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/** @file
* @brief Advance Audio Distribution Profile - SBC Codec header.
*/
/*
* Copyright (c) 2015-2016 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.
*/
#ifndef __BT_A2DP_SBC_H
#define __BT_A2DP_SBC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Sampling Frequency */
#define A2DP_SBC_SAMP_FREQ_16000 BIT(7)
#define A2DP_SBC_SAMP_FREQ_32000 BIT(6)
#define A2DP_SBC_SAMP_FREQ_44100 BIT(5)
#define A2DP_SBC_SAMP_FREQ_48000 BIT(4)
/* Channel Mode */
#define A2DP_SBC_CH_MODE_MONO BIT(3)
#define A2DP_SBC_CH_MODE_DUAL BIT(2)
#define A2DP_SBC_CH_MODE_STREO BIT(1)
#define A2DP_SBC_CH_MODE_JOINT BIT(0)
/* Block Length */
#define A2DP_SBC_BLK_LEN_4 BIT(7)
#define A2DP_SBC_BLK_LEN_8 BIT(6)
#define A2DP_SBC_BLK_LEN_12 BIT(5)
#define A2DP_SBC_BLK_LEN_16 BIT(4)
/* Subbands */
#define A2DP_SBC_SUBBAND_4 BIT(3)
#define A2DP_SBC_SUBBAND_8 BIT(2)
/* Allocation Method */
#define A2DP_SBC_ALLOC_MTHD_SNR BIT(1)
#define A2DP_SBC_ALLOC_MTHD_LOUDNESS BIT(0)
#define BT_A2DP_SBC_SAMP_FREQ(preset) ((preset->config[0] >> 4) & 0x0f)
#define BT_A2DP_SBC_CHAN_MODE(preset) ((preset->config[0]) & 0x0f)
#define BT_A2DP_SBC_BLK_LEN(preset) ((preset->config[1] >> 4) & 0x0f)
#define BT_A2DP_SBC_SUB_BAND(preset) ((preset->config[1] >> 2) & 0x03)
#define BT_A2DP_SBC_ALLOC_MTHD(preset) ((preset->config[1]) & 0x03)
/** @brief SBC Codec */
struct bt_a2dp_codec_sbc_params {
/** First two octets of configuration */
u8_t config[2];
/** Minimum Bitpool Value */
u8_t min_bitpool;
/** Maximum Bitpool Value */
u8_t max_bitpool;
} __packed;
#ifdef __cplusplus
}
#endif
#endif /* __BT_A2DP_SBC_H */