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  1. 01 4月, 2012 2 次提交
    • L
      ASoC: dapm: Use DAPM mutex for DAPM ops instead of codec mutex · a73fb2df
      由 Liam Girdwood 提交于 
      It has now become necessary to use a DAPM mutex instead of the codec
mutex to lock the DAPM operations. This is due to the recent multi
component support and forth coming Dynamic PCM updates.

Currently we lock DAPM operations with the codec mutex of the calling
RTD context. However, DAPM operations can span the whole card context
and all components.

This patch updates the DAPM operations that use the codec mutex to
now use the DAPM mutex PCM subclass for all DAPM ops.

We also add a mutex subclass for DAPM init and PCM operations.
Signed-off-by: NLiam Girdwood <lrg@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      a73fb2df
    • L
      ASoC: core: Add card mutex locking subclasses · 01b9d99a
      由 Liam Girdwood 提交于 
      This is the first part of a change that is intended to improve
ASoC locking protection for DAPM and PCM operations.

This part of the series adds a mutex class for the soc_card mutex. The
SND_SOC_CARD_CLASS_INIT class is used for card initialisation only whilst the
SND_SOC_CARD_CLASS_PCM class is used for the forth coming Dynamic
PCM operations. The new mutex classes are required otherwise we will see a false
positive mutex deadlock warning between the card initialisation and the PCM
operations (something that would never deadlock in real life).
Signed-off-by: NLiam Girdwood <lrg@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      01b9d99a
  3. 07 3月, 2012 1 次提交
  5. 22 2月, 2012 2 次提交
    • M
      ASoC: core: Add support for masking out parts of coefficient blocks · f831b055
      由 Mark Brown 提交于 
      Chip designers frequently include things like the enable and disable
controls for algorithms in the register blocks which also hold the
coefficients. Since it's desirable to split out the enable/disable
control from userspace the plain SND_SOC_BYTES() isn't optimal for
these devices.

Add a SND_SOC_BYTES_MASK() which allows a bitmask from the first word
of the block to be excluded from the control. This supports the needs
of devices I've looked at and lets us have a reasonably simple API.
Further controls can be added in future if that's needed.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
      f831b055
    • M
      ASoC: core: Add SND_SOC_BYTES control for coefficient blocks · 71d08516
      由 Mark Brown 提交于 
      Allow devices to export blocks of registers to the application layer,
intended for use for reading and writing coefficient data which can't
usefully be worked with by the kernel at runtime (for example, due to
requiring complex and expensive calculations or being the results of
callibration procedures). Currently drivers are using platform data to
provide configurations for coefficient blocks which isn't at all
convenient for runtime management or configuration development.

Currently only devices using regmap are supported, an error will be
generated for any attempt to work with a byte control on a non-regmap
device. There's no fundamental block to other devices so support could
be added if required.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
      71d08516
  7. 18 2月, 2012 1 次提交
  9. 16 2月, 2012 1 次提交
  11. 09 2月, 2012 1 次提交
  13. 04 2月, 2012 1 次提交
    • L
      ASoC: core: Add support for DAI and machine kcontrols. · 022658be
      由 Liam Girdwood 提交于 
      Currently ASoC can only add kcontrols using codec and platform component device
handles. It's also desirable to add kcontrols for DAIs (i.e. McBSP) and for
SoC card machine drivers too. This allows the kcontrol to have a direct handle to
the parent ASoC component DAI/SoC Card/Platform/Codec device and hence easily
get it's private data.

This change makes snd_soc_add_controls() static and wraps it in the folowing
calls (card and dai are new) :-

snd_soc_add_card_controls()
snd_soc_add_codec_controls()
snd_soc_add_dai_controls()
snd_soc_add_platform_controls()

This patch also does a lot of small mechanical changes in individual codec drivers
to replace snd_soc_add_controls() with snd_soc_add_codec_controls().

It also updates the McBSP DAI driver to use snd_soc_add_dai_controls().

Finally, it updates the existing machine drivers that register controls to either :-

1) Use snd_soc_add_card_controls() where no direct codec control is required.
2) Use snd_soc_add_codec_controls() where there is direct codec control.

In the case of 1) above we also update the machine drivers to get the correct
component data pointers from the kcontrol (rather than getting the machine pointer
via the codec pointer).
Signed-off-by: NLiam Girdwood <lrg@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      022658be
  15. 22 1月, 2012 1 次提交
  17. 20 1月, 2012 1 次提交
    • M
      ASoC: Allow drivers to specify how many bits are significant on a DAI · 58ba9b25
      由 Mark Brown 提交于 
      Most devices accept data in formats that don't correspond directly to
their internal format. ALSA allows us to set a msbits constraint which
tells userspace about this in case it finds it useful (for example, in
order to avoid wasting effort dithering bits that will be ignored when
raising the sample size of data) so provide a mechanism for drivers to
specify the number of bits that are actually significant on a DAI and
add the appropriate constraints along with all the others.

This is done slightly awkwardly as the constraint is specified per sample
size - we loop over every possible sample size, including ones that the
device doesn't support and including ones that have fewer bits than are
actually used, but this is harmless as the upper layers do the right thing
in these cases.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
      58ba9b25
  19. 11 1月, 2012 1 次提交
  21. 23 12月, 2011 1 次提交
  23. 22 12月, 2011 1 次提交
  25. 20 12月, 2011 2 次提交
  27. 13 12月, 2011 1 次提交
  29. 02 12月, 2011 1 次提交
  31. 24 11月, 2011 1 次提交
    • S
      ASoC: Implement fully_routed card property · 1633281b
      由 Stephen Warren 提交于 
      A card is fully routed if the DAPM route table describes all connections on
the board.

When a card is fully routed, some operations can be automated by the ASoC
core. The first, and currently only, such operation is described below, and
implemented by this patch.

Codecs often have a large number of external pins, and not all of these pins
will be connected on all board designs. Some machine drivers therefore call
snd_soc_dapm_nc_pin() for all the unused pins, in order to tell the ASoC core
never to activate them.

However, when a card is fully routed, the information needed to derive the
set of unused pins is present in card->dapm_routes. In this case, have
the ASoC core automatically call snd_soc_dapm_nc_pin() for each unused
codec pin.

This has been tested with soc/tegra/tegra_wm8903.c and soc/tegra/trimslice.c.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      1633281b
  33. 10 11月, 2011 2 次提交
  35. 27 10月, 2011 1 次提交
  37. 15 10月, 2011 1 次提交
  39. 07 10月, 2011 1 次提交
  41. 06 10月, 2011 5 次提交
  43. 04 10月, 2011 3 次提交
  45. 28 9月, 2011 1 次提交
    • M
      ASoC: Allow DAI formats to be specified in the dai_link · 75d9ac46
      由 Mark Brown 提交于 
      For almost all machines the DAI format is a constant, always set to the
same thing. This means that not only should we normally set it on init
rather than in hw_params() (where it has been for historical reasons) we
should also allow users to configure this by setting a variable in the
dai_link structure. The combination of these two will make many machine
drivers even more data driven.

Implement a new dai_fmt field in the dai_link doing just that. Since 0 is
a valid value for many format flags and we need to be able to tell if the
field is actually set also add one to all the values used to configure
formats.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      75d9ac46
  47. 21 9月, 2011 2 次提交
    • D
      ASoC: soc-core: symmetry checking for each DAIs separately · 17841020
      由 Dong Aisheng 提交于 
      The orginal code does not cover the case that one DAI such as codec
may be shared between other two DAIs(CPU).
When do symmetry checking, altough the codec DAI requires symmetry,
the two CPU DAIs may still be configured to run on different rates.

We change to check each DAI's state separately instead of only checking
the dai link to prevent this issue.
Signed-off-by: NDong Aisheng <b29396@freescale.com>
Tested-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NLiam Girdwood <lrg@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      17841020
    • M
      ASoC: Trace and collect statistics for DAPM graph walking · de02d078
      由 Mark Brown 提交于 
      One of the longest standing areas for improvement in ASoC has been the
DAPM algorithm - it repeats the same checks many times whenever it is run
and makes no effort to limit the areas of the graph it checks meaning we
do an awful lot of walks over the full graph. This has never mattered too
much as the size of the graph has generally been small in relation to the
size of the devices supported and the speed of CPUs but it is annoying.

In preparation for work on improving this insert a trace point after the
graph walk has been done. This gives us specific timing information for
the walk, and in order to give quantifiable (non-benchmark) numbers also
count every time we check a link or check the power for a widget and report
those numbers. Substantial changes in the algorithm may require tweaks to
the stats but they should be useful for simpler things.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      de02d078
  49. 31 8月, 2011 2 次提交
  51. 23 8月, 2011 1 次提交
  53. 08 8月, 2011 2 次提交