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path: root/include/sound/soc-dapm.h
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2009-08-24Merge branch 'topic/digital-mixing' into for-2.6.32Mark Brown
2009-08-21ASoC: Add DAPM widget power decision debugfs filesMark Brown
Currently when built with DEBUG DAPM will dump information about the power state decisions it is taking for each widget to dmesg. This isn't an ideal way of getting the information - it requires a kernel build to turn it on and off and for large hub CODECs the volume of information is so large as to be illegible. When the output goes to the console it can also cause a noticable impact on performance simply to print it out. Improve the situation by adding a dapm directory to our debugfs tree containing a file per widget with the same information in it. This still requires a decision to build with debugfs support but is easier to navigate and much less intrusive. In addition to the previously displayed information active streams are also shown in these files. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-18ASoC: Add input and output AIF widgetsMark Brown
Currently DAPM interfaces with the audio streams to and from the processor at the DAC and ADC widgets. As the digital capabilities of parts increases this is becoming a less and less able to meet the needs of parts. To meet the needs of these devices create new widgets interfacing with the TDM bus but not integrated into any other functionality. Audio can then be routed to and from these widgets using existing routing widgets. A slot number is provided in the definition but this is currently not used yet. This is intended to support devices which can use more than one TDM slot on a single interface. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-06-23ASoC: Add a shutdown callbackMark Brown
Ensure that the audio subsystem is powered down cleanly when the system shuts down by providing a shutdown operation. This ensures that all the components have been returned to an off state cleanly which should avoid audio issues from partially charged capacitors or noise on digital inputs if the system is restarted quickly. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Tested-by: Ben Dooks <ben-linux@fluff.org>
2009-05-18ASoC: Integrate bias management with DAPM power managementMark Brown
Rather than managing the bias level of the system based on if there is an active audio stream manage it based on there being an active DAPM widget. This simplifies the code a little, moving the power handling into one place, and improves audio performance for bypass paths when no playbacks or captures are active. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-05-18ASoC: Split DAPM power checks from sequencing of power changesMark Brown
DAPM has always applied any changes to the power state of widgets as soon as it has determined that they are required. Instead of doing this store all the changes that are required on lists of widgets to power up and down, then iterate over those lists and apply the changes. This changes the sequence in which changes are implemented, doing all power downs before power ups and always using the up/down sequences (previously they were only used when changes were due to DAC/ADC power events). The error handling is also changed so that we continue attempting to power widgets if some changes fail. The main benefit of this is to allow future changes to do optimisations over the whole power sequence and to reduce the number of walks of the widget graph required to check the power status of widgets. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-04-22ASoC: Add power supply widget to DAPMMark Brown
Many modern CODECs have shared resources on chip which must be enabled for portions of the chip to work but which can be disabled at other times in order to achieve power savings. Examples of such resources include power supplies and some internal clocks. Since these widgets are dependencies for the audio path but do not carry audio signals they require slightly different handling to most widgets - they do not contribute to the audio path and so should not be counted as either inputs or outputs during path walks. Cases where one supply provides a supply for another will require additional work. There is also room for more optimisation of the graph walking to avoid repeated checks for the same thing. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-04-20ASoC: Make the DAPM power check an operation on the widgetMark Brown
Rather than having switch statements at point of use make the DAPM power check a member of the widget structure and set it when we instantiate the widget. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-04-13ASoC: Support DAPM events for DACs and ADCsMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-02-28ASoC: Add SND_SOC_DAPM_PIN_SWITCH controls for exposing DAPM pinsMark Brown
On some systems it is desirable for control for DAPM pins to be provided to user space. This is the case with things like GSM modems which are controlled primarily from user space, for example. Provide a helper which exposes the state of a DAPM pin to user space for use in cases like this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-01-23Merge branch 'for-2.6.29' into for-2.6.30Mark Brown
2009-01-23ASoC: Add missing comma to SND_SOC_DAPM_SWITCH_E in soc-dapm.hPeter Ujfalusi
Typo fix. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-01-09Merge branch 'for-2.6.29' into for-2.6.30Mark Brown
2009-01-09ASoC: Constify pin names for DAPM pin status APIsMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-01-08ASoC: Merge the soc_value_enum to soc_enum structPeter Ujfalusi
Merge the recently introduced soc_value_enum structure to the soc_enum. The value based enums are still handled separately from the normal enum types, but with the merge some of the newly introduced functions can be removed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-01-07ASoC: dapm: Allow explictly named mixer controlsIan Molton
This patch allows you to define the mixer paths as having the same name as the paths they represent. This is required to support codecs such as the wm9705 neatly without extra controls in the alsa mixer. Signed-off-by: Ian Molton <ian@mnementh.co.uk>
2009-01-05ASoC: New enum type: value_enumPeter Ujfalusi
This patch introduces a new enum type. In this enum type each enumerated items referred with a value. This new enum type can handle enums encoded in bitfield, or any other weird ways. twl4030 codec has several mux selection register, where the input/output mux is coded in a bitfield. With the normal enum type this type of mux can not be handled in a clean way. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2008-10-16ALSA: ASoC: Remove snd_soc_dapm_connect_input()Mark Brown
This was marked as deprecated in 2.6.27 and all users except for playpaq_wm8510 fixed in that release. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-10-13ALSA: ASoC: Allow machine drivers to mark pins as not connectedMark Brown
Add a new API call snd_soc_dapm_nc_pin() which allows machine drivers to mark pins as being permanently disabled. At present this is identical to snd_soc_dapm_disable_pin() except in terms of improving the internal documentation of machine drivers that use it. The intention is that in future it will be extended to provide additional features such as hiding controls that are only relevant to paths using the disconnected pin. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-29ALSA: ASoC: Export dapm_reg_event() fullyMark Brown
dapm_reg_event() is used by devices using SND_SOC_DAPM_REG() so needs to be exported to support building them as modules and prototyped to avoid sparse warnings and potential build issues. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-10ALSA: asoc: core - refactored DAPM pin control API.Liam Girdwood
Refactored snd_soc_dapm_set_endpoint() to snd_soc_dapm_enable_pin() and snd_soc_dapm_disable_pin(). Renamed snd_soc_dapm_sync_endpoints() to snd_soc_dapm_sync(). Renamed snd_soc_dapm_get_endpoint_status() to snd_soc_dapm_get_pin_status(). Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26ALSA: ASoC: Add support for generic DAPM register modifier widgetJarkko Nikula
This generic register modifier widget is for updating multiple codec register bits at once when the widget changes its power state. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] ASoC: Clarify API for bias configurationMark Brown
Currently the ASoC core configures the bias levels in the system using a callback on codecs and machines called 'dapm_event', passing it PCI style power levels as SNDRV_CTL_POWER_ constants. This is more obscure than it needs to be and has caused confusion to driver authors, especially given that DAPM is also performing power management. Address this by renaming the callback function to 'set_bias_level' and using constants explicitly representing the off, standby, pre-on and on states which DAPM transitions through. Also unexport the API for setting bias level: there are currently no in-tree users of this API other than the core itself and it is likely that the core would need to be extended to cater for any users. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - DAPM - Bulk route registrationMark Brown
ASoC codecs and machine drivers that use DAPM routes all cut'n'paste a loop iterating over a null terminated array of routes. Factor out this into a bulk registration function, improving the error reporting for most users, and deprecate the old API to help out of tree users pick up the changes. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Graeme Gregory <graeme@openmoko.org> Cc: Frank Mandarino <fmandarino@endrelia.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - DAPM - Add bulk control registrationMark Brown
Most SoC drivers cut'n'paste a loop iterating over an array to register their DAPM controls. Provide a function they can call instead. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Graeme Gregory <graeme@openmoko.org> Cc: Frank Mandarino <fmandarino@endrelia.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-05-19[ALSA] soc - DAPM - add hook to read state of DAPM widgetGraeme Gregory
This adds a hook to read the power state of a DAPM widget, I use this in the gta02 driver to expose certain DAPM widgets in the mixer for ease of audio routing. Signed-off-by: Graeme Gregory <graeme@openmoko.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] soc - Add support for passing kcontrols with eventsLaim Girdwood
Signed-off-by: Laim Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] ASoC TLV supportPhilipp Zabel
Add TLV support to ASoC. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] soc - Add device level DAPM eventLiam Girdwood
Added a device level dapm event so that both the machine and codec are informed when dapm events occur. Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] include/sound/: Spelling fixesJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-02-09[ALSA] ASoC: core and dapm headersRichard Purdie
This patch adds the ASoC and DAPM headers. Features:- o Defines Digital Audio Interface (DAI) API o Defines Codec, Platform and Machine API o Defines Dynamic Audio Power Management API Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>