commit 32a62364ffa3b5ba108e1d0b4bd8cd5b649f3414
author Carter Hsu <carterhsu@google.com> Mon Oct 15 15:01:42 2018 -0700
committer Gerrit - the friendly Code Review server <code-review@localhost> Thu May 02 22:05:23 2019 -0700
tree c7869c518bd9236a04368dbb03e54a7065ee825c
parent 198adc001c0a8756f41ee28bcccf71f2922fe627

audio: support custom acdb for external device

add the specific external device setting in audio_platform_info.xml

For example:
<external_specific_dev>
    <ext_device name="SND_DEVICE_OUT_USB_HEADSET" usbid="18d1:5034" acdb_id="10" />
</external_specific_dev>

Bug: 117336751
Test: manual test ok
Change-Id: Ie9abcadd9bcd6d06c5d8f0a9807c3935ee4a1d35
Signed-off-by: Carter Hsu <carterhsu@google.com>
Signed-off-by: Robert Lee <lerobert@google.com>
(cherry picked from commit 017c63ae09841070e587d0f9f5c396efcb07e46d)

hal/platform_info.c

diff --git a/hal/platform_info.c b/hal/platform_info.c
index da0223e..05ee9cd 100644
--- a/hal/platform_info.c
+++ b/hal/platform_info.c
@@ -72,6 +72,7 @@
     MIC_INFO,
     CUSTOM_MTMX_PARAMS,
     CUSTOM_MTMX_PARAM_COEFFS,
+    EXTERNAL_DEVICE_SPECIFIC,
 } section_t;
 
 typedef void (* section_process_fn)(const XML_Char **attr);
@@ -95,6 +96,7 @@
 static void process_mic_info(const XML_Char **attr);
 static void process_custom_mtmx_params(const XML_Char **attr);
 static void process_custom_mtmx_param_coeffs(const XML_Char **attr);
+static void process_external_dev(const XML_Char **attr);
 
 static section_process_fn section_table[] = {
     [ROOT] = process_root,
@@ -115,6 +117,7 @@
     [MIC_INFO] = process_mic_info,
     [CUSTOM_MTMX_PARAMS] = process_custom_mtmx_params,
     [CUSTOM_MTMX_PARAM_COEFFS] = process_custom_mtmx_param_coeffs,
+    [EXTERNAL_DEVICE_SPECIFIC] = process_external_dev,
 };
 
 static section_t section;
@@ -460,6 +463,38 @@
     return;
 }
 
+static void process_external_dev(const XML_Char **attr)
+{
+    snd_device_t snd_device = SND_DEVICE_NONE;
+
+    if (strcmp(attr[0], "name") != 0) {
+        ALOGE("%s: 'name' not found", __func__);
+        goto done;
+    }
+
+    snd_device = platform_get_snd_device_index((char *)attr[1]);
+    if (snd_device < 0) {
+        ALOGE("%s: Device %s in %s not found, no ACDB ID set!",
+              __func__, (char *)attr[3], PLATFORM_INFO_XML_PATH);
+        goto done;
+    }
+
+    if (strcmp(attr[2], "usbid") != 0) {
+        ALOGE("%s: 'usbid' not found", __func__);
+        goto done;
+    }
+
+    if (strcmp(attr[4], "acdb_id") != 0) {
+        ALOGE("%s: 'acdb_id' not found", __func__);
+        goto done;
+    }
+
+    platform_add_external_specific_device(snd_device, (char *)attr[3], atoi((char *)attr[5]));
+
+done:
+    return;
+}
+
 static void process_audio_effect(const XML_Char **attr, effect_type_t effect_type)
 {
     int index;
@@ -1204,6 +1239,11 @@
             section = CUSTOM_MTMX_PARAM_COEFFS;
             section_process_fn fn = section_table[section];
             fn(attr);
+        } else if (strcmp(tag_name, "external_specific_dev") == 0) {
+            section = EXTERNAL_DEVICE_SPECIFIC;
+        } else if (strcmp(tag_name, "ext_device") == 0) {
+            section_process_fn fn = section_table[section];
+            fn(attr);
         }
     } else {
         if(strcmp(tag_name, "config_params") == 0) {
@@ -1256,6 +1296,8 @@
         section = ROOT;
     } else if (strcmp(tag_name, "snd_devices") == 0) {
         section = ROOT;
+    } else if (strcmp(tag_name, "external_specific_dev") == 0) {
+        section = ROOT;
     } else if (strcmp(tag_name, "input_snd_device") == 0) {
         section = SND_DEVICES;
     } else if (strcmp(tag_name, "input_snd_device_mic_mapping") == 0) {