asus_acpi.c revision 1.14
1 /* $NetBSD: asus_acpi.c,v 1.14 2010/01/29 11:57:37 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 1.14 2010/01/29 11:57:37 jruoho 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 ACPI_INTEGER 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, pmf_qual_t); 101 static bool asus_resume(device_t, 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 int i; 190 191 if (sc->sc_smpsw_valid) 192 for (i = 0; i < ASUS_PSW_LAST; i++) 193 sysmon_pswitch_unregister(&sc->sc_smpsw[i]); 194 195 if (sc->sc_sme) 196 sysmon_envsys_unregister(sc->sc_sme); 197 if (sc->sc_log) 198 sysctl_teardown(&sc->sc_log); 199 pmf_device_deregister(self); 200 201 return 0; 202 } 203 204 static void 205 asus_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque) 206 { 207 struct asus_softc *sc = opaque; 208 209 if (notify >= ASUS_NOTIFY_BrightnessLow && 210 notify <= ASUS_NOTIFY_BrightnessHigh) { 211 aprint_debug_dev(sc->sc_dev, "brightness %d percent\n", 212 (notify & 0xf) * 100 / 0xf); 213 return; 214 } 215 216 switch (notify) { 217 case ASUS_NOTIFY_WirelessSwitch: /* handled by AML */ 218 case ASUS_NOTIFY_WindowSwitch: /* XXXJDM what is this? */ 219 break; 220 case ASUS_NOTIFY_DisplayCycle: 221 if (sc->sc_smpsw_valid == false) 222 break; 223 sysmon_pswitch_event(&sc->sc_smpsw[ASUS_PSW_DISPLAY_CYCLE], 224 PSWITCH_EVENT_PRESSED); 225 break; 226 case ASUS_NOTIFY_VolumeMute: 227 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_TOGGLE); 228 break; 229 case ASUS_NOTIFY_VolumeDown: 230 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN); 231 break; 232 case ASUS_NOTIFY_VolumeUp: 233 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP); 234 break; 235 default: 236 aprint_debug_dev(sc->sc_dev, "unknown event 0x%02x\n", notify); 237 break; 238 } 239 } 240 241 static void 242 asus_init(device_t self) 243 { 244 struct asus_softc *sc = device_private(self); 245 ACPI_INTEGER cfv; 246 ACPI_STATUS rv; 247 248 /* Disable ASL display switching. */ 249 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, "INIT", 0x40); 250 251 if (ACPI_FAILURE(rv)) 252 aprint_error_dev(self, "couldn't evaluate INIT: %s\n", 253 AcpiFormatException(rv)); 254 255 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_CFVG, &cfv); 256 257 if (ACPI_FAILURE(rv)) 258 return; 259 260 sc->sc_cfvnum = (cfv >> 8) & 0xff; 261 } 262 263 static bool 264 asus_suspend(device_t self, pmf_qual_t qual) 265 { 266 struct asus_softc *sc = device_private(self); 267 ACPI_STATUS rv; 268 269 /* capture display brightness when we're sleeping */ 270 rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, 271 &sc->sc_brightness); 272 if (ACPI_FAILURE(rv)) 273 aprint_error_dev(sc->sc_dev, "couldn't evaluate PBLG: %s\n", 274 AcpiFormatException(rv)); 275 276 return true; 277 } 278 279 static bool 280 asus_resume(device_t self, pmf_qual_t qual) 281 { 282 struct asus_softc *sc = device_private(self); 283 ACPI_STATUS rv; 284 285 asus_init(self); 286 287 /* Restore previous display brightness. */ 288 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, 289 sc->sc_brightness); 290 291 if (ACPI_FAILURE(rv)) 292 aprint_error_dev(self, "couldn't evaluate PBLS: %s\n", 293 AcpiFormatException(rv)); 294 295 return true; 296 } 297 298 static int 299 asus_sysctl_verify(SYSCTLFN_ARGS) 300 { 301 struct sysctlnode node; 302 struct asus_softc *sc; 303 ACPI_INTEGER cfv; 304 ACPI_STATUS rv; 305 int err, tmp; 306 307 node = *rnode; 308 sc = rnode->sysctl_data; 309 if (node.sysctl_num == sc->sc_cfv_mib) { 310 rv = acpi_eval_integer(sc->sc_node->ad_handle, 311 ASUS_METHOD_CFVG, &cfv); 312 if (ACPI_FAILURE(rv)) 313 return ENXIO; 314 tmp = cfv & 0xff; 315 node.sysctl_data = &tmp; 316 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 317 if (err || newp == NULL) 318 return err; 319 320 if (tmp < 0 || tmp >= sc->sc_cfvnum) 321 return EINVAL; 322 323 rv = acpi_eval_set_integer(sc->sc_node->ad_handle, 324 ASUS_METHOD_CFVS, tmp); 325 326 if (ACPI_FAILURE(rv)) 327 return ENXIO; 328 } 329 330 return 0; 331 } 332 333 static void 334 asus_sysctl_setup(struct asus_softc *sc) 335 { 336 const struct sysctlnode *node, *node_cfv, *node_ncfv; 337 int err, node_mib; 338 339 if (sc->sc_cfvnum == 0) 340 return; 341 342 err = sysctl_createv(&sc->sc_log, 0, NULL, NULL, 0, 343 CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL); 344 if (err) 345 goto sysctl_err; 346 err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, 347 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, 348 NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); 349 if (err) 350 goto sysctl_err; 351 node_mib = node->sysctl_num; 352 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, 353 CTLFLAG_READONLY, CTLTYPE_INT, "ncfv", 354 SYSCTL_DESCR("Number of CPU frequency/voltage modes"), 355 NULL, 0, &sc->sc_cfvnum, 0, 356 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 357 if (err) 358 goto sysctl_err; 359 sc->sc_cfvnum_mib = node_ncfv->sysctl_num; 360 err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, 361 CTLFLAG_READWRITE, CTLTYPE_INT, "cfv", 362 SYSCTL_DESCR("Current CPU frequency/voltage mode"), 363 asus_sysctl_verify, 0, sc, 0, 364 CTL_HW, node_mib, CTL_CREATE, CTL_EOL); 365 if (err) 366 goto sysctl_err; 367 sc->sc_cfv_mib = node_cfv->sysctl_num; 368 369 return; 370 sysctl_err: 371 aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n", err); 372 } 373 374 static void 375 asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 376 { 377 struct asus_softc *sc = sme->sme_cookie; 378 uint32_t rpm; 379 380 switch (edata->sensor) { 381 case ASUS_SENSOR_FAN: 382 if (asus_get_fan_speed(sc, &rpm)) { 383 edata->value_cur = rpm; 384 edata->state = ENVSYS_SVALID; 385 } else 386 edata->state = ENVSYS_SINVALID; 387 break; 388 } 389 } 390 391 static bool 392 asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) 393 { 394 ACPI_INTEGER rpmh, rpml; 395 ACPI_STATUS rv; 396 397 rv = acpi_eval_integer(sc->sc_node->ad_handle, 398 ASUS_EC_METHOD_FAN_RPMH, &rpmh); 399 if (ACPI_FAILURE(rv)) 400 return false; 401 rv = acpi_eval_integer(sc->sc_node->ad_handle, 402 ASUS_EC_METHOD_FAN_RPML, &rpml); 403 if (ACPI_FAILURE(rv)) 404 return false; 405 406 if (speed) 407 *speed = (rpmh << 8) | rpml; 408 return true; 409 } 410
Indexes created Thu Sep 25 16:09:42 GMT 2025