asus_acpi.c revision 1.17
1 /* $NetBSD: asus_acpi.c,v 1.17 2010/02/24 22:37:56 dyoung 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 1.17 2010/02/24 22:37:56 dyoung Exp $"); 31 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/malloc.h> 35 #include <sys/buf.h> 36 #include <sys/callout.h> 37 #include <sys/kernel.h> 38 #include <sys/device.h> 39 #include <sys/sysctl.h> 40 41 #include <dev/acpi/acpivar.h> 42 #include <dev/acpi/acpireg.h> 43 44 #define _COMPONENT ACPI_RESOURCE_COMPONENT 45 ACPI_MODULE_NAME ("asus_acpi") 46 47 struct asus_softc { 48 device_t sc_dev; 49 struct acpi_devnode *sc_node; 50 51 #define ASUS_PSW_DISPLAY_CYCLE 0 52 #define ASUS_PSW_LAST 1 53 struct sysmon_pswitch sc_smpsw[ASUS_PSW_LAST]; 54 bool sc_smpsw_valid; 55 56 struct sysmon_envsys *sc_sme; 57 #define ASUS_SENSOR_FAN 0 58 #define ASUS_SENSOR_LAST 1 59 envsys_data_t sc_sensor[ASUS_SENSOR_LAST]; 60 61 int32_t sc_brightness; 62 ACPI_INTEGER sc_cfvnum; 63 64 struct sysctllog *sc_log; 65 int sc_cfv_mib; 66 int sc_cfvnum_mib; 67 }; 68 69 #define ASUS_NOTIFY_WirelessSwitch 0x10 70 #define ASUS_NOTIFY_BrightnessLow 0x20 71 #define ASUS_NOTIFY_BrightnessHigh 0x2f 72 #define ASUS_NOTIFY_DisplayCycle 0x30 73 #define ASUS_NOTIFY_WindowSwitch 0x12 /* XXXJDM ?? */ 74 #define ASUS_NOTIFY_VolumeMute 0x13 75 #define ASUS_NOTIFY_VolumeDown 0x14 76 #define ASUS_NOTIFY_VolumeUp 0x15 77 78 #define ASUS_METHOD_SDSP "SDSP" 79 #define ASUS_SDSP_LCD 0x01 80 #define ASUS_SDSP_CRT 0x02 81 #define ASUS_SDSP_TV 0x04 82 #define ASUS_SDSP_DVI 0x08 83 #define ASUS_SDSP_ALL \ 84 (ASUS_SDSP_LCD | ASUS_SDSP_CRT | ASUS_SDSP_TV | ASUS_SDSP_DVI) 85 #define ASUS_METHOD_PBLG "PBLG" 86 #define ASUS_METHOD_PBLS "PBLS" 87 #define ASUS_METHOD_CFVS "CFVS" 88 #define ASUS_METHOD_CFVG "CFVG" 89 90 #define ASUS_EC_METHOD_FAN_RPMH "\\_SB.PCI0.SBRG.EC0.SC05" 91 #define ASUS_EC_METHOD_FAN_RPML "\\_SB.PCI0.SBRG.EC0.SC06" 92 93 static int asus_match(device_t, cfdata_t, void *); 94 static void asus_attach(device_t, device_t, void *); 95 static int asus_detach(device_t, int); 96 97 static void asus_notify_handler(ACPI_HANDLE, UINT32, void *); 98 99 static void asus_init(device_t); 100 static bool asus_suspend(device_t, const pmf_qual_t *); 101 static bool asus_resume(device_t, const pmf_qual_t *); 102 103 static void asus_sysctl_setup(struct asus_softc *); 104 105 static void asus_sensors_refresh(struct sysmon_envsys *, envsys_data_t *); 106 static bool asus_get_fan_speed(struct asus_softc *, uint32_t *); 107 108 CFATTACH_DECL_NEW(asus, sizeof(struct asus_softc), 109 asus_match, asus_attach, asus_detach, NULL); 110 111 static const char * const asus_ids[] = { 112 "ASUS010", 113 NULL 114 }; 115 116 static int 117 asus_match(device_t parent, cfdata_t match, void *opaque) 118 { 119 struct acpi_attach_args *aa = opaque; 120 121 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 122 return 0; 123 124 return acpi_match_hid(aa->aa_node->ad_devinfo, asus_ids); 125 } 126 127 static void 128 asus_attach(device_t parent, device_t self, void *opaque) 129 { 130 struct asus_softc *sc = device_private(self); 131 struct acpi_attach_args *aa = opaque; 132 ACPI_STATUS rv; 133 134 sc->sc_node = aa->aa_node; 135 sc->sc_dev = self; 136 137 aprint_naive("\n"); 138 aprint_normal("\n"); 139 140 asus_init(self); 141 asus_sysctl_setup(sc); 142 143 sc->sc_smpsw_valid = true; 144 sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_name = 145 PSWITCH_HK_DISPLAY_CYCLE; 146 sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_type = 147 PSWITCH_TYPE_HOTKEY; 148 if (sysmon_pswitch_register(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE])) { 149 aprint_error_dev(self, "couldn't register with sysmon\n"); 150 sc->sc_smpsw_valid = false; 151 } 152 153 if (asus_get_fan_speed(sc, NULL) == false) 154 goto nosensors; 155 156 sc->sc_sme = sysmon_envsys_create(); 157 158 strcpy(sc->sc_sensor[ASUS_SENSOR_FAN].desc, "fan"); 159 sc->sc_sensor[ASUS_SENSOR_FAN].units = ENVSYS_SFANRPM; 160 sysmon_envsys_sensor_attach(sc->sc_sme, 161 &sc->sc_sensor[ASUS_SENSOR_FAN]); 162 163 sc->sc_sme->sme_name = device_xname(self); 164 sc->sc_sme->sme_cookie = sc; 165 sc->sc_sme->sme_refresh = asus_sensors_refresh; 166 sc->sc_sme->sme_flags = SME_POLL_ONLY; 167 168 if (sysmon_envsys_register(sc->sc_sme)) { 169 aprint_error_dev(self, "couldn't register with envsys\n"); 170 sysmon_envsys_destroy(sc->sc_sme); 171 sc->sc_sme = NULL; 172 } 173 nosensors: 174 175 rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle, ACPI_ALL_NOTIFY, 176 asus_notify_handler, sc); 177 if (ACPI_FAILURE(rv)) 178 aprint_error_dev(self, "couldn't install notify handler: %s\n", 179 AcpiFormatException(rv)); 180 181 if (!pmf_device_register(self, asus_suspend, asus_resume)) 182 aprint_error_dev(self, "couldn't establish power handler\n"); 183 } 184 185 static int 186 asus_detach(device_t self, int flags) 187 { 188 struct asus_softc *sc = device_private(self); 189 ACPI_STATUS rv; 190 int i; 191 192 rv = AcpiRemoveNotifyHandler(sc->sc_node->ad_handle, 193 ACPI_ALL_NOTIFY, asus_notify_handler); 194 195 if (ACPI_FAILURE(rv)) 196 return EBUSY; 197 198 if (sc->sc_smpsw_valid) 199 for (i = 0; i < ASUS_PSW_LAST; i++) 200 sysmon_pswitch_unregister(&sc->sc_smpsw[i]); 201 202 if (sc->sc_sme) 203 sysmon_envsys_unregister(sc->sc_sme); 204 if (sc->sc_log) 205 sysctl_teardown(&sc->sc_log); 206 pmf_device_deregister(self); 207 208 return 0; 209 } 210 211 static void 212 asus_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque) 213 { 214 struct asus_softc *sc = opaque; 215 216 if (notify >= ASUS_NOTIFY_BrightnessLow && 217 notify <= ASUS_NOTIFY_BrightnessHigh) { 218 aprint_debug_dev(sc->sc_dev, "brightness %d percent\n", 219 (notify & 0xf) * 100 / 0xf); 220 return; 221 } 222 223 switch (notify) { 224 case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */ 225 case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */ 226 break; 227 case ASUS_NOTIFY_DisplayCycle: 228 if (sc->sc_smpsw_valid == false) 229 break; 230 sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE], 231 PSWITCH_EVENT_PRESSED); 232 break; 233 case ASUS_NOTIFY_VolumeMute: 234 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE); 235 break; 236 case ASUS_NOTIFY_VolumeDown: 237 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN); 238 break; 239 case ASUS_NOTIFY_VolumeUp: 240 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP); 241 break; 242 default: 243 aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n", notify); 244 break; 245 } 246 } 247 248 static void 249 asus_init(device_t self) 250 { 251 struct asus_softc *sc = device_private(self); 252 ACPI_INTEGER cfv; 253 ACPI_STATUS rv; 254 255 /* Disable ASL display switching. */ 256 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, "INIT", 0x40); 257 258 if (ACPI_FAILURE(rv)) 259 aprint_error_dev(self, "couldn't evaluate INIT: %s\n", 260 AcpiFormatException(rv)); 261 262 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_CFVG, &cfv); 263 264 if (ACPI_FAILURE(rv)) 265 return; 266 267 sc->sc_cfvnum = (cfv >> 8) & 0xff; 268 } 269 270 static bool 271 asus_suspend(device_t self, const pmf_qual_t *qual) 272 { 273 struct asus_softc *sc = device_private(self); 274 ACPI_INTEGER val = 0; 275 ACPI_STATUS rv; 276 277 /* Capture display brightness. */ 278 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, &val); 279 280 if (ACPI_FAILURE(rv) || val > INT32_MAX) 281 sc->sc_brightness = -1; 282 else 283 sc->sc_brightness = val; 284 285 return true; 286 } 287 288 static bool 289 asus_resume(device_t self, const pmf_qual_t *qual) 290 { 291 struct asus_softc *sc = device_private(self); 292 ACPI_STATUS rv; 293 294 asus_init(self); 295 296 if (sc->sc_brightness < 0) 297 return true; 298 299 /* Restore previous display brightness. */ 300 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, 301 sc->sc_brightness); 302 303 if (ACPI_FAILURE(rv)) 304 aprint_error_dev(self, "couldn't evaluate PBLS: %s\n", 305 AcpiFormatException(rv)); 306 307 return true; 308 } 309 310 static int 311 asus_sysctl_verify(SYSCTLFN_ARGS) 312 { 313 struct sysctlnode node; 314 struct asus_softc *sc; 315 ACPI_INTEGER cfv; 316 ACPI_STATUS rv; 317 int err, tmp; 318 319 node = *rnode; 320 sc = rnode->sysctl_data; 321 if (node.sysctl_num == sc->sc_cfv_mib) { 322 rv = acpi_eval_integer(sc->sc_node->ad_handle, 323 ASUS_METHOD_CFVG, &cfv); 324 if (ACPI_FAILURE(rv)) 325 return ENXIO; 326 tmp = cfv & 0xff; 327 node.sysctl_data = &tmp; 328 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 329 if (err || newp == NULL) 330 return err; 331 332 if (tmp < 0 || tmp >= sc->sc_cfvnum) 333 return EINVAL; 334 335 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, 336 ASUS_METHOD_CFVS, tmp); 337 338 if (ACPI_FAILURE(rv)) 339 return ENXIO; 340 } 341 342 return 0; 343 } 344 345 static void 346 asus_sysctl_setup(struct asus_softc *sc) 347 { 348 const struct sysctlnode *node, *node_cfv, *node_ncfv; 349 int err, node_mib; 350 351 if (sc->sc_cfvnum == 0) 352 return; 353 354 err = sysctl_createv(&sc->sc_log, 0, NULL, NULL, 0, 355 CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL); 356 if (err) 357 goto sysctl_err; 358 err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, 359 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, 360 NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 361 if (err) 362 goto sysctl_err; 363 node_mib = node->sysctl_num; 364 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, 365 CTLFLAG_READONLY, CTLTYPE_INT, "ncfv", 366 SYSCTL_DESCR("Number of CPU frequency/voltage modes"), 367 NULL, 0, &sc->sc_cfvnum, 0, 368 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 369 if (err) 370 goto sysctl_err; 371 sc->sc_cfvnum_mib = node_ncfv->sysctl_num; 372 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, 373 CTLFLAG_READWRITE, CTLTYPE_INT, "cfv", 374 SYSCTL_DESCR("Current CPU frequency/voltage mode"), 375 asus_sysctl_verify, 0, sc, 0, 376 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 377 if (err) 378 goto sysctl_err; 379 sc->sc_cfv_mib = node_cfv->sysctl_num; 380 381 return; 382 sysctl_err: 383 aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n", err); 384 } 385 386 static void 387 asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 388 { 389 struct asus_softc *sc = sme->sme_cookie; 390 uint32_t rpm; 391 392 switch (edata->sensor) { 393 case ASUS_SENSOR_FAN: 394 if (asus_get_fan_speed(sc, &rpm)) { 395 edata->value_cur = rpm; 396 edata->state = ENVSYS_SVALID; 397 } else 398 edata->state = ENVSYS_SINVALID; 399 break; 400 } 401 } 402 403 static bool 404 asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) 405 { 406 ACPI_INTEGER rpmh, rpml; 407 ACPI_STATUS rv; 408 409 rv = acpi_eval_integer(sc->sc_node->ad_handle, 410 ASUS_EC_METHOD_FAN_RPMH, &rpmh); 411 if (ACPI_FAILURE(rv)) 412 return false; 413 rv = acpi_eval_integer(sc->sc_node->ad_handle, 414 ASUS_EC_METHOD_FAN_RPML, &rpml); 415 if (ACPI_FAILURE(rv)) 416 return false; 417 418 if (speed) 419 *speed = (rpmh << 8) | rpml; 420 return true; 421 } 422
Indexes created Mon Sep 22 21:09:42 GMT 2025