Import ACPI Dock Station support. Note that this is still very young.

Additional detach implementaions (or maybe improvement) for other
deivce drivers is required.

Reviewed by:	njl, imp
MFC after:	1 week

2 files changed, 34 insertions, 0 deletions

diff --git a/sys/dev/ppbus/lpt.c b/sys/dev/ppbus/lpt.c
index 6296da5..e968aa5 100644
--- a/sys/dev/ppbus/lpt.c
+++ b/sys/dev/ppbus/lpt.c
@@ -409,6 +409,21 @@ lpt_attach(device_t dev)
 	return (0);
 }
 
+static int
+lpt_detach(device_t dev)
+{
+	struct lpt_data *sc = DEVTOSOFTC(dev);
+
+	lpt_release_ppbus(dev);
+	if (sc->intr_resource != 0) {
+		BUS_TEARDOWN_INTR(device_get_parent(dev), dev,
+		    sc->intr_resource, sc->intr_cookie);
+		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->intr_resource);
+	}
+
+	return (0);
+}
+
 static void
 lptout(void *arg)
 {
@@ -954,6 +969,7 @@ static device_method_t lpt_methods[] = {
 	DEVMETHOD(device_identify,	lpt_identify),
 	DEVMETHOD(device_probe,		lpt_probe),
 	DEVMETHOD(device_attach,	lpt_attach),
+	DEVMETHOD(device_detach,	lpt_detach),
 
 	{ 0, 0 }
 };
diff --git a/sys/dev/ppbus/ppbconf.c b/sys/dev/ppbus/ppbconf.c
index 1ad27f8..53421a2 100644
--- a/sys/dev/ppbus/ppbconf.c
+++ b/sys/dev/ppbus/ppbconf.c
@@ -399,6 +399,23 @@ ppbus_attach(device_t dev)
 }
 
 static int
+ppbus_detach(device_t dev)
+{
+        device_t *children;
+        int nchildren, i;
+
+	/* detach & delete all children */
+	if (!device_get_children(dev, &children, &nchildren)) {
+		for (i = 0; i < nchildren; i++)
+			if (children[i])
+				device_delete_child(dev, children[i]);
+		free(children, M_TEMP);
+        }
+
+	return (0);
+}
+
+static int
 ppbus_setup_intr(device_t bus, device_t child, struct resource *r, int flags,
 			void (*ihand)(void *), void *arg, void **cookiep)
 {
@@ -539,6 +556,7 @@ static device_method_t ppbus_methods[] = {
         /* device interface */
 	DEVMETHOD(device_probe,         ppbus_probe),
 	DEVMETHOD(device_attach,        ppbus_attach),
+	DEVMETHOD(device_detach,        ppbus_detach),
   
         /* bus interface */
 	DEVMETHOD(bus_add_child,	ppbus_add_child),