asus_acpi.c revision 1.20
1 /* $NetBSD: asus_acpi.c,v 1.20 2010/04/15 07:02:24 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 1.20 2010/04/15 07:02:24 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; 128 129 sc->sc_dev = self; 130 sc->sc_node = aa->aa_node; 131 132 aprint_naive("\n"); 133 aprint_normal("\n"); 134 135 asus_init(self); 136 asus_sysctl_setup(sc); 137 138 sc->sc_smpsw_valid = true; 139 sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_name = 140 PSWITCH_HK_DISPLAY_CYCLE; 141 sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE].smpsw_type = 142 PSWITCH_TYPE_HOTKEY; 143 if (sysmon_pswitch_register(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE])) { 144 aprint_error_dev(self, "couldn't register with sysmon\n"); 145 sc->sc_smpsw_valid = false; 146 } 147 148 if (asus_get_fan_speed(sc, NULL) == false) 149 goto out; 150 151 sc->sc_sme = sysmon_envsys_create(); 152 153 strcpy(sc->sc_sensor[ASUS_SENSOR_FAN].desc, "fan"); 154 sc->sc_sensor[ASUS_SENSOR_FAN].units = ENVSYS_SFANRPM; 155 sysmon_envsys_sensor_attach(sc->sc_sme, 156 &sc->sc_sensor[ASUS_SENSOR_FAN]); 157 158 sc->sc_sme->sme_name = device_xname(self); 159 sc->sc_sme->sme_cookie = sc; 160 sc->sc_sme->sme_refresh = asus_sensors_refresh; 161 sc->sc_sme->sme_flags = SME_POLL_ONLY; 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 } 168 169 out: 170 (void)pmf_device_register(self, asus_suspend, asus_resume); 171 (void)acpi_register_notify(sc->sc_node, asus_notify_handler); 172 } 173 174 static int 175 asus_detach(device_t self, int flags) 176 { 177 struct asus_softc *sc = device_private(self); 178 int i; 179 180 acpi_deregister_notify(sc->sc_node); 181 182 if (sc->sc_smpsw_valid != false) { 183 184 for (i = 0; i < ASUS_PSW_LAST; i++) 185 sysmon_pswitch_unregister(&sc->sc_smpsw[i]); 186 } 187 188 if (sc->sc_sme != NULL) 189 sysmon_envsys_unregister(sc->sc_sme); 190 191 if (sc->sc_log != NULL) 192 sysctl_teardown(&sc->sc_log); 193 194 pmf_device_deregister(self); 195 196 return 0; 197 } 198 199 static void 200 asus_notify_handler(ACPI_HANDLE hdl, uint32_t notify, void *opaque) 201 { 202 struct asus_softc *sc; 203 device_t self = opaque; 204 205 sc = device_private(self); 206 207 if (notify >= ASUS_NOTIFY_BrightnessLow && 208 notify <= ASUS_NOTIFY_BrightnessHigh) { 209 aprint_debug_dev(sc->sc_dev, "brightness %d percent\n", 210 (notify & 0xf) * 100 / 0xf); 211 return; 212 } 213 214 switch (notify) { 215 case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */ 216 case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */ 217 break; 218 case ASUS_NOTIFY_DisplayCycle: 219 if (sc->sc_smpsw_valid == false) 220 break; 221 sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE], 222 PSWITCH_EVENT_PRESSED); 223 break; 224 case ASUS_NOTIFY_VolumeMute: 225 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE); 226 break; 227 case ASUS_NOTIFY_VolumeDown: 228 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN); 229 break; 230 case ASUS_NOTIFY_VolumeUp: 231 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP); 232 break; 233 default: 234 aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n", notify); 235 break; 236 } 237 } 238 239 static void 240 asus_init(device_t self) 241 { 242 struct asus_softc *sc = device_private(self); 243 ACPI_INTEGER cfv; 244 ACPI_STATUS rv; 245 246 /* Disable ASL display switching. */ 247 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, "INIT", 0x40); 248 249 if (ACPI_FAILURE(rv)) 250 aprint_error_dev(self, "couldn't evaluate INIT: %s\n", 251 AcpiFormatException(rv)); 252 253 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_CFVG, &cfv); 254 255 if (ACPI_FAILURE(rv)) 256 return; 257 258 sc->sc_cfvnum = (cfv >> 8) & 0xff; 259 } 260 261 static bool 262 asus_suspend(device_t self, const pmf_qual_t *qual) 263 { 264 struct asus_softc *sc = device_private(self); 265 ACPI_INTEGER val = 0; 266 ACPI_STATUS rv; 267 268 /* Capture display brightness. */ 269 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, &val); 270 271 if (ACPI_FAILURE(rv) || val > INT32_MAX) 272 sc->sc_brightness = -1; 273 else 274 sc->sc_brightness = val; 275 276 return true; 277 } 278 279 static bool 280 asus_resume(device_t self, const pmf_qual_t *qual) 281 { 282 struct asus_softc *sc = device_private(self); 283 ACPI_STATUS rv; 284 285 asus_init(self); 286 287 if (sc->sc_brightness < 0) 288 return true; 289 290 /* Restore previous display brightness. */ 291 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, 292 sc->sc_brightness); 293 294 if (ACPI_FAILURE(rv)) 295 aprint_error_dev(self, "couldn't evaluate PBLS: %s\n", 296 AcpiFormatException(rv)); 297 298 return true; 299 } 300 301 static int 302 asus_sysctl_verify(SYSCTLFN_ARGS) 303 { 304 struct sysctlnode node; 305 struct asus_softc *sc; 306 ACPI_INTEGER cfv; 307 ACPI_STATUS rv; 308 int err, tmp; 309 310 node = *rnode; 311 sc = rnode->sysctl_data; 312 if (node.sysctl_num == sc->sc_cfv_mib) { 313 rv = acpi_eval_integer(sc->sc_node->ad_handle, 314 ASUS_METHOD_CFVG, &cfv); 315 if (ACPI_FAILURE(rv)) 316 return ENXIO; 317 tmp = cfv & 0xff; 318 node.sysctl_data = &tmp; 319 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 320 if (err || newp == NULL) 321 return err; 322 323 if (tmp < 0 || tmp >= sc->sc_cfvnum) 324 return EINVAL; 325 326 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, 327 ASUS_METHOD_CFVS, tmp); 328 329 if (ACPI_FAILURE(rv)) 330 return ENXIO; 331 } 332 333 return 0; 334 } 335 336 static void 337 asus_sysctl_setup(struct asus_softc *sc) 338 { 339 const struct sysctlnode *node, *node_cfv, *node_ncfv; 340 int err, node_mib; 341 342 if (sc->sc_cfvnum == 0) 343 return; 344 345 err = sysctl_createv(&sc->sc_log, 0, NULL, NULL, 0, 346 CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL); 347 if (err) 348 goto sysctl_err; 349 err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, 350 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, 351 NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 352 if (err) 353 goto sysctl_err; 354 node_mib = node->sysctl_num; 355 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, 356 CTLFLAG_READONLY, CTLTYPE_INT, "ncfv", 357 SYSCTL_DESCR("Number of CPU frequency/voltage modes"), 358 NULL, 0, &sc->sc_cfvnum, 0, 359 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 360 if (err) 361 goto sysctl_err; 362 sc->sc_cfvnum_mib = node_ncfv->sysctl_num; 363 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, 364 CTLFLAG_READWRITE, CTLTYPE_INT, "cfv", 365 SYSCTL_DESCR("Current CPU frequency/voltage mode"), 366 asus_sysctl_verify, 0, sc, 0, 367 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 368 if (err) 369 goto sysctl_err; 370 sc->sc_cfv_mib = node_cfv->sysctl_num; 371 372 return; 373 sysctl_err: 374 aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n", err); 375 } 376 377 static void 378 asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 379 { 380 struct asus_softc *sc = sme->sme_cookie; 381 uint32_t rpm; 382 383 switch (edata->sensor) { 384 case ASUS_SENSOR_FAN: 385 if (asus_get_fan_speed(sc, &rpm)) { 386 edata->value_cur = rpm; 387 edata->state = ENVSYS_SVALID; 388 } else 389 edata->state = ENVSYS_SINVALID; 390 break; 391 } 392 } 393 394 static bool 395 asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) 396 { 397 ACPI_INTEGER rpmh, rpml; 398 ACPI_STATUS rv; 399 400 rv = acpi_eval_integer(sc->sc_node->ad_handle, 401 ASUS_EC_METHOD_FAN_RPMH, &rpmh); 402 if (ACPI_FAILURE(rv)) 403 return false; 404 rv = acpi_eval_integer(sc->sc_node->ad_handle, 405 ASUS_EC_METHOD_FAN_RPML, &rpml); 406 if (ACPI_FAILURE(rv)) 407 return false; 408 409 if (speed) 410 *speed = (rpmh << 8) | rpml; 411 return true; 412 } 413
Indexes created Wed Sep 24 15:09:51 GMT 2025