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  1. 17 4月, 2012 6 次提交
    • F
      ASoC: soc-dapm: Use '%llx' with 'u64' type. · 516541a0
      由 Fabio Estevam 提交于 
      Fix the following build warning:

sound/soc/soc-dapm.c: In function 'snd_soc_dai_link_event':
sound/soc/soc-dapm.c:2913: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'u64'

'%llx' should be used with 'u64' type.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      516541a0
    • M
      ASoC: core: Support transparent CODEC<->CODEC DAI links · c74184ed
      由 Mark Brown 提交于 
      Rather than having the user half start a stream but avoid any DMA to
trigger data flow on links which don't pass through the CPU create a
DAPM route between the two DAI widgets using a hw_params configuration
provided by the machine driver with the new 'params' member of the
dai_link struct.  If no configuration is provided in the dai_link then
use the old style even for CODEC<->CODEC links to avoid breaking
systems.

This greatly simplifies the userspace usage of such links, making them
as simple as analogue connections with the stream configuration being
completely transparent to them.

This is achieved by defining a new dai_link widget type which is created
when CODECs are linked and triggering the configuration of the link via
the normal PCM operations from there.  It is expected that the bias
level callbacks will be used for clock configuration.

Currently only the DAI format, rate and channel count can be configured
and currently the only DAI operations which can be called are hw_params
and digital_mute().  This corresponds well to the majority of CODEC
drivers which only use other callbacks for constraint setting but there
is obviously much room for extension here.  We can't simply call
hw_params() on startup as things like the system clocking configuration
may change at runtime and in future it will be desirable to offer some
configurability of the link parameters.

At present we are also restricted to a single DAPM link for the entire
DAI.  Once we have better support for channel mapping it would also be
desirable to extend this feature so that we can propagate per-channel
power state over the link.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
      c74184ed
    • M
      ASoC: core: Bind DAIs to CODECs at registration time · 054880fe
      由 Mark Brown 提交于 
      We should always have a CODEC already there when registering a CODEC DAI
and for CODEC<->CODEC links a dai_link will have two CODECs so it's much
simpler to do things at registration time.

This results in a slight change in the error handling for failed CODEC
DAI registrations but practically speaking these are never supposed to
fail so there shouldn't be much issue. The change is that we don't fail
the overall CODEC registration if the DAI registration fails; this seems
more robust anyway as we may not need to use a given DAI in a particular
system.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      054880fe
    • M
      ASoC: core: Flip master for CODECs in the CPU slot of a CODEC<->CODEC link · f04209a7
      由 Mark Brown 提交于 
      When two CODEC DAIs are linked directly to each other then if we give the
same master mode settings to both devices things won't work as either
neither will drive or they'll drive against each other. Flip the settings
for the DAI in the CPU slot of the DAI link.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
      f04209a7
    • M
      ASoC: dapm: Allow DAI widgets to be routed through · 1eee1b38
      由 Mark Brown 提交于 
      In order to allow CODEC<->CODEC links to function we will need to allow
DAPM paths to be created that pass through DAIs rather than only ones
that are source or sunk at the DAI.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
      1eee1b38
    • M
      ASoC: core: Return -ENOTSUPP instead of -EINVAL if mute is not supported · 04570c62
      由 Mark Brown 提交于 
      This helps us ignore errors in callers if the operation failed due to not
being available as opposed to an error.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
      04570c62
  3. 15 4月, 2012 1 次提交
  5. 14 4月, 2012 4 次提交
  7. 13 4月, 2012 20 次提交
  9. 11 4月, 2012 4 次提交
  11. 10 4月, 2012 4 次提交
  13. 09 4月, 2012 1 次提交