src/devices/lib/amlogic/include/soc/aml-common/aml-audio.h

// Copyright 2020 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_DEVICES_LIB_AMLOGIC_INCLUDE_SOC_AML_COMMON_AML_AUDIO_H_
#define SRC_DEVICES_LIB_AMLOGIC_INCLUDE_SOC_AML_COMMON_AML_AUDIO_H_

#include <ddktl/metadata/audio.h>

namespace metadata {

static constexpr uint32_t kMaxNumberOfLanes = 4;
static constexpr uint32_t kMaxAmlConfigString = 32;

enum class AmlVersion : uint32_t {
  kS905D2G = 1,  // Also works with T931G.
  kS905D3G = 2,
};

enum class AmlBus : uint32_t {
  TDM_A = 1,
  TDM_B = 2,
  TDM_C = 3,
};

struct AmlConfig {
  char manufacturer[kMaxAmlConfigString];
  char product_name[kMaxAmlConfigString];
  bool is_input;
  uint32_t mClockDivFactor;
  uint32_t sClockDivFactor;
  uint8_t number_of_channels;
  uint32_t swaps;  // Configures routing, one channel per nibble.
  uint32_t lanes_enable_mask[kMaxNumberOfLanes];
  AmlBus bus;
  AmlVersion version;
  Tdm tdm;
  // How many channels to configure in each codec, not needed for I2S (implicitly 2).
  uint32_t codecs_number_of_channels[metadata::kMaxNumberOfCodecs];
  // Channel to enable in each codec.
  uint8_t codecs_channels_mask[metadata::kMaxNumberOfCodecs];
  // Configures L+R mixing, one bit per channel pair.
  uint8_t mix_mask;
};

}  // namespace metadata

#endif  // SRC_DEVICES_LIB_AMLOGIC_INCLUDE_SOC_AML_COMMON_AML_AUDIO_H_