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[src/trunk]: src/sys/dev/acpi Preparing a device for wakeup involves:
details: https://anonhg.NetBSD.org/src/rev/13715568a4f3
branches: trunk
changeset: 752756:13715568a4f3
user: jruoho <jruoho%NetBSD.org@localhost>
date: Fri Mar 05 21:01:44 2010 +0000
description:
Preparing a device for wakeup involves:
(a) turning on all power resources required by the device; and
(b) executing _DSW (or _PSW) control method.
This implements (b). Ok jmcneill@.
diffstat:
sys/dev/acpi/acpi.c | 6 +-
sys/dev/acpi/acpi_lid.c | 59 +---------------------------------
sys/dev/acpi/acpi_wakedev.c | 75 +++++++++++++++++++++++++++++++++++++++++++-
sys/dev/acpi/acpi_wakedev.h | 4 +-
4 files changed, 80 insertions(+), 64 deletions(-)
diffs (258 lines):
diff -r 369c506259f4 -r 13715568a4f3 sys/dev/acpi/acpi.c
--- a/sys/dev/acpi/acpi.c Fri Mar 05 20:10:05 2010 +0000
+++ b/sys/dev/acpi/acpi.c Fri Mar 05 21:01:44 2010 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi.c,v 1.155 2010/03/05 14:00:16 jruoho Exp $ */
+/* $NetBSD: acpi.c,v 1.156 2010/03/05 21:01:44 jruoho Exp $ */
/*-
* Copyright (c) 2003, 2007 The NetBSD Foundation, Inc.
@@ -70,7 +70,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.155 2010/03/05 14:00:16 jruoho Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.156 2010/03/05 21:01:44 jruoho Exp $");
#include "opt_acpi.h"
#include "opt_pcifixup.h"
@@ -1519,7 +1519,7 @@
break;
}
- acpi_wakedev_commit(sc);
+ acpi_wakedev_commit(sc, state);
if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_Q_NONE)) {
aprint_error_dev(sc->sc_dev, "aborting suspend\n");
diff -r 369c506259f4 -r 13715568a4f3 sys/dev/acpi/acpi_lid.c
--- a/sys/dev/acpi/acpi_lid.c Fri Mar 05 20:10:05 2010 +0000
+++ b/sys/dev/acpi/acpi_lid.c Fri Mar 05 21:01:44 2010 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_lid.c,v 1.36 2010/03/05 14:00:16 jruoho Exp $ */
+/* $NetBSD: acpi_lid.c,v 1.37 2010/03/05 21:01:44 jruoho Exp $ */
/*
* Copyright 2001, 2003 Wasabi Systems, Inc.
@@ -40,7 +40,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_lid.c,v 1.36 2010/03/05 14:00:16 jruoho Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_lid.c,v 1.37 2010/03/05 21:01:44 jruoho Exp $");
#include <sys/param.h>
#include <sys/device.h>
@@ -69,8 +69,6 @@
static int acpilid_detach(device_t, int);
static void acpilid_status_changed(void *);
static void acpilid_notify_handler(ACPI_HANDLE, UINT32, void *);
-static void acpilid_wake_event(device_t, bool);
-static bool acpilid_suspend(device_t, const pmf_qual_t *);
CFATTACH_DECL_NEW(acpilid, sizeof(struct acpilid_softc),
acpilid_match, acpilid_attach, acpilid_detach, NULL);
@@ -111,8 +109,8 @@
sc->sc_smpsw.smpsw_name = device_xname(self);
sc->sc_smpsw.smpsw_type = PSWITCH_TYPE_LID;
+ (void)pmf_device_register(self, NULL, NULL);
(void)sysmon_pswitch_register(&sc->sc_smpsw);
- (void)pmf_device_register(self, acpilid_suspend, NULL);
rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle,
ACPI_DEVICE_NOTIFY, acpilid_notify_handler, self);
@@ -139,47 +137,6 @@
return 0;
}
-static void
-acpilid_wake_event(device_t dv, bool enable)
-{
- struct acpilid_softc *sc = device_private(dv);
- ACPI_OBJECT_LIST arg;
- ACPI_OBJECT obj[3];
- ACPI_STATUS rv;
-
- /*
- * First try to call the Device Sleep Wake control method, _DSW.
- * Only if this is not available, resort to to the Power State
- * Wake control method, _PSW, which was deprecated in ACPI 3.0.
- */
- obj[0].Integer.Value = enable ? 1 : 0;
- obj[1].Integer.Value = obj[2].Integer.Value = 0;
- obj[0].Type = obj[1].Type = obj[2].Type = ACPI_TYPE_INTEGER;
-
- arg.Count = 3;
- arg.Pointer = obj;
-
- rv = AcpiEvaluateObject(sc->sc_node->ad_handle, "_DSW", &arg, NULL);
-
- if (ACPI_SUCCESS(rv))
- return;
-
- if (rv != AE_NOT_FOUND)
- goto fail;
-
- rv = acpi_eval_set_integer(sc->sc_node->ad_handle, "_PSW",
- enable ? 1 : 0);
-
- if (ACPI_FAILURE(rv) && rv != AE_NOT_FOUND)
- goto fail;
-
- return;
-
-fail:
- aprint_error_dev(dv, "unable to evaluate wake control method: %s\n",
- AcpiFormatException(rv));
-}
-
/*
* acpilid_status_changed:
*
@@ -223,16 +180,6 @@
}
}
-static bool
-acpilid_suspend(device_t dv, const pmf_qual_t *qual)
-{
- struct acpilid_softc *sc = device_private(dv);
-
- acpilid_wake_event(dv, sc->sc_status == 0);
-
- return true;
-}
-
#ifdef _MODULE
MODULE(MODULE_CLASS_DRIVER, acpilid, NULL);
diff -r 369c506259f4 -r 13715568a4f3 sys/dev/acpi/acpi_wakedev.c
--- a/sys/dev/acpi/acpi_wakedev.c Fri Mar 05 20:10:05 2010 +0000
+++ b/sys/dev/acpi/acpi_wakedev.c Fri Mar 05 21:01:44 2010 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_wakedev.c,v 1.3 2010/03/05 14:00:17 jruoho Exp $ */
+/* $NetBSD: acpi_wakedev.c,v 1.4 2010/03/05 21:01:44 jruoho Exp $ */
/*-
* Copyright (c) 2009 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_wakedev.c,v 1.3 2010/03/05 14:00:17 jruoho Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_wakedev.c,v 1.4 2010/03/05 21:01:44 jruoho Exp $");
#include <sys/param.h>
#include <sys/device.h>
@@ -40,6 +40,8 @@
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpi_wakedev.h>
+static void acpi_wakedev_prepare(struct acpi_devnode *, int, int);
+
struct acpi_wakedev;
static TAILQ_HEAD(, acpi_wakedev) acpi_wakedevlist =
@@ -173,16 +175,83 @@
}
void
-acpi_wakedev_commit(struct acpi_softc *sc)
+acpi_wakedev_commit(struct acpi_softc *sc, int state)
{
struct acpi_wakedev *aw;
+ /*
+ * As noted in ACPI 3.0 (p. 243), preparing
+ * a device for wakeup is a two-step process:
+ *
+ * 1. Enable all power resources in _PRW.
+ *
+ * 2. If present, execute _DSW/_PSW method.
+ *
+ * XXX: The first one is yet to be implemented.
+ */
TAILQ_FOREACH(aw, &acpi_wakedevlist, aw_list) {
+
if (aw->aw_enabled) {
aprint_debug_dev(sc->sc_dev, "set wake GPE (%s)\n",
aw->aw_node->ad_name);
acpi_set_wake_gpe(aw->aw_node->ad_handle);
} else
acpi_clear_wake_gpe(aw->aw_node->ad_handle);
+
+ acpi_wakedev_prepare(aw->aw_node, aw->aw_enabled, state);
}
}
+
+static void
+acpi_wakedev_prepare(struct acpi_devnode *ad, int enable, int state)
+{
+ ACPI_OBJECT_LIST arg;
+ ACPI_OBJECT obj[3];
+ ACPI_STATUS rv;
+
+ /*
+ * First try to call the Device Sleep Wake control method, _DSW.
+ * Only if this is not available, resort to to the Power State
+ * Wake control method, _PSW, which was deprecated in ACPI 3.0.
+ *
+ * The arguments to these methods are as follows:
+ *
+ * arg0 arg1 arg2
+ * ---- ---- ----
+ * _PSW 0: disable
+ * 1: enable
+ *
+ * _DSW 0: disable 0: S0 0: D0
+ * 1: enable 1: S1 1: D0 or D1
+ * 2: D0, D1, or D2
+ * x: Sx 3: D0, D1, D2 or D3
+ */
+ arg.Count = 3;
+ arg.Pointer = obj;
+
+ obj[0].Integer.Value = enable;
+ obj[1].Integer.Value = state;
+ obj[2].Integer.Value = 3;
+
+ obj[0].Type = obj[1].Type = obj[2].Type = ACPI_TYPE_INTEGER;
+
+ rv = AcpiEvaluateObject(ad->ad_handle, "_DSW", &arg, NULL);
+
+ if (ACPI_SUCCESS(rv))
+ return;
+
+ if (rv != AE_NOT_FOUND)
+ goto fail;
+
+ rv = acpi_eval_set_integer(ad->ad_handle, "_PSW", enable);
+
+ if (ACPI_FAILURE(rv) && rv != AE_NOT_FOUND)
+ goto fail;
+
+ return;
+
+fail:
+ aprint_error_dev(ad->ad_device, "failed to evaluate wake "
+ "control method: %s\n", AcpiFormatException(rv));
+}
+
diff -r 369c506259f4 -r 13715568a4f3 sys/dev/acpi/acpi_wakedev.h
--- a/sys/dev/acpi/acpi_wakedev.h Fri Mar 05 20:10:05 2010 +0000
+++ b/sys/dev/acpi/acpi_wakedev.h Fri Mar 05 21:01:44 2010 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_wakedev.h,v 1.2 2010/03/05 08:30:48 jruoho Exp $ */
+/* $NetBSD: acpi_wakedev.h,v 1.3 2010/03/05 21:01:44 jruoho Exp $ */
/*-
* Copyright (c) 2009 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -30,6 +30,6 @@
#define _SYS_DEV_ACPI_ACPI_WAKEDEV_H
int acpi_wakedev_scan(struct acpi_softc *);
-void acpi_wakedev_commit(struct acpi_softc *);
+void acpi_wakedev_commit(struct acpi_softc *, int);
#endif /* !_SYS_DEV_ACPI_ACPI_WAKEDEV_H */
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