Import of the watch repository from Pebble

src/fw/services/normal/voice_endpoint.h

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "services/normal/audio_endpoint.h"
+#include "services/normal/voice/transcription.h"
+#include "util/attributes.h"
+#include "util/uuid.h"
+
+#include <inttypes.h>
+#include <stdlib.h>
+
+typedef enum {
+  VoiceEndpointSessionTypeDictation = 0x01,
+  VoiceEndpointSessionTypeCommand = 0x02,   // Not used yet
+  VoiceEndpointSessionTypeNLP = 0x03,
+
+  VoiceEndpointSessionTypeCount,
+} VoiceEndpointSessionType;
+
+typedef enum {
+  VoiceEndpointResultSuccess = 0x00,
+  VoiceEndpointResultFailServiceUnavailable = 0x01,
+  VoiceEndpointResultFailTimeout = 0x02,
+  VoiceEndpointResultFailRecognizerError = 0x03,
+  VoiceEndpointResultFailInvalidRecognizerResponse = 0x04,
+  VoiceEndpointResultFailDisabled = 0x05,
+  VoiceEndpointResultFailInvalidMessage = 0x06,
+} VoiceEndpointResult;
+
+// Sent before Speex encoded data
+typedef struct PACKED {
+  char version[20];
+  uint32_t sample_rate;
+  uint16_t bit_rate;
+  uint8_t bitstream_version;
+  uint16_t frame_size;
+} AudioTransferInfoSpeex;
+
+//! Called by the voice service to set up a dictation or command recognition session
+void voice_endpoint_setup_session(VoiceEndpointSessionType session_type,
+    AudioEndpointSessionId session_id, AudioTransferInfoSpeex *info, Uuid *app_uuid);