Add HAL for pdu session id support

* Add in HAL support for AOSP allocating pdu session ids from modem
* Add in HAL support that notifies modem when a handover has begun and was cannceled
(clean cherry pick)

Test: N/A
Bug: 161572859
Change-Id: I2771b4773381ba68f482a80e743bdbb05a8e59d1
Merged-In: I2771b4773381ba68f482a80e743bdbb05a8e59d1

radio/1.6/IRadio.hal

@@ -205,4 +205,67 @@ interface IRadio extends @1.5::IRadio {
      * Response callback is IRadioResponse.isNRDualConnectivityEnabledResponse()
      */
     oneway isNrDualConnectivityEnabled(int32_t serial);
+
+    /**
+     * Reserves an unallocated pdu session id from the pool of ids.
+     *
+     * The allocated id is returned in the response.
+     *
+     * When the id is no longer needed, call releasePduSessionId to
+     * return it to the pool.
+     *
+     * Reference: 3GPP TS 24.007 section 11.2.3.1b
+     *
+     * @param serial Serial number of request.
+     *
+     * Response function is IRadioResponse.allocatePduSessionIdResponse()
+     */
+    oneway allocatePduSessionId(int32_t serial);
+
+    /**
+     * Releases a pdu session id that was previously allocated using
+     * allocatePduSessionId.
+     *
+     * Reference: 3GPP TS 24.007 section 11.2.3.1b
+     * @param serial Serial number of request.
+     * @param id Pdu session id to release.
+     *
+     * Response function is IRadioResponse.releasePduSessionIdResponse()
+     */
+    oneway releasePduSessionId(int32_t serial, int32_t id);
+
+    /**
+     * Indicates that a handover to the IWLAN transport has begun.
+     *
+     * Any resources being transferred to the IWlan transport cannot be released while a
+     * handover is underway. For example, if a pdu session id needs to be
+     * transferred to IWlan, then, the modem should not release the id while
+     * the handover is in progress.
+     *
+     * If a handover was unsuccessful, then the framework calls IRadio::cancelHandover.
+     * The modem retains ownership over any of the resources being transferred to IWlan.
+     *
+     * If a handover was successful, the framework calls IRadio::deactivateDataCall with reason
+     * HANDOVER. The IWlan transport now owns the transferred resources and is responsible for
+     * releasing them.
+     *
+     * @param serial Serial number of request.
+     * @param id callId The identifier of the data call which is provided in SetupDataCallResult
+     *
+     * Response function is IRadioResponse.beginHandoverResponse()
+     */
+    oneway beginHandover(int32_t serial, int32_t callId);
+
+    /**
+     * Indicates that a handover was cancelled after a call to IRadio::beginHandover.
+     *
+     * Since the handover was unsuccessful, the modem retains ownership over any of the resources
+     * being transferred and is still responsible for releasing them.
+     *
+     * @param serial Serial number of request.
+     * @param id callId The identifier of the data call which is provided in SetupDataCallResult
+     *
+     * Response function is IRadioResponse.cancelHandoverResponse()
+     */
+    oneway cancelHandover(int32_t serial, int32_t callId);
 };

radio/1.6/IRadioResponse.hal

@@ -222,4 +222,56 @@ interface IRadioResponse extends @1.5::IRadioResponse {
      *   RadioError:INTERNAL_ERR
      */
     oneway isNrDualConnectivityEnabledResponse(RadioResponseInfo info, bool isEnabled);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     * @param id The allocated id. On an error, this is set to -1
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:NO_RESOURCES- Indicates that no pdu session ids are available
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     */
+    oneway allocatePduSessionIdResponse(RadioResponseInfo info, int32_t id);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:NO_RESOURCES
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     */
+    oneway releasePduSessionIdResponse(RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:NO_RESOURCES
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:INVALID_CALL_ID
+     */
+    oneway beginHandoverResponse(RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     * @param dcResponse Attributes of data call
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:NO_RESOURCES
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:INVALID_CALL_ID
+     */
+    oneway cancelHandoverResponse(RadioResponseInfo info);
 };

radio/1.6/types.hal

@@ -254,6 +254,14 @@ struct SetupDataCallResult {
 
     /** Specifies the fallback mode on an IWLAN handover failure. */
     HandoverFailureMode handoverFailureMode;
+
+    /**
+     * The allocated pdu session id for this data call.
+     * A value of -1 means no pdu session id was attached to this call.
+     *
+     * Reference: 3GPP TS 24.007 section 11.2.3.1b
+     */
+    int32_t pduSessionId;
 };
 
 /**

radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h

@@ -80,6 +80,9 @@ class RadioResponse_v1_6 : public ::android::hardware::radio::V1_6::IRadioRespon
     bool enableModemResponseToggle;
     bool isNRDualConnectivityEnabled;
 
+    // Pdu Session Id and Handover
+    int32_t allocatedPduSessionId;
+
     ::android::hardware::hidl_bitfield<::android::hardware::radio::V1_4::RadioAccessFamily>
             networkTypeBitmapResponse;
 
@@ -771,6 +774,18 @@ class RadioResponse_v1_6 : public ::android::hardware::radio::V1_6::IRadioRespon
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
     Return<void> isNrDualConnectivityEnabledResponse(
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info, bool isEnabled);
+
+    Return<void> allocatePduSessionIdResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info, int32_t id);
+
+    Return<void> releasePduSessionIdResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
+
+    Return<void> beginHandoverResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
+
+    Return<void> cancelHandoverResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
 };
 
 /* Callback class for radio indication */

radio/1.6/vts/functional/radio_response.cpp

@@ -1113,3 +1113,32 @@ Return<void> RadioResponse_v1_6::isNrDualConnectivityEnabledResponse(
     parent_v1_6.notify(info.serial);
     return Void();
 }
+
+Return<void> RadioResponse_v1_6::allocatePduSessionIdResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info, int32_t id) {
+    rspInfo = info;
+    allocatedPduSessionId = id;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioResponse_v1_6::releasePduSessionIdResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioResponse_v1_6::beginHandoverResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioResponse_v1_6::cancelHandoverResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}