asus_acpi.c revision 1.19
1 /* $NetBSD: asus_acpi.c,v 1.19 2010/04/14 19:27:28 jruoho 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 1.19 2010/04/14 19:27:28 jruoho Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/device.h> 34 #include <sys/sysctl.h> 35 #include <sys/systm.h> 36 37 #include <dev/acpi/acpireg.h> 38 #include <dev/acpi/acpivar.h> 39 40 #define _COMPONENT ACPI_RESOURCE_COMPONENT 41 ACPI_MODULE_NAME ("asus_acpi") 42 43 struct asus_softc { 44 device_t sc_dev; 45 struct acpi_devnode *sc_node; 46 47 #define ASUS_PSW_DISPLAY_CYCLE 0 48 #define ASUS_PSW_LAST 1 49 struct sysmon_pswitch sc_smpsw[ASUS_PSW_LAST]; 50 bool sc_smpsw_valid; 51 52 struct sysmon_envsys *sc_sme; 53 #define ASUS_SENSOR_FAN 0 54 #define ASUS_SENSOR_LAST 1 55 envsys_data_t sc_sensor[ASUS_SENSOR_LAST]; 56 57 int32_t sc_brightness; 58 ACPI_INTEGER sc_cfvnum; 59 60 struct sysctllog *sc_log; 61 int sc_cfv_mib; 62 int sc_cfvnum_mib; 63 }; 64 65 #define ASUS_NOTIFY_WirelessSwitch 0x10 66 #define ASUS_NOTIFY_BrightnessLow 0x20 67 #define ASUS_NOTIFY_BrightnessHigh 0x2f 68 #define ASUS_NOTIFY_DisplayCycle 0x30 69 #define ASUS_NOTIFY_WindowSwitch 0x12 /* XXXJDM ?? */ 70 #define ASUS_NOTIFY_VolumeMute 0x13 71 #define ASUS_NOTIFY_VolumeDown 0x14 72 #define ASUS_NOTIFY_VolumeUp 0x15 73 74 #define ASUS_METHOD_SDSP "SDSP" 75 #define ASUS_SDSP_LCD 0x01 76 #define ASUS_SDSP_CRT 0x02 77 #define ASUS_SDSP_TV 0x04 78 #define ASUS_SDSP_DVI 0x08 79 #define ASUS_SDSP_ALL \ 80 (ASUS_SDSP_LCD | ASUS_SDSP_CRT | ASUS_SDSP_TV | ASUS_SDSP_DVI) 81 #define ASUS_METHOD_PBLG "PBLG" 82 #define ASUS_METHOD_PBLS "PBLS" 83 #define ASUS_METHOD_CFVS "CFVS" 84 #define ASUS_METHOD_CFVG "CFVG" 85 86 #define ASUS_EC_METHOD_FAN_RPMH "\\_SB.PCI0.SBRG.EC0.SC05" 87 #define ASUS_EC_METHOD_FAN_RPML "\\_SB.PCI0.SBRG.EC0.SC06" 88 89 static int asus_match(device_t, cfdata_t, void *); 90 static void asus_attach(device_t, device_t, void *); 91 static int asus_detach(device_t, int); 92 93 static void asus_notify_handler(ACPI_HANDLE, uint32_t, void *); 94 95 static void asus_init(device_t); 96 static bool asus_suspend(device_t, const pmf_qual_t *); 97 static bool asus_resume(device_t, const pmf_qual_t *); 98 99 static void asus_sysctl_setup(struct asus_softc *); 100 101 static void asus_sensors_refresh(struct sysmon_envsys *, envsys_data_t *); 102 static bool asus_get_fan_speed(struct asus_softc *, uint32_t *); 103 104 CFATTACH_DECL_NEW(asus, sizeof(struct asus_softc), 105 asus_match, asus_attach, asus_detach, NULL); 106 107 static const char * const asus_ids[] = { 108 "ASUS010", 109 NULL 110 }; 111 112 static int 113 asus_match(device_t parent, cfdata_t match, void *opaque) 114 { 115 struct acpi_attach_args *aa = opaque; 116 117 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 118 return 0; 119 120 return acpi_match_hid(aa->aa_node->ad_devinfo, asus_ids); 121 } 122 123 static void 124 asus_attach(device_t parent, device_t self, void *opaque) 125 { 126 struct asus_softc *sc = device_private(self); 127 struct acpi_attach_args *aa = opaque; 128 ACPI_STATUS rv; 129 130 sc->sc_node = aa->aa_node; 131 sc->sc_dev = self; 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 nosensors; 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 sysmon_envsys_sensor_attach(sc->sc_sme, 157 &sc->sc_sensor[ASUS_SENSOR_FAN]); 158 159 sc->sc_sme->sme_name = device_xname(self); 160 sc->sc_sme->sme_cookie = sc; 161 sc->sc_sme->sme_refresh = asus_sensors_refresh; 162 sc->sc_sme->sme_flags = SME_POLL_ONLY; 163 164 if (sysmon_envsys_register(sc->sc_sme)) { 165 aprint_error_dev(self, "couldn't register with envsys\n"); 166 sysmon_envsys_destroy(sc->sc_sme); 167 sc->sc_sme = NULL; 168 } 169 nosensors: 170 171 rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle, ACPI_ALL_NOTIFY, 172 asus_notify_handler, sc); 173 if (ACPI_FAILURE(rv)) 174 aprint_error_dev(self, "couldn't install notify handler: %s\n", 175 AcpiFormatException(rv)); 176 177 if (!pmf_device_register(self, asus_suspend, asus_resume)) 178 aprint_error_dev(self, "couldn't establish power handler\n"); 179 } 180 181 static int 182 asus_detach(device_t self, int flags) 183 { 184 struct asus_softc *sc = device_private(self); 185 ACPI_STATUS rv; 186 int i; 187 188 rv = AcpiRemoveNotifyHandler(sc->sc_node->ad_handle, 189 ACPI_ALL_NOTIFY, asus_notify_handler); 190 191 if (ACPI_FAILURE(rv)) 192 return EBUSY; 193 194 if (sc->sc_smpsw_valid) 195 for (i = 0; i < ASUS_PSW_LAST; i++) 196 sysmon_pswitch_unregister(&sc->sc_smpsw[i]); 197 198 if (sc->sc_sme) 199 sysmon_envsys_unregister(sc->sc_sme); 200 if (sc->sc_log) 201 sysctl_teardown(&sc->sc_log); 202 pmf_device_deregister(self); 203 204 return 0; 205 } 206 207 static void 208 asus_notify_handler(ACPI_HANDLE hdl, uint32_t notify, void *opaque) 209 { 210 struct asus_softc *sc = opaque; 211 212 if (notify >= ASUS_NOTIFY_BrightnessLow && 213 notify <= ASUS_NOTIFY_BrightnessHigh) { 214 aprint_debug_dev(sc->sc_dev, "brightness %d percent\n", 215 (notify & 0xf) * 100 / 0xf); 216 return; 217 } 218 219 switch (notify) { 220 case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */ 221 case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */ 222 break; 223 case ASUS_NOTIFY_DisplayCycle: 224 if (sc->sc_smpsw_valid == false) 225 break; 226 sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE], 227 PSWITCH_EVENT_PRESSED); 228 break; 229 case ASUS_NOTIFY_VolumeMute: 230 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE); 231 break; 232 case ASUS_NOTIFY_VolumeDown: 233 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN); 234 break; 235 case ASUS_NOTIFY_VolumeUp: 236 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP); 237 break; 238 default: 239 aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n", notify); 240 break; 241 } 242 } 243 244 static void 245 asus_init(device_t self) 246 { 247 struct asus_softc *sc = device_private(self); 248 ACPI_INTEGER cfv; 249 ACPI_STATUS rv; 250 251 /* Disable ASL display switching. */ 252 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, "INIT", 0x40); 253 254 if (ACPI_FAILURE(rv)) 255 aprint_error_dev(self, "couldn't evaluate INIT: %s\n", 256 AcpiFormatException(rv)); 257 258 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_CFVG, &cfv); 259 260 if (ACPI_FAILURE(rv)) 261 return; 262 263 sc->sc_cfvnum = (cfv >> 8) & 0xff; 264 } 265 266 static bool 267 asus_suspend(device_t self, const pmf_qual_t *qual) 268 { 269 struct asus_softc *sc = device_private(self); 270 ACPI_INTEGER val = 0; 271 ACPI_STATUS rv; 272 273 /* Capture display brightness. */ 274 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, &val); 275 276 if (ACPI_FAILURE(rv) || val > INT32_MAX) 277 sc->sc_brightness = -1; 278 else 279 sc->sc_brightness = val; 280 281 return true; 282 } 283 284 static bool 285 asus_resume(device_t self, const pmf_qual_t *qual) 286 { 287 struct asus_softc *sc = device_private(self); 288 ACPI_STATUS rv; 289 290 asus_init(self); 291 292 if (sc->sc_brightness < 0) 293 return true; 294 295 /* Restore previous display brightness. */ 296 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, 297 sc->sc_brightness); 298 299 if (ACPI_FAILURE(rv)) 300 aprint_error_dev(self, "couldn't evaluate PBLS: %s\n", 301 AcpiFormatException(rv)); 302 303 return true; 304 } 305 306 static int 307 asus_sysctl_verify(SYSCTLFN_ARGS) 308 { 309 struct sysctlnode node; 310 struct asus_softc *sc; 311 ACPI_INTEGER cfv; 312 ACPI_STATUS rv; 313 int err, tmp; 314 315 node = *rnode; 316 sc = rnode->sysctl_data; 317 if (node.sysctl_num == sc->sc_cfv_mib) { 318 rv = acpi_eval_integer(sc->sc_node->ad_handle, 319 ASUS_METHOD_CFVG, &cfv); 320 if (ACPI_FAILURE(rv)) 321 return ENXIO; 322 tmp = cfv & 0xff; 323 node.sysctl_data = &tmp; 324 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 325 if (err || newp == NULL) 326 return err; 327 328 if (tmp < 0 || tmp >= sc->sc_cfvnum) 329 return EINVAL; 330 331 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, 332 ASUS_METHOD_CFVS, tmp); 333 334 if (ACPI_FAILURE(rv)) 335 return ENXIO; 336 } 337 338 return 0; 339 } 340 341 static void 342 asus_sysctl_setup(struct asus_softc *sc) 343 { 344 const struct sysctlnode *node, *node_cfv, *node_ncfv; 345 int err, node_mib; 346 347 if (sc->sc_cfvnum == 0) 348 return; 349 350 err = sysctl_createv(&sc->sc_log, 0, NULL, NULL, 0, 351 CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL); 352 if (err) 353 goto sysctl_err; 354 err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, 355 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, 356 NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 357 if (err) 358 goto sysctl_err; 359 node_mib = node->sysctl_num; 360 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, 361 CTLFLAG_READONLY, CTLTYPE_INT, "ncfv", 362 SYSCTL_DESCR("Number of CPU frequency/voltage modes"), 363 NULL, 0, &sc->sc_cfvnum, 0, 364 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 365 if (err) 366 goto sysctl_err; 367 sc->sc_cfvnum_mib = node_ncfv->sysctl_num; 368 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, 369 CTLFLAG_READWRITE, CTLTYPE_INT, "cfv", 370 SYSCTL_DESCR("Current CPU frequency/voltage mode"), 371 asus_sysctl_verify, 0, sc, 0, 372 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 373 if (err) 374 goto sysctl_err; 375 sc->sc_cfv_mib = node_cfv->sysctl_num; 376 377 return; 378 sysctl_err: 379 aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n", err); 380 } 381 382 static void 383 asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 384 { 385 struct asus_softc *sc = sme->sme_cookie; 386 uint32_t rpm; 387 388 switch (edata->sensor) { 389 case ASUS_SENSOR_FAN: 390 if (asus_get_fan_speed(sc, &rpm)) { 391 edata->value_cur = rpm; 392 edata->state = ENVSYS_SVALID; 393 } else 394 edata->state = ENVSYS_SINVALID; 395 break; 396 } 397 } 398 399 static bool 400 asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) 401 { 402 ACPI_INTEGER rpmh, rpml; 403 ACPI_STATUS rv; 404 405 rv = acpi_eval_integer(sc->sc_node->ad_handle, 406 ASUS_EC_METHOD_FAN_RPMH, &rpmh); 407 if (ACPI_FAILURE(rv)) 408 return false; 409 rv = acpi_eval_integer(sc->sc_node->ad_handle, 410 ASUS_EC_METHOD_FAN_RPML, &rpml); 411 if (ACPI_FAILURE(rv)) 412 return false; 413 414 if (speed) 415 *speed = (rpmh << 8) | rpml; 416 return true; 417 } 418
Indexes created Wed Sep 24 05:09:52 GMT 2025