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Merge tag 'for-linus-20160523' of git://git.infradead.org/linux-mtd
[deliverable/linux.git] / drivers / platform / x86 / sony-laptop.c
1 /*
2 * ACPI Sony Notebook Control Driver (SNC and SPIC)
3 *
4 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
5 * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
6 *
7 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
8 * which are copyrighted by their respective authors.
9 *
10 * The SNY6001 driver part is based on the sonypi driver which includes
11 * material from:
12 *
13 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
14 *
15 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
16 *
17 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
18 *
19 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
20 *
21 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
22 *
23 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
24 *
25 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
26 *
27 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
28 *
29 * This program is free software; you can redistribute it and/or modify
30 * it under the terms of the GNU General Public License as published by
31 * the Free Software Foundation; either version 2 of the License, or
32 * (at your option) any later version.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
42 *
43 */
44
45 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
46
47 #include <linux/kernel.h>
48 #include <linux/module.h>
49 #include <linux/moduleparam.h>
50 #include <linux/init.h>
51 #include <linux/types.h>
52 #include <linux/backlight.h>
53 #include <linux/platform_device.h>
54 #include <linux/err.h>
55 #include <linux/dmi.h>
56 #include <linux/pci.h>
57 #include <linux/interrupt.h>
58 #include <linux/delay.h>
59 #include <linux/input.h>
60 #include <linux/kfifo.h>
61 #include <linux/workqueue.h>
62 #include <linux/acpi.h>
63 #include <linux/slab.h>
64 #include <linux/sonypi.h>
65 #include <linux/sony-laptop.h>
66 #include <linux/rfkill.h>
67 #ifdef CONFIG_SONYPI_COMPAT
68 #include <linux/poll.h>
69 #include <linux/miscdevice.h>
70 #endif
71 #include <asm/uaccess.h>
72 #include <acpi/video.h>
73
74 #define dprintk(fmt, ...) \
75 do { \
76 if (debug) \
77 pr_warn(fmt, ##__VA_ARGS__); \
78 } while (0)
79
80 #define SONY_NC_CLASS "sony-nc"
81 #define SONY_NC_HID "SNY5001"
82 #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
83
84 #define SONY_PIC_CLASS "sony-pic"
85 #define SONY_PIC_HID "SNY6001"
86 #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
87
88 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
89 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
90 MODULE_LICENSE("GPL");
91
92 static int debug;
93 module_param(debug, int, 0);
94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
95 "the development of this driver");
96
97 static int no_spic; /* = 0 */
98 module_param(no_spic, int, 0444);
99 MODULE_PARM_DESC(no_spic,
100 "set this if you don't want to enable the SPIC device");
101
102 static int compat; /* = 0 */
103 module_param(compat, int, 0444);
104 MODULE_PARM_DESC(compat,
105 "set this if you want to enable backward compatibility mode");
106
107 static unsigned long mask = 0xffffffff;
108 module_param(mask, ulong, 0644);
109 MODULE_PARM_DESC(mask,
110 "set this to the mask of event you want to enable (see doc)");
111
112 static int camera; /* = 0 */
113 module_param(camera, int, 0444);
114 MODULE_PARM_DESC(camera,
115 "set this to 1 to enable Motion Eye camera controls "
116 "(only use it if you have a C1VE or C1VN model)");
117
118 #ifdef CONFIG_SONYPI_COMPAT
119 static int minor = -1;
120 module_param(minor, int, 0);
121 MODULE_PARM_DESC(minor,
122 "minor number of the misc device for the SPIC compatibility code, "
123 "default is -1 (automatic)");
124 #endif
125
126 static int kbd_backlight = -1;
127 module_param(kbd_backlight, int, 0444);
128 MODULE_PARM_DESC(kbd_backlight,
129 "set this to 0 to disable keyboard backlight, "
130 "1 to enable it with automatic control and 2 to have it always "
131 "on (default: no change from current value)");
132
133 static int kbd_backlight_timeout = -1;
134 module_param(kbd_backlight_timeout, int, 0444);
135 MODULE_PARM_DESC(kbd_backlight_timeout,
136 "meaningful values vary from 0 to 3 and their meaning depends "
137 "on the model (default: no change from current value)");
138
139 #ifdef CONFIG_PM_SLEEP
140 static void sony_nc_thermal_resume(void);
141 #endif
142 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
143 unsigned int handle);
144 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
145 unsigned int handle);
146
147 static int sony_nc_battery_care_setup(struct platform_device *pd,
148 unsigned int handle);
149 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
150
151 static int sony_nc_thermal_setup(struct platform_device *pd);
152 static void sony_nc_thermal_cleanup(struct platform_device *pd);
153
154 static int sony_nc_lid_resume_setup(struct platform_device *pd,
155 unsigned int handle);
156 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
157
158 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
159 unsigned int handle);
160 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
161 static int __sony_nc_gfx_switch_status_get(void);
162
163 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
164 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
165
166 static int sony_nc_lowbatt_setup(struct platform_device *pd);
167 static void sony_nc_lowbatt_cleanup(struct platform_device *pd);
168
169 static int sony_nc_fanspeed_setup(struct platform_device *pd);
170 static void sony_nc_fanspeed_cleanup(struct platform_device *pd);
171
172 static int sony_nc_usb_charge_setup(struct platform_device *pd);
173 static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
174
175 static int sony_nc_panelid_setup(struct platform_device *pd);
176 static void sony_nc_panelid_cleanup(struct platform_device *pd);
177
178 static int sony_nc_smart_conn_setup(struct platform_device *pd);
179 static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
180
181 static int sony_nc_touchpad_setup(struct platform_device *pd,
182 unsigned int handle);
183 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
184
185 enum sony_nc_rfkill {
186 SONY_WIFI,
187 SONY_BLUETOOTH,
188 SONY_WWAN,
189 SONY_WIMAX,
190 N_SONY_RFKILL,
191 };
192
193 static int sony_rfkill_handle;
194 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
195 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
196 static int sony_nc_rfkill_setup(struct acpi_device *device,
197 unsigned int handle);
198 static void sony_nc_rfkill_cleanup(void);
199 static void sony_nc_rfkill_update(void);
200
201 /*********** Input Devices ***********/
202
203 #define SONY_LAPTOP_BUF_SIZE 128
204 struct sony_laptop_input_s {
205 atomic_t users;
206 struct input_dev *jog_dev;
207 struct input_dev *key_dev;
208 struct kfifo fifo;
209 spinlock_t fifo_lock;
210 struct timer_list release_key_timer;
211 };
212
213 static struct sony_laptop_input_s sony_laptop_input = {
214 .users = ATOMIC_INIT(0),
215 };
216
217 struct sony_laptop_keypress {
218 struct input_dev *dev;
219 int key;
220 };
221
222 /* Correspondance table between sonypi events
223 * and input layer indexes in the keymap
224 */
225 static int sony_laptop_input_index[] = {
226 -1, /* 0 no event */
227 -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */
228 -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */
229 -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
230 -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
231 -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */
232 -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */
233 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */
234 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */
235 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
236 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
237 4, /* 11 SONYPI_EVENT_FNKEY_ESC */
238 5, /* 12 SONYPI_EVENT_FNKEY_F1 */
239 6, /* 13 SONYPI_EVENT_FNKEY_F2 */
240 7, /* 14 SONYPI_EVENT_FNKEY_F3 */
241 8, /* 15 SONYPI_EVENT_FNKEY_F4 */
242 9, /* 16 SONYPI_EVENT_FNKEY_F5 */
243 10, /* 17 SONYPI_EVENT_FNKEY_F6 */
244 11, /* 18 SONYPI_EVENT_FNKEY_F7 */
245 12, /* 19 SONYPI_EVENT_FNKEY_F8 */
246 13, /* 20 SONYPI_EVENT_FNKEY_F9 */
247 14, /* 21 SONYPI_EVENT_FNKEY_F10 */
248 15, /* 22 SONYPI_EVENT_FNKEY_F11 */
249 16, /* 23 SONYPI_EVENT_FNKEY_F12 */
250 17, /* 24 SONYPI_EVENT_FNKEY_1 */
251 18, /* 25 SONYPI_EVENT_FNKEY_2 */
252 19, /* 26 SONYPI_EVENT_FNKEY_D */
253 20, /* 27 SONYPI_EVENT_FNKEY_E */
254 21, /* 28 SONYPI_EVENT_FNKEY_F */
255 22, /* 29 SONYPI_EVENT_FNKEY_S */
256 23, /* 30 SONYPI_EVENT_FNKEY_B */
257 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
258 25, /* 32 SONYPI_EVENT_PKEY_P1 */
259 26, /* 33 SONYPI_EVENT_PKEY_P2 */
260 27, /* 34 SONYPI_EVENT_PKEY_P3 */
261 28, /* 35 SONYPI_EVENT_BACK_PRESSED */
262 -1, /* 36 SONYPI_EVENT_LID_CLOSED */
263 -1, /* 37 SONYPI_EVENT_LID_OPENED */
264 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */
265 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
266 31, /* 40 SONYPI_EVENT_HELP_PRESSED */
267 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */
268 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
269 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
270 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
271 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
272 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
273 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
274 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
275 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
276 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */
277 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
278 43, /* 52 SONYPI_EVENT_MEYE_FACE */
279 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
280 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
281 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
282 -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
283 -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */
284 -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */
285 -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */
286 47, /* 60 SONYPI_EVENT_WIRELESS_ON */
287 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */
288 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
289 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
290 51, /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
291 52, /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
292 53, /* 66 SONYPI_EVENT_PKEY_P4 */
293 54, /* 67 SONYPI_EVENT_PKEY_P5 */
294 55, /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
295 56, /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
296 57, /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
297 -1, /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
298 58, /* 72 SONYPI_EVENT_MEDIA_PRESSED */
299 59, /* 72 SONYPI_EVENT_VENDOR_PRESSED */
300 };
301
302 static int sony_laptop_input_keycode_map[] = {
303 KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
304 KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
305 KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
306 KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
307 KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
308 KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
309 KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
310 KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
311 KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
312 KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
313 KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
314 KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
315 KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
316 KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
317 KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
318 KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
319 KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
320 KEY_FN_1, /* 17 SONYPI_EVENT_FNKEY_1 */
321 KEY_FN_2, /* 18 SONYPI_EVENT_FNKEY_2 */
322 KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
323 KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
324 KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
325 KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
326 KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
327 KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
328 KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
329 KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
330 KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
331 KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
332 KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
333 KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
334 KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
335 KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
336 KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
337 KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
338 KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
339 KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
340 KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
341 KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
342 KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
343 KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
344 KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
345 BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
346 KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
347 KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
348 KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
349 KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
350 KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
351 KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
352 KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
353 KEY_ZOOMOUT, /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
354 KEY_EJECTCD, /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
355 KEY_F13, /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
356 KEY_PROG4, /* 53 SONYPI_EVENT_PKEY_P4 */
357 KEY_F14, /* 54 SONYPI_EVENT_PKEY_P5 */
358 KEY_F15, /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
359 KEY_VOLUMEUP, /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
360 KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
361 KEY_MEDIA, /* 58 SONYPI_EVENT_MEDIA_PRESSED */
362 KEY_VENDOR, /* 59 SONYPI_EVENT_VENDOR_PRESSED */
363 };
364
365 /* release buttons after a short delay if pressed */
366 static void do_sony_laptop_release_key(unsigned long unused)
367 {
368 struct sony_laptop_keypress kp;
369 unsigned long flags;
370
371 spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
372
373 if (kfifo_out(&sony_laptop_input.fifo,
374 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
375 input_report_key(kp.dev, kp.key, 0);
376 input_sync(kp.dev);
377 }
378
379 /* If there is something in the fifo schedule next release. */
380 if (kfifo_len(&sony_laptop_input.fifo) != 0)
381 mod_timer(&sony_laptop_input.release_key_timer,
382 jiffies + msecs_to_jiffies(10));
383
384 spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
385 }
386
387 /* forward event to the input subsystem */
388 static void sony_laptop_report_input_event(u8 event)
389 {
390 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
391 struct input_dev *key_dev = sony_laptop_input.key_dev;
392 struct sony_laptop_keypress kp = { NULL };
393 int scancode = -1;
394
395 if (event == SONYPI_EVENT_FNKEY_RELEASED ||
396 event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
397 /* Nothing, not all VAIOs generate this event */
398 return;
399 }
400
401 /* report events */
402 switch (event) {
403 /* jog_dev events */
404 case SONYPI_EVENT_JOGDIAL_UP:
405 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
406 input_report_rel(jog_dev, REL_WHEEL, 1);
407 input_sync(jog_dev);
408 return;
409
410 case SONYPI_EVENT_JOGDIAL_DOWN:
411 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
412 input_report_rel(jog_dev, REL_WHEEL, -1);
413 input_sync(jog_dev);
414 return;
415
416 /* key_dev events */
417 case SONYPI_EVENT_JOGDIAL_PRESSED:
418 kp.key = BTN_MIDDLE;
419 kp.dev = jog_dev;
420 break;
421
422 default:
423 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
424 dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
425 break;
426 }
427 if ((scancode = sony_laptop_input_index[event]) != -1) {
428 kp.key = sony_laptop_input_keycode_map[scancode];
429 if (kp.key != KEY_UNKNOWN)
430 kp.dev = key_dev;
431 }
432 break;
433 }
434
435 if (kp.dev) {
436 /* if we have a scancode we emit it so we can always
437 remap the key */
438 if (scancode != -1)
439 input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
440 input_report_key(kp.dev, kp.key, 1);
441 input_sync(kp.dev);
442
443 /* schedule key release */
444 kfifo_in_locked(&sony_laptop_input.fifo,
445 (unsigned char *)&kp, sizeof(kp),
446 &sony_laptop_input.fifo_lock);
447 mod_timer(&sony_laptop_input.release_key_timer,
448 jiffies + msecs_to_jiffies(10));
449 } else
450 dprintk("unknown input event %.2x\n", event);
451 }
452
453 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
454 {
455 struct input_dev *jog_dev;
456 struct input_dev *key_dev;
457 int i;
458 int error;
459
460 /* don't run again if already initialized */
461 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
462 return 0;
463
464 /* kfifo */
465 spin_lock_init(&sony_laptop_input.fifo_lock);
466 error = kfifo_alloc(&sony_laptop_input.fifo,
467 SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
468 if (error) {
469 pr_err("kfifo_alloc failed\n");
470 goto err_dec_users;
471 }
472
473 setup_timer(&sony_laptop_input.release_key_timer,
474 do_sony_laptop_release_key, 0);
475
476 /* input keys */
477 key_dev = input_allocate_device();
478 if (!key_dev) {
479 error = -ENOMEM;
480 goto err_free_kfifo;
481 }
482
483 key_dev->name = "Sony Vaio Keys";
484 key_dev->id.bustype = BUS_ISA;
485 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
486 key_dev->dev.parent = &acpi_device->dev;
487
488 /* Initialize the Input Drivers: special keys */
489 input_set_capability(key_dev, EV_MSC, MSC_SCAN);
490
491 __set_bit(EV_KEY, key_dev->evbit);
492 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
493 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
494 key_dev->keycode = &sony_laptop_input_keycode_map;
495 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
496 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
497 __clear_bit(KEY_RESERVED, key_dev->keybit);
498
499 error = input_register_device(key_dev);
500 if (error)
501 goto err_free_keydev;
502
503 sony_laptop_input.key_dev = key_dev;
504
505 /* jogdial */
506 jog_dev = input_allocate_device();
507 if (!jog_dev) {
508 error = -ENOMEM;
509 goto err_unregister_keydev;
510 }
511
512 jog_dev->name = "Sony Vaio Jogdial";
513 jog_dev->id.bustype = BUS_ISA;
514 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
515 jog_dev->dev.parent = &acpi_device->dev;
516
517 input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
518 input_set_capability(jog_dev, EV_REL, REL_WHEEL);
519
520 error = input_register_device(jog_dev);
521 if (error)
522 goto err_free_jogdev;
523
524 sony_laptop_input.jog_dev = jog_dev;
525
526 return 0;
527
528 err_free_jogdev:
529 input_free_device(jog_dev);
530
531 err_unregister_keydev:
532 input_unregister_device(key_dev);
533 /* to avoid kref underflow below at input_free_device */
534 key_dev = NULL;
535
536 err_free_keydev:
537 input_free_device(key_dev);
538
539 err_free_kfifo:
540 kfifo_free(&sony_laptop_input.fifo);
541
542 err_dec_users:
543 atomic_dec(&sony_laptop_input.users);
544 return error;
545 }
546
547 static void sony_laptop_remove_input(void)
548 {
549 struct sony_laptop_keypress kp = { NULL };
550
551 /* Cleanup only after the last user has gone */
552 if (!atomic_dec_and_test(&sony_laptop_input.users))
553 return;
554
555 del_timer_sync(&sony_laptop_input.release_key_timer);
556
557 /*
558 * Generate key-up events for remaining keys. Note that we don't
559 * need locking since nobody is adding new events to the kfifo.
560 */
561 while (kfifo_out(&sony_laptop_input.fifo,
562 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
563 input_report_key(kp.dev, kp.key, 0);
564 input_sync(kp.dev);
565 }
566
567 /* destroy input devs */
568 input_unregister_device(sony_laptop_input.key_dev);
569 sony_laptop_input.key_dev = NULL;
570
571 if (sony_laptop_input.jog_dev) {
572 input_unregister_device(sony_laptop_input.jog_dev);
573 sony_laptop_input.jog_dev = NULL;
574 }
575
576 kfifo_free(&sony_laptop_input.fifo);
577 }
578
579 /*********** Platform Device ***********/
580
581 static atomic_t sony_pf_users = ATOMIC_INIT(0);
582 static struct platform_driver sony_pf_driver = {
583 .driver = {
584 .name = "sony-laptop",
585 }
586 };
587 static struct platform_device *sony_pf_device;
588
589 static int sony_pf_add(void)
590 {
591 int ret = 0;
592
593 /* don't run again if already initialized */
594 if (atomic_add_return(1, &sony_pf_users) > 1)
595 return 0;
596
597 ret = platform_driver_register(&sony_pf_driver);
598 if (ret)
599 goto out;
600
601 sony_pf_device = platform_device_alloc("sony-laptop", -1);
602 if (!sony_pf_device) {
603 ret = -ENOMEM;
604 goto out_platform_registered;
605 }
606
607 ret = platform_device_add(sony_pf_device);
608 if (ret)
609 goto out_platform_alloced;
610
611 return 0;
612
613 out_platform_alloced:
614 platform_device_put(sony_pf_device);
615 sony_pf_device = NULL;
616 out_platform_registered:
617 platform_driver_unregister(&sony_pf_driver);
618 out:
619 atomic_dec(&sony_pf_users);
620 return ret;
621 }
622
623 static void sony_pf_remove(void)
624 {
625 /* deregister only after the last user has gone */
626 if (!atomic_dec_and_test(&sony_pf_users))
627 return;
628
629 platform_device_unregister(sony_pf_device);
630 platform_driver_unregister(&sony_pf_driver);
631 }
632
633 /*********** SNC (SNY5001) Device ***********/
634
635 /* the device uses 1-based values, while the backlight subsystem uses
636 0-based values */
637 #define SONY_MAX_BRIGHTNESS 8
638
639 #define SNC_VALIDATE_IN 0
640 #define SNC_VALIDATE_OUT 1
641
642 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
643 char *);
644 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
645 const char *, size_t);
646 static int boolean_validate(const int, const int);
647 static int brightness_default_validate(const int, const int);
648
649 struct sony_nc_value {
650 char *name; /* name of the entry */
651 char **acpiget; /* names of the ACPI get function */
652 char **acpiset; /* names of the ACPI set function */
653 int (*validate)(const int, const int); /* input/output validation */
654 int value; /* current setting */
655 int valid; /* Has ever been set */
656 int debug; /* active only in debug mode ? */
657 struct device_attribute devattr; /* sysfs attribute */
658 };
659
660 #define SNC_HANDLE_NAMES(_name, _values...) \
661 static char *snc_##_name[] = { _values, NULL }
662
663 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
664 { \
665 .name = __stringify(_name), \
666 .acpiget = _getters, \
667 .acpiset = _setters, \
668 .validate = _validate, \
669 .debug = _debug, \
670 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
671 }
672
673 #define SNC_HANDLE_NULL { .name = NULL }
674
675 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
676
677 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
678 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
679
680 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
681 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
682
683 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
684 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
685
686 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
687 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
688
689 SNC_HANDLE_NAMES(lidstate_get, "GLID");
690
691 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
692 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
693
694 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
695 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
696
697 SNC_HANDLE_NAMES(PID_get, "GPID");
698
699 SNC_HANDLE_NAMES(CTR_get, "GCTR");
700 SNC_HANDLE_NAMES(CTR_set, "SCTR");
701
702 SNC_HANDLE_NAMES(PCR_get, "GPCR");
703 SNC_HANDLE_NAMES(PCR_set, "SPCR");
704
705 SNC_HANDLE_NAMES(CMI_get, "GCMI");
706 SNC_HANDLE_NAMES(CMI_set, "SCMI");
707
708 static struct sony_nc_value sony_nc_values[] = {
709 SNC_HANDLE(brightness_default, snc_brightness_def_get,
710 snc_brightness_def_set, brightness_default_validate, 0),
711 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
712 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
713 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
714 boolean_validate, 0),
715 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
716 boolean_validate, 1),
717 SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
718 boolean_validate, 0),
719 SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
720 boolean_validate, 0),
721 SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
722 boolean_validate, 0),
723 /* unknown methods */
724 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
725 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
726 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
727 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
728 SNC_HANDLE_NULL
729 };
730
731 static acpi_handle sony_nc_acpi_handle;
732 static struct acpi_device *sony_nc_acpi_device = NULL;
733
734 /*
735 * acpi_evaluate_object wrappers
736 * all useful calls into SNC methods take one or zero parameters and return
737 * integers or arrays.
738 */
739 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
740 u64 *value)
741 {
742 union acpi_object *result = NULL;
743 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
744 acpi_status status;
745
746 if (value) {
747 struct acpi_object_list params;
748 union acpi_object in;
749 in.type = ACPI_TYPE_INTEGER;
750 in.integer.value = *value;
751 params.count = 1;
752 params.pointer = &in;
753 status = acpi_evaluate_object(handle, method, &params, &output);
754 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
755 (unsigned int)(*value >> 32),
756 (unsigned int)*value & 0xffffffff);
757 } else {
758 status = acpi_evaluate_object(handle, method, NULL, &output);
759 dprintk("__call_snc_method: [%s]\n", method);
760 }
761
762 if (ACPI_FAILURE(status)) {
763 pr_err("Failed to evaluate [%s]\n", method);
764 return NULL;
765 }
766
767 result = (union acpi_object *) output.pointer;
768 if (!result)
769 dprintk("No return object [%s]\n", method);
770
771 return result;
772 }
773
774 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
775 int *result)
776 {
777 union acpi_object *object = NULL;
778 if (value) {
779 u64 v = *value;
780 object = __call_snc_method(handle, name, &v);
781 } else
782 object = __call_snc_method(handle, name, NULL);
783
784 if (!object)
785 return -EINVAL;
786
787 if (object->type != ACPI_TYPE_INTEGER) {
788 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
789 ACPI_TYPE_INTEGER, object->type);
790 kfree(object);
791 return -EINVAL;
792 }
793
794 if (result)
795 *result = object->integer.value;
796
797 kfree(object);
798 return 0;
799 }
800
801 #define MIN(a, b) (a > b ? b : a)
802 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
803 void *buffer, size_t buflen)
804 {
805 int ret = 0;
806 size_t len;
807 union acpi_object *object = __call_snc_method(handle, name, value);
808
809 if (!object)
810 return -EINVAL;
811
812 if (object->type == ACPI_TYPE_BUFFER) {
813 len = MIN(buflen, object->buffer.length);
814 memcpy(buffer, object->buffer.pointer, len);
815
816 } else if (object->type == ACPI_TYPE_INTEGER) {
817 len = MIN(buflen, sizeof(object->integer.value));
818 memcpy(buffer, &object->integer.value, len);
819
820 } else {
821 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
822 ACPI_TYPE_BUFFER, object->type);
823 ret = -EINVAL;
824 }
825
826 kfree(object);
827 return ret;
828 }
829
830 struct sony_nc_handles {
831 u16 cap[0x10];
832 struct device_attribute devattr;
833 };
834
835 static struct sony_nc_handles *handles;
836
837 static ssize_t sony_nc_handles_show(struct device *dev,
838 struct device_attribute *attr, char *buffer)
839 {
840 ssize_t len = 0;
841 int i;
842
843 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
844 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
845 handles->cap[i]);
846 }
847 len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
848
849 return len;
850 }
851
852 static int sony_nc_handles_setup(struct platform_device *pd)
853 {
854 int i, r, result, arg;
855
856 handles = kzalloc(sizeof(*handles), GFP_KERNEL);
857 if (!handles)
858 return -ENOMEM;
859
860 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
861 arg = i + 0x20;
862 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
863 &result);
864 if (!r) {
865 dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
866 result, i);
867 handles->cap[i] = result;
868 }
869 }
870
871 if (debug) {
872 sysfs_attr_init(&handles->devattr.attr);
873 handles->devattr.attr.name = "handles";
874 handles->devattr.attr.mode = S_IRUGO;
875 handles->devattr.show = sony_nc_handles_show;
876
877 /* allow reading capabilities via sysfs */
878 if (device_create_file(&pd->dev, &handles->devattr)) {
879 kfree(handles);
880 handles = NULL;
881 return -1;
882 }
883 }
884
885 return 0;
886 }
887
888 static int sony_nc_handles_cleanup(struct platform_device *pd)
889 {
890 if (handles) {
891 if (debug)
892 device_remove_file(&pd->dev, &handles->devattr);
893 kfree(handles);
894 handles = NULL;
895 }
896 return 0;
897 }
898
899 static int sony_find_snc_handle(int handle)
900 {
901 int i;
902
903 /* not initialized yet, return early */
904 if (!handles || !handle)
905 return -EINVAL;
906
907 for (i = 0; i < 0x10; i++) {
908 if (handles->cap[i] == handle) {
909 dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
910 handle, i);
911 return i;
912 }
913 }
914 dprintk("handle 0x%.4x not found\n", handle);
915 return -EINVAL;
916 }
917
918 static int sony_call_snc_handle(int handle, int argument, int *result)
919 {
920 int arg, ret = 0;
921 int offset = sony_find_snc_handle(handle);
922
923 if (offset < 0)
924 return offset;
925
926 arg = offset | argument;
927 ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
928 dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
929 return ret;
930 }
931
932 /*
933 * sony_nc_values input/output validate functions
934 */
935
936 /* brightness_default_validate:
937 *
938 * manipulate input output values to keep consistency with the
939 * backlight framework for which brightness values are 0-based.
940 */
941 static int brightness_default_validate(const int direction, const int value)
942 {
943 switch (direction) {
944 case SNC_VALIDATE_OUT:
945 return value - 1;
946 case SNC_VALIDATE_IN:
947 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
948 return value + 1;
949 }
950 return -EINVAL;
951 }
952
953 /* boolean_validate:
954 *
955 * on input validate boolean values 0/1, on output just pass the
956 * received value.
957 */
958 static int boolean_validate(const int direction, const int value)
959 {
960 if (direction == SNC_VALIDATE_IN) {
961 if (value != 0 && value != 1)
962 return -EINVAL;
963 }
964 return value;
965 }
966
967 /*
968 * Sysfs show/store common to all sony_nc_values
969 */
970 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
971 char *buffer)
972 {
973 int value, ret = 0;
974 struct sony_nc_value *item =
975 container_of(attr, struct sony_nc_value, devattr);
976
977 if (!*item->acpiget)
978 return -EIO;
979
980 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
981 &value);
982 if (ret < 0)
983 return -EIO;
984
985 if (item->validate)
986 value = item->validate(SNC_VALIDATE_OUT, value);
987
988 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
989 }
990
991 static ssize_t sony_nc_sysfs_store(struct device *dev,
992 struct device_attribute *attr,
993 const char *buffer, size_t count)
994 {
995 int value;
996 int ret = 0;
997 struct sony_nc_value *item =
998 container_of(attr, struct sony_nc_value, devattr);
999
1000 if (!item->acpiset)
1001 return -EIO;
1002
1003 if (count > 31)
1004 return -EINVAL;
1005
1006 if (kstrtoint(buffer, 10, &value))
1007 return -EINVAL;
1008
1009 if (item->validate)
1010 value = item->validate(SNC_VALIDATE_IN, value);
1011
1012 if (value < 0)
1013 return value;
1014
1015 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1016 &value, NULL);
1017 if (ret < 0)
1018 return -EIO;
1019
1020 item->value = value;
1021 item->valid = 1;
1022 return count;
1023 }
1024
1025
1026 /*
1027 * Backlight device
1028 */
1029 struct sony_backlight_props {
1030 struct backlight_device *dev;
1031 int handle;
1032 int cmd_base;
1033 u8 offset;
1034 u8 maxlvl;
1035 };
1036 static struct sony_backlight_props sony_bl_props;
1037
1038 static int sony_backlight_update_status(struct backlight_device *bd)
1039 {
1040 int arg = bd->props.brightness + 1;
1041 return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1042 }
1043
1044 static int sony_backlight_get_brightness(struct backlight_device *bd)
1045 {
1046 int value;
1047
1048 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1049 return 0;
1050 /* brightness levels are 1-based, while backlight ones are 0-based */
1051 return value - 1;
1052 }
1053
1054 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1055 {
1056 int result;
1057 struct sony_backlight_props *sdev =
1058 (struct sony_backlight_props *)bl_get_data(bd);
1059
1060 sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1061
1062 return (result & 0xff) - sdev->offset;
1063 }
1064
1065 static int sony_nc_update_status_ng(struct backlight_device *bd)
1066 {
1067 int value, result;
1068 struct sony_backlight_props *sdev =
1069 (struct sony_backlight_props *)bl_get_data(bd);
1070
1071 value = bd->props.brightness + sdev->offset;
1072 if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1073 &result))
1074 return -EIO;
1075
1076 return value;
1077 }
1078
1079 static const struct backlight_ops sony_backlight_ops = {
1080 .options = BL_CORE_SUSPENDRESUME,
1081 .update_status = sony_backlight_update_status,
1082 .get_brightness = sony_backlight_get_brightness,
1083 };
1084 static const struct backlight_ops sony_backlight_ng_ops = {
1085 .options = BL_CORE_SUSPENDRESUME,
1086 .update_status = sony_nc_update_status_ng,
1087 .get_brightness = sony_nc_get_brightness_ng,
1088 };
1089
1090 /*
1091 * New SNC-only Vaios event mapping to driver known keys
1092 */
1093 struct sony_nc_event {
1094 u8 data;
1095 u8 event;
1096 };
1097
1098 static struct sony_nc_event sony_100_events[] = {
1099 { 0x90, SONYPI_EVENT_PKEY_P1 },
1100 { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1101 { 0x91, SONYPI_EVENT_PKEY_P2 },
1102 { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1103 { 0x81, SONYPI_EVENT_FNKEY_F1 },
1104 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1105 { 0x82, SONYPI_EVENT_FNKEY_F2 },
1106 { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1107 { 0x83, SONYPI_EVENT_FNKEY_F3 },
1108 { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1109 { 0x84, SONYPI_EVENT_FNKEY_F4 },
1110 { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1111 { 0x85, SONYPI_EVENT_FNKEY_F5 },
1112 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1113 { 0x86, SONYPI_EVENT_FNKEY_F6 },
1114 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1115 { 0x87, SONYPI_EVENT_FNKEY_F7 },
1116 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1117 { 0x88, SONYPI_EVENT_FNKEY_F8 },
1118 { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1119 { 0x89, SONYPI_EVENT_FNKEY_F9 },
1120 { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1121 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1122 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1123 { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1124 { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1125 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1126 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1127 { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1128 { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1129 { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1130 { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1131 { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1132 { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133 { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1134 { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135 { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1136 { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137 { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1138 { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1139 { 0xa8, SONYPI_EVENT_FNKEY_1 },
1140 { 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1141 { 0, 0 },
1142 };
1143
1144 static struct sony_nc_event sony_127_events[] = {
1145 { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1146 { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1147 { 0x82, SONYPI_EVENT_PKEY_P1 },
1148 { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1149 { 0x83, SONYPI_EVENT_PKEY_P2 },
1150 { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1151 { 0x84, SONYPI_EVENT_PKEY_P3 },
1152 { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1153 { 0x85, SONYPI_EVENT_PKEY_P4 },
1154 { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1155 { 0x86, SONYPI_EVENT_PKEY_P5 },
1156 { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1157 { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1158 { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1159 { 0, 0 },
1160 };
1161
1162 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1163 {
1164 int ret = -EINVAL;
1165 unsigned int result = 0;
1166 struct sony_nc_event *key_event;
1167
1168 if (sony_call_snc_handle(handle, 0x200, &result)) {
1169 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1170 event);
1171 return -EINVAL;
1172 }
1173
1174 result &= 0xFF;
1175
1176 if (handle == 0x0100)
1177 key_event = sony_100_events;
1178 else
1179 key_event = sony_127_events;
1180
1181 for (; key_event->data; key_event++) {
1182 if (key_event->data == result) {
1183 ret = key_event->event;
1184 break;
1185 }
1186 }
1187
1188 if (!key_event->data)
1189 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1190 event, result, handle);
1191
1192 return ret;
1193 }
1194
1195 /*
1196 * ACPI callbacks
1197 */
1198 enum event_types {
1199 HOTKEY = 1,
1200 KILLSWITCH,
1201 GFX_SWITCH
1202 };
1203 static void sony_nc_notify(struct acpi_device *device, u32 event)
1204 {
1205 u32 real_ev = event;
1206 u8 ev_type = 0;
1207 int ret;
1208
1209 dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1210
1211 if (event >= 0x90) {
1212 unsigned int result = 0;
1213 unsigned int arg = 0;
1214 unsigned int handle = 0;
1215 unsigned int offset = event - 0x90;
1216
1217 if (offset >= ARRAY_SIZE(handles->cap)) {
1218 pr_err("Event 0x%x outside of capabilities list\n",
1219 event);
1220 return;
1221 }
1222 handle = handles->cap[offset];
1223
1224 /* list of handles known for generating events */
1225 switch (handle) {
1226 /* hotkey event */
1227 case 0x0100:
1228 case 0x0127:
1229 ev_type = HOTKEY;
1230 ret = sony_nc_hotkeys_decode(event, handle);
1231
1232 if (ret > 0) {
1233 sony_laptop_report_input_event(ret);
1234 real_ev = ret;
1235 }
1236
1237 break;
1238
1239 /* wlan switch */
1240 case 0x0124:
1241 case 0x0135:
1242 /* events on this handle are reported when the
1243 * switch changes position or for battery
1244 * events. We'll notify both of them but only
1245 * update the rfkill device status when the
1246 * switch is moved.
1247 */
1248 ev_type = KILLSWITCH;
1249 sony_call_snc_handle(handle, 0x0100, &result);
1250 real_ev = result & 0x03;
1251
1252 /* hw switch event */
1253 if (real_ev == 1)
1254 sony_nc_rfkill_update();
1255
1256 break;
1257
1258 case 0x0128:
1259 case 0x0146:
1260 /* Hybrid GFX switching */
1261 sony_call_snc_handle(handle, 0x0000, &result);
1262 dprintk("GFX switch event received (reason: %s)\n",
1263 (result == 0x1) ? "switch change" :
1264 (result == 0x2) ? "output switch" :
1265 (result == 0x3) ? "output switch" :
1266 "");
1267
1268 ev_type = GFX_SWITCH;
1269 real_ev = __sony_nc_gfx_switch_status_get();
1270 break;
1271
1272 case 0x015B:
1273 /* Hybrid GFX switching SVS151290S */
1274 ev_type = GFX_SWITCH;
1275 real_ev = __sony_nc_gfx_switch_status_get();
1276 break;
1277 default:
1278 dprintk("Unknown event 0x%x for handle 0x%x\n",
1279 event, handle);
1280 break;
1281 }
1282
1283 /* clear the event (and the event reason when present) */
1284 arg = 1 << offset;
1285 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1286
1287 } else {
1288 /* old style event */
1289 ev_type = HOTKEY;
1290 sony_laptop_report_input_event(real_ev);
1291 }
1292 acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1293 dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1294 }
1295
1296 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1297 void *context, void **return_value)
1298 {
1299 struct acpi_device_info *info;
1300
1301 if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1302 pr_warn("method: name: %4.4s, args %X\n",
1303 (char *)&info->name, info->param_count);
1304
1305 kfree(info);
1306 }
1307
1308 return AE_OK;
1309 }
1310
1311 /*
1312 * ACPI device
1313 */
1314 static void sony_nc_function_setup(struct acpi_device *device,
1315 struct platform_device *pf_device)
1316 {
1317 unsigned int i, result, bitmask, arg;
1318
1319 if (!handles)
1320 return;
1321
1322 /* setup found handles here */
1323 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1324 unsigned int handle = handles->cap[i];
1325
1326 if (!handle)
1327 continue;
1328
1329 dprintk("setting up handle 0x%.4x\n", handle);
1330
1331 switch (handle) {
1332 case 0x0100:
1333 case 0x0101:
1334 case 0x0127:
1335 /* setup hotkeys */
1336 sony_call_snc_handle(handle, 0, &result);
1337 break;
1338 case 0x0102:
1339 /* setup hotkeys */
1340 sony_call_snc_handle(handle, 0x100, &result);
1341 break;
1342 case 0x0105:
1343 case 0x0148:
1344 /* touchpad enable/disable */
1345 result = sony_nc_touchpad_setup(pf_device, handle);
1346 if (result)
1347 pr_err("couldn't set up touchpad control function (%d)\n",
1348 result);
1349 break;
1350 case 0x0115:
1351 case 0x0136:
1352 case 0x013f:
1353 result = sony_nc_battery_care_setup(pf_device, handle);
1354 if (result)
1355 pr_err("couldn't set up battery care function (%d)\n",
1356 result);
1357 break;
1358 case 0x0119:
1359 case 0x015D:
1360 result = sony_nc_lid_resume_setup(pf_device, handle);
1361 if (result)
1362 pr_err("couldn't set up lid resume function (%d)\n",
1363 result);
1364 break;
1365 case 0x0122:
1366 result = sony_nc_thermal_setup(pf_device);
1367 if (result)
1368 pr_err("couldn't set up thermal profile function (%d)\n",
1369 result);
1370 break;
1371 case 0x0128:
1372 case 0x0146:
1373 case 0x015B:
1374 result = sony_nc_gfx_switch_setup(pf_device, handle);
1375 if (result)
1376 pr_err("couldn't set up GFX Switch status (%d)\n",
1377 result);
1378 break;
1379 case 0x0131:
1380 result = sony_nc_highspeed_charging_setup(pf_device);
1381 if (result)
1382 pr_err("couldn't set up high speed charging function (%d)\n",
1383 result);
1384 break;
1385 case 0x0124:
1386 case 0x0135:
1387 result = sony_nc_rfkill_setup(device, handle);
1388 if (result)
1389 pr_err("couldn't set up rfkill support (%d)\n",
1390 result);
1391 break;
1392 case 0x0137:
1393 case 0x0143:
1394 case 0x014b:
1395 case 0x014c:
1396 case 0x0153:
1397 case 0x0163:
1398 result = sony_nc_kbd_backlight_setup(pf_device, handle);
1399 if (result)
1400 pr_err("couldn't set up keyboard backlight function (%d)\n",
1401 result);
1402 break;
1403 case 0x0121:
1404 result = sony_nc_lowbatt_setup(pf_device);
1405 if (result)
1406 pr_err("couldn't set up low battery function (%d)\n",
1407 result);
1408 break;
1409 case 0x0149:
1410 result = sony_nc_fanspeed_setup(pf_device);
1411 if (result)
1412 pr_err("couldn't set up fan speed function (%d)\n",
1413 result);
1414 break;
1415 case 0x0155:
1416 result = sony_nc_usb_charge_setup(pf_device);
1417 if (result)
1418 pr_err("couldn't set up USB charge support (%d)\n",
1419 result);
1420 break;
1421 case 0x011D:
1422 result = sony_nc_panelid_setup(pf_device);
1423 if (result)
1424 pr_err("couldn't set up panel ID function (%d)\n",
1425 result);
1426 break;
1427 case 0x0168:
1428 result = sony_nc_smart_conn_setup(pf_device);
1429 if (result)
1430 pr_err("couldn't set up smart connect support (%d)\n",
1431 result);
1432 break;
1433 default:
1434 continue;
1435 }
1436 }
1437
1438 /* Enable all events */
1439 arg = 0x10;
1440 if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1441 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1442 &result);
1443 }
1444
1445 static void sony_nc_function_cleanup(struct platform_device *pd)
1446 {
1447 unsigned int i, result, bitmask, handle;
1448
1449 /* get enabled events and disable them */
1450 sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1451 sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1452
1453 /* cleanup handles here */
1454 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1455
1456 handle = handles->cap[i];
1457
1458 if (!handle)
1459 continue;
1460
1461 switch (handle) {
1462 case 0x0105:
1463 case 0x0148:
1464 sony_nc_touchpad_cleanup(pd);
1465 break;
1466 case 0x0115:
1467 case 0x0136:
1468 case 0x013f:
1469 sony_nc_battery_care_cleanup(pd);
1470 break;
1471 case 0x0119:
1472 case 0x015D:
1473 sony_nc_lid_resume_cleanup(pd);
1474 break;
1475 case 0x0122:
1476 sony_nc_thermal_cleanup(pd);
1477 break;
1478 case 0x0128:
1479 case 0x0146:
1480 case 0x015B:
1481 sony_nc_gfx_switch_cleanup(pd);
1482 break;
1483 case 0x0131:
1484 sony_nc_highspeed_charging_cleanup(pd);
1485 break;
1486 case 0x0124:
1487 case 0x0135:
1488 sony_nc_rfkill_cleanup();
1489 break;
1490 case 0x0137:
1491 case 0x0143:
1492 case 0x014b:
1493 case 0x014c:
1494 case 0x0153:
1495 case 0x0163:
1496 sony_nc_kbd_backlight_cleanup(pd, handle);
1497 break;
1498 case 0x0121:
1499 sony_nc_lowbatt_cleanup(pd);
1500 break;
1501 case 0x0149:
1502 sony_nc_fanspeed_cleanup(pd);
1503 break;
1504 case 0x0155:
1505 sony_nc_usb_charge_cleanup(pd);
1506 break;
1507 case 0x011D:
1508 sony_nc_panelid_cleanup(pd);
1509 break;
1510 case 0x0168:
1511 sony_nc_smart_conn_cleanup(pd);
1512 break;
1513 default:
1514 continue;
1515 }
1516 }
1517
1518 /* finally cleanup the handles list */
1519 sony_nc_handles_cleanup(pd);
1520 }
1521
1522 #ifdef CONFIG_PM_SLEEP
1523 static void sony_nc_function_resume(void)
1524 {
1525 unsigned int i, result, bitmask, arg;
1526
1527 dprintk("Resuming SNC device\n");
1528
1529 for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1530 unsigned int handle = handles->cap[i];
1531
1532 if (!handle)
1533 continue;
1534
1535 switch (handle) {
1536 case 0x0100:
1537 case 0x0101:
1538 case 0x0127:
1539 /* re-enable hotkeys */
1540 sony_call_snc_handle(handle, 0, &result);
1541 break;
1542 case 0x0102:
1543 /* re-enable hotkeys */
1544 sony_call_snc_handle(handle, 0x100, &result);
1545 break;
1546 case 0x0122:
1547 sony_nc_thermal_resume();
1548 break;
1549 case 0x0124:
1550 case 0x0135:
1551 sony_nc_rfkill_update();
1552 break;
1553 default:
1554 continue;
1555 }
1556 }
1557
1558 /* Enable all events */
1559 arg = 0x10;
1560 if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1561 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1562 &result);
1563 }
1564
1565 static int sony_nc_resume(struct device *dev)
1566 {
1567 struct sony_nc_value *item;
1568
1569 for (item = sony_nc_values; item->name; item++) {
1570 int ret;
1571
1572 if (!item->valid)
1573 continue;
1574 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1575 &item->value, NULL);
1576 if (ret < 0) {
1577 pr_err("%s: %d\n", __func__, ret);
1578 break;
1579 }
1580 }
1581
1582 if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1583 int arg = 1;
1584 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1585 dprintk("ECON Method failed\n");
1586 }
1587
1588 if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1589 sony_nc_function_resume();
1590
1591 return 0;
1592 }
1593 #endif
1594
1595 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1596
1597 static void sony_nc_rfkill_cleanup(void)
1598 {
1599 int i;
1600
1601 for (i = 0; i < N_SONY_RFKILL; i++) {
1602 if (sony_rfkill_devices[i]) {
1603 rfkill_unregister(sony_rfkill_devices[i]);
1604 rfkill_destroy(sony_rfkill_devices[i]);
1605 }
1606 }
1607 }
1608
1609 static int sony_nc_rfkill_set(void *data, bool blocked)
1610 {
1611 int result;
1612 int argument = sony_rfkill_address[(long) data] + 0x100;
1613
1614 if (!blocked)
1615 argument |= 0x070000;
1616
1617 return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1618 }
1619
1620 static const struct rfkill_ops sony_rfkill_ops = {
1621 .set_block = sony_nc_rfkill_set,
1622 };
1623
1624 static int sony_nc_setup_rfkill(struct acpi_device *device,
1625 enum sony_nc_rfkill nc_type)
1626 {
1627 int err = 0;
1628 struct rfkill *rfk;
1629 enum rfkill_type type;
1630 const char *name;
1631 int result;
1632 bool hwblock, swblock;
1633
1634 switch (nc_type) {
1635 case SONY_WIFI:
1636 type = RFKILL_TYPE_WLAN;
1637 name = "sony-wifi";
1638 break;
1639 case SONY_BLUETOOTH:
1640 type = RFKILL_TYPE_BLUETOOTH;
1641 name = "sony-bluetooth";
1642 break;
1643 case SONY_WWAN:
1644 type = RFKILL_TYPE_WWAN;
1645 name = "sony-wwan";
1646 break;
1647 case SONY_WIMAX:
1648 type = RFKILL_TYPE_WIMAX;
1649 name = "sony-wimax";
1650 break;
1651 default:
1652 return -EINVAL;
1653 }
1654
1655 rfk = rfkill_alloc(name, &device->dev, type,
1656 &sony_rfkill_ops, (void *)nc_type);
1657 if (!rfk)
1658 return -ENOMEM;
1659
1660 if (sony_call_snc_handle(sony_rfkill_handle, 0x200, &result) < 0) {
1661 rfkill_destroy(rfk);
1662 return -1;
1663 }
1664 hwblock = !(result & 0x1);
1665
1666 if (sony_call_snc_handle(sony_rfkill_handle,
1667 sony_rfkill_address[nc_type],
1668 &result) < 0) {
1669 rfkill_destroy(rfk);
1670 return -1;
1671 }
1672 swblock = !(result & 0x2);
1673
1674 rfkill_init_sw_state(rfk, swblock);
1675 rfkill_set_hw_state(rfk, hwblock);
1676
1677 err = rfkill_register(rfk);
1678 if (err) {
1679 rfkill_destroy(rfk);
1680 return err;
1681 }
1682 sony_rfkill_devices[nc_type] = rfk;
1683 return err;
1684 }
1685
1686 static void sony_nc_rfkill_update(void)
1687 {
1688 enum sony_nc_rfkill i;
1689 int result;
1690 bool hwblock;
1691
1692 sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1693 hwblock = !(result & 0x1);
1694
1695 for (i = 0; i < N_SONY_RFKILL; i++) {
1696 int argument = sony_rfkill_address[i];
1697
1698 if (!sony_rfkill_devices[i])
1699 continue;
1700
1701 if (hwblock) {
1702 if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1703 /* we already know we're blocked */
1704 }
1705 continue;
1706 }
1707
1708 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1709 rfkill_set_states(sony_rfkill_devices[i],
1710 !(result & 0x2), false);
1711 }
1712 }
1713
1714 static int sony_nc_rfkill_setup(struct acpi_device *device,
1715 unsigned int handle)
1716 {
1717 u64 offset;
1718 int i;
1719 unsigned char buffer[32] = { 0 };
1720
1721 offset = sony_find_snc_handle(handle);
1722 sony_rfkill_handle = handle;
1723
1724 i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1725 32);
1726 if (i < 0)
1727 return i;
1728
1729 /* The buffer is filled with magic numbers describing the devices
1730 * available, 0xff terminates the enumeration.
1731 * Known codes:
1732 * 0x00 WLAN
1733 * 0x10 BLUETOOTH
1734 * 0x20 WWAN GPRS-EDGE
1735 * 0x21 WWAN HSDPA
1736 * 0x22 WWAN EV-DO
1737 * 0x23 WWAN GPS
1738 * 0x25 Gobi WWAN no GPS
1739 * 0x26 Gobi WWAN + GPS
1740 * 0x28 Gobi WWAN no GPS
1741 * 0x29 Gobi WWAN + GPS
1742 * 0x30 WIMAX
1743 * 0x50 Gobi WWAN no GPS
1744 * 0x51 Gobi WWAN + GPS
1745 * 0x70 no SIM card slot
1746 * 0x71 SIM card slot
1747 */
1748 for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1749
1750 if (buffer[i] == 0xff)
1751 break;
1752
1753 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1754
1755 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1756 sony_nc_setup_rfkill(device, SONY_WIFI);
1757
1758 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1759 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1760
1761 if (((0xf0 & buffer[i]) == 0x20 ||
1762 (0xf0 & buffer[i]) == 0x50) &&
1763 !sony_rfkill_devices[SONY_WWAN])
1764 sony_nc_setup_rfkill(device, SONY_WWAN);
1765
1766 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1767 sony_nc_setup_rfkill(device, SONY_WIMAX);
1768 }
1769 return 0;
1770 }
1771
1772 /* Keyboard backlight feature */
1773 struct kbd_backlight {
1774 unsigned int handle;
1775 unsigned int base;
1776 unsigned int mode;
1777 unsigned int timeout;
1778 unsigned int has_timeout;
1779 struct device_attribute mode_attr;
1780 struct device_attribute timeout_attr;
1781 };
1782
1783 static struct kbd_backlight *kbdbl_ctl;
1784
1785 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1786 {
1787 int result;
1788
1789 if (value > 2)
1790 return -EINVAL;
1791
1792 if (sony_call_snc_handle(kbdbl_ctl->handle,
1793 (value << 0x10) | (kbdbl_ctl->base), &result))
1794 return -EIO;
1795
1796 /* Try to turn the light on/off immediately */
1797 if (value != 1)
1798 sony_call_snc_handle(kbdbl_ctl->handle,
1799 (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1800 &result);
1801
1802 kbdbl_ctl->mode = value;
1803
1804 return 0;
1805 }
1806
1807 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1808 struct device_attribute *attr,
1809 const char *buffer, size_t count)
1810 {
1811 int ret = 0;
1812 unsigned long value;
1813
1814 if (count > 31)
1815 return -EINVAL;
1816
1817 if (kstrtoul(buffer, 10, &value))
1818 return -EINVAL;
1819
1820 ret = __sony_nc_kbd_backlight_mode_set(value);
1821 if (ret < 0)
1822 return ret;
1823
1824 return count;
1825 }
1826
1827 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1828 struct device_attribute *attr, char *buffer)
1829 {
1830 ssize_t count = 0;
1831 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1832 return count;
1833 }
1834
1835 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1836 {
1837 int result;
1838
1839 if (value > 3)
1840 return -EINVAL;
1841
1842 if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1843 (kbdbl_ctl->base + 0x200), &result))
1844 return -EIO;
1845
1846 kbdbl_ctl->timeout = value;
1847
1848 return 0;
1849 }
1850
1851 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1852 struct device_attribute *attr,
1853 const char *buffer, size_t count)
1854 {
1855 int ret = 0;
1856 unsigned long value;
1857
1858 if (count > 31)
1859 return -EINVAL;
1860
1861 if (kstrtoul(buffer, 10, &value))
1862 return -EINVAL;
1863
1864 ret = __sony_nc_kbd_backlight_timeout_set(value);
1865 if (ret < 0)
1866 return ret;
1867
1868 return count;
1869 }
1870
1871 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1872 struct device_attribute *attr, char *buffer)
1873 {
1874 ssize_t count = 0;
1875 count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1876 return count;
1877 }
1878
1879 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1880 unsigned int handle)
1881 {
1882 int result;
1883 int probe_base = 0;
1884 int ctl_base = 0;
1885 int ret = 0;
1886
1887 if (kbdbl_ctl) {
1888 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1889 handle, kbdbl_ctl->handle);
1890 return -EBUSY;
1891 }
1892
1893 /* verify the kbd backlight presence, some of these handles are not used
1894 * for keyboard backlight only
1895 */
1896 switch (handle) {
1897 case 0x0153:
1898 probe_base = 0x0;
1899 ctl_base = 0x0;
1900 break;
1901 case 0x0137:
1902 probe_base = 0x0B00;
1903 ctl_base = 0x0C00;
1904 break;
1905 default:
1906 probe_base = 0x0100;
1907 ctl_base = 0x4000;
1908 break;
1909 }
1910
1911 ret = sony_call_snc_handle(handle, probe_base, &result);
1912 if (ret)
1913 return ret;
1914
1915 if ((handle == 0x0137 && !(result & 0x02)) ||
1916 !(result & 0x01)) {
1917 dprintk("no backlight keyboard found\n");
1918 return 0;
1919 }
1920
1921 kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1922 if (!kbdbl_ctl)
1923 return -ENOMEM;
1924
1925 kbdbl_ctl->mode = kbd_backlight;
1926 kbdbl_ctl->timeout = kbd_backlight_timeout;
1927 kbdbl_ctl->handle = handle;
1928 kbdbl_ctl->base = ctl_base;
1929 /* Some models do not allow timeout control */
1930 kbdbl_ctl->has_timeout = handle != 0x0153;
1931
1932 sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1933 kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1934 kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1935 kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1936 kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1937
1938 ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1939 if (ret)
1940 goto outkzalloc;
1941
1942 __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1943
1944 if (kbdbl_ctl->has_timeout) {
1945 sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1946 kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1947 kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1948 kbdbl_ctl->timeout_attr.show =
1949 sony_nc_kbd_backlight_timeout_show;
1950 kbdbl_ctl->timeout_attr.store =
1951 sony_nc_kbd_backlight_timeout_store;
1952
1953 ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1954 if (ret)
1955 goto outmode;
1956
1957 __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1958 }
1959
1960
1961 return 0;
1962
1963 outmode:
1964 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1965 outkzalloc:
1966 kfree(kbdbl_ctl);
1967 kbdbl_ctl = NULL;
1968 return ret;
1969 }
1970
1971 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1972 unsigned int handle)
1973 {
1974 if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1975 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1976 if (kbdbl_ctl->has_timeout)
1977 device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1978 kfree(kbdbl_ctl);
1979 kbdbl_ctl = NULL;
1980 }
1981 }
1982
1983 struct battery_care_control {
1984 struct device_attribute attrs[2];
1985 unsigned int handle;
1986 };
1987 static struct battery_care_control *bcare_ctl;
1988
1989 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1990 struct device_attribute *attr,
1991 const char *buffer, size_t count)
1992 {
1993 unsigned int result, cmd;
1994 unsigned long value;
1995
1996 if (count > 31)
1997 return -EINVAL;
1998
1999 if (kstrtoul(buffer, 10, &value))
2000 return -EINVAL;
2001
2002 /* limit values (2 bits):
2003 * 00 - none
2004 * 01 - 80%
2005 * 10 - 50%
2006 * 11 - 100%
2007 *
2008 * bit 0: 0 disable BCL, 1 enable BCL
2009 * bit 1: 1 tell to store the battery limit (see bits 6,7) too
2010 * bits 2,3: reserved
2011 * bits 4,5: store the limit into the EC
2012 * bits 6,7: store the limit into the battery
2013 */
2014 cmd = 0;
2015
2016 if (value > 0) {
2017 if (value <= 50)
2018 cmd = 0x20;
2019
2020 else if (value <= 80)
2021 cmd = 0x10;
2022
2023 else if (value <= 100)
2024 cmd = 0x30;
2025
2026 else
2027 return -EINVAL;
2028
2029 /*
2030 * handle 0x0115 should allow storing on battery too;
2031 * handle 0x0136 same as 0x0115 + health status;
2032 * handle 0x013f, same as 0x0136 but no storing on the battery
2033 */
2034 if (bcare_ctl->handle != 0x013f)
2035 cmd = cmd | (cmd << 2);
2036
2037 cmd = (cmd | 0x1) << 0x10;
2038 }
2039
2040 if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2041 return -EIO;
2042
2043 return count;
2044 }
2045
2046 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2047 struct device_attribute *attr, char *buffer)
2048 {
2049 unsigned int result, status;
2050
2051 if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2052 return -EIO;
2053
2054 status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2055 switch (status) {
2056 case 1:
2057 status = 80;
2058 break;
2059 case 2:
2060 status = 50;
2061 break;
2062 case 3:
2063 status = 100;
2064 break;
2065 default:
2066 status = 0;
2067 break;
2068 }
2069
2070 return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2071 }
2072
2073 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2074 struct device_attribute *attr, char *buffer)
2075 {
2076 ssize_t count = 0;
2077 unsigned int health;
2078
2079 if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2080 return -EIO;
2081
2082 count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2083
2084 return count;
2085 }
2086
2087 static int sony_nc_battery_care_setup(struct platform_device *pd,
2088 unsigned int handle)
2089 {
2090 int ret = 0;
2091
2092 bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2093 if (!bcare_ctl)
2094 return -ENOMEM;
2095
2096 bcare_ctl->handle = handle;
2097
2098 sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2099 bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2100 bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2101 bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2102 bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2103
2104 ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2105 if (ret)
2106 goto outkzalloc;
2107
2108 /* 0x0115 is for models with no health reporting capability */
2109 if (handle == 0x0115)
2110 return 0;
2111
2112 sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2113 bcare_ctl->attrs[1].attr.name = "battery_care_health";
2114 bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2115 bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2116
2117 ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2118 if (ret)
2119 goto outlimiter;
2120
2121 return 0;
2122
2123 outlimiter:
2124 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2125
2126 outkzalloc:
2127 kfree(bcare_ctl);
2128 bcare_ctl = NULL;
2129
2130 return ret;
2131 }
2132
2133 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2134 {
2135 if (bcare_ctl) {
2136 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2137 if (bcare_ctl->handle != 0x0115)
2138 device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2139
2140 kfree(bcare_ctl);
2141 bcare_ctl = NULL;
2142 }
2143 }
2144
2145 struct snc_thermal_ctrl {
2146 unsigned int mode;
2147 unsigned int profiles;
2148 struct device_attribute mode_attr;
2149 struct device_attribute profiles_attr;
2150 };
2151 static struct snc_thermal_ctrl *th_handle;
2152
2153 #define THM_PROFILE_MAX 3
2154 static const char * const snc_thermal_profiles[] = {
2155 "balanced",
2156 "silent",
2157 "performance"
2158 };
2159
2160 static int sony_nc_thermal_mode_set(unsigned short mode)
2161 {
2162 unsigned int result;
2163
2164 /* the thermal profile seems to be a two bit bitmask:
2165 * lsb -> silent
2166 * msb -> performance
2167 * no bit set is the normal operation and is always valid
2168 * Some vaio models only have "balanced" and "performance"
2169 */
2170 if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2171 return -EINVAL;
2172
2173 if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2174 return -EIO;
2175
2176 th_handle->mode = mode;
2177
2178 return 0;
2179 }
2180
2181 static int sony_nc_thermal_mode_get(void)
2182 {
2183 unsigned int result;
2184
2185 if (sony_call_snc_handle(0x0122, 0x0100, &result))
2186 return -EIO;
2187
2188 return result & 0xff;
2189 }
2190
2191 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2192 struct device_attribute *attr, char *buffer)
2193 {
2194 short cnt;
2195 size_t idx = 0;
2196
2197 for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2198 if (!cnt || (th_handle->profiles & cnt))
2199 idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2200 snc_thermal_profiles[cnt]);
2201 }
2202 idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2203
2204 return idx;
2205 }
2206
2207 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2208 struct device_attribute *attr,
2209 const char *buffer, size_t count)
2210 {
2211 unsigned short cmd;
2212 size_t len = count;
2213
2214 if (count == 0)
2215 return -EINVAL;
2216
2217 /* skip the newline if present */
2218 if (buffer[len - 1] == '\n')
2219 len--;
2220
2221 for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2222 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2223 break;
2224
2225 if (sony_nc_thermal_mode_set(cmd))
2226 return -EIO;
2227
2228 return count;
2229 }
2230
2231 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2232 struct device_attribute *attr, char *buffer)
2233 {
2234 ssize_t count = 0;
2235 int mode = sony_nc_thermal_mode_get();
2236
2237 if (mode < 0)
2238 return mode;
2239
2240 count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2241
2242 return count;
2243 }
2244
2245 static int sony_nc_thermal_setup(struct platform_device *pd)
2246 {
2247 int ret = 0;
2248 th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2249 if (!th_handle)
2250 return -ENOMEM;
2251
2252 ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2253 if (ret) {
2254 pr_warn("couldn't to read the thermal profiles\n");
2255 goto outkzalloc;
2256 }
2257
2258 ret = sony_nc_thermal_mode_get();
2259 if (ret < 0) {
2260 pr_warn("couldn't to read the current thermal profile");
2261 goto outkzalloc;
2262 }
2263 th_handle->mode = ret;
2264
2265 sysfs_attr_init(&th_handle->profiles_attr.attr);
2266 th_handle->profiles_attr.attr.name = "thermal_profiles";
2267 th_handle->profiles_attr.attr.mode = S_IRUGO;
2268 th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2269
2270 sysfs_attr_init(&th_handle->mode_attr.attr);
2271 th_handle->mode_attr.attr.name = "thermal_control";
2272 th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2273 th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2274 th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2275
2276 ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2277 if (ret)
2278 goto outkzalloc;
2279
2280 ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2281 if (ret)
2282 goto outprofiles;
2283
2284 return 0;
2285
2286 outprofiles:
2287 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2288 outkzalloc:
2289 kfree(th_handle);
2290 th_handle = NULL;
2291 return ret;
2292 }
2293
2294 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2295 {
2296 if (th_handle) {
2297 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2298 device_remove_file(&pd->dev, &th_handle->mode_attr);
2299 kfree(th_handle);
2300 th_handle = NULL;
2301 }
2302 }
2303
2304 #ifdef CONFIG_PM_SLEEP
2305 static void sony_nc_thermal_resume(void)
2306 {
2307 unsigned int status = sony_nc_thermal_mode_get();
2308
2309 if (status != th_handle->mode)
2310 sony_nc_thermal_mode_set(th_handle->mode);
2311 }
2312 #endif
2313
2314 /* resume on LID open */
2315 #define LID_RESUME_S5 0
2316 #define LID_RESUME_S4 1
2317 #define LID_RESUME_S3 2
2318 #define LID_RESUME_MAX 3
2319 struct snc_lid_resume_control {
2320 struct device_attribute attrs[LID_RESUME_MAX];
2321 unsigned int status;
2322 int handle;
2323 };
2324 static struct snc_lid_resume_control *lid_ctl;
2325
2326 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2327 struct device_attribute *attr,
2328 const char *buffer, size_t count)
2329 {
2330 unsigned int result;
2331 unsigned long value;
2332 unsigned int pos = LID_RESUME_S5;
2333 if (count > 31)
2334 return -EINVAL;
2335
2336 if (kstrtoul(buffer, 10, &value) || value > 1)
2337 return -EINVAL;
2338
2339 /* the value we have to write to SNC is a bitmask:
2340 * +--------------+
2341 * | S3 | S4 | S5 |
2342 * +--------------+
2343 * 2 1 0
2344 */
2345 while (pos < LID_RESUME_MAX) {
2346 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2347 break;
2348 pos++;
2349 }
2350 if (pos == LID_RESUME_MAX)
2351 return -EINVAL;
2352
2353 if (value)
2354 value = lid_ctl->status | (1 << pos);
2355 else
2356 value = lid_ctl->status & ~(1 << pos);
2357
2358 if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2359 &result))
2360 return -EIO;
2361
2362 lid_ctl->status = value;
2363
2364 return count;
2365 }
2366
2367 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2368 struct device_attribute *attr,
2369 char *buffer)
2370 {
2371 unsigned int pos = LID_RESUME_S5;
2372
2373 while (pos < LID_RESUME_MAX) {
2374 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2375 return snprintf(buffer, PAGE_SIZE, "%d\n",
2376 (lid_ctl->status >> pos) & 0x01);
2377 pos++;
2378 }
2379 return -EINVAL;
2380 }
2381
2382 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2383 unsigned int handle)
2384 {
2385 unsigned int result;
2386 int i;
2387
2388 if (sony_call_snc_handle(handle, 0x0000, &result))
2389 return -EIO;
2390
2391 lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2392 if (!lid_ctl)
2393 return -ENOMEM;
2394
2395 lid_ctl->status = result & 0x7;
2396 lid_ctl->handle = handle;
2397
2398 sysfs_attr_init(&lid_ctl->attrs[0].attr);
2399 lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2400 lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2401 lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2402 lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2403
2404 if (handle == 0x0119) {
2405 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2406 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2407 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2408 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2409 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2410
2411 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2412 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2413 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2414 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2415 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2416 }
2417 for (i = 0; i < LID_RESUME_MAX &&
2418 lid_ctl->attrs[i].attr.name; i++) {
2419 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2420 if (result)
2421 goto liderror;
2422 }
2423
2424 return 0;
2425
2426 liderror:
2427 for (i--; i >= 0; i--)
2428 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2429
2430 kfree(lid_ctl);
2431 lid_ctl = NULL;
2432
2433 return result;
2434 }
2435
2436 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2437 {
2438 int i;
2439
2440 if (lid_ctl) {
2441 for (i = 0; i < LID_RESUME_MAX; i++) {
2442 if (!lid_ctl->attrs[i].attr.name)
2443 break;
2444
2445 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2446 }
2447
2448 kfree(lid_ctl);
2449 lid_ctl = NULL;
2450 }
2451 }
2452
2453 /* GFX Switch position */
2454 enum gfx_switch {
2455 SPEED,
2456 STAMINA,
2457 AUTO
2458 };
2459 struct snc_gfx_switch_control {
2460 struct device_attribute attr;
2461 unsigned int handle;
2462 };
2463 static struct snc_gfx_switch_control *gfxs_ctl;
2464
2465 /* returns 0 for speed, 1 for stamina */
2466 static int __sony_nc_gfx_switch_status_get(void)
2467 {
2468 unsigned int result;
2469
2470 if (sony_call_snc_handle(gfxs_ctl->handle,
2471 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2472 &result))
2473 return -EIO;
2474
2475 switch (gfxs_ctl->handle) {
2476 case 0x0146:
2477 /* 1: discrete GFX (speed)
2478 * 0: integrated GFX (stamina)
2479 */
2480 return result & 0x1 ? SPEED : STAMINA;
2481 break;
2482 case 0x015B:
2483 /* 0: discrete GFX (speed)
2484 * 1: integrated GFX (stamina)
2485 */
2486 return result & 0x1 ? STAMINA : SPEED;
2487 break;
2488 case 0x0128:
2489 /* it's a more elaborated bitmask, for now:
2490 * 2: integrated GFX (stamina)
2491 * 0: discrete GFX (speed)
2492 */
2493 dprintk("GFX Status: 0x%x\n", result);
2494 return result & 0x80 ? AUTO :
2495 result & 0x02 ? STAMINA : SPEED;
2496 break;
2497 }
2498 return -EINVAL;
2499 }
2500
2501 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2502 struct device_attribute *attr,
2503 char *buffer)
2504 {
2505 int pos = __sony_nc_gfx_switch_status_get();
2506
2507 if (pos < 0)
2508 return pos;
2509
2510 return snprintf(buffer, PAGE_SIZE, "%s\n",
2511 pos == SPEED ? "speed" :
2512 pos == STAMINA ? "stamina" :
2513 pos == AUTO ? "auto" : "unknown");
2514 }
2515
2516 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2517 unsigned int handle)
2518 {
2519 unsigned int result;
2520
2521 gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2522 if (!gfxs_ctl)
2523 return -ENOMEM;
2524
2525 gfxs_ctl->handle = handle;
2526
2527 sysfs_attr_init(&gfxs_ctl->attr.attr);
2528 gfxs_ctl->attr.attr.name = "gfx_switch_status";
2529 gfxs_ctl->attr.attr.mode = S_IRUGO;
2530 gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2531
2532 result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2533 if (result)
2534 goto gfxerror;
2535
2536 return 0;
2537
2538 gfxerror:
2539 kfree(gfxs_ctl);
2540 gfxs_ctl = NULL;
2541
2542 return result;
2543 }
2544
2545 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2546 {
2547 if (gfxs_ctl) {
2548 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2549
2550 kfree(gfxs_ctl);
2551 gfxs_ctl = NULL;
2552 }
2553 }
2554
2555 /* High speed charging function */
2556 static struct device_attribute *hsc_handle;
2557
2558 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2559 struct device_attribute *attr,
2560 const char *buffer, size_t count)
2561 {
2562 unsigned int result;
2563 unsigned long value;
2564
2565 if (count > 31)
2566 return -EINVAL;
2567
2568 if (kstrtoul(buffer, 10, &value) || value > 1)
2569 return -EINVAL;
2570
2571 if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2572 return -EIO;
2573
2574 return count;
2575 }
2576
2577 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2578 struct device_attribute *attr, char *buffer)
2579 {
2580 unsigned int result;
2581
2582 if (sony_call_snc_handle(0x0131, 0x0100, &result))
2583 return -EIO;
2584
2585 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2586 }
2587
2588 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2589 {
2590 unsigned int result;
2591
2592 if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2593 /* some models advertise the handle but have no implementation
2594 * for it
2595 */
2596 pr_info("No High Speed Charging capability found\n");
2597 return 0;
2598 }
2599
2600 hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2601 if (!hsc_handle)
2602 return -ENOMEM;
2603
2604 sysfs_attr_init(&hsc_handle->attr);
2605 hsc_handle->attr.name = "battery_highspeed_charging";
2606 hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2607 hsc_handle->show = sony_nc_highspeed_charging_show;
2608 hsc_handle->store = sony_nc_highspeed_charging_store;
2609
2610 result = device_create_file(&pd->dev, hsc_handle);
2611 if (result) {
2612 kfree(hsc_handle);
2613 hsc_handle = NULL;
2614 return result;
2615 }
2616
2617 return 0;
2618 }
2619
2620 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2621 {
2622 if (hsc_handle) {
2623 device_remove_file(&pd->dev, hsc_handle);
2624 kfree(hsc_handle);
2625 hsc_handle = NULL;
2626 }
2627 }
2628
2629 /* low battery function */
2630 static struct device_attribute *lowbatt_handle;
2631
2632 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2633 struct device_attribute *attr,
2634 const char *buffer, size_t count)
2635 {
2636 unsigned int result;
2637 unsigned long value;
2638
2639 if (count > 31)
2640 return -EINVAL;
2641
2642 if (kstrtoul(buffer, 10, &value) || value > 1)
2643 return -EINVAL;
2644
2645 if (sony_call_snc_handle(0x0121, value << 8, &result))
2646 return -EIO;
2647
2648 return count;
2649 }
2650
2651 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2652 struct device_attribute *attr, char *buffer)
2653 {
2654 unsigned int result;
2655
2656 if (sony_call_snc_handle(0x0121, 0x0200, &result))
2657 return -EIO;
2658
2659 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2660 }
2661
2662 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2663 {
2664 unsigned int result;
2665
2666 lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2667 if (!lowbatt_handle)
2668 return -ENOMEM;
2669
2670 sysfs_attr_init(&lowbatt_handle->attr);
2671 lowbatt_handle->attr.name = "lowbatt_hibernate";
2672 lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2673 lowbatt_handle->show = sony_nc_lowbatt_show;
2674 lowbatt_handle->store = sony_nc_lowbatt_store;
2675
2676 result = device_create_file(&pd->dev, lowbatt_handle);
2677 if (result) {
2678 kfree(lowbatt_handle);
2679 lowbatt_handle = NULL;
2680 return result;
2681 }
2682
2683 return 0;
2684 }
2685
2686 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2687 {
2688 if (lowbatt_handle) {
2689 device_remove_file(&pd->dev, lowbatt_handle);
2690 kfree(lowbatt_handle);
2691 lowbatt_handle = NULL;
2692 }
2693 }
2694
2695 /* fan speed function */
2696 static struct device_attribute *fan_handle, *hsf_handle;
2697
2698 static ssize_t sony_nc_hsfan_store(struct device *dev,
2699 struct device_attribute *attr,
2700 const char *buffer, size_t count)
2701 {
2702 unsigned int result;
2703 unsigned long value;
2704
2705 if (count > 31)
2706 return -EINVAL;
2707
2708 if (kstrtoul(buffer, 10, &value) || value > 1)
2709 return -EINVAL;
2710
2711 if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2712 return -EIO;
2713
2714 return count;
2715 }
2716
2717 static ssize_t sony_nc_hsfan_show(struct device *dev,
2718 struct device_attribute *attr, char *buffer)
2719 {
2720 unsigned int result;
2721
2722 if (sony_call_snc_handle(0x0149, 0x0100, &result))
2723 return -EIO;
2724
2725 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2726 }
2727
2728 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2729 struct device_attribute *attr, char *buffer)
2730 {
2731 unsigned int result;
2732
2733 if (sony_call_snc_handle(0x0149, 0x0300, &result))
2734 return -EIO;
2735
2736 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2737 }
2738
2739 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2740 {
2741 unsigned int result;
2742
2743 fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2744 if (!fan_handle)
2745 return -ENOMEM;
2746
2747 hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2748 if (!hsf_handle) {
2749 result = -ENOMEM;
2750 goto out_hsf_handle_alloc;
2751 }
2752
2753 sysfs_attr_init(&fan_handle->attr);
2754 fan_handle->attr.name = "fanspeed";
2755 fan_handle->attr.mode = S_IRUGO;
2756 fan_handle->show = sony_nc_fanspeed_show;
2757 fan_handle->store = NULL;
2758
2759 sysfs_attr_init(&hsf_handle->attr);
2760 hsf_handle->attr.name = "fan_forced";
2761 hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2762 hsf_handle->show = sony_nc_hsfan_show;
2763 hsf_handle->store = sony_nc_hsfan_store;
2764
2765 result = device_create_file(&pd->dev, fan_handle);
2766 if (result)
2767 goto out_fan_handle;
2768
2769 result = device_create_file(&pd->dev, hsf_handle);
2770 if (result)
2771 goto out_hsf_handle;
2772
2773 return 0;
2774
2775 out_hsf_handle:
2776 device_remove_file(&pd->dev, fan_handle);
2777
2778 out_fan_handle:
2779 kfree(hsf_handle);
2780 hsf_handle = NULL;
2781
2782 out_hsf_handle_alloc:
2783 kfree(fan_handle);
2784 fan_handle = NULL;
2785 return result;
2786 }
2787
2788 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2789 {
2790 if (fan_handle) {
2791 device_remove_file(&pd->dev, fan_handle);
2792 kfree(fan_handle);
2793 fan_handle = NULL;
2794 }
2795 if (hsf_handle) {
2796 device_remove_file(&pd->dev, hsf_handle);
2797 kfree(hsf_handle);
2798 hsf_handle = NULL;
2799 }
2800 }
2801
2802 /* USB charge function */
2803 static struct device_attribute *uc_handle;
2804
2805 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2806 struct device_attribute *attr,
2807 const char *buffer, size_t count)
2808 {
2809 unsigned int result;
2810 unsigned long value;
2811
2812 if (count > 31)
2813 return -EINVAL;
2814
2815 if (kstrtoul(buffer, 10, &value) || value > 1)
2816 return -EINVAL;
2817
2818 if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2819 return -EIO;
2820
2821 return count;
2822 }
2823
2824 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2825 struct device_attribute *attr, char *buffer)
2826 {
2827 unsigned int result;
2828
2829 if (sony_call_snc_handle(0x0155, 0x0000, &result))
2830 return -EIO;
2831
2832 return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2833 }
2834
2835 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2836 {
2837 unsigned int result;
2838
2839 if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2840 /* some models advertise the handle but have no implementation
2841 * for it
2842 */
2843 pr_info("No USB Charge capability found\n");
2844 return 0;
2845 }
2846
2847 uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2848 if (!uc_handle)
2849 return -ENOMEM;
2850
2851 sysfs_attr_init(&uc_handle->attr);
2852 uc_handle->attr.name = "usb_charge";
2853 uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2854 uc_handle->show = sony_nc_usb_charge_show;
2855 uc_handle->store = sony_nc_usb_charge_store;
2856
2857 result = device_create_file(&pd->dev, uc_handle);
2858 if (result) {
2859 kfree(uc_handle);
2860 uc_handle = NULL;
2861 return result;
2862 }
2863
2864 return 0;
2865 }
2866
2867 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2868 {
2869 if (uc_handle) {
2870 device_remove_file(&pd->dev, uc_handle);
2871 kfree(uc_handle);
2872 uc_handle = NULL;
2873 }
2874 }
2875
2876 /* Panel ID function */
2877 static struct device_attribute *panel_handle;
2878
2879 static ssize_t sony_nc_panelid_show(struct device *dev,
2880 struct device_attribute *attr, char *buffer)
2881 {
2882 unsigned int result;
2883
2884 if (sony_call_snc_handle(0x011D, 0x0000, &result))
2885 return -EIO;
2886
2887 return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2888 }
2889
2890 static int sony_nc_panelid_setup(struct platform_device *pd)
2891 {
2892 unsigned int result;
2893
2894 panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2895 if (!panel_handle)
2896 return -ENOMEM;
2897
2898 sysfs_attr_init(&panel_handle->attr);
2899 panel_handle->attr.name = "panel_id";
2900 panel_handle->attr.mode = S_IRUGO;
2901 panel_handle->show = sony_nc_panelid_show;
2902 panel_handle->store = NULL;
2903
2904 result = device_create_file(&pd->dev, panel_handle);
2905 if (result) {
2906 kfree(panel_handle);
2907 panel_handle = NULL;
2908 return result;
2909 }
2910
2911 return 0;
2912 }
2913
2914 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2915 {
2916 if (panel_handle) {
2917 device_remove_file(&pd->dev, panel_handle);
2918 kfree(panel_handle);
2919 panel_handle = NULL;
2920 }
2921 }
2922
2923 /* smart connect function */
2924 static struct device_attribute *sc_handle;
2925
2926 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2927 struct device_attribute *attr,
2928 const char *buffer, size_t count)
2929 {
2930 unsigned int result;
2931 unsigned long value;
2932
2933 if (count > 31)
2934 return -EINVAL;
2935
2936 if (kstrtoul(buffer, 10, &value) || value > 1)
2937 return -EINVAL;
2938
2939 if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2940 return -EIO;
2941
2942 return count;
2943 }
2944
2945 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2946 {
2947 unsigned int result;
2948
2949 sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2950 if (!sc_handle)
2951 return -ENOMEM;
2952
2953 sysfs_attr_init(&sc_handle->attr);
2954 sc_handle->attr.name = "smart_connect";
2955 sc_handle->attr.mode = S_IWUSR;
2956 sc_handle->show = NULL;
2957 sc_handle->store = sony_nc_smart_conn_store;
2958
2959 result = device_create_file(&pd->dev, sc_handle);
2960 if (result) {
2961 kfree(sc_handle);
2962 sc_handle = NULL;
2963 return result;
2964 }
2965
2966 return 0;
2967 }
2968
2969 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2970 {
2971 if (sc_handle) {
2972 device_remove_file(&pd->dev, sc_handle);
2973 kfree(sc_handle);
2974 sc_handle = NULL;
2975 }
2976 }
2977
2978 /* Touchpad enable/disable */
2979 struct touchpad_control {
2980 struct device_attribute attr;
2981 int handle;
2982 };
2983 static struct touchpad_control *tp_ctl;
2984
2985 static ssize_t sony_nc_touchpad_store(struct device *dev,
2986 struct device_attribute *attr, const char *buffer, size_t count)
2987 {
2988 unsigned int result;
2989 unsigned long value;
2990
2991 if (count > 31)
2992 return -EINVAL;
2993
2994 if (kstrtoul(buffer, 10, &value) || value > 1)
2995 return -EINVAL;
2996
2997 /* sysfs: 0 disabled, 1 enabled
2998 * EC: 0 enabled, 1 disabled
2999 */
3000 if (sony_call_snc_handle(tp_ctl->handle,
3001 (!value << 0x10) | 0x100, &result))
3002 return -EIO;
3003
3004 return count;
3005 }
3006
3007 static ssize_t sony_nc_touchpad_show(struct device *dev,
3008 struct device_attribute *attr, char *buffer)
3009 {
3010 unsigned int result;
3011
3012 if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3013 return -EINVAL;
3014
3015 return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3016 }
3017
3018 static int sony_nc_touchpad_setup(struct platform_device *pd,
3019 unsigned int handle)
3020 {
3021 int ret = 0;
3022
3023 tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3024 if (!tp_ctl)
3025 return -ENOMEM;
3026
3027 tp_ctl->handle = handle;
3028
3029 sysfs_attr_init(&tp_ctl->attr.attr);
3030 tp_ctl->attr.attr.name = "touchpad";
3031 tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3032 tp_ctl->attr.show = sony_nc_touchpad_show;
3033 tp_ctl->attr.store = sony_nc_touchpad_store;
3034
3035 ret = device_create_file(&pd->dev, &tp_ctl->attr);
3036 if (ret) {
3037 kfree(tp_ctl);
3038 tp_ctl = NULL;
3039 }
3040
3041 return ret;
3042 }
3043
3044 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3045 {
3046 if (tp_ctl) {
3047 device_remove_file(&pd->dev, &tp_ctl->attr);
3048 kfree(tp_ctl);
3049 tp_ctl = NULL;
3050 }
3051 }
3052
3053 static void sony_nc_backlight_ng_read_limits(int handle,
3054 struct sony_backlight_props *props)
3055 {
3056 u64 offset;
3057 int i;
3058 int lvl_table_len = 0;
3059 u8 min = 0xff, max = 0x00;
3060 unsigned char buffer[32] = { 0 };
3061
3062 props->handle = handle;
3063 props->offset = 0;
3064 props->maxlvl = 0xff;
3065
3066 offset = sony_find_snc_handle(handle);
3067
3068 /* try to read the boundaries from ACPI tables, if we fail the above
3069 * defaults should be reasonable
3070 */
3071 i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3072 32);
3073 if (i < 0)
3074 return;
3075
3076 switch (handle) {
3077 case 0x012f:
3078 case 0x0137:
3079 lvl_table_len = 9;
3080 break;
3081 case 0x143:
3082 case 0x14b:
3083 case 0x14c:
3084 lvl_table_len = 16;
3085 break;
3086 }
3087
3088 /* the buffer lists brightness levels available, brightness levels are
3089 * from position 0 to 8 in the array, other values are used by ALS
3090 * control.
3091 */
3092 for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3093
3094 dprintk("Brightness level: %d\n", buffer[i]);
3095
3096 if (!buffer[i])
3097 break;
3098
3099 if (buffer[i] > max)
3100 max = buffer[i];
3101 if (buffer[i] < min)
3102 min = buffer[i];
3103 }
3104 props->offset = min;
3105 props->maxlvl = max;
3106 dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3107 props->maxlvl);
3108 }
3109
3110 static void sony_nc_backlight_setup(void)
3111 {
3112 int max_brightness = 0;
3113 const struct backlight_ops *ops = NULL;
3114 struct backlight_properties props;
3115
3116 if (sony_find_snc_handle(0x12f) >= 0) {
3117 ops = &sony_backlight_ng_ops;
3118 sony_bl_props.cmd_base = 0x0100;
3119 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3120 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3121
3122 } else if (sony_find_snc_handle(0x137) >= 0) {
3123 ops = &sony_backlight_ng_ops;
3124 sony_bl_props.cmd_base = 0x0100;
3125 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3126 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3127
3128 } else if (sony_find_snc_handle(0x143) >= 0) {
3129 ops = &sony_backlight_ng_ops;
3130 sony_bl_props.cmd_base = 0x3000;
3131 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3132 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3133
3134 } else if (sony_find_snc_handle(0x14b) >= 0) {
3135 ops = &sony_backlight_ng_ops;
3136 sony_bl_props.cmd_base = 0x3000;
3137 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3138 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3139
3140 } else if (sony_find_snc_handle(0x14c) >= 0) {
3141 ops = &sony_backlight_ng_ops;
3142 sony_bl_props.cmd_base = 0x3000;
3143 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3144 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3145
3146 } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3147 ops = &sony_backlight_ops;
3148 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3149
3150 } else
3151 return;
3152
3153 memset(&props, 0, sizeof(struct backlight_properties));
3154 props.type = BACKLIGHT_PLATFORM;
3155 props.max_brightness = max_brightness;
3156 sony_bl_props.dev = backlight_device_register("sony", NULL,
3157 &sony_bl_props,
3158 ops, &props);
3159
3160 if (IS_ERR(sony_bl_props.dev)) {
3161 pr_warn("unable to register backlight device\n");
3162 sony_bl_props.dev = NULL;
3163 } else
3164 sony_bl_props.dev->props.brightness =
3165 ops->get_brightness(sony_bl_props.dev);
3166 }
3167
3168 static void sony_nc_backlight_cleanup(void)
3169 {
3170 backlight_device_unregister(sony_bl_props.dev);
3171 }
3172
3173 static int sony_nc_add(struct acpi_device *device)
3174 {
3175 acpi_status status;
3176 int result = 0;
3177 struct sony_nc_value *item;
3178
3179 sony_nc_acpi_device = device;
3180 strcpy(acpi_device_class(device), "sony/hotkey");
3181
3182 sony_nc_acpi_handle = device->handle;
3183
3184 /* read device status */
3185 result = acpi_bus_get_status(device);
3186 /* bail IFF the above call was successful and the device is not present */
3187 if (!result && !device->status.present) {
3188 dprintk("Device not present\n");
3189 result = -ENODEV;
3190 goto outwalk;
3191 }
3192
3193 result = sony_pf_add();
3194 if (result)
3195 goto outpresent;
3196
3197 if (debug) {
3198 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3199 sony_nc_acpi_handle, 1, sony_walk_callback,
3200 NULL, NULL, NULL);
3201 if (ACPI_FAILURE(status)) {
3202 pr_warn("unable to walk acpi resources\n");
3203 result = -ENODEV;
3204 goto outpresent;
3205 }
3206 }
3207
3208 result = sony_laptop_setup_input(device);
3209 if (result) {
3210 pr_err("Unable to create input devices\n");
3211 goto outplatform;
3212 }
3213
3214 if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3215 int arg = 1;
3216 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3217 dprintk("ECON Method failed\n");
3218 }
3219
3220 if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3221 dprintk("Doing SNC setup\n");
3222 /* retrieve the available handles */
3223 result = sony_nc_handles_setup(sony_pf_device);
3224 if (!result)
3225 sony_nc_function_setup(device, sony_pf_device);
3226 }
3227
3228 if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3229 sony_nc_backlight_setup();
3230
3231 /* create sony_pf sysfs attributes related to the SNC device */
3232 for (item = sony_nc_values; item->name; ++item) {
3233
3234 if (!debug && item->debug)
3235 continue;
3236
3237 /* find the available acpiget as described in the DSDT */
3238 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3239 if (acpi_has_method(sony_nc_acpi_handle,
3240 *item->acpiget)) {
3241 dprintk("Found %s getter: %s\n",
3242 item->name, *item->acpiget);
3243 item->devattr.attr.mode |= S_IRUGO;
3244 break;
3245 }
3246 }
3247
3248 /* find the available acpiset as described in the DSDT */
3249 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3250 if (acpi_has_method(sony_nc_acpi_handle,
3251 *item->acpiset)) {
3252 dprintk("Found %s setter: %s\n",
3253 item->name, *item->acpiset);
3254 item->devattr.attr.mode |= S_IWUSR;
3255 break;
3256 }
3257 }
3258
3259 if (item->devattr.attr.mode != 0) {
3260 result =
3261 device_create_file(&sony_pf_device->dev,
3262 &item->devattr);
3263 if (result)
3264 goto out_sysfs;
3265 }
3266 }
3267
3268 pr_info("SNC setup done.\n");
3269 return 0;
3270
3271 out_sysfs:
3272 for (item = sony_nc_values; item->name; ++item) {
3273 device_remove_file(&sony_pf_device->dev, &item->devattr);
3274 }
3275 sony_nc_backlight_cleanup();
3276 sony_nc_function_cleanup(sony_pf_device);
3277 sony_nc_handles_cleanup(sony_pf_device);
3278
3279 outplatform:
3280 sony_laptop_remove_input();
3281
3282 outpresent:
3283 sony_pf_remove();
3284
3285 outwalk:
3286 sony_nc_rfkill_cleanup();
3287 return result;
3288 }
3289
3290 static int sony_nc_remove(struct acpi_device *device)
3291 {
3292 struct sony_nc_value *item;
3293
3294 sony_nc_backlight_cleanup();
3295
3296 sony_nc_acpi_device = NULL;
3297
3298 for (item = sony_nc_values; item->name; ++item) {
3299 device_remove_file(&sony_pf_device->dev, &item->devattr);
3300 }
3301
3302 sony_nc_function_cleanup(sony_pf_device);
3303 sony_nc_handles_cleanup(sony_pf_device);
3304 sony_pf_remove();
3305 sony_laptop_remove_input();
3306 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3307
3308 return 0;
3309 }
3310
3311 static const struct acpi_device_id sony_device_ids[] = {
3312 {SONY_NC_HID, 0},
3313 {SONY_PIC_HID, 0},
3314 {"", 0},
3315 };
3316 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3317
3318 static const struct acpi_device_id sony_nc_device_ids[] = {
3319 {SONY_NC_HID, 0},
3320 {"", 0},
3321 };
3322
3323 static struct acpi_driver sony_nc_driver = {
3324 .name = SONY_NC_DRIVER_NAME,
3325 .class = SONY_NC_CLASS,
3326 .ids = sony_nc_device_ids,
3327 .owner = THIS_MODULE,
3328 .ops = {
3329 .add = sony_nc_add,
3330 .remove = sony_nc_remove,
3331 .notify = sony_nc_notify,
3332 },
3333 .drv.pm = &sony_nc_pm,
3334 };
3335
3336 /*********** SPIC (SNY6001) Device ***********/
3337
3338 #define SONYPI_DEVICE_TYPE1 0x00000001
3339 #define SONYPI_DEVICE_TYPE2 0x00000002
3340 #define SONYPI_DEVICE_TYPE3 0x00000004
3341
3342 #define SONYPI_TYPE1_OFFSET 0x04
3343 #define SONYPI_TYPE2_OFFSET 0x12
3344 #define SONYPI_TYPE3_OFFSET 0x12
3345
3346 struct sony_pic_ioport {
3347 struct acpi_resource_io io1;
3348 struct acpi_resource_io io2;
3349 struct list_head list;
3350 };
3351
3352 struct sony_pic_irq {
3353 struct acpi_resource_irq irq;
3354 struct list_head list;
3355 };
3356
3357 struct sonypi_eventtypes {
3358 u8 data;
3359 unsigned long mask;
3360 struct sonypi_event *events;
3361 };
3362
3363 struct sony_pic_dev {
3364 struct acpi_device *acpi_dev;
3365 struct sony_pic_irq *cur_irq;
3366 struct sony_pic_ioport *cur_ioport;
3367 struct list_head interrupts;
3368 struct list_head ioports;
3369 struct mutex lock;
3370 struct sonypi_eventtypes *event_types;
3371 int (*handle_irq)(const u8, const u8);
3372 int model;
3373 u16 evport_offset;
3374 u8 camera_power;
3375 u8 bluetooth_power;
3376 u8 wwan_power;
3377 };
3378
3379 static struct sony_pic_dev spic_dev = {
3380 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
3381 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
3382 };
3383
3384 static int spic_drv_registered;
3385
3386 /* Event masks */
3387 #define SONYPI_JOGGER_MASK 0x00000001
3388 #define SONYPI_CAPTURE_MASK 0x00000002
3389 #define SONYPI_FNKEY_MASK 0x00000004
3390 #define SONYPI_BLUETOOTH_MASK 0x00000008
3391 #define SONYPI_PKEY_MASK 0x00000010
3392 #define SONYPI_BACK_MASK 0x00000020
3393 #define SONYPI_HELP_MASK 0x00000040
3394 #define SONYPI_LID_MASK 0x00000080
3395 #define SONYPI_ZOOM_MASK 0x00000100
3396 #define SONYPI_THUMBPHRASE_MASK 0x00000200
3397 #define SONYPI_MEYE_MASK 0x00000400
3398 #define SONYPI_MEMORYSTICK_MASK 0x00000800
3399 #define SONYPI_BATTERY_MASK 0x00001000
3400 #define SONYPI_WIRELESS_MASK 0x00002000
3401
3402 struct sonypi_event {
3403 u8 data;
3404 u8 event;
3405 };
3406
3407 /* The set of possible button release events */
3408 static struct sonypi_event sonypi_releaseev[] = {
3409 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3410 { 0, 0 }
3411 };
3412
3413 /* The set of possible jogger events */
3414 static struct sonypi_event sonypi_joggerev[] = {
3415 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3416 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3417 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3418 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3419 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3420 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3421 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3422 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3423 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3424 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3425 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3426 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3427 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3428 { 0, 0 }
3429 };
3430
3431 /* The set of possible capture button events */
3432 static struct sonypi_event sonypi_captureev[] = {
3433 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3434 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3435 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3436 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3437 { 0, 0 }
3438 };
3439
3440 /* The set of possible fnkeys events */
3441 static struct sonypi_event sonypi_fnkeyev[] = {
3442 { 0x10, SONYPI_EVENT_FNKEY_ESC },
3443 { 0x11, SONYPI_EVENT_FNKEY_F1 },
3444 { 0x12, SONYPI_EVENT_FNKEY_F2 },
3445 { 0x13, SONYPI_EVENT_FNKEY_F3 },
3446 { 0x14, SONYPI_EVENT_FNKEY_F4 },
3447 { 0x15, SONYPI_EVENT_FNKEY_F5 },
3448 { 0x16, SONYPI_EVENT_FNKEY_F6 },
3449 { 0x17, SONYPI_EVENT_FNKEY_F7 },
3450 { 0x18, SONYPI_EVENT_FNKEY_F8 },
3451 { 0x19, SONYPI_EVENT_FNKEY_F9 },
3452 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3453 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3454 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3455 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3456 { 0x21, SONYPI_EVENT_FNKEY_1 },
3457 { 0x22, SONYPI_EVENT_FNKEY_2 },
3458 { 0x31, SONYPI_EVENT_FNKEY_D },
3459 { 0x32, SONYPI_EVENT_FNKEY_E },
3460 { 0x33, SONYPI_EVENT_FNKEY_F },
3461 { 0x34, SONYPI_EVENT_FNKEY_S },
3462 { 0x35, SONYPI_EVENT_FNKEY_B },
3463 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3464 { 0, 0 }
3465 };
3466
3467 /* The set of possible program key events */
3468 static struct sonypi_event sonypi_pkeyev[] = {
3469 { 0x01, SONYPI_EVENT_PKEY_P1 },
3470 { 0x02, SONYPI_EVENT_PKEY_P2 },
3471 { 0x04, SONYPI_EVENT_PKEY_P3 },
3472 { 0x20, SONYPI_EVENT_PKEY_P1 },
3473 { 0, 0 }
3474 };
3475
3476 /* The set of possible bluetooth events */
3477 static struct sonypi_event sonypi_blueev[] = {
3478 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3479 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3480 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3481 { 0, 0 }
3482 };
3483
3484 /* The set of possible wireless events */
3485 static struct sonypi_event sonypi_wlessev[] = {
3486 { 0x59, SONYPI_EVENT_IGNORE },
3487 { 0x5a, SONYPI_EVENT_IGNORE },
3488 { 0, 0 }
3489 };
3490
3491 /* The set of possible back button events */
3492 static struct sonypi_event sonypi_backev[] = {
3493 { 0x20, SONYPI_EVENT_BACK_PRESSED },
3494 { 0, 0 }
3495 };
3496
3497 /* The set of possible help button events */
3498 static struct sonypi_event sonypi_helpev[] = {
3499 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3500 { 0, 0 }
3501 };
3502
3503
3504 /* The set of possible lid events */
3505 static struct sonypi_event sonypi_lidev[] = {
3506 { 0x51, SONYPI_EVENT_LID_CLOSED },
3507 { 0x50, SONYPI_EVENT_LID_OPENED },
3508 { 0, 0 }
3509 };
3510
3511 /* The set of possible zoom events */
3512 static struct sonypi_event sonypi_zoomev[] = {
3513 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3514 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3515 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3516 { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3517 { 0, 0 }
3518 };
3519
3520 /* The set of possible thumbphrase events */
3521 static struct sonypi_event sonypi_thumbphraseev[] = {
3522 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3523 { 0, 0 }
3524 };
3525
3526 /* The set of possible motioneye camera events */
3527 static struct sonypi_event sonypi_meyeev[] = {
3528 { 0x00, SONYPI_EVENT_MEYE_FACE },
3529 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3530 { 0, 0 }
3531 };
3532
3533 /* The set of possible memorystick events */
3534 static struct sonypi_event sonypi_memorystickev[] = {
3535 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3536 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3537 { 0, 0 }
3538 };
3539
3540 /* The set of possible battery events */
3541 static struct sonypi_event sonypi_batteryev[] = {
3542 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3543 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3544 { 0, 0 }
3545 };
3546
3547 /* The set of possible volume events */
3548 static struct sonypi_event sonypi_volumeev[] = {
3549 { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3550 { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3551 { 0, 0 }
3552 };
3553
3554 /* The set of possible brightness events */
3555 static struct sonypi_event sonypi_brightnessev[] = {
3556 { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3557 { 0, 0 }
3558 };
3559
3560 static struct sonypi_eventtypes type1_events[] = {
3561 { 0, 0xffffffff, sonypi_releaseev },
3562 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3563 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3564 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3565 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3566 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3567 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3568 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3569 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3570 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3571 { 0 },
3572 };
3573 static struct sonypi_eventtypes type2_events[] = {
3574 { 0, 0xffffffff, sonypi_releaseev },
3575 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3576 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3577 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3578 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3579 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3580 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3581 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3582 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3583 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3584 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3585 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3586 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3587 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3588 { 0 },
3589 };
3590 static struct sonypi_eventtypes type3_events[] = {
3591 { 0, 0xffffffff, sonypi_releaseev },
3592 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3593 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3594 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3595 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3596 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3597 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3598 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3599 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3600 { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3601 { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3602 { 0 },
3603 };
3604
3605 /* low level spic calls */
3606 #define ITERATIONS_LONG 10000
3607 #define ITERATIONS_SHORT 10
3608 #define wait_on_command(command, iterations) { \
3609 unsigned int n = iterations; \
3610 while (--n && (command)) \
3611 udelay(1); \
3612 if (!n) \
3613 dprintk("command failed at %s : %s (line %d)\n", \
3614 __FILE__, __func__, __LINE__); \
3615 }
3616
3617 static u8 sony_pic_call1(u8 dev)
3618 {
3619 u8 v1, v2;
3620
3621 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3622 ITERATIONS_LONG);
3623 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3624 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3625 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3626 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3627 return v2;
3628 }
3629
3630 static u8 sony_pic_call2(u8 dev, u8 fn)
3631 {
3632 u8 v1;
3633
3634 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3635 ITERATIONS_LONG);
3636 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3637 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3638 ITERATIONS_LONG);
3639 outb(fn, spic_dev.cur_ioport->io1.minimum);
3640 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3641 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3642 return v1;
3643 }
3644
3645 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3646 {
3647 u8 v1;
3648
3649 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3650 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3651 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3652 outb(fn, spic_dev.cur_ioport->io1.minimum);
3653 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3654 outb(v, spic_dev.cur_ioport->io1.minimum);
3655 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3656 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3657 dev, fn, v, v1);
3658 return v1;
3659 }
3660
3661 /*
3662 * minidrivers for SPIC models
3663 */
3664 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3665 {
3666 /*
3667 * 0x31 could mean we have to take some extra action and wait for
3668 * the next irq for some Type3 models, it will generate a new
3669 * irq and we can read new data from the device:
3670 * - 0x5c and 0x5f requires 0xA0
3671 * - 0x61 requires 0xB3
3672 */
3673 if (data_mask == 0x31) {
3674 if (ev == 0x5c || ev == 0x5f)
3675 sony_pic_call1(0xA0);
3676 else if (ev == 0x61)
3677 sony_pic_call1(0xB3);
3678 return 0;
3679 }
3680 return 1;
3681 }
3682
3683 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3684 {
3685 struct pci_dev *pcidev;
3686
3687 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3688 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3689 if (pcidev) {
3690 dev->model = SONYPI_DEVICE_TYPE1;
3691 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3692 dev->event_types = type1_events;
3693 goto out;
3694 }
3695
3696 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3697 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3698 if (pcidev) {
3699 dev->model = SONYPI_DEVICE_TYPE2;
3700 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3701 dev->event_types = type2_events;
3702 goto out;
3703 }
3704
3705 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3706 PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3707 if (pcidev) {
3708 dev->model = SONYPI_DEVICE_TYPE3;
3709 dev->handle_irq = type3_handle_irq;
3710 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3711 dev->event_types = type3_events;
3712 goto out;
3713 }
3714
3715 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3716 PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3717 if (pcidev) {
3718 dev->model = SONYPI_DEVICE_TYPE3;
3719 dev->handle_irq = type3_handle_irq;
3720 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3721 dev->event_types = type3_events;
3722 goto out;
3723 }
3724
3725 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3726 PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3727 if (pcidev) {
3728 dev->model = SONYPI_DEVICE_TYPE3;
3729 dev->handle_irq = type3_handle_irq;
3730 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3731 dev->event_types = type3_events;
3732 goto out;
3733 }
3734
3735 /* default */
3736 dev->model = SONYPI_DEVICE_TYPE2;
3737 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3738 dev->event_types = type2_events;
3739
3740 out:
3741 pci_dev_put(pcidev);
3742
3743 pr_info("detected Type%d model\n",
3744 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3745 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3746 }
3747
3748 /* camera tests and poweron/poweroff */
3749 #define SONYPI_CAMERA_PICTURE 5
3750 #define SONYPI_CAMERA_CONTROL 0x10
3751
3752 #define SONYPI_CAMERA_BRIGHTNESS 0
3753 #define SONYPI_CAMERA_CONTRAST 1
3754 #define SONYPI_CAMERA_HUE 2
3755 #define SONYPI_CAMERA_COLOR 3
3756 #define SONYPI_CAMERA_SHARPNESS 4
3757
3758 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
3759 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
3760 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
3761 #define SONYPI_CAMERA_MUTE_MASK 0x40
3762
3763 /* the rest don't need a loop until not 0xff */
3764 #define SONYPI_CAMERA_AGC 6
3765 #define SONYPI_CAMERA_AGC_MASK 0x30
3766 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
3767
3768 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
3769 #define SONYPI_CAMERA_CONTROL 0x10
3770
3771 #define SONYPI_CAMERA_STATUS 7
3772 #define SONYPI_CAMERA_STATUS_READY 0x2
3773 #define SONYPI_CAMERA_STATUS_POSITION 0x4
3774
3775 #define SONYPI_DIRECTION_BACKWARDS 0x4
3776
3777 #define SONYPI_CAMERA_REVISION 8
3778 #define SONYPI_CAMERA_ROMVERSION 9
3779
3780 static int __sony_pic_camera_ready(void)
3781 {
3782 u8 v;
3783
3784 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3785 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3786 }
3787
3788 static int __sony_pic_camera_off(void)
3789 {
3790 if (!camera) {
3791 pr_warn("camera control not enabled\n");
3792 return -ENODEV;
3793 }
3794
3795 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3796 SONYPI_CAMERA_MUTE_MASK),
3797 ITERATIONS_SHORT);
3798
3799 if (spic_dev.camera_power) {
3800 sony_pic_call2(0x91, 0);
3801 spic_dev.camera_power = 0;
3802 }
3803 return 0;
3804 }
3805
3806 static int __sony_pic_camera_on(void)
3807 {
3808 int i, j, x;
3809
3810 if (!camera) {
3811 pr_warn("camera control not enabled\n");
3812 return -ENODEV;
3813 }
3814
3815 if (spic_dev.camera_power)
3816 return 0;
3817
3818 for (j = 5; j > 0; j--) {
3819
3820 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3821 msleep(10);
3822 sony_pic_call1(0x93);
3823
3824 for (i = 400; i > 0; i--) {
3825 if (__sony_pic_camera_ready())
3826 break;
3827 msleep(10);
3828 }
3829 if (i)
3830 break;
3831 }
3832
3833 if (j == 0) {
3834 pr_warn("failed to power on camera\n");
3835 return -ENODEV;
3836 }
3837
3838 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3839 0x5a),
3840 ITERATIONS_SHORT);
3841
3842 spic_dev.camera_power = 1;
3843 return 0;
3844 }
3845
3846 /* External camera command (exported to the motion eye v4l driver) */
3847 int sony_pic_camera_command(int command, u8 value)
3848 {
3849 if (!camera)
3850 return -EIO;
3851
3852 mutex_lock(&spic_dev.lock);
3853
3854 switch (command) {
3855 case SONY_PIC_COMMAND_SETCAMERA:
3856 if (value)
3857 __sony_pic_camera_on();
3858 else
3859 __sony_pic_camera_off();
3860 break;
3861 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3862 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3863 ITERATIONS_SHORT);
3864 break;
3865 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3866 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3867 ITERATIONS_SHORT);
3868 break;
3869 case SONY_PIC_COMMAND_SETCAMERAHUE:
3870 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3871 ITERATIONS_SHORT);
3872 break;
3873 case SONY_PIC_COMMAND_SETCAMERACOLOR:
3874 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3875 ITERATIONS_SHORT);
3876 break;
3877 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3878 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3879 ITERATIONS_SHORT);
3880 break;
3881 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3882 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3883 ITERATIONS_SHORT);
3884 break;
3885 case SONY_PIC_COMMAND_SETCAMERAAGC:
3886 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3887 ITERATIONS_SHORT);
3888 break;
3889 default:
3890 pr_err("sony_pic_camera_command invalid: %d\n", command);
3891 break;
3892 }
3893 mutex_unlock(&spic_dev.lock);
3894 return 0;
3895 }
3896 EXPORT_SYMBOL(sony_pic_camera_command);
3897
3898 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3899 static void __sony_pic_set_wwanpower(u8 state)
3900 {
3901 state = !!state;
3902 if (spic_dev.wwan_power == state)
3903 return;
3904 sony_pic_call2(0xB0, state);
3905 sony_pic_call1(0x82);
3906 spic_dev.wwan_power = state;
3907 }
3908
3909 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3910 struct device_attribute *attr,
3911 const char *buffer, size_t count)
3912 {
3913 unsigned long value;
3914 if (count > 31)
3915 return -EINVAL;
3916
3917 if (kstrtoul(buffer, 10, &value))
3918 return -EINVAL;
3919
3920 mutex_lock(&spic_dev.lock);
3921 __sony_pic_set_wwanpower(value);
3922 mutex_unlock(&spic_dev.lock);
3923
3924 return count;
3925 }
3926
3927 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3928 struct device_attribute *attr, char *buffer)
3929 {
3930 ssize_t count;
3931 mutex_lock(&spic_dev.lock);
3932 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3933 mutex_unlock(&spic_dev.lock);
3934 return count;
3935 }
3936
3937 /* bluetooth subsystem power state */
3938 static void __sony_pic_set_bluetoothpower(u8 state)
3939 {
3940 state = !!state;
3941 if (spic_dev.bluetooth_power == state)
3942 return;
3943 sony_pic_call2(0x96, state);
3944 sony_pic_call1(0x82);
3945 spic_dev.bluetooth_power = state;
3946 }
3947
3948 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3949 struct device_attribute *attr,
3950 const char *buffer, size_t count)
3951 {
3952 unsigned long value;
3953 if (count > 31)
3954 return -EINVAL;
3955
3956 if (kstrtoul(buffer, 10, &value))
3957 return -EINVAL;
3958
3959 mutex_lock(&spic_dev.lock);
3960 __sony_pic_set_bluetoothpower(value);
3961 mutex_unlock(&spic_dev.lock);
3962
3963 return count;
3964 }
3965
3966 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3967 struct device_attribute *attr, char *buffer)
3968 {
3969 ssize_t count = 0;
3970 mutex_lock(&spic_dev.lock);
3971 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3972 mutex_unlock(&spic_dev.lock);
3973 return count;
3974 }
3975
3976 /* fan speed */
3977 /* FAN0 information (reverse engineered from ACPI tables) */
3978 #define SONY_PIC_FAN0_STATUS 0x93
3979 static int sony_pic_set_fanspeed(unsigned long value)
3980 {
3981 return ec_write(SONY_PIC_FAN0_STATUS, value);
3982 }
3983
3984 static int sony_pic_get_fanspeed(u8 *value)
3985 {
3986 return ec_read(SONY_PIC_FAN0_STATUS, value);
3987 }
3988
3989 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3990 struct device_attribute *attr,
3991 const char *buffer, size_t count)
3992 {
3993 unsigned long value;
3994 if (count > 31)
3995 return -EINVAL;
3996
3997 if (kstrtoul(buffer, 10, &value))
3998 return -EINVAL;
3999
4000 if (sony_pic_set_fanspeed(value))
4001 return -EIO;
4002
4003 return count;
4004 }
4005
4006 static ssize_t sony_pic_fanspeed_show(struct device *dev,
4007 struct device_attribute *attr, char *buffer)
4008 {
4009 u8 value = 0;
4010 if (sony_pic_get_fanspeed(&value))
4011 return -EIO;
4012
4013 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4014 }
4015
4016 #define SPIC_ATTR(_name, _mode) \
4017 struct device_attribute spic_attr_##_name = __ATTR(_name, \
4018 _mode, sony_pic_## _name ##_show, \
4019 sony_pic_## _name ##_store)
4020
4021 static SPIC_ATTR(bluetoothpower, 0644);
4022 static SPIC_ATTR(wwanpower, 0644);
4023 static SPIC_ATTR(fanspeed, 0644);
4024
4025 static struct attribute *spic_attributes[] = {
4026 &spic_attr_bluetoothpower.attr,
4027 &spic_attr_wwanpower.attr,
4028 &spic_attr_fanspeed.attr,
4029 NULL
4030 };
4031
4032 static struct attribute_group spic_attribute_group = {
4033 .attrs = spic_attributes
4034 };
4035
4036 /******** SONYPI compatibility **********/
4037 #ifdef CONFIG_SONYPI_COMPAT
4038
4039 /* battery / brightness / temperature addresses */
4040 #define SONYPI_BAT_FLAGS 0x81
4041 #define SONYPI_LCD_LIGHT 0x96
4042 #define SONYPI_BAT1_PCTRM 0xa0
4043 #define SONYPI_BAT1_LEFT 0xa2
4044 #define SONYPI_BAT1_MAXRT 0xa4
4045 #define SONYPI_BAT2_PCTRM 0xa8
4046 #define SONYPI_BAT2_LEFT 0xaa
4047 #define SONYPI_BAT2_MAXRT 0xac
4048 #define SONYPI_BAT1_MAXTK 0xb0
4049 #define SONYPI_BAT1_FULL 0xb2
4050 #define SONYPI_BAT2_MAXTK 0xb8
4051 #define SONYPI_BAT2_FULL 0xba
4052 #define SONYPI_TEMP_STATUS 0xC1
4053
4054 struct sonypi_compat_s {
4055 struct fasync_struct *fifo_async;
4056 struct kfifo fifo;
4057 spinlock_t fifo_lock;
4058 wait_queue_head_t fifo_proc_list;
4059 atomic_t open_count;
4060 };
4061 static struct sonypi_compat_s sonypi_compat = {
4062 .open_count = ATOMIC_INIT(0),
4063 };
4064
4065 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4066 {
4067 return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4068 }
4069
4070 static int sonypi_misc_release(struct inode *inode, struct file *file)
4071 {
4072 atomic_dec(&sonypi_compat.open_count);
4073 return 0;
4074 }
4075
4076 static int sonypi_misc_open(struct inode *inode, struct file *file)
4077 {
4078 /* Flush input queue on first open */
4079 unsigned long flags;
4080
4081 spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4082
4083 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4084 kfifo_reset(&sonypi_compat.fifo);
4085
4086 spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4087
4088 return 0;
4089 }
4090
4091 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4092 size_t count, loff_t *pos)
4093 {
4094 ssize_t ret;
4095 unsigned char c;
4096
4097 if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4098 (file->f_flags & O_NONBLOCK))
4099 return -EAGAIN;
4100
4101 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4102 kfifo_len(&sonypi_compat.fifo) != 0);
4103 if (ret)
4104 return ret;
4105
4106 while (ret < count &&
4107 (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4108 &sonypi_compat.fifo_lock) == sizeof(c))) {
4109 if (put_user(c, buf++))
4110 return -EFAULT;
4111 ret++;
4112 }
4113
4114 if (ret > 0) {
4115 struct inode *inode = file_inode(file);
4116 inode->i_atime = current_fs_time(inode->i_sb);
4117 }
4118
4119 return ret;
4120 }
4121
4122 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
4123 {
4124 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4125 if (kfifo_len(&sonypi_compat.fifo))
4126 return POLLIN | POLLRDNORM;
4127 return 0;
4128 }
4129
4130 static int ec_read16(u8 addr, u16 *value)
4131 {
4132 u8 val_lb, val_hb;
4133 if (ec_read(addr, &val_lb))
4134 return -1;
4135 if (ec_read(addr + 1, &val_hb))
4136 return -1;
4137 *value = val_lb | (val_hb << 8);
4138 return 0;
4139 }
4140
4141 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4142 unsigned long arg)
4143 {
4144 int ret = 0;
4145 void __user *argp = (void __user *)arg;
4146 u8 val8;
4147 u16 val16;
4148 int value;
4149
4150 mutex_lock(&spic_dev.lock);
4151 switch (cmd) {
4152 case SONYPI_IOCGBRT:
4153 if (sony_bl_props.dev == NULL) {
4154 ret = -EIO;
4155 break;
4156 }
4157 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4158 &value)) {
4159 ret = -EIO;
4160 break;
4161 }
4162 val8 = ((value & 0xff) - 1) << 5;
4163 if (copy_to_user(argp, &val8, sizeof(val8)))
4164 ret = -EFAULT;
4165 break;
4166 case SONYPI_IOCSBRT:
4167 if (sony_bl_props.dev == NULL) {
4168 ret = -EIO;
4169 break;
4170 }
4171 if (copy_from_user(&val8, argp, sizeof(val8))) {
4172 ret = -EFAULT;
4173 break;
4174 }
4175 value = (val8 >> 5) + 1;
4176 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4177 NULL)) {
4178 ret = -EIO;
4179 break;
4180 }
4181 /* sync the backlight device status */
4182 sony_bl_props.dev->props.brightness =
4183 sony_backlight_get_brightness(sony_bl_props.dev);
4184 break;
4185 case SONYPI_IOCGBAT1CAP:
4186 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4187 ret = -EIO;
4188 break;
4189 }
4190 if (copy_to_user(argp, &val16, sizeof(val16)))
4191 ret = -EFAULT;
4192 break;
4193 case SONYPI_IOCGBAT1REM:
4194 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4195 ret = -EIO;
4196 break;
4197 }
4198 if (copy_to_user(argp, &val16, sizeof(val16)))
4199 ret = -EFAULT;
4200 break;
4201 case SONYPI_IOCGBAT2CAP:
4202 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4203 ret = -EIO;
4204 break;
4205 }
4206 if (copy_to_user(argp, &val16, sizeof(val16)))
4207 ret = -EFAULT;
4208 break;
4209 case SONYPI_IOCGBAT2REM:
4210 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4211 ret = -EIO;
4212 break;
4213 }
4214 if (copy_to_user(argp, &val16, sizeof(val16)))
4215 ret = -EFAULT;
4216 break;
4217 case SONYPI_IOCGBATFLAGS:
4218 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4219 ret = -EIO;
4220 break;
4221 }
4222 val8 &= 0x07;
4223 if (copy_to_user(argp, &val8, sizeof(val8)))
4224 ret = -EFAULT;
4225 break;
4226 case SONYPI_IOCGBLUE:
4227 val8 = spic_dev.bluetooth_power;
4228 if (copy_to_user(argp, &val8, sizeof(val8)))
4229 ret = -EFAULT;
4230 break;
4231 case SONYPI_IOCSBLUE:
4232 if (copy_from_user(&val8, argp, sizeof(val8))) {
4233 ret = -EFAULT;
4234 break;
4235 }
4236 __sony_pic_set_bluetoothpower(val8);
4237 break;
4238 /* FAN Controls */
4239 case SONYPI_IOCGFAN:
4240 if (sony_pic_get_fanspeed(&val8)) {
4241 ret = -EIO;
4242 break;
4243 }
4244 if (copy_to_user(argp, &val8, sizeof(val8)))
4245 ret = -EFAULT;
4246 break;
4247 case SONYPI_IOCSFAN:
4248 if (copy_from_user(&val8, argp, sizeof(val8))) {
4249 ret = -EFAULT;
4250 break;
4251 }
4252 if (sony_pic_set_fanspeed(val8))
4253 ret = -EIO;
4254 break;
4255 /* GET Temperature (useful under APM) */
4256 case SONYPI_IOCGTEMP:
4257 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4258 ret = -EIO;
4259 break;
4260 }
4261 if (copy_to_user(argp, &val8, sizeof(val8)))
4262 ret = -EFAULT;
4263 break;
4264 default:
4265 ret = -EINVAL;
4266 }
4267 mutex_unlock(&spic_dev.lock);
4268 return ret;
4269 }
4270
4271 static const struct file_operations sonypi_misc_fops = {
4272 .owner = THIS_MODULE,
4273 .read = sonypi_misc_read,
4274 .poll = sonypi_misc_poll,
4275 .open = sonypi_misc_open,
4276 .release = sonypi_misc_release,
4277 .fasync = sonypi_misc_fasync,
4278 .unlocked_ioctl = sonypi_misc_ioctl,
4279 .llseek = noop_llseek,
4280 };
4281
4282 static struct miscdevice sonypi_misc_device = {
4283 .minor = MISC_DYNAMIC_MINOR,
4284 .name = "sonypi",
4285 .fops = &sonypi_misc_fops,
4286 };
4287
4288 static void sonypi_compat_report_event(u8 event)
4289 {
4290 kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4291 sizeof(event), &sonypi_compat.fifo_lock);
4292 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4293 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4294 }
4295
4296 static int sonypi_compat_init(void)
4297 {
4298 int error;
4299
4300 spin_lock_init(&sonypi_compat.fifo_lock);
4301 error =
4302 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4303 if (error) {
4304 pr_err("kfifo_alloc failed\n");
4305 return error;
4306 }
4307
4308 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4309
4310 if (minor != -1)
4311 sonypi_misc_device.minor = minor;
4312 error = misc_register(&sonypi_misc_device);
4313 if (error) {
4314 pr_err("misc_register failed\n");
4315 goto err_free_kfifo;
4316 }
4317 if (minor == -1)
4318 pr_info("device allocated minor is %d\n",
4319 sonypi_misc_device.minor);
4320
4321 return 0;
4322
4323 err_free_kfifo:
4324 kfifo_free(&sonypi_compat.fifo);
4325 return error;
4326 }
4327
4328 static void sonypi_compat_exit(void)
4329 {
4330 misc_deregister(&sonypi_misc_device);
4331 kfifo_free(&sonypi_compat.fifo);
4332 }
4333 #else
4334 static int sonypi_compat_init(void) { return 0; }
4335 static void sonypi_compat_exit(void) { }
4336 static void sonypi_compat_report_event(u8 event) { }
4337 #endif /* CONFIG_SONYPI_COMPAT */
4338
4339 /*
4340 * ACPI callbacks
4341 */
4342 static acpi_status
4343 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4344 {
4345 u32 i;
4346 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4347
4348 switch (resource->type) {
4349 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4350 {
4351 /* start IO enumeration */
4352 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4353 if (!ioport)
4354 return AE_ERROR;
4355
4356 list_add(&ioport->list, &dev->ioports);
4357 return AE_OK;
4358 }
4359
4360 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4361 /* end IO enumeration */
4362 return AE_OK;
4363
4364 case ACPI_RESOURCE_TYPE_IRQ:
4365 {
4366 struct acpi_resource_irq *p = &resource->data.irq;
4367 struct sony_pic_irq *interrupt = NULL;
4368 if (!p || !p->interrupt_count) {
4369 /*
4370 * IRQ descriptors may have no IRQ# bits set,
4371 * particularly those those w/ _STA disabled
4372 */
4373 dprintk("Blank IRQ resource\n");
4374 return AE_OK;
4375 }
4376 for (i = 0; i < p->interrupt_count; i++) {
4377 if (!p->interrupts[i]) {
4378 pr_warn("Invalid IRQ %d\n",
4379 p->interrupts[i]);
4380 continue;
4381 }
4382 interrupt = kzalloc(sizeof(*interrupt),
4383 GFP_KERNEL);
4384 if (!interrupt)
4385 return AE_ERROR;
4386
4387 list_add(&interrupt->list, &dev->interrupts);
4388 interrupt->irq.triggering = p->triggering;
4389 interrupt->irq.polarity = p->polarity;
4390 interrupt->irq.sharable = p->sharable;
4391 interrupt->irq.interrupt_count = 1;
4392 interrupt->irq.interrupts[0] = p->interrupts[i];
4393 }
4394 return AE_OK;
4395 }
4396 case ACPI_RESOURCE_TYPE_IO:
4397 {
4398 struct acpi_resource_io *io = &resource->data.io;
4399 struct sony_pic_ioport *ioport =
4400 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4401 if (!io) {
4402 dprintk("Blank IO resource\n");
4403 return AE_OK;
4404 }
4405
4406 if (!ioport->io1.minimum) {
4407 memcpy(&ioport->io1, io, sizeof(*io));
4408 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4409 ioport->io1.address_length);
4410 }
4411 else if (!ioport->io2.minimum) {
4412 memcpy(&ioport->io2, io, sizeof(*io));
4413 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4414 ioport->io2.address_length);
4415 }
4416 else {
4417 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4418 return AE_ERROR;
4419 }
4420 return AE_OK;
4421 }
4422 default:
4423 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4424 resource->type);
4425
4426 case ACPI_RESOURCE_TYPE_END_TAG:
4427 return AE_OK;
4428 }
4429 return AE_CTRL_TERMINATE;
4430 }
4431
4432 static int sony_pic_possible_resources(struct acpi_device *device)
4433 {
4434 int result = 0;
4435 acpi_status status = AE_OK;
4436
4437 if (!device)
4438 return -EINVAL;
4439
4440 /* get device status */
4441 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4442 dprintk("Evaluating _STA\n");
4443 result = acpi_bus_get_status(device);
4444 if (result) {
4445 pr_warn("Unable to read status\n");
4446 goto end;
4447 }
4448
4449 if (!device->status.enabled)
4450 dprintk("Device disabled\n");
4451 else
4452 dprintk("Device enabled\n");
4453
4454 /*
4455 * Query and parse 'method'
4456 */
4457 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4458 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4459 sony_pic_read_possible_resource, &spic_dev);
4460 if (ACPI_FAILURE(status)) {
4461 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4462 result = -ENODEV;
4463 }
4464 end:
4465 return result;
4466 }
4467
4468 /*
4469 * Disable the spic device by calling its _DIS method
4470 */
4471 static int sony_pic_disable(struct acpi_device *device)
4472 {
4473 acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4474 NULL);
4475
4476 if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4477 return -ENXIO;
4478
4479 dprintk("Device disabled\n");
4480 return 0;
4481 }
4482
4483
4484 /*
4485 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4486 *
4487 * Call _SRS to set current resources
4488 */
4489 static int sony_pic_enable(struct acpi_device *device,
4490 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4491 {
4492 acpi_status status;
4493 int result = 0;
4494 /* Type 1 resource layout is:
4495 * IO
4496 * IO
4497 * IRQNoFlags
4498 * End
4499 *
4500 * Type 2 and 3 resource layout is:
4501 * IO
4502 * IRQNoFlags
4503 * End
4504 */
4505 struct {
4506 struct acpi_resource res1;
4507 struct acpi_resource res2;
4508 struct acpi_resource res3;
4509 struct acpi_resource res4;
4510 } *resource;
4511 struct acpi_buffer buffer = { 0, NULL };
4512
4513 if (!ioport || !irq)
4514 return -EINVAL;
4515
4516 /* init acpi_buffer */
4517 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4518 if (!resource)
4519 return -ENOMEM;
4520
4521 buffer.length = sizeof(*resource) + 1;
4522 buffer.pointer = resource;
4523
4524 /* setup Type 1 resources */
4525 if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4526
4527 /* setup io resources */
4528 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4529 resource->res1.length = sizeof(struct acpi_resource);
4530 memcpy(&resource->res1.data.io, &ioport->io1,
4531 sizeof(struct acpi_resource_io));
4532
4533 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4534 resource->res2.length = sizeof(struct acpi_resource);
4535 memcpy(&resource->res2.data.io, &ioport->io2,
4536 sizeof(struct acpi_resource_io));
4537
4538 /* setup irq resource */
4539 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4540 resource->res3.length = sizeof(struct acpi_resource);
4541 memcpy(&resource->res3.data.irq, &irq->irq,
4542 sizeof(struct acpi_resource_irq));
4543 /* we requested a shared irq */
4544 resource->res3.data.irq.sharable = ACPI_SHARED;
4545
4546 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4547 resource->res4.length = sizeof(struct acpi_resource);
4548 }
4549 /* setup Type 2/3 resources */
4550 else {
4551 /* setup io resource */
4552 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4553 resource->res1.length = sizeof(struct acpi_resource);
4554 memcpy(&resource->res1.data.io, &ioport->io1,
4555 sizeof(struct acpi_resource_io));
4556
4557 /* setup irq resource */
4558 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4559 resource->res2.length = sizeof(struct acpi_resource);
4560 memcpy(&resource->res2.data.irq, &irq->irq,
4561 sizeof(struct acpi_resource_irq));
4562 /* we requested a shared irq */
4563 resource->res2.data.irq.sharable = ACPI_SHARED;
4564
4565 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4566 resource->res3.length = sizeof(struct acpi_resource);
4567 }
4568
4569 /* Attempt to set the resource */
4570 dprintk("Evaluating _SRS\n");
4571 status = acpi_set_current_resources(device->handle, &buffer);
4572
4573 /* check for total failure */
4574 if (ACPI_FAILURE(status)) {
4575 pr_err("Error evaluating _SRS\n");
4576 result = -ENODEV;
4577 goto end;
4578 }
4579
4580 /* Necessary device initializations calls (from sonypi) */
4581 sony_pic_call1(0x82);
4582 sony_pic_call2(0x81, 0xff);
4583 sony_pic_call1(compat ? 0x92 : 0x82);
4584
4585 end:
4586 kfree(resource);
4587 return result;
4588 }
4589
4590 /*****************
4591 *
4592 * ISR: some event is available
4593 *
4594 *****************/
4595 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4596 {
4597 int i, j;
4598 u8 ev = 0;
4599 u8 data_mask = 0;
4600 u8 device_event = 0;
4601
4602 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4603
4604 ev = inb_p(dev->cur_ioport->io1.minimum);
4605 if (dev->cur_ioport->io2.minimum)
4606 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4607 else
4608 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4609 dev->evport_offset);
4610
4611 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4612 ev, data_mask, dev->cur_ioport->io1.minimum,
4613 dev->evport_offset);
4614
4615 if (ev == 0x00 || ev == 0xff)
4616 return IRQ_HANDLED;
4617
4618 for (i = 0; dev->event_types[i].mask; i++) {
4619
4620 if ((data_mask & dev->event_types[i].data) !=
4621 dev->event_types[i].data)
4622 continue;
4623
4624 if (!(mask & dev->event_types[i].mask))
4625 continue;
4626
4627 for (j = 0; dev->event_types[i].events[j].event; j++) {
4628 if (ev == dev->event_types[i].events[j].data) {
4629 device_event =
4630 dev->event_types[i].events[j].event;
4631 /* some events may require ignoring */
4632 if (!device_event)
4633 return IRQ_HANDLED;
4634 goto found;
4635 }
4636 }
4637 }
4638 /* Still not able to decode the event try to pass
4639 * it over to the minidriver
4640 */
4641 if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4642 return IRQ_HANDLED;
4643
4644 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4645 ev, data_mask, dev->cur_ioport->io1.minimum,
4646 dev->evport_offset);
4647 return IRQ_HANDLED;
4648
4649 found:
4650 sony_laptop_report_input_event(device_event);
4651 sonypi_compat_report_event(device_event);
4652 return IRQ_HANDLED;
4653 }
4654
4655 /*****************
4656 *
4657 * ACPI driver
4658 *
4659 *****************/
4660 static int sony_pic_remove(struct acpi_device *device)
4661 {
4662 struct sony_pic_ioport *io, *tmp_io;
4663 struct sony_pic_irq *irq, *tmp_irq;
4664
4665 if (sony_pic_disable(device)) {
4666 pr_err("Couldn't disable device\n");
4667 return -ENXIO;
4668 }
4669
4670 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4671 release_region(spic_dev.cur_ioport->io1.minimum,
4672 spic_dev.cur_ioport->io1.address_length);
4673 if (spic_dev.cur_ioport->io2.minimum)
4674 release_region(spic_dev.cur_ioport->io2.minimum,
4675 spic_dev.cur_ioport->io2.address_length);
4676
4677 sonypi_compat_exit();
4678
4679 sony_laptop_remove_input();
4680
4681 /* pf attrs */
4682 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4683 sony_pf_remove();
4684
4685 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4686 list_del(&io->list);
4687 kfree(io);
4688 }
4689 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4690 list_del(&irq->list);
4691 kfree(irq);
4692 }
4693 spic_dev.cur_ioport = NULL;
4694 spic_dev.cur_irq = NULL;
4695
4696 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4697 return 0;
4698 }
4699
4700 static int sony_pic_add(struct acpi_device *device)
4701 {
4702 int result;
4703 struct sony_pic_ioport *io, *tmp_io;
4704 struct sony_pic_irq *irq, *tmp_irq;
4705
4706 spic_dev.acpi_dev = device;
4707 strcpy(acpi_device_class(device), "sony/hotkey");
4708 sony_pic_detect_device_type(&spic_dev);
4709 mutex_init(&spic_dev.lock);
4710
4711 /* read _PRS resources */
4712 result = sony_pic_possible_resources(device);
4713 if (result) {
4714 pr_err("Unable to read possible resources\n");
4715 goto err_free_resources;
4716 }
4717
4718 /* setup input devices and helper fifo */
4719 result = sony_laptop_setup_input(device);
4720 if (result) {
4721 pr_err("Unable to create input devices\n");
4722 goto err_free_resources;
4723 }
4724
4725 result = sonypi_compat_init();
4726 if (result)
4727 goto err_remove_input;
4728
4729 /* request io port */
4730 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4731 if (request_region(io->io1.minimum, io->io1.address_length,
4732 "Sony Programmable I/O Device")) {
4733 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4734 io->io1.minimum, io->io1.maximum,
4735 io->io1.address_length);
4736 /* Type 1 have 2 ioports */
4737 if (io->io2.minimum) {
4738 if (request_region(io->io2.minimum,
4739 io->io2.address_length,
4740 "Sony Programmable I/O Device")) {
4741 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4742 io->io2.minimum, io->io2.maximum,
4743 io->io2.address_length);
4744 spic_dev.cur_ioport = io;
4745 break;
4746 }
4747 else {
4748 dprintk("Unable to get I/O port2: "
4749 "0x%.4x (0x%.4x) + 0x%.2x\n",
4750 io->io2.minimum, io->io2.maximum,
4751 io->io2.address_length);
4752 release_region(io->io1.minimum,
4753 io->io1.address_length);
4754 }
4755 }
4756 else {
4757 spic_dev.cur_ioport = io;
4758 break;
4759 }
4760 }
4761 }
4762 if (!spic_dev.cur_ioport) {
4763 pr_err("Failed to request_region\n");
4764 result = -ENODEV;
4765 goto err_remove_compat;
4766 }
4767
4768 /* request IRQ */
4769 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4770 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4771 0, "sony-laptop", &spic_dev)) {
4772 dprintk("IRQ: %d - triggering: %d - "
4773 "polarity: %d - shr: %d\n",
4774 irq->irq.interrupts[0],
4775 irq->irq.triggering,
4776 irq->irq.polarity,
4777 irq->irq.sharable);
4778 spic_dev.cur_irq = irq;
4779 break;
4780 }
4781 }
4782 if (!spic_dev.cur_irq) {
4783 pr_err("Failed to request_irq\n");
4784 result = -ENODEV;
4785 goto err_release_region;
4786 }
4787
4788 /* set resource status _SRS */
4789 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4790 if (result) {
4791 pr_err("Couldn't enable device\n");
4792 goto err_free_irq;
4793 }
4794
4795 spic_dev.bluetooth_power = -1;
4796 /* create device attributes */
4797 result = sony_pf_add();
4798 if (result)
4799 goto err_disable_device;
4800
4801 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4802 if (result)
4803 goto err_remove_pf;
4804
4805 pr_info("SPIC setup done.\n");
4806 return 0;
4807
4808 err_remove_pf:
4809 sony_pf_remove();
4810
4811 err_disable_device:
4812 sony_pic_disable(device);
4813
4814 err_free_irq:
4815 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4816
4817 err_release_region:
4818 release_region(spic_dev.cur_ioport->io1.minimum,
4819 spic_dev.cur_ioport->io1.address_length);
4820 if (spic_dev.cur_ioport->io2.minimum)
4821 release_region(spic_dev.cur_ioport->io2.minimum,
4822 spic_dev.cur_ioport->io2.address_length);
4823
4824 err_remove_compat:
4825 sonypi_compat_exit();
4826
4827 err_remove_input:
4828 sony_laptop_remove_input();
4829
4830 err_free_resources:
4831 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4832 list_del(&io->list);
4833 kfree(io);
4834 }
4835 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4836 list_del(&irq->list);
4837 kfree(irq);
4838 }
4839 spic_dev.cur_ioport = NULL;
4840 spic_dev.cur_irq = NULL;
4841
4842 return result;
4843 }
4844
4845 #ifdef CONFIG_PM_SLEEP
4846 static int sony_pic_suspend(struct device *dev)
4847 {
4848 if (sony_pic_disable(to_acpi_device(dev)))
4849 return -ENXIO;
4850 return 0;
4851 }
4852
4853 static int sony_pic_resume(struct device *dev)
4854 {
4855 sony_pic_enable(to_acpi_device(dev),
4856 spic_dev.cur_ioport, spic_dev.cur_irq);
4857 return 0;
4858 }
4859 #endif
4860
4861 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4862
4863 static const struct acpi_device_id sony_pic_device_ids[] = {
4864 {SONY_PIC_HID, 0},
4865 {"", 0},
4866 };
4867
4868 static struct acpi_driver sony_pic_driver = {
4869 .name = SONY_PIC_DRIVER_NAME,
4870 .class = SONY_PIC_CLASS,
4871 .ids = sony_pic_device_ids,
4872 .owner = THIS_MODULE,
4873 .ops = {
4874 .add = sony_pic_add,
4875 .remove = sony_pic_remove,
4876 },
4877 .drv.pm = &sony_pic_pm,
4878 };
4879
4880 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
4881 {
4882 .ident = "Sony Vaio",
4883 .matches = {
4884 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4885 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4886 },
4887 },
4888 {
4889 .ident = "Sony Vaio",
4890 .matches = {
4891 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4892 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4893 },
4894 },
4895 { }
4896 };
4897
4898 static int __init sony_laptop_init(void)
4899 {
4900 int result;
4901
4902 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4903 result = acpi_bus_register_driver(&sony_pic_driver);
4904 if (result) {
4905 pr_err("Unable to register SPIC driver\n");
4906 goto out;
4907 }
4908 spic_drv_registered = 1;
4909 }
4910
4911 result = acpi_bus_register_driver(&sony_nc_driver);
4912 if (result) {
4913 pr_err("Unable to register SNC driver\n");
4914 goto out_unregister_pic;
4915 }
4916
4917 return 0;
4918
4919 out_unregister_pic:
4920 if (spic_drv_registered)
4921 acpi_bus_unregister_driver(&sony_pic_driver);
4922 out:
4923 return result;
4924 }
4925
4926 static void __exit sony_laptop_exit(void)
4927 {
4928 acpi_bus_unregister_driver(&sony_nc_driver);
4929 if (spic_drv_registered)
4930 acpi_bus_unregister_driver(&sony_pic_driver);
4931 }
4932
4933 module_init(sony_laptop_init);
4934 module_exit(sony_laptop_exit);
Linux kernel - Deliverables
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