tree a6e9bad28f6a4461e31b2cadcdd5eb9f18791163
parent aa85a2d4b4988f5fe8271a076866c0669bb793f2
author Andreas Eversberg <jolly@eversberg.eu> 1360236093 +0100
committer Harald Welte <laforge@gnumonks.org> 1373146575 +0200

Add MPH and TCH primitives to layer 1 SAP

In order to control layer 1 via primitives, MPH primitives are required.
There is only one (MPH-INFO) primitive defined in TS 04.04 for all control
and measurement functions. A type identifier inside this primitive is used
to differentiate between different functions.

The TCH primitives are used to carry traffic. TCH primitives carry voice
or data traffic, whereas PH-DATA primitives carry FACCH data.

PH_RTS and TCH_RTS (ready-to-send) primitives are used to poll requests
from upper layers.