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Commit | Line | Data |
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ee027e4a | 1 | /* |
e12e6d94 | 2 | * Asus PC WMI hotkey driver |
ee027e4a YW |
3 | * |
4 | * Copyright(C) 2010 Intel Corporation. | |
4c4edfa3 | 5 | * Copyright(C) 2010 Corentin Chary <corentin.chary@gmail.com> |
ee027e4a YW |
6 | * |
7 | * Portions based on wistron_btns.c: | |
8 | * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz> | |
9 | * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org> | |
10 | * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | */ | |
26 | ||
81248889 YW |
27 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
28 | ||
ee027e4a YW |
29 | #include <linux/kernel.h> |
30 | #include <linux/module.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/types.h> | |
a32f3926 | 33 | #include <linux/slab.h> |
ee027e4a YW |
34 | #include <linux/input.h> |
35 | #include <linux/input/sparse-keymap.h> | |
3d7b1655 YW |
36 | #include <linux/fb.h> |
37 | #include <linux/backlight.h> | |
084fca63 | 38 | #include <linux/leds.h> |
ba48fdb9 | 39 | #include <linux/rfkill.h> |
afa7c886 CC |
40 | #include <linux/pci.h> |
41 | #include <linux/pci_hotplug.h> | |
8c1b2d83 CC |
42 | #include <linux/debugfs.h> |
43 | #include <linux/seq_file.h> | |
45f2c693 | 44 | #include <linux/platform_device.h> |
ee027e4a YW |
45 | #include <acpi/acpi_bus.h> |
46 | #include <acpi/acpi_drivers.h> | |
47 | ||
e12e6d94 | 48 | #include "asus-wmi.h" |
45f2c693 | 49 | |
e12e6d94 CC |
50 | MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>, " |
51 | "Yong Wang <yong.y.wang@intel.com>"); | |
52 | MODULE_DESCRIPTION("Asus Generic WMI Driver"); | |
ee027e4a YW |
53 | MODULE_LICENSE("GPL"); |
54 | ||
e12e6d94 CC |
55 | #define to_platform_driver(drv) \ |
56 | (container_of((drv), struct platform_driver, driver)) | |
d358cb55 | 57 | |
e12e6d94 CC |
58 | #define to_asus_wmi_driver(pdrv) \ |
59 | (container_of((pdrv), struct asus_wmi_driver, platform_driver)) | |
ee027e4a | 60 | |
e12e6d94 | 61 | #define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" |
ee027e4a | 62 | |
33e0e6fe CC |
63 | #define NOTIFY_BRNUP_MIN 0x11 |
64 | #define NOTIFY_BRNUP_MAX 0x1f | |
65 | #define NOTIFY_BRNDOWN_MIN 0x20 | |
66 | #define NOTIFY_BRNDOWN_MAX 0x2e | |
ee027e4a | 67 | |
43815941 | 68 | /* WMI Methods */ |
e12e6d94 CC |
69 | #define ASUS_WMI_METHODID_DSTS 0x53544344 |
70 | #define ASUS_WMI_METHODID_DEVS 0x53564544 | |
71 | #define ASUS_WMI_METHODID_CFVS 0x53564643 | |
3d7b1655 | 72 | |
43815941 | 73 | /* Wireless */ |
e12e6d94 CC |
74 | #define ASUS_WMI_DEVID_WLAN 0x00010011 |
75 | #define ASUS_WMI_DEVID_BLUETOOTH 0x00010013 | |
76 | #define ASUS_WMI_DEVID_WIMAX 0x00010017 | |
77 | #define ASUS_WMI_DEVID_WWAN3G 0x00010019 | |
43815941 CC |
78 | |
79 | /* Backlight and Brightness */ | |
e12e6d94 CC |
80 | #define ASUS_WMI_DEVID_BACKLIGHT 0x00050011 |
81 | #define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012 | |
43815941 CC |
82 | |
83 | /* Misc */ | |
e12e6d94 | 84 | #define ASUS_WMI_DEVID_CAMERA 0x00060013 |
43815941 CC |
85 | |
86 | /* Storage */ | |
e12e6d94 | 87 | #define ASUS_WMI_DEVID_CARDREADER 0x00080013 |
43815941 CC |
88 | |
89 | /* Input */ | |
e12e6d94 CC |
90 | #define ASUS_WMI_DEVID_TOUCHPAD 0x00100011 |
91 | #define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012 | |
3d7b1655 | 92 | |
43815941 | 93 | /* DSTS masks */ |
e12e6d94 CC |
94 | #define ASUS_WMI_DSTS_STATUS_BIT 0x00000001 |
95 | #define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000 | |
96 | #define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF | |
97 | #define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00 | |
ee027e4a | 98 | |
3d7b1655 | 99 | struct bios_args { |
e12e6d94 CC |
100 | u32 dev_id; |
101 | u32 ctrl_param; | |
3d7b1655 YW |
102 | }; |
103 | ||
8c1b2d83 | 104 | /* |
e12e6d94 | 105 | * <platform>/ - debugfs root directory |
8c1b2d83 CC |
106 | * dev_id - current dev_id |
107 | * ctrl_param - current ctrl_param | |
108 | * devs - call DEVS(dev_id, ctrl_param) and print result | |
109 | * dsts - call DSTS(dev_id) and print result | |
110 | */ | |
e12e6d94 | 111 | struct asus_wmi_debug { |
8c1b2d83 CC |
112 | struct dentry *root; |
113 | u32 dev_id; | |
114 | u32 ctrl_param; | |
115 | }; | |
116 | ||
e12e6d94 | 117 | struct asus_wmi { |
81248889 | 118 | struct input_dev *inputdev; |
3d7b1655 | 119 | struct backlight_device *backlight_device; |
27c136c8 | 120 | struct platform_device *platform_device; |
084fca63 CC |
121 | |
122 | struct led_classdev tpd_led; | |
123 | int tpd_led_wk; | |
124 | struct workqueue_struct *led_workqueue; | |
125 | struct work_struct tpd_led_work; | |
ba48fdb9 CC |
126 | |
127 | struct rfkill *wlan_rfkill; | |
128 | struct rfkill *bluetooth_rfkill; | |
2e9e159d | 129 | struct rfkill *wimax_rfkill; |
ba48fdb9 | 130 | struct rfkill *wwan3g_rfkill; |
8c1b2d83 | 131 | |
afa7c886 CC |
132 | struct hotplug_slot *hotplug_slot; |
133 | struct mutex hotplug_lock; | |
279f8f95 CC |
134 | struct mutex wmi_lock; |
135 | struct workqueue_struct *hotplug_workqueue; | |
136 | struct work_struct hotplug_work; | |
afa7c886 | 137 | |
e12e6d94 CC |
138 | struct asus_wmi_debug debug; |
139 | ||
140 | struct asus_wmi_driver *driver; | |
81248889 YW |
141 | }; |
142 | ||
e12e6d94 | 143 | static int asus_wmi_input_init(struct asus_wmi *asus) |
ee027e4a YW |
144 | { |
145 | int err; | |
146 | ||
e12e6d94 CC |
147 | asus->inputdev = input_allocate_device(); |
148 | if (!asus->inputdev) | |
ee027e4a YW |
149 | return -ENOMEM; |
150 | ||
e12e6d94 CC |
151 | asus->inputdev->name = asus->driver->input_phys; |
152 | asus->inputdev->phys = asus->driver->input_name; | |
153 | asus->inputdev->id.bustype = BUS_HOST; | |
154 | asus->inputdev->dev.parent = &asus->platform_device->dev; | |
ee027e4a | 155 | |
e12e6d94 | 156 | err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL); |
ee027e4a YW |
157 | if (err) |
158 | goto err_free_dev; | |
159 | ||
e12e6d94 | 160 | err = input_register_device(asus->inputdev); |
ee027e4a YW |
161 | if (err) |
162 | goto err_free_keymap; | |
163 | ||
164 | return 0; | |
165 | ||
166 | err_free_keymap: | |
e12e6d94 | 167 | sparse_keymap_free(asus->inputdev); |
ee027e4a | 168 | err_free_dev: |
e12e6d94 | 169 | input_free_device(asus->inputdev); |
ee027e4a YW |
170 | return err; |
171 | } | |
172 | ||
e12e6d94 | 173 | static void asus_wmi_input_exit(struct asus_wmi *asus) |
81248889 | 174 | { |
e12e6d94 CC |
175 | if (asus->inputdev) { |
176 | sparse_keymap_free(asus->inputdev); | |
177 | input_unregister_device(asus->inputdev); | |
81248889 YW |
178 | } |
179 | ||
e12e6d94 | 180 | asus->inputdev = NULL; |
81248889 YW |
181 | } |
182 | ||
e12e6d94 | 183 | static acpi_status asus_wmi_get_devstate(u32 dev_id, u32 *retval) |
3d7b1655 | 184 | { |
e12e6d94 | 185 | struct acpi_buffer input = { (acpi_size) sizeof(u32), &dev_id }; |
3d7b1655 YW |
186 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; |
187 | union acpi_object *obj; | |
188 | acpi_status status; | |
189 | u32 tmp; | |
190 | ||
e12e6d94 CC |
191 | status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, |
192 | 1, ASUS_WMI_METHODID_DSTS, | |
afa7c886 | 193 | &input, &output); |
3d7b1655 YW |
194 | |
195 | if (ACPI_FAILURE(status)) | |
196 | return status; | |
197 | ||
198 | obj = (union acpi_object *)output.pointer; | |
199 | if (obj && obj->type == ACPI_TYPE_INTEGER) | |
e12e6d94 | 200 | tmp = (u32) obj->integer.value; |
3d7b1655 YW |
201 | else |
202 | tmp = 0; | |
203 | ||
2a3f0064 CC |
204 | if (retval) |
205 | *retval = tmp; | |
3d7b1655 YW |
206 | |
207 | kfree(obj); | |
208 | ||
209 | return status; | |
210 | ||
211 | } | |
212 | ||
e12e6d94 CC |
213 | static acpi_status asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param, |
214 | u32 *retval) | |
3d7b1655 YW |
215 | { |
216 | struct bios_args args = { | |
217 | .dev_id = dev_id, | |
218 | .ctrl_param = ctrl_param, | |
219 | }; | |
e12e6d94 | 220 | struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; |
3d7b1655 YW |
221 | acpi_status status; |
222 | ||
8c1b2d83 | 223 | if (!retval) { |
e12e6d94 CC |
224 | status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, |
225 | ASUS_WMI_METHODID_DEVS, | |
8c1b2d83 CC |
226 | &input, NULL); |
227 | } else { | |
228 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; | |
229 | union acpi_object *obj; | |
230 | u32 tmp; | |
231 | ||
e12e6d94 CC |
232 | status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, |
233 | ASUS_WMI_METHODID_DEVS, | |
8c1b2d83 CC |
234 | &input, &output); |
235 | ||
236 | if (ACPI_FAILURE(status)) | |
237 | return status; | |
238 | ||
239 | obj = (union acpi_object *)output.pointer; | |
240 | if (obj && obj->type == ACPI_TYPE_INTEGER) | |
e12e6d94 | 241 | tmp = (u32) obj->integer.value; |
8c1b2d83 CC |
242 | else |
243 | tmp = 0; | |
244 | ||
245 | *retval = tmp; | |
246 | ||
247 | kfree(obj); | |
248 | } | |
3d7b1655 YW |
249 | |
250 | return status; | |
251 | } | |
252 | ||
5c95638d | 253 | /* Helper for special devices with magic return codes */ |
e12e6d94 | 254 | static int asus_wmi_get_devstate_bits(u32 dev_id, u32 mask) |
5c95638d CC |
255 | { |
256 | u32 retval = 0; | |
257 | acpi_status status; | |
258 | ||
e12e6d94 | 259 | status = asus_wmi_get_devstate(dev_id, &retval); |
5c95638d CC |
260 | |
261 | if (ACPI_FAILURE(status)) | |
262 | return -EINVAL; | |
263 | ||
e12e6d94 | 264 | if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT)) |
5c95638d CC |
265 | return -ENODEV; |
266 | ||
b7187265 CC |
267 | return retval & mask; |
268 | } | |
269 | ||
e12e6d94 | 270 | static int asus_wmi_get_devstate_simple(u32 dev_id) |
b7187265 | 271 | { |
e12e6d94 | 272 | return asus_wmi_get_devstate_bits(dev_id, ASUS_WMI_DSTS_STATUS_BIT); |
5c95638d CC |
273 | } |
274 | ||
084fca63 CC |
275 | /* |
276 | * LEDs | |
277 | */ | |
278 | /* | |
279 | * These functions actually update the LED's, and are called from a | |
280 | * workqueue. By doing this as separate work rather than when the LED | |
e12e6d94 | 281 | * subsystem asks, we avoid messing with the Asus ACPI stuff during a |
084fca63 CC |
282 | * potentially bad time, such as a timer interrupt. |
283 | */ | |
284 | static void tpd_led_update(struct work_struct *work) | |
285 | { | |
286 | int ctrl_param; | |
e12e6d94 | 287 | struct asus_wmi *asus; |
084fca63 | 288 | |
e12e6d94 | 289 | asus = container_of(work, struct asus_wmi, tpd_led_work); |
084fca63 | 290 | |
e12e6d94 CC |
291 | ctrl_param = asus->tpd_led_wk; |
292 | asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL); | |
084fca63 CC |
293 | } |
294 | ||
295 | static void tpd_led_set(struct led_classdev *led_cdev, | |
296 | enum led_brightness value) | |
297 | { | |
e12e6d94 | 298 | struct asus_wmi *asus; |
084fca63 | 299 | |
e12e6d94 | 300 | asus = container_of(led_cdev, struct asus_wmi, tpd_led); |
084fca63 | 301 | |
e12e6d94 CC |
302 | asus->tpd_led_wk = !!value; |
303 | queue_work(asus->led_workqueue, &asus->tpd_led_work); | |
084fca63 CC |
304 | } |
305 | ||
e12e6d94 | 306 | static int read_tpd_led_state(struct asus_wmi *asus) |
084fca63 | 307 | { |
e12e6d94 | 308 | return asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_TOUCHPAD_LED); |
084fca63 CC |
309 | } |
310 | ||
311 | static enum led_brightness tpd_led_get(struct led_classdev *led_cdev) | |
312 | { | |
e12e6d94 | 313 | struct asus_wmi *asus; |
084fca63 | 314 | |
e12e6d94 | 315 | asus = container_of(led_cdev, struct asus_wmi, tpd_led); |
084fca63 | 316 | |
e12e6d94 | 317 | return read_tpd_led_state(asus); |
084fca63 CC |
318 | } |
319 | ||
e12e6d94 | 320 | static int asus_wmi_led_init(struct asus_wmi *asus) |
084fca63 CC |
321 | { |
322 | int rv; | |
323 | ||
e12e6d94 | 324 | if (read_tpd_led_state(asus) < 0) |
084fca63 CC |
325 | return 0; |
326 | ||
e12e6d94 CC |
327 | asus->led_workqueue = create_singlethread_workqueue("led_workqueue"); |
328 | if (!asus->led_workqueue) | |
084fca63 | 329 | return -ENOMEM; |
e12e6d94 | 330 | INIT_WORK(&asus->tpd_led_work, tpd_led_update); |
084fca63 | 331 | |
e12e6d94 CC |
332 | asus->tpd_led.name = "asus::touchpad"; |
333 | asus->tpd_led.brightness_set = tpd_led_set; | |
334 | asus->tpd_led.brightness_get = tpd_led_get; | |
335 | asus->tpd_led.max_brightness = 1; | |
084fca63 | 336 | |
e12e6d94 | 337 | rv = led_classdev_register(&asus->platform_device->dev, &asus->tpd_led); |
084fca63 | 338 | if (rv) { |
e12e6d94 | 339 | destroy_workqueue(asus->led_workqueue); |
084fca63 CC |
340 | return rv; |
341 | } | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
e12e6d94 | 346 | static void asus_wmi_led_exit(struct asus_wmi *asus) |
084fca63 | 347 | { |
e12e6d94 CC |
348 | if (asus->tpd_led.dev) |
349 | led_classdev_unregister(&asus->tpd_led); | |
350 | if (asus->led_workqueue) | |
351 | destroy_workqueue(asus->led_workqueue); | |
084fca63 CC |
352 | } |
353 | ||
afa7c886 CC |
354 | /* |
355 | * PCI hotplug (for wlan rfkill) | |
356 | */ | |
e12e6d94 | 357 | static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus) |
afa7c886 | 358 | { |
e12e6d94 | 359 | int result = asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_WLAN); |
afa7c886 | 360 | |
5c95638d | 361 | if (result < 0) |
afa7c886 | 362 | return false; |
5c95638d | 363 | return !result; |
afa7c886 CC |
364 | } |
365 | ||
e12e6d94 | 366 | static void asus_rfkill_hotplug(struct asus_wmi *asus) |
afa7c886 CC |
367 | { |
368 | struct pci_dev *dev; | |
369 | struct pci_bus *bus; | |
279f8f95 | 370 | bool blocked; |
afa7c886 CC |
371 | bool absent; |
372 | u32 l; | |
373 | ||
e12e6d94 CC |
374 | mutex_lock(&asus->wmi_lock); |
375 | blocked = asus_wlan_rfkill_blocked(asus); | |
376 | mutex_unlock(&asus->wmi_lock); | |
afa7c886 | 377 | |
e12e6d94 | 378 | mutex_lock(&asus->hotplug_lock); |
afa7c886 | 379 | |
e12e6d94 CC |
380 | if (asus->wlan_rfkill) |
381 | rfkill_set_sw_state(asus->wlan_rfkill, blocked); | |
279f8f95 | 382 | |
e12e6d94 | 383 | if (asus->hotplug_slot) { |
afa7c886 CC |
384 | bus = pci_find_bus(0, 1); |
385 | if (!bus) { | |
386 | pr_warning("Unable to find PCI bus 1?\n"); | |
387 | goto out_unlock; | |
388 | } | |
389 | ||
390 | if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) { | |
391 | pr_err("Unable to read PCI config space?\n"); | |
392 | goto out_unlock; | |
393 | } | |
394 | absent = (l == 0xffffffff); | |
395 | ||
396 | if (blocked != absent) { | |
397 | pr_warning("BIOS says wireless lan is %s, " | |
e12e6d94 CC |
398 | "but the pci device is %s\n", |
399 | blocked ? "blocked" : "unblocked", | |
400 | absent ? "absent" : "present"); | |
afa7c886 | 401 | pr_warning("skipped wireless hotplug as probably " |
e12e6d94 | 402 | "inappropriate for this model\n"); |
afa7c886 CC |
403 | goto out_unlock; |
404 | } | |
405 | ||
406 | if (!blocked) { | |
407 | dev = pci_get_slot(bus, 0); | |
408 | if (dev) { | |
409 | /* Device already present */ | |
410 | pci_dev_put(dev); | |
411 | goto out_unlock; | |
412 | } | |
413 | dev = pci_scan_single_device(bus, 0); | |
414 | if (dev) { | |
415 | pci_bus_assign_resources(bus); | |
416 | if (pci_bus_add_device(dev)) | |
417 | pr_err("Unable to hotplug wifi\n"); | |
418 | } | |
419 | } else { | |
420 | dev = pci_get_slot(bus, 0); | |
421 | if (dev) { | |
422 | pci_remove_bus_device(dev); | |
423 | pci_dev_put(dev); | |
424 | } | |
425 | } | |
426 | } | |
427 | ||
428 | out_unlock: | |
e12e6d94 | 429 | mutex_unlock(&asus->hotplug_lock); |
afa7c886 CC |
430 | } |
431 | ||
e12e6d94 | 432 | static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data) |
afa7c886 | 433 | { |
e12e6d94 | 434 | struct asus_wmi *asus = data; |
afa7c886 CC |
435 | |
436 | if (event != ACPI_NOTIFY_BUS_CHECK) | |
437 | return; | |
438 | ||
279f8f95 | 439 | /* |
e12e6d94 | 440 | * We can't call directly asus_rfkill_hotplug because most |
279f8f95 CC |
441 | * of the time WMBC is still being executed and not reetrant. |
442 | * There is currently no way to tell ACPICA that we want this | |
e12e6d94 | 443 | * method to be serialized, we schedule a asus_rfkill_hotplug |
279f8f95 CC |
444 | * call later, in a safer context. |
445 | */ | |
e12e6d94 | 446 | queue_work(asus->hotplug_workqueue, &asus->hotplug_work); |
afa7c886 CC |
447 | } |
448 | ||
e12e6d94 | 449 | static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node) |
afa7c886 CC |
450 | { |
451 | acpi_status status; | |
452 | acpi_handle handle; | |
453 | ||
454 | status = acpi_get_handle(NULL, node, &handle); | |
455 | ||
456 | if (ACPI_SUCCESS(status)) { | |
457 | status = acpi_install_notify_handler(handle, | |
458 | ACPI_SYSTEM_NOTIFY, | |
e12e6d94 | 459 | asus_rfkill_notify, asus); |
afa7c886 CC |
460 | if (ACPI_FAILURE(status)) |
461 | pr_warning("Failed to register notify on %s\n", node); | |
462 | } else | |
463 | return -ENODEV; | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
e12e6d94 | 468 | static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node) |
afa7c886 CC |
469 | { |
470 | acpi_status status = AE_OK; | |
471 | acpi_handle handle; | |
472 | ||
473 | status = acpi_get_handle(NULL, node, &handle); | |
474 | ||
475 | if (ACPI_SUCCESS(status)) { | |
476 | status = acpi_remove_notify_handler(handle, | |
e12e6d94 CC |
477 | ACPI_SYSTEM_NOTIFY, |
478 | asus_rfkill_notify); | |
afa7c886 CC |
479 | if (ACPI_FAILURE(status)) |
480 | pr_err("Error removing rfkill notify handler %s\n", | |
e12e6d94 | 481 | node); |
afa7c886 CC |
482 | } |
483 | } | |
484 | ||
e12e6d94 CC |
485 | static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot, |
486 | u8 *value) | |
afa7c886 | 487 | { |
e12e6d94 | 488 | int result = asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_WLAN); |
afa7c886 | 489 | |
5c95638d CC |
490 | if (result < 0) |
491 | return result; | |
afa7c886 | 492 | |
5c95638d | 493 | *value = !!result; |
afa7c886 CC |
494 | return 0; |
495 | } | |
496 | ||
e12e6d94 | 497 | static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot) |
afa7c886 CC |
498 | { |
499 | kfree(hotplug_slot->info); | |
500 | kfree(hotplug_slot); | |
501 | } | |
502 | ||
e12e6d94 | 503 | static struct hotplug_slot_ops asus_hotplug_slot_ops = { |
afa7c886 | 504 | .owner = THIS_MODULE, |
e12e6d94 CC |
505 | .get_adapter_status = asus_get_adapter_status, |
506 | .get_power_status = asus_get_adapter_status, | |
afa7c886 CC |
507 | }; |
508 | ||
e12e6d94 | 509 | static void asus_hotplug_work(struct work_struct *work) |
279f8f95 | 510 | { |
e12e6d94 | 511 | struct asus_wmi *asus; |
279f8f95 | 512 | |
e12e6d94 CC |
513 | asus = container_of(work, struct asus_wmi, hotplug_work); |
514 | asus_rfkill_hotplug(asus); | |
279f8f95 CC |
515 | } |
516 | ||
e12e6d94 | 517 | static int asus_setup_pci_hotplug(struct asus_wmi *asus) |
afa7c886 CC |
518 | { |
519 | int ret = -ENOMEM; | |
520 | struct pci_bus *bus = pci_find_bus(0, 1); | |
521 | ||
522 | if (!bus) { | |
523 | pr_err("Unable to find wifi PCI bus\n"); | |
524 | return -ENODEV; | |
525 | } | |
526 | ||
e12e6d94 CC |
527 | asus->hotplug_workqueue = |
528 | create_singlethread_workqueue("hotplug_workqueue"); | |
529 | if (!asus->hotplug_workqueue) | |
279f8f95 CC |
530 | goto error_workqueue; |
531 | ||
e12e6d94 | 532 | INIT_WORK(&asus->hotplug_work, asus_hotplug_work); |
279f8f95 | 533 | |
e12e6d94 CC |
534 | asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); |
535 | if (!asus->hotplug_slot) | |
afa7c886 CC |
536 | goto error_slot; |
537 | ||
e12e6d94 CC |
538 | asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), |
539 | GFP_KERNEL); | |
540 | if (!asus->hotplug_slot->info) | |
afa7c886 CC |
541 | goto error_info; |
542 | ||
e12e6d94 CC |
543 | asus->hotplug_slot->private = asus; |
544 | asus->hotplug_slot->release = &asus_cleanup_pci_hotplug; | |
545 | asus->hotplug_slot->ops = &asus_hotplug_slot_ops; | |
546 | asus_get_adapter_status(asus->hotplug_slot, | |
547 | &asus->hotplug_slot->info->adapter_status); | |
afa7c886 | 548 | |
e12e6d94 | 549 | ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi"); |
afa7c886 CC |
550 | if (ret) { |
551 | pr_err("Unable to register hotplug slot - %d\n", ret); | |
552 | goto error_register; | |
553 | } | |
554 | ||
555 | return 0; | |
556 | ||
557 | error_register: | |
e12e6d94 | 558 | kfree(asus->hotplug_slot->info); |
afa7c886 | 559 | error_info: |
e12e6d94 CC |
560 | kfree(asus->hotplug_slot); |
561 | asus->hotplug_slot = NULL; | |
afa7c886 | 562 | error_slot: |
e12e6d94 | 563 | destroy_workqueue(asus->hotplug_workqueue); |
279f8f95 | 564 | error_workqueue: |
afa7c886 CC |
565 | return ret; |
566 | } | |
567 | ||
ba48fdb9 CC |
568 | /* |
569 | * Rfkill devices | |
570 | */ | |
e12e6d94 | 571 | static int asus_rfkill_set(void *data, bool blocked) |
ba48fdb9 CC |
572 | { |
573 | int dev_id = (unsigned long)data; | |
574 | u32 ctrl_param = !blocked; | |
7898cf1a CC |
575 | acpi_status status; |
576 | ||
e12e6d94 | 577 | status = asus_wmi_set_devstate(dev_id, ctrl_param, NULL); |
7898cf1a CC |
578 | |
579 | if (ACPI_FAILURE(status)) | |
580 | return -EIO; | |
ba48fdb9 | 581 | |
7898cf1a | 582 | return 0; |
ba48fdb9 CC |
583 | } |
584 | ||
e12e6d94 | 585 | static void asus_rfkill_query(struct rfkill *rfkill, void *data) |
ba48fdb9 CC |
586 | { |
587 | int dev_id = (unsigned long)data; | |
5c95638d | 588 | int result; |
ba48fdb9 | 589 | |
e12e6d94 | 590 | result = asus_wmi_get_devstate_simple(dev_id); |
ba48fdb9 | 591 | |
5c95638d | 592 | if (result < 0) |
e12e6d94 | 593 | return; |
ba48fdb9 | 594 | |
5c95638d | 595 | rfkill_set_sw_state(rfkill, !result); |
ba48fdb9 CC |
596 | } |
597 | ||
e12e6d94 | 598 | static int asus_rfkill_wlan_set(void *data, bool blocked) |
279f8f95 | 599 | { |
e12e6d94 | 600 | struct asus_wmi *asus = data; |
279f8f95 CC |
601 | int ret; |
602 | ||
603 | /* | |
604 | * This handler is enabled only if hotplug is enabled. | |
e12e6d94 | 605 | * In this case, the asus_wmi_set_devstate() will |
279f8f95 CC |
606 | * trigger a wmi notification and we need to wait |
607 | * this call to finish before being able to call | |
608 | * any wmi method | |
609 | */ | |
e12e6d94 CC |
610 | mutex_lock(&asus->wmi_lock); |
611 | ret = asus_rfkill_set((void *)(long)ASUS_WMI_DEVID_WLAN, blocked); | |
612 | mutex_unlock(&asus->wmi_lock); | |
279f8f95 CC |
613 | return ret; |
614 | } | |
615 | ||
e12e6d94 | 616 | static void asus_rfkill_wlan_query(struct rfkill *rfkill, void *data) |
279f8f95 | 617 | { |
e12e6d94 | 618 | asus_rfkill_query(rfkill, (void *)(long)ASUS_WMI_DEVID_WLAN); |
279f8f95 CC |
619 | } |
620 | ||
e12e6d94 CC |
621 | static const struct rfkill_ops asus_rfkill_wlan_ops = { |
622 | .set_block = asus_rfkill_wlan_set, | |
623 | .query = asus_rfkill_wlan_query, | |
279f8f95 CC |
624 | }; |
625 | ||
e12e6d94 CC |
626 | static const struct rfkill_ops asus_rfkill_ops = { |
627 | .set_block = asus_rfkill_set, | |
628 | .query = asus_rfkill_query, | |
ba48fdb9 CC |
629 | }; |
630 | ||
e12e6d94 CC |
631 | static int asus_new_rfkill(struct asus_wmi *asus, |
632 | struct rfkill **rfkill, | |
633 | const char *name, enum rfkill_type type, int dev_id) | |
ba48fdb9 | 634 | { |
e12e6d94 | 635 | int result = asus_wmi_get_devstate_simple(dev_id); |
ba48fdb9 | 636 | |
5c95638d CC |
637 | if (result < 0) |
638 | return result; | |
ba48fdb9 | 639 | |
e12e6d94 CC |
640 | if (dev_id == ASUS_WMI_DEVID_WLAN && asus->driver->hotplug_wireless) |
641 | *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type, | |
642 | &asus_rfkill_wlan_ops, asus); | |
279f8f95 | 643 | else |
e12e6d94 CC |
644 | *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type, |
645 | &asus_rfkill_ops, (void *)(long)dev_id); | |
ba48fdb9 CC |
646 | |
647 | if (!*rfkill) | |
648 | return -EINVAL; | |
649 | ||
5c95638d | 650 | rfkill_init_sw_state(*rfkill, !result); |
ba48fdb9 CC |
651 | result = rfkill_register(*rfkill); |
652 | if (result) { | |
653 | rfkill_destroy(*rfkill); | |
654 | *rfkill = NULL; | |
655 | return result; | |
656 | } | |
657 | return 0; | |
658 | } | |
659 | ||
e12e6d94 | 660 | static void asus_wmi_rfkill_exit(struct asus_wmi *asus) |
ba48fdb9 | 661 | { |
e12e6d94 CC |
662 | asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5"); |
663 | asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6"); | |
664 | asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7"); | |
665 | if (asus->wlan_rfkill) { | |
666 | rfkill_unregister(asus->wlan_rfkill); | |
667 | rfkill_destroy(asus->wlan_rfkill); | |
668 | asus->wlan_rfkill = NULL; | |
ba48fdb9 | 669 | } |
afa7c886 CC |
670 | /* |
671 | * Refresh pci hotplug in case the rfkill state was changed after | |
e12e6d94 | 672 | * asus_unregister_rfkill_notifier() |
afa7c886 | 673 | */ |
e12e6d94 CC |
674 | asus_rfkill_hotplug(asus); |
675 | if (asus->hotplug_slot) | |
676 | pci_hp_deregister(asus->hotplug_slot); | |
677 | if (asus->hotplug_workqueue) | |
678 | destroy_workqueue(asus->hotplug_workqueue); | |
679 | ||
680 | if (asus->bluetooth_rfkill) { | |
681 | rfkill_unregister(asus->bluetooth_rfkill); | |
682 | rfkill_destroy(asus->bluetooth_rfkill); | |
683 | asus->bluetooth_rfkill = NULL; | |
ba48fdb9 | 684 | } |
e12e6d94 CC |
685 | if (asus->wimax_rfkill) { |
686 | rfkill_unregister(asus->wimax_rfkill); | |
687 | rfkill_destroy(asus->wimax_rfkill); | |
688 | asus->wimax_rfkill = NULL; | |
2e9e159d | 689 | } |
e12e6d94 CC |
690 | if (asus->wwan3g_rfkill) { |
691 | rfkill_unregister(asus->wwan3g_rfkill); | |
692 | rfkill_destroy(asus->wwan3g_rfkill); | |
693 | asus->wwan3g_rfkill = NULL; | |
ba48fdb9 CC |
694 | } |
695 | } | |
696 | ||
e12e6d94 | 697 | static int asus_wmi_rfkill_init(struct asus_wmi *asus) |
ba48fdb9 CC |
698 | { |
699 | int result = 0; | |
700 | ||
e12e6d94 CC |
701 | mutex_init(&asus->hotplug_lock); |
702 | mutex_init(&asus->wmi_lock); | |
afa7c886 | 703 | |
e12e6d94 CC |
704 | result = asus_new_rfkill(asus, &asus->wlan_rfkill, |
705 | "asus-wlan", RFKILL_TYPE_WLAN, | |
706 | ASUS_WMI_DEVID_WLAN); | |
ba48fdb9 CC |
707 | |
708 | if (result && result != -ENODEV) | |
709 | goto exit; | |
710 | ||
e12e6d94 CC |
711 | result = asus_new_rfkill(asus, &asus->bluetooth_rfkill, |
712 | "asus-bluetooth", RFKILL_TYPE_BLUETOOTH, | |
713 | ASUS_WMI_DEVID_BLUETOOTH); | |
ba48fdb9 CC |
714 | |
715 | if (result && result != -ENODEV) | |
716 | goto exit; | |
717 | ||
e12e6d94 CC |
718 | result = asus_new_rfkill(asus, &asus->wimax_rfkill, |
719 | "asus-wimax", RFKILL_TYPE_WIMAX, | |
720 | ASUS_WMI_DEVID_WIMAX); | |
2e9e159d CC |
721 | |
722 | if (result && result != -ENODEV) | |
723 | goto exit; | |
724 | ||
e12e6d94 CC |
725 | result = asus_new_rfkill(asus, &asus->wwan3g_rfkill, |
726 | "asus-wwan3g", RFKILL_TYPE_WWAN, | |
727 | ASUS_WMI_DEVID_WWAN3G); | |
ba48fdb9 CC |
728 | |
729 | if (result && result != -ENODEV) | |
730 | goto exit; | |
731 | ||
e12e6d94 | 732 | if (!asus->driver->hotplug_wireless) |
c14d4b8e CC |
733 | goto exit; |
734 | ||
e12e6d94 | 735 | result = asus_setup_pci_hotplug(asus); |
afa7c886 CC |
736 | /* |
737 | * If we get -EBUSY then something else is handling the PCI hotplug - | |
738 | * don't fail in this case | |
739 | */ | |
740 | if (result == -EBUSY) | |
741 | result = 0; | |
742 | ||
e12e6d94 CC |
743 | asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5"); |
744 | asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6"); | |
745 | asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7"); | |
afa7c886 CC |
746 | /* |
747 | * Refresh pci hotplug in case the rfkill state was changed during | |
748 | * setup. | |
749 | */ | |
e12e6d94 | 750 | asus_rfkill_hotplug(asus); |
afa7c886 | 751 | |
ba48fdb9 CC |
752 | exit: |
753 | if (result && result != -ENODEV) | |
e12e6d94 | 754 | asus_wmi_rfkill_exit(asus); |
ba48fdb9 CC |
755 | |
756 | if (result == -ENODEV) | |
757 | result = 0; | |
758 | ||
759 | return result; | |
760 | } | |
761 | ||
084fca63 CC |
762 | /* |
763 | * Backlight | |
764 | */ | |
b7187265 CC |
765 | static int read_backlight_power(void) |
766 | { | |
e12e6d94 | 767 | int ret = asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_BACKLIGHT); |
b7187265 CC |
768 | |
769 | if (ret < 0) | |
770 | return ret; | |
771 | ||
772 | return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
773 | } | |
774 | ||
3d7b1655 YW |
775 | static int read_brightness(struct backlight_device *bd) |
776 | { | |
dfed65d5 | 777 | u32 retval; |
3d7b1655 YW |
778 | acpi_status status; |
779 | ||
e12e6d94 | 780 | status = asus_wmi_get_devstate(ASUS_WMI_DEVID_BRIGHTNESS, &retval); |
3d7b1655 YW |
781 | |
782 | if (ACPI_FAILURE(status)) | |
b7187265 | 783 | return -EIO; |
3d7b1655 | 784 | else |
e12e6d94 | 785 | return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK; |
3d7b1655 YW |
786 | } |
787 | ||
788 | static int update_bl_status(struct backlight_device *bd) | |
789 | { | |
dfed65d5 | 790 | u32 ctrl_param; |
3d7b1655 | 791 | acpi_status status; |
b7187265 | 792 | int power; |
3d7b1655 YW |
793 | |
794 | ctrl_param = bd->props.brightness; | |
795 | ||
e12e6d94 CC |
796 | status = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS, |
797 | ctrl_param, NULL); | |
3d7b1655 YW |
798 | |
799 | if (ACPI_FAILURE(status)) | |
b7187265 CC |
800 | return -EIO; |
801 | ||
802 | power = read_backlight_power(); | |
803 | if (power != -ENODEV && bd->props.power != power) { | |
804 | ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK); | |
e12e6d94 CC |
805 | status = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, |
806 | ctrl_param, NULL); | |
b7187265 CC |
807 | |
808 | if (ACPI_FAILURE(status)) | |
809 | return -EIO; | |
810 | } | |
811 | return 0; | |
3d7b1655 YW |
812 | } |
813 | ||
e12e6d94 | 814 | static const struct backlight_ops asus_wmi_bl_ops = { |
3d7b1655 YW |
815 | .get_brightness = read_brightness, |
816 | .update_status = update_bl_status, | |
817 | }; | |
818 | ||
e12e6d94 | 819 | static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code) |
3d7b1655 | 820 | { |
e12e6d94 | 821 | struct backlight_device *bd = asus->backlight_device; |
3d7b1655 | 822 | int old = bd->props.brightness; |
b7670ed6 | 823 | int new = old; |
3d7b1655 YW |
824 | |
825 | if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX) | |
826 | new = code - NOTIFY_BRNUP_MIN + 1; | |
827 | else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX) | |
828 | new = code - NOTIFY_BRNDOWN_MIN; | |
829 | ||
830 | bd->props.brightness = new; | |
831 | backlight_update_status(bd); | |
832 | backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); | |
833 | ||
834 | return old; | |
835 | } | |
836 | ||
e12e6d94 | 837 | static int asus_wmi_backlight_init(struct asus_wmi *asus) |
3d7b1655 YW |
838 | { |
839 | struct backlight_device *bd; | |
840 | struct backlight_properties props; | |
b7187265 CC |
841 | int max; |
842 | int power; | |
843 | ||
e12e6d94 CC |
844 | max = asus_wmi_get_devstate_bits(ASUS_WMI_DEVID_BRIGHTNESS, |
845 | ASUS_WMI_DSTS_MAX_BRIGTH_MASK); | |
b7187265 CC |
846 | power = read_backlight_power(); |
847 | ||
848 | if (max < 0 && power < 0) { | |
849 | /* Try to keep the original error */ | |
850 | if (max == -ENODEV && power == -ENODEV) | |
851 | return -ENODEV; | |
852 | if (max != -ENODEV) | |
853 | return max; | |
854 | else | |
855 | return power; | |
856 | } | |
857 | if (max == -ENODEV) | |
858 | max = 0; | |
859 | if (power == -ENODEV) | |
860 | power = FB_BLANK_UNBLANK; | |
3d7b1655 YW |
861 | |
862 | memset(&props, 0, sizeof(struct backlight_properties)); | |
b7187265 | 863 | props.max_brightness = max; |
e12e6d94 CC |
864 | bd = backlight_device_register(asus->driver->name, |
865 | &asus->platform_device->dev, asus, | |
866 | &asus_wmi_bl_ops, &props); | |
3d7b1655 YW |
867 | if (IS_ERR(bd)) { |
868 | pr_err("Could not register backlight device\n"); | |
869 | return PTR_ERR(bd); | |
870 | } | |
871 | ||
e12e6d94 | 872 | asus->backlight_device = bd; |
3d7b1655 YW |
873 | |
874 | bd->props.brightness = read_brightness(bd); | |
b7187265 | 875 | bd->props.power = power; |
3d7b1655 YW |
876 | backlight_update_status(bd); |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
e12e6d94 | 881 | static void asus_wmi_backlight_exit(struct asus_wmi *asus) |
3d7b1655 | 882 | { |
e12e6d94 CC |
883 | if (asus->backlight_device) |
884 | backlight_device_unregister(asus->backlight_device); | |
3d7b1655 | 885 | |
e12e6d94 | 886 | asus->backlight_device = NULL; |
3d7b1655 YW |
887 | } |
888 | ||
e12e6d94 | 889 | static void asus_wmi_notify(u32 value, void *context) |
3d7b1655 | 890 | { |
e12e6d94 | 891 | struct asus_wmi *asus = context; |
3d7b1655 YW |
892 | struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; |
893 | union acpi_object *obj; | |
894 | acpi_status status; | |
895 | int code; | |
896 | int orig_code; | |
897 | ||
898 | status = wmi_get_event_data(value, &response); | |
899 | if (status != AE_OK) { | |
900 | pr_err("bad event status 0x%x\n", status); | |
901 | return; | |
902 | } | |
903 | ||
904 | obj = (union acpi_object *)response.pointer; | |
905 | ||
906 | if (obj && obj->type == ACPI_TYPE_INTEGER) { | |
907 | code = obj->integer.value; | |
908 | orig_code = code; | |
909 | ||
910 | if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX) | |
911 | code = NOTIFY_BRNUP_MIN; | |
912 | else if (code >= NOTIFY_BRNDOWN_MIN && | |
913 | code <= NOTIFY_BRNDOWN_MAX) | |
914 | code = NOTIFY_BRNDOWN_MIN; | |
915 | ||
916 | if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) { | |
917 | if (!acpi_video_backlight_support()) | |
e12e6d94 | 918 | asus_wmi_backlight_notify(asus, orig_code); |
3d7b1655 YW |
919 | } |
920 | ||
e12e6d94 | 921 | if (!sparse_keymap_report_event(asus->inputdev, code, 1, true)) |
3d7b1655 YW |
922 | pr_info("Unknown key %x pressed\n", code); |
923 | } | |
924 | ||
925 | kfree(obj); | |
926 | } | |
927 | ||
9e1565bc CC |
928 | /* |
929 | * Sys helpers | |
930 | */ | |
931 | static int parse_arg(const char *buf, unsigned long count, int *val) | |
932 | { | |
933 | if (!count) | |
934 | return 0; | |
935 | if (sscanf(buf, "%i", val) != 1) | |
936 | return -EINVAL; | |
937 | return count; | |
938 | } | |
939 | ||
940 | static ssize_t store_sys_wmi(int devid, const char *buf, size_t count) | |
941 | { | |
942 | acpi_status status; | |
943 | u32 retval; | |
944 | int rv, value; | |
945 | ||
e12e6d94 CC |
946 | value = asus_wmi_get_devstate_simple(devid); |
947 | if (value == -ENODEV) /* Check device presence */ | |
9e1565bc CC |
948 | return value; |
949 | ||
950 | rv = parse_arg(buf, count, &value); | |
e12e6d94 | 951 | status = asus_wmi_set_devstate(devid, value, &retval); |
9e1565bc CC |
952 | |
953 | if (ACPI_FAILURE(status)) | |
954 | return -EIO; | |
955 | return rv; | |
956 | } | |
957 | ||
958 | static ssize_t show_sys_wmi(int devid, char *buf) | |
959 | { | |
e12e6d94 | 960 | int value = asus_wmi_get_devstate_simple(devid); |
9e1565bc CC |
961 | |
962 | if (value < 0) | |
963 | return value; | |
964 | ||
965 | return sprintf(buf, "%d\n", value); | |
966 | } | |
967 | ||
e12e6d94 | 968 | #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \ |
9e1565bc CC |
969 | static ssize_t show_##_name(struct device *dev, \ |
970 | struct device_attribute *attr, \ | |
971 | char *buf) \ | |
972 | { \ | |
973 | return show_sys_wmi(_cm, buf); \ | |
974 | } \ | |
975 | static ssize_t store_##_name(struct device *dev, \ | |
976 | struct device_attribute *attr, \ | |
977 | const char *buf, size_t count) \ | |
978 | { \ | |
979 | return store_sys_wmi(_cm, buf, count); \ | |
980 | } \ | |
981 | static struct device_attribute dev_attr_##_name = { \ | |
982 | .attr = { \ | |
983 | .name = __stringify(_name), \ | |
984 | .mode = _mode }, \ | |
985 | .show = show_##_name, \ | |
986 | .store = store_##_name, \ | |
987 | } | |
988 | ||
e12e6d94 CC |
989 | ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD); |
990 | ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA); | |
991 | ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER); | |
9e1565bc | 992 | |
67fa38ec DT |
993 | static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr, |
994 | const char *buf, size_t count) | |
7f80d734 CB |
995 | { |
996 | int value; | |
e12e6d94 | 997 | struct acpi_buffer input = { (acpi_size) sizeof(value), &value }; |
7f80d734 CB |
998 | acpi_status status; |
999 | ||
1000 | if (!count || sscanf(buf, "%i", &value) != 1) | |
1001 | return -EINVAL; | |
1002 | if (value < 0 || value > 2) | |
1003 | return -EINVAL; | |
1004 | ||
e12e6d94 CC |
1005 | status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, |
1006 | 1, ASUS_WMI_METHODID_CFVS, &input, NULL); | |
7f80d734 CB |
1007 | |
1008 | if (ACPI_FAILURE(status)) | |
1009 | return -EIO; | |
1010 | else | |
1011 | return count; | |
1012 | } | |
1013 | ||
1014 | static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv); | |
1015 | ||
4e37b42d CC |
1016 | static struct attribute *platform_attributes[] = { |
1017 | &dev_attr_cpufv.attr, | |
9e1565bc CC |
1018 | &dev_attr_camera.attr, |
1019 | &dev_attr_cardr.attr, | |
4615bb66 | 1020 | &dev_attr_touchpad.attr, |
4e37b42d CC |
1021 | NULL |
1022 | }; | |
1023 | ||
e12e6d94 CC |
1024 | static mode_t asus_sysfs_is_visible(struct kobject *kobj, |
1025 | struct attribute *attr, int idx) | |
9e1565bc CC |
1026 | { |
1027 | bool supported = true; | |
1028 | int devid = -1; | |
1029 | ||
1030 | if (attr == &dev_attr_camera.attr) | |
e12e6d94 | 1031 | devid = ASUS_WMI_DEVID_CAMERA; |
9e1565bc | 1032 | else if (attr == &dev_attr_cardr.attr) |
e12e6d94 | 1033 | devid = ASUS_WMI_DEVID_CARDREADER; |
4615bb66 | 1034 | else if (attr == &dev_attr_touchpad.attr) |
e12e6d94 | 1035 | devid = ASUS_WMI_DEVID_TOUCHPAD; |
9e1565bc CC |
1036 | |
1037 | if (devid != -1) | |
e12e6d94 | 1038 | supported = asus_wmi_get_devstate_simple(devid) != -ENODEV; |
9e1565bc CC |
1039 | |
1040 | return supported ? attr->mode : 0; | |
1041 | } | |
1042 | ||
4e37b42d | 1043 | static struct attribute_group platform_attribute_group = { |
e12e6d94 CC |
1044 | .is_visible = asus_sysfs_is_visible, |
1045 | .attrs = platform_attributes | |
4e37b42d CC |
1046 | }; |
1047 | ||
e12e6d94 | 1048 | static void asus_wmi_sysfs_exit(struct platform_device *device) |
7f80d734 | 1049 | { |
4e37b42d | 1050 | sysfs_remove_group(&device->dev.kobj, &platform_attribute_group); |
7f80d734 CB |
1051 | } |
1052 | ||
e12e6d94 | 1053 | static int asus_wmi_sysfs_init(struct platform_device *device) |
7f80d734 | 1054 | { |
4e37b42d | 1055 | return sysfs_create_group(&device->dev.kobj, &platform_attribute_group); |
7f80d734 CB |
1056 | } |
1057 | ||
27c136c8 CC |
1058 | /* |
1059 | * Platform device | |
1060 | */ | |
e12e6d94 | 1061 | static int __init asus_wmi_platform_init(struct asus_wmi *asus) |
ee027e4a | 1062 | { |
e12e6d94 | 1063 | return asus_wmi_sysfs_init(asus->platform_device); |
27c136c8 CC |
1064 | } |
1065 | ||
e12e6d94 | 1066 | static void asus_wmi_platform_exit(struct asus_wmi *asus) |
27c136c8 | 1067 | { |
e12e6d94 | 1068 | asus_wmi_sysfs_exit(asus->platform_device); |
27c136c8 CC |
1069 | } |
1070 | ||
8c1b2d83 CC |
1071 | /* |
1072 | * debugfs | |
1073 | */ | |
e12e6d94 CC |
1074 | struct asus_wmi_debugfs_node { |
1075 | struct asus_wmi *asus; | |
8c1b2d83 | 1076 | char *name; |
e12e6d94 | 1077 | int (*show) (struct seq_file *m, void *data); |
8c1b2d83 CC |
1078 | }; |
1079 | ||
1080 | static int show_dsts(struct seq_file *m, void *data) | |
1081 | { | |
e12e6d94 | 1082 | struct asus_wmi *asus = m->private; |
8c1b2d83 CC |
1083 | acpi_status status; |
1084 | u32 retval = -1; | |
1085 | ||
e12e6d94 | 1086 | status = asus_wmi_get_devstate(asus->debug.dev_id, &retval); |
8c1b2d83 CC |
1087 | |
1088 | if (ACPI_FAILURE(status)) | |
1089 | return -EIO; | |
1090 | ||
e12e6d94 | 1091 | seq_printf(m, "DSTS(%x) = %x\n", asus->debug.dev_id, retval); |
8c1b2d83 CC |
1092 | |
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | static int show_devs(struct seq_file *m, void *data) | |
1097 | { | |
e12e6d94 | 1098 | struct asus_wmi *asus = m->private; |
8c1b2d83 CC |
1099 | acpi_status status; |
1100 | u32 retval = -1; | |
1101 | ||
e12e6d94 CC |
1102 | status = asus_wmi_set_devstate(asus->debug.dev_id, |
1103 | asus->debug.ctrl_param, &retval); | |
8c1b2d83 CC |
1104 | if (ACPI_FAILURE(status)) |
1105 | return -EIO; | |
1106 | ||
e12e6d94 CC |
1107 | seq_printf(m, "DEVS(%x, %x) = %x\n", asus->debug.dev_id, |
1108 | asus->debug.ctrl_param, retval); | |
8c1b2d83 CC |
1109 | |
1110 | return 0; | |
1111 | } | |
1112 | ||
e12e6d94 CC |
1113 | static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = { |
1114 | {NULL, "devs", show_devs}, | |
1115 | {NULL, "dsts", show_dsts}, | |
8c1b2d83 CC |
1116 | }; |
1117 | ||
e12e6d94 | 1118 | static int asus_wmi_debugfs_open(struct inode *inode, struct file *file) |
8c1b2d83 | 1119 | { |
e12e6d94 | 1120 | struct asus_wmi_debugfs_node *node = inode->i_private; |
8c1b2d83 | 1121 | |
e12e6d94 | 1122 | return single_open(file, node->show, node->asus); |
8c1b2d83 CC |
1123 | } |
1124 | ||
e12e6d94 | 1125 | static const struct file_operations asus_wmi_debugfs_io_ops = { |
8c1b2d83 | 1126 | .owner = THIS_MODULE, |
e12e6d94 | 1127 | .open = asus_wmi_debugfs_open, |
8c1b2d83 CC |
1128 | .read = seq_read, |
1129 | .llseek = seq_lseek, | |
1130 | .release = single_release, | |
1131 | }; | |
1132 | ||
e12e6d94 | 1133 | static void asus_wmi_debugfs_exit(struct asus_wmi *asus) |
8c1b2d83 | 1134 | { |
e12e6d94 | 1135 | debugfs_remove_recursive(asus->debug.root); |
8c1b2d83 CC |
1136 | } |
1137 | ||
e12e6d94 | 1138 | static int asus_wmi_debugfs_init(struct asus_wmi *asus) |
8c1b2d83 CC |
1139 | { |
1140 | struct dentry *dent; | |
1141 | int i; | |
1142 | ||
e12e6d94 CC |
1143 | asus->debug.root = debugfs_create_dir(asus->driver->name, NULL); |
1144 | if (!asus->debug.root) { | |
8c1b2d83 CC |
1145 | pr_err("failed to create debugfs directory"); |
1146 | goto error_debugfs; | |
1147 | } | |
1148 | ||
e12e6d94 CC |
1149 | dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, |
1150 | asus->debug.root, &asus->debug.dev_id); | |
8c1b2d83 CC |
1151 | if (!dent) |
1152 | goto error_debugfs; | |
1153 | ||
e12e6d94 CC |
1154 | dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, |
1155 | asus->debug.root, &asus->debug.ctrl_param); | |
8c1b2d83 CC |
1156 | if (!dent) |
1157 | goto error_debugfs; | |
1158 | ||
e12e6d94 CC |
1159 | for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) { |
1160 | struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i]; | |
8c1b2d83 | 1161 | |
e12e6d94 | 1162 | node->asus = asus; |
8c1b2d83 | 1163 | dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO, |
e12e6d94 CC |
1164 | asus->debug.root, node, |
1165 | &asus_wmi_debugfs_io_ops); | |
8c1b2d83 CC |
1166 | if (!dent) { |
1167 | pr_err("failed to create debug file: %s\n", node->name); | |
1168 | goto error_debugfs; | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | return 0; | |
1173 | ||
1174 | error_debugfs: | |
e12e6d94 | 1175 | asus_wmi_debugfs_exit(asus); |
8c1b2d83 CC |
1176 | return -ENOMEM; |
1177 | } | |
1178 | ||
27c136c8 CC |
1179 | /* |
1180 | * WMI Driver | |
1181 | */ | |
e12e6d94 | 1182 | static int asus_wmi_add(struct platform_device *pdev) |
afa7c886 | 1183 | { |
e12e6d94 CC |
1184 | struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver); |
1185 | struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv); | |
1186 | struct asus_wmi *asus; | |
ee027e4a | 1187 | acpi_status status; |
27c136c8 | 1188 | int err; |
ee027e4a | 1189 | |
e12e6d94 CC |
1190 | asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL); |
1191 | if (!asus) | |
a04ce290 CC |
1192 | return -ENOMEM; |
1193 | ||
e12e6d94 CC |
1194 | asus->driver = wdrv; |
1195 | asus->platform_device = pdev; | |
1196 | wdrv->platform_device = pdev; | |
1197 | platform_set_drvdata(asus->platform_device, asus); | |
27c136c8 | 1198 | |
e12e6d94 CC |
1199 | if (wdrv->quirks) |
1200 | wdrv->quirks(asus->driver); | |
afa7c886 | 1201 | |
e12e6d94 | 1202 | err = asus_wmi_platform_init(asus); |
27c136c8 CC |
1203 | if (err) |
1204 | goto fail_platform; | |
45f2c693 | 1205 | |
e12e6d94 | 1206 | err = asus_wmi_input_init(asus); |
45f2c693 | 1207 | if (err) |
27c136c8 | 1208 | goto fail_input; |
3d7b1655 | 1209 | |
e12e6d94 | 1210 | err = asus_wmi_led_init(asus); |
084fca63 CC |
1211 | if (err) |
1212 | goto fail_leds; | |
1213 | ||
e12e6d94 | 1214 | err = asus_wmi_rfkill_init(asus); |
ba48fdb9 CC |
1215 | if (err) |
1216 | goto fail_rfkill; | |
1217 | ||
3d7b1655 | 1218 | if (!acpi_video_backlight_support()) { |
e12e6d94 | 1219 | err = asus_wmi_backlight_init(asus); |
b7187265 | 1220 | if (err && err != -ENODEV) |
27c136c8 | 1221 | goto fail_backlight; |
3d7b1655 YW |
1222 | } else |
1223 | pr_info("Backlight controlled by ACPI video driver\n"); | |
45f2c693 | 1224 | |
e12e6d94 CC |
1225 | status = wmi_install_notify_handler(asus->driver->event_guid, |
1226 | asus_wmi_notify, asus); | |
45f2c693 | 1227 | if (ACPI_FAILURE(status)) { |
e12e6d94 | 1228 | pr_err("Unable to register notify handler - %d\n", status); |
45f2c693 | 1229 | err = -ENODEV; |
27c136c8 | 1230 | goto fail_wmi_handler; |
45f2c693 YW |
1231 | } |
1232 | ||
e12e6d94 | 1233 | err = asus_wmi_debugfs_init(asus); |
8c1b2d83 CC |
1234 | if (err) |
1235 | goto fail_debugfs; | |
1236 | ||
a04ce290 | 1237 | return 0; |
45f2c693 | 1238 | |
8c1b2d83 | 1239 | fail_debugfs: |
e12e6d94 | 1240 | wmi_remove_notify_handler(asus->driver->event_guid); |
27c136c8 | 1241 | fail_wmi_handler: |
e12e6d94 | 1242 | asus_wmi_backlight_exit(asus); |
27c136c8 | 1243 | fail_backlight: |
e12e6d94 | 1244 | asus_wmi_rfkill_exit(asus); |
ba48fdb9 | 1245 | fail_rfkill: |
e12e6d94 | 1246 | asus_wmi_led_exit(asus); |
084fca63 | 1247 | fail_leds: |
e12e6d94 | 1248 | asus_wmi_input_exit(asus); |
27c136c8 | 1249 | fail_input: |
e12e6d94 | 1250 | asus_wmi_platform_exit(asus); |
27c136c8 | 1251 | fail_platform: |
e12e6d94 | 1252 | kfree(asus); |
a04ce290 | 1253 | return err; |
45f2c693 YW |
1254 | } |
1255 | ||
e12e6d94 | 1256 | static int asus_wmi_remove(struct platform_device *device) |
45f2c693 | 1257 | { |
e12e6d94 CC |
1258 | struct asus_wmi *asus; |
1259 | ||
1260 | asus = platform_get_drvdata(device); | |
1261 | wmi_remove_notify_handler(asus->driver->event_guid); | |
1262 | asus_wmi_backlight_exit(asus); | |
1263 | asus_wmi_input_exit(asus); | |
1264 | asus_wmi_led_exit(asus); | |
1265 | asus_wmi_rfkill_exit(asus); | |
1266 | asus_wmi_debugfs_exit(asus); | |
1267 | asus_wmi_platform_exit(asus); | |
1268 | ||
1269 | kfree(asus); | |
45f2c693 YW |
1270 | return 0; |
1271 | } | |
1272 | ||
0773d7f9 CC |
1273 | /* |
1274 | * Platform driver - hibernate/resume callbacks | |
1275 | */ | |
e12e6d94 | 1276 | static int asus_hotk_thaw(struct device *device) |
0773d7f9 | 1277 | { |
e12e6d94 | 1278 | struct asus_wmi *asus = dev_get_drvdata(device); |
0773d7f9 | 1279 | |
e12e6d94 | 1280 | if (asus->wlan_rfkill) { |
0773d7f9 CC |
1281 | bool wlan; |
1282 | ||
1283 | /* | |
1284 | * Work around bios bug - acpi _PTS turns off the wireless led | |
1285 | * during suspend. Normally it restores it on resume, but | |
1286 | * we should kick it ourselves in case hibernation is aborted. | |
1287 | */ | |
e12e6d94 CC |
1288 | wlan = asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_WLAN); |
1289 | asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL); | |
0773d7f9 CC |
1290 | } |
1291 | ||
1292 | return 0; | |
1293 | } | |
1294 | ||
e12e6d94 | 1295 | static int asus_hotk_restore(struct device *device) |
0773d7f9 | 1296 | { |
e12e6d94 | 1297 | struct asus_wmi *asus = dev_get_drvdata(device); |
0773d7f9 CC |
1298 | int bl; |
1299 | ||
1300 | /* Refresh both wlan rfkill state and pci hotplug */ | |
e12e6d94 CC |
1301 | if (asus->wlan_rfkill) |
1302 | asus_rfkill_hotplug(asus); | |
0773d7f9 | 1303 | |
e12e6d94 CC |
1304 | if (asus->bluetooth_rfkill) { |
1305 | bl = !asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_BLUETOOTH); | |
1306 | rfkill_set_sw_state(asus->bluetooth_rfkill, bl); | |
2e9e159d | 1307 | } |
e12e6d94 CC |
1308 | if (asus->wimax_rfkill) { |
1309 | bl = !asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_WIMAX); | |
1310 | rfkill_set_sw_state(asus->wimax_rfkill, bl); | |
2e9e159d | 1311 | } |
e12e6d94 CC |
1312 | if (asus->wwan3g_rfkill) { |
1313 | bl = !asus_wmi_get_devstate_simple(ASUS_WMI_DEVID_WWAN3G); | |
1314 | rfkill_set_sw_state(asus->wwan3g_rfkill, bl); | |
0773d7f9 CC |
1315 | } |
1316 | ||
1317 | return 0; | |
1318 | } | |
1319 | ||
e12e6d94 CC |
1320 | static const struct dev_pm_ops asus_pm_ops = { |
1321 | .thaw = asus_hotk_thaw, | |
1322 | .restore = asus_hotk_restore, | |
45f2c693 YW |
1323 | }; |
1324 | ||
e12e6d94 | 1325 | static int asus_wmi_probe(struct platform_device *pdev) |
d358cb55 | 1326 | { |
e12e6d94 CC |
1327 | struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver); |
1328 | struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv); | |
1329 | int ret; | |
d358cb55 | 1330 | |
e12e6d94 CC |
1331 | if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) { |
1332 | pr_warning("Management GUID not found\n"); | |
ee027e4a YW |
1333 | return -ENODEV; |
1334 | } | |
1335 | ||
e12e6d94 CC |
1336 | if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) { |
1337 | pr_warning("Event GUID not found\n"); | |
d358cb55 CC |
1338 | return -ENODEV; |
1339 | } | |
1340 | ||
e12e6d94 CC |
1341 | if (wdrv->probe) { |
1342 | ret = wdrv->probe(pdev); | |
1343 | if (ret) | |
1344 | return ret; | |
1345 | } | |
1346 | ||
1347 | return asus_wmi_add(pdev); | |
a04ce290 | 1348 | } |
45f2c693 | 1349 | |
e12e6d94 | 1350 | static bool used; |
ee027e4a | 1351 | |
e12e6d94 | 1352 | int asus_wmi_register_driver(struct asus_wmi_driver *driver) |
a04ce290 | 1353 | { |
e12e6d94 CC |
1354 | struct platform_driver *platform_driver; |
1355 | struct platform_device *platform_device; | |
1356 | ||
1357 | if (used) | |
1358 | return -EBUSY; | |
1359 | ||
1360 | platform_driver = &driver->platform_driver; | |
1361 | platform_driver->remove = asus_wmi_remove; | |
1362 | platform_driver->driver.owner = driver->owner; | |
1363 | platform_driver->driver.name = driver->name; | |
1364 | platform_driver->driver.pm = &asus_pm_ops; | |
1365 | ||
1366 | platform_device = platform_create_bundle(platform_driver, | |
1367 | asus_wmi_probe, | |
a04ce290 CC |
1368 | NULL, 0, NULL, 0); |
1369 | if (IS_ERR(platform_device)) | |
1370 | return PTR_ERR(platform_device); | |
e12e6d94 CC |
1371 | |
1372 | used = true; | |
1373 | return 0; | |
1374 | } | |
1375 | EXPORT_SYMBOL_GPL(asus_wmi_register_driver); | |
1376 | ||
1377 | void asus_wmi_unregister_driver(struct asus_wmi_driver *driver) | |
1378 | { | |
1379 | platform_device_unregister(driver->platform_device); | |
1380 | platform_driver_unregister(&driver->platform_driver); | |
1381 | used = false; | |
1382 | } | |
1383 | EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver); | |
1384 | ||
1385 | static int __init asus_wmi_init(void) | |
1386 | { | |
1387 | if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) { | |
1388 | pr_info("Asus Management GUID not found"); | |
1389 | return -ENODEV; | |
1390 | } | |
1391 | ||
1392 | pr_info("ASUS WMI generic driver loaded"); | |
ee027e4a YW |
1393 | return 0; |
1394 | } | |
1395 | ||
e12e6d94 | 1396 | static void __exit asus_wmi_exit(void) |
ee027e4a | 1397 | { |
e12e6d94 | 1398 | pr_info("ASUS WMI generic driver unloaded"); |
ee027e4a YW |
1399 | } |
1400 | ||
e12e6d94 CC |
1401 | module_init(asus_wmi_init); |
1402 | module_exit(asus_wmi_exit); |