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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 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/module.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/platform_device.h> | |
a5fa429b CC |
24 | #include <linux/backlight.h> |
25 | #include <linux/fb.h> | |
e1faa9da CC |
26 | #include <linux/hwmon.h> |
27 | #include <linux/hwmon-sysfs.h> | |
e59f8796 EC |
28 | #include <acpi/acpi_drivers.h> |
29 | #include <acpi/acpi_bus.h> | |
30 | #include <linux/uaccess.h> | |
a195dcdc MG |
31 | #include <linux/input.h> |
32 | #include <linux/rfkill.h> | |
e59f8796 EC |
33 | |
34 | #define EEEPC_LAPTOP_VERSION "0.1" | |
35 | ||
36 | #define EEEPC_HOTK_NAME "Eee PC Hotkey Driver" | |
37 | #define EEEPC_HOTK_FILE "eeepc" | |
38 | #define EEEPC_HOTK_CLASS "hotkey" | |
39 | #define EEEPC_HOTK_DEVICE_NAME "Hotkey" | |
40 | #define EEEPC_HOTK_HID "ASUS010" | |
41 | ||
42 | #define EEEPC_LOG EEEPC_HOTK_FILE ": " | |
43 | #define EEEPC_ERR KERN_ERR EEEPC_LOG | |
44 | #define EEEPC_WARNING KERN_WARNING EEEPC_LOG | |
45 | #define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG | |
46 | #define EEEPC_INFO KERN_INFO EEEPC_LOG | |
47 | ||
48 | /* | |
49 | * Definitions for Asus EeePC | |
50 | */ | |
51 | #define NOTIFY_WLAN_ON 0x10 | |
a5fa429b CC |
52 | #define NOTIFY_BRN_MIN 0x20 |
53 | #define NOTIFY_BRN_MAX 0x2f | |
e59f8796 EC |
54 | |
55 | enum { | |
56 | DISABLE_ASL_WLAN = 0x0001, | |
57 | DISABLE_ASL_BLUETOOTH = 0x0002, | |
58 | DISABLE_ASL_IRDA = 0x0004, | |
59 | DISABLE_ASL_CAMERA = 0x0008, | |
60 | DISABLE_ASL_TV = 0x0010, | |
61 | DISABLE_ASL_GPS = 0x0020, | |
62 | DISABLE_ASL_DISPLAYSWITCH = 0x0040, | |
63 | DISABLE_ASL_MODEM = 0x0080, | |
64 | DISABLE_ASL_CARDREADER = 0x0100 | |
65 | }; | |
66 | ||
67 | enum { | |
68 | CM_ASL_WLAN = 0, | |
69 | CM_ASL_BLUETOOTH, | |
70 | CM_ASL_IRDA, | |
71 | CM_ASL_1394, | |
72 | CM_ASL_CAMERA, | |
73 | CM_ASL_TV, | |
74 | CM_ASL_GPS, | |
75 | CM_ASL_DVDROM, | |
76 | CM_ASL_DISPLAYSWITCH, | |
77 | CM_ASL_PANELBRIGHT, | |
78 | CM_ASL_BIOSFLASH, | |
79 | CM_ASL_ACPIFLASH, | |
80 | CM_ASL_CPUFV, | |
81 | CM_ASL_CPUTEMPERATURE, | |
82 | CM_ASL_FANCPU, | |
83 | CM_ASL_FANCHASSIS, | |
84 | CM_ASL_USBPORT1, | |
85 | CM_ASL_USBPORT2, | |
86 | CM_ASL_USBPORT3, | |
87 | CM_ASL_MODEM, | |
88 | CM_ASL_CARDREADER, | |
89 | CM_ASL_LID | |
90 | }; | |
91 | ||
14109461 | 92 | static const char *cm_getv[] = { |
e59f8796 EC |
93 | "WLDG", NULL, NULL, NULL, |
94 | "CAMG", NULL, NULL, NULL, | |
95 | NULL, "PBLG", NULL, NULL, | |
96 | "CFVG", NULL, NULL, NULL, | |
97 | "USBG", NULL, NULL, "MODG", | |
98 | "CRDG", "LIDG" | |
99 | }; | |
100 | ||
14109461 | 101 | static const char *cm_setv[] = { |
e59f8796 EC |
102 | "WLDS", NULL, NULL, NULL, |
103 | "CAMS", NULL, NULL, NULL, | |
104 | "SDSP", "PBLS", "HDPS", NULL, | |
105 | "CFVS", NULL, NULL, NULL, | |
106 | "USBG", NULL, NULL, "MODS", | |
107 | "CRDS", NULL | |
108 | }; | |
109 | ||
e1faa9da CC |
110 | #define EEEPC_EC "\\_SB.PCI0.SBRG.EC0." |
111 | ||
112 | #define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */ | |
113 | #define EEEPC_EC_SC02 0x63 | |
114 | #define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */ | |
115 | #define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */ | |
116 | #define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */ | |
117 | #define EEEPC_EC_SFB3 0xD3 | |
118 | ||
e59f8796 EC |
119 | /* |
120 | * This is the main structure, we can use it to store useful information | |
121 | * about the hotk device | |
122 | */ | |
123 | struct eeepc_hotk { | |
124 | struct acpi_device *device; /* the device we are in */ | |
125 | acpi_handle handle; /* the handle of the hotk device */ | |
126 | u32 cm_supported; /* the control methods supported | |
127 | by this BIOS */ | |
128 | uint init_flag; /* Init flags */ | |
129 | u16 event_count[128]; /* count for each event */ | |
a195dcdc MG |
130 | struct input_dev *inputdev; |
131 | u16 *keycode_map; | |
132 | struct rfkill *eeepc_wlan_rfkill; | |
133 | struct rfkill *eeepc_bluetooth_rfkill; | |
e59f8796 EC |
134 | }; |
135 | ||
136 | /* The actual device the driver binds to */ | |
137 | static struct eeepc_hotk *ehotk; | |
138 | ||
139 | /* Platform device/driver */ | |
140 | static struct platform_driver platform_driver = { | |
141 | .driver = { | |
142 | .name = EEEPC_HOTK_FILE, | |
143 | .owner = THIS_MODULE, | |
144 | } | |
145 | }; | |
146 | ||
147 | static struct platform_device *platform_device; | |
148 | ||
a195dcdc MG |
149 | struct key_entry { |
150 | char type; | |
151 | u8 code; | |
152 | u16 keycode; | |
153 | }; | |
154 | ||
155 | enum { KE_KEY, KE_END }; | |
156 | ||
157 | static struct key_entry eeepc_keymap[] = { | |
158 | /* Sleep already handled via generic ACPI code */ | |
159 | {KE_KEY, 0x10, KEY_WLAN }, | |
160 | {KE_KEY, 0x12, KEY_PROG1 }, | |
161 | {KE_KEY, 0x13, KEY_MUTE }, | |
162 | {KE_KEY, 0x14, KEY_VOLUMEDOWN }, | |
163 | {KE_KEY, 0x15, KEY_VOLUMEUP }, | |
164 | {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE }, | |
165 | {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE }, | |
166 | {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE }, | |
167 | {KE_END, 0}, | |
168 | }; | |
169 | ||
e59f8796 EC |
170 | /* |
171 | * The hotkey driver declaration | |
172 | */ | |
173 | static int eeepc_hotk_add(struct acpi_device *device); | |
174 | static int eeepc_hotk_remove(struct acpi_device *device, int type); | |
175 | ||
176 | static const struct acpi_device_id eeepc_device_ids[] = { | |
177 | {EEEPC_HOTK_HID, 0}, | |
178 | {"", 0}, | |
179 | }; | |
180 | MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); | |
181 | ||
182 | static struct acpi_driver eeepc_hotk_driver = { | |
183 | .name = EEEPC_HOTK_NAME, | |
184 | .class = EEEPC_HOTK_CLASS, | |
185 | .ids = eeepc_device_ids, | |
186 | .ops = { | |
187 | .add = eeepc_hotk_add, | |
188 | .remove = eeepc_hotk_remove, | |
189 | }, | |
190 | }; | |
191 | ||
a5fa429b CC |
192 | /* The backlight device /sys/class/backlight */ |
193 | static struct backlight_device *eeepc_backlight_device; | |
194 | ||
e1faa9da CC |
195 | /* The hwmon device */ |
196 | static struct device *eeepc_hwmon_device; | |
197 | ||
a5fa429b CC |
198 | /* |
199 | * The backlight class declaration | |
200 | */ | |
201 | static int read_brightness(struct backlight_device *bd); | |
202 | static int update_bl_status(struct backlight_device *bd); | |
203 | static struct backlight_ops eeepcbl_ops = { | |
204 | .get_brightness = read_brightness, | |
205 | .update_status = update_bl_status, | |
206 | }; | |
207 | ||
e59f8796 EC |
208 | MODULE_AUTHOR("Corentin Chary, Eric Cooper"); |
209 | MODULE_DESCRIPTION(EEEPC_HOTK_NAME); | |
210 | MODULE_LICENSE("GPL"); | |
211 | ||
212 | /* | |
213 | * ACPI Helpers | |
214 | */ | |
215 | static int write_acpi_int(acpi_handle handle, const char *method, int val, | |
216 | struct acpi_buffer *output) | |
217 | { | |
218 | struct acpi_object_list params; | |
219 | union acpi_object in_obj; | |
220 | acpi_status status; | |
221 | ||
222 | params.count = 1; | |
223 | params.pointer = &in_obj; | |
224 | in_obj.type = ACPI_TYPE_INTEGER; | |
225 | in_obj.integer.value = val; | |
226 | ||
227 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); | |
228 | return (status == AE_OK ? 0 : -1); | |
229 | } | |
230 | ||
231 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) | |
232 | { | |
233 | acpi_status status; | |
27663c58 | 234 | unsigned long long result; |
e59f8796 EC |
235 | |
236 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); | |
237 | if (ACPI_FAILURE(status)) { | |
238 | *val = -1; | |
239 | return -1; | |
240 | } else { | |
241 | *val = result; | |
242 | return 0; | |
243 | } | |
244 | } | |
245 | ||
246 | static int set_acpi(int cm, int value) | |
247 | { | |
248 | if (ehotk->cm_supported & (0x1 << cm)) { | |
249 | const char *method = cm_setv[cm]; | |
250 | if (method == NULL) | |
251 | return -ENODEV; | |
252 | if (write_acpi_int(ehotk->handle, method, value, NULL)) | |
253 | printk(EEEPC_WARNING "Error writing %s\n", method); | |
254 | } | |
255 | return 0; | |
256 | } | |
257 | ||
258 | static int get_acpi(int cm) | |
259 | { | |
260 | int value = -1; | |
261 | if ((ehotk->cm_supported & (0x1 << cm))) { | |
262 | const char *method = cm_getv[cm]; | |
263 | if (method == NULL) | |
264 | return -ENODEV; | |
265 | if (read_acpi_int(ehotk->handle, method, &value)) | |
266 | printk(EEEPC_WARNING "Error reading %s\n", method); | |
267 | } | |
268 | return value; | |
269 | } | |
270 | ||
a5fa429b CC |
271 | /* |
272 | * Backlight | |
273 | */ | |
274 | static int read_brightness(struct backlight_device *bd) | |
275 | { | |
276 | return get_acpi(CM_ASL_PANELBRIGHT); | |
277 | } | |
278 | ||
279 | static int set_brightness(struct backlight_device *bd, int value) | |
280 | { | |
281 | value = max(0, min(15, value)); | |
282 | return set_acpi(CM_ASL_PANELBRIGHT, value); | |
283 | } | |
284 | ||
285 | static int update_bl_status(struct backlight_device *bd) | |
286 | { | |
287 | return set_brightness(bd, bd->props.brightness); | |
288 | } | |
289 | ||
a195dcdc MG |
290 | /* |
291 | * Rfkill helpers | |
292 | */ | |
293 | ||
294 | static int eeepc_wlan_rfkill_set(void *data, enum rfkill_state state) | |
295 | { | |
296 | if (state == RFKILL_STATE_SOFT_BLOCKED) | |
297 | return set_acpi(CM_ASL_WLAN, 0); | |
298 | else | |
299 | return set_acpi(CM_ASL_WLAN, 1); | |
300 | } | |
301 | ||
302 | static int eeepc_wlan_rfkill_state(void *data, enum rfkill_state *state) | |
303 | { | |
304 | if (get_acpi(CM_ASL_WLAN) == 1) | |
305 | *state = RFKILL_STATE_UNBLOCKED; | |
306 | else | |
307 | *state = RFKILL_STATE_SOFT_BLOCKED; | |
308 | return 0; | |
309 | } | |
310 | ||
311 | static int eeepc_bluetooth_rfkill_set(void *data, enum rfkill_state state) | |
312 | { | |
313 | if (state == RFKILL_STATE_SOFT_BLOCKED) | |
314 | return set_acpi(CM_ASL_BLUETOOTH, 0); | |
315 | else | |
316 | return set_acpi(CM_ASL_BLUETOOTH, 1); | |
317 | } | |
318 | ||
319 | static int eeepc_bluetooth_rfkill_state(void *data, enum rfkill_state *state) | |
320 | { | |
321 | if (get_acpi(CM_ASL_BLUETOOTH) == 1) | |
322 | *state = RFKILL_STATE_UNBLOCKED; | |
323 | else | |
324 | *state = RFKILL_STATE_SOFT_BLOCKED; | |
325 | return 0; | |
326 | } | |
327 | ||
e59f8796 EC |
328 | /* |
329 | * Sys helpers | |
330 | */ | |
331 | static int parse_arg(const char *buf, unsigned long count, int *val) | |
332 | { | |
333 | if (!count) | |
334 | return 0; | |
335 | if (sscanf(buf, "%i", val) != 1) | |
336 | return -EINVAL; | |
337 | return count; | |
338 | } | |
339 | ||
340 | static ssize_t store_sys_acpi(int cm, const char *buf, size_t count) | |
341 | { | |
342 | int rv, value; | |
343 | ||
344 | rv = parse_arg(buf, count, &value); | |
345 | if (rv > 0) | |
346 | set_acpi(cm, value); | |
347 | return rv; | |
348 | } | |
349 | ||
350 | static ssize_t show_sys_acpi(int cm, char *buf) | |
351 | { | |
352 | return sprintf(buf, "%d\n", get_acpi(cm)); | |
353 | } | |
354 | ||
355 | #define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \ | |
356 | static ssize_t show_##_name(struct device *dev, \ | |
357 | struct device_attribute *attr, \ | |
358 | char *buf) \ | |
359 | { \ | |
360 | return show_sys_acpi(_cm, buf); \ | |
361 | } \ | |
362 | static ssize_t store_##_name(struct device *dev, \ | |
363 | struct device_attribute *attr, \ | |
364 | const char *buf, size_t count) \ | |
365 | { \ | |
366 | return store_sys_acpi(_cm, buf, count); \ | |
367 | } \ | |
368 | static struct device_attribute dev_attr_##_name = { \ | |
369 | .attr = { \ | |
370 | .name = __stringify(_name), \ | |
371 | .mode = 0644 }, \ | |
372 | .show = show_##_name, \ | |
373 | .store = store_##_name, \ | |
374 | } | |
375 | ||
376 | EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA); | |
377 | EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER); | |
378 | EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH); | |
e59f8796 EC |
379 | |
380 | static struct attribute *platform_attributes[] = { | |
381 | &dev_attr_camera.attr, | |
382 | &dev_attr_cardr.attr, | |
383 | &dev_attr_disp.attr, | |
e59f8796 EC |
384 | NULL |
385 | }; | |
386 | ||
387 | static struct attribute_group platform_attribute_group = { | |
388 | .attrs = platform_attributes | |
389 | }; | |
390 | ||
391 | /* | |
392 | * Hotkey functions | |
393 | */ | |
a195dcdc MG |
394 | static struct key_entry *eepc_get_entry_by_scancode(int code) |
395 | { | |
396 | struct key_entry *key; | |
397 | ||
398 | for (key = eeepc_keymap; key->type != KE_END; key++) | |
399 | if (code == key->code) | |
400 | return key; | |
401 | ||
402 | return NULL; | |
403 | } | |
404 | ||
405 | static struct key_entry *eepc_get_entry_by_keycode(int code) | |
406 | { | |
407 | struct key_entry *key; | |
408 | ||
409 | for (key = eeepc_keymap; key->type != KE_END; key++) | |
410 | if (code == key->keycode && key->type == KE_KEY) | |
411 | return key; | |
412 | ||
413 | return NULL; | |
414 | } | |
415 | ||
416 | static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode) | |
417 | { | |
418 | struct key_entry *key = eepc_get_entry_by_scancode(scancode); | |
419 | ||
420 | if (key && key->type == KE_KEY) { | |
421 | *keycode = key->keycode; | |
422 | return 0; | |
423 | } | |
424 | ||
425 | return -EINVAL; | |
426 | } | |
427 | ||
428 | static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) | |
429 | { | |
430 | struct key_entry *key; | |
431 | int old_keycode; | |
432 | ||
433 | if (keycode < 0 || keycode > KEY_MAX) | |
434 | return -EINVAL; | |
435 | ||
436 | key = eepc_get_entry_by_scancode(scancode); | |
437 | if (key && key->type == KE_KEY) { | |
438 | old_keycode = key->keycode; | |
439 | key->keycode = keycode; | |
440 | set_bit(keycode, dev->keybit); | |
441 | if (!eepc_get_entry_by_keycode(old_keycode)) | |
442 | clear_bit(old_keycode, dev->keybit); | |
443 | return 0; | |
444 | } | |
445 | ||
446 | return -EINVAL; | |
447 | } | |
448 | ||
e59f8796 EC |
449 | static int eeepc_hotk_check(void) |
450 | { | |
a195dcdc | 451 | const struct key_entry *key; |
e59f8796 EC |
452 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
453 | int result; | |
454 | ||
455 | result = acpi_bus_get_status(ehotk->device); | |
456 | if (result) | |
457 | return result; | |
458 | if (ehotk->device->status.present) { | |
459 | if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag, | |
460 | &buffer)) { | |
461 | printk(EEEPC_ERR "Hotkey initialization failed\n"); | |
462 | return -ENODEV; | |
463 | } else { | |
464 | printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n", | |
465 | ehotk->init_flag); | |
466 | } | |
467 | /* get control methods supported */ | |
468 | if (read_acpi_int(ehotk->handle, "CMSG" | |
469 | , &ehotk->cm_supported)) { | |
470 | printk(EEEPC_ERR | |
471 | "Get control methods supported failed\n"); | |
472 | return -ENODEV; | |
473 | } else { | |
474 | printk(EEEPC_INFO | |
475 | "Get control methods supported: 0x%x\n", | |
476 | ehotk->cm_supported); | |
477 | } | |
a195dcdc MG |
478 | ehotk->inputdev = input_allocate_device(); |
479 | if (!ehotk->inputdev) { | |
480 | printk(EEEPC_INFO "Unable to allocate input device\n"); | |
481 | return 0; | |
482 | } | |
483 | ehotk->inputdev->name = "Asus EeePC extra buttons"; | |
484 | ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0"; | |
485 | ehotk->inputdev->id.bustype = BUS_HOST; | |
486 | ehotk->inputdev->getkeycode = eeepc_getkeycode; | |
487 | ehotk->inputdev->setkeycode = eeepc_setkeycode; | |
488 | ||
489 | for (key = eeepc_keymap; key->type != KE_END; key++) { | |
490 | switch (key->type) { | |
491 | case KE_KEY: | |
492 | set_bit(EV_KEY, ehotk->inputdev->evbit); | |
493 | set_bit(key->keycode, ehotk->inputdev->keybit); | |
494 | break; | |
495 | } | |
496 | } | |
497 | result = input_register_device(ehotk->inputdev); | |
498 | if (result) { | |
499 | printk(EEEPC_INFO "Unable to register input device\n"); | |
500 | input_free_device(ehotk->inputdev); | |
501 | return 0; | |
502 | } | |
e59f8796 EC |
503 | } else { |
504 | printk(EEEPC_ERR "Hotkey device not present, aborting\n"); | |
505 | return -EINVAL; | |
506 | } | |
507 | return 0; | |
508 | } | |
509 | ||
a5fa429b CC |
510 | static void notify_brn(void) |
511 | { | |
512 | struct backlight_device *bd = eeepc_backlight_device; | |
513 | bd->props.brightness = read_brightness(bd); | |
514 | } | |
515 | ||
e59f8796 EC |
516 | static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data) |
517 | { | |
a195dcdc | 518 | static struct key_entry *key; |
e59f8796 EC |
519 | if (!ehotk) |
520 | return; | |
a5fa429b CC |
521 | if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) |
522 | notify_brn(); | |
e59f8796 EC |
523 | acpi_bus_generate_proc_event(ehotk->device, event, |
524 | ehotk->event_count[event % 128]++); | |
a195dcdc MG |
525 | if (ehotk->inputdev) { |
526 | key = eepc_get_entry_by_scancode(event); | |
527 | if (key) { | |
528 | switch (key->type) { | |
529 | case KE_KEY: | |
530 | input_report_key(ehotk->inputdev, key->keycode, | |
531 | 1); | |
532 | input_sync(ehotk->inputdev); | |
533 | input_report_key(ehotk->inputdev, key->keycode, | |
534 | 0); | |
535 | input_sync(ehotk->inputdev); | |
536 | break; | |
537 | } | |
538 | } | |
539 | } | |
e59f8796 EC |
540 | } |
541 | ||
542 | static int eeepc_hotk_add(struct acpi_device *device) | |
543 | { | |
544 | acpi_status status = AE_OK; | |
545 | int result; | |
546 | ||
547 | if (!device) | |
548 | return -EINVAL; | |
549 | printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n"); | |
550 | ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL); | |
551 | if (!ehotk) | |
552 | return -ENOMEM; | |
553 | ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; | |
554 | ehotk->handle = device->handle; | |
555 | strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME); | |
556 | strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS); | |
db89b4f0 | 557 | device->driver_data = ehotk; |
e59f8796 EC |
558 | ehotk->device = device; |
559 | result = eeepc_hotk_check(); | |
560 | if (result) | |
561 | goto end; | |
562 | status = acpi_install_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY, | |
563 | eeepc_hotk_notify, ehotk); | |
564 | if (ACPI_FAILURE(status)) | |
565 | printk(EEEPC_ERR "Error installing notify handler\n"); | |
a195dcdc MG |
566 | |
567 | if (get_acpi(CM_ASL_WLAN) != -1) { | |
568 | ehotk->eeepc_wlan_rfkill = rfkill_allocate(&device->dev, | |
569 | RFKILL_TYPE_WLAN); | |
570 | ||
571 | if (!ehotk->eeepc_wlan_rfkill) | |
572 | goto end; | |
573 | ||
574 | ehotk->eeepc_wlan_rfkill->name = "eeepc-wlan"; | |
575 | ehotk->eeepc_wlan_rfkill->toggle_radio = eeepc_wlan_rfkill_set; | |
576 | ehotk->eeepc_wlan_rfkill->get_state = eeepc_wlan_rfkill_state; | |
577 | if (get_acpi(CM_ASL_WLAN) == 1) | |
578 | ehotk->eeepc_wlan_rfkill->state = | |
579 | RFKILL_STATE_UNBLOCKED; | |
580 | else | |
581 | ehotk->eeepc_wlan_rfkill->state = | |
582 | RFKILL_STATE_SOFT_BLOCKED; | |
583 | rfkill_register(ehotk->eeepc_wlan_rfkill); | |
584 | } | |
585 | ||
586 | if (get_acpi(CM_ASL_BLUETOOTH) != -1) { | |
587 | ehotk->eeepc_bluetooth_rfkill = | |
588 | rfkill_allocate(&device->dev, RFKILL_TYPE_BLUETOOTH); | |
589 | ||
590 | if (!ehotk->eeepc_bluetooth_rfkill) | |
591 | goto end; | |
592 | ||
593 | ehotk->eeepc_bluetooth_rfkill->name = "eeepc-bluetooth"; | |
594 | ehotk->eeepc_bluetooth_rfkill->toggle_radio = | |
595 | eeepc_bluetooth_rfkill_set; | |
596 | ehotk->eeepc_bluetooth_rfkill->get_state = | |
597 | eeepc_bluetooth_rfkill_state; | |
598 | if (get_acpi(CM_ASL_BLUETOOTH) == 1) | |
599 | ehotk->eeepc_bluetooth_rfkill->state = | |
600 | RFKILL_STATE_UNBLOCKED; | |
601 | else | |
602 | ehotk->eeepc_bluetooth_rfkill->state = | |
603 | RFKILL_STATE_SOFT_BLOCKED; | |
604 | rfkill_register(ehotk->eeepc_bluetooth_rfkill); | |
605 | } | |
606 | ||
e59f8796 EC |
607 | end: |
608 | if (result) { | |
609 | kfree(ehotk); | |
610 | ehotk = NULL; | |
611 | } | |
612 | return result; | |
613 | } | |
614 | ||
615 | static int eeepc_hotk_remove(struct acpi_device *device, int type) | |
616 | { | |
617 | acpi_status status = 0; | |
618 | ||
619 | if (!device || !acpi_driver_data(device)) | |
620 | return -EINVAL; | |
621 | status = acpi_remove_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY, | |
622 | eeepc_hotk_notify); | |
623 | if (ACPI_FAILURE(status)) | |
624 | printk(EEEPC_ERR "Error removing notify handler\n"); | |
625 | kfree(ehotk); | |
626 | return 0; | |
627 | } | |
628 | ||
e1faa9da CC |
629 | /* |
630 | * Hwmon | |
631 | */ | |
632 | static int eeepc_get_fan_pwm(void) | |
633 | { | |
634 | int value = 0; | |
635 | ||
636 | read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value); | |
04dcd84b | 637 | value = value * 255 / 100; |
e1faa9da CC |
638 | return (value); |
639 | } | |
640 | ||
641 | static void eeepc_set_fan_pwm(int value) | |
642 | { | |
04dcd84b CC |
643 | value = SENSORS_LIMIT(value, 0, 255); |
644 | value = value * 100 / 255; | |
e1faa9da CC |
645 | ec_write(EEEPC_EC_SC02, value); |
646 | } | |
647 | ||
648 | static int eeepc_get_fan_rpm(void) | |
649 | { | |
650 | int high = 0; | |
651 | int low = 0; | |
652 | ||
653 | read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high); | |
654 | read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low); | |
655 | return (high << 8 | low); | |
656 | } | |
657 | ||
658 | static int eeepc_get_fan_ctrl(void) | |
659 | { | |
660 | int value = 0; | |
661 | ||
662 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); | |
663 | return ((value & 0x02 ? 1 : 0)); | |
664 | } | |
665 | ||
666 | static void eeepc_set_fan_ctrl(int manual) | |
667 | { | |
668 | int value = 0; | |
669 | ||
670 | read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value); | |
671 | if (manual) | |
672 | value |= 0x02; | |
673 | else | |
674 | value &= ~0x02; | |
675 | ec_write(EEEPC_EC_SFB3, value); | |
676 | } | |
677 | ||
678 | static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) | |
679 | { | |
680 | int rv, value; | |
681 | ||
682 | rv = parse_arg(buf, count, &value); | |
683 | if (rv > 0) | |
684 | set(value); | |
685 | return rv; | |
686 | } | |
687 | ||
688 | static ssize_t show_sys_hwmon(int (*get)(void), char *buf) | |
689 | { | |
690 | return sprintf(buf, "%d\n", get()); | |
691 | } | |
692 | ||
693 | #define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \ | |
694 | static ssize_t show_##_name(struct device *dev, \ | |
695 | struct device_attribute *attr, \ | |
696 | char *buf) \ | |
697 | { \ | |
698 | return show_sys_hwmon(_set, buf); \ | |
699 | } \ | |
700 | static ssize_t store_##_name(struct device *dev, \ | |
701 | struct device_attribute *attr, \ | |
702 | const char *buf, size_t count) \ | |
703 | { \ | |
704 | return store_sys_hwmon(_get, buf, count); \ | |
705 | } \ | |
706 | static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0); | |
707 | ||
708 | EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL); | |
04dcd84b | 709 | EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR, |
e1faa9da CC |
710 | eeepc_get_fan_pwm, eeepc_set_fan_pwm); |
711 | EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, | |
712 | eeepc_get_fan_ctrl, eeepc_set_fan_ctrl); | |
713 | ||
04dcd84b CC |
714 | static ssize_t |
715 | show_name(struct device *dev, struct device_attribute *attr, char *buf) | |
716 | { | |
717 | return sprintf(buf, "eeepc\n"); | |
718 | } | |
719 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); | |
720 | ||
e1faa9da | 721 | static struct attribute *hwmon_attributes[] = { |
04dcd84b | 722 | &sensor_dev_attr_pwm1.dev_attr.attr, |
e1faa9da CC |
723 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
724 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
04dcd84b | 725 | &sensor_dev_attr_name.dev_attr.attr, |
e1faa9da CC |
726 | NULL |
727 | }; | |
728 | ||
729 | static struct attribute_group hwmon_attribute_group = { | |
730 | .attrs = hwmon_attributes | |
731 | }; | |
732 | ||
e59f8796 EC |
733 | /* |
734 | * exit/init | |
735 | */ | |
a5fa429b CC |
736 | static void eeepc_backlight_exit(void) |
737 | { | |
738 | if (eeepc_backlight_device) | |
739 | backlight_device_unregister(eeepc_backlight_device); | |
a195dcdc MG |
740 | if (ehotk->inputdev) |
741 | input_unregister_device(ehotk->inputdev); | |
742 | if (ehotk->eeepc_wlan_rfkill) | |
743 | rfkill_unregister(ehotk->eeepc_wlan_rfkill); | |
744 | if (ehotk->eeepc_bluetooth_rfkill) | |
745 | rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); | |
a5fa429b CC |
746 | eeepc_backlight_device = NULL; |
747 | } | |
748 | ||
e1faa9da CC |
749 | static void eeepc_hwmon_exit(void) |
750 | { | |
751 | struct device *hwmon; | |
752 | ||
753 | hwmon = eeepc_hwmon_device; | |
754 | if (!hwmon) | |
755 | return ; | |
e1faa9da CC |
756 | sysfs_remove_group(&hwmon->kobj, |
757 | &hwmon_attribute_group); | |
f1441318 | 758 | hwmon_device_unregister(hwmon); |
e1faa9da CC |
759 | eeepc_hwmon_device = NULL; |
760 | } | |
761 | ||
e59f8796 EC |
762 | static void __exit eeepc_laptop_exit(void) |
763 | { | |
a5fa429b | 764 | eeepc_backlight_exit(); |
e1faa9da | 765 | eeepc_hwmon_exit(); |
e59f8796 EC |
766 | acpi_bus_unregister_driver(&eeepc_hotk_driver); |
767 | sysfs_remove_group(&platform_device->dev.kobj, | |
768 | &platform_attribute_group); | |
769 | platform_device_unregister(platform_device); | |
770 | platform_driver_unregister(&platform_driver); | |
771 | } | |
772 | ||
a5fa429b CC |
773 | static int eeepc_backlight_init(struct device *dev) |
774 | { | |
775 | struct backlight_device *bd; | |
776 | ||
777 | bd = backlight_device_register(EEEPC_HOTK_FILE, dev, | |
778 | NULL, &eeepcbl_ops); | |
779 | if (IS_ERR(bd)) { | |
780 | printk(EEEPC_ERR | |
781 | "Could not register eeepc backlight device\n"); | |
782 | eeepc_backlight_device = NULL; | |
783 | return PTR_ERR(bd); | |
784 | } | |
785 | eeepc_backlight_device = bd; | |
786 | bd->props.max_brightness = 15; | |
787 | bd->props.brightness = read_brightness(NULL); | |
788 | bd->props.power = FB_BLANK_UNBLANK; | |
789 | backlight_update_status(bd); | |
790 | return 0; | |
791 | } | |
792 | ||
e1faa9da CC |
793 | static int eeepc_hwmon_init(struct device *dev) |
794 | { | |
795 | struct device *hwmon; | |
796 | int result; | |
797 | ||
798 | hwmon = hwmon_device_register(dev); | |
799 | if (IS_ERR(hwmon)) { | |
800 | printk(EEEPC_ERR | |
801 | "Could not register eeepc hwmon device\n"); | |
802 | eeepc_hwmon_device = NULL; | |
803 | return PTR_ERR(hwmon); | |
804 | } | |
805 | eeepc_hwmon_device = hwmon; | |
806 | result = sysfs_create_group(&hwmon->kobj, | |
807 | &hwmon_attribute_group); | |
808 | if (result) | |
809 | eeepc_hwmon_exit(); | |
810 | return result; | |
811 | } | |
812 | ||
e59f8796 EC |
813 | static int __init eeepc_laptop_init(void) |
814 | { | |
815 | struct device *dev; | |
816 | int result; | |
817 | ||
818 | if (acpi_disabled) | |
819 | return -ENODEV; | |
820 | result = acpi_bus_register_driver(&eeepc_hotk_driver); | |
821 | if (result < 0) | |
822 | return result; | |
823 | if (!ehotk) { | |
824 | acpi_bus_unregister_driver(&eeepc_hotk_driver); | |
825 | return -ENODEV; | |
826 | } | |
827 | dev = acpi_get_physical_device(ehotk->device->handle); | |
a2bf8c01 TR |
828 | |
829 | if (!acpi_video_backlight_support()) { | |
830 | result = eeepc_backlight_init(dev); | |
831 | if (result) | |
832 | goto fail_backlight; | |
833 | } else | |
834 | printk(EEEPC_INFO "Backlight controlled by ACPI video " | |
835 | "driver\n"); | |
836 | ||
e1faa9da CC |
837 | result = eeepc_hwmon_init(dev); |
838 | if (result) | |
839 | goto fail_hwmon; | |
e59f8796 EC |
840 | /* Register platform stuff */ |
841 | result = platform_driver_register(&platform_driver); | |
842 | if (result) | |
843 | goto fail_platform_driver; | |
844 | platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1); | |
845 | if (!platform_device) { | |
846 | result = -ENOMEM; | |
847 | goto fail_platform_device1; | |
848 | } | |
849 | result = platform_device_add(platform_device); | |
850 | if (result) | |
851 | goto fail_platform_device2; | |
852 | result = sysfs_create_group(&platform_device->dev.kobj, | |
853 | &platform_attribute_group); | |
854 | if (result) | |
855 | goto fail_sysfs; | |
856 | return 0; | |
857 | fail_sysfs: | |
858 | platform_device_del(platform_device); | |
859 | fail_platform_device2: | |
860 | platform_device_put(platform_device); | |
861 | fail_platform_device1: | |
862 | platform_driver_unregister(&platform_driver); | |
863 | fail_platform_driver: | |
e1faa9da CC |
864 | eeepc_hwmon_exit(); |
865 | fail_hwmon: | |
a5fa429b CC |
866 | eeepc_backlight_exit(); |
867 | fail_backlight: | |
e59f8796 EC |
868 | return result; |
869 | } | |
870 | ||
871 | module_init(eeepc_laptop_init); | |
872 | module_exit(eeepc_laptop_exit); |