| 1 | /* $NetBSD: asus_acpi.c,v 1.26 2015/04/23 23:23:00 pgoyette Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2007, 2008, 2009 Jared D. McNeill <jmcneill@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 1.26 2015/04/23 23:23:00 pgoyette Exp $" ); |
| 31 | |
| 32 | #include <sys/param.h> |
| 33 | #include <sys/device.h> |
| 34 | #include <sys/module.h> |
| 35 | #include <sys/sysctl.h> |
| 36 | #include <sys/systm.h> |
| 37 | |
| 38 | #include <dev/acpi/acpireg.h> |
| 39 | #include <dev/acpi/acpivar.h> |
| 40 | |
| 41 | #define _COMPONENT ACPI_RESOURCE_COMPONENT |
| 42 | ACPI_MODULE_NAME ("asus_acpi" ) |
| 43 | |
| 44 | struct asus_softc { |
| 45 | device_t sc_dev; |
| 46 | struct acpi_devnode *sc_node; |
| 47 | |
| 48 | #define ASUS_PSW_DISPLAY_CYCLE 0 |
| 49 | #define ASUS_PSW_LAST 1 |
| 50 | struct sysmon_pswitch sc_smpsw[ASUS_PSW_LAST]; |
| 51 | bool sc_smpsw_valid; |
| 52 | |
| 53 | struct sysmon_envsys *sc_sme; |
| 54 | #define ASUS_SENSOR_FAN 0 |
| 55 | #define ASUS_SENSOR_LAST 1 |
| 56 | envsys_data_t sc_sensor[ASUS_SENSOR_LAST]; |
| 57 | |
| 58 | int32_t sc_brightness; |
| 59 | ACPI_INTEGER sc_cfvnum; |
| 60 | |
| 61 | struct sysctllog *sc_log; |
| 62 | int sc_cfv_mib; |
| 63 | int sc_cfvnum_mib; |
| 64 | }; |
| 65 | |
| 66 | #define ASUS_NOTIFY_WirelessSwitch 0x10 |
| 67 | #define ASUS_NOTIFY_BrightnessLow 0x20 |
| 68 | #define ASUS_NOTIFY_BrightnessHigh 0x2f |
| 69 | #define ASUS_NOTIFY_DisplayCycle 0x30 |
| 70 | #define ASUS_NOTIFY_WindowSwitch 0x12 /* XXXJDM ?? */ |
| 71 | #define ASUS_NOTIFY_VolumeMute 0x13 |
| 72 | #define ASUS_NOTIFY_VolumeDown 0x14 |
| 73 | #define ASUS_NOTIFY_VolumeUp 0x15 |
| 74 | |
| 75 | #define ASUS_METHOD_SDSP "SDSP" |
| 76 | #define ASUS_SDSP_LCD 0x01 |
| 77 | #define ASUS_SDSP_CRT 0x02 |
| 78 | #define ASUS_SDSP_TV 0x04 |
| 79 | #define ASUS_SDSP_DVI 0x08 |
| 80 | #define ASUS_SDSP_ALL \ |
| 81 | (ASUS_SDSP_LCD | ASUS_SDSP_CRT | ASUS_SDSP_TV | ASUS_SDSP_DVI) |
| 82 | #define ASUS_METHOD_PBLG "PBLG" |
| 83 | #define ASUS_METHOD_PBLS "PBLS" |
| 84 | #define ASUS_METHOD_CFVS "CFVS" |
| 85 | #define ASUS_METHOD_CFVG "CFVG" |
| 86 | |
| 87 | #define ASUS_EC_METHOD_FAN_RPMH "\\_SB.PCI0.SBRG.EC0.SC05" |
| 88 | #define ASUS_EC_METHOD_FAN_RPML "\\_SB.PCI0.SBRG.EC0.SC06" |
| 89 | |
| 90 | static int asus_match(device_t, cfdata_t, void *); |
| 91 | static void asus_attach(device_t, device_t, void *); |
| 92 | static int asus_detach(device_t, int); |
| 93 | |
| 94 | static void asus_notify_handler(ACPI_HANDLE, uint32_t, void *); |
| 95 | |
| 96 | static void asus_init(device_t); |
| 97 | static bool asus_suspend(device_t, const pmf_qual_t *); |
| 98 | static bool asus_resume(device_t, const pmf_qual_t *); |
| 99 | |
| 100 | static void asus_sysctl_setup(struct asus_softc *); |
| 101 | |
| 102 | static void asus_sensors_refresh(struct sysmon_envsys *, envsys_data_t *); |
| 103 | static bool asus_get_fan_speed(struct asus_softc *, uint32_t *); |
| 104 | |
| 105 | CFATTACH_DECL_NEW(asus, sizeof(struct asus_softc), |
| 106 | asus_match, asus_attach, asus_detach, NULL); |
| 107 | |
| 108 | static const char * const asus_ids[] = { |
| 109 | "ASUS010" , |
| 110 | NULL |
| 111 | }; |
| 112 | |
| 113 | static int |
| 114 | asus_match(device_t parent, cfdata_t match, void *opaque) |
| 115 | { |
| 116 | struct acpi_attach_args *aa = opaque; |
| 117 | |
| 118 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
| 119 | return 0; |
| 120 | |
| 121 | return acpi_match_hid(aa->aa_node->ad_devinfo, asus_ids); |
| 122 | } |
| 123 | |
| 124 | static void |
| 125 | asus_attach(device_t parent, device_t self, void *opaque) |
| 126 | { |
| 127 | struct asus_softc *sc = device_private(self); |
| 128 | struct acpi_attach_args *aa = opaque; |
| 129 | |
| 130 | sc->sc_dev = self; |
| 131 | sc->sc_node = aa->aa_node; |
| 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 out; |
| 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 | sc->sc_sensor[ASUS_SENSOR_FAN].state = ENVSYS_SINVALID; |
| 157 | sysmon_envsys_sensor_attach(sc->sc_sme, |
| 158 | &sc->sc_sensor[ASUS_SENSOR_FAN]); |
| 159 | |
| 160 | sc->sc_sme->sme_name = device_xname(self); |
| 161 | sc->sc_sme->sme_cookie = sc; |
| 162 | sc->sc_sme->sme_refresh = asus_sensors_refresh; |
| 163 | sc->sc_sme->sme_flags = SME_POLL_ONLY; |
| 164 | |
| 165 | if (sysmon_envsys_register(sc->sc_sme)) { |
| 166 | aprint_error_dev(self, "couldn't register with envsys\n" ); |
| 167 | sysmon_envsys_destroy(sc->sc_sme); |
| 168 | sc->sc_sme = NULL; |
| 169 | } |
| 170 | |
| 171 | out: |
| 172 | (void)pmf_device_register(self, asus_suspend, asus_resume); |
| 173 | (void)acpi_register_notify(sc->sc_node, asus_notify_handler); |
| 174 | } |
| 175 | |
| 176 | static int |
| 177 | asus_detach(device_t self, int flags) |
| 178 | { |
| 179 | struct asus_softc *sc = device_private(self); |
| 180 | int i; |
| 181 | |
| 182 | acpi_deregister_notify(sc->sc_node); |
| 183 | |
| 184 | if (sc->sc_smpsw_valid != false) { |
| 185 | |
| 186 | for (i = 0; i < ASUS_PSW_LAST; i++) |
| 187 | sysmon_pswitch_unregister(&sc->sc_smpsw[i]); |
| 188 | } |
| 189 | |
| 190 | if (sc->sc_sme != NULL) |
| 191 | sysmon_envsys_unregister(sc->sc_sme); |
| 192 | |
| 193 | if (sc->sc_log != NULL) |
| 194 | sysctl_teardown(&sc->sc_log); |
| 195 | |
| 196 | pmf_device_deregister(self); |
| 197 | |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | static void |
| 202 | asus_notify_handler(ACPI_HANDLE hdl, uint32_t notify, void *opaque) |
| 203 | { |
| 204 | struct asus_softc *sc; |
| 205 | device_t self = opaque; |
| 206 | |
| 207 | sc = device_private(self); |
| 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, const pmf_qual_t *qual) |
| 265 | { |
| 266 | struct asus_softc *sc = device_private(self); |
| 267 | ACPI_INTEGER val = 0; |
| 268 | ACPI_STATUS rv; |
| 269 | |
| 270 | /* Capture display brightness. */ |
| 271 | rv = acpi_eval_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLG, &val); |
| 272 | |
| 273 | if (ACPI_FAILURE(rv) || val > INT32_MAX) |
| 274 | sc->sc_brightness = -1; |
| 275 | else |
| 276 | sc->sc_brightness = val; |
| 277 | |
| 278 | return true; |
| 279 | } |
| 280 | |
| 281 | static bool |
| 282 | asus_resume(device_t self, const pmf_qual_t *qual) |
| 283 | { |
| 284 | struct asus_softc *sc = device_private(self); |
| 285 | ACPI_STATUS rv; |
| 286 | |
| 287 | asus_init(self); |
| 288 | |
| 289 | if (sc->sc_brightness < 0) |
| 290 | return true; |
| 291 | |
| 292 | /* Restore previous display brightness. */ |
| 293 | rv = acpi_eval_set_integer(sc->sc_node->ad_handle, ASUS_METHOD_PBLS, |
| 294 | sc->sc_brightness); |
| 295 | |
| 296 | if (ACPI_FAILURE(rv)) |
| 297 | aprint_error_dev(self, "couldn't evaluate PBLS: %s\n" , |
| 298 | AcpiFormatException(rv)); |
| 299 | |
| 300 | return true; |
| 301 | } |
| 302 | |
| 303 | static int |
| 304 | asus_sysctl_verify(SYSCTLFN_ARGS) |
| 305 | { |
| 306 | struct sysctlnode node; |
| 307 | struct asus_softc *sc; |
| 308 | ACPI_INTEGER cfv; |
| 309 | ACPI_STATUS rv; |
| 310 | int err, tmp; |
| 311 | |
| 312 | node = *rnode; |
| 313 | sc = rnode->sysctl_data; |
| 314 | if (node.sysctl_num == sc->sc_cfv_mib) { |
| 315 | rv = acpi_eval_integer(sc->sc_node->ad_handle, |
| 316 | ASUS_METHOD_CFVG, &cfv); |
| 317 | if (ACPI_FAILURE(rv)) |
| 318 | return ENXIO; |
| 319 | tmp = cfv & 0xff; |
| 320 | node.sysctl_data = &tmp; |
| 321 | err = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 322 | if (err || newp == NULL) |
| 323 | return err; |
| 324 | |
| 325 | if (tmp < 0 || (uint64_t)tmp >= sc->sc_cfvnum) |
| 326 | return EINVAL; |
| 327 | |
| 328 | rv = acpi_eval_set_integer(sc->sc_node->ad_handle, |
| 329 | ASUS_METHOD_CFVS, tmp); |
| 330 | |
| 331 | if (ACPI_FAILURE(rv)) |
| 332 | return ENXIO; |
| 333 | } |
| 334 | |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | static void |
| 339 | asus_sysctl_setup(struct asus_softc *sc) |
| 340 | { |
| 341 | const struct sysctlnode *node, *node_cfv, *node_ncfv; |
| 342 | int err, node_mib; |
| 343 | |
| 344 | if (sc->sc_cfvnum == 0) |
| 345 | return; |
| 346 | |
| 347 | err = sysctl_createv(&sc->sc_log, 0, NULL, &node, 0, |
| 348 | CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, NULL, 0, |
| 349 | NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL); |
| 350 | if (err) |
| 351 | goto sysctl_err; |
| 352 | node_mib = node->sysctl_num; |
| 353 | err = sysctl_createv(&sc->sc_log, 0, NULL, &node_ncfv, |
| 354 | CTLFLAG_READONLY, CTLTYPE_QUAD, "ncfv" , |
| 355 | SYSCTL_DESCR("Number of CPU frequency/voltage modes" ), |
| 356 | NULL, 0, &sc->sc_cfvnum, 0, |
| 357 | CTL_HW, node_mib, CTL_CREATE, CTL_EOL); |
| 358 | if (err) |
| 359 | goto sysctl_err; |
| 360 | sc->sc_cfvnum_mib = node_ncfv->sysctl_num; |
| 361 | err = sysctl_createv(&sc->sc_log, 0, NULL, &node_cfv, |
| 362 | CTLFLAG_READWRITE, CTLTYPE_INT, "cfv" , |
| 363 | SYSCTL_DESCR("Current CPU frequency/voltage mode" ), |
| 364 | asus_sysctl_verify, 0, (void *)sc, 0, |
| 365 | CTL_HW, node_mib, CTL_CREATE, CTL_EOL); |
| 366 | if (err) |
| 367 | goto sysctl_err; |
| 368 | sc->sc_cfv_mib = node_cfv->sysctl_num; |
| 369 | |
| 370 | return; |
| 371 | sysctl_err: |
| 372 | aprint_error_dev(sc->sc_dev, "failed to add sysctl nodes. (%d)\n" , err); |
| 373 | } |
| 374 | |
| 375 | static void |
| 376 | asus_sensors_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) |
| 377 | { |
| 378 | struct asus_softc *sc = sme->sme_cookie; |
| 379 | uint32_t rpm; |
| 380 | |
| 381 | switch (edata->sensor) { |
| 382 | case ASUS_SENSOR_FAN: |
| 383 | if (asus_get_fan_speed(sc, &rpm)) { |
| 384 | edata->value_cur = rpm; |
| 385 | edata->state = ENVSYS_SVALID; |
| 386 | } else |
| 387 | edata->state = ENVSYS_SINVALID; |
| 388 | break; |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | static bool |
| 393 | asus_get_fan_speed(struct asus_softc *sc, uint32_t *speed) |
| 394 | { |
| 395 | ACPI_INTEGER rpmh, rpml; |
| 396 | ACPI_STATUS rv; |
| 397 | |
| 398 | rv = acpi_eval_integer(sc->sc_node->ad_handle, |
| 399 | ASUS_EC_METHOD_FAN_RPMH, &rpmh); |
| 400 | if (ACPI_FAILURE(rv)) |
| 401 | return false; |
| 402 | rv = acpi_eval_integer(sc->sc_node->ad_handle, |
| 403 | ASUS_EC_METHOD_FAN_RPML, &rpml); |
| 404 | if (ACPI_FAILURE(rv)) |
| 405 | return false; |
| 406 | |
| 407 | if (speed) |
| 408 | *speed = (rpmh << 8) | rpml; |
| 409 | return true; |
| 410 | } |
| 411 | |
| 412 | MODULE(MODULE_CLASS_DRIVER, asus, "sysmon_envsys,sysmon_power" ); |
| 413 | |
| 414 | #ifdef _MODULE |
| 415 | #include "ioconf.c" |
| 416 | #endif |
| 417 | |
| 418 | static int |
| 419 | asus_modcmd(modcmd_t cmd, void *aux) |
| 420 | { |
| 421 | int rv = 0; |
| 422 | |
| 423 | switch (cmd) { |
| 424 | |
| 425 | case MODULE_CMD_INIT: |
| 426 | |
| 427 | #ifdef _MODULE |
| 428 | rv = config_init_component(cfdriver_ioconf_asus, |
| 429 | cfattach_ioconf_asus, cfdata_ioconf_asus); |
| 430 | #endif |
| 431 | break; |
| 432 | |
| 433 | case MODULE_CMD_FINI: |
| 434 | |
| 435 | #ifdef _MODULE |
| 436 | rv = config_fini_component(cfdriver_ioconf_asus, |
| 437 | cfattach_ioconf_asus, cfdata_ioconf_asus); |
| 438 | #endif |
| 439 | break; |
| 440 | |
| 441 | default: |
| 442 | rv = ENOTTY; |
| 443 | } |
| 444 | |
| 445 | return rv; |
| 446 | } |
| 447 | |