PERFORCE change 37154 for review

[Nate Lawson]

http://perforce.freebsd.org/chv.cgi?CH=37154

Change 37154 by njl at njl_laptop on 2003/08/28 22:16:21

	Add my 6.0 wishlist for ACPI and newbus

Affected files ...

.. //depot/doc/6.0-TODO#4 edit

Differences ...

==== //depot/doc/6.0-TODO#4 (text+ko) ====

@@ -74,5 +74,37 @@
   pass.  Modules loaded after boot inherently always run at the last
   pass.
 
+# njl Wishlist
+- Device suspend/resume tree sweep.  Many drivers do not properly support
+  device_suspend and device_resume.  On my laptop alone, uhci(4) and
+  snd_ich (pcm(4)) both fail to work after a suspend.  We would maintain
+  a list of drivers and their suspend/resume level of support, similar to
+  the SMP status page.  The goal would be to get maintainers to fix and
+  mark their devices as working.
+
+- Fix and/or implement VGA register save/restore so that syscons is not
+  garbled after a resume.
+
+- Add a device_suspend_prep() entry that is called before device_suspend().
+  ACPI and APM could traverse the bus tree and allow each device to decide
+  whether or not to veto the suspend request.
+
+- Add a device_eject() method to allow devices to prepare to eject (i.e.
+  PC card, Hotplug PCI).  Could this be provided by device_shutdown()?
+  Call ACPI's _EJx methods for the given device as well.
+
+- Hook newbus so that ACPI Notifies are delivered to the destination
+  device if it wishes to be aware of them.
+
+- Add support for ACPI 2.0 to our implementation.  This includes implementing
+  processor power down states (C1, C2, ...), evaluating other namespaces,
+  etc.  Linux has partial 2.0 support.
+
+- Add support for vendor-specific ACPI devices (like ASUS and Toshiba
+  laptop buttons).  This can be studied in Linux.
+
+- Much ACPI bugfixing.  I'm uncomfortable with the current level of locking,
+  for instance.
+
 
 < need to insert phk's wishlist here? >