I am currently working on getting Cell Broadcast SMS working on the Nokia
N900 using the stock telephony stack (yes I know ofono supports the N900
but since I dont want to have to replace the dialer, messaging app and who
knows what else, sticking with the stock telephony stack is the only option)
I have already gotten the low level telephony stack parts working and have
a test app that's wired up to a signal sent by the telephony stack.
This signal gives me the following bits of information for the Cell
Broadcast SMS message:
data
data length
serial number
message ID
data coding scheme
page
With my test dumper I was able to dump the one Cell Broadcast SMS message I
can get the local cell tower to send me (a single page message containing
the "name" of the cell tower and a message identifier of 50). I was then
able to hack away at one of the ofono test programs to get this cell
broadcast SMS message to decode so I could verify that I was getting the
correct data.
What I am looking for is:
1.Some information and/or help in figuring out the right way to use the all
the various ofono Cell Broadcast decode functions to decode Cell Broadcast
messages (single and multiple page) and get not just the content of the
message but also information on the type of message and other relavent items.
2.Some information on just which bits of ofono I need to link into my Cell
Broadcast SMS widget (which will be GPL) in order to be able to use the
Cell Broadcast decode functions without pulling in the rest of ofono.
and 3.Any and all example Cell Broadcast SMS messages I can get my hands on
to allow me to verify the parsing and display code once its written (i.e.
the stuff that takes the message, decodes it with the ofono Cell Broadcast
functions and does something useful with the result)
Anything people can point me at regarding this stuff will be much
appreciated (if anyone has userspace code that handles Cell Broadcast SMS
messages which could provide guidance as to how UI for CBSMS should work,
that would help too)
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