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
sony_nc_int_call(acpi_handle handle,char * name,int * value,int * result)760 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
761 int *result)
762 {
763 union acpi_object *object = NULL;
764 if (value) {
765 u64 v = *value;
766 object = __call_snc_method(handle, name, &v);
767 } else
768 object = __call_snc_method(handle, name, NULL);
769
770 if (!object)
771 return -EINVAL;
772
773 if (object->type != ACPI_TYPE_INTEGER) {
774 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
775 ACPI_TYPE_INTEGER, object->type);
776 kfree(object);
777 return -EINVAL;
778 }
779
780 if (result)
781 *result = object->integer.value;
782
783 kfree(object);
784 return 0;
785 }
786
787 #define MIN(a, b) (a > b ? b : a)
sony_nc_buffer_call(acpi_handle handle,char * name,u64 * value,void * buffer,size_t buflen)788 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
789 void *buffer, size_t buflen)
790 {
791 int ret = 0;
792 size_t len;
793 union acpi_object *object = __call_snc_method(handle, name, value);
794
795 if (!object)
796 return -EINVAL;
797
798 if (object->type == ACPI_TYPE_BUFFER) {
799 len = MIN(buflen, object->buffer.length);
800 memcpy(buffer, object->buffer.pointer, len);
801
802 } else if (object->type == ACPI_TYPE_INTEGER) {
803 len = MIN(buflen, sizeof(object->integer.value));
804 memcpy(buffer, &object->integer.value, len);
805
806 } else {
807 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
808 ACPI_TYPE_BUFFER, object->type);
809 ret = -EINVAL;
810 }
811
812 kfree(object);
813 return ret;
814 }
815
816 struct sony_nc_handles {
817 u16 cap[0x10];
818 struct device_attribute devattr;
819 };
820
821 static struct sony_nc_handles *handles;
822
sony_nc_handles_show(struct device * dev,struct device_attribute * attr,char * buffer)823 static ssize_t sony_nc_handles_show(struct device *dev,
824 struct device_attribute *attr, char *buffer)
825 {
826 ssize_t len = 0;
827 int i;
828
829 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
830 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
831 handles->cap[i]);
832 }
833 len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
834
835 return len;
836 }
837
sony_nc_handles_setup(struct platform_device * pd)838 static int sony_nc_handles_setup(struct platform_device *pd)
839 {
840 int i, r, result, arg;
841
842 handles = kzalloc(sizeof(*handles), GFP_KERNEL);
843 if (!handles)
844 return -ENOMEM;
845
846 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
847 arg = i + 0x20;
848 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
849 &result);
850 if (!r) {
851 dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
852 result, i);
853 handles->cap[i] = result;
854 }
855 }
856
857 if (debug) {
858 sysfs_attr_init(&handles->devattr.attr);
859 handles->devattr.attr.name = "handles";
860 handles->devattr.attr.mode = S_IRUGO;
861 handles->devattr.show = sony_nc_handles_show;
862
863 /* allow reading capabilities via sysfs */
864 if (device_create_file(&pd->dev, &handles->devattr)) {
865 kfree(handles);
866 handles = NULL;
867 return -1;
868 }
869 }
870
871 return 0;
872 }
873
sony_nc_handles_cleanup(struct platform_device * pd)874 static int sony_nc_handles_cleanup(struct platform_device *pd)
875 {
876 if (handles) {
877 if (debug)
878 device_remove_file(&pd->dev, &handles->devattr);
879 kfree(handles);
880 handles = NULL;
881 }
882 return 0;
883 }
884
sony_find_snc_handle(int handle)885 static int sony_find_snc_handle(int handle)
886 {
887 int i;
888
889 /* not initialized yet, return early */
890 if (!handles || !handle)
891 return -EINVAL;
892
893 for (i = 0; i < 0x10; i++) {
894 if (handles->cap[i] == handle) {
895 dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
896 handle, i);
897 return i;
898 }
899 }
900 dprintk("handle 0x%.4x not found\n", handle);
901 return -EINVAL;
902 }
903
sony_call_snc_handle(int handle,int argument,int * result)904 static int sony_call_snc_handle(int handle, int argument, int *result)
905 {
906 int arg, ret = 0;
907 int offset = sony_find_snc_handle(handle);
908
909 if (offset < 0)
910 return offset;
911
912 arg = offset | argument;
913 ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
914 dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
915 return ret;
916 }
917
918 /*
919 * sony_nc_values input/output validate functions
920 */
921
922 /* brightness_default_validate:
923 *
924 * manipulate input output values to keep consistency with the
925 * backlight framework for which brightness values are 0-based.
926 */
brightness_default_validate(const int direction,const int value)927 static int brightness_default_validate(const int direction, const int value)
928 {
929 switch (direction) {
930 case SNC_VALIDATE_OUT:
931 return value - 1;
932 case SNC_VALIDATE_IN:
933 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
934 return value + 1;
935 }
936 return -EINVAL;
937 }
938
939 /* boolean_validate:
940 *
941 * on input validate boolean values 0/1, on output just pass the
942 * received value.
943 */
boolean_validate(const int direction,const int value)944 static int boolean_validate(const int direction, const int value)
945 {
946 if (direction == SNC_VALIDATE_IN) {
947 if (value != 0 && value != 1)
948 return -EINVAL;
949 }
950 return value;
951 }
952
953 /*
954 * Sysfs show/store common to all sony_nc_values
955 */
sony_nc_sysfs_show(struct device * dev,struct device_attribute * attr,char * buffer)956 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
957 char *buffer)
958 {
959 int value, ret = 0;
960 struct sony_nc_value *item =
961 container_of(attr, struct sony_nc_value, devattr);
962
963 if (!*item->acpiget)
964 return -EIO;
965
966 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
967 &value);
968 if (ret < 0)
969 return -EIO;
970
971 if (item->validate)
972 value = item->validate(SNC_VALIDATE_OUT, value);
973
974 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
975 }
976
sony_nc_sysfs_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)977 static ssize_t sony_nc_sysfs_store(struct device *dev,
978 struct device_attribute *attr,
979 const char *buffer, size_t count)
980 {
981 int value;
982 int ret = 0;
983 struct sony_nc_value *item =
984 container_of(attr, struct sony_nc_value, devattr);
985
986 if (!item->acpiset)
987 return -EIO;
988
989 if (count > 31)
990 return -EINVAL;
991
992 if (kstrtoint(buffer, 10, &value))
993 return -EINVAL;
994
995 if (item->validate)
996 value = item->validate(SNC_VALIDATE_IN, value);
997
998 if (value < 0)
999 return value;
1000
1001 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1002 &value, NULL);
1003 if (ret < 0)
1004 return -EIO;
1005
1006 item->value = value;
1007 item->valid = 1;
1008 return count;
1009 }
1010
1011
1012 /*
1013 * Backlight device
1014 */
1015 struct sony_backlight_props {
1016 struct backlight_device *dev;
1017 int handle;
1018 int cmd_base;
1019 u8 offset;
1020 u8 maxlvl;
1021 };
1022 static struct sony_backlight_props sony_bl_props;
1023
sony_backlight_update_status(struct backlight_device * bd)1024 static int sony_backlight_update_status(struct backlight_device *bd)
1025 {
1026 int arg = bd->props.brightness + 1;
1027 return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1028 }
1029
sony_backlight_get_brightness(struct backlight_device * bd)1030 static int sony_backlight_get_brightness(struct backlight_device *bd)
1031 {
1032 int value;
1033
1034 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1035 return 0;
1036 /* brightness levels are 1-based, while backlight ones are 0-based */
1037 return value - 1;
1038 }
1039
sony_nc_get_brightness_ng(struct backlight_device * bd)1040 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1041 {
1042 int result;
1043 struct sony_backlight_props *sdev =
1044 (struct sony_backlight_props *)bl_get_data(bd);
1045
1046 sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1047
1048 return (result & 0xff) - sdev->offset;
1049 }
1050
sony_nc_update_status_ng(struct backlight_device * bd)1051 static int sony_nc_update_status_ng(struct backlight_device *bd)
1052 {
1053 int value, result;
1054 struct sony_backlight_props *sdev =
1055 (struct sony_backlight_props *)bl_get_data(bd);
1056
1057 value = bd->props.brightness + sdev->offset;
1058 if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1059 &result))
1060 return -EIO;
1061
1062 return value;
1063 }
1064
1065 static const struct backlight_ops sony_backlight_ops = {
1066 .options = BL_CORE_SUSPENDRESUME,
1067 .update_status = sony_backlight_update_status,
1068 .get_brightness = sony_backlight_get_brightness,
1069 };
1070 static const struct backlight_ops sony_backlight_ng_ops = {
1071 .options = BL_CORE_SUSPENDRESUME,
1072 .update_status = sony_nc_update_status_ng,
1073 .get_brightness = sony_nc_get_brightness_ng,
1074 };
1075
1076 /*
1077 * New SNC-only Vaios event mapping to driver known keys
1078 */
1079 struct sony_nc_event {
1080 u8 data;
1081 u8 event;
1082 };
1083
1084 static struct sony_nc_event sony_100_events[] = {
1085 { 0x90, SONYPI_EVENT_PKEY_P1 },
1086 { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1087 { 0x91, SONYPI_EVENT_PKEY_P2 },
1088 { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1089 { 0x81, SONYPI_EVENT_FNKEY_F1 },
1090 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1091 { 0x82, SONYPI_EVENT_FNKEY_F2 },
1092 { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1093 { 0x83, SONYPI_EVENT_FNKEY_F3 },
1094 { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1095 { 0x84, SONYPI_EVENT_FNKEY_F4 },
1096 { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1097 { 0x85, SONYPI_EVENT_FNKEY_F5 },
1098 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1099 { 0x86, SONYPI_EVENT_FNKEY_F6 },
1100 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1101 { 0x87, SONYPI_EVENT_FNKEY_F7 },
1102 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1103 { 0x88, SONYPI_EVENT_FNKEY_F8 },
1104 { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1105 { 0x89, SONYPI_EVENT_FNKEY_F9 },
1106 { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1107 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1108 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1109 { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1110 { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1111 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1112 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1113 { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1114 { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1115 { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1116 { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117 { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1118 { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119 { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1120 { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1121 { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1122 { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1123 { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1124 { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1125 { 0xa8, SONYPI_EVENT_FNKEY_1 },
1126 { 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1127 { 0, 0 },
1128 };
1129
1130 static struct sony_nc_event sony_127_events[] = {
1131 { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1132 { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133 { 0x82, SONYPI_EVENT_PKEY_P1 },
1134 { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135 { 0x83, SONYPI_EVENT_PKEY_P2 },
1136 { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137 { 0x84, SONYPI_EVENT_PKEY_P3 },
1138 { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1139 { 0x85, SONYPI_EVENT_PKEY_P4 },
1140 { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1141 { 0x86, SONYPI_EVENT_PKEY_P5 },
1142 { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1143 { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1144 { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1145 { 0, 0 },
1146 };
1147
sony_nc_hotkeys_decode(u32 event,unsigned int handle)1148 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1149 {
1150 int ret = -EINVAL;
1151 unsigned int result = 0;
1152 struct sony_nc_event *key_event;
1153
1154 if (sony_call_snc_handle(handle, 0x200, &result)) {
1155 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1156 event);
1157 return -EINVAL;
1158 }
1159
1160 result &= 0xFF;
1161
1162 if (handle == 0x0100)
1163 key_event = sony_100_events;
1164 else
1165 key_event = sony_127_events;
1166
1167 for (; key_event->data; key_event++) {
1168 if (key_event->data == result) {
1169 ret = key_event->event;
1170 break;
1171 }
1172 }
1173
1174 if (!key_event->data)
1175 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1176 event, result, handle);
1177
1178 return ret;
1179 }
1180
1181 /*
1182 * ACPI callbacks
1183 */
1184 enum event_types {
1185 HOTKEY = 1,
1186 KILLSWITCH,
1187 GFX_SWITCH
1188 };
sony_nc_notify(struct acpi_device * device,u32 event)1189 static void sony_nc_notify(struct acpi_device *device, u32 event)
1190 {
1191 u32 real_ev = event;
1192 u8 ev_type = 0;
1193 int ret;
1194
1195 dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1196
1197 if (event >= 0x90) {
1198 unsigned int result = 0;
1199 unsigned int arg = 0;
1200 unsigned int handle = 0;
1201 unsigned int offset = event - 0x90;
1202
1203 if (offset >= ARRAY_SIZE(handles->cap)) {
1204 pr_err("Event 0x%x outside of capabilities list\n",
1205 event);
1206 return;
1207 }
1208 handle = handles->cap[offset];
1209
1210 /* list of handles known for generating events */
1211 switch (handle) {
1212 /* hotkey event */
1213 case 0x0100:
1214 case 0x0127:
1215 ev_type = HOTKEY;
1216 ret = sony_nc_hotkeys_decode(event, handle);
1217
1218 if (ret > 0) {
1219 sony_laptop_report_input_event(ret);
1220 real_ev = ret;
1221 }
1222
1223 break;
1224
1225 /* wlan switch */
1226 case 0x0124:
1227 case 0x0135:
1228 /* events on this handle are reported when the
1229 * switch changes position or for battery
1230 * events. We'll notify both of them but only
1231 * update the rfkill device status when the
1232 * switch is moved.
1233 */
1234 ev_type = KILLSWITCH;
1235 sony_call_snc_handle(handle, 0x0100, &result);
1236 real_ev = result & 0x03;
1237
1238 /* hw switch event */
1239 if (real_ev == 1)
1240 sony_nc_rfkill_update();
1241
1242 break;
1243
1244 case 0x0128:
1245 case 0x0146:
1246 /* Hybrid GFX switching */
1247 sony_call_snc_handle(handle, 0x0000, &result);
1248 dprintk("GFX switch event received (reason: %s)\n",
1249 (result == 0x1) ? "switch change" :
1250 (result == 0x2) ? "output switch" :
1251 (result == 0x3) ? "output switch" :
1252 "");
1253
1254 ev_type = GFX_SWITCH;
1255 real_ev = __sony_nc_gfx_switch_status_get();
1256 break;
1257
1258 case 0x015B:
1259 /* Hybrid GFX switching SVS151290S */
1260 ev_type = GFX_SWITCH;
1261 real_ev = __sony_nc_gfx_switch_status_get();
1262 break;
1263 default:
1264 dprintk("Unknown event 0x%x for handle 0x%x\n",
1265 event, handle);
1266 break;
1267 }
1268
1269 /* clear the event (and the event reason when present) */
1270 arg = 1 << offset;
1271 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1272
1273 } else {
1274 /* old style event */
1275 ev_type = HOTKEY;
1276 sony_laptop_report_input_event(real_ev);
1277 }
1278 acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1279 dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1280 }
1281
sony_walk_callback(acpi_handle handle,u32 level,void * context,void ** return_value)1282 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1283 void *context, void **return_value)
1284 {
1285 struct acpi_device_info *info;
1286
1287 if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1288 pr_warn("method: name: %4.4s, args %X\n",
1289 (char *)&info->name, info->param_count);
1290
1291 kfree(info);
1292 }
1293
1294 return AE_OK;
1295 }
1296
1297 /*
1298 * ACPI device
1299 */
sony_nc_function_setup(struct acpi_device * device,struct platform_device * pf_device)1300 static void sony_nc_function_setup(struct acpi_device *device,
1301 struct platform_device *pf_device)
1302 {
1303 unsigned int i, result, bitmask, arg;
1304
1305 if (!handles)
1306 return;
1307
1308 /* setup found handles here */
1309 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1310 unsigned int handle = handles->cap[i];
1311
1312 if (!handle)
1313 continue;
1314
1315 dprintk("setting up handle 0x%.4x\n", handle);
1316
1317 switch (handle) {
1318 case 0x0100:
1319 case 0x0101:
1320 case 0x0127:
1321 /* setup hotkeys */
1322 sony_call_snc_handle(handle, 0, &result);
1323 break;
1324 case 0x0102:
1325 /* setup hotkeys */
1326 sony_call_snc_handle(handle, 0x100, &result);
1327 break;
1328 case 0x0105:
1329 case 0x0148:
1330 /* touchpad enable/disable */
1331 result = sony_nc_touchpad_setup(pf_device, handle);
1332 if (result)
1333 pr_err("couldn't set up touchpad control function (%d)\n",
1334 result);
1335 break;
1336 case 0x0115:
1337 case 0x0136:
1338 case 0x013f:
1339 result = sony_nc_battery_care_setup(pf_device, handle);
1340 if (result)
1341 pr_err("couldn't set up battery care function (%d)\n",
1342 result);
1343 break;
1344 case 0x0119:
1345 case 0x015D:
1346 result = sony_nc_lid_resume_setup(pf_device, handle);
1347 if (result)
1348 pr_err("couldn't set up lid resume function (%d)\n",
1349 result);
1350 break;
1351 case 0x0122:
1352 result = sony_nc_thermal_setup(pf_device);
1353 if (result)
1354 pr_err("couldn't set up thermal profile function (%d)\n",
1355 result);
1356 break;
1357 case 0x0128:
1358 case 0x0146:
1359 case 0x015B:
1360 result = sony_nc_gfx_switch_setup(pf_device, handle);
1361 if (result)
1362 pr_err("couldn't set up GFX Switch status (%d)\n",
1363 result);
1364 break;
1365 case 0x0131:
1366 result = sony_nc_highspeed_charging_setup(pf_device);
1367 if (result)
1368 pr_err("couldn't set up high speed charging function (%d)\n",
1369 result);
1370 break;
1371 case 0x0124:
1372 case 0x0135:
1373 result = sony_nc_rfkill_setup(device, handle);
1374 if (result)
1375 pr_err("couldn't set up rfkill support (%d)\n",
1376 result);
1377 break;
1378 case 0x0137:
1379 case 0x0143:
1380 case 0x014b:
1381 case 0x014c:
1382 case 0x0153:
1383 case 0x0163:
1384 result = sony_nc_kbd_backlight_setup(pf_device, handle);
1385 if (result)
1386 pr_err("couldn't set up keyboard backlight function (%d)\n",
1387 result);
1388 break;
1389 case 0x0121:
1390 result = sony_nc_lowbatt_setup(pf_device);
1391 if (result)
1392 pr_err("couldn't set up low battery function (%d)\n",
1393 result);
1394 break;
1395 case 0x0149:
1396 result = sony_nc_fanspeed_setup(pf_device);
1397 if (result)
1398 pr_err("couldn't set up fan speed function (%d)\n",
1399 result);
1400 break;
1401 case 0x0155:
1402 result = sony_nc_usb_charge_setup(pf_device);
1403 if (result)
1404 pr_err("couldn't set up USB charge support (%d)\n",
1405 result);
1406 break;
1407 case 0x011D:
1408 result = sony_nc_panelid_setup(pf_device);
1409 if (result)
1410 pr_err("couldn't set up panel ID function (%d)\n",
1411 result);
1412 break;
1413 case 0x0168:
1414 result = sony_nc_smart_conn_setup(pf_device);
1415 if (result)
1416 pr_err("couldn't set up smart connect support (%d)\n",
1417 result);
1418 break;
1419 default:
1420 continue;
1421 }
1422 }
1423
1424 /* Enable all events */
1425 arg = 0x10;
1426 if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1427 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1428 &result);
1429 }
1430
sony_nc_function_cleanup(struct platform_device * pd)1431 static void sony_nc_function_cleanup(struct platform_device *pd)
1432 {
1433 unsigned int i, result, bitmask, handle;
1434
1435 if (!handles)
1436 return;
1437
1438 /* get enabled events and disable them */
1439 sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1440 sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1441
1442 /* cleanup handles here */
1443 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1444
1445 handle = handles->cap[i];
1446
1447 if (!handle)
1448 continue;
1449
1450 switch (handle) {
1451 case 0x0105:
1452 case 0x0148:
1453 sony_nc_touchpad_cleanup(pd);
1454 break;
1455 case 0x0115:
1456 case 0x0136:
1457 case 0x013f:
1458 sony_nc_battery_care_cleanup(pd);
1459 break;
1460 case 0x0119:
1461 case 0x015D:
1462 sony_nc_lid_resume_cleanup(pd);
1463 break;
1464 case 0x0122:
1465 sony_nc_thermal_cleanup(pd);
1466 break;
1467 case 0x0128:
1468 case 0x0146:
1469 case 0x015B:
1470 sony_nc_gfx_switch_cleanup(pd);
1471 break;
1472 case 0x0131:
1473 sony_nc_highspeed_charging_cleanup(pd);
1474 break;
1475 case 0x0124:
1476 case 0x0135:
1477 sony_nc_rfkill_cleanup();
1478 break;
1479 case 0x0137:
1480 case 0x0143:
1481 case 0x014b:
1482 case 0x014c:
1483 case 0x0153:
1484 case 0x0163:
1485 sony_nc_kbd_backlight_cleanup(pd, handle);
1486 break;
1487 case 0x0121:
1488 sony_nc_lowbatt_cleanup(pd);
1489 break;
1490 case 0x0149:
1491 sony_nc_fanspeed_cleanup(pd);
1492 break;
1493 case 0x0155:
1494 sony_nc_usb_charge_cleanup(pd);
1495 break;
1496 case 0x011D:
1497 sony_nc_panelid_cleanup(pd);
1498 break;
1499 case 0x0168:
1500 sony_nc_smart_conn_cleanup(pd);
1501 break;
1502 default:
1503 continue;
1504 }
1505 }
1506
1507 /* finally cleanup the handles list */
1508 sony_nc_handles_cleanup(pd);
1509 }
1510
1511 #ifdef CONFIG_PM_SLEEP
sony_nc_function_resume(void)1512 static void sony_nc_function_resume(void)
1513 {
1514 unsigned int i, result, bitmask, arg;
1515
1516 dprintk("Resuming SNC device\n");
1517
1518 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1519 unsigned int handle = handles->cap[i];
1520
1521 if (!handle)
1522 continue;
1523
1524 switch (handle) {
1525 case 0x0100:
1526 case 0x0101:
1527 case 0x0127:
1528 /* re-enable hotkeys */
1529 sony_call_snc_handle(handle, 0, &result);
1530 break;
1531 case 0x0102:
1532 /* re-enable hotkeys */
1533 sony_call_snc_handle(handle, 0x100, &result);
1534 break;
1535 case 0x0122:
1536 sony_nc_thermal_resume();
1537 break;
1538 case 0x0124:
1539 case 0x0135:
1540 sony_nc_rfkill_update();
1541 break;
1542 default:
1543 continue;
1544 }
1545 }
1546
1547 /* Enable all events */
1548 arg = 0x10;
1549 if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1550 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1551 &result);
1552 }
1553
sony_nc_resume(struct device * dev)1554 static int sony_nc_resume(struct device *dev)
1555 {
1556 struct sony_nc_value *item;
1557
1558 for (item = sony_nc_values; item->name; item++) {
1559 int ret;
1560
1561 if (!item->valid)
1562 continue;
1563 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1564 &item->value, NULL);
1565 if (ret < 0) {
1566 pr_err("%s: %d\n", __func__, ret);
1567 break;
1568 }
1569 }
1570
1571 if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1572 int arg = 1;
1573 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1574 dprintk("ECON Method failed\n");
1575 }
1576
1577 if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1578 sony_nc_function_resume();
1579
1580 return 0;
1581 }
1582 #endif
1583
1584 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1585
sony_nc_rfkill_cleanup(void)1586 static void sony_nc_rfkill_cleanup(void)
1587 {
1588 int i;
1589
1590 for (i = 0; i < N_SONY_RFKILL; i++) {
1591 if (sony_rfkill_devices[i]) {
1592 rfkill_unregister(sony_rfkill_devices[i]);
1593 rfkill_destroy(sony_rfkill_devices[i]);
1594 }
1595 }
1596 }
1597
sony_nc_rfkill_set(void * data,bool blocked)1598 static int sony_nc_rfkill_set(void *data, bool blocked)
1599 {
1600 int result;
1601 int argument = sony_rfkill_address[(long) data] + 0x100;
1602
1603 if (!blocked)
1604 argument |= 0x070000;
1605
1606 return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1607 }
1608
1609 static const struct rfkill_ops sony_rfkill_ops = {
1610 .set_block = sony_nc_rfkill_set,
1611 };
1612
sony_nc_setup_rfkill(struct acpi_device * device,enum sony_nc_rfkill nc_type)1613 static int sony_nc_setup_rfkill(struct acpi_device *device,
1614 enum sony_nc_rfkill nc_type)
1615 {
1616 int err;
1617 struct rfkill *rfk;
1618 enum rfkill_type type;
1619 const char *name;
1620 int result;
1621 bool hwblock, swblock;
1622
1623 switch (nc_type) {
1624 case SONY_WIFI:
1625 type = RFKILL_TYPE_WLAN;
1626 name = "sony-wifi";
1627 break;
1628 case SONY_BLUETOOTH:
1629 type = RFKILL_TYPE_BLUETOOTH;
1630 name = "sony-bluetooth";
1631 break;
1632 case SONY_WWAN:
1633 type = RFKILL_TYPE_WWAN;
1634 name = "sony-wwan";
1635 break;
1636 case SONY_WIMAX:
1637 type = RFKILL_TYPE_WIMAX;
1638 name = "sony-wimax";
1639 break;
1640 default:
1641 return -EINVAL;
1642 }
1643
1644 rfk = rfkill_alloc(name, &device->dev, type,
1645 &sony_rfkill_ops, (void *)nc_type);
1646 if (!rfk)
1647 return -ENOMEM;
1648
1649 err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1650 if (err < 0) {
1651 rfkill_destroy(rfk);
1652 return err;
1653 }
1654 hwblock = !(result & 0x1);
1655
1656 err = sony_call_snc_handle(sony_rfkill_handle,
1657 sony_rfkill_address[nc_type],
1658 &result);
1659 if (err < 0) {
1660 rfkill_destroy(rfk);
1661 return err;
1662 }
1663 swblock = !(result & 0x2);
1664
1665 rfkill_init_sw_state(rfk, swblock);
1666 rfkill_set_hw_state(rfk, hwblock);
1667
1668 err = rfkill_register(rfk);
1669 if (err) {
1670 rfkill_destroy(rfk);
1671 return err;
1672 }
1673 sony_rfkill_devices[nc_type] = rfk;
1674 return err;
1675 }
1676
sony_nc_rfkill_update(void)1677 static void sony_nc_rfkill_update(void)
1678 {
1679 enum sony_nc_rfkill i;
1680 int result;
1681 bool hwblock;
1682
1683 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1684 hwblock = !(result & 0x1);
1685
1686 for (i = 0; i < N_SONY_RFKILL; i++) {
1687 int argument = sony_rfkill_address[i];
1688
1689 if (!sony_rfkill_devices[i])
1690 continue;
1691
1692 if (hwblock) {
1693 if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1694 /* we already know we're blocked */
1695 }
1696 continue;
1697 }
1698
1699 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1700 rfkill_set_states(sony_rfkill_devices[i],
1701 !(result & 0x2), false);
1702 }
1703 }
1704
sony_nc_rfkill_setup(struct acpi_device * device,unsigned int handle)1705 static int sony_nc_rfkill_setup(struct acpi_device *device,
1706 unsigned int handle)
1707 {
1708 u64 offset;
1709 int i;
1710 unsigned char buffer[32] = { 0 };
1711
1712 offset = sony_find_snc_handle(handle);
1713 sony_rfkill_handle = handle;
1714
1715 i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1716 32);
1717 if (i < 0)
1718 return i;
1719
1720 /* The buffer is filled with magic numbers describing the devices
1721 * available, 0xff terminates the enumeration.
1722 * Known codes:
1723 * 0x00 WLAN
1724 * 0x10 BLUETOOTH
1725 * 0x20 WWAN GPRS-EDGE
1726 * 0x21 WWAN HSDPA
1727 * 0x22 WWAN EV-DO
1728 * 0x23 WWAN GPS
1729 * 0x25 Gobi WWAN no GPS
1730 * 0x26 Gobi WWAN + GPS
1731 * 0x28 Gobi WWAN no GPS
1732 * 0x29 Gobi WWAN + GPS
1733 * 0x30 WIMAX
1734 * 0x50 Gobi WWAN no GPS
1735 * 0x51 Gobi WWAN + GPS
1736 * 0x70 no SIM card slot
1737 * 0x71 SIM card slot
1738 */
1739 for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1740
1741 if (buffer[i] == 0xff)
1742 break;
1743
1744 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1745
1746 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1747 sony_nc_setup_rfkill(device, SONY_WIFI);
1748
1749 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1750 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1751
1752 if (((0xf0 & buffer[i]) == 0x20 ||
1753 (0xf0 & buffer[i]) == 0x50) &&
1754 !sony_rfkill_devices[SONY_WWAN])
1755 sony_nc_setup_rfkill(device, SONY_WWAN);
1756
1757 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1758 sony_nc_setup_rfkill(device, SONY_WIMAX);
1759 }
1760 return 0;
1761 }
1762
1763 /* Keyboard backlight feature */
1764 struct kbd_backlight {
1765 unsigned int handle;
1766 unsigned int base;
1767 unsigned int mode;
1768 unsigned int timeout;
1769 unsigned int has_timeout;
1770 struct device_attribute mode_attr;
1771 struct device_attribute timeout_attr;
1772 };
1773
1774 static struct kbd_backlight *kbdbl_ctl;
1775
__sony_nc_kbd_backlight_mode_set(u8 value)1776 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1777 {
1778 int result;
1779
1780 if (value > 2)
1781 return -EINVAL;
1782
1783 if (sony_call_snc_handle(kbdbl_ctl->handle,
1784 (value << 0x10) | (kbdbl_ctl->base), &result))
1785 return -EIO;
1786
1787 /* Try to turn the light on/off immediately */
1788 if (value != 1)
1789 sony_call_snc_handle(kbdbl_ctl->handle,
1790 (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1791 &result);
1792
1793 kbdbl_ctl->mode = value;
1794
1795 return 0;
1796 }
1797
sony_nc_kbd_backlight_mode_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)1798 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1799 struct device_attribute *attr,
1800 const char *buffer, size_t count)
1801 {
1802 int ret = 0;
1803 unsigned long value;
1804
1805 if (count > 31)
1806 return -EINVAL;
1807
1808 if (kstrtoul(buffer, 10, &value))
1809 return -EINVAL;
1810
1811 ret = __sony_nc_kbd_backlight_mode_set(value);
1812 if (ret < 0)
1813 return ret;
1814
1815 return count;
1816 }
1817
sony_nc_kbd_backlight_mode_show(struct device * dev,struct device_attribute * attr,char * buffer)1818 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1819 struct device_attribute *attr, char *buffer)
1820 {
1821 ssize_t count = 0;
1822 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1823 return count;
1824 }
1825
__sony_nc_kbd_backlight_timeout_set(u8 value)1826 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1827 {
1828 int result;
1829
1830 if (value > 3)
1831 return -EINVAL;
1832
1833 if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1834 (kbdbl_ctl->base + 0x200), &result))
1835 return -EIO;
1836
1837 kbdbl_ctl->timeout = value;
1838
1839 return 0;
1840 }
1841
sony_nc_kbd_backlight_timeout_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)1842 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1843 struct device_attribute *attr,
1844 const char *buffer, size_t count)
1845 {
1846 int ret = 0;
1847 unsigned long value;
1848
1849 if (count > 31)
1850 return -EINVAL;
1851
1852 if (kstrtoul(buffer, 10, &value))
1853 return -EINVAL;
1854
1855 ret = __sony_nc_kbd_backlight_timeout_set(value);
1856 if (ret < 0)
1857 return ret;
1858
1859 return count;
1860 }
1861
sony_nc_kbd_backlight_timeout_show(struct device * dev,struct device_attribute * attr,char * buffer)1862 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1863 struct device_attribute *attr, char *buffer)
1864 {
1865 ssize_t count = 0;
1866 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1867 return count;
1868 }
1869
sony_nc_kbd_backlight_setup(struct platform_device * pd,unsigned int handle)1870 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1871 unsigned int handle)
1872 {
1873 int result;
1874 int probe_base = 0;
1875 int ctl_base = 0;
1876 int ret = 0;
1877
1878 if (kbdbl_ctl) {
1879 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1880 handle, kbdbl_ctl->handle);
1881 return -EBUSY;
1882 }
1883
1884 /* verify the kbd backlight presence, some of these handles are not used
1885 * for keyboard backlight only
1886 */
1887 switch (handle) {
1888 case 0x0153:
1889 probe_base = 0x0;
1890 ctl_base = 0x0;
1891 break;
1892 case 0x0137:
1893 probe_base = 0x0B00;
1894 ctl_base = 0x0C00;
1895 break;
1896 default:
1897 probe_base = 0x0100;
1898 ctl_base = 0x4000;
1899 break;
1900 }
1901
1902 ret = sony_call_snc_handle(handle, probe_base, &result);
1903 if (ret)
1904 return ret;
1905
1906 if ((handle == 0x0137 && !(result & 0x02)) ||
1907 !(result & 0x01)) {
1908 dprintk("no backlight keyboard found\n");
1909 return 0;
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 += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2191 snc_thermal_profiles[cnt]);
2192 }
2193 idx += snprintf(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 unsigned int status = sony_nc_thermal_mode_get();
2299
2300 if (status != th_handle->mode)
2301 sony_nc_thermal_mode_set(th_handle->mode);
2302 }
2303 #endif
2304
2305 /* resume on LID open */
2306 #define LID_RESUME_S5 0
2307 #define LID_RESUME_S4 1
2308 #define LID_RESUME_S3 2
2309 #define LID_RESUME_MAX 3
2310 struct snc_lid_resume_control {
2311 struct device_attribute attrs[LID_RESUME_MAX];
2312 unsigned int status;
2313 int handle;
2314 };
2315 static struct snc_lid_resume_control *lid_ctl;
2316
sony_nc_lid_resume_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2317 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2318 struct device_attribute *attr,
2319 const char *buffer, size_t count)
2320 {
2321 unsigned int result;
2322 unsigned long value;
2323 unsigned int pos = LID_RESUME_S5;
2324 if (count > 31)
2325 return -EINVAL;
2326
2327 if (kstrtoul(buffer, 10, &value) || value > 1)
2328 return -EINVAL;
2329
2330 /* the value we have to write to SNC is a bitmask:
2331 * +--------------+
2332 * | S3 | S4 | S5 |
2333 * +--------------+
2334 * 2 1 0
2335 */
2336 while (pos < LID_RESUME_MAX) {
2337 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2338 break;
2339 pos++;
2340 }
2341 if (pos == LID_RESUME_MAX)
2342 return -EINVAL;
2343
2344 if (value)
2345 value = lid_ctl->status | (1 << pos);
2346 else
2347 value = lid_ctl->status & ~(1 << pos);
2348
2349 if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2350 &result))
2351 return -EIO;
2352
2353 lid_ctl->status = value;
2354
2355 return count;
2356 }
2357
sony_nc_lid_resume_show(struct device * dev,struct device_attribute * attr,char * buffer)2358 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2359 struct device_attribute *attr,
2360 char *buffer)
2361 {
2362 unsigned int pos = LID_RESUME_S5;
2363
2364 while (pos < LID_RESUME_MAX) {
2365 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2366 return snprintf(buffer, PAGE_SIZE, "%d\n",
2367 (lid_ctl->status >> pos) & 0x01);
2368 pos++;
2369 }
2370 return -EINVAL;
2371 }
2372
sony_nc_lid_resume_setup(struct platform_device * pd,unsigned int handle)2373 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2374 unsigned int handle)
2375 {
2376 unsigned int result;
2377 int i;
2378
2379 if (sony_call_snc_handle(handle, 0x0000, &result))
2380 return -EIO;
2381
2382 lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2383 if (!lid_ctl)
2384 return -ENOMEM;
2385
2386 lid_ctl->status = result & 0x7;
2387 lid_ctl->handle = handle;
2388
2389 sysfs_attr_init(&lid_ctl->attrs[0].attr);
2390 lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2391 lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2392 lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2393 lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2394
2395 if (handle == 0x0119) {
2396 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2397 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2398 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2399 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2400 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2401
2402 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2403 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2404 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2405 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2406 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2407 }
2408 for (i = 0; i < LID_RESUME_MAX &&
2409 lid_ctl->attrs[i].attr.name; i++) {
2410 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2411 if (result)
2412 goto liderror;
2413 }
2414
2415 return 0;
2416
2417 liderror:
2418 for (i--; i >= 0; i--)
2419 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2420
2421 kfree(lid_ctl);
2422 lid_ctl = NULL;
2423
2424 return result;
2425 }
2426
sony_nc_lid_resume_cleanup(struct platform_device * pd)2427 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2428 {
2429 int i;
2430
2431 if (lid_ctl) {
2432 for (i = 0; i < LID_RESUME_MAX; i++) {
2433 if (!lid_ctl->attrs[i].attr.name)
2434 break;
2435
2436 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2437 }
2438
2439 kfree(lid_ctl);
2440 lid_ctl = NULL;
2441 }
2442 }
2443
2444 /* GFX Switch position */
2445 enum gfx_switch {
2446 SPEED,
2447 STAMINA,
2448 AUTO
2449 };
2450 struct snc_gfx_switch_control {
2451 struct device_attribute attr;
2452 unsigned int handle;
2453 };
2454 static struct snc_gfx_switch_control *gfxs_ctl;
2455
2456 /* returns 0 for speed, 1 for stamina */
__sony_nc_gfx_switch_status_get(void)2457 static int __sony_nc_gfx_switch_status_get(void)
2458 {
2459 unsigned int result;
2460
2461 if (sony_call_snc_handle(gfxs_ctl->handle,
2462 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2463 &result))
2464 return -EIO;
2465
2466 switch (gfxs_ctl->handle) {
2467 case 0x0146:
2468 /* 1: discrete GFX (speed)
2469 * 0: integrated GFX (stamina)
2470 */
2471 return result & 0x1 ? SPEED : STAMINA;
2472 break;
2473 case 0x015B:
2474 /* 0: discrete GFX (speed)
2475 * 1: integrated GFX (stamina)
2476 */
2477 return result & 0x1 ? STAMINA : SPEED;
2478 break;
2479 case 0x0128:
2480 /* it's a more elaborated bitmask, for now:
2481 * 2: integrated GFX (stamina)
2482 * 0: discrete GFX (speed)
2483 */
2484 dprintk("GFX Status: 0x%x\n", result);
2485 return result & 0x80 ? AUTO :
2486 result & 0x02 ? STAMINA : SPEED;
2487 break;
2488 }
2489 return -EINVAL;
2490 }
2491
sony_nc_gfx_switch_status_show(struct device * dev,struct device_attribute * attr,char * buffer)2492 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2493 struct device_attribute *attr,
2494 char *buffer)
2495 {
2496 int pos = __sony_nc_gfx_switch_status_get();
2497
2498 if (pos < 0)
2499 return pos;
2500
2501 return snprintf(buffer, PAGE_SIZE, "%s\n",
2502 pos == SPEED ? "speed" :
2503 pos == STAMINA ? "stamina" :
2504 pos == AUTO ? "auto" : "unknown");
2505 }
2506
sony_nc_gfx_switch_setup(struct platform_device * pd,unsigned int handle)2507 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2508 unsigned int handle)
2509 {
2510 unsigned int result;
2511
2512 gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2513 if (!gfxs_ctl)
2514 return -ENOMEM;
2515
2516 gfxs_ctl->handle = handle;
2517
2518 sysfs_attr_init(&gfxs_ctl->attr.attr);
2519 gfxs_ctl->attr.attr.name = "gfx_switch_status";
2520 gfxs_ctl->attr.attr.mode = S_IRUGO;
2521 gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2522
2523 result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2524 if (result)
2525 goto gfxerror;
2526
2527 return 0;
2528
2529 gfxerror:
2530 kfree(gfxs_ctl);
2531 gfxs_ctl = NULL;
2532
2533 return result;
2534 }
2535
sony_nc_gfx_switch_cleanup(struct platform_device * pd)2536 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2537 {
2538 if (gfxs_ctl) {
2539 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2540
2541 kfree(gfxs_ctl);
2542 gfxs_ctl = NULL;
2543 }
2544 }
2545
2546 /* High speed charging function */
2547 static struct device_attribute *hsc_handle;
2548
sony_nc_highspeed_charging_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2549 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2550 struct device_attribute *attr,
2551 const char *buffer, size_t count)
2552 {
2553 unsigned int result;
2554 unsigned long value;
2555
2556 if (count > 31)
2557 return -EINVAL;
2558
2559 if (kstrtoul(buffer, 10, &value) || value > 1)
2560 return -EINVAL;
2561
2562 if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2563 return -EIO;
2564
2565 return count;
2566 }
2567
sony_nc_highspeed_charging_show(struct device * dev,struct device_attribute * attr,char * buffer)2568 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2569 struct device_attribute *attr, char *buffer)
2570 {
2571 unsigned int result;
2572
2573 if (sony_call_snc_handle(0x0131, 0x0100, &result))
2574 return -EIO;
2575
2576 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2577 }
2578
sony_nc_highspeed_charging_setup(struct platform_device * pd)2579 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2580 {
2581 unsigned int result;
2582
2583 if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2584 /* some models advertise the handle but have no implementation
2585 * for it
2586 */
2587 pr_info("No High Speed Charging capability found\n");
2588 return 0;
2589 }
2590
2591 hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2592 if (!hsc_handle)
2593 return -ENOMEM;
2594
2595 sysfs_attr_init(&hsc_handle->attr);
2596 hsc_handle->attr.name = "battery_highspeed_charging";
2597 hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2598 hsc_handle->show = sony_nc_highspeed_charging_show;
2599 hsc_handle->store = sony_nc_highspeed_charging_store;
2600
2601 result = device_create_file(&pd->dev, hsc_handle);
2602 if (result) {
2603 kfree(hsc_handle);
2604 hsc_handle = NULL;
2605 return result;
2606 }
2607
2608 return 0;
2609 }
2610
sony_nc_highspeed_charging_cleanup(struct platform_device * pd)2611 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2612 {
2613 if (hsc_handle) {
2614 device_remove_file(&pd->dev, hsc_handle);
2615 kfree(hsc_handle);
2616 hsc_handle = NULL;
2617 }
2618 }
2619
2620 /* low battery function */
2621 static struct device_attribute *lowbatt_handle;
2622
sony_nc_lowbatt_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2623 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2624 struct device_attribute *attr,
2625 const char *buffer, size_t count)
2626 {
2627 unsigned int result;
2628 unsigned long value;
2629
2630 if (count > 31)
2631 return -EINVAL;
2632
2633 if (kstrtoul(buffer, 10, &value) || value > 1)
2634 return -EINVAL;
2635
2636 if (sony_call_snc_handle(0x0121, value << 8, &result))
2637 return -EIO;
2638
2639 return count;
2640 }
2641
sony_nc_lowbatt_show(struct device * dev,struct device_attribute * attr,char * buffer)2642 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2643 struct device_attribute *attr, char *buffer)
2644 {
2645 unsigned int result;
2646
2647 if (sony_call_snc_handle(0x0121, 0x0200, &result))
2648 return -EIO;
2649
2650 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2651 }
2652
sony_nc_lowbatt_setup(struct platform_device * pd)2653 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2654 {
2655 unsigned int result;
2656
2657 lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2658 if (!lowbatt_handle)
2659 return -ENOMEM;
2660
2661 sysfs_attr_init(&lowbatt_handle->attr);
2662 lowbatt_handle->attr.name = "lowbatt_hibernate";
2663 lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2664 lowbatt_handle->show = sony_nc_lowbatt_show;
2665 lowbatt_handle->store = sony_nc_lowbatt_store;
2666
2667 result = device_create_file(&pd->dev, lowbatt_handle);
2668 if (result) {
2669 kfree(lowbatt_handle);
2670 lowbatt_handle = NULL;
2671 return result;
2672 }
2673
2674 return 0;
2675 }
2676
sony_nc_lowbatt_cleanup(struct platform_device * pd)2677 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2678 {
2679 if (lowbatt_handle) {
2680 device_remove_file(&pd->dev, lowbatt_handle);
2681 kfree(lowbatt_handle);
2682 lowbatt_handle = NULL;
2683 }
2684 }
2685
2686 /* fan speed function */
2687 static struct device_attribute *fan_handle, *hsf_handle;
2688
sony_nc_hsfan_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2689 static ssize_t sony_nc_hsfan_store(struct device *dev,
2690 struct device_attribute *attr,
2691 const char *buffer, size_t count)
2692 {
2693 unsigned int result;
2694 unsigned long value;
2695
2696 if (count > 31)
2697 return -EINVAL;
2698
2699 if (kstrtoul(buffer, 10, &value) || value > 1)
2700 return -EINVAL;
2701
2702 if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2703 return -EIO;
2704
2705 return count;
2706 }
2707
sony_nc_hsfan_show(struct device * dev,struct device_attribute * attr,char * buffer)2708 static ssize_t sony_nc_hsfan_show(struct device *dev,
2709 struct device_attribute *attr, char *buffer)
2710 {
2711 unsigned int result;
2712
2713 if (sony_call_snc_handle(0x0149, 0x0100, &result))
2714 return -EIO;
2715
2716 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2717 }
2718
sony_nc_fanspeed_show(struct device * dev,struct device_attribute * attr,char * buffer)2719 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2720 struct device_attribute *attr, char *buffer)
2721 {
2722 unsigned int result;
2723
2724 if (sony_call_snc_handle(0x0149, 0x0300, &result))
2725 return -EIO;
2726
2727 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2728 }
2729
sony_nc_fanspeed_setup(struct platform_device * pd)2730 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2731 {
2732 unsigned int result;
2733
2734 fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2735 if (!fan_handle)
2736 return -ENOMEM;
2737
2738 hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2739 if (!hsf_handle) {
2740 result = -ENOMEM;
2741 goto out_hsf_handle_alloc;
2742 }
2743
2744 sysfs_attr_init(&fan_handle->attr);
2745 fan_handle->attr.name = "fanspeed";
2746 fan_handle->attr.mode = S_IRUGO;
2747 fan_handle->show = sony_nc_fanspeed_show;
2748 fan_handle->store = NULL;
2749
2750 sysfs_attr_init(&hsf_handle->attr);
2751 hsf_handle->attr.name = "fan_forced";
2752 hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2753 hsf_handle->show = sony_nc_hsfan_show;
2754 hsf_handle->store = sony_nc_hsfan_store;
2755
2756 result = device_create_file(&pd->dev, fan_handle);
2757 if (result)
2758 goto out_fan_handle;
2759
2760 result = device_create_file(&pd->dev, hsf_handle);
2761 if (result)
2762 goto out_hsf_handle;
2763
2764 return 0;
2765
2766 out_hsf_handle:
2767 device_remove_file(&pd->dev, fan_handle);
2768
2769 out_fan_handle:
2770 kfree(hsf_handle);
2771 hsf_handle = NULL;
2772
2773 out_hsf_handle_alloc:
2774 kfree(fan_handle);
2775 fan_handle = NULL;
2776 return result;
2777 }
2778
sony_nc_fanspeed_cleanup(struct platform_device * pd)2779 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2780 {
2781 if (fan_handle) {
2782 device_remove_file(&pd->dev, fan_handle);
2783 kfree(fan_handle);
2784 fan_handle = NULL;
2785 }
2786 if (hsf_handle) {
2787 device_remove_file(&pd->dev, hsf_handle);
2788 kfree(hsf_handle);
2789 hsf_handle = NULL;
2790 }
2791 }
2792
2793 /* USB charge function */
2794 static struct device_attribute *uc_handle;
2795
sony_nc_usb_charge_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2796 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2797 struct device_attribute *attr,
2798 const char *buffer, size_t count)
2799 {
2800 unsigned int result;
2801 unsigned long value;
2802
2803 if (count > 31)
2804 return -EINVAL;
2805
2806 if (kstrtoul(buffer, 10, &value) || value > 1)
2807 return -EINVAL;
2808
2809 if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2810 return -EIO;
2811
2812 return count;
2813 }
2814
sony_nc_usb_charge_show(struct device * dev,struct device_attribute * attr,char * buffer)2815 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2816 struct device_attribute *attr, char *buffer)
2817 {
2818 unsigned int result;
2819
2820 if (sony_call_snc_handle(0x0155, 0x0000, &result))
2821 return -EIO;
2822
2823 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2824 }
2825
sony_nc_usb_charge_setup(struct platform_device * pd)2826 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2827 {
2828 unsigned int result;
2829
2830 if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2831 /* some models advertise the handle but have no implementation
2832 * for it
2833 */
2834 pr_info("No USB Charge capability found\n");
2835 return 0;
2836 }
2837
2838 uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2839 if (!uc_handle)
2840 return -ENOMEM;
2841
2842 sysfs_attr_init(&uc_handle->attr);
2843 uc_handle->attr.name = "usb_charge";
2844 uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2845 uc_handle->show = sony_nc_usb_charge_show;
2846 uc_handle->store = sony_nc_usb_charge_store;
2847
2848 result = device_create_file(&pd->dev, uc_handle);
2849 if (result) {
2850 kfree(uc_handle);
2851 uc_handle = NULL;
2852 return result;
2853 }
2854
2855 return 0;
2856 }
2857
sony_nc_usb_charge_cleanup(struct platform_device * pd)2858 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2859 {
2860 if (uc_handle) {
2861 device_remove_file(&pd->dev, uc_handle);
2862 kfree(uc_handle);
2863 uc_handle = NULL;
2864 }
2865 }
2866
2867 /* Panel ID function */
2868 static struct device_attribute *panel_handle;
2869
sony_nc_panelid_show(struct device * dev,struct device_attribute * attr,char * buffer)2870 static ssize_t sony_nc_panelid_show(struct device *dev,
2871 struct device_attribute *attr, char *buffer)
2872 {
2873 unsigned int result;
2874
2875 if (sony_call_snc_handle(0x011D, 0x0000, &result))
2876 return -EIO;
2877
2878 return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2879 }
2880
sony_nc_panelid_setup(struct platform_device * pd)2881 static int sony_nc_panelid_setup(struct platform_device *pd)
2882 {
2883 unsigned int result;
2884
2885 panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2886 if (!panel_handle)
2887 return -ENOMEM;
2888
2889 sysfs_attr_init(&panel_handle->attr);
2890 panel_handle->attr.name = "panel_id";
2891 panel_handle->attr.mode = S_IRUGO;
2892 panel_handle->show = sony_nc_panelid_show;
2893 panel_handle->store = NULL;
2894
2895 result = device_create_file(&pd->dev, panel_handle);
2896 if (result) {
2897 kfree(panel_handle);
2898 panel_handle = NULL;
2899 return result;
2900 }
2901
2902 return 0;
2903 }
2904
sony_nc_panelid_cleanup(struct platform_device * pd)2905 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2906 {
2907 if (panel_handle) {
2908 device_remove_file(&pd->dev, panel_handle);
2909 kfree(panel_handle);
2910 panel_handle = NULL;
2911 }
2912 }
2913
2914 /* smart connect function */
2915 static struct device_attribute *sc_handle;
2916
sony_nc_smart_conn_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2917 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2918 struct device_attribute *attr,
2919 const char *buffer, size_t count)
2920 {
2921 unsigned int result;
2922 unsigned long value;
2923
2924 if (count > 31)
2925 return -EINVAL;
2926
2927 if (kstrtoul(buffer, 10, &value) || value > 1)
2928 return -EINVAL;
2929
2930 if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2931 return -EIO;
2932
2933 return count;
2934 }
2935
sony_nc_smart_conn_setup(struct platform_device * pd)2936 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2937 {
2938 unsigned int result;
2939
2940 sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2941 if (!sc_handle)
2942 return -ENOMEM;
2943
2944 sysfs_attr_init(&sc_handle->attr);
2945 sc_handle->attr.name = "smart_connect";
2946 sc_handle->attr.mode = S_IWUSR;
2947 sc_handle->show = NULL;
2948 sc_handle->store = sony_nc_smart_conn_store;
2949
2950 result = device_create_file(&pd->dev, sc_handle);
2951 if (result) {
2952 kfree(sc_handle);
2953 sc_handle = NULL;
2954 return result;
2955 }
2956
2957 return 0;
2958 }
2959
sony_nc_smart_conn_cleanup(struct platform_device * pd)2960 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2961 {
2962 if (sc_handle) {
2963 device_remove_file(&pd->dev, sc_handle);
2964 kfree(sc_handle);
2965 sc_handle = NULL;
2966 }
2967 }
2968
2969 /* Touchpad enable/disable */
2970 struct touchpad_control {
2971 struct device_attribute attr;
2972 int handle;
2973 };
2974 static struct touchpad_control *tp_ctl;
2975
sony_nc_touchpad_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)2976 static ssize_t sony_nc_touchpad_store(struct device *dev,
2977 struct device_attribute *attr, const char *buffer, size_t count)
2978 {
2979 unsigned int result;
2980 unsigned long value;
2981
2982 if (count > 31)
2983 return -EINVAL;
2984
2985 if (kstrtoul(buffer, 10, &value) || value > 1)
2986 return -EINVAL;
2987
2988 /* sysfs: 0 disabled, 1 enabled
2989 * EC: 0 enabled, 1 disabled
2990 */
2991 if (sony_call_snc_handle(tp_ctl->handle,
2992 (!value << 0x10) | 0x100, &result))
2993 return -EIO;
2994
2995 return count;
2996 }
2997
sony_nc_touchpad_show(struct device * dev,struct device_attribute * attr,char * buffer)2998 static ssize_t sony_nc_touchpad_show(struct device *dev,
2999 struct device_attribute *attr, char *buffer)
3000 {
3001 unsigned int result;
3002
3003 if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3004 return -EINVAL;
3005
3006 return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3007 }
3008
sony_nc_touchpad_setup(struct platform_device * pd,unsigned int handle)3009 static int sony_nc_touchpad_setup(struct platform_device *pd,
3010 unsigned int handle)
3011 {
3012 int ret = 0;
3013
3014 tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3015 if (!tp_ctl)
3016 return -ENOMEM;
3017
3018 tp_ctl->handle = handle;
3019
3020 sysfs_attr_init(&tp_ctl->attr.attr);
3021 tp_ctl->attr.attr.name = "touchpad";
3022 tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3023 tp_ctl->attr.show = sony_nc_touchpad_show;
3024 tp_ctl->attr.store = sony_nc_touchpad_store;
3025
3026 ret = device_create_file(&pd->dev, &tp_ctl->attr);
3027 if (ret) {
3028 kfree(tp_ctl);
3029 tp_ctl = NULL;
3030 }
3031
3032 return ret;
3033 }
3034
sony_nc_touchpad_cleanup(struct platform_device * pd)3035 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3036 {
3037 if (tp_ctl) {
3038 device_remove_file(&pd->dev, &tp_ctl->attr);
3039 kfree(tp_ctl);
3040 tp_ctl = NULL;
3041 }
3042 }
3043
sony_nc_backlight_ng_read_limits(int handle,struct sony_backlight_props * props)3044 static void sony_nc_backlight_ng_read_limits(int handle,
3045 struct sony_backlight_props *props)
3046 {
3047 u64 offset;
3048 int i;
3049 int lvl_table_len = 0;
3050 u8 min = 0xff, max = 0x00;
3051 unsigned char buffer[32] = { 0 };
3052
3053 props->handle = handle;
3054 props->offset = 0;
3055 props->maxlvl = 0xff;
3056
3057 offset = sony_find_snc_handle(handle);
3058
3059 /* try to read the boundaries from ACPI tables, if we fail the above
3060 * defaults should be reasonable
3061 */
3062 i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3063 32);
3064 if (i < 0)
3065 return;
3066
3067 switch (handle) {
3068 case 0x012f:
3069 case 0x0137:
3070 lvl_table_len = 9;
3071 break;
3072 case 0x143:
3073 case 0x14b:
3074 case 0x14c:
3075 lvl_table_len = 16;
3076 break;
3077 }
3078
3079 /* the buffer lists brightness levels available, brightness levels are
3080 * from position 0 to 8 in the array, other values are used by ALS
3081 * control.
3082 */
3083 for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3084
3085 dprintk("Brightness level: %d\n", buffer[i]);
3086
3087 if (!buffer[i])
3088 break;
3089
3090 if (buffer[i] > max)
3091 max = buffer[i];
3092 if (buffer[i] < min)
3093 min = buffer[i];
3094 }
3095 props->offset = min;
3096 props->maxlvl = max;
3097 dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3098 props->maxlvl);
3099 }
3100
sony_nc_backlight_setup(void)3101 static void sony_nc_backlight_setup(void)
3102 {
3103 int max_brightness = 0;
3104 const struct backlight_ops *ops = NULL;
3105 struct backlight_properties props;
3106
3107 if (sony_find_snc_handle(0x12f) >= 0) {
3108 ops = &sony_backlight_ng_ops;
3109 sony_bl_props.cmd_base = 0x0100;
3110 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3111 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3112
3113 } else if (sony_find_snc_handle(0x137) >= 0) {
3114 ops = &sony_backlight_ng_ops;
3115 sony_bl_props.cmd_base = 0x0100;
3116 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3117 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3118
3119 } else if (sony_find_snc_handle(0x143) >= 0) {
3120 ops = &sony_backlight_ng_ops;
3121 sony_bl_props.cmd_base = 0x3000;
3122 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3123 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3124
3125 } else if (sony_find_snc_handle(0x14b) >= 0) {
3126 ops = &sony_backlight_ng_ops;
3127 sony_bl_props.cmd_base = 0x3000;
3128 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3129 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3130
3131 } else if (sony_find_snc_handle(0x14c) >= 0) {
3132 ops = &sony_backlight_ng_ops;
3133 sony_bl_props.cmd_base = 0x3000;
3134 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3135 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3136
3137 } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3138 ops = &sony_backlight_ops;
3139 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3140
3141 } else
3142 return;
3143
3144 memset(&props, 0, sizeof(struct backlight_properties));
3145 props.type = BACKLIGHT_PLATFORM;
3146 props.max_brightness = max_brightness;
3147 sony_bl_props.dev = backlight_device_register("sony", NULL,
3148 &sony_bl_props,
3149 ops, &props);
3150
3151 if (IS_ERR(sony_bl_props.dev)) {
3152 pr_warn("unable to register backlight device\n");
3153 sony_bl_props.dev = NULL;
3154 } else
3155 sony_bl_props.dev->props.brightness =
3156 ops->get_brightness(sony_bl_props.dev);
3157 }
3158
sony_nc_backlight_cleanup(void)3159 static void sony_nc_backlight_cleanup(void)
3160 {
3161 backlight_device_unregister(sony_bl_props.dev);
3162 }
3163
sony_nc_add(struct acpi_device * device)3164 static int sony_nc_add(struct acpi_device *device)
3165 {
3166 acpi_status status;
3167 int result = 0;
3168 struct sony_nc_value *item;
3169
3170 sony_nc_acpi_device = device;
3171 strcpy(acpi_device_class(device), "sony/hotkey");
3172
3173 sony_nc_acpi_handle = device->handle;
3174
3175 /* read device status */
3176 result = acpi_bus_get_status(device);
3177 /* bail IFF the above call was successful and the device is not present */
3178 if (!result && !device->status.present) {
3179 dprintk("Device not present\n");
3180 result = -ENODEV;
3181 goto outwalk;
3182 }
3183
3184 result = sony_pf_add();
3185 if (result)
3186 goto outpresent;
3187
3188 if (debug) {
3189 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3190 sony_nc_acpi_handle, 1, sony_walk_callback,
3191 NULL, NULL, NULL);
3192 if (ACPI_FAILURE(status)) {
3193 pr_warn("unable to walk acpi resources\n");
3194 result = -ENODEV;
3195 goto outpresent;
3196 }
3197 }
3198
3199 result = sony_laptop_setup_input(device);
3200 if (result) {
3201 pr_err("Unable to create input devices\n");
3202 goto outplatform;
3203 }
3204
3205 if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3206 int arg = 1;
3207 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3208 dprintk("ECON Method failed\n");
3209 }
3210
3211 if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3212 dprintk("Doing SNC setup\n");
3213 /* retrieve the available handles */
3214 result = sony_nc_handles_setup(sony_pf_device);
3215 if (!result)
3216 sony_nc_function_setup(device, sony_pf_device);
3217 }
3218
3219 if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3220 sony_nc_backlight_setup();
3221
3222 /* create sony_pf sysfs attributes related to the SNC device */
3223 for (item = sony_nc_values; item->name; ++item) {
3224
3225 if (!debug && item->debug)
3226 continue;
3227
3228 /* find the available acpiget as described in the DSDT */
3229 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3230 if (acpi_has_method(sony_nc_acpi_handle,
3231 *item->acpiget)) {
3232 dprintk("Found %s getter: %s\n",
3233 item->name, *item->acpiget);
3234 item->devattr.attr.mode |= S_IRUGO;
3235 break;
3236 }
3237 }
3238
3239 /* find the available acpiset as described in the DSDT */
3240 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3241 if (acpi_has_method(sony_nc_acpi_handle,
3242 *item->acpiset)) {
3243 dprintk("Found %s setter: %s\n",
3244 item->name, *item->acpiset);
3245 item->devattr.attr.mode |= S_IWUSR;
3246 break;
3247 }
3248 }
3249
3250 if (item->devattr.attr.mode != 0) {
3251 result =
3252 device_create_file(&sony_pf_device->dev,
3253 &item->devattr);
3254 if (result)
3255 goto out_sysfs;
3256 }
3257 }
3258
3259 pr_info("SNC setup done.\n");
3260 return 0;
3261
3262 out_sysfs:
3263 for (item = sony_nc_values; item->name; ++item) {
3264 device_remove_file(&sony_pf_device->dev, &item->devattr);
3265 }
3266 sony_nc_backlight_cleanup();
3267 sony_nc_function_cleanup(sony_pf_device);
3268 sony_nc_handles_cleanup(sony_pf_device);
3269
3270 outplatform:
3271 sony_laptop_remove_input();
3272
3273 outpresent:
3274 sony_pf_remove();
3275
3276 outwalk:
3277 sony_nc_rfkill_cleanup();
3278 return result;
3279 }
3280
sony_nc_remove(struct acpi_device * device)3281 static int sony_nc_remove(struct acpi_device *device)
3282 {
3283 struct sony_nc_value *item;
3284
3285 sony_nc_backlight_cleanup();
3286
3287 sony_nc_acpi_device = NULL;
3288
3289 for (item = sony_nc_values; item->name; ++item) {
3290 device_remove_file(&sony_pf_device->dev, &item->devattr);
3291 }
3292
3293 sony_nc_function_cleanup(sony_pf_device);
3294 sony_nc_handles_cleanup(sony_pf_device);
3295 sony_pf_remove();
3296 sony_laptop_remove_input();
3297 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3298
3299 return 0;
3300 }
3301
3302 static const struct acpi_device_id sony_device_ids[] = {
3303 {SONY_NC_HID, 0},
3304 {SONY_PIC_HID, 0},
3305 {"", 0},
3306 };
3307 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3308
3309 static const struct acpi_device_id sony_nc_device_ids[] = {
3310 {SONY_NC_HID, 0},
3311 {"", 0},
3312 };
3313
3314 static struct acpi_driver sony_nc_driver = {
3315 .name = SONY_NC_DRIVER_NAME,
3316 .class = SONY_NC_CLASS,
3317 .ids = sony_nc_device_ids,
3318 .owner = THIS_MODULE,
3319 .ops = {
3320 .add = sony_nc_add,
3321 .remove = sony_nc_remove,
3322 .notify = sony_nc_notify,
3323 },
3324 .drv.pm = &sony_nc_pm,
3325 };
3326
3327 /*********** SPIC (SNY6001) Device ***********/
3328
3329 #define SONYPI_DEVICE_TYPE1 0x00000001
3330 #define SONYPI_DEVICE_TYPE2 0x00000002
3331 #define SONYPI_DEVICE_TYPE3 0x00000004
3332
3333 #define SONYPI_TYPE1_OFFSET 0x04
3334 #define SONYPI_TYPE2_OFFSET 0x12
3335 #define SONYPI_TYPE3_OFFSET 0x12
3336
3337 struct sony_pic_ioport {
3338 struct acpi_resource_io io1;
3339 struct acpi_resource_io io2;
3340 struct list_head list;
3341 };
3342
3343 struct sony_pic_irq {
3344 struct acpi_resource_irq irq;
3345 struct list_head list;
3346 };
3347
3348 struct sonypi_eventtypes {
3349 u8 data;
3350 unsigned long mask;
3351 struct sonypi_event *events;
3352 };
3353
3354 struct sony_pic_dev {
3355 struct acpi_device *acpi_dev;
3356 struct sony_pic_irq *cur_irq;
3357 struct sony_pic_ioport *cur_ioport;
3358 struct list_head interrupts;
3359 struct list_head ioports;
3360 struct mutex lock;
3361 struct sonypi_eventtypes *event_types;
3362 int (*handle_irq)(const u8, const u8);
3363 int model;
3364 u16 evport_offset;
3365 u8 camera_power;
3366 u8 bluetooth_power;
3367 u8 wwan_power;
3368 };
3369
3370 static struct sony_pic_dev spic_dev = {
3371 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
3372 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
3373 };
3374
3375 static int spic_drv_registered;
3376
3377 /* Event masks */
3378 #define SONYPI_JOGGER_MASK 0x00000001
3379 #define SONYPI_CAPTURE_MASK 0x00000002
3380 #define SONYPI_FNKEY_MASK 0x00000004
3381 #define SONYPI_BLUETOOTH_MASK 0x00000008
3382 #define SONYPI_PKEY_MASK 0x00000010
3383 #define SONYPI_BACK_MASK 0x00000020
3384 #define SONYPI_HELP_MASK 0x00000040
3385 #define SONYPI_LID_MASK 0x00000080
3386 #define SONYPI_ZOOM_MASK 0x00000100
3387 #define SONYPI_THUMBPHRASE_MASK 0x00000200
3388 #define SONYPI_MEYE_MASK 0x00000400
3389 #define SONYPI_MEMORYSTICK_MASK 0x00000800
3390 #define SONYPI_BATTERY_MASK 0x00001000
3391 #define SONYPI_WIRELESS_MASK 0x00002000
3392
3393 struct sonypi_event {
3394 u8 data;
3395 u8 event;
3396 };
3397
3398 /* The set of possible button release events */
3399 static struct sonypi_event sonypi_releaseev[] = {
3400 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3401 { 0, 0 }
3402 };
3403
3404 /* The set of possible jogger events */
3405 static struct sonypi_event sonypi_joggerev[] = {
3406 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3407 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3408 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3409 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3410 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3411 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3412 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3413 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3414 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3415 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3416 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3417 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3418 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3419 { 0, 0 }
3420 };
3421
3422 /* The set of possible capture button events */
3423 static struct sonypi_event sonypi_captureev[] = {
3424 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3425 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3426 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3427 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3428 { 0, 0 }
3429 };
3430
3431 /* The set of possible fnkeys events */
3432 static struct sonypi_event sonypi_fnkeyev[] = {
3433 { 0x10, SONYPI_EVENT_FNKEY_ESC },
3434 { 0x11, SONYPI_EVENT_FNKEY_F1 },
3435 { 0x12, SONYPI_EVENT_FNKEY_F2 },
3436 { 0x13, SONYPI_EVENT_FNKEY_F3 },
3437 { 0x14, SONYPI_EVENT_FNKEY_F4 },
3438 { 0x15, SONYPI_EVENT_FNKEY_F5 },
3439 { 0x16, SONYPI_EVENT_FNKEY_F6 },
3440 { 0x17, SONYPI_EVENT_FNKEY_F7 },
3441 { 0x18, SONYPI_EVENT_FNKEY_F8 },
3442 { 0x19, SONYPI_EVENT_FNKEY_F9 },
3443 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3444 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3445 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3446 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3447 { 0x21, SONYPI_EVENT_FNKEY_1 },
3448 { 0x22, SONYPI_EVENT_FNKEY_2 },
3449 { 0x31, SONYPI_EVENT_FNKEY_D },
3450 { 0x32, SONYPI_EVENT_FNKEY_E },
3451 { 0x33, SONYPI_EVENT_FNKEY_F },
3452 { 0x34, SONYPI_EVENT_FNKEY_S },
3453 { 0x35, SONYPI_EVENT_FNKEY_B },
3454 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3455 { 0, 0 }
3456 };
3457
3458 /* The set of possible program key events */
3459 static struct sonypi_event sonypi_pkeyev[] = {
3460 { 0x01, SONYPI_EVENT_PKEY_P1 },
3461 { 0x02, SONYPI_EVENT_PKEY_P2 },
3462 { 0x04, SONYPI_EVENT_PKEY_P3 },
3463 { 0x20, SONYPI_EVENT_PKEY_P1 },
3464 { 0, 0 }
3465 };
3466
3467 /* The set of possible bluetooth events */
3468 static struct sonypi_event sonypi_blueev[] = {
3469 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3470 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3471 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3472 { 0, 0 }
3473 };
3474
3475 /* The set of possible wireless events */
3476 static struct sonypi_event sonypi_wlessev[] = {
3477 { 0x59, SONYPI_EVENT_IGNORE },
3478 { 0x5a, SONYPI_EVENT_IGNORE },
3479 { 0, 0 }
3480 };
3481
3482 /* The set of possible back button events */
3483 static struct sonypi_event sonypi_backev[] = {
3484 { 0x20, SONYPI_EVENT_BACK_PRESSED },
3485 { 0, 0 }
3486 };
3487
3488 /* The set of possible help button events */
3489 static struct sonypi_event sonypi_helpev[] = {
3490 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3491 { 0, 0 }
3492 };
3493
3494
3495 /* The set of possible lid events */
3496 static struct sonypi_event sonypi_lidev[] = {
3497 { 0x51, SONYPI_EVENT_LID_CLOSED },
3498 { 0x50, SONYPI_EVENT_LID_OPENED },
3499 { 0, 0 }
3500 };
3501
3502 /* The set of possible zoom events */
3503 static struct sonypi_event sonypi_zoomev[] = {
3504 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3505 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3506 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3507 { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3508 { 0, 0 }
3509 };
3510
3511 /* The set of possible thumbphrase events */
3512 static struct sonypi_event sonypi_thumbphraseev[] = {
3513 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3514 { 0, 0 }
3515 };
3516
3517 /* The set of possible motioneye camera events */
3518 static struct sonypi_event sonypi_meyeev[] = {
3519 { 0x00, SONYPI_EVENT_MEYE_FACE },
3520 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3521 { 0, 0 }
3522 };
3523
3524 /* The set of possible memorystick events */
3525 static struct sonypi_event sonypi_memorystickev[] = {
3526 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3527 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3528 { 0, 0 }
3529 };
3530
3531 /* The set of possible battery events */
3532 static struct sonypi_event sonypi_batteryev[] = {
3533 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3534 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3535 { 0, 0 }
3536 };
3537
3538 /* The set of possible volume events */
3539 static struct sonypi_event sonypi_volumeev[] = {
3540 { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3541 { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3542 { 0, 0 }
3543 };
3544
3545 /* The set of possible brightness events */
3546 static struct sonypi_event sonypi_brightnessev[] = {
3547 { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3548 { 0, 0 }
3549 };
3550
3551 static struct sonypi_eventtypes type1_events[] = {
3552 { 0, 0xffffffff, sonypi_releaseev },
3553 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3554 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3555 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3556 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3557 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3558 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3559 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3560 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3561 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3562 { 0 },
3563 };
3564 static struct sonypi_eventtypes type2_events[] = {
3565 { 0, 0xffffffff, sonypi_releaseev },
3566 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3567 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3568 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3569 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3570 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3571 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3572 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3573 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3574 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3575 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3576 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3577 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3578 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3579 { 0 },
3580 };
3581 static struct sonypi_eventtypes type3_events[] = {
3582 { 0, 0xffffffff, sonypi_releaseev },
3583 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3584 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3585 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3586 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3587 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3588 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3589 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3590 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3591 { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3592 { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3593 { 0 },
3594 };
3595
3596 /* low level spic calls */
3597 #define ITERATIONS_LONG 10000
3598 #define ITERATIONS_SHORT 10
3599 #define wait_on_command(command, iterations) { \
3600 unsigned int n = iterations; \
3601 while (--n && (command)) \
3602 udelay(1); \
3603 if (!n) \
3604 dprintk("command failed at %s : %s (line %d)\n", \
3605 __FILE__, __func__, __LINE__); \
3606 }
3607
sony_pic_call1(u8 dev)3608 static u8 sony_pic_call1(u8 dev)
3609 {
3610 u8 v1, v2;
3611
3612 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3613 ITERATIONS_LONG);
3614 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3615 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3616 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3617 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3618 return v2;
3619 }
3620
sony_pic_call2(u8 dev,u8 fn)3621 static u8 sony_pic_call2(u8 dev, u8 fn)
3622 {
3623 u8 v1;
3624
3625 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3626 ITERATIONS_LONG);
3627 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3628 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3629 ITERATIONS_LONG);
3630 outb(fn, spic_dev.cur_ioport->io1.minimum);
3631 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3632 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3633 return v1;
3634 }
3635
sony_pic_call3(u8 dev,u8 fn,u8 v)3636 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3637 {
3638 u8 v1;
3639
3640 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3641 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3642 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3643 outb(fn, spic_dev.cur_ioport->io1.minimum);
3644 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3645 outb(v, spic_dev.cur_ioport->io1.minimum);
3646 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3647 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3648 dev, fn, v, v1);
3649 return v1;
3650 }
3651
3652 /*
3653 * minidrivers for SPIC models
3654 */
type3_handle_irq(const u8 data_mask,const u8 ev)3655 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3656 {
3657 /*
3658 * 0x31 could mean we have to take some extra action and wait for
3659 * the next irq for some Type3 models, it will generate a new
3660 * irq and we can read new data from the device:
3661 * - 0x5c and 0x5f requires 0xA0
3662 * - 0x61 requires 0xB3
3663 */
3664 if (data_mask == 0x31) {
3665 if (ev == 0x5c || ev == 0x5f)
3666 sony_pic_call1(0xA0);
3667 else if (ev == 0x61)
3668 sony_pic_call1(0xB3);
3669 return 0;
3670 }
3671 return 1;
3672 }
3673
sony_pic_detect_device_type(struct sony_pic_dev * dev)3674 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3675 {
3676 struct pci_dev *pcidev;
3677
3678 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3679 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3680 if (pcidev) {
3681 dev->model = SONYPI_DEVICE_TYPE1;
3682 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3683 dev->event_types = type1_events;
3684 goto out;
3685 }
3686
3687 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3688 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3689 if (pcidev) {
3690 dev->model = SONYPI_DEVICE_TYPE2;
3691 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3692 dev->event_types = type2_events;
3693 goto out;
3694 }
3695
3696 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3697 PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3698 if (pcidev) {
3699 dev->model = SONYPI_DEVICE_TYPE3;
3700 dev->handle_irq = type3_handle_irq;
3701 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3702 dev->event_types = type3_events;
3703 goto out;
3704 }
3705
3706 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3707 PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3708 if (pcidev) {
3709 dev->model = SONYPI_DEVICE_TYPE3;
3710 dev->handle_irq = type3_handle_irq;
3711 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3712 dev->event_types = type3_events;
3713 goto out;
3714 }
3715
3716 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3717 PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3718 if (pcidev) {
3719 dev->model = SONYPI_DEVICE_TYPE3;
3720 dev->handle_irq = type3_handle_irq;
3721 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3722 dev->event_types = type3_events;
3723 goto out;
3724 }
3725
3726 /* default */
3727 dev->model = SONYPI_DEVICE_TYPE2;
3728 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3729 dev->event_types = type2_events;
3730
3731 out:
3732 pci_dev_put(pcidev);
3733
3734 pr_info("detected Type%d model\n",
3735 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3736 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3737 }
3738
3739 /* camera tests and poweron/poweroff */
3740 #define SONYPI_CAMERA_PICTURE 5
3741 #define SONYPI_CAMERA_CONTROL 0x10
3742
3743 #define SONYPI_CAMERA_BRIGHTNESS 0
3744 #define SONYPI_CAMERA_CONTRAST 1
3745 #define SONYPI_CAMERA_HUE 2
3746 #define SONYPI_CAMERA_COLOR 3
3747 #define SONYPI_CAMERA_SHARPNESS 4
3748
3749 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
3750 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
3751 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
3752 #define SONYPI_CAMERA_MUTE_MASK 0x40
3753
3754 /* the rest don't need a loop until not 0xff */
3755 #define SONYPI_CAMERA_AGC 6
3756 #define SONYPI_CAMERA_AGC_MASK 0x30
3757 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
3758
3759 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
3760 #define SONYPI_CAMERA_CONTROL 0x10
3761
3762 #define SONYPI_CAMERA_STATUS 7
3763 #define SONYPI_CAMERA_STATUS_READY 0x2
3764 #define SONYPI_CAMERA_STATUS_POSITION 0x4
3765
3766 #define SONYPI_DIRECTION_BACKWARDS 0x4
3767
3768 #define SONYPI_CAMERA_REVISION 8
3769 #define SONYPI_CAMERA_ROMVERSION 9
3770
__sony_pic_camera_ready(void)3771 static int __sony_pic_camera_ready(void)
3772 {
3773 u8 v;
3774
3775 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3776 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3777 }
3778
__sony_pic_camera_off(void)3779 static int __sony_pic_camera_off(void)
3780 {
3781 if (!camera) {
3782 pr_warn("camera control not enabled\n");
3783 return -ENODEV;
3784 }
3785
3786 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3787 SONYPI_CAMERA_MUTE_MASK),
3788 ITERATIONS_SHORT);
3789
3790 if (spic_dev.camera_power) {
3791 sony_pic_call2(0x91, 0);
3792 spic_dev.camera_power = 0;
3793 }
3794 return 0;
3795 }
3796
__sony_pic_camera_on(void)3797 static int __sony_pic_camera_on(void)
3798 {
3799 int i, j, x;
3800
3801 if (!camera) {
3802 pr_warn("camera control not enabled\n");
3803 return -ENODEV;
3804 }
3805
3806 if (spic_dev.camera_power)
3807 return 0;
3808
3809 for (j = 5; j > 0; j--) {
3810
3811 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3812 msleep(10);
3813 sony_pic_call1(0x93);
3814
3815 for (i = 400; i > 0; i--) {
3816 if (__sony_pic_camera_ready())
3817 break;
3818 msleep(10);
3819 }
3820 if (i)
3821 break;
3822 }
3823
3824 if (j == 0) {
3825 pr_warn("failed to power on camera\n");
3826 return -ENODEV;
3827 }
3828
3829 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3830 0x5a),
3831 ITERATIONS_SHORT);
3832
3833 spic_dev.camera_power = 1;
3834 return 0;
3835 }
3836
3837 /* External camera command (exported to the motion eye v4l driver) */
sony_pic_camera_command(int command,u8 value)3838 int sony_pic_camera_command(int command, u8 value)
3839 {
3840 if (!camera)
3841 return -EIO;
3842
3843 mutex_lock(&spic_dev.lock);
3844
3845 switch (command) {
3846 case SONY_PIC_COMMAND_SETCAMERA:
3847 if (value)
3848 __sony_pic_camera_on();
3849 else
3850 __sony_pic_camera_off();
3851 break;
3852 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3853 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3854 ITERATIONS_SHORT);
3855 break;
3856 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3857 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3858 ITERATIONS_SHORT);
3859 break;
3860 case SONY_PIC_COMMAND_SETCAMERAHUE:
3861 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3862 ITERATIONS_SHORT);
3863 break;
3864 case SONY_PIC_COMMAND_SETCAMERACOLOR:
3865 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3866 ITERATIONS_SHORT);
3867 break;
3868 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3869 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3870 ITERATIONS_SHORT);
3871 break;
3872 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3873 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3874 ITERATIONS_SHORT);
3875 break;
3876 case SONY_PIC_COMMAND_SETCAMERAAGC:
3877 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3878 ITERATIONS_SHORT);
3879 break;
3880 default:
3881 pr_err("sony_pic_camera_command invalid: %d\n", command);
3882 break;
3883 }
3884 mutex_unlock(&spic_dev.lock);
3885 return 0;
3886 }
3887 EXPORT_SYMBOL(sony_pic_camera_command);
3888
3889 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
__sony_pic_set_wwanpower(u8 state)3890 static void __sony_pic_set_wwanpower(u8 state)
3891 {
3892 state = !!state;
3893 if (spic_dev.wwan_power == state)
3894 return;
3895 sony_pic_call2(0xB0, state);
3896 sony_pic_call1(0x82);
3897 spic_dev.wwan_power = state;
3898 }
3899
sony_pic_wwanpower_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)3900 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3901 struct device_attribute *attr,
3902 const char *buffer, size_t count)
3903 {
3904 unsigned long value;
3905 if (count > 31)
3906 return -EINVAL;
3907
3908 if (kstrtoul(buffer, 10, &value))
3909 return -EINVAL;
3910
3911 mutex_lock(&spic_dev.lock);
3912 __sony_pic_set_wwanpower(value);
3913 mutex_unlock(&spic_dev.lock);
3914
3915 return count;
3916 }
3917
sony_pic_wwanpower_show(struct device * dev,struct device_attribute * attr,char * buffer)3918 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3919 struct device_attribute *attr, char *buffer)
3920 {
3921 ssize_t count;
3922 mutex_lock(&spic_dev.lock);
3923 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3924 mutex_unlock(&spic_dev.lock);
3925 return count;
3926 }
3927
3928 /* bluetooth subsystem power state */
__sony_pic_set_bluetoothpower(u8 state)3929 static void __sony_pic_set_bluetoothpower(u8 state)
3930 {
3931 state = !!state;
3932 if (spic_dev.bluetooth_power == state)
3933 return;
3934 sony_pic_call2(0x96, state);
3935 sony_pic_call1(0x82);
3936 spic_dev.bluetooth_power = state;
3937 }
3938
sony_pic_bluetoothpower_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)3939 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3940 struct device_attribute *attr,
3941 const char *buffer, size_t count)
3942 {
3943 unsigned long value;
3944 if (count > 31)
3945 return -EINVAL;
3946
3947 if (kstrtoul(buffer, 10, &value))
3948 return -EINVAL;
3949
3950 mutex_lock(&spic_dev.lock);
3951 __sony_pic_set_bluetoothpower(value);
3952 mutex_unlock(&spic_dev.lock);
3953
3954 return count;
3955 }
3956
sony_pic_bluetoothpower_show(struct device * dev,struct device_attribute * attr,char * buffer)3957 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3958 struct device_attribute *attr, char *buffer)
3959 {
3960 ssize_t count = 0;
3961 mutex_lock(&spic_dev.lock);
3962 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3963 mutex_unlock(&spic_dev.lock);
3964 return count;
3965 }
3966
3967 /* fan speed */
3968 /* FAN0 information (reverse engineered from ACPI tables) */
3969 #define SONY_PIC_FAN0_STATUS 0x93
sony_pic_set_fanspeed(unsigned long value)3970 static int sony_pic_set_fanspeed(unsigned long value)
3971 {
3972 return ec_write(SONY_PIC_FAN0_STATUS, value);
3973 }
3974
sony_pic_get_fanspeed(u8 * value)3975 static int sony_pic_get_fanspeed(u8 *value)
3976 {
3977 return ec_read(SONY_PIC_FAN0_STATUS, value);
3978 }
3979
sony_pic_fanspeed_store(struct device * dev,struct device_attribute * attr,const char * buffer,size_t count)3980 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3981 struct device_attribute *attr,
3982 const char *buffer, size_t count)
3983 {
3984 unsigned long value;
3985 if (count > 31)
3986 return -EINVAL;
3987
3988 if (kstrtoul(buffer, 10, &value))
3989 return -EINVAL;
3990
3991 if (sony_pic_set_fanspeed(value))
3992 return -EIO;
3993
3994 return count;
3995 }
3996
sony_pic_fanspeed_show(struct device * dev,struct device_attribute * attr,char * buffer)3997 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3998 struct device_attribute *attr, char *buffer)
3999 {
4000 u8 value = 0;
4001 if (sony_pic_get_fanspeed(&value))
4002 return -EIO;
4003
4004 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4005 }
4006
4007 #define SPIC_ATTR(_name, _mode) \
4008 struct device_attribute spic_attr_##_name = __ATTR(_name, \
4009 _mode, sony_pic_## _name ##_show, \
4010 sony_pic_## _name ##_store)
4011
4012 static SPIC_ATTR(bluetoothpower, 0644);
4013 static SPIC_ATTR(wwanpower, 0644);
4014 static SPIC_ATTR(fanspeed, 0644);
4015
4016 static struct attribute *spic_attributes[] = {
4017 &spic_attr_bluetoothpower.attr,
4018 &spic_attr_wwanpower.attr,
4019 &spic_attr_fanspeed.attr,
4020 NULL
4021 };
4022
4023 static const struct attribute_group spic_attribute_group = {
4024 .attrs = spic_attributes
4025 };
4026
4027 /******** SONYPI compatibility **********/
4028 #ifdef CONFIG_SONYPI_COMPAT
4029
4030 /* battery / brightness / temperature addresses */
4031 #define SONYPI_BAT_FLAGS 0x81
4032 #define SONYPI_LCD_LIGHT 0x96
4033 #define SONYPI_BAT1_PCTRM 0xa0
4034 #define SONYPI_BAT1_LEFT 0xa2
4035 #define SONYPI_BAT1_MAXRT 0xa4
4036 #define SONYPI_BAT2_PCTRM 0xa8
4037 #define SONYPI_BAT2_LEFT 0xaa
4038 #define SONYPI_BAT2_MAXRT 0xac
4039 #define SONYPI_BAT1_MAXTK 0xb0
4040 #define SONYPI_BAT1_FULL 0xb2
4041 #define SONYPI_BAT2_MAXTK 0xb8
4042 #define SONYPI_BAT2_FULL 0xba
4043 #define SONYPI_TEMP_STATUS 0xC1
4044
4045 struct sonypi_compat_s {
4046 struct fasync_struct *fifo_async;
4047 struct kfifo fifo;
4048 spinlock_t fifo_lock;
4049 wait_queue_head_t fifo_proc_list;
4050 atomic_t open_count;
4051 };
4052 static struct sonypi_compat_s sonypi_compat = {
4053 .open_count = ATOMIC_INIT(0),
4054 };
4055
sonypi_misc_fasync(int fd,struct file * filp,int on)4056 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4057 {
4058 return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4059 }
4060
sonypi_misc_release(struct inode * inode,struct file * file)4061 static int sonypi_misc_release(struct inode *inode, struct file *file)
4062 {
4063 atomic_dec(&sonypi_compat.open_count);
4064 return 0;
4065 }
4066
sonypi_misc_open(struct inode * inode,struct file * file)4067 static int sonypi_misc_open(struct inode *inode, struct file *file)
4068 {
4069 /* Flush input queue on first open */
4070 unsigned long flags;
4071
4072 spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4073
4074 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4075 kfifo_reset(&sonypi_compat.fifo);
4076
4077 spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4078
4079 return 0;
4080 }
4081
sonypi_misc_read(struct file * file,char __user * buf,size_t count,loff_t * pos)4082 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4083 size_t count, loff_t *pos)
4084 {
4085 ssize_t ret;
4086 unsigned char c;
4087
4088 if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4089 (file->f_flags & O_NONBLOCK))
4090 return -EAGAIN;
4091
4092 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4093 kfifo_len(&sonypi_compat.fifo) != 0);
4094 if (ret)
4095 return ret;
4096
4097 while (ret < count &&
4098 (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4099 &sonypi_compat.fifo_lock) == sizeof(c))) {
4100 if (put_user(c, buf++))
4101 return -EFAULT;
4102 ret++;
4103 }
4104
4105 if (ret > 0) {
4106 struct inode *inode = file_inode(file);
4107 inode->i_atime = current_time(inode);
4108 }
4109
4110 return ret;
4111 }
4112
sonypi_misc_poll(struct file * file,poll_table * wait)4113 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4114 {
4115 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4116 if (kfifo_len(&sonypi_compat.fifo))
4117 return EPOLLIN | EPOLLRDNORM;
4118 return 0;
4119 }
4120
ec_read16(u8 addr,u16 * value)4121 static int ec_read16(u8 addr, u16 *value)
4122 {
4123 u8 val_lb, val_hb;
4124 if (ec_read(addr, &val_lb))
4125 return -1;
4126 if (ec_read(addr + 1, &val_hb))
4127 return -1;
4128 *value = val_lb | (val_hb << 8);
4129 return 0;
4130 }
4131
sonypi_misc_ioctl(struct file * fp,unsigned int cmd,unsigned long arg)4132 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4133 unsigned long arg)
4134 {
4135 int ret = 0;
4136 void __user *argp = (void __user *)arg;
4137 u8 val8;
4138 u16 val16;
4139 int value;
4140
4141 mutex_lock(&spic_dev.lock);
4142 switch (cmd) {
4143 case SONYPI_IOCGBRT:
4144 if (sony_bl_props.dev == NULL) {
4145 ret = -EIO;
4146 break;
4147 }
4148 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4149 &value)) {
4150 ret = -EIO;
4151 break;
4152 }
4153 val8 = ((value & 0xff) - 1) << 5;
4154 if (copy_to_user(argp, &val8, sizeof(val8)))
4155 ret = -EFAULT;
4156 break;
4157 case SONYPI_IOCSBRT:
4158 if (sony_bl_props.dev == NULL) {
4159 ret = -EIO;
4160 break;
4161 }
4162 if (copy_from_user(&val8, argp, sizeof(val8))) {
4163 ret = -EFAULT;
4164 break;
4165 }
4166 value = (val8 >> 5) + 1;
4167 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4168 NULL)) {
4169 ret = -EIO;
4170 break;
4171 }
4172 /* sync the backlight device status */
4173 sony_bl_props.dev->props.brightness =
4174 sony_backlight_get_brightness(sony_bl_props.dev);
4175 break;
4176 case SONYPI_IOCGBAT1CAP:
4177 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4178 ret = -EIO;
4179 break;
4180 }
4181 if (copy_to_user(argp, &val16, sizeof(val16)))
4182 ret = -EFAULT;
4183 break;
4184 case SONYPI_IOCGBAT1REM:
4185 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4186 ret = -EIO;
4187 break;
4188 }
4189 if (copy_to_user(argp, &val16, sizeof(val16)))
4190 ret = -EFAULT;
4191 break;
4192 case SONYPI_IOCGBAT2CAP:
4193 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4194 ret = -EIO;
4195 break;
4196 }
4197 if (copy_to_user(argp, &val16, sizeof(val16)))
4198 ret = -EFAULT;
4199 break;
4200 case SONYPI_IOCGBAT2REM:
4201 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4202 ret = -EIO;
4203 break;
4204 }
4205 if (copy_to_user(argp, &val16, sizeof(val16)))
4206 ret = -EFAULT;
4207 break;
4208 case SONYPI_IOCGBATFLAGS:
4209 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4210 ret = -EIO;
4211 break;
4212 }
4213 val8 &= 0x07;
4214 if (copy_to_user(argp, &val8, sizeof(val8)))
4215 ret = -EFAULT;
4216 break;
4217 case SONYPI_IOCGBLUE:
4218 val8 = spic_dev.bluetooth_power;
4219 if (copy_to_user(argp, &val8, sizeof(val8)))
4220 ret = -EFAULT;
4221 break;
4222 case SONYPI_IOCSBLUE:
4223 if (copy_from_user(&val8, argp, sizeof(val8))) {
4224 ret = -EFAULT;
4225 break;
4226 }
4227 __sony_pic_set_bluetoothpower(val8);
4228 break;
4229 /* FAN Controls */
4230 case SONYPI_IOCGFAN:
4231 if (sony_pic_get_fanspeed(&val8)) {
4232 ret = -EIO;
4233 break;
4234 }
4235 if (copy_to_user(argp, &val8, sizeof(val8)))
4236 ret = -EFAULT;
4237 break;
4238 case SONYPI_IOCSFAN:
4239 if (copy_from_user(&val8, argp, sizeof(val8))) {
4240 ret = -EFAULT;
4241 break;
4242 }
4243 if (sony_pic_set_fanspeed(val8))
4244 ret = -EIO;
4245 break;
4246 /* GET Temperature (useful under APM) */
4247 case SONYPI_IOCGTEMP:
4248 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4249 ret = -EIO;
4250 break;
4251 }
4252 if (copy_to_user(argp, &val8, sizeof(val8)))
4253 ret = -EFAULT;
4254 break;
4255 default:
4256 ret = -EINVAL;
4257 }
4258 mutex_unlock(&spic_dev.lock);
4259 return ret;
4260 }
4261
4262 static const struct file_operations sonypi_misc_fops = {
4263 .owner = THIS_MODULE,
4264 .read = sonypi_misc_read,
4265 .poll = sonypi_misc_poll,
4266 .open = sonypi_misc_open,
4267 .release = sonypi_misc_release,
4268 .fasync = sonypi_misc_fasync,
4269 .unlocked_ioctl = sonypi_misc_ioctl,
4270 .llseek = noop_llseek,
4271 };
4272
4273 static struct miscdevice sonypi_misc_device = {
4274 .minor = MISC_DYNAMIC_MINOR,
4275 .name = "sonypi",
4276 .fops = &sonypi_misc_fops,
4277 };
4278
sonypi_compat_report_event(u8 event)4279 static void sonypi_compat_report_event(u8 event)
4280 {
4281 kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4282 sizeof(event), &sonypi_compat.fifo_lock);
4283 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4284 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4285 }
4286
sonypi_compat_init(void)4287 static int sonypi_compat_init(void)
4288 {
4289 int error;
4290
4291 spin_lock_init(&sonypi_compat.fifo_lock);
4292 error =
4293 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4294 if (error) {
4295 pr_err("kfifo_alloc failed\n");
4296 return error;
4297 }
4298
4299 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4300
4301 if (minor != -1)
4302 sonypi_misc_device.minor = minor;
4303 error = misc_register(&sonypi_misc_device);
4304 if (error) {
4305 pr_err("misc_register failed\n");
4306 goto err_free_kfifo;
4307 }
4308 if (minor == -1)
4309 pr_info("device allocated minor is %d\n",
4310 sonypi_misc_device.minor);
4311
4312 return 0;
4313
4314 err_free_kfifo:
4315 kfifo_free(&sonypi_compat.fifo);
4316 return error;
4317 }
4318
sonypi_compat_exit(void)4319 static void sonypi_compat_exit(void)
4320 {
4321 misc_deregister(&sonypi_misc_device);
4322 kfifo_free(&sonypi_compat.fifo);
4323 }
4324 #else
sonypi_compat_init(void)4325 static int sonypi_compat_init(void) { return 0; }
sonypi_compat_exit(void)4326 static void sonypi_compat_exit(void) { }
sonypi_compat_report_event(u8 event)4327 static void sonypi_compat_report_event(u8 event) { }
4328 #endif /* CONFIG_SONYPI_COMPAT */
4329
4330 /*
4331 * ACPI callbacks
4332 */
4333 static acpi_status
sony_pic_read_possible_resource(struct acpi_resource * resource,void * context)4334 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4335 {
4336 u32 i;
4337 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4338
4339 switch (resource->type) {
4340 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4341 {
4342 /* start IO enumeration */
4343 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4344 if (!ioport)
4345 return AE_ERROR;
4346
4347 list_add(&ioport->list, &dev->ioports);
4348 return AE_OK;
4349 }
4350
4351 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4352 /* end IO enumeration */
4353 return AE_OK;
4354
4355 case ACPI_RESOURCE_TYPE_IRQ:
4356 {
4357 struct acpi_resource_irq *p = &resource->data.irq;
4358 struct sony_pic_irq *interrupt = NULL;
4359 if (!p || !p->interrupt_count) {
4360 /*
4361 * IRQ descriptors may have no IRQ# bits set,
4362 * particularly those those w/ _STA disabled
4363 */
4364 dprintk("Blank IRQ resource\n");
4365 return AE_OK;
4366 }
4367 for (i = 0; i < p->interrupt_count; i++) {
4368 if (!p->interrupts[i]) {
4369 pr_warn("Invalid IRQ %d\n",
4370 p->interrupts[i]);
4371 continue;
4372 }
4373 interrupt = kzalloc(sizeof(*interrupt),
4374 GFP_KERNEL);
4375 if (!interrupt)
4376 return AE_ERROR;
4377
4378 list_add(&interrupt->list, &dev->interrupts);
4379 interrupt->irq.triggering = p->triggering;
4380 interrupt->irq.polarity = p->polarity;
4381 interrupt->irq.shareable = p->shareable;
4382 interrupt->irq.interrupt_count = 1;
4383 interrupt->irq.interrupts[0] = p->interrupts[i];
4384 }
4385 return AE_OK;
4386 }
4387 case ACPI_RESOURCE_TYPE_IO:
4388 {
4389 struct acpi_resource_io *io = &resource->data.io;
4390 struct sony_pic_ioport *ioport =
4391 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4392 if (!io) {
4393 dprintk("Blank IO resource\n");
4394 return AE_OK;
4395 }
4396
4397 if (!ioport->io1.minimum) {
4398 memcpy(&ioport->io1, io, sizeof(*io));
4399 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4400 ioport->io1.address_length);
4401 }
4402 else if (!ioport->io2.minimum) {
4403 memcpy(&ioport->io2, io, sizeof(*io));
4404 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4405 ioport->io2.address_length);
4406 }
4407 else {
4408 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4409 return AE_ERROR;
4410 }
4411 return AE_OK;
4412 }
4413
4414 case ACPI_RESOURCE_TYPE_END_TAG:
4415 return AE_OK;
4416
4417 default:
4418 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4419 resource->type);
4420 return AE_CTRL_TERMINATE;
4421
4422 }
4423 }
4424
sony_pic_possible_resources(struct acpi_device * device)4425 static int sony_pic_possible_resources(struct acpi_device *device)
4426 {
4427 int result = 0;
4428 acpi_status status = AE_OK;
4429
4430 if (!device)
4431 return -EINVAL;
4432
4433 /* get device status */
4434 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4435 dprintk("Evaluating _STA\n");
4436 result = acpi_bus_get_status(device);
4437 if (result) {
4438 pr_warn("Unable to read status\n");
4439 goto end;
4440 }
4441
4442 if (!device->status.enabled)
4443 dprintk("Device disabled\n");
4444 else
4445 dprintk("Device enabled\n");
4446
4447 /*
4448 * Query and parse 'method'
4449 */
4450 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4451 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4452 sony_pic_read_possible_resource, &spic_dev);
4453 if (ACPI_FAILURE(status)) {
4454 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4455 result = -ENODEV;
4456 }
4457 end:
4458 return result;
4459 }
4460
4461 /*
4462 * Disable the spic device by calling its _DIS method
4463 */
sony_pic_disable(struct acpi_device * device)4464 static int sony_pic_disable(struct acpi_device *device)
4465 {
4466 acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4467 NULL);
4468
4469 if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4470 return -ENXIO;
4471
4472 dprintk("Device disabled\n");
4473 return 0;
4474 }
4475
4476
4477 /*
4478 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4479 *
4480 * Call _SRS to set current resources
4481 */
sony_pic_enable(struct acpi_device * device,struct sony_pic_ioport * ioport,struct sony_pic_irq * irq)4482 static int sony_pic_enable(struct acpi_device *device,
4483 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4484 {
4485 acpi_status status;
4486 int result = 0;
4487 /* Type 1 resource layout is:
4488 * IO
4489 * IO
4490 * IRQNoFlags
4491 * End
4492 *
4493 * Type 2 and 3 resource layout is:
4494 * IO
4495 * IRQNoFlags
4496 * End
4497 */
4498 struct {
4499 struct acpi_resource res1;
4500 struct acpi_resource res2;
4501 struct acpi_resource res3;
4502 struct acpi_resource res4;
4503 } *resource;
4504 struct acpi_buffer buffer = { 0, NULL };
4505
4506 if (!ioport || !irq)
4507 return -EINVAL;
4508
4509 /* init acpi_buffer */
4510 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4511 if (!resource)
4512 return -ENOMEM;
4513
4514 buffer.length = sizeof(*resource) + 1;
4515 buffer.pointer = resource;
4516
4517 /* setup Type 1 resources */
4518 if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4519
4520 /* setup io resources */
4521 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4522 resource->res1.length = sizeof(struct acpi_resource);
4523 memcpy(&resource->res1.data.io, &ioport->io1,
4524 sizeof(struct acpi_resource_io));
4525
4526 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4527 resource->res2.length = sizeof(struct acpi_resource);
4528 memcpy(&resource->res2.data.io, &ioport->io2,
4529 sizeof(struct acpi_resource_io));
4530
4531 /* setup irq resource */
4532 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4533 resource->res3.length = sizeof(struct acpi_resource);
4534 memcpy(&resource->res3.data.irq, &irq->irq,
4535 sizeof(struct acpi_resource_irq));
4536 /* we requested a shared irq */
4537 resource->res3.data.irq.shareable = ACPI_SHARED;
4538
4539 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4540 resource->res4.length = sizeof(struct acpi_resource);
4541 }
4542 /* setup Type 2/3 resources */
4543 else {
4544 /* setup io resource */
4545 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4546 resource->res1.length = sizeof(struct acpi_resource);
4547 memcpy(&resource->res1.data.io, &ioport->io1,
4548 sizeof(struct acpi_resource_io));
4549
4550 /* setup irq resource */
4551 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4552 resource->res2.length = sizeof(struct acpi_resource);
4553 memcpy(&resource->res2.data.irq, &irq->irq,
4554 sizeof(struct acpi_resource_irq));
4555 /* we requested a shared irq */
4556 resource->res2.data.irq.shareable = ACPI_SHARED;
4557
4558 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4559 resource->res3.length = sizeof(struct acpi_resource);
4560 }
4561
4562 /* Attempt to set the resource */
4563 dprintk("Evaluating _SRS\n");
4564 status = acpi_set_current_resources(device->handle, &buffer);
4565
4566 /* check for total failure */
4567 if (ACPI_FAILURE(status)) {
4568 pr_err("Error evaluating _SRS\n");
4569 result = -ENODEV;
4570 goto end;
4571 }
4572
4573 /* Necessary device initializations calls (from sonypi) */
4574 sony_pic_call1(0x82);
4575 sony_pic_call2(0x81, 0xff);
4576 sony_pic_call1(compat ? 0x92 : 0x82);
4577
4578 end:
4579 kfree(resource);
4580 return result;
4581 }
4582
4583 /*****************
4584 *
4585 * ISR: some event is available
4586 *
4587 *****************/
sony_pic_irq(int irq,void * dev_id)4588 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4589 {
4590 int i, j;
4591 u8 ev = 0;
4592 u8 data_mask = 0;
4593 u8 device_event = 0;
4594
4595 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4596
4597 ev = inb_p(dev->cur_ioport->io1.minimum);
4598 if (dev->cur_ioport->io2.minimum)
4599 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4600 else
4601 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4602 dev->evport_offset);
4603
4604 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4605 ev, data_mask, dev->cur_ioport->io1.minimum,
4606 dev->evport_offset);
4607
4608 if (ev == 0x00 || ev == 0xff)
4609 return IRQ_HANDLED;
4610
4611 for (i = 0; dev->event_types[i].mask; i++) {
4612
4613 if ((data_mask & dev->event_types[i].data) !=
4614 dev->event_types[i].data)
4615 continue;
4616
4617 if (!(mask & dev->event_types[i].mask))
4618 continue;
4619
4620 for (j = 0; dev->event_types[i].events[j].event; j++) {
4621 if (ev == dev->event_types[i].events[j].data) {
4622 device_event =
4623 dev->event_types[i].events[j].event;
4624 /* some events may require ignoring */
4625 if (!device_event)
4626 return IRQ_HANDLED;
4627 goto found;
4628 }
4629 }
4630 }
4631 /* Still not able to decode the event try to pass
4632 * it over to the minidriver
4633 */
4634 if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4635 return IRQ_HANDLED;
4636
4637 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4638 ev, data_mask, dev->cur_ioport->io1.minimum,
4639 dev->evport_offset);
4640 return IRQ_HANDLED;
4641
4642 found:
4643 sony_laptop_report_input_event(device_event);
4644 sonypi_compat_report_event(device_event);
4645 return IRQ_HANDLED;
4646 }
4647
4648 /*****************
4649 *
4650 * ACPI driver
4651 *
4652 *****************/
sony_pic_remove(struct acpi_device * device)4653 static int sony_pic_remove(struct acpi_device *device)
4654 {
4655 struct sony_pic_ioport *io, *tmp_io;
4656 struct sony_pic_irq *irq, *tmp_irq;
4657
4658 if (sony_pic_disable(device)) {
4659 pr_err("Couldn't disable device\n");
4660 return -ENXIO;
4661 }
4662
4663 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4664 release_region(spic_dev.cur_ioport->io1.minimum,
4665 spic_dev.cur_ioport->io1.address_length);
4666 if (spic_dev.cur_ioport->io2.minimum)
4667 release_region(spic_dev.cur_ioport->io2.minimum,
4668 spic_dev.cur_ioport->io2.address_length);
4669
4670 sonypi_compat_exit();
4671
4672 sony_laptop_remove_input();
4673
4674 /* pf attrs */
4675 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4676 sony_pf_remove();
4677
4678 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4679 list_del(&io->list);
4680 kfree(io);
4681 }
4682 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4683 list_del(&irq->list);
4684 kfree(irq);
4685 }
4686 spic_dev.cur_ioport = NULL;
4687 spic_dev.cur_irq = NULL;
4688
4689 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4690 return 0;
4691 }
4692
sony_pic_add(struct acpi_device * device)4693 static int sony_pic_add(struct acpi_device *device)
4694 {
4695 int result;
4696 struct sony_pic_ioport *io, *tmp_io;
4697 struct sony_pic_irq *irq, *tmp_irq;
4698
4699 spic_dev.acpi_dev = device;
4700 strcpy(acpi_device_class(device), "sony/hotkey");
4701 sony_pic_detect_device_type(&spic_dev);
4702 mutex_init(&spic_dev.lock);
4703
4704 /* read _PRS resources */
4705 result = sony_pic_possible_resources(device);
4706 if (result) {
4707 pr_err("Unable to read possible resources\n");
4708 goto err_free_resources;
4709 }
4710
4711 /* setup input devices and helper fifo */
4712 result = sony_laptop_setup_input(device);
4713 if (result) {
4714 pr_err("Unable to create input devices\n");
4715 goto err_free_resources;
4716 }
4717
4718 result = sonypi_compat_init();
4719 if (result)
4720 goto err_remove_input;
4721
4722 /* request io port */
4723 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4724 if (request_region(io->io1.minimum, io->io1.address_length,
4725 "Sony Programmable I/O Device")) {
4726 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4727 io->io1.minimum, io->io1.maximum,
4728 io->io1.address_length);
4729 /* Type 1 have 2 ioports */
4730 if (io->io2.minimum) {
4731 if (request_region(io->io2.minimum,
4732 io->io2.address_length,
4733 "Sony Programmable I/O Device")) {
4734 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4735 io->io2.minimum, io->io2.maximum,
4736 io->io2.address_length);
4737 spic_dev.cur_ioport = io;
4738 break;
4739 }
4740 else {
4741 dprintk("Unable to get I/O port2: "
4742 "0x%.4x (0x%.4x) + 0x%.2x\n",
4743 io->io2.minimum, io->io2.maximum,
4744 io->io2.address_length);
4745 release_region(io->io1.minimum,
4746 io->io1.address_length);
4747 }
4748 }
4749 else {
4750 spic_dev.cur_ioport = io;
4751 break;
4752 }
4753 }
4754 }
4755 if (!spic_dev.cur_ioport) {
4756 pr_err("Failed to request_region\n");
4757 result = -ENODEV;
4758 goto err_remove_compat;
4759 }
4760
4761 /* request IRQ */
4762 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4763 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4764 0, "sony-laptop", &spic_dev)) {
4765 dprintk("IRQ: %d - triggering: %d - "
4766 "polarity: %d - shr: %d\n",
4767 irq->irq.interrupts[0],
4768 irq->irq.triggering,
4769 irq->irq.polarity,
4770 irq->irq.shareable);
4771 spic_dev.cur_irq = irq;
4772 break;
4773 }
4774 }
4775 if (!spic_dev.cur_irq) {
4776 pr_err("Failed to request_irq\n");
4777 result = -ENODEV;
4778 goto err_release_region;
4779 }
4780
4781 /* set resource status _SRS */
4782 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4783 if (result) {
4784 pr_err("Couldn't enable device\n");
4785 goto err_free_irq;
4786 }
4787
4788 spic_dev.bluetooth_power = -1;
4789 /* create device attributes */
4790 result = sony_pf_add();
4791 if (result)
4792 goto err_disable_device;
4793
4794 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4795 if (result)
4796 goto err_remove_pf;
4797
4798 pr_info("SPIC setup done.\n");
4799 return 0;
4800
4801 err_remove_pf:
4802 sony_pf_remove();
4803
4804 err_disable_device:
4805 sony_pic_disable(device);
4806
4807 err_free_irq:
4808 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4809
4810 err_release_region:
4811 release_region(spic_dev.cur_ioport->io1.minimum,
4812 spic_dev.cur_ioport->io1.address_length);
4813 if (spic_dev.cur_ioport->io2.minimum)
4814 release_region(spic_dev.cur_ioport->io2.minimum,
4815 spic_dev.cur_ioport->io2.address_length);
4816
4817 err_remove_compat:
4818 sonypi_compat_exit();
4819
4820 err_remove_input:
4821 sony_laptop_remove_input();
4822
4823 err_free_resources:
4824 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4825 list_del(&io->list);
4826 kfree(io);
4827 }
4828 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4829 list_del(&irq->list);
4830 kfree(irq);
4831 }
4832 spic_dev.cur_ioport = NULL;
4833 spic_dev.cur_irq = NULL;
4834
4835 return result;
4836 }
4837
4838 #ifdef CONFIG_PM_SLEEP
sony_pic_suspend(struct device * dev)4839 static int sony_pic_suspend(struct device *dev)
4840 {
4841 if (sony_pic_disable(to_acpi_device(dev)))
4842 return -ENXIO;
4843 return 0;
4844 }
4845
sony_pic_resume(struct device * dev)4846 static int sony_pic_resume(struct device *dev)
4847 {
4848 sony_pic_enable(to_acpi_device(dev),
4849 spic_dev.cur_ioport, spic_dev.cur_irq);
4850 return 0;
4851 }
4852 #endif
4853
4854 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4855
4856 static const struct acpi_device_id sony_pic_device_ids[] = {
4857 {SONY_PIC_HID, 0},
4858 {"", 0},
4859 };
4860
4861 static struct acpi_driver sony_pic_driver = {
4862 .name = SONY_PIC_DRIVER_NAME,
4863 .class = SONY_PIC_CLASS,
4864 .ids = sony_pic_device_ids,
4865 .owner = THIS_MODULE,
4866 .ops = {
4867 .add = sony_pic_add,
4868 .remove = sony_pic_remove,
4869 },
4870 .drv.pm = &sony_pic_pm,
4871 };
4872
4873 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4874 {
4875 .ident = "Sony Vaio",
4876 .matches = {
4877 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4878 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4879 },
4880 },
4881 {
4882 .ident = "Sony Vaio",
4883 .matches = {
4884 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4885 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4886 },
4887 },
4888 { }
4889 };
4890
sony_laptop_init(void)4891 static int __init sony_laptop_init(void)
4892 {
4893 int result;
4894
4895 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4896 result = acpi_bus_register_driver(&sony_pic_driver);
4897 if (result) {
4898 pr_err("Unable to register SPIC driver\n");
4899 goto out;
4900 }
4901 spic_drv_registered = 1;
4902 }
4903
4904 result = acpi_bus_register_driver(&sony_nc_driver);
4905 if (result) {
4906 pr_err("Unable to register SNC driver\n");
4907 goto out_unregister_pic;
4908 }
4909
4910 return 0;
4911
4912 out_unregister_pic:
4913 if (spic_drv_registered)
4914 acpi_bus_unregister_driver(&sony_pic_driver);
4915 out:
4916 return result;
4917 }
4918
sony_laptop_exit(void)4919 static void __exit sony_laptop_exit(void)
4920 {
4921 acpi_bus_unregister_driver(&sony_nc_driver);
4922 if (spic_drv_registered)
4923 acpi_bus_unregister_driver(&sony_pic_driver);
4924 }
4925
4926 module_init(sony_laptop_init);
4927 module_exit(sony_laptop_exit);
4928
