled\n");
2963 else
2964 dprintk("Device enabled\n");
2965
2966 /*
2967 * Query and parse 'method'
2968 */
2969 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2970 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2971 sony_pic_read_possible_resource, &spic_dev);
2972 if (ACPI_FAILURE(status)) {
2973 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
2974 result = -ENODEV;
2975 }
2976 end:
2977 return result;
2978 }
2979
2980 /*
2981 * Disable the spic device by calling its _DIS method
2982 */
2983 static int sony_pic_disable(struct acpi_device *device)
2984 {
2985 acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2986 NULL);
2987
2988 if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2989 return -ENXIO;
2990
2991 dprintk("Device disabled\n");
2992 return 0;
2993 }
2994
2995
2996 /*
2997 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2998 *
2999 * Call _SRS to set current resources
3000 */
3001 static int sony_pic_enable(struct acpi_device *device,
3002 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
3003 {
3004 acpi_status status;
3005 int result = 0;
3006 /* Type 1 resource layout is:
3007 * IO
3008 * IO
3009 * IRQNoFlags
3010 * End
3011 *
3012 * Type 2 and 3 resource layout is:
3013 * IO
3014 * IRQNoFlags
3015 * End
3016 */
3017 struct {
3018 struct acpi_resource res1;
3019 struct acpi_resource res2;
3020 struct acpi_resource res3;
3021 struct acpi_resource res4;
3022 } *resource;
3023 struct acpi_buffer buffer = { 0, NULL };
3024
3025 if (!ioport || !irq)
3026 return -EINVAL;
3027
3028 /* init acpi_buffer */
3029 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
3030 if (!resource)
3031 return -ENOMEM;
3032
3033 buffer.length = sizeof(*resource) + 1;
3034 buffer.pointer = resource;
3035
3036 /* setup Type 1 resources */
3037 if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
3038
3039 /* setup io resources */
3040 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3041 resource->res1.length = sizeof(struct acpi_resource);
3042 memcpy(&resource->res1.data.io, &ioport->io1,
3043 sizeof(struct acpi_resource_io));
3044
3045 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
3046 resource->res2.length = sizeof(struct acpi_resource);
3047 memcpy(&resource->res2.data.io, &ioport->io2,
3048 sizeof(struct acpi_resource_io));
3049
3050 /* setup irq resource */
3051 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
3052 resource->res3.length = sizeof(struct acpi_resource);
3053 memcpy(&resource->res3.data.irq, &irq->irq,
3054 sizeof(struct acpi_resource_irq));
3055 /* we requested a shared irq */
3056 resource->res3.data.irq.sharable = ACPI_SHARED;
3057
3058 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
3059
3060 }
3061 /* setup Type 2/3 resources */
3062 else {
3063 /* setup io resource */
3064 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3065 resource->res1.length = sizeof(struct acpi_resource);
3066 memcpy(&resource->res1.data.io, &ioport->io1,
3067 sizeof(struct acpi_resource_io));
3068
3069 /* setup irq resource */
3070 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
3071 resource->res2.length = sizeof(struct acpi_resource);
3072 memcpy(&resource->res2.data.irq, &irq->irq,
3073 sizeof(struct acpi_resource_irq));
3074 /* we requested a shared irq */
3075 resource->res2.data.irq.sharable = ACPI_SHARED;
3076
3077 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
3078 }
3079
3080 /* Attempt to set the resource */
3081 dprintk("Evaluating _SRS\n");
3082 status = acpi_set_current_resources(device->handle, &buffer);
3083
3084 /* check for total failure */
3085 if (ACPI_FAILURE(status)) {
3086 pr_err("Error evaluating _SRS\n");
3087 result = -ENODEV;
3088 goto end;
3089 }
3090
3091 /* Necessary device initializations calls (from sonypi) */
3092 sony_pic_call1(0x82);
3093 sony_pic_call2(0x81, 0xff);
3094 sony_pic_call1(compat ? 0x92 : 0x82);
3095
3096 end:
3097 kfree(resource);
3098 return result;
3099 }
3100
3101 /*****************
3102 *
3103 * ISR: some event is available
3104 *
3105 *****************/
3106 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
3107 {
3108 int i, j;
3109 u8 ev = 0;
3110 u8 data_mask = 0;
3111 u8 device_event = 0;
3112
3113 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
3114
3115 ev = inb_p(dev->cur_ioport->io1.minimum);
3116 if (dev->cur_ioport->io2.minimum)
3117 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3118 else
3119 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3120 dev->evport_offset);
3121
3122 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3123 ev, data_mask, dev->cur_ioport->io1.minimum,
3124 dev->evport_offset);
3125
3126 if (ev == 0x00 || ev == 0xff)
3127 return IRQ_HANDLED;
3128
3129 for (i = 0; dev->event_types[i].mask; i++) {
3130
3131 if ((data_mask & dev->event_types[i].data) !=
3132 dev->event_types[i].data)
3133 continue;
3134
3135 if (!(mask & dev->event_types[i].mask))
3136 continue;
3137
3138 for (j = 0; dev->event_types[i].events[j].event; j++) {
3139 if (ev == dev->event_types[i].events[j].data) {
3140 device_event =
3141 dev->event_types[i].events[j].event;
3142 /* some events may require ignoring */
3143 if (!device_event)
3144 return IRQ_HANDLED;
3145 goto found;
3146 }
3147 }
3148 }
3149 /* Still not able to decode the event try to pass
3150 * it over to the minidriver
3151 */
3152 if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3153 return IRQ_HANDLED;
3154
3155 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3156 ev, data_mask, dev->cur_ioport->io1.minimum,
3157 dev->evport_offset);
3158 return IRQ_HANDLED;
3159
3160 found:
3161 sony_laptop_report_input_event(device_event);
3162 acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3163 sonypi_compat_report_event(device_event);
3164 return IRQ_HANDLED;
3165 }
3166
3167 /*****************
3168 *
3169 * ACPI driver
3170 *
3171 *****************/
3172 static int sony_pic_remove(struct acpi_device *device, int type)
3173 {
3174 struct sony_pic_ioport *io, *tmp_io;
3175 struct sony_pic_irq *irq, *tmp_irq;
3176
3177 if (sony_pic_disable(device)) {
3178 pr_err("Couldn't disable device\n");
3179 return -ENXIO;
3180 }
3181
3182 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3183 release_region(spic_dev.cur_ioport->io1.minimum,
3184 spic_dev.cur_ioport->io1.address_length);
3185 if (spic_dev.cur_ioport->io2.minimum)
3186 release_region(spic_dev.cur_ioport->io2.minimum,
3187 spic_dev.cur_ioport->io2.address_length);
3188
3189 sonypi_compat_exit();
3190
3191 sony_laptop_remove_input();
3192
3193 /* pf attrs */
3194 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3195 sony_pf_remove();
3196
3197 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3198 list_del(&io->list);
3199 kfree(io);
3200 }
3201 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3202 list_del(&irq->list);
3203 kfree(irq);
3204 }
3205 spic_dev.cur_ioport = NULL;
3206 spic_dev.cur_irq = NULL;
3207
3208 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3209 return 0;
3210 }
3211
3212 static int sony_pic_add(struct acpi_device *device)
3213 {
3214 int result;
3215 struct sony_pic_ioport *io, *tmp_io;
3216 struct sony_pic_irq *irq, *tmp_irq;
3217
3218 pr_info("%s v%s\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
3219
3220 spic_dev.acpi_dev = device;
3221 strcpy(acpi_device_class(device), "sony/hotkey");
3222 sony_pic_detect_device_type(&spic_dev);
3223 mutex_init(&spic_dev.lock);
3224
3225 /* read _PRS resources */
3226 result = sony_pic_possible_resources(device);
3227 if (result) {
3228 pr_err("Unable to read possible resources\n");
3229 goto err_free_resources;
3230 }
3231
3232 /* setup input devices and helper fifo */
3233 result = sony_laptop_setup_input(device);
3234 if (result) {
3235 pr_err("Unable to create input devices\n");
3236 goto err_free_resources;
3237 }
3238
3239 if (sonypi_compat_init())
3240 goto err_remove_input;
3241
3242 /* request io port */
3243 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3244 if (request_region(io->io1.minimum, io->io1.address_length,
3245 "Sony Programmable I/O Device")) {
3246 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3247 io->io1.minimum, io->io1.maximum,
3248 io->io1.address_length);
3249 /* Type 1 have 2 ioports */
3250 if (io->io2.minimum) {
3251 if (request_region(io->io2.minimum,
3252 io->io2.address_length,
3253 "Sony Programmable I/O Device")) {
3254 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3255 io->io2.minimum, io->io2.maximum,
3256 io->io2.address_length);
3257 spic_dev.cur_ioport = io;
3258 break;
3259 }
3260 else {
3261 dprintk("Unable to get I/O port2: "
3262 "0x%.4x (0x%.4x) + 0x%.2x\n",
3263 io->io2.minimum, io->io2.maximum,
3264 io->io2.address_length);
3265 release_region(io->io1.minimum,
3266 io->io1.address_length);
3267 }
3268 }
3269 else {
3270 spic_dev.cur_ioport = io;
3271 break;
3272 }
3273 }
3274 }
3275 if (!spic_dev.cur_ioport) {
3276 pr_err("Failed to request_region\n");
3277 result = -ENODEV;
3278 goto err_remove_compat;
3279 }
3280
3281 /* request IRQ */
3282 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3283 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3284 0, "sony-laptop", &spic_dev)) {
3285 dprintk("IRQ: %d - triggering: %d - "
3286 "polarity: %d - shr: %d\n",
3287 irq->irq.interrupts[0],
3288 irq->irq.triggering,
3289 irq->irq.polarity,
3290 irq->irq.sharable);
3291 spic_dev.cur_irq = irq;
3292 break;
3293 }
3294 }
3295 if (!spic_dev.cur_irq) {
3296 pr_err("Failed to request_irq\n");
3297 result = -ENODEV;
3298 goto err_release_region;
3299 }
3300
3301 /* set resource status _SRS */
3302 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3303 if (result) {
3304 pr_err("Couldn't enable device\n");
3305 goto err_free_irq;
3306 }
3307
3308 spic_dev.bluetooth_power = -1;
3309 /* create device attributes */
3310 result = sony_pf_add();
3311 if (result)
3312 goto err_disable_device;
3313
3314 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3315 if (result)
3316 goto err_remove_pf;
3317
3318 return 0;
3319
3320 err_remove_pf:
3321 sony_pf_remove();
3322
3323 err_disable_device:
3324 sony_pic_disable(device);
3325
3326 err_free_irq:
3327 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3328
3329 err_release_region:
3330 release_region(spic_dev.cur_ioport->io1.minimum,
3331 spic_dev.cur_ioport->io1.address_length);
3332 if (spic_dev.cur_ioport->io2.minimum)
3333 release_region(spic_dev.cur_ioport->io2.minimum,
3334 spic_dev.cur_ioport->io2.address_length);
3335
3336 err_remove_compat:
3337 sonypi_compat_exit();
3338
3339 err_remove_input:
3340 sony_laptop_remove_input();
3341
3342 err_free_resources:
3343 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3344 list_del(&io->list);
3345 kfree(io);
3346 }
3347 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3348 list_del(&irq->list);
3349 kfree(irq);
3350 }
3351 spic_dev.cur_ioport = NULL;
3352 spic_dev.cur_irq = NULL;
3353
3354 return result;
3355 }
3356
3357 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3358 {
3359 if (sony_pic_disable(device))
3360 return -ENXIO;
3361 return 0;
3362 }
3363
3364 static int sony_pic_resume(struct acpi_device *device)
3365 {
3366 sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3367 return 0;
3368 }
3369
3370 static const struct acpi_device_id sony_pic_device_ids[] = {
3371 {SONY_PIC_HID, 0},
3372 {"", 0},
3373 };
3374
3375 static struct acpi_driver sony_pic_driver = {
3376 .name = SONY_PIC_DRIVER_NAME,
3377 .class = SONY_PIC_CLASS,
3378 .ids = sony_pic_device_ids,
3379 .owner = THIS_MODULE,
3380 .ops = {
3381 .add = sony_pic_add,
3382 .remove = sony_pic_remove,
3383 .suspend = sony_pic_suspend,
3384 .resume = sony_pic_resume,
3385 },
3386 };
3387
3388 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3389 {
3390 .ident = "Sony Vaio",
3391 .matches = {
3392 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3393 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3394 },
3395 },
3396 {
3397 .ident = "Sony Vaio",
3398 .matches = {
3399 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3400 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3401 },
3402 },
3403 { }
3404 };
3405
3406 static int __init sony_laptop_init(void)
3407 {
3408 int result;
3409
3410 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3411 result = acpi_bus_register_driver(&sony_pic_driver);
3412 if (result) {
3413 pr_err("Unable to register SPIC driver\n");
3414 goto out;
3415 }
3416 spic_drv_registered = 1;
3417 }
3418
3419 result = acpi_bus_register_driver(&sony_nc_driver);
3420 if (result) {
3421 pr_err("Unable to register SNC driver\n");
3422 goto out_unregister_pic;
3423 }
3424
3425 return 0;
3426
3427 out_unregister_pic:
3428 if (spic_drv_registered)
3429 acpi_bus_unregister_driver(&sony_pic_driver);
3430 out:
3431 return result;
3432 }
3433
3434 static void __exit sony_laptop_exit(void)
3435 {
3436 acpi_bus_unregister_driver(&sony_nc_driver);
3437 if (spic_drv_registered)
3438 acpi_bus_unregister_driver(&sony_pic_driver);
3439 }
3440
3441 module_init(sony_laptop_init);
3442 module_exit(sony_laptop_exit);