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