Add setAllowedNetworkTypeBitmap

There are currently two methods that cover the network family types:
setPreferredNetworkType and setPreferredNetworkTypeBitmap. They both
serve a similar purpose and have been previously interpreted as a
suggestion to the modem on the type of networks requested by the OS.

This change introduces a new method (setAllowedNetworkTypeBitmap) which
will coexist with these methods. This new method must be interpreted as
a strict set of Radio Access Technology (RAT) that should be accepted by
the modem.

For instance, one may first use setAllowedNetworkTypeBitmap to exclude
2G technology from the list of usable RAT. Then, they may use
setPreferredNetworkType to describe their preference for 4G.

Test: mm
Bug: 171791177
Change-Id: I7f5fdf9bf5a80c47e9ad838b740b2d6e40ffea60
Merged-In: I7f5fdf9bf5a80c47e9ad838b740b2d6e40ffea60

1 files changed, 15 insertions, 0 deletions

diff --git a/radio/1.6/IRadio.hal b/radio/1.6/IRadio.hal
index eb20542e7e..747b2f2ddc 100644
--- a/radio/1.6/IRadio.hal
+++ b/radio/1.6/IRadio.hal
@@ -21,6 +21,7 @@ import @1.0::CdmaSmsMessage;
 import @1.0::GsmSmsMessage;
 import @1.1::CardPowerState;
 import @1.2::DataRequestReason;
+import @1.4::RadioAccessFamily;
 import @1.5::IRadio;
 import @1.5::AccessNetwork;
 import @1.5::DataProfileInfo;
@@ -305,4 +306,18 @@ interface IRadio extends @1.5::IRadio {
      * Response function is IRadioResponse.cancelHandoverResponse()
      */
     oneway cancelHandover(int32_t serial, int32_t callId);
+
+    /**
+     * Requests to set the network type for searching and registering.
+     *
+     * Instruct the radio to *only* accept the types of network provided. This
+     * is stronger than setPreferredNetworkType which is a suggestion.
+     *
+     * @param serial Serial number of request.
+     * @param networkTypeBitmap a 32-bit bearer bitmap of RadioAccessFamily
+     *
+     * Response callbask is IRadioResponse.setNetworkTypeBitmapResponse()
+     */
+    oneway setAllowedNetworkTypeBitmap(
+            uint32_t serial, bitfield<RadioAccessFamily> networkTypeBitmap);
 };