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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. | |
57ab7dae | 5 | * Copyright(C) 2010-2011 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> | |
e07babde CC |
42 | #include <linux/hwmon.h> |
43 | #include <linux/hwmon-sysfs.h> | |
8c1b2d83 CC |
44 | #include <linux/debugfs.h> |
45 | #include <linux/seq_file.h> | |
45f2c693 | 46 | #include <linux/platform_device.h> |
ee027e4a YW |
47 | #include <acpi/acpi_bus.h> |
48 | #include <acpi/acpi_drivers.h> | |
49 | ||
e12e6d94 | 50 | #include "asus-wmi.h" |
45f2c693 | 51 | |
e12e6d94 CC |
52 | MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>, " |
53 | "Yong Wang <yong.y.wang@intel.com>"); | |
54 | MODULE_DESCRIPTION("Asus Generic WMI Driver"); | |
ee027e4a YW |
55 | MODULE_LICENSE("GPL"); |
56 | ||
e12e6d94 CC |
57 | #define to_platform_driver(drv) \ |
58 | (container_of((drv), struct platform_driver, driver)) | |
d358cb55 | 59 | |
e12e6d94 CC |
60 | #define to_asus_wmi_driver(pdrv) \ |
61 | (container_of((pdrv), struct asus_wmi_driver, platform_driver)) | |
ee027e4a | 62 | |
e12e6d94 | 63 | #define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" |
ee027e4a | 64 | |
33e0e6fe CC |
65 | #define NOTIFY_BRNUP_MIN 0x11 |
66 | #define NOTIFY_BRNUP_MAX 0x1f | |
67 | #define NOTIFY_BRNDOWN_MIN 0x20 | |
68 | #define NOTIFY_BRNDOWN_MAX 0x2e | |
e9809c0b CC |
69 | #define NOTIFY_KBD_BRTUP 0xc4 |
70 | #define NOTIFY_KBD_BRTDWN 0xc5 | |
ee027e4a | 71 | |
43815941 | 72 | /* WMI Methods */ |
2f686b54 CC |
73 | #define ASUS_WMI_METHODID_SPEC 0x43455053 /* BIOS SPECification */ |
74 | #define ASUS_WMI_METHODID_SFBD 0x44424653 /* Set First Boot Device */ | |
75 | #define ASUS_WMI_METHODID_GLCD 0x44434C47 /* Get LCD status */ | |
76 | #define ASUS_WMI_METHODID_GPID 0x44495047 /* Get Panel ID?? (Resol) */ | |
77 | #define ASUS_WMI_METHODID_QMOD 0x444F4D51 /* Quiet MODe */ | |
78 | #define ASUS_WMI_METHODID_SPLV 0x4C425053 /* Set Panel Light Value */ | |
79 | #define ASUS_WMI_METHODID_SFUN 0x4E554653 /* FUNCtionalities */ | |
80 | #define ASUS_WMI_METHODID_SDSP 0x50534453 /* Set DiSPlay output */ | |
81 | #define ASUS_WMI_METHODID_GDSP 0x50534447 /* Get DiSPlay output */ | |
82 | #define ASUS_WMI_METHODID_DEVP 0x50564544 /* DEVice Policy */ | |
83 | #define ASUS_WMI_METHODID_OSVR 0x5256534F /* OS VeRsion */ | |
84 | #define ASUS_WMI_METHODID_DSTS 0x53544344 /* Device STatuS */ | |
85 | #define ASUS_WMI_METHODID_DSTS2 0x53545344 /* Device STatuS #2*/ | |
86 | #define ASUS_WMI_METHODID_BSTS 0x53545342 /* Bios STatuS ? */ | |
87 | #define ASUS_WMI_METHODID_DEVS 0x53564544 /* DEVice Set */ | |
88 | #define ASUS_WMI_METHODID_CFVS 0x53564643 /* CPU Frequency Volt Set */ | |
89 | #define ASUS_WMI_METHODID_KBFT 0x5446424B /* KeyBoard FilTer */ | |
90 | #define ASUS_WMI_METHODID_INIT 0x54494E49 /* INITialize */ | |
91 | #define ASUS_WMI_METHODID_HKEY 0x59454B48 /* Hot KEY ?? */ | |
3d7b1655 | 92 | |
d33da3b6 CC |
93 | #define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE |
94 | ||
43815941 | 95 | /* Wireless */ |
2f686b54 CC |
96 | #define ASUS_WMI_DEVID_HW_SWITCH 0x00010001 |
97 | #define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002 | |
e12e6d94 CC |
98 | #define ASUS_WMI_DEVID_WLAN 0x00010011 |
99 | #define ASUS_WMI_DEVID_BLUETOOTH 0x00010013 | |
2f686b54 | 100 | #define ASUS_WMI_DEVID_GPS 0x00010015 |
e12e6d94 CC |
101 | #define ASUS_WMI_DEVID_WIMAX 0x00010017 |
102 | #define ASUS_WMI_DEVID_WWAN3G 0x00010019 | |
2f686b54 CC |
103 | #define ASUS_WMI_DEVID_UWB 0x00010021 |
104 | ||
105 | /* Leds */ | |
106 | /* 0x000200XX and 0x000400XX */ | |
43815941 CC |
107 | |
108 | /* Backlight and Brightness */ | |
e12e6d94 CC |
109 | #define ASUS_WMI_DEVID_BACKLIGHT 0x00050011 |
110 | #define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012 | |
2f686b54 CC |
111 | #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021 |
112 | #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */ | |
43815941 CC |
113 | |
114 | /* Misc */ | |
e12e6d94 | 115 | #define ASUS_WMI_DEVID_CAMERA 0x00060013 |
43815941 CC |
116 | |
117 | /* Storage */ | |
e12e6d94 | 118 | #define ASUS_WMI_DEVID_CARDREADER 0x00080013 |
43815941 CC |
119 | |
120 | /* Input */ | |
57ab7dae | 121 | #define ASUS_WMI_DEVID_TOUCHPAD 0x00100011 |
e12e6d94 | 122 | #define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012 |
3d7b1655 | 123 | |
2f686b54 CC |
124 | /* Fan, Thermal */ |
125 | #define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011 | |
126 | #define ASUS_WMI_DEVID_FAN_CTRL 0x00110012 | |
127 | ||
128 | /* Power */ | |
129 | #define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012 | |
130 | ||
43815941 | 131 | /* DSTS masks */ |
e12e6d94 | 132 | #define ASUS_WMI_DSTS_STATUS_BIT 0x00000001 |
a75fe0d7 | 133 | #define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002 |
e12e6d94 | 134 | #define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000 |
2f686b54 CC |
135 | #define ASUS_WMI_DSTS_USER_BIT 0x00020000 |
136 | #define ASUS_WMI_DSTS_BIOS_BIT 0x00040000 | |
e12e6d94 CC |
137 | #define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF |
138 | #define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00 | |
ee027e4a | 139 | |
3d7b1655 | 140 | struct bios_args { |
d33da3b6 CC |
141 | u32 arg0; |
142 | u32 arg1; | |
143 | } __packed; | |
3d7b1655 | 144 | |
8c1b2d83 | 145 | /* |
e12e6d94 | 146 | * <platform>/ - debugfs root directory |
8c1b2d83 CC |
147 | * dev_id - current dev_id |
148 | * ctrl_param - current ctrl_param | |
ef343491 | 149 | * method_id - current method_id |
8c1b2d83 CC |
150 | * devs - call DEVS(dev_id, ctrl_param) and print result |
151 | * dsts - call DSTS(dev_id) and print result | |
ef343491 | 152 | * call - call method_id(dev_id, ctrl_param) and print result |
8c1b2d83 | 153 | */ |
e12e6d94 | 154 | struct asus_wmi_debug { |
8c1b2d83 | 155 | struct dentry *root; |
ef343491 | 156 | u32 method_id; |
8c1b2d83 CC |
157 | u32 dev_id; |
158 | u32 ctrl_param; | |
159 | }; | |
160 | ||
a7ce3f04 CC |
161 | struct asus_rfkill { |
162 | struct asus_wmi *asus; | |
163 | struct rfkill *rfkill; | |
164 | u32 dev_id; | |
165 | }; | |
166 | ||
e12e6d94 | 167 | struct asus_wmi { |
1d070f89 | 168 | int dsts_id; |
46dbca87 CC |
169 | int spec; |
170 | int sfun; | |
1d070f89 | 171 | |
81248889 | 172 | struct input_dev *inputdev; |
3d7b1655 | 173 | struct backlight_device *backlight_device; |
e07babde | 174 | struct device *hwmon_device; |
27c136c8 | 175 | struct platform_device *platform_device; |
084fca63 CC |
176 | |
177 | struct led_classdev tpd_led; | |
178 | int tpd_led_wk; | |
e9809c0b CC |
179 | struct led_classdev kbd_led; |
180 | int kbd_led_wk; | |
084fca63 CC |
181 | struct workqueue_struct *led_workqueue; |
182 | struct work_struct tpd_led_work; | |
e9809c0b | 183 | struct work_struct kbd_led_work; |
ba48fdb9 | 184 | |
a7ce3f04 CC |
185 | struct asus_rfkill wlan; |
186 | struct asus_rfkill bluetooth; | |
187 | struct asus_rfkill wimax; | |
188 | struct asus_rfkill wwan3g; | |
8c1b2d83 | 189 | |
afa7c886 CC |
190 | struct hotplug_slot *hotplug_slot; |
191 | struct mutex hotplug_lock; | |
279f8f95 CC |
192 | struct mutex wmi_lock; |
193 | struct workqueue_struct *hotplug_workqueue; | |
194 | struct work_struct hotplug_work; | |
afa7c886 | 195 | |
e12e6d94 CC |
196 | struct asus_wmi_debug debug; |
197 | ||
198 | struct asus_wmi_driver *driver; | |
81248889 YW |
199 | }; |
200 | ||
e12e6d94 | 201 | static int asus_wmi_input_init(struct asus_wmi *asus) |
ee027e4a YW |
202 | { |
203 | int err; | |
204 | ||
e12e6d94 CC |
205 | asus->inputdev = input_allocate_device(); |
206 | if (!asus->inputdev) | |
ee027e4a YW |
207 | return -ENOMEM; |
208 | ||
58a9f397 CC |
209 | asus->inputdev->name = asus->driver->input_name; |
210 | asus->inputdev->phys = asus->driver->input_phys; | |
e12e6d94 CC |
211 | asus->inputdev->id.bustype = BUS_HOST; |
212 | asus->inputdev->dev.parent = &asus->platform_device->dev; | |
39bbde05 | 213 | set_bit(EV_REP, asus->inputdev->evbit); |
ee027e4a | 214 | |
e12e6d94 | 215 | err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL); |
ee027e4a YW |
216 | if (err) |
217 | goto err_free_dev; | |
218 | ||
e12e6d94 | 219 | err = input_register_device(asus->inputdev); |
ee027e4a YW |
220 | if (err) |
221 | goto err_free_keymap; | |
222 | ||
223 | return 0; | |
224 | ||
225 | err_free_keymap: | |
e12e6d94 | 226 | sparse_keymap_free(asus->inputdev); |
ee027e4a | 227 | err_free_dev: |
e12e6d94 | 228 | input_free_device(asus->inputdev); |
ee027e4a YW |
229 | return err; |
230 | } | |
231 | ||
e12e6d94 | 232 | static void asus_wmi_input_exit(struct asus_wmi *asus) |
81248889 | 233 | { |
e12e6d94 CC |
234 | if (asus->inputdev) { |
235 | sparse_keymap_free(asus->inputdev); | |
236 | input_unregister_device(asus->inputdev); | |
81248889 YW |
237 | } |
238 | ||
e12e6d94 | 239 | asus->inputdev = NULL; |
81248889 YW |
240 | } |
241 | ||
d33da3b6 CC |
242 | static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, |
243 | u32 *retval) | |
3d7b1655 | 244 | { |
d33da3b6 CC |
245 | struct bios_args args = { |
246 | .arg0 = arg0, | |
247 | .arg1 = arg1, | |
248 | }; | |
249 | struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; | |
3d7b1655 | 250 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; |
3d7b1655 | 251 | acpi_status status; |
d33da3b6 | 252 | union acpi_object *obj; |
3d7b1655 YW |
253 | u32 tmp; |
254 | ||
d33da3b6 | 255 | status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id, |
afa7c886 | 256 | &input, &output); |
3d7b1655 YW |
257 | |
258 | if (ACPI_FAILURE(status)) | |
d33da3b6 | 259 | goto exit; |
3d7b1655 YW |
260 | |
261 | obj = (union acpi_object *)output.pointer; | |
262 | if (obj && obj->type == ACPI_TYPE_INTEGER) | |
e12e6d94 | 263 | tmp = (u32) obj->integer.value; |
3d7b1655 YW |
264 | else |
265 | tmp = 0; | |
266 | ||
2a3f0064 CC |
267 | if (retval) |
268 | *retval = tmp; | |
3d7b1655 YW |
269 | |
270 | kfree(obj); | |
271 | ||
d33da3b6 CC |
272 | exit: |
273 | if (ACPI_FAILURE(status)) | |
274 | return -EIO; | |
275 | ||
276 | if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) | |
277 | return -ENODEV; | |
3d7b1655 | 278 | |
d33da3b6 | 279 | return 0; |
3d7b1655 YW |
280 | } |
281 | ||
1d070f89 | 282 | static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval) |
3d7b1655 | 283 | { |
1d070f89 | 284 | return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval); |
d33da3b6 | 285 | } |
3d7b1655 | 286 | |
d33da3b6 | 287 | static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param, |
1d070f89 | 288 | u32 *retval) |
d33da3b6 CC |
289 | { |
290 | return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id, | |
291 | ctrl_param, retval); | |
3d7b1655 YW |
292 | } |
293 | ||
5c95638d | 294 | /* Helper for special devices with magic return codes */ |
1d070f89 CC |
295 | static int asus_wmi_get_devstate_bits(struct asus_wmi *asus, |
296 | u32 dev_id, u32 mask) | |
5c95638d CC |
297 | { |
298 | u32 retval = 0; | |
d33da3b6 | 299 | int err; |
5c95638d | 300 | |
1d070f89 | 301 | err = asus_wmi_get_devstate(asus, dev_id, &retval); |
5c95638d | 302 | |
d33da3b6 CC |
303 | if (err < 0) |
304 | return err; | |
5c95638d | 305 | |
e12e6d94 | 306 | if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT)) |
5c95638d CC |
307 | return -ENODEV; |
308 | ||
a75fe0d7 CC |
309 | if (mask == ASUS_WMI_DSTS_STATUS_BIT) { |
310 | if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT) | |
311 | return -ENODEV; | |
312 | } | |
313 | ||
b7187265 CC |
314 | return retval & mask; |
315 | } | |
316 | ||
1d070f89 | 317 | static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id) |
b7187265 | 318 | { |
1d070f89 CC |
319 | return asus_wmi_get_devstate_bits(asus, dev_id, |
320 | ASUS_WMI_DSTS_STATUS_BIT); | |
5c95638d CC |
321 | } |
322 | ||
084fca63 CC |
323 | /* |
324 | * LEDs | |
325 | */ | |
326 | /* | |
327 | * These functions actually update the LED's, and are called from a | |
328 | * workqueue. By doing this as separate work rather than when the LED | |
e12e6d94 | 329 | * subsystem asks, we avoid messing with the Asus ACPI stuff during a |
084fca63 CC |
330 | * potentially bad time, such as a timer interrupt. |
331 | */ | |
332 | static void tpd_led_update(struct work_struct *work) | |
333 | { | |
334 | int ctrl_param; | |
e12e6d94 | 335 | struct asus_wmi *asus; |
084fca63 | 336 | |
e12e6d94 | 337 | asus = container_of(work, struct asus_wmi, tpd_led_work); |
084fca63 | 338 | |
e12e6d94 CC |
339 | ctrl_param = asus->tpd_led_wk; |
340 | asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL); | |
084fca63 CC |
341 | } |
342 | ||
343 | static void tpd_led_set(struct led_classdev *led_cdev, | |
344 | enum led_brightness value) | |
345 | { | |
e12e6d94 | 346 | struct asus_wmi *asus; |
084fca63 | 347 | |
e12e6d94 | 348 | asus = container_of(led_cdev, struct asus_wmi, tpd_led); |
084fca63 | 349 | |
e12e6d94 CC |
350 | asus->tpd_led_wk = !!value; |
351 | queue_work(asus->led_workqueue, &asus->tpd_led_work); | |
084fca63 CC |
352 | } |
353 | ||
e12e6d94 | 354 | static int read_tpd_led_state(struct asus_wmi *asus) |
084fca63 | 355 | { |
1d070f89 | 356 | return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED); |
084fca63 CC |
357 | } |
358 | ||
359 | static enum led_brightness tpd_led_get(struct led_classdev *led_cdev) | |
360 | { | |
e12e6d94 | 361 | struct asus_wmi *asus; |
084fca63 | 362 | |
e12e6d94 | 363 | asus = container_of(led_cdev, struct asus_wmi, tpd_led); |
084fca63 | 364 | |
e12e6d94 | 365 | return read_tpd_led_state(asus); |
084fca63 CC |
366 | } |
367 | ||
e9809c0b | 368 | static void kbd_led_update(struct work_struct *work) |
084fca63 | 369 | { |
e9809c0b CC |
370 | int ctrl_param = 0; |
371 | struct asus_wmi *asus; | |
084fca63 | 372 | |
e9809c0b | 373 | asus = container_of(work, struct asus_wmi, kbd_led_work); |
084fca63 | 374 | |
e9809c0b CC |
375 | /* |
376 | * bits 0-2: level | |
377 | * bit 7: light on/off | |
378 | */ | |
379 | if (asus->kbd_led_wk > 0) | |
380 | ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F); | |
084fca63 | 381 | |
e9809c0b CC |
382 | asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL); |
383 | } | |
084fca63 | 384 | |
e9809c0b CC |
385 | static int kbd_led_read(struct asus_wmi *asus, int *level, int *env) |
386 | { | |
387 | int retval; | |
388 | ||
389 | /* | |
390 | * bits 0-2: level | |
391 | * bit 7: light on/off | |
392 | * bit 8-10: environment (0: dark, 1: normal, 2: light) | |
393 | * bit 17: status unknown | |
394 | */ | |
395 | retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT, | |
396 | 0xFFFF); | |
397 | ||
af965e97 | 398 | /* Unknown status is considered as off */ |
e9809c0b | 399 | if (retval == 0x8000) |
af965e97 | 400 | retval = 0; |
e9809c0b CC |
401 | |
402 | if (retval >= 0) { | |
403 | if (level) | |
404 | *level = retval & 0x80 ? retval & 0x7F : 0; | |
405 | if (env) | |
406 | *env = (retval >> 8) & 0x7F; | |
407 | retval = 0; | |
084fca63 CC |
408 | } |
409 | ||
e9809c0b CC |
410 | return retval; |
411 | } | |
412 | ||
413 | static void kbd_led_set(struct led_classdev *led_cdev, | |
414 | enum led_brightness value) | |
415 | { | |
416 | struct asus_wmi *asus; | |
417 | ||
418 | asus = container_of(led_cdev, struct asus_wmi, kbd_led); | |
419 | ||
420 | if (value > asus->kbd_led.max_brightness) | |
421 | value = asus->kbd_led.max_brightness; | |
422 | else if (value < 0) | |
423 | value = 0; | |
424 | ||
425 | asus->kbd_led_wk = value; | |
426 | queue_work(asus->led_workqueue, &asus->kbd_led_work); | |
427 | } | |
428 | ||
429 | static enum led_brightness kbd_led_get(struct led_classdev *led_cdev) | |
430 | { | |
431 | struct asus_wmi *asus; | |
432 | int retval, value; | |
433 | ||
434 | asus = container_of(led_cdev, struct asus_wmi, kbd_led); | |
435 | ||
436 | retval = kbd_led_read(asus, &value, NULL); | |
437 | ||
438 | if (retval < 0) | |
439 | return retval; | |
440 | ||
441 | return value; | |
084fca63 CC |
442 | } |
443 | ||
e12e6d94 | 444 | static void asus_wmi_led_exit(struct asus_wmi *asus) |
084fca63 | 445 | { |
e12e6d94 CC |
446 | if (asus->tpd_led.dev) |
447 | led_classdev_unregister(&asus->tpd_led); | |
448 | if (asus->led_workqueue) | |
449 | destroy_workqueue(asus->led_workqueue); | |
084fca63 CC |
450 | } |
451 | ||
e9809c0b CC |
452 | static int asus_wmi_led_init(struct asus_wmi *asus) |
453 | { | |
454 | int rv = 0; | |
455 | ||
456 | asus->led_workqueue = create_singlethread_workqueue("led_workqueue"); | |
457 | if (!asus->led_workqueue) | |
458 | return -ENOMEM; | |
459 | ||
460 | if (read_tpd_led_state(asus) >= 0) { | |
461 | INIT_WORK(&asus->tpd_led_work, tpd_led_update); | |
462 | ||
463 | asus->tpd_led.name = "asus::touchpad"; | |
464 | asus->tpd_led.brightness_set = tpd_led_set; | |
465 | asus->tpd_led.brightness_get = tpd_led_get; | |
466 | asus->tpd_led.max_brightness = 1; | |
467 | ||
468 | rv = led_classdev_register(&asus->platform_device->dev, | |
469 | &asus->tpd_led); | |
470 | if (rv) | |
471 | goto error; | |
472 | } | |
473 | ||
474 | if (kbd_led_read(asus, NULL, NULL) >= 0) { | |
475 | INIT_WORK(&asus->kbd_led_work, kbd_led_update); | |
476 | ||
477 | asus->kbd_led.name = "asus::kbd_backlight"; | |
478 | asus->kbd_led.brightness_set = kbd_led_set; | |
479 | asus->kbd_led.brightness_get = kbd_led_get; | |
480 | asus->kbd_led.max_brightness = 3; | |
481 | ||
482 | rv = led_classdev_register(&asus->platform_device->dev, | |
483 | &asus->kbd_led); | |
484 | } | |
485 | ||
486 | error: | |
487 | if (rv) | |
488 | asus_wmi_led_exit(asus); | |
489 | ||
490 | return rv; | |
491 | } | |
492 | ||
493 | ||
afa7c886 CC |
494 | /* |
495 | * PCI hotplug (for wlan rfkill) | |
496 | */ | |
e12e6d94 | 497 | static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus) |
afa7c886 | 498 | { |
1d070f89 | 499 | int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN); |
afa7c886 | 500 | |
5c95638d | 501 | if (result < 0) |
afa7c886 | 502 | return false; |
5c95638d | 503 | return !result; |
afa7c886 CC |
504 | } |
505 | ||
e12e6d94 | 506 | static void asus_rfkill_hotplug(struct asus_wmi *asus) |
afa7c886 CC |
507 | { |
508 | struct pci_dev *dev; | |
509 | struct pci_bus *bus; | |
279f8f95 | 510 | bool blocked; |
afa7c886 CC |
511 | bool absent; |
512 | u32 l; | |
513 | ||
e12e6d94 CC |
514 | mutex_lock(&asus->wmi_lock); |
515 | blocked = asus_wlan_rfkill_blocked(asus); | |
516 | mutex_unlock(&asus->wmi_lock); | |
afa7c886 | 517 | |
e12e6d94 | 518 | mutex_lock(&asus->hotplug_lock); |
afa7c886 | 519 | |
a7ce3f04 CC |
520 | if (asus->wlan.rfkill) |
521 | rfkill_set_sw_state(asus->wlan.rfkill, blocked); | |
279f8f95 | 522 | |
e12e6d94 | 523 | if (asus->hotplug_slot) { |
afa7c886 CC |
524 | bus = pci_find_bus(0, 1); |
525 | if (!bus) { | |
5ad77dcf | 526 | pr_warn("Unable to find PCI bus 1?\n"); |
afa7c886 CC |
527 | goto out_unlock; |
528 | } | |
529 | ||
530 | if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) { | |
531 | pr_err("Unable to read PCI config space?\n"); | |
532 | goto out_unlock; | |
533 | } | |
534 | absent = (l == 0xffffffff); | |
535 | ||
536 | if (blocked != absent) { | |
5ad77dcf JP |
537 | pr_warn("BIOS says wireless lan is %s, " |
538 | "but the pci device is %s\n", | |
539 | blocked ? "blocked" : "unblocked", | |
540 | absent ? "absent" : "present"); | |
541 | pr_warn("skipped wireless hotplug as probably " | |
542 | "inappropriate for this model\n"); | |
afa7c886 CC |
543 | goto out_unlock; |
544 | } | |
545 | ||
546 | if (!blocked) { | |
547 | dev = pci_get_slot(bus, 0); | |
548 | if (dev) { | |
549 | /* Device already present */ | |
550 | pci_dev_put(dev); | |
551 | goto out_unlock; | |
552 | } | |
553 | dev = pci_scan_single_device(bus, 0); | |
554 | if (dev) { | |
555 | pci_bus_assign_resources(bus); | |
556 | if (pci_bus_add_device(dev)) | |
557 | pr_err("Unable to hotplug wifi\n"); | |
558 | } | |
559 | } else { | |
560 | dev = pci_get_slot(bus, 0); | |
561 | if (dev) { | |
562 | pci_remove_bus_device(dev); | |
563 | pci_dev_put(dev); | |
564 | } | |
565 | } | |
566 | } | |
567 | ||
568 | out_unlock: | |
e12e6d94 | 569 | mutex_unlock(&asus->hotplug_lock); |
afa7c886 CC |
570 | } |
571 | ||
e12e6d94 | 572 | static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data) |
afa7c886 | 573 | { |
e12e6d94 | 574 | struct asus_wmi *asus = data; |
afa7c886 CC |
575 | |
576 | if (event != ACPI_NOTIFY_BUS_CHECK) | |
577 | return; | |
578 | ||
279f8f95 | 579 | /* |
e12e6d94 | 580 | * We can't call directly asus_rfkill_hotplug because most |
279f8f95 CC |
581 | * of the time WMBC is still being executed and not reetrant. |
582 | * There is currently no way to tell ACPICA that we want this | |
e12e6d94 | 583 | * method to be serialized, we schedule a asus_rfkill_hotplug |
279f8f95 CC |
584 | * call later, in a safer context. |
585 | */ | |
e12e6d94 | 586 | queue_work(asus->hotplug_workqueue, &asus->hotplug_work); |
afa7c886 CC |
587 | } |
588 | ||
e12e6d94 | 589 | static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node) |
afa7c886 CC |
590 | { |
591 | acpi_status status; | |
592 | acpi_handle handle; | |
593 | ||
594 | status = acpi_get_handle(NULL, node, &handle); | |
595 | ||
596 | if (ACPI_SUCCESS(status)) { | |
597 | status = acpi_install_notify_handler(handle, | |
598 | ACPI_SYSTEM_NOTIFY, | |
e12e6d94 | 599 | asus_rfkill_notify, asus); |
afa7c886 | 600 | if (ACPI_FAILURE(status)) |
5ad77dcf | 601 | pr_warn("Failed to register notify on %s\n", node); |
afa7c886 CC |
602 | } else |
603 | return -ENODEV; | |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
e12e6d94 | 608 | static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node) |
afa7c886 CC |
609 | { |
610 | acpi_status status = AE_OK; | |
611 | acpi_handle handle; | |
612 | ||
613 | status = acpi_get_handle(NULL, node, &handle); | |
614 | ||
615 | if (ACPI_SUCCESS(status)) { | |
616 | status = acpi_remove_notify_handler(handle, | |
e12e6d94 CC |
617 | ACPI_SYSTEM_NOTIFY, |
618 | asus_rfkill_notify); | |
afa7c886 CC |
619 | if (ACPI_FAILURE(status)) |
620 | pr_err("Error removing rfkill notify handler %s\n", | |
e12e6d94 | 621 | node); |
afa7c886 CC |
622 | } |
623 | } | |
624 | ||
e12e6d94 CC |
625 | static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot, |
626 | u8 *value) | |
afa7c886 | 627 | { |
1d070f89 CC |
628 | struct asus_wmi *asus = hotplug_slot->private; |
629 | int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN); | |
afa7c886 | 630 | |
5c95638d CC |
631 | if (result < 0) |
632 | return result; | |
afa7c886 | 633 | |
5c95638d | 634 | *value = !!result; |
afa7c886 CC |
635 | return 0; |
636 | } | |
637 | ||
e12e6d94 | 638 | static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot) |
afa7c886 CC |
639 | { |
640 | kfree(hotplug_slot->info); | |
641 | kfree(hotplug_slot); | |
642 | } | |
643 | ||
e12e6d94 | 644 | static struct hotplug_slot_ops asus_hotplug_slot_ops = { |
afa7c886 | 645 | .owner = THIS_MODULE, |
e12e6d94 CC |
646 | .get_adapter_status = asus_get_adapter_status, |
647 | .get_power_status = asus_get_adapter_status, | |
afa7c886 CC |
648 | }; |
649 | ||
e12e6d94 | 650 | static void asus_hotplug_work(struct work_struct *work) |
279f8f95 | 651 | { |
e12e6d94 | 652 | struct asus_wmi *asus; |
279f8f95 | 653 | |
e12e6d94 CC |
654 | asus = container_of(work, struct asus_wmi, hotplug_work); |
655 | asus_rfkill_hotplug(asus); | |
279f8f95 CC |
656 | } |
657 | ||
e12e6d94 | 658 | static int asus_setup_pci_hotplug(struct asus_wmi *asus) |
afa7c886 CC |
659 | { |
660 | int ret = -ENOMEM; | |
661 | struct pci_bus *bus = pci_find_bus(0, 1); | |
662 | ||
663 | if (!bus) { | |
664 | pr_err("Unable to find wifi PCI bus\n"); | |
665 | return -ENODEV; | |
666 | } | |
667 | ||
e12e6d94 CC |
668 | asus->hotplug_workqueue = |
669 | create_singlethread_workqueue("hotplug_workqueue"); | |
670 | if (!asus->hotplug_workqueue) | |
279f8f95 CC |
671 | goto error_workqueue; |
672 | ||
e12e6d94 | 673 | INIT_WORK(&asus->hotplug_work, asus_hotplug_work); |
279f8f95 | 674 | |
e12e6d94 CC |
675 | asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); |
676 | if (!asus->hotplug_slot) | |
afa7c886 CC |
677 | goto error_slot; |
678 | ||
e12e6d94 CC |
679 | asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), |
680 | GFP_KERNEL); | |
681 | if (!asus->hotplug_slot->info) | |
afa7c886 CC |
682 | goto error_info; |
683 | ||
e12e6d94 CC |
684 | asus->hotplug_slot->private = asus; |
685 | asus->hotplug_slot->release = &asus_cleanup_pci_hotplug; | |
686 | asus->hotplug_slot->ops = &asus_hotplug_slot_ops; | |
687 | asus_get_adapter_status(asus->hotplug_slot, | |
688 | &asus->hotplug_slot->info->adapter_status); | |
afa7c886 | 689 | |
e12e6d94 | 690 | ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi"); |
afa7c886 CC |
691 | if (ret) { |
692 | pr_err("Unable to register hotplug slot - %d\n", ret); | |
693 | goto error_register; | |
694 | } | |
695 | ||
696 | return 0; | |
697 | ||
698 | error_register: | |
e12e6d94 | 699 | kfree(asus->hotplug_slot->info); |
afa7c886 | 700 | error_info: |
e12e6d94 CC |
701 | kfree(asus->hotplug_slot); |
702 | asus->hotplug_slot = NULL; | |
afa7c886 | 703 | error_slot: |
e12e6d94 | 704 | destroy_workqueue(asus->hotplug_workqueue); |
279f8f95 | 705 | error_workqueue: |
afa7c886 CC |
706 | return ret; |
707 | } | |
708 | ||
ba48fdb9 CC |
709 | /* |
710 | * Rfkill devices | |
711 | */ | |
e12e6d94 | 712 | static int asus_rfkill_set(void *data, bool blocked) |
ba48fdb9 | 713 | { |
a7ce3f04 | 714 | struct asus_rfkill *priv = data; |
ba48fdb9 CC |
715 | u32 ctrl_param = !blocked; |
716 | ||
d33da3b6 | 717 | return asus_wmi_set_devstate(priv->dev_id, ctrl_param, NULL); |
ba48fdb9 CC |
718 | } |
719 | ||
e12e6d94 | 720 | static void asus_rfkill_query(struct rfkill *rfkill, void *data) |
ba48fdb9 | 721 | { |
a7ce3f04 | 722 | struct asus_rfkill *priv = data; |
5c95638d | 723 | int result; |
ba48fdb9 | 724 | |
1d070f89 | 725 | result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id); |
ba48fdb9 | 726 | |
5c95638d | 727 | if (result < 0) |
e12e6d94 | 728 | return; |
ba48fdb9 | 729 | |
a7ce3f04 | 730 | rfkill_set_sw_state(priv->rfkill, !result); |
ba48fdb9 CC |
731 | } |
732 | ||
e12e6d94 | 733 | static int asus_rfkill_wlan_set(void *data, bool blocked) |
279f8f95 | 734 | { |
a7ce3f04 CC |
735 | struct asus_rfkill *priv = data; |
736 | struct asus_wmi *asus = priv->asus; | |
279f8f95 CC |
737 | int ret; |
738 | ||
739 | /* | |
740 | * This handler is enabled only if hotplug is enabled. | |
e12e6d94 | 741 | * In this case, the asus_wmi_set_devstate() will |
279f8f95 CC |
742 | * trigger a wmi notification and we need to wait |
743 | * this call to finish before being able to call | |
744 | * any wmi method | |
745 | */ | |
e12e6d94 | 746 | mutex_lock(&asus->wmi_lock); |
a7ce3f04 | 747 | ret = asus_rfkill_set(data, blocked); |
e12e6d94 | 748 | mutex_unlock(&asus->wmi_lock); |
279f8f95 CC |
749 | return ret; |
750 | } | |
751 | ||
e12e6d94 CC |
752 | static const struct rfkill_ops asus_rfkill_wlan_ops = { |
753 | .set_block = asus_rfkill_wlan_set, | |
a7ce3f04 | 754 | .query = asus_rfkill_query, |
279f8f95 CC |
755 | }; |
756 | ||
e12e6d94 CC |
757 | static const struct rfkill_ops asus_rfkill_ops = { |
758 | .set_block = asus_rfkill_set, | |
759 | .query = asus_rfkill_query, | |
ba48fdb9 CC |
760 | }; |
761 | ||
e12e6d94 | 762 | static int asus_new_rfkill(struct asus_wmi *asus, |
a7ce3f04 | 763 | struct asus_rfkill *arfkill, |
e12e6d94 | 764 | const char *name, enum rfkill_type type, int dev_id) |
ba48fdb9 | 765 | { |
1d070f89 | 766 | int result = asus_wmi_get_devstate_simple(asus, dev_id); |
a7ce3f04 | 767 | struct rfkill **rfkill = &arfkill->rfkill; |
ba48fdb9 | 768 | |
5c95638d CC |
769 | if (result < 0) |
770 | return result; | |
ba48fdb9 | 771 | |
a7ce3f04 CC |
772 | arfkill->dev_id = dev_id; |
773 | arfkill->asus = asus; | |
774 | ||
e12e6d94 CC |
775 | if (dev_id == ASUS_WMI_DEVID_WLAN && asus->driver->hotplug_wireless) |
776 | *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type, | |
a7ce3f04 | 777 | &asus_rfkill_wlan_ops, arfkill); |
279f8f95 | 778 | else |
e12e6d94 | 779 | *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type, |
a7ce3f04 | 780 | &asus_rfkill_ops, arfkill); |
ba48fdb9 CC |
781 | |
782 | if (!*rfkill) | |
783 | return -EINVAL; | |
784 | ||
5c95638d | 785 | rfkill_init_sw_state(*rfkill, !result); |
ba48fdb9 CC |
786 | result = rfkill_register(*rfkill); |
787 | if (result) { | |
788 | rfkill_destroy(*rfkill); | |
789 | *rfkill = NULL; | |
790 | return result; | |
791 | } | |
792 | return 0; | |
793 | } | |
794 | ||
e12e6d94 | 795 | static void asus_wmi_rfkill_exit(struct asus_wmi *asus) |
ba48fdb9 | 796 | { |
e12e6d94 CC |
797 | asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5"); |
798 | asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6"); | |
799 | asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7"); | |
a7ce3f04 CC |
800 | if (asus->wlan.rfkill) { |
801 | rfkill_unregister(asus->wlan.rfkill); | |
802 | rfkill_destroy(asus->wlan.rfkill); | |
803 | asus->wlan.rfkill = NULL; | |
ba48fdb9 | 804 | } |
afa7c886 CC |
805 | /* |
806 | * Refresh pci hotplug in case the rfkill state was changed after | |
e12e6d94 | 807 | * asus_unregister_rfkill_notifier() |
afa7c886 | 808 | */ |
e12e6d94 CC |
809 | asus_rfkill_hotplug(asus); |
810 | if (asus->hotplug_slot) | |
811 | pci_hp_deregister(asus->hotplug_slot); | |
812 | if (asus->hotplug_workqueue) | |
813 | destroy_workqueue(asus->hotplug_workqueue); | |
814 | ||
a7ce3f04 CC |
815 | if (asus->bluetooth.rfkill) { |
816 | rfkill_unregister(asus->bluetooth.rfkill); | |
817 | rfkill_destroy(asus->bluetooth.rfkill); | |
818 | asus->bluetooth.rfkill = NULL; | |
ba48fdb9 | 819 | } |
a7ce3f04 CC |
820 | if (asus->wimax.rfkill) { |
821 | rfkill_unregister(asus->wimax.rfkill); | |
822 | rfkill_destroy(asus->wimax.rfkill); | |
823 | asus->wimax.rfkill = NULL; | |
2e9e159d | 824 | } |
a7ce3f04 CC |
825 | if (asus->wwan3g.rfkill) { |
826 | rfkill_unregister(asus->wwan3g.rfkill); | |
827 | rfkill_destroy(asus->wwan3g.rfkill); | |
828 | asus->wwan3g.rfkill = NULL; | |
ba48fdb9 CC |
829 | } |
830 | } | |
831 | ||
e12e6d94 | 832 | static int asus_wmi_rfkill_init(struct asus_wmi *asus) |
ba48fdb9 CC |
833 | { |
834 | int result = 0; | |
835 | ||
e12e6d94 CC |
836 | mutex_init(&asus->hotplug_lock); |
837 | mutex_init(&asus->wmi_lock); | |
afa7c886 | 838 | |
a7ce3f04 CC |
839 | result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan", |
840 | RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN); | |
ba48fdb9 CC |
841 | |
842 | if (result && result != -ENODEV) | |
843 | goto exit; | |
844 | ||
a7ce3f04 | 845 | result = asus_new_rfkill(asus, &asus->bluetooth, |
e12e6d94 CC |
846 | "asus-bluetooth", RFKILL_TYPE_BLUETOOTH, |
847 | ASUS_WMI_DEVID_BLUETOOTH); | |
ba48fdb9 CC |
848 | |
849 | if (result && result != -ENODEV) | |
850 | goto exit; | |
851 | ||
a7ce3f04 CC |
852 | result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax", |
853 | RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX); | |
2e9e159d CC |
854 | |
855 | if (result && result != -ENODEV) | |
856 | goto exit; | |
857 | ||
a7ce3f04 CC |
858 | result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g", |
859 | RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G); | |
ba48fdb9 CC |
860 | |
861 | if (result && result != -ENODEV) | |
862 | goto exit; | |
863 | ||
e12e6d94 | 864 | if (!asus->driver->hotplug_wireless) |
c14d4b8e CC |
865 | goto exit; |
866 | ||
e12e6d94 | 867 | result = asus_setup_pci_hotplug(asus); |
afa7c886 CC |
868 | /* |
869 | * If we get -EBUSY then something else is handling the PCI hotplug - | |
870 | * don't fail in this case | |
871 | */ | |
872 | if (result == -EBUSY) | |
873 | result = 0; | |
874 | ||
e12e6d94 CC |
875 | asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5"); |
876 | asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6"); | |
877 | asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7"); | |
afa7c886 CC |
878 | /* |
879 | * Refresh pci hotplug in case the rfkill state was changed during | |
880 | * setup. | |
881 | */ | |
e12e6d94 | 882 | asus_rfkill_hotplug(asus); |
afa7c886 | 883 | |
ba48fdb9 CC |
884 | exit: |
885 | if (result && result != -ENODEV) | |
e12e6d94 | 886 | asus_wmi_rfkill_exit(asus); |
ba48fdb9 CC |
887 | |
888 | if (result == -ENODEV) | |
889 | result = 0; | |
890 | ||
891 | return result; | |
892 | } | |
893 | ||
e07babde CC |
894 | /* |
895 | * Hwmon device | |
896 | */ | |
897 | static ssize_t asus_hwmon_pwm1(struct device *dev, | |
49979d09 CC |
898 | struct device_attribute *attr, |
899 | char *buf) | |
e07babde CC |
900 | { |
901 | struct asus_wmi *asus = dev_get_drvdata(dev); | |
902 | u32 value; | |
903 | int err; | |
904 | ||
905 | err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value); | |
906 | ||
907 | if (err < 0) | |
908 | return err; | |
909 | ||
49979d09 | 910 | value &= 0xFF; |
e07babde CC |
911 | |
912 | if (value == 1) /* Low Speed */ | |
913 | value = 85; | |
914 | else if (value == 2) | |
915 | value = 170; | |
916 | else if (value == 3) | |
917 | value = 255; | |
918 | else if (value != 0) { | |
919 | pr_err("Unknown fan speed %#x", value); | |
920 | value = -1; | |
921 | } | |
922 | ||
923 | return sprintf(buf, "%d\n", value); | |
924 | } | |
925 | ||
926 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL, 0); | |
927 | ||
928 | static ssize_t | |
929 | show_name(struct device *dev, struct device_attribute *attr, char *buf) | |
930 | { | |
931 | return sprintf(buf, "asus\n"); | |
932 | } | |
933 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); | |
934 | ||
935 | static struct attribute *hwmon_attributes[] = { | |
936 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
937 | &sensor_dev_attr_name.dev_attr.attr, | |
938 | NULL | |
939 | }; | |
940 | ||
941 | static mode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj, | |
942 | struct attribute *attr, int idx) | |
943 | { | |
944 | struct device *dev = container_of(kobj, struct device, kobj); | |
945 | struct platform_device *pdev = to_platform_device(dev->parent); | |
946 | struct asus_wmi *asus = platform_get_drvdata(pdev); | |
947 | bool ok = true; | |
948 | int dev_id = -1; | |
949 | u32 value = ASUS_WMI_UNSUPPORTED_METHOD; | |
950 | ||
951 | if (attr == &sensor_dev_attr_pwm1.dev_attr.attr) | |
952 | dev_id = ASUS_WMI_DEVID_FAN_CTRL; | |
953 | ||
954 | if (dev_id != -1) { | |
955 | int err = asus_wmi_get_devstate(asus, dev_id, &value); | |
956 | ||
957 | if (err < 0) | |
e772aed3 | 958 | return 0; /* can't return negative here */ |
e07babde CC |
959 | } |
960 | ||
961 | if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) { | |
962 | /* | |
963 | * We need to find a better way, probably using sfun, | |
964 | * bits or spec ... | |
965 | * Currently we disable it if: | |
966 | * - ASUS_WMI_UNSUPPORTED_METHOD is returned | |
967 | * - reverved bits are non-zero | |
968 | * - sfun and presence bit are not set | |
969 | */ | |
49979d09 | 970 | if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000 |
e07babde CC |
971 | || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT))) |
972 | ok = false; | |
973 | } | |
974 | ||
975 | return ok ? attr->mode : 0; | |
976 | } | |
977 | ||
978 | static struct attribute_group hwmon_attribute_group = { | |
979 | .is_visible = asus_hwmon_sysfs_is_visible, | |
980 | .attrs = hwmon_attributes | |
981 | }; | |
982 | ||
983 | static void asus_wmi_hwmon_exit(struct asus_wmi *asus) | |
984 | { | |
985 | struct device *hwmon; | |
986 | ||
987 | hwmon = asus->hwmon_device; | |
988 | if (!hwmon) | |
989 | return; | |
990 | sysfs_remove_group(&hwmon->kobj, &hwmon_attribute_group); | |
991 | hwmon_device_unregister(hwmon); | |
992 | asus->hwmon_device = NULL; | |
993 | } | |
994 | ||
995 | static int asus_wmi_hwmon_init(struct asus_wmi *asus) | |
996 | { | |
997 | struct device *hwmon; | |
998 | int result; | |
999 | ||
1000 | hwmon = hwmon_device_register(&asus->platform_device->dev); | |
1001 | if (IS_ERR(hwmon)) { | |
1002 | pr_err("Could not register asus hwmon device\n"); | |
1003 | return PTR_ERR(hwmon); | |
1004 | } | |
49979d09 | 1005 | dev_set_drvdata(hwmon, asus); |
e07babde CC |
1006 | asus->hwmon_device = hwmon; |
1007 | result = sysfs_create_group(&hwmon->kobj, &hwmon_attribute_group); | |
1008 | if (result) | |
1009 | asus_wmi_hwmon_exit(asus); | |
1010 | return result; | |
1011 | } | |
1012 | ||
084fca63 CC |
1013 | /* |
1014 | * Backlight | |
1015 | */ | |
1d070f89 | 1016 | static int read_backlight_power(struct asus_wmi *asus) |
b7187265 | 1017 | { |
1d070f89 | 1018 | int ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BACKLIGHT); |
b7187265 CC |
1019 | |
1020 | if (ret < 0) | |
1021 | return ret; | |
1022 | ||
1023 | return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
1024 | } | |
1025 | ||
8fbea019 | 1026 | static int read_brightness_max(struct asus_wmi *asus) |
3d7b1655 | 1027 | { |
dfed65d5 | 1028 | u32 retval; |
d33da3b6 | 1029 | int err; |
3d7b1655 | 1030 | |
1d070f89 | 1031 | err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval); |
3d7b1655 | 1032 | |
8fbea019 CC |
1033 | if (err < 0) |
1034 | return err; | |
1035 | ||
1036 | retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK; | |
1037 | retval >>= 8; | |
1038 | ||
1039 | if (!retval) | |
1040 | return -ENODEV; | |
1041 | ||
1042 | return retval; | |
1043 | } | |
1044 | ||
1045 | static int read_brightness(struct backlight_device *bd) | |
1046 | { | |
1047 | struct asus_wmi *asus = bl_get_data(bd); | |
0986f25f DC |
1048 | u32 retval; |
1049 | int err; | |
8fbea019 CC |
1050 | |
1051 | err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval); | |
1052 | ||
d33da3b6 CC |
1053 | if (err < 0) |
1054 | return err; | |
1055 | ||
1056 | return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK; | |
3d7b1655 YW |
1057 | } |
1058 | ||
1059 | static int update_bl_status(struct backlight_device *bd) | |
1060 | { | |
1d070f89 | 1061 | struct asus_wmi *asus = bl_get_data(bd); |
dfed65d5 | 1062 | u32 ctrl_param; |
d33da3b6 | 1063 | int power, err; |
3d7b1655 YW |
1064 | |
1065 | ctrl_param = bd->props.brightness; | |
1066 | ||
d33da3b6 CC |
1067 | err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS, |
1068 | ctrl_param, NULL); | |
3d7b1655 | 1069 | |
d33da3b6 CC |
1070 | if (err < 0) |
1071 | return err; | |
b7187265 | 1072 | |
1d070f89 | 1073 | power = read_backlight_power(asus); |
b7187265 CC |
1074 | if (power != -ENODEV && bd->props.power != power) { |
1075 | ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK); | |
d33da3b6 CC |
1076 | err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, |
1077 | ctrl_param, NULL); | |
b7187265 | 1078 | } |
8fbea019 | 1079 | return err; |
3d7b1655 YW |
1080 | } |
1081 | ||
e12e6d94 | 1082 | static const struct backlight_ops asus_wmi_bl_ops = { |
3d7b1655 YW |
1083 | .get_brightness = read_brightness, |
1084 | .update_status = update_bl_status, | |
1085 | }; | |
1086 | ||
e12e6d94 | 1087 | static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code) |
3d7b1655 | 1088 | { |
e12e6d94 | 1089 | struct backlight_device *bd = asus->backlight_device; |
3d7b1655 | 1090 | int old = bd->props.brightness; |
b7670ed6 | 1091 | int new = old; |
3d7b1655 YW |
1092 | |
1093 | if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX) | |
1094 | new = code - NOTIFY_BRNUP_MIN + 1; | |
1095 | else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX) | |
1096 | new = code - NOTIFY_BRNDOWN_MIN; | |
1097 | ||
1098 | bd->props.brightness = new; | |
1099 | backlight_update_status(bd); | |
1100 | backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); | |
1101 | ||
1102 | return old; | |
1103 | } | |
1104 | ||
e12e6d94 | 1105 | static int asus_wmi_backlight_init(struct asus_wmi *asus) |
3d7b1655 YW |
1106 | { |
1107 | struct backlight_device *bd; | |
1108 | struct backlight_properties props; | |
b7187265 CC |
1109 | int max; |
1110 | int power; | |
1111 | ||
8fbea019 | 1112 | max = read_brightness_max(asus); |
b7187265 | 1113 | |
b7187265 CC |
1114 | if (max == -ENODEV) |
1115 | max = 0; | |
8fbea019 CC |
1116 | else if (max < 0) |
1117 | return max; | |
1118 | ||
1119 | power = read_backlight_power(asus); | |
1120 | ||
b7187265 CC |
1121 | if (power == -ENODEV) |
1122 | power = FB_BLANK_UNBLANK; | |
8fbea019 CC |
1123 | else if (power < 0) |
1124 | return power; | |
3d7b1655 YW |
1125 | |
1126 | memset(&props, 0, sizeof(struct backlight_properties)); | |
60cfa098 | 1127 | props.type = BACKLIGHT_PLATFORM; |
b7187265 | 1128 | props.max_brightness = max; |
e12e6d94 CC |
1129 | bd = backlight_device_register(asus->driver->name, |
1130 | &asus->platform_device->dev, asus, | |
1131 | &asus_wmi_bl_ops, &props); | |
3d7b1655 YW |
1132 | if (IS_ERR(bd)) { |
1133 | pr_err("Could not register backlight device\n"); | |
1134 | return PTR_ERR(bd); | |
1135 | } | |
1136 | ||
e12e6d94 | 1137 | asus->backlight_device = bd; |
3d7b1655 YW |
1138 | |
1139 | bd->props.brightness = read_brightness(bd); | |
b7187265 | 1140 | bd->props.power = power; |
3d7b1655 YW |
1141 | backlight_update_status(bd); |
1142 | ||
1143 | return 0; | |
1144 | } | |
1145 | ||
e12e6d94 | 1146 | static void asus_wmi_backlight_exit(struct asus_wmi *asus) |
3d7b1655 | 1147 | { |
e12e6d94 CC |
1148 | if (asus->backlight_device) |
1149 | backlight_device_unregister(asus->backlight_device); | |
3d7b1655 | 1150 | |
e12e6d94 | 1151 | asus->backlight_device = NULL; |
3d7b1655 YW |
1152 | } |
1153 | ||
e12e6d94 | 1154 | static void asus_wmi_notify(u32 value, void *context) |
3d7b1655 | 1155 | { |
e12e6d94 | 1156 | struct asus_wmi *asus = context; |
3d7b1655 YW |
1157 | struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; |
1158 | union acpi_object *obj; | |
1159 | acpi_status status; | |
1160 | int code; | |
1161 | int orig_code; | |
c4453f6a SF |
1162 | unsigned int key_value = 1; |
1163 | bool autorelease = 1; | |
3d7b1655 YW |
1164 | |
1165 | status = wmi_get_event_data(value, &response); | |
1166 | if (status != AE_OK) { | |
1167 | pr_err("bad event status 0x%x\n", status); | |
1168 | return; | |
1169 | } | |
1170 | ||
1171 | obj = (union acpi_object *)response.pointer; | |
1172 | ||
57ab7dae CC |
1173 | if (!obj || obj->type != ACPI_TYPE_INTEGER) |
1174 | goto exit; | |
3d7b1655 | 1175 | |
57ab7dae CC |
1176 | code = obj->integer.value; |
1177 | orig_code = code; | |
3d7b1655 | 1178 | |
c4453f6a SF |
1179 | if (asus->driver->key_filter) { |
1180 | asus->driver->key_filter(asus->driver, &code, &key_value, | |
1181 | &autorelease); | |
1182 | if (code == ASUS_WMI_KEY_IGNORE) | |
1183 | goto exit; | |
1184 | } | |
1185 | ||
57ab7dae CC |
1186 | if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX) |
1187 | code = NOTIFY_BRNUP_MIN; | |
1188 | else if (code >= NOTIFY_BRNDOWN_MIN && | |
1189 | code <= NOTIFY_BRNDOWN_MAX) | |
1190 | code = NOTIFY_BRNDOWN_MIN; | |
3d7b1655 | 1191 | |
57ab7dae CC |
1192 | if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) { |
1193 | if (!acpi_video_backlight_support()) | |
1194 | asus_wmi_backlight_notify(asus, orig_code); | |
c4453f6a SF |
1195 | } else if (!sparse_keymap_report_event(asus->inputdev, code, |
1196 | key_value, autorelease)) | |
57ab7dae | 1197 | pr_info("Unknown key %x pressed\n", code); |
3d7b1655 | 1198 | |
57ab7dae | 1199 | exit: |
3d7b1655 YW |
1200 | kfree(obj); |
1201 | } | |
1202 | ||
9e1565bc CC |
1203 | /* |
1204 | * Sys helpers | |
1205 | */ | |
1206 | static int parse_arg(const char *buf, unsigned long count, int *val) | |
1207 | { | |
1208 | if (!count) | |
1209 | return 0; | |
1210 | if (sscanf(buf, "%i", val) != 1) | |
1211 | return -EINVAL; | |
1212 | return count; | |
1213 | } | |
1214 | ||
1d070f89 CC |
1215 | static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid, |
1216 | const char *buf, size_t count) | |
9e1565bc | 1217 | { |
9e1565bc | 1218 | u32 retval; |
d33da3b6 | 1219 | int rv, err, value; |
9e1565bc | 1220 | |
1d070f89 | 1221 | value = asus_wmi_get_devstate_simple(asus, devid); |
e12e6d94 | 1222 | if (value == -ENODEV) /* Check device presence */ |
9e1565bc CC |
1223 | return value; |
1224 | ||
1225 | rv = parse_arg(buf, count, &value); | |
d33da3b6 CC |
1226 | err = asus_wmi_set_devstate(devid, value, &retval); |
1227 | ||
1228 | if (err < 0) | |
1229 | return err; | |
9e1565bc | 1230 | |
9e1565bc CC |
1231 | return rv; |
1232 | } | |
1233 | ||
1d070f89 | 1234 | static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf) |
9e1565bc | 1235 | { |
1d070f89 | 1236 | int value = asus_wmi_get_devstate_simple(asus, devid); |
9e1565bc CC |
1237 | |
1238 | if (value < 0) | |
1239 | return value; | |
1240 | ||
1241 | return sprintf(buf, "%d\n", value); | |
1242 | } | |
1243 | ||
e12e6d94 | 1244 | #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \ |
9e1565bc CC |
1245 | static ssize_t show_##_name(struct device *dev, \ |
1246 | struct device_attribute *attr, \ | |
1247 | char *buf) \ | |
1248 | { \ | |
1d070f89 CC |
1249 | struct asus_wmi *asus = dev_get_drvdata(dev); \ |
1250 | \ | |
1251 | return show_sys_wmi(asus, _cm, buf); \ | |
9e1565bc CC |
1252 | } \ |
1253 | static ssize_t store_##_name(struct device *dev, \ | |
1254 | struct device_attribute *attr, \ | |
1255 | const char *buf, size_t count) \ | |
1256 | { \ | |
1d070f89 CC |
1257 | struct asus_wmi *asus = dev_get_drvdata(dev); \ |
1258 | \ | |
1259 | return store_sys_wmi(asus, _cm, buf, count); \ | |
9e1565bc CC |
1260 | } \ |
1261 | static struct device_attribute dev_attr_##_name = { \ | |
1262 | .attr = { \ | |
1263 | .name = __stringify(_name), \ | |
1264 | .mode = _mode }, \ | |
1265 | .show = show_##_name, \ | |
1266 | .store = store_##_name, \ | |
1267 | } | |
1268 | ||
e12e6d94 CC |
1269 | ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD); |
1270 | ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA); | |
1271 | ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER); | |
9e1565bc | 1272 | |
67fa38ec DT |
1273 | static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr, |
1274 | const char *buf, size_t count) | |
7f80d734 CB |
1275 | { |
1276 | int value; | |
7f80d734 CB |
1277 | |
1278 | if (!count || sscanf(buf, "%i", &value) != 1) | |
1279 | return -EINVAL; | |
1280 | if (value < 0 || value > 2) | |
1281 | return -EINVAL; | |
1282 | ||
d33da3b6 | 1283 | return asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL); |
7f80d734 CB |
1284 | } |
1285 | ||
1286 | static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv); | |
1287 | ||
4e37b42d CC |
1288 | static struct attribute *platform_attributes[] = { |
1289 | &dev_attr_cpufv.attr, | |
9e1565bc CC |
1290 | &dev_attr_camera.attr, |
1291 | &dev_attr_cardr.attr, | |
4615bb66 | 1292 | &dev_attr_touchpad.attr, |
4e37b42d CC |
1293 | NULL |
1294 | }; | |
1295 | ||
e12e6d94 CC |
1296 | static mode_t asus_sysfs_is_visible(struct kobject *kobj, |
1297 | struct attribute *attr, int idx) | |
9e1565bc | 1298 | { |
1d070f89 CC |
1299 | struct device *dev = container_of(kobj, struct device, kobj); |
1300 | struct platform_device *pdev = to_platform_device(dev); | |
1301 | struct asus_wmi *asus = platform_get_drvdata(pdev); | |
1302 | bool ok = true; | |
9e1565bc CC |
1303 | int devid = -1; |
1304 | ||
1305 | if (attr == &dev_attr_camera.attr) | |
e12e6d94 | 1306 | devid = ASUS_WMI_DEVID_CAMERA; |
9e1565bc | 1307 | else if (attr == &dev_attr_cardr.attr) |
e12e6d94 | 1308 | devid = ASUS_WMI_DEVID_CARDREADER; |
4615bb66 | 1309 | else if (attr == &dev_attr_touchpad.attr) |
e12e6d94 | 1310 | devid = ASUS_WMI_DEVID_TOUCHPAD; |
9e1565bc CC |
1311 | |
1312 | if (devid != -1) | |
1d070f89 | 1313 | ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0); |
9e1565bc | 1314 | |
1d070f89 | 1315 | return ok ? attr->mode : 0; |
9e1565bc CC |
1316 | } |
1317 | ||
4e37b42d | 1318 | static struct attribute_group platform_attribute_group = { |
e12e6d94 CC |
1319 | .is_visible = asus_sysfs_is_visible, |
1320 | .attrs = platform_attributes | |
4e37b42d CC |
1321 | }; |
1322 | ||
e12e6d94 | 1323 | static void asus_wmi_sysfs_exit(struct platform_device *device) |
7f80d734 | 1324 | { |
4e37b42d | 1325 | sysfs_remove_group(&device->dev.kobj, &platform_attribute_group); |
7f80d734 CB |
1326 | } |
1327 | ||
e12e6d94 | 1328 | static int asus_wmi_sysfs_init(struct platform_device *device) |
7f80d734 | 1329 | { |
4e37b42d | 1330 | return sysfs_create_group(&device->dev.kobj, &platform_attribute_group); |
7f80d734 CB |
1331 | } |
1332 | ||
27c136c8 CC |
1333 | /* |
1334 | * Platform device | |
1335 | */ | |
39ddf3bf | 1336 | static int asus_wmi_platform_init(struct asus_wmi *asus) |
ee027e4a | 1337 | { |
46dbca87 CC |
1338 | int rv; |
1339 | ||
1340 | /* INIT enable hotkeys on some models */ | |
1341 | if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv)) | |
1342 | pr_info("Initialization: %#x", rv); | |
1343 | ||
1344 | /* We don't know yet what to do with this version... */ | |
1345 | if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) { | |
57d5c8e7 | 1346 | pr_info("BIOS WMI version: %d.%d", rv >> 16, rv & 0xFF); |
46dbca87 CC |
1347 | asus->spec = rv; |
1348 | } | |
1349 | ||
1350 | /* | |
1351 | * The SFUN method probably allows the original driver to get the list | |
1352 | * of features supported by a given model. For now, 0x0100 or 0x0800 | |
1353 | * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. | |
1354 | * The significance of others is yet to be found. | |
1355 | */ | |
1356 | if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) { | |
1357 | pr_info("SFUN value: %#x", rv); | |
1358 | asus->sfun = rv; | |
1359 | } | |
1360 | ||
1d070f89 CC |
1361 | /* |
1362 | * Eee PC and Notebooks seems to have different method_id for DSTS, | |
1363 | * but it may also be related to the BIOS's SPEC. | |
1364 | * Note, on most Eeepc, there is no way to check if a method exist | |
1365 | * or note, while on notebooks, they returns 0xFFFFFFFE on failure, | |
1366 | * but once again, SPEC may probably be used for that kind of things. | |
1367 | */ | |
1368 | if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL)) | |
1369 | asus->dsts_id = ASUS_WMI_METHODID_DSTS; | |
1370 | else if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS2, 0, 0, NULL)) | |
1371 | asus->dsts_id = ASUS_WMI_METHODID_DSTS2; | |
1372 | ||
1373 | if (!asus->dsts_id) { | |
1374 | pr_err("Can't find DSTS"); | |
1375 | return -ENODEV; | |
1376 | } | |
1377 | ||
e12e6d94 | 1378 | return asus_wmi_sysfs_init(asus->platform_device); |
27c136c8 CC |
1379 | } |
1380 | ||
e12e6d94 | 1381 | static void asus_wmi_platform_exit(struct asus_wmi *asus) |
27c136c8 | 1382 | { |
e12e6d94 | 1383 | asus_wmi_sysfs_exit(asus->platform_device); |
27c136c8 CC |
1384 | } |
1385 | ||
8c1b2d83 CC |
1386 | /* |
1387 | * debugfs | |
1388 | */ | |
e12e6d94 CC |
1389 | struct asus_wmi_debugfs_node { |
1390 | struct asus_wmi *asus; | |
8c1b2d83 | 1391 | char *name; |
e12e6d94 | 1392 | int (*show) (struct seq_file *m, void *data); |
8c1b2d83 CC |
1393 | }; |
1394 | ||
1395 | static int show_dsts(struct seq_file *m, void *data) | |
1396 | { | |
e12e6d94 | 1397 | struct asus_wmi *asus = m->private; |
d33da3b6 | 1398 | int err; |
8c1b2d83 CC |
1399 | u32 retval = -1; |
1400 | ||
1d070f89 | 1401 | err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval); |
8c1b2d83 | 1402 | |
d33da3b6 CC |
1403 | if (err < 0) |
1404 | return err; | |
8c1b2d83 | 1405 | |
ef343491 | 1406 | seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval); |
8c1b2d83 CC |
1407 | |
1408 | return 0; | |
1409 | } | |
1410 | ||
1411 | static int show_devs(struct seq_file *m, void *data) | |
1412 | { | |
e12e6d94 | 1413 | struct asus_wmi *asus = m->private; |
d33da3b6 | 1414 | int err; |
8c1b2d83 CC |
1415 | u32 retval = -1; |
1416 | ||
d33da3b6 CC |
1417 | err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param, |
1418 | &retval); | |
1419 | ||
1420 | if (err < 0) | |
1421 | return err; | |
8c1b2d83 | 1422 | |
ef343491 | 1423 | seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id, |
e12e6d94 | 1424 | asus->debug.ctrl_param, retval); |
8c1b2d83 CC |
1425 | |
1426 | return 0; | |
1427 | } | |
1428 | ||
ef343491 CC |
1429 | static int show_call(struct seq_file *m, void *data) |
1430 | { | |
1431 | struct asus_wmi *asus = m->private; | |
1432 | struct bios_args args = { | |
1433 | .arg0 = asus->debug.dev_id, | |
1434 | .arg1 = asus->debug.ctrl_param, | |
1435 | }; | |
1436 | struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; | |
1437 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; | |
1438 | union acpi_object *obj; | |
1439 | acpi_status status; | |
1440 | ||
1441 | status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, | |
1442 | 1, asus->debug.method_id, | |
1443 | &input, &output); | |
1444 | ||
1445 | if (ACPI_FAILURE(status)) | |
1446 | return -EIO; | |
1447 | ||
1448 | obj = (union acpi_object *)output.pointer; | |
1449 | if (obj && obj->type == ACPI_TYPE_INTEGER) | |
1450 | seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id, | |
1451 | asus->debug.dev_id, asus->debug.ctrl_param, | |
1452 | (u32) obj->integer.value); | |
1453 | else | |
1454 | seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id, | |
1455 | asus->debug.dev_id, asus->debug.ctrl_param, | |
a1d60867 | 1456 | obj ? obj->type : -1); |
ef343491 CC |
1457 | |
1458 | kfree(obj); | |
1459 | ||
1460 | return 0; | |
1461 | } | |
1462 | ||
e12e6d94 CC |
1463 | static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = { |
1464 | {NULL, "devs", show_devs}, | |
1465 | {NULL, "dsts", show_dsts}, | |
ef343491 | 1466 | {NULL, "call", show_call}, |
8c1b2d83 CC |
1467 | }; |
1468 | ||
e12e6d94 | 1469 | static int asus_wmi_debugfs_open(struct inode *inode, struct file *file) |
8c1b2d83 | 1470 | { |
e12e6d94 | 1471 | struct asus_wmi_debugfs_node *node = inode->i_private; |
8c1b2d83 | 1472 | |
e12e6d94 | 1473 | return single_open(file, node->show, node->asus); |
8c1b2d83 CC |
1474 | } |
1475 | ||
e12e6d94 | 1476 | static const struct file_operations asus_wmi_debugfs_io_ops = { |
8c1b2d83 | 1477 | .owner = THIS_MODULE, |
e12e6d94 | 1478 | .open = asus_wmi_debugfs_open, |
8c1b2d83 CC |
1479 | .read = seq_read, |
1480 | .llseek = seq_lseek, | |
1481 | .release = single_release, | |
1482 | }; | |
1483 | ||
e12e6d94 | 1484 | static void asus_wmi_debugfs_exit(struct asus_wmi *asus) |
8c1b2d83 | 1485 | { |
e12e6d94 | 1486 | debugfs_remove_recursive(asus->debug.root); |
8c1b2d83 CC |
1487 | } |
1488 | ||
e12e6d94 | 1489 | static int asus_wmi_debugfs_init(struct asus_wmi *asus) |
8c1b2d83 CC |
1490 | { |
1491 | struct dentry *dent; | |
1492 | int i; | |
1493 | ||
e12e6d94 CC |
1494 | asus->debug.root = debugfs_create_dir(asus->driver->name, NULL); |
1495 | if (!asus->debug.root) { | |
8c1b2d83 CC |
1496 | pr_err("failed to create debugfs directory"); |
1497 | goto error_debugfs; | |
1498 | } | |
1499 | ||
ef343491 CC |
1500 | dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, |
1501 | asus->debug.root, &asus->debug.method_id); | |
1502 | if (!dent) | |
1503 | goto error_debugfs; | |
1504 | ||
e12e6d94 CC |
1505 | dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, |
1506 | asus->debug.root, &asus->debug.dev_id); | |
8c1b2d83 CC |
1507 | if (!dent) |
1508 | goto error_debugfs; | |
1509 | ||
e12e6d94 CC |
1510 | dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, |
1511 | asus->debug.root, &asus->debug.ctrl_param); | |
8c1b2d83 CC |
1512 | if (!dent) |
1513 | goto error_debugfs; | |
1514 | ||
e12e6d94 CC |
1515 | for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) { |
1516 | struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i]; | |
8c1b2d83 | 1517 | |
e12e6d94 | 1518 | node->asus = asus; |
8c1b2d83 | 1519 | dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO, |
e12e6d94 CC |
1520 | asus->debug.root, node, |
1521 | &asus_wmi_debugfs_io_ops); | |
8c1b2d83 CC |
1522 | if (!dent) { |
1523 | pr_err("failed to create debug file: %s\n", node->name); | |
1524 | goto error_debugfs; | |
1525 | } | |
1526 | } | |
1527 | ||
1528 | return 0; | |
1529 | ||
1530 | error_debugfs: | |
e12e6d94 | 1531 | asus_wmi_debugfs_exit(asus); |
8c1b2d83 CC |
1532 | return -ENOMEM; |
1533 | } | |
1534 | ||
27c136c8 CC |
1535 | /* |
1536 | * WMI Driver | |
1537 | */ | |
e12e6d94 | 1538 | static int asus_wmi_add(struct platform_device *pdev) |
afa7c886 | 1539 | { |
e12e6d94 CC |
1540 | struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver); |
1541 | struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv); | |
1542 | struct asus_wmi *asus; | |
ee027e4a | 1543 | acpi_status status; |
27c136c8 | 1544 | int err; |
ee027e4a | 1545 | |
e12e6d94 CC |
1546 | asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL); |
1547 | if (!asus) | |
a04ce290 CC |
1548 | return -ENOMEM; |
1549 | ||
e12e6d94 CC |
1550 | asus->driver = wdrv; |
1551 | asus->platform_device = pdev; | |
1552 | wdrv->platform_device = pdev; | |
1553 | platform_set_drvdata(asus->platform_device, asus); | |
27c136c8 | 1554 | |
e12e6d94 CC |
1555 | if (wdrv->quirks) |
1556 | wdrv->quirks(asus->driver); | |
afa7c886 | 1557 | |
e12e6d94 | 1558 | err = asus_wmi_platform_init(asus); |
27c136c8 CC |
1559 | if (err) |
1560 | goto fail_platform; | |
45f2c693 | 1561 | |
e12e6d94 | 1562 | err = asus_wmi_input_init(asus); |
45f2c693 | 1563 | if (err) |
27c136c8 | 1564 | goto fail_input; |
3d7b1655 | 1565 | |
e07babde CC |
1566 | err = asus_wmi_hwmon_init(asus); |
1567 | if (err) | |
1568 | goto fail_hwmon; | |
1569 | ||
e12e6d94 | 1570 | err = asus_wmi_led_init(asus); |
084fca63 CC |
1571 | if (err) |
1572 | goto fail_leds; | |
1573 | ||
e12e6d94 | 1574 | err = asus_wmi_rfkill_init(asus); |
ba48fdb9 CC |
1575 | if (err) |
1576 | goto fail_rfkill; | |
1577 | ||
3d7b1655 | 1578 | if (!acpi_video_backlight_support()) { |
e12e6d94 | 1579 | err = asus_wmi_backlight_init(asus); |
b7187265 | 1580 | if (err && err != -ENODEV) |
27c136c8 | 1581 | goto fail_backlight; |
3d7b1655 YW |
1582 | } else |
1583 | pr_info("Backlight controlled by ACPI video driver\n"); | |
45f2c693 | 1584 | |
e12e6d94 CC |
1585 | status = wmi_install_notify_handler(asus->driver->event_guid, |
1586 | asus_wmi_notify, asus); | |
45f2c693 | 1587 | if (ACPI_FAILURE(status)) { |
e12e6d94 | 1588 | pr_err("Unable to register notify handler - %d\n", status); |
45f2c693 | 1589 | err = -ENODEV; |
27c136c8 | 1590 | goto fail_wmi_handler; |
45f2c693 YW |
1591 | } |
1592 | ||
e12e6d94 | 1593 | err = asus_wmi_debugfs_init(asus); |
8c1b2d83 CC |
1594 | if (err) |
1595 | goto fail_debugfs; | |
1596 | ||
a04ce290 | 1597 | return 0; |
45f2c693 | 1598 | |
8c1b2d83 | 1599 | fail_debugfs: |
e12e6d94 | 1600 | wmi_remove_notify_handler(asus->driver->event_guid); |
27c136c8 | 1601 | fail_wmi_handler: |
e12e6d94 | 1602 | asus_wmi_backlight_exit(asus); |
27c136c8 | 1603 | fail_backlight: |
e12e6d94 | 1604 | asus_wmi_rfkill_exit(asus); |
ba48fdb9 | 1605 | fail_rfkill: |
e12e6d94 | 1606 | asus_wmi_led_exit(asus); |
084fca63 | 1607 | fail_leds: |
e07babde CC |
1608 | asus_wmi_hwmon_exit(asus); |
1609 | fail_hwmon: | |
e12e6d94 | 1610 | asus_wmi_input_exit(asus); |
27c136c8 | 1611 | fail_input: |
e12e6d94 | 1612 | asus_wmi_platform_exit(asus); |
27c136c8 | 1613 | fail_platform: |
e12e6d94 | 1614 | kfree(asus); |
a04ce290 | 1615 | return err; |
45f2c693 YW |
1616 | } |
1617 | ||
e12e6d94 | 1618 | static int asus_wmi_remove(struct platform_device *device) |
45f2c693 | 1619 | { |
e12e6d94 CC |
1620 | struct asus_wmi *asus; |
1621 | ||
1622 | asus = platform_get_drvdata(device); | |
1623 | wmi_remove_notify_handler(asus->driver->event_guid); | |
1624 | asus_wmi_backlight_exit(asus); | |
1625 | asus_wmi_input_exit(asus); | |
e07babde | 1626 | asus_wmi_hwmon_exit(asus); |
e12e6d94 CC |
1627 | asus_wmi_led_exit(asus); |
1628 | asus_wmi_rfkill_exit(asus); | |
1629 | asus_wmi_debugfs_exit(asus); | |
1630 | asus_wmi_platform_exit(asus); | |
1631 | ||
1632 | kfree(asus); | |
45f2c693 YW |
1633 | return 0; |
1634 | } | |
1635 | ||
0773d7f9 CC |
1636 | /* |
1637 | * Platform driver - hibernate/resume callbacks | |
1638 | */ | |
e12e6d94 | 1639 | static int asus_hotk_thaw(struct device *device) |
0773d7f9 | 1640 | { |
e12e6d94 | 1641 | struct asus_wmi *asus = dev_get_drvdata(device); |
0773d7f9 | 1642 | |
a7ce3f04 | 1643 | if (asus->wlan.rfkill) { |
0773d7f9 CC |
1644 | bool wlan; |
1645 | ||
1646 | /* | |
1647 | * Work around bios bug - acpi _PTS turns off the wireless led | |
1648 | * during suspend. Normally it restores it on resume, but | |
1649 | * we should kick it ourselves in case hibernation is aborted. | |
1650 | */ | |
1d070f89 | 1651 | wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN); |
e12e6d94 | 1652 | asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL); |
0773d7f9 CC |
1653 | } |
1654 | ||
1655 | return 0; | |
1656 | } | |
1657 | ||
e12e6d94 | 1658 | static int asus_hotk_restore(struct device *device) |
0773d7f9 | 1659 | { |
e12e6d94 | 1660 | struct asus_wmi *asus = dev_get_drvdata(device); |
0773d7f9 CC |
1661 | int bl; |
1662 | ||
1663 | /* Refresh both wlan rfkill state and pci hotplug */ | |
a7ce3f04 | 1664 | if (asus->wlan.rfkill) |
e12e6d94 | 1665 | asus_rfkill_hotplug(asus); |
0773d7f9 | 1666 | |
a7ce3f04 | 1667 | if (asus->bluetooth.rfkill) { |
1d070f89 CC |
1668 | bl = !asus_wmi_get_devstate_simple(asus, |
1669 | ASUS_WMI_DEVID_BLUETOOTH); | |
a7ce3f04 | 1670 | rfkill_set_sw_state(asus->bluetooth.rfkill, bl); |
2e9e159d | 1671 | } |
a7ce3f04 | 1672 | if (asus->wimax.rfkill) { |
1d070f89 | 1673 | bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX); |
a7ce3f04 | 1674 | rfkill_set_sw_state(asus->wimax.rfkill, bl); |
2e9e159d | 1675 | } |
a7ce3f04 | 1676 | if (asus->wwan3g.rfkill) { |
1d070f89 | 1677 | bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G); |
a7ce3f04 | 1678 | rfkill_set_sw_state(asus->wwan3g.rfkill, bl); |
0773d7f9 CC |
1679 | } |
1680 | ||
1681 | return 0; | |
1682 | } | |
1683 | ||
e12e6d94 CC |
1684 | static const struct dev_pm_ops asus_pm_ops = { |
1685 | .thaw = asus_hotk_thaw, | |
1686 | .restore = asus_hotk_restore, | |
45f2c693 YW |
1687 | }; |
1688 | ||
e12e6d94 | 1689 | static int asus_wmi_probe(struct platform_device *pdev) |
d358cb55 | 1690 | { |
e12e6d94 CC |
1691 | struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver); |
1692 | struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv); | |
1693 | int ret; | |
d358cb55 | 1694 | |
e12e6d94 | 1695 | if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) { |
5ad77dcf | 1696 | pr_warn("Management GUID not found\n"); |
ee027e4a YW |
1697 | return -ENODEV; |
1698 | } | |
1699 | ||
e12e6d94 | 1700 | if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) { |
5ad77dcf | 1701 | pr_warn("Event GUID not found\n"); |
d358cb55 CC |
1702 | return -ENODEV; |
1703 | } | |
1704 | ||
e12e6d94 CC |
1705 | if (wdrv->probe) { |
1706 | ret = wdrv->probe(pdev); | |
1707 | if (ret) | |
1708 | return ret; | |
1709 | } | |
1710 | ||
1711 | return asus_wmi_add(pdev); | |
a04ce290 | 1712 | } |
45f2c693 | 1713 | |
e12e6d94 | 1714 | static bool used; |
ee027e4a | 1715 | |
8fe8c25e | 1716 | int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver) |
a04ce290 | 1717 | { |
e12e6d94 CC |
1718 | struct platform_driver *platform_driver; |
1719 | struct platform_device *platform_device; | |
1720 | ||
1721 | if (used) | |
1722 | return -EBUSY; | |
1723 | ||
1724 | platform_driver = &driver->platform_driver; | |
1725 | platform_driver->remove = asus_wmi_remove; | |
1726 | platform_driver->driver.owner = driver->owner; | |
1727 | platform_driver->driver.name = driver->name; | |
1728 | platform_driver->driver.pm = &asus_pm_ops; | |
1729 | ||
1730 | platform_device = platform_create_bundle(platform_driver, | |
1731 | asus_wmi_probe, | |
a04ce290 CC |
1732 | NULL, 0, NULL, 0); |
1733 | if (IS_ERR(platform_device)) | |
1734 | return PTR_ERR(platform_device); | |
e12e6d94 CC |
1735 | |
1736 | used = true; | |
1737 | return 0; | |
1738 | } | |
1739 | EXPORT_SYMBOL_GPL(asus_wmi_register_driver); | |
1740 | ||
1741 | void asus_wmi_unregister_driver(struct asus_wmi_driver *driver) | |
1742 | { | |
1743 | platform_device_unregister(driver->platform_device); | |
1744 | platform_driver_unregister(&driver->platform_driver); | |
1745 | used = false; | |
1746 | } | |
1747 | EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver); | |
1748 | ||
1749 | static int __init asus_wmi_init(void) | |
1750 | { | |
1751 | if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) { | |
1752 | pr_info("Asus Management GUID not found"); | |
1753 | return -ENODEV; | |
1754 | } | |
1755 | ||
1756 | pr_info("ASUS WMI generic driver loaded"); | |
ee027e4a YW |
1757 | return 0; |
1758 | } | |
1759 | ||
e12e6d94 | 1760 | static void __exit asus_wmi_exit(void) |
ee027e4a | 1761 | { |
e12e6d94 | 1762 | pr_info("ASUS WMI generic driver unloaded"); |
ee027e4a YW |
1763 | } |
1764 | ||
e12e6d94 CC |
1765 | module_init(asus_wmi_init); |
1766 | module_exit(asus_wmi_exit); |