asus_acpi.c revision 1.26
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 (at) 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
Indexes created Tue Sep 23 07:09:52 GMT 2025