| page.title=GPS |
| pdk.version=1.0 |
| doc.type=porting |
| @jd:body |
| |
| <div id="qv-wrapper"> |
| <div id="qv"> |
| <h2>In this document</h2> |
| <a name="toc"/> |
| <ul> |
| <li><a href="#androidGPSBuildingDriver">Building a GPS Library</a></li> |
| <li><a href="#androidGPSInterface">Interface</a></li> |
| </ul> |
| </div> |
| </div> |
| |
| <p>Android defines a user space C abstraction interface for GPS hardware. The interface header is defined in <code>include/hardware/gps.h</code>. In order to integate GPS with Android, you need to build a shared library that implements this interface. </p> |
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| |
| <a name="androidGPSBuildingDriver"></a><h3>Building a GPS Library</h3> |
| |
| <p>To implement a GPS driver, create a shared library that implements the interface defined in <code>gps.h</code>. You must name your shared library <code>libgps.so</code> so that it will get loaded from <code>/system/lib</code> at runtime. Place GPS sources and Android.mk in <code>vendor/acme/chipset_or_board/gps/</code> (where "acme" is your organization name and "chipset_or_board" is your hardware target).</p> |
| |
| <p>The following stub <code>Android.mk</code> file ensures that <code>libgps</code> compiles and links to the appropriate libraries:</p> |
| |
| <pre class="prettify"> |
| LOCAL_PATH := $(call my-dir) |
| include $(CLEAR_VARS) |
| |
| LOCAL_MODULE := libgps |
| |
| LOCAL_STATIC_LIBRARIES:= \ |
| # include any static library dependencies |
| |
| LOCAL_SHARED_LIBRARIES := \ |
| # include any shared library dependencies |
| |
| LOCAL_SRC_FILES += \ |
| # include your source files. eg. MyGpsLibrary.cpp |
| |
| LOCAL_CFLAGS += \ |
| # include any needed compile flags |
| |
| LOCAL_C_INCLUDES:= \ |
| # include any needed local header files |
| |
| include $(BUILD_SHARED_LIBRARY) |
| </pre> |
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| |
| <a name="androidGPSInterface"></a><h3>Interface</h3> |
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| <p><span class="lh3"><a name="androidDoxygenNote"></a></span> |
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| <p class="note"><strong>Note</strong>: This document relies on some Doxygen-generated content that appears in an iFrame below. To return to the Doxygen default content for this page, <a href="gps.html">click here</a>.</p> |
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