[RFT] CDMA SMS support in QMI modems

[Aleksander Morgado]

Hey;

The 'aleksander/cdma-sms' branch in the git repository implements
CDMA/3GPP2 SMS support in QMI based modems.

The generic SMS interface was extended to include two 3GPP2 specific
properties:
 * TeleserviceId
 * ServiceCategory

Receiving and listing stored SMS messages should work for SMS of any
category; but only for the limited set of fields that I have currently
implemented support for.

Sending SMS messages is currently limited to the WMT TeleserviceId,
which is anyway what you would normally use when sending point-to-point
SMS messages.

Testing should be pretty straightforward; just grab a CDMA QMI-based
modem which implements the 'WMS' service, and:

$ sudo mmcli -m 0 --messaging-create-sms="number=123456789,text='Hello
World',teleservice-id='wmt'"
Successfully created new SMS:
	/org/freedesktop/ModemManager1/SMS/1 (unknown)

$ sudo mmcli -s 1
SMS '/org/freedesktop/ModemManager1/SMS/1'
  -----------------------------------
  Content    |              number: '123456789'
             |                text: 'Hello World'
  -----------------------------------
  Properties |            PDU type: 'cdma-submit'
             |               state: 'unknown'
             |             storage: 'unknown'
             |      teleservice id: 'wmt'


$ sudo mmcli -s 1 --send

I have *not* tested this; so... if anyone has such a modem, a proper
CDMA network around, and SMS enabled in your CDMA plan, please give it a
try and share debug logs of the run :)

-- 
Aleksander