linux/include/sound, branch v2.6.38

ASoC: WM8903: Fix mic detection register definitions

2011-02-13T19:38:06Z

* There is no hysteresis enable field in the current datasheet. * Mic detection threshold field is only 2 bits wide. Signed-off-by: Stephen Warren Acked-by: Liam Girdwood Signed-off-by: Mark Brown

ALSA: constify functions in ac97

2011-01-14T18:14:47Z

Signed-off-by: Hanno Boeck Signed-off-by: Takashi Iwai

Merge branch 'topic/asoc' into for-linus

2011-01-13T07:37:24Z

ALSA: core, oxygen, virtuoso: add an enum control info helper

2011-01-10T15:46:53Z

Introduce the helper function snd_ctl_enum_info() to fill out the elem_info fields for an enumerated control. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ASoC: soc-dapm: Introduce the new snd_soc_dapm_virt_mux type

2010-12-17T17:36:28Z

This new type is a virtual version of snd_soc_dapm_mux. It is used when a backing register value is not necessary for deciding which input path to connect. A simple virtual enumeration control e.g. SOC_DAPM_ENUM_VIRT() can be exposed to userspace which will be used to choose which path to connect. The snd_soc_dapm_virt_mux type ensures that during the initial path setup, the first (which is also the default) input path will be connected. Signed-off-by: Dimitris Papastamos Acked-by: Liam Girdwood Signed-off-by: Mark Brown

ASoC: Do DAPM control updates in the middle of DAPM sequences

2010-12-17T11:18:04Z

Attempt to minimise audible effects from mixer and mux updates by implementing the actual register changes between powering down widgets that have become unused and powering up widgets that are newly used. This means that we're making the change with the minimum set of widgets powered, that the input path is connected when we're powering up widgets (so things like DC offset correction can run with their signal active) and that we bring things down to cold before switching away. Since hardware tends to be designed for the power on/off case more than for dynamic reconfiguration this should minimise pops and clicks during reconfiguration while active. Signed-off-by: Mark Brown Acked-by: Peter Ujfalusi Tested-by: Peter Ujfalusi Acked-by: Liam Girdwood

ASoC: Extend DAPM to handle power changes on cross-device paths

2010-12-15T18:01:34Z

Power change event like stream start/stop or kcontrol change in a cross-device path originates from one device but codec bias and widget power changes must be populated to another devices on that path as well. This patch modifies the dapm_power_widgets so that all the widgets on a sound card are checked for a power change, not just those that are specific to originating device. Also bias management is extended to check all the devices. Only exception in bias management are widgetless codecs whose bias state is changed only if power change is originating from that context. DAPM context test is added to dapm_seq_run to take care of if power sequence extends to an another device which requires separate register writes. Signed-off-by: Jarkko Nikula Acked-by: Liam Girdwood Signed-off-by: Mark Brown

ASoC: Move widgets from DAPM context to snd_soc_card

2010-12-15T18:01:01Z

Decoupling widgets from DAPM context is required when extending the ASoC core to cross-device paths. Even the list of widgets are now kept in struct snd_soc_card, the widget listing in sysfs and debugs remain sorted per device. This patch makes possible to build cross-device paths but does not extend yet the DAPM to handle codec bias and widget power changes of an another device. Cross-device paths are registered by listing the widgets from device A in a map for device B. In case of conflicting widget names between the devices, a uniform name prefix is needed to separate them. See commit ead9b91 "ASoC: Add optional name_prefix for kcontrol, widget and route names" for help. An example below shows a path that connects MONO out of A into Line In of B: static const struct snd_soc_dapm_route mapA[] = { {"MONO", NULL, "DAC"}, }; static const struct snd_soc_dapm_route mapB[] = { {"Line In", NULL, "MONO"}, }; Signed-off-by: Jarkko Nikula Acked-by: Liam Girdwood Signed-off-by: Mark Brown

ASoC: Move DAPM paths from DAPM context to snd_soc_card

2010-12-15T18:00:41Z

Decoupling DAPM paths from DAPM context is a first prerequisite when extending ASoC core to cross-device paths. This patch is almost a nullop and does not allow to construct cross-device setup but the path clean-up part in dapm_free_widgets is prepared to remove cross-device paths between a device being removed and others. Signed-off-by: Jarkko Nikula Acked-by: Liam Girdwood Signed-off-by: Mark Brown

ASoC: Remove unused DAPM_DOUBLE control types

2010-12-15T14:18:07Z

There are no users of these and it's not clear what they would do given the mono flow modelling which DAPM does. If need arises we can add them again. Signed-off-by: Mark Brown Acked-by: Liam Girdwood