freebsd-nq/sys/dev/sound
Maxime Henrion 07159f9c56 Cleanup of the d_mmap_t interface.
- Get rid of the useless atop() / pmap_phys_address() detour.  The
  device mmap handlers must now give back the physical address
  without atop()'ing it.
- Don't borrow the physical address of the mapping in the returned
  int.  Now we properly pass a vm_offset_t * and expect it to be
  filled by the mmap handler when the mapping was successful.  The
  mmap handler must now return 0 when successful, any other value
  is considered as an error.  Previously, returning -1 was the only
  way to fail.  This change thus accidentally fixes some devices
  which were bogusly returning errno constants which would have been
  considered as addresses by the device pager.
- Garbage collect the poorly named pmap_phys_address() now that it's
  no longer used.
- Convert all the d_mmap_t consumers to the new API.

I'm still not sure wheter we need a __FreeBSD_version bump for this,
since and we didn't guarantee API/ABI stability until 5.1-RELEASE.

Discussed with:		alc, phk, jake
Reviewed by:		peter
Compile-tested on:	LINT (i386), GENERIC (alpha and sparc64)
Runtime-tested on:	i386
2003-02-25 03:21:22 +00:00
..
isa Include <isa/isavar.h> to fix building on alpha. 2003-02-08 07:05:07 +00:00
midi Back out M_* changes, per decision of the TRB. 2003-02-19 05:47:46 +00:00
pci Fix compilation on alpha. Pointy hat to Marcel. 2003-02-23 01:06:58 +00:00
pcm Cleanup of the d_mmap_t interface. 2003-02-25 03:21:22 +00:00
usb if the list of supported formats is empty, fail the attach instead of 2002-11-25 17:03:39 +00:00
chip.h
driver.c