Add hw.acpi.power sysctl-node.
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jruoho
parent
4e32f54f3c
commit
16bdc3ff0f
@ -1,4 +1,4 @@
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/* $NetBSD: acpi.c,v 1.183 2010/04/23 07:04:18 jruoho Exp $ */
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/* $NetBSD: acpi.c,v 1.184 2010/04/23 18:51:31 jruoho Exp $ */
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/*-
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* Copyright (c) 2003, 2007 The NetBSD Foundation, Inc.
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@ -65,7 +65,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.183 2010/04/23 07:04:18 jruoho Exp $");
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__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.184 2010/04/23 18:51:31 jruoho Exp $");
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#include "opt_acpi.h"
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#include "opt_pcifixup.h"
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@ -1056,7 +1056,7 @@ acpi_rescan_capabilities(struct acpi_softc *sc)
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if (ACPI_SUCCESS(rv)) {
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ad->ad_flags |= ACPI_DEVICE_POWER;
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(void)acpi_power_get(ad, NULL);
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acpi_power_add(ad);
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}
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/*
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@ -1,4 +1,4 @@
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/* $NetBSD: acpi_power.c,v 1.3 2010/04/23 15:37:01 jruoho Exp $ */
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/* $NetBSD: acpi_power.c,v 1.4 2010/04/23 18:51:31 jruoho Exp $ */
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/*-
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* Copyright (c) 2009, 2010 The NetBSD Foundation, Inc.
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@ -56,11 +56,12 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: acpi_power.c,v 1.3 2010/04/23 15:37:01 jruoho Exp $");
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__KERNEL_RCSID(0, "$NetBSD: acpi_power.c,v 1.4 2010/04/23 18:51:31 jruoho Exp $");
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#include <sys/param.h>
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#include <sys/kmem.h>
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#include <sys/mutex.h>
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#include <sys/sysctl.h>
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#include <dev/acpi/acpireg.h>
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#include <dev/acpi/acpivar.h>
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@ -95,6 +96,8 @@ struct acpi_power_res {
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static TAILQ_HEAD(, acpi_power_res) res_head =
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TAILQ_HEAD_INITIALIZER(res_head);
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static const struct sysctlnode *anode = NULL;
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static struct acpi_power_res *acpi_power_res_init(ACPI_HANDLE);
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static struct acpi_power_res *acpi_power_res_get(ACPI_HANDLE);
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@ -114,6 +117,7 @@ static ACPI_STATUS acpi_power_res_deref(struct acpi_power_res *,
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static ACPI_STATUS acpi_power_res_sta(ACPI_OBJECT *, void *);
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static ACPI_OBJECT *acpi_power_pkg_get(ACPI_HANDLE, int);
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static int acpi_power_sysctl(SYSCTLFN_ARGS);
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static const char *acpi_xname(ACPI_HANDLE);
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void
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@ -701,6 +705,90 @@ fail:
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return NULL;
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}
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SYSCTL_SETUP(sysctl_acpi_power_setup, "sysctl hw.acpi.power subtree setup")
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{
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int err;
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err = sysctl_createv(NULL, 0, NULL, &anode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw",
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NULL, NULL, 0, NULL, 0,
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CTL_HW, CTL_EOL);
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if (err != 0)
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goto fail;
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err = sysctl_createv(NULL, 0, &anode, &anode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE, "acpi",
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NULL, NULL, 0, NULL, 0,
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CTL_CREATE, CTL_EOL);
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if (err != 0)
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goto fail;
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err = sysctl_createv(NULL, 0, &anode, &anode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE,
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"power", SYSCTL_DESCR("ACPI device power states"),
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NULL, 0, NULL, 0,
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CTL_CREATE, CTL_EOL);
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if (err != 0)
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goto fail;
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return;
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fail:
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anode = NULL;
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}
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void
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acpi_power_add(struct acpi_devnode *ad)
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{
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int err;
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KASSERT(ad != NULL && ad->ad_root != NULL);
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KASSERT((ad->ad_flags & ACPI_DEVICE_POWER) != 0);
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if (anode == NULL)
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return;
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/*
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* Make this read-only: because a single power resource
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* may power multiple devices, it is unclear whether
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* power resources should be controllable by an user.
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*/
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err = sysctl_createv(NULL, 0, &anode, NULL,
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CTLFLAG_READONLY, CTLTYPE_STRING, ad->ad_name,
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NULL, acpi_power_sysctl, 0, &ad->ad_state, 0,
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CTL_CREATE, CTL_EOL);
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if (err != 0)
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aprint_error_dev(ad->ad_root, "sysctl_createv"
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"(hw.acpi.power.%s) failed (err %d)\n", ad->ad_name, err);
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}
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static int
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acpi_power_sysctl(SYSCTLFN_ARGS)
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{
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struct sysctlnode node;
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int err, state;
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char t[3];
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node = *rnode;
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state = *(int *)rnode->sysctl_data;
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(void)memset(t, '\0', sizeof(t));
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(void)snprintf(t, sizeof(t), "D%d", state);
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node.sysctl_data = &t;
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err = sysctl_lookup(SYSCTLFN_CALL(&node));
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if (err || newp == NULL)
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return err;
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return 0;
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}
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/*
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* XXX: Move this to acpi_util.c by refactoring
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* acpi_name() to optionally return a single name.
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@ -1,4 +1,4 @@
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/* $NetBSD: acpi_power.h,v 1.1 2010/04/22 18:40:09 jruoho Exp $ */
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/* $NetBSD: acpi_power.h,v 1.2 2010/04/23 18:51:31 jruoho Exp $ */
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/*-
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* Copyright (c) 2009, 2010 The NetBSD Foundation, Inc.
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@ -40,5 +40,6 @@ void acpi_power_deregister(struct acpi_devnode *);
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bool acpi_power_get(struct acpi_devnode *, int *);
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bool acpi_power_set(struct acpi_devnode *, int);
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bool acpi_power_set_from_handle(ACPI_HANDLE, int);
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void acpi_power_add(struct acpi_devnode *);
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#endif /* !_SYS_DEV_ACPI_ACPI_POWER_H */
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