Line data    Source code

       1             : /* $OpenBSD: acpiac.c,v 1.31 2018/07/01 19:40:49 mlarkin Exp $ */
       2             : /*
       3             :  * Copyright (c) 2005 Marco Peereboom <marco@openbsd.org>
       4             :  *
       5             :  * Permission to use, copy, modify, and distribute this software for any
       6             :  * purpose with or without fee is hereby granted, provided that the above
       7             :  * copyright notice and this permission notice appear in all copies.
       8             :  *
       9             :  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      10             :  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
      11             :  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
      12             :  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
      13             :  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
      14             :  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
      15             :  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
      16             :  */
      17             : 
      18             : #include <sys/param.h>
      19             : #include <sys/event.h>
      20             : #include <sys/systm.h>
      21             : #include <sys/device.h>
      22             : #include <sys/malloc.h>
      23             : 
      24             : #include <machine/bus.h>
      25             : #include <machine/apmvar.h>
      26             : 
      27             : #include <dev/acpi/acpireg.h>
      28             : #include <dev/acpi/acpivar.h>
      29             : #include <dev/acpi/acpidev.h>
      30             : #include <dev/acpi/dsdt.h>
      31             : 
      32             : #include <sys/sensors.h>
      33             : 
      34             : int  acpiac_match(struct device *, void *, void *);
      35             : void acpiac_attach(struct device *, struct device *, void *);
      36             : int  acpiac_notify(struct aml_node *, int, void *);
      37             : 
      38             : void acpiac_refresh(void *);
      39             : int acpiac_getsta(struct acpiac_softc *);
      40             : 
      41             : struct cfattach acpiac_ca = {
      42             :         sizeof(struct acpiac_softc), acpiac_match, acpiac_attach
      43             : };
      44             : 
      45             : struct cfdriver acpiac_cd = {
      46             :         NULL, "acpiac", DV_DULL
      47             : };
      48             : 
      49             : const char *acpiac_hids[] = {
      50             :         ACPI_DEV_AC,
      51             :         NULL
      52             : };
      53             : 
      54             : int
      55           0 : acpiac_match(struct device *parent, void *match, void *aux)
      56             : {
      57           0 :         struct acpi_attach_args *aa = aux;
      58           0 :         struct cfdata *cf = match;
      59             : 
      60             :         /* sanity */
      61           0 :         return (acpi_matchhids(aa, acpiac_hids, cf->cf_driver->cd_name));
      62             : }
      63             : 
      64             : void
      65           0 : acpiac_attach(struct device *parent, struct device *self, void *aux)
      66             : {
      67           0 :         struct acpiac_softc *sc = (struct acpiac_softc *)self;
      68           0 :         struct acpi_attach_args *aa = aux;
      69             : 
      70           0 :         sc->sc_acpi = (struct acpi_softc *)parent;
      71           0 :         sc->sc_devnode = aa->aaa_node;
      72             : 
      73           0 :         acpiac_getsta(sc);
      74           0 :         printf(": AC unit ");
      75           0 :         if (sc->sc_ac_stat == PSR_ONLINE)
      76           0 :                 printf("online\n");
      77           0 :         else if (sc->sc_ac_stat == PSR_OFFLINE)
      78           0 :                 printf("offline\n");
      79             :         else
      80           0 :                 printf("in unknown state\n");
      81             : 
      82           0 :         strlcpy(sc->sc_sensdev.xname, DEVNAME(sc),
      83             :             sizeof(sc->sc_sensdev.xname));
      84           0 :         strlcpy(sc->sc_sens[0].desc, "power supply",
      85             :             sizeof(sc->sc_sens[0].desc));
      86           0 :         sc->sc_sens[0].type = SENSOR_INDICATOR;
      87           0 :         sensor_attach(&sc->sc_sensdev, &sc->sc_sens[0]);
      88           0 :         sensordev_install(&sc->sc_sensdev);
      89           0 :         sc->sc_sens[0].value = sc->sc_ac_stat;
      90             : 
      91           0 :         aml_register_notify(sc->sc_devnode, aa->aaa_dev,
      92           0 :             acpiac_notify, sc, ACPIDEV_NOPOLL);
      93           0 : }
      94             : 
      95             : void
      96           0 : acpiac_refresh(void *arg)
      97             : {
      98           0 :         struct acpiac_softc *sc = arg;
      99             : 
     100           0 :         acpiac_getsta(sc);
     101           0 :         sc->sc_sens[0].value = sc->sc_ac_stat;
     102           0 :         acpi_record_event(sc->sc_acpi, APM_POWER_CHANGE);
     103           0 : }
     104             : 
     105             : int
     106           0 : acpiac_getsta(struct acpiac_softc *sc)
     107             : {
     108           0 :         int64_t sta;
     109             : 
     110           0 :         if (aml_evalname(sc->sc_acpi, sc->sc_devnode, "_STA", 0, NULL, NULL)) {
     111             :                 dnprintf(10, "%s: no _STA\n",
     112             :                     DEVNAME(sc));
     113             :         }
     114             : 
     115           0 :         if (aml_evalinteger(sc->sc_acpi, sc->sc_devnode, "_PSR", 0, NULL, &sta)) {
     116             :                 dnprintf(10, "%s: no _PSR\n",
     117             :                     DEVNAME(sc));
     118           0 :                 return (1);
     119             :         }
     120           0 :         sc->sc_ac_stat = sta;
     121           0 :         return (0);
     122           0 : }
     123             : 
     124             : int
     125           0 : acpiac_notify(struct aml_node *node, int notify_type, void *arg)
     126             : {
     127           0 :         struct acpiac_softc *sc = arg;
     128             : 
     129             :         dnprintf(10, "acpiac_notify: %.2x %s\n", notify_type,
     130             :             DEVNAME(sc));
     131             : 
     132           0 :         switch (notify_type) {
     133             :         case 0x00:
     134             :         case 0x01:
     135             :         case 0x81:
     136             :                 /*
     137             :                  * XXX some sony vaio's use the wrong notify type
     138             :                  * work around it by honoring it as a 0x80
     139             :                  */
     140             :                 /* FALLTHROUGH */
     141             :         case 0x80:
     142           0 :                 acpiac_refresh(sc);
     143             :                 dnprintf(10, "A/C status: %d\n", sc->sc_ac_stat);
     144           0 :                 break;
     145             :         }
     146           0 :         return (0);
     147             : }