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/*
* avsystem
*
* Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
*
* Contact: Jonghyuk Choi <jhchoi.choi@samsung.com>
*
* 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 <alsa/asoundlib.h>
#include "avsys-audio-alsa.h"
#include "avsys-types.h"
#include "avsys-error.h"
#include "avsys-debug.h"
#if defined(_MMFW_I386_ALL_SIMULATOR)
#define AIF2_DEVICE_NAME "default"
#define AIF3_DEVICE_NAME "default"
#else
#define AIF2_DEVICE_NAME "AIF2"
#define AIF3_DEVICE_NAME "AIF3"
#endif
int avsys_audio_alsa_open_AIF_device(const int AIF_type, avsys_audio_alsa_aif_handle_t *handle)
{
snd_pcm_t *ahandle = NULL;
int err = -1;
char dev_name[16] = { 0, };
snd_pcm_stream_t stream = SND_PCM_STREAM_PLAYBACK;
avsys_info(AVAUDIO, "%s\n", __func__);
if (!handle)
return AVSYS_STATE_ERR_NULL_POINTER;
memset(dev_name, '\0', sizeof(dev_name));
switch (AIF_type) {
case AIF2_CAPTURE:
strncpy(dev_name, AIF2_DEVICE_NAME, sizeof(dev_name) - 1);
stream = SND_PCM_STREAM_CAPTURE;
break;
case AIF2_PLAYBACK:
strncpy(dev_name, AIF2_DEVICE_NAME, sizeof(dev_name) - 1);
stream = SND_PCM_STREAM_PLAYBACK;
break;
case AIF3_CAPTURE:
strncpy(dev_name, AIF3_DEVICE_NAME, sizeof(dev_name) - 1);
stream = SND_PCM_STREAM_CAPTURE;
break;
case AIF3_PLAYBACK:
strncpy(dev_name, AIF3_DEVICE_NAME, sizeof(dev_name) - 1);
stream = SND_PCM_STREAM_PLAYBACK;
break;
default:
avsys_critical_r(AVAUDIO, "Invalid AIF device %d\n", AIF_type);
return AVSYS_STATE_ERR_INVALID_MODE;
break;
}
#if !defined(_MMFW_I386_ALL_SIMULATOR)
err = snd_pcm_open(&ahandle, dev_name, stream, 0);
#else
avsys_warning_r(AVAUDIO, "Skip real device open in SDK\n");
err = 0; /* set fake return value */
#endif
if (err < 0) {
avsys_error_r(AVAUDIO, "unable to open AIF device: %s\n", snd_strerror(err));
return AVSYS_STATE_ERR_INTERNAL;
}
handle->alsa_handle = (void *)ahandle;
handle->type = AIF_type;
return AVSYS_STATE_SUCCESS;
}
int avsys_audio_alsa_close_AIF_device(avsys_audio_alsa_aif_handle_t* handle)
{
int err = 0;
snd_pcm_t *ahandle = NULL;
avsys_info(AVAUDIO, "%s\n", __func__);
#if defined(_MMFW_I386_ALL_SIMULATOR)
avsys_warning(AVAUDIO, "Skip close call device in SDK");
return AVSYS_STATE_SUCCESS;
#endif
if (!handle)
return AVSYS_STATE_ERR_NULL_POINTER;
ahandle = (snd_pcm_t *)handle->alsa_handle;
if (!ahandle) {
avsys_error_r(AVAUDIO, "[%s] alsa handle is null\n", __func__);
return AVSYS_STATE_ERR_NULL_POINTER;
}
err = snd_pcm_close(ahandle);
if (err < 0) {
avsys_critical_r(AVAUDIO, "unable to close pcm device: %s\n", snd_strerror(err));
return AVSYS_STATE_ERR_INTERNAL;
}
handle->alsa_handle = NULL;
return AVSYS_STATE_SUCCESS;
}
int avsys_audio_alsa_set_AIF_params(avsys_audio_alsa_aif_handle_t *handle)
{
#if defined(_MMFW_I386_ALL_SIMULATOR)
return AVSYS_STATE_SUCCESS;
#else
int err = 0;
snd_pcm_t *ahandle = NULL;
snd_pcm_hw_params_t *params;
unsigned int val;
int dir;
avsys_info(AVAUDIO, "%s\n", __func__);
if (!handle)
return AVSYS_STATE_ERR_NULL_POINTER;
ahandle = (snd_pcm_t *)handle->alsa_handle;
if (!ahandle)
return AVSYS_STATE_ERR_NULL_POINTER;
/* Allocate a hardware parameters object. */
snd_pcm_hw_params_alloca(¶ms);
/* Fill it in with default values. */
snd_pcm_hw_params_any(ahandle, params);
/* Set the desired hardware parameters. */
/* Interleaved mode */
snd_pcm_hw_params_set_access(ahandle, params, SND_PCM_ACCESS_RW_INTERLEAVED);
err = snd_pcm_hw_params(ahandle, params);
if (err < 0) {
avsys_error_r(AVAUDIO, "snd_pcm_hw_params() : failed! - %s\n", snd_strerror(err));
return AVSYS_STATE_ERR_INTERNAL;
}
/* Dump current param */
snd_pcm_hw_params_get_access(params, (snd_pcm_access_t *) &val);
avsys_info(AVAUDIO, "access type = %s\n", snd_pcm_access_name((snd_pcm_access_t)val));
snd_pcm_hw_params_get_format(params, &val);
avsys_info(AVAUDIO, "format = '%s' (%s)\n",
snd_pcm_format_name((snd_pcm_format_t)val),
snd_pcm_format_description((snd_pcm_format_t)val));
snd_pcm_hw_params_get_subformat(params, (snd_pcm_subformat_t *)&val);
avsys_info(AVAUDIO, "subformat = '%s' (%s)\n",
snd_pcm_subformat_name((snd_pcm_subformat_t)val),
snd_pcm_subformat_description((snd_pcm_subformat_t)val));
snd_pcm_hw_params_get_channels(params, &val);
avsys_info(AVAUDIO, "channels = %d\n", val);
snd_pcm_hw_params_get_rate(params, &val, &dir);
avsys_info(AVAUDIO, "rate = %d bps\n", val);
return AVSYS_STATE_SUCCESS;
#endif
}
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