syntax = "proto2";

package chre_audio_concurrency_test;

option java_package = "com.google.android.chre.nanoapp.proto";
option java_outer_classname = "ChreAudioConcurrencyTest";

import "chre_test_common.proto";

// Nanoappp message type can be either host to chre (H2C) or chre to host (C2H)
enum MessageType {
  // Reserved for corrupted messages
  UNDEFINED = 0;

  // H2C: A message to start a test step.
  // Payload must be TestCommand.
  TEST_COMMAND = 1;

  // C2H: A message indicating the test result.
  // Payload must be chre_test_common.TestResult.
  TEST_RESULT = 2;

  // C2H: A message indicating that CHRE audio has been enabled and
  // data has been received, after a previously received ENABLE_AUDIO
  // step from a TEST_COMMAND message. No payload.
  TEST_AUDIO_ENABLED = 3;
}

// A message to start a test step.
message TestCommand {
  enum Step {
    UNDEFINED = 0;
    // Sets up the test by enabling CHRE audio and verifying data reception.
    ENABLE_AUDIO = 1;
    // The host will send this step when the AP has held and released access
    // to the mic. The nanoapp should verify that audio data reception resumes.
    // This occurs with no verification of any gap between audio data events.
    // See ENABLE_AUDIO_WITH_GAP_VERIFICATION.
    VERIFY_AUDIO_RESUME = 2;
    // Sets up the test by enabling CHRE audio and verifying data reception.
    // Also verifies that a gap between CHRE audio data events triggers the
    // appropriate audio sampling status change event.
    ENABLE_AUDIO_WITH_GAP_VERIFICATION = 3;
  }

  // The test step.
  optional Step step = 1;
}