Rewrite of puc(4). Significant changes are:

o  Properly use rman(9) to manage resources. This eliminates the
   need to puc-specific hacks to rman. It also allows devinfo(8)
   to be used to find out the specific assignment of resources to
   serial/parallel ports.
o  Compress the PCI device "database" by optimizing for the common
   case and to use a procedural interface to handle the exceptions.
   The procedural interface also generalizes the need to setup the
   hardware (program chipsets, program clock frequencies).
o  Eliminate the need for PUC_FASTINTR. Serdev devices are fast by
   default and non-serdev devices are handled by the bus.
o  Use the serdev I/F to collect interrupt status and to handle
   interrupts across ports in priority order.
o  Sync the PCI device configuration to include devices found in
   NetBSD and not yet merged to FreeBSD.
o  Add support for Quatech 2, 4 and 8 port UARTs.
o  Add support for a couple dozen Timedia serial cards as found
   in Linux.

1 files changed, 13 insertions, 0 deletions

diff --git a/sys/dev/ppc/ppc_puc.c b/sys/dev/ppc/ppc_puc.c
index b99e162..adcc058 100644
--- a/sys/dev/ppc/ppc_puc.c
+++ b/sys/dev/ppc/ppc_puc.c
@@ -1,4 +1,5 @@
 /*-
+ * Copyright (c) 2006 Marcel Moolenaar
  * Copyright (c) 1997-2000 Nicolas Souchu
  * Copyright (c) 2001 Alcove - Nicolas Souchu
  * All rights reserved.
@@ -35,6 +36,8 @@ __FBSDID("$FreeBSD$");
 
 #include <machine/bus.h>
 
+#include <dev/puc/puc_bus.h>
+
 #include <dev/ppbus/ppbconf.h>
 #include <dev/ppbus/ppb_msq.h>
 #include <dev/ppc/ppcvar.h>
@@ -48,6 +51,7 @@ static device_method_t ppc_puc_methods[] = {
 	/* device interface */
 	DEVMETHOD(device_probe,		ppc_puc_probe),
 	DEVMETHOD(device_attach,	ppc_attach),
+	DEVMETHOD(device_detach,	ppc_detach),
 
 	/* bus interface */
 	DEVMETHOD(bus_read_ivar,	ppc_read_ivar),
@@ -76,6 +80,15 @@ static driver_t ppc_puc_driver = {
 static int
 ppc_puc_probe(device_t dev)
 {
+	device_t parent;
+	uintptr_t type;
+
+	parent = device_get_parent(dev);
+	if (BUS_READ_IVAR(parent, dev, PUC_IVAR_TYPE, &type))
+		return (ENXIO);
+	if (type != PUC_TYPE_PARALLEL)
+		return (ENXIO);
+
 	device_set_desc(dev, "Parallel port");
 	return (ppc_probe(dev, 0));
 }