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2019-04-08Introduce 'unconfigure' callbackMark Farrugia1-0/+3
The 'unconfigure' callback can be used to clean up the 'configured' state of an Audio Path, for when it is desired to reset the streams, and/or reload a different stream configuration. To destroy the streams, we must attempt to force their PCMs closed. Take note though, that if a PCM is being written to when an unconfigure command is issued, system instability may occur. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-04-01Add 'internal' streams for routing, revamp stream finalisationMark Farrugia1-0/+2
Uses the ALSA internal PCM API to create streams purely used for internal routing purposes. Adds the 'try_complete' functions for both streams and routes in an attempt to standardize the finalization of a stream or route object. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-03-27Rework routing systemMark Farrugia1-19/+77
- Add 'route' to snd_avirt_stream, remove from audio path - Add route checking - ensure that source ap and ink ap have compatible hw params - Add private data support for both source and sink Audio Paths, to ensure that the PCM can hold multiple private data(s). - Add ability to use copy_kernel and exttriggers from AVIRT instead of from Audio Paths - Reintroduce pcm_trigger and pcm_prepare, so that they may be called appropriately from AVIRT, rather than child Audio Paths. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-03-27Remove snd_avirt_pcm_period_elapsed, format tidyMark Farrugia1-9/+0
We do not need this wrapper function any longer, can use snd_pcm_period_elapsed instead. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-03-01Add ability to route audio between audio pathsMark Farrugia1-1/+20
Configfs interface for adding 'routes' is added, and allows two audio paths to chain together particular inputs/outputs, allowing for multistage audio driver handling. A particular use-case is that of an ADSP driver. We can feed in audio to it, and capture the processed, and/or mixed, audio at it's output, and direct to another audio path driver, such as the UNICENS audio driver. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-03-01Refactor avirt_private_freeMark Farrugia1-9/+14
Explicitly define callback type, refactor name Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-03-01Update some helper scriptsMark Farrugia1-1/+1
Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-01-29Rework setting the AVIRT map, and stream creationMark Farrugia1-0/+1
To ensure that a stream is able to change it's mapping (before card is sealed), we cannot create the stream PCM upon setting the mapping. This had to be reworked to allow multiple setting of the mapping if so required. The PCM ops table for a given stream is now allocated and stored in the snd_avirt_stream struct, to allow retrieval and manipulation upon mapping change. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2019-01-29Make snd_avirt_stream_get an exported functionMark Farrugia1-0/+7
Clean up logging Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2018-11-13Rework PCM ops callback mechanismMark Farrugia1-1/+2
- Fix issues regarding PCM ops callbacks via AVIRT - As PCMs are created, the PCM ops are set according to the Audio Path's needs. A default PCM ops table is applied for all PCMs, which includes callbacks such as open, and hw_free, since AVIRT requires these for intermediate processing, whether or not a given Audio Path may need them. - Separate PCM ops into separate playback and capture ops tables Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2018-11-13Refactor/tidy snd_avirt_private_dataMark Farrugia1-3/+3
Make void* audiopath a struct and_avirt_audiopath, standardize naming in the struct Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2018-11-08Add private data structure to PCM for audio path managementJames O'Shannessy1-0/+10
Expand upon the private data structure currently used by avirt to allow audio paths to store own user data to PCM implementation. Signed-off-by: James O'Shannessy <james.oshannessy@fiberdyne.com.au>
2018-11-01Only expose streams mapped to audiopaths on configure() cbMark Farrugia1-32/+16
When the configure() callback occurs for each audiopath, we only want those streams that are mapped to the given audiopath to be exposed to the audiopath. E.g. only streams mapped to loopback should be propagated to loopback via configure() callback, rather than all streams. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2018-10-31Remove coreinfo, absorb version info into coreMark Farrugia1-10/+1
Since coreinfo only has version info, and this is not being used at all, we can absorb the version info into the private avirt_core structure. We could in future implement a function to retrieve the version, when, and if, it is required. Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2018-10-26Refactor all avirt_ symbols to have have snd prefix, as per Linux soundMark Farrugia1-27/+27
This will aid the eventual migration the the upstream mainline Linux kernel Fix some checkpatch warnings, and other compiler warnings Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
2018-10-26Move system-leavel header to sound directoryMark Farrugia1-0/+122
Change include guards to reflect Linux sound driver format Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>