Revert "Add APIs to query MMAP support in AAudio."

Revert submission 29709835-query_mmap_support

Reason for revert: Droidmonitor created revert due to b/374754620. Will be verifying through ABTD before submission.

Reverted changes: /q/submissionid:29709835-query_mmap_support

Change-Id: Iaa271ce90bcea34b654a1f55c90f3051d89ac54c
diff --git a/media/audioserver/main_audioserver.cpp b/media/audioserver/main_audioserver.cpp
index b0a2d71..5d7daa4 100644
--- a/media/audioserver/main_audioserver.cpp
+++ b/media/audioserver/main_audioserver.cpp
@@ -190,7 +190,7 @@
         // attempting to call audio flinger on a null pointer could make the process crash
         // and attract attentions.
         std::vector<AudioMMapPolicyInfo> policyInfos;
-        status_t status = AudioSystem::getMmapPolicyInfos(
+        status_t status = sp<IAudioFlinger>::cast(af)->getMmapPolicyInfos(
                 AudioMMapPolicyType::DEFAULT, &policyInfos);
         // Initialize aaudio service when querying mmap policy succeeds and
         // any of the policy supports MMAP.
diff --git a/media/libaaudio/include/aaudio/AAudioTesting.h b/media/libaaudio/include/aaudio/AAudioTesting.h
index 16d6c33..d67ec70 100644
--- a/media/libaaudio/include/aaudio/AAudioTesting.h
+++ b/media/libaaudio/include/aaudio/AAudioTesting.h
@@ -31,225 +31,24 @@
  * They may change or be removed at any time.
  ************************************************************************************/
 
-/**
- * When the audio is played/recorded via AAudio MMAP data path, the apps can write to/read from
- * a shared memory that will also be accessed directly by hardware. That reduces the audio latency.
- * The following values are used to describe how AAudio MMAP is supported.
- */
 enum {
     /**
-     * AAudio MMAP is disabled and never used.
+     * Related feature is disabled and never used.
      */
     AAUDIO_POLICY_NEVER = 1,
 
     /**
-     * AAudio MMAP support depends on device's availability. It will be used
-     * when it is possible or fallback to the normal path, where the audio data
-     * will be delivered via audio framework data pipeline.
+     * If related feature works then use it. Otherwise fall back to something else.
      */
-    AAUDIO_POLICY_AUTO,
+     AAUDIO_POLICY_AUTO,
 
     /**
-     * AAudio MMAP must be used or fail.
+     * Related feature must be used. If not available then fail.
      */
     AAUDIO_POLICY_ALWAYS
 };
 typedef int32_t aaudio_policy_t;
 
-// The values are copied from JAVA SDK device types defined in android/media/AudioDeviceInfo.java
-// When a new value is added, it should be added here and handled by the conversion at
-// AAudioConvert_aaudioToAndroidDeviceType.
-typedef enum AAudio_DeviceType : int32_t {
-    /**
-     * A device type describing the attached earphone speaker.
-     */
-    AAUDIO_DEVICE_BUILTIN_EARPIECE = 1,
-
-    /**
-     * A device type describing the speaker system (i.e. a mono speaker or stereo speakers) built
-     * in a device.
-     */
-    AAUDIO_DEVICE_BUILTIN_SPEAKER = 2,
-
-    /**
-     * A device type describing a headset, which is the combination of a headphones and microphone.
-     */
-    AAUDIO_DEVICE_WIRED_HEADSET = 3,
-
-    /**
-     * A device type describing a pair of wired headphones.
-     */
-    AAUDIO_DEVICE_WIRED_HEADPHONES = 4,
-
-    /**
-     * A device type describing an analog line-level connection.
-     */
-    AAUDIO_DEVICE_LINE_ANALOG = 5,
-
-    /**
-     * A device type describing a digital line connection (e.g. SPDIF).
-     */
-    AAUDIO_DEVICE_LINE_DIGITAL = 6,
-
-    /**
-     * A device type describing a Bluetooth device typically used for telephony.
-     */
-    AAUDIO_DEVICE_BLUETOOTH_SCO = 7,
-
-    /**
-     * A device type describing a Bluetooth device supporting the A2DP profile.
-     */
-    AAUDIO_DEVICE_BLUETOOTH_A2DP = 8,
-
-    /**
-     * A device type describing an HDMI connection .
-     */
-    AAUDIO_DEVICE_HDMI = 9,
-
-    /**
-     * A device type describing the Audio Return Channel of an HDMI connection.
-     */
-    AAUDIO_DEVICE_HDMI_ARC = 10,
-
-    /**
-     * A device type describing a USB audio device.
-     */
-    AAUDIO_DEVICE_USB_DEVICE = 11,
-
-    /**
-     * A device type describing a USB audio device in accessory mode.
-     */
-    AAUDIO_DEVICE_USB_ACCESSORY = 12,
-
-    /**
-     * A device type describing the audio device associated with a dock.
-     * Starting at API 34, this device type only represents digital docks, while docks with an
-     * analog connection are represented with {@link #AAUDIO_DEVICE_DOCK_ANALOG}.
-     */
-    AAUDIO_DEVICE_DOCK = 13,
-
-    /**
-     * A device type associated with the transmission of audio signals over FM.
-     */
-    AAUDIO_DEVICE_FM = 14,
-
-    /**
-     * A device type describing the microphone(s) built in a device.
-     */
-    AAUDIO_DEVICE_BUILTIN_MIC = 15,
-
-    /**
-     * A device type for accessing the audio content transmitted over FM.
-     */
-    AAUDIO_DEVICE_FM_TUNER = 16,
-
-    /**
-     * A device type for accessing the audio content transmitted over the TV tuner system.
-     */
-    AAUDIO_DEVICE_TV_TUNER = 17,
-
-    /**
-     * A device type describing the transmission of audio signals over the telephony network.
-     */
-    AAUDIO_DEVICE_TELEPHONY = 18,
-
-    /**
-     * A device type describing the auxiliary line-level connectors.
-     */
-    AAUDIO_DEVICE_AUX_LINE = 19,
-
-    /**
-     * A device type connected over IP.
-     */
-    AAUDIO_DEVICE_IP = 20,
-
-    /**
-     * A type-agnostic device used for communication with external audio systems.
-     */
-    AAUDIO_DEVICE_BUS = 21,
-
-    /**
-     * A device type describing a USB audio headset.
-     */
-    AAUDIO_DEVICE_USB_HEADSET = 22,
-
-    /**
-     * A device type describing a Hearing Aid.
-     */
-    AAUDIO_DEVICE_HEARING_AID = 23,
-
-    /**
-     * A device type describing the speaker system (i.e. a mono speaker or stereo speakers) built
-     * in a device, that is specifically tuned for outputting sounds like notifications and alarms
-     * (i.e. sounds the user couldn't necessarily anticipate).
-     * <p>Note that this physical audio device may be the same as {@link #TYPE_BUILTIN_SPEAKER}
-     * but is driven differently to safely accommodate the different use case.</p>
-     */
-    AAUDIO_DEVICE_BUILTIN_SPEAKER_SAFE = 24,
-
-    /**
-     * A device type for rerouting audio within the Android framework between mixes and
-     * system applications.
-     */
-    AAUDIO_DEVICE_REMOTE_SUBMIX = 25,
-    /**
-     * A device type describing a Bluetooth Low Energy (BLE) audio headset or headphones.
-     * Headphones are grouped with headsets when the device is a sink:
-     * the features of headsets and headphones with regard to playback are the same.
-     */
-    AAUDIO_DEVICE_BLE_HEADSET = 26,
-
-    /**
-     * A device type describing a Bluetooth Low Energy (BLE) audio speaker.
-     */
-    AAUDIO_DEVICE_BLE_SPEAKER = 27,
-
-    /**
-     * A device type describing an Echo Canceller loopback Reference.
-     * This device is only used when capturing with MediaRecorder.AudioSource.ECHO_REFERENCE,
-     * which requires privileged permission
-     * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT}.
-     *
-     * Note that this is not exposed as it is a system API that requires privileged permission.
-     */
-    // AAUDIO_DEVICE_ECHO_REFERENCE = 28,
-
-    /**
-     * A device type describing the Enhanced Audio Return Channel of an HDMI connection.
-     */
-    AAUDIO_DEVICE_HDMI_EARC = 29,
-
-    /**
-     * A device type describing a Bluetooth Low Energy (BLE) broadcast group.
-     */
-    AAUDIO_DEVICE_BLE_BROADCAST = 30,
-
-    /**
-     * A device type describing the audio device associated with a dock using an analog connection.
-     */
-    AAUDIO_DEVICE_DOCK_ANALOG = 31
-} AAudio_DeviceType;
-
-/**
- * Query how aaudio mmap is supported for the given device type.
- *
- * @param device device type
- * @param direction {@link AAUDIO_DIRECTION_OUTPUT} or {@link AAUDIO_DIRECTION_INPUT}
- * @return the mmap policy or negative error
- */
-AAUDIO_API aaudio_policy_t AAudio_getPlatformMMapPolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction) __INTRODUCED_IN(36);
-
-/**
- * Query how aaudio exclusive mmap is supported for the given device type.
- *
- * @param device device type
- * @param direction {@link AAUDIO_DIRECTION_OUTPUT} or {@link AAUDIO_DIRECTION_INPUT}
- * @return the mmap exclusive policy or negative error
- */
-AAUDIO_API aaudio_policy_t AAudio_getPlatformMMapExclusivePolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction) __INTRODUCED_IN(36);
-
 /**
  * Control whether AAudioStreamBuilder_openStream() will use the new MMAP data path
  * or the older "Legacy" data path.
diff --git a/media/libaaudio/src/core/AAudioAudio.cpp b/media/libaaudio/src/core/AAudioAudio.cpp
index 3315344..1e8ac8d 100644
--- a/media/libaaudio/src/core/AAudioAudio.cpp
+++ b/media/libaaudio/src/core/AAudioAudio.cpp
@@ -53,16 +53,6 @@
     return AudioGlobal_convertStreamStateToText(state);
 }
 
-AAUDIO_API aaudio_policy_t AAudio_getPlatformMMapPolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction) {
-    return AudioGlobal_getPlatformMMapPolicy(device, direction);
-}
-
-AAUDIO_API aaudio_policy_t AAudio_getPlatformMMapExclusivePolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction) {
-    return AudioGlobal_getPlatformMMapExclusivePolicy(device, direction);
-}
-
 static AudioStream *convertAAudioStreamToAudioStream(AAudioStream* stream)
 {
     return (AudioStream*) stream;
diff --git a/media/libaaudio/src/core/AudioGlobal.cpp b/media/libaaudio/src/core/AudioGlobal.cpp
index 3268488..30f9677 100644
--- a/media/libaaudio/src/core/AudioGlobal.cpp
+++ b/media/libaaudio/src/core/AudioGlobal.cpp
@@ -15,13 +15,6 @@
  */
 #include <aaudio/AAudio.h>
 #include <aaudio/AAudioTesting.h>
-#include <android/media/audio/common/AudioDevice.h>
-#include <android/media/audio/common/AudioMMapPolicyInfo.h>
-#include <android/media/audio/common/AudioMMapPolicyType.h>
-#include <media/AidlConversionCppNdk.h>
-#include <media/AudioSystem.h>
-#include <system/audio-hal-enums.h>
-#include <utility/AAudioUtilities.h>
 
 #include "AudioGlobal.h"
 
@@ -30,10 +23,6 @@
  */
 namespace aaudio {
 
-using android::media::audio::common::AudioDevice;
-using android::media::audio::common::AudioMMapPolicyInfo;
-using android::media::audio::common::AudioMMapPolicyType;
-
 static aaudio_policy_t g_MMapPolicy = AAUDIO_UNSPECIFIED;
 
 aaudio_policy_t AudioGlobal_getMMapPolicy() {
@@ -143,39 +132,6 @@
     return "Unrecognized";
 }
 
-namespace {
-
-aaudio_policy_t getPlatformMMapPolicy(AudioMMapPolicyType policyType, AAudio_DeviceType device,
-                                      aaudio_direction_t direction) {
-    if (direction != AAUDIO_DIRECTION_INPUT && direction != AAUDIO_DIRECTION_OUTPUT) {
-        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
-    }
-    const audio_devices_t deviceType = AAudioConvert_aaudioToAndroidDeviceType(device, direction);
-    if (deviceType == AUDIO_DEVICE_NONE) {
-        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
-    }
-
-    AudioMMapPolicyInfo policyInfo;
-    if (android::status_t status = android::AudioSystem::getMmapPolicyForDevice(
-            policyType, deviceType, &policyInfo);
-        status != android::NO_ERROR) {
-        return AAudioConvert_androidToAAudioResult(status);
-    }
-    return AAudioConvert_androidToAAudioMMapPolicy(policyInfo.mmapPolicy);
-}
-
-} // namespace
-
-aaudio_policy_t AudioGlobal_getPlatformMMapPolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction) {
-    return getPlatformMMapPolicy(AudioMMapPolicyType::DEFAULT, device, direction);
-}
-
-aaudio_policy_t AudioGlobal_getPlatformMMapExclusivePolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction) {
-    return getPlatformMMapPolicy(AudioMMapPolicyType::EXCLUSIVE, device, direction);
-}
-
 #undef AAUDIO_CASE_ENUM
 
 }  // namespace aaudio
diff --git a/media/libaaudio/src/core/AudioGlobal.h b/media/libaaudio/src/core/AudioGlobal.h
index 7ff344b..8af49b4 100644
--- a/media/libaaudio/src/core/AudioGlobal.h
+++ b/media/libaaudio/src/core/AudioGlobal.h
@@ -40,11 +40,6 @@
 const char* AudioGlobal_convertSharingModeToText(aaudio_sharing_mode_t mode);
 const char* AudioGlobal_convertStreamStateToText(aaudio_stream_state_t state);
 
-aaudio_policy_t AudioGlobal_getPlatformMMapPolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction);
-aaudio_policy_t AudioGlobal_getPlatformMMapExclusivePolicy(
-        AAudio_DeviceType device, aaudio_direction_t direction);
-
 } // namespace aaudio
 
 #endif  // AAUDIO_AUDIOGLOBAL_H
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
index b0dc669..01f0038 100644
--- a/media/libaaudio/src/core/AudioStreamBuilder.cpp
+++ b/media/libaaudio/src/core/AudioStreamBuilder.cpp
@@ -110,7 +110,7 @@
     std::vector<AudioMMapPolicyInfo> policyInfos;
     aaudio_policy_t mmapPolicy = AudioGlobal_getMMapPolicy();
     ALOGD("%s, global mmap policy is %d", __func__, mmapPolicy);
-    if (status_t status = android::AudioSystem::getMmapPolicyInfos(
+    if (status_t status = android::AudioSystem::getMmapPolicyInfo(
             AudioMMapPolicyType::DEFAULT, &policyInfos); status == NO_ERROR) {
         aaudio_policy_t systemMmapPolicy = AAudio_getAAudioPolicy(
                 policyInfos, AAUDIO_MMAP_POLICY_DEFAULT_AIDL);
@@ -143,7 +143,7 @@
 
     policyInfos.clear();
     aaudio_policy_t mmapExclusivePolicy = AAUDIO_UNSPECIFIED;
-    if (status_t status = android::AudioSystem::getMmapPolicyInfos(
+    if (status_t status = android::AudioSystem::getMmapPolicyInfo(
             AudioMMapPolicyType::EXCLUSIVE, &policyInfos); status == NO_ERROR) {
         mmapExclusivePolicy = AAudio_getAAudioPolicy(
                 policyInfos, AAUDIO_MMAP_EXCLUSIVE_POLICY_DEFAULT_AIDL);
diff --git a/media/libaaudio/src/libaaudio.map.txt b/media/libaaudio/src/libaaudio.map.txt
index 7213393..e28dcb4 100644
--- a/media/libaaudio/src/libaaudio.map.txt
+++ b/media/libaaudio/src/libaaudio.map.txt
@@ -70,8 +70,6 @@
     AAudioStream_getHardwareChannelCount; # introduced=UpsideDownCake
     AAudioStream_getHardwareFormat;       # introduced=UpsideDownCake
     AAudioStream_getHardwareSampleRate;   # introduced=UpsideDownCake
-    AAudio_getPlatformMMapPolicy; # introduced=36
-    AAudio_getPlatformMMapExclusivePolicy; #introduced=36
   local:
     *;
 };
diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
index c741946..3df23ee 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.cpp
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -693,128 +693,3 @@
     }
     return aidl2legacy_aaudio_policy(policy);
 }
-
-audio_devices_t AAudioConvert_aaudioToAndroidDeviceType(AAudio_DeviceType device,
-                                                        aaudio_direction_t direction) {
-    if (direction == AAUDIO_DIRECTION_INPUT) {
-        switch (device) {
-            case AAUDIO_DEVICE_BUILTIN_MIC:
-                return AUDIO_DEVICE_IN_BUILTIN_MIC;
-            case AAUDIO_DEVICE_BLUETOOTH_SCO:
-                return AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
-            case AAUDIO_DEVICE_WIRED_HEADSET:
-                return AUDIO_DEVICE_IN_WIRED_HEADSET;
-            case AAUDIO_DEVICE_HDMI:
-                return AUDIO_DEVICE_IN_HDMI;
-            case AAUDIO_DEVICE_TELEPHONY:
-                return AUDIO_DEVICE_IN_TELEPHONY_RX;
-            case AAUDIO_DEVICE_DOCK:
-                return AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET;
-            case AAUDIO_DEVICE_DOCK_ANALOG:
-                return AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET;
-            case AAUDIO_DEVICE_USB_ACCESSORY:
-                return AUDIO_DEVICE_IN_USB_ACCESSORY;
-            case AAUDIO_DEVICE_USB_DEVICE:
-                return AUDIO_DEVICE_IN_USB_DEVICE;
-            case AAUDIO_DEVICE_USB_HEADSET:
-                return AUDIO_DEVICE_IN_USB_HEADSET;
-            case AAUDIO_DEVICE_FM_TUNER:
-                return AUDIO_DEVICE_IN_FM_TUNER;
-            case AAUDIO_DEVICE_TV_TUNER:
-                return AUDIO_DEVICE_IN_TV_TUNER;
-            case AAUDIO_DEVICE_LINE_ANALOG:
-                return AUDIO_DEVICE_IN_LINE;
-            case AAUDIO_DEVICE_LINE_DIGITAL:
-                return AUDIO_DEVICE_IN_SPDIF;
-            case AAUDIO_DEVICE_BLUETOOTH_A2DP:
-                return AUDIO_DEVICE_IN_BLUETOOTH_A2DP;
-            case AAUDIO_DEVICE_IP:
-                return AUDIO_DEVICE_IN_IP;
-            case AAUDIO_DEVICE_BUS:
-                return AUDIO_DEVICE_IN_BUS;
-            case AAUDIO_DEVICE_REMOTE_SUBMIX:
-                return AUDIO_DEVICE_IN_REMOTE_SUBMIX;
-            case AAUDIO_DEVICE_BLE_HEADSET:
-                return AUDIO_DEVICE_IN_BLE_HEADSET;
-            case AAUDIO_DEVICE_HDMI_ARC:
-                return AUDIO_DEVICE_IN_HDMI_ARC;
-            case AAUDIO_DEVICE_HDMI_EARC:
-                return AUDIO_DEVICE_IN_HDMI_EARC;
-            default:
-                break;
-        }
-    } else {
-        switch (device) {
-            case AAUDIO_DEVICE_BUILTIN_EARPIECE:
-                return AUDIO_DEVICE_OUT_EARPIECE;
-            case AAUDIO_DEVICE_BUILTIN_SPEAKER:
-                return AUDIO_DEVICE_OUT_SPEAKER;
-            case AAUDIO_DEVICE_WIRED_HEADSET:
-                return AUDIO_DEVICE_OUT_WIRED_HEADSET;
-            case AAUDIO_DEVICE_WIRED_HEADPHONES:
-                return AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
-            case AAUDIO_DEVICE_LINE_ANALOG:
-                return AUDIO_DEVICE_OUT_LINE;
-            case AAUDIO_DEVICE_LINE_DIGITAL:
-                return AUDIO_DEVICE_OUT_SPDIF;
-            case AAUDIO_DEVICE_BLUETOOTH_SCO:
-                return AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
-            case AAUDIO_DEVICE_BLUETOOTH_A2DP:
-                return AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
-            case AAUDIO_DEVICE_HDMI:
-                return AUDIO_DEVICE_OUT_HDMI;
-            case AAUDIO_DEVICE_HDMI_ARC:
-                return AUDIO_DEVICE_OUT_HDMI_ARC;
-            case AAUDIO_DEVICE_HDMI_EARC:
-                return AUDIO_DEVICE_OUT_HDMI_EARC;
-            case AAUDIO_DEVICE_USB_DEVICE:
-                return AUDIO_DEVICE_OUT_USB_DEVICE;
-            case AAUDIO_DEVICE_USB_HEADSET:
-                return AUDIO_DEVICE_OUT_USB_HEADSET;
-            case AAUDIO_DEVICE_USB_ACCESSORY:
-                return AUDIO_DEVICE_OUT_USB_ACCESSORY;
-            case AAUDIO_DEVICE_DOCK:
-                return AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
-            case AAUDIO_DEVICE_DOCK_ANALOG:
-                return AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
-            case AAUDIO_DEVICE_FM:
-                return AUDIO_DEVICE_OUT_FM;
-            case AAUDIO_DEVICE_TELEPHONY:
-                return AUDIO_DEVICE_OUT_TELEPHONY_TX;
-            case AAUDIO_DEVICE_AUX_LINE:
-                return AUDIO_DEVICE_OUT_AUX_LINE;
-            case AAUDIO_DEVICE_IP:
-                return AUDIO_DEVICE_OUT_IP;
-            case AAUDIO_DEVICE_BUS:
-                return AUDIO_DEVICE_OUT_BUS;
-            case AAUDIO_DEVICE_HEARING_AID:
-                return AUDIO_DEVICE_OUT_HEARING_AID;
-            case AAUDIO_DEVICE_BUILTIN_SPEAKER_SAFE:
-                return AUDIO_DEVICE_OUT_SPEAKER_SAFE;
-            case AAUDIO_DEVICE_REMOTE_SUBMIX:
-                return AUDIO_DEVICE_OUT_REMOTE_SUBMIX;
-            case AAUDIO_DEVICE_BLE_HEADSET:
-                return AUDIO_DEVICE_OUT_BLE_HEADSET;
-            case AAUDIO_DEVICE_BLE_SPEAKER:
-                return AUDIO_DEVICE_OUT_BLE_SPEAKER;
-            case AAUDIO_DEVICE_BLE_BROADCAST:
-                return AUDIO_DEVICE_OUT_BLE_BROADCAST;
-            default:
-                break;
-        }
-    }
-    return AUDIO_DEVICE_NONE;
-}
-
-aaudio_policy_t AAudioConvert_androidToAAudioMMapPolicy(AudioMMapPolicy policy) {
-    switch (policy) {
-        case AudioMMapPolicy::AUTO:
-            return AAUDIO_POLICY_AUTO;
-        case AudioMMapPolicy::ALWAYS:
-            return AAUDIO_POLICY_ALWAYS;
-        case AudioMMapPolicy::NEVER:
-        case AudioMMapPolicy::UNSPECIFIED:
-        default:
-            return AAUDIO_POLICY_NEVER;
-    }
-}
diff --git a/media/libaaudio/src/utility/AAudioUtilities.h b/media/libaaudio/src/utility/AAudioUtilities.h
index d5069f5..7c351e1 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.h
+++ b/media/libaaudio/src/utility/AAudioUtilities.h
@@ -363,14 +363,4 @@
         android::media::audio::common::AudioMMapPolicy defaultPolicy =
                 android::media::audio::common::AudioMMapPolicy::NEVER);
 
-/**
- * Convert the aaudio device type to android device type. Returns AUDIO_DEVICE_NONE if
- * the given device is not a valid one.
- */
-audio_devices_t AAudioConvert_aaudioToAndroidDeviceType(
-        AAudio_DeviceType device, aaudio_direction_t direction);
-
-aaudio_policy_t AAudioConvert_androidToAAudioMMapPolicy(
-        android::media::audio::common::AudioMMapPolicy policy);
-
 #endif //UTILITY_AAUDIO_UTILITIES_H
diff --git a/media/libaaudio/tests/test_mmap_path.cpp b/media/libaaudio/tests/test_mmap_path.cpp
index 6ad694f..c8376f6 100644
--- a/media/libaaudio/tests/test_mmap_path.cpp
+++ b/media/libaaudio/tests/test_mmap_path.cpp
@@ -40,7 +40,7 @@
  */
 static void openStreamAndVerify(aaudio_direction_t direction) {
     std::vector<AudioMMapPolicyInfo> policyInfos;
-    ASSERT_EQ(android::NO_ERROR, android::AudioSystem::getMmapPolicyInfos(
+    ASSERT_EQ(android::NO_ERROR, android::AudioSystem::getMmapPolicyInfo(
             AudioMMapPolicyType::DEFAULT, &policyInfos));
     if (AAudio_getAAudioPolicy(policyInfos) == AAUDIO_POLICY_NEVER) {
         // Query the system MMAP policy, if it is NEVER, it indicates there is no MMAP support.
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index a467d2c..ee44074 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -2700,13 +2700,13 @@
     return af->setVibratorInfos(vibratorInfos);
 }
 
-status_t AudioSystem::getMmapPolicyInfos(
+status_t AudioSystem::getMmapPolicyInfo(
         AudioMMapPolicyType policyType, std::vector<AudioMMapPolicyInfo> *policyInfos) {
-    const sp<IAudioPolicyService> aps = get_audio_policy_service();
-    if (aps == nullptr) {
+    const sp<IAudioFlinger> af = get_audio_flinger();
+    if (af == nullptr) {
         return PERMISSION_DENIED;
     }
-    return statusTFromBinderStatus(aps->getMmapPolicyInfos(policyType, policyInfos));
+    return af->getMmapPolicyInfos(policyType, policyInfos);
 }
 
 int32_t AudioSystem::getAAudioMixerBurstCount() {
@@ -2803,18 +2803,6 @@
             aps->clearPreferredMixerAttributes(attrAidl, portIdAidl, uidAidl));
 }
 
-status_t AudioSystem::getMmapPolicyForDevice(AudioMMapPolicyType policyType,
-                                             audio_devices_t device,
-                                             AudioMMapPolicyInfo *policyInfo) {
-    const sp<IAudioPolicyService> aps = get_audio_policy_service();
-    if (aps == nullptr) {
-        return PERMISSION_DENIED;
-    }
-    policyInfo->device.type = VALUE_OR_RETURN_STATUS(
-            legacy2aidl_audio_devices_t_AudioDeviceDescription(device));
-    return statusTFromBinderStatus(aps->getMmapPolicyForDevice(policyType, policyInfo));
-}
-
 // ---------------------------------------------------------------------------
 
 int AudioSystem::AudioPolicyServiceClient::addAudioPortCallback(
diff --git a/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl b/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
index f262c2e..b4f879a 100644
--- a/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
+++ b/media/libaudioclient/aidl/android/media/IAudioPolicyService.aidl
@@ -46,8 +46,6 @@
 import android.media.audio.common.AudioDevice;
 import android.media.audio.common.AudioDeviceDescription;
 import android.media.audio.common.AudioFormatDescription;
-import android.media.audio.common.AudioMMapPolicyInfo;
-import android.media.audio.common.AudioMMapPolicyType;
 import android.media.audio.common.AudioMode;
 import android.media.audio.common.AudioPolicyForcedConfig;
 import android.media.audio.common.AudioPolicyForceUse;
@@ -484,17 +482,6 @@
      * required to control audio access.
      */
     INativePermissionController getPermissionController();
-
-    /**
-     * Query mmap policy information.
-     */
-    AudioMMapPolicyInfo[] getMmapPolicyInfos(AudioMMapPolicyType policyType);
-
-    /**
-     * Get all devices that support AAudio MMAP.
-     */
-    void getMmapPolicyForDevice(AudioMMapPolicyType policyType,
-                                inout AudioMMapPolicyInfo policyInfo);
     // When adding a new method, please review and update
     // AudioPolicyService.cpp AudioPolicyService::onTransact()
     // AudioPolicyService.cpp IAUDIOPOLICYSERVICE_BINDER_METHOD_MACRO_LIST
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index d0f3767..40e5673 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -797,7 +797,7 @@
 
     static status_t setVibratorInfos(const std::vector<media::AudioVibratorInfo>& vibratorInfos);
 
-    static status_t getMmapPolicyInfos(
+    static status_t getMmapPolicyInfo(
             media::audio::common::AudioMMapPolicyType policyType,
             std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos);
 
@@ -805,10 +805,6 @@
 
     static int32_t getAAudioHardwareBurstMinUsec();
 
-    static status_t getMmapPolicyForDevice(
-            media::audio::common::AudioMMapPolicyType policyType, audio_devices_t device,
-            media::audio::common::AudioMMapPolicyInfo *policyInfo);
-
     class AudioFlingerClient: public IBinder::DeathRecipient, public media::BnAudioFlingerClient
     {
     public:
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index d0548ef..edcb805 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -19,8 +19,6 @@
 
 #include <android/media/DeviceConnectedState.h>
 #include <android/media/TrackInternalMuteInfo.h>
-#include <android/media/audio/common/AudioMMapPolicyInfo.h>
-#include <android/media/audio/common/AudioMMapPolicyType.h>
 #include <media/AudioCommonTypes.h>
 #include <media/AudioContainers.h>
 #include <media/AudioDeviceTypeAddr.h>
@@ -446,13 +444,6 @@
     virtual status_t clearPreferredMixerAttributes(const audio_attributes_t* attr,
                                                    audio_port_handle_t portId,
                                                    uid_t uid) = 0;
-
-    virtual status_t getMmapPolicyInfos(
-            media::audio::common::AudioMMapPolicyType policyType,
-            std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos) = 0;
-    virtual status_t getMmapPolicyForDevice(
-            media::audio::common::AudioMMapPolicyType policyType,
-            media::audio::common::AudioMMapPolicyInfo *policyInfo) = 0;
 };
 
 // Audio Policy client Interface
@@ -617,10 +608,6 @@
 
     virtual status_t setTracksInternalMute(
             const std::vector<media::TrackInternalMuteInfo>& tracksInternalMute) = 0;
-
-    virtual status_t getMmapPolicyInfos(
-            media::audio::common::AudioMMapPolicyType policyType,
-            std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos) = 0;
 };
 
     // These are the signatures of createAudioPolicyManager/destroyAudioPolicyManager
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 36809ab..c1c4a28 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -40,7 +40,6 @@
 #include <vector>
 
 #include <Serializer.h>
-#include <android/media/audio/common/AudioMMapPolicy.h>
 #include <android/media/audio/common/AudioPort.h>
 #include <com_android_media_audio.h>
 #include <android_media_audiopolicy.h>
@@ -65,10 +64,6 @@
 
 using android::media::audio::common::AudioDevice;
 using android::media::audio::common::AudioDeviceAddress;
-using android::media::audio::common::AudioDeviceDescription;
-using android::media::audio::common::AudioMMapPolicy;
-using android::media::audio::common::AudioMMapPolicyInfo;
-using android::media::audio::common::AudioMMapPolicyType;
 using android::media::audio::common::AudioPortDeviceExt;
 using android::media::audio::common::AudioPortExt;
 using com::android::media::audioserver::fix_call_audio_patch;
@@ -4712,18 +4707,6 @@
                           dumpDeviceTypes({it.first}).c_str(),
                           mEngine->getVolumeGroupForAttributes(it.second));
     }
-
-    // dump mmap policy by device
-    dst->appendFormat("\nMmap policy:\n");
-    for (const auto& [policyType, policyByDevice] : mMmapPolicyByDeviceType) {
-        std::stringstream ss;
-        ss << '{';
-        for (const auto& [deviceType, policy] : policyByDevice) {
-            ss << deviceType.toString() << ":" << toString(policy) << " ";
-        }
-        ss << '}';
-        dst->appendFormat(" - %s: %s\n", toString(policyType).c_str(), ss.str().c_str());
-    }
 }
 
 status_t AudioPolicyManager::dump(int fd)
@@ -9379,88 +9362,4 @@
     }
 }
 
-status_t AudioPolicyManager::getMmapPolicyInfos(AudioMMapPolicyType policyType,
-                                                std::vector<AudioMMapPolicyInfo> *policyInfos) {
-    if (policyType != AudioMMapPolicyType::DEFAULT &&
-        policyType != AudioMMapPolicyType::EXCLUSIVE) {
-        return BAD_VALUE;
-    }
-    if (mMmapPolicyByDeviceType.count(policyType) == 0) {
-        if (status_t status = updateMmapPolicyInfos(policyType); status != NO_ERROR) {
-            return status;
-        }
-    }
-    *policyInfos = mMmapPolicyInfos[policyType];
-    return NO_ERROR;
-}
-
-status_t AudioPolicyManager::getMmapPolicyForDevice(
-        AudioMMapPolicyType policyType, AudioMMapPolicyInfo *policyInfo) {
-    if (policyType != AudioMMapPolicyType::DEFAULT &&
-        policyType != AudioMMapPolicyType::EXCLUSIVE) {
-        return BAD_VALUE;
-    }
-    if (mMmapPolicyByDeviceType.count(policyType) == 0) {
-        if (status_t status = updateMmapPolicyInfos(policyType); status != NO_ERROR) {
-            return status;
-        }
-    }
-    auto it = mMmapPolicyByDeviceType[policyType].find(policyInfo->device.type);
-    policyInfo->mmapPolicy = it == mMmapPolicyByDeviceType[policyType].end()
-            ? AudioMMapPolicy::NEVER : it->second;
-    return NO_ERROR;
-}
-
-status_t AudioPolicyManager::updateMmapPolicyInfos(AudioMMapPolicyType policyType) {
-    std::vector<AudioMMapPolicyInfo> policyInfos;
-    if (status_t status = mpClientInterface->getMmapPolicyInfos(policyType, &policyInfos);
-        status != NO_ERROR) {
-        ALOGE("%s, failed, error = %d", __func__, status);
-        return status;
-    }
-    std::map<AudioDeviceDescription, AudioMMapPolicy> mmapPolicyByDeviceType;
-    if (policyInfos.size() == 1 && policyInfos[0].device == AudioDevice()) {
-        // When there is only one AudioMMapPolicyInfo instance and the device is a default value,
-        // it indicates the mmap policy is reported via system property. In that case, use the
-        // routing information to fill details for how mmap is supported for a particular device.
-        for (const auto &hwModule: mHwModules) {
-            for (const auto &profile: hwModule->getInputProfiles()) {
-                if ((profile->getFlags() & AUDIO_INPUT_FLAG_MMAP_NOIRQ)
-                    != AUDIO_INPUT_FLAG_MMAP_NOIRQ) {
-                    continue;
-                }
-                for (const auto &device: profile->getSupportedDevices()) {
-                    auto deviceDesc =
-                            legacy2aidl_audio_devices_t_AudioDeviceDescription(device->type());
-                    if (deviceDesc.ok()) {
-                        mmapPolicyByDeviceType.emplace(
-                                deviceDesc.value(), policyInfos[0].mmapPolicy);
-                    }
-                }
-            }
-            for (const auto &profile: hwModule->getOutputProfiles()) {
-                if ((profile->getFlags() & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ)
-                    != AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) {
-                    continue;
-                }
-                for (const auto &device: profile->getSupportedDevices()) {
-                    auto deviceDesc =
-                            legacy2aidl_audio_devices_t_AudioDeviceDescription(device->type());
-                    if (deviceDesc.ok()) {
-                        mmapPolicyByDeviceType.emplace(
-                                deviceDesc.value(), policyInfos[0].mmapPolicy);
-                    }
-                }
-            }
-        }
-    } else {
-        for (const auto &info: policyInfos) {
-            mmapPolicyByDeviceType[info.device.type] = info.mmapPolicy;
-        }
-    }
-    mMmapPolicyByDeviceType.emplace(policyType, mmapPolicyByDeviceType);
-    mMmapPolicyInfos.emplace(policyType, policyInfos);
-    return NO_ERROR;
-}
-
 } // namespace android
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 6c247ba..9ad2ea5 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -436,13 +436,6 @@
 
         void onNewAudioModulesAvailable() override;
 
-        status_t getMmapPolicyInfos(
-                media::audio::common::AudioMMapPolicyType policyType,
-                std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos) override;
-        status_t getMmapPolicyForDevice(
-                media::audio::common::AudioMMapPolicyType policyType,
-                media::audio::common::AudioMMapPolicyInfo *policyInfo) override;
-
         status_t initialize();
 
 protected:
@@ -1415,17 +1408,9 @@
                                                   int index,
                                                   const DeviceTypeSet &deviceTypes);
 
-        status_t updateMmapPolicyInfos(media::audio::common::AudioMMapPolicyType policyType);
-
         // Contains for devices that support absolute volume the audio attributes
         // corresponding to the streams that are driving the volume changes
         std::unordered_map<audio_devices_t, audio_attributes_t> mAbsoluteVolumeDrivingStreams;
-
-        std::map<media::audio::common::AudioMMapPolicyType,
-                const std::vector<media::audio::common::AudioMMapPolicyInfo>> mMmapPolicyInfos;
-        std::map<media::audio::common::AudioMMapPolicyType,
-                const std::map<media::audio::common::AudioDeviceDescription,
-                         media::audio::common::AudioMMapPolicy>> mMmapPolicyByDeviceType;
 };
 
 };
diff --git a/services/audiopolicy/service/AudioPolicyClientImpl.cpp b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
index cb42977..363dfa7 100644
--- a/services/audiopolicy/service/AudioPolicyClientImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
@@ -376,14 +376,4 @@
     return af->setTracksInternalMute(tracksInternalMute);
 }
 
-status_t AudioPolicyService::AudioPolicyClient::getMmapPolicyInfos(
-        media::audio::common::AudioMMapPolicyType policyType,
-        std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos) {
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == nullptr) {
-        return PERMISSION_DENIED;
-    }
-    return af->getMmapPolicyInfos(policyType, policyInfos);
-}
-
 } // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index 2e25fb2..24ab6a1 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -2753,24 +2753,4 @@
     return Status::ok();
 }
 
-Status AudioPolicyService::getMmapPolicyInfos(
-        AudioMMapPolicyType policyType, std::vector<AudioMMapPolicyInfo> *_aidl_return) {
-    if (mAudioPolicyManager == nullptr) {
-        return binderStatusFromStatusT(NO_INIT);
-    }
-    audio_utils::lock_guard _l(mMutex);
-    return binderStatusFromStatusT(
-            mAudioPolicyManager->getMmapPolicyInfos(policyType, _aidl_return));
-}
-
-Status AudioPolicyService::getMmapPolicyForDevice(
-        AudioMMapPolicyType policyType, AudioMMapPolicyInfo *policyInfo) {
-    if (mAudioPolicyManager == nullptr) {
-        return binderStatusFromStatusT(NO_INIT);
-    }
-    audio_utils::lock_guard _l(mMutex);
-    return binderStatusFromStatusT(
-            mAudioPolicyManager->getMmapPolicyForDevice(policyType, policyInfo));
-}
-
 } // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 13ee5cf..7b7275e 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -170,8 +170,6 @@
 BINDER_METHOD_ENTRY(clearPreferredMixerAttributes) \
 BINDER_METHOD_ENTRY(getRegisteredPolicyMixes) \
 BINDER_METHOD_ENTRY(getPermissionController) \
-BINDER_METHOD_ENTRY(getMmapPolicyInfos) \
-BINDER_METHOD_ENTRY(getMmapPolicyForDevice) \
                                                      \
 // singleton for Binder Method Statistics for IAudioPolicyService
 static auto& getIAudioPolicyServiceStatistics() {
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index 2fb221f..c47b5e9 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -58,8 +58,6 @@
 using media::audio::common::AudioDevice;
 using media::audio::common::AudioDeviceDescription;
 using media::audio::common::AudioFormatDescription;
-using media::audio::common::AudioMMapPolicyInfo;
-using media::audio::common::AudioMMapPolicyType;
 using media::audio::common::AudioMode;
 using media::audio::common::AudioSource;
 using media::audio::common::AudioStreamType;
@@ -330,13 +328,6 @@
     // Should only be called by AudioService to push permission data down to audioserver
     binder::Status getPermissionController(sp<INativePermissionController>* out) override;
 
-    binder::Status getMmapPolicyInfos(
-            AudioMMapPolicyType policyType,
-            std::vector<AudioMMapPolicyInfo>* _aidl_return) override;
-    binder::Status getMmapPolicyForDevice(
-            AudioMMapPolicyType policyType,
-            AudioMMapPolicyInfo* policyInfo) override;
-
     status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) override;
 
     // -- IAudioPolicyLocal methods
@@ -947,10 +938,6 @@
         status_t setTracksInternalMute(
                 const std::vector<media::TrackInternalMuteInfo>& tracksInternalMute) override;
 
-        status_t getMmapPolicyInfos(
-                media::audio::common::AudioMMapPolicyType policyType,
-                std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos) override;
-
      private:
         AudioPolicyService *mAudioPolicyService;
     };
diff --git a/services/audiopolicy/tests/AudioPolicyTestClient.h b/services/audiopolicy/tests/AudioPolicyTestClient.h
index 91d85f3..9ddfd6c 100644
--- a/services/audiopolicy/tests/AudioPolicyTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyTestClient.h
@@ -120,12 +120,6 @@
             const std::vector<media::TrackInternalMuteInfo>& /*tracksInternalMute*/) override {
         return INVALID_OPERATION;
     }
-
-    status_t getMmapPolicyInfos(
-            media::audio::common::AudioMMapPolicyType /*policyType*/,
-            std::vector<media::audio::common::AudioMMapPolicyInfo>* /*policyInfos*/) override {
-        return INVALID_OPERATION;
-    }
 };
 
 } // namespace android