13 Jul, 2010

1 commit


04 Jun, 2010

1 commit

  • Use the resource_size function instead of manually calculating the
    resource size.This patch can reduce the chance of introducing off-by-one
    errors.

    Signed-off-by: Wan ZongShun
    Acked-by: Manuel Lauss
    Acked-by: Liam Girdwood
    Signed-off-by: Mark Brown

    Wan ZongShun
     

30 Mar, 2010

1 commit

  • …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

27 Feb, 2010

3 commits

  • Machine driver for DB1200 AC97 and I2S audio systems, intended as a proper
    reference asoc machine for Alchemy-based systems. AC97/I2S can be selected
    at boot time by setting switch S6.7.

    Signed-off-by: Manuel Lauss
    Cc: Linux-MIPS
    Cc: alsa-devel@alsa-project.org
    Cc: Mark Brown
    Acked-by: Mark Brown
    Signed-off-by: Ralf Baechle

    Manuel Lauss
     
  • DMA can only be done from physical addresses; move the "virt_to_phys"
    source/destination buffer address translation from the dbdma queueing
    functions (since the hardware can only DMA to/from physical addresses)
    to their respective users.

    Signed-off-by: Manuel Lauss
    Signed-off-by: Ralf Baechle

    Manuel Lauss
     
  • Remove dbdma compat macros, move remaining users over to default
    queueing functions and -flags.

    (Queueing function signature has changed in order to give
    a build failure instead of silent functional changes due
    to the no longer implicitly specified DDMA_FLAGS_IE flag)

    Signed-off-by: Manuel Lauss
    Signed-off-by: Ralf Baechle

    Manuel Lauss
     

03 Dec, 2009

2 commits


02 Nov, 2009

1 commit


19 Oct, 2009

2 commits


09 Sep, 2009

1 commit

  • This patch fixes the following bugs:

    - only reprogram bitdepth if it has changed since last call to hw_params.
    - add locking inside ac97_read/write functions:
    When reprogramming sample depth, the ac97 unit has to be disabled,
    which should not be done in the middle of codec register accesses.

    - retry timed-out codec register accesses.

    - wait for status bits to set/clear when starting/stopping various
    functional blocks; very important after reenabling AC97 unit else
    sound may be distorted (e.g. high-pitch noise in 1kHz sine wave).

    - clear fifos before/after starting/stopping RX/TX.

    - longer timeouts waiting for PSC/AC97 ready after cold reset
    with certain codecs this can take ridiculous amounts of time.

    Run-tested on various Au1200 platforms with various codecs.

    Signed-off-by: Manuel Lauss
    Signed-off-by: Mark Brown

    Manuel Lauss
     

28 Apr, 2009

1 commit


05 Mar, 2009

1 commit

  • Considering the fact that most cpu_dai or codec_dai are using a same
    'snd_soc_dai_ops' for several similar interfaces, 'ops' would be better
    made a pointer instead, to make sharing easier and code a bit cleaner.

    The patch below is rather preliminary since the asoc tree is being
    actively developed, and this touches almost every piece of code,
    (and possibly many others in development need to be changed as
    well). Building of all codecs are OK, yet to every SoC, I didn't test
    that.

    Signed-off-by: Eric Miao
    Acked-by: Timur Tabi
    Signed-off-by: Mark Brown

    Eric Miao
     

20 Jan, 2009

1 commit


09 Jan, 2009

1 commit

  • Cc: Ingo Molnar
    Cc: Thomas Gleixner
    Acked-by: Theodore Ts'o
    Acked-by: Mark Fasheh
    Acked-by: David S. Miller
    Cc: James Morris
    Acked-by: Casey Schaufler
    Acked-by: Takashi Iwai
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Fernando Carrijo
     

09 Dec, 2008

2 commits

  • This is done at modprobe time, mirroring current behaviour, except for
    mpc5200_psc_i2s where we do registration at the same time as we register
    with soc-of-simple. Since the core currently ignores registration this
    has no practical impact.

    Signed-off-by: Mark Brown

    Mark Brown
     
  • Register all platform DAIs with the core. In line with current behaviour
    this is done at module probe time rather than when the devices are probed
    (since currently that only happens as the entire ASoC card is registered
    except for those drivers that currently implement some kind of hotplug).
    Since the core currently ignores DAI registration this has no practical
    effect.

    Signed-off-by: Mark Brown

    Mark Brown
     

04 Dec, 2008

1 commit


25 Nov, 2008

1 commit

  • DAI type information is only ever used within ASoC in order to special
    case AC97 and for diagnostic purposes. Since modern CPUs and codecs
    support multi function DAIs which can be configured for several modes
    it is more trouble than it's worth to maintain anything other than a
    flag identifying AC97 DAIs so remove the type field and replace it with
    an ac97_control flag.

    Signed-off-by: Mark Brown

    Mark Brown
     

21 Nov, 2008

2 commits

  • Liam Girdwood's ASoC v2 work avoids having two different ops structures
    for DAIs by merging the members of struct snd_soc_ops into struct
    snd_soc_dai_ops, allowing per DAI configuration for everything.
    Backport this change.

    This paves the way for future work allowing any combination of DAIs to
    be connected rather than having fixed purpose CODEC and CPU DAIs and
    only allowing CODECCPU interconnections.

    Signed-off-by: Mark Brown

    Mark Brown
     
  • One of the issues with the ASoC v1 API which has been addressed in the
    ASoC v2 work that Liam Girdwood has done is that the ALSA card provided
    by ASoC is distributed around the ASoC structures. For example, machine
    wide data such as the struct snd_card are maintained as part of the
    CODEC data structure, preventing the use of multiple codecs. This has
    been addressed by refactoring the data structures so that all the data
    for the ALSA card is contained in a single structure snd_soc_card which
    replaces the existing snd_soc_machine and snd_soc_device.

    Begin the process of backporting this by renaming struct snd_soc_machine
    to struct snd_soc_card, better reflecting its function and bringing it
    closer to standard ALSA terminology.

    Signed-off-by: Mark Brown

    Mark Brown
     

15 Jul, 2008

1 commit


10 Jul, 2008

1 commit

  • Audio for Au12x0/Au1550 PSCs in AC97 and I2S mode, for ASoC v1 framework.

    - DBDMA, AC97 and I2S drivers
    - sample AC97 machine code (Db1200)

    Signed-off-by: Manuel Lauss
    Signed-off-by: Liam Girdwood
    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Manuel Lauss