From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
This adds audio HAL for handling SCO. Following needs to be added to
audio_policy.conf:
sco {
outputs {
sco {
...
devices AUDIO_DEVICE_OUT_ALL_SCO
...
}
}
---
android/Android.mk | 23 ++++++
android/Makefile.am | 15 ++++
android/hal-sco.c | 211 ++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 249 insertions(+)
create mode 100644 android/hal-sco.c
diff --git a/android/Android.mk b/android/Android.mk
index 638a042..942c7ba 100644
--- a/android/Android.mk
+++ b/android/Android.mk
@@ -271,6 +271,29 @@ LOCAL_MODULE := audio.a2dp.default
include $(BUILD_SHARED_LIBRARY)
#
+# SCO audio
+#
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := bluez/android/hal-sco.c
+
+LOCAL_C_INCLUDES = \
+ $(call include-path-for, system-core) \
+ $(call include-path-for, libhardware) \
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils \
+
+LOCAL_CFLAGS := $(BLUEZ_COMMON_CFLAGS)
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := audio.hsp.default
+
+include $(BUILD_SHARED_LIBRARY)
+
+#
# l2cap-test
#
diff --git a/android/Makefile.am b/android/Makefile.am
index 5ab6411..990ce6b 100644
--- a/android/Makefile.am
+++ b/android/Makefile.am
@@ -169,6 +169,21 @@ android_audio_a2dp_default_la_SOURCES = android/audio-msg.h \
android/hardware/hardware.h \
android/system/audio.h
+android_audio_sco_default_la_SOURCES = android/audio-msg.h \
+ android/hal-msg.h \
+ android/hal-sco.c \
+ android/hardware/audio.h \
+ android/hardware/audio_effect.h \
+ android/hardware/hardware.h \
+ android/system/audio.h
+
+android_audio_sco_default_la_CFLAGS = $(AM_CFLAGS) -I$(srcdir)/android
+
+android_audio_sco_default_la_LDFLAGS = $(AM_LDFLAGS) -module -avoid-version \
+ -no-undefined -lrt
+
+plugin_LTLIBRARIES += android/audio.sco.default.la
+
unit_tests += android/test-ipc
android_test_ipc_SOURCES = android/test-ipc.c \
diff --git a/android/hal-sco.c b/android/hal-sco.c
new file mode 100644
index 0000000..5a70aba
--- /dev/null
+++ b/android/hal-sco.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * 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.
+ *
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/audio.h>
+#include <hardware/hardware.h>
+
+#include "hal-log.h"
+
+struct sco_audio_dev {
+ struct audio_hw_device dev;
+ struct a2dp_stream_out *out;
+};
+
+static int audio_open_output_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ audio_output_flags_t flags,
+ struct audio_config *config,
+ struct audio_stream_out **stream_out)
+
+{
+ DBG("");
+
+ return -EINVAL;
+}
+
+static void audio_close_output_stream(struct audio_hw_device *dev,
+ struct audio_stream_out *stream_out)
+{
+ DBG("");
+
+ free(stream_out);
+}
+
+static int audio_set_parameters(struct audio_hw_device *dev,
+ const char *kvpairs)
+{
+ DBG("%s", kvpairs);
+
+ return 0;
+}
+
+static char *audio_get_parameters(const struct audio_hw_device *dev,
+ const char *keys)
+{
+ DBG("");
+
+ return strdup("");
+}
+
+static int audio_init_check(const struct audio_hw_device *dev)
+{
+ DBG("");
+
+ return 0;
+}
+
+static int audio_set_voice_volume(struct audio_hw_device *dev, float volume)
+{
+ DBG("%f", volume);
+
+ return 0;
+}
+
+static int audio_set_master_volume(struct audio_hw_device *dev, float volume)
+{
+ DBG("%f", volume);
+
+ return 0;
+}
+
+static int audio_set_mode(struct audio_hw_device *dev, int mode)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int audio_set_mic_mute(struct audio_hw_device *dev, bool state)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int audio_get_mic_mute(const struct audio_hw_device *dev, bool *state)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static size_t audio_get_input_buffer_size(const struct audio_hw_device *dev,
+ const struct audio_config *config)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int audio_open_input_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ struct audio_config *config,
+ struct audio_stream_in **stream_in)
+{
+ DBG("");
+
+ return 0;
+}
+
+static void audio_close_input_stream(struct audio_hw_device *dev,
+ struct audio_stream_in *stream_in)
+{
+ DBG("");
+
+ free(stream_in);
+}
+
+static int audio_dump(const audio_hw_device_t *device, int fd)
+{
+ DBG("");
+
+ return 0;
+}
+
+static int audio_close(hw_device_t *device)
+{
+ DBG("");
+
+ free(device);
+
+ return 0;
+}
+
+static int audio_open(const hw_module_t *module, const char *name,
+ hw_device_t **device)
+{
+ struct sco_audio_dev *adev;
+
+ DBG("");
+
+ if (strcmp(name, AUDIO_HARDWARE_INTERFACE)) {
+ error("audio: interface %s not matching [%s]", name,
+ AUDIO_HARDWARE_INTERFACE);
+ return -EINVAL;
+ }
+
+ adev = calloc(1, sizeof(struct sco_audio_dev));
+ if (!adev)
+ return -ENOMEM;
+
+ adev->dev.common.tag = HARDWARE_DEVICE_TAG;
+ adev->dev.common.version = AUDIO_DEVICE_API_VERSION_CURRENT;
+ adev->dev.common.module = (struct hw_module_t *) module;
+ adev->dev.common.close = audio_close;
+
+ adev->dev.init_check = audio_init_check;
+ adev->dev.set_voice_volume = audio_set_voice_volume;
+ adev->dev.set_master_volume = audio_set_master_volume;
+ adev->dev.set_mode = audio_set_mode;
+ adev->dev.set_mic_mute = audio_set_mic_mute;
+ adev->dev.get_mic_mute = audio_get_mic_mute;
+ adev->dev.set_parameters = audio_set_parameters;
+ adev->dev.get_parameters = audio_get_parameters;
+ adev->dev.get_input_buffer_size = audio_get_input_buffer_size;
+ adev->dev.open_output_stream = audio_open_output_stream;
+ adev->dev.close_output_stream = audio_close_output_stream;
+ adev->dev.open_input_stream = audio_open_input_stream;
+ adev->dev.close_input_stream = audio_close_input_stream;
+ adev->dev.dump = audio_dump;
+
+ *device = &adev->dev.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t hal_module_methods = {
+ .open = audio_open,
+};
+
+struct audio_module HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .version_major = 1,
+ .version_minor = 0,
+ .id = AUDIO_HARDWARE_MODULE_ID,
+ .name = "HSP Audio HW HAL",
+ .author = "Intel Corporation",
+ .methods = &hal_module_methods,
+ },
+};
--
1.8.3.2
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