diff --git a/graphics/bufferqueue/2.0/Android.bp b/graphics/bufferqueue/2.0/Android.bp
new file mode 100644
index 0000000..5385f28
--- /dev/null
+++ b/graphics/bufferqueue/2.0/Android.bp
@@ -0,0 +1,27 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.graphics.bufferqueue@2.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IGraphicBufferProducer.hal",
+        "IProducerListener.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "ConnectionType",
+        "SlotIndex",
+        "Status",
+    ],
+    gen_java: true,
+}
+
diff --git a/graphics/bufferqueue/2.0/IGraphicBufferProducer.hal b/graphics/bufferqueue/2.0/IGraphicBufferProducer.hal
new file mode 100644
index 0000000..734c0b4
--- /dev/null
+++ b/graphics/bufferqueue/2.0/IGraphicBufferProducer.hal
@@ -0,0 +1,648 @@
+/*
+ * Copyright (C) 2018 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.graphics.bufferqueue@2.0;
+
+import android.hardware.graphics.common@1.2::HardwareBuffer;
+import android.hardware.graphics.common@1.2::HardwareBufferDescription;
+import android.hardware.graphics.common@1.2::Rect;
+
+import IProducerListener;
+
+/**
+ * Ref: frameworks/native/include/gui/IGraphicBufferProducer.h:
+ *      IGraphicBufferProducer
+ * This is a wrapper/wrapped HAL interface for the actual binder interface.
+ */
+interface IGraphicBufferProducer {
+    /**
+     * Sets the maximum number of buffers that can be dequeued at one time. If
+     * this method succeeds, any new buffer slots shall be both unallocated and
+     * owned by the buffer queue, i.e., they are not owned by the producer or
+     * the consumer. Calling this may cause some buffer slots to be emptied. If
+     * the caller is caching the contents of the buffer slots, it must empty
+     * that cache after calling this method.
+     *
+     * @p maxDequeuedBuffers must not be less than the number of currently
+     * dequeued buffer slots; otherwise, the returned @p status shall be
+     * `BAD_VALUE`.
+     *
+     * @p maxDequeuedBuffers must be at least 1 (inclusive), but at most
+     * (`NUM_BUFFER_SLOTS` - the minimum undequeued buffer count) (exclusive).
+     * The minimum undequeued buffer count can be obtained by calling
+     * `query(ANATIVEWINDOW_QUERY_MIN_UNDEQUEUED_BUFFERS)`.
+     *
+     * Before calling setMaxDequeuedBufferCount(), the caller must make sure
+     * that
+     *   - @p maxDequeuedBuffers is greater than or equal to 1.
+     *   - @p maxDequeuedBuffers is greater than or equal to the number of
+     *     currently dequeued buffer slots.
+     * If any of these conditions do not hold, or if the request to set the new
+     * maximum number of dequeued buffers cannot be accomplished for any other
+     * reasons, `BAD_VALUE` shall be returned in @p status.
+     *
+     * @param maxDequeuedBuffers The desired number of buffers that can be
+     *     dequeued at one time.
+     * @return status Status of the call.
+     */
+    setMaxDequeuedBufferCount(
+            int32_t maxDequeuedBuffers
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Assigns a newly created buffer to the given slot index. The client is
+     * expected to mirror the slot-to-buffer mapping so that it is not necessary
+     * to transfer a `HardwareBuffer` object for every dequeue operation.
+     *
+     * If @p slot is not a valid slot index corresponding to a dequeued buffer,
+     * the call shall fail with @p status set to `BAD_VALUE`.
+     *
+     * @param slot Slot index.
+     * @return status Status of the call.
+     * @return buffer New buffer associated to the given slot index.
+     */
+    requestBuffer(
+            int32_t slot
+        ) generates (
+            Status status,
+            HardwareBuffer buffer
+        );
+
+    /**
+     * Sets the async flag: whether the producer intends to asynchronously queue
+     * buffers without blocking. Typically this is used for triple-buffering
+     * and/or when the swap interval is set to zero.
+     *
+     * Enabling async mode may internally allocate an additional buffer to allow
+     * for the asynchronous behavior. If it is not enabled, queue/dequeue calls
+     * may block.
+     *
+     * Changing the async flag may affect the number of available slots. If the
+     * adjustment to the number of slots cannot be made, @p status shall be set
+     * to `BAD_VALUE`.
+     *
+     * @param async True if the asynchronous operation is desired; false
+     *     otherwise.
+     * @return status Status of the call.
+     */
+    setAsyncMode(
+            bool async
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Input data for dequeueBuffer() specifying desired attributes of a buffer
+     * to dequeue.
+     *
+     * This structure contains 4 fields from
+     * +llndk libnativewindow#AHardwareBuffer_Desc.
+     *
+     * The `width` and `height` parameters must be no greater than the minimum
+     * of `GL_MAX_VIEWPORT_DIMS` and `GL_MAX_TEXTURE_SIZE` (see:
+     * glGetIntegerv()). An error due to invalid dimensions may not be reported
+     * until updateTexImage() is called.
+     *
+     * If `width` and `height` are both zero, the default dimensions shall be
+     * used. If only one of `width` and `height` is zero, dequeueBuffer() shall
+     * return `BAD_VALUE` in `status`.
+     *
+     * If `format` is zero, the default format shall be used.
+     *
+     * `usage` shall be merged with the usage flags set from the consumer side.
+     *
+     * @sa +llndk libnativewindow#AHardwareBuffer_Desc.
+     */
+    struct DequeueBufferInput {
+        uint32_t width;
+        uint32_t height;
+        uint32_t format;
+        uint64_t usage;
+    };
+
+    /**
+     * Output data for dequeueBuffer().
+     *
+     * A `DequeueBufferOutput` object returned from dequeueBuffer() shall be
+     * valid if and only if `status` returned from the same call is `OK`.
+     */
+    struct DequeueBufferOutput {
+        /**
+         * The number of frames that have elapsed since the buffer was last
+         * queued.
+         */
+        uint64_t bufferAge;
+        /**
+         * Whether the client must call requestBuffer().
+         */
+        bool bufferNeedsReallocation;
+        /**
+         * Whether the client must discard the mirrored slot-to-buffer
+         * mapping.
+         */
+        bool releaseAllBuffers;
+        /**
+         * Fence associated with the buffer.
+         *
+         * If this is an empty fence, the buffer may be written immediately;
+         * otherwise, the buffer must not be written to until the fence signals.
+         */
+        Fence fence;
+    };
+
+    /**
+     * Requests a new buffer slot for the client to use. Ownership of the slot
+     * is transfered to the client, meaning that the server shall not use the
+     * contents of the buffer associated with that slot.
+     *
+     * On success, @p status shall be `OK`, and @p output shall contain valid
+     * information of the call. Otherwise, the contents of @p output are
+     * meaningless.
+     *
+     * The slot index returned in @p slot may or may not contain a buffer
+     * (client-side). If the slot is empty, the client must call
+     * requestBuffer() to assign a new buffer to that slot.
+     *
+     * Once the client is done filling this buffer, it is expected to transfer
+     * buffer ownership back to the server with either cancelBuffer() on
+     * the dequeued slot or to fill in the contents of its associated buffer
+     * contents and call queueBuffer().
+     *
+     * If dequeueBuffer() returns with `output.releaseAllBuffers` set to `true`,
+     * the client is expected to release all of the mirrored slot-to-buffer
+     * mappings.
+     *
+     * If dequeueBuffer() returns with `output.bufferNeedsReallocation` set to
+     * `true`, the client is expected to call requestBuffer() immediately.
+     *
+     * The returned `output.fence` shall be updated to hold the fence associated
+     * with the buffer. The contents of the buffer must not be overwritten until
+     * the fence signals. If the fence is an empty fence, the buffer may be
+     * written immediately.
+     *
+     * This call shall block until a buffer is available to be dequeued. If
+     * both the producer and consumer are controlled by the app, then this call
+     * can never block and shall return `WOULD_BLOCK` in @p status if no buffer
+     * is available.
+     *
+     * If a dequeue operation shall cause certain conditions on the number of
+     * buffers to be violated (such as the maximum number of dequeued buffers),
+     * @p status shall be set to `INVALID_OPERATION` to indicate failure.
+     *
+     * If a dequeue operation cannot be completed within the time period
+     * previously set by setDequeueTimeout(), the return @p status shall
+     * `TIMED_OUT`.
+     *
+     * See @ref DequeueBufferInput for more information on the @p input
+     * parameter.
+     *
+     * @param input See #DequeueBufferInput for more information.
+     * @param status Status of the call.
+     * @param slot Slot index.
+     * @param output See #DequeueBufferOutput for more information.
+     *
+     * @sa queueBuffer(), requestBuffer().
+     */
+    dequeueBuffer(
+            DequeueBufferInput input
+        ) generates (
+            Status status,
+            int32_t slot,
+            DequeueBufferOutput output
+        );
+
+    /**
+     * Attempts to remove all ownership of the buffer in the given slot from the
+     * buffer queue.
+     *
+     * If this call succeeds, the slot shall be freed, and there shall be no way
+     * to obtain the buffer from this interface. The freed slot shall remain
+     * unallocated until either it is selected to hold a freshly allocated
+     * buffer in dequeueBuffer() or a buffer is attached to the slot. The buffer
+     * must have already been dequeued, and the caller must already possesses
+     * the buffer (i.e., must have called requestBuffer()).
+     *
+     * @param slot Slot index.
+     * @return status Status of the call.
+     */
+    detachBuffer(
+            int32_t slot
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Dequeues a buffer slot, requests the buffer associated to the slot, and
+     * detaches it from the buffer queue. This is equivalent to calling
+     * dequeueBuffer(), requestBuffer(), and detachBuffer() in succession except
+     * for two things:
+     *   1. It is unnecessary to provide a #DequeueBufferInput object.
+     *   2. The call shall not block, since if it cannot find an appropriate
+     *      buffer to return, it shall return an error instead.
+     *
+     * Only slots that are free but still contain a buffer shall be considered,
+     * and the oldest of those shall be returned. @p buffer is equivalent to the
+     * buffer that would be returned from requestBuffer(), and @p fence is
+     * equivalent to the fence that would be returned from dequeueBuffer().
+     *
+     * @return status Status of the call.
+     * @return buffer Buffer just released from the buffer queue.
+     * @return fence Fence associated to @p buffer.
+     *
+     * @sa dequeueBuffer(), requestBuffer(), detachBuffer().
+     */
+    detachNextBuffer(
+        ) generates (
+            Status status,
+            HardwareBuffer buffer,
+            Fence fence
+        );
+
+    /**
+     * Attempts to transfer ownership of a buffer to the buffer queue.
+     *
+     * If this call succeeds, it shall be as if this buffer was dequeued from the
+     * returned slot index. As such, this call shall fail if attaching this
+     * buffer would cause too many buffers to be simultaneously dequeued.
+     *
+     * If the returned @p releaseAllBuffers is `true`, the caller is expected to
+     * release all of the mirrored slot-to-buffer mappings.
+     *
+     * See dequeueBuffer() for conditions that may cause the call to fail.
+     *
+     * @param buffer Buffer to attach to the buffer queue.
+     * @return status Status of the call.
+     * @return slot Slot index assigned to @p buffer.
+     * @return releaseAllBuffers Whether the caller is expected to release all
+     *     of the mirrored slot-to-buffer mappings.
+     *
+     * @sa dequeueBuffer().
+     */
+    attachBuffer(
+            HardwareBuffer buffer
+        ) generates (
+            Status status,
+            int32_t slot,
+            bool releaseAllBuffers
+        );
+
+    struct QueueBufferInput {
+        /**
+         * Timestamp in nanoseconds.
+         */
+        int64_t timestamp;
+        /**
+         * Whether the timestamp was synthesized at queue time.
+         */
+        bool isAutoTimestamp;
+        /**
+         * Dataspace of the contents.
+         *
+         * @sa +ndk libnativewindow#ADataSpace.
+         */
+        int32_t dataSpace;
+        /**
+         * Crop rectangle that is used as a hint to the consumer.
+         */
+        Rect crop;
+        /**
+         * Transformation flags.
+         *
+         * @sa +ndk libnativewindow#ANativeWindowTransform.
+         */
+        int32_t transform;
+        /**
+         * The sticky transform set in Surface (only used by the LEGACY camera
+         * mode).
+         *
+         * @sa +ndk libnativewindow#ANativeWindowTransform.
+         */
+        int32_t stickyTransform;
+        /**
+         * Fence that the consumer must wait on before reading the buffer. An
+         * empty fence indicates that the buffer is ready immediately.
+         */
+        Fence fence;
+        /**
+         * List of rectangular pieces covering the damage region.
+         */
+        vec<Rect> surfaceDamage;
+    };
+
+    /**
+     * Information about the queued buffer. `QueueBufferOutput` is used in both
+     * queueBuffer() and connect().
+     */
+    struct QueueBufferOutput {
+        /**
+         * Default width of a buffer in the buffer queue.
+         */
+        uint32_t width;
+        /**
+         * Default height of a buffer in the buffer queue.
+         */
+        uint32_t height;
+        /**
+         * The transform hint of the buffer queue.
+         *
+         * @sa +ndk libnativewindow#ANativeWindowTransform.
+         */
+        int32_t transformHint;
+        /**
+         * The number of pending buffers in the buffer queue. If this is
+         * returned from queueBuffer(), the number shall include the buffer that
+         * has just been queued.
+         */
+        uint32_t numPendingBuffers;
+        /**
+         * The frame number of the next frame. The buffer queue maintains this
+         * number and makes sure that it is increasing for every successful
+         * queueBuffer() call.
+         */
+        uint64_t nextFrameNumber;
+        /**
+         * After a successful queueBuffer() call, #bufferReplaced shall be set to
+         * true if the queued buffer replaced a previously queued buffer that
+         * has not been consumed.
+         */
+        bool bufferReplaced;
+    };
+
+    /**
+     * Indicates that the client has finished filling in the contents of the
+     * buffer associated with slot and transfers ownership of that slot back to
+     * the buffer queue.
+     *
+     * @p status may be set to `BAD_VALUE` if any of the following conditions
+     * hold:
+     *   - The buffer queue is operating in the asynchronous mode, and the
+     *     buffer count was smaller than the maximum number of buffers that can
+     *     be allocated at once.
+     *   - @p slot is an invalid slot index, i.e., the slot is not owned by the
+     *     client by previously calling dequeueBuffer(), requestBuffer() or
+     *     attachBuffer().
+     *   - The crop rectangle is not contained in the buffer.
+     *
+     * Upon success, the output shall be filled with meaningful values
+     * (refer to the documentation of @ref QueueBufferOutput).
+     *
+     * @param slot Slot index.
+     * @param input See @ref QueueBufferInput.
+     * @return status Status of the call.
+     * @return output See @ref QueueBufferOutput.
+     *
+     * @sa #QueueBufferInput, #QueueBufferOutput, dequeueBuffer().
+     */
+    queueBuffer(
+            int32_t slot,
+            QueueBufferInput input
+        ) generates (
+            Status status,
+            QueueBufferOutput output
+        );
+
+    /**
+     * Indicates that the client does not wish to fill in the buffer associated
+     * with the slot and transfers ownership of the slot back to the server. The
+     * buffer is not queued for use by the consumer.
+     *
+     * If @p fence is not an empty fence, the buffer shall not be overwritten
+     * until the fence signals. @p fence is usually obtained from
+     * dequeueBuffer().
+     *
+     * @param slot Slot index.
+     * @param fence Fence for the canceled buffer.
+     * @return status Status of the call.
+     */
+    cancelBuffer(
+            int32_t slot,
+            Fence fence
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Retrieves information for this surface.
+     *
+     * @param what What to query. @p what must be one of the values in
+     *     +llndk libnativewindow#ANativeWindowQuery.
+     * @return status Status of the call.
+     * @return value The value queried. The set of possible values depends on
+     *     the value of @p what.
+     *
+     * @sa +llndk libnativewindow#ANativeWindowQuery.
+     */
+    query(
+            int32_t what
+        ) generates (
+            int32_t result,
+            int32_t value
+        );
+
+    /**
+     * Attempts to connect the client as a producer of the buffer queue.
+     * This method must be called before any other methods in this interface.
+     *
+     * If the buffer queue does not have a consumer ready (connected), the
+     * return @p status shall be `NO_INIT`.
+     *
+     * If any of the following conditions hold, the error code `BAD_VALUE` shall
+     * be reported in @p status:
+     *   - The producer is already connected.
+     *   - The number of available slots cannot be adjusted to accommodate the
+     *     supplied value of @p producerControlledByApp.
+     *
+     * @param listener An optional callback object that can be provided if the
+     *     client wants to be notified when the consumer releases a buffer back
+     *     to the buffer queue.
+     * @param api How the client shall write to buffers.
+     * @param producerControlledByApp `true` if the producer is hosted by an
+     *     untrusted process (typically application-forked processes). If both
+     *     the producer and the consumer are controlled by app, the buffer queue
+     *     shall operate in the asynchronous mode regardless of the async flag
+     *     set by setAsyncMode().
+     * @return status Status of the call.
+     * @return output See #QueueBufferOutput for more information.
+     *
+     * @sa #QueueBufferOutput, disconnect(), setAsyncMode().
+     */
+    connect(
+            IProducerListener listener,
+            ConnectionType api,
+            bool producerControlledByApp
+        ) generates (
+            Status status,
+            QueueBufferOutput output
+        );
+
+    /**
+     * Attempts to disconnect the client from the producer end of the buffer
+     * queue.
+     *
+     * Calling this method shall cause any subsequent calls to other
+     * @ref IGraphicBufferProducer methods apart from connect() to fail.
+     * A successful connect() call afterwards may allow other methods to succeed
+     * again.
+     *
+     * Disconnecting from an abandoned buffer queue is legal and is considered a
+     * no-op.
+     *
+     * @param api The type of connection to disconnect. Supplying the value of
+     *     `CURRENTLY_CONNECTED` to @p api has the same effect as supplying the
+     *     current connection type. If the producer end is not connected,
+     *     supplying `CURRENTLY_CONNECTED` shall result in a successful no-op
+     *     call.
+     * @return status Status of the call.
+     *
+     * @sa connect().
+     */
+    disconnect(
+            ConnectionType api
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Allocates buffers based on the given dimensions, format and usage.
+     *
+     * This function shall allocate up to the maximum number of buffers
+     * permitted by the current buffer queue configuration. It shall use the
+     * given format, dimensions, and usage bits, which are interpreted in the
+     * same way as for dequeueBuffer(), and the async flag must be set the same
+     * way as for dequeueBuffer() to ensure that the correct number of buffers
+     * are allocated. This is most useful to avoid an allocation delay during
+     * dequeueBuffer(). If there are already the maximum number of buffers
+     * allocated, this function has no effect.
+     *
+     * A value of 0 in @p width, @p height or @p format indicates that the
+     * buffer queue can pick the default value.
+     *
+     * @param width Width of buffers to allocate.
+     * @param height Height of buffers to allocate.
+     * @param format Format of buffers to allocate.
+     * @param usage Usage of bufferes to allocate.
+     * @return status Status of the call.
+     */
+    allocateBuffers(
+            uint32_t width,
+            uint32_t height,
+            uint32_t format,
+            uint64_t usage
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Sets whether dequeueBuffer() is allowed to allocate new buffers.
+     *
+     * Normally dequeueBuffer() does not discriminate between free slots which
+     * already have an allocated buffer and those which do not, and shall
+     * allocate a new buffer if the slot doesn't have a buffer or if the slot's
+     * buffer doesn't match the requested size, format, or usage. This method
+     * allows the producer to restrict the eligible slots to those which already
+     * have an allocated buffer of the correct size, format, and usage. If no
+     * eligible slot is available, dequeueBuffer() shall block or return an
+     * error.
+     *
+     * @param allow Whether to allow new buffers to be allocated in
+     *     dequeueBuffer().
+     * @return status Status of the call.
+     */
+    allowAllocation(
+            bool allow
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Sets the current generation number of the buffer queue.
+     *
+     * This generation number shall be inserted into any buffers allocated by the
+     * buffer queue, and any attempts to attach a buffer with a different
+     * generation number shall fail. Buffers already in the queue are not
+     * affected and shall retain their current generation number. The generation
+     * number defaults to 0, i.e., buffers allocated before the first call to
+     * setGenerationNumber() shall be given 0 as their generation numbers.
+     *
+     * @param generationNumber New generation number. The client must make sure
+     *     that @p generationNumber is different from the previous generation
+     *     number if it wants to deprecate old buffers.
+     * @return status Status of the call.
+     */
+    setGenerationNumber(
+            uint32_t generationNumber
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Sets how long dequeueBuffer() shall wait for a buffer to become available
+     * before returning an error `TIMED_OUT`.
+     *
+     * This timeout also affects the attachBuffer() call, which shall block if
+     * there is not a free slot available into which the attached buffer can be
+     * placed.
+     *
+     * By default, the buffer queue shall wait forever, which is equivalent to
+     * setting @p timeoutNs equal to any negative number (such as `-1`). If
+     * @p timeoutNs is non-negative, setDequeueTimeout() shall disable
+     * non-blocking mode and its corresponding spare buffer (which is used to
+     * ensure a buffer is always available).
+     *
+     * Changing the dequeue timeout may affect the number of buffers. (See
+     * setAsyncMode().) If the adjustment to the number of buffers inside the
+     * buffer queue is not feasible, @p status shall be set to `BAD_VALUE`.
+     *
+     * @param timeoutNs Amount of time dequeueBuffer() is allowed to block
+     *     before returning `TIMED_OUT`. If @p timeoutNs is negative,
+     *     dequeueBuffer() shall not be able to return `TIMED_OUT`. Instead, it
+     *     may block forever or return `WOULD_BLOCK`.
+     * @return status Status of the call.
+     *
+     * @sa dequeueBuffer(), setAsyncMode(), query().
+     */
+    setDequeueTimeout(
+            int64_t timeoutNs
+        ) generates (
+            Status status
+        );
+
+    /**
+     * Returns a unique id for this buffer queue.
+     *
+     * @return id System-wide unique id of the buffer queue.
+     */
+    getUniqueId(
+        ) generates (
+            uint64_t id
+        );
+
+    /**
+     * Returns the name of the connected consumer.
+     *
+     * \note This is used for debugging only.
+     *
+     * @return name Name of the consumer.
+     */
+    getConsumerName(
+        ) generates (
+            string name
+        );
+
+};
+
diff --git a/graphics/bufferqueue/2.0/IProducerListener.hal b/graphics/bufferqueue/2.0/IProducerListener.hal
new file mode 100644
index 0000000..bc478ed
--- /dev/null
+++ b/graphics/bufferqueue/2.0/IProducerListener.hal
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2018 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.graphics.bufferqueue@2.0;
+
+/**
+ * Listener interface.
+ */
+interface IProducerListener {
+    /**
+     * Notifies the listener when buffers are released.
+     *
+     * This function is usually called by the consumer.
+     *
+     * @param count The number of buffers released (since the last call to
+     *     onBufferReleased()).
+     */
+    oneway onBuffersReleased(uint32_t count);
+};
+
diff --git a/graphics/bufferqueue/2.0/types.hal b/graphics/bufferqueue/2.0/types.hal
new file mode 100644
index 0000000..f6bc2d9
--- /dev/null
+++ b/graphics/bufferqueue/2.0/types.hal
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2018 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.graphics.bufferqueue@2.0;
+
+/**
+ * Possible return values from a function call.
+ */
+enum Status : int32_t {
+    /**
+     * The call succeeds.
+     */
+    OK = 0,
+    /**
+     * The function fails allocate memory.
+     */
+    NO_MEMORY = -12,
+    /**
+     * The buffer queue has been abandoned, no consumer is connected, or no
+     * producer is connected at the time of the call.
+     */
+    NO_INIT = -19,
+    /**
+     * Some of the provided input arguments are invalid.
+     */
+    BAD_VALUE = -22,
+    /**
+     * An unexpected death of some object prevents the operation from
+     * continuing.
+     *
+     * @note This status value is different from a transaction failure, which
+     * should be detected by isOk().
+     */
+    DEAD_OBJECT = -32,
+    /**
+     * The internal state of the buffer queue does not permit the operation.
+     */
+    INVALID_OPERATION = -38,
+    /**
+     * The call fails to finish within the specified time limit.
+     */
+    TIMED_OUT = -110,
+    /**
+     * The buffer queue is operating in a non-blocking mode, but the call cannot
+     * be completed without blocking.
+     */
+    WOULD_BLOCK = 0xfffffffb,
+    /**
+     * The call fails because of a reason not listed above.
+     */
+    UNKNOWN_ERROR = 0xffffffff,
+};
+
+/**
+ * Special values for a slot index.
+ */
+enum SlotIndex : int32_t {
+    /**
+     * Invalid/unspecified slot index. This may be returned from a function that
+     * returns a slot index if the call is unsuccessful.
+     */
+    INVALID = -1,
+    UNSPECIFIED = -1,
+};
+
+/**
+ * An "empty" fence can be an empty handle (containing no fds and no ints) or a
+ * fence with one fd that is equal to -1 and no ints.
+ *
+ * A valid fence is an empty fence or a native handle with exactly one fd and no
+ * ints.
+ */
+typedef handle Fence;
+
+/**
+ * How buffers shall be produced. One of these values must be provided in a call
+ * to IGraphicBufferProducer::connect() and
+ * IGraphicBufferProducer::disconnect().
+ */
+enum ConnectionType : int32_t {
+    /**
+     * This value can be used only as an input to
+     * IGraphicBufferProducer::disconnect().
+     */
+    CURRENTLY_CONNECTED = -1,
+    /**
+     * Buffers shall be queued by EGL via `eglSwapBuffers()` after being filled
+     * using OpenGL ES.
+     */
+    EGL = 1,
+    /**
+     * Buffers shall be queued after being filled using the CPU.
+     */
+    CPU = 2,
+    /**
+     * Buffers shall be queued by Stagefright after being filled by a video
+     * decoder. The video decoder can either be a software or hardware decoder.
+     */
+    MEDIA = 3,
+    /**
+     * Buffers shall be queued by the camera HAL.
+     */
+    CAMERA = 4,
+};
+
+
diff --git a/graphics/common/1.2/Android.bp b/graphics/common/1.2/Android.bp
index a86f3b5..a3ebdbf 100644
--- a/graphics/common/1.2/Android.bp
+++ b/graphics/common/1.2/Android.bp
@@ -15,7 +15,9 @@
         "android.hardware.graphics.common@1.1",
     ],
     types: [
+        "ColorMode",
         "Dataspace",
+        "HardwareBuffer",
     ],
     gen_java: true,
     gen_java_constants: true,
diff --git a/graphics/common/1.2/types.hal b/graphics/common/1.2/types.hal
index cf4e34a..15f2c14 100644
--- a/graphics/common/1.2/types.hal
+++ b/graphics/common/1.2/types.hal
@@ -51,3 +51,39 @@
      */
     DISPLAY_BT2020 = 13,
 };
+
+/**
+ * HIDL counterpart of `AHardwareBuffer_Desc`.
+ *
+ * An `AHardwareBuffer_Desc` object can be converted to and from a
+ * `HardwareBufferDescription` object by `memcpy()`.
+ *
+ * @sa +ndk libnativewindow#AHardwareBuffer_Desc.
+ */
+typedef uint32_t[10] HardwareBufferDescription;
+
+/**
+ * HIDL counterpart of `AHardwareBuffer`.
+ *
+ * AHardwareBuffer_createFromHandle() can be used to convert a `HardwareBuffer`
+ * object to an `AHardwareBuffer` object.
+ *
+ * Conversely, AHardwareBuffer_getNativeHandle() can be used to extract a native
+ * handle from an `AHardwareBuffer` object. Paired with `AHardwareBuffer_Desc`,
+ * AHardwareBuffer_getNativeHandle() can be used to convert between
+ * `HardwareBuffer` and `AHardwareBuffer`.
+ *
+ * @sa +ndk libnativewindow#AHardwareBuffer".
+ */
+struct HardwareBuffer {
+    HardwareBufferDescription description;
+    handle nativeHandle;
+};
+
+/**
+ * HIDL counterpart of `ARect`.
+ *
+ * @sa +ndk libarect_headers#ARect.
+ */
+typedef int32_t[4] Rect;
+