509 lines
No EOL
18 KiB
C
509 lines
No EOL
18 KiB
C
// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "bta/bta_hf_client_co.h"
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#include "hci/hci_audio.h"
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#include "btc_hf_client.h"
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#include "osi/allocator.h"
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#include <string.h>
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#if (BTA_HF_INCLUDED == TRUE)
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#if (BTM_SCO_HCI_INCLUDED == TRUE)
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#include "oi_codec_sbc.h"
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#include "oi_status.h"
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#include "sbc_encoder.h"
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#if (PLC_INCLUDED == TRUE)
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#include "sbc_plc.h"
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typedef struct {
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bool first_good_frame_found;
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sbc_plc_state_t plc_state;
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int16_t sbc_plc_out[SBC_FS];
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} bta_hf_ct_plc_t;
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#if HFP_DYNAMIC_MEMORY == FALSE
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static bta_hf_ct_plc_t bta_hf_ct_plc;
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#else
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static bta_hf_ct_plc_t *bta_hf_ct_plc_ptr;
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#define bta_hf_ct_plc (*bta_hf_ct_plc_ptr)
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#endif
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#endif ///(PLC_INCLUDED == TRUE)
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#define HF_SBC_DEC_CONTEXT_DATA_LEN (CODEC_DATA_WORDS(1, SBC_CODEC_FAST_FILTER_BUFFERS))
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#define HF_SBC_DEC_RAW_DATA_SIZE 240
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#define HF_SBC_ENC_RAW_DATA_SIZE 240
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/* BTA-HF-CO control block to map bdaddr to BTA handle */
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typedef struct
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{
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OI_CODEC_SBC_DECODER_CONTEXT decoder_context;
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OI_UINT32 decoder_context_data[HF_SBC_DEC_CONTEXT_DATA_LEN];
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OI_INT16 decode_raw_data[HF_SBC_DEC_RAW_DATA_SIZE];
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SBC_ENC_PARAMS encoder;
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UINT8 sequence_number;
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bool is_bad_frame;
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bool decode_first_pkt;
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OI_BYTE decode_msbc_data[BTM_MSBC_FRAME_SIZE];
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bool encode_first_pkt;
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OI_BYTE encode_msbc_data[BTM_MSBC_FRAME_SIZE];
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} bta_hf_client_co_cb_t;
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#if HFP_DYNAMIC_MEMORY == FALSE
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static bta_hf_client_co_cb_t bta_hf_client_co_cb;
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#else
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static bta_hf_client_co_cb_t *bta_hf_client_co_cb_ptr;
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#define bta_hf_client_co_cb (*bta_hf_client_co_cb_ptr)
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#endif /* HFP_DYNAMIC_MEMORY == FALSE */
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static UINT8 hf_air_mode = BTM_SCO_AIR_MODE_UNKNOWN;
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static UINT8 hf_inout_pkt_size = 0;
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/*******************************************************************************
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**
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** Function bta_hf_client_co_audio_state
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**
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** Description This function is called by the HF CLIENT before the audio connection
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** is brought up, after it comes up, and after it goes down.
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**
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** Parameters handle - handle of the AG instance
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** state - Audio state
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** codec - if WBS support is compiled in, codec to going to be used is provided
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** and when in SCO_STATE_SETUP, BTM_I2SPCMConfig() must be called with
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** the correct platform parameters.
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** in the other states codec type should not be ignored
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hf_client_co_audio_state(UINT16 handle, UINT8 state, tBTA_HFP_PEER_CODEC codec)
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{
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switch (state)
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{
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case SCO_STATE_ON:
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case SCO_STATE_OFF:
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case SCO_STATE_OFF_TRANSFER:
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case SCO_STATE_SETUP:
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default:
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break;
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}
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}
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/*******************************************************************************
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**
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** Function bta_hf_client_sco_co_init
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**
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** Description This function can be used by the phone to initialize audio
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** codec or for other initialization purposes before SCO connection
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** is opened.
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**
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**
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** Returns Void.
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**
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*******************************************************************************/
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tBTA_HFP_SCO_ROUTE_TYPE bta_hf_client_sco_co_init(UINT32 rx_bw, UINT32 tx_bw,
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tBTA_HFP_CODEC_INFO *p_codec_info, UINT8 app_id)
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{
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APPL_TRACE_EVENT("%s rx_bw %d, tx_bw %d, codec %d", __FUNCTION__, rx_bw, tx_bw,
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p_codec_info->codec_type);
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return BTA_HFP_SCO_ROUTE_HCI;
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}
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/*******************************************************************************
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**
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** Function bta_hf_dec_init
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**
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** Description Initialize decoding task
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**
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** Returns void
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**
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*******************************************************************************/
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static void bta_hf_dec_init(void) {
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#if (PLC_INCLUDED == TRUE)
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sbc_plc_init(&(bta_hf_ct_plc.plc_state));
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#endif ///(PLC_INCLUDED == TRUE)
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OI_STATUS status;
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status = OI_CODEC_SBC_DecoderReset(&bta_hf_client_co_cb.decoder_context, bta_hf_client_co_cb.decoder_context_data,
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HF_SBC_DEC_CONTEXT_DATA_LEN * sizeof(OI_UINT32), 1, 1, FALSE, TRUE);
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if (!OI_SUCCESS(status)) {
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APPL_TRACE_ERROR("OI_CODEC_SBC_DecoderReset failed with error code %d\n", status);
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}
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}
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/*******************************************************************************
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**
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** Function bta_hf_enc_init
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**
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** Description Initialize encoding task
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**
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** Returns void
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**
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*******************************************************************************/
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static void bta_hf_enc_init(void) {
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bta_hf_client_co_cb.sequence_number = 0;
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bta_hf_client_co_cb.decode_first_pkt = true;
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bta_hf_client_co_cb.encode_first_pkt = true;
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bta_hf_client_co_cb.is_bad_frame = false;
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bta_hf_client_co_cb.encoder.sbc_mode = SBC_MODE_MSBC;
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bta_hf_client_co_cb.encoder.s16NumOfBlocks = 15;
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bta_hf_client_co_cb.encoder.s16NumOfSubBands = 8;
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bta_hf_client_co_cb.encoder.s16AllocationMethod = SBC_LOUDNESS;
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bta_hf_client_co_cb.encoder.s16BitPool = 26;
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bta_hf_client_co_cb.encoder.s16ChannelMode = SBC_MONO;
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bta_hf_client_co_cb.encoder.s16NumOfChannels = 1;
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bta_hf_client_co_cb.encoder.s16SamplingFreq = SBC_sf16000;
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SBC_Encoder_Init(&(bta_hf_client_co_cb.encoder));
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}
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/*******************************************************************************
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**
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** Function bta_hf_client_sco_co_open
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**
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** Description This function is executed when a SCO connection is open.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hf_client_sco_co_open(UINT16 handle, UINT8 air_mode, UINT8 inout_pkt_size, UINT16 event)
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{
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APPL_TRACE_EVENT("%s hdl %x, pkt_sz %u, event %u", __FUNCTION__, handle,
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inout_pkt_size, event);
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hf_air_mode = air_mode;
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hf_inout_pkt_size = inout_pkt_size;
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if (air_mode == BTM_SCO_AIR_MODE_TRANSPNT) {
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#if (HFP_DYNAMIC_MEMORY == TRUE)
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bta_hf_client_co_cb_ptr = osi_calloc(sizeof(bta_hf_client_co_cb_t));
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if (!bta_hf_client_co_cb_ptr) {
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APPL_TRACE_ERROR("%s allocate failed", __FUNCTION__);
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goto error_exit;
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}
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#if (PLC_INCLUDED == TRUE)
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bta_hf_ct_plc_ptr = (bta_hf_ct_plc_t *)osi_calloc(sizeof(bta_hf_ct_plc_t));
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if (!bta_hf_ct_plc_ptr) {
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APPL_TRACE_ERROR("%s malloc fail.", __FUNCTION__);
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goto error_exit;
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}
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#endif ///(PLC_INCLUDED == TRUE)
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#endif /// (HFP_DYNAMIC_MEMORY == TRUE)
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bta_hf_dec_init();
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bta_hf_enc_init();
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return;
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} else {
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return;
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// Nothing to do
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}
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#if (HFP_DYNAMIC_MEMORY == TRUE)
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error_exit:;
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hf_air_mode = BTM_SCO_AIR_MODE_UNKNOWN;
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hf_inout_pkt_size = 0;
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if (bta_hf_client_co_cb_ptr) {
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osi_free(bta_hf_client_co_cb_ptr);
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bta_hf_client_co_cb_ptr = NULL;
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}
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#if (PLC_INCLUDED == TRUE)
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if (bta_hf_ct_plc_ptr) {
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osi_free(bta_hf_ct_plc_ptr);
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bta_hf_ct_plc_ptr = NULL;
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}
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#endif ///(PLC_INCLUDED == TRUE)
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#endif /// (HFP_DYNAMIC_MEMORY == TRUE)
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return;
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}
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/*******************************************************************************
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**
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** Function bta_hf_client_sco_co_close
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**
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** Description This function is called when a SCO connection is closed
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_hf_client_sco_co_close(void)
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{
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APPL_TRACE_EVENT("%s", __FUNCTION__);
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if (hf_air_mode == BTM_SCO_AIR_MODE_TRANSPNT) {
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#if (PLC_INCLUDED == TRUE)
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sbc_plc_deinit(&(bta_hf_ct_plc.plc_state));
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bta_hf_ct_plc.first_good_frame_found = FALSE;
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#if (HFP_DYNAMIC_MEMORY == TRUE)
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osi_free(bta_hf_ct_plc_ptr);
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bta_hf_ct_plc_ptr = NULL;
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#endif /// (HFP_DYNAMIC_MEMORY == TRUE)
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#endif ///(PLC_INCLUDED == TRUE)
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#if (HFP_DYNAMIC_MEMORY == TRUE)
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osi_free(bta_hf_client_co_cb_ptr);
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bta_hf_client_co_cb_ptr = NULL;
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#endif /* HFP_DYNAMIC_MEMORY == TRUE */
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} else {
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// Nothing to do
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}
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hf_air_mode = BTM_SCO_AIR_MODE_UNKNOWN;
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hf_inout_pkt_size = 0;
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}
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/*******************************************************************************
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**
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** Function bta_hf_client_h2_header
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**
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** Description This function is called to fill in H2 header
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**
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** Returns void
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**
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*******************************************************************************/
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static void bta_hf_client_h2_header(UINT16 *p_buf)
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{
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// H2: Header with synchronization word and sequence number
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#define BTA_HF_H2_HEADER 0x0801
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#define BTA_HF_H2_HEADER_BIT0_MASK (1 << 0)
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#define BTA_HF_H2_HEADER_BIT1_MASK (1 << 1)
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#define BTA_HF_H2_HEADER_SN0_BIT_OFFSET1 12
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#define BTA_HF_H2_HEADER_SN0_BIT_OFFSET2 13
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#define BTA_HF_H2_HEADER_SN1_BIT_OFFSET1 14
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#define BTA_HF_H2_HEADER_SN1_BIT_OFFSET2 15
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UINT16 h2_header = BTA_HF_H2_HEADER;
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UINT8 h2_header_sn0 = bta_hf_client_co_cb.sequence_number & BTA_HF_H2_HEADER_BIT0_MASK;
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UINT8 h2_header_sn1 = bta_hf_client_co_cb.sequence_number & BTA_HF_H2_HEADER_BIT1_MASK;
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h2_header |= (h2_header_sn0 << BTA_HF_H2_HEADER_SN0_BIT_OFFSET1
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| h2_header_sn0 << BTA_HF_H2_HEADER_SN0_BIT_OFFSET2
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| h2_header_sn1 << (BTA_HF_H2_HEADER_SN1_BIT_OFFSET1 - 1)
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| h2_header_sn1 << (BTA_HF_H2_HEADER_SN1_BIT_OFFSET2 - 1)
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);
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bta_hf_client_co_cb.sequence_number++;
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*p_buf = h2_header;
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}
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/*******************************************************************************
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**
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** Function bta_hf_client_sco_co_out_data
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**
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** Description This function is called to send SCO data over HCI.
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**
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** Returns number of bytes got from application
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**
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*******************************************************************************/
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uint32_t bta_hf_client_sco_co_out_data(UINT8 *p_buf)
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{
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if (hf_air_mode == BTM_SCO_AIR_MODE_CVSD) {
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// CVSD
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uint32_t hf_raw_pkt_size = hf_inout_pkt_size;
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return btc_hf_client_outgoing_data_cb_to_app(p_buf, hf_raw_pkt_size);
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} else if (hf_air_mode == BTM_SCO_AIR_MODE_TRANSPNT) {
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// mSBC
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if (hf_inout_pkt_size == BTM_MSBC_FRAME_SIZE / 2) {
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if (bta_hf_client_co_cb.encode_first_pkt){
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UINT32 size = btc_hf_client_outgoing_data_cb_to_app((UINT8 *)bta_hf_client_co_cb.encoder.as16PcmBuffer, HF_SBC_ENC_RAW_DATA_SIZE);
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if (size != HF_SBC_ENC_RAW_DATA_SIZE){
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return 0;
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}
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bta_hf_client_h2_header((UINT16 *)bta_hf_client_co_cb.encode_msbc_data);
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bta_hf_client_co_cb.encoder.pu8Packet = bta_hf_client_co_cb.encode_msbc_data + 2;
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SBC_Encoder(&bta_hf_client_co_cb.encoder);
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memcpy(p_buf, bta_hf_client_co_cb.encode_msbc_data, hf_inout_pkt_size);
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bta_hf_client_co_cb.encode_first_pkt = !bta_hf_client_co_cb.encode_first_pkt;
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return hf_inout_pkt_size;
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} else {
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memcpy(p_buf, bta_hf_client_co_cb.encode_msbc_data + hf_inout_pkt_size, hf_inout_pkt_size);
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bta_hf_client_co_cb.encode_first_pkt = !bta_hf_client_co_cb.encode_first_pkt;
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return hf_inout_pkt_size;
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}
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} else if (hf_inout_pkt_size == BTM_MSBC_FRAME_SIZE) {
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UINT32 size = btc_hf_client_outgoing_data_cb_to_app((UINT8 *)bta_hf_client_co_cb.encoder.as16PcmBuffer, HF_SBC_ENC_RAW_DATA_SIZE);
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if (size != HF_SBC_ENC_RAW_DATA_SIZE){
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return 0;
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}
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bta_hf_client_h2_header((UINT16 *)p_buf);
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bta_hf_client_co_cb.encoder.pu8Packet = p_buf + 2;
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SBC_Encoder(&bta_hf_client_co_cb.encoder);
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return hf_inout_pkt_size;
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} else {
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//Never run to here.
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}
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} else {
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APPL_TRACE_ERROR("%s invaild air mode: %d", __FUNCTION__, hf_air_mode);
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}
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return 0;
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}
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/*******************************************************************************
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**
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** Function bta_hf_client_decode_msbc_frame
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**
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** Description This function is called decode a mSBC frame
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**
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** Returns void
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**
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*******************************************************************************/
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static void bta_hf_client_decode_msbc_frame(UINT8 **data, UINT8 *length, BOOLEAN is_bad_frame){
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OI_STATUS status;
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const OI_BYTE *zero_signal_frame_data;
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UINT8 zero_signal_frame_len = BTM_MSBC_FRAME_DATA_SIZE;
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UINT32 sbc_raw_data_size = HF_SBC_DEC_RAW_DATA_SIZE;
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if (is_bad_frame){
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status = OI_CODEC_SBC_CHECKSUM_MISMATCH;
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} else {
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status = OI_CODEC_SBC_DecodeFrame(&bta_hf_client_co_cb.decoder_context, (const OI_BYTE **)data,
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(OI_UINT32 *)length,
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(OI_INT16 *)bta_hf_client_co_cb.decode_raw_data,
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(OI_UINT32 *)&sbc_raw_data_size);
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}
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// PLC_INCLUDED will be set to TRUE when enabling Wide Band Speech
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#if (PLC_INCLUDED == TRUE)
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switch(status){
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case OI_OK:
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bta_hf_ct_plc.first_good_frame_found = TRUE;
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sbc_plc_good_frame(&(bta_hf_ct_plc.plc_state), (int16_t *)bta_hf_client_co_cb.decode_raw_data, bta_hf_ct_plc.sbc_plc_out);
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case OI_CODEC_SBC_NOT_ENOUGH_HEADER_DATA:
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case OI_CODEC_SBC_NOT_ENOUGH_BODY_DATA:
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case OI_CODEC_SBC_NOT_ENOUGH_AUDIO_DATA:
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break;
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case OI_CODEC_SBC_NO_SYNCWORD:
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case OI_CODEC_SBC_CHECKSUM_MISMATCH:
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if (!bta_hf_ct_plc.first_good_frame_found) {
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break;
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}
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zero_signal_frame_data = sbc_plc_zero_signal_frame();
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sbc_raw_data_size = HF_SBC_DEC_RAW_DATA_SIZE;
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status = OI_CODEC_SBC_DecodeFrame(&bta_hf_client_co_cb.decoder_context, &zero_signal_frame_data,
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(OI_UINT32 *)&zero_signal_frame_len,
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(OI_INT16 *)bta_hf_client_co_cb.decode_raw_data,
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(OI_UINT32 *)&sbc_raw_data_size);
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sbc_plc_bad_frame(&(bta_hf_ct_plc.plc_state), bta_hf_client_co_cb.decode_raw_data, bta_hf_ct_plc.sbc_plc_out);
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APPL_TRACE_DEBUG("bad frame, using PLC to fix it.");
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break;
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case OI_STATUS_INVALID_PARAMETERS:
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// This caused by corrupt frames.
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// The codec apparently does not recover from this.
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// Re-initialize the codec.
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APPL_TRACE_ERROR("Frame decode error: OI_STATUS_INVALID_PARAMETERS");
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if (!OI_SUCCESS(OI_CODEC_SBC_DecoderReset(&bta_hf_client_co_cb.decoder_context, bta_hf_client_co_cb.decoder_context_data,
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HF_SBC_DEC_CONTEXT_DATA_LEN * sizeof(OI_UINT32), 1, 1, FALSE, TRUE))) {
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APPL_TRACE_ERROR("OI_CODEC_SBC_DecoderReset failed with error code %d\n", status);
|
|
}
|
|
break;
|
|
default:
|
|
APPL_TRACE_ERROR("Frame decode error: %d", status);
|
|
break;
|
|
}
|
|
#endif ///(PLC_INCLUDED == TRUE)
|
|
|
|
if (OI_SUCCESS(status)){
|
|
btc_hf_client_incoming_data_cb_to_app((const uint8_t *)(bta_hf_ct_plc.sbc_plc_out), sbc_raw_data_size);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function bta_hf_client_sco_co_in_data
|
|
**
|
|
** Description This function is called to send incoming SCO data to application.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void bta_hf_client_sco_co_in_data(BT_HDR *p_buf, tBTM_SCO_DATA_FLAG status)
|
|
{
|
|
UINT8 *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
UINT8 pkt_size = 0;
|
|
|
|
STREAM_SKIP_UINT16(p);
|
|
STREAM_TO_UINT8 (pkt_size, p);
|
|
|
|
if (hf_air_mode == BTM_SCO_AIR_MODE_CVSD) {
|
|
// CVSD
|
|
if(status != BTM_SCO_DATA_CORRECT){
|
|
APPL_TRACE_DEBUG("%s: not a correct frame(%d).", __func__, status);
|
|
}
|
|
btc_hf_client_incoming_data_cb_to_app(p, pkt_size);
|
|
} else if (hf_air_mode == BTM_SCO_AIR_MODE_TRANSPNT) {
|
|
// mSBC
|
|
UINT8 *data = NULL;
|
|
|
|
if (pkt_size != hf_inout_pkt_size) {
|
|
bta_hf_client_co_cb.is_bad_frame = true;
|
|
}
|
|
if (status != BTM_SCO_DATA_CORRECT) {
|
|
bta_hf_client_co_cb.is_bad_frame = true;
|
|
}
|
|
if (hf_inout_pkt_size == BTM_MSBC_FRAME_SIZE / 2) {
|
|
if (bta_hf_client_co_cb.decode_first_pkt){
|
|
if (!bta_hf_client_co_cb.is_bad_frame){
|
|
memcpy(bta_hf_client_co_cb.decode_msbc_data, p, pkt_size);
|
|
}
|
|
} else {
|
|
if (!bta_hf_client_co_cb.is_bad_frame){
|
|
memcpy(bta_hf_client_co_cb.decode_msbc_data + BTM_MSBC_FRAME_SIZE / 2, p, pkt_size);
|
|
}
|
|
|
|
data = bta_hf_client_co_cb.decode_msbc_data;
|
|
bta_hf_client_decode_msbc_frame(&data, &pkt_size, bta_hf_client_co_cb.is_bad_frame);
|
|
bta_hf_client_co_cb.is_bad_frame = false;
|
|
}
|
|
bta_hf_client_co_cb.decode_first_pkt = !bta_hf_client_co_cb.decode_first_pkt;
|
|
|
|
} else if (hf_inout_pkt_size == BTM_MSBC_FRAME_SIZE) {
|
|
data = p;
|
|
bta_hf_client_decode_msbc_frame(&data, &pkt_size, bta_hf_client_co_cb.is_bad_frame);
|
|
bta_hf_client_co_cb.is_bad_frame = false;
|
|
} else {
|
|
//Never run to here.
|
|
}
|
|
} else {
|
|
APPL_TRACE_ERROR("%s invaild air mode: %d", __FUNCTION__, hf_air_mode);
|
|
}
|
|
}
|
|
|
|
#endif /* #if (BTM_SCO_HCI_INCLUDED == TRUE) */
|
|
|
|
#endif /* #if (BTA_HF_INCLUDED == TRUE) */ |