Revert "audio: add support for routing to/from voice TX/RX paths"

This reverts commit 8edfd66a7b1d033e65e5621d25ef3cbf1f40316e.

Bug: 16949514
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 213dd05..6299455 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -58,9 +58,6 @@
 #define COMPRESS_OFFLOAD_PLAYBACK_LATENCY 96
 #define COMPRESS_PLAYBACK_VOLUME_MAX 0x2000
 
-#define PROXY_OPEN_RETRY_COUNT           100
-#define PROXY_OPEN_WAIT_TIME             20
-
 static unsigned int configured_low_latency_capture_period_size =
         LOW_LATENCY_CAPTURE_PERIOD_SIZE;
 
@@ -108,37 +105,6 @@
     .format = PCM_FORMAT_S16_LE,
 };
 
-#define AFE_PROXY_CHANNEL_COUNT 2
-#define AFE_PROXY_SAMPLING_RATE 48000
-
-#define AFE_PROXY_PLAYBACK_PERIOD_SIZE  768
-#define AFE_PROXY_PLAYBACK_PERIOD_COUNT 4
-
-struct pcm_config pcm_config_afe_proxy_playback = {
-    .channels = AFE_PROXY_CHANNEL_COUNT,
-    .rate = AFE_PROXY_SAMPLING_RATE,
-    .period_size = AFE_PROXY_PLAYBACK_PERIOD_SIZE,
-    .period_count = AFE_PROXY_PLAYBACK_PERIOD_COUNT,
-    .format = PCM_FORMAT_S16_LE,
-    .start_threshold = AFE_PROXY_PLAYBACK_PERIOD_SIZE,
-    .stop_threshold = INT_MAX,
-    .avail_min = AFE_PROXY_PLAYBACK_PERIOD_SIZE,
-};
-
-#define AFE_PROXY_RECORD_PERIOD_SIZE  768
-#define AFE_PROXY_RECORD_PERIOD_COUNT 4
-
-struct pcm_config pcm_config_afe_proxy_record = {
-    .channels = AFE_PROXY_CHANNEL_COUNT,
-    .rate = AFE_PROXY_SAMPLING_RATE,
-    .period_size = AFE_PROXY_RECORD_PERIOD_SIZE,
-    .period_count = AFE_PROXY_RECORD_PERIOD_COUNT,
-    .format = PCM_FORMAT_S16_LE,
-    .start_threshold = AFE_PROXY_RECORD_PERIOD_SIZE,
-    .stop_threshold = INT_MAX,
-    .avail_min = AFE_PROXY_RECORD_PERIOD_SIZE,
-};
-
 const char * const use_case_table[AUDIO_USECASE_MAX] = {
     [USECASE_AUDIO_PLAYBACK_DEEP_BUFFER] = "deep-buffer-playback",
     [USECASE_AUDIO_PLAYBACK_LOW_LATENCY] = "low-latency-playback",
@@ -156,9 +122,6 @@
     [USECASE_VOLTE_CALL] = "volte-call",
     [USECASE_QCHAT_CALL] = "qchat-call",
     [USECASE_VOWLAN_CALL] = "vowlan-call",
-
-    [USECASE_AUDIO_PLAYBACK_AFE_PROXY] = "afe-proxy-playback",
-    [USECASE_AUDIO_RECORD_AFE_PROXY] = "afe-proxy-record",
 };
 
 
@@ -573,14 +536,14 @@
             usecase->devices = usecase->stream.in->device;
             out_snd_device = SND_DEVICE_NONE;
             if (in_snd_device == SND_DEVICE_NONE) {
-                audio_devices_t out_device = AUDIO_DEVICE_NONE;
                 if (adev->active_input->source == AUDIO_SOURCE_VOICE_COMMUNICATION &&
                         adev->primary_output && !adev->primary_output->standby) {
-                    out_device = adev->primary_output->devices;
-                } else if (usecase->id == USECASE_AUDIO_RECORD_AFE_PROXY) {
-                    out_device = AUDIO_DEVICE_OUT_TELEPHONY_TX;
+                    in_snd_device = platform_get_input_snd_device(adev->platform,
+                                        adev->primary_output->devices);
+                } else {
+                    in_snd_device = platform_get_input_snd_device(adev->platform,
+                                                                  AUDIO_DEVICE_NONE);
                 }
-                in_snd_device = platform_get_input_snd_device(adev->platform, out_device);
             }
         }
     }
@@ -717,34 +680,15 @@
 
     ALOGV("%s: Opening PCM device card_id(%d) device_id(%d), channels %d",
           __func__, adev->snd_card, in->pcm_device_id, in->config.channels);
-
-    unsigned int flags = PCM_IN;
-    unsigned int pcm_open_retry_count = 0;
-
-    if (in->usecase == USECASE_AUDIO_RECORD_AFE_PROXY) {
-        flags |= PCM_MMAP | PCM_NOIRQ;
-        pcm_open_retry_count = PROXY_OPEN_RETRY_COUNT;
+    in->pcm = pcm_open(adev->snd_card, in->pcm_device_id,
+                           PCM_IN, &in->config);
+    if (in->pcm && !pcm_is_ready(in->pcm)) {
+        ALOGE("%s: %s", __func__, pcm_get_error(in->pcm));
+        pcm_close(in->pcm);
+        in->pcm = NULL;
+        ret = -EIO;
+        goto error_open;
     }
-
-    while (1) {
-        in->pcm = pcm_open(adev->snd_card, in->pcm_device_id,
-                           flags, &in->config);
-        if (in->pcm == NULL || !pcm_is_ready(in->pcm)) {
-            ALOGE("%s: %s", __func__, pcm_get_error(in->pcm));
-            if (in->pcm != NULL) {
-                pcm_close(in->pcm);
-                in->pcm = NULL;
-            }
-            if (pcm_open_retry_count-- == 0) {
-                ret = -EIO;
-                goto error_open;
-            }
-            usleep(PROXY_OPEN_WAIT_TIME * 1000);
-            continue;
-        }
-        break;
-    }
-
     ALOGV("%s: exit", __func__);
     return ret;
 
@@ -1048,31 +992,14 @@
     ALOGV("%s: Opening PCM device card_id(%d) device_id(%d) format(%#x)",
           __func__, adev->snd_card, out->pcm_device_id, out->config.format);
     if (out->usecase != USECASE_AUDIO_PLAYBACK_OFFLOAD) {
-        unsigned int flags = PCM_OUT;
-        unsigned int pcm_open_retry_count = 0;
-        if (out->usecase == USECASE_AUDIO_PLAYBACK_AFE_PROXY) {
-            flags |= PCM_MMAP | PCM_NOIRQ;
-            pcm_open_retry_count = PROXY_OPEN_RETRY_COUNT;
-        } else
-            flags |= PCM_MONOTONIC;
-
-        while (1) {
-            out->pcm = pcm_open(adev->snd_card, out->pcm_device_id,
-                               flags, &out->config);
-            if (out->pcm == NULL || !pcm_is_ready(out->pcm)) {
-                ALOGE("%s: %s", __func__, pcm_get_error(out->pcm));
-                if (out->pcm != NULL) {
-                    pcm_close(out->pcm);
-                    out->pcm = NULL;
-                }
-                if (pcm_open_retry_count-- == 0) {
-                    ret = -EIO;
-                    goto error_open;
-                }
-                usleep(PROXY_OPEN_WAIT_TIME * 1000);
-                continue;
-            }
-            break;
+        out->pcm = pcm_open(adev->snd_card, out->pcm_device_id,
+                               PCM_OUT | PCM_MONOTONIC, &out->config);
+        if (out->pcm && !pcm_is_ready(out->pcm)) {
+            ALOGE("%s: %s", __func__, pcm_get_error(out->pcm));
+            pcm_close(out->pcm);
+            out->pcm = NULL;
+            ret = -EIO;
+            goto error_open;
         }
     } else {
         out->pcm = NULL;
@@ -1174,6 +1101,7 @@
     if (out->usecase == USECASE_AUDIO_PLAYBACK_OFFLOAD) {
         return out->compr_config.fragment_size;
     }
+
     return out->config.period_size *
                 audio_stream_out_frame_size((const struct audio_stream_out *)stream);
 }
@@ -1268,10 +1196,6 @@
     return 0;
 }
 
-static bool output_drives_call(struct audio_device *adev, struct stream_out *out)
-{
-    return out == adev->primary_output || out == adev->voice_tx_output;
-}
 
 static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
 {
@@ -1331,24 +1255,20 @@
                 select_devices(adev, out->usecase);
 
             if ((adev->mode == AUDIO_MODE_IN_CALL) &&
-                    output_drives_call(adev, out)) {
-
-                if (adev->current_call_output != out) {
-                    voice_stop_call(adev);
-                }
-                if (!voice_is_in_call(adev)) {
-                    ret = voice_start_call(adev, out);
-                    adev->current_call_output = out;
-                } else
-                    voice_update_devices_for_all_voice_usecases(adev);
+                    !voice_is_in_call(adev) &&
+                    (out == adev->primary_output)) {
+                ret = voice_start_call(adev);
+            } else if ((adev->mode == AUDIO_MODE_IN_CALL) &&
+                            voice_is_in_call(adev) &&
+                            (out == adev->primary_output)) {
+                voice_update_devices_for_all_voice_usecases(adev);
             }
         }
 
         if ((adev->mode == AUDIO_MODE_NORMAL) &&
                 voice_is_in_call(adev) &&
-                output_drives_call(adev, out)) {
+                (out == adev->primary_output)) {
             ret = voice_stop_call(adev);
-            adev->current_call_output = NULL;
         }
 
         pthread_mutex_unlock(&adev->lock);
@@ -1496,11 +1416,7 @@
             if (out->muted)
                 memset((void *)buffer, 0, bytes);
             ALOGVV("%s: writing buffer (%d bytes) to pcm device", __func__, bytes);
-            if (out->usecase == USECASE_AUDIO_PLAYBACK_AFE_PROXY) {
-                ret = pcm_mmap_write(out->pcm, (void *)buffer, bytes);
-            }
-            else
-                ret = pcm_write(out->pcm, (void *)buffer, bytes);
+            ret = pcm_write(out->pcm, (void *)buffer, bytes);
             if (ret == 0)
                 out->written += bytes / (out->config.channels * sizeof(short));
         }
@@ -1770,7 +1686,7 @@
 
     if (ret >= 0) {
         val = atoi(value);
-        if (((int)in->device != val) && (val != 0)) {
+        if ((in->device != val) && (val != 0)) {
             in->device = val;
             /* If recording is in progress, change the tx device to new device */
             if (!in->standby)
@@ -1816,10 +1732,7 @@
     }
 
     if (in->pcm) {
-        if (in->usecase == USECASE_AUDIO_RECORD_AFE_PROXY) {
-            ret = pcm_mmap_read(in->pcm, buffer, bytes);
-        } else
-            ret = pcm_read(in->pcm, buffer, bytes);
+        ret = pcm_read(in->pcm, buffer, bytes);
     }
 
     /*
@@ -1988,28 +1901,6 @@
         ALOGV("%s: offloaded output offload_info version %04x bit rate %d",
                 __func__, config->offload_info.version,
                 config->offload_info.bit_rate);
-    } else  if (out->devices == AUDIO_DEVICE_OUT_TELEPHONY_TX) {
-        if (config->sample_rate == 0)
-            config->sample_rate = AFE_PROXY_SAMPLING_RATE;
-        if (config->sample_rate != 48000 && config->sample_rate != 16000 &&
-                config->sample_rate != 8000) {
-            config->sample_rate = AFE_PROXY_SAMPLING_RATE;
-            ret = -EINVAL;
-            goto error_open;
-        }
-        out->sample_rate = config->sample_rate;
-        out->config.rate = config->sample_rate;
-        if (config->format == AUDIO_FORMAT_DEFAULT)
-            config->format = AUDIO_FORMAT_PCM_16_BIT;
-        if (config->format != AUDIO_FORMAT_PCM_16_BIT) {
-            config->format = AUDIO_FORMAT_PCM_16_BIT;
-            ret = -EINVAL;
-            goto error_open;
-        }
-        out->format = config->format;
-        out->usecase = USECASE_AUDIO_PLAYBACK_AFE_PROXY;
-        out->config = pcm_config_afe_proxy_playback;
-        adev->voice_tx_output = out;
     } else {
         if (out->flags & AUDIO_OUTPUT_FLAG_DEEP_BUFFER) {
             out->usecase = USECASE_AUDIO_PLAYBACK_DEEP_BUFFER;
@@ -2039,7 +1930,7 @@
             __func__, use_case_table[out->usecase], config->format, out->config.format);
 
     if (flags & AUDIO_OUTPUT_FLAG_PRIMARY) {
-        if (adev->primary_output == NULL)
+        if(adev->primary_output == NULL)
             adev->primary_output = out;
         else {
             ALOGE("%s: Primary output is already opened", __func__);
@@ -2318,7 +2209,6 @@
     struct stream_in *in;
     int ret = 0, buffer_size, frame_size;
     int channel_count = audio_channel_count_from_in_mask(config->channel_mask);
-    bool is_low_latency = false;
 
     ALOGV("%s: enter", __func__);
     *stream_in = NULL;
@@ -2352,46 +2242,25 @@
     in->channel_mask = config->channel_mask;
 
     /* Update config params with the requested sample rate and channels */
-    if (in->device == AUDIO_DEVICE_IN_TELEPHONY_RX) {
-        if (config->sample_rate == 0)
-            config->sample_rate = AFE_PROXY_SAMPLING_RATE;
-        if (config->sample_rate != 48000 && config->sample_rate != 16000 &&
-                config->sample_rate != 8000) {
-            config->sample_rate = AFE_PROXY_SAMPLING_RATE;
-            ret = -EINVAL;
-            goto err_open;
-        }
-        if (config->format == AUDIO_FORMAT_DEFAULT)
-            config->format = AUDIO_FORMAT_PCM_16_BIT;
-        if (config->format != AUDIO_FORMAT_PCM_16_BIT) {
-            config->format = AUDIO_FORMAT_PCM_16_BIT;
-            ret = -EINVAL;
-            goto err_open;
-        }
-
-        in->usecase = USECASE_AUDIO_RECORD_AFE_PROXY;
-        in->config = pcm_config_afe_proxy_record;
-    } else {
-        in->usecase = USECASE_AUDIO_RECORD;
-        if (config->sample_rate == LOW_LATENCY_CAPTURE_SAMPLE_RATE &&
-                (flags & AUDIO_INPUT_FLAG_FAST) != 0) {
-            is_low_latency = true;
+    in->usecase = USECASE_AUDIO_RECORD;
+    bool is_low_latency = false;
+    if (config->sample_rate == LOW_LATENCY_CAPTURE_SAMPLE_RATE &&
+            (flags & AUDIO_INPUT_FLAG_FAST) != 0) {
+        is_low_latency = true;
 #if LOW_LATENCY_CAPTURE_USE_CASE
-            in->usecase = USECASE_AUDIO_RECORD_LOW_LATENCY;
+        in->usecase = USECASE_AUDIO_RECORD_LOW_LATENCY;
 #endif
-        }
-        in->config = pcm_config_audio_capture;
-
-        frame_size = audio_stream_in_frame_size(&in->stream);
-        buffer_size = get_input_buffer_size(config->sample_rate,
-                                            config->format,
-                                            channel_count,
-                                            is_low_latency);
-        in->config.period_size = buffer_size / frame_size;
     }
+    in->config = pcm_config_audio_capture;
     in->config.channels = channel_count;
     in->config.rate = config->sample_rate;
 
+    frame_size = audio_stream_in_frame_size(&in->stream);
+    buffer_size = get_input_buffer_size(config->sample_rate,
+                                        config->format,
+                                        channel_count,
+                                        is_low_latency);
+    in->config.period_size = buffer_size / frame_size;
 
     *stream_in = &in->stream;
     ALOGV("%s: exit", __func__);