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