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-rw-r--r--sys/dev/acpi/acpi.c26
-rw-r--r--sys/dev/acpi/acpitz.c235
-rw-r--r--sys/dev/acpi/files.acpi7
3 files changed, 266 insertions, 2 deletions
diff --git a/sys/dev/acpi/acpi.c b/sys/dev/acpi/acpi.c
index 9c4743b6383..d7242d908fc 100644
--- a/sys/dev/acpi/acpi.c
+++ b/sys/dev/acpi/acpi.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: acpi.c,v 1.48 2006/04/11 02:36:49 marco Exp $ */
+/* $OpenBSD: acpi.c,v 1.49 2006/05/19 09:24:32 canacar Exp $ */
/*
* Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com>
* Copyright (c) 2005 Jordan Hargrave <jordan@openbsd.org>
@@ -59,6 +59,7 @@ void acpi_write_pmreg(struct acpi_softc *, int, int);
void acpi_foundpss(struct aml_node *, void *);
void acpi_foundhid(struct aml_node *, void *);
+void acpi_foundtmp(struct aml_node *, void *);
void acpi_inidev(struct aml_node *, void *);
int acpi_loadtables(struct acpi_softc *, struct acpi_rsdp *);
@@ -472,6 +473,26 @@ acpi_inidev(struct aml_node *node, void *arg)
}
void
+acpi_foundtmp(struct aml_node *node, void *arg)
+{
+ struct acpi_softc *sc = (struct acpi_softc *)arg;
+ struct device *self = (struct device *)arg;
+ const char *dev;
+ struct acpi_attach_args aaa;
+
+ dnprintf(10, "found thermal zone entry: %s\n", node->parent->name);
+
+ memset(&aaa, 0, sizeof(aaa));
+ aaa.aaa_iot = sc->sc_iot;
+ aaa.aaa_memt = sc->sc_memt;
+ aaa.aaa_node = node->parent;
+ aaa.aaa_dev = dev;
+ aaa.aaa_name = "acpitz";
+
+ config_found(self, &aaa, acpi_print);
+}
+
+void
acpi_foundpss(struct aml_node *node, void *arg)
{
struct acpi_softc *sc = (struct acpi_softc *)arg;
@@ -750,6 +771,9 @@ acpi_attach(struct device *parent, struct device *self, void *aux)
/* attach devices found in dsdt */
aml_find_node(aml_root.child, "_PSS", acpi_foundpss, sc);
+ /* attach devices found in dsdt */
+ aml_find_node(aml_root.child, "_TMP", acpi_foundtmp, sc);
+
/* Setup threads */
sc->sc_thread = malloc(sizeof(struct acpi_thread), M_DEVBUF, M_WAITOK);
sc->sc_thread->sc = sc;
diff --git a/sys/dev/acpi/acpitz.c b/sys/dev/acpi/acpitz.c
new file mode 100644
index 00000000000..9cdf7ce1b3a
--- /dev/null
+++ b/sys/dev/acpi/acpitz.c
@@ -0,0 +1,235 @@
+/* $OpenBSD: acpitz.c,v 1.1 2006/05/19 09:24:32 canacar Exp $ */
+/*
+ * Copyright (c) 2006 Can Erkin Acar <canacar@openbsd.org>
+ * Copyright (c) 2005 Marco Peereboom <marco@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/proc.h>
+#include <sys/signalvar.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/rwlock.h>
+#include <sys/malloc.h>
+
+#include <machine/bus.h>
+
+#include <dev/acpi/acpireg.h>
+#include <dev/acpi/acpivar.h>
+#include <dev/acpi/acpidev.h>
+#include <dev/acpi/amltypes.h>
+#include <dev/acpi/dsdt.h>
+
+#include <sys/sensors.h>
+
+struct acpitz_softc {
+ struct device sc_dev;
+
+ struct acpi_softc *sc_acpi;
+ struct aml_node *sc_devnode;
+
+ struct rwlock sc_lock;
+ u_int64_t sc_tmp;
+ u_int64_t sc_crt;
+ struct sensor sc_sens;
+};
+
+int acpitz_match(struct device *, void *, void *);
+void acpitz_attach(struct device *, struct device *, void *);
+void acpitz_refresh(void *);
+int acpitz_gettmp(struct acpitz_softc *);
+int acpitz_notify(struct aml_node *, int, void *);
+
+struct cfattach acpitz_ca = {
+ sizeof(struct acpitz_softc), acpitz_match, acpitz_attach
+};
+
+struct cfdriver acpitz_cd = {
+ NULL, "acpitz", DV_DULL
+};
+
+void acpitz_monitor(struct acpitz_softc *);
+void acpitz_refresh(void *);
+int acpitz_getbif(struct acpitz_softc *);
+int acpitz_getbst(struct acpitz_softc *);
+int acpitz_notify(struct aml_node *, int, void *);
+int acpitz_getcrt(struct acpitz_softc *);
+
+int
+acpitz_match(struct device *parent, void *match, void *aux)
+{
+ struct acpi_attach_args *aa = aux;
+ struct cfdata *cf = match;
+
+ /* sanity */
+ if (aa->aaa_name == NULL ||
+ strcmp(aa->aaa_name, cf->cf_driver->cd_name) != 0 ||
+ aa->aaa_table != NULL)
+ return (0);
+
+ if (aa->aaa_node->opcode != AMLOP_THERMALZONE)
+ return (0);
+
+ return (1);
+}
+
+void
+acpitz_attach(struct device *parent, struct device *self, void *aux)
+{
+ struct acpitz_softc *sc = (struct acpitz_softc *)self;
+ struct acpi_attach_args *aa = aux;
+ struct aml_value res, env;
+
+ sc->sc_acpi = (struct acpi_softc *)parent;
+ sc->sc_devnode = aa->aaa_node->child;
+
+ rw_init(&sc->sc_lock, "acpitz");
+
+ memset(&res, 0, sizeof(res));
+ memset(&env, 0, sizeof(env));
+
+ if (acpitz_gettmp(sc)) {
+ printf(", failed to read _TMP");
+ return;
+ }
+
+ if (acpitz_getcrt(sc)) {
+ printf(", no critical temperature defined!");
+ sc->sc_crt = 0;
+ } else
+ printf(", critical temperature: %u degC",
+ (unsigned)(sc->sc_crt - 2732) / 10);
+
+ aml_register_notify(sc->sc_devnode->parent, aa->aaa_dev,
+ acpitz_notify, sc);
+
+ memset(&sc->sc_sens, 0, sizeof(sc->sc_sens));
+ strlcpy(sc->sc_sens.device, DEVNAME(sc), sizeof(sc->sc_sens.device));
+ strlcpy(sc->sc_sens.desc, "zone temperature",
+ sizeof(sc->sc_sens.desc));
+ sc->sc_sens.type = SENSOR_TEMP;
+ sensor_add(&sc->sc_sens);
+ sc->sc_sens.value = 0;
+
+ if (sensor_task_register(sc, acpitz_refresh, 10))
+ printf(", unable to register update task");
+
+ printf("\n");
+}
+
+void
+acpitz_refresh(void *arg)
+{
+ struct acpitz_softc *sc = arg;
+ extern int acpi_s5;
+
+ dnprintf(30, "%s: %s: refresh\n", DEVNAME(sc),
+ sc->sc_devnode->parent->name);
+
+ if (acpitz_gettmp(sc)) {
+ dnprintf(30, "%s: %s: failed to read temp!\n", DEVNAME(sc),
+ sc->sc_devnode->parent->name);
+ sc->sc_tmp = 0; /* XXX */
+ }
+
+ if (sc->sc_crt && sc->sc_crt <= sc->sc_tmp) {
+ /* Do critical shutdown */
+ printf("%s: Critical temperature, shutting down!\n",
+ DEVNAME(sc));
+ acpi_s5 = 1;
+ psignal(initproc, SIGUSR1);
+ /* NOTREACHED */
+ }
+
+ rw_enter_write(&sc->sc_lock);
+
+ sc->sc_sens.value = sc->sc_tmp * 100000;
+
+ rw_exit_write(&sc->sc_lock);
+}
+
+int
+acpitz_gettmp(struct acpitz_softc *sc)
+{
+ struct aml_value res, env;
+ int rv = 1;
+
+ rw_enter_write(&sc->sc_lock);
+
+ memset(&res, 0, sizeof(res));
+ memset(&env, 0, sizeof(env));
+
+ if (aml_eval_name(sc->sc_acpi, sc->sc_devnode, "_TMP", &res, &env)) {
+ dnprintf(10, "%s: no _TMP\n", DEVNAME(sc));
+ goto out;
+ }
+
+ sc->sc_tmp = aml_val2int(NULL, &res);
+ rv = 0;
+ out:
+ rw_exit_write(&sc->sc_lock);
+ return (rv);
+}
+
+int
+acpitz_getcrt(struct acpitz_softc *sc)
+{
+ struct aml_value res, env;
+ int rv = 1;
+
+ rw_enter_write(&sc->sc_lock);
+
+ memset(&res, 0, sizeof(res));
+ memset(&env, 0, sizeof(env));
+
+ if (aml_eval_name(sc->sc_acpi, sc->sc_devnode, "_CRT", &res, &env)) {
+ dnprintf(10, "%s: no _CRT\n", DEVNAME(sc));
+ goto out;
+ }
+
+ sc->sc_crt = aml_val2int(NULL, &res);
+ rv = 0;
+ out:
+ rw_exit_write(&sc->sc_lock);
+ return (rv);
+}
+
+
+int
+acpitz_notify(struct aml_node *node, int notify_type, void *arg)
+{
+ struct acpitz_softc *sc = arg;
+ u_int64_t crt;
+
+ dnprintf(10, "%s notify: %.2x %s\n", DEVNAME(sc), notify_type,
+ sc->sc_devnode->parent->name);
+
+ switch (notify_type) {
+ case 0x81: /* Operating Points changed */
+ crt = sc->sc_crt;
+ acpitz_getcrt(sc);
+ if (crt != sc->sc_crt)
+ printf("%s: critical temperature: %u degC",
+ DEVNAME(sc),
+ (unsigned)(sc->sc_crt - 2732) / 10);
+ break;
+ default:
+ break;
+ }
+
+ acpitz_refresh(sc);
+
+ return (0);
+}
diff --git a/sys/dev/acpi/files.acpi b/sys/dev/acpi/files.acpi
index 56e4d00cb4e..70c35c2ec5b 100644
--- a/sys/dev/acpi/files.acpi
+++ b/sys/dev/acpi/files.acpi
@@ -1,4 +1,4 @@
-# $OpenBSD: files.acpi,v 1.10 2006/03/06 03:13:42 marco Exp $
+# $OpenBSD: files.acpi,v 1.11 2006/05/19 09:24:32 canacar Exp $
#
# Config file and device description for machine-independent ACPI code.
# Included by ports that need it.
@@ -40,3 +40,8 @@ file dev/acpi/acpicpu.c acpicpu
device acpihpet
attach acpihpet at acpi
file dev/acpi/acpihpet.c acpihpet
+
+# Thermal Zone
+device acpitz
+attach acpitz at acpi
+file dev/acpi/acpitz.c acpitz
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 21:15:28 +0000