Control eS305 voice processing effects

Changed RW rights for voice processing configuration through sysfs

Added audio effect configuration file which declares the Audience
 voice processing effect library and declares the effect libraries
 and configuration (changes to camcorder) only for this device.
 It also uses the "bundle" effect library for post-processing.

Added voice processing effect wrapper for NS, AGC, AEC, which
 are handled by the eS305.

Modified audio HAL to not handle eS305 control, but delegate to
 effect wrapper by informing it of current IO handle, and
 eS305 preset according to current route.
 HAL also always reports that echo cancellation is supported.

Bug 7230361

Change-Id: I0ed54d50d45e556cc0ea9ea29cd238632b6f7f17
diff --git a/audio_effects.conf b/audio_effects.conf
new file mode 100644
index 0000000..a9704e4
--- /dev/null
+++ b/audio_effects.conf
@@ -0,0 +1,139 @@
+# List of effect libraries to load. Each library element must contain a "path" element
+# giving the full path of the library .so file.
+#    libraries {
+#        <lib name> {
+#          path <lib path>
+#        }
+#    }
+libraries {
+  bundle {
+    path /system/lib/soundfx/libbundlewrapper.so
+  }
+  reverb {
+    path /system/lib/soundfx/libreverbwrapper.so
+  }
+  visualizer {
+    path /system/lib/soundfx/libvisualizer.so
+  }
+  audience_pre_processing {
+    path /system/lib/soundfx/libaudience_voicefx.so
+  }
+  downmix {
+    path /system/lib/soundfx/libdownmix.so
+  }
+}
+
+# list of effects to load. Each effect element must contain a "library" and a "uuid" element.
+# The value of the "library" element must correspond to the name of one library element in the
+# "libraries" element.
+# The name of the effect element is indicative, only the value of the "uuid" element
+# designates the effect.
+# The uuid is the implementation specific UUID as specified by the effect vendor. This is not the
+# generic effect type UUID.
+#    effects {
+#        <fx name> {
+#            library <lib name>
+#            uuid <effect uuid>
+#        }
+#        ...
+#    }
+
+effects {
+  bassboost {
+    library bundle
+    uuid 8631f300-72e2-11df-b57e-0002a5d5c51b
+  }
+  virtualizer {
+    library bundle
+    uuid 1d4033c0-8557-11df-9f2d-0002a5d5c51b
+  }
+  equalizer {
+    library bundle
+    uuid ce772f20-847d-11df-bb17-0002a5d5c51b
+  }
+  volume {
+    library bundle
+    uuid 119341a0-8469-11df-81f9-0002a5d5c51b
+  }
+  reverb_env_aux {
+    library reverb
+    uuid 4a387fc0-8ab3-11df-8bad-0002a5d5c51b
+  }
+  reverb_env_ins {
+    library reverb
+    uuid c7a511a0-a3bb-11df-860e-0002a5d5c51b
+  }
+  reverb_pre_aux {
+    library reverb
+    uuid f29a1400-a3bb-11df-8ddc-0002a5d5c51b
+  }
+  reverb_pre_ins {
+    library reverb
+    uuid 172cdf00-a3bc-11df-a72f-0002a5d5c51b
+  }
+  visualizer {
+    library visualizer
+    uuid d069d9e0-8329-11df-9168-0002a5d5c51b
+  }
+  downmix {
+    library downmix
+    uuid 93f04452-e4fe-41cc-91f9-e475b6d1d69f
+  }
+  agc {
+    library audience_pre_processing
+    uuid e9e87eb0-0b55-11e2-892e-0800200c9a66
+  }
+  aec {
+    library audience_pre_processing
+    uuid fd90ff00-0b55-11e2-892e-0800200c9a66
+  }
+  ns {
+    library audience_pre_processing
+    uuid 08fa98b0-0b56-11e2-892e-0800200c9a66
+  }
+}
+# Audio preprocessor configurations.
+# The pre processor configuration consists in a list of elements each describing
+# pre processor settings for a given input source. Valid input source names are:
+# "mic", "camcorder", "voice_recognition", "voice_communication"
+# Each input source element contains a list of effects elements. The name of the effect
+# element must be the name of one of the effects in the "effects" list of the file.
+# Each effect element may optionally contain a list of parameters and their
+# default value to apply when the pre processor effect is created.
+# A parameter is defined by a "param" element and a "value" element. Each of these elements
+# consists in one or more elements specifying a type followed by a value.
+# The types defined are: "int", "short", "float", "bool" and "string"
+# When both "param" and "value" are a single int, a simple form is allowed where just
+# the param and value pair is present in the parameter description
+#    pre_processing {
+#        <input source name> {
+#            <fx name> {
+#                <param 1 name> {
+#                    param {
+#                        int|short|float|bool|string <value>
+#                        [ int|short|float|bool|string <value> ]
+#                        ...
+#                    }
+#                    value {
+#                        int|short|float|bool|string <value>
+#                        [ int|short|float|bool|string <value> ]
+#                        ...
+#                    }
+#                }
+#                <param 2 name > {<param> <value>}
+#                ...
+#            }
+#            ...
+#        }
+#        ...
+#    }
+
+pre_processing {
+    voice_communication {
+        aec {}
+        ns {}
+    }
+    camcorder {
+        agc {}
+    }
+}