hal: add support for source tracking feature
Fluence module on ADSP is upgraded to support source
tracking, sound focus and audio zoom features. This
change adds support for the same in audio HAL and is
needed to support the features end-to-end.
Source Tracking is the capability to identify the
source of speech. Sound Focus is the capability to
configure which sectors in the 360 degrees plane to
listen to. Audio Zoom is the capability to combine
the sound focus with other technologies so that a user
can listen in on a particular source in a scene.
Change-Id: I019b22d6541e6d1a10552d808c3320a998b86e48
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
old mode 100755
new mode 100644
index 05953fb..635bcb7
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
* Not a Contribution.
*
* Copyright (C) 2013 The Android Open Source Project
@@ -3648,3 +3648,54 @@
end:
return ret;
}
+
+/*
+ * This is a lookup table to map android audio input device to audio h/w interface (backend).
+ * The table can be extended for other input devices by adding appropriate entries.
+ * Also the audio interface for a particular input device can be overriden by adding
+ * corresponding entry in audio_platform_info.xml file.
+ */
+struct audio_device_to_audio_interface audio_device_to_interface_table[] = {
+ {AUDIO_DEVICE_IN_BUILTIN_MIC, ENUM_TO_STRING(AUDIO_DEVICE_IN_BUILTIN_MIC), "SLIMBUS_0"},
+ {AUDIO_DEVICE_IN_BACK_MIC, ENUM_TO_STRING(AUDIO_DEVICE_IN_BACK_MIC), "SLIMBUS_0"},
+};
+
+int audio_device_to_interface_table_len =
+ sizeof(audio_device_to_interface_table) / sizeof(audio_device_to_interface_table[0]);
+
+int platform_set_audio_device_interface(const char *device_name, const char *intf_name)
+{
+ int ret = 0;
+ int i;
+
+ if (device_name == NULL || intf_name == NULL) {
+ ALOGE("%s: Invalid input", __func__);
+
+ ret = -EINVAL;
+ goto done;
+ }
+
+ ALOGD("%s: Enter, device name:%s, intf name:%s", __func__, device_name, intf_name);
+
+ size_t device_name_len = strlen(device_name);
+ for (i = 0; i < audio_device_to_interface_table_len; i++) {
+ char* name = audio_device_to_interface_table[i].device_name;
+ size_t name_len = strlen(name);
+ if ((name_len == device_name_len) &&
+ (strncmp(device_name, name, name_len) == 0)) {
+ ALOGD("%s: Matched device name:%s, overwrite intf name with %s",
+ __func__, device_name, intf_name);
+
+ strlcpy(audio_device_to_interface_table[i].interface_name, intf_name,
+ sizeof(audio_device_to_interface_table[i].interface_name));
+ goto done;
+ }
+ }
+ ALOGE("%s: Could not find matching device name %s",
+ __func__, device_name);
+
+ ret = -EINVAL;
+
+done:
+ return ret;
+}
diff --git a/hal/msm8974/platform.h b/hal/msm8974/platform.h
index c7d7f0e..552dd41 100644
--- a/hal/msm8974/platform.h
+++ b/hal/msm8974/platform.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
* Not a Contribution.
*
* Copyright (C) 2013 The Android Open Source Project
@@ -360,4 +360,12 @@
*/
#define DEVICE_PARAM_MUTE_ID 0
#define DEVICE_PARAM_LATENCY_ID 1
+
+#define ENUM_TO_STRING(X) #X
+
+struct audio_device_to_audio_interface {
+ audio_devices_t device;
+ char device_name[100];
+ char interface_name[100];
+};
#endif // QCOM_AUDIO_PLATFORM_H