/****************************************************************************** * * Copyright 2015 Broadcom 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. * ******************************************************************************/ #pragma once #include /******************* * SCO Codec Types *******************/ typedef enum { SCO_CODEC_NONE = 0x0000, SCO_CODEC_CVSD = 0x0001, SCO_CODEC_MSBC = 0x0002, } sco_codec_t; typedef enum { SCO_CODEC_CVSD_D1 = 0, ESCO_CODEC_CVSD_S3, ESCO_CODEC_CVSD_S4, ESCO_CODEC_MSBC_T1, ESCO_CODEC_MSBC_T2, } esco_codec_t; #define ESCO_NUM_CODECS 5 // Coding Formats (BT 4.1 or later Assigned numbers) #define ESCO_CODING_FORMAT_ULAW ((uint8_t)0x00) /* u-Law log */ #define ESCO_CODING_FORMAT_ALAW ((uint8_t)0x01) /* A-Law log */ #define ESCO_CODING_FORMAT_CVSD ((uint8_t)0x02) /* CVSD */ #define ESCO_CODING_FORMAT_TRANSPNT ((uint8_t)0x03) /* Transparent */ #define ESCO_CODING_FORMAT_LINEAR ((uint8_t)0x04) /* Linear PCM */ #define ESCO_CODING_FORMAT_MSBC ((uint8_t)0x05) /* MSBC PCM */ #define ESCO_CODING_FORMAT_VS ((uint8_t)0xFF) /* Specifies VSC used */ typedef uint8_t esco_coding_format_t; // PCM Data Formats (BT 4.1 or later Assigned numbers) #define ESCO_PCM_DATA_FORMAT_NA \ ((uint8_t)0x00) /* N/A to coding format in use */ #define ESCO_PCM_DATA_FORMAT_1_COMP ((uint8_t)0x01) /* 1's complement */ #define ESCO_PCM_DATA_FORMAT_2_COMP ((uint8_t)0x02) /* 2's complement */ #define ESCO_PCM_DATA_FORMAT_SIGN ((uint8_t)0x03) /* Sign-magnitude */ #define ESCO_PCM_DATA_FORMAT_UNSIGN ((uint8_t)0x04) /* Unsigned */ typedef uint8_t esco_pcm_data_format_t; // SCO Data Path #define ESCO_DATA_PATH_PCM 1 /* 0x01-0xFE (PCM Chan) */ #define ESCO_DATA_PATH_HCI ((uint8_t)0x00) /* HCI-0, 0x01-0xFE (PCM Chan) */ #define ESCO_DATA_PATH_TEST ((uint8_t)0xFF) /* 0xFF-Audio Test */ typedef uint8_t esco_data_path_t; // eSCO constants #define TXRX_64KBITS_RATE 0x00001f40 /* 64 kbits/sec data rate */ #define TXRX_128KBITS_RATE 0x00003E80 /* 128 kbits/sec data rate */ typedef uint32_t esco_txrx_bandwidth_t; #define INPUT_OUTPUT_64K_RATE 0x00003E80 /* 16000 Bytes/sec over transport */ #define INPUT_OUTPUT_128K_RATE 0x00007D00 /* 32000 Bytes/sec over transport */ typedef uint32_t esco_io_bandwidth_t; // Retransmission effort #define ESCO_RETRANSMISSION_OFF 0 #define ESCO_RETRANSMISSION_POWER 1 #define ESCO_RETRANSMISSION_QUALITY 2 #define ESCO_RETRANSMISSION_DONTCARE 0xff typedef uint8_t esco_retransmission_effort_t; // Definitions for eSCO packet type masks (BT1.2 and BT2.0 definitions) #define ESCO_PKT_TYPES_MASK_HV1 0x0001 #define ESCO_PKT_TYPES_MASK_HV2 0x0002 #define ESCO_PKT_TYPES_MASK_HV3 0x0004 #define ESCO_PKT_TYPES_MASK_EV3 0x0008 #define ESCO_PKT_TYPES_MASK_EV4 0x0010 #define ESCO_PKT_TYPES_MASK_EV5 0x0020 #define ESCO_PKT_TYPES_MASK_NO_2_EV3 0x0040 #define ESCO_PKT_TYPES_MASK_NO_3_EV3 0x0080 #define ESCO_PKT_TYPES_MASK_NO_2_EV5 0x0100 #define ESCO_PKT_TYPES_MASK_NO_3_EV5 0x0200 typedef uint16_t esco_packet_types_t; // type definition typedef struct { esco_coding_format_t coding_format; /* Coding Format*/ uint16_t company_id; /* Company ID from BT SIG Assigned Numbers */ uint16_t vendor_specific_codec_id; /* Vendor Specific Codec ID */ } esco_coding_id_format_t; // Enhanced setup/accept synchronous connection See BT 4.1 or later HCI spec for // details typedef struct { esco_txrx_bandwidth_t transmit_bandwidth; /* Transmit Bandwidth (in octets/second) */ esco_txrx_bandwidth_t receive_bandwidth; /* RX BW (# of octets/second) */ esco_coding_id_format_t transmit_coding_format; /* TX coding format */ esco_coding_id_format_t receive_coding_format; /* RX coding format */ uint16_t transmit_codec_frame_size; /* TX CODEC frame size (OTA frame size) */ uint16_t receive_codec_frame_size; /* RX CODEC frame size (OTA frame size) */ esco_io_bandwidth_t input_bandwidth; /* Input BW (nominal rate octets/sec) */ esco_io_bandwidth_t output_bandwidth; /* Output BW (nominal rate octets/sec) */ esco_coding_id_format_t input_coding_format; /* Input coding format */ esco_coding_id_format_t output_coding_format; /* Output coding format */ uint16_t input_coded_data_size; /* Input coded data size (in bits) */ uint16_t output_coded_data_size; /* Output coded data size (in bits) */ esco_pcm_data_format_t input_pcm_data_format; /* Input PCM data format (see hcidefs.h) */ esco_pcm_data_format_t output_pcm_data_format; /* Output PCM data format (see hcidefs.h) */ uint8_t input_pcm_payload_msb_position; /* Input PCM sample payload MSB position */ uint8_t output_pcm_payload_msb_position; /* Output PCM sample payload MSB position */ esco_data_path_t input_data_path; /* 0x00 - HCI, or 0x01-0xFE for VS) */ esco_data_path_t output_data_path; /* 0x00 - HCI, or 0x01-0xFE for VS) */ uint8_t input_transport_unit_size; /* Input transport unit size */ uint8_t output_transport_unit_size; /* Output transport unit size */ uint16_t max_latency_ms; /* Maximum latency (0x4-0xFFFE in msecs) */ esco_packet_types_t packet_types; /* Packet Types */ esco_retransmission_effort_t retransmission_effort; /* 0x00-0x02, 0xFF don't care */ } enh_esco_params_t; // Get the enhanced eSCO configuration parameters for the provided |codec| enh_esco_params_t esco_parameters_for_codec(esco_codec_t codec);