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e59f8796 EC |
1 | /* |
2 | * eepc-laptop.c - Asus Eee PC extras | |
3 | * | |
4 | * Based on asus_acpi.c as patched for the Eee PC by Asus: | |
5 | * ftp://ftp.asus.com/pub/ASUS/EeePC/701/ASUS_ACPI_071126.rar | |
6 | * Based on eee.c from eeepc-linux | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | */ | |
18 | ||
19b53289 JP |
19 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
20 | ||
e59f8796 EC |
21 | #include <linux/kernel.h> |
22 | #include <linux/module.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/types.h> | |
25 | #include <linux/platform_device.h> | |
a5fa429b CC |
26 | #include <linux/backlight.h> |
27 | #include <linux/fb.h> | |
e1faa9da CC |
28 | #include <linux/hwmon.h> |
29 | #include <linux/hwmon-sysfs.h> | |
e59f8796 EC |
30 | #include <acpi/acpi_drivers.h> |
31 | #include <acpi/acpi_bus.h> | |
32 | #include <linux/uaccess.h> | |
a195dcdc MG |
33 | #include <linux/input.h> |
34 | #include <linux/rfkill.h> | |
5740294c | 35 | #include <linux/pci.h> |
2b121bc2 | 36 | #include <linux/pci_hotplug.h> |
e59f8796 EC |
37 | |
38 | #define EEEPC_LAPTOP_VERSION "0.1" | |
39 | ||
40 | #define EEEPC_HOTK_NAME "Eee PC Hotkey Driver" | |
41 | #define EEEPC_HOTK_FILE "eeepc" | |
42 | #define EEEPC_HOTK_CLASS "hotkey" | |
43 | #define EEEPC_HOTK_DEVICE_NAME "Hotkey" | |
44 | #define EEEPC_HOTK_HID "ASUS010" | |
45 | ||
e59f8796 EC |
46 | |
47 | /* | |
48 | * Definitions for Asus EeePC | |
49 | */ | |
50 | #define NOTIFY_WLAN_ON 0x10 | |
a5fa429b CC |
51 | #define NOTIFY_BRN_MIN 0x20 |
52 | #define NOTIFY_BRN_MAX 0x2f | |
e59f8796 EC |
53 | |
54 | enum { | |
55 | DISABLE_ASL_WLAN = 0x0001, | |
56 | DISABLE_ASL_BLUETOOTH = 0x0002, | |
57 | DISABLE_ASL_IRDA = 0x0004, | |
58 | DISABLE_ASL_CAMERA = 0x0008, | |
59 | DISABLE_ASL_TV = 0x0010, | |
60 | DISABLE_ASL_GPS = 0x0020, | |
61 | DISABLE_ASL_DISPLAYSWITCH = 0x0040, | |
62 | DISABLE_ASL_MODEM = 0x0080, | |
b7b700d4 CC |
63 | DISABLE_ASL_CARDREADER = 0x0100, |
64 | DISABLE_ASL_3G = 0x0200, | |
65 | DISABLE_ASL_WIMAX = 0x0400, | |
66 | DISABLE_ASL_HWCF = 0x0800 | |
e59f8796 EC |
67 | }; |
68 | ||
69 | enum { | |
70 | CM_ASL_WLAN = 0, | |
71 | CM_ASL_BLUETOOTH, | |
72 | CM_ASL_IRDA, | |
73 | CM_ASL_1394, | |
74 | CM_ASL_CAMERA, | |
75 | CM_ASL_TV, | |
76 | CM_ASL_GPS, | |
77 | CM_ASL_DVDROM, | |
78 | CM_ASL_DISPLAYSWITCH, | |
79 | CM_ASL_PANELBRIGHT, | |
80 | CM_ASL_BIOSFLASH, | |
81 | CM_ASL_ACPIFLASH, | |
82 | CM_ASL_CPUFV, | |
83 | CM_ASL_CPUTEMPERATURE, | |
84 | CM_ASL_FANCPU, | |
85 | CM_ASL_FANCHASSIS, | |
86 | CM_ASL_USBPORT1, | |
87 | CM_ASL_USBPORT2, | |
88 | CM_ASL_USBPORT3, | |
89 | CM_ASL_MODEM, | |
90 | CM_ASL_CARDREADER, | |
b7b700d4 CC |
91 | CM_ASL_3G, |
92 | CM_ASL_WIMAX, | |
93 | CM_ASL_HWCF, | |
94 | CM_ASL_LID, | |
95 | CM_ASL_TYPE, | |
96 | CM_ASL_PANELPOWER, /*P901*/ | |
97 | CM_ASL_TPD | |
e59f8796 EC |
98 | }; |
99 | ||
14109461 | 100 | static const char *cm_getv[] = { |
3af9bfcb | 101 | "WLDG", "BTHG", NULL, NULL, |
e59f8796 EC |
102 | "CAMG", NULL, NULL, NULL, |
103 | NULL, "PBLG", NULL, NULL, | |
104 | "CFVG", NULL, NULL, NULL, | |
105 | "USBG", NULL, NULL, "MODG", | |
b7b700d4 CC |
106 | "CRDG", "M3GG", "WIMG", "HWCF", |
107 | "LIDG", "TYPE", "PBPG", "TPDG" | |
e59f8796 EC |
108 | }; |
109 | ||
14109461 | 110 | static const char *cm_setv[] = { |
3af9bfcb | 111 | "WLDS", "BTHS", NULL, NULL, |
e59f8796 EC |
112 | "CAMS", NULL, NULL, NULL, |
113 | "SDSP", "PBLS", "HDPS", NULL, | |
114 | "CFVS", NULL, NULL, NULL, | |
115 | "USBG", NULL, NULL, "MODS", | |
b7b700d4 CC |
116 | "CRDS", "M3GS", "WIMS", NULL, |
117 | NULL, NULL, "PBPS", "TPDS" | |
e59f8796 EC |
118 | }; |
119 | ||
e1faa9da CC |
120 | #define EEEPC_EC "\\_SB.PCI0.SBRG.EC0." |
121 | ||
122 | #define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */ | |
123 | #define EEEPC_EC_SC02 0x63 | |
124 | #define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */ | |
125 | #define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */ | |
126 | #define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */ | |
127 | #define EEEPC_EC_SFB3 0xD3 | |
128 | ||
e59f8796 EC |
129 | /* |
130 | * This is the main structure, we can use it to store useful information | |
131 | * about the hotk device | |
132 | */ | |
133 | struct eeepc_hotk { | |
134 | struct acpi_device *device; /* the device we are in */ | |
135 | acpi_handle handle; /* the handle of the hotk device */ | |
136 | u32 cm_supported; /* the control methods supported | |
137 | by this BIOS */ | |
138 | uint init_flag; /* Init flags */ | |
139 | u16 event_count[128]; /* count for each event */ | |
a195dcdc MG |
140 | struct input_dev *inputdev; |
141 | u16 *keycode_map; | |
142 | struct rfkill *eeepc_wlan_rfkill; | |
143 | struct rfkill *eeepc_bluetooth_rfkill; | |
2b121bc2 | 144 | struct hotplug_slot *hotplug_slot; |
e59f8796 EC |
145 | }; |
146 | ||
147 | /* The actual device the driver binds to */ | |
148 | static struct eeepc_hotk *ehotk; | |
149 | ||
150 | /* Platform device/driver */ | |
151 | static struct platform_driver platform_driver = { | |
152 | .driver = { | |
153 | .name = EEEPC_HOTK_FILE, | |
154 | .owner = THIS_MODULE, | |
155 | } | |
156 | }; | |
157 | ||
158 | static struct platform_device *platform_device; | |
159 | ||
a195dcdc MG |
160 | struct key_entry { |
161 | char type; | |
162 | u8 code; | |
163 | u16 keycode; | |
164 | }; | |
165 | ||
166 | enum { KE_KEY, KE_END }; | |
167 | ||
168 | static struct key_entry eeepc_keymap[] = { | |
169 | /* Sleep already handled via generic ACPI code */ | |
170 | {KE_KEY, 0x10, KEY_WLAN }, | |
978605c4 | 171 | {KE_KEY, 0x11, KEY_WLAN }, |
a195dcdc MG |
172 | {KE_KEY, 0x12, KEY_PROG1 }, |
173 | {KE_KEY, 0x13, KEY_MUTE }, | |
174 | {KE_KEY, 0x14, KEY_VOLUMEDOWN }, | |
175 | {KE_KEY, 0x15, KEY_VOLUMEUP }, | |
b5f6f265 MG |
176 | {KE_KEY, 0x1a, KEY_COFFEE }, |
177 | {KE_KEY, 0x1b, KEY_ZOOM }, | |
178 | {KE_KEY, 0x1c, KEY_PROG2 }, | |
179 | {KE_KEY, 0x1d, KEY_PROG3 }, | |
64b86b65 DS |
180 | {KE_KEY, NOTIFY_BRN_MIN, KEY_BRIGHTNESSDOWN }, |
181 | {KE_KEY, NOTIFY_BRN_MIN + 2, KEY_BRIGHTNESSUP }, | |
a195dcdc MG |
182 | {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE }, |
183 | {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE }, | |
184 | {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE }, | |
185 | {KE_END, 0}, | |
186 | }; | |
187 | ||
e59f8796 EC |
188 | /* |
189 | * The hotkey driver declaration | |
190 | */ | |
191 | static int eeepc_hotk_add(struct acpi_device *device); | |
192 | static int eeepc_hotk_remove(struct acpi_device *device, int type); | |
96e9cfeb | 193 | static int eeepc_hotk_resume(struct acpi_device *device); |
d9b9bd7b | 194 | static void eeepc_hotk_notify(struct acpi_device *device, u32 event); |
e59f8796 EC |
195 | |
196 | static const struct acpi_device_id eeepc_device_ids[] = { | |
197 | {EEEPC_HOTK_HID, 0}, | |
198 | {"", 0}, | |
199 | }; | |
200 | MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); | |
201 | ||
202 | static struct acpi_driver eeepc_hotk_driver = { | |
203 | .name = EEEPC_HOTK_NAME, | |
204 | .class = EEEPC_HOTK_CLASS, | |
205 | .ids = eeepc_device_ids, | |
d9b9bd7b | 206 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, |
e59f8796 EC |
207 | .ops = { |
208 | .add = eeepc_hotk_add, | |
209 | .remove = eeepc_hotk_remove, | |
96e9cfeb | 210 | .resume = eeepc_hotk_resume, |
d9b9bd7b | 211 | .notify = eeepc_hotk_notify, |
e59f8796 EC |
212 | }, |
213 | }; | |
214 | ||
2b121bc2 CC |
215 | /* PCI hotplug ops */ |
216 | static int eeepc_get_adapter_status(struct hotplug_slot *slot, u8 *value); | |
217 | ||
218 | static struct hotplug_slot_ops eeepc_hotplug_slot_ops = { | |
219 | .owner = THIS_MODULE, | |
220 | .get_adapter_status = eeepc_get_adapter_status, | |
221 | .get_power_status = eeepc_get_adapter_status, | |
222 | }; | |
223 | ||
a5fa429b CC |
224 | /* The backlight device /sys/class/backlight */ |
225 | static struct backlight_device *eeepc_backlight_device; | |
226 | ||
e1faa9da CC |
227 | /* The hwmon device */ |
228 | static struct device *eeepc_hwmon_device; | |
229 | ||
a5fa429b CC |
230 | /* |
231 | * The backlight class declaration | |
232 | */ | |
233 | static int read_brightness(struct backlight_device *bd); | |
234 | static int update_bl_status(struct backlight_device *bd); | |
235 | static struct backlight_ops eeepcbl_ops = { | |
236 | .get_brightness = read_brightness, | |
237 | .update_status = update_bl_status, | |
238 | }; | |
239 | ||
e59f8796 EC |
240 | MODULE_AUTHOR("Corentin Chary, Eric Cooper"); |
241 | MODULE_DESCRIPTION(EEEPC_HOTK_NAME); | |
242 | MODULE_LICENSE("GPL"); | |
243 | ||
244 | /* | |
245 | * ACPI Helpers | |
246 | */ | |
247 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
248 | struct acpi_buffer *output) | |
249 | { | |
250 | struct acpi_object_list params; | |
251 | union acpi_object in_obj; | |
252 | acpi_status status; | |
253 | ||
254 | params.count = 1; | |
255 | params.pointer = &in_obj; | |
256 | in_obj.type = ACPI_TYPE_INTEGER; | |
257 | in_obj.integer.value = val; | |
258 | ||
259 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); | |
260 | return (status == AE_OK ? 0 : -1); | |
261 | } | |
262 | ||
263 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) | |
264 | { | |
265 | acpi_status status; | |
27663c58 | 266 | unsigned long long result; |
e59f8796 EC |
267 | |
268 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); | |
269 | if (ACPI_FAILURE(status)) { | |
270 | *val = -1; | |
271 | return -1; | |
272 | } else { | |
273 | *val = result; | |
274 | return 0; | |
275 | } | |
276 | } | |
277 | ||
278 | static int set_acpi(int cm, int value) | |
279 | { | |
280 | if (ehotk->cm_supported & (0x1 << cm)) { | |
281 | const char *method = cm_setv[cm]; | |
282 | if (method == NULL) | |
283 | return -ENODEV; | |
284 | if (write_acpi_int(ehotk->handle, method, value, NULL)) | |
19b53289 | 285 | pr_warning("Error writing %s\n", method); |
e59f8796 EC |
286 | } |
287 | return 0; | |
288 | } | |
289 | ||
290 | static int get_acpi(int cm) | |
291 | { | |
292 | int value = -1; | |
293 | if ((ehotk->cm_supported & (0x1 << cm))) { | |
294 | const char *method = cm_getv[cm]; | |
295 | if (method == NULL) | |
296 | return -ENODEV; | |
297 | if (read_acpi_int(ehotk->handle, method, &value)) | |
19b53289 | 298 | pr_warning("Error reading %s\n", method); |
e59f8796 EC |
299 | } |
300 | return value; | |
301 | } | |
302 | ||
a5fa429b CC |
303 | /* |
304 | * Backlight | |
305 | */ | |
306 | static int read_brightness(struct backlight_device *bd) | |
307 | { | |
308 | return get_acpi(CM_ASL_PANELBRIGHT); | |
309 | } | |
310 | ||
311 | static int set_brightness(struct backlight_device *bd, int value) | |
312 | { | |
313 | value = max(0, min(15, value)); | |
314 | return set_acpi(CM_ASL_PANELBRIGHT, value); | |
315 | } | |
316 | ||
317 | static int update_bl_status(struct backlight_device *bd) | |
318 | { | |
319 | return set_brightness(bd, bd->props.brightness); | |
320 | } | |
321 | ||
a195dcdc MG |
322 | /* |
323 | * Rfkill helpers | |
324 | */ | |
325 | ||
19d337df | 326 | static bool eeepc_wlan_rfkill_blocked(void) |
a195dcdc MG |
327 | { |
328 | if (get_acpi(CM_ASL_WLAN) == 1) | |
19d337df JB |
329 | return false; |
330 | return true; | |
a195dcdc MG |
331 | } |
332 | ||
19d337df | 333 | static int eeepc_rfkill_set(void *data, bool blocked) |
a195dcdc | 334 | { |
19d337df JB |
335 | unsigned long asl = (unsigned long)data; |
336 | return set_acpi(asl, !blocked); | |
a195dcdc MG |
337 | } |
338 | ||
19d337df JB |
339 | static const struct rfkill_ops eeepc_rfkill_ops = { |
340 | .set_block = eeepc_rfkill_set, | |
341 | }; | |
a195dcdc | 342 | |
cede2cb6 PE |
343 | static void __init eeepc_enable_camera(void) |
344 | { | |
345 | /* | |
346 | * If the following call to set_acpi() fails, it's because there's no | |
347 | * camera so we can ignore the error. | |
348 | */ | |
349 | set_acpi(CM_ASL_CAMERA, 1); | |
350 | } | |
351 | ||
e59f8796 EC |
352 | /* |
353 | * Sys helpers | |
354 | */ | |
355 | static int parse_arg(const char *buf, unsigned long count, int *val) | |
356 | { | |
357 | if (!count) | |
358 | return 0; | |
359 | if (sscanf(buf, "%i", val) != 1) | |
360 | return -EINVAL; | |
361 | return count; | |
362 | } | |
363 | ||
364 | static ssize_t store_sys_acpi(int cm, const char *buf, size_t count) | |
365 | { | |
366 | int rv, value; | |
367 | ||
368 | rv = parse_arg(buf, count, &value); | |
369 | if (rv > 0) | |
370 | set_acpi(cm, value); | |
371 | return rv; | |
372 | } | |
373 | ||
374 | static ssize_t show_sys_acpi(int cm, char *buf) | |
375 | { | |
376 | return sprintf(buf, "%d\n", get_acpi(cm)); | |
377 | } | |
378 | ||
379 | #define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \ | |
380 | static ssize_t show_##_name(struct device *dev, \ | |
381 | struct device_attribute *attr, \ | |
382 | char *buf) \ | |
383 | { \ | |
384 | return show_sys_acpi(_cm, buf); \ | |
385 | } \ | |
386 | static ssize_t store_##_name(struct device *dev, \ | |
387 | struct device_attribute *attr, \ | |
388 | const char *buf, size_t count) \ | |
389 | { \ | |
390 | return store_sys_acpi(_cm, buf, count); \ | |
391 | } \ | |
392 | static struct device_attribute dev_attr_##_name = { \ | |
393 | .attr = { \ | |
394 | .name = __stringify(_name), \ | |
395 | .mode = 0644 }, \ | |
396 | .show = show_##_name, \ | |
397 | .store = store_##_name, \ | |
398 | } | |
399 | ||
400 | EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA); | |
401 | EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER); | |
402 | EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH); | |
b31d0fde CC |
403 | |
404 | struct eeepc_cpufv { | |
405 | int num; | |
406 | int cur; | |
407 | }; | |
408 | ||
409 | static int get_cpufv(struct eeepc_cpufv *c) | |
410 | { | |
411 | c->cur = get_acpi(CM_ASL_CPUFV); | |
412 | c->num = (c->cur >> 8) & 0xff; | |
413 | c->cur &= 0xff; | |
414 | if (c->cur < 0 || c->num <= 0 || c->num > 12) | |
415 | return -ENODEV; | |
416 | return 0; | |
417 | } | |
418 | ||
419 | static ssize_t show_available_cpufv(struct device *dev, | |
420 | struct device_attribute *attr, | |
421 | char *buf) | |
422 | { | |
423 | struct eeepc_cpufv c; | |
424 | int i; | |
425 | ssize_t len = 0; | |
426 | ||
427 | if (get_cpufv(&c)) | |
428 | return -ENODEV; | |
429 | for (i = 0; i < c.num; i++) | |
430 | len += sprintf(buf + len, "%d ", i); | |
431 | len += sprintf(buf + len, "\n"); | |
432 | return len; | |
433 | } | |
434 | ||
435 | static ssize_t show_cpufv(struct device *dev, | |
436 | struct device_attribute *attr, | |
437 | char *buf) | |
438 | { | |
439 | struct eeepc_cpufv c; | |
440 | ||
441 | if (get_cpufv(&c)) | |
442 | return -ENODEV; | |
443 | return sprintf(buf, "%#x\n", (c.num << 8) | c.cur); | |
444 | } | |
445 | ||
446 | static ssize_t store_cpufv(struct device *dev, | |
447 | struct device_attribute *attr, | |
448 | const char *buf, size_t count) | |
449 | { | |
450 | struct eeepc_cpufv c; | |
451 | int rv, value; | |
452 | ||
453 | if (get_cpufv(&c)) | |
454 | return -ENODEV; | |
455 | rv = parse_arg(buf, count, &value); | |
456 | if (rv < 0) | |
457 | return rv; | |
458 | if (!rv || value < 0 || value >= c.num) | |
459 | return -EINVAL; | |
460 | set_acpi(CM_ASL_CPUFV, value); | |
461 | return rv; | |
462 | } | |
463 | ||
464 | static struct device_attribute dev_attr_cpufv = { | |
465 | .attr = { | |
466 | .name = "cpufv", | |
467 | .mode = 0644 }, | |
468 | .show = show_cpufv, | |
469 | .store = store_cpufv | |
470 | }; | |
471 | ||
472 | static struct device_attribute dev_attr_available_cpufv = { | |
473 | .attr = { | |
474 | .name = "available_cpufv", | |
475 | .mode = 0444 }, | |
476 | .show = show_available_cpufv | |
477 | }; | |
e59f8796 EC |
478 | |
479 | static struct attribute *platform_attributes[] = { | |
480 | &dev_attr_camera.attr, | |
481 | &dev_attr_cardr.attr, | |
482 | &dev_attr_disp.attr, | |
158ca1d7 | 483 | &dev_attr_cpufv.attr, |
b31d0fde | 484 | &dev_attr_available_cpufv.attr, |
e59f8796 EC |
485 | NULL |
486 | }; | |
487 | ||
488 | static struct attribute_group platform_attribute_group = { | |
489 | .attrs = platform_attributes | |
490 | }; | |
491 | ||
492 | /* | |
493 | * Hotkey functions | |
494 | */ | |
a195dcdc MG |
495 | static struct key_entry *eepc_get_entry_by_scancode(int code) |
496 | { | |
497 | struct key_entry *key; | |
498 | ||
499 | for (key = eeepc_keymap; key->type != KE_END; key++) | |
500 | if (code == key->code) | |
501 | return key; | |
502 | ||
503 | return NULL; | |
504 | } | |
505 | ||
506 | static struct key_entry *eepc_get_entry_by_keycode(int code) | |
507 | { | |
508 | struct key_entry *key; | |
509 | ||
510 | for (key = eeepc_keymap; key->type != KE_END; key++) | |
511 | if (code == key->keycode && key->type == KE_KEY) | |
512 | return key; | |
513 | ||
514 | return NULL; | |
515 | } | |
516 | ||
517 | static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) | |
518 | { | |
519 | struct key_entry *key = eepc_get_entry_by_scancode(scancode); | |
520 | ||
521 | if (key && key->type == KE_KEY) { | |
522 | *keycode = key->keycode; | |
523 | return 0; | |
524 | } | |
525 | ||
526 | return -EINVAL; | |
527 | } | |
528 | ||
529 | static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) | |
530 | { | |
531 | struct key_entry *key; | |
532 | int old_keycode; | |
533 | ||
534 | if (keycode < 0 || keycode > KEY_MAX) | |
535 | return -EINVAL; | |
536 | ||
537 | key = eepc_get_entry_by_scancode(scancode); | |
538 | if (key && key->type == KE_KEY) { | |
539 | old_keycode = key->keycode; | |
540 | key->keycode = keycode; | |
541 | set_bit(keycode, dev->keybit); | |
542 | if (!eepc_get_entry_by_keycode(old_keycode)) | |
543 | clear_bit(old_keycode, dev->keybit); | |
544 | return 0; | |
545 | } | |
546 | ||
547 | return -EINVAL; | |
548 | } | |
549 | ||
e59f8796 EC |
550 | static int eeepc_hotk_check(void) |
551 | { | |
a195dcdc | 552 | const struct key_entry *key; |
e59f8796 EC |
553 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
554 | int result; | |
555 | ||
556 | result = acpi_bus_get_status(ehotk->device); | |
557 | if (result) | |
558 | return result; | |
559 | if (ehotk->device->status.present) { | |
560 | if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag, | |
561 | &buffer)) { | |
19b53289 | 562 | pr_err("Hotkey initialization failed\n"); |
e59f8796 EC |
563 | return -ENODEV; |
564 | } else { | |
19b53289 | 565 | pr_notice("Hotkey init flags 0x%x\n", ehotk->init_flag); |
e59f8796 EC |
566 | } |
567 | /* get control methods supported */ | |
568 | if (read_acpi_int(ehotk->handle, "CMSG" | |
569 | , &ehotk->cm_supported)) { | |
19b53289 | 570 | pr_err("Get control methods supported failed\n"); |
e59f8796 EC |
571 | return -ENODEV; |
572 | } else { | |
19b53289 JP |
573 | pr_info("Get control methods supported: 0x%x\n", |
574 | ehotk->cm_supported); | |
e59f8796 | 575 | } |
a195dcdc MG |
576 | ehotk->inputdev = input_allocate_device(); |
577 | if (!ehotk->inputdev) { | |
19b53289 | 578 | pr_info("Unable to allocate input device\n"); |
a195dcdc MG |
579 | return 0; |
580 | } | |
581 | ehotk->inputdev->name = "Asus EeePC extra buttons"; | |
582 | ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0"; | |
583 | ehotk->inputdev->id.bustype = BUS_HOST; | |
584 | ehotk->inputdev->getkeycode = eeepc_getkeycode; | |
585 | ehotk->inputdev->setkeycode = eeepc_setkeycode; | |
586 | ||
587 | for (key = eeepc_keymap; key->type != KE_END; key++) { | |
588 | switch (key->type) { | |
589 | case KE_KEY: | |
590 | set_bit(EV_KEY, ehotk->inputdev->evbit); | |
591 | set_bit(key->keycode, ehotk->inputdev->keybit); | |
592 | break; | |
593 | } | |
594 | } | |
595 | result = input_register_device(ehotk->inputdev); | |
596 | if (result) { | |
19b53289 | 597 | pr_info("Unable to register input device\n"); |
a195dcdc MG |
598 | input_free_device(ehotk->inputdev); |
599 | return 0; | |
600 | } | |
e59f8796 | 601 | } else { |
19b53289 | 602 | pr_err("Hotkey device not present, aborting\n"); |
e59f8796 EC |
603 | return -EINVAL; |
604 | } | |
605 | return 0; | |
606 | } | |
607 | ||
64b86b65 | 608 | static int notify_brn(void) |
a5fa429b | 609 | { |
64b86b65 | 610 | /* returns the *previous* brightness, or -1 */ |
a5fa429b | 611 | struct backlight_device *bd = eeepc_backlight_device; |
64b86b65 DS |
612 | if (bd) { |
613 | int old = bd->props.brightness; | |
7695fb04 | 614 | bd->props.brightness = read_brightness(bd); |
64b86b65 DS |
615 | return old; |
616 | } | |
617 | return -1; | |
a5fa429b CC |
618 | } |
619 | ||
2b121bc2 CC |
620 | static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, |
621 | u8 *value) | |
622 | { | |
623 | int val = get_acpi(CM_ASL_WLAN); | |
624 | ||
625 | if (val == 1 || val == 0) | |
626 | *value = val; | |
627 | else | |
628 | return -EINVAL; | |
629 | ||
630 | return 0; | |
631 | } | |
632 | ||
96e9cfeb | 633 | static void eeepc_rfkill_hotplug(void) |
5740294c MG |
634 | { |
635 | struct pci_dev *dev; | |
636 | struct pci_bus *bus = pci_find_bus(0, 1); | |
19d337df | 637 | bool blocked; |
5740294c | 638 | |
5740294c | 639 | if (!bus) { |
19b53289 | 640 | pr_warning("Unable to find PCI bus 1?\n"); |
5740294c MG |
641 | return; |
642 | } | |
643 | ||
19d337df JB |
644 | blocked = eeepc_wlan_rfkill_blocked(); |
645 | if (!blocked) { | |
5740294c MG |
646 | dev = pci_get_slot(bus, 0); |
647 | if (dev) { | |
648 | /* Device already present */ | |
649 | pci_dev_put(dev); | |
650 | return; | |
651 | } | |
652 | dev = pci_scan_single_device(bus, 0); | |
653 | if (dev) { | |
654 | pci_bus_assign_resources(bus); | |
655 | if (pci_bus_add_device(dev)) | |
19b53289 | 656 | pr_err("Unable to hotplug wifi\n"); |
5740294c MG |
657 | } |
658 | } else { | |
659 | dev = pci_get_slot(bus, 0); | |
660 | if (dev) { | |
661 | pci_remove_bus_device(dev); | |
662 | pci_dev_put(dev); | |
663 | } | |
664 | } | |
978605c4 | 665 | |
19d337df | 666 | rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill, blocked); |
5740294c MG |
667 | } |
668 | ||
96e9cfeb AJ |
669 | static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) |
670 | { | |
671 | if (event != ACPI_NOTIFY_BUS_CHECK) | |
672 | return; | |
673 | ||
674 | eeepc_rfkill_hotplug(); | |
675 | } | |
676 | ||
d9b9bd7b | 677 | static void eeepc_hotk_notify(struct acpi_device *device, u32 event) |
e59f8796 | 678 | { |
a195dcdc | 679 | static struct key_entry *key; |
7950b71c | 680 | u16 count; |
64b86b65 | 681 | int brn = -ENODEV; |
7950b71c | 682 | |
e59f8796 EC |
683 | if (!ehotk) |
684 | return; | |
d9b9bd7b BH |
685 | if (event > ACPI_MAX_SYS_NOTIFY) |
686 | return; | |
a5fa429b | 687 | if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) |
64b86b65 | 688 | brn = notify_brn(); |
7950b71c CC |
689 | count = ehotk->event_count[event % 128]++; |
690 | acpi_bus_generate_proc_event(ehotk->device, event, count); | |
2b25c9f0 CC |
691 | acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class, |
692 | dev_name(&ehotk->device->dev), event, | |
7950b71c | 693 | count); |
a195dcdc | 694 | if (ehotk->inputdev) { |
64b86b65 DS |
695 | if (brn != -ENODEV) { |
696 | /* brightness-change events need special | |
697 | * handling for conversion to key events | |
698 | */ | |
699 | if (brn < 0) | |
700 | brn = event; | |
701 | else | |
702 | brn += NOTIFY_BRN_MIN; | |
703 | if (event < brn) | |
704 | event = NOTIFY_BRN_MIN; /* brightness down */ | |
705 | else if (event > brn) | |
706 | event = NOTIFY_BRN_MIN + 2; /* ... up */ | |
707 | else | |
708 | event = NOTIFY_BRN_MIN + 1; /* ... unchanged */ | |
709 | } | |
a195dcdc MG |
710 | key = eepc_get_entry_by_scancode(event); |
711 | if (key) { | |
712 | switch (key->type) { | |
713 | case KE_KEY: | |
714 | input_report_key(ehotk->inputdev, key->keycode, | |
715 | 1); | |
716 | input_sync(ehotk->inputdev); | |
717 | input_report_key(ehotk->inputdev, key->keycode, | |
718 | 0); | |
719 | input_sync(ehotk->inputdev); | |
720 | break; | |
721 | } | |
722 | } | |
723 | } | |
e59f8796 EC |
724 | } |
725 | ||
5740294c MG |
726 | static int eeepc_register_rfkill_notifier(char *node) |
727 | { | |
728 | acpi_status status = AE_OK; | |
729 | acpi_handle handle; | |
730 | ||
731 | status = acpi_get_handle(NULL, node, &handle); | |
732 | ||
733 | if (ACPI_SUCCESS(status)) { | |
734 | status = acpi_install_notify_handler(handle, | |
735 | ACPI_SYSTEM_NOTIFY, | |
736 | eeepc_rfkill_notify, | |
737 | NULL); | |
738 | if (ACPI_FAILURE(status)) | |
19b53289 | 739 | pr_warning("Failed to register notify on %s\n", node); |
5740294c MG |
740 | } else |
741 | return -ENODEV; | |
742 | ||
743 | return 0; | |
744 | } | |
745 | ||
746 | static void eeepc_unregister_rfkill_notifier(char *node) | |
747 | { | |
748 | acpi_status status = AE_OK; | |
749 | acpi_handle handle; | |
750 | ||
751 | status = acpi_get_handle(NULL, node, &handle); | |
752 | ||
753 | if (ACPI_SUCCESS(status)) { | |
754 | status = acpi_remove_notify_handler(handle, | |
755 | ACPI_SYSTEM_NOTIFY, | |
756 | eeepc_rfkill_notify); | |
757 | if (ACPI_FAILURE(status)) | |
19b53289 | 758 | pr_err("Error removing rfkill notify handler %s\n", |
5740294c MG |
759 | node); |
760 | } | |
761 | } | |
762 | ||
2b121bc2 CC |
763 | static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot) |
764 | { | |
765 | kfree(hotplug_slot->info); | |
766 | kfree(hotplug_slot); | |
767 | } | |
768 | ||
769 | static int eeepc_setup_pci_hotplug(void) | |
770 | { | |
771 | int ret = -ENOMEM; | |
772 | struct pci_bus *bus = pci_find_bus(0, 1); | |
773 | ||
774 | if (!bus) { | |
19b53289 | 775 | pr_err("Unable to find wifi PCI bus\n"); |
2b121bc2 CC |
776 | return -ENODEV; |
777 | } | |
778 | ||
779 | ehotk->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); | |
780 | if (!ehotk->hotplug_slot) | |
781 | goto error_slot; | |
782 | ||
783 | ehotk->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), | |
784 | GFP_KERNEL); | |
785 | if (!ehotk->hotplug_slot->info) | |
786 | goto error_info; | |
787 | ||
788 | ehotk->hotplug_slot->private = ehotk; | |
789 | ehotk->hotplug_slot->release = &eeepc_cleanup_pci_hotplug; | |
790 | ehotk->hotplug_slot->ops = &eeepc_hotplug_slot_ops; | |
791 | eeepc_get_adapter_status(ehotk->hotplug_slot, | |
792 | &ehotk->hotplug_slot->info->adapter_status); | |
793 | ||
794 | ret = pci_hp_register(ehotk->hotplug_slot, bus, 0, "eeepc-wifi"); | |
795 | if (ret) { | |
19b53289 | 796 | pr_err("Unable to register hotplug slot - %d\n", ret); |
2b121bc2 CC |
797 | goto error_register; |
798 | } | |
799 | ||
800 | return 0; | |
801 | ||
802 | error_register: | |
803 | kfree(ehotk->hotplug_slot->info); | |
804 | error_info: | |
805 | kfree(ehotk->hotplug_slot); | |
806 | ehotk->hotplug_slot = NULL; | |
807 | error_slot: | |
808 | return ret; | |
809 | } | |
810 | ||
e59f8796 EC |
811 | static int eeepc_hotk_add(struct acpi_device *device) |
812 | { | |
e59f8796 EC |
813 | int result; |
814 | ||
815 | if (!device) | |
816 | return -EINVAL; | |
19b53289 | 817 | pr_notice(EEEPC_HOTK_NAME "\n"); |
e59f8796 EC |
818 | ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); |
819 | if (!ehotk) | |
820 | return -ENOMEM; | |
821 | ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; | |
822 | ehotk->handle = device->handle; | |
823 | strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); | |
824 | strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); | |
db89b4f0 | 825 | device->driver_data = ehotk; |
e59f8796 EC |
826 | ehotk->device = device; |
827 | result = eeepc_hotk_check(); | |
828 | if (result) | |
c9ddf8fe | 829 | goto ehotk_fail; |
a195dcdc | 830 | |
fbc97e4c AJ |
831 | eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); |
832 | eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); | |
833 | ||
a195dcdc | 834 | if (get_acpi(CM_ASL_WLAN) != -1) { |
19d337df JB |
835 | ehotk->eeepc_wlan_rfkill = rfkill_alloc("eeepc-wlan", |
836 | &device->dev, | |
837 | RFKILL_TYPE_WLAN, | |
838 | &eeepc_rfkill_ops, | |
839 | (void *)CM_ASL_WLAN); | |
a195dcdc MG |
840 | |
841 | if (!ehotk->eeepc_wlan_rfkill) | |
c9ddf8fe | 842 | goto wlan_fail; |
a195dcdc | 843 | |
06d5caf4 AJ |
844 | rfkill_init_sw_state(ehotk->eeepc_wlan_rfkill, |
845 | get_acpi(CM_ASL_WLAN) != 1); | |
c9ddf8fe MG |
846 | result = rfkill_register(ehotk->eeepc_wlan_rfkill); |
847 | if (result) | |
848 | goto wlan_fail; | |
a195dcdc MG |
849 | } |
850 | ||
851 | if (get_acpi(CM_ASL_BLUETOOTH) != -1) { | |
852 | ehotk->eeepc_bluetooth_rfkill = | |
19d337df JB |
853 | rfkill_alloc("eeepc-bluetooth", |
854 | &device->dev, | |
855 | RFKILL_TYPE_BLUETOOTH, | |
856 | &eeepc_rfkill_ops, | |
857 | (void *)CM_ASL_BLUETOOTH); | |
a195dcdc MG |
858 | |
859 | if (!ehotk->eeepc_bluetooth_rfkill) | |
c9ddf8fe | 860 | goto bluetooth_fail; |
a195dcdc | 861 | |
06d5caf4 AJ |
862 | rfkill_init_sw_state(ehotk->eeepc_bluetooth_rfkill, |
863 | get_acpi(CM_ASL_BLUETOOTH) != 1); | |
c9ddf8fe MG |
864 | result = rfkill_register(ehotk->eeepc_bluetooth_rfkill); |
865 | if (result) | |
866 | goto bluetooth_fail; | |
e59f8796 | 867 | } |
5740294c | 868 | |
2b121bc2 CC |
869 | result = eeepc_setup_pci_hotplug(); |
870 | /* | |
871 | * If we get -EBUSY then something else is handling the PCI hotplug - | |
872 | * don't fail in this case | |
873 | */ | |
874 | if (result == -EBUSY) | |
875 | return 0; | |
876 | else if (result) | |
877 | goto pci_fail; | |
878 | ||
c9ddf8fe MG |
879 | return 0; |
880 | ||
2b121bc2 CC |
881 | pci_fail: |
882 | if (ehotk->eeepc_bluetooth_rfkill) | |
883 | rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); | |
c9ddf8fe | 884 | bluetooth_fail: |
19d337df | 885 | rfkill_destroy(ehotk->eeepc_bluetooth_rfkill); |
c9ddf8fe | 886 | rfkill_unregister(ehotk->eeepc_wlan_rfkill); |
c9ddf8fe | 887 | wlan_fail: |
19d337df | 888 | rfkill_destroy(ehotk->eeepc_wlan_rfkill); |
bd32005e CC |
889 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); |
890 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); | |
c9ddf8fe MG |
891 | ehotk_fail: |
892 | kfree(ehotk); | |
893 | ehotk = NULL; | |
894 | ||
e59f8796 EC |
895 | return result; |
896 | } | |
897 | ||
898 | static int eeepc_hotk_remove(struct acpi_device *device, int type) | |
899 | { | |
e59f8796 EC |
900 | if (!device || !acpi_driver_data(device)) |
901 | return -EINVAL; | |
5740294c MG |
902 | |
903 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); | |
904 | eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); | |
2b121bc2 CC |
905 | if (ehotk->hotplug_slot) |
906 | pci_hp_deregister(ehotk->hotplug_slot); | |
5740294c | 907 | |
e59f8796 EC |
908 | kfree(ehotk); |
909 | return 0; | |
910 | } | |
911 | ||
96e9cfeb AJ |
912 | static int eeepc_hotk_resume(struct acpi_device *device) |
913 | { | |
914 | if (ehotk->eeepc_wlan_rfkill) { | |
915 | bool wlan; | |
916 | ||
917 | /* Workaround - it seems that _PTS disables the wireless | |
918 | without notification or changing the value read by WLAN. | |
919 | Normally this is fine because the correct value is restored | |
920 | from the non-volatile storage on resume, but we need to do | |
921 | it ourself if case suspend is aborted, or we lose wireless. | |
922 | */ | |
923 | wlan = get_acpi(CM_ASL_WLAN); | |
924 | set_acpi(CM_ASL_WLAN, wlan); | |
925 | ||
926 | rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill, | |
927 | wlan != 1); | |
928 | ||
929 | eeepc_rfkill_hotplug(); | |
930 | } | |
931 | ||
932 | if (ehotk->eeepc_bluetooth_rfkill) | |
933 | rfkill_set_sw_state(ehotk->eeepc_bluetooth_rfkill, | |
934 | get_acpi(CM_ASL_BLUETOOTH) != 1); | |
935 | ||
936 | return 0; | |
937 | } | |
938 | ||
e1faa9da CC |
939 | /* |
940 | * Hwmon | |
941 | */ | |
942 | static int eeepc_get_fan_pwm(void) | |
943 | { | |
944 | int value = 0; | |
945 | ||
946 | read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value); | |
04dcd84b | 947 | value = value * 255 / 100; |
e1faa9da CC |
948 | return (value); |
949 | } | |
950 | ||
951 | static void eeepc_set_fan_pwm(int value) | |
952 | { | |
04dcd84b CC |
953 | value = SENSORS_LIMIT(value, 0, 255); |
954 | value = value * 100 / 255; | |
e1faa9da CC |
955 | ec_write(EEEPC_EC_SC02, value); |
956 | } | |
957 | ||
958 | static int eeepc_get_fan_rpm(void) | |
959 | { | |
960 | int high = 0; | |
961 | int low = 0; | |
962 | ||
963 | read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high); | |
964 | read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low); | |
965 | return (high << 8 | low); | |
966 | } | |
967 | ||
968 | static int eeepc_get_fan_ctrl(void) | |
969 | { | |
970 | int value = 0; | |
971 | ||
972 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); | |
973 | return ((value & 0x02 ? 1 : 0)); | |
974 | } | |
975 | ||
976 | static void eeepc_set_fan_ctrl(int manual) | |
977 | { | |
978 | int value = 0; | |
979 | ||
980 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); | |
981 | if (manual) | |
982 | value |= 0x02; | |
983 | else | |
984 | value &= ~0x02; | |
985 | ec_write(EEEPC_EC_SFB3, value); | |
986 | } | |
987 | ||
988 | static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) | |
989 | { | |
990 | int rv, value; | |
991 | ||
992 | rv = parse_arg(buf, count, &value); | |
993 | if (rv > 0) | |
994 | set(value); | |
995 | return rv; | |
996 | } | |
997 | ||
998 | static ssize_t show_sys_hwmon(int (*get)(void), char *buf) | |
999 | { | |
1000 | return sprintf(buf, "%d\n", get()); | |
1001 | } | |
1002 | ||
1003 | #define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \ | |
1004 | static ssize_t show_##_name(struct device *dev, \ | |
1005 | struct device_attribute *attr, \ | |
1006 | char *buf) \ | |
1007 | { \ | |
1008 | return show_sys_hwmon(_set, buf); \ | |
1009 | } \ | |
1010 | static ssize_t store_##_name(struct device *dev, \ | |
1011 | struct device_attribute *attr, \ | |
1012 | const char *buf, size_t count) \ | |
1013 | { \ | |
1014 | return store_sys_hwmon(_get, buf, count); \ | |
1015 | } \ | |
1016 | static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0); | |
1017 | ||
1018 | EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL); | |
04dcd84b | 1019 | EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR, |
e1faa9da CC |
1020 | eeepc_get_fan_pwm, eeepc_set_fan_pwm); |
1021 | EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, | |
1022 | eeepc_get_fan_ctrl, eeepc_set_fan_ctrl); | |
1023 | ||
04dcd84b CC |
1024 | static ssize_t |
1025 | show_name(struct device *dev, struct device_attribute *attr, char *buf) | |
1026 | { | |
1027 | return sprintf(buf, "eeepc\n"); | |
1028 | } | |
1029 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); | |
1030 | ||
e1faa9da | 1031 | static struct attribute *hwmon_attributes[] = { |
04dcd84b | 1032 | &sensor_dev_attr_pwm1.dev_attr.attr, |
e1faa9da CC |
1033 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1034 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
04dcd84b | 1035 | &sensor_dev_attr_name.dev_attr.attr, |
e1faa9da CC |
1036 | NULL |
1037 | }; | |
1038 | ||
1039 | static struct attribute_group hwmon_attribute_group = { | |
1040 | .attrs = hwmon_attributes | |
1041 | }; | |
1042 | ||
e59f8796 EC |
1043 | /* |
1044 | * exit/init | |
1045 | */ | |
a5fa429b CC |
1046 | static void eeepc_backlight_exit(void) |
1047 | { | |
1048 | if (eeepc_backlight_device) | |
1049 | backlight_device_unregister(eeepc_backlight_device); | |
a9df80c5 CC |
1050 | eeepc_backlight_device = NULL; |
1051 | } | |
1052 | ||
1053 | static void eeepc_rfkill_exit(void) | |
1054 | { | |
a195dcdc MG |
1055 | if (ehotk->eeepc_wlan_rfkill) |
1056 | rfkill_unregister(ehotk->eeepc_wlan_rfkill); | |
1057 | if (ehotk->eeepc_bluetooth_rfkill) | |
1058 | rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); | |
a9df80c5 CC |
1059 | } |
1060 | ||
1061 | static void eeepc_input_exit(void) | |
1062 | { | |
1063 | if (ehotk->inputdev) | |
1064 | input_unregister_device(ehotk->inputdev); | |
a5fa429b CC |
1065 | } |
1066 | ||
e1faa9da CC |
1067 | static void eeepc_hwmon_exit(void) |
1068 | { | |
1069 | struct device *hwmon; | |
1070 | ||
1071 | hwmon = eeepc_hwmon_device; | |
1072 | if (!hwmon) | |
1073 | return ; | |
e1faa9da CC |
1074 | sysfs_remove_group(&hwmon->kobj, |
1075 | &hwmon_attribute_group); | |
f1441318 | 1076 | hwmon_device_unregister(hwmon); |
e1faa9da CC |
1077 | eeepc_hwmon_device = NULL; |
1078 | } | |
1079 | ||
e59f8796 EC |
1080 | static void __exit eeepc_laptop_exit(void) |
1081 | { | |
a5fa429b | 1082 | eeepc_backlight_exit(); |
a9df80c5 CC |
1083 | eeepc_rfkill_exit(); |
1084 | eeepc_input_exit(); | |
e1faa9da | 1085 | eeepc_hwmon_exit(); |
e59f8796 EC |
1086 | acpi_bus_unregister_driver(&eeepc_hotk_driver); |
1087 | sysfs_remove_group(&platform_device->dev.kobj, | |
1088 | &platform_attribute_group); | |
1089 | platform_device_unregister(platform_device); | |
1090 | platform_driver_unregister(&platform_driver); | |
1091 | } | |
1092 | ||
a5fa429b CC |
1093 | static int eeepc_backlight_init(struct device *dev) |
1094 | { | |
1095 | struct backlight_device *bd; | |
1096 | ||
1097 | bd = backlight_device_register(EEEPC_HOTK_FILE, dev, | |
1098 | NULL, &eeepcbl_ops); | |
1099 | if (IS_ERR(bd)) { | |
19b53289 | 1100 | pr_err("Could not register eeepc backlight device\n"); |
a5fa429b CC |
1101 | eeepc_backlight_device = NULL; |
1102 | return PTR_ERR(bd); | |
1103 | } | |
1104 | eeepc_backlight_device = bd; | |
1105 | bd->props.max_brightness = 15; | |
1106 | bd->props.brightness = read_brightness(NULL); | |
1107 | bd->props.power = FB_BLANK_UNBLANK; | |
1108 | backlight_update_status(bd); | |
1109 | return 0; | |
1110 | } | |
1111 | ||
e1faa9da CC |
1112 | static int eeepc_hwmon_init(struct device *dev) |
1113 | { | |
1114 | struct device *hwmon; | |
1115 | int result; | |
1116 | ||
1117 | hwmon = hwmon_device_register(dev); | |
1118 | if (IS_ERR(hwmon)) { | |
19b53289 | 1119 | pr_err("Could not register eeepc hwmon device\n"); |
e1faa9da CC |
1120 | eeepc_hwmon_device = NULL; |
1121 | return PTR_ERR(hwmon); | |
1122 | } | |
1123 | eeepc_hwmon_device = hwmon; | |
1124 | result = sysfs_create_group(&hwmon->kobj, | |
1125 | &hwmon_attribute_group); | |
1126 | if (result) | |
1127 | eeepc_hwmon_exit(); | |
1128 | return result; | |
1129 | } | |
1130 | ||
e59f8796 EC |
1131 | static int __init eeepc_laptop_init(void) |
1132 | { | |
1133 | struct device *dev; | |
1134 | int result; | |
1135 | ||
1136 | if (acpi_disabled) | |
1137 | return -ENODEV; | |
1138 | result = acpi_bus_register_driver(&eeepc_hotk_driver); | |
1139 | if (result < 0) | |
1140 | return result; | |
1141 | if (!ehotk) { | |
1142 | acpi_bus_unregister_driver(&eeepc_hotk_driver); | |
1143 | return -ENODEV; | |
1144 | } | |
1145 | dev = acpi_get_physical_device(ehotk->device->handle); | |
a2bf8c01 TR |
1146 | |
1147 | if (!acpi_video_backlight_support()) { | |
1148 | result = eeepc_backlight_init(dev); | |
1149 | if (result) | |
1150 | goto fail_backlight; | |
1151 | } else | |
19b53289 | 1152 | pr_info("Backlight controlled by ACPI video driver\n"); |
a2bf8c01 | 1153 | |
e1faa9da CC |
1154 | result = eeepc_hwmon_init(dev); |
1155 | if (result) | |
1156 | goto fail_hwmon; | |
cede2cb6 PE |
1157 | |
1158 | eeepc_enable_camera(); | |
1159 | ||
e59f8796 EC |
1160 | /* Register platform stuff */ |
1161 | result = platform_driver_register(&platform_driver); | |
1162 | if (result) | |
1163 | goto fail_platform_driver; | |
1164 | platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); | |
1165 | if (!platform_device) { | |
1166 | result = -ENOMEM; | |
1167 | goto fail_platform_device1; | |
1168 | } | |
1169 | result = platform_device_add(platform_device); | |
1170 | if (result) | |
1171 | goto fail_platform_device2; | |
1172 | result = sysfs_create_group(&platform_device->dev.kobj, | |
1173 | &platform_attribute_group); | |
1174 | if (result) | |
1175 | goto fail_sysfs; | |
1176 | return 0; | |
1177 | fail_sysfs: | |
1178 | platform_device_del(platform_device); | |
1179 | fail_platform_device2: | |
1180 | platform_device_put(platform_device); | |
1181 | fail_platform_device1: | |
1182 | platform_driver_unregister(&platform_driver); | |
1183 | fail_platform_driver: | |
e1faa9da CC |
1184 | eeepc_hwmon_exit(); |
1185 | fail_hwmon: | |
a5fa429b CC |
1186 | eeepc_backlight_exit(); |
1187 | fail_backlight: | |
a9df80c5 CC |
1188 | eeepc_input_exit(); |
1189 | eeepc_rfkill_exit(); | |
e59f8796 EC |
1190 | return result; |
1191 | } | |
1192 | ||
1193 | module_init(eeepc_laptop_init); | |
1194 | module_exit(eeepc_laptop_exit); |