Commit | Line | Data |
---|---|---|
e59f8796 | 1 | /* |
a7624b63 | 2 | * eeepc-laptop.c - Asus Eee PC extras |
e59f8796 EC |
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> | |
5a0e3ad6 | 30 | #include <linux/slab.h> |
e59f8796 EC |
31 | #include <acpi/acpi_drivers.h> |
32 | #include <acpi/acpi_bus.h> | |
33 | #include <linux/uaccess.h> | |
a195dcdc | 34 | #include <linux/input.h> |
642e0447 | 35 | #include <linux/input/sparse-keymap.h> |
a195dcdc | 36 | #include <linux/rfkill.h> |
5740294c | 37 | #include <linux/pci.h> |
2b121bc2 | 38 | #include <linux/pci_hotplug.h> |
3c0eb510 | 39 | #include <linux/leds.h> |
da8ba01d | 40 | #include <linux/dmi.h> |
e59f8796 EC |
41 | |
42 | #define EEEPC_LAPTOP_VERSION "0.1" | |
a7624b63 AJ |
43 | #define EEEPC_LAPTOP_NAME "Eee PC Hotkey Driver" |
44 | #define EEEPC_LAPTOP_FILE "eeepc" | |
e59f8796 | 45 | |
a7624b63 AJ |
46 | #define EEEPC_ACPI_CLASS "hotkey" |
47 | #define EEEPC_ACPI_DEVICE_NAME "Hotkey" | |
48 | #define EEEPC_ACPI_HID "ASUS010" | |
e59f8796 | 49 | |
52bbe3c7 | 50 | MODULE_AUTHOR("Corentin Chary, Eric Cooper"); |
a7624b63 | 51 | MODULE_DESCRIPTION(EEEPC_LAPTOP_NAME); |
52bbe3c7 | 52 | MODULE_LICENSE("GPL"); |
e59f8796 | 53 | |
322a1356 CC |
54 | static bool hotplug_disabled; |
55 | ||
bfa47960 | 56 | module_param(hotplug_disabled, bool, 0444); |
322a1356 CC |
57 | MODULE_PARM_DESC(hotplug_disabled, |
58 | "Disable hotplug for wireless device. " | |
59 | "If your laptop need that, please report to " | |
60 | "acpi4asus-user@lists.sourceforge.net."); | |
61 | ||
e59f8796 EC |
62 | /* |
63 | * Definitions for Asus EeePC | |
64 | */ | |
a5fa429b CC |
65 | #define NOTIFY_BRN_MIN 0x20 |
66 | #define NOTIFY_BRN_MAX 0x2f | |
e59f8796 EC |
67 | |
68 | enum { | |
69 | DISABLE_ASL_WLAN = 0x0001, | |
70 | DISABLE_ASL_BLUETOOTH = 0x0002, | |
71 | DISABLE_ASL_IRDA = 0x0004, | |
72 | DISABLE_ASL_CAMERA = 0x0008, | |
73 | DISABLE_ASL_TV = 0x0010, | |
74 | DISABLE_ASL_GPS = 0x0020, | |
75 | DISABLE_ASL_DISPLAYSWITCH = 0x0040, | |
76 | DISABLE_ASL_MODEM = 0x0080, | |
b7b700d4 CC |
77 | DISABLE_ASL_CARDREADER = 0x0100, |
78 | DISABLE_ASL_3G = 0x0200, | |
79 | DISABLE_ASL_WIMAX = 0x0400, | |
80 | DISABLE_ASL_HWCF = 0x0800 | |
e59f8796 EC |
81 | }; |
82 | ||
83 | enum { | |
84 | CM_ASL_WLAN = 0, | |
85 | CM_ASL_BLUETOOTH, | |
86 | CM_ASL_IRDA, | |
87 | CM_ASL_1394, | |
88 | CM_ASL_CAMERA, | |
89 | CM_ASL_TV, | |
90 | CM_ASL_GPS, | |
91 | CM_ASL_DVDROM, | |
92 | CM_ASL_DISPLAYSWITCH, | |
93 | CM_ASL_PANELBRIGHT, | |
94 | CM_ASL_BIOSFLASH, | |
95 | CM_ASL_ACPIFLASH, | |
96 | CM_ASL_CPUFV, | |
97 | CM_ASL_CPUTEMPERATURE, | |
98 | CM_ASL_FANCPU, | |
99 | CM_ASL_FANCHASSIS, | |
100 | CM_ASL_USBPORT1, | |
101 | CM_ASL_USBPORT2, | |
102 | CM_ASL_USBPORT3, | |
103 | CM_ASL_MODEM, | |
104 | CM_ASL_CARDREADER, | |
b7b700d4 CC |
105 | CM_ASL_3G, |
106 | CM_ASL_WIMAX, | |
107 | CM_ASL_HWCF, | |
108 | CM_ASL_LID, | |
109 | CM_ASL_TYPE, | |
110 | CM_ASL_PANELPOWER, /*P901*/ | |
111 | CM_ASL_TPD | |
e59f8796 EC |
112 | }; |
113 | ||
14109461 | 114 | static const char *cm_getv[] = { |
3af9bfcb | 115 | "WLDG", "BTHG", NULL, NULL, |
e59f8796 EC |
116 | "CAMG", NULL, NULL, NULL, |
117 | NULL, "PBLG", NULL, NULL, | |
118 | "CFVG", NULL, NULL, NULL, | |
119 | "USBG", NULL, NULL, "MODG", | |
b7b700d4 CC |
120 | "CRDG", "M3GG", "WIMG", "HWCF", |
121 | "LIDG", "TYPE", "PBPG", "TPDG" | |
e59f8796 EC |
122 | }; |
123 | ||
14109461 | 124 | static const char *cm_setv[] = { |
3af9bfcb | 125 | "WLDS", "BTHS", NULL, NULL, |
e59f8796 EC |
126 | "CAMS", NULL, NULL, NULL, |
127 | "SDSP", "PBLS", "HDPS", NULL, | |
128 | "CFVS", NULL, NULL, NULL, | |
129 | "USBG", NULL, NULL, "MODS", | |
b7b700d4 CC |
130 | "CRDS", "M3GS", "WIMS", NULL, |
131 | NULL, NULL, "PBPS", "TPDS" | |
e59f8796 EC |
132 | }; |
133 | ||
854c7836 | 134 | static const struct key_entry eeepc_keymap[] = { |
642e0447 DT |
135 | { KE_KEY, 0x10, { KEY_WLAN } }, |
136 | { KE_KEY, 0x11, { KEY_WLAN } }, | |
137 | { KE_KEY, 0x12, { KEY_PROG1 } }, | |
138 | { KE_KEY, 0x13, { KEY_MUTE } }, | |
139 | { KE_KEY, 0x14, { KEY_VOLUMEDOWN } }, | |
140 | { KE_KEY, 0x15, { KEY_VOLUMEUP } }, | |
141 | { KE_KEY, 0x16, { KEY_DISPLAY_OFF } }, | |
142 | { KE_KEY, 0x1a, { KEY_COFFEE } }, | |
143 | { KE_KEY, 0x1b, { KEY_ZOOM } }, | |
144 | { KE_KEY, 0x1c, { KEY_PROG2 } }, | |
145 | { KE_KEY, 0x1d, { KEY_PROG3 } }, | |
146 | { KE_KEY, NOTIFY_BRN_MIN, { KEY_BRIGHTNESSDOWN } }, | |
147 | { KE_KEY, NOTIFY_BRN_MAX, { KEY_BRIGHTNESSUP } }, | |
148 | { KE_KEY, 0x30, { KEY_SWITCHVIDEOMODE } }, | |
149 | { KE_KEY, 0x31, { KEY_SWITCHVIDEOMODE } }, | |
150 | { KE_KEY, 0x32, { KEY_SWITCHVIDEOMODE } }, | |
151 | { KE_KEY, 0x37, { KEY_F13 } }, /* Disable Touchpad */ | |
152 | { KE_KEY, 0x38, { KEY_F14 } }, | |
153 | { KE_END, 0 }, | |
a195dcdc MG |
154 | }; |
155 | ||
e59f8796 | 156 | /* |
52bbe3c7 | 157 | * This is the main structure, we can use it to store useful information |
e59f8796 | 158 | */ |
a7624b63 | 159 | struct eeepc_laptop { |
854c7836 | 160 | acpi_handle handle; /* the handle of the acpi device */ |
52bbe3c7 AJ |
161 | u32 cm_supported; /* the control methods supported |
162 | by this BIOS */ | |
da8ba01d | 163 | bool cpufv_disabled; |
10ae4b56 | 164 | bool hotplug_disabled; |
52bbe3c7 | 165 | u16 event_count[128]; /* count for each event */ |
e59f8796 | 166 | |
854c7836 | 167 | struct platform_device *platform_device; |
71e687dc | 168 | struct acpi_device *device; /* the device we are in */ |
854c7836 AJ |
169 | struct device *hwmon_device; |
170 | struct backlight_device *backlight_device; | |
2b121bc2 | 171 | |
52bbe3c7 | 172 | struct input_dev *inputdev; |
2b121bc2 | 173 | |
52bbe3c7 AJ |
174 | struct rfkill *wlan_rfkill; |
175 | struct rfkill *bluetooth_rfkill; | |
176 | struct rfkill *wwan3g_rfkill; | |
177 | struct rfkill *wimax_rfkill; | |
a5fa429b | 178 | |
52bbe3c7 AJ |
179 | struct hotplug_slot *hotplug_slot; |
180 | struct mutex hotplug_lock; | |
e1faa9da | 181 | |
854c7836 AJ |
182 | struct led_classdev tpd_led; |
183 | int tpd_led_wk; | |
184 | struct workqueue_struct *led_workqueue; | |
185 | struct work_struct tpd_led_work; | |
a5fa429b CC |
186 | }; |
187 | ||
e59f8796 EC |
188 | /* |
189 | * ACPI Helpers | |
190 | */ | |
6b188a7b | 191 | static int write_acpi_int(acpi_handle handle, const char *method, int val) |
e59f8796 EC |
192 | { |
193 | struct acpi_object_list params; | |
194 | union acpi_object in_obj; | |
195 | acpi_status status; | |
196 | ||
197 | params.count = 1; | |
198 | params.pointer = &in_obj; | |
199 | in_obj.type = ACPI_TYPE_INTEGER; | |
200 | in_obj.integer.value = val; | |
201 | ||
6b188a7b | 202 | status = acpi_evaluate_object(handle, (char *)method, ¶ms, NULL); |
e59f8796 EC |
203 | return (status == AE_OK ? 0 : -1); |
204 | } | |
205 | ||
206 | static int read_acpi_int(acpi_handle handle, const char *method, int *val) | |
207 | { | |
208 | acpi_status status; | |
27663c58 | 209 | unsigned long long result; |
e59f8796 EC |
210 | |
211 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); | |
212 | if (ACPI_FAILURE(status)) { | |
213 | *val = -1; | |
214 | return -1; | |
215 | } else { | |
216 | *val = result; | |
217 | return 0; | |
218 | } | |
219 | } | |
220 | ||
854c7836 | 221 | static int set_acpi(struct eeepc_laptop *eeepc, int cm, int value) |
e59f8796 | 222 | { |
13f70029 | 223 | const char *method = cm_setv[cm]; |
e59f8796 | 224 | |
13f70029 AJ |
225 | if (method == NULL) |
226 | return -ENODEV; | |
a7624b63 | 227 | if ((eeepc->cm_supported & (0x1 << cm)) == 0) |
13f70029 | 228 | return -ENODEV; |
a5fa429b | 229 | |
a7624b63 | 230 | if (write_acpi_int(eeepc->handle, method, value)) |
13f70029 | 231 | pr_warning("Error writing %s\n", method); |
e59f8796 | 232 | return 0; |
a5fa429b CC |
233 | } |
234 | ||
854c7836 | 235 | static int get_acpi(struct eeepc_laptop *eeepc, int cm) |
a5fa429b | 236 | { |
13f70029 AJ |
237 | const char *method = cm_getv[cm]; |
238 | int value; | |
a5fa429b | 239 | |
13f70029 AJ |
240 | if (method == NULL) |
241 | return -ENODEV; | |
a7624b63 | 242 | if ((eeepc->cm_supported & (0x1 << cm)) == 0) |
13f70029 | 243 | return -ENODEV; |
a195dcdc | 244 | |
a7624b63 | 245 | if (read_acpi_int(eeepc->handle, method, &value)) |
13f70029 | 246 | pr_warning("Error reading %s\n", method); |
e59f8796 | 247 | return value; |
a195dcdc MG |
248 | } |
249 | ||
f90be874 CC |
250 | static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm, |
251 | acpi_handle *handle) | |
a195dcdc | 252 | { |
854c7836 AJ |
253 | const char *method = cm_setv[cm]; |
254 | acpi_status status; | |
a195dcdc | 255 | |
854c7836 AJ |
256 | if (method == NULL) |
257 | return -ENODEV; | |
258 | if ((eeepc->cm_supported & (0x1 << cm)) == 0) | |
259 | return -ENODEV; | |
a195dcdc | 260 | |
854c7836 | 261 | status = acpi_get_handle(eeepc->handle, (char *)method, |
f90be874 | 262 | handle); |
854c7836 AJ |
263 | if (status != AE_OK) { |
264 | pr_warning("Error finding %s\n", method); | |
265 | return -ENODEV; | |
266 | } | |
267 | return 0; | |
cede2cb6 PE |
268 | } |
269 | ||
854c7836 | 270 | |
e59f8796 EC |
271 | /* |
272 | * Sys helpers | |
273 | */ | |
274 | static int parse_arg(const char *buf, unsigned long count, int *val) | |
275 | { | |
276 | if (!count) | |
277 | return 0; | |
278 | if (sscanf(buf, "%i", val) != 1) | |
279 | return -EINVAL; | |
280 | return count; | |
281 | } | |
282 | ||
854c7836 AJ |
283 | static ssize_t store_sys_acpi(struct device *dev, int cm, |
284 | const char *buf, size_t count) | |
e59f8796 | 285 | { |
854c7836 | 286 | struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
e59f8796 EC |
287 | int rv, value; |
288 | ||
289 | rv = parse_arg(buf, count, &value); | |
290 | if (rv > 0) | |
854c7836 | 291 | value = set_acpi(eeepc, cm, value); |
f36509e7 | 292 | if (value < 0) |
6dff29b6 | 293 | return -EIO; |
e59f8796 EC |
294 | return rv; |
295 | } | |
296 | ||
854c7836 | 297 | static ssize_t show_sys_acpi(struct device *dev, int cm, char *buf) |
e59f8796 | 298 | { |
854c7836 AJ |
299 | struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
300 | int value = get_acpi(eeepc, cm); | |
f36509e7 CC |
301 | |
302 | if (value < 0) | |
6dff29b6 | 303 | return -EIO; |
f36509e7 | 304 | return sprintf(buf, "%d\n", value); |
e59f8796 EC |
305 | } |
306 | ||
6dff29b6 | 307 | #define EEEPC_CREATE_DEVICE_ATTR(_name, _mode, _cm) \ |
e59f8796 EC |
308 | static ssize_t show_##_name(struct device *dev, \ |
309 | struct device_attribute *attr, \ | |
310 | char *buf) \ | |
311 | { \ | |
854c7836 | 312 | return show_sys_acpi(dev, _cm, buf); \ |
e59f8796 EC |
313 | } \ |
314 | static ssize_t store_##_name(struct device *dev, \ | |
315 | struct device_attribute *attr, \ | |
316 | const char *buf, size_t count) \ | |
317 | { \ | |
854c7836 | 318 | return store_sys_acpi(dev, _cm, buf, count); \ |
e59f8796 EC |
319 | } \ |
320 | static struct device_attribute dev_attr_##_name = { \ | |
321 | .attr = { \ | |
322 | .name = __stringify(_name), \ | |
6dff29b6 | 323 | .mode = _mode }, \ |
e59f8796 EC |
324 | .show = show_##_name, \ |
325 | .store = store_##_name, \ | |
326 | } | |
327 | ||
6dff29b6 AJ |
328 | EEEPC_CREATE_DEVICE_ATTR(camera, 0644, CM_ASL_CAMERA); |
329 | EEEPC_CREATE_DEVICE_ATTR(cardr, 0644, CM_ASL_CARDREADER); | |
330 | EEEPC_CREATE_DEVICE_ATTR(disp, 0200, CM_ASL_DISPLAYSWITCH); | |
b31d0fde CC |
331 | |
332 | struct eeepc_cpufv { | |
333 | int num; | |
334 | int cur; | |
335 | }; | |
336 | ||
854c7836 | 337 | static int get_cpufv(struct eeepc_laptop *eeepc, struct eeepc_cpufv *c) |
b31d0fde | 338 | { |
854c7836 | 339 | c->cur = get_acpi(eeepc, CM_ASL_CPUFV); |
b31d0fde CC |
340 | c->num = (c->cur >> 8) & 0xff; |
341 | c->cur &= 0xff; | |
342 | if (c->cur < 0 || c->num <= 0 || c->num > 12) | |
343 | return -ENODEV; | |
344 | return 0; | |
345 | } | |
346 | ||
347 | static ssize_t show_available_cpufv(struct device *dev, | |
348 | struct device_attribute *attr, | |
349 | char *buf) | |
350 | { | |
854c7836 | 351 | struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
b31d0fde CC |
352 | struct eeepc_cpufv c; |
353 | int i; | |
354 | ssize_t len = 0; | |
355 | ||
854c7836 | 356 | if (get_cpufv(eeepc, &c)) |
b31d0fde CC |
357 | return -ENODEV; |
358 | for (i = 0; i < c.num; i++) | |
359 | len += sprintf(buf + len, "%d ", i); | |
360 | len += sprintf(buf + len, "\n"); | |
361 | return len; | |
362 | } | |
363 | ||
364 | static ssize_t show_cpufv(struct device *dev, | |
365 | struct device_attribute *attr, | |
366 | char *buf) | |
367 | { | |
854c7836 | 368 | struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
b31d0fde CC |
369 | struct eeepc_cpufv c; |
370 | ||
854c7836 | 371 | if (get_cpufv(eeepc, &c)) |
b31d0fde CC |
372 | return -ENODEV; |
373 | return sprintf(buf, "%#x\n", (c.num << 8) | c.cur); | |
374 | } | |
375 | ||
376 | static ssize_t store_cpufv(struct device *dev, | |
377 | struct device_attribute *attr, | |
378 | const char *buf, size_t count) | |
379 | { | |
854c7836 | 380 | struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
b31d0fde CC |
381 | struct eeepc_cpufv c; |
382 | int rv, value; | |
383 | ||
da8ba01d AJ |
384 | if (eeepc->cpufv_disabled) |
385 | return -EPERM; | |
854c7836 | 386 | if (get_cpufv(eeepc, &c)) |
b31d0fde CC |
387 | return -ENODEV; |
388 | rv = parse_arg(buf, count, &value); | |
389 | if (rv < 0) | |
390 | return rv; | |
391 | if (!rv || value < 0 || value >= c.num) | |
392 | return -EINVAL; | |
854c7836 | 393 | set_acpi(eeepc, CM_ASL_CPUFV, value); |
b31d0fde CC |
394 | return rv; |
395 | } | |
396 | ||
da8ba01d AJ |
397 | static ssize_t show_cpufv_disabled(struct device *dev, |
398 | struct device_attribute *attr, | |
399 | char *buf) | |
400 | { | |
401 | struct eeepc_laptop *eeepc = dev_get_drvdata(dev); | |
402 | ||
403 | return sprintf(buf, "%d\n", eeepc->cpufv_disabled); | |
404 | } | |
405 | ||
406 | static ssize_t store_cpufv_disabled(struct device *dev, | |
407 | struct device_attribute *attr, | |
408 | const char *buf, size_t count) | |
409 | { | |
410 | struct eeepc_laptop *eeepc = dev_get_drvdata(dev); | |
411 | int rv, value; | |
412 | ||
413 | rv = parse_arg(buf, count, &value); | |
414 | if (rv < 0) | |
415 | return rv; | |
416 | ||
417 | switch (value) { | |
418 | case 0: | |
419 | if (eeepc->cpufv_disabled) | |
420 | pr_warning("cpufv enabled (not officially supported " | |
421 | "on this model)\n"); | |
422 | eeepc->cpufv_disabled = false; | |
423 | return rv; | |
424 | case 1: | |
425 | return -EPERM; | |
426 | default: | |
427 | return -EINVAL; | |
428 | } | |
429 | } | |
430 | ||
431 | ||
b31d0fde CC |
432 | static struct device_attribute dev_attr_cpufv = { |
433 | .attr = { | |
434 | .name = "cpufv", | |
435 | .mode = 0644 }, | |
436 | .show = show_cpufv, | |
437 | .store = store_cpufv | |
438 | }; | |
439 | ||
440 | static struct device_attribute dev_attr_available_cpufv = { | |
441 | .attr = { | |
442 | .name = "available_cpufv", | |
443 | .mode = 0444 }, | |
444 | .show = show_available_cpufv | |
445 | }; | |
e59f8796 | 446 | |
da8ba01d AJ |
447 | static struct device_attribute dev_attr_cpufv_disabled = { |
448 | .attr = { | |
449 | .name = "cpufv_disabled", | |
450 | .mode = 0644 }, | |
451 | .show = show_cpufv_disabled, | |
452 | .store = store_cpufv_disabled | |
453 | }; | |
454 | ||
455 | ||
e59f8796 EC |
456 | static struct attribute *platform_attributes[] = { |
457 | &dev_attr_camera.attr, | |
458 | &dev_attr_cardr.attr, | |
459 | &dev_attr_disp.attr, | |
158ca1d7 | 460 | &dev_attr_cpufv.attr, |
b31d0fde | 461 | &dev_attr_available_cpufv.attr, |
da8ba01d | 462 | &dev_attr_cpufv_disabled.attr, |
e59f8796 EC |
463 | NULL |
464 | }; | |
465 | ||
466 | static struct attribute_group platform_attribute_group = { | |
467 | .attrs = platform_attributes | |
468 | }; | |
469 | ||
854c7836 | 470 | static int eeepc_platform_init(struct eeepc_laptop *eeepc) |
a195dcdc | 471 | { |
9db106be | 472 | int result; |
a195dcdc | 473 | |
854c7836 AJ |
474 | eeepc->platform_device = platform_device_alloc(EEEPC_LAPTOP_FILE, -1); |
475 | if (!eeepc->platform_device) | |
9db106be | 476 | return -ENOMEM; |
854c7836 | 477 | platform_set_drvdata(eeepc->platform_device, eeepc); |
a195dcdc | 478 | |
854c7836 | 479 | result = platform_device_add(eeepc->platform_device); |
9db106be AJ |
480 | if (result) |
481 | goto fail_platform_device; | |
a195dcdc | 482 | |
854c7836 | 483 | result = sysfs_create_group(&eeepc->platform_device->dev.kobj, |
9db106be AJ |
484 | &platform_attribute_group); |
485 | if (result) | |
486 | goto fail_sysfs; | |
487 | return 0; | |
a195dcdc | 488 | |
9db106be | 489 | fail_sysfs: |
854c7836 | 490 | platform_device_del(eeepc->platform_device); |
9db106be | 491 | fail_platform_device: |
854c7836 | 492 | platform_device_put(eeepc->platform_device); |
9db106be | 493 | return result; |
a195dcdc MG |
494 | } |
495 | ||
854c7836 | 496 | static void eeepc_platform_exit(struct eeepc_laptop *eeepc) |
a195dcdc | 497 | { |
854c7836 | 498 | sysfs_remove_group(&eeepc->platform_device->dev.kobj, |
9db106be | 499 | &platform_attribute_group); |
854c7836 | 500 | platform_device_unregister(eeepc->platform_device); |
9db106be | 501 | } |
a195dcdc | 502 | |
3c0eb510 CC |
503 | /* |
504 | * LEDs | |
505 | */ | |
506 | /* | |
507 | * These functions actually update the LED's, and are called from a | |
508 | * workqueue. By doing this as separate work rather than when the LED | |
509 | * subsystem asks, we avoid messing with the Asus ACPI stuff during a | |
510 | * potentially bad time, such as a timer interrupt. | |
511 | */ | |
854c7836 AJ |
512 | static void tpd_led_update(struct work_struct *work) |
513 | { | |
514 | struct eeepc_laptop *eeepc; | |
a195dcdc | 515 | |
854c7836 | 516 | eeepc = container_of(work, struct eeepc_laptop, tpd_led_work); |
3c0eb510 | 517 | |
854c7836 | 518 | set_acpi(eeepc, CM_ASL_TPD, eeepc->tpd_led_wk); |
a195dcdc MG |
519 | } |
520 | ||
3c0eb510 CC |
521 | static void tpd_led_set(struct led_classdev *led_cdev, |
522 | enum led_brightness value) | |
a195dcdc | 523 | { |
854c7836 | 524 | struct eeepc_laptop *eeepc; |
a195dcdc | 525 | |
854c7836 | 526 | eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led); |
a195dcdc | 527 | |
854c7836 AJ |
528 | eeepc->tpd_led_wk = (value > 0) ? 1 : 0; |
529 | queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work); | |
a195dcdc MG |
530 | } |
531 | ||
62a75d83 CC |
532 | static enum led_brightness tpd_led_get(struct led_classdev *led_cdev) |
533 | { | |
534 | struct eeepc_laptop *eeepc; | |
535 | ||
536 | eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led); | |
537 | ||
538 | return get_acpi(eeepc, CM_ASL_TPD); | |
539 | } | |
540 | ||
854c7836 | 541 | static int eeepc_led_init(struct eeepc_laptop *eeepc) |
dbfa3ba9 | 542 | { |
52bbe3c7 | 543 | int rv; |
dbfa3ba9 | 544 | |
854c7836 | 545 | if (get_acpi(eeepc, CM_ASL_TPD) == -ENODEV) |
52bbe3c7 | 546 | return 0; |
dbfa3ba9 | 547 | |
854c7836 AJ |
548 | eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue"); |
549 | if (!eeepc->led_workqueue) | |
52bbe3c7 | 550 | return -ENOMEM; |
854c7836 | 551 | INIT_WORK(&eeepc->tpd_led_work, tpd_led_update); |
dbfa3ba9 | 552 | |
854c7836 AJ |
553 | eeepc->tpd_led.name = "eeepc::touchpad"; |
554 | eeepc->tpd_led.brightness_set = tpd_led_set; | |
62a75d83 CC |
555 | if (get_acpi(eeepc, CM_ASL_TPD) >= 0) /* if method is available */ |
556 | eeepc->tpd_led.brightness_get = tpd_led_get; | |
854c7836 | 557 | eeepc->tpd_led.max_brightness = 1; |
e59f8796 | 558 | |
854c7836 AJ |
559 | rv = led_classdev_register(&eeepc->platform_device->dev, |
560 | &eeepc->tpd_led); | |
52bbe3c7 | 561 | if (rv) { |
854c7836 | 562 | destroy_workqueue(eeepc->led_workqueue); |
52bbe3c7 | 563 | return rv; |
e59f8796 | 564 | } |
a195dcdc | 565 | |
e59f8796 EC |
566 | return 0; |
567 | } | |
568 | ||
854c7836 | 569 | static void eeepc_led_exit(struct eeepc_laptop *eeepc) |
a5fa429b | 570 | { |
854c7836 AJ |
571 | if (eeepc->tpd_led.dev) |
572 | led_classdev_unregister(&eeepc->tpd_led); | |
573 | if (eeepc->led_workqueue) | |
574 | destroy_workqueue(eeepc->led_workqueue); | |
a5fa429b CC |
575 | } |
576 | ||
2b121bc2 | 577 | |
52bbe3c7 AJ |
578 | /* |
579 | * PCI hotplug (for wlan rfkill) | |
580 | */ | |
854c7836 | 581 | static bool eeepc_wlan_rfkill_blocked(struct eeepc_laptop *eeepc) |
52bbe3c7 | 582 | { |
854c7836 | 583 | if (get_acpi(eeepc, CM_ASL_WLAN) == 1) |
52bbe3c7 AJ |
584 | return false; |
585 | return true; | |
2b121bc2 CC |
586 | } |
587 | ||
854c7836 | 588 | static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc) |
5740294c MG |
589 | { |
590 | struct pci_dev *dev; | |
6d41839e | 591 | struct pci_bus *bus; |
854c7836 | 592 | bool blocked = eeepc_wlan_rfkill_blocked(eeepc); |
bc9d24a3 AJ |
593 | bool absent; |
594 | u32 l; | |
5740294c | 595 | |
a7624b63 AJ |
596 | if (eeepc->wlan_rfkill) |
597 | rfkill_set_sw_state(eeepc->wlan_rfkill, blocked); | |
6d41839e | 598 | |
a7624b63 | 599 | mutex_lock(&eeepc->hotplug_lock); |
dcf443b5 | 600 | |
a7624b63 | 601 | if (eeepc->hotplug_slot) { |
07e84aa9 AJ |
602 | bus = pci_find_bus(0, 1); |
603 | if (!bus) { | |
604 | pr_warning("Unable to find PCI bus 1?\n"); | |
dcf443b5 | 605 | goto out_unlock; |
5740294c | 606 | } |
07e84aa9 | 607 | |
bc9d24a3 AJ |
608 | if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) { |
609 | pr_err("Unable to read PCI config space?\n"); | |
610 | goto out_unlock; | |
611 | } | |
612 | absent = (l == 0xffffffff); | |
613 | ||
614 | if (blocked != absent) { | |
615 | pr_warning("BIOS says wireless lan is %s, " | |
616 | "but the pci device is %s\n", | |
617 | blocked ? "blocked" : "unblocked", | |
618 | absent ? "absent" : "present"); | |
619 | pr_warning("skipped wireless hotplug as probably " | |
620 | "inappropriate for this model\n"); | |
621 | goto out_unlock; | |
622 | } | |
623 | ||
07e84aa9 AJ |
624 | if (!blocked) { |
625 | dev = pci_get_slot(bus, 0); | |
626 | if (dev) { | |
627 | /* Device already present */ | |
628 | pci_dev_put(dev); | |
629 | goto out_unlock; | |
630 | } | |
631 | dev = pci_scan_single_device(bus, 0); | |
632 | if (dev) { | |
633 | pci_bus_assign_resources(bus); | |
634 | if (pci_bus_add_device(dev)) | |
635 | pr_err("Unable to hotplug wifi\n"); | |
636 | } | |
637 | } else { | |
638 | dev = pci_get_slot(bus, 0); | |
639 | if (dev) { | |
640 | pci_remove_bus_device(dev); | |
641 | pci_dev_put(dev); | |
642 | } | |
5740294c MG |
643 | } |
644 | } | |
dcf443b5 AJ |
645 | |
646 | out_unlock: | |
a7624b63 | 647 | mutex_unlock(&eeepc->hotplug_lock); |
5740294c MG |
648 | } |
649 | ||
96e9cfeb AJ |
650 | static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) |
651 | { | |
854c7836 AJ |
652 | struct eeepc_laptop *eeepc = data; |
653 | ||
96e9cfeb AJ |
654 | if (event != ACPI_NOTIFY_BUS_CHECK) |
655 | return; | |
656 | ||
854c7836 | 657 | eeepc_rfkill_hotplug(eeepc); |
e59f8796 EC |
658 | } |
659 | ||
854c7836 AJ |
660 | static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc, |
661 | char *node) | |
5740294c | 662 | { |
854c7836 | 663 | acpi_status status; |
5740294c MG |
664 | acpi_handle handle; |
665 | ||
666 | status = acpi_get_handle(NULL, node, &handle); | |
667 | ||
668 | if (ACPI_SUCCESS(status)) { | |
669 | status = acpi_install_notify_handler(handle, | |
670 | ACPI_SYSTEM_NOTIFY, | |
671 | eeepc_rfkill_notify, | |
854c7836 | 672 | eeepc); |
5740294c | 673 | if (ACPI_FAILURE(status)) |
19b53289 | 674 | pr_warning("Failed to register notify on %s\n", node); |
5740294c MG |
675 | } else |
676 | return -ENODEV; | |
677 | ||
678 | return 0; | |
679 | } | |
680 | ||
854c7836 AJ |
681 | static void eeepc_unregister_rfkill_notifier(struct eeepc_laptop *eeepc, |
682 | char *node) | |
5740294c MG |
683 | { |
684 | acpi_status status = AE_OK; | |
685 | acpi_handle handle; | |
686 | ||
687 | status = acpi_get_handle(NULL, node, &handle); | |
688 | ||
689 | if (ACPI_SUCCESS(status)) { | |
690 | status = acpi_remove_notify_handler(handle, | |
691 | ACPI_SYSTEM_NOTIFY, | |
692 | eeepc_rfkill_notify); | |
693 | if (ACPI_FAILURE(status)) | |
19b53289 | 694 | pr_err("Error removing rfkill notify handler %s\n", |
5740294c MG |
695 | node); |
696 | } | |
697 | } | |
698 | ||
52bbe3c7 AJ |
699 | static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, |
700 | u8 *value) | |
701 | { | |
854c7836 AJ |
702 | struct eeepc_laptop *eeepc = hotplug_slot->private; |
703 | int val = get_acpi(eeepc, CM_ASL_WLAN); | |
52bbe3c7 AJ |
704 | |
705 | if (val == 1 || val == 0) | |
706 | *value = val; | |
707 | else | |
708 | return -EINVAL; | |
709 | ||
710 | return 0; | |
711 | } | |
712 | ||
2b121bc2 CC |
713 | static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot) |
714 | { | |
715 | kfree(hotplug_slot->info); | |
716 | kfree(hotplug_slot); | |
717 | } | |
718 | ||
52bbe3c7 AJ |
719 | static struct hotplug_slot_ops eeepc_hotplug_slot_ops = { |
720 | .owner = THIS_MODULE, | |
721 | .get_adapter_status = eeepc_get_adapter_status, | |
722 | .get_power_status = eeepc_get_adapter_status, | |
723 | }; | |
724 | ||
854c7836 | 725 | static int eeepc_setup_pci_hotplug(struct eeepc_laptop *eeepc) |
2b121bc2 CC |
726 | { |
727 | int ret = -ENOMEM; | |
728 | struct pci_bus *bus = pci_find_bus(0, 1); | |
729 | ||
730 | if (!bus) { | |
19b53289 | 731 | pr_err("Unable to find wifi PCI bus\n"); |
2b121bc2 CC |
732 | return -ENODEV; |
733 | } | |
734 | ||
a7624b63 AJ |
735 | eeepc->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); |
736 | if (!eeepc->hotplug_slot) | |
2b121bc2 CC |
737 | goto error_slot; |
738 | ||
a7624b63 | 739 | eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), |
2b121bc2 | 740 | GFP_KERNEL); |
a7624b63 | 741 | if (!eeepc->hotplug_slot->info) |
2b121bc2 CC |
742 | goto error_info; |
743 | ||
a7624b63 AJ |
744 | eeepc->hotplug_slot->private = eeepc; |
745 | eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug; | |
746 | eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops; | |
747 | eeepc_get_adapter_status(eeepc->hotplug_slot, | |
748 | &eeepc->hotplug_slot->info->adapter_status); | |
2b121bc2 | 749 | |
a7624b63 | 750 | ret = pci_hp_register(eeepc->hotplug_slot, bus, 0, "eeepc-wifi"); |
2b121bc2 | 751 | if (ret) { |
19b53289 | 752 | pr_err("Unable to register hotplug slot - %d\n", ret); |
2b121bc2 CC |
753 | goto error_register; |
754 | } | |
755 | ||
756 | return 0; | |
757 | ||
758 | error_register: | |
a7624b63 | 759 | kfree(eeepc->hotplug_slot->info); |
2b121bc2 | 760 | error_info: |
a7624b63 AJ |
761 | kfree(eeepc->hotplug_slot); |
762 | eeepc->hotplug_slot = NULL; | |
2b121bc2 CC |
763 | error_slot: |
764 | return ret; | |
765 | } | |
766 | ||
52bbe3c7 AJ |
767 | /* |
768 | * Rfkill devices | |
769 | */ | |
770 | static int eeepc_rfkill_set(void *data, bool blocked) | |
96e9cfeb | 771 | { |
854c7836 | 772 | acpi_handle handle = data; |
c200da5d | 773 | |
854c7836 | 774 | return write_acpi_int(handle, NULL, !blocked); |
c200da5d | 775 | } |
96e9cfeb | 776 | |
52bbe3c7 AJ |
777 | static const struct rfkill_ops eeepc_rfkill_ops = { |
778 | .set_block = eeepc_rfkill_set, | |
779 | }; | |
780 | ||
854c7836 AJ |
781 | static int eeepc_new_rfkill(struct eeepc_laptop *eeepc, |
782 | struct rfkill **rfkill, | |
783 | const char *name, | |
52bbe3c7 AJ |
784 | enum rfkill_type type, int cm) |
785 | { | |
854c7836 | 786 | acpi_handle handle; |
52bbe3c7 AJ |
787 | int result; |
788 | ||
854c7836 | 789 | result = acpi_setter_handle(eeepc, cm, &handle); |
52bbe3c7 AJ |
790 | if (result < 0) |
791 | return result; | |
792 | ||
854c7836 AJ |
793 | *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type, |
794 | &eeepc_rfkill_ops, handle); | |
96e9cfeb | 795 | |
52bbe3c7 AJ |
796 | if (!*rfkill) |
797 | return -EINVAL; | |
798 | ||
854c7836 | 799 | rfkill_init_sw_state(*rfkill, get_acpi(eeepc, cm) != 1); |
52bbe3c7 AJ |
800 | result = rfkill_register(*rfkill); |
801 | if (result) { | |
802 | rfkill_destroy(*rfkill); | |
803 | *rfkill = NULL; | |
804 | return result; | |
805 | } | |
96e9cfeb AJ |
806 | return 0; |
807 | } | |
808 | ||
854c7836 | 809 | static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc) |
52bbe3c7 | 810 | { |
854c7836 AJ |
811 | eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5"); |
812 | eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6"); | |
813 | eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7"); | |
a7624b63 AJ |
814 | if (eeepc->wlan_rfkill) { |
815 | rfkill_unregister(eeepc->wlan_rfkill); | |
816 | rfkill_destroy(eeepc->wlan_rfkill); | |
817 | eeepc->wlan_rfkill = NULL; | |
52bbe3c7 AJ |
818 | } |
819 | /* | |
820 | * Refresh pci hotplug in case the rfkill state was changed after | |
821 | * eeepc_unregister_rfkill_notifier() | |
822 | */ | |
854c7836 | 823 | eeepc_rfkill_hotplug(eeepc); |
a7624b63 AJ |
824 | if (eeepc->hotplug_slot) |
825 | pci_hp_deregister(eeepc->hotplug_slot); | |
52bbe3c7 | 826 | |
a7624b63 AJ |
827 | if (eeepc->bluetooth_rfkill) { |
828 | rfkill_unregister(eeepc->bluetooth_rfkill); | |
829 | rfkill_destroy(eeepc->bluetooth_rfkill); | |
830 | eeepc->bluetooth_rfkill = NULL; | |
52bbe3c7 | 831 | } |
a7624b63 AJ |
832 | if (eeepc->wwan3g_rfkill) { |
833 | rfkill_unregister(eeepc->wwan3g_rfkill); | |
834 | rfkill_destroy(eeepc->wwan3g_rfkill); | |
835 | eeepc->wwan3g_rfkill = NULL; | |
52bbe3c7 | 836 | } |
a7624b63 AJ |
837 | if (eeepc->wimax_rfkill) { |
838 | rfkill_unregister(eeepc->wimax_rfkill); | |
839 | rfkill_destroy(eeepc->wimax_rfkill); | |
840 | eeepc->wimax_rfkill = NULL; | |
52bbe3c7 AJ |
841 | } |
842 | } | |
843 | ||
854c7836 | 844 | static int eeepc_rfkill_init(struct eeepc_laptop *eeepc) |
52bbe3c7 AJ |
845 | { |
846 | int result = 0; | |
847 | ||
a7624b63 | 848 | mutex_init(&eeepc->hotplug_lock); |
52bbe3c7 | 849 | |
854c7836 AJ |
850 | result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill, |
851 | "eeepc-wlan", RFKILL_TYPE_WLAN, | |
852 | CM_ASL_WLAN); | |
52bbe3c7 AJ |
853 | |
854 | if (result && result != -ENODEV) | |
855 | goto exit; | |
856 | ||
854c7836 AJ |
857 | result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill, |
858 | "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH, | |
859 | CM_ASL_BLUETOOTH); | |
52bbe3c7 AJ |
860 | |
861 | if (result && result != -ENODEV) | |
862 | goto exit; | |
863 | ||
854c7836 AJ |
864 | result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill, |
865 | "eeepc-wwan3g", RFKILL_TYPE_WWAN, | |
866 | CM_ASL_3G); | |
52bbe3c7 AJ |
867 | |
868 | if (result && result != -ENODEV) | |
869 | goto exit; | |
870 | ||
854c7836 AJ |
871 | result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill, |
872 | "eeepc-wimax", RFKILL_TYPE_WIMAX, | |
873 | CM_ASL_WIMAX); | |
52bbe3c7 AJ |
874 | |
875 | if (result && result != -ENODEV) | |
876 | goto exit; | |
877 | ||
10ae4b56 CC |
878 | if (eeepc->hotplug_disabled) |
879 | return 0; | |
880 | ||
854c7836 | 881 | result = eeepc_setup_pci_hotplug(eeepc); |
52bbe3c7 AJ |
882 | /* |
883 | * If we get -EBUSY then something else is handling the PCI hotplug - | |
884 | * don't fail in this case | |
885 | */ | |
886 | if (result == -EBUSY) | |
887 | result = 0; | |
888 | ||
854c7836 AJ |
889 | eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5"); |
890 | eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6"); | |
891 | eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7"); | |
52bbe3c7 AJ |
892 | /* |
893 | * Refresh pci hotplug in case the rfkill state was changed during | |
894 | * setup. | |
895 | */ | |
854c7836 | 896 | eeepc_rfkill_hotplug(eeepc); |
52bbe3c7 AJ |
897 | |
898 | exit: | |
899 | if (result && result != -ENODEV) | |
854c7836 | 900 | eeepc_rfkill_exit(eeepc); |
52bbe3c7 AJ |
901 | return result; |
902 | } | |
903 | ||
e1faa9da | 904 | /* |
52bbe3c7 | 905 | * Platform driver - hibernate/resume callbacks |
e1faa9da | 906 | */ |
854c7836 | 907 | static int eeepc_hotk_thaw(struct device *device) |
96e9cfeb | 908 | { |
854c7836 AJ |
909 | struct eeepc_laptop *eeepc = dev_get_drvdata(device); |
910 | ||
a7624b63 | 911 | if (eeepc->wlan_rfkill) { |
96e9cfeb AJ |
912 | bool wlan; |
913 | ||
c1edd99f AJ |
914 | /* |
915 | * Work around bios bug - acpi _PTS turns off the wireless led | |
916 | * during suspend. Normally it restores it on resume, but | |
c200da5d | 917 | * we should kick it ourselves in case hibernation is aborted. |
96e9cfeb | 918 | */ |
854c7836 AJ |
919 | wlan = get_acpi(eeepc, CM_ASL_WLAN); |
920 | set_acpi(eeepc, CM_ASL_WLAN, wlan); | |
c200da5d AJ |
921 | } |
922 | ||
923 | return 0; | |
924 | } | |
96e9cfeb | 925 | |
854c7836 | 926 | static int eeepc_hotk_restore(struct device *device) |
c200da5d | 927 | { |
854c7836 AJ |
928 | struct eeepc_laptop *eeepc = dev_get_drvdata(device); |
929 | ||
c200da5d | 930 | /* Refresh both wlan rfkill state and pci hotplug */ |
a7624b63 | 931 | if (eeepc->wlan_rfkill) |
854c7836 | 932 | eeepc_rfkill_hotplug(eeepc); |
96e9cfeb | 933 | |
a7624b63 AJ |
934 | if (eeepc->bluetooth_rfkill) |
935 | rfkill_set_sw_state(eeepc->bluetooth_rfkill, | |
854c7836 | 936 | get_acpi(eeepc, CM_ASL_BLUETOOTH) != 1); |
a7624b63 AJ |
937 | if (eeepc->wwan3g_rfkill) |
938 | rfkill_set_sw_state(eeepc->wwan3g_rfkill, | |
854c7836 | 939 | get_acpi(eeepc, CM_ASL_3G) != 1); |
a7624b63 AJ |
940 | if (eeepc->wimax_rfkill) |
941 | rfkill_set_sw_state(eeepc->wimax_rfkill, | |
854c7836 | 942 | get_acpi(eeepc, CM_ASL_WIMAX) != 1); |
96e9cfeb AJ |
943 | |
944 | return 0; | |
945 | } | |
946 | ||
9a3bff23 | 947 | static const struct dev_pm_ops eeepc_pm_ops = { |
854c7836 AJ |
948 | .thaw = eeepc_hotk_thaw, |
949 | .restore = eeepc_hotk_restore, | |
52bbe3c7 AJ |
950 | }; |
951 | ||
952 | static struct platform_driver platform_driver = { | |
953 | .driver = { | |
a7624b63 | 954 | .name = EEEPC_LAPTOP_FILE, |
52bbe3c7 AJ |
955 | .owner = THIS_MODULE, |
956 | .pm = &eeepc_pm_ops, | |
957 | } | |
958 | }; | |
959 | ||
e1faa9da | 960 | /* |
52bbe3c7 | 961 | * Hwmon device |
e1faa9da | 962 | */ |
52bbe3c7 AJ |
963 | |
964 | #define EEEPC_EC_SC00 0x61 | |
965 | #define EEEPC_EC_FAN_PWM (EEEPC_EC_SC00 + 2) /* Fan PWM duty cycle (%) */ | |
966 | #define EEEPC_EC_FAN_HRPM (EEEPC_EC_SC00 + 5) /* High byte, fan speed (RPM) */ | |
967 | #define EEEPC_EC_FAN_LRPM (EEEPC_EC_SC00 + 6) /* Low byte, fan speed (RPM) */ | |
968 | ||
969 | #define EEEPC_EC_SFB0 0xD0 | |
970 | #define EEEPC_EC_FAN_CTRL (EEEPC_EC_SFB0 + 3) /* Byte containing SF25 */ | |
971 | ||
e1faa9da CC |
972 | static int eeepc_get_fan_pwm(void) |
973 | { | |
463b4e47 | 974 | u8 value = 0; |
e1faa9da | 975 | |
463b4e47 AJ |
976 | ec_read(EEEPC_EC_FAN_PWM, &value); |
977 | return value * 255 / 100; | |
e1faa9da CC |
978 | } |
979 | ||
980 | static void eeepc_set_fan_pwm(int value) | |
981 | { | |
04dcd84b CC |
982 | value = SENSORS_LIMIT(value, 0, 255); |
983 | value = value * 100 / 255; | |
463b4e47 | 984 | ec_write(EEEPC_EC_FAN_PWM, value); |
e1faa9da CC |
985 | } |
986 | ||
987 | static int eeepc_get_fan_rpm(void) | |
988 | { | |
463b4e47 AJ |
989 | u8 high = 0; |
990 | u8 low = 0; | |
e1faa9da | 991 | |
463b4e47 AJ |
992 | ec_read(EEEPC_EC_FAN_HRPM, &high); |
993 | ec_read(EEEPC_EC_FAN_LRPM, &low); | |
994 | return high << 8 | low; | |
e1faa9da CC |
995 | } |
996 | ||
997 | static int eeepc_get_fan_ctrl(void) | |
998 | { | |
463b4e47 | 999 | u8 value = 0; |
e1faa9da | 1000 | |
463b4e47 | 1001 | ec_read(EEEPC_EC_FAN_CTRL, &value); |
48718688 AJ |
1002 | if (value & 0x02) |
1003 | return 1; /* manual */ | |
1004 | else | |
1005 | return 2; /* automatic */ | |
e1faa9da CC |
1006 | } |
1007 | ||
1008 | static void eeepc_set_fan_ctrl(int manual) | |
1009 | { | |
463b4e47 | 1010 | u8 value = 0; |
e1faa9da | 1011 | |
463b4e47 | 1012 | ec_read(EEEPC_EC_FAN_CTRL, &value); |
48718688 | 1013 | if (manual == 1) |
e1faa9da CC |
1014 | value |= 0x02; |
1015 | else | |
1016 | value &= ~0x02; | |
463b4e47 | 1017 | ec_write(EEEPC_EC_FAN_CTRL, value); |
e1faa9da CC |
1018 | } |
1019 | ||
1020 | static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) | |
1021 | { | |
1022 | int rv, value; | |
1023 | ||
1024 | rv = parse_arg(buf, count, &value); | |
1025 | if (rv > 0) | |
1026 | set(value); | |
1027 | return rv; | |
1028 | } | |
1029 | ||
1030 | static ssize_t show_sys_hwmon(int (*get)(void), char *buf) | |
1031 | { | |
1032 | return sprintf(buf, "%d\n", get()); | |
1033 | } | |
1034 | ||
1035 | #define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \ | |
1036 | static ssize_t show_##_name(struct device *dev, \ | |
1037 | struct device_attribute *attr, \ | |
1038 | char *buf) \ | |
1039 | { \ | |
1040 | return show_sys_hwmon(_set, buf); \ | |
1041 | } \ | |
1042 | static ssize_t store_##_name(struct device *dev, \ | |
1043 | struct device_attribute *attr, \ | |
1044 | const char *buf, size_t count) \ | |
1045 | { \ | |
1046 | return store_sys_hwmon(_get, buf, count); \ | |
1047 | } \ | |
1048 | static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0); | |
1049 | ||
1050 | EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL); | |
04dcd84b | 1051 | EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR, |
e1faa9da CC |
1052 | eeepc_get_fan_pwm, eeepc_set_fan_pwm); |
1053 | EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, | |
1054 | eeepc_get_fan_ctrl, eeepc_set_fan_ctrl); | |
1055 | ||
04dcd84b CC |
1056 | static ssize_t |
1057 | show_name(struct device *dev, struct device_attribute *attr, char *buf) | |
1058 | { | |
1059 | return sprintf(buf, "eeepc\n"); | |
1060 | } | |
1061 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); | |
1062 | ||
e1faa9da | 1063 | static struct attribute *hwmon_attributes[] = { |
04dcd84b | 1064 | &sensor_dev_attr_pwm1.dev_attr.attr, |
e1faa9da CC |
1065 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1066 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
04dcd84b | 1067 | &sensor_dev_attr_name.dev_attr.attr, |
e1faa9da CC |
1068 | NULL |
1069 | }; | |
1070 | ||
1071 | static struct attribute_group hwmon_attribute_group = { | |
1072 | .attrs = hwmon_attributes | |
1073 | }; | |
1074 | ||
854c7836 | 1075 | static void eeepc_hwmon_exit(struct eeepc_laptop *eeepc) |
a5fa429b | 1076 | { |
e1faa9da CC |
1077 | struct device *hwmon; |
1078 | ||
854c7836 | 1079 | hwmon = eeepc->hwmon_device; |
e1faa9da | 1080 | if (!hwmon) |
854c7836 | 1081 | return; |
e1faa9da CC |
1082 | sysfs_remove_group(&hwmon->kobj, |
1083 | &hwmon_attribute_group); | |
f1441318 | 1084 | hwmon_device_unregister(hwmon); |
854c7836 | 1085 | eeepc->hwmon_device = NULL; |
a9df80c5 CC |
1086 | } |
1087 | ||
854c7836 | 1088 | static int eeepc_hwmon_init(struct eeepc_laptop *eeepc) |
a9df80c5 | 1089 | { |
52bbe3c7 | 1090 | struct device *hwmon; |
7de39389 CC |
1091 | int result; |
1092 | ||
854c7836 | 1093 | hwmon = hwmon_device_register(&eeepc->platform_device->dev); |
52bbe3c7 AJ |
1094 | if (IS_ERR(hwmon)) { |
1095 | pr_err("Could not register eeepc hwmon device\n"); | |
854c7836 | 1096 | eeepc->hwmon_device = NULL; |
52bbe3c7 | 1097 | return PTR_ERR(hwmon); |
a8258069 | 1098 | } |
854c7836 | 1099 | eeepc->hwmon_device = hwmon; |
52bbe3c7 AJ |
1100 | result = sysfs_create_group(&hwmon->kobj, |
1101 | &hwmon_attribute_group); | |
1102 | if (result) | |
854c7836 | 1103 | eeepc_hwmon_exit(eeepc); |
52bbe3c7 | 1104 | return result; |
a9df80c5 CC |
1105 | } |
1106 | ||
52bbe3c7 AJ |
1107 | /* |
1108 | * Backlight device | |
1109 | */ | |
1110 | static int read_brightness(struct backlight_device *bd) | |
a9df80c5 | 1111 | { |
854c7836 AJ |
1112 | struct eeepc_laptop *eeepc = bl_get_data(bd); |
1113 | ||
1114 | return get_acpi(eeepc, CM_ASL_PANELBRIGHT); | |
a5fa429b CC |
1115 | } |
1116 | ||
52bbe3c7 | 1117 | static int set_brightness(struct backlight_device *bd, int value) |
e1faa9da | 1118 | { |
854c7836 | 1119 | struct eeepc_laptop *eeepc = bl_get_data(bd); |
e1faa9da | 1120 | |
854c7836 | 1121 | return set_acpi(eeepc, CM_ASL_PANELBRIGHT, value); |
e1faa9da CC |
1122 | } |
1123 | ||
52bbe3c7 | 1124 | static int update_bl_status(struct backlight_device *bd) |
7de39389 | 1125 | { |
52bbe3c7 AJ |
1126 | return set_brightness(bd, bd->props.brightness); |
1127 | } | |
7de39389 | 1128 | |
52bbe3c7 AJ |
1129 | static struct backlight_ops eeepcbl_ops = { |
1130 | .get_brightness = read_brightness, | |
1131 | .update_status = update_bl_status, | |
1132 | }; | |
7de39389 | 1133 | |
854c7836 | 1134 | static int eeepc_backlight_notify(struct eeepc_laptop *eeepc) |
52bbe3c7 | 1135 | { |
854c7836 | 1136 | struct backlight_device *bd = eeepc->backlight_device; |
52bbe3c7 | 1137 | int old = bd->props.brightness; |
7de39389 | 1138 | |
52bbe3c7 | 1139 | backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); |
7de39389 | 1140 | |
52bbe3c7 | 1141 | return old; |
7de39389 CC |
1142 | } |
1143 | ||
854c7836 | 1144 | static int eeepc_backlight_init(struct eeepc_laptop *eeepc) |
7de39389 | 1145 | { |
a19a6ee6 | 1146 | struct backlight_properties props; |
a5fa429b | 1147 | struct backlight_device *bd; |
7334546a | 1148 | |
a19a6ee6 MG |
1149 | memset(&props, 0, sizeof(struct backlight_properties)); |
1150 | props.max_brightness = 15; | |
854c7836 | 1151 | bd = backlight_device_register(EEEPC_LAPTOP_FILE, |
a19a6ee6 MG |
1152 | &eeepc->platform_device->dev, eeepc, |
1153 | &eeepcbl_ops, &props); | |
a5fa429b | 1154 | if (IS_ERR(bd)) { |
19b53289 | 1155 | pr_err("Could not register eeepc backlight device\n"); |
854c7836 | 1156 | eeepc->backlight_device = NULL; |
a5fa429b CC |
1157 | return PTR_ERR(bd); |
1158 | } | |
854c7836 | 1159 | eeepc->backlight_device = bd; |
854c7836 | 1160 | bd->props.brightness = read_brightness(bd); |
a5fa429b CC |
1161 | bd->props.power = FB_BLANK_UNBLANK; |
1162 | backlight_update_status(bd); | |
1163 | return 0; | |
1164 | } | |
7de39389 | 1165 | |
854c7836 | 1166 | static void eeepc_backlight_exit(struct eeepc_laptop *eeepc) |
e1faa9da | 1167 | { |
854c7836 AJ |
1168 | if (eeepc->backlight_device) |
1169 | backlight_device_unregister(eeepc->backlight_device); | |
1170 | eeepc->backlight_device = NULL; | |
52bbe3c7 | 1171 | } |
7de39389 | 1172 | |
7de39389 | 1173 | |
52bbe3c7 AJ |
1174 | /* |
1175 | * Input device (i.e. hotkeys) | |
1176 | */ | |
642e0447 | 1177 | static int eeepc_input_init(struct eeepc_laptop *eeepc) |
52bbe3c7 | 1178 | { |
642e0447 DT |
1179 | struct input_dev *input; |
1180 | int error; | |
3cd530b5 | 1181 | |
642e0447 DT |
1182 | input = input_allocate_device(); |
1183 | if (!input) { | |
1184 | pr_info("Unable to allocate input device\n"); | |
1185 | return -ENOMEM; | |
e1faa9da | 1186 | } |
07e84aa9 | 1187 | |
642e0447 DT |
1188 | input->name = "Asus EeePC extra buttons"; |
1189 | input->phys = EEEPC_LAPTOP_FILE "/input0"; | |
1190 | input->id.bustype = BUS_HOST; | |
1191 | input->dev.parent = &eeepc->platform_device->dev; | |
7de39389 | 1192 | |
642e0447 DT |
1193 | error = sparse_keymap_setup(input, eeepc_keymap, NULL); |
1194 | if (error) { | |
1195 | pr_err("Unable to setup input device keymap\n"); | |
1196 | goto err_free_dev; | |
a5fa429b | 1197 | } |
52bbe3c7 | 1198 | |
642e0447 DT |
1199 | error = input_register_device(input); |
1200 | if (error) { | |
1201 | pr_err("Unable to register input device\n"); | |
1202 | goto err_free_keymap; | |
e1faa9da | 1203 | } |
52bbe3c7 | 1204 | |
642e0447 | 1205 | eeepc->inputdev = input; |
f2a9d5e8 | 1206 | return 0; |
642e0447 | 1207 | |
71e687dc | 1208 | err_free_keymap: |
642e0447 | 1209 | sparse_keymap_free(input); |
71e687dc | 1210 | err_free_dev: |
642e0447 DT |
1211 | input_free_device(input); |
1212 | return error; | |
f2a9d5e8 AJ |
1213 | } |
1214 | ||
854c7836 | 1215 | static void eeepc_input_exit(struct eeepc_laptop *eeepc) |
e59f8796 | 1216 | { |
854c7836 | 1217 | if (eeepc->inputdev) { |
c9db3efe | 1218 | sparse_keymap_free(eeepc->inputdev); |
a7624b63 | 1219 | input_unregister_device(eeepc->inputdev); |
854c7836 | 1220 | } |
71e687dc | 1221 | eeepc->inputdev = NULL; |
52bbe3c7 | 1222 | } |
3c0eb510 | 1223 | |
52bbe3c7 AJ |
1224 | /* |
1225 | * ACPI driver | |
1226 | */ | |
a7624b63 | 1227 | static void eeepc_acpi_notify(struct acpi_device *device, u32 event) |
52bbe3c7 | 1228 | { |
854c7836 | 1229 | struct eeepc_laptop *eeepc = acpi_driver_data(device); |
52bbe3c7 | 1230 | u16 count; |
3c0eb510 | 1231 | |
52bbe3c7 AJ |
1232 | if (event > ACPI_MAX_SYS_NOTIFY) |
1233 | return; | |
a7624b63 | 1234 | count = eeepc->event_count[event % 128]++; |
854c7836 AJ |
1235 | acpi_bus_generate_proc_event(device, event, count); |
1236 | acpi_bus_generate_netlink_event(device->pnp.device_class, | |
1237 | dev_name(&device->dev), event, | |
52bbe3c7 | 1238 | count); |
3c0eb510 | 1239 | |
325fb8e9 | 1240 | /* Brightness events are special */ |
52bbe3c7 | 1241 | if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) { |
52bbe3c7 | 1242 | |
325fb8e9 AJ |
1243 | /* Ignore them completely if the acpi video driver is used */ |
1244 | if (eeepc->backlight_device != NULL) { | |
1245 | int old_brightness, new_brightness; | |
1246 | ||
1247 | /* Update the backlight device. */ | |
1248 | old_brightness = eeepc_backlight_notify(eeepc); | |
1249 | ||
1250 | /* Convert event to keypress (obsolescent hack) */ | |
1251 | new_brightness = event - NOTIFY_BRN_MIN; | |
1252 | ||
1253 | if (new_brightness < old_brightness) { | |
1254 | event = NOTIFY_BRN_MIN; /* brightness down */ | |
1255 | } else if (new_brightness > old_brightness) { | |
1256 | event = NOTIFY_BRN_MAX; /* brightness up */ | |
1257 | } else { | |
1258 | /* | |
1259 | * no change in brightness - already at min/max, | |
1260 | * event will be desired value (or else ignored) | |
1261 | */ | |
1262 | } | |
642e0447 DT |
1263 | sparse_keymap_report_event(eeepc->inputdev, event, |
1264 | 1, true); | |
52bbe3c7 | 1265 | } |
325fb8e9 AJ |
1266 | } else { |
1267 | /* Everything else is a bona-fide keypress event */ | |
642e0447 | 1268 | sparse_keymap_report_event(eeepc->inputdev, event, 1, true); |
52bbe3c7 | 1269 | } |
52bbe3c7 AJ |
1270 | } |
1271 | ||
da8ba01d AJ |
1272 | static void eeepc_dmi_check(struct eeepc_laptop *eeepc) |
1273 | { | |
1274 | const char *model; | |
1275 | ||
10ae4b56 CC |
1276 | model = dmi_get_system_info(DMI_PRODUCT_NAME); |
1277 | if (!model) | |
1278 | return; | |
1279 | ||
da8ba01d AJ |
1280 | /* |
1281 | * Blacklist for setting cpufv (cpu speed). | |
1282 | * | |
1283 | * EeePC 4G ("701") implements CFVS, but it is not supported | |
1284 | * by the pre-installed OS, and the original option to change it | |
1285 | * in the BIOS setup screen was removed in later versions. | |
1286 | * | |
1287 | * Judging by the lack of "Super Hybrid Engine" on Asus product pages, | |
1288 | * this applies to all "701" models (4G/4G Surf/2G Surf). | |
1289 | * | |
1290 | * So Asus made a deliberate decision not to support it on this model. | |
1291 | * We have several reports that using it can cause the system to hang | |
1292 | * | |
1293 | * The hang has also been reported on a "702" (Model name "8G"?). | |
1294 | * | |
1295 | * We avoid dmi_check_system() / dmi_match(), because they use | |
1296 | * substring matching. We don't want to affect the "701SD" | |
1297 | * and "701SDX" models, because they do support S.H.E. | |
1298 | */ | |
da8ba01d AJ |
1299 | if (strcmp(model, "701") == 0 || strcmp(model, "702") == 0) { |
1300 | eeepc->cpufv_disabled = true; | |
1301 | pr_info("model %s does not officially support setting cpu " | |
1302 | "speed\n", model); | |
1303 | pr_info("cpufv disabled to avoid instability\n"); | |
1304 | } | |
10ae4b56 CC |
1305 | |
1306 | /* | |
1307 | * Blacklist for wlan hotplug | |
1308 | * | |
1309 | * Eeepc 1005HA doesn't work like others models and don't need the | |
1310 | * hotplug code. In fact, current hotplug code seems to unplug another | |
1311 | * device... | |
1312 | */ | |
ced69c59 AJ |
1313 | if (strcmp(model, "1005HA") == 0 || strcmp(model, "1201N") == 0 || |
1314 | strcmp(model, "1005PE") == 0) { | |
10ae4b56 CC |
1315 | eeepc->hotplug_disabled = true; |
1316 | pr_info("wlan hotplug disabled\n"); | |
1317 | } | |
da8ba01d AJ |
1318 | } |
1319 | ||
854c7836 | 1320 | static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name) |
52bbe3c7 AJ |
1321 | { |
1322 | int dummy; | |
1323 | ||
1324 | /* Some BIOSes do not report cm although it is avaliable. | |
1325 | Check if cm_getv[cm] works and, if yes, assume cm should be set. */ | |
a7624b63 AJ |
1326 | if (!(eeepc->cm_supported & (1 << cm)) |
1327 | && !read_acpi_int(eeepc->handle, cm_getv[cm], &dummy)) { | |
52bbe3c7 AJ |
1328 | pr_info("%s (%x) not reported by BIOS," |
1329 | " enabling anyway\n", name, 1 << cm); | |
a7624b63 | 1330 | eeepc->cm_supported |= 1 << cm; |
52bbe3c7 AJ |
1331 | } |
1332 | } | |
1333 | ||
854c7836 | 1334 | static void cmsg_quirks(struct eeepc_laptop *eeepc) |
52bbe3c7 | 1335 | { |
854c7836 AJ |
1336 | cmsg_quirk(eeepc, CM_ASL_LID, "LID"); |
1337 | cmsg_quirk(eeepc, CM_ASL_TYPE, "TYPE"); | |
1338 | cmsg_quirk(eeepc, CM_ASL_PANELPOWER, "PANELPOWER"); | |
1339 | cmsg_quirk(eeepc, CM_ASL_TPD, "TPD"); | |
52bbe3c7 AJ |
1340 | } |
1341 | ||
71e687dc | 1342 | static int __devinit eeepc_acpi_init(struct eeepc_laptop *eeepc) |
52bbe3c7 AJ |
1343 | { |
1344 | unsigned int init_flags; | |
e59f8796 EC |
1345 | int result; |
1346 | ||
71e687dc | 1347 | result = acpi_bus_get_status(eeepc->device); |
1e779854 | 1348 | if (result) |
52bbe3c7 | 1349 | return result; |
71e687dc | 1350 | if (!eeepc->device->status.present) { |
52bbe3c7 AJ |
1351 | pr_err("Hotkey device not present, aborting\n"); |
1352 | return -ENODEV; | |
1353 | } | |
cede2cb6 | 1354 | |
52bbe3c7 AJ |
1355 | init_flags = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; |
1356 | pr_notice("Hotkey init flags 0x%x\n", init_flags); | |
1357 | ||
a7624b63 | 1358 | if (write_acpi_int(eeepc->handle, "INIT", init_flags)) { |
52bbe3c7 AJ |
1359 | pr_err("Hotkey initialization failed\n"); |
1360 | return -ENODEV; | |
e59f8796 | 1361 | } |
52bbe3c7 AJ |
1362 | |
1363 | /* get control methods supported */ | |
a7624b63 | 1364 | if (read_acpi_int(eeepc->handle, "CMSG", &eeepc->cm_supported)) { |
52bbe3c7 AJ |
1365 | pr_err("Get control methods supported failed\n"); |
1366 | return -ENODEV; | |
dc56ad9b | 1367 | } |
854c7836 | 1368 | cmsg_quirks(eeepc); |
a7624b63 | 1369 | pr_info("Get control methods supported: 0x%x\n", eeepc->cm_supported); |
2b56f1c1 | 1370 | |
3c0eb510 CC |
1371 | return 0; |
1372 | } | |
1373 | ||
854c7836 | 1374 | static void __devinit eeepc_enable_camera(struct eeepc_laptop *eeepc) |
52bbe3c7 AJ |
1375 | { |
1376 | /* | |
1377 | * If the following call to set_acpi() fails, it's because there's no | |
1378 | * camera so we can ignore the error. | |
1379 | */ | |
854c7836 AJ |
1380 | if (get_acpi(eeepc, CM_ASL_CAMERA) == 0) |
1381 | set_acpi(eeepc, CM_ASL_CAMERA, 1); | |
52bbe3c7 AJ |
1382 | } |
1383 | ||
854c7836 AJ |
1384 | static bool eeepc_device_present; |
1385 | ||
a7624b63 | 1386 | static int __devinit eeepc_acpi_add(struct acpi_device *device) |
e59f8796 | 1387 | { |
854c7836 | 1388 | struct eeepc_laptop *eeepc; |
e59f8796 EC |
1389 | int result; |
1390 | ||
a7624b63 AJ |
1391 | pr_notice(EEEPC_LAPTOP_NAME "\n"); |
1392 | eeepc = kzalloc(sizeof(struct eeepc_laptop), GFP_KERNEL); | |
1393 | if (!eeepc) | |
1e779854 | 1394 | return -ENOMEM; |
a7624b63 AJ |
1395 | eeepc->handle = device->handle; |
1396 | strcpy(acpi_device_name(device), EEEPC_ACPI_DEVICE_NAME); | |
1397 | strcpy(acpi_device_class(device), EEEPC_ACPI_CLASS); | |
1398 | device->driver_data = eeepc; | |
71e687dc | 1399 | eeepc->device = device; |
cede2cb6 | 1400 | |
322a1356 CC |
1401 | eeepc->hotplug_disabled = hotplug_disabled; |
1402 | ||
da8ba01d AJ |
1403 | eeepc_dmi_check(eeepc); |
1404 | ||
71e687dc | 1405 | result = eeepc_acpi_init(eeepc); |
e59f8796 | 1406 | if (result) |
9db106be | 1407 | goto fail_platform; |
854c7836 | 1408 | eeepc_enable_camera(eeepc); |
7de39389 | 1409 | |
854c7836 AJ |
1410 | /* |
1411 | * Register the platform device first. It is used as a parent for the | |
1412 | * sub-devices below. | |
1413 | * | |
1414 | * Note that if there are multiple instances of this ACPI device it | |
1415 | * will bail out, because the platform device is registered with a | |
1416 | * fixed name. Of course it doesn't make sense to have more than one, | |
1417 | * and machine-specific scripts find the fixed name convenient. But | |
1418 | * It's also good for us to exclude multiple instances because both | |
1419 | * our hwmon and our wlan rfkill subdevice use global ACPI objects | |
1420 | * (the EC and the wlan PCI slot respectively). | |
1421 | */ | |
1422 | result = eeepc_platform_init(eeepc); | |
e59f8796 | 1423 | if (result) |
9db106be | 1424 | goto fail_platform; |
1ddec2f9 CC |
1425 | |
1426 | if (!acpi_video_backlight_support()) { | |
854c7836 | 1427 | result = eeepc_backlight_init(eeepc); |
1ddec2f9 CC |
1428 | if (result) |
1429 | goto fail_backlight; | |
1430 | } else | |
9db106be | 1431 | pr_info("Backlight controlled by ACPI video driver\n"); |
1ddec2f9 | 1432 | |
854c7836 | 1433 | result = eeepc_input_init(eeepc); |
f2a9d5e8 AJ |
1434 | if (result) |
1435 | goto fail_input; | |
1436 | ||
854c7836 | 1437 | result = eeepc_hwmon_init(eeepc); |
1ddec2f9 CC |
1438 | if (result) |
1439 | goto fail_hwmon; | |
1440 | ||
854c7836 | 1441 | result = eeepc_led_init(eeepc); |
3c0eb510 CC |
1442 | if (result) |
1443 | goto fail_led; | |
1444 | ||
854c7836 | 1445 | result = eeepc_rfkill_init(eeepc); |
7de39389 CC |
1446 | if (result) |
1447 | goto fail_rfkill; | |
1448 | ||
854c7836 | 1449 | eeepc_device_present = true; |
e59f8796 | 1450 | return 0; |
1e779854 | 1451 | |
7de39389 | 1452 | fail_rfkill: |
854c7836 | 1453 | eeepc_led_exit(eeepc); |
3c0eb510 | 1454 | fail_led: |
854c7836 | 1455 | eeepc_hwmon_exit(eeepc); |
1ddec2f9 | 1456 | fail_hwmon: |
854c7836 | 1457 | eeepc_input_exit(eeepc); |
f2a9d5e8 | 1458 | fail_input: |
854c7836 | 1459 | eeepc_backlight_exit(eeepc); |
1ddec2f9 | 1460 | fail_backlight: |
854c7836 | 1461 | eeepc_platform_exit(eeepc); |
9db106be | 1462 | fail_platform: |
a7624b63 | 1463 | kfree(eeepc); |
1e779854 | 1464 | |
e59f8796 EC |
1465 | return result; |
1466 | } | |
1467 | ||
a7624b63 | 1468 | static int eeepc_acpi_remove(struct acpi_device *device, int type) |
1e779854 | 1469 | { |
854c7836 | 1470 | struct eeepc_laptop *eeepc = acpi_driver_data(device); |
1e779854 | 1471 | |
854c7836 AJ |
1472 | eeepc_backlight_exit(eeepc); |
1473 | eeepc_rfkill_exit(eeepc); | |
1474 | eeepc_input_exit(eeepc); | |
1475 | eeepc_hwmon_exit(eeepc); | |
1476 | eeepc_led_exit(eeepc); | |
1477 | eeepc_platform_exit(eeepc); | |
1e779854 | 1478 | |
a7624b63 | 1479 | kfree(eeepc); |
1e779854 AJ |
1480 | return 0; |
1481 | } | |
1482 | ||
52bbe3c7 AJ |
1483 | |
1484 | static const struct acpi_device_id eeepc_device_ids[] = { | |
a7624b63 | 1485 | {EEEPC_ACPI_HID, 0}, |
52bbe3c7 AJ |
1486 | {"", 0}, |
1487 | }; | |
1488 | MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); | |
1489 | ||
a7624b63 AJ |
1490 | static struct acpi_driver eeepc_acpi_driver = { |
1491 | .name = EEEPC_LAPTOP_NAME, | |
1492 | .class = EEEPC_ACPI_CLASS, | |
52bbe3c7 AJ |
1493 | .owner = THIS_MODULE, |
1494 | .ids = eeepc_device_ids, | |
1495 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, | |
1496 | .ops = { | |
a7624b63 AJ |
1497 | .add = eeepc_acpi_add, |
1498 | .remove = eeepc_acpi_remove, | |
1499 | .notify = eeepc_acpi_notify, | |
52bbe3c7 AJ |
1500 | }, |
1501 | }; | |
1502 | ||
1503 | ||
1e779854 AJ |
1504 | static int __init eeepc_laptop_init(void) |
1505 | { | |
1506 | int result; | |
1507 | ||
22072e92 | 1508 | result = platform_driver_register(&platform_driver); |
1e779854 AJ |
1509 | if (result < 0) |
1510 | return result; | |
22072e92 | 1511 | |
a7624b63 | 1512 | result = acpi_bus_register_driver(&eeepc_acpi_driver); |
22072e92 AJ |
1513 | if (result < 0) |
1514 | goto fail_acpi_driver; | |
642e0447 | 1515 | |
854c7836 | 1516 | if (!eeepc_device_present) { |
22072e92 AJ |
1517 | result = -ENODEV; |
1518 | goto fail_no_device; | |
1e779854 | 1519 | } |
642e0447 | 1520 | |
1e779854 | 1521 | return 0; |
22072e92 AJ |
1522 | |
1523 | fail_no_device: | |
a7624b63 | 1524 | acpi_bus_unregister_driver(&eeepc_acpi_driver); |
22072e92 AJ |
1525 | fail_acpi_driver: |
1526 | platform_driver_unregister(&platform_driver); | |
1527 | return result; | |
1e779854 AJ |
1528 | } |
1529 | ||
1530 | static void __exit eeepc_laptop_exit(void) | |
1531 | { | |
a7624b63 | 1532 | acpi_bus_unregister_driver(&eeepc_acpi_driver); |
22072e92 | 1533 | platform_driver_unregister(&platform_driver); |
1e779854 AJ |
1534 | } |
1535 | ||
e59f8796 EC |
1536 | module_init(eeepc_laptop_init); |
1537 | module_exit(eeepc_laptop_exit); |