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26
27#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
29#include <linux/kernel.h>
30#include <linux/module.h>
31#include <linux/init.h>
32#include <linux/types.h>
33#include <linux/slab.h>
34#include <linux/input.h>
35#include <linux/input/sparse-keymap.h>
36#include <linux/fb.h>
37#include <linux/backlight.h>
38#include <linux/leds.h>
39#include <linux/rfkill.h>
40#include <linux/pci.h>
41#include <linux/pci_hotplug.h>
42#include <linux/hwmon.h>
43#include <linux/hwmon-sysfs.h>
44#include <linux/debugfs.h>
45#include <linux/seq_file.h>
46#include <linux/platform_device.h>
47#include <linux/thermal.h>
48#include <acpi/acpi_bus.h>
49#include <acpi/acpi_drivers.h>
50
51#include "asus-wmi.h"
52
53MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>, "
54 "Yong Wang <yong.y.wang@intel.com>");
55MODULE_DESCRIPTION("Asus Generic WMI Driver");
56MODULE_LICENSE("GPL");
57
58#define to_platform_driver(drv) \
59 (container_of((drv), struct platform_driver, driver))
60
61#define to_asus_wmi_driver(pdrv) \
62 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
63
64#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
65
66#define NOTIFY_BRNUP_MIN 0x11
67#define NOTIFY_BRNUP_MAX 0x1f
68#define NOTIFY_BRNDOWN_MIN 0x20
69#define NOTIFY_BRNDOWN_MAX 0x2e
70#define NOTIFY_KBD_BRTUP 0xc4
71#define NOTIFY_KBD_BRTDWN 0xc5
72
73
74#define ASUS_WMI_METHODID_SPEC 0x43455053
75#define ASUS_WMI_METHODID_SFBD 0x44424653
76#define ASUS_WMI_METHODID_GLCD 0x44434C47
77#define ASUS_WMI_METHODID_GPID 0x44495047
78#define ASUS_WMI_METHODID_QMOD 0x444F4D51
79#define ASUS_WMI_METHODID_SPLV 0x4C425053
80#define ASUS_WMI_METHODID_SFUN 0x4E554653
81#define ASUS_WMI_METHODID_SDSP 0x50534453
82#define ASUS_WMI_METHODID_GDSP 0x50534447
83#define ASUS_WMI_METHODID_DEVP 0x50564544
84#define ASUS_WMI_METHODID_OSVR 0x5256534F
85#define ASUS_WMI_METHODID_DSTS 0x53544344
86#define ASUS_WMI_METHODID_DSTS2 0x53545344
87#define ASUS_WMI_METHODID_BSTS 0x53545342
88#define ASUS_WMI_METHODID_DEVS 0x53564544
89#define ASUS_WMI_METHODID_CFVS 0x53564643
90#define ASUS_WMI_METHODID_KBFT 0x5446424B
91#define ASUS_WMI_METHODID_INIT 0x54494E49
92#define ASUS_WMI_METHODID_HKEY 0x59454B48
93
94#define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE
95
96
97#define ASUS_WMI_DEVID_HW_SWITCH 0x00010001
98#define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002
99#define ASUS_WMI_DEVID_CWAP 0x00010003
100#define ASUS_WMI_DEVID_WLAN 0x00010011
101#define ASUS_WMI_DEVID_BLUETOOTH 0x00010013
102#define ASUS_WMI_DEVID_GPS 0x00010015
103#define ASUS_WMI_DEVID_WIMAX 0x00010017
104#define ASUS_WMI_DEVID_WWAN3G 0x00010019
105#define ASUS_WMI_DEVID_UWB 0x00010021
106
107
108
109#define ASUS_WMI_DEVID_LED1 0x00020011
110#define ASUS_WMI_DEVID_LED2 0x00020012
111#define ASUS_WMI_DEVID_LED3 0x00020013
112#define ASUS_WMI_DEVID_LED4 0x00020014
113#define ASUS_WMI_DEVID_LED5 0x00020015
114#define ASUS_WMI_DEVID_LED6 0x00020016
115
116
117#define ASUS_WMI_DEVID_BACKLIGHT 0x00050011
118#define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012
119#define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021
120#define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022
121
122
123#define ASUS_WMI_DEVID_CAMERA 0x00060013
124
125
126#define ASUS_WMI_DEVID_CARDREADER 0x00080013
127
128
129#define ASUS_WMI_DEVID_TOUCHPAD 0x00100011
130#define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012
131
132
133#define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011
134#define ASUS_WMI_DEVID_FAN_CTRL 0x00110012
135
136
137#define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
138
139
140#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
141#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
142#define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000
143#define ASUS_WMI_DSTS_USER_BIT 0x00020000
144#define ASUS_WMI_DSTS_BIOS_BIT 0x00040000
145#define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
146#define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
147
148struct bios_args {
149 u32 arg0;
150 u32 arg1;
151} __packed;
152
153
154
155
156
157
158
159
160
161
162struct asus_wmi_debug {
163 struct dentry *root;
164 u32 method_id;
165 u32 dev_id;
166 u32 ctrl_param;
167};
168
169struct asus_rfkill {
170 struct asus_wmi *asus;
171 struct rfkill *rfkill;
172 u32 dev_id;
173};
174
175struct asus_wmi {
176 int dsts_id;
177 int spec;
178 int sfun;
179
180 struct input_dev *inputdev;
181 struct backlight_device *backlight_device;
182 struct device *hwmon_device;
183 struct platform_device *platform_device;
184
185 struct led_classdev tpd_led;
186 int tpd_led_wk;
187 struct led_classdev kbd_led;
188 int kbd_led_wk;
189 struct workqueue_struct *led_workqueue;
190 struct work_struct tpd_led_work;
191 struct work_struct kbd_led_work;
192
193 struct asus_rfkill wlan;
194 struct asus_rfkill bluetooth;
195 struct asus_rfkill wimax;
196 struct asus_rfkill wwan3g;
197 struct asus_rfkill gps;
198 struct asus_rfkill uwb;
199
200 struct hotplug_slot *hotplug_slot;
201 struct mutex hotplug_lock;
202 struct mutex wmi_lock;
203 struct workqueue_struct *hotplug_workqueue;
204 struct work_struct hotplug_work;
205
206 struct asus_wmi_debug debug;
207
208 struct asus_wmi_driver *driver;
209};
210
211static int asus_wmi_input_init(struct asus_wmi *asus)
212{
213 int err;
214
215 asus->inputdev = input_allocate_device();
216 if (!asus->inputdev)
217 return -ENOMEM;
218
219 asus->inputdev->name = asus->driver->input_name;
220 asus->inputdev->phys = asus->driver->input_phys;
221 asus->inputdev->id.bustype = BUS_HOST;
222 asus->inputdev->dev.parent = &asus->platform_device->dev;
223 set_bit(EV_REP, asus->inputdev->evbit);
224
225 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
226 if (err)
227 goto err_free_dev;
228
229 err = input_register_device(asus->inputdev);
230 if (err)
231 goto err_free_keymap;
232
233 return 0;
234
235err_free_keymap:
236 sparse_keymap_free(asus->inputdev);
237err_free_dev:
238 input_free_device(asus->inputdev);
239 return err;
240}
241
242static void asus_wmi_input_exit(struct asus_wmi *asus)
243{
244 if (asus->inputdev) {
245 sparse_keymap_free(asus->inputdev);
246 input_unregister_device(asus->inputdev);
247 }
248
249 asus->inputdev = NULL;
250}
251
252static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
253 u32 *retval)
254{
255 struct bios_args args = {
256 .arg0 = arg0,
257 .arg1 = arg1,
258 };
259 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
260 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
261 acpi_status status;
262 union acpi_object *obj;
263 u32 tmp;
264
265 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
266 &input, &output);
267
268 if (ACPI_FAILURE(status))
269 goto exit;
270
271 obj = (union acpi_object *)output.pointer;
272 if (obj && obj->type == ACPI_TYPE_INTEGER)
273 tmp = (u32) obj->integer.value;
274 else
275 tmp = 0;
276
277 if (retval)
278 *retval = tmp;
279
280 kfree(obj);
281
282exit:
283 if (ACPI_FAILURE(status))
284 return -EIO;
285
286 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
287 return -ENODEV;
288
289 return 0;
290}
291
292static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
293{
294 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
295}
296
297static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
298 u32 *retval)
299{
300 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
301 ctrl_param, retval);
302}
303
304
305static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
306 u32 dev_id, u32 mask)
307{
308 u32 retval = 0;
309 int err;
310
311 err = asus_wmi_get_devstate(asus, dev_id, &retval);
312
313 if (err < 0)
314 return err;
315
316 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
317 return -ENODEV;
318
319 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
320 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
321 return -ENODEV;
322 }
323
324 return retval & mask;
325}
326
327static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
328{
329 return asus_wmi_get_devstate_bits(asus, dev_id,
330 ASUS_WMI_DSTS_STATUS_BIT);
331}
332
333
334
335
336
337
338
339
340
341
342static void tpd_led_update(struct work_struct *work)
343{
344 int ctrl_param;
345 struct asus_wmi *asus;
346
347 asus = container_of(work, struct asus_wmi, tpd_led_work);
348
349 ctrl_param = asus->tpd_led_wk;
350 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
351}
352
353static void tpd_led_set(struct led_classdev *led_cdev,
354 enum led_brightness value)
355{
356 struct asus_wmi *asus;
357
358 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
359
360 asus->tpd_led_wk = !!value;
361 queue_work(asus->led_workqueue, &asus->tpd_led_work);
362}
363
364static int read_tpd_led_state(struct asus_wmi *asus)
365{
366 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
367}
368
369static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
370{
371 struct asus_wmi *asus;
372
373 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
374
375 return read_tpd_led_state(asus);
376}
377
378static void kbd_led_update(struct work_struct *work)
379{
380 int ctrl_param = 0;
381 struct asus_wmi *asus;
382
383 asus = container_of(work, struct asus_wmi, kbd_led_work);
384
385
386
387
388
389 if (asus->kbd_led_wk > 0)
390 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
391
392 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
393}
394
395static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
396{
397 int retval;
398
399
400
401
402
403
404
405 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
406 0xFFFF);
407
408
409 if (retval == 0x8000)
410 retval = 0;
411
412 if (retval >= 0) {
413 if (level)
414 *level = retval & 0x80 ? retval & 0x7F : 0;
415 if (env)
416 *env = (retval >> 8) & 0x7F;
417 retval = 0;
418 }
419
420 return retval;
421}
422
423static void kbd_led_set(struct led_classdev *led_cdev,
424 enum led_brightness value)
425{
426 struct asus_wmi *asus;
427
428 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
429
430 if (value > asus->kbd_led.max_brightness)
431 value = asus->kbd_led.max_brightness;
432 else if (value < 0)
433 value = 0;
434
435 asus->kbd_led_wk = value;
436 queue_work(asus->led_workqueue, &asus->kbd_led_work);
437}
438
439static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
440{
441 struct asus_wmi *asus;
442 int retval, value;
443
444 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
445
446 retval = kbd_led_read(asus, &value, NULL);
447
448 if (retval < 0)
449 return retval;
450
451 return value;
452}
453
454static void asus_wmi_led_exit(struct asus_wmi *asus)
455{
456 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
457 led_classdev_unregister(&asus->kbd_led);
458 if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
459 led_classdev_unregister(&asus->tpd_led);
460 if (asus->led_workqueue)
461 destroy_workqueue(asus->led_workqueue);
462}
463
464static int asus_wmi_led_init(struct asus_wmi *asus)
465{
466 int rv = 0;
467
468 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
469 if (!asus->led_workqueue)
470 return -ENOMEM;
471
472 if (read_tpd_led_state(asus) >= 0) {
473 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
474
475 asus->tpd_led.name = "asus::touchpad";
476 asus->tpd_led.brightness_set = tpd_led_set;
477 asus->tpd_led.brightness_get = tpd_led_get;
478 asus->tpd_led.max_brightness = 1;
479
480 rv = led_classdev_register(&asus->platform_device->dev,
481 &asus->tpd_led);
482 if (rv)
483 goto error;
484 }
485
486 if (kbd_led_read(asus, NULL, NULL) >= 0) {
487 INIT_WORK(&asus->kbd_led_work, kbd_led_update);
488
489 asus->kbd_led.name = "asus::kbd_backlight";
490 asus->kbd_led.brightness_set = kbd_led_set;
491 asus->kbd_led.brightness_get = kbd_led_get;
492 asus->kbd_led.max_brightness = 3;
493
494 rv = led_classdev_register(&asus->platform_device->dev,
495 &asus->kbd_led);
496 }
497
498error:
499 if (rv)
500 asus_wmi_led_exit(asus);
501
502 return rv;
503}
504
505
506
507
508
509static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
510{
511 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
512
513 if (result < 0)
514 return false;
515 return !result;
516}
517
518static void asus_rfkill_hotplug(struct asus_wmi *asus)
519{
520 struct pci_dev *dev;
521 struct pci_bus *bus;
522 bool blocked;
523 bool absent;
524 u32 l;
525
526 mutex_lock(&asus->wmi_lock);
527 blocked = asus_wlan_rfkill_blocked(asus);
528 mutex_unlock(&asus->wmi_lock);
529
530 mutex_lock(&asus->hotplug_lock);
531
532 if (asus->wlan.rfkill)
533 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
534
535 if (asus->hotplug_slot) {
536 bus = pci_find_bus(0, 1);
537 if (!bus) {
538 pr_warn("Unable to find PCI bus 1?\n");
539 goto out_unlock;
540 }
541
542 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
543 pr_err("Unable to read PCI config space?\n");
544 goto out_unlock;
545 }
546 absent = (l == 0xffffffff);
547
548 if (blocked != absent) {
549 pr_warn("BIOS says wireless lan is %s, "
550 "but the pci device is %s\n",
551 blocked ? "blocked" : "unblocked",
552 absent ? "absent" : "present");
553 pr_warn("skipped wireless hotplug as probably "
554 "inappropriate for this model\n");
555 goto out_unlock;
556 }
557
558 if (!blocked) {
559 dev = pci_get_slot(bus, 0);
560 if (dev) {
561
562 pci_dev_put(dev);
563 goto out_unlock;
564 }
565 dev = pci_scan_single_device(bus, 0);
566 if (dev) {
567 pci_bus_assign_resources(bus);
568 if (pci_bus_add_device(dev))
569 pr_err("Unable to hotplug wifi\n");
570 }
571 } else {
572 dev = pci_get_slot(bus, 0);
573 if (dev) {
574 pci_remove_bus_device(dev);
575 pci_dev_put(dev);
576 }
577 }
578 }
579
580out_unlock:
581 mutex_unlock(&asus->hotplug_lock);
582}
583
584static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
585{
586 struct asus_wmi *asus = data;
587
588 if (event != ACPI_NOTIFY_BUS_CHECK)
589 return;
590
591
592
593
594
595
596
597
598 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
599}
600
601static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
602{
603 acpi_status status;
604 acpi_handle handle;
605
606 status = acpi_get_handle(NULL, node, &handle);
607
608 if (ACPI_SUCCESS(status)) {
609 status = acpi_install_notify_handler(handle,
610 ACPI_SYSTEM_NOTIFY,
611 asus_rfkill_notify, asus);
612 if (ACPI_FAILURE(status))
613 pr_warn("Failed to register notify on %s\n", node);
614 } else
615 return -ENODEV;
616
617 return 0;
618}
619
620static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
621{
622 acpi_status status = AE_OK;
623 acpi_handle handle;
624
625 status = acpi_get_handle(NULL, node, &handle);
626
627 if (ACPI_SUCCESS(status)) {
628 status = acpi_remove_notify_handler(handle,
629 ACPI_SYSTEM_NOTIFY,
630 asus_rfkill_notify);
631 if (ACPI_FAILURE(status))
632 pr_err("Error removing rfkill notify handler %s\n",
633 node);
634 }
635}
636
637static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
638 u8 *value)
639{
640 struct asus_wmi *asus = hotplug_slot->private;
641 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
642
643 if (result < 0)
644 return result;
645
646 *value = !!result;
647 return 0;
648}
649
650static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
651{
652 kfree(hotplug_slot->info);
653 kfree(hotplug_slot);
654}
655
656static struct hotplug_slot_ops asus_hotplug_slot_ops = {
657 .owner = THIS_MODULE,
658 .get_adapter_status = asus_get_adapter_status,
659 .get_power_status = asus_get_adapter_status,
660};
661
662static void asus_hotplug_work(struct work_struct *work)
663{
664 struct asus_wmi *asus;
665
666 asus = container_of(work, struct asus_wmi, hotplug_work);
667 asus_rfkill_hotplug(asus);
668}
669
670static int asus_setup_pci_hotplug(struct asus_wmi *asus)
671{
672 int ret = -ENOMEM;
673 struct pci_bus *bus = pci_find_bus(0, 1);
674
675 if (!bus) {
676 pr_err("Unable to find wifi PCI bus\n");
677 return -ENODEV;
678 }
679
680 asus->hotplug_workqueue =
681 create_singlethread_workqueue("hotplug_workqueue");
682 if (!asus->hotplug_workqueue)
683 goto error_workqueue;
684
685 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
686
687 asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
688 if (!asus->hotplug_slot)
689 goto error_slot;
690
691 asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
692 GFP_KERNEL);
693 if (!asus->hotplug_slot->info)
694 goto error_info;
695
696 asus->hotplug_slot->private = asus;
697 asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
698 asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
699 asus_get_adapter_status(asus->hotplug_slot,
700 &asus->hotplug_slot->info->adapter_status);
701
702 ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
703 if (ret) {
704 pr_err("Unable to register hotplug slot - %d\n", ret);
705 goto error_register;
706 }
707
708 return 0;
709
710error_register:
711 kfree(asus->hotplug_slot->info);
712error_info:
713 kfree(asus->hotplug_slot);
714 asus->hotplug_slot = NULL;
715error_slot:
716 destroy_workqueue(asus->hotplug_workqueue);
717error_workqueue:
718 return ret;
719}
720
721
722
723
724static int asus_rfkill_set(void *data, bool blocked)
725{
726 struct asus_rfkill *priv = data;
727 u32 ctrl_param = !blocked;
728
729 return asus_wmi_set_devstate(priv->dev_id, ctrl_param, NULL);
730}
731
732static void asus_rfkill_query(struct rfkill *rfkill, void *data)
733{
734 struct asus_rfkill *priv = data;
735 int result;
736
737 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
738
739 if (result < 0)
740 return;
741
742 rfkill_set_sw_state(priv->rfkill, !result);
743}
744
745static int asus_rfkill_wlan_set(void *data, bool blocked)
746{
747 struct asus_rfkill *priv = data;
748 struct asus_wmi *asus = priv->asus;
749 int ret;
750
751
752
753
754
755
756
757
758 mutex_lock(&asus->wmi_lock);
759 ret = asus_rfkill_set(data, blocked);
760 mutex_unlock(&asus->wmi_lock);
761 return ret;
762}
763
764static const struct rfkill_ops asus_rfkill_wlan_ops = {
765 .set_block = asus_rfkill_wlan_set,
766 .query = asus_rfkill_query,
767};
768
769static const struct rfkill_ops asus_rfkill_ops = {
770 .set_block = asus_rfkill_set,
771 .query = asus_rfkill_query,
772};
773
774static int asus_new_rfkill(struct asus_wmi *asus,
775 struct asus_rfkill *arfkill,
776 const char *name, enum rfkill_type type, int dev_id)
777{
778 int result = asus_wmi_get_devstate_simple(asus, dev_id);
779 struct rfkill **rfkill = &arfkill->rfkill;
780
781 if (result < 0)
782 return result;
783
784 arfkill->dev_id = dev_id;
785 arfkill->asus = asus;
786
787 if (dev_id == ASUS_WMI_DEVID_WLAN && asus->driver->hotplug_wireless)
788 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
789 &asus_rfkill_wlan_ops, arfkill);
790 else
791 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
792 &asus_rfkill_ops, arfkill);
793
794 if (!*rfkill)
795 return -EINVAL;
796
797 rfkill_init_sw_state(*rfkill, !result);
798 result = rfkill_register(*rfkill);
799 if (result) {
800 rfkill_destroy(*rfkill);
801 *rfkill = NULL;
802 return result;
803 }
804 return 0;
805}
806
807static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
808{
809 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
810 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
811 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
812 if (asus->wlan.rfkill) {
813 rfkill_unregister(asus->wlan.rfkill);
814 rfkill_destroy(asus->wlan.rfkill);
815 asus->wlan.rfkill = NULL;
816 }
817
818
819
820
821 asus_rfkill_hotplug(asus);
822 if (asus->hotplug_slot)
823 pci_hp_deregister(asus->hotplug_slot);
824 if (asus->hotplug_workqueue)
825 destroy_workqueue(asus->hotplug_workqueue);
826
827 if (asus->bluetooth.rfkill) {
828 rfkill_unregister(asus->bluetooth.rfkill);
829 rfkill_destroy(asus->bluetooth.rfkill);
830 asus->bluetooth.rfkill = NULL;
831 }
832 if (asus->wimax.rfkill) {
833 rfkill_unregister(asus->wimax.rfkill);
834 rfkill_destroy(asus->wimax.rfkill);
835 asus->wimax.rfkill = NULL;
836 }
837 if (asus->wwan3g.rfkill) {
838 rfkill_unregister(asus->wwan3g.rfkill);
839 rfkill_destroy(asus->wwan3g.rfkill);
840 asus->wwan3g.rfkill = NULL;
841 }
842 if (asus->gps.rfkill) {
843 rfkill_unregister(asus->gps.rfkill);
844 rfkill_destroy(asus->gps.rfkill);
845 asus->gps.rfkill = NULL;
846 }
847 if (asus->uwb.rfkill) {
848 rfkill_unregister(asus->uwb.rfkill);
849 rfkill_destroy(asus->uwb.rfkill);
850 asus->uwb.rfkill = NULL;
851 }
852}
853
854static int asus_wmi_rfkill_init(struct asus_wmi *asus)
855{
856 int result = 0;
857
858 mutex_init(&asus->hotplug_lock);
859 mutex_init(&asus->wmi_lock);
860
861 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
862 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
863
864 if (result && result != -ENODEV)
865 goto exit;
866
867 result = asus_new_rfkill(asus, &asus->bluetooth,
868 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
869 ASUS_WMI_DEVID_BLUETOOTH);
870
871 if (result && result != -ENODEV)
872 goto exit;
873
874 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
875 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
876
877 if (result && result != -ENODEV)
878 goto exit;
879
880 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
881 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
882
883 if (result && result != -ENODEV)
884 goto exit;
885
886 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
887 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
888
889 if (result && result != -ENODEV)
890 goto exit;
891
892 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
893 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
894
895 if (result && result != -ENODEV)
896 goto exit;
897
898 if (!asus->driver->hotplug_wireless)
899 goto exit;
900
901 result = asus_setup_pci_hotplug(asus);
902
903
904
905
906 if (result == -EBUSY)
907 result = 0;
908
909 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
910 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
911 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
912
913
914
915
916 asus_rfkill_hotplug(asus);
917
918exit:
919 if (result && result != -ENODEV)
920 asus_wmi_rfkill_exit(asus);
921
922 if (result == -ENODEV)
923 result = 0;
924
925 return result;
926}
927
928
929
930
931static ssize_t asus_hwmon_pwm1(struct device *dev,
932 struct device_attribute *attr,
933 char *buf)
934{
935 struct asus_wmi *asus = dev_get_drvdata(dev);
936 u32 value;
937 int err;
938
939 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
940
941 if (err < 0)
942 return err;
943
944 value &= 0xFF;
945
946 if (value == 1)
947 value = 85;
948 else if (value == 2)
949 value = 170;
950 else if (value == 3)
951 value = 255;
952 else if (value != 0) {
953 pr_err("Unknown fan speed %#x", value);
954 value = -1;
955 }
956
957 return sprintf(buf, "%d\n", value);
958}
959
960static ssize_t asus_hwmon_temp1(struct device *dev,
961 struct device_attribute *attr,
962 char *buf)
963{
964 struct asus_wmi *asus = dev_get_drvdata(dev);
965 u32 value;
966 int err;
967
968 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
969
970 if (err < 0)
971 return err;
972
973 value = KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000;
974
975 return sprintf(buf, "%d\n", value);
976}
977
978static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL, 0);
979static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL, 0);
980
981static ssize_t
982show_name(struct device *dev, struct device_attribute *attr, char *buf)
983{
984 return sprintf(buf, "asus\n");
985}
986static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
987
988static struct attribute *hwmon_attributes[] = {
989 &sensor_dev_attr_pwm1.dev_attr.attr,
990 &sensor_dev_attr_temp1_input.dev_attr.attr,
991 &sensor_dev_attr_name.dev_attr.attr,
992 NULL
993};
994
995static mode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
996 struct attribute *attr, int idx)
997{
998 struct device *dev = container_of(kobj, struct device, kobj);
999 struct platform_device *pdev = to_platform_device(dev->parent);
1000 struct asus_wmi *asus = platform_get_drvdata(pdev);
1001 bool ok = true;
1002 int dev_id = -1;
1003 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
1004
1005 if (attr == &sensor_dev_attr_pwm1.dev_attr.attr)
1006 dev_id = ASUS_WMI_DEVID_FAN_CTRL;
1007 else if (attr == &sensor_dev_attr_temp1_input.dev_attr.attr)
1008 dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;
1009
1010 if (dev_id != -1) {
1011 int err = asus_wmi_get_devstate(asus, dev_id, &value);
1012
1013 if (err < 0)
1014 return 0;
1015 }
1016
1017 if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
1018
1019
1020
1021
1022
1023
1024
1025
1026 if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1027 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
1028 ok = false;
1029 } else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
1030
1031 if (value == 0)
1032 ok = false;
1033 }
1034
1035 return ok ? attr->mode : 0;
1036}
1037
1038static struct attribute_group hwmon_attribute_group = {
1039 .is_visible = asus_hwmon_sysfs_is_visible,
1040 .attrs = hwmon_attributes
1041};
1042
1043static void asus_wmi_hwmon_exit(struct asus_wmi *asus)
1044{
1045 struct device *hwmon;
1046
1047 hwmon = asus->hwmon_device;
1048 if (!hwmon)
1049 return;
1050 sysfs_remove_group(&hwmon->kobj, &hwmon_attribute_group);
1051 hwmon_device_unregister(hwmon);
1052 asus->hwmon_device = NULL;
1053}
1054
1055static int asus_wmi_hwmon_init(struct asus_wmi *asus)
1056{
1057 struct device *hwmon;
1058 int result;
1059
1060 hwmon = hwmon_device_register(&asus->platform_device->dev);
1061 if (IS_ERR(hwmon)) {
1062 pr_err("Could not register asus hwmon device\n");
1063 return PTR_ERR(hwmon);
1064 }
1065 dev_set_drvdata(hwmon, asus);
1066 asus->hwmon_device = hwmon;
1067 result = sysfs_create_group(&hwmon->kobj, &hwmon_attribute_group);
1068 if (result)
1069 asus_wmi_hwmon_exit(asus);
1070 return result;
1071}
1072
1073
1074
1075
1076static int read_backlight_power(struct asus_wmi *asus)
1077{
1078 int ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BACKLIGHT);
1079
1080 if (ret < 0)
1081 return ret;
1082
1083 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
1084}
1085
1086static int read_brightness_max(struct asus_wmi *asus)
1087{
1088 u32 retval;
1089 int err;
1090
1091 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1092
1093 if (err < 0)
1094 return err;
1095
1096 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
1097 retval >>= 8;
1098
1099 if (!retval)
1100 return -ENODEV;
1101
1102 return retval;
1103}
1104
1105static int read_brightness(struct backlight_device *bd)
1106{
1107 struct asus_wmi *asus = bl_get_data(bd);
1108 u32 retval;
1109 int err;
1110
1111 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1112
1113 if (err < 0)
1114 return err;
1115
1116 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1117}
1118
1119static int update_bl_status(struct backlight_device *bd)
1120{
1121 struct asus_wmi *asus = bl_get_data(bd);
1122 u32 ctrl_param;
1123 int power, err;
1124
1125 ctrl_param = bd->props.brightness;
1126
1127 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
1128 ctrl_param, NULL);
1129
1130 if (err < 0)
1131 return err;
1132
1133 power = read_backlight_power(asus);
1134 if (power != -ENODEV && bd->props.power != power) {
1135 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
1136 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
1137 ctrl_param, NULL);
1138 }
1139 return err;
1140}
1141
1142static const struct backlight_ops asus_wmi_bl_ops = {
1143 .get_brightness = read_brightness,
1144 .update_status = update_bl_status,
1145};
1146
1147static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
1148{
1149 struct backlight_device *bd = asus->backlight_device;
1150 int old = bd->props.brightness;
1151 int new = old;
1152
1153 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1154 new = code - NOTIFY_BRNUP_MIN + 1;
1155 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
1156 new = code - NOTIFY_BRNDOWN_MIN;
1157
1158 bd->props.brightness = new;
1159 backlight_update_status(bd);
1160 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
1161
1162 return old;
1163}
1164
1165static int asus_wmi_backlight_init(struct asus_wmi *asus)
1166{
1167 struct backlight_device *bd;
1168 struct backlight_properties props;
1169 int max;
1170 int power;
1171
1172 max = read_brightness_max(asus);
1173
1174 if (max == -ENODEV)
1175 max = 0;
1176 else if (max < 0)
1177 return max;
1178
1179 power = read_backlight_power(asus);
1180
1181 if (power == -ENODEV)
1182 power = FB_BLANK_UNBLANK;
1183 else if (power < 0)
1184 return power;
1185
1186 memset(&props, 0, sizeof(struct backlight_properties));
1187 props.type = BACKLIGHT_PLATFORM;
1188 props.max_brightness = max;
1189 bd = backlight_device_register(asus->driver->name,
1190 &asus->platform_device->dev, asus,
1191 &asus_wmi_bl_ops, &props);
1192 if (IS_ERR(bd)) {
1193 pr_err("Could not register backlight device\n");
1194 return PTR_ERR(bd);
1195 }
1196
1197 asus->backlight_device = bd;
1198
1199 bd->props.brightness = read_brightness(bd);
1200 bd->props.power = power;
1201 backlight_update_status(bd);
1202
1203 return 0;
1204}
1205
1206static void asus_wmi_backlight_exit(struct asus_wmi *asus)
1207{
1208 if (asus->backlight_device)
1209 backlight_device_unregister(asus->backlight_device);
1210
1211 asus->backlight_device = NULL;
1212}
1213
1214static void asus_wmi_notify(u32 value, void *context)
1215{
1216 struct asus_wmi *asus = context;
1217 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1218 union acpi_object *obj;
1219 acpi_status status;
1220 int code;
1221 int orig_code;
1222 unsigned int key_value = 1;
1223 bool autorelease = 1;
1224
1225 status = wmi_get_event_data(value, &response);
1226 if (status != AE_OK) {
1227 pr_err("bad event status 0x%x\n", status);
1228 return;
1229 }
1230
1231 obj = (union acpi_object *)response.pointer;
1232
1233 if (!obj || obj->type != ACPI_TYPE_INTEGER)
1234 goto exit;
1235
1236 code = obj->integer.value;
1237 orig_code = code;
1238
1239 if (asus->driver->key_filter) {
1240 asus->driver->key_filter(asus->driver, &code, &key_value,
1241 &autorelease);
1242 if (code == ASUS_WMI_KEY_IGNORE)
1243 goto exit;
1244 }
1245
1246 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1247 code = NOTIFY_BRNUP_MIN;
1248 else if (code >= NOTIFY_BRNDOWN_MIN &&
1249 code <= NOTIFY_BRNDOWN_MAX)
1250 code = NOTIFY_BRNDOWN_MIN;
1251
1252 if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
1253 if (!acpi_video_backlight_support())
1254 asus_wmi_backlight_notify(asus, orig_code);
1255 } else if (!sparse_keymap_report_event(asus->inputdev, code,
1256 key_value, autorelease))
1257 pr_info("Unknown key %x pressed\n", code);
1258
1259exit:
1260 kfree(obj);
1261}
1262
1263
1264
1265
1266static int parse_arg(const char *buf, unsigned long count, int *val)
1267{
1268 if (!count)
1269 return 0;
1270 if (sscanf(buf, "%i", val) != 1)
1271 return -EINVAL;
1272 return count;
1273}
1274
1275static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
1276 const char *buf, size_t count)
1277{
1278 u32 retval;
1279 int rv, err, value;
1280
1281 value = asus_wmi_get_devstate_simple(asus, devid);
1282 if (value == -ENODEV)
1283 return value;
1284
1285 rv = parse_arg(buf, count, &value);
1286 err = asus_wmi_set_devstate(devid, value, &retval);
1287
1288 if (err < 0)
1289 return err;
1290
1291 return rv;
1292}
1293
1294static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
1295{
1296 int value = asus_wmi_get_devstate_simple(asus, devid);
1297
1298 if (value < 0)
1299 return value;
1300
1301 return sprintf(buf, "%d\n", value);
1302}
1303
1304#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
1305 static ssize_t show_##_name(struct device *dev, \
1306 struct device_attribute *attr, \
1307 char *buf) \
1308 { \
1309 struct asus_wmi *asus = dev_get_drvdata(dev); \
1310 \
1311 return show_sys_wmi(asus, _cm, buf); \
1312 } \
1313 static ssize_t store_##_name(struct device *dev, \
1314 struct device_attribute *attr, \
1315 const char *buf, size_t count) \
1316 { \
1317 struct asus_wmi *asus = dev_get_drvdata(dev); \
1318 \
1319 return store_sys_wmi(asus, _cm, buf, count); \
1320 } \
1321 static struct device_attribute dev_attr_##_name = { \
1322 .attr = { \
1323 .name = __stringify(_name), \
1324 .mode = _mode }, \
1325 .show = show_##_name, \
1326 .store = store_##_name, \
1327 }
1328
1329ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
1330ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
1331ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
1332
1333static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
1334 const char *buf, size_t count)
1335{
1336 int value, rv;
1337
1338 if (!count || sscanf(buf, "%i", &value) != 1)
1339 return -EINVAL;
1340 if (value < 0 || value > 2)
1341 return -EINVAL;
1342
1343 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
1344 if (rv < 0)
1345 return rv;
1346
1347 return count;
1348}
1349
1350static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
1351
1352static struct attribute *platform_attributes[] = {
1353 &dev_attr_cpufv.attr,
1354 &dev_attr_camera.attr,
1355 &dev_attr_cardr.attr,
1356 &dev_attr_touchpad.attr,
1357 NULL
1358};
1359
1360static mode_t asus_sysfs_is_visible(struct kobject *kobj,
1361 struct attribute *attr, int idx)
1362{
1363 struct device *dev = container_of(kobj, struct device, kobj);
1364 struct platform_device *pdev = to_platform_device(dev);
1365 struct asus_wmi *asus = platform_get_drvdata(pdev);
1366 bool ok = true;
1367 int devid = -1;
1368
1369 if (attr == &dev_attr_camera.attr)
1370 devid = ASUS_WMI_DEVID_CAMERA;
1371 else if (attr == &dev_attr_cardr.attr)
1372 devid = ASUS_WMI_DEVID_CARDREADER;
1373 else if (attr == &dev_attr_touchpad.attr)
1374 devid = ASUS_WMI_DEVID_TOUCHPAD;
1375
1376 if (devid != -1)
1377 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
1378
1379 return ok ? attr->mode : 0;
1380}
1381
1382static struct attribute_group platform_attribute_group = {
1383 .is_visible = asus_sysfs_is_visible,
1384 .attrs = platform_attributes
1385};
1386
1387static void asus_wmi_sysfs_exit(struct platform_device *device)
1388{
1389 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
1390}
1391
1392static int asus_wmi_sysfs_init(struct platform_device *device)
1393{
1394 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
1395}
1396
1397
1398
1399
1400static int asus_wmi_platform_init(struct asus_wmi *asus)
1401{
1402 int rv;
1403
1404
1405 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
1406 pr_info("Initialization: %#x", rv);
1407
1408
1409 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
1410 pr_info("BIOS WMI version: %d.%d", rv >> 16, rv & 0xFF);
1411 asus->spec = rv;
1412 }
1413
1414
1415
1416
1417
1418
1419
1420 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
1421 pr_info("SFUN value: %#x", rv);
1422 asus->sfun = rv;
1423 }
1424
1425
1426
1427
1428
1429
1430
1431
1432 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
1433 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
1434 else if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS2, 0, 0, NULL))
1435 asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
1436
1437 if (!asus->dsts_id) {
1438 pr_err("Can't find DSTS");
1439 return -ENODEV;
1440 }
1441
1442
1443
1444 if (asus->driver->wapf >= 0)
1445 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
1446 asus->driver->wapf, NULL);
1447
1448 return asus_wmi_sysfs_init(asus->platform_device);
1449}
1450
1451static void asus_wmi_platform_exit(struct asus_wmi *asus)
1452{
1453 asus_wmi_sysfs_exit(asus->platform_device);
1454}
1455
1456
1457
1458
1459struct asus_wmi_debugfs_node {
1460 struct asus_wmi *asus;
1461 char *name;
1462 int (*show) (struct seq_file *m, void *data);
1463};
1464
1465static int show_dsts(struct seq_file *m, void *data)
1466{
1467 struct asus_wmi *asus = m->private;
1468 int err;
1469 u32 retval = -1;
1470
1471 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
1472
1473 if (err < 0)
1474 return err;
1475
1476 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
1477
1478 return 0;
1479}
1480
1481static int show_devs(struct seq_file *m, void *data)
1482{
1483 struct asus_wmi *asus = m->private;
1484 int err;
1485 u32 retval = -1;
1486
1487 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
1488 &retval);
1489
1490 if (err < 0)
1491 return err;
1492
1493 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
1494 asus->debug.ctrl_param, retval);
1495
1496 return 0;
1497}
1498
1499static int show_call(struct seq_file *m, void *data)
1500{
1501 struct asus_wmi *asus = m->private;
1502 struct bios_args args = {
1503 .arg0 = asus->debug.dev_id,
1504 .arg1 = asus->debug.ctrl_param,
1505 };
1506 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1507 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1508 union acpi_object *obj;
1509 acpi_status status;
1510
1511 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
1512 1, asus->debug.method_id,
1513 &input, &output);
1514
1515 if (ACPI_FAILURE(status))
1516 return -EIO;
1517
1518 obj = (union acpi_object *)output.pointer;
1519 if (obj && obj->type == ACPI_TYPE_INTEGER)
1520 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
1521 asus->debug.dev_id, asus->debug.ctrl_param,
1522 (u32) obj->integer.value);
1523 else
1524 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
1525 asus->debug.dev_id, asus->debug.ctrl_param,
1526 obj ? obj->type : -1);
1527
1528 kfree(obj);
1529
1530 return 0;
1531}
1532
1533static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
1534 {NULL, "devs", show_devs},
1535 {NULL, "dsts", show_dsts},
1536 {NULL, "call", show_call},
1537};
1538
1539static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
1540{
1541 struct asus_wmi_debugfs_node *node = inode->i_private;
1542
1543 return single_open(file, node->show, node->asus);
1544}
1545
1546static const struct file_operations asus_wmi_debugfs_io_ops = {
1547 .owner = THIS_MODULE,
1548 .open = asus_wmi_debugfs_open,
1549 .read = seq_read,
1550 .llseek = seq_lseek,
1551 .release = single_release,
1552};
1553
1554static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
1555{
1556 debugfs_remove_recursive(asus->debug.root);
1557}
1558
1559static int asus_wmi_debugfs_init(struct asus_wmi *asus)
1560{
1561 struct dentry *dent;
1562 int i;
1563
1564 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
1565 if (!asus->debug.root) {
1566 pr_err("failed to create debugfs directory");
1567 goto error_debugfs;
1568 }
1569
1570 dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
1571 asus->debug.root, &asus->debug.method_id);
1572 if (!dent)
1573 goto error_debugfs;
1574
1575 dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
1576 asus->debug.root, &asus->debug.dev_id);
1577 if (!dent)
1578 goto error_debugfs;
1579
1580 dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
1581 asus->debug.root, &asus->debug.ctrl_param);
1582 if (!dent)
1583 goto error_debugfs;
1584
1585 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
1586 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
1587
1588 node->asus = asus;
1589 dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
1590 asus->debug.root, node,
1591 &asus_wmi_debugfs_io_ops);
1592 if (!dent) {
1593 pr_err("failed to create debug file: %s\n", node->name);
1594 goto error_debugfs;
1595 }
1596 }
1597
1598 return 0;
1599
1600error_debugfs:
1601 asus_wmi_debugfs_exit(asus);
1602 return -ENOMEM;
1603}
1604
1605
1606
1607
1608static int asus_wmi_add(struct platform_device *pdev)
1609{
1610 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1611 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1612 struct asus_wmi *asus;
1613 acpi_status status;
1614 int err;
1615
1616 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
1617 if (!asus)
1618 return -ENOMEM;
1619
1620 asus->driver = wdrv;
1621 asus->platform_device = pdev;
1622 wdrv->platform_device = pdev;
1623 platform_set_drvdata(asus->platform_device, asus);
1624
1625 if (wdrv->quirks)
1626 wdrv->quirks(asus->driver);
1627
1628 err = asus_wmi_platform_init(asus);
1629 if (err)
1630 goto fail_platform;
1631
1632 err = asus_wmi_input_init(asus);
1633 if (err)
1634 goto fail_input;
1635
1636 err = asus_wmi_hwmon_init(asus);
1637 if (err)
1638 goto fail_hwmon;
1639
1640 err = asus_wmi_led_init(asus);
1641 if (err)
1642 goto fail_leds;
1643
1644 err = asus_wmi_rfkill_init(asus);
1645 if (err)
1646 goto fail_rfkill;
1647
1648 if (!acpi_video_backlight_support()) {
1649 err = asus_wmi_backlight_init(asus);
1650 if (err && err != -ENODEV)
1651 goto fail_backlight;
1652 } else
1653 pr_info("Backlight controlled by ACPI video driver\n");
1654
1655 status = wmi_install_notify_handler(asus->driver->event_guid,
1656 asus_wmi_notify, asus);
1657 if (ACPI_FAILURE(status)) {
1658 pr_err("Unable to register notify handler - %d\n", status);
1659 err = -ENODEV;
1660 goto fail_wmi_handler;
1661 }
1662
1663 err = asus_wmi_debugfs_init(asus);
1664 if (err)
1665 goto fail_debugfs;
1666
1667 return 0;
1668
1669fail_debugfs:
1670 wmi_remove_notify_handler(asus->driver->event_guid);
1671fail_wmi_handler:
1672 asus_wmi_backlight_exit(asus);
1673fail_backlight:
1674 asus_wmi_rfkill_exit(asus);
1675fail_rfkill:
1676 asus_wmi_led_exit(asus);
1677fail_leds:
1678 asus_wmi_hwmon_exit(asus);
1679fail_hwmon:
1680 asus_wmi_input_exit(asus);
1681fail_input:
1682 asus_wmi_platform_exit(asus);
1683fail_platform:
1684 kfree(asus);
1685 return err;
1686}
1687
1688static int asus_wmi_remove(struct platform_device *device)
1689{
1690 struct asus_wmi *asus;
1691
1692 asus = platform_get_drvdata(device);
1693 wmi_remove_notify_handler(asus->driver->event_guid);
1694 asus_wmi_backlight_exit(asus);
1695 asus_wmi_input_exit(asus);
1696 asus_wmi_hwmon_exit(asus);
1697 asus_wmi_led_exit(asus);
1698 asus_wmi_rfkill_exit(asus);
1699 asus_wmi_debugfs_exit(asus);
1700 asus_wmi_platform_exit(asus);
1701
1702 kfree(asus);
1703 return 0;
1704}
1705
1706
1707
1708
1709static int asus_hotk_thaw(struct device *device)
1710{
1711 struct asus_wmi *asus = dev_get_drvdata(device);
1712
1713 if (asus->wlan.rfkill) {
1714 bool wlan;
1715
1716
1717
1718
1719
1720
1721 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1722 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
1723 }
1724
1725 return 0;
1726}
1727
1728static int asus_hotk_restore(struct device *device)
1729{
1730 struct asus_wmi *asus = dev_get_drvdata(device);
1731 int bl;
1732
1733
1734 if (asus->wlan.rfkill)
1735 asus_rfkill_hotplug(asus);
1736
1737 if (asus->bluetooth.rfkill) {
1738 bl = !asus_wmi_get_devstate_simple(asus,
1739 ASUS_WMI_DEVID_BLUETOOTH);
1740 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
1741 }
1742 if (asus->wimax.rfkill) {
1743 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
1744 rfkill_set_sw_state(asus->wimax.rfkill, bl);
1745 }
1746 if (asus->wwan3g.rfkill) {
1747 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
1748 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
1749 }
1750 if (asus->gps.rfkill) {
1751 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
1752 rfkill_set_sw_state(asus->gps.rfkill, bl);
1753 }
1754 if (asus->uwb.rfkill) {
1755 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
1756 rfkill_set_sw_state(asus->uwb.rfkill, bl);
1757 }
1758
1759 return 0;
1760}
1761
1762static const struct dev_pm_ops asus_pm_ops = {
1763 .thaw = asus_hotk_thaw,
1764 .restore = asus_hotk_restore,
1765};
1766
1767static int asus_wmi_probe(struct platform_device *pdev)
1768{
1769 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1770 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1771 int ret;
1772
1773 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1774 pr_warn("Management GUID not found\n");
1775 return -ENODEV;
1776 }
1777
1778 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
1779 pr_warn("Event GUID not found\n");
1780 return -ENODEV;
1781 }
1782
1783 if (wdrv->probe) {
1784 ret = wdrv->probe(pdev);
1785 if (ret)
1786 return ret;
1787 }
1788
1789 return asus_wmi_add(pdev);
1790}
1791
1792static bool used;
1793
1794int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
1795{
1796 struct platform_driver *platform_driver;
1797 struct platform_device *platform_device;
1798
1799 if (used)
1800 return -EBUSY;
1801
1802 platform_driver = &driver->platform_driver;
1803 platform_driver->remove = asus_wmi_remove;
1804 platform_driver->driver.owner = driver->owner;
1805 platform_driver->driver.name = driver->name;
1806 platform_driver->driver.pm = &asus_pm_ops;
1807
1808 platform_device = platform_create_bundle(platform_driver,
1809 asus_wmi_probe,
1810 NULL, 0, NULL, 0);
1811 if (IS_ERR(platform_device))
1812 return PTR_ERR(platform_device);
1813
1814 used = true;
1815 return 0;
1816}
1817EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
1818
1819void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
1820{
1821 platform_device_unregister(driver->platform_device);
1822 platform_driver_unregister(&driver->platform_driver);
1823 used = false;
1824}
1825EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
1826
1827static int __init asus_wmi_init(void)
1828{
1829 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1830 pr_info("Asus Management GUID not found");
1831 return -ENODEV;
1832 }
1833
1834 pr_info("ASUS WMI generic driver loaded");
1835 return 0;
1836}
1837
1838static void __exit asus_wmi_exit(void)
1839{
1840 pr_info("ASUS WMI generic driver unloaded");
1841}
1842
1843module_init(asus_wmi_init);
1844module_exit(asus_wmi_exit);
1845
