1 | /* $NetBSD: asus_acpi.c,v 1.26 2015/04/23 23:23:00 pgoyette Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2007, 2008, 2009 Jared D. McNeill <jmcneill@invisible.ca> |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
26 | * POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | #include <sys/cdefs.h> |
30 | __KERNEL_RCSID(0, "$NetBSD: asus_acpi.c,v 1.26 2015/04/23 23:23:00 pgoyette Exp $" ); |
31 | |
32 | #include <sys/param.h> |
33 | #include <sys/device.h> |
34 | #include <sys/module.h> |
35 | #include <sys/sysctl.h> |
36 | #include <sys/systm.h> |
37 | |
38 | #include <dev/acpi/acpireg.h> |
39 | #include <dev/acpi/acpivar.h> |
40 | |
41 | #define _COMPONENT ACPI_RESOURCE_COMPONENT |
42 | ACPI_MODULE_NAME ("asus_acpi" ) |
43 | |
44 | struct asus_softc { |
45 | device_t sc_dev; |
46 | struct acpi_devnode *sc_node; |
47 | |
48 | #define ASUS_PSW_DISPLAY_CYCLE 0 |
49 | #define ASUS_PSW_LAST 1 |
50 | struct sysmon_pswitch sc_smpsw[ASUS_PSW_LAST]; |
51 | bool sc_smpsw_valid; |
52 | |
53 | struct sysmon_envsys *sc_sme; |
54 | #define ASUS_SENSOR_FAN 0 |
55 | #define ASUS_SENSOR_LAST 1 |
56 | envsys_data_t sc_sensor[ASUS_SENSOR_LAST]; |
57 | |
58 | int32_t sc_brightness; |
59 | ACPI_INTEGER sc_cfvnum; |
60 | |
61 | struct sysctllog *sc_log; |
62 | int sc_cfv_mib; |
63 | int sc_cfvnum_mib; |
64 | }; |
65 | |
66 | #define ASUS_NOTIFY_WirelessSwitch 0x10 |
67 | #define ASUS_NOTIFY_BrightnessLow 0x20 |
68 | #define ASUS_NOTIFY_BrightnessHigh 0x2f |
69 | #define ASUS_NOTIFY_DisplayCycle 0x30 |
70 | #define ASUS_NOTIFY_WindowSwitch 0x12 /* XXXJDM ?? */ |
71 | #define ASUS_NOTIFY_VolumeMute 0x13 |
72 | #define ASUS_NOTIFY_VolumeDown 0x14 |
73 | #define ASUS_NOTIFY_VolumeUp 0x15 |
74 | |
75 | #define ASUS_METHOD_SDSP "SDSP" |
76 | #define ASUS_SDSP_LCD 0x01 |
77 | #define ASUS_SDSP_CRT 0x02 |
78 | #define ASUS_SDSP_TV 0x04 |
79 | #define ASUS_SDSP_DVI 0x08 |
80 | #define ASUS_SDSP_ALL \ |
81 | (ASUS_SDSP_LCD | ASUS_SDSP_CRT | ASUS_SDSP_TV | ASUS_SDSP_DVI) |
82 | #define ASUS_METHOD_PBLG "PBLG" |
83 | #define ASUS_METHOD_PBLS "PBLS" |
84 | #define ASUS_METHOD_CFVS "CFVS" |
85 | #define ASUS_METHOD_CFVG "CFVG" |
86 | |
87 | #define ASUS_EC_METHOD_FAN_RPMH "\\_SB.PCI0.SBRG.EC0.SC05" |
88 | #define ASUS_EC_METHOD_FAN_RPML "\\_SB.PCI0.SBRG.EC0.SC06" |
89 | |
90 | static int asus_match(device_t, cfdata_t, void *); |
91 | static void asus_attach(device_t, device_t, void *); |
92 | static int asus_detach(device_t, int); |
93 | |
94 | static void asus_notify_handler(ACPI_HANDLE, uint32_t, void *); |
95 | |
96 | static void asus_init(device_t); |
97 | static bool asus_suspend(device_t, const pmf_qual_t *); |
98 | static bool asus_resume(device_t, const pmf_qual_t *); |
99 | |
100 | static void asus_sysctl_setup(struct asus_softc *); |
101 | |
102 | static void asus_sensors_refresh(struct sysmon_envsys *, envsys_data_t *); |
103 | static bool asus_get_fan_speed(struct asus_softc *, uint32_t *); |
104 | |
105 | CFATTACH_DECL_NEW(asus, sizeof(struct asus_softc), |
106 | asus_match, asus_attach, asus_detach, NULL); |
107 | |
108 | static const char * const asus_ids[] = { |
109 | "ASUS010" , |
110 | NULL |
111 | }; |
112 | |
113 | static int |
114 | asus_match(device_t parent, cfdata_t match, void *opaque) |
115 | { |
116 | struct acpi_attach_args *aa = opaque; |
117 | |
118 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
119 | return 0; |
120 | |
121 | return acpi_match_hid(aa->aa_node->ad_devinfo, asus_ids); |
122 | } |
123 | |
124 | static void |
125 | asus_attach(device_t parent, device_t self, void *opaque) |
126 | { |
127 | struct asus_softc *sc = device_private(self); |
128 | struct acpi_attach_args *aa = opaque; |
129 | |
130 | sc->sc_dev = self; |
131 | sc->sc_node = aa->aa_node; |
132 | |
133 | aprint_naive("\n" ); |
134 | aprint_normal("\n" ); |
135 | |
136 | asus_init(self); |
137 | asus_sysctl_setup(sc); |
138 | |
139 | sc->sc_smpsw_valid = true; |
140 | sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_name = |
141 | PSWITCH_HK_DISPLAY_CYCLE; |
142 | sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_type = |
143 | PSWITCH_TYPE_HOTKEY; |
144 | if (sysmon_pswitch_register(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE])) { |
145 | aprint_error_dev(self, "couldn't register with sysmon\n" ); |
146 | sc->sc_smpsw_valid = false; |
147 | } |
148 | |
149 | if (asus_get_fan_speed(sc, NULL) == false) |
150 | goto out; |
151 | |
152 | sc->sc_sme = sysmon_envsys_create(); |
153 | |
154 | strcpy(sc->sc_sensor[ASUS_SENSOR_FAN].desc, "fan" ); |
155 | sc->sc_sensor[ASUS_SENSOR_FAN].units = ENVSYS_SFANRPM; |
156 | sc->sc_sensor[ASUS_SENSOR_FAN].state = ENVSYS_SINVALID; |
157 | sysmon_envsys_sensor_attach(sc->sc_sme, |
158 | &sc->sc_sensor[ASUS_SENSOR_FAN]); |
159 | |
160 | sc->sc_sme->sme_name = device_xname(self); |
161 | sc->sc_sme->sme_cookie = sc; |
162 | sc->sc_sme->sme_refresh = asus_sensors_refresh; |
163 | sc->sc_sme->sme_flags = SME_POLL_ONLY; |
164 | |
165 | if (sysmon_envsys_register(sc->sc_sme)) { |
166 | aprint_error_dev(self, "couldn't register with envsys\n" ); |
167 | sysmon_envsys_destroy(sc->sc_sme); |
168 | sc->sc_sme = NULL; |
169 | } |
170 | |
171 | out: |
172 | (void)pmf_device_register(self, asus_suspend, asus_resume); |
173 | (void)acpi_register_notify(sc->sc_node, asus_notify_handler); |
174 | } |
175 | |
176 | static int |
177 | asus_detach(device_t self, int flags) |
178 | { |
179 | struct asus_softc *sc = device_private(self); |
180 | int i; |
181 | |
182 | acpi_deregister_notify(sc->sc_node); |
183 | |
184 | if (sc->sc_smpsw_valid != false) { |
185 | |
186 | for (i = 0; i < ASUS_PSW_LAST; i++) |
187 | sysmon_pswitch_unregister(&sc->sc_smpsw[i]); |
188 | } |
189 | |
190 | if (sc->sc_sme != NULL) |
191 | sysmon_envsys_unregister(sc->sc_sme); |
192 | |
193 | if (sc->sc_log != NULL) |
194 | sysctl_teardown(&sc->sc_log); |
195 | |
196 | pmf_device_deregister(self); |
197 | |
198 | return 0; |
199 | } |
200 | |
201 | static void |
202 | asus_notify_handler(ACPI_HANDLE hdl, uint32_t notify, void *opaque) |
203 | { |
204 | struct asus_softc *sc; |
205 | device_t self = opaque; |
206 | |
207 | sc = device_private(self); |
208 | |
209 | if (notify >= ASUS_NOTIFY_BrightnessLow && |
210 | notify <= ASUS_NOTIFY_BrightnessHigh) { |
211 | aprint_debug_dev(sc->sc_dev, "brightness %d percent\n" , |
212 | (notify & 0xf) * 100 / 0xf); |
213 | return; |
214 | } |
215 | |
216 | switch (notify) { |
217 | case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */ |
218 | case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */ |
219 | break; |
220 | case ASUS_NOTIFY_DisplayCycle: |
221 | if (sc->sc_smpsw_valid == false) |
222 | break; |
223 | sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE], |
224 | PSWITCH_EVENT_PRESSED); |
225 | break; |
226 | case ASUS_NOTIFY_VolumeMute: |
227 | pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE); |
228 | break; |
229 | case ASUS_NOTIFY_VolumeDown: |
230 | pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN); |
231 | break; |
232 | case ASUS_NOTIFY_VolumeUp: |
233 | pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP); |
234 | break; |
235 | default: |
236 | aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n" , notify); |
237 | break; |
238 | } |
239 | } |
240 | |
241 | static void |
242 | asus_init(device_t self) |
243 | { |
244 | struct asus_softc *sc = device_private(self); |
245 | ACPI_INTEGER cfv; |
246 | ACPI_STATUS rv; |
247 | |
248 | /* Disable ASL display switching. */ |
249 | rv = acpi_eval_set_integer(sc->sc_node->ad_handle, "INIT" , 0x40); |
250 | |
251 | if (ACPI_FAILURE(rv)) |
252 | aprint_error_dev(self, "couldn't evaluate INIT: %s\n" , |
253 | AcpiFormatException(rv)); |
254 | |
255 | rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_CFVG, &cfv); |
256 | |
257 | if (ACPI_FAILURE(rv)) |
258 | return; |
259 | |
260 | sc->sc_cfvnum = (cfv >> 8) & 0xff; |
261 | } |
262 | |
263 | static bool |
264 | asus_suspend(device_t self, const pmf_qual_t *qual) |
265 | { |
266 | struct asus_softc *sc = device_private(self); |
267 | ACPI_INTEGER val = 0; |
268 | ACPI_STATUS rv; |
269 | |
270 | /* Capture display brightness. */ |
271 | rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, &val); |
272 | |
273 | if (ACPI_FAILURE(rv) || val > INT32_MAX) |
274 | sc->sc_brightness = -1; |
275 | else |
276 | sc->sc_brightness = val; |
277 | |
278 | return true; |
279 | } |
280 | |
281 | static bool |
282 | asus_resume(device_t self, const pmf_qual_t *qual) |
283 | { |
284 | struct asus_softc *sc = device_private(self); |
285 | ACPI_STATUS rv; |
286 | |
287 | asus_init(self); |
288 | |
289 | if (sc->sc_brightness < 0) |
290 | return true; |
291 | |
292 | /* Restore previous display brightness. */ |
293 | rv = acpi_eval_set_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, |
294 | sc->sc_brightness); |
295 | |
296 | if (ACPI_FAILURE(rv)) |
297 | aprint_error_dev(self, "couldn't evaluate PBLS: %s\n" , |
298 | AcpiFormatException(rv)); |
299 | |
300 | return true; |
301 | } |
302 | |
303 | static int |
304 | asus_sysctl_verify(SYSCTLFN_ARGS) |
305 | { |
306 | struct sysctlnode node; |
307 | struct asus_softc *sc; |
308 | ACPI_INTEGER cfv; |
309 | ACPI_STATUS rv; |
310 | int err, tmp; |
311 | |
312 | node = *rnode; |
313 | sc = rnode->sysctl_data; |
314 | if (node.sysctl_num == sc->sc_cfv_mib) { |
315 | rv = acpi_eval_integer(sc->sc_node->ad_handle, |
316 | ASUS_METHOD_CFVG, &cfv); |
317 | if (ACPI_FAILURE(rv)) |
318 | return ENXIO; |
319 | tmp = cfv & 0xff; |
320 | node.sysctl_data = &tmp; |
321 | err = sysctl_lookup(SYSCTLFN_CALL(&node)); |
322 | if (err || newp == NULL) |
323 | return err; |
324 | |
325 | if (tmp < 0 || (uint64_t)tmp >= sc->sc_cfvnum) |
326 | return EINVAL; |
327 | |
328 | rv = acpi_eval_set_integer(sc->sc_node->ad_handle, |
329 | ASUS_METHOD_CFVS, tmp); |
330 | |
331 | if (ACPI_FAILURE(rv)) |
332 | return ENXIO; |
333 | } |
334 | |
335 | return 0; |
336 | } |
337 | |
338 | static void |
339 | asus_sysctl_setup(struct asus_softc *sc) |
340 | { |
341 | const struct sysctlnode *node, *node_cfv, *node_ncfv; |
342 | int err, node_mib; |
343 | |
344 | if (sc->sc_cfvnum == 0) |
345 | return; |
346 | |
347 | err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, |
348 | CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, |
349 | NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); |
350 | if (err) |
351 | goto sysctl_err; |
352 | node_mib = node->sysctl_num; |
353 | err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, |
354 | CTLFLAG_READONLY, CTLTYPE_QUAD, "ncfv" , |
355 | SYSCTL_DESCR("Number of CPU frequency/voltage modes" ), |
356 | NULL, 0, &sc->sc_cfvnum, 0, |
357 | CTL_HW, node_mib, CTL_CREATE, CTL_EOL); |
358 | if (err) |
359 | goto sysctl_err; |
360 | sc->sc_cfvnum_mib = node_ncfv->sysctl_num; |
361 | err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, |
362 | CTLFLAG_READWRITE, CTLTYPE_INT, "cfv" , |
363 | SYSCTL_DESCR("Current CPU frequency/voltage mode" ), |
364 | asus_sysctl_verify, 0, (void *)sc, 0, |
365 | CTL_HW, node_mib, CTL_CREATE, CTL_EOL); |
366 | if (err) |
367 | goto sysctl_err; |
368 | sc->sc_cfv_mib = node_cfv->sysctl_num; |
369 | |
370 | return; |
371 | sysctl_err: |
372 | aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n" , err); |
373 | } |
374 | |
375 | static void |
376 | asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) |
377 | { |
378 | struct asus_softc *sc = sme->sme_cookie; |
379 | uint32_t rpm; |
380 | |
381 | switch (edata->sensor) { |
382 | case ASUS_SENSOR_FAN: |
383 | if (asus_get_fan_speed(sc, &rpm)) { |
384 | edata->value_cur = rpm; |
385 | edata->state = ENVSYS_SVALID; |
386 | } else |
387 | edata->state = ENVSYS_SINVALID; |
388 | break; |
389 | } |
390 | } |
391 | |
392 | static bool |
393 | asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) |
394 | { |
395 | ACPI_INTEGER rpmh, rpml; |
396 | ACPI_STATUS rv; |
397 | |
398 | rv = acpi_eval_integer(sc->sc_node->ad_handle, |
399 | ASUS_EC_METHOD_FAN_RPMH, &rpmh); |
400 | if (ACPI_FAILURE(rv)) |
401 | return false; |
402 | rv = acpi_eval_integer(sc->sc_node->ad_handle, |
403 | ASUS_EC_METHOD_FAN_RPML, &rpml); |
404 | if (ACPI_FAILURE(rv)) |
405 | return false; |
406 | |
407 | if (speed) |
408 | *speed = (rpmh << 8) | rpml; |
409 | return true; |
410 | } |
411 | |
412 | MODULE(MODULE_CLASS_DRIVER, asus, "sysmon_envsys,sysmon_power" ); |
413 | |
414 | #ifdef _MODULE |
415 | #include "ioconf.c" |
416 | #endif |
417 | |
418 | static int |
419 | asus_modcmd(modcmd_t cmd, void *aux) |
420 | { |
421 | int rv = 0; |
422 | |
423 | switch (cmd) { |
424 | |
425 | case MODULE_CMD_INIT: |
426 | |
427 | #ifdef _MODULE |
428 | rv = config_init_component(cfdriver_ioconf_asus, |
429 | cfattach_ioconf_asus, cfdata_ioconf_asus); |
430 | #endif |
431 | break; |
432 | |
433 | case MODULE_CMD_FINI: |
434 | |
435 | #ifdef _MODULE |
436 | rv = config_fini_component(cfdriver_ioconf_asus, |
437 | cfattach_ioconf_asus, cfdata_ioconf_asus); |
438 | #endif |
439 | break; |
440 | |
441 | default: |
442 | rv = ENOTTY; |
443 | } |
444 | |
445 | return rv; |
446 | } |
447 | |