diff --git a/radio/1.0/ISap.hal b/radio/1.0/ISap.hal
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+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio@1.0;
+
+import ISapCallback;
+
+interface ISap {
+    /**
+     * Set callback that has response and unsolicited indication functions
+     *
+     * @param sapCallback Object containing response and unosolicited indication callbacks
+     */
+    setCallback(ISapCallback sapCallback);
+
+    /**
+     * CONNECT_REQ from SAP 1.1 spec 5.1.1
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     * @param maxMsgSize MaxMsgSize to be used for SIM Access Profile connection
+     */
+    oneway connectReq(int32_t token, int32_t maxMsgSize);
+
+    /**
+     * DISCONNECT_REQ from SAP 1.1 spec 5.1.3
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     */
+    oneway disconnectReq(int32_t token);
+
+    /**
+     * TRANSFER_APDU_REQ from SAP 1.1 spec 5.1.6
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     * @param type APDU command type
+     * @param command CommandAPDU/CommandAPDU7816 parameter depending on type
+     */
+    oneway apduReq(int32_t token, SapApduType type, vec<uint8_t> command);
+
+    /**
+     * TRANSFER_ATR_REQ from SAP 1.1 spec 5.1.8
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     */
+    oneway transferAtrReq(int32_t token);
+
+    /**
+     * POWER_SIM_OFF_REQ and POWER_SIM_ON_REQ from SAP 1.1 spec 5.1.10 + 5.1.12
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     * @param state true for on, false for off
+     */
+    oneway powerReq(int32_t token, bool state);
+
+    /**
+     * RESET_SIM_REQ from SAP 1.1 spec 5.1.14
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     */
+    oneway resetSimReq(int32_t token);
+
+    /**
+     * TRANSFER_CARD_READER_STATUS_REQ from SAP 1.1 spec 5.1.17
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     */
+    oneway transferCardReaderStatusReq(int32_t token);
+
+    /**
+     * SET_TRANSPORT_PROTOCOL_REQ from SAP 1.1 spec 5.1.20
+     *
+     * @param token Id to match req-resp. Resp must include same token.
+     * @param transferProtocol Transport Protocol
+     */
+    oneway setTransferProtocolReq(int32_t token, SapTransferProtocol transferProtocol);
+};
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