Just posted a bit on my findings here: Support for the D-Link DCS-930L Webcam
I was lucky enough to have an old working firmware that I could use as an initial image, and the sysupgrade to a recent OpenWrt version from there. This so far only works on DCS-930 A1, but I have two B1 versions too that I hope to get working. not sure if DCS-932L is A1 or B1 version, but I'm guessing the sae approach should work there too.