merge in jb-mr1-release history after reset to jb-mr1-dev
diff --git a/include/hardware/camera2.h b/include/hardware/camera2.h
index 518130b..8209985 100644
--- a/include/hardware/camera2.h
+++ b/include/hardware/camera2.h
@@ -96,22 +96,11 @@
 
 } camera2_stream_ops_t;
 
+/**
+ * Temporary definition during transition. TODO: Remove once HALs no longer
+ * reference this */
 enum {
-    /**
-     * Special pixel format value used to indicate that the framework does not care
-     * what exact pixel format is to be used for an output stream. The device HAL is
-     * free to select any pixel format, platform-specific and otherwise, and this
-     * opaque value will be passed on to the platform gralloc module when buffers
-     * need to be allocated for the stream.
-     */
-    CAMERA2_HAL_PIXEL_FORMAT_OPAQUE     = -1,
-    /**
-     * Special pixel format value used to indicate that the framework will use
-     * the output buffers for zero-shutter-lag mode; these buffers should be
-     * efficient to produce at full sensor resolution, and efficient to send
-     * into a reprocess stream for final output processing.
-     */
-    CAMERA2_HAL_PIXEL_FORMAT_ZSL = -2
+    CAMERA2_HAL_PIXEL_FORMAT_OPAQUE = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED
 };
 
 /**
@@ -564,11 +553,12 @@
      * Input parameters:
      *
      * - width, height, format: Specification for the buffers to be sent through
-     *   this stream. Format is a value from the HAL_PIXEL_FORMAT_* list, or
-     *   CAMERA2_HAL_PIXEL_FORMAT_OPAQUE. In the latter case, the camera device
-     *   must select an appropriate (possible platform-specific) HAL pixel
-     *   format to return in format_actual. In the former case, format_actual
-     *   must be set to match format.
+     *   this stream. Format is a value from the HAL_PIXEL_FORMAT_* list. If
+     *   HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED is used, then the platform
+     *   gralloc module will select a format based on the usage flags provided
+     *   by the camera HAL and the consumer of the stream. The camera HAL should
+     *   inspect the buffers handed to it in the register_stream_buffers call to
+     *   obtain the implementation-specific format if necessary.
      *
      * - stream_ops: A structure of function pointers for obtaining and queuing
      *   up buffers for this stream. The underlying stream will be configured
@@ -581,15 +571,6 @@
      *   used in incoming requests to identify the stream, and in releasing the
      *   stream.
      *
-     * - format_actual: If the input format is CAMERA2_HAL_PIXEL_FORMAT_OPAQUE,
-     *   then device must select the appropriate (possible platform-specific)
-     *   pixel format and return it in *format_actual. It will be treated as an
-     *   opaque value by the framework, and simply passed to the gralloc module
-     *   when new buffers need to be allocated. If the input format is one of
-     *   the values from HAL_PIXEL_FORMAT_* list, then *format_actual must be
-     *   set equal to format. In the latter case, format_actual may also be
-     *   NULL, in which case it can be ignored as an output.
-     *
      * - usage: The gralloc usage mask needed by the HAL device for producing
      *   the requested type of data. This is used in allocating new gralloc
      *   buffers for the stream buffer queue.
@@ -608,7 +589,7 @@
             const camera2_stream_ops_t *stream_ops,
             // outputs
             uint32_t *stream_id,
-            uint32_t *format_actual,
+            uint32_t *format_actual, // IGNORED, will be removed
             uint32_t *usage,
             uint32_t *max_buffers);
 
@@ -619,7 +600,10 @@
      * otherwise prepare the buffers for later use. num_buffers is guaranteed to
      * be at least max_buffers (from allocate_stream), but may be larger. The
      * buffers will already be locked for use. At the end of the call, all the
-     * buffers must be ready to be returned to the queue.
+     * buffers must be ready to be returned to the queue. If the stream format
+     * was set to HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, the camera HAL should
+     * inspect the passed-in buffers here to determine any platform-private
+     * pixel format information.
      */
     int (*register_stream_buffers)(
             const struct camera2_device *,
diff --git a/include/hardware/gralloc.h b/include/hardware/gralloc.h
index 86ed95c..4fdd2e6 100644
--- a/include/hardware/gralloc.h
+++ b/include/hardware/gralloc.h
@@ -80,6 +80,8 @@
     GRALLOC_USAGE_HW_CAMERA_WRITE       = 0x00020000,
     /* buffer will be read by the HW camera pipeline */
     GRALLOC_USAGE_HW_CAMERA_READ        = 0x00040000,
+    /* buffer will be used as part of zero-shutter-lag queue */
+    GRALLOC_USAGE_HW_CAMERA_ZSL         = 0x00080000,
     /* mask for the software usage bit-mask */
     GRALLOC_USAGE_HW_MASK               = 0x00071F00,
 
diff --git a/include/hardware/hardware.h b/include/hardware/hardware.h
index 78c4572..416ae39 100644
--- a/include/hardware/hardware.h
+++ b/include/hardware/hardware.h
@@ -37,6 +37,12 @@
 #define HARDWARE_MAKE_API_VERSION(maj,min) \
             ((((maj) & 0xff) << 8) | ((min) & 0xff))
 
+#define HARDWARE_MAKE_API_VERSION_2(maj,min,hdr) \
+            ((((maj) & 0xff) << 24) | (((min) & 0xff) << 16) | ((hdr) & 0xffff))
+#define HARDWARE_API_VERSION_2_MAJ_MIN_MASK 0xffff0000
+#define HARDWARE_API_VERSION_2_HEADER_MASK  0x0000ffff
+
+
 /*
  * The current HAL API version.
  *
@@ -60,11 +66,13 @@
  * Use this macro to set the hw_module_t.module_api_version field.
  */
 #define HARDWARE_MODULE_API_VERSION(maj,min) HARDWARE_MAKE_API_VERSION(maj,min)
+#define HARDWARE_MODULE_API_VERSION_2(maj,min,hdr) HARDWARE_MAKE_API_VERSION_2(maj,min,hdr)
 
 /*
  * Use this macro to set the hw_device_t.version field
  */
 #define HARDWARE_DEVICE_API_VERSION(maj,min) HARDWARE_MAKE_API_VERSION(maj,min)
+#define HARDWARE_DEVICE_API_VERSION_2(maj,min,hdr) HARDWARE_MAKE_API_VERSION_2(maj,min,hdr)
 
 struct hw_module_t;
 struct hw_module_methods_t;
diff --git a/include/hardware/hwcomposer.h b/include/hardware/hwcomposer.h
index 29ea54c..0a4d40d 100644
--- a/include/hardware/hwcomposer.h
+++ b/include/hardware/hwcomposer.h
@@ -270,7 +270,7 @@
      * received and HWC_EVENT_VSYNC is enabled on a display
      * (see: hwc_event_control).
      *
-     * the "dpy" parameter indicates which display the vsync event is for.
+     * the "disp" parameter indicates which display the vsync event is for.
      * the "timestamp" parameter is the system monotonic clock timestamp in
      *   nanosecond of when the vsync event happened.
      *
@@ -285,7 +285,27 @@
      * can either stop or continue to process VSYNC events, but must not
      * crash or cause other problems.
      */
-    void (*vsync)(const struct hwc_procs* procs, int dpy, int64_t timestamp);
+    void (*vsync)(const struct hwc_procs* procs, int disp, int64_t timestamp);
+
+    /*
+     * (*hotplug)() is called by the h/w composer HAL when a display is
+     * connected or disconnected. The PRIMARY display is always connected and
+     * the hotplug callback should not be called for it.
+     *
+     * The disp parameter indicates which display type this event is for.
+     * The connected parameter indicates whether the display has just been
+     *   connected (1) or disconnected (0).
+     *
+     * The hotplug() callback may call back into the h/w composer on the same
+     * thread to query refresh rate and dpi for the display. Additionally,
+     * other threads may be calling into the h/w composer while the callback
+     * is in progress.
+     *
+     * This callback will be NULL if the h/w composer is using
+     * HWC_DEVICE_API_VERSION_1_0.
+     */
+    void (*hotplug)(const struct hwc_procs* procs, int disp, int connected);
+
 } hwc_procs_t;
 
 
@@ -384,7 +404,7 @@
      * returns -EINVAL if the "event" parameter is not one of the value above
      * or if the "enabled" parameter is not 0 or 1.
      */
-    int (*eventControl)(struct hwc_composer_device_1* dev, int dpy,
+    int (*eventControl)(struct hwc_composer_device_1* dev, int disp,
             int event, int enabled);
 
     /*
@@ -398,7 +418,7 @@
      *
      * returns 0 on success, negative on error.
      */
-    int (*blank)(struct hwc_composer_device_1* dev, int dpy, int blank);
+    int (*blank)(struct hwc_composer_device_1* dev, int disp, int blank);
 
     /*
      * Used to retrieve information about the h/w composer
@@ -425,6 +445,47 @@
     void (*dump)(struct hwc_composer_device_1* dev, char *buff, int buff_len);
 
     /*
+     * (*getDisplayConfigs)() returns handles for the configurations available
+     * on the connected display. These handles must remain valid as long as the
+     * display is connected.
+     *
+     * Configuration handles are written to configs. The number of entries
+     * allocated by the caller is passed in *numConfigs; getDisplayConfigs must
+     * not try to write more than this number of config handles. On return, the
+     * total number of configurations available for the display is returned in
+     * *numConfigs. If *numConfigs is zero on entry, then configs may be NULL.
+     *
+     * HWC_DEVICE_API_VERSION_1_1 does not provide a way to choose a config.
+     * For displays that support multiple configurations, the h/w composer
+     * implementation should choose one and report it as the first config in
+     * the list. Reporting the not-chosen configs is not required.
+     *
+     * Returns 0 on success or -errno on error.
+     *
+     * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_1 and later.
+     * It should be NULL for previous versions.
+     */
+    int (*getDisplayConfigs)(struct hwc_composer_device_1* dev, int disp,
+            uint32_t* configs, size_t* numConfigs);
+
+    /*
+     * (*getDisplayAttributes)() returns attributes for a specific config of a
+     * connected display. The config parameter is one of the config handles
+     * returned by getDisplayConfigs.
+     *
+     * The list of attributes to return is provided in the attributes
+     * parameter, terminated by HWC_DISPLAY_NO_ATTRIBUTE. The value for each
+     * requested attribute is written in order to the values array. The
+     * HWC_DISPLAY_NO_ATTRIBUTE attribute does not have a value, so the values
+     * array will have one less value than the attributes array.
+     *
+     * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_1 and later.
+     * It should be NULL for previous versions.
+     */
+    void (*getDisplayAttributes)(struct hwc_composer_device_1* dev, int disp,
+            uint32_t config, const uint32_t* attributes, int32_t* values);
+
+    /*
      * Reserved for future use. Must be NULL.
      */
     void* reserved_proc[4];
diff --git a/include/hardware/hwcomposer_defs.h b/include/hardware/hwcomposer_defs.h
index f0f97fc..04f4c2c 100644
--- a/include/hardware/hwcomposer_defs.h
+++ b/include/hardware/hwcomposer_defs.h
@@ -28,13 +28,16 @@
 
 /*****************************************************************************/
 
-#define HWC_MODULE_API_VERSION_0_1  HARDWARE_MODULE_API_VERSION(0, 1)
+#define HWC_HEADER_VERSION          1
 
-#define HWC_DEVICE_API_VERSION_0_1  HARDWARE_DEVICE_API_VERSION(0, 1)
-#define HWC_DEVICE_API_VERSION_0_2  HARDWARE_DEVICE_API_VERSION(0, 2)
-#define HWC_DEVICE_API_VERSION_0_3  HARDWARE_DEVICE_API_VERSION(0, 3)
-#define HWC_DEVICE_API_VERSION_1_0  HARDWARE_DEVICE_API_VERSION(1, 0)
-#define HWC_DEVICE_API_VERSION_1_1  HARDWARE_DEVICE_API_VERSION(1, 1)
+#define HWC_MODULE_API_VERSION_0_1  HARDWARE_MODULE_API_VERSION_2(0, 1, HWC_HEADER_VERSION)
+
+#define HWC_DEVICE_API_VERSION_0_1  HARDWARE_DEVICE_API_VERSION_2(0, 1, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_0_2  HARDWARE_DEVICE_API_VERSION_2(0, 2, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_0_3  HARDWARE_DEVICE_API_VERSION_2(0, 3, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_0  HARDWARE_DEVICE_API_VERSION_2(1, 0, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_1  HARDWARE_DEVICE_API_VERSION_2(1, 1, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_2  HARDWARE_DEVICE_API_VERSION_2(1, 2, HWC_HEADER_VERSION)
 
 enum {
     /* hwc_composer_device_t::set failed in EGL */
@@ -129,24 +132,51 @@
 /* attributes queriable with query() */
 enum {
     /*
-     * availability: HWC_DEVICE_API_VERSION_0_2
-     * must return 1 if the background layer is supported, 0 otherwise
+     * Availability: HWC_DEVICE_API_VERSION_0_2
+     * Must return 1 if the background layer is supported, 0 otherwise.
      */
     HWC_BACKGROUND_LAYER_SUPPORTED      = 0,
 
     /*
-     * availability: HWC_DEVICE_API_VERSION_0_3
-     * returns the vsync period in nanosecond
+     * Availability: HWC_DEVICE_API_VERSION_0_3
+     * Returns the vsync period in nanoseconds.
+     *
+     * This query is not used for HWC_DEVICE_API_VERSION_1_1 and later.
+     * Instead, the per-display attribute HWC_DISPLAY_VSYNC_PERIOD is used.
      */
     HWC_VSYNC_PERIOD                    = 1,
 
     /*
-     * availability: HWC_DEVICE_API_VERSION_1_1
-     * returns a mask of supported display types
+     * Availability: HWC_DEVICE_API_VERSION_1_1
+     * Returns a mask of supported display types.
      */
     HWC_DISPLAY_TYPES_SUPPORTED         = 2,
 };
 
+/* display attributes returned by getDisplayAttributes() */
+enum {
+    /* Indicates the end of an attribute list */
+    HWC_DISPLAY_NO_ATTRIBUTE                = 0,
+
+    /* The vsync period in nanoseconds */
+    HWC_DISPLAY_VSYNC_PERIOD                = 1,
+
+    /* The number of pixels in the horizontal and vertical directions. */
+    HWC_DISPLAY_RESOLUTION_X                = 2,
+    HWC_DISPLAY_RESOLUTION_Y                = 3,
+
+    /* The number of pixels per thousand inches of this configuration.
+     *
+     * Scaling DPI by 1000 allows it to be stored in an int without losing
+     * too much precision.
+     *
+     * If the DPI for a configuration is unavailable or the HWC implementation
+     * considers it unreliable, it should set these attributes to zero.
+     */
+    HWC_DISPLAY_DPI_X                       = 4,
+    HWC_DISPLAY_DPI_Y                       = 5,
+};
+
 /* Allowed events for hwc_methods::eventControl() */
 enum {
     HWC_EVENT_VSYNC     = 0
diff --git a/tests/camera2/camera2.cpp b/tests/camera2/camera2.cpp
index 29eef68..f43513e 100644
--- a/tests/camera2/camera2.cpp
+++ b/tests/camera2/camera2.cpp
@@ -240,7 +240,7 @@
             size_t *count) {
         ALOGV("Getting resolutions for format %x", format);
         status_t res;
-        if (format != CAMERA2_HAL_PIXEL_FORMAT_OPAQUE) {
+        if (format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
             camera_metadata_ro_entry_t availableFormats;
             res = find_camera_metadata_ro_entry(mStaticInfo,
                     ANDROID_SCALER_AVAILABLE_FORMATS,
diff --git a/tests/camera2/camera2_utils.cpp b/tests/camera2/camera2_utils.cpp
index ba938d9..cefe29a 100644
--- a/tests/camera2/camera2_utils.cpp
+++ b/tests/camera2/camera2_utils.cpp
@@ -317,7 +317,7 @@
 StreamAdapter::StreamAdapter(sp<ISurfaceTexture> consumer):
         mState(UNINITIALIZED), mDevice(NULL),
         mId(-1),
-        mWidth(0), mHeight(0), mFormatRequested(0)
+        mWidth(0), mHeight(0), mFormat(0)
 {
     mConsumerInterface = new SurfaceTextureClient(consumer);
     camera2_stream_ops::dequeue_buffer = dequeue_buffer;
@@ -342,16 +342,16 @@
 
     mWidth = width;
     mHeight = height;
-    mFormatRequested = format;
+    mFormat = format;
 
     // Allocate device-side stream interface
 
     uint32_t id;
-    uint32_t formatActual;
+    uint32_t formatActual; // ignored
     uint32_t usage;
     uint32_t maxBuffers = 2;
     res = d->ops->allocate_stream(d,
-            mWidth, mHeight, mFormatRequested, getStreamOps(),
+            mWidth, mHeight, mFormat, getStreamOps(),
             &id, &formatActual, &usage, &maxBuffers);
     if (res != OK) {
         ALOGE("%s: Device stream allocation failed: %s (%d)",
@@ -362,7 +362,6 @@
     mDevice = d;
 
     mId = id;
-    mFormat = formatActual;
     mUsage = usage;
     mMaxProducerBuffers = maxBuffers;
 
diff --git a/tests/camera2/camera2_utils.h b/tests/camera2/camera2_utils.h
index 2c9f801..7822f5b 100644
--- a/tests/camera2/camera2_utils.h
+++ b/tests/camera2/camera2_utils.h
@@ -194,8 +194,6 @@
     uint32_t mMaxProducerBuffers;
     uint32_t mMaxConsumerBuffers;
 
-    int mFormatRequested;
-
     const camera2_stream_ops *getStreamOps();
 
     static ANativeWindow* toANW(const camera2_stream_ops_t *w);