RE: [RFC] AGPS Support

[Marcel Holtmann <marcel@holtmann.org>]

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Hi Waldo,

> > > For other modems sending the raw RRC/RRLP frames I guess the transcoding to XML
> > > would need to happen in the ofono driver or in ofono core if you want
> > > to expose an
> > > oFono XML API.
> 
> > so here is my take on XML. If we have to parse it, then in general that
> > is a bad idea. Creating XML is just fine.
> 
> You need both as it's not only a matter of converting the raw RRC/RRLP frames from
> the modem to XML, but the responses from the GPS engine are presumably in XML format as well
> then and the modem driver would need to parse that and re-create RRC/RRLP frames again (for modem that expects raw RRC/RRLP frames). See the tables in section 8.55 of 27.007 for the XML schemas. It refers to the ASN.1 syntax for the definition of the value ranges.

and so is parsing of ASN.1 actually. Since oFono core will not look into
this and treat it as a stream of bytes, we will have to make one modem
vendor suffer more than others.

So what is useful for the applications using this D-Bus based API?

Regards

Marcel