remove unused isa/cs4231var.h

correct indentation

no functional change, found by smatch warnings
ok miod@ bluhm@

Replace audio(9) get_props() with duplex check in open() in partial duplex drivers

Make drivers which do *not* adverise AUDIO_PROP_FULLDPLEX return ENXIO
in their open() if full-duplex mode was requested.

This way, sys/dev/audio.c:audio_open() will fail immediately rather than
later through the to-be-removed get_props() check.

This is the first round for drivers with logic in their get_props(), i.e.
those that only support full-duplex mode for specific hardware:

ess(4), gus(4), pas(4) and sb(4)

All of these are i386/GENERIC only and share code through
sys/dev/isa/{ad1848,sbdsp}{.c,var.h} which are not used by any other kernel.

i386/GENERIC.MP builds and boots with this diff.
OK ratchov miod

Remove unused AUDIO_PROP_{MMAP,INDEPENDENT}

AUDIO_PROP_FULLDUPLEX is the only audio(9) in use, the other two died with
commit 1cf2860827c8ca659d8097d8da94a5ae5b888c53
Author: ratchov <ratchov@openbsd.org>
Date: Thu Jun 25 06:43:45 2015 +0000

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

but remained defined and set in drivers.

and the following merely moved them when they were dead code already:

commit 9215aa3dfad387bca877a805534df6dcfe8722eb
Author: ratchov <ratchov@openbsd.org>
Date: Wed Aug 31 07:22:43 2016 +0000

Delete unused ioctls and associated macros. Move macros that are still
used internally by low-level drivers from sys/audioio.h to
dev/audio_if.h instead of deleting them.

None of this is used in base or ports; codesearch.debian.net only shows
AUDIO_PROP_{CAPTURE,PLAYBACK} in firefox-esr, mozjs and cubeb.

ratchov points out that audio_if.h and audioio.h are private interfaces
and the codesearch shows SunOS and NetBSD bits (#ifdef'd out on OpenBSD).

OK ratchov

spelling
feedback and ok tb@ jmc@ ok ratchov@

Remove drain(), query_encoding(), mappage() and get_default_params()
methods from all audio drivers and from the audio_if structure as they
are never called.

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

Remove support for ADPCM encoding which isn't used nowadays and
not available to programs anyway.

Remove all audio format conversion code from the kernel (btw holding
the kernel_lock), as we already do better conversions in
user-mode. Yet, no need for every single driver to fiddle with the
conversion code as they are done transparently by common MI code. With
help from armani and miod, support from mpi

ok armani@

Fix the indentation. While originally I thought this was an if statement
with missing braces ratchov checked the specs to see the current
behaviour is correct, just poorly formatted.

ok ratchov@

remove uneeded proc.h includes
ok mpi@ kspillner@

Introduce a global interrupt-aware mutex protecting data
structures (including sound-card registers) from concurent
access by syscall and interrupt code-paths. Since critical
sections remain the same, calls to splraise/spllower can be
safely replaced by calls to mtx_enter/mtx_leave with two
exceptions: (1) mutexes are not reentrant (the inner splraise
is thus removed), and (2) we're not allowed to sleep with a
mutex (either msleep is used or the mutex is released before
sleeping).

ok and help from kettenis, a lot of work from armani

fix typo preventing compilation with AUDIO_DEBUG

missed a couple indents in previous

ANSI/style(9), no binary change

add two new members to structs audio_encoding and audio_prinfo.
for both structs, the new members are 'bps' and 'msb', which
describe the number of bytes per sample and data alignment in the
sample, respectively. drivers must properly set these fields in
the 'query_encoding', 'set_parameters' and 'get_default_params'
hardware interface methods.

discussed with ratchov, deraadt

* use audio(9)'s DMA trigger methods instead of the init/start
methods. the AD1848 DMA engine runs continuously and doesn't
need to be started/stopped or otherwise manipulated for each
block. makes the driver a bit more efficient.
* allow "Mode 2" capable chips such as the CS4231 to work in "Mode 1"
when there is only one DMA channel, instead of forcing it into
"Mode 2", which expects two DMA channels. allows recording to
work for "Mode 2" capable devices when there is only one DMA
channel.
* service both playback and recording interrupts in full-duplex
mode, instead of only playback interrupts. allows "Mode 2"
capable chips to work in full-duplex mode.
* fix checks for sample rate/format recalibration completion. gets
rid of busy loops that briefly "hang" the kernel when the device is
opened and/or reconfigured.

audio encoding conversion cleanup

- the endianness of the conversions don't depend on the endianness
of machine the conversions are built on, but the endianness of the
audio data itself. choose encoding conversions explicitly, instead
of relying on #defines based on the endianness of the machine.
- replace home-grown conversions with comparable conversions in
auconv.c and mulaw.c
- use the proper conversion for ulinear_be:16 -> slinear_le:16 in
auixp(4)

thanks ajacoutot@ and sthen@ for !x86 testing

remove "0x" in front of %p in printfs.

eyeballed by krw@

make sure aligment does not return zero block size

remove uvm_extern.h

tested on alpha, i386, powerpc, sparc64, m68k.

ok miod@

Do not hardcode the dma channel to 1, use the softc settings instead.
mickey@ ok

strcpy/sprintf cleanup of sys/dev. miod@, deraadt@ says to commit.

be consistant on Hz vs hz

spelling; from Brian Poole <raj@cerias.purdue.edu>

First round of __P removal in sys

make all audio drivers use the new allocm and round_buffersize decl's.
will ease porting, and generally cleans up a bit

branches: 1.23.2;
Replace inclusion of <vm/foo.h> with the correct <uvm/bar.h> when necessary.
(Look ma, I might have broken the tree)

Change the audio_hm_if->mappage interface to return paddr_t and take off_t
as the mmap offset.

Call isa_malloc with drq < 4, in case 8-bit DMA channels with more
restrictive boundaries are used

protect more reads and rights^Wwrites w/ spl; avoid inline which blows the code in twice

branches: 1.19.4;
A probe that fails on an otherwise working card, removed

further fixes for strange wss isapnp cards; apollo@slcnet.net

support another version of the chipset

remove unneeded pio.h inclusion

Die, NEWCONFIG

work around some ugly glitches

recognize CS4236B; netbsd

Fix the name of the ulinear_be mode; netbsd

Cleaned up AD1848 driver and added driver for Yamaha OPL3-SA3 to tree.

update audio from NetBSD, mostly by Lennart Augustsson <augustss@cs.chalmers.se>

move to current OpenBSD isadma API

sync with NETBSD 30/3/97 + adapating aria.c

silence probe more

fix recording; from jabaker@grail.cba.csuohio.edu

sync with 0504 -- prototypes and bus.h

NetBSD 960317 merge

From NetBSD: merge of 960217

from netbsd; Convert IRQ, DRQ, and port numbers to int

branches: 1.1.1;
Initial revision

correct indentation

no functional change, found by smatch warnings
ok miod@ bluhm@

Replace audio(9) get_props() with duplex check in open() in partial duplex drivers

Make drivers which do *not* adverise AUDIO_PROP_FULLDPLEX return ENXIO
in their open() if full-duplex mode was requested.

This way, sys/dev/audio.c:audio_open() will fail immediately rather than
later through the to-be-removed get_props() check.

This is the first round for drivers with logic in their get_props(), i.e.
those that only support full-duplex mode for specific hardware:

ess(4), gus(4), pas(4) and sb(4)

All of these are i386/GENERIC only and share code through
sys/dev/isa/{ad1848,sbdsp}{.c,var.h} which are not used by any other kernel.

i386/GENERIC.MP builds and boots with this diff.
OK ratchov miod

Remove unused AUDIO_PROP_{MMAP,INDEPENDENT}

AUDIO_PROP_FULLDUPLEX is the only audio(9) in use, the other two died with
commit 1cf2860827c8ca659d8097d8da94a5ae5b888c53
Author: ratchov <ratchov@openbsd.org>
Date: Thu Jun 25 06:43:45 2015 +0000

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

but remained defined and set in drivers.

and the following merely moved them when they were dead code already:

commit 9215aa3dfad387bca877a805534df6dcfe8722eb
Author: ratchov <ratchov@openbsd.org>
Date: Wed Aug 31 07:22:43 2016 +0000

Delete unused ioctls and associated macros. Move macros that are still
used internally by low-level drivers from sys/audioio.h to
dev/audio_if.h instead of deleting them.

None of this is used in base or ports; codesearch.debian.net only shows
AUDIO_PROP_{CAPTURE,PLAYBACK} in firefox-esr, mozjs and cubeb.

ratchov points out that audio_if.h and audioio.h are private interfaces
and the codesearch shows SunOS and NetBSD bits (#ifdef'd out on OpenBSD).

OK ratchov

spelling
feedback and ok tb@ jmc@ ok ratchov@

Remove drain(), query_encoding(), mappage() and get_default_params()
methods from all audio drivers and from the audio_if structure as they
are never called.

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

Remove support for ADPCM encoding which isn't used nowadays and
not available to programs anyway.

Remove all audio format conversion code from the kernel (btw holding
the kernel_lock), as we already do better conversions in
user-mode. Yet, no need for every single driver to fiddle with the
conversion code as they are done transparently by common MI code. With
help from armani and miod, support from mpi

ok armani@

Fix the indentation. While originally I thought this was an if statement
with missing braces ratchov checked the specs to see the current
behaviour is correct, just poorly formatted.

ok ratchov@

remove uneeded proc.h includes
ok mpi@ kspillner@

Introduce a global interrupt-aware mutex protecting data
structures (including sound-card registers) from concurent
access by syscall and interrupt code-paths. Since critical
sections remain the same, calls to splraise/spllower can be
safely replaced by calls to mtx_enter/mtx_leave with two
exceptions: (1) mutexes are not reentrant (the inner splraise
is thus removed), and (2) we're not allowed to sleep with a
mutex (either msleep is used or the mutex is released before
sleeping).

ok and help from kettenis, a lot of work from armani

fix typo preventing compilation with AUDIO_DEBUG

missed a couple indents in previous

ANSI/style(9), no binary change

add two new members to structs audio_encoding and audio_prinfo.
for both structs, the new members are 'bps' and 'msb', which
describe the number of bytes per sample and data alignment in the
sample, respectively. drivers must properly set these fields in
the 'query_encoding', 'set_parameters' and 'get_default_params'
hardware interface methods.

discussed with ratchov, deraadt

* use audio(9)'s DMA trigger methods instead of the init/start
methods. the AD1848 DMA engine runs continuously and doesn't
need to be started/stopped or otherwise manipulated for each
block. makes the driver a bit more efficient.
* allow "Mode 2" capable chips such as the CS4231 to work in "Mode 1"
when there is only one DMA channel, instead of forcing it into
"Mode 2", which expects two DMA channels. allows recording to
work for "Mode 2" capable devices when there is only one DMA
channel.
* service both playback and recording interrupts in full-duplex
mode, instead of only playback interrupts. allows "Mode 2"
capable chips to work in full-duplex mode.
* fix checks for sample rate/format recalibration completion. gets
rid of busy loops that briefly "hang" the kernel when the device is
opened and/or reconfigured.

audio encoding conversion cleanup

- the endianness of the conversions don't depend on the endianness
of machine the conversions are built on, but the endianness of the
audio data itself. choose encoding conversions explicitly, instead
of relying on #defines based on the endianness of the machine.
- replace home-grown conversions with comparable conversions in
auconv.c and mulaw.c
- use the proper conversion for ulinear_be:16 -> slinear_le:16 in
auixp(4)

thanks ajacoutot@ and sthen@ for !x86 testing

remove "0x" in front of %p in printfs.

eyeballed by krw@

make sure aligment does not return zero block size

remove uvm_extern.h

tested on alpha, i386, powerpc, sparc64, m68k.

ok miod@

Do not hardcode the dma channel to 1, use the softc settings instead.
mickey@ ok

strcpy/sprintf cleanup of sys/dev. miod@, deraadt@ says to commit.

be consistant on Hz vs hz

spelling; from Brian Poole <raj@cerias.purdue.edu>

First round of __P removal in sys

make all audio drivers use the new allocm and round_buffersize decl's.
will ease porting, and generally cleans up a bit

branches: 1.23.2;
Replace inclusion of <vm/foo.h> with the correct <uvm/bar.h> when necessary.
(Look ma, I might have broken the tree)

Change the audio_hm_if->mappage interface to return paddr_t and take off_t
as the mmap offset.

Call isa_malloc with drq < 4, in case 8-bit DMA channels with more
restrictive boundaries are used

protect more reads and rights^Wwrites w/ spl; avoid inline which blows the code in twice

branches: 1.19.4;
A probe that fails on an otherwise working card, removed

further fixes for strange wss isapnp cards; apollo@slcnet.net

support another version of the chipset

remove unneeded pio.h inclusion

Die, NEWCONFIG

work around some ugly glitches

recognize CS4236B; netbsd

Fix the name of the ulinear_be mode; netbsd

Cleaned up AD1848 driver and added driver for Yamaha OPL3-SA3 to tree.

update audio from NetBSD, mostly by Lennart Augustsson <augustss@cs.chalmers.se>

move to current OpenBSD isadma API

sync with NETBSD 30/3/97 + adapating aria.c

silence probe more

fix recording; from jabaker@grail.cba.csuohio.edu

sync with 0504 -- prototypes and bus.h

NetBSD 960317 merge

From NetBSD: merge of 960217

from netbsd; Convert IRQ, DRQ, and port numbers to int

branches: 1.1.1;
Initial revision

Replace audio(9) get_props() with duplex check in open() in partial duplex drivers

Make drivers which do *not* adverise AUDIO_PROP_FULLDPLEX return ENXIO
in their open() if full-duplex mode was requested.

This way, sys/dev/audio.c:audio_open() will fail immediately rather than
later through the to-be-removed get_props() check.

This is the first round for drivers with logic in their get_props(), i.e.
those that only support full-duplex mode for specific hardware:

ess(4), gus(4), pas(4) and sb(4)

All of these are i386/GENERIC only and share code through
sys/dev/isa/{ad1848,sbdsp}{.c,var.h} which are not used by any other kernel.

i386/GENERIC.MP builds and boots with this diff.
OK ratchov miod

Remove unused AUDIO_PROP_{MMAP,INDEPENDENT}

AUDIO_PROP_FULLDUPLEX is the only audio(9) in use, the other two died with
commit 1cf2860827c8ca659d8097d8da94a5ae5b888c53
Author: ratchov <ratchov@openbsd.org>
Date: Thu Jun 25 06:43:45 2015 +0000

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

but remained defined and set in drivers.

and the following merely moved them when they were dead code already:

commit 9215aa3dfad387bca877a805534df6dcfe8722eb
Author: ratchov <ratchov@openbsd.org>
Date: Wed Aug 31 07:22:43 2016 +0000

Delete unused ioctls and associated macros. Move macros that are still
used internally by low-level drivers from sys/audioio.h to
dev/audio_if.h instead of deleting them.

None of this is used in base or ports; codesearch.debian.net only shows
AUDIO_PROP_{CAPTURE,PLAYBACK} in firefox-esr, mozjs and cubeb.

ratchov points out that audio_if.h and audioio.h are private interfaces
and the codesearch shows SunOS and NetBSD bits (#ifdef'd out on OpenBSD).

OK ratchov

spelling
feedback and ok tb@ jmc@ ok ratchov@

Remove drain(), query_encoding(), mappage() and get_default_params()
methods from all audio drivers and from the audio_if structure as they
are never called.

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

Remove support for ADPCM encoding which isn't used nowadays and
not available to programs anyway.

Remove all audio format conversion code from the kernel (btw holding
the kernel_lock), as we already do better conversions in
user-mode. Yet, no need for every single driver to fiddle with the
conversion code as they are done transparently by common MI code. With
help from armani and miod, support from mpi

ok armani@

Fix the indentation. While originally I thought this was an if statement
with missing braces ratchov checked the specs to see the current
behaviour is correct, just poorly formatted.

ok ratchov@

remove uneeded proc.h includes
ok mpi@ kspillner@

Introduce a global interrupt-aware mutex protecting data
structures (including sound-card registers) from concurent
access by syscall and interrupt code-paths. Since critical
sections remain the same, calls to splraise/spllower can be
safely replaced by calls to mtx_enter/mtx_leave with two
exceptions: (1) mutexes are not reentrant (the inner splraise
is thus removed), and (2) we're not allowed to sleep with a
mutex (either msleep is used or the mutex is released before
sleeping).

ok and help from kettenis, a lot of work from armani

fix typo preventing compilation with AUDIO_DEBUG

missed a couple indents in previous

ANSI/style(9), no binary change

add two new members to structs audio_encoding and audio_prinfo.
for both structs, the new members are 'bps' and 'msb', which
describe the number of bytes per sample and data alignment in the
sample, respectively. drivers must properly set these fields in
the 'query_encoding', 'set_parameters' and 'get_default_params'
hardware interface methods.

discussed with ratchov, deraadt

* use audio(9)'s DMA trigger methods instead of the init/start
methods. the AD1848 DMA engine runs continuously and doesn't
need to be started/stopped or otherwise manipulated for each
block. makes the driver a bit more efficient.
* allow "Mode 2" capable chips such as the CS4231 to work in "Mode 1"
when there is only one DMA channel, instead of forcing it into
"Mode 2", which expects two DMA channels. allows recording to
work for "Mode 2" capable devices when there is only one DMA
channel.
* service both playback and recording interrupts in full-duplex
mode, instead of only playback interrupts. allows "Mode 2"
capable chips to work in full-duplex mode.
* fix checks for sample rate/format recalibration completion. gets
rid of busy loops that briefly "hang" the kernel when the device is
opened and/or reconfigured.

audio encoding conversion cleanup

- the endianness of the conversions don't depend on the endianness
of machine the conversions are built on, but the endianness of the
audio data itself. choose encoding conversions explicitly, instead
of relying on #defines based on the endianness of the machine.
- replace home-grown conversions with comparable conversions in
auconv.c and mulaw.c
- use the proper conversion for ulinear_be:16 -> slinear_le:16 in
auixp(4)

thanks ajacoutot@ and sthen@ for !x86 testing

remove "0x" in front of %p in printfs.

eyeballed by krw@

make sure aligment does not return zero block size

remove uvm_extern.h

tested on alpha, i386, powerpc, sparc64, m68k.

ok miod@

Do not hardcode the dma channel to 1, use the softc settings instead.
mickey@ ok

strcpy/sprintf cleanup of sys/dev. miod@, deraadt@ says to commit.

be consistant on Hz vs hz

spelling; from Brian Poole <raj@cerias.purdue.edu>

First round of __P removal in sys

make all audio drivers use the new allocm and round_buffersize decl's.
will ease porting, and generally cleans up a bit

branches: 1.23.2;
Replace inclusion of <vm/foo.h> with the correct <uvm/bar.h> when necessary.
(Look ma, I might have broken the tree)

Change the audio_hm_if->mappage interface to return paddr_t and take off_t
as the mmap offset.

Call isa_malloc with drq < 4, in case 8-bit DMA channels with more
restrictive boundaries are used

protect more reads and rights^Wwrites w/ spl; avoid inline which blows the code in twice

branches: 1.19.4;
A probe that fails on an otherwise working card, removed

further fixes for strange wss isapnp cards; apollo@slcnet.net

support another version of the chipset

remove unneeded pio.h inclusion

Die, NEWCONFIG

work around some ugly glitches

recognize CS4236B; netbsd

Fix the name of the ulinear_be mode; netbsd

Cleaned up AD1848 driver and added driver for Yamaha OPL3-SA3 to tree.

update audio from NetBSD, mostly by Lennart Augustsson <augustss@cs.chalmers.se>

move to current OpenBSD isadma API

sync with NETBSD 30/3/97 + adapating aria.c

silence probe more

fix recording; from jabaker@grail.cba.csuohio.edu

sync with 0504 -- prototypes and bus.h

NetBSD 960317 merge

From NetBSD: merge of 960217

from netbsd; Convert IRQ, DRQ, and port numbers to int

branches: 1.1.1;
Initial revision

Remove unused AUDIO_PROP_{MMAP,INDEPENDENT}

AUDIO_PROP_FULLDUPLEX is the only audio(9) in use, the other two died with
commit 1cf2860827c8ca659d8097d8da94a5ae5b888c53
Author: ratchov <ratchov@openbsd.org>
Date: Thu Jun 25 06:43:45 2015 +0000

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

but remained defined and set in drivers.

and the following merely moved them when they were dead code already:

commit 9215aa3dfad387bca877a805534df6dcfe8722eb
Author: ratchov <ratchov@openbsd.org>
Date: Wed Aug 31 07:22:43 2016 +0000

Delete unused ioctls and associated macros. Move macros that are still
used internally by low-level drivers from sys/audioio.h to
dev/audio_if.h instead of deleting them.

None of this is used in base or ports; codesearch.debian.net only shows
AUDIO_PROP_{CAPTURE,PLAYBACK} in firefox-esr, mozjs and cubeb.

ratchov points out that audio_if.h and audioio.h are private interfaces
and the codesearch shows SunOS and NetBSD bits (#ifdef'd out on OpenBSD).

OK ratchov

spelling
feedback and ok tb@ jmc@ ok ratchov@

Remove drain(), query_encoding(), mappage() and get_default_params()
methods from all audio drivers and from the audio_if structure as they
are never called.

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

Remove support for ADPCM encoding which isn't used nowadays and
not available to programs anyway.

Remove all audio format conversion code from the kernel (btw holding
the kernel_lock), as we already do better conversions in
user-mode. Yet, no need for every single driver to fiddle with the
conversion code as they are done transparently by common MI code. With
help from armani and miod, support from mpi

ok armani@

Fix the indentation. While originally I thought this was an if statement
with missing braces ratchov checked the specs to see the current
behaviour is correct, just poorly formatted.

ok ratchov@

remove uneeded proc.h includes
ok mpi@ kspillner@

Introduce a global interrupt-aware mutex protecting data
structures (including sound-card registers) from concurent
access by syscall and interrupt code-paths. Since critical
sections remain the same, calls to splraise/spllower can be
safely replaced by calls to mtx_enter/mtx_leave with two
exceptions: (1) mutexes are not reentrant (the inner splraise
is thus removed), and (2) we're not allowed to sleep with a
mutex (either msleep is used or the mutex is released before
sleeping).

ok and help from kettenis, a lot of work from armani

fix typo preventing compilation with AUDIO_DEBUG

missed a couple indents in previous

ANSI/style(9), no binary change

add two new members to structs audio_encoding and audio_prinfo.
for both structs, the new members are 'bps' and 'msb', which
describe the number of bytes per sample and data alignment in the
sample, respectively. drivers must properly set these fields in
the 'query_encoding', 'set_parameters' and 'get_default_params'
hardware interface methods.

discussed with ratchov, deraadt

* use audio(9)'s DMA trigger methods instead of the init/start
methods. the AD1848 DMA engine runs continuously and doesn't
need to be started/stopped or otherwise manipulated for each
block. makes the driver a bit more efficient.
* allow "Mode 2" capable chips such as the CS4231 to work in "Mode 1"
when there is only one DMA channel, instead of forcing it into
"Mode 2", which expects two DMA channels. allows recording to
work for "Mode 2" capable devices when there is only one DMA
channel.
* service both playback and recording interrupts in full-duplex
mode, instead of only playback interrupts. allows "Mode 2"
capable chips to work in full-duplex mode.
* fix checks for sample rate/format recalibration completion. gets
rid of busy loops that briefly "hang" the kernel when the device is
opened and/or reconfigured.

audio encoding conversion cleanup

- the endianness of the conversions don't depend on the endianness
of machine the conversions are built on, but the endianness of the
audio data itself. choose encoding conversions explicitly, instead
of relying on #defines based on the endianness of the machine.
- replace home-grown conversions with comparable conversions in
auconv.c and mulaw.c
- use the proper conversion for ulinear_be:16 -> slinear_le:16 in
auixp(4)

thanks ajacoutot@ and sthen@ for !x86 testing

remove "0x" in front of %p in printfs.

eyeballed by krw@

make sure aligment does not return zero block size

remove uvm_extern.h

tested on alpha, i386, powerpc, sparc64, m68k.

ok miod@

Do not hardcode the dma channel to 1, use the softc settings instead.
mickey@ ok

strcpy/sprintf cleanup of sys/dev. miod@, deraadt@ says to commit.

be consistant on Hz vs hz

spelling; from Brian Poole <raj@cerias.purdue.edu>

First round of __P removal in sys

make all audio drivers use the new allocm and round_buffersize decl's.
will ease porting, and generally cleans up a bit

branches: 1.23.2;
Replace inclusion of <vm/foo.h> with the correct <uvm/bar.h> when necessary.
(Look ma, I might have broken the tree)

Change the audio_hm_if->mappage interface to return paddr_t and take off_t
as the mmap offset.

Call isa_malloc with drq < 4, in case 8-bit DMA channels with more
restrictive boundaries are used

protect more reads and rights^Wwrites w/ spl; avoid inline which blows the code in twice

branches: 1.19.4;
A probe that fails on an otherwise working card, removed

further fixes for strange wss isapnp cards; apollo@slcnet.net

support another version of the chipset

remove unneeded pio.h inclusion

Die, NEWCONFIG

work around some ugly glitches

recognize CS4236B; netbsd

Fix the name of the ulinear_be mode; netbsd

Cleaned up AD1848 driver and added driver for Yamaha OPL3-SA3 to tree.

update audio from NetBSD, mostly by Lennart Augustsson <augustss@cs.chalmers.se>

move to current OpenBSD isadma API

sync with NETBSD 30/3/97 + adapating aria.c

silence probe more

fix recording; from jabaker@grail.cba.csuohio.edu

sync with 0504 -- prototypes and bus.h

NetBSD 960317 merge

From NetBSD: merge of 960217

from netbsd; Convert IRQ, DRQ, and port numbers to int

branches: 1.1.1;
Initial revision

spelling
feedback and ok tb@ jmc@ ok ratchov@

Remove drain(), query_encoding(), mappage() and get_default_params()
methods from all audio drivers and from the audio_if structure as they
are never called.

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

Remove support for ADPCM encoding which isn't used nowadays and
not available to programs anyway.

Remove all audio format conversion code from the kernel (btw holding
the kernel_lock), as we already do better conversions in
user-mode. Yet, no need for every single driver to fiddle with the
conversion code as they are done transparently by common MI code. With
help from armani and miod, support from mpi

ok armani@

Fix the indentation. While originally I thought this was an if statement
with missing braces ratchov checked the specs to see the current
behaviour is correct, just poorly formatted.

ok ratchov@

remove uneeded proc.h includes
ok mpi@ kspillner@

Introduce a global interrupt-aware mutex protecting data
structures (including sound-card registers) from concurent
access by syscall and interrupt code-paths. Since critical
sections remain the same, calls to splraise/spllower can be
safely replaced by calls to mtx_enter/mtx_leave with two
exceptions: (1) mutexes are not reentrant (the inner splraise
is thus removed), and (2) we're not allowed to sleep with a
mutex (either msleep is used or the mutex is released before
sleeping).

ok and help from kettenis, a lot of work from armani

fix typo preventing compilation with AUDIO_DEBUG

missed a couple indents in previous

ANSI/style(9), no binary change

add two new members to structs audio_encoding and audio_prinfo.
for both structs, the new members are 'bps' and 'msb', which
describe the number of bytes per sample and data alignment in the
sample, respectively. drivers must properly set these fields in
the 'query_encoding', 'set_parameters' and 'get_default_params'
hardware interface methods.

discussed with ratchov, deraadt

* use audio(9)'s DMA trigger methods instead of the init/start
methods. the AD1848 DMA engine runs continuously and doesn't
need to be started/stopped or otherwise manipulated for each
block. makes the driver a bit more efficient.
* allow "Mode 2" capable chips such as the CS4231 to work in "Mode 1"
when there is only one DMA channel, instead of forcing it into
"Mode 2", which expects two DMA channels. allows recording to
work for "Mode 2" capable devices when there is only one DMA
channel.
* service both playback and recording interrupts in full-duplex
mode, instead of only playback interrupts. allows "Mode 2"
capable chips to work in full-duplex mode.
* fix checks for sample rate/format recalibration completion. gets
rid of busy loops that briefly "hang" the kernel when the device is
opened and/or reconfigured.

audio encoding conversion cleanup

- the endianness of the conversions don't depend on the endianness
of machine the conversions are built on, but the endianness of the
audio data itself. choose encoding conversions explicitly, instead
of relying on #defines based on the endianness of the machine.
- replace home-grown conversions with comparable conversions in
auconv.c and mulaw.c
- use the proper conversion for ulinear_be:16 -> slinear_le:16 in
auixp(4)

thanks ajacoutot@ and sthen@ for !x86 testing

remove "0x" in front of %p in printfs.

eyeballed by krw@

make sure aligment does not return zero block size

remove uvm_extern.h

tested on alpha, i386, powerpc, sparc64, m68k.

ok miod@

Do not hardcode the dma channel to 1, use the softc settings instead.
mickey@ ok

strcpy/sprintf cleanup of sys/dev. miod@, deraadt@ says to commit.

be consistant on Hz vs hz

spelling; from Brian Poole <raj@cerias.purdue.edu>

First round of __P removal in sys

make all audio drivers use the new allocm and round_buffersize decl's.
will ease porting, and generally cleans up a bit

branches: 1.23.2;
Replace inclusion of <vm/foo.h> with the correct <uvm/bar.h> when necessary.
(Look ma, I might have broken the tree)

Change the audio_hm_if->mappage interface to return paddr_t and take off_t
as the mmap offset.

Call isa_malloc with drq < 4, in case 8-bit DMA channels with more
restrictive boundaries are used

protect more reads and rights^Wwrites w/ spl; avoid inline which blows the code in twice

branches: 1.19.4;
A probe that fails on an otherwise working card, removed

further fixes for strange wss isapnp cards; apollo@slcnet.net

support another version of the chipset

remove unneeded pio.h inclusion

Die, NEWCONFIG

work around some ugly glitches

recognize CS4236B; netbsd

Fix the name of the ulinear_be mode; netbsd

Cleaned up AD1848 driver and added driver for Yamaha OPL3-SA3 to tree.

update audio from NetBSD, mostly by Lennart Augustsson <augustss@cs.chalmers.se>

move to current OpenBSD isadma API

sync with NETBSD 30/3/97 + adapating aria.c

silence probe more

fix recording; from jabaker@grail.cba.csuohio.edu

sync with 0504 -- prototypes and bus.h

NetBSD 960317 merge

From NetBSD: merge of 960217

from netbsd; Convert IRQ, DRQ, and port numbers to int

branches: 1.1.1;
Initial revision

Remove drain(), query_encoding(), mappage() and get_default_params()
methods from all audio drivers and from the audio_if structure as they
are never called.

Reimplement the audio driver in a simpler way, removing unused/unusable
functionality. Same API and ABI except for the removed bits and no
behaviour change for programs using libsndio. With help from armani@
and mpi@, thanks.

Remove support for ADPCM encoding which isn't used nowadays and
not available to programs anyway.

Remove all audio format conversion code from the kernel (btw holding
the kernel_lock), as we already do better conversions in
user-mode. Yet, no need for every single driver to fiddle with the
conversion code as they are done transparently by common MI code. With
help from armani and miod, support from mpi

ok armani@

Fix the indentation. While originally I thought this was an if statement
with missing braces ratchov checked the specs to see the current
behaviour is correct, just poorly formatted.

ok ratchov@

remove uneeded proc.h includes
ok mpi@ kspillner@

Introduce a global interrupt-aware mutex protecting data
structures (including sound-card registers) from concurent
access by syscall and interrupt code-paths. Since critical
sections remain the same, calls to splraise/spllower can be
safely replaced by calls to mtx_enter/mtx_leave with two
exceptions: (1) mutexes are not reentrant (the inner splraise
is thus removed), and (2) we're not allowed to sleep with a
mutex (either msleep is used or the mutex is released before
sleeping).

ok and help from kettenis, a lot of work from armani

fix typo preventing compilation with AUDIO_DEBUG

missed a couple indents in previous

ANSI/style(9), no binary change

add two new members to structs audio_encoding and audio_prinfo.
for both structs, the new members are 'bps' and 'msb', which
describe the number of bytes per sample and data alignment in the
sample, respectively. drivers must properly set these fields in
the 'query_encoding', 'set_parameters' and 'get_default_params'
hardware interface methods.

discussed with ratchov, deraadt

* use audio(9)'s DMA trigger methods instead of the init/start
methods. the AD1848 DMA engine runs continuously and doesn't
need to be started/stopped or otherwise manipulated for each
block. makes the driver a bit more efficient.
* allow "Mode 2" capable chips such as the CS4231 to work in "Mode 1"
when there is only one DMA channel, instead of forcing it into
"Mode 2", which expects two DMA channels. allows recording to
work for "Mode 2" capable devices when there is only one DMA
channel.
* service both playback and recording interrupts in full-duplex
mode, instead of only playback interrupts. allows "Mode 2"
capable chips to work in full-duplex mode.
* fix checks for sample rate/format recalibration completion. gets
rid of busy loops that briefly "hang" the kernel when the device is
opened and/or reconfigured.

audio encoding conversion cleanup

- the endianness of the conversions don't depend on the endianness
of machine the conversions are built on, but the endianness of the
audio data itself. choose encoding conversions explicitly, instead
of relying on #defines based on the endianness of the machine.
- replace home-grown conversions with comparable conversions in
auconv.c and mulaw.c
- use the proper conversion for ulinear_be:16 -> slinear_le:16 in
auixp(4)

thanks ajacoutot@ and sthen@ for !x86 testing

remove "0x" in front of %p in printfs.

eyeballed by krw@

make sure aligment does not return zero block size

remove uvm_extern.h

tested on alpha, i386, powerpc, sparc64, m68k.

ok miod@

Do not hardcode the dma channel to 1, use the softc settings instead.
mickey@ ok

strcpy/sprintf cleanup of sys/dev. miod@, deraadt@ says to commit.

be consistant on Hz vs hz

spelling; from Brian Poole <raj@cerias.purdue.edu>

First round of __P removal in sys

make all audio drivers use the new allocm and round_buffersize decl's.
will ease porting, and generally cleans up a bit

branches: 1.23.2;
Replace inclusion of <vm/foo.h> with the correct <uvm/bar.h> when necessary.
(Look ma, I might have broken the tree)

Change the audio_hm_if->mappage interface to return paddr_t and take off_t
as the mmap offset.

Call isa_malloc with drq < 4, in case 8-bit DMA channels with more
restrictive boundaries are used

protect more reads and rights^Wwrites w/ spl; avoid inline which blows the code in twice

branches: 1.19.4;
A probe that fails on an otherwise working card, removed

further fixes for strange wss isapnp cards; apollo@slcnet.net

support another version of the chipset

remove unneeded pio.h inclusion

Die, NEWCONFIG

work around some ugly glitches

recognize CS4236B; netbsd

Fix the name of the ulinear_be mode; netbsd

Cleaned up AD1848 driver and added driver for Yamaha OPL3-SA3 to tree.

update audio from NetBSD, mostly by Lennart Augustsson <augustss@cs.chalmers.se>

move to current OpenBSD isadma API

sync with NETBSD 30/3/97 + adapating aria.c

silence probe more

fix recording; from jabaker@grail.cba.csuohio.edu

sync with 0504 -- prototypes and bus.h

NetBSD 960317 merge

From NetBSD: merge of 960217

from netbsd; Convert IRQ, DRQ, and port numbers to int

branches: 1.1.1;
Initial revision