1 files changed, 143 insertions, 0 deletions
diff --git a/hal/audio_extn/audio_amplifier.c b/hal/audio_extn/audio_amplifier.c
new file mode 100644
index 00000000..043c10f3
--- /dev/null
+++ b/hal/audio_extn/audio_amplifier.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2016 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "audio_amplifier"
+
+#include <log/log.h>
+#include <dlfcn.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "audio_hw.h"
+#include "platform.h"
+
+struct amplifier_data {
+    struct audio_device* adev;
+    amplifier_device_t* hw;
+};
+
+struct amplifier_data amp;
+
+int amplifier_open(void* adev) {
+    int rc;
+    amplifier_module_t* module;
+    amp.adev = (struct audio_device*)adev;
+
+    rc = hw_get_module(AMPLIFIER_HARDWARE_MODULE_ID, (const hw_module_t**)&module);
+    if (rc) {
+        ALOGV("%s: Failed to obtain reference to amplifier module: %s\n", __func__, strerror(-rc));
+        return -ENODEV;
+    }
+
+    rc = amplifier_device_open((const hw_module_t*)module, &amp.hw);
+    if (rc) {
+        ALOGV("%s: Failed to open amplifier hardware device: %s\n", __func__, strerror(-rc));
+        amp.hw = NULL;
+
+        return -ENODEV;
+    }
+
+    return 0;
+}
+
+int amplifier_set_input_devices(uint32_t devices) {
+    if (amp.hw && amp.hw->set_input_devices) return amp.hw->set_input_devices(amp.hw, devices);
+
+    return 0;
+}
+
+int amplifier_set_output_devices(uint32_t devices) {
+    if (amp.hw && amp.hw->set_output_devices) return amp.hw->set_output_devices(amp.hw, devices);
+
+    return 0;
+}
+
+int amplifier_enable_devices(uint32_t devices, bool enable) {
+    bool is_output = devices < SND_DEVICE_OUT_END;
+
+    if (amp.hw && amp.hw->enable_output_devices && is_output)
+        return amp.hw->enable_output_devices(amp.hw, devices, enable);
+
+    if (amp.hw && amp.hw->enable_input_devices && !is_output)
+        return amp.hw->enable_input_devices(amp.hw, devices, enable);
+
+    return 0;
+}
+
+int amplifier_set_mode(audio_mode_t mode) {
+    if (amp.hw && amp.hw->set_mode) return amp.hw->set_mode(amp.hw, mode);
+
+    return 0;
+}
+
+int amplifier_output_stream_start(struct audio_stream_out* stream, bool offload) {
+    if (amp.hw && amp.hw->output_stream_start)
+        return amp.hw->output_stream_start(amp.hw, stream, offload);
+
+    return 0;
+}
+
+int amplifier_input_stream_start(struct audio_stream_in* stream) {
+    if (amp.hw && amp.hw->input_stream_start) return amp.hw->input_stream_start(amp.hw, stream);
+
+    return 0;
+}
+
+int amplifier_output_stream_standby(struct audio_stream_out* stream) {
+    if (amp.hw && amp.hw->output_stream_standby)
+        return amp.hw->output_stream_standby(amp.hw, stream);
+
+    return 0;
+}
+
+int amplifier_input_stream_standby(struct audio_stream_in* stream) {
+    if (amp.hw && amp.hw->input_stream_standby) return amp.hw->input_stream_standby(amp.hw, stream);
+
+    return 0;
+}
+
+int amplifier_set_parameters(struct str_parms* parms) {
+    if (amp.hw && amp.hw->set_parameters) return amp.hw->set_parameters(amp.hw, parms);
+
+    return 0;
+}
+
+int amplifier_out_set_parameters(struct str_parms* parms) {
+    if (amp.hw && amp.hw->out_set_parameters) return amp.hw->out_set_parameters(amp.hw, parms);
+
+    return 0;
+}
+
+int amplifier_in_set_parameters(struct str_parms* parms) {
+    if (amp.hw && amp.hw->in_set_parameters) return amp.hw->in_set_parameters(amp.hw, parms);
+
+    return 0;
+}
+
+int amplifier_set_feedback(void* adev, uint32_t devices, bool enable) {
+    amp.adev = (struct audio_device*)adev;
+    if (amp.hw && amp.hw->set_feedback)
+        return amp.hw->set_feedback(amp.hw, amp.adev, devices, enable);
+    return 0;
+}
+
+int amplifier_close(void) {
+    if (amp.hw) amplifier_device_close(amp.hw);
+
+    amp.hw = NULL;
+
+    return 0;
+}