commit 6e10133c1328707b1d8f737c96ef9e9b6df6e86a
author Balázs Triszka <balika011@gmail.com> Mon Feb 26 22:11:10 2018 +0100
committer Bruno Martins <bgcngm@gmail.com> Mon Dec 09 12:24:00 2019 +0100
tree 0cd57552ff9151cd252166d81fe912250835f04f
parent f9a065a283d9664745918099da5c332404d7ce64

hal: Add open source HAL for Elliptic Ultrasound

Author: Balázs Triszka <balika011@gmail.com>
Date:   Mon Feb 26 22:11:10 2018 +0100

    msm8996: ultrasound: Initial open source hal for Elliptic Ultrasound

    * Needed for proximity sensor on Xiaomi Mi MIX

    Change-Id: Iaef2266bc1b853d7a9d1e2a906014c6c91019d5f
    Signed-off-by: Balázs Triszka <balika011@gmail.com>

Author: Michael Bestas <mkbestas@lineageos.org>
Date:   Sat Feb 10 00:28:00 2018 +0200

    msm8996: ultrasound: Remove unused code

     * Params ultrasound_set_manual_calibration and ultrasound_set_sensitivity
       do not exist.

    Change-Id: I0004949db19b6ab7d49f20e422984e06a970cfe9

Author: Demon Singur <demonsingur@gmail.com>
Date:   Sat Apr 21 09:08:03 2018 +0000

    msm8996: hal: Update ultrasound route hacks

    Change-Id: If002503dfba0f005f73a4455d68bbcce9d2f617e

Change-Id: I798f5a8e4f25c4d192a95befd162b86495ccc178

hal/msm8974/platform.c

diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index daf6455..ff124eb 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -400,6 +400,9 @@
     [USECASE_AUDIO_PLAYBACK_INTERACTIVE_STREAM8] =
                      {PLAYBACK_INTERACTIVE_STRM_DEVICE8, PLAYBACK_INTERACTIVE_STRM_DEVICE8},
     [USECASE_AUDIO_EC_REF_LOOPBACK] = {-1, -1}, /* pcm id updated from platform info file */
+    [USECASE_AUDIO_ULTRASOUND_RX] = {ULTRASOUND_PCM_DEVICE, -1},
+    [USECASE_AUDIO_ULTRASOUND_TX] = {-1, ULTRASOUND_PCM_DEVICE},
+
 };
 
 /* Array to store sound devices */
@@ -473,6 +476,7 @@
     [SND_DEVICE_OUT_SPEAKER_PROTECTED_VBAT_RAS] = "speaker-protected-vbat",
     [SND_DEVICE_OUT_SPEAKER_AND_BT_SCO] = "speaker-and-bt-sco",
     [SND_DEVICE_OUT_SPEAKER_AND_BT_SCO_WB] = "speaker-and-bt-sco-wb",
+    [SND_DEVICE_OUT_ULTRASOUND_HANDSET] = "ultrasound-handset",
 
     /* Capture sound devices */
     [SND_DEVICE_IN_HANDSET_MIC] = "handset-mic",
@@ -569,6 +573,7 @@
     [SND_DEVICE_IN_INCALL_REC_TX] = "incall-rec-tx",
     [SND_DEVICE_IN_INCALL_REC_RX_TX] = "incall-rec-rx-tx",
     [SND_DEVICE_IN_EC_REF_LOOPBACK_QUAD] = "ec-ref-loopback-quad",
+    [SND_DEVICE_IN_ULTRASOUND_MIC] = "ultrasound-mic",
 };
 
 // Platform specific backend bit width table
@@ -976,6 +981,8 @@
     {TO_NAME_INDEX(USECASE_AUDIO_A2DP_ABR_FEEDBACK)},
     {TO_NAME_INDEX(USECASE_AUDIO_PLAYBACK_VOIP)},
     {TO_NAME_INDEX(USECASE_AUDIO_RECORD_VOIP)},
+    {TO_NAME_INDEX(USECASE_AUDIO_ULTRASOUND_RX)},
+    {TO_NAME_INDEX(USECASE_AUDIO_ULTRASOUND_TX)},
 };
 
 #define NO_COLS 2
@@ -1198,7 +1205,11 @@
         list_for_each(node, &adev->usecase_list) {
             usecase = node_to_item(node, struct audio_usecase, list);
 
-            if (usecase != NULL && usecase->type == PCM_PLAYBACK) {
+            if (usecase != NULL && usecase->type == PCM_PLAYBACK
+#ifdef ELLIPTIC_ULTRASOUND_ENABLED
+                    && usecase->id != USECASE_AUDIO_ULTRASOUND_RX
+#endif
+                ) {
                 int new_snd_device[2] = {0};
                 int i, num_devices = 1;