1 /* $NetBSD: asus_acpi.c,v 1.27 2021/01/29 15:49:55 thorpej 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 1.27 2021/01/29 15:49:55 thorpej 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 struct device_compatible_entry compat_data[] = { 109 { .compat = "ASUS010" }, 110 DEVICE_COMPAT_EOL 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 return acpi_compatible_match(aa, compat_data); 119 } 120 121 static void 122 asus_attach(device_t parent, device_t self, void *opaque) 123 { 124 struct asus_softc *sc = device_private(self); 125 struct acpi_attach_args *aa = opaque; 126 127 sc->sc_dev = self; 128 sc->sc_node = aa->aa_node; 129 130 aprint_naive("\n"); 131 aprint_normal("\n"); 132 133 asus_init(self); 134 asus_sysctl_setup(sc); 135 136 sc->sc_smpsw_valid = true; 137 sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_name = 138 PSWITCH_HK_DISPLAY_CYCLE; 139 sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_type = 140 PSWITCH_TYPE_HOTKEY; 141 if (sysmon_pswitch_register(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE])) { 142 aprint_error_dev(self, "couldn't register with sysmon\n"); 143 sc->sc_smpsw_valid = false; 144 } 145 146 if (asus_get_fan_speed(sc, NULL) == false) 147 goto out; 148 149 sc->sc_sme = sysmon_envsys_create(); 150 151 strcpy(sc->sc_sensor[ASUS_SENSOR_FAN].desc, "fan"); 152 sc->sc_sensor[ASUS_SENSOR_FAN].units = ENVSYS_SFANRPM; 153 sc->sc_sensor[ASUS_SENSOR_FAN].state = ENVSYS_SINVALID; 154 sysmon_envsys_sensor_attach(sc->sc_sme, 155 &sc->sc_sensor[ASUS_SENSOR_FAN]); 156 157 sc->sc_sme->sme_name = device_xname(self); 158 sc->sc_sme->sme_cookie = sc; 159 sc->sc_sme->sme_refresh = asus_sensors_refresh; 160 sc->sc_sme->sme_flags = SME_POLL_ONLY; 161 162 if (sysmon_envsys_register(sc->sc_sme)) { 163 aprint_error_dev(self, "couldn't register with envsys\n"); 164 sysmon_envsys_destroy(sc->sc_sme); 165 sc->sc_sme = NULL; 166 } 167 168 out: 169 (void)pmf_device_register(self, asus_suspend, asus_resume); 170 (void)acpi_register_notify(sc->sc_node, asus_notify_handler); 171 } 172 173 static int 174 asus_detach(device_t self, int flags) 175 { 176 struct asus_softc *sc = device_private(self); 177 int i; 178 179 acpi_deregister_notify(sc->sc_node); 180 181 if (sc->sc_smpsw_valid != false) { 182 183 for (i = 0; i < ASUS_PSW_LAST; i++) 184 sysmon_pswitch_unregister(&sc->sc_smpsw[i]); 185 } 186 187 if (sc->sc_sme != NULL) 188 sysmon_envsys_unregister(sc->sc_sme); 189 190 if (sc->sc_log != NULL) 191 sysctl_teardown(&sc->sc_log); 192 193 pmf_device_deregister(self); 194 195 return 0; 196 } 197 198 static void 199 asus_notify_handler(ACPI_HANDLE hdl, uint32_t notify, void *opaque) 200 { 201 struct asus_softc *sc; 202 device_t self = opaque; 203 204 sc = device_private(self); 205 206 if (notify >= ASUS_NOTIFY_BrightnessLow && 207 notify <= ASUS_NOTIFY_BrightnessHigh) { 208 aprint_debug_dev(sc->sc_dev, "brightness %d percent\n", 209 (notify & 0xf) * 100 / 0xf); 210 return; 211 } 212 213 switch (notify) { 214 case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */ 215 case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */ 216 break; 217 case ASUS_NOTIFY_DisplayCycle: 218 if (sc->sc_smpsw_valid == false) 219 break; 220 sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE], 221 PSWITCH_EVENT_PRESSED); 222 break; 223 case ASUS_NOTIFY_VolumeMute: 224 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE); 225 break; 226 case ASUS_NOTIFY_VolumeDown: 227 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN); 228 break; 229 case ASUS_NOTIFY_VolumeUp: 230 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP); 231 break; 232 default: 233 aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n", notify); 234 break; 235 } 236 } 237 238 static void 239 asus_init(device_t self) 240 { 241 struct asus_softc *sc = device_private(self); 242 ACPI_INTEGER cfv; 243 ACPI_STATUS rv; 244 245 /* Disable ASL display switching. */ 246 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, "INIT", 0x40); 247 248 if (ACPI_FAILURE(rv)) 249 aprint_error_dev(self, "couldn't evaluate INIT: %s\n", 250 AcpiFormatException(rv)); 251 252 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_CFVG, &cfv); 253 254 if (ACPI_FAILURE(rv)) 255 return; 256 257 sc->sc_cfvnum = (cfv >> 8) & 0xff; 258 } 259 260 static bool 261 asus_suspend(device_t self, const pmf_qual_t *qual) 262 { 263 struct asus_softc *sc = device_private(self); 264 ACPI_INTEGER val = 0; 265 ACPI_STATUS rv; 266 267 /* Capture display brightness. */ 268 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, &val); 269 270 if (ACPI_FAILURE(rv) || val > INT32_MAX) 271 sc->sc_brightness = -1; 272 else 273 sc->sc_brightness = val; 274 275 return true; 276 } 277 278 static bool 279 asus_resume(device_t self, const pmf_qual_t *qual) 280 { 281 struct asus_softc *sc = device_private(self); 282 ACPI_STATUS rv; 283 284 asus_init(self); 285 286 if (sc->sc_brightness < 0) 287 return true; 288 289 /* Restore previous display brightness. */ 290 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, 291 sc->sc_brightness); 292 293 if (ACPI_FAILURE(rv)) 294 aprint_error_dev(self, "couldn't evaluate PBLS: %s\n", 295 AcpiFormatException(rv)); 296 297 return true; 298 } 299 300 static int 301 asus_sysctl_verify(SYSCTLFN_ARGS) 302 { 303 struct sysctlnode node; 304 struct asus_softc *sc; 305 ACPI_INTEGER cfv; 306 ACPI_STATUS rv; 307 int err, tmp; 308 309 node = *rnode; 310 sc = rnode->sysctl_data; 311 if (node.sysctl_num == sc->sc_cfv_mib) { 312 rv = acpi_eval_integer(sc->sc_node->ad_handle, 313 ASUS_METHOD_CFVG, &cfv); 314 if (ACPI_FAILURE(rv)) 315 return ENXIO; 316 tmp = cfv & 0xff; 317 node.sysctl_data = &tmp; 318 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 319 if (err || newp == NULL) 320 return err; 321 322 if (tmp < 0 || (uint64_t)tmp >= sc->sc_cfvnum) 323 return EINVAL; 324 325 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, 326 ASUS_METHOD_CFVS, tmp); 327 328 if (ACPI_FAILURE(rv)) 329 return ENXIO; 330 } 331 332 return 0; 333 } 334 335 static void 336 asus_sysctl_setup(struct asus_softc *sc) 337 { 338 const struct sysctlnode *node, *node_cfv, *node_ncfv; 339 int err, node_mib; 340 341 if (sc->sc_cfvnum == 0) 342 return; 343 344 err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, 345 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, 346 NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 347 if (err) 348 goto sysctl_err; 349 node_mib = node->sysctl_num; 350 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, 351 CTLFLAG_READONLY, CTLTYPE_QUAD, "ncfv", 352 SYSCTL_DESCR("Number of CPU frequency/voltage modes"), 353 NULL, 0, &sc->sc_cfvnum, 0, 354 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 355 if (err) 356 goto sysctl_err; 357 sc->sc_cfvnum_mib = node_ncfv->sysctl_num; 358 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, 359 CTLFLAG_READWRITE, CTLTYPE_INT, "cfv", 360 SYSCTL_DESCR("Current CPU frequency/voltage mode"), 361 asus_sysctl_verify, 0, (void *)sc, 0, 362 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 363 if (err) 364 goto sysctl_err; 365 sc->sc_cfv_mib = node_cfv->sysctl_num; 366 367 return; 368 sysctl_err: 369 aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n", err); 370 } 371 372 static void 373 asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 374 { 375 struct asus_softc *sc = sme->sme_cookie; 376 uint32_t rpm; 377 378 switch (edata->sensor) { 379 case ASUS_SENSOR_FAN: 380 if (asus_get_fan_speed(sc, &rpm)) { 381 edata->value_cur = rpm; 382 edata->state = ENVSYS_SVALID; 383 } else 384 edata->state = ENVSYS_SINVALID; 385 break; 386 } 387 } 388 389 static bool 390 asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) 391 { 392 ACPI_INTEGER rpmh, rpml; 393 ACPI_STATUS rv; 394 395 rv = acpi_eval_integer(sc->sc_node->ad_handle, 396 ASUS_EC_METHOD_FAN_RPMH, &rpmh); 397 if (ACPI_FAILURE(rv)) 398 return false; 399 rv = acpi_eval_integer(sc->sc_node->ad_handle, 400 ASUS_EC_METHOD_FAN_RPML, &rpml); 401 if (ACPI_FAILURE(rv)) 402 return false; 403 404 if (speed) 405 *speed = (rpmh << 8) | rpml; 406 return true; 407 } 408 409 MODULE(MODULE_CLASS_DRIVER, asus, "sysmon_envsys,sysmon_power"); 410 411 #ifdef _MODULE 412 #include "ioconf.c" 413 #endif 414 415 static int 416 asus_modcmd(modcmd_t cmd, void *aux) 417 { 418 int rv = 0; 419 420 switch (cmd) { 421 422 case MODULE_CMD_INIT: 423 424 #ifdef _MODULE 425 rv = config_init_component(cfdriver_ioconf_asus, 426 cfattach_ioconf_asus, cfdata_ioconf_asus); 427 #endif 428 break; 429 430 case MODULE_CMD_FINI: 431 432 #ifdef _MODULE 433 rv = config_fini_component(cfdriver_ioconf_asus, 434 cfattach_ioconf_asus, cfdata_ioconf_asus); 435 #endif 436 break; 437 438 default: 439 rv = ENOTTY; 440 } 441 442 return rv; 443 } 444
Indexes created Sun Sep 21 15:09:59 GMT 2025