// Copyright 2021 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto3";

option go_package = "go.chromium.org/chromiumos/config/go/api";

package chromiumos.config.api;

// Configure Semtech proximity sensors.
message ProximityConfig {
  // Define which antenna(s) the proximity sensor protects.
  message Location {
    enum RadioType {
      UNKNOWN = 0;
      WIFI = 1;
      CELLULAR = 2;
    }
    RadioType radio_type = 1;

    // For suffixes like "LEFT", "RIGHT", "0",  "1"
    // One modifier per location, to match device tree.
    string modifier = 2;
  }
  repeated Location location = 1;

  // An empty message indicating that proximity sensor(s) are used,
  // but the config values are stored elsewhere.
  message LegacyProximityConfig {}

  message SemtechProximityConfig {
    message ChannelConfig {
      // Proximity sensor channel: i.e.: 0,1, 3, 3_comb.
      string channel = 1;

      // Proximity sensor hardware gain.
      uint32 hardwaregain = 2;

      // Proximity sensor falling threshold.
      uint32 thresh_falling = 3;

      // Proximity sensor falling hysteresis.
      uint32 thresh_falling_hysteresis = 4;

      // Proximity sensor rising threshold.
      uint32 thresh_rising = 5;

      // Proximity sensor rising hysteresis.
      uint32 thresh_rising_hysteresis = 6;
    }

    repeated ChannelConfig channel_config = 1;

    // Proximity sensor sampling frequency.
    float sampling_frequency = 2;

    // Proximity sensor falling threshold period (debounce).
    uint32 thresh_falling_period = 3;

    // Proximity sensor rising threshold period (debounce).
    uint32 thresh_rising_period = 4;
  }

  message ActivityProximityConfig {}

  oneof config {
    LegacyProximityConfig legacy_config = 2;
    SemtechProximityConfig semtech_config = 3;
    ActivityProximityConfig activity_config = 4;
  }
}