1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * ACPI Sony Notebook Control Driver (SNC and SPIC)
4 *
5 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
6 * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
7 *
8 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
9 * which are copyrighted by their respective authors.
10 *
11 * The SNY6001 driver part is based on the sonypi driver which includes
12 * material from:
13 *
14 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
15 *
16 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
17 *
18 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
19 *
20 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
21 *
22 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
23 *
24 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
25 *
26 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
27 *
28 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
29 */
30
31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32
33 #include <linux/kernel.h>
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/init.h>
37 #include <linux/types.h>
38 #include <linux/backlight.h>
39 #include <linux/platform_device.h>
40 #include <linux/err.h>
41 #include <linux/dmi.h>
42 #include <linux/pci.h>
43 #include <linux/interrupt.h>
44 #include <linux/delay.h>
45 #include <linux/input.h>
46 #include <linux/kfifo.h>
47 #include <linux/workqueue.h>
48 #include <linux/acpi.h>
49 #include <linux/slab.h>
50 #include <linux/sonypi.h>
51 #include <linux/sony-laptop.h>
52 #include <linux/rfkill.h>
53 #ifdef CONFIG_SONYPI_COMPAT
54 #include <linux/poll.h>
55 #include <linux/miscdevice.h>
56 #endif
57 #include <linux/uaccess.h>
58 #include <acpi/video.h>
59
60 #define dprintk(fmt, ...) \
61 do { \
62 if (debug) \
63 pr_warn(fmt, ##__VA_ARGS__); \
64 } while (0)
65
66 #define SONY_NC_CLASS "sony-nc"
67 #define SONY_NC_HID "SNY5001"
68 #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
69
70 #define SONY_PIC_CLASS "sony-pic"
71 #define SONY_PIC_HID "SNY6001"
72 #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
73
74 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
75 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
76 MODULE_LICENSE("GPL");
77
78 static int debug;
79 module_param(debug, int, 0);
80 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
81 "the development of this driver");
82
83 static int no_spic; /* = 0 */
84 module_param(no_spic, int, 0444);
85 MODULE_PARM_DESC(no_spic,
86 "set this if you don't want to enable the SPIC device");
87
88 static int compat; /* = 0 */
89 module_param(compat, int, 0444);
90 MODULE_PARM_DESC(compat,
91 "set this if you want to enable backward compatibility mode");
92
93 static unsigned long mask = 0xffffffff;
94 module_param(mask, ulong, 0644);
95 MODULE_PARM_DESC(mask,
96 "set this to the mask of event you want to enable (see doc)");
97
98 static int camera; /* = 0 */
99 module_param(camera, int, 0444);
100 MODULE_PARM_DESC(camera,
101 "set this to 1 to enable Motion Eye camera controls "
102 "(only use it if you have a C1VE or C1VN model)");
103
104 #ifdef CONFIG_SONYPI_COMPAT
105 static int minor = -1;
106 module_param(minor, int, 0);
107 MODULE_PARM_DESC(minor,
108 "minor number of the misc device for the SPIC compatibility code, "
109 "default is -1 (automatic)");
110 #endif
111
112 static int kbd_backlight = -1;
113 module_param(kbd_backlight, int, 0444);
114 MODULE_PARM_DESC(kbd_backlight,
115 "set this to 0 to disable keyboard backlight, "
116 "1 to enable it with automatic control and 2 to have it always "
117 "on (default: no change from current value)");
118
119 static int kbd_backlight_timeout = -1;
120 module_param(kbd_backlight_timeout, int, 0444);
121 MODULE_PARM_DESC(kbd_backlight_timeout,
122 "meaningful values vary from 0 to 3 and their meaning depends "
123 "on the model (default: no change from current value)");
124
125 #ifdef CONFIG_PM_SLEEP
126 static void sony_nc_thermal_resume(void);
127 #endif
128 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
129 unsigned int handle);
130 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
131 unsigned int handle);
132
133 static int sony_nc_battery_care_setup(struct platform_device *pd,
134 unsigned int handle);
135 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
136
137 static int sony_nc_thermal_setup(struct platform_device *pd);
138 static void sony_nc_thermal_cleanup(struct platform_device *pd);
139
140 static int sony_nc_lid_resume_setup(struct platform_device *pd,
141 unsigned int handle);
142 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
143
144 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
145 unsigned int handle);
146 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
147 static int __sony_nc_gfx_switch_status_get(void);
148
149 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
150 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
151
152 static int sony_nc_lowbatt_setup(struct platform_device *pd);
153 static void sony_nc_lowbatt_cleanup(struct platform_device *pd);
154
155 static int sony_nc_fanspeed_setup(struct platform_device *pd);
156 static void sony_nc_fanspeed_cleanup(struct platform_device *pd);
157
158 static int sony_nc_usb_charge_setup(struct platform_device *pd);
159 static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
160
161 static int sony_nc_panelid_setup(struct platform_device *pd);
162 static void sony_nc_panelid_cleanup(struct platform_device *pd);
163
164 static int sony_nc_smart_conn_setup(struct platform_device *pd);
165 static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
166
167 static int sony_nc_touchpad_setup(struct platform_device *pd,
168 unsigned int handle);
169 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
170
171 enum sony_nc_rfkill {
172 SONY_WIFI,
173 SONY_BLUETOOTH,
174 SONY_WWAN,
175 SONY_WIMAX,
176 N_SONY_RFKILL,
177 };
178
179 static int sony_rfkill_handle;
180 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
181 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
182 static int sony_nc_rfkill_setup(struct acpi_device *device,
183 unsigned int handle);
184 static void sony_nc_rfkill_cleanup(void);
185 static void sony_nc_rfkill_update(void);
186
187 /*********** Input Devices ***********/
188
189 #define SONY_LAPTOP_BUF_SIZE 128
190 struct sony_laptop_input_s {
191 atomic_t users;
192 struct input_dev *jog_dev;
193 struct input_dev *key_dev;
194 struct kfifo fifo;
195 spinlock_t fifo_lock;
196 struct timer_list release_key_timer;
197 };
198
199 static struct sony_laptop_input_s sony_laptop_input = {
200 .users = ATOMIC_INIT(0),
201 };
202
203 struct sony_laptop_keypress {
204 struct input_dev *dev;
205 int key;
206 };
207
208 /* Correspondance table between sonypi events
209 * and input layer indexes in the keymap
210 */
211 static const int sony_laptop_input_index[] = {
212 -1, /* 0 no event */
213 -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */
214 -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */
215 -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
216 -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
217 -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */
218 -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */
219 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */
220 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */
221 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
222 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
223 4, /* 11 SONYPI_EVENT_FNKEY_ESC */
224 5, /* 12 SONYPI_EVENT_FNKEY_F1 */
225 6, /* 13 SONYPI_EVENT_FNKEY_F2 */
226 7, /* 14 SONYPI_EVENT_FNKEY_F3 */
227 8, /* 15 SONYPI_EVENT_FNKEY_F4 */
228 9, /* 16 SONYPI_EVENT_FNKEY_F5 */
229 10, /* 17 SONYPI_EVENT_FNKEY_F6 */
230 11, /* 18 SONYPI_EVENT_FNKEY_F7 */
231 12, /* 19 SONYPI_EVENT_FNKEY_F8 */
232 13, /* 20 SONYPI_EVENT_FNKEY_F9 */
233 14, /* 21 SONYPI_EVENT_FNKEY_F10 */
234 15, /* 22 SONYPI_EVENT_FNKEY_F11 */
235 16, /* 23 SONYPI_EVENT_FNKEY_F12 */
236 17, /* 24 SONYPI_EVENT_FNKEY_1 */
237 18, /* 25 SONYPI_EVENT_FNKEY_2 */
238 19, /* 26 SONYPI_EVENT_FNKEY_D */
239 20, /* 27 SONYPI_EVENT_FNKEY_E */
240 21, /* 28 SONYPI_EVENT_FNKEY_F */
241 22, /* 29 SONYPI_EVENT_FNKEY_S */
242 23, /* 30 SONYPI_EVENT_FNKEY_B */
243 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
244 25, /* 32 SONYPI_EVENT_PKEY_P1 */
245 26, /* 33 SONYPI_EVENT_PKEY_P2 */
246 27, /* 34 SONYPI_EVENT_PKEY_P3 */
247 28, /* 35 SONYPI_EVENT_BACK_PRESSED */
248 -1, /* 36 SONYPI_EVENT_LID_CLOSED */
249 -1, /* 37 SONYPI_EVENT_LID_OPENED */
250 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */
251 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
252 31, /* 40 SONYPI_EVENT_HELP_PRESSED */
253 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */
254 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
255 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
256 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
257 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
258 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
259 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
260 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
261 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
262 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */
263 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
264 43, /* 52 SONYPI_EVENT_MEYE_FACE */
265 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
266 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
267 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
268 -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
269 -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */
270 -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */
271 -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */
272 47, /* 60 SONYPI_EVENT_WIRELESS_ON */
273 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */
274 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
275 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
276 51, /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
277 52, /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
278 53, /* 66 SONYPI_EVENT_PKEY_P4 */
279 54, /* 67 SONYPI_EVENT_PKEY_P5 */
280 55, /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
281 56, /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
282 57, /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
283 -1, /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
284 58, /* 72 SONYPI_EVENT_MEDIA_PRESSED */
285 59, /* 72 SONYPI_EVENT_VENDOR_PRESSED */
286 };
287
288 static int sony_laptop_input_keycode_map[] = {
289 KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
290 KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
291 KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
292 KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
293 KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
294 KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
295 KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
296 KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
297 KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
298 KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
299 KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
300 KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
301 KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
302 KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
303 KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
304 KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
305 KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
306 KEY_FN_1, /* 17 SONYPI_EVENT_FNKEY_1 */
307 KEY_FN_2, /* 18 SONYPI_EVENT_FNKEY_2 */
308 KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
309 KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
310 KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
311 KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
312 KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
313 KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
314 KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
315 KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
316 KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
317 KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
318 KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
319 KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
320 KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
321 KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
322 KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
323 KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
324 KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
325 KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
326 KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
327 KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
328 KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
329 KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
330 KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
331 BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
332 KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
333 KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
334 KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
335 KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
336 KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
337 KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
338 KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
339 KEY_ZOOMOUT, /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
340 KEY_EJECTCD, /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
341 KEY_F13, /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
342 KEY_PROG4, /* 53 SONYPI_EVENT_PKEY_P4 */
343 KEY_F14, /* 54 SONYPI_EVENT_PKEY_P5 */
344 KEY_F15, /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
345 KEY_VOLUMEUP, /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
346 KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
347 KEY_MEDIA, /* 58 SONYPI_EVENT_MEDIA_PRESSED */
348 KEY_VENDOR, /* 59 SONYPI_EVENT_VENDOR_PRESSED */
349 };
350
351 /* release buttons after a short delay if pressed */
do_sony_laptop_release_key(struct timer_list * unused)352 static void do_sony_laptop_release_key(struct timer_list *unused)
353 {
354 struct sony_laptop_keypress kp;
355 unsigned long flags;
356
357 spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
358
359 if (kfifo_out(&sony_laptop_input.fifo,
360 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
361 input_report_key(kp.dev, kp.key, 0);
362 input_sync(kp.dev);
363 }
364
365 /* If there is something in the fifo schedule next release. */
366 if (kfifo_len(&sony_laptop_input.fifo) != 0)
367 mod_timer(&sony_laptop_input.release_key_timer,
368 jiffies + msecs_to_jiffies(10));
369
370 spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
371 }
372
373 /* forward event to the input subsystem */
sony_laptop_report_input_event(u8 event)374 static void sony_laptop_report_input_event(u8 event)
375 {
376 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
377 struct input_dev *key_dev = sony_laptop_input.key_dev;
378 struct sony_laptop_keypress kp = { NULL };
379 int scancode = -1;
380
381 if (event == SONYPI_EVENT_FNKEY_RELEASED ||
382 event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
383 /* Nothing, not all VAIOs generate this event */
384 return;
385 }
386
387 /* report events */
388 switch (event) {
389 /* jog_dev events */
390 case SONYPI_EVENT_JOGDIAL_UP:
391 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
392 input_report_rel(jog_dev, REL_WHEEL, 1);
393 input_sync(jog_dev);
394 return;
395
396 case SONYPI_EVENT_JOGDIAL_DOWN:
397 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
398 input_report_rel(jog_dev, REL_WHEEL, -1);
399 input_sync(jog_dev);
400 return;
401
402 /* key_dev events */
403 case SONYPI_EVENT_JOGDIAL_PRESSED:
404 kp.key = BTN_MIDDLE;
405 kp.dev = jog_dev;
406 break;
407
408 default:
409 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
410 dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
411 break;
412 }
413 if ((scancode = sony_laptop_input_index[event]) != -1) {
414 kp.key = sony_laptop_input_keycode_map[scancode];
415 if (kp.key != KEY_UNKNOWN)
416 kp.dev = key_dev;
417 }
418 break;
419 }
420
421 if (kp.dev) {
422 /* if we have a scancode we emit it so we can always
423 remap the key */
424 if (scancode != -1)
425 input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
426 input_report_key(kp.dev, kp.key, 1);
427 input_sync(kp.dev);
428
429 /* schedule key release */
430 kfifo_in_locked(&sony_laptop_input.fifo,
431 (unsigned char *)&kp, sizeof(kp),
432 &sony_laptop_input.fifo_lock);
433 mod_timer(&sony_laptop_input.release_key_timer,
434 jiffies + msecs_to_jiffies(10));
435 } else
436 dprintk("unknown input event %.2x\n", event);
437 }
438
sony_laptop_setup_input(struct acpi_device * acpi_device)439 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
440 {
441 struct input_dev *jog_dev;
442 struct input_dev *key_dev;
443 int i;
444 int error;
445
446 /* don't run again if already initialized */
447 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
448 return 0;
449
450 /* kfifo */
451 spin_lock_init(&sony_laptop_input.fifo_lock);
452 error = kfifo_alloc(&sony_laptop_input.fifo,
453 SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
454 if (error) {
455 pr_err("kfifo_alloc failed\n");
456 goto err_dec_users;
457 }
458
459 timer_setup(&sony_laptop_input.release_key_timer,
460 do_sony_laptop_release_key, 0);
461
462 /* input keys */
463 key_dev = input_allocate_device();
464 if (!key_dev) {
465 error = -ENOMEM;
466 goto err_free_kfifo;
467 }
468
469 key_dev->name = "Sony Vaio Keys";
470 key_dev->id.bustype = BUS_ISA;
471 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
472 key_dev->dev.parent = &acpi_device->dev;
473
474 /* Initialize the Input Drivers: special keys */
475 input_set_capability(key_dev, EV_MSC, MSC_SCAN);
476
477 __set_bit(EV_KEY, key_dev->evbit);
478 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
479 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
480 key_dev->keycode = &sony_laptop_input_keycode_map;
481 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
482 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
483 __clear_bit(KEY_RESERVED, key_dev->keybit);
484
485 error = input_register_device(key_dev);
486 if (error)
487 goto err_free_keydev;
488
489 sony_laptop_input.key_dev = key_dev;
490
491 /* jogdial */
492 jog_dev = input_allocate_device();
493 if (!jog_dev) {
494 error = -ENOMEM;
495 goto err_unregister_keydev;
496 }
497
498 jog_dev->name = "Sony Vaio Jogdial";
499 jog_dev->id.bustype = BUS_ISA;
500 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
501 jog_dev->dev.parent = &acpi_device->dev;
502
503 input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
504 input_set_capability(jog_dev, EV_REL, REL_WHEEL);
505
506 error = input_register_device(jog_dev);
507 if (error)
508 goto err_free_jogdev;
509
510 sony_laptop_input.jog_dev = jog_dev;
511
512 return 0;
513
514 err_free_jogdev:
515 input_free_device(jog_dev);
516
517 err_unregister_keydev:
518 input_unregister_device(key_dev);
519 /* to avoid kref underflow below at input_free_device */
520 key_dev = NULL;
521
522 err_free_keydev:
523 input_free_device(key_dev);
524
525 err_free_kfifo:
526 kfifo_free(&sony_laptop_input.fifo);
527
528 err_dec_users:
529 atomic_dec(&sony_laptop_input.users);
530 return error;
531 }
532
sony_laptop_remove_input(void)533 static void sony_laptop_remove_input(void)
534 {
535 struct sony_laptop_keypress kp = { NULL };
536
537 /* Cleanup only after the last user has gone */
538 if (!atomic_dec_and_test(&sony_laptop_input.users))
539 return;
540
541 del_timer_sync(&sony_laptop_input.release_key_timer);
542
543 /*
544 * Generate key-up events for remaining keys. Note that we don't
545 * need locking since nobody is adding new events to the kfifo.
546 */
547 while (kfifo_out(&sony_laptop_input.fifo,
548 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
549 input_report_key(kp.dev, kp.key, 0);
550 input_sync(kp.dev);
551 }
552
553 /* destroy input devs */
554 input_unregister_device(sony_laptop_input.key_dev);
555 sony_laptop_input.key_dev = NULL;
556
557 if (sony_laptop_input.jog_dev) {
558 input_unregister_device(sony_laptop_input.jog_dev);
559 sony_laptop_input.jog_dev = NULL;
560 }
561
562 kfifo_free(&sony_laptop_input.fifo);
563 }
564
565 /*********** Platform Device ***********/
566
567 static atomic_t sony_pf_users = ATOMIC_INIT(0);
568 static struct platform_driver sony_pf_driver = {
569 .driver = {
570 .name = "sony-laptop",
571 }
572 };
573 static struct platform_device *sony_pf_device;
574
sony_pf_add(void)575 static int sony_pf_add(void)
576 {
577 int ret = 0;
578
579 /* don't run again if already initialized */
580 if (atomic_add_return(1, &sony_pf_users) > 1)
581 return 0;
582
583 ret = platform_driver_register(&sony_pf_driver);
584 if (ret)
585 goto out;
586
587 sony_pf_device = platform_device_alloc("sony-laptop", -1);
588 if (!sony_pf_device) {
589 ret = -ENOMEM;
590 goto out_platform_registered;
591 }
592
593 ret = platform_device_add(sony_pf_device);
594 if (ret)
595 goto out_platform_alloced;
596
597 return 0;
598
599 out_platform_alloced:
600 platform_device_put(sony_pf_device);
601 sony_pf_device = NULL;
602 out_platform_registered:
603 platform_driver_unregister(&sony_pf_driver);
604 out:
605 atomic_dec(&sony_pf_users);
606 return ret;
607 }
608
sony_pf_remove(void)609 static void sony_pf_remove(void)
610 {
611 /* deregister only after the last user has gone */
612 if (!atomic_dec_and_test(&sony_pf_users))
613 return;
614
615 platform_device_unregister(sony_pf_device);
616 platform_driver_unregister(&sony_pf_driver);
617 }
618
619 /*********** SNC (SNY5001) Device ***********/
620
621 /* the device uses 1-based values, while the backlight subsystem uses
622 0-based values */
623 #define SONY_MAX_BRIGHTNESS 8
624
625 #define SNC_VALIDATE_IN 0
626 #define SNC_VALIDATE_OUT 1
627
628 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
629 char *);
630 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
631 const char *, size_t);
632 static int boolean_validate(const int, const int);
633 static int brightness_default_validate(const int, const int);
634
635 struct sony_nc_value {
636 char *name; /* name of the entry */
637 char **acpiget; /* names of the ACPI get function */
638 char **acpiset; /* names of the ACPI set function */
639 int (*validate)(const int, const int); /* input/output validation */
640 int value; /* current setting */
641 int valid; /* Has ever been set */
642 int debug; /* active only in debug mode ? */
643 struct device_attribute devattr; /* sysfs attribute */
644 };
645
646 #define SNC_HANDLE_NAMES(_name, _values...) \
647 static char *snc_##_name[] = { _values, NULL }
648
649 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
650 { \
651 .name = __stringify(_name), \
652 .acpiget = _getters, \
653 .acpiset = _setters, \
654 .validate = _validate, \
655 .debug = _debug, \
656 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
657 }
658
659 #define SNC_HANDLE_NULL { .name = NULL }
660
661 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
662
663 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
664 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
665
666 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
667 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
668
669 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
670 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
671
672 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
673 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
674
675 SNC_HANDLE_NAMES(lidstate_get, "GLID");
676
677 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
678 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
679
680 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
681 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
682
683 SNC_HANDLE_NAMES(PID_get, "GPID");
684
685 SNC_HANDLE_NAMES(CTR_get, "GCTR");
686 SNC_HANDLE_NAMES(CTR_set, "SCTR");
687
688 SNC_HANDLE_NAMES(PCR_get, "GPCR");
689 SNC_HANDLE_NAMES(PCR_set, "SPCR");
690
691 SNC_HANDLE_NAMES(CMI_get, "GCMI");
692 SNC_HANDLE_NAMES(CMI_set, "SCMI");
693
694 static struct sony_nc_value sony_nc_values[] = {
695 SNC_HANDLE(brightness_default, snc_brightness_def_get,
696 snc_brightness_def_set, brightness_default_validate, 0),
697 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
698 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
699 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
700 boolean_validate, 0),
701 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
702 boolean_validate, 1),
703 SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
704 boolean_validate, 0),
705 SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
706 boolean_validate, 0),
707 SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
708 boolean_validate, 0),
709 /* unknown methods */
710 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
711 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
712 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
713 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
714 SNC_HANDLE_NULL
715 };
716
717 static acpi_handle sony_nc_acpi_handle;
718 static struct acpi_device *sony_nc_acpi_device = NULL;
719
720 /*
721 * acpi_evaluate_object wrappers
722 * all useful calls into SNC methods take one or zero parameters and return
723 * integers or arrays.
724 */
__call_snc_method(acpi_handle handle,char * method,u64 * value)725 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
726 u64 *value)
727 {
728 union acpi_object *result = NULL;
729 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
730 acpi_status status;
731
732 if (value) {
733 struct acpi_object_list params;
734 union acpi_object in;
735 in.type = ACPI_TYPE_INTEGER;
736 in.integer.value = *value;
737 params.count = 1;
738 params.pointer = ∈
739 status = acpi_evaluate_object(handle, method, ¶ms, &output);
740 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
741 (unsigned int)(*value >> 32),
742 (unsigned int)*value & 0xffffffff);
743 } else {
744 status = acpi_evaluate_object(handle, method, NULL, &output);
745 dprintk("__call_snc_method: [%s]\n", method);
746 }
747
748 if (ACPI_FAILURE(status)) {
749 pr_err("Failed to evaluate [%s]\n", method);
750 return NULL;
751 }
752
753 result = (union acpi_object *) output.pointer;
754 if (!result)
755 dprintk("No return object [%s]\n", method);
756
757 return result;
758 }
759
760 #define MIN(a, b) (a > b ? b : a)
sony_nc_buffer_call(acpi_handle handle,char * name,u64 * value,void * buffer,size_t buflen)761 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
762 void *buffer, size_t buflen)
763 {
764 int ret = 0;
765 size_t len;
766 union acpi_object *object = __call_snc_method(handle, name, value);
767
768 if (!object)
769 return -EINVAL;
770
771 if (!buffer) {
772 /* do nothing */
773 } else if (object->type == ACPI_TYPE_BUFFER) {
774 len = MIN(buflen, object->buffer.length);
775 memset(buffer, 0, buflen);
776 memcpy(buffer, object->buffer.pointer, len);
777
778 } else if (object->type == ACPI_TYPE_INTEGER) {
779 len = MIN(buflen, sizeof(object->integer.value));
780 memset(buffer, 0, buflen);
781 memcpy(buffer, &object->integer.value, len);
782
783 } else {
784 pr_warn("Unexpected acpi_object: 0x%x\n", object->type);
785 ret = -EINVAL;
786 }
787
788 kfree(object);
789 return ret;
790 }
791
sony_nc_int_call(acpi_handle handle,char * name,int * value,int * result)792 static int sony_nc_int_call(acpi_handle handle, char *name, int *value, int
793 *result)
794 {
795 int ret;
796
797 if (value) {
798 u64 v = *value;
799
800 ret = sony_nc_buffer_call(handle, name, &v, result,
801 sizeof(*result));
802 } else {
803 ret = sony_nc_buffer_call(handle, name, NULL, result,
804 sizeof(*result));
805 }
806 return ret;
807 }
808
809 struct sony_nc_handles {
810 u16 cap[0x10];
811 struct device_attribute devattr;
812 };
813
814 static struct sony_nc_handles *handles;
815
sony_nc_handles_show(struct device * dev,struct device_attribute * attr,char * buffer)816 static ssize_t sony_nc_handles_show(struct device *dev,
817 struct device_attribute *attr, char *buffer)
818 {
819 ssize_t len = 0;
820 int i;
821
822 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
823 len += scnprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
824 handles->cap[i]);
825 }
826 len += scnprintf(buffer + len, PAGE_SIZE - len, "\n");
827
828 return len;
829 }
830
sony_nc_handles_setup(struct platform_device * pd)831 static int sony_nc_handles_setup(struct platform_device *pd)
832 {
833 int i, r, result, arg;
834
835 handles = kzalloc(sizeof(*handles), GFP_KERNEL);
836 if (!handles)
837 return -ENOMEM;
838
839 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
840 arg = i + 0x20;
841 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
842 &result);
843 if (!r) {
844 dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
845 result, i);
846 handles->cap[i] = result;
847 }
848 }
849
850 if (debug) {
851 sysfs_attr_init(&handles->devattr.attr);
852 handles->devattr.attr.name = "handles";
853 handles->devattr.attr.mode = S_IRUGO;
854 handles->devattr.show = sony_nc_handles_show;
855
856 /* allow reading capabilities via sysfs */
857 if (device_create_file(&pd->dev, &handles->devattr)) {
858 kfree(handles);
859 handles = NULL;
860 return -1;
861 }
862 }
863
864 return 0;
865 }
866
sony_nc_handles_cleanup(struct platform_device * pd)867 static int sony_nc_handles_cleanup(struct platform_device *pd)
868 {
869 if (handles) {
870 if (debug)
871 device_remove_file(&pd->dev, &handles->devattr);
872 kfree(handles);
873 handles = NULL;
874 }
875 return 0;
876 }
877
sony_find_snc_handle(int handle)878 static int sony_find_snc_handle(int handle)
879 {
880 int i;
881
882 /* not initialized yet, return early */
883 if (!handles || !handle)
884 return -EINVAL;
885
886 for (i = 0; i < 0x10; i++) {
887 if (handles->cap[i] == handle) {
888 dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
889 handle, i);
890 return i;
891 }
892 }
893 dprintk("handle 0x%.4x not found\n", handle);
894 return -EINVAL;
895 }
896
sony_call_snc_handle(int handle,int argument,int * result)897 static int sony_call_snc_handle(int handle, int argument, int *result)
898 {
899 int arg, ret = 0;
900 int offset = sony_find_snc_handle(handle);
901
902 if (offset < 0)
903 return offset;
904
905 arg = offset | argument;
906 ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
907 dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
908 return ret;
909 }
910
911 /*
912 * sony_nc_values input/output validate functions
913 */
914
915 /* brightness_default_validate:
916 *
917 * manipulate input output values to keep consistency with the
918 * backlight framework for which brightness values are 0-based.
919 */
brightness_default_validate(const int direction,const int value)920 static int brightness_default_validate(const int direction, const int value)
921 {
922 switch (direction) {
923 case SNC_VALIDATE_OUT:
924 return value - 1;
925 case SNC_VALIDATE_IN:
926 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
927 return value + 1;
928 }
929 return -EINVAL;
930 }
931
932 /* boolean_validate:
933 *
934 * on input validate boolean values 0/1, on output just pass the
935 * received value.
936 */
boolean_validate(const int direction,const int value)937 static int boolean_validate(const int direction, const int value)
938 {
939 if (direction == SNC_VALIDATE_IN) {
940 if (value != 0 && value != 1)
941 return -EINVAL;
942 }
943 return value;
944 }
945
946 /*
947 * Sysfs show/store common to all sony_nc_values
948 */
sony_nc_sysfs_show(struct device * dev,struct device_attribute * attr,char * buffer)949 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
950 char *buffer)
951 {
952 int value, ret = 0;
953 struct sony_nc_value *item =
954 container_of(attr, struct sony_nc_value, devattr);
955
956 if (!*item->acpiget)
957 return -EIO;
958
959 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
960 &value);
961 if (ret < 0)
962 return -EIO;
963
964 if (item->validate)
965 value = item->validate(SNC_VALIDATE_OUT, value);
966
967 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
968 }
969
sony_nc_sysfs_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)970 static ssize_t sony_nc_sysfs_store(struct device *dev,
971 struct device_attribute *attr,
972 const char *buffer, size_t count)
973 {
974 int value;
975 int ret = 0;
976 struct sony_nc_value *item =
977 container_of(attr, struct sony_nc_value, devattr);
978
979 if (!item->acpiset)
980 return -EIO;
981
982 if (count > 31)
983 return -EINVAL;
984
985 if (kstrtoint(buffer, 10, &value))
986 return -EINVAL;
987
988 if (item->validate)
989 value = item->validate(SNC_VALIDATE_IN, value);
990
991 if (value < 0)
992 return value;
993
994 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
995 &value, NULL);
996 if (ret < 0)
997 return -EIO;
998
999 item->value = value;
1000 item->valid = 1;
1001 return count;
1002 }
1003
1004
1005 /*
1006 * Backlight device
1007 */
1008 struct sony_backlight_props {
1009 struct backlight_device *dev;
1010 int handle;
1011 int cmd_base;
1012 u8 offset;
1013 u8 maxlvl;
1014 };
1015 static struct sony_backlight_props sony_bl_props;
1016
sony_backlight_update_status(struct backlight_device * bd)1017 static int sony_backlight_update_status(struct backlight_device *bd)
1018 {
1019 int arg = bd->props.brightness + 1;
1020 return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1021 }
1022
sony_backlight_get_brightness(struct backlight_device * bd)1023 static int sony_backlight_get_brightness(struct backlight_device *bd)
1024 {
1025 int value;
1026
1027 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1028 return 0;
1029 /* brightness levels are 1-based, while backlight ones are 0-based */
1030 return value - 1;
1031 }
1032
sony_nc_get_brightness_ng(struct backlight_device * bd)1033 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1034 {
1035 int result;
1036 struct sony_backlight_props *sdev =
1037 (struct sony_backlight_props *)bl_get_data(bd);
1038
1039 sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1040
1041 return (result & 0xff) - sdev->offset;
1042 }
1043
sony_nc_update_status_ng(struct backlight_device * bd)1044 static int sony_nc_update_status_ng(struct backlight_device *bd)
1045 {
1046 int value, result;
1047 struct sony_backlight_props *sdev =
1048 (struct sony_backlight_props *)bl_get_data(bd);
1049
1050 value = bd->props.brightness + sdev->offset;
1051 if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1052 &result))
1053 return -EIO;
1054
1055 return value;
1056 }
1057
1058 static const struct backlight_ops sony_backlight_ops = {
1059 .options = BL_CORE_SUSPENDRESUME,
1060 .update_status = sony_backlight_update_status,
1061 .get_brightness = sony_backlight_get_brightness,
1062 };
1063 static const struct backlight_ops sony_backlight_ng_ops = {
1064 .options = BL_CORE_SUSPENDRESUME,
1065 .update_status = sony_nc_update_status_ng,
1066 .get_brightness = sony_nc_get_brightness_ng,
1067 };
1068
1069 /*
1070 * New SNC-only Vaios event mapping to driver known keys
1071 */
1072 struct sony_nc_event {
1073 u8 data;
1074 u8 event;
1075 };
1076
1077 static struct sony_nc_event sony_100_events[] = {
1078 { 0x90, SONYPI_EVENT_PKEY_P1 },
1079 { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1080 { 0x91, SONYPI_EVENT_PKEY_P2 },
1081 { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1082 { 0x81, SONYPI_EVENT_FNKEY_F1 },
1083 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1084 { 0x82, SONYPI_EVENT_FNKEY_F2 },
1085 { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1086 { 0x83, SONYPI_EVENT_FNKEY_F3 },
1087 { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1088 { 0x84, SONYPI_EVENT_FNKEY_F4 },
1089 { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1090 { 0x85, SONYPI_EVENT_FNKEY_F5 },
1091 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1092 { 0x86, SONYPI_EVENT_FNKEY_F6 },
1093 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1094 { 0x87, SONYPI_EVENT_FNKEY_F7 },
1095 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1096 { 0x88, SONYPI_EVENT_FNKEY_F8 },
1097 { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1098 { 0x89, SONYPI_EVENT_FNKEY_F9 },
1099 { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1100 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1101 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1102 { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1103 { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1104 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1105 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1106 { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1107 { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1108 { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1109 { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1110 { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1111 { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1112 { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1113 { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1114 { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1115 { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1116 { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1117 { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1118 { 0xa8, SONYPI_EVENT_FNKEY_1 },
1119 { 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1120 { 0, 0 },
1121 };
1122
1123 static struct sony_nc_event sony_127_events[] = {
1124 { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1125 { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1126 { 0x82, SONYPI_EVENT_PKEY_P1 },
1127 { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1128 { 0x83, SONYPI_EVENT_PKEY_P2 },
1129 { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1130 { 0x84, SONYPI_EVENT_PKEY_P3 },
1131 { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1132 { 0x85, SONYPI_EVENT_PKEY_P4 },
1133 { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1134 { 0x86, SONYPI_EVENT_PKEY_P5 },
1135 { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1136 { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1137 { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1138 { 0, 0 },
1139 };
1140
sony_nc_hotkeys_decode(u32 event,unsigned int handle)1141 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1142 {
1143 int ret = -EINVAL;
1144 unsigned int result = 0;
1145 struct sony_nc_event *key_event;
1146
1147 if (sony_call_snc_handle(handle, 0x200, &result)) {
1148 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1149 event);
1150 return -EINVAL;
1151 }
1152
1153 result &= 0xFF;
1154
1155 if (handle == 0x0100)
1156 key_event = sony_100_events;
1157 else
1158 key_event = sony_127_events;
1159
1160 for (; key_event->data; key_event++) {
1161 if (key_event->data == result) {
1162 ret = key_event->event;
1163 break;
1164 }
1165 }
1166
1167 if (!key_event->data)
1168 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1169 event, result, handle);
1170
1171 return ret;
1172 }
1173
1174 /*
1175 * ACPI callbacks
1176 */
1177 enum event_types {
1178 HOTKEY = 1,
1179 KILLSWITCH,
1180 GFX_SWITCH
1181 };
sony_nc_notify(struct acpi_device * device,u32 event)1182 static void sony_nc_notify(struct acpi_device *device, u32 event)
1183 {
1184 u32 real_ev = event;
1185 u8 ev_type = 0;
1186 int ret;
1187
1188 dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1189
1190 if (event >= 0x90) {
1191 unsigned int result = 0;
1192 unsigned int arg = 0;
1193 unsigned int handle = 0;
1194 unsigned int offset = event - 0x90;
1195
1196 if (offset >= ARRAY_SIZE(handles->cap)) {
1197 pr_err("Event 0x%x outside of capabilities list\n",
1198 event);
1199 return;
1200 }
1201 handle = handles->cap[offset];
1202
1203 /* list of handles known for generating events */
1204 switch (handle) {
1205 /* hotkey event */
1206 case 0x0100:
1207 case 0x0127:
1208 ev_type = HOTKEY;
1209 ret = sony_nc_hotkeys_decode(event, handle);
1210
1211 if (ret > 0) {
1212 sony_laptop_report_input_event(ret);
1213 real_ev = ret;
1214 }
1215
1216 break;
1217
1218 /* wlan switch */
1219 case 0x0124:
1220 case 0x0135:
1221 /* events on this handle are reported when the
1222 * switch changes position or for battery
1223 * events. We'll notify both of them but only
1224 * update the rfkill device status when the
1225 * switch is moved.
1226 */
1227 ev_type = KILLSWITCH;
1228 sony_call_snc_handle(handle, 0x0100, &result);
1229 real_ev = result & 0x03;
1230
1231 /* hw switch event */
1232 if (real_ev == 1)
1233 sony_nc_rfkill_update();
1234
1235 break;
1236
1237 case 0x0128:
1238 case 0x0146:
1239 /* Hybrid GFX switching */
1240 sony_call_snc_handle(handle, 0x0000, &result);
1241 dprintk("GFX switch event received (reason: %s)\n",
1242 (result == 0x1) ? "switch change" :
1243 (result == 0x2) ? "output switch" :
1244 (result == 0x3) ? "output switch" :
1245 "");
1246
1247 ev_type = GFX_SWITCH;
1248 real_ev = __sony_nc_gfx_switch_status_get();
1249 break;
1250
1251 case 0x015B:
1252 /* Hybrid GFX switching SVS151290S */
1253 ev_type = GFX_SWITCH;
1254 real_ev = __sony_nc_gfx_switch_status_get();
1255 break;
1256 default:
1257 dprintk("Unknown event 0x%x for handle 0x%x\n",
1258 event, handle);
1259 break;
1260 }
1261
1262 /* clear the event (and the event reason when present) */
1263 arg = 1 << offset;
1264 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1265
1266 } else {
1267 /* old style event */
1268 ev_type = HOTKEY;
1269 sony_laptop_report_input_event(real_ev);
1270 }
1271 acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1272 dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1273 }
1274
sony_walk_callback(acpi_handle handle,u32 level,void * context,void ** return_value)1275 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1276 void *context, void **return_value)
1277 {
1278 struct acpi_device_info *info;
1279
1280 if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1281 pr_warn("method: name: %4.4s, args %X\n",
1282 (char *)&info->name, info->param_count);
1283
1284 kfree(info);
1285 }
1286
1287 return AE_OK;
1288 }
1289
1290 /*
1291 * ACPI device
1292 */
sony_nc_function_setup(struct acpi_device * device,struct platform_device * pf_device)1293 static void sony_nc_function_setup(struct acpi_device *device,
1294 struct platform_device *pf_device)
1295 {
1296 unsigned int i, result, bitmask, arg;
1297
1298 if (!handles)
1299 return;
1300
1301 /* setup found handles here */
1302 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1303 unsigned int handle = handles->cap[i];
1304
1305 if (!handle)
1306 continue;
1307
1308 dprintk("setting up handle 0x%.4x\n", handle);
1309
1310 switch (handle) {
1311 case 0x0100:
1312 case 0x0101:
1313 case 0x0127:
1314 /* setup hotkeys */
1315 sony_call_snc_handle(handle, 0, &result);
1316 break;
1317 case 0x0102:
1318 /* setup hotkeys */
1319 sony_call_snc_handle(handle, 0x100, &result);
1320 break;
1321 case 0x0105:
1322 case 0x0148:
1323 /* touchpad enable/disable */
1324 result = sony_nc_touchpad_setup(pf_device, handle);
1325 if (result)
1326 pr_err("couldn't set up touchpad control function (%d)\n",
1327 result);
1328 break;
1329 case 0x0115:
1330 case 0x0136:
1331 case 0x013f:
1332 result = sony_nc_battery_care_setup(pf_device, handle);
1333 if (result)
1334 pr_err("couldn't set up battery care function (%d)\n",
1335 result);
1336 break;
1337 case 0x0119:
1338 case 0x015D:
1339 result = sony_nc_lid_resume_setup(pf_device, handle);
1340 if (result)
1341 pr_err("couldn't set up lid resume function (%d)\n",
1342 result);
1343 break;
1344 case 0x0122:
1345 result = sony_nc_thermal_setup(pf_device);
1346 if (result)
1347 pr_err("couldn't set up thermal profile function (%d)\n",
1348 result);
1349 break;
1350 case 0x0128:
1351 case 0x0146:
1352 case 0x015B:
1353 result = sony_nc_gfx_switch_setup(pf_device, handle);
1354 if (result)
1355 pr_err("couldn't set up GFX Switch status (%d)\n",
1356 result);
1357 break;
1358 case 0x0131:
1359 result = sony_nc_highspeed_charging_setup(pf_device);
1360 if (result)
1361 pr_err("couldn't set up high speed charging function (%d)\n",
1362 result);
1363 break;
1364 case 0x0124:
1365 case 0x0135:
1366 result = sony_nc_rfkill_setup(device, handle);
1367 if (result)
1368 pr_err("couldn't set up rfkill support (%d)\n",
1369 result);
1370 break;
1371 case 0x0137:
1372 case 0x0143:
1373 case 0x014b:
1374 case 0x014c:
1375 case 0x0153:
1376 case 0x0163:
1377 result = sony_nc_kbd_backlight_setup(pf_device, handle);
1378 if (result)
1379 pr_err("couldn't set up keyboard backlight function (%d)\n",
1380 result);
1381 break;
1382 case 0x0121:
1383 result = sony_nc_lowbatt_setup(pf_device);
1384 if (result)
1385 pr_err("couldn't set up low battery function (%d)\n",
1386 result);
1387 break;
1388 case 0x0149:
1389 result = sony_nc_fanspeed_setup(pf_device);
1390 if (result)
1391 pr_err("couldn't set up fan speed function (%d)\n",
1392 result);
1393 break;
1394 case 0x0155:
1395 result = sony_nc_usb_charge_setup(pf_device);
1396 if (result)
1397 pr_err("couldn't set up USB charge support (%d)\n",
1398 result);
1399 break;
1400 case 0x011D:
1401 result = sony_nc_panelid_setup(pf_device);
1402 if (result)
1403 pr_err("couldn't set up panel ID function (%d)\n",
1404 result);
1405 break;
1406 case 0x0168:
1407 result = sony_nc_smart_conn_setup(pf_device);
1408 if (result)
1409 pr_err("couldn't set up smart connect support (%d)\n",
1410 result);
1411 break;
1412 default:
1413 continue;
1414 }
1415 }
1416
1417 /* Enable all events */
1418 arg = 0x10;
1419 if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1420 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1421 &result);
1422 }
1423
sony_nc_function_cleanup(struct platform_device * pd)1424 static void sony_nc_function_cleanup(struct platform_device *pd)
1425 {
1426 unsigned int i, result, bitmask, handle;
1427
1428 if (!handles)
1429 return;
1430
1431 /* get enabled events and disable them */
1432 sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1433 sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1434
1435 /* cleanup handles here */
1436 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1437
1438 handle = handles->cap[i];
1439
1440 if (!handle)
1441 continue;
1442
1443 switch (handle) {
1444 case 0x0105:
1445 case 0x0148:
1446 sony_nc_touchpad_cleanup(pd);
1447 break;
1448 case 0x0115:
1449 case 0x0136:
1450 case 0x013f:
1451 sony_nc_battery_care_cleanup(pd);
1452 break;
1453 case 0x0119:
1454 case 0x015D:
1455 sony_nc_lid_resume_cleanup(pd);
1456 break;
1457 case 0x0122:
1458 sony_nc_thermal_cleanup(pd);
1459 break;
1460 case 0x0128:
1461 case 0x0146:
1462 case 0x015B:
1463 sony_nc_gfx_switch_cleanup(pd);
1464 break;
1465 case 0x0131:
1466 sony_nc_highspeed_charging_cleanup(pd);
1467 break;
1468 case 0x0124:
1469 case 0x0135:
1470 sony_nc_rfkill_cleanup();
1471 break;
1472 case 0x0137:
1473 case 0x0143:
1474 case 0x014b:
1475 case 0x014c:
1476 case 0x0153:
1477 case 0x0163:
1478 sony_nc_kbd_backlight_cleanup(pd, handle);
1479 break;
1480 case 0x0121:
1481 sony_nc_lowbatt_cleanup(pd);
1482 break;
1483 case 0x0149:
1484 sony_nc_fanspeed_cleanup(pd);
1485 break;
1486 case 0x0155:
1487 sony_nc_usb_charge_cleanup(pd);
1488 break;
1489 case 0x011D:
1490 sony_nc_panelid_cleanup(pd);
1491 break;
1492 case 0x0168:
1493 sony_nc_smart_conn_cleanup(pd);
1494 break;
1495 default:
1496 continue;
1497 }
1498 }
1499
1500 /* finally cleanup the handles list */
1501 sony_nc_handles_cleanup(pd);
1502 }
1503
1504 #ifdef CONFIG_PM_SLEEP
sony_nc_function_resume(void)1505 static void sony_nc_function_resume(void)
1506 {
1507 unsigned int i, result, bitmask, arg;
1508
1509 dprintk("Resuming SNC device\n");
1510
1511 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1512 unsigned int handle = handles->cap[i];
1513
1514 if (!handle)
1515 continue;
1516
1517 switch (handle) {
1518 case 0x0100:
1519 case 0x0101:
1520 case 0x0127:
1521 /* re-enable hotkeys */
1522 sony_call_snc_handle(handle, 0, &result);
1523 break;
1524 case 0x0102:
1525 /* re-enable hotkeys */
1526 sony_call_snc_handle(handle, 0x100, &result);
1527 break;
1528 case 0x0122:
1529 sony_nc_thermal_resume();
1530 break;
1531 case 0x0124:
1532 case 0x0135:
1533 sony_nc_rfkill_update();
1534 break;
1535 default:
1536 continue;
1537 }
1538 }
1539
1540 /* Enable all events */
1541 arg = 0x10;
1542 if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1543 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1544 &result);
1545 }
1546
sony_nc_resume(struct device * dev)1547 static int sony_nc_resume(struct device *dev)
1548 {
1549 struct sony_nc_value *item;
1550
1551 for (item = sony_nc_values; item->name; item++) {
1552 int ret;
1553
1554 if (!item->valid)
1555 continue;
1556 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1557 &item->value, NULL);
1558 if (ret < 0) {
1559 pr_err("%s: %d\n", __func__, ret);
1560 break;
1561 }
1562 }
1563
1564 if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1565 int arg = 1;
1566 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1567 dprintk("ECON Method failed\n");
1568 }
1569
1570 if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1571 sony_nc_function_resume();
1572
1573 return 0;
1574 }
1575 #endif
1576
1577 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1578
sony_nc_rfkill_cleanup(void)1579 static void sony_nc_rfkill_cleanup(void)
1580 {
1581 int i;
1582
1583 for (i = 0; i < N_SONY_RFKILL; i++) {
1584 if (sony_rfkill_devices[i]) {
1585 rfkill_unregister(sony_rfkill_devices[i]);
1586 rfkill_destroy(sony_rfkill_devices[i]);
1587 }
1588 }
1589 }
1590
sony_nc_rfkill_set(void * data,bool blocked)1591 static int sony_nc_rfkill_set(void *data, bool blocked)
1592 {
1593 int result;
1594 int argument = sony_rfkill_address[(long) data] + 0x100;
1595
1596 if (!blocked)
1597 argument |= 0x070000;
1598
1599 return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1600 }
1601
1602 static const struct rfkill_ops sony_rfkill_ops = {
1603 .set_block = sony_nc_rfkill_set,
1604 };
1605
sony_nc_setup_rfkill(struct acpi_device * device,enum sony_nc_rfkill nc_type)1606 static int sony_nc_setup_rfkill(struct acpi_device *device,
1607 enum sony_nc_rfkill nc_type)
1608 {
1609 int err;
1610 struct rfkill *rfk;
1611 enum rfkill_type type;
1612 const char *name;
1613 int result;
1614 bool hwblock, swblock;
1615
1616 switch (nc_type) {
1617 case SONY_WIFI:
1618 type = RFKILL_TYPE_WLAN;
1619 name = "sony-wifi";
1620 break;
1621 case SONY_BLUETOOTH:
1622 type = RFKILL_TYPE_BLUETOOTH;
1623 name = "sony-bluetooth";
1624 break;
1625 case SONY_WWAN:
1626 type = RFKILL_TYPE_WWAN;
1627 name = "sony-wwan";
1628 break;
1629 case SONY_WIMAX:
1630 type = RFKILL_TYPE_WIMAX;
1631 name = "sony-wimax";
1632 break;
1633 default:
1634 return -EINVAL;
1635 }
1636
1637 rfk = rfkill_alloc(name, &device->dev, type,
1638 &sony_rfkill_ops, (void *)nc_type);
1639 if (!rfk)
1640 return -ENOMEM;
1641
1642 err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1643 if (err < 0) {
1644 rfkill_destroy(rfk);
1645 return err;
1646 }
1647 hwblock = !(result & 0x1);
1648
1649 err = sony_call_snc_handle(sony_rfkill_handle,
1650 sony_rfkill_address[nc_type],
1651 &result);
1652 if (err < 0) {
1653 rfkill_destroy(rfk);
1654 return err;
1655 }
1656 swblock = !(result & 0x2);
1657
1658 rfkill_init_sw_state(rfk, swblock);
1659 rfkill_set_hw_state(rfk, hwblock);
1660
1661 err = rfkill_register(rfk);
1662 if (err) {
1663 rfkill_destroy(rfk);
1664 return err;
1665 }
1666 sony_rfkill_devices[nc_type] = rfk;
1667 return err;
1668 }
1669
sony_nc_rfkill_update(void)1670 static void sony_nc_rfkill_update(void)
1671 {
1672 enum sony_nc_rfkill i;
1673 int result;
1674 bool hwblock;
1675
1676 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1677 hwblock = !(result & 0x1);
1678
1679 for (i = 0; i < N_SONY_RFKILL; i++) {
1680 int argument = sony_rfkill_address[i];
1681
1682 if (!sony_rfkill_devices[i])
1683 continue;
1684
1685 if (hwblock) {
1686 if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1687 /* we already know we're blocked */
1688 }
1689 continue;
1690 }
1691
1692 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1693 rfkill_set_states(sony_rfkill_devices[i],
1694 !(result & 0x2), false);
1695 }
1696 }
1697
sony_nc_rfkill_setup(struct acpi_device * device,unsigned int handle)1698 static int sony_nc_rfkill_setup(struct acpi_device *device,
1699 unsigned int handle)
1700 {
1701 u64 offset;
1702 int i;
1703 unsigned char buffer[32] = { 0 };
1704
1705 offset = sony_find_snc_handle(handle);
1706 sony_rfkill_handle = handle;
1707
1708 i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1709 32);
1710 if (i < 0)
1711 return i;
1712
1713 /* The buffer is filled with magic numbers describing the devices
1714 * available, 0xff terminates the enumeration.
1715 * Known codes:
1716 * 0x00 WLAN
1717 * 0x10 BLUETOOTH
1718 * 0x20 WWAN GPRS-EDGE
1719 * 0x21 WWAN HSDPA
1720 * 0x22 WWAN EV-DO
1721 * 0x23 WWAN GPS
1722 * 0x25 Gobi WWAN no GPS
1723 * 0x26 Gobi WWAN + GPS
1724 * 0x28 Gobi WWAN no GPS
1725 * 0x29 Gobi WWAN + GPS
1726 * 0x30 WIMAX
1727 * 0x50 Gobi WWAN no GPS
1728 * 0x51 Gobi WWAN + GPS
1729 * 0x70 no SIM card slot
1730 * 0x71 SIM card slot
1731 */
1732 for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1733
1734 if (buffer[i] == 0xff)
1735 break;
1736
1737 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1738
1739 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1740 sony_nc_setup_rfkill(device, SONY_WIFI);
1741
1742 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1743 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1744
1745 if (((0xf0 & buffer[i]) == 0x20 ||
1746 (0xf0 & buffer[i]) == 0x50) &&
1747 !sony_rfkill_devices[SONY_WWAN])
1748 sony_nc_setup_rfkill(device, SONY_WWAN);
1749
1750 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1751 sony_nc_setup_rfkill(device, SONY_WIMAX);
1752 }
1753 return 0;
1754 }
1755
1756 /* Keyboard backlight feature */
1757 struct kbd_backlight {
1758 unsigned int handle;
1759 unsigned int base;
1760 unsigned int mode;
1761 unsigned int timeout;
1762 unsigned int has_timeout;
1763 struct device_attribute mode_attr;
1764 struct device_attribute timeout_attr;
1765 };
1766
1767 static struct kbd_backlight *kbdbl_ctl;
1768
__sony_nc_kbd_backlight_mode_set(u8 value)1769 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1770 {
1771 int result;
1772
1773 if (value > 2)
1774 return -EINVAL;
1775
1776 if (sony_call_snc_handle(kbdbl_ctl->handle,
1777 (value << 0x10) | (kbdbl_ctl->base), &result))
1778 return -EIO;
1779
1780 /* Try to turn the light on/off immediately */
1781 if (value != 1)
1782 sony_call_snc_handle(kbdbl_ctl->handle,
1783 (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1784 &result);
1785
1786 kbdbl_ctl->mode = value;
1787
1788 return 0;
1789 }
1790
sony_nc_kbd_backlight_mode_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)1791 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1792 struct device_attribute *attr,
1793 const char *buffer, size_t count)
1794 {
1795 int ret = 0;
1796 unsigned long value;
1797
1798 if (count > 31)
1799 return -EINVAL;
1800
1801 if (kstrtoul(buffer, 10, &value))
1802 return -EINVAL;
1803
1804 ret = __sony_nc_kbd_backlight_mode_set(value);
1805 if (ret < 0)
1806 return ret;
1807
1808 return count;
1809 }
1810
sony_nc_kbd_backlight_mode_show(struct device * dev,struct device_attribute * attr,char * buffer)1811 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1812 struct device_attribute *attr, char *buffer)
1813 {
1814 ssize_t count = 0;
1815 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1816 return count;
1817 }
1818
__sony_nc_kbd_backlight_timeout_set(u8 value)1819 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1820 {
1821 int result;
1822
1823 if (value > 3)
1824 return -EINVAL;
1825
1826 if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1827 (kbdbl_ctl->base + 0x200), &result))
1828 return -EIO;
1829
1830 kbdbl_ctl->timeout = value;
1831
1832 return 0;
1833 }
1834
sony_nc_kbd_backlight_timeout_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)1835 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1836 struct device_attribute *attr,
1837 const char *buffer, size_t count)
1838 {
1839 int ret = 0;
1840 unsigned long value;
1841
1842 if (count > 31)
1843 return -EINVAL;
1844
1845 if (kstrtoul(buffer, 10, &value))
1846 return -EINVAL;
1847
1848 ret = __sony_nc_kbd_backlight_timeout_set(value);
1849 if (ret < 0)
1850 return ret;
1851
1852 return count;
1853 }
1854
sony_nc_kbd_backlight_timeout_show(struct device * dev,struct device_attribute * attr,char * buffer)1855 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1856 struct device_attribute *attr, char *buffer)
1857 {
1858 ssize_t count = 0;
1859 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1860 return count;
1861 }
1862
sony_nc_kbd_backlight_setup(struct platform_device * pd,unsigned int handle)1863 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1864 unsigned int handle)
1865 {
1866 int result;
1867 int probe_base = 0;
1868 int ctl_base = 0;
1869 int ret = 0;
1870
1871 if (kbdbl_ctl) {
1872 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1873 handle, kbdbl_ctl->handle);
1874 return -EBUSY;
1875 }
1876
1877 /* verify the kbd backlight presence, some of these handles are not used
1878 * for keyboard backlight only
1879 */
1880 switch (handle) {
1881 case 0x0153:
1882 probe_base = 0x0;
1883 ctl_base = 0x0;
1884 break;
1885 case 0x0137:
1886 probe_base = 0x0B00;
1887 ctl_base = 0x0C00;
1888 break;
1889 default:
1890 probe_base = 0x0100;
1891 ctl_base = 0x4000;
1892 break;
1893 }
1894
1895 /*
1896 * Only probe if there is a separate probe_base, otherwise the probe call
1897 * is equivalent to __sony_nc_kbd_backlight_mode_set(0), resulting in
1898 * the keyboard backlight being turned off.
1899 */
1900 if (probe_base) {
1901 ret = sony_call_snc_handle(handle, probe_base, &result);
1902 if (ret)
1903 return ret;
1904
1905 if ((handle == 0x0137 && !(result & 0x02)) ||
1906 !(result & 0x01)) {
1907 dprintk("no backlight keyboard found\n");
1908 return 0;
1909 }
1910 }
1911
1912 kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1913 if (!kbdbl_ctl)
1914 return -ENOMEM;
1915
1916 kbdbl_ctl->mode = kbd_backlight;
1917 kbdbl_ctl->timeout = kbd_backlight_timeout;
1918 kbdbl_ctl->handle = handle;
1919 kbdbl_ctl->base = ctl_base;
1920 /* Some models do not allow timeout control */
1921 kbdbl_ctl->has_timeout = handle != 0x0153;
1922
1923 sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1924 kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1925 kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1926 kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1927 kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1928
1929 ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1930 if (ret)
1931 goto outkzalloc;
1932
1933 __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1934
1935 if (kbdbl_ctl->has_timeout) {
1936 sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1937 kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1938 kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1939 kbdbl_ctl->timeout_attr.show =
1940 sony_nc_kbd_backlight_timeout_show;
1941 kbdbl_ctl->timeout_attr.store =
1942 sony_nc_kbd_backlight_timeout_store;
1943
1944 ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1945 if (ret)
1946 goto outmode;
1947
1948 __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1949 }
1950
1951
1952 return 0;
1953
1954 outmode:
1955 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1956 outkzalloc:
1957 kfree(kbdbl_ctl);
1958 kbdbl_ctl = NULL;
1959 return ret;
1960 }
1961
sony_nc_kbd_backlight_cleanup(struct platform_device * pd,unsigned int handle)1962 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1963 unsigned int handle)
1964 {
1965 if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1966 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1967 if (kbdbl_ctl->has_timeout)
1968 device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1969 kfree(kbdbl_ctl);
1970 kbdbl_ctl = NULL;
1971 }
1972 }
1973
1974 struct battery_care_control {
1975 struct device_attribute attrs[2];
1976 unsigned int handle;
1977 };
1978 static struct battery_care_control *bcare_ctl;
1979
sony_nc_battery_care_limit_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)1980 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1981 struct device_attribute *attr,
1982 const char *buffer, size_t count)
1983 {
1984 unsigned int result, cmd;
1985 unsigned long value;
1986
1987 if (count > 31)
1988 return -EINVAL;
1989
1990 if (kstrtoul(buffer, 10, &value))
1991 return -EINVAL;
1992
1993 /* limit values (2 bits):
1994 * 00 - none
1995 * 01 - 80%
1996 * 10 - 50%
1997 * 11 - 100%
1998 *
1999 * bit 0: 0 disable BCL, 1 enable BCL
2000 * bit 1: 1 tell to store the battery limit (see bits 6,7) too
2001 * bits 2,3: reserved
2002 * bits 4,5: store the limit into the EC
2003 * bits 6,7: store the limit into the battery
2004 */
2005 cmd = 0;
2006
2007 if (value > 0) {
2008 if (value <= 50)
2009 cmd = 0x20;
2010
2011 else if (value <= 80)
2012 cmd = 0x10;
2013
2014 else if (value <= 100)
2015 cmd = 0x30;
2016
2017 else
2018 return -EINVAL;
2019
2020 /*
2021 * handle 0x0115 should allow storing on battery too;
2022 * handle 0x0136 same as 0x0115 + health status;
2023 * handle 0x013f, same as 0x0136 but no storing on the battery
2024 */
2025 if (bcare_ctl->handle != 0x013f)
2026 cmd = cmd | (cmd << 2);
2027
2028 cmd = (cmd | 0x1) << 0x10;
2029 }
2030
2031 if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2032 return -EIO;
2033
2034 return count;
2035 }
2036
sony_nc_battery_care_limit_show(struct device * dev,struct device_attribute * attr,char * buffer)2037 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2038 struct device_attribute *attr, char *buffer)
2039 {
2040 unsigned int result, status;
2041
2042 if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2043 return -EIO;
2044
2045 status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2046 switch (status) {
2047 case 1:
2048 status = 80;
2049 break;
2050 case 2:
2051 status = 50;
2052 break;
2053 case 3:
2054 status = 100;
2055 break;
2056 default:
2057 status = 0;
2058 break;
2059 }
2060
2061 return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2062 }
2063
sony_nc_battery_care_health_show(struct device * dev,struct device_attribute * attr,char * buffer)2064 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2065 struct device_attribute *attr, char *buffer)
2066 {
2067 ssize_t count = 0;
2068 unsigned int health;
2069
2070 if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2071 return -EIO;
2072
2073 count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2074
2075 return count;
2076 }
2077
sony_nc_battery_care_setup(struct platform_device * pd,unsigned int handle)2078 static int sony_nc_battery_care_setup(struct platform_device *pd,
2079 unsigned int handle)
2080 {
2081 int ret = 0;
2082
2083 bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2084 if (!bcare_ctl)
2085 return -ENOMEM;
2086
2087 bcare_ctl->handle = handle;
2088
2089 sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2090 bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2091 bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2092 bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2093 bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2094
2095 ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2096 if (ret)
2097 goto outkzalloc;
2098
2099 /* 0x0115 is for models with no health reporting capability */
2100 if (handle == 0x0115)
2101 return 0;
2102
2103 sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2104 bcare_ctl->attrs[1].attr.name = "battery_care_health";
2105 bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2106 bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2107
2108 ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2109 if (ret)
2110 goto outlimiter;
2111
2112 return 0;
2113
2114 outlimiter:
2115 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2116
2117 outkzalloc:
2118 kfree(bcare_ctl);
2119 bcare_ctl = NULL;
2120
2121 return ret;
2122 }
2123
sony_nc_battery_care_cleanup(struct platform_device * pd)2124 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2125 {
2126 if (bcare_ctl) {
2127 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2128 if (bcare_ctl->handle != 0x0115)
2129 device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2130
2131 kfree(bcare_ctl);
2132 bcare_ctl = NULL;
2133 }
2134 }
2135
2136 struct snc_thermal_ctrl {
2137 unsigned int mode;
2138 unsigned int profiles;
2139 struct device_attribute mode_attr;
2140 struct device_attribute profiles_attr;
2141 };
2142 static struct snc_thermal_ctrl *th_handle;
2143
2144 #define THM_PROFILE_MAX 3
2145 static const char * const snc_thermal_profiles[] = {
2146 "balanced",
2147 "silent",
2148 "performance"
2149 };
2150
sony_nc_thermal_mode_set(unsigned short mode)2151 static int sony_nc_thermal_mode_set(unsigned short mode)
2152 {
2153 unsigned int result;
2154
2155 /* the thermal profile seems to be a two bit bitmask:
2156 * lsb -> silent
2157 * msb -> performance
2158 * no bit set is the normal operation and is always valid
2159 * Some vaio models only have "balanced" and "performance"
2160 */
2161 if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2162 return -EINVAL;
2163
2164 if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2165 return -EIO;
2166
2167 th_handle->mode = mode;
2168
2169 return 0;
2170 }
2171
sony_nc_thermal_mode_get(void)2172 static int sony_nc_thermal_mode_get(void)
2173 {
2174 unsigned int result;
2175
2176 if (sony_call_snc_handle(0x0122, 0x0100, &result))
2177 return -EIO;
2178
2179 return result & 0xff;
2180 }
2181
sony_nc_thermal_profiles_show(struct device * dev,struct device_attribute * attr,char * buffer)2182 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2183 struct device_attribute *attr, char *buffer)
2184 {
2185 short cnt;
2186 size_t idx = 0;
2187
2188 for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2189 if (!cnt || (th_handle->profiles & cnt))
2190 idx += scnprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2191 snc_thermal_profiles[cnt]);
2192 }
2193 idx += scnprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2194
2195 return idx;
2196 }
2197
sony_nc_thermal_mode_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2198 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2199 struct device_attribute *attr,
2200 const char *buffer, size_t count)
2201 {
2202 unsigned short cmd;
2203 size_t len = count;
2204
2205 if (count == 0)
2206 return -EINVAL;
2207
2208 /* skip the newline if present */
2209 if (buffer[len - 1] == '\n')
2210 len--;
2211
2212 for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2213 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2214 break;
2215
2216 if (sony_nc_thermal_mode_set(cmd))
2217 return -EIO;
2218
2219 return count;
2220 }
2221
sony_nc_thermal_mode_show(struct device * dev,struct device_attribute * attr,char * buffer)2222 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2223 struct device_attribute *attr, char *buffer)
2224 {
2225 ssize_t count = 0;
2226 int mode = sony_nc_thermal_mode_get();
2227
2228 if (mode < 0)
2229 return mode;
2230
2231 count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2232
2233 return count;
2234 }
2235
sony_nc_thermal_setup(struct platform_device * pd)2236 static int sony_nc_thermal_setup(struct platform_device *pd)
2237 {
2238 int ret = 0;
2239 th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2240 if (!th_handle)
2241 return -ENOMEM;
2242
2243 ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2244 if (ret) {
2245 pr_warn("couldn't to read the thermal profiles\n");
2246 goto outkzalloc;
2247 }
2248
2249 ret = sony_nc_thermal_mode_get();
2250 if (ret < 0) {
2251 pr_warn("couldn't to read the current thermal profile");
2252 goto outkzalloc;
2253 }
2254 th_handle->mode = ret;
2255
2256 sysfs_attr_init(&th_handle->profiles_attr.attr);
2257 th_handle->profiles_attr.attr.name = "thermal_profiles";
2258 th_handle->profiles_attr.attr.mode = S_IRUGO;
2259 th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2260
2261 sysfs_attr_init(&th_handle->mode_attr.attr);
2262 th_handle->mode_attr.attr.name = "thermal_control";
2263 th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2264 th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2265 th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2266
2267 ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2268 if (ret)
2269 goto outkzalloc;
2270
2271 ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2272 if (ret)
2273 goto outprofiles;
2274
2275 return 0;
2276
2277 outprofiles:
2278 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2279 outkzalloc:
2280 kfree(th_handle);
2281 th_handle = NULL;
2282 return ret;
2283 }
2284
sony_nc_thermal_cleanup(struct platform_device * pd)2285 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2286 {
2287 if (th_handle) {
2288 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2289 device_remove_file(&pd->dev, &th_handle->mode_attr);
2290 kfree(th_handle);
2291 th_handle = NULL;
2292 }
2293 }
2294
2295 #ifdef CONFIG_PM_SLEEP
sony_nc_thermal_resume(void)2296 static void sony_nc_thermal_resume(void)
2297 {
2298 int status;
2299
2300 if (!th_handle)
2301 return;
2302
2303 status = sony_nc_thermal_mode_get();
2304
2305 if (status != th_handle->mode)
2306 sony_nc_thermal_mode_set(th_handle->mode);
2307 }
2308 #endif
2309
2310 /* resume on LID open */
2311 #define LID_RESUME_S5 0
2312 #define LID_RESUME_S4 1
2313 #define LID_RESUME_S3 2
2314 #define LID_RESUME_MAX 3
2315 struct snc_lid_resume_control {
2316 struct device_attribute attrs[LID_RESUME_MAX];
2317 unsigned int status;
2318 int handle;
2319 };
2320 static struct snc_lid_resume_control *lid_ctl;
2321
sony_nc_lid_resume_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2322 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2323 struct device_attribute *attr,
2324 const char *buffer, size_t count)
2325 {
2326 unsigned int result;
2327 unsigned long value;
2328 unsigned int pos = LID_RESUME_S5;
2329 if (count > 31)
2330 return -EINVAL;
2331
2332 if (kstrtoul(buffer, 10, &value) || value > 1)
2333 return -EINVAL;
2334
2335 /* the value we have to write to SNC is a bitmask:
2336 * +--------------+
2337 * | S3 | S4 | S5 |
2338 * +--------------+
2339 * 2 1 0
2340 */
2341 while (pos < LID_RESUME_MAX) {
2342 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2343 break;
2344 pos++;
2345 }
2346 if (pos == LID_RESUME_MAX)
2347 return -EINVAL;
2348
2349 if (value)
2350 value = lid_ctl->status | (1 << pos);
2351 else
2352 value = lid_ctl->status & ~(1 << pos);
2353
2354 if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2355 &result))
2356 return -EIO;
2357
2358 lid_ctl->status = value;
2359
2360 return count;
2361 }
2362
sony_nc_lid_resume_show(struct device * dev,struct device_attribute * attr,char * buffer)2363 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2364 struct device_attribute *attr,
2365 char *buffer)
2366 {
2367 unsigned int pos = LID_RESUME_S5;
2368
2369 while (pos < LID_RESUME_MAX) {
2370 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2371 return snprintf(buffer, PAGE_SIZE, "%d\n",
2372 (lid_ctl->status >> pos) & 0x01);
2373 pos++;
2374 }
2375 return -EINVAL;
2376 }
2377
sony_nc_lid_resume_setup(struct platform_device * pd,unsigned int handle)2378 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2379 unsigned int handle)
2380 {
2381 unsigned int result;
2382 int i;
2383
2384 if (sony_call_snc_handle(handle, 0x0000, &result))
2385 return -EIO;
2386
2387 lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2388 if (!lid_ctl)
2389 return -ENOMEM;
2390
2391 lid_ctl->status = result & 0x7;
2392 lid_ctl->handle = handle;
2393
2394 sysfs_attr_init(&lid_ctl->attrs[0].attr);
2395 lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2396 lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2397 lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2398 lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2399
2400 if (handle == 0x0119) {
2401 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2402 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2403 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2404 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2405 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2406
2407 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2408 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2409 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2410 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2411 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2412 }
2413 for (i = 0; i < LID_RESUME_MAX &&
2414 lid_ctl->attrs[i].attr.name; i++) {
2415 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2416 if (result)
2417 goto liderror;
2418 }
2419
2420 return 0;
2421
2422 liderror:
2423 for (i--; i >= 0; i--)
2424 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2425
2426 kfree(lid_ctl);
2427 lid_ctl = NULL;
2428
2429 return result;
2430 }
2431
sony_nc_lid_resume_cleanup(struct platform_device * pd)2432 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2433 {
2434 int i;
2435
2436 if (lid_ctl) {
2437 for (i = 0; i < LID_RESUME_MAX; i++) {
2438 if (!lid_ctl->attrs[i].attr.name)
2439 break;
2440
2441 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2442 }
2443
2444 kfree(lid_ctl);
2445 lid_ctl = NULL;
2446 }
2447 }
2448
2449 /* GFX Switch position */
2450 enum gfx_switch {
2451 SPEED,
2452 STAMINA,
2453 AUTO
2454 };
2455 struct snc_gfx_switch_control {
2456 struct device_attribute attr;
2457 unsigned int handle;
2458 };
2459 static struct snc_gfx_switch_control *gfxs_ctl;
2460
2461 /* returns 0 for speed, 1 for stamina */
__sony_nc_gfx_switch_status_get(void)2462 static int __sony_nc_gfx_switch_status_get(void)
2463 {
2464 unsigned int result;
2465
2466 if (sony_call_snc_handle(gfxs_ctl->handle,
2467 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2468 &result))
2469 return -EIO;
2470
2471 switch (gfxs_ctl->handle) {
2472 case 0x0146:
2473 /* 1: discrete GFX (speed)
2474 * 0: integrated GFX (stamina)
2475 */
2476 return result & 0x1 ? SPEED : STAMINA;
2477 break;
2478 case 0x015B:
2479 /* 0: discrete GFX (speed)
2480 * 1: integrated GFX (stamina)
2481 */
2482 return result & 0x1 ? STAMINA : SPEED;
2483 break;
2484 case 0x0128:
2485 /* it's a more elaborated bitmask, for now:
2486 * 2: integrated GFX (stamina)
2487 * 0: discrete GFX (speed)
2488 */
2489 dprintk("GFX Status: 0x%x\n", result);
2490 return result & 0x80 ? AUTO :
2491 result & 0x02 ? STAMINA : SPEED;
2492 break;
2493 }
2494 return -EINVAL;
2495 }
2496
sony_nc_gfx_switch_status_show(struct device * dev,struct device_attribute * attr,char * buffer)2497 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2498 struct device_attribute *attr,
2499 char *buffer)
2500 {
2501 int pos = __sony_nc_gfx_switch_status_get();
2502
2503 if (pos < 0)
2504 return pos;
2505
2506 return snprintf(buffer, PAGE_SIZE, "%s\n",
2507 pos == SPEED ? "speed" :
2508 pos == STAMINA ? "stamina" :
2509 pos == AUTO ? "auto" : "unknown");
2510 }
2511
sony_nc_gfx_switch_setup(struct platform_device * pd,unsigned int handle)2512 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2513 unsigned int handle)
2514 {
2515 unsigned int result;
2516
2517 gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2518 if (!gfxs_ctl)
2519 return -ENOMEM;
2520
2521 gfxs_ctl->handle = handle;
2522
2523 sysfs_attr_init(&gfxs_ctl->attr.attr);
2524 gfxs_ctl->attr.attr.name = "gfx_switch_status";
2525 gfxs_ctl->attr.attr.mode = S_IRUGO;
2526 gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2527
2528 result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2529 if (result)
2530 goto gfxerror;
2531
2532 return 0;
2533
2534 gfxerror:
2535 kfree(gfxs_ctl);
2536 gfxs_ctl = NULL;
2537
2538 return result;
2539 }
2540
sony_nc_gfx_switch_cleanup(struct platform_device * pd)2541 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2542 {
2543 if (gfxs_ctl) {
2544 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2545
2546 kfree(gfxs_ctl);
2547 gfxs_ctl = NULL;
2548 }
2549 }
2550
2551 /* High speed charging function */
2552 static struct device_attribute *hsc_handle;
2553
sony_nc_highspeed_charging_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2554 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2555 struct device_attribute *attr,
2556 const char *buffer, size_t count)
2557 {
2558 unsigned int result;
2559 unsigned long value;
2560
2561 if (count > 31)
2562 return -EINVAL;
2563
2564 if (kstrtoul(buffer, 10, &value) || value > 1)
2565 return -EINVAL;
2566
2567 if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2568 return -EIO;
2569
2570 return count;
2571 }
2572
sony_nc_highspeed_charging_show(struct device * dev,struct device_attribute * attr,char * buffer)2573 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2574 struct device_attribute *attr, char *buffer)
2575 {
2576 unsigned int result;
2577
2578 if (sony_call_snc_handle(0x0131, 0x0100, &result))
2579 return -EIO;
2580
2581 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2582 }
2583
sony_nc_highspeed_charging_setup(struct platform_device * pd)2584 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2585 {
2586 unsigned int result;
2587
2588 if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2589 /* some models advertise the handle but have no implementation
2590 * for it
2591 */
2592 pr_info("No High Speed Charging capability found\n");
2593 return 0;
2594 }
2595
2596 hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2597 if (!hsc_handle)
2598 return -ENOMEM;
2599
2600 sysfs_attr_init(&hsc_handle->attr);
2601 hsc_handle->attr.name = "battery_highspeed_charging";
2602 hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2603 hsc_handle->show = sony_nc_highspeed_charging_show;
2604 hsc_handle->store = sony_nc_highspeed_charging_store;
2605
2606 result = device_create_file(&pd->dev, hsc_handle);
2607 if (result) {
2608 kfree(hsc_handle);
2609 hsc_handle = NULL;
2610 return result;
2611 }
2612
2613 return 0;
2614 }
2615
sony_nc_highspeed_charging_cleanup(struct platform_device * pd)2616 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2617 {
2618 if (hsc_handle) {
2619 device_remove_file(&pd->dev, hsc_handle);
2620 kfree(hsc_handle);
2621 hsc_handle = NULL;
2622 }
2623 }
2624
2625 /* low battery function */
2626 static struct device_attribute *lowbatt_handle;
2627
sony_nc_lowbatt_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2628 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2629 struct device_attribute *attr,
2630 const char *buffer, size_t count)
2631 {
2632 unsigned int result;
2633 unsigned long value;
2634
2635 if (count > 31)
2636 return -EINVAL;
2637
2638 if (kstrtoul(buffer, 10, &value) || value > 1)
2639 return -EINVAL;
2640
2641 if (sony_call_snc_handle(0x0121, value << 8, &result))
2642 return -EIO;
2643
2644 return count;
2645 }
2646
sony_nc_lowbatt_show(struct device * dev,struct device_attribute * attr,char * buffer)2647 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2648 struct device_attribute *attr, char *buffer)
2649 {
2650 unsigned int result;
2651
2652 if (sony_call_snc_handle(0x0121, 0x0200, &result))
2653 return -EIO;
2654
2655 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2656 }
2657
sony_nc_lowbatt_setup(struct platform_device * pd)2658 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2659 {
2660 unsigned int result;
2661
2662 lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2663 if (!lowbatt_handle)
2664 return -ENOMEM;
2665
2666 sysfs_attr_init(&lowbatt_handle->attr);
2667 lowbatt_handle->attr.name = "lowbatt_hibernate";
2668 lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2669 lowbatt_handle->show = sony_nc_lowbatt_show;
2670 lowbatt_handle->store = sony_nc_lowbatt_store;
2671
2672 result = device_create_file(&pd->dev, lowbatt_handle);
2673 if (result) {
2674 kfree(lowbatt_handle);
2675 lowbatt_handle = NULL;
2676 return result;
2677 }
2678
2679 return 0;
2680 }
2681
sony_nc_lowbatt_cleanup(struct platform_device * pd)2682 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2683 {
2684 if (lowbatt_handle) {
2685 device_remove_file(&pd->dev, lowbatt_handle);
2686 kfree(lowbatt_handle);
2687 lowbatt_handle = NULL;
2688 }
2689 }
2690
2691 /* fan speed function */
2692 static struct device_attribute *fan_handle, *hsf_handle;
2693
sony_nc_hsfan_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2694 static ssize_t sony_nc_hsfan_store(struct device *dev,
2695 struct device_attribute *attr,
2696 const char *buffer, size_t count)
2697 {
2698 unsigned int result;
2699 unsigned long value;
2700
2701 if (count > 31)
2702 return -EINVAL;
2703
2704 if (kstrtoul(buffer, 10, &value) || value > 1)
2705 return -EINVAL;
2706
2707 if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2708 return -EIO;
2709
2710 return count;
2711 }
2712
sony_nc_hsfan_show(struct device * dev,struct device_attribute * attr,char * buffer)2713 static ssize_t sony_nc_hsfan_show(struct device *dev,
2714 struct device_attribute *attr, char *buffer)
2715 {
2716 unsigned int result;
2717
2718 if (sony_call_snc_handle(0x0149, 0x0100, &result))
2719 return -EIO;
2720
2721 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2722 }
2723
sony_nc_fanspeed_show(struct device * dev,struct device_attribute * attr,char * buffer)2724 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2725 struct device_attribute *attr, char *buffer)
2726 {
2727 unsigned int result;
2728
2729 if (sony_call_snc_handle(0x0149, 0x0300, &result))
2730 return -EIO;
2731
2732 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2733 }
2734
sony_nc_fanspeed_setup(struct platform_device * pd)2735 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2736 {
2737 unsigned int result;
2738
2739 fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2740 if (!fan_handle)
2741 return -ENOMEM;
2742
2743 hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2744 if (!hsf_handle) {
2745 result = -ENOMEM;
2746 goto out_hsf_handle_alloc;
2747 }
2748
2749 sysfs_attr_init(&fan_handle->attr);
2750 fan_handle->attr.name = "fanspeed";
2751 fan_handle->attr.mode = S_IRUGO;
2752 fan_handle->show = sony_nc_fanspeed_show;
2753 fan_handle->store = NULL;
2754
2755 sysfs_attr_init(&hsf_handle->attr);
2756 hsf_handle->attr.name = "fan_forced";
2757 hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2758 hsf_handle->show = sony_nc_hsfan_show;
2759 hsf_handle->store = sony_nc_hsfan_store;
2760
2761 result = device_create_file(&pd->dev, fan_handle);
2762 if (result)
2763 goto out_fan_handle;
2764
2765 result = device_create_file(&pd->dev, hsf_handle);
2766 if (result)
2767 goto out_hsf_handle;
2768
2769 return 0;
2770
2771 out_hsf_handle:
2772 device_remove_file(&pd->dev, fan_handle);
2773
2774 out_fan_handle:
2775 kfree(hsf_handle);
2776 hsf_handle = NULL;
2777
2778 out_hsf_handle_alloc:
2779 kfree(fan_handle);
2780 fan_handle = NULL;
2781 return result;
2782 }
2783
sony_nc_fanspeed_cleanup(struct platform_device * pd)2784 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2785 {
2786 if (fan_handle) {
2787 device_remove_file(&pd->dev, fan_handle);
2788 kfree(fan_handle);
2789 fan_handle = NULL;
2790 }
2791 if (hsf_handle) {
2792 device_remove_file(&pd->dev, hsf_handle);
2793 kfree(hsf_handle);
2794 hsf_handle = NULL;
2795 }
2796 }
2797
2798 /* USB charge function */
2799 static struct device_attribute *uc_handle;
2800
sony_nc_usb_charge_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2801 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2802 struct device_attribute *attr,
2803 const char *buffer, size_t count)
2804 {
2805 unsigned int result;
2806 unsigned long value;
2807
2808 if (count > 31)
2809 return -EINVAL;
2810
2811 if (kstrtoul(buffer, 10, &value) || value > 1)
2812 return -EINVAL;
2813
2814 if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2815 return -EIO;
2816
2817 return count;
2818 }
2819
sony_nc_usb_charge_show(struct device * dev,struct device_attribute * attr,char * buffer)2820 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2821 struct device_attribute *attr, char *buffer)
2822 {
2823 unsigned int result;
2824
2825 if (sony_call_snc_handle(0x0155, 0x0000, &result))
2826 return -EIO;
2827
2828 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2829 }
2830
sony_nc_usb_charge_setup(struct platform_device * pd)2831 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2832 {
2833 unsigned int result;
2834
2835 if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2836 /* some models advertise the handle but have no implementation
2837 * for it
2838 */
2839 pr_info("No USB Charge capability found\n");
2840 return 0;
2841 }
2842
2843 uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2844 if (!uc_handle)
2845 return -ENOMEM;
2846
2847 sysfs_attr_init(&uc_handle->attr);
2848 uc_handle->attr.name = "usb_charge";
2849 uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2850 uc_handle->show = sony_nc_usb_charge_show;
2851 uc_handle->store = sony_nc_usb_charge_store;
2852
2853 result = device_create_file(&pd->dev, uc_handle);
2854 if (result) {
2855 kfree(uc_handle);
2856 uc_handle = NULL;
2857 return result;
2858 }
2859
2860 return 0;
2861 }
2862
sony_nc_usb_charge_cleanup(struct platform_device * pd)2863 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2864 {
2865 if (uc_handle) {
2866 device_remove_file(&pd->dev, uc_handle);
2867 kfree(uc_handle);
2868 uc_handle = NULL;
2869 }
2870 }
2871
2872 /* Panel ID function */
2873 static struct device_attribute *panel_handle;
2874
sony_nc_panelid_show(struct device * dev,struct device_attribute * attr,char * buffer)2875 static ssize_t sony_nc_panelid_show(struct device *dev,
2876 struct device_attribute *attr, char *buffer)
2877 {
2878 unsigned int result;
2879
2880 if (sony_call_snc_handle(0x011D, 0x0000, &result))
2881 return -EIO;
2882
2883 return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2884 }
2885
sony_nc_panelid_setup(struct platform_device * pd)2886 static int sony_nc_panelid_setup(struct platform_device *pd)
2887 {
2888 unsigned int result;
2889
2890 panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2891 if (!panel_handle)
2892 return -ENOMEM;
2893
2894 sysfs_attr_init(&panel_handle->attr);
2895 panel_handle->attr.name = "panel_id";
2896 panel_handle->attr.mode = S_IRUGO;
2897 panel_handle->show = sony_nc_panelid_show;
2898 panel_handle->store = NULL;
2899
2900 result = device_create_file(&pd->dev, panel_handle);
2901 if (result) {
2902 kfree(panel_handle);
2903 panel_handle = NULL;
2904 return result;
2905 }
2906
2907 return 0;
2908 }
2909
sony_nc_panelid_cleanup(struct platform_device * pd)2910 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2911 {
2912 if (panel_handle) {
2913 device_remove_file(&pd->dev, panel_handle);
2914 kfree(panel_handle);
2915 panel_handle = NULL;
2916 }
2917 }
2918
2919 /* smart connect function */
2920 static struct device_attribute *sc_handle;
2921
sony_nc_smart_conn_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2922 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2923 struct device_attribute *attr,
2924 const char *buffer, size_t count)
2925 {
2926 unsigned int result;
2927 unsigned long value;
2928
2929 if (count > 31)
2930 return -EINVAL;
2931
2932 if (kstrtoul(buffer, 10, &value) || value > 1)
2933 return -EINVAL;
2934
2935 if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2936 return -EIO;
2937
2938 return count;
2939 }
2940
sony_nc_smart_conn_setup(struct platform_device * pd)2941 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2942 {
2943 unsigned int result;
2944
2945 sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2946 if (!sc_handle)
2947 return -ENOMEM;
2948
2949 sysfs_attr_init(&sc_handle->attr);
2950 sc_handle->attr.name = "smart_connect";
2951 sc_handle->attr.mode = S_IWUSR;
2952 sc_handle->show = NULL;
2953 sc_handle->store = sony_nc_smart_conn_store;
2954
2955 result = device_create_file(&pd->dev, sc_handle);
2956 if (result) {
2957 kfree(sc_handle);
2958 sc_handle = NULL;
2959 return result;
2960 }
2961
2962 return 0;
2963 }
2964
sony_nc_smart_conn_cleanup(struct platform_device * pd)2965 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2966 {
2967 if (sc_handle) {
2968 device_remove_file(&pd->dev, sc_handle);
2969 kfree(sc_handle);
2970 sc_handle = NULL;
2971 }
2972 }
2973
2974 /* Touchpad enable/disable */
2975 struct touchpad_control {
2976 struct device_attribute attr;
2977 int handle;
2978 };
2979 static struct touchpad_control *tp_ctl;
2980
sony_nc_touchpad_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2981 static ssize_t sony_nc_touchpad_store(struct device *dev,
2982 struct device_attribute *attr, const char *buffer, size_t count)
2983 {
2984 unsigned int result;
2985 unsigned long value;
2986
2987 if (count > 31)
2988 return -EINVAL;
2989
2990 if (kstrtoul(buffer, 10, &value) || value > 1)
2991 return -EINVAL;
2992
2993 /* sysfs: 0 disabled, 1 enabled
2994 * EC: 0 enabled, 1 disabled
2995 */
2996 if (sony_call_snc_handle(tp_ctl->handle,
2997 (!value << 0x10) | 0x100, &result))
2998 return -EIO;
2999
3000 return count;
3001 }
3002
sony_nc_touchpad_show(struct device * dev,struct device_attribute * attr,char * buffer)3003 static ssize_t sony_nc_touchpad_show(struct device *dev,
3004 struct device_attribute *attr, char *buffer)
3005 {
3006 unsigned int result;
3007
3008 if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3009 return -EINVAL;
3010
3011 return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3012 }
3013
sony_nc_touchpad_setup(struct platform_device * pd,unsigned int handle)3014 static int sony_nc_touchpad_setup(struct platform_device *pd,
3015 unsigned int handle)
3016 {
3017 int ret = 0;
3018
3019 tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3020 if (!tp_ctl)
3021 return -ENOMEM;
3022
3023 tp_ctl->handle = handle;
3024
3025 sysfs_attr_init(&tp_ctl->attr.attr);
3026 tp_ctl->attr.attr.name = "touchpad";
3027 tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3028 tp_ctl->attr.show = sony_nc_touchpad_show;
3029 tp_ctl->attr.store = sony_nc_touchpad_store;
3030
3031 ret = device_create_file(&pd->dev, &tp_ctl->attr);
3032 if (ret) {
3033 kfree(tp_ctl);
3034 tp_ctl = NULL;
3035 }
3036
3037 return ret;
3038 }
3039
sony_nc_touchpad_cleanup(struct platform_device * pd)3040 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3041 {
3042 if (tp_ctl) {
3043 device_remove_file(&pd->dev, &tp_ctl->attr);
3044 kfree(tp_ctl);
3045 tp_ctl = NULL;
3046 }
3047 }
3048
sony_nc_backlight_ng_read_limits(int handle,struct sony_backlight_props * props)3049 static void sony_nc_backlight_ng_read_limits(int handle,
3050 struct sony_backlight_props *props)
3051 {
3052 u64 offset;
3053 int i;
3054 int lvl_table_len = 0;
3055 u8 min = 0xff, max = 0x00;
3056 unsigned char buffer[32] = { 0 };
3057
3058 props->handle = handle;
3059 props->offset = 0;
3060 props->maxlvl = 0xff;
3061
3062 offset = sony_find_snc_handle(handle);
3063
3064 /* try to read the boundaries from ACPI tables, if we fail the above
3065 * defaults should be reasonable
3066 */
3067 i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3068 32);
3069 if (i < 0)
3070 return;
3071
3072 switch (handle) {
3073 case 0x012f:
3074 case 0x0137:
3075 lvl_table_len = 9;
3076 break;
3077 case 0x143:
3078 case 0x14b:
3079 case 0x14c:
3080 lvl_table_len = 16;
3081 break;
3082 }
3083
3084 /* the buffer lists brightness levels available, brightness levels are
3085 * from position 0 to 8 in the array, other values are used by ALS
3086 * control.
3087 */
3088 for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3089
3090 dprintk("Brightness level: %d\n", buffer[i]);
3091
3092 if (!buffer[i])
3093 break;
3094
3095 if (buffer[i] > max)
3096 max = buffer[i];
3097 if (buffer[i] < min)
3098 min = buffer[i];
3099 }
3100 props->offset = min;
3101 props->maxlvl = max;
3102 dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3103 props->maxlvl);
3104 }
3105
sony_nc_backlight_setup(void)3106 static void sony_nc_backlight_setup(void)
3107 {
3108 int max_brightness = 0;
3109 const struct backlight_ops *ops = NULL;
3110 struct backlight_properties props;
3111
3112 if (sony_find_snc_handle(0x12f) >= 0) {
3113 ops = &sony_backlight_ng_ops;
3114 sony_bl_props.cmd_base = 0x0100;
3115 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3116 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3117
3118 } else if (sony_find_snc_handle(0x137) >= 0) {
3119 ops = &sony_backlight_ng_ops;
3120 sony_bl_props.cmd_base = 0x0100;
3121 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3122 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3123
3124 } else if (sony_find_snc_handle(0x143) >= 0) {
3125 ops = &sony_backlight_ng_ops;
3126 sony_bl_props.cmd_base = 0x3000;
3127 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3128 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3129
3130 } else if (sony_find_snc_handle(0x14b) >= 0) {
3131 ops = &sony_backlight_ng_ops;
3132 sony_bl_props.cmd_base = 0x3000;
3133 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3134 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3135
3136 } else if (sony_find_snc_handle(0x14c) >= 0) {
3137 ops = &sony_backlight_ng_ops;
3138 sony_bl_props.cmd_base = 0x3000;
3139 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3140 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3141
3142 } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3143 ops = &sony_backlight_ops;
3144 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3145
3146 } else
3147 return;
3148
3149 memset(&props, 0, sizeof(struct backlight_properties));
3150 props.type = BACKLIGHT_PLATFORM;
3151 props.max_brightness = max_brightness;
3152 sony_bl_props.dev = backlight_device_register("sony", NULL,
3153 &sony_bl_props,
3154 ops, &props);
3155
3156 if (IS_ERR(sony_bl_props.dev)) {
3157 pr_warn("unable to register backlight device\n");
3158 sony_bl_props.dev = NULL;
3159 } else
3160 sony_bl_props.dev->props.brightness =
3161 ops->get_brightness(sony_bl_props.dev);
3162 }
3163
sony_nc_backlight_cleanup(void)3164 static void sony_nc_backlight_cleanup(void)
3165 {
3166 backlight_device_unregister(sony_bl_props.dev);
3167 }
3168
sony_nc_add(struct acpi_device * device)3169 static int sony_nc_add(struct acpi_device *device)
3170 {
3171 acpi_status status;
3172 int result = 0;
3173 struct sony_nc_value *item;
3174
3175 sony_nc_acpi_device = device;
3176 strcpy(acpi_device_class(device), "sony/hotkey");
3177
3178 sony_nc_acpi_handle = device->handle;
3179
3180 /* read device status */
3181 result = acpi_bus_get_status(device);
3182 /* bail IFF the above call was successful and the device is not present */
3183 if (!result && !device->status.present) {
3184 dprintk("Device not present\n");
3185 result = -ENODEV;
3186 goto outwalk;
3187 }
3188
3189 result = sony_pf_add();
3190 if (result)
3191 goto outpresent;
3192
3193 if (debug) {
3194 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3195 sony_nc_acpi_handle, 1, sony_walk_callback,
3196 NULL, NULL, NULL);
3197 if (ACPI_FAILURE(status)) {
3198 pr_warn("unable to walk acpi resources\n");
3199 result = -ENODEV;
3200 goto outpresent;
3201 }
3202 }
3203
3204 result = sony_laptop_setup_input(device);
3205 if (result) {
3206 pr_err("Unable to create input devices\n");
3207 goto outplatform;
3208 }
3209
3210 if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3211 int arg = 1;
3212 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3213 dprintk("ECON Method failed\n");
3214 }
3215
3216 if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3217 dprintk("Doing SNC setup\n");
3218 /* retrieve the available handles */
3219 result = sony_nc_handles_setup(sony_pf_device);
3220 if (!result)
3221 sony_nc_function_setup(device, sony_pf_device);
3222 }
3223
3224 if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3225 sony_nc_backlight_setup();
3226
3227 /* create sony_pf sysfs attributes related to the SNC device */
3228 for (item = sony_nc_values; item->name; ++item) {
3229
3230 if (!debug && item->debug)
3231 continue;
3232
3233 /* find the available acpiget as described in the DSDT */
3234 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3235 if (acpi_has_method(sony_nc_acpi_handle,
3236 *item->acpiget)) {
3237 dprintk("Found %s getter: %s\n",
3238 item->name, *item->acpiget);
3239 item->devattr.attr.mode |= S_IRUGO;
3240 break;
3241 }
3242 }
3243
3244 /* find the available acpiset as described in the DSDT */
3245 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3246 if (acpi_has_method(sony_nc_acpi_handle,
3247 *item->acpiset)) {
3248 dprintk("Found %s setter: %s\n",
3249 item->name, *item->acpiset);
3250 item->devattr.attr.mode |= S_IWUSR;
3251 break;
3252 }
3253 }
3254
3255 if (item->devattr.attr.mode != 0) {
3256 result =
3257 device_create_file(&sony_pf_device->dev,
3258 &item->devattr);
3259 if (result)
3260 goto out_sysfs;
3261 }
3262 }
3263
3264 pr_info("SNC setup done.\n");
3265 return 0;
3266
3267 out_sysfs:
3268 for (item = sony_nc_values; item->name; ++item) {
3269 device_remove_file(&sony_pf_device->dev, &item->devattr);
3270 }
3271 sony_nc_backlight_cleanup();
3272 sony_nc_function_cleanup(sony_pf_device);
3273 sony_nc_handles_cleanup(sony_pf_device);
3274
3275 outplatform:
3276 sony_laptop_remove_input();
3277
3278 outpresent:
3279 sony_pf_remove();
3280
3281 outwalk:
3282 sony_nc_rfkill_cleanup();
3283 return result;
3284 }
3285
sony_nc_remove(struct acpi_device * device)3286 static int sony_nc_remove(struct acpi_device *device)
3287 {
3288 struct sony_nc_value *item;
3289
3290 sony_nc_backlight_cleanup();
3291
3292 sony_nc_acpi_device = NULL;
3293
3294 for (item = sony_nc_values; item->name; ++item) {
3295 device_remove_file(&sony_pf_device->dev, &item->devattr);
3296 }
3297
3298 sony_nc_function_cleanup(sony_pf_device);
3299 sony_nc_handles_cleanup(sony_pf_device);
3300 sony_pf_remove();
3301 sony_laptop_remove_input();
3302 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3303
3304 return 0;
3305 }
3306
3307 static const struct acpi_device_id sony_device_ids[] = {
3308 {SONY_NC_HID, 0},
3309 {SONY_PIC_HID, 0},
3310 {"", 0},
3311 };
3312 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3313
3314 static const struct acpi_device_id sony_nc_device_ids[] = {
3315 {SONY_NC_HID, 0},
3316 {"", 0},
3317 };
3318
3319 static struct acpi_driver sony_nc_driver = {
3320 .name = SONY_NC_DRIVER_NAME,
3321 .class = SONY_NC_CLASS,
3322 .ids = sony_nc_device_ids,
3323 .owner = THIS_MODULE,
3324 .ops = {
3325 .add = sony_nc_add,
3326 .remove = sony_nc_remove,
3327 .notify = sony_nc_notify,
3328 },
3329 .drv.pm = &sony_nc_pm,
3330 };
3331
3332 /*********** SPIC (SNY6001) Device ***********/
3333
3334 #define SONYPI_DEVICE_TYPE1 0x00000001
3335 #define SONYPI_DEVICE_TYPE2 0x00000002
3336 #define SONYPI_DEVICE_TYPE3 0x00000004
3337
3338 #define SONYPI_TYPE1_OFFSET 0x04
3339 #define SONYPI_TYPE2_OFFSET 0x12
3340 #define SONYPI_TYPE3_OFFSET 0x12
3341
3342 struct sony_pic_ioport {
3343 struct acpi_resource_io io1;
3344 struct acpi_resource_io io2;
3345 struct list_head list;
3346 };
3347
3348 struct sony_pic_irq {
3349 struct acpi_resource_irq irq;
3350 struct list_head list;
3351 };
3352
3353 struct sonypi_eventtypes {
3354 u8 data;
3355 unsigned long mask;
3356 struct sonypi_event *events;
3357 };
3358
3359 struct sony_pic_dev {
3360 struct acpi_device *acpi_dev;
3361 struct sony_pic_irq *cur_irq;
3362 struct sony_pic_ioport *cur_ioport;
3363 struct list_head interrupts;
3364 struct list_head ioports;
3365 struct mutex lock;
3366 struct sonypi_eventtypes *event_types;
3367 int (*handle_irq)(const u8, const u8);
3368 int model;
3369 u16 evport_offset;
3370 u8 camera_power;
3371 u8 bluetooth_power;
3372 u8 wwan_power;
3373 };
3374
3375 static struct sony_pic_dev spic_dev = {
3376 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
3377 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
3378 };
3379
3380 static int spic_drv_registered;
3381
3382 /* Event masks */
3383 #define SONYPI_JOGGER_MASK 0x00000001
3384 #define SONYPI_CAPTURE_MASK 0x00000002
3385 #define SONYPI_FNKEY_MASK 0x00000004
3386 #define SONYPI_BLUETOOTH_MASK 0x00000008
3387 #define SONYPI_PKEY_MASK 0x00000010
3388 #define SONYPI_BACK_MASK 0x00000020
3389 #define SONYPI_HELP_MASK 0x00000040
3390 #define SONYPI_LID_MASK 0x00000080
3391 #define SONYPI_ZOOM_MASK 0x00000100
3392 #define SONYPI_THUMBPHRASE_MASK 0x00000200
3393 #define SONYPI_MEYE_MASK 0x00000400
3394 #define SONYPI_MEMORYSTICK_MASK 0x00000800
3395 #define SONYPI_BATTERY_MASK 0x00001000
3396 #define SONYPI_WIRELESS_MASK 0x00002000
3397
3398 struct sonypi_event {
3399 u8 data;
3400 u8 event;
3401 };
3402
3403 /* The set of possible button release events */
3404 static struct sonypi_event sonypi_releaseev[] = {
3405 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3406 { 0, 0 }
3407 };
3408
3409 /* The set of possible jogger events */
3410 static struct sonypi_event sonypi_joggerev[] = {
3411 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3412 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3413 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3414 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3415 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3416 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3417 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3418 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3419 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3420 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3421 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3422 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3423 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3424 { 0, 0 }
3425 };
3426
3427 /* The set of possible capture button events */
3428 static struct sonypi_event sonypi_captureev[] = {
3429 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3430 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3431 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3432 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3433 { 0, 0 }
3434 };
3435
3436 /* The set of possible fnkeys events */
3437 static struct sonypi_event sonypi_fnkeyev[] = {
3438 { 0x10, SONYPI_EVENT_FNKEY_ESC },
3439 { 0x11, SONYPI_EVENT_FNKEY_F1 },
3440 { 0x12, SONYPI_EVENT_FNKEY_F2 },
3441 { 0x13, SONYPI_EVENT_FNKEY_F3 },
3442 { 0x14, SONYPI_EVENT_FNKEY_F4 },
3443 { 0x15, SONYPI_EVENT_FNKEY_F5 },
3444 { 0x16, SONYPI_EVENT_FNKEY_F6 },
3445 { 0x17, SONYPI_EVENT_FNKEY_F7 },
3446 { 0x18, SONYPI_EVENT_FNKEY_F8 },
3447 { 0x19, SONYPI_EVENT_FNKEY_F9 },
3448 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3449 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3450 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3451 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3452 { 0x21, SONYPI_EVENT_FNKEY_1 },
3453 { 0x22, SONYPI_EVENT_FNKEY_2 },
3454 { 0x31, SONYPI_EVENT_FNKEY_D },
3455 { 0x32, SONYPI_EVENT_FNKEY_E },
3456 { 0x33, SONYPI_EVENT_FNKEY_F },
3457 { 0x34, SONYPI_EVENT_FNKEY_S },
3458 { 0x35, SONYPI_EVENT_FNKEY_B },
3459 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3460 { 0, 0 }
3461 };
3462
3463 /* The set of possible program key events */
3464 static struct sonypi_event sonypi_pkeyev[] = {
3465 { 0x01, SONYPI_EVENT_PKEY_P1 },
3466 { 0x02, SONYPI_EVENT_PKEY_P2 },
3467 { 0x04, SONYPI_EVENT_PKEY_P3 },
3468 { 0x20, SONYPI_EVENT_PKEY_P1 },
3469 { 0, 0 }
3470 };
3471
3472 /* The set of possible bluetooth events */
3473 static struct sonypi_event sonypi_blueev[] = {
3474 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3475 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3476 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3477 { 0, 0 }
3478 };
3479
3480 /* The set of possible wireless events */
3481 static struct sonypi_event sonypi_wlessev[] = {
3482 { 0x59, SONYPI_EVENT_IGNORE },
3483 { 0x5a, SONYPI_EVENT_IGNORE },
3484 { 0, 0 }
3485 };
3486
3487 /* The set of possible back button events */
3488 static struct sonypi_event sonypi_backev[] = {
3489 { 0x20, SONYPI_EVENT_BACK_PRESSED },
3490 { 0, 0 }
3491 };
3492
3493 /* The set of possible help button events */
3494 static struct sonypi_event sonypi_helpev[] = {
3495 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3496 { 0, 0 }
3497 };
3498
3499
3500 /* The set of possible lid events */
3501 static struct sonypi_event sonypi_lidev[] = {
3502 { 0x51, SONYPI_EVENT_LID_CLOSED },
3503 { 0x50, SONYPI_EVENT_LID_OPENED },
3504 { 0, 0 }
3505 };
3506
3507 /* The set of possible zoom events */
3508 static struct sonypi_event sonypi_zoomev[] = {
3509 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3510 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3511 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3512 { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3513 { 0, 0 }
3514 };
3515
3516 /* The set of possible thumbphrase events */
3517 static struct sonypi_event sonypi_thumbphraseev[] = {
3518 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3519 { 0, 0 }
3520 };
3521
3522 /* The set of possible motioneye camera events */
3523 static struct sonypi_event sonypi_meyeev[] = {
3524 { 0x00, SONYPI_EVENT_MEYE_FACE },
3525 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3526 { 0, 0 }
3527 };
3528
3529 /* The set of possible memorystick events */
3530 static struct sonypi_event sonypi_memorystickev[] = {
3531 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3532 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3533 { 0, 0 }
3534 };
3535
3536 /* The set of possible battery events */
3537 static struct sonypi_event sonypi_batteryev[] = {
3538 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3539 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3540 { 0, 0 }
3541 };
3542
3543 /* The set of possible volume events */
3544 static struct sonypi_event sonypi_volumeev[] = {
3545 { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3546 { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3547 { 0, 0 }
3548 };
3549
3550 /* The set of possible brightness events */
3551 static struct sonypi_event sonypi_brightnessev[] = {
3552 { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3553 { 0, 0 }
3554 };
3555
3556 static struct sonypi_eventtypes type1_events[] = {
3557 { 0, 0xffffffff, sonypi_releaseev },
3558 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3559 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3560 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3561 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3562 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3563 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3564 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3565 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3566 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3567 { 0 },
3568 };
3569 static struct sonypi_eventtypes type2_events[] = {
3570 { 0, 0xffffffff, sonypi_releaseev },
3571 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3572 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3573 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3574 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3575 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3576 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3577 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3578 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3579 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3580 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3581 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3582 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3583 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3584 { 0 },
3585 };
3586 static struct sonypi_eventtypes type3_events[] = {
3587 { 0, 0xffffffff, sonypi_releaseev },
3588 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3589 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3590 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3591 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3592 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3593 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3594 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3595 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3596 { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3597 { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3598 { 0 },
3599 };
3600
3601 /* low level spic calls */
3602 #define ITERATIONS_LONG 10000
3603 #define ITERATIONS_SHORT 10
3604 #define wait_on_command(command, iterations) { \
3605 unsigned int n = iterations; \
3606 while (--n && (command)) \
3607 udelay(1); \
3608 if (!n) \
3609 dprintk("command failed at %s : %s (line %d)\n", \
3610 __FILE__, __func__, __LINE__); \
3611 }
3612
sony_pic_call1(u8 dev)3613 static u8 sony_pic_call1(u8 dev)
3614 {
3615 u8 v1, v2;
3616
3617 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3618 ITERATIONS_LONG);
3619 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3620 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3621 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3622 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3623 return v2;
3624 }
3625
sony_pic_call2(u8 dev,u8 fn)3626 static u8 sony_pic_call2(u8 dev, u8 fn)
3627 {
3628 u8 v1;
3629
3630 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3631 ITERATIONS_LONG);
3632 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3633 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3634 ITERATIONS_LONG);
3635 outb(fn, spic_dev.cur_ioport->io1.minimum);
3636 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3637 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3638 return v1;
3639 }
3640
sony_pic_call3(u8 dev,u8 fn,u8 v)3641 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3642 {
3643 u8 v1;
3644
3645 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3646 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3647 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3648 outb(fn, spic_dev.cur_ioport->io1.minimum);
3649 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3650 outb(v, spic_dev.cur_ioport->io1.minimum);
3651 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3652 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3653 dev, fn, v, v1);
3654 return v1;
3655 }
3656
3657 /*
3658 * minidrivers for SPIC models
3659 */
type3_handle_irq(const u8 data_mask,const u8 ev)3660 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3661 {
3662 /*
3663 * 0x31 could mean we have to take some extra action and wait for
3664 * the next irq for some Type3 models, it will generate a new
3665 * irq and we can read new data from the device:
3666 * - 0x5c and 0x5f requires 0xA0
3667 * - 0x61 requires 0xB3
3668 */
3669 if (data_mask == 0x31) {
3670 if (ev == 0x5c || ev == 0x5f)
3671 sony_pic_call1(0xA0);
3672 else if (ev == 0x61)
3673 sony_pic_call1(0xB3);
3674 return 0;
3675 }
3676 return 1;
3677 }
3678
sony_pic_detect_device_type(struct sony_pic_dev * dev)3679 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3680 {
3681 struct pci_dev *pcidev;
3682
3683 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3684 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3685 if (pcidev) {
3686 dev->model = SONYPI_DEVICE_TYPE1;
3687 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3688 dev->event_types = type1_events;
3689 goto out;
3690 }
3691
3692 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3693 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3694 if (pcidev) {
3695 dev->model = SONYPI_DEVICE_TYPE2;
3696 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3697 dev->event_types = type2_events;
3698 goto out;
3699 }
3700
3701 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3702 PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3703 if (pcidev) {
3704 dev->model = SONYPI_DEVICE_TYPE3;
3705 dev->handle_irq = type3_handle_irq;
3706 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3707 dev->event_types = type3_events;
3708 goto out;
3709 }
3710
3711 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3712 PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3713 if (pcidev) {
3714 dev->model = SONYPI_DEVICE_TYPE3;
3715 dev->handle_irq = type3_handle_irq;
3716 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3717 dev->event_types = type3_events;
3718 goto out;
3719 }
3720
3721 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3722 PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3723 if (pcidev) {
3724 dev->model = SONYPI_DEVICE_TYPE3;
3725 dev->handle_irq = type3_handle_irq;
3726 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3727 dev->event_types = type3_events;
3728 goto out;
3729 }
3730
3731 /* default */
3732 dev->model = SONYPI_DEVICE_TYPE2;
3733 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3734 dev->event_types = type2_events;
3735
3736 out:
3737 pci_dev_put(pcidev);
3738
3739 pr_info("detected Type%d model\n",
3740 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3741 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3742 }
3743
3744 /* camera tests and poweron/poweroff */
3745 #define SONYPI_CAMERA_PICTURE 5
3746 #define SONYPI_CAMERA_CONTROL 0x10
3747
3748 #define SONYPI_CAMERA_BRIGHTNESS 0
3749 #define SONYPI_CAMERA_CONTRAST 1
3750 #define SONYPI_CAMERA_HUE 2
3751 #define SONYPI_CAMERA_COLOR 3
3752 #define SONYPI_CAMERA_SHARPNESS 4
3753
3754 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
3755 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
3756 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
3757 #define SONYPI_CAMERA_MUTE_MASK 0x40
3758
3759 /* the rest don't need a loop until not 0xff */
3760 #define SONYPI_CAMERA_AGC 6
3761 #define SONYPI_CAMERA_AGC_MASK 0x30
3762 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
3763
3764 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
3765 #define SONYPI_CAMERA_CONTROL 0x10
3766
3767 #define SONYPI_CAMERA_STATUS 7
3768 #define SONYPI_CAMERA_STATUS_READY 0x2
3769 #define SONYPI_CAMERA_STATUS_POSITION 0x4
3770
3771 #define SONYPI_DIRECTION_BACKWARDS 0x4
3772
3773 #define SONYPI_CAMERA_REVISION 8
3774 #define SONYPI_CAMERA_ROMVERSION 9
3775
__sony_pic_camera_ready(void)3776 static int __sony_pic_camera_ready(void)
3777 {
3778 u8 v;
3779
3780 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3781 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3782 }
3783
__sony_pic_camera_off(void)3784 static int __sony_pic_camera_off(void)
3785 {
3786 if (!camera) {
3787 pr_warn("camera control not enabled\n");
3788 return -ENODEV;
3789 }
3790
3791 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3792 SONYPI_CAMERA_MUTE_MASK),
3793 ITERATIONS_SHORT);
3794
3795 if (spic_dev.camera_power) {
3796 sony_pic_call2(0x91, 0);
3797 spic_dev.camera_power = 0;
3798 }
3799 return 0;
3800 }
3801
__sony_pic_camera_on(void)3802 static int __sony_pic_camera_on(void)
3803 {
3804 int i, j, x;
3805
3806 if (!camera) {
3807 pr_warn("camera control not enabled\n");
3808 return -ENODEV;
3809 }
3810
3811 if (spic_dev.camera_power)
3812 return 0;
3813
3814 for (j = 5; j > 0; j--) {
3815
3816 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3817 msleep(10);
3818 sony_pic_call1(0x93);
3819
3820 for (i = 400; i > 0; i--) {
3821 if (__sony_pic_camera_ready())
3822 break;
3823 msleep(10);
3824 }
3825 if (i)
3826 break;
3827 }
3828
3829 if (j == 0) {
3830 pr_warn("failed to power on camera\n");
3831 return -ENODEV;
3832 }
3833
3834 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3835 0x5a),
3836 ITERATIONS_SHORT);
3837
3838 spic_dev.camera_power = 1;
3839 return 0;
3840 }
3841
3842 /* External camera command (exported to the motion eye v4l driver) */
sony_pic_camera_command(int command,u8 value)3843 int sony_pic_camera_command(int command, u8 value)
3844 {
3845 if (!camera)
3846 return -EIO;
3847
3848 mutex_lock(&spic_dev.lock);
3849
3850 switch (command) {
3851 case SONY_PIC_COMMAND_SETCAMERA:
3852 if (value)
3853 __sony_pic_camera_on();
3854 else
3855 __sony_pic_camera_off();
3856 break;
3857 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3858 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3859 ITERATIONS_SHORT);
3860 break;
3861 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3862 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3863 ITERATIONS_SHORT);
3864 break;
3865 case SONY_PIC_COMMAND_SETCAMERAHUE:
3866 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3867 ITERATIONS_SHORT);
3868 break;
3869 case SONY_PIC_COMMAND_SETCAMERACOLOR:
3870 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3871 ITERATIONS_SHORT);
3872 break;
3873 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3874 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3875 ITERATIONS_SHORT);
3876 break;
3877 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3878 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3879 ITERATIONS_SHORT);
3880 break;
3881 case SONY_PIC_COMMAND_SETCAMERAAGC:
3882 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3883 ITERATIONS_SHORT);
3884 break;
3885 default:
3886 pr_err("sony_pic_camera_command invalid: %d\n", command);
3887 break;
3888 }
3889 mutex_unlock(&spic_dev.lock);
3890 return 0;
3891 }
3892 EXPORT_SYMBOL(sony_pic_camera_command);
3893
3894 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
__sony_pic_set_wwanpower(u8 state)3895 static void __sony_pic_set_wwanpower(u8 state)
3896 {
3897 state = !!state;
3898 if (spic_dev.wwan_power == state)
3899 return;
3900 sony_pic_call2(0xB0, state);
3901 sony_pic_call1(0x82);
3902 spic_dev.wwan_power = state;
3903 }
3904
sony_pic_wwanpower_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)3905 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3906 struct device_attribute *attr,
3907 const char *buffer, size_t count)
3908 {
3909 unsigned long value;
3910 if (count > 31)
3911 return -EINVAL;
3912
3913 if (kstrtoul(buffer, 10, &value))
3914 return -EINVAL;
3915
3916 mutex_lock(&spic_dev.lock);
3917 __sony_pic_set_wwanpower(value);
3918 mutex_unlock(&spic_dev.lock);
3919
3920 return count;
3921 }
3922
sony_pic_wwanpower_show(struct device * dev,struct device_attribute * attr,char * buffer)3923 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3924 struct device_attribute *attr, char *buffer)
3925 {
3926 ssize_t count;
3927 mutex_lock(&spic_dev.lock);
3928 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3929 mutex_unlock(&spic_dev.lock);
3930 return count;
3931 }
3932
3933 /* bluetooth subsystem power state */
__sony_pic_set_bluetoothpower(u8 state)3934 static void __sony_pic_set_bluetoothpower(u8 state)
3935 {
3936 state = !!state;
3937 if (spic_dev.bluetooth_power == state)
3938 return;
3939 sony_pic_call2(0x96, state);
3940 sony_pic_call1(0x82);
3941 spic_dev.bluetooth_power = state;
3942 }
3943
sony_pic_bluetoothpower_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)3944 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3945 struct device_attribute *attr,
3946 const char *buffer, size_t count)
3947 {
3948 unsigned long value;
3949 if (count > 31)
3950 return -EINVAL;
3951
3952 if (kstrtoul(buffer, 10, &value))
3953 return -EINVAL;
3954
3955 mutex_lock(&spic_dev.lock);
3956 __sony_pic_set_bluetoothpower(value);
3957 mutex_unlock(&spic_dev.lock);
3958
3959 return count;
3960 }
3961
sony_pic_bluetoothpower_show(struct device * dev,struct device_attribute * attr,char * buffer)3962 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3963 struct device_attribute *attr, char *buffer)
3964 {
3965 ssize_t count = 0;
3966 mutex_lock(&spic_dev.lock);
3967 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3968 mutex_unlock(&spic_dev.lock);
3969 return count;
3970 }
3971
3972 /* fan speed */
3973 /* FAN0 information (reverse engineered from ACPI tables) */
3974 #define SONY_PIC_FAN0_STATUS 0x93
sony_pic_set_fanspeed(unsigned long value)3975 static int sony_pic_set_fanspeed(unsigned long value)
3976 {
3977 return ec_write(SONY_PIC_FAN0_STATUS, value);
3978 }
3979
sony_pic_get_fanspeed(u8 * value)3980 static int sony_pic_get_fanspeed(u8 *value)
3981 {
3982 return ec_read(SONY_PIC_FAN0_STATUS, value);
3983 }
3984
sony_pic_fanspeed_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)3985 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3986 struct device_attribute *attr,
3987 const char *buffer, size_t count)
3988 {
3989 unsigned long value;
3990 if (count > 31)
3991 return -EINVAL;
3992
3993 if (kstrtoul(buffer, 10, &value))
3994 return -EINVAL;
3995
3996 if (sony_pic_set_fanspeed(value))
3997 return -EIO;
3998
3999 return count;
4000 }
4001
sony_pic_fanspeed_show(struct device * dev,struct device_attribute * attr,char * buffer)4002 static ssize_t sony_pic_fanspeed_show(struct device *dev,
4003 struct device_attribute *attr, char *buffer)
4004 {
4005 u8 value = 0;
4006 if (sony_pic_get_fanspeed(&value))
4007 return -EIO;
4008
4009 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4010 }
4011
4012 #define SPIC_ATTR(_name, _mode) \
4013 struct device_attribute spic_attr_##_name = __ATTR(_name, \
4014 _mode, sony_pic_## _name ##_show, \
4015 sony_pic_## _name ##_store)
4016
4017 static SPIC_ATTR(bluetoothpower, 0644);
4018 static SPIC_ATTR(wwanpower, 0644);
4019 static SPIC_ATTR(fanspeed, 0644);
4020
4021 static struct attribute *spic_attributes[] = {
4022 &spic_attr_bluetoothpower.attr,
4023 &spic_attr_wwanpower.attr,
4024 &spic_attr_fanspeed.attr,
4025 NULL
4026 };
4027
4028 static const struct attribute_group spic_attribute_group = {
4029 .attrs = spic_attributes
4030 };
4031
4032 /******** SONYPI compatibility **********/
4033 #ifdef CONFIG_SONYPI_COMPAT
4034
4035 /* battery / brightness / temperature addresses */
4036 #define SONYPI_BAT_FLAGS 0x81
4037 #define SONYPI_LCD_LIGHT 0x96
4038 #define SONYPI_BAT1_PCTRM 0xa0
4039 #define SONYPI_BAT1_LEFT 0xa2
4040 #define SONYPI_BAT1_MAXRT 0xa4
4041 #define SONYPI_BAT2_PCTRM 0xa8
4042 #define SONYPI_BAT2_LEFT 0xaa
4043 #define SONYPI_BAT2_MAXRT 0xac
4044 #define SONYPI_BAT1_MAXTK 0xb0
4045 #define SONYPI_BAT1_FULL 0xb2
4046 #define SONYPI_BAT2_MAXTK 0xb8
4047 #define SONYPI_BAT2_FULL 0xba
4048 #define SONYPI_TEMP_STATUS 0xC1
4049
4050 struct sonypi_compat_s {
4051 struct fasync_struct *fifo_async;
4052 struct kfifo fifo;
4053 spinlock_t fifo_lock;
4054 wait_queue_head_t fifo_proc_list;
4055 atomic_t open_count;
4056 };
4057 static struct sonypi_compat_s sonypi_compat = {
4058 .open_count = ATOMIC_INIT(0),
4059 };
4060
sonypi_misc_fasync(int fd,struct file * filp,int on)4061 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4062 {
4063 return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4064 }
4065
sonypi_misc_release(struct inode * inode,struct file * file)4066 static int sonypi_misc_release(struct inode *inode, struct file *file)
4067 {
4068 atomic_dec(&sonypi_compat.open_count);
4069 return 0;
4070 }
4071
sonypi_misc_open(struct inode * inode,struct file * file)4072 static int sonypi_misc_open(struct inode *inode, struct file *file)
4073 {
4074 /* Flush input queue on first open */
4075 unsigned long flags;
4076
4077 spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4078
4079 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4080 kfifo_reset(&sonypi_compat.fifo);
4081
4082 spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4083
4084 return 0;
4085 }
4086
sonypi_misc_read(struct file * file,char __user * buf,size_t count,loff_t * pos)4087 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4088 size_t count, loff_t *pos)
4089 {
4090 ssize_t ret;
4091 unsigned char c;
4092
4093 if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4094 (file->f_flags & O_NONBLOCK))
4095 return -EAGAIN;
4096
4097 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4098 kfifo_len(&sonypi_compat.fifo) != 0);
4099 if (ret)
4100 return ret;
4101
4102 while (ret < count &&
4103 (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4104 &sonypi_compat.fifo_lock) == sizeof(c))) {
4105 if (put_user(c, buf++))
4106 return -EFAULT;
4107 ret++;
4108 }
4109
4110 if (ret > 0) {
4111 struct inode *inode = file_inode(file);
4112 inode->i_atime = current_time(inode);
4113 }
4114
4115 return ret;
4116 }
4117
sonypi_misc_poll(struct file * file,poll_table * wait)4118 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4119 {
4120 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4121 if (kfifo_len(&sonypi_compat.fifo))
4122 return EPOLLIN | EPOLLRDNORM;
4123 return 0;
4124 }
4125
ec_read16(u8 addr,u16 * value)4126 static int ec_read16(u8 addr, u16 *value)
4127 {
4128 u8 val_lb, val_hb;
4129 if (ec_read(addr, &val_lb))
4130 return -1;
4131 if (ec_read(addr + 1, &val_hb))
4132 return -1;
4133 *value = val_lb | (val_hb << 8);
4134 return 0;
4135 }
4136
sonypi_misc_ioctl(struct file * fp,unsigned int cmd,unsigned long arg)4137 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4138 unsigned long arg)
4139 {
4140 int ret = 0;
4141 void __user *argp = (void __user *)arg;
4142 u8 val8;
4143 u16 val16;
4144 int value;
4145
4146 mutex_lock(&spic_dev.lock);
4147 switch (cmd) {
4148 case SONYPI_IOCGBRT:
4149 if (sony_bl_props.dev == NULL) {
4150 ret = -EIO;
4151 break;
4152 }
4153 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4154 &value)) {
4155 ret = -EIO;
4156 break;
4157 }
4158 val8 = ((value & 0xff) - 1) << 5;
4159 if (copy_to_user(argp, &val8, sizeof(val8)))
4160 ret = -EFAULT;
4161 break;
4162 case SONYPI_IOCSBRT:
4163 if (sony_bl_props.dev == NULL) {
4164 ret = -EIO;
4165 break;
4166 }
4167 if (copy_from_user(&val8, argp, sizeof(val8))) {
4168 ret = -EFAULT;
4169 break;
4170 }
4171 value = (val8 >> 5) + 1;
4172 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4173 NULL)) {
4174 ret = -EIO;
4175 break;
4176 }
4177 /* sync the backlight device status */
4178 sony_bl_props.dev->props.brightness =
4179 sony_backlight_get_brightness(sony_bl_props.dev);
4180 break;
4181 case SONYPI_IOCGBAT1CAP:
4182 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4183 ret = -EIO;
4184 break;
4185 }
4186 if (copy_to_user(argp, &val16, sizeof(val16)))
4187 ret = -EFAULT;
4188 break;
4189 case SONYPI_IOCGBAT1REM:
4190 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4191 ret = -EIO;
4192 break;
4193 }
4194 if (copy_to_user(argp, &val16, sizeof(val16)))
4195 ret = -EFAULT;
4196 break;
4197 case SONYPI_IOCGBAT2CAP:
4198 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4199 ret = -EIO;
4200 break;
4201 }
4202 if (copy_to_user(argp, &val16, sizeof(val16)))
4203 ret = -EFAULT;
4204 break;
4205 case SONYPI_IOCGBAT2REM:
4206 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4207 ret = -EIO;
4208 break;
4209 }
4210 if (copy_to_user(argp, &val16, sizeof(val16)))
4211 ret = -EFAULT;
4212 break;
4213 case SONYPI_IOCGBATFLAGS:
4214 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4215 ret = -EIO;
4216 break;
4217 }
4218 val8 &= 0x07;
4219 if (copy_to_user(argp, &val8, sizeof(val8)))
4220 ret = -EFAULT;
4221 break;
4222 case SONYPI_IOCGBLUE:
4223 val8 = spic_dev.bluetooth_power;
4224 if (copy_to_user(argp, &val8, sizeof(val8)))
4225 ret = -EFAULT;
4226 break;
4227 case SONYPI_IOCSBLUE:
4228 if (copy_from_user(&val8, argp, sizeof(val8))) {
4229 ret = -EFAULT;
4230 break;
4231 }
4232 __sony_pic_set_bluetoothpower(val8);
4233 break;
4234 /* FAN Controls */
4235 case SONYPI_IOCGFAN:
4236 if (sony_pic_get_fanspeed(&val8)) {
4237 ret = -EIO;
4238 break;
4239 }
4240 if (copy_to_user(argp, &val8, sizeof(val8)))
4241 ret = -EFAULT;
4242 break;
4243 case SONYPI_IOCSFAN:
4244 if (copy_from_user(&val8, argp, sizeof(val8))) {
4245 ret = -EFAULT;
4246 break;
4247 }
4248 if (sony_pic_set_fanspeed(val8))
4249 ret = -EIO;
4250 break;
4251 /* GET Temperature (useful under APM) */
4252 case SONYPI_IOCGTEMP:
4253 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4254 ret = -EIO;
4255 break;
4256 }
4257 if (copy_to_user(argp, &val8, sizeof(val8)))
4258 ret = -EFAULT;
4259 break;
4260 default:
4261 ret = -EINVAL;
4262 }
4263 mutex_unlock(&spic_dev.lock);
4264 return ret;
4265 }
4266
4267 static const struct file_operations sonypi_misc_fops = {
4268 .owner = THIS_MODULE,
4269 .read = sonypi_misc_read,
4270 .poll = sonypi_misc_poll,
4271 .open = sonypi_misc_open,
4272 .release = sonypi_misc_release,
4273 .fasync = sonypi_misc_fasync,
4274 .unlocked_ioctl = sonypi_misc_ioctl,
4275 .llseek = noop_llseek,
4276 };
4277
4278 static struct miscdevice sonypi_misc_device = {
4279 .minor = MISC_DYNAMIC_MINOR,
4280 .name = "sonypi",
4281 .fops = &sonypi_misc_fops,
4282 };
4283
sonypi_compat_report_event(u8 event)4284 static void sonypi_compat_report_event(u8 event)
4285 {
4286 kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4287 sizeof(event), &sonypi_compat.fifo_lock);
4288 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4289 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4290 }
4291
sonypi_compat_init(void)4292 static int sonypi_compat_init(void)
4293 {
4294 int error;
4295
4296 spin_lock_init(&sonypi_compat.fifo_lock);
4297 error =
4298 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4299 if (error) {
4300 pr_err("kfifo_alloc failed\n");
4301 return error;
4302 }
4303
4304 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4305
4306 if (minor != -1)
4307 sonypi_misc_device.minor = minor;
4308 error = misc_register(&sonypi_misc_device);
4309 if (error) {
4310 pr_err("misc_register failed\n");
4311 goto err_free_kfifo;
4312 }
4313 if (minor == -1)
4314 pr_info("device allocated minor is %d\n",
4315 sonypi_misc_device.minor);
4316
4317 return 0;
4318
4319 err_free_kfifo:
4320 kfifo_free(&sonypi_compat.fifo);
4321 return error;
4322 }
4323
sonypi_compat_exit(void)4324 static void sonypi_compat_exit(void)
4325 {
4326 misc_deregister(&sonypi_misc_device);
4327 kfifo_free(&sonypi_compat.fifo);
4328 }
4329 #else
sonypi_compat_init(void)4330 static int sonypi_compat_init(void) { return 0; }
sonypi_compat_exit(void)4331 static void sonypi_compat_exit(void) { }
sonypi_compat_report_event(u8 event)4332 static void sonypi_compat_report_event(u8 event) { }
4333 #endif /* CONFIG_SONYPI_COMPAT */
4334
4335 /*
4336 * ACPI callbacks
4337 */
4338 static acpi_status
sony_pic_read_possible_resource(struct acpi_resource * resource,void * context)4339 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4340 {
4341 u32 i;
4342 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4343
4344 switch (resource->type) {
4345 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4346 {
4347 /* start IO enumeration */
4348 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4349 if (!ioport)
4350 return AE_ERROR;
4351
4352 list_add(&ioport->list, &dev->ioports);
4353 return AE_OK;
4354 }
4355
4356 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4357 /* end IO enumeration */
4358 return AE_OK;
4359
4360 case ACPI_RESOURCE_TYPE_IRQ:
4361 {
4362 struct acpi_resource_irq *p = &resource->data.irq;
4363 struct sony_pic_irq *interrupt = NULL;
4364 if (!p || !p->interrupt_count) {
4365 /*
4366 * IRQ descriptors may have no IRQ# bits set,
4367 * particularly those those w/ _STA disabled
4368 */
4369 dprintk("Blank IRQ resource\n");
4370 return AE_OK;
4371 }
4372 for (i = 0; i < p->interrupt_count; i++) {
4373 if (!p->interrupts[i]) {
4374 pr_warn("Invalid IRQ %d\n",
4375 p->interrupts[i]);
4376 continue;
4377 }
4378 interrupt = kzalloc(sizeof(*interrupt),
4379 GFP_KERNEL);
4380 if (!interrupt)
4381 return AE_ERROR;
4382
4383 list_add(&interrupt->list, &dev->interrupts);
4384 interrupt->irq.triggering = p->triggering;
4385 interrupt->irq.polarity = p->polarity;
4386 interrupt->irq.shareable = p->shareable;
4387 interrupt->irq.interrupt_count = 1;
4388 interrupt->irq.interrupts[0] = p->interrupts[i];
4389 }
4390 return AE_OK;
4391 }
4392 case ACPI_RESOURCE_TYPE_IO:
4393 {
4394 struct acpi_resource_io *io = &resource->data.io;
4395 struct sony_pic_ioport *ioport =
4396 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4397 if (!io) {
4398 dprintk("Blank IO resource\n");
4399 return AE_OK;
4400 }
4401
4402 if (!ioport->io1.minimum) {
4403 memcpy(&ioport->io1, io, sizeof(*io));
4404 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4405 ioport->io1.address_length);
4406 }
4407 else if (!ioport->io2.minimum) {
4408 memcpy(&ioport->io2, io, sizeof(*io));
4409 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4410 ioport->io2.address_length);
4411 }
4412 else {
4413 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4414 return AE_ERROR;
4415 }
4416 return AE_OK;
4417 }
4418
4419 case ACPI_RESOURCE_TYPE_END_TAG:
4420 return AE_OK;
4421
4422 default:
4423 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4424 resource->type);
4425 return AE_CTRL_TERMINATE;
4426
4427 }
4428 }
4429
sony_pic_possible_resources(struct acpi_device * device)4430 static int sony_pic_possible_resources(struct acpi_device *device)
4431 {
4432 int result = 0;
4433 acpi_status status = AE_OK;
4434
4435 if (!device)
4436 return -EINVAL;
4437
4438 /* get device status */
4439 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4440 dprintk("Evaluating _STA\n");
4441 result = acpi_bus_get_status(device);
4442 if (result) {
4443 pr_warn("Unable to read status\n");
4444 goto end;
4445 }
4446
4447 if (!device->status.enabled)
4448 dprintk("Device disabled\n");
4449 else
4450 dprintk("Device enabled\n");
4451
4452 /*
4453 * Query and parse 'method'
4454 */
4455 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4456 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4457 sony_pic_read_possible_resource, &spic_dev);
4458 if (ACPI_FAILURE(status)) {
4459 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4460 result = -ENODEV;
4461 }
4462 end:
4463 return result;
4464 }
4465
4466 /*
4467 * Disable the spic device by calling its _DIS method
4468 */
sony_pic_disable(struct acpi_device * device)4469 static int sony_pic_disable(struct acpi_device *device)
4470 {
4471 acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4472 NULL);
4473
4474 if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4475 return -ENXIO;
4476
4477 dprintk("Device disabled\n");
4478 return 0;
4479 }
4480
4481
4482 /*
4483 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4484 *
4485 * Call _SRS to set current resources
4486 */
sony_pic_enable(struct acpi_device * device,struct sony_pic_ioport * ioport,struct sony_pic_irq * irq)4487 static int sony_pic_enable(struct acpi_device *device,
4488 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4489 {
4490 acpi_status status;
4491 int result = 0;
4492 /* Type 1 resource layout is:
4493 * IO
4494 * IO
4495 * IRQNoFlags
4496 * End
4497 *
4498 * Type 2 and 3 resource layout is:
4499 * IO
4500 * IRQNoFlags
4501 * End
4502 */
4503 struct {
4504 struct acpi_resource res1;
4505 struct acpi_resource res2;
4506 struct acpi_resource res3;
4507 struct acpi_resource res4;
4508 } *resource;
4509 struct acpi_buffer buffer = { 0, NULL };
4510
4511 if (!ioport || !irq)
4512 return -EINVAL;
4513
4514 /* init acpi_buffer */
4515 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4516 if (!resource)
4517 return -ENOMEM;
4518
4519 buffer.length = sizeof(*resource) + 1;
4520 buffer.pointer = resource;
4521
4522 /* setup Type 1 resources */
4523 if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4524
4525 /* setup io resources */
4526 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4527 resource->res1.length = sizeof(struct acpi_resource);
4528 memcpy(&resource->res1.data.io, &ioport->io1,
4529 sizeof(struct acpi_resource_io));
4530
4531 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4532 resource->res2.length = sizeof(struct acpi_resource);
4533 memcpy(&resource->res2.data.io, &ioport->io2,
4534 sizeof(struct acpi_resource_io));
4535
4536 /* setup irq resource */
4537 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4538 resource->res3.length = sizeof(struct acpi_resource);
4539 memcpy(&resource->res3.data.irq, &irq->irq,
4540 sizeof(struct acpi_resource_irq));
4541 /* we requested a shared irq */
4542 resource->res3.data.irq.shareable = ACPI_SHARED;
4543
4544 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4545 resource->res4.length = sizeof(struct acpi_resource);
4546 }
4547 /* setup Type 2/3 resources */
4548 else {
4549 /* setup io resource */
4550 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4551 resource->res1.length = sizeof(struct acpi_resource);
4552 memcpy(&resource->res1.data.io, &ioport->io1,
4553 sizeof(struct acpi_resource_io));
4554
4555 /* setup irq resource */
4556 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4557 resource->res2.length = sizeof(struct acpi_resource);
4558 memcpy(&resource->res2.data.irq, &irq->irq,
4559 sizeof(struct acpi_resource_irq));
4560 /* we requested a shared irq */
4561 resource->res2.data.irq.shareable = ACPI_SHARED;
4562
4563 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4564 resource->res3.length = sizeof(struct acpi_resource);
4565 }
4566
4567 /* Attempt to set the resource */
4568 dprintk("Evaluating _SRS\n");
4569 status = acpi_set_current_resources(device->handle, &buffer);
4570
4571 /* check for total failure */
4572 if (ACPI_FAILURE(status)) {
4573 pr_err("Error evaluating _SRS\n");
4574 result = -ENODEV;
4575 goto end;
4576 }
4577
4578 /* Necessary device initializations calls (from sonypi) */
4579 sony_pic_call1(0x82);
4580 sony_pic_call2(0x81, 0xff);
4581 sony_pic_call1(compat ? 0x92 : 0x82);
4582
4583 end:
4584 kfree(resource);
4585 return result;
4586 }
4587
4588 /*****************
4589 *
4590 * ISR: some event is available
4591 *
4592 *****************/
sony_pic_irq(int irq,void * dev_id)4593 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4594 {
4595 int i, j;
4596 u8 ev = 0;
4597 u8 data_mask = 0;
4598 u8 device_event = 0;
4599
4600 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4601
4602 ev = inb_p(dev->cur_ioport->io1.minimum);
4603 if (dev->cur_ioport->io2.minimum)
4604 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4605 else
4606 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4607 dev->evport_offset);
4608
4609 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4610 ev, data_mask, dev->cur_ioport->io1.minimum,
4611 dev->evport_offset);
4612
4613 if (ev == 0x00 || ev == 0xff)
4614 return IRQ_HANDLED;
4615
4616 for (i = 0; dev->event_types[i].mask; i++) {
4617
4618 if ((data_mask & dev->event_types[i].data) !=
4619 dev->event_types[i].data)
4620 continue;
4621
4622 if (!(mask & dev->event_types[i].mask))
4623 continue;
4624
4625 for (j = 0; dev->event_types[i].events[j].event; j++) {
4626 if (ev == dev->event_types[i].events[j].data) {
4627 device_event =
4628 dev->event_types[i].events[j].event;
4629 /* some events may require ignoring */
4630 if (!device_event)
4631 return IRQ_HANDLED;
4632 goto found;
4633 }
4634 }
4635 }
4636 /* Still not able to decode the event try to pass
4637 * it over to the minidriver
4638 */
4639 if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4640 return IRQ_HANDLED;
4641
4642 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4643 ev, data_mask, dev->cur_ioport->io1.minimum,
4644 dev->evport_offset);
4645 return IRQ_HANDLED;
4646
4647 found:
4648 sony_laptop_report_input_event(device_event);
4649 sonypi_compat_report_event(device_event);
4650 return IRQ_HANDLED;
4651 }
4652
4653 /*****************
4654 *
4655 * ACPI driver
4656 *
4657 *****************/
sony_pic_remove(struct acpi_device * device)4658 static int sony_pic_remove(struct acpi_device *device)
4659 {
4660 struct sony_pic_ioport *io, *tmp_io;
4661 struct sony_pic_irq *irq, *tmp_irq;
4662
4663 if (sony_pic_disable(device)) {
4664 pr_err("Couldn't disable device\n");
4665 return -ENXIO;
4666 }
4667
4668 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4669 release_region(spic_dev.cur_ioport->io1.minimum,
4670 spic_dev.cur_ioport->io1.address_length);
4671 if (spic_dev.cur_ioport->io2.minimum)
4672 release_region(spic_dev.cur_ioport->io2.minimum,
4673 spic_dev.cur_ioport->io2.address_length);
4674
4675 sonypi_compat_exit();
4676
4677 sony_laptop_remove_input();
4678
4679 /* pf attrs */
4680 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4681 sony_pf_remove();
4682
4683 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4684 list_del(&io->list);
4685 kfree(io);
4686 }
4687 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4688 list_del(&irq->list);
4689 kfree(irq);
4690 }
4691 spic_dev.cur_ioport = NULL;
4692 spic_dev.cur_irq = NULL;
4693
4694 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4695 return 0;
4696 }
4697
sony_pic_add(struct acpi_device * device)4698 static int sony_pic_add(struct acpi_device *device)
4699 {
4700 int result;
4701 struct sony_pic_ioport *io, *tmp_io;
4702 struct sony_pic_irq *irq, *tmp_irq;
4703
4704 spic_dev.acpi_dev = device;
4705 strcpy(acpi_device_class(device), "sony/hotkey");
4706 sony_pic_detect_device_type(&spic_dev);
4707 mutex_init(&spic_dev.lock);
4708
4709 /* read _PRS resources */
4710 result = sony_pic_possible_resources(device);
4711 if (result) {
4712 pr_err("Unable to read possible resources\n");
4713 goto err_free_resources;
4714 }
4715
4716 /* setup input devices and helper fifo */
4717 result = sony_laptop_setup_input(device);
4718 if (result) {
4719 pr_err("Unable to create input devices\n");
4720 goto err_free_resources;
4721 }
4722
4723 result = sonypi_compat_init();
4724 if (result)
4725 goto err_remove_input;
4726
4727 /* request io port */
4728 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4729 if (request_region(io->io1.minimum, io->io1.address_length,
4730 "Sony Programmable I/O Device")) {
4731 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4732 io->io1.minimum, io->io1.maximum,
4733 io->io1.address_length);
4734 /* Type 1 have 2 ioports */
4735 if (io->io2.minimum) {
4736 if (request_region(io->io2.minimum,
4737 io->io2.address_length,
4738 "Sony Programmable I/O Device")) {
4739 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4740 io->io2.minimum, io->io2.maximum,
4741 io->io2.address_length);
4742 spic_dev.cur_ioport = io;
4743 break;
4744 }
4745 else {
4746 dprintk("Unable to get I/O port2: "
4747 "0x%.4x (0x%.4x) + 0x%.2x\n",
4748 io->io2.minimum, io->io2.maximum,
4749 io->io2.address_length);
4750 release_region(io->io1.minimum,
4751 io->io1.address_length);
4752 }
4753 }
4754 else {
4755 spic_dev.cur_ioport = io;
4756 break;
4757 }
4758 }
4759 }
4760 if (!spic_dev.cur_ioport) {
4761 pr_err("Failed to request_region\n");
4762 result = -ENODEV;
4763 goto err_remove_compat;
4764 }
4765
4766 /* request IRQ */
4767 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4768 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4769 0, "sony-laptop", &spic_dev)) {
4770 dprintk("IRQ: %d - triggering: %d - "
4771 "polarity: %d - shr: %d\n",
4772 irq->irq.interrupts[0],
4773 irq->irq.triggering,
4774 irq->irq.polarity,
4775 irq->irq.shareable);
4776 spic_dev.cur_irq = irq;
4777 break;
4778 }
4779 }
4780 if (!spic_dev.cur_irq) {
4781 pr_err("Failed to request_irq\n");
4782 result = -ENODEV;
4783 goto err_release_region;
4784 }
4785
4786 /* set resource status _SRS */
4787 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4788 if (result) {
4789 pr_err("Couldn't enable device\n");
4790 goto err_free_irq;
4791 }
4792
4793 spic_dev.bluetooth_power = -1;
4794 /* create device attributes */
4795 result = sony_pf_add();
4796 if (result)
4797 goto err_disable_device;
4798
4799 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4800 if (result)
4801 goto err_remove_pf;
4802
4803 pr_info("SPIC setup done.\n");
4804 return 0;
4805
4806 err_remove_pf:
4807 sony_pf_remove();
4808
4809 err_disable_device:
4810 sony_pic_disable(device);
4811
4812 err_free_irq:
4813 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4814
4815 err_release_region:
4816 release_region(spic_dev.cur_ioport->io1.minimum,
4817 spic_dev.cur_ioport->io1.address_length);
4818 if (spic_dev.cur_ioport->io2.minimum)
4819 release_region(spic_dev.cur_ioport->io2.minimum,
4820 spic_dev.cur_ioport->io2.address_length);
4821
4822 err_remove_compat:
4823 sonypi_compat_exit();
4824
4825 err_remove_input:
4826 sony_laptop_remove_input();
4827
4828 err_free_resources:
4829 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4830 list_del(&io->list);
4831 kfree(io);
4832 }
4833 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4834 list_del(&irq->list);
4835 kfree(irq);
4836 }
4837 spic_dev.cur_ioport = NULL;
4838 spic_dev.cur_irq = NULL;
4839
4840 return result;
4841 }
4842
4843 #ifdef CONFIG_PM_SLEEP
sony_pic_suspend(struct device * dev)4844 static int sony_pic_suspend(struct device *dev)
4845 {
4846 if (sony_pic_disable(to_acpi_device(dev)))
4847 return -ENXIO;
4848 return 0;
4849 }
4850
sony_pic_resume(struct device * dev)4851 static int sony_pic_resume(struct device *dev)
4852 {
4853 sony_pic_enable(to_acpi_device(dev),
4854 spic_dev.cur_ioport, spic_dev.cur_irq);
4855 return 0;
4856 }
4857 #endif
4858
4859 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4860
4861 static const struct acpi_device_id sony_pic_device_ids[] = {
4862 {SONY_PIC_HID, 0},
4863 {"", 0},
4864 };
4865
4866 static struct acpi_driver sony_pic_driver = {
4867 .name = SONY_PIC_DRIVER_NAME,
4868 .class = SONY_PIC_CLASS,
4869 .ids = sony_pic_device_ids,
4870 .owner = THIS_MODULE,
4871 .ops = {
4872 .add = sony_pic_add,
4873 .remove = sony_pic_remove,
4874 },
4875 .drv.pm = &sony_pic_pm,
4876 };
4877
4878 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4879 {
4880 .ident = "Sony Vaio",
4881 .matches = {
4882 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4883 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4884 },
4885 },
4886 {
4887 .ident = "Sony Vaio",
4888 .matches = {
4889 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4890 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4891 },
4892 },
4893 { }
4894 };
4895
sony_laptop_init(void)4896 static int __init sony_laptop_init(void)
4897 {
4898 int result;
4899
4900 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4901 result = acpi_bus_register_driver(&sony_pic_driver);
4902 if (result) {
4903 pr_err("Unable to register SPIC driver\n");
4904 goto out;
4905 }
4906 spic_drv_registered = 1;
4907 }
4908
4909 result = acpi_bus_register_driver(&sony_nc_driver);
4910 if (result) {
4911 pr_err("Unable to register SNC driver\n");
4912 goto out_unregister_pic;
4913 }
4914
4915 return 0;
4916
4917 out_unregister_pic:
4918 if (spic_drv_registered)
4919 acpi_bus_unregister_driver(&sony_pic_driver);
4920 out:
4921 return result;
4922 }
4923
sony_laptop_exit(void)4924 static void __exit sony_laptop_exit(void)
4925 {
4926 acpi_bus_unregister_driver(&sony_nc_driver);
4927 if (spic_drv_registered)
4928 acpi_bus_unregister_driver(&sony_pic_driver);
4929 }
4930
4931 module_init(sony_laptop_init);
4932 module_exit(sony_laptop_exit);
4933