Delete unused audio module

Signed-off-by: Joonas Kylmälä <joonas.kylmala@iki.fi>

5 files changed, 0 insertions, 2636 deletions

diff --git a/audio/Android.mk b/audio/Android.mk
deleted file mode 100644
index 7db7659..0000000
--- a/audio/Android.mk
+++ /dev/null
@@ -1,58 +0,0 @@
-#
-# Copyright (C) 2011 The Android Open Source Project
-#
-# 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.
-
-LOCAL_PATH := $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_VENDOR_MODULE := true
-LOCAL_MODULE := audio.primary.i9305
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_SHARED_LIBRARIES := libcutils liblog
-
-LOCAL_SRC_FILES := audio_hw.c
-
-LOCAL_C_INCLUDES += \
-			external/tinyalsa/include \
-
-LOCAL_SHARED_LIBRARIES += \
-			libdl \
-			libtinyalsa
-
-LOCAL_CFLAGS := -Wno-unused-parameter
-LOCAL_HEADER_LIBRARIES := libhardware_headers
-
-include $(BUILD_SHARED_LIBRARY)
-
-include $(CLEAR_VARS)
-
-LOCAL_VENDOR_MODULE := true
-LOCAL_MODULE := audio.primary.i9305_legacy
-LOCAL_MODULE_RELATIVE_PATH := hw
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_SHARED_LIBRARIES := libcutils liblog
-
-LOCAL_SRC_FILES := audio_hw_legacy.c
-
-LOCAL_SHARED_LIBRARIES += \
-			libdl
-
-LOCAL_CFLAGS := -Wno-unused-parameter
-LOCAL_HEADER_LIBRARIES := libhardware_headers
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/audio/MODULE_LICENSE_APACHE2 b/audio/MODULE_LICENSE_APACHE2
deleted file mode 100644
index e69de29..0000000
--- a/audio/MODULE_LICENSE_APACHE2
+++ /dev/null
diff --git a/audio/NOTICE b/audio/NOTICE
deleted file mode 100644
index 3237da6..0000000
--- a/audio/NOTICE
+++ /dev/null
@@ -1,190 +0,0 @@
-
-   Copyright (c) 2008-2009, The Android Open Source Project
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-
-   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.
-
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
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-
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-      editorial revisions, annotations, elaborations, or other modifications
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-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
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-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
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-      on behalf of whom a Contribution has been received by Licensor and
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-      (except as stated in this section) patent license to make, have made,
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-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
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-   4. Redistribution. You may reproduce and distribute copies of the
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-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
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-          of the NOTICE file are for informational purposes only and
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-      any Contribution intentionally submitted for inclusion in the Work
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-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
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diff --git a/audio/audio_hw.c b/audio/audio_hw.c
deleted file mode 100644
index 62a2daa..0000000
--- a/audio/audio_hw.c
+++ /dev/null
@@ -1,1674 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * 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.
- */
-
-#define LOG_TAG "audio_hw_generic"
-
-#include <assert.h>
-#include <errno.h>
-#include <inttypes.h>
-#include <pthread.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <dlfcn.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <log/log.h>
-#include <cutils/str_parms.h>
-
-#include <hardware/hardware.h>
-#include <system/audio.h>
-#include <hardware/audio.h>
-#include <tinyalsa/asoundlib.h>
-
-#define PCM_CARD 0
-#define PCM_DEVICE 0
-
-
-#define OUT_PERIOD_MS 15
-#define OUT_PERIOD_COUNT 4
-
-#define IN_PERIOD_MS 15
-#define IN_PERIOD_COUNT 4
-
-struct generic_audio_device {
-    struct audio_hw_device device; // Constant after init
-    pthread_mutex_t lock;
-    bool mic_mute;                 // Proteced by this->lock
-    struct mixer* mixer;           // Proteced by this->lock
-};
-
-/* If not NULL, this is a pointer to the fallback module.
- * This really is the original default audio device /dev/eac which we will use
- * if no alsa devices are detected.
- */
-static struct audio_module*  sFallback;
-static pthread_once_t sFallbackOnce = PTHREAD_ONCE_INIT;
-static void fallback_init(void);
-static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state);
-static int adev_get_microphones(const audio_hw_device_t *dev,
-                                struct audio_microphone_characteristic_t *mic_array,
-                                size_t *mic_count);
-
-
-typedef struct audio_vbuffer {
-    pthread_mutex_t lock;
-    uint8_t *  data;
-    size_t     frame_size;
-    size_t     frame_count;
-    size_t     head;
-    size_t     tail;
-    size_t     live;
-} audio_vbuffer_t;
-
-static int audio_vbuffer_init (audio_vbuffer_t * audio_vbuffer, size_t frame_count,
-                              size_t frame_size) {
-    if (!audio_vbuffer) {
-        return -EINVAL;
-    }
-    audio_vbuffer->frame_size = frame_size;
-    audio_vbuffer->frame_count = frame_count;
-    size_t bytes = frame_count * frame_size;
-    audio_vbuffer->data = calloc(bytes, 1);
-    if (!audio_vbuffer->data) {
-        return -ENOMEM;
-    }
-    audio_vbuffer->head = 0;
-    audio_vbuffer->tail = 0;
-    audio_vbuffer->live = 0;
-    pthread_mutex_init (&audio_vbuffer->lock, (const pthread_mutexattr_t *) NULL);
-    return 0;
-}
-
-static int audio_vbuffer_destroy (audio_vbuffer_t * audio_vbuffer) {
-    if (!audio_vbuffer) {
-        return -EINVAL;
-    }
-    free(audio_vbuffer->data);
-    pthread_mutex_destroy(&audio_vbuffer->lock);
-    return 0;
-}
-
-static int audio_vbuffer_live (audio_vbuffer_t * audio_vbuffer) {
-    if (!audio_vbuffer) {
-        return -EINVAL;
-    }
-    pthread_mutex_lock (&audio_vbuffer->lock);
-    int live = audio_vbuffer->live;
-    pthread_mutex_unlock (&audio_vbuffer->lock);
-    return live;
-}
-
-#define MIN(a,b) (((a)<(b))?(a):(b))
-static size_t audio_vbuffer_write (audio_vbuffer_t * audio_vbuffer, const void * buffer, size_t frame_count) {
-    size_t frames_written = 0;
-    pthread_mutex_lock (&audio_vbuffer->lock);
-
-    while (frame_count != 0) {
-        int frames = 0;
-        if (audio_vbuffer->live == 0 || audio_vbuffer->head > audio_vbuffer->tail) {
-            frames = MIN(frame_count, audio_vbuffer->frame_count - audio_vbuffer->head);
-        } else if (audio_vbuffer->head < audio_vbuffer->tail) {
-            frames = MIN(frame_count, audio_vbuffer->tail - (audio_vbuffer->head));
-        } else {
-            // Full
-            break;
-        }
-        memcpy(&audio_vbuffer->data[audio_vbuffer->head*audio_vbuffer->frame_size],
-               &((uint8_t*)buffer)[frames_written*audio_vbuffer->frame_size],
-               frames*audio_vbuffer->frame_size);
-        audio_vbuffer->live += frames;
-        frames_written += frames;
-        frame_count -= frames;
-        audio_vbuffer->head = (audio_vbuffer->head + frames) % audio_vbuffer->frame_count;
-    }
-
-    pthread_mutex_unlock (&audio_vbuffer->lock);
-    return frames_written;
-}
-
-static size_t audio_vbuffer_read (audio_vbuffer_t * audio_vbuffer, void * buffer, size_t frame_count) {
-    size_t frames_read = 0;
-    pthread_mutex_lock (&audio_vbuffer->lock);
-
-    while (frame_count != 0) {
-        int frames = 0;
-        if (audio_vbuffer->live == audio_vbuffer->frame_count ||
-            audio_vbuffer->tail > audio_vbuffer->head) {
-            frames = MIN(frame_count, audio_vbuffer->frame_count - audio_vbuffer->tail);
-        } else if (audio_vbuffer->tail < audio_vbuffer->head) {
-            frames = MIN(frame_count, audio_vbuffer->head - audio_vbuffer->tail);
-        } else {
-            break;
-        }
-        memcpy(&((uint8_t*)buffer)[frames_read*audio_vbuffer->frame_size],
-               &audio_vbuffer->data[audio_vbuffer->tail*audio_vbuffer->frame_size],
-               frames*audio_vbuffer->frame_size);
-        audio_vbuffer->live -= frames;
-        frames_read += frames;
-        frame_count -= frames;
-        audio_vbuffer->tail = (audio_vbuffer->tail + frames) % audio_vbuffer->frame_count;
-    }
-
-    pthread_mutex_unlock (&audio_vbuffer->lock);
-    return frames_read;
-}
-
-struct generic_stream_out {
-    struct audio_stream_out stream;   // Constant after init
-    pthread_mutex_t lock;
-    struct generic_audio_device *dev; // Constant after init
-    audio_devices_t device;           // Protected by this->lock
-    struct audio_config req_config;   // Constant after init
-    struct pcm_config pcm_config;     // Constant after init
-    audio_vbuffer_t buffer;           // Constant after init
-
-    // Time & Position Keeping
-    bool standby;                      // Protected by this->lock
-    uint64_t underrun_position;        // Protected by this->lock
-    struct timespec underrun_time;     // Protected by this->lock
-    uint64_t last_write_time_us;       // Protected by this->lock
-    uint64_t frames_total_buffered;    // Protected by this->lock
-    uint64_t frames_written;           // Protected by this->lock
-    uint64_t frames_rendered;          // Protected by this->lock
-
-    // Worker
-    pthread_t worker_thread;          // Constant after init
-    pthread_cond_t worker_wake;       // Protected by this->lock
-    bool worker_standby;              // Protected by this->lock
-    bool worker_exit;                 // Protected by this->lock
-};
-
-struct generic_stream_in {
-    struct audio_stream_in stream;    // Constant after init
-    pthread_mutex_t lock;
-    struct generic_audio_device *dev; // Constant after init
-    audio_devices_t device;           // Protected by this->lock
-    struct audio_config req_config;   // Constant after init
-    struct pcm *pcm;                  // Protected by this->lock
-    struct pcm_config pcm_config;     // Constant after init
-    int16_t *stereo_to_mono_buf;      // Protected by this->lock
-    size_t stereo_to_mono_buf_size;   // Protected by this->lock
-    audio_vbuffer_t buffer;           // Protected by this->lock
-
-    // Time & Position Keeping
-    bool standby;                     // Protected by this->lock
-    int64_t standby_position;         // Protected by this->lock
-    struct timespec standby_exit_time;// Protected by this->lock
-    int64_t standby_frames_read;      // Protected by this->lock
-
-    // Worker
-    pthread_t worker_thread;          // Constant after init
-    pthread_cond_t worker_wake;       // Protected by this->lock
-    bool worker_standby;              // Protected by this->lock
-    bool worker_exit;                 // Protected by this->lock
-};
-
-static struct pcm_config pcm_config_out = {
-    .channels = 2,
-    .rate = 0,
-    .period_size = 0,
-    .period_count = OUT_PERIOD_COUNT,
-    .format = PCM_FORMAT_S16_LE,
-    .start_threshold = 0,
-};
-
-static struct pcm_config pcm_config_in = {
-    .channels = 2,
-    .rate = 0,
-    .period_size = 0,
-    .period_count = IN_PERIOD_COUNT,
-    .format = PCM_FORMAT_S16_LE,
-    .start_threshold = 0,
-    .stop_threshold = INT_MAX,
-};
-
-static pthread_mutex_t adev_init_lock = PTHREAD_MUTEX_INITIALIZER;
-static unsigned int audio_device_ref_count = 0;
-
-static uint32_t out_get_sample_rate(const struct audio_stream *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    return out->req_config.sample_rate;
-}
-
-static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
-{
-    return -ENOSYS;
-}
-
-static size_t out_get_buffer_size(const struct audio_stream *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    int size = out->pcm_config.period_size *
-                audio_stream_out_frame_size(&out->stream);
-
-    return size;
-}
-
-static audio_channel_mask_t out_get_channels(const struct audio_stream *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    return out->req_config.channel_mask;
-}
-
-static audio_format_t out_get_format(const struct audio_stream *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-
-    return out->req_config.format;
-}
-
-static int out_set_format(struct audio_stream *stream, audio_format_t format)
-{
-    return -ENOSYS;
-}
-
-static int out_dump(const struct audio_stream *stream, int fd)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    pthread_mutex_lock(&out->lock);
-    dprintf(fd, "\tout_dump:\n"
-                "\t\tsample rate: %u\n"
-                "\t\tbuffer size: %zu\n"
-                "\t\tchannel mask: %08x\n"
-                "\t\tformat: %d\n"
-                "\t\tdevice: %08x\n"
-                "\t\taudio dev: %p\n\n",
-                out_get_sample_rate(stream),
-                out_get_buffer_size(stream),
-                out_get_channels(stream),
-                out_get_format(stream),
-                out->device,
-                out->dev);
-    pthread_mutex_unlock(&out->lock);
-    return 0;
-}
-
-static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    struct str_parms *parms;
-    char value[32];
-    int ret = -ENOSYS;
-    int success;
-    long val;
-    char *end;
-
-    if (kvpairs == NULL || kvpairs[0] == 0) {
-        return 0;
-    }
-    pthread_mutex_lock(&out->lock);
-    if (out->standby) {
-        parms = str_parms_create_str(kvpairs);
-        success = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING,
-                                value, sizeof(value));
-        if (success >= 0) {
-            errno = 0;
-            val = strtol(value, &end, 10);
-            if (errno == 0 && (end != NULL) && (*end == '\0') && ((int)val == val)) {
-                out->device = (int)val;
-                ret = 0;
-            }
-        }
-
-        // NO op for AUDIO_PARAMETER_DEVICE_CONNECT and AUDIO_PARAMETER_DEVICE_DISCONNECT
-        success = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_CONNECT,
-                                value, sizeof(value));
-        if (success >= 0) {
-            ret = 0;
-        }
-        success = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_DISCONNECT,
-                                value, sizeof(value));
-        if (success >= 0) {
-            ret = 0;
-        }
-
-        if (ret != 0) {
-            ALOGD("%s Unsupported parameter %s", __FUNCTION__, kvpairs);
-        }
-
-        str_parms_destroy(parms);
-    }
-    pthread_mutex_unlock(&out->lock);
-    return ret;
-}
-
-static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    struct str_parms *query = str_parms_create_str(keys);
-    char *str = NULL;
-    char value[256];
-    struct str_parms *reply = str_parms_create();
-    int ret;
-    bool get = false;
-
-    ret = str_parms_get_str(query, AUDIO_PARAMETER_STREAM_ROUTING, value, sizeof(value));
-    if (ret >= 0) {
-        pthread_mutex_lock(&out->lock);
-        str_parms_add_int(reply, AUDIO_PARAMETER_STREAM_ROUTING, out->device);
-        pthread_mutex_unlock(&out->lock);
-        get = true;
-    }
-
-    if (str_parms_has_key(query, AUDIO_PARAMETER_STREAM_SUP_FORMATS)) {
-        value[0] = 0;
-        strcat(value, "AUDIO_FORMAT_PCM_16_BIT");
-        str_parms_add_str(reply, AUDIO_PARAMETER_STREAM_SUP_FORMATS, value);
-        get = true;
-    }
-
-    if (str_parms_has_key(query, AUDIO_PARAMETER_STREAM_FORMAT)) {
-        value[0] = 0;
-        strcat(value, "AUDIO_FORMAT_PCM_16_BIT");
-        str_parms_add_str(reply, AUDIO_PARAMETER_STREAM_FORMAT, value);
-        get = true;
-    }
-
-    if (get) {
-        str = strdup(str_parms_to_str(reply));
-    }
-    else {
-        ALOGD("%s Unsupported paramter: %s", __FUNCTION__, keys);
-    }
-
-    str_parms_destroy(query);
-    str_parms_destroy(reply);
-    return str;
-}
-
-static uint32_t out_get_latency(const struct audio_stream_out *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    return (out->pcm_config.period_size * 1000) / out->pcm_config.rate;
-}
-
-static int out_set_volume(struct audio_stream_out *stream, float left,
-                          float right)
-{
-    return -ENOSYS;
-}
-
-static void *out_write_worker(void * args)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)args;
-    struct pcm *pcm = NULL;
-    uint8_t *buffer = NULL;
-    int buffer_frames;
-    int buffer_size;
-    bool restart = false;
-    bool shutdown = false;
-    while (true) {
-        pthread_mutex_lock(&out->lock);
-        while (out->worker_standby || restart) {
-            restart = false;
-            if (pcm) {
-                pcm_close(pcm); // Frees pcm
-                pcm = NULL;
-                free(buffer);
-                buffer=NULL;
-            }
-            if (out->worker_exit) {
-                break;
-            }
-            pthread_cond_wait(&out->worker_wake, &out->lock);
-        }
-
-        if (out->worker_exit) {
-            if (!out->worker_standby) {
-                ALOGE("Out worker not in standby before exiting");
-            }
-            shutdown = true;
-        }
-
-        while (!shutdown && audio_vbuffer_live(&out->buffer) == 0) {
-            pthread_cond_wait(&out->worker_wake, &out->lock);
-        }
-
-        if (shutdown) {
-            pthread_mutex_unlock(&out->lock);
-            break;
-        }
-
-        if (!pcm) {
-            pcm = pcm_open(PCM_CARD, PCM_DEVICE,
-                          PCM_OUT | PCM_MONOTONIC, &out->pcm_config);
-            if (!pcm_is_ready(pcm)) {
-                ALOGE("pcm_open(out) failed: %s: channels %d format %d rate %d",
-                  pcm_get_error(pcm),
-                  out->pcm_config.channels,
-                  out->pcm_config.format,
-                  out->pcm_config.rate
-                   );
-                pthread_mutex_unlock(&out->lock);
-                break;
-            }
-            buffer_frames = out->pcm_config.period_size;
-            buffer_size = pcm_frames_to_bytes(pcm, buffer_frames);
-            buffer = malloc(buffer_size);
-            if (!buffer) {
-                ALOGE("could not allocate write buffer");
-                pthread_mutex_unlock(&out->lock);
-                break;
-            }
-        }
-        int frames = audio_vbuffer_read(&out->buffer, buffer, buffer_frames);
-        pthread_mutex_unlock(&out->lock);
-        int ret = pcm_write(pcm, buffer, pcm_frames_to_bytes(pcm, frames));
-        if (ret != 0) {
-            ALOGE("pcm_write failed %s", pcm_get_error(pcm));
-            restart = true;
-        }
-    }
-    if (buffer) {
-        free(buffer);
-    }
-
-    return NULL;
-}
-
-// Call with in->lock held
-static void get_current_output_position(struct generic_stream_out *out,
-                                       uint64_t * position,
-                                       struct timespec * timestamp) {
-    struct timespec curtime = { .tv_sec = 0, .tv_nsec = 0 };
-    clock_gettime(CLOCK_MONOTONIC, &curtime);
-    const int64_t now_us = (curtime.tv_sec * 1000000000LL + curtime.tv_nsec) / 1000;
-    if (timestamp) {
-        *timestamp = curtime;
-    }
-    int64_t position_since_underrun;
-    if (out->standby) {
-        position_since_underrun = 0;
-    } else {
-        const int64_t first_us = (out->underrun_time.tv_sec * 1000000000LL +
-                                  out->underrun_time.tv_nsec) / 1000;
-        position_since_underrun = (now_us - first_us) *
-                out_get_sample_rate(&out->stream.common) /
-                1000000;
-        if (position_since_underrun < 0) {
-            position_since_underrun = 0;
-        }
-    }
-    *position = out->underrun_position + position_since_underrun;
-
-    // The device will reuse the same output stream leading to periods of
-    // underrun.
-    if (*position > out->frames_written) {
-        ALOGW("Not supplying enough data to HAL, expected position %" PRIu64 " , only wrote "
-              "%" PRIu64,
-              *position, out->frames_written);
-
-        *position = out->frames_written;
-        out->underrun_position = *position;
-        out->underrun_time = curtime;
-        out->frames_total_buffered = 0;
-    }
-}
-
-
-static ssize_t out_write(struct audio_stream_out *stream, const void *buffer,
-                         size_t bytes)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    const size_t frames =  bytes / audio_stream_out_frame_size(stream);
-
-    pthread_mutex_lock(&out->lock);
-
-    if (out->worker_standby) {
-        out->worker_standby = false;
-    }
-
-    uint64_t current_position;
-    struct timespec current_time;
-
-    get_current_output_position(out, &current_position, &current_time);
-    const uint64_t now_us = (current_time.tv_sec * 1000000000LL +
-                             current_time.tv_nsec) / 1000;
-    if (out->standby) {
-        out->standby = false;
-        out->underrun_time = current_time;
-        out->frames_rendered = 0;
-        out->frames_total_buffered = 0;
-    }
-
-    size_t frames_written = audio_vbuffer_write(&out->buffer, buffer, frames);
-    pthread_cond_signal(&out->worker_wake);
-
-    /* Implementation just consumes bytes if we start getting backed up */
-    out->frames_written += frames;
-    out->frames_rendered += frames;
-    out->frames_total_buffered += frames;
-
-    // We simulate the audio device blocking when it's write buffers become
-    // full.
-
-    // At the beginning or after an underrun, try to fill up the vbuffer.
-    // This will be throttled by the PlaybackThread
-    int frames_sleep = out->frames_total_buffered < out->buffer.frame_count ? 0 : frames;
-
-    uint64_t sleep_time_us = frames_sleep * 1000000LL /
-                            out_get_sample_rate(&stream->common);
-
-    // If the write calls are delayed, subtract time off of the sleep to
-    // compensate
-    uint64_t time_since_last_write_us = now_us - out->last_write_time_us;
-    if (time_since_last_write_us < sleep_time_us) {
-        sleep_time_us -= time_since_last_write_us;
-    } else {
-        sleep_time_us = 0;
-    }
-    out->last_write_time_us = now_us + sleep_time_us;
-
-    pthread_mutex_unlock(&out->lock);
-
-    if (sleep_time_us > 0) {
-        usleep(sleep_time_us);
-    }
-
-    if (frames_written < frames) {
-        ALOGW("Hardware backing HAL too slow, could only write %zu of %zu frames", frames_written, frames);
-    }
-
-    /* Always consume all bytes */
-    return bytes;
-}
-
-static int out_get_presentation_position(const struct audio_stream_out *stream,
-                                   uint64_t *frames, struct timespec *timestamp)
-
-{
-    if (stream == NULL || frames == NULL || timestamp == NULL) {
-        return -EINVAL;
-    }
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-
-    pthread_mutex_lock(&out->lock);
-    get_current_output_position(out, frames, timestamp);
-    pthread_mutex_unlock(&out->lock);
-
-    return 0;
-}
-
-static int out_get_render_position(const struct audio_stream_out *stream,
-                                   uint32_t *dsp_frames)
-{
-    if (stream == NULL || dsp_frames == NULL) {
-        return -EINVAL;
-    }
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    pthread_mutex_lock(&out->lock);
-    *dsp_frames = out->frames_rendered;
-    pthread_mutex_unlock(&out->lock);
-    return 0;
-}
-
-// Must be called with out->lock held
-static void do_out_standby(struct generic_stream_out *out)
-{
-    int frames_sleep = 0;
-    uint64_t sleep_time_us = 0;
-    if (out->standby) {
-        return;
-    }
-    while (true) {
-        get_current_output_position(out, &out->underrun_position, NULL);
-        frames_sleep = out->frames_written - out->underrun_position;
-
-        if (frames_sleep == 0) {
-            break;
-        }
-
-        sleep_time_us = frames_sleep * 1000000LL /
-                        out_get_sample_rate(&out->stream.common);
-
-        pthread_mutex_unlock(&out->lock);
-        usleep(sleep_time_us);
-        pthread_mutex_lock(&out->lock);
-    }
-    out->worker_standby = true;
-    out->standby = true;
-}
-
-static int out_standby(struct audio_stream *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    pthread_mutex_lock(&out->lock);
-    do_out_standby(out);
-    pthread_mutex_unlock(&out->lock);
-    return 0;
-}
-
-static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // out_add_audio_effect is a no op
-    return 0;
-}
-
-static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // out_remove_audio_effect is a no op
-    return 0;
-}
-
-static int out_get_next_write_timestamp(const struct audio_stream_out *stream,
-                                        int64_t *timestamp)
-{
-    return -ENOSYS;
-}
-
-static uint32_t in_get_sample_rate(const struct audio_stream *stream)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    return in->req_config.sample_rate;
-}
-
-static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
-{
-    return -ENOSYS;
-}
-
-static int refine_output_parameters(uint32_t *sample_rate, audio_format_t *format, audio_channel_mask_t *channel_mask)
-{
-    static const uint32_t sample_rates [] = {8000,11025,16000,22050,24000,32000,
-                                            44100,48000};
-    static const int sample_rates_count = sizeof(sample_rates)/sizeof(uint32_t);
-    bool inval = false;
-    if (*format != AUDIO_FORMAT_PCM_16_BIT) {
-        *format = AUDIO_FORMAT_PCM_16_BIT;
-        inval = true;
-    }
-
-    int channel_count = popcount(*channel_mask);
-    if (channel_count != 1 && channel_count != 2) {
-        *channel_mask = AUDIO_CHANNEL_IN_STEREO;
-        inval = true;
-    }
-
-    int i;
-    for (i = 0; i < sample_rates_count; i++) {
-        if (*sample_rate < sample_rates[i]) {
-            *sample_rate = sample_rates[i];
-            inval=true;
-            break;
-        }
-        else if (*sample_rate == sample_rates[i]) {
-            break;
-        }
-        else if (i == sample_rates_count-1) {
-            // Cap it to the highest rate we support
-            *sample_rate = sample_rates[i];
-            inval=true;
-        }
-    }
-
-    if (inval) {
-        return -EINVAL;
-    }
-    return 0;
-}
-
-static int refine_input_parameters(uint32_t *sample_rate, audio_format_t *format, audio_channel_mask_t *channel_mask)
-{
-    static const uint32_t sample_rates [] = {8000, 11025, 16000, 22050, 44100, 48000};
-    static const int sample_rates_count = sizeof(sample_rates)/sizeof(uint32_t);
-    bool inval = false;
-    // Only PCM_16_bit is supported. If this is changed, stereo to mono drop
-    // must be fixed in in_read
-    if (*format != AUDIO_FORMAT_PCM_16_BIT) {
-        *format = AUDIO_FORMAT_PCM_16_BIT;
-        inval = true;
-    }
-
-    int channel_count = popcount(*channel_mask);
-    if (channel_count != 1 && channel_count != 2) {
-        *channel_mask = AUDIO_CHANNEL_IN_STEREO;
-        inval = true;
-    }
-
-    int i;
-    for (i = 0; i < sample_rates_count; i++) {
-        if (*sample_rate < sample_rates[i]) {
-            *sample_rate = sample_rates[i];
-            inval=true;
-            break;
-        }
-        else if (*sample_rate == sample_rates[i]) {
-            break;
-        }
-        else if (i == sample_rates_count-1) {
-            // Cap it to the highest rate we support
-            *sample_rate = sample_rates[i];
-            inval=true;
-        }
-    }
-
-    if (inval) {
-        return -EINVAL;
-    }
-    return 0;
-}
-
-static int check_input_parameters(uint32_t sample_rate, audio_format_t format,
-                                  audio_channel_mask_t channel_mask)
-{
-    return refine_input_parameters(&sample_rate, &format, &channel_mask);
-}
-
-static size_t get_input_buffer_size(uint32_t sample_rate, audio_format_t format,
-                                    audio_channel_mask_t channel_mask)
-{
-    size_t size;
-    int channel_count = popcount(channel_mask);
-    if (check_input_parameters(sample_rate, format, channel_mask) != 0)
-        return 0;
-
-    size = sample_rate*IN_PERIOD_MS/1000;
-    // Audioflinger expects audio buffers to be multiple of 16 frames
-    size = ((size + 15) / 16) * 16;
-    size *= sizeof(short) * channel_count;
-
-    return size;
-}
-
-
-static size_t in_get_buffer_size(const struct audio_stream *stream)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    int size = get_input_buffer_size(in->req_config.sample_rate,
-                                 in->req_config.format,
-                                 in->req_config.channel_mask);
-
-    return size;
-}
-
-static audio_channel_mask_t in_get_channels(const struct audio_stream *stream)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    return in->req_config.channel_mask;
-}
-
-static audio_format_t in_get_format(const struct audio_stream *stream)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    return in->req_config.format;
-}
-
-static int in_set_format(struct audio_stream *stream, audio_format_t format)
-{
-    return -ENOSYS;
-}
-
-static int in_dump(const struct audio_stream *stream, int fd)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-
-    pthread_mutex_lock(&in->lock);
-    dprintf(fd, "\tin_dump:\n"
-                "\t\tsample rate: %u\n"
-                "\t\tbuffer size: %zu\n"
-                "\t\tchannel mask: %08x\n"
-                "\t\tformat: %d\n"
-                "\t\tdevice: %08x\n"
-                "\t\taudio dev: %p\n\n",
-                in_get_sample_rate(stream),
-                in_get_buffer_size(stream),
-                in_get_channels(stream),
-                in_get_format(stream),
-                in->device,
-                in->dev);
-    pthread_mutex_unlock(&in->lock);
-    return 0;
-}
-
-static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    struct str_parms *parms;
-    char value[32];
-    int ret = -ENOSYS;
-    int success;
-    long val;
-    char *end;
-
-    if (kvpairs == NULL || kvpairs[0] == 0) {
-        return 0;
-    }
-    pthread_mutex_lock(&in->lock);
-    if (in->standby) {
-        parms = str_parms_create_str(kvpairs);
-
-        success = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING,
-                                value, sizeof(value));
-        if (success >= 0) {
-            errno = 0;
-            val = strtol(value, &end, 10);
-            if ((errno == 0) && (end != NULL) && (*end == '\0') && ((int)val == val)) {
-                in->device = (int)val;
-                ret = 0;
-            }
-        }
-        // NO op for AUDIO_PARAMETER_DEVICE_CONNECT and AUDIO_PARAMETER_DEVICE_DISCONNECT
-        success = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_CONNECT,
-                                value, sizeof(value));
-        if (success >= 0) {
-            ret = 0;
-        }
-        success = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_DISCONNECT,
-                                value, sizeof(value));
-        if (success >= 0) {
-            ret = 0;
-        }
-
-        if (ret != 0) {
-            ALOGD("%s: Unsupported parameter %s", __FUNCTION__, kvpairs);
-        }
-
-        str_parms_destroy(parms);
-    }
-    pthread_mutex_unlock(&in->lock);
-    return ret;
-}
-
-static char * in_get_parameters(const struct audio_stream *stream,
-                                const char *keys)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    struct str_parms *query = str_parms_create_str(keys);
-    char *str = NULL;
-    char value[256];
-    struct str_parms *reply = str_parms_create();
-    int ret;
-    bool get = false;
-
-    ret = str_parms_get_str(query, AUDIO_PARAMETER_STREAM_ROUTING, value, sizeof(value));
-    if (ret >= 0) {
-        str_parms_add_int(reply, AUDIO_PARAMETER_STREAM_ROUTING, in->device);
-        get = true;
-    }
-
-    if (str_parms_has_key(query, AUDIO_PARAMETER_STREAM_SUP_FORMATS)) {
-        value[0] = 0;
-        strcat(value, "AUDIO_FORMAT_PCM_16_BIT");
-        str_parms_add_str(reply, AUDIO_PARAMETER_STREAM_SUP_FORMATS, value);
-        get = true;
-    }
-
-    if (str_parms_has_key(query, AUDIO_PARAMETER_STREAM_FORMAT)) {
-        value[0] = 0;
-        strcat(value, "AUDIO_FORMAT_PCM_16_BIT");
-        str_parms_add_str(reply, AUDIO_PARAMETER_STREAM_FORMAT, value);
-        get = true;
-    }
-
-    if (get) {
-        str = strdup(str_parms_to_str(reply));
-    }
-    else {
-        ALOGD("%s Unsupported paramter: %s", __FUNCTION__, keys);
-    }
-
-    str_parms_destroy(query);
-    str_parms_destroy(reply);
-    return str;
-}
-
-static int in_set_gain(struct audio_stream_in *stream, float gain)
-{
-    // in_set_gain is a no op
-    return 0;
-}
-
-// Call with in->lock held
-static void get_current_input_position(struct generic_stream_in *in,
-                                       int64_t * position,
-                                       struct timespec * timestamp) {
-    struct timespec t = { .tv_sec = 0, .tv_nsec = 0 };
-    clock_gettime(CLOCK_MONOTONIC, &t);
-    const int64_t now_us = (t.tv_sec * 1000000000LL + t.tv_nsec) / 1000;
-    if (timestamp) {
-        *timestamp = t;
-    }
-    int64_t position_since_standby;
-    if (in->standby) {
-        position_since_standby = 0;
-    } else {
-        const int64_t first_us = (in->standby_exit_time.tv_sec * 1000000000LL +
-                                  in->standby_exit_time.tv_nsec) / 1000;
-        position_since_standby = (now_us - first_us) *
-                in_get_sample_rate(&in->stream.common) /
-                1000000;
-        if (position_since_standby < 0) {
-            position_since_standby = 0;
-        }
-    }
-    *position = in->standby_position + position_since_standby;
-}
-
-// Must be called with in->lock held
-static void do_in_standby(struct generic_stream_in *in)
-{
-    if (in->standby) {
-        return;
-    }
-    in->worker_standby = true;
-    get_current_input_position(in, &in->standby_position, NULL);
-    in->standby = true;
-}
-
-static int in_standby(struct audio_stream *stream)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    pthread_mutex_lock(&in->lock);
-    do_in_standby(in);
-    pthread_mutex_unlock(&in->lock);
-    return 0;
-}
-
-static void *in_read_worker(void * args)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)args;
-    struct pcm *pcm = NULL;
-    uint8_t *buffer = NULL;
-    size_t buffer_frames;
-    int buffer_size;
-
-    bool restart = false;
-    bool shutdown = false;
-    while (true) {
-        pthread_mutex_lock(&in->lock);
-        while (in->worker_standby || restart) {
-            restart = false;
-            if (pcm) {
-                pcm_close(pcm); // Frees pcm
-                pcm = NULL;
-                free(buffer);
-                buffer=NULL;
-            }
-            if (in->worker_exit) {
-                break;
-            }
-            pthread_cond_wait(&in->worker_wake, &in->lock);
-        }
-
-        if (in->worker_exit) {
-            if (!in->worker_standby) {
-                ALOGE("In worker not in standby before exiting");
-            }
-            shutdown = true;
-        }
-        if (shutdown) {
-            pthread_mutex_unlock(&in->lock);
-            break;
-        }
-        if (!pcm) {
-            pcm = pcm_open(PCM_CARD, PCM_DEVICE,
-                          PCM_IN | PCM_MONOTONIC, &in->pcm_config);
-            if (!pcm_is_ready(pcm)) {
-                ALOGE("pcm_open(in) failed: %s: channels %d format %d rate %d",
-                  pcm_get_error(pcm),
-                  in->pcm_config.channels,
-                  in->pcm_config.format,
-                  in->pcm_config.rate
-                   );
-                pthread_mutex_unlock(&in->lock);
-                break;
-            }
-            buffer_frames = in->pcm_config.period_size;
-            buffer_size = pcm_frames_to_bytes(pcm, buffer_frames);
-            buffer = malloc(buffer_size);
-            if (!buffer) {
-                ALOGE("could not allocate worker read buffer");
-                pthread_mutex_unlock(&in->lock);
-                break;
-            }
-        }
-        pthread_mutex_unlock(&in->lock);
-        int ret = pcm_read(pcm, buffer, pcm_frames_to_bytes(pcm, buffer_frames));
-        if (ret != 0) {
-            ALOGW("pcm_read failed %s", pcm_get_error(pcm));
-            restart = true;
-            continue;
-        }
-
-        pthread_mutex_lock(&in->lock);
-        size_t frames_written = audio_vbuffer_write(&in->buffer, buffer, buffer_frames);
-        pthread_mutex_unlock(&in->lock);
-
-        if (frames_written != buffer_frames) {
-            ALOGW("in_read_worker only could write %zu / %zu frames", frames_written, buffer_frames);
-        }
-    }
-    if (buffer) {
-        free(buffer);
-    }
-    return NULL;
-}
-
-static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
-                       size_t bytes)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    struct generic_audio_device *adev = in->dev;
-    const size_t frames =  bytes / audio_stream_in_frame_size(stream);
-    bool mic_mute = false;
-    size_t read_bytes = 0;
-
-    adev_get_mic_mute(&adev->device, &mic_mute);
-    pthread_mutex_lock(&in->lock);
-
-    if (in->worker_standby) {
-        in->worker_standby = false;
-    }
-    pthread_cond_signal(&in->worker_wake);
-
-    int64_t current_position;
-    struct timespec current_time;
-
-    get_current_input_position(in, &current_position, &current_time);
-    if (in->standby) {
-        in->standby = false;
-        in->standby_exit_time = current_time;
-        in->standby_frames_read = 0;
-    }
-
-    const int64_t frames_available = current_position - in->standby_position - in->standby_frames_read;
-    assert(frames_available >= 0);
-
-    const size_t frames_wait = ((uint64_t)frames_available > frames) ? 0 : frames - frames_available;
-
-    int64_t sleep_time_us  = frames_wait * 1000000LL /
-                             in_get_sample_rate(&stream->common);
-
-    pthread_mutex_unlock(&in->lock);
-
-    if (sleep_time_us > 0) {
-        usleep(sleep_time_us);
-    }
-
-    pthread_mutex_lock(&in->lock);
-    int read_frames = 0;
-    if (in->standby) {
-        ALOGW("Input put to sleep while read in progress");
-        goto exit;
-    }
-    in->standby_frames_read += frames;
-
-    if (popcount(in->req_config.channel_mask) == 1 &&
-        in->pcm_config.channels == 2) {
-        // Need to resample to mono
-        if (in->stereo_to_mono_buf_size < bytes*2) {
-            in->stereo_to_mono_buf = realloc(in->stereo_to_mono_buf,
-                                             bytes*2);
-            if (!in->stereo_to_mono_buf) {
-                ALOGE("Failed to allocate stereo_to_mono_buff");
-                goto exit;
-            }
-        }
-
-        read_frames = audio_vbuffer_read(&in->buffer, in->stereo_to_mono_buf, frames);
-
-        // Currently only pcm 16 is supported.
-        uint16_t *src = (uint16_t *)in->stereo_to_mono_buf;
-        uint16_t *dst = (uint16_t *)buffer;
-        size_t i;
-        // Resample stereo 16 to mono 16 by dropping one channel.
-        // The stereo stream is interleaved L-R-L-R
-        for (i = 0; i < frames; i++) {
-            *dst = *src;
-            src += 2;
-            dst += 1;
-        }
-    } else {
-        read_frames = audio_vbuffer_read(&in->buffer, buffer, frames);
-    }
-
-exit:
-    read_bytes = read_frames*audio_stream_in_frame_size(stream);
-
-    if (mic_mute) {
-        read_bytes = 0;
-    }
-
-    if (read_bytes < bytes) {
-        memset (&((uint8_t *)buffer)[read_bytes], 0, bytes-read_bytes);
-    }
-
-    pthread_mutex_unlock(&in->lock);
-
-    return bytes;
-}
-
-static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
-{
-    return 0;
-}
-
-static int in_get_capture_position(const struct audio_stream_in *stream,
-                                int64_t *frames, int64_t *time)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    pthread_mutex_lock(&in->lock);
-    struct timespec current_time;
-    get_current_input_position(in, frames, &current_time);
-    *time = (current_time.tv_sec * 1000000000LL + current_time.tv_nsec);
-    pthread_mutex_unlock(&in->lock);
-    return 0;
-}
-
-static int in_get_active_microphones(const struct audio_stream_in *stream,
-                                     struct audio_microphone_characteristic_t *mic_array,
-                                     size_t *mic_count)
-{
-    return adev_get_microphones(NULL, mic_array, mic_count);
-}
-
-static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // in_add_audio_effect is a no op
-    return 0;
-}
-
-static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // in_add_audio_effect is a no op
-    return 0;
-}
-
-static int adev_open_output_stream(struct audio_hw_device *dev,
-                                   audio_io_handle_t handle,
-                                   audio_devices_t devices,
-                                   audio_output_flags_t flags,
-                                   struct audio_config *config,
-                                   struct audio_stream_out **stream_out,
-                                   const char *address __unused)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-    struct generic_stream_out *out;
-    int ret = 0;
-
-    if (refine_output_parameters(&config->sample_rate, &config->format, &config->channel_mask)) {
-        ALOGE("Error opening output stream format %d, channel_mask %04x, sample_rate %u",
-              config->format, config->channel_mask, config->sample_rate);
-        ret = -EINVAL;
-        goto error;
-    }
-
-    out = (struct generic_stream_out *)calloc(1, sizeof(struct generic_stream_out));
-
-    if (!out)
-        return -ENOMEM;
-
-    out->stream.common.get_sample_rate = out_get_sample_rate;
-    out->stream.common.set_sample_rate = out_set_sample_rate;
-    out->stream.common.get_buffer_size = out_get_buffer_size;
-    out->stream.common.get_channels = out_get_channels;
-    out->stream.common.get_format = out_get_format;
-    out->stream.common.set_format = out_set_format;
-    out->stream.common.standby = out_standby;
-    out->stream.common.dump = out_dump;
-    out->stream.common.set_parameters = out_set_parameters;
-    out->stream.common.get_parameters = out_get_parameters;
-    out->stream.common.add_audio_effect = out_add_audio_effect;
-    out->stream.common.remove_audio_effect = out_remove_audio_effect;
-    out->stream.get_latency = out_get_latency;
-    out->stream.set_volume = out_set_volume;
-    out->stream.write = out_write;
-    out->stream.get_render_position = out_get_render_position;
-    out->stream.get_presentation_position = out_get_presentation_position;
-    out->stream.get_next_write_timestamp = out_get_next_write_timestamp;
-
-    pthread_mutex_init(&out->lock, (const pthread_mutexattr_t *) NULL);
-    out->dev = adev;
-    out->device = devices;
-    memcpy(&out->req_config, config, sizeof(struct audio_config));
-    memcpy(&out->pcm_config, &pcm_config_out, sizeof(struct pcm_config));
-    out->pcm_config.rate = config->sample_rate;
-    out->pcm_config.period_size = out->pcm_config.rate*OUT_PERIOD_MS/1000;
-
-    out->standby = true;
-    out->underrun_position = 0;
-    out->underrun_time.tv_sec = 0;
-    out->underrun_time.tv_nsec = 0;
-    out->last_write_time_us = 0;
-    out->frames_total_buffered = 0;
-    out->frames_written = 0;
-    out->frames_rendered = 0;
-
-    ret = audio_vbuffer_init(&out->buffer,
-                      out->pcm_config.period_size*out->pcm_config.period_count,
-                      out->pcm_config.channels *
-                      pcm_format_to_bits(out->pcm_config.format) >> 3);
-    if (ret == 0) {
-        pthread_cond_init(&out->worker_wake, NULL);
-        out->worker_standby = true;
-        out->worker_exit = false;
-        pthread_create(&out->worker_thread, NULL, out_write_worker, out);
-
-    }
-    *stream_out = &out->stream;
-
-
-error:
-
-    return ret;
-}
-
-static void adev_close_output_stream(struct audio_hw_device *dev,
-                                     struct audio_stream_out *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    pthread_mutex_lock(&out->lock);
-    do_out_standby(out);
-
-    out->worker_exit = true;
-    pthread_cond_signal(&out->worker_wake);
-    pthread_mutex_unlock(&out->lock);
-
-    pthread_join(out->worker_thread, NULL);
-    pthread_mutex_destroy(&out->lock);
-    audio_vbuffer_destroy(&out->buffer);
-    free(stream);
-}
-
-static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
-{
-    return 0;
-}
-
-static char * adev_get_parameters(const struct audio_hw_device *dev,
-                                  const char *keys)
-{
-    return strdup("");
-}
-
-static int adev_init_check(const struct audio_hw_device *dev)
-{
-    return 0;
-}
-
-static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
-{
-    // adev_set_voice_volume is a no op (simulates phones)
-    return 0;
-}
-
-static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
-{
-    return -ENOSYS;
-}
-
-static int adev_get_master_volume(struct audio_hw_device *dev, float *volume)
-{
-    return -ENOSYS;
-}
-
-static int adev_set_master_mute(struct audio_hw_device *dev, bool muted)
-{
-    return -ENOSYS;
-}
-
-static int adev_get_master_mute(struct audio_hw_device *dev, bool *muted)
-{
-    return -ENOSYS;
-}
-
-static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
-{
-    // adev_set_mode is a no op (simulates phones)
-    return 0;
-}
-
-static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-    pthread_mutex_lock(&adev->lock);
-    adev->mic_mute = state;
-    pthread_mutex_unlock(&adev->lock);
-    return 0;
-}
-
-static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-    pthread_mutex_lock(&adev->lock);
-    *state = adev->mic_mute;
-    pthread_mutex_unlock(&adev->lock);
-    return 0;
-}
-
-
-static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
-                                         const struct audio_config *config)
-{
-    return get_input_buffer_size(config->sample_rate, config->format, config->channel_mask);
-}
-
-
-static void adev_close_input_stream(struct audio_hw_device *dev,
-                                   struct audio_stream_in *stream)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    pthread_mutex_lock(&in->lock);
-    do_in_standby(in);
-
-    in->worker_exit = true;
-    pthread_cond_signal(&in->worker_wake);
-    pthread_mutex_unlock(&in->lock);
-    pthread_join(in->worker_thread, NULL);
-
-    if (in->stereo_to_mono_buf != NULL) {
-        free(in->stereo_to_mono_buf);
-        in->stereo_to_mono_buf_size = 0;
-    }
-
-    pthread_mutex_destroy(&in->lock);
-    audio_vbuffer_destroy(&in->buffer);
-    free(stream);
-}
-
-
-static int adev_open_input_stream(struct audio_hw_device *dev,
-                                  audio_io_handle_t handle,
-                                  audio_devices_t devices,
-                                  struct audio_config *config,
-                                  struct audio_stream_in **stream_in,
-                                  audio_input_flags_t flags __unused,
-                                  const char *address __unused,
-                                  audio_source_t source __unused)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-    struct generic_stream_in *in;
-    int ret = 0;
-    if (refine_input_parameters(&config->sample_rate, &config->format, &config->channel_mask)) {
-        ALOGE("Error opening input stream format %d, channel_mask %04x, sample_rate %u",
-              config->format, config->channel_mask, config->sample_rate);
-        ret = -EINVAL;
-        goto error;
-    }
-
-    in = (struct generic_stream_in *)calloc(1, sizeof(struct generic_stream_in));
-    if (!in) {
-        ret = -ENOMEM;
-        goto error;
-    }
-
-    in->stream.common.get_sample_rate = in_get_sample_rate;
-    in->stream.common.set_sample_rate = in_set_sample_rate;         // no op
-    in->stream.common.get_buffer_size = in_get_buffer_size;
-    in->stream.common.get_channels = in_get_channels;
-    in->stream.common.get_format = in_get_format;
-    in->stream.common.set_format = in_set_format;                   // no op
-    in->stream.common.standby = in_standby;
-    in->stream.common.dump = in_dump;
-    in->stream.common.set_parameters = in_set_parameters;
-    in->stream.common.get_parameters = in_get_parameters;
-    in->stream.common.add_audio_effect = in_add_audio_effect;       // no op
-    in->stream.common.remove_audio_effect = in_remove_audio_effect; // no op
-    in->stream.set_gain = in_set_gain;                              // no op
-    in->stream.read = in_read;
-    in->stream.get_input_frames_lost = in_get_input_frames_lost;    // no op
-    in->stream.get_capture_position = in_get_capture_position;
-    in->stream.get_active_microphones = in_get_active_microphones;
-
-    pthread_mutex_init(&in->lock, (const pthread_mutexattr_t *) NULL);
-    in->dev = adev;
-    in->device = devices;
-    memcpy(&in->req_config, config, sizeof(struct audio_config));
-    memcpy(&in->pcm_config, &pcm_config_in, sizeof(struct pcm_config));
-    in->pcm_config.rate = config->sample_rate;
-    in->pcm_config.period_size = in->pcm_config.rate*IN_PERIOD_MS/1000;
-
-    in->stereo_to_mono_buf = NULL;
-    in->stereo_to_mono_buf_size = 0;
-
-    in->standby = true;
-    in->standby_position = 0;
-    in->standby_exit_time.tv_sec = 0;
-    in->standby_exit_time.tv_nsec = 0;
-    in->standby_frames_read = 0;
-
-    ret = audio_vbuffer_init(&in->buffer,
-                      in->pcm_config.period_size*in->pcm_config.period_count,
-                      in->pcm_config.channels *
-                      pcm_format_to_bits(in->pcm_config.format) >> 3);
-    if (ret == 0) {
-        pthread_cond_init(&in->worker_wake, NULL);
-        in->worker_standby = true;
-        in->worker_exit = false;
-        pthread_create(&in->worker_thread, NULL, in_read_worker, in);
-    }
-
-    *stream_in = &in->stream;
-
-error:
-    return ret;
-}
-
-
-static int adev_dump(const audio_hw_device_t *dev, int fd)
-{
-    return 0;
-}
-
-static int adev_get_microphones(const audio_hw_device_t *dev,
-                                struct audio_microphone_characteristic_t *mic_array,
-                                size_t *mic_count)
-{
-    if (mic_count == NULL) {
-        return -ENOSYS;
-    }
-
-    if (*mic_count == 0) {
-        *mic_count = 1;
-        return 0;
-    }
-
-    if (mic_array == NULL) {
-        return -ENOSYS;
-    }
-
-    strncpy(mic_array->device_id, "mic_default", AUDIO_MICROPHONE_ID_MAX_LEN - 1);
-    mic_array->device = AUDIO_DEVICE_IN_BUILTIN_MIC;
-    strncpy(mic_array->address, AUDIO_BOTTOM_MICROPHONE_ADDRESS,
-            AUDIO_DEVICE_MAX_ADDRESS_LEN - 1);
-    memset(mic_array->channel_mapping, AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED,
-           sizeof(mic_array->channel_mapping));
-    mic_array->location = AUDIO_MICROPHONE_LOCATION_UNKNOWN;
-    mic_array->group = 0;
-    mic_array->index_in_the_group = 0;
-    mic_array->sensitivity = AUDIO_MICROPHONE_SENSITIVITY_UNKNOWN;
-    mic_array->max_spl = AUDIO_MICROPHONE_SPL_UNKNOWN;
-    mic_array->min_spl = AUDIO_MICROPHONE_SPL_UNKNOWN;
-    mic_array->directionality = AUDIO_MICROPHONE_DIRECTIONALITY_UNKNOWN;
-    mic_array->num_frequency_responses = 0;
-    mic_array->geometric_location.x = AUDIO_MICROPHONE_COORDINATE_UNKNOWN;
-    mic_array->geometric_location.y = AUDIO_MICROPHONE_COORDINATE_UNKNOWN;
-    mic_array->geometric_location.z = AUDIO_MICROPHONE_COORDINATE_UNKNOWN;
-    mic_array->orientation.x = AUDIO_MICROPHONE_COORDINATE_UNKNOWN;
-    mic_array->orientation.y = AUDIO_MICROPHONE_COORDINATE_UNKNOWN;
-    mic_array->orientation.z = AUDIO_MICROPHONE_COORDINATE_UNKNOWN;
-
-    *mic_count = 1;
-    return 0;
-}
-
-static int adev_close(hw_device_t *dev)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-    int ret = 0;
-    if (!adev)
-        return 0;
-
-    pthread_mutex_lock(&adev_init_lock);
-
-    if (audio_device_ref_count == 0) {
-        ALOGE("adev_close called when ref_count 0");
-        ret = -EINVAL;
-        goto error;
-    }
-
-    if ((--audio_device_ref_count) == 0) {
-        if (adev->mixer) {
-            mixer_close(adev->mixer);
-        }
-        free(adev);
-    }
-
-error:
-    pthread_mutex_unlock(&adev_init_lock);
-    return ret;
-}
-
-static int adev_open(const hw_module_t* module, const char* name,
-                     hw_device_t** device)
-{
-    static struct generic_audio_device *adev;
-
-    if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
-        return -EINVAL;
-
-    pthread_once(&sFallbackOnce, fallback_init);
-    if (sFallback != NULL) {
-        return sFallback->common.methods->open(&sFallback->common, name, device);
-    }
-
-    pthread_mutex_lock(&adev_init_lock);
-    if (audio_device_ref_count != 0) {
-        *device = &adev->device.common;
-        audio_device_ref_count++;
-        ALOGV("%s: returning existing instance of adev", __func__);
-        ALOGV("%s: exit", __func__);
-        goto unlock;
-    }
-    adev = calloc(1, sizeof(struct generic_audio_device));
-
-    pthread_mutex_init(&adev->lock, (const pthread_mutexattr_t *) NULL);
-
-    adev->device.common.tag = HARDWARE_DEVICE_TAG;
-    adev->device.common.version = AUDIO_DEVICE_API_VERSION_2_0;
-    adev->device.common.module = (struct hw_module_t *) module;
-    adev->device.common.close = adev_close;
-
-    adev->device.init_check = adev_init_check;               // no op
-    adev->device.set_voice_volume = adev_set_voice_volume;   // no op
-    adev->device.set_master_volume = adev_set_master_volume; // no op
-    adev->device.get_master_volume = adev_get_master_volume; // no op
-    adev->device.set_master_mute = adev_set_master_mute;     // no op
-    adev->device.get_master_mute = adev_get_master_mute;     // no op
-    adev->device.set_mode = adev_set_mode;                   // no op
-    adev->device.set_mic_mute = adev_set_mic_mute;
-    adev->device.get_mic_mute = adev_get_mic_mute;
-    adev->device.set_parameters = adev_set_parameters;       // no op
-    adev->device.get_parameters = adev_get_parameters;       // no op
-    adev->device.get_input_buffer_size = adev_get_input_buffer_size;
-    adev->device.open_output_stream = adev_open_output_stream;
-    adev->device.close_output_stream = adev_close_output_stream;
-    adev->device.open_input_stream = adev_open_input_stream;
-    adev->device.close_input_stream = adev_close_input_stream;
-    adev->device.dump = adev_dump;
-    adev->device.get_microphones = adev_get_microphones;
-
-    *device = &adev->device.common;
-
-    adev->mixer = mixer_open(PCM_CARD);
-    struct mixer_ctl *ctl;
-
-    // Set default mixer ctls
-    // Enable channels and set volume
-    for (int i = 0; i < (int)mixer_get_num_ctls(adev->mixer); i++) {
-        ctl = mixer_get_ctl(adev->mixer, i);
-        ALOGD("mixer %d name %s", i, mixer_ctl_get_name(ctl));
-        if (!strcmp(mixer_ctl_get_name(ctl), "Master Playback Volume") ||
-            !strcmp(mixer_ctl_get_name(ctl), "Capture Volume")) {
-            for (int z = 0; z < (int)mixer_ctl_get_num_values(ctl); z++) {
-                ALOGD("set ctl %d to %d", z, 100);
-                mixer_ctl_set_percent(ctl, z, 100);
-            }
-            continue;
-        }
-        if (!strcmp(mixer_ctl_get_name(ctl), "Master Playback Switch") ||
-            !strcmp(mixer_ctl_get_name(ctl), "Capture Switch")) {
-            for (int z = 0; z < (int)mixer_ctl_get_num_values(ctl); z++) {
-                ALOGD("set ctl %d to %d", z, 1);
-                mixer_ctl_set_value(ctl, z, 1);
-            }
-            continue;
-        }
-    }
-
-    audio_device_ref_count++;
-
-unlock:
-    pthread_mutex_unlock(&adev_init_lock);
-    return 0;
-}
-
-static struct hw_module_methods_t hal_module_methods = {
-    .open = adev_open,
-};
-
-struct audio_module HAL_MODULE_INFO_SYM = {
-    .common = {
-        .tag = HARDWARE_MODULE_TAG,
-        .module_api_version = AUDIO_MODULE_API_VERSION_0_1,
-        .hal_api_version = HARDWARE_HAL_API_VERSION,
-        .id = AUDIO_HARDWARE_MODULE_ID,
-        .name = "Generic audio HW HAL",
-        .author = "The Android Open Source Project",
-        .methods = &hal_module_methods,
-    },
-};
-
-/* This function detects whether or not we should be using an alsa audio device
- * or fall back to the legacy default_audio driver.
- */
-static void
-fallback_init(void)
-{
-    void* module;
-
-    FILE *fptr = fopen ("/proc/asound/pcm", "r");
-    if (fptr != NULL) {
-      // asound/pcm is empty if there are no devices
-      int c = fgetc(fptr);
-      fclose(fptr);
-      if (c != EOF) {
-          ALOGD("Emulator host-side ALSA audio emulation detected.");
-          return;
-      }
-    }
-
-    ALOGD("Emulator without host-side ALSA audio emulation detected.");
-#if __LP64__
-    module = dlopen("/vendor/lib64/hw/audio.primary.i9305_legacy.so",
-                    RTLD_LAZY|RTLD_LOCAL);
-#else
-    module = dlopen("/vendor/lib/hw/audio.primary.i9305_legacy.so",
-                    RTLD_LAZY|RTLD_LOCAL);
-#endif
-    if (module != NULL) {
-        sFallback = (struct audio_module *)(dlsym(module, HAL_MODULE_INFO_SYM_AS_STR));
-        if (sFallback == NULL) {
-            dlclose(module);
-        }
-    }
-    if (sFallback == NULL) {
-        ALOGE("Could not find legacy fallback module!?");
-    }
-}
diff --git a/audio/audio_hw_legacy.c b/audio/audio_hw_legacy.c
deleted file mode 100644
index 3d6a253..0000000
--- a/audio/audio_hw_legacy.c
+++ /dev/null
@@ -1,714 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * 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.
- */
-
-#define LOG_TAG "audio_hw_generic"
-/*#define LOG_NDEBUG 0*/
-
-#include <errno.h>
-#include <pthread.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <log/log.h>
-#include <cutils/str_parms.h>
-
-#include <hardware/hardware.h>
-#include <system/audio.h>
-#include <hardware/audio.h>
-
-
-#define AUDIO_DEVICE_NAME "/dev/eac"
-#define OUT_BUFFER_SIZE 4096
-#define OUT_LATENCY_MS 20
-#define IN_SAMPLING_RATE 8000
-#define IN_BUFFER_SIZE 320
-
-
-struct generic_audio_device {
-    struct audio_hw_device device;
-    pthread_mutex_t lock;
-    struct audio_stream_out *output;
-    struct audio_stream_in *input;
-    int fd;
-    bool mic_mute;
-};
-
-
-struct generic_stream_out {
-    struct audio_stream_out stream;
-    struct generic_audio_device *dev;
-    audio_devices_t device;
-    uint32_t sample_rate;
-};
-
-struct generic_stream_in {
-    struct audio_stream_in stream;
-    struct generic_audio_device *dev;
-    audio_devices_t device;
-};
-
-
-static uint32_t out_get_sample_rate(const struct audio_stream *stream)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    return out->sample_rate;
-}
-
-static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
-{
-    return -ENOSYS;
-}
-
-static size_t out_get_buffer_size(const struct audio_stream *stream)
-{
-    return OUT_BUFFER_SIZE;
-}
-
-static audio_channel_mask_t out_get_channels(const struct audio_stream *stream)
-{
-    return AUDIO_CHANNEL_OUT_STEREO;
-}
-
-static audio_format_t out_get_format(const struct audio_stream *stream)
-{
-    return AUDIO_FORMAT_PCM_16_BIT;
-}
-
-static int out_set_format(struct audio_stream *stream, audio_format_t format)
-{
-    return -ENOSYS;
-}
-
-static int out_standby(struct audio_stream *stream)
-{
-    // out_standby is a no op
-    return 0;
-}
-
-static int out_dump(const struct audio_stream *stream, int fd)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-
-    dprintf(fd, "\tout_dump:\n"
-                "\t\tsample rate: %u\n"
-                "\t\tbuffer size: %zu\n"
-                "\t\tchannel mask: %08x\n"
-                "\t\tformat: %d\n"
-                "\t\tdevice: %08x\n"
-                "\t\taudio dev: %p\n\n",
-                out_get_sample_rate(stream),
-                out_get_buffer_size(stream),
-                out_get_channels(stream),
-                out_get_format(stream),
-                out->device,
-                out->dev);
-
-    return 0;
-}
-
-static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    struct str_parms *parms;
-    char value[32];
-    int ret;
-    long val;
-    char *end;
-
-    parms = str_parms_create_str(kvpairs);
-
-    ret = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING,
-                            value, sizeof(value));
-    if (ret >= 0) {
-        errno = 0;
-        val = strtol(value, &end, 10);
-        if (errno == 0 && (end != NULL) && (*end == '\0') && ((int)val == val)) {
-            out->device = (int)val;
-        } else {
-            ret = -EINVAL;
-        }
-    }
-
-    str_parms_destroy(parms);
-    return ret;
-}
-
-static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    struct str_parms *query = str_parms_create_str(keys);
-    char *str;
-    char value[256];
-    struct str_parms *reply = str_parms_create();
-    int ret;
-
-    ret = str_parms_get_str(query, AUDIO_PARAMETER_STREAM_ROUTING, value, sizeof(value));
-    if (ret >= 0) {
-        str_parms_add_int(reply, AUDIO_PARAMETER_STREAM_ROUTING, out->device);
-        str = strdup(str_parms_to_str(reply));
-    } else {
-        str = strdup(keys);
-    }
-
-    str_parms_destroy(query);
-    str_parms_destroy(reply);
-    return str;
-}
-
-static uint32_t out_get_latency(const struct audio_stream_out *stream)
-{
-    return OUT_LATENCY_MS;
-}
-
-static int out_set_volume(struct audio_stream_out *stream, float left,
-                          float right)
-{
-    return -ENOSYS;
-}
-
-static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
-                         size_t bytes)
-{
-    struct generic_stream_out *out = (struct generic_stream_out *)stream;
-    struct generic_audio_device *adev = out->dev;
-
-    pthread_mutex_lock(&adev->lock);
-    if (adev->fd >= 0)
-        bytes = write(adev->fd, buffer, bytes);
-    pthread_mutex_unlock(&adev->lock);
-
-    return bytes;
-}
-
-static int out_get_render_position(const struct audio_stream_out *stream,
-                                   uint32_t *dsp_frames)
-{
-    return -ENOSYS;
-}
-
-static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // out_add_audio_effect is a no op
-    return 0;
-}
-
-static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // out_remove_audio_effect is a no op
-    return 0;
-}
-
-static int out_get_next_write_timestamp(const struct audio_stream_out *stream,
-                                        int64_t *timestamp)
-{
-    return -ENOSYS;
-}
-
-/** audio_stream_in implementation **/
-static uint32_t in_get_sample_rate(const struct audio_stream *stream)
-{
-    return IN_SAMPLING_RATE;
-}
-
-static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
-{
-    return -ENOSYS;
-}
-
-static size_t in_get_buffer_size(const struct audio_stream *stream)
-{
-    return IN_BUFFER_SIZE;
-}
-
-static audio_channel_mask_t in_get_channels(const struct audio_stream *stream)
-{
-    return AUDIO_CHANNEL_IN_MONO;
-}
-
-static audio_format_t in_get_format(const struct audio_stream *stream)
-{
-    return AUDIO_FORMAT_PCM_16_BIT;
-}
-
-static int in_set_format(struct audio_stream *stream, audio_format_t format)
-{
-    return -ENOSYS;
-}
-
-static int in_standby(struct audio_stream *stream)
-{
-    // in_standby is a no op
-    return 0;
-}
-
-static int in_dump(const struct audio_stream *stream, int fd)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-
-    dprintf(fd, "\tin_dump:\n"
-                "\t\tsample rate: %u\n"
-                "\t\tbuffer size: %zu\n"
-                "\t\tchannel mask: %08x\n"
-                "\t\tformat: %d\n"
-                "\t\tdevice: %08x\n"
-                "\t\taudio dev: %p\n\n",
-                in_get_sample_rate(stream),
-                in_get_buffer_size(stream),
-                in_get_channels(stream),
-                in_get_format(stream),
-                in->device,
-                in->dev);
-
-    return 0;
-}
-
-static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    struct str_parms *parms;
-    char value[32];
-    int ret;
-    long val;
-    char *end;
-
-    parms = str_parms_create_str(kvpairs);
-
-    ret = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING,
-                            value, sizeof(value));
-    if (ret >= 0) {
-        errno = 0;
-        val = strtol(value, &end, 10);
-        if ((errno == 0) && (end != NULL) && (*end == '\0') && ((int)val == val)) {
-            in->device = (int)val;
-        } else {
-            ret = -EINVAL;
-        }
-    }
-
-    str_parms_destroy(parms);
-    return ret;
-}
-
-static char * in_get_parameters(const struct audio_stream *stream,
-                                const char *keys)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    struct str_parms *query = str_parms_create_str(keys);
-    char *str;
-    char value[256];
-    struct str_parms *reply = str_parms_create();
-    int ret;
-
-    ret = str_parms_get_str(query, AUDIO_PARAMETER_STREAM_ROUTING, value, sizeof(value));
-    if (ret >= 0) {
-        str_parms_add_int(reply, AUDIO_PARAMETER_STREAM_ROUTING, in->device);
-        str = strdup(str_parms_to_str(reply));
-    } else {
-        str = strdup(keys);
-    }
-
-    str_parms_destroy(query);
-    str_parms_destroy(reply);
-    return str;
-}
-
-static int in_set_gain(struct audio_stream_in *stream, float gain)
-{
-    // in_set_gain is a no op
-    return 0;
-}
-
-static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
-                       size_t bytes)
-{
-    struct generic_stream_in *in = (struct generic_stream_in *)stream;
-    struct generic_audio_device *adev = in->dev;
-
-    pthread_mutex_lock(&adev->lock);
-    if (adev->fd >= 0)
-        bytes = read(adev->fd, buffer, bytes);
-    if (adev->mic_mute && (bytes > 0)) {
-        memset(buffer, 0, bytes);
-    }
-    pthread_mutex_unlock(&adev->lock);
-
-    return bytes;
-}
-
-static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
-{
-    return 0;
-}
-
-static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // in_add_audio_effect is a no op
-    return 0;
-}
-
-static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
-{
-    // in_add_audio_effect is a no op
-    return 0;
-}
-
-static int adev_open_output_stream(struct audio_hw_device *dev,
-                                   audio_io_handle_t handle,
-                                   audio_devices_t devices,
-                                   audio_output_flags_t flags,
-                                   struct audio_config *config,
-                                   struct audio_stream_out **stream_out,
-                                   const char *address __unused)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-    struct generic_stream_out *out;
-    static const uint32_t sample_rates [] = { 44100, 48000 };
-    static const int sample_rates_count = sizeof(sample_rates)/sizeof(sample_rates[0]);
-    int ret = 0;
-
-    pthread_mutex_lock(&adev->lock);
-    if (adev->output != NULL) {
-        ret = -ENOSYS;
-        goto error;
-    }
-
-    if ((config->format != AUDIO_FORMAT_PCM_16_BIT) ||
-        (config->channel_mask != AUDIO_CHANNEL_OUT_STEREO) ) {
-        ALOGE("Error opening output stream, format %d, channel_mask %04x",
-              config->format, config->channel_mask);
-        config->format = AUDIO_FORMAT_PCM_16_BIT;
-        config->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
-        ret = -EINVAL;
-    }
-
-    for (int idx = 0; idx < sample_rates_count; idx++) {
-        if (config->sample_rate < sample_rates[idx]) {
-            config->sample_rate = sample_rates[idx];
-            ALOGE("Error opening output stream, sample_rate %u", config->sample_rate);
-            ret = -EINVAL;
-            break;
-        } else if (config->sample_rate == sample_rates[idx]) {
-            break;
-        } else if (idx == sample_rates_count-1) {
-            // Cap it to the highest rate we support
-            config->sample_rate = sample_rates[idx];
-            ALOGE("Error opening output stream, sample_rate %u", config->sample_rate);
-            ret = -EINVAL;
-        }
-    }
-
-    if (ret != 0) goto error;
-
-    out = (struct generic_stream_out *)calloc(1, sizeof(struct generic_stream_out));
-
-    out->stream.common.get_sample_rate = out_get_sample_rate;
-    out->stream.common.set_sample_rate = out_set_sample_rate;
-    out->stream.common.get_buffer_size = out_get_buffer_size;
-    out->stream.common.get_channels = out_get_channels;
-    out->stream.common.get_format = out_get_format;
-    out->stream.common.set_format = out_set_format;
-    out->stream.common.standby = out_standby;
-    out->stream.common.dump = out_dump;
-    out->stream.common.set_parameters = out_set_parameters;
-    out->stream.common.get_parameters = out_get_parameters;
-    out->stream.common.add_audio_effect = out_add_audio_effect;
-    out->stream.common.remove_audio_effect = out_remove_audio_effect;
-    out->stream.get_latency = out_get_latency;
-    out->stream.set_volume = out_set_volume;
-    out->stream.write = out_write;
-    out->stream.get_render_position = out_get_render_position;
-    out->stream.get_next_write_timestamp = out_get_next_write_timestamp;
-    out->sample_rate = config->sample_rate;
-
-    out->dev = adev;
-    out->device = devices;
-    adev->output = (struct audio_stream_out *)out;
-    *stream_out = &out->stream;
-
-error:
-    pthread_mutex_unlock(&adev->lock);
-
-    return ret;
-}
-
-static void adev_close_output_stream(struct audio_hw_device *dev,
-                                     struct audio_stream_out *stream)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-
-    pthread_mutex_lock(&adev->lock);
-    if (stream == adev->output) {
-        free(stream);
-        adev->output = NULL;
-    }
-    pthread_mutex_unlock(&adev->lock);
-}
-
-static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
-{
-    return 0;
-}
-
-static char * adev_get_parameters(const struct audio_hw_device *dev,
-                                  const char *keys)
-{
-    return strdup("");
-}
-
-static int adev_init_check(const struct audio_hw_device *dev)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-
-    if (adev->fd >= 0)
-        return 0;
-
-    return -ENODEV;
-}
-
-static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
-{
-    // adev_set_voice_volume is a no op (simulates phones)
-    return 0;
-}
-
-static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
-{
-    return -ENOSYS;
-}
-
-static int adev_get_master_volume(struct audio_hw_device *dev, float *volume)
-{
-    return -ENOSYS;
-}
-
-static int adev_set_master_mute(struct audio_hw_device *dev, bool muted)
-{
-    return -ENOSYS;
-}
-
-static int adev_get_master_mute(struct audio_hw_device *dev, bool *muted)
-{
-    return -ENOSYS;
-}
-
-static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
-{
-    // adev_set_mode is a no op (simulates phones)
-    return 0;
-}
-
-static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-
-    pthread_mutex_lock(&adev->lock);
-    adev->mic_mute = state;
-    pthread_mutex_unlock(&adev->lock);
-    return 0;
-}
-
-static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-
-    pthread_mutex_lock(&adev->lock);
-    *state = adev->mic_mute;
-    pthread_mutex_unlock(&adev->lock);
-
-    return 0;
-}
-
-static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
-                                         const struct audio_config *config)
-{
-    return IN_BUFFER_SIZE;
-}
-
-static int adev_open_input_stream(struct audio_hw_device *dev,
-                                  audio_io_handle_t handle,
-                                  audio_devices_t devices,
-                                  struct audio_config *config,
-                                  struct audio_stream_in **stream_in,
-                                  audio_input_flags_t flags __unused,
-                                  const char *address __unused,
-                                  audio_source_t source __unused)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-    struct generic_stream_in *in;
-    int ret = 0;
-
-    pthread_mutex_lock(&adev->lock);
-    if (adev->input != NULL) {
-        ret = -ENOSYS;
-        goto error;
-    }
-
-    if ((config->format != AUDIO_FORMAT_PCM_16_BIT) ||
-        (config->channel_mask != AUDIO_CHANNEL_IN_MONO) ||
-        (config->sample_rate != IN_SAMPLING_RATE)) {
-        ALOGE("Error opening input stream format %d, channel_mask %04x, sample_rate %u",
-              config->format, config->channel_mask, config->sample_rate);
-        config->format = AUDIO_FORMAT_PCM_16_BIT;
-        config->channel_mask = AUDIO_CHANNEL_IN_MONO;
-        config->sample_rate = IN_SAMPLING_RATE;
-        ret = -EINVAL;
-        goto error;
-    }
-
-    in = (struct generic_stream_in *)calloc(1, sizeof(struct generic_stream_in));
-
-    in->stream.common.get_sample_rate = in_get_sample_rate;
-    in->stream.common.set_sample_rate = in_set_sample_rate;
-    in->stream.common.get_buffer_size = in_get_buffer_size;
-    in->stream.common.get_channels = in_get_channels;
-    in->stream.common.get_format = in_get_format;
-    in->stream.common.set_format = in_set_format;
-    in->stream.common.standby = in_standby;
-    in->stream.common.dump = in_dump;
-    in->stream.common.set_parameters = in_set_parameters;
-    in->stream.common.get_parameters = in_get_parameters;
-    in->stream.common.add_audio_effect = in_add_audio_effect;
-    in->stream.common.remove_audio_effect = in_remove_audio_effect;
-    in->stream.set_gain = in_set_gain;
-    in->stream.read = in_read;
-    in->stream.get_input_frames_lost = in_get_input_frames_lost;
-
-    in->dev = adev;
-    in->device = devices;
-    adev->input = (struct audio_stream_in *)in;
-    *stream_in = &in->stream;
-
-error:
-    pthread_mutex_unlock(&adev->lock);
-
-    return ret;
-}
-
-static void adev_close_input_stream(struct audio_hw_device *dev,
-                                   struct audio_stream_in *stream)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-
-    pthread_mutex_lock(&adev->lock);
-    if (stream == adev->input) {
-        free(stream);
-        adev->input = NULL;
-    }
-    pthread_mutex_unlock(&adev->lock);
-}
-
-static int adev_dump(const audio_hw_device_t *dev, int fd)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-
-    const size_t SIZE = 256;
-    char buffer[SIZE];
-
-    dprintf(fd, "\nadev_dump:\n"
-                "\tfd: %d\n"
-                "\tmic_mute: %s\n"
-                "\toutput: %p\n"
-                "\tinput: %p\n\n",
-                adev->fd,
-                adev->mic_mute ? "true": "false",
-                adev->output,
-                adev->input);
-
-    if (adev->output != NULL)
-        out_dump((const struct audio_stream *)adev->output, fd);
-    if (adev->input != NULL)
-        in_dump((const struct audio_stream *)adev->input, fd);
-
-    return 0;
-}
-
-static int adev_close(hw_device_t *dev)
-{
-    struct generic_audio_device *adev = (struct generic_audio_device *)dev;
-
-    adev_close_output_stream((struct audio_hw_device *)dev, adev->output);
-    adev_close_input_stream((struct audio_hw_device *)dev, adev->input);
-
-    if (adev->fd >= 0)
-        close(adev->fd);
-
-    free(dev);
-    return 0;
-}
-
-static int adev_open(const hw_module_t* module, const char* name,
-                     hw_device_t** device)
-{
-    struct generic_audio_device *adev;
-    int fd;
-
-    if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
-        return -EINVAL;
-
-    fd = open(AUDIO_DEVICE_NAME, O_RDWR);
-    if (fd < 0)
-        return -ENOSYS;
-
-    adev = calloc(1, sizeof(struct generic_audio_device));
-
-    adev->fd = fd;
-
-    adev->device.common.tag = HARDWARE_DEVICE_TAG;
-    adev->device.common.version = AUDIO_DEVICE_API_VERSION_2_0;
-    adev->device.common.module = (struct hw_module_t *) module;
-    adev->device.common.close = adev_close;
-
-    adev->device.init_check = adev_init_check;
-    adev->device.set_voice_volume = adev_set_voice_volume;
-    adev->device.set_master_volume = adev_set_master_volume;
-    adev->device.get_master_volume = adev_get_master_volume;
-    adev->device.set_master_mute = adev_set_master_mute;
-    adev->device.get_master_mute = adev_get_master_mute;
-    adev->device.set_mode = adev_set_mode;
-    adev->device.set_mic_mute = adev_set_mic_mute;
-    adev->device.get_mic_mute = adev_get_mic_mute;
-    adev->device.set_parameters = adev_set_parameters;
-    adev->device.get_parameters = adev_get_parameters;
-    adev->device.get_input_buffer_size = adev_get_input_buffer_size;
-    adev->device.open_output_stream = adev_open_output_stream;
-    adev->device.close_output_stream = adev_close_output_stream;
-    adev->device.open_input_stream = adev_open_input_stream;
-    adev->device.close_input_stream = adev_close_input_stream;
-    adev->device.dump = adev_dump;
-
-    *device = &adev->device.common;
-
-    return 0;
-}
-
-static struct hw_module_methods_t hal_module_methods = {
-    .open = adev_open,
-};
-
-struct audio_module HAL_MODULE_INFO_SYM = {
-    .common = {
-        .tag = HARDWARE_MODULE_TAG,
-        .module_api_version = AUDIO_MODULE_API_VERSION_0_1,
-        .hal_api_version = HARDWARE_HAL_API_VERSION,
-        .id = AUDIO_HARDWARE_MODULE_ID,
-        .name = "Generic audio HW HAL",
-        .author = "The Android Open Source Project",
-        .methods = &hal_module_methods,
-    },
-};