Major changes to the generic device framework for FreeBSD/alpha:

* Eliminate bus_t and make it possible for all devices to have
  attached children.

* Support dynamically extendable interfaces for drivers to replace
  both the function pointers in driver_t and bus_ops_t (which has been
  removed entirely.  Two system defined interfaces have been defined,
  'device' which is mandatory for all devices and 'bus' which is
  recommended for all devices which support attached children.

* In addition, the alpha port defines two simple interfaces 'clock'
  for attaching various real time clocks to the system and 'mcclock'
  for the many different variations of mc146818 clocks which can be
  attached to different alpha platforms.  This eliminates two more
  function pointer tables in favour of the generic method dispatch
  system provided by the device framework.

Future device interfaces may include:

* cdev and bdev interfaces for devfs to use in replacement for specfs
  and the fixed interfaces bdevsw and cdevsw.

* scsi interface to replace struct scsi_adapter (not sure how this
  works in CAM but I imagine there is something similar there).

* various tailored interfaces for different bus types such as pci,
  isa, pccard etc.

1 files changed, 5 insertions, 11 deletions

diff --git a/sys/dev/dec/mcclockvar.h b/sys/dev/dec/mcclockvar.h
index d2c0ac8..0c9f5df 100644
--- a/sys/dev/dec/mcclockvar.h
+++ b/sys/dev/dec/mcclockvar.h
@@ -27,15 +27,9 @@
  * rights to redistribute these changes.
  */
 
-struct mcclock_softc {
-	device_t	sc_dev;
-	const struct mcclock_busfns *sc_busfns;
-};
+#include "mcclock_if.h"
 
-struct mcclock_busfns {
-	void    (*mc_bf_write) __P((struct mcclock_softc *, u_int, u_int));
-	u_int   (*mc_bf_read) __P((struct mcclock_softc *, u_int));
-};
-
-void	mcclock_attach __P((struct mcclock_softc *,
-	    const struct mcclock_busfns *));
+void	mcclock_attach(device_t dev);
+void	mcclock_init(device_t);
+void	mcclock_get(device_t, time_t, struct clocktime *);
+void	mcclock_set(device_t, struct clocktime *);