asus_acpi.c revision 1.9
1 /* $NetBSD: asus_acpi.c,v 1.9 2009/08/03 16:33:55 jmcneill 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 1.9 2009/08/03 16:33:55 jmcneill 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 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 ACPI_INTEGER 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, void *); 94 95 static void asus_init(device_t); 96 static bool asus_suspend(device_t PMF_FN_PROTO); 97 static bool asus_resume(device_t PMF_FN_PROTO); 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; 162 163 if (sysmon_envsys_register(sc->sc_sme)) { 164 aprint_error_dev(self, "couldn't register with envsys\n"); 165 sysmon_envsys_destroy(sc->sc_sme); 166 sc->sc_sme = NULL; 167 } 168 nosensors: 169 170 rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle, ACPI_ALL_NOTIFY, 171 asus_notify_handler, sc); 172 if (ACPI_FAILURE(rv)) 173 aprint_error_dev(self, "couldn't install notify handler: %s\n", 174 AcpiFormatException(rv)); 175 176 if (!pmf_device_register(self, asus_suspend, asus_resume)) 177 aprint_error_dev(self, "couldn't establish power handler\n"); 178 } 179 180 static int 181 asus_detach(device_t self, int flags) 182 { 183 struct asus_softc *sc = device_private(self); 184 int i; 185 186 if (sc->sc_smpsw_valid) 187 for (i = 0; i < ASUS_PSW_LAST; i++) 188 sysmon_pswitch_unregister(&sc->sc_smpsw[i]); 189 190 if (sc->sc_sme) 191 sysmon_envsys_unregister(sc->sc_sme); 192 if (sc->sc_log) 193 sysctl_teardown(&sc->sc_log); 194 pmf_device_deregister(self); 195 196 return 0; 197 } 198 199 static void 200 asus_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque) 201 { 202 struct asus_softc *sc = opaque; 203 204 if (notify >= ASUS_NOTIFY_BrightnessLow && 205 notify <= ASUS_NOTIFY_BrightnessHigh) { 206 aprint_debug_dev(sc->sc_dev, "brightness %d percent\n", 207 (notify & 0xf) * 100 / 0xf); 208 return; 209 } 210 211 switch (notify) { 212 case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */ 213 case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */ 214 break; 215 case ASUS_NOTIFY_DisplayCycle: 216 if (sc->sc_smpsw_valid == false) 217 break; 218 sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE], 219 PSWITCH_EVENT_PRESSED); 220 break; 221 case ASUS_NOTIFY_VolumeMute: 222 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE); 223 break; 224 case ASUS_NOTIFY_VolumeDown: 225 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN); 226 break; 227 case ASUS_NOTIFY_VolumeUp: 228 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP); 229 break; 230 default: 231 aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n", notify); 232 break; 233 } 234 } 235 236 static void 237 asus_init(device_t self) 238 { 239 struct asus_softc *sc = device_private(self); 240 ACPI_STATUS rv; 241 ACPI_OBJECT param; 242 ACPI_OBJECT_LIST params; 243 ACPI_BUFFER ret; 244 ACPI_INTEGER cfv; 245 246 ret.Pointer = NULL; 247 ret.Length = ACPI_ALLOCATE_BUFFER; 248 param.Type = ACPI_TYPE_INTEGER; 249 param.Integer.Value = 0x40; /* disable ASL display switching */ 250 params.Pointer = ¶m; 251 params.Count = 1; 252 253 rv = AcpiEvaluateObject(sc->sc_node->ad_handle, "INIT", 254 ¶ms, &ret); 255 if (ACPI_FAILURE(rv)) 256 aprint_error_dev(self, "couldn't evaluate INIT: %s\n", 257 AcpiFormatException(rv)); 258 259 if (ret.Pointer) 260 AcpiOsFree(ret.Pointer); 261 262 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_CFVG, &cfv); 263 if (ACPI_FAILURE(rv)) 264 return; 265 266 sc->sc_cfvnum = (cfv >> 8) & 0xff; 267 } 268 269 static bool 270 asus_suspend(device_t self PMF_FN_ARGS) 271 { 272 struct asus_softc *sc = device_private(self); 273 ACPI_STATUS rv; 274 275 /* capture display brightness when we're sleeping */ 276 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, 277 &sc->sc_brightness); 278 if (ACPI_FAILURE(rv)) 279 aprint_error_dev(sc->sc_dev, "couldn't evaluate PBLG: %s\n", 280 AcpiFormatException(rv)); 281 282 return true; 283 } 284 285 static bool 286 asus_resume(device_t self PMF_FN_ARGS) 287 { 288 struct asus_softc *sc = device_private(self); 289 ACPI_STATUS rv; 290 ACPI_OBJECT param; 291 ACPI_OBJECT_LIST params; 292 ACPI_BUFFER ret; 293 294 asus_init(self); 295 296 /* restore previous display brightness */ 297 ret.Pointer = NULL; 298 ret.Length = ACPI_ALLOCATE_BUFFER; 299 param.Type = ACPI_TYPE_INTEGER; 300 param.Integer.Value = sc->sc_brightness; 301 params.Pointer = ¶m; 302 params.Count = 1; 303 304 rv = AcpiEvaluateObject(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, 305 ¶ms, &ret); 306 if (ACPI_FAILURE(rv)) 307 aprint_error_dev(self, "couldn't evaluate PBLS: %s\n", 308 AcpiFormatException(rv)); 309 310 return true; 311 } 312 313 static int 314 asus_sysctl_verify(SYSCTLFN_ARGS) 315 { 316 struct sysctlnode node; 317 struct asus_softc *sc; 318 ACPI_STATUS rv; 319 ACPI_INTEGER cfv; 320 ACPI_OBJECT param, retval; 321 ACPI_OBJECT_LIST params; 322 ACPI_BUFFER ret; 323 int err, tmp; 324 325 node = *rnode; 326 sc = rnode->sysctl_data; 327 if (node.sysctl_num == sc->sc_cfv_mib) { 328 rv = acpi_eval_integer(sc->sc_node->ad_handle, 329 ASUS_METHOD_CFVG, &cfv); 330 if (ACPI_FAILURE(rv)) 331 return ENXIO; 332 tmp = cfv & 0xff; 333 node.sysctl_data = &tmp; 334 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 335 if (err || newp == NULL) 336 return err; 337 338 if (tmp < 0 || tmp >= sc->sc_cfvnum) 339 return EINVAL; 340 341 ret.Pointer = &retval; 342 ret.Length = sizeof(retval); 343 param.Type = ACPI_TYPE_INTEGER; 344 param.Integer.Value = tmp; 345 params.Pointer = ¶m; 346 params.Count = 1; 347 348 rv = AcpiEvaluateObject(sc->sc_node->ad_handle, 349 ASUS_METHOD_CFVS, ¶ms, &ret); 350 if (ACPI_FAILURE(rv)) 351 return ENXIO; 352 } 353 354 return 0; 355 } 356 357 static void 358 asus_sysctl_setup(struct asus_softc *sc) 359 { 360 const struct sysctlnode *node, *node_cfv, *node_ncfv; 361 int err, node_mib; 362 363 if (sc->sc_cfvnum == 0) 364 return; 365 366 err = sysctl_createv(&sc->sc_log, 0, NULL, NULL, 0, 367 CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL); 368 if (err) 369 goto sysctl_err; 370 err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, 371 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, 372 NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 373 if (err) 374 goto sysctl_err; 375 node_mib = node->sysctl_num; 376 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, 377 CTLFLAG_READONLY, CTLTYPE_INT, "ncfv", 378 SYSCTL_DESCR("Number of CPU frequency/voltage modes"), 379 NULL, 0, &sc->sc_cfvnum, 0, 380 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 381 if (err) 382 goto sysctl_err; 383 sc->sc_cfvnum_mib = node_ncfv->sysctl_num; 384 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, 385 CTLFLAG_READWRITE, CTLTYPE_INT, "cfv", 386 SYSCTL_DESCR("Current CPU frequency/voltage mode"), 387 asus_sysctl_verify, 0, sc, 0, 388 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 389 if (err) 390 goto sysctl_err; 391 sc->sc_cfv_mib = node_cfv->sysctl_num; 392 393 return; 394 sysctl_err: 395 aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n", err); 396 } 397 398 static void 399 asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 400 { 401 struct asus_softc *sc = sme->sme_cookie; 402 uint32_t rpm; 403 404 switch (edata->sensor) { 405 case ASUS_SENSOR_FAN: 406 if (asus_get_fan_speed(sc, &rpm)) { 407 edata->value_cur = rpm; 408 edata->state = ENVSYS_SVALID; 409 } else 410 edata->state = ENVSYS_SINVALID; 411 break; 412 } 413 } 414 415 static bool 416 asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) 417 { 418 ACPI_INTEGER rpmh, rpml; 419 ACPI_STATUS rv; 420 421 rv = acpi_eval_integer(sc->sc_node->ad_handle, 422 ASUS_EC_METHOD_FAN_RPMH, &rpmh); 423 if (ACPI_FAILURE(rv)) 424 return false; 425 rv = acpi_eval_integer(sc->sc_node->ad_handle, 426 ASUS_EC_METHOD_FAN_RPML, &rpml); 427 if (ACPI_FAILURE(rv)) 428 return false; 429 430 if (speed) 431 *speed = (rpmh << 8) | rpml; 432 return true; 433 } 434
Indexes created Tue Sep 23 07:09:52 GMT 2025