Here is a patched AppleHDA for the CA0132 codec, but unfortunately no output volume control, both inputs have volume control.
BTW. with Headphones the sound is very good.
Here is the kext (10.11.1) with working:
Headphone Rear (with amplifier)
Headphone Front (with amplifier)
S/PDIF-Out Rear (not tested)
Output volume control
AppleHDA.CA0132.kext.zip 1.61MB 430 downloads
If you don't use a dsdt and your audio ACPI device name is HDEF you don't need any edits, else set layout-id to 0
If you use voodooHDA and AppleHDAdisabler, remove those kexts
For X99 chipsets (maybe others) you probably need Toleda's AppleHDAControllerpatch
I've made some progress, here a few test files:
for 5.1 sound try this 5.1 no volume control
for 5.1 orange rear jack instead of front HP AppleHDA.kext_orange_rear.zip 1.64MB 41 downloads
for volume control, only rear LineOut and rear HP AppleHDA.kext_2CH.zip
If you have bad sound quality try this one AppleHDA.kext_2CH_s_quali.zip
Here a kext with volume control, output @green rear, black rear, orange rear, and green rear HP.
Another one with volume control, with working front HP, instead rear orange jack
It seems, that the kexts from 10.11 doesn't work any longer @Sierra, so use this updated kexts:
Fully patched kext for HighSierra:
Since AppleALC is working well with this codec, i've not updated the kext any longer. Use the newest AppleALC instead, it contains the same resources.
The AppleALC kext needs the Lilu.kext to work properly!. Copy them to the Clover "Other" folder.
For multichannel and front headphones, you also need this CodecCommander.kext, install it to /L/E and repair permissions
If you want to switch to the headphones or front microphone, try the CA0132AudioSwitcher.zip 52.49KB 3 downloads. Recommended if you use layout-ID 4, select the first output device.
ca0132switcher.png 60.93KB 0 downloads
Here is also a tool that you can play with
CA0132Tool_HP_imp.zip 105.22KB 1 downloads
ca0132tool.png 94.72KB 0 downloads
If you have low volume on your high impedance headphones, try it with higher values. For now only if you use the rear jack.
If someone has found a data-sheet or similar for this codec, please share it, thanks
Some feedback would be usefull, thanks
Please don't add any patches that i've posted on this topic to your projects, when you ask people for donations, thank you.