19 Dec, 2011

1 commit

  • module_param(bool) used to counter-intuitively take an int. In
    fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
    trick.

    It's time to remove the int/unsigned int option. For this version
    it'll simply give a warning, but it'll break next kernel version.

    Signed-off-by: Rusty Russell
    Signed-off-by: Takashi Iwai

    Rusty Russell
     

02 Dec, 2011

2 commits

  • Signed-off-by: David Dillow
    Signed-off-by: Takashi Iwai

    David Dillow
     
  • There are some AC97 codec and board combinations that have been observed
    to take a very long time to respond after the cold reset has completed.
    In one case, more than 350 ms was required. To allow users to have sound
    on those platforms, we'll wait up to 500ms for the codec to become
    ready.

    As a board may have multiple codecs, with some faster than others to
    reset, we add a module parameter to inform the driver which codecs
    should be present.

    Reported-by: KotCzarny
    Signed-off-by: David Dillow
    Cc:
    Signed-off-by: Takashi Iwai

    David Dillow
     

01 Nov, 2011

1 commit


22 Sep, 2011

1 commit

  • Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
    We run all interrupt handlers with interrupts disabled
    and we even check and yell when an interrupt handler
    returns with interrupts enabled (see commit [b738a50a:
    genirq: Warn when handler enables interrupts]).

    So now this flag is a NOOP and can be removed.

    Signed-off-by: Yong Zhang
    Acked-by: Peter Ujfalusi
    Acked-by: Mark Brown
    Signed-off-by: Takashi Iwai

    Yong Zhang
     

10 Jun, 2011

2 commits

  • The name argument of request_irq() appears in /proc/interrupts, and
    it's quite ugly when the name entry contains a space or special letters.
    In general, it's simpler and more readable when the module name appears
    there, so let's replace all entries with KBUILD_MODNAME.

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     
  • The convention for pci_driver.name entry in kernel drivers seem to be
    the module name or equivalent ones. But, so far, almost all PCI sound
    drivers use more verbose name like "ABC Xyz (12)", and these are fairly
    confusing when appearing as a file name.

    This patch converts the all pci_driver.name entries in sound/pci/* to
    use KBUILD_MODNAME for more unified appearance.

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     

31 Mar, 2011

1 commit


28 Jun, 2010

2 commits

  • A few boards using this controller are reported to need a little extra
    time during their reset cycle.

    Reported-by: Michael Goeke
    Signed-off-by: Dave Dillow
    Signed-off-by: Jaroslav Kysela

    David Dillow
     
  • When using a timing voice to clock out periods during capture, the
    driver would slowly loose synchronization and never catch up, eventually
    reaching a point where it no longer generated interrupts. To avoid
    this situation, the virtual period clocking was changed to shorten the
    next timing period when our timing voice falls too far behind the
    capture voice. In addition, the first virtual period for the timing
    voice was slightly too short, causing the timing voice to initially be
    ahead of the capture voice.

    While tracking down this problem, I noticed that the expected sample
    offset was being incorrectly initialized, causing an overrun to be
    incorrectly reported when the timing voice happened to be perfectly
    synchronized.

    Reported-by: Hans Schou
    Signed-off-by: Dave Dillow
    Signed-off-by: Jaroslav Kysela

    David Dillow
     

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
     

09 Feb, 2010

1 commit


07 Apr, 2009

1 commit


12 Jan, 2009

1 commit


24 Apr, 2008

1 commit

  • free_irq() calls synchronize_irq() for you, so there is no need for
    drivers to manually do the same thing (again). Thus, calls where
    sync-irq immediately precedes free-irq can be simplified.

    However, during this audit several bugs were noticed, where free-irq is
    preceded by a "irq >= 0" check... but the sync-irq call is not covered
    by the same check.

    So, where sync-irq could not be eliminated completely, the missing check
    was added.

    Signed-off-by: Jeff Garzik
    Signed-off-by: Takashi Iwai

    Jeff Garzik
     

22 Apr, 2008

1 commit


01 Feb, 2008

2 commits

  • This header file exists only for some hacks to adapt alsa-driver
    tree. It's useless for building in the kernel. Let's move a few
    lines in it to sound/core.h and remove it.
    With this patch, sound/driver.h isn't removed but has just a single
    compile warning to include it. This should be really killed in
    future.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     
  • Basic audio support for the SiS 7019 Audio Accelerator as found in the
    SiS 55x SoC. There is currently no synth support at the moment, but
    audio playback and capture with two periods per buffer has seen
    extensive use. Arbitrary period and buffer sizes (with multiple periods
    per buffer) have seen light testing, but are believed to be production
    ready.

    Signed-off-by: David Dillow
    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    David Dillow