commit b1c7323cbbaf33b9c14e2f9aee06a763cfc236c4
author Preetam Singh Ranawat <apranawat@codeaurora.org> Mon Apr 22 13:59:51 2019 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Mon Apr 22 01:35:35 2019 -0700
tree 9723d4388cd3aff43a9200aaffb0c038bef03c52
parent 5520a7787943d0bfa8b7335b4ab306b63d3699ed

hal: Add support for multiples of Native sampling rate.

 -Add support for multples of  native sampling rate for codec
  where mixing is not supported and mixing happens in DSP.

Change-Id: Ic7ae205086a31c67a034703a60d984e0f4c4b085

hal/msm8974/platform.c

diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 079d64c..c3f66e4 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -3455,7 +3455,7 @@
             ALOGD("%s:DSD playback is supported", __func__);
             my_data->is_dsd_supported = true;
             my_data->is_asrc_supported = true;
-            platform_set_native_support(NATIVE_AUDIO_MODE_MULTIPLE_44_1);
+            platform_set_native_support(NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_CODEC);
         }
     }
 
@@ -4133,12 +4133,14 @@
 int platform_set_native_support(int na_mode)
 {
     if (NATIVE_AUDIO_MODE_SRC == na_mode || NATIVE_AUDIO_MODE_TRUE_44_1 == na_mode
-        || NATIVE_AUDIO_MODE_MULTIPLE_44_1 == na_mode) {
+        || NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_CODEC == na_mode
+        || NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_DSP == na_mode) {
         na_props.platform_na_prop_enabled = na_props.ui_na_prop_enabled = true;
         na_props.na_mode = na_mode;
         ALOGD("%s:napb: native audio playback enabled in (%s) mode", __func__,
               ((na_mode == NATIVE_AUDIO_MODE_SRC)?"SRC":
-               (na_mode == NATIVE_AUDIO_MODE_TRUE_44_1)?"True":"Multiple"));
+               (na_mode == NATIVE_AUDIO_MODE_TRUE_44_1)?"True":
+               (na_mode == NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_CODEC)?"Multiple_Mix_Codec":"Multiple_Mix_DSP"));
     }
     else {
         na_props.platform_na_prop_enabled = false;
@@ -4213,8 +4215,10 @@
             mode = NATIVE_AUDIO_MODE_SRC;
         else if (value && !strncmp(value, "true", sizeof("true")))
             mode = NATIVE_AUDIO_MODE_TRUE_44_1;
-        else if (value && !strncmp(value, "multiple", sizeof("multiple")))
-            mode = NATIVE_AUDIO_MODE_MULTIPLE_44_1;
+        else if (value && !strncmp(value, "multiple_mix_codec", sizeof("multiple_mix_codec")))
+            mode = NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_CODEC;
+        else if (value && !strncmp(value, "multiple_mix_dsp", sizeof("multiple_mix_dsp")))
+            mode = NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_DSP;
         else {
             mode = NATIVE_AUDIO_MODE_INVALID;
             ALOGE("%s:napb:native_audio_mode in platform info xml,invalid mode string",
@@ -5309,7 +5313,7 @@
         } else if (NATIVE_AUDIO_MODE_SRC == na_mode &&
                    OUTPUT_SAMPLING_RATE_44100 == sample_rate) {
                 snd_device = SND_DEVICE_OUT_HEADPHONES_44_1;
-        } else if (NATIVE_AUDIO_MODE_MULTIPLE_44_1 == na_mode &&
+        } else if (NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_CODEC == na_mode &&
                    (sample_rate % OUTPUT_SAMPLING_RATE_44100 == 0) &&
                    (out->format != AUDIO_FORMAT_DSD)) {
                 snd_device = SND_DEVICE_OUT_HEADPHONES_44_1;
@@ -7872,7 +7876,26 @@
                  ALOGD("%s:becf: afe: true napb active set rate to 44.1 khz",
                        __func__);
             }
-        } else if (na_mode != NATIVE_AUDIO_MODE_MULTIPLE_44_1) {
+        } else if (na_mode == NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_DSP) {
+            struct listnode *node;
+            list_for_each(node, &adev->usecase_list) {
+                struct audio_usecase *uc;
+                uc = node_to_item(node, struct audio_usecase, list);
+                struct stream_out *curr_out =
+                    (struct stream_out*) uc->stream.out;
+
+                /*if native audio playback
+                * is active then it will take priority
+                */
+                if (curr_out && PCM_PLAYBACK == uc->type) {
+                    if (is_offload_usecase(uc->id) &&
+                        (curr_out->sample_rate % OUTPUT_SAMPLING_RATE_44100 == 0)) {
+                        ALOGD("%s:napb:native stream detected %d sampling rate", __func__, curr_out->sample_rate);
+                        sample_rate = curr_out->sample_rate;
+                    }
+                }
+            }
+        } else if (na_mode != NATIVE_AUDIO_MODE_MULTIPLE_MIX_IN_CODEC) {
             /*
              * Map native sampling rates to upper limit range
              * if multiple of native sampling rates are not supported.