From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Function adds audio_open_output_stream() and sets dummy callbacks.
---
android/hal-sco.c | 179 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 176 insertions(+), 3 deletions(-)
diff --git a/android/hal-sco.c b/android/hal-sco.c
index 5a70aba..9815c14 100644
--- a/android/hal-sco.c
+++ b/android/hal-sco.c
@@ -25,22 +25,195 @@
#include "hal-log.h"
+#define AUDIO_STREAM_DEFAULT_RATE 44100
+#define AUDIO_STREAM_DEFAULT_FORMAT AUDIO_FORMAT_PCM_16_BIT
+
+#define OUT_BUFFER_SIZE 2560
+
+struct hsp_audio_config {
+ uint32_t rate;
+ uint32_t channels;
+ audio_format_t format;
+};
+
+struct sco_stream_out {
+ struct audio_stream_out stream;
+ struct hsp_audio_config cfg;
+};
+
struct sco_audio_dev {
struct audio_hw_device dev;
- struct a2dp_stream_out *out;
+ struct sco_stream_out *out;
};
+/* Audio stream functions */
+
+static ssize_t out_write(struct audio_stream_out *stream, const void *buffer,
+ size_t bytes)
+{
+ /* write data */
+
+ return bytes;
+}
+
+static uint32_t out_get_sample_rate(const struct audio_stream *stream)
+{
+ struct sco_stream_out *out = (struct sco_stream_out *) stream;
+
+ DBG("rate %u", out->cfg.rate);
+
+ return out->cfg.rate;
+}
+
+static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+ DBG("rate %u", rate);
+
+ return 0;
+}
+
+static size_t out_get_buffer_size(const struct audio_stream *stream)
+{
+ DBG("buf size %u", OUT_BUFFER_SIZE);
+
+ return OUT_BUFFER_SIZE;
+}
+
+static uint32_t out_get_channels(const struct audio_stream *stream)
+{
+ DBG("");
+
+ /* AudioFlinger can only provide stereo stream, so we return it here and
+ * later we'll downmix this to mono in case codec requires it
+ */
+ return AUDIO_CHANNEL_OUT_STEREO;
+}
+
+static audio_format_t out_get_format(const struct audio_stream *stream)
+{
+ struct sco_stream_out *out = (struct sco_stream_out *) stream;
+
+ DBG("");
+
+ return out->cfg.format;
+}
+
+static int out_set_format(struct audio_stream *stream, audio_format_t format)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int out_standby(struct audio_stream *stream)
+{
+ DBG("");
+
+ return 0;
+}
+
+static int out_dump(const struct audio_stream *stream, int fd)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+ DBG("%s", kvpairs);
+
+ return 0;
+}
+
+static char *out_get_parameters(const struct audio_stream *stream,
+ const char *keys)
+{
+ DBG("");
+
+ return strdup("");
+}
+
+static uint32_t out_get_latency(const struct audio_stream_out *stream)
+{
+ DBG("");
+
+ return 0;
+}
+
+static int out_set_volume(struct audio_stream_out *stream, float left,
+ float right)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int out_get_render_position(const struct audio_stream_out *stream,
+ uint32_t *dsp_frames)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int out_add_audio_effect(const struct audio_stream *stream,
+ effect_handle_t effect)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
+static int out_remove_audio_effect(const struct audio_stream *stream,
+ effect_handle_t effect)
+{
+ DBG("");
+
+ return -ENOSYS;
+}
+
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)
-
{
+ struct sco_audio_dev *adev = (struct sco_audio_dev *) dev;
+ struct sco_stream_out *out;
+
DBG("");
- return -EINVAL;
+ out = calloc(1, sizeof(struct sco_stream_out));
+ if (!out)
+ return -ENOMEM;
+
+ out->stream.common.get_sample_rate = out_get_sample_rate;
+ out->stream.common.set_sample_rate = out_set_sample_rate;
+ out->stream.common.get_buffer_size = out_get_buffer_size;
+ out->stream.common.get_channels = out_get_channels;
+ out->stream.common.get_format = out_get_format;
+ out->stream.common.set_format = out_set_format;
+ out->stream.common.standby = out_standby;
+ out->stream.common.dump = out_dump;
+ out->stream.common.set_parameters = out_set_parameters;
+ out->stream.common.get_parameters = out_get_parameters;
+ out->stream.common.add_audio_effect = out_add_audio_effect;
+ out->stream.common.remove_audio_effect = out_remove_audio_effect;
+ out->stream.get_latency = out_get_latency;
+ out->stream.set_volume = out_set_volume;
+ out->stream.write = out_write;
+ out->stream.get_render_position = out_get_render_position;
+
+ out->cfg.format = AUDIO_STREAM_DEFAULT_FORMAT;
+ out->cfg.channels = AUDIO_CHANNEL_OUT_MONO;
+ out->cfg.rate = AUDIO_STREAM_DEFAULT_RATE;
+
+ *stream_out = &out->stream;
+ adev->out = out;
+
+ return 0;
}
static void audio_close_output_stream(struct audio_hw_device *dev,
--
1.8.3.2
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