Suspend/resume support for sili(4). Not perfect yet, but prevents us from

getting stuck.  Based on an initial diff from deraadt@.

3 files changed, 40 insertions, 4 deletions

diff --git a/sys/dev/ic/sili.c b/sys/dev/ic/sili.c
index 59410879076..f8caf97ccf2 100644
--- a/sys/dev/ic/sili.c
+++ b/sys/dev/ic/sili.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sili.c,v 1.45 2010/05/19 15:27:35 oga Exp $ */
+/*	$OpenBSD: sili.c,v 1.46 2010/08/05 20:21:36 kettenis Exp $ */
 
 /*
  * Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
@@ -223,6 +223,19 @@ sili_detach(struct sili_softc *sc, int flags)
 	return (0);
 }
 
+void
+sili_resume(struct sili_softc *sc)
+{
+	int i;
+
+	/* bounce the controller */
+	sili_write(sc, SILI_REG_GC, SILI_REG_GC_GR);
+	sili_write(sc, SILI_REG_GC, 0x0);
+
+	for (i = 0; i < sc->sc_nports; i++)
+		sili_ata_probe(sc, i);
+}
+
 u_int32_t
 sili_port_intr(struct sili_port *sp, int timeout_slot)
 {
diff --git a/sys/dev/ic/silivar.h b/sys/dev/ic/silivar.h
index dab11d6f338..be30842435a 100644
--- a/sys/dev/ic/silivar.h
+++ b/sys/dev/ic/silivar.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: silivar.h,v 1.6 2008/11/23 12:46:51 dlg Exp $ */
+/*	$OpenBSD: silivar.h,v 1.7 2010/08/05 20:21:36 kettenis Exp $ */
 
 /*
  * Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
@@ -41,4 +41,6 @@ struct sili_softc {
 int	sili_attach(struct sili_softc *);
 int	sili_detach(struct sili_softc *, int);
 
+void	sili_resume(struct sili_softc *);
+
 int	sili_intr(void *);
diff --git a/sys/dev/pci/sili_pci.c b/sys/dev/pci/sili_pci.c
index 05817ab7de0..199fb6c21be 100644
--- a/sys/dev/pci/sili_pci.c
+++ b/sys/dev/pci/sili_pci.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sili_pci.c,v 1.10 2009/05/13 08:35:29 jsg Exp $ */
+/*	$OpenBSD: sili_pci.c,v 1.11 2010/08/05 20:21:36 kettenis Exp $ */
 
 /*
  * Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
@@ -37,6 +37,7 @@
 int	sili_pci_match(struct device *, void *, void *);
 void	sili_pci_attach(struct device *, struct device *, void *);
 int	sili_pci_detach(struct device *, int);
+int	sili_pci_activate(struct device *, int);
 
 struct sili_pci_softc {
 	struct sili_softc	psc_sili;
@@ -51,7 +52,8 @@ struct cfattach sili_pci_ca = {
 	sizeof(struct sili_pci_softc),
 	sili_pci_match,
 	sili_pci_attach,
-	sili_pci_detach
+	sili_pci_detach,
+	sili_pci_activate
 };
 
 struct sili_device {
@@ -196,3 +198,22 @@ sili_pci_detach(struct device *self, int flags)
 
 	return (0);
 }
+
+int
+sili_pci_activate(struct device *self, int act)
+{
+	struct sili_softc		*sc = (struct sili_softc *)self;
+	int				 rv = 0;
+
+	switch (act) {
+	case DVACT_SUSPEND:
+		rv = config_activate_children(self, act);
+		break;
+	case DVACT_RESUME:
+		sili_resume(sc);
+		rv = config_activate_children(self, act);
+		break;
+	}
+
+	return (rv);
+}