include: android: Add Android headers from Cros

Copy the Android Camera3 HAL headers from the ChromiumOS build system
and define a new inclusion directive in the meson build system for them.

The header files have been copied from:
https://chromium.googlesource.com/chromiumos/platform2
at revision 9e65ddd2c496e712f005ada9715decd2ff8e4a03
and provide:

1) Android CameraHAL3 HAL headers in include/android/hardware/
2) The Android system headers in include/android/system/
3) The Android camera metadata headers in include/android/metadata/

The original path in the Cros platform2/ repository is, respectively:
camera/android/header_files/include/hardware
camera/android/header_files/include/system
camera/android/libcamera_metadata/include/

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 100 insertions, 0 deletions

diff --git a/include/android/metadata/camera_metadata_hidden.h b/include/android/metadata/camera_metadata_hidden.h
new file mode 100644
index 00000000..31f1ad19
--- /dev/null
+++ b/include/android/metadata/camera_metadata_hidden.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2014 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.
+ */
+
+#ifndef SYSTEM_MEDIA_PRIVATE_INCLUDE_CAMERA_METADATA_HIDDEN_H
+#define SYSTEM_MEDIA_PRIVATE_INCLUDE_CAMERA_METADATA_HIDDEN_H
+
+#include <system/camera_vendor_tags.h>
+
+/**
+ * Error codes returned by vendor tags ops operations. These are intended
+ * to be used by all framework code that uses the return values from the
+ * vendor operations object.
+ */
+#define VENDOR_SECTION_NAME_ERR   NULL
+#define VENDOR_TAG_NAME_ERR       NULL
+#define VENDOR_TAG_COUNT_ERR      (-1)
+#define VENDOR_TAG_TYPE_ERR       (-1)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/** **These are private functions for use only by the camera framework.** **/
+
+/**
+ * Set the global vendor tag operations object used to define vendor tag
+ * structure when parsing camera metadata with functions defined in
+ * system/media/camera/include/camera_metadata.h.
+ */
+ANDROID_API
+int set_camera_metadata_vendor_ops(const vendor_tag_ops_t *query_ops);
+
+/**
+ * Set the global vendor tag cache operations object used to define vendor tag
+ * structure when parsing camera metadata with functions defined in
+ * system/media/camera/include/camera_metadata.h.
+ */
+ANDROID_API
+int set_camera_metadata_vendor_cache_ops(
+        const struct vendor_tag_cache_ops *query_cache_ops);
+
+/**
+ * Set the vendor id for a particular metadata buffer.
+ */
+ANDROID_API
+void set_camera_metadata_vendor_id(camera_metadata_t *meta,
+        metadata_vendor_id_t id);
+
+/**
+ * Retrieve the vendor id for a particular metadata buffer.
+ */
+ANDROID_API
+metadata_vendor_id_t get_camera_metadata_vendor_id(
+        const camera_metadata_t *meta);
+
+/**
+ * Retrieve the type of a tag. Returns -1 if no such tag is defined.
+ */
+ANDROID_API
+int get_local_camera_metadata_tag_type_vendor_id(uint32_t tag,
+        metadata_vendor_id_t id);
+
+/**
+ * Retrieve the name of a tag. Returns NULL if no such tag is defined.
+ */
+ANDROID_API
+const char *get_local_camera_metadata_tag_name_vendor_id(uint32_t tag,
+        metadata_vendor_id_t id);
+
+/**
+ * Retrieve the name of a tag section. Returns NULL if no such tag is defined.
+ */
+ANDROID_API
+const char *get_local_camera_metadata_section_name_vendor_id(uint32_t tag,
+        metadata_vendor_id_t id);
+
+/**
+ * Retrieve the type of a tag. Returns -1 if no such tag is defined.
+ */
+ANDROID_API
+int get_local_camera_metadata_tag_type_vendor_id(uint32_t tag,
+        metadata_vendor_id_t id);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* SYSTEM_MEDIA_PRIVATE_INCLUDE_CAMERA_METADATA_HIDDEN_H */