ipc4: add updwmix module support

[abonislawski]

Up Down Mixer module
Conversions supported:
Up/Downmixing for stereo output:
1, 2, 2.1, 3.0, 3.1, Quatro, 4.0, 5.0, 5.1, 7.1 -> 2
Upmixing for multichannel output:
1, 2 -> 5.1
2 -> 7.1
Downmixing for mono output:
4.0, Quatro, 3.1,
2 -> 1
At initial release only hifi3 version is supported.

Signed-off-by: Bartosz Kokoszko bartoszx.kokoszko@linux.intel.com
Signed-off-by: Adrian Bonislawski adrian.bonislawski@intel.com

[lgirdwood]

Need to remove all the assert() but otherwise minor stuff. The frag API is slower than the new method that @singalsu is using and we should update.

[dbaluta]

@abonislawski Question: in the case of upmixing for example 2 -> 5.1 does it mean that your DAI (SSP in Intel case) supports 6 channels right?

How is this configured?

[lgirdwood]

@abonislawski Question: in the case of upmixing for example 2 -> 5.1 does it mean that your DAI (SSP in Intel case) supports 6 channels right?

How is this configured?

It's for HDMI and can be configured in the topology e.g user opens a stereo stream and topology defines the HDMI output at 5.1 with the updwmix module in the pipe.

[lgirdwood]

@abonislawski pls see #5300 for efficient copy() updates usage (i.e non usage of frag API). Can be mostly copied here.

[singalsu]

Please write this without write frag function. It performs horribly slow.

[lgirdwood]

Need to pass the error up the stack, but otherwise good.

[lgirdwood]

Just need to remove the xtensa Cmake change and we are good.

[lgirdwood]

@abonislawski looks like doxygen is reporting a single issue in CI.

[abonislawski]

@lgirdwood doxygen and a few spelling errors fixed