#include "hci.h"
#include "classic/sdp_client_rfcomm.h"

Data Structures
struct	hfp_ag_indicator_t

struct	hfp_call_service_t

struct	hfp_connection

struct	hfp_generic_status_indicator_t

struct	hfp_network_opearator_t

Macros
#define	HFP_ACTIVATE_VOICE_RECOGNITION "+BVRA"

#define	HFP_AGSF_ABILITY_TO_REJECT_A_CALL 5

#define	HFP_AGSF_ATTACH_A_NUMBER_TO_A_VOICE_TAG 4

#define	HFP_AGSF_CODEC_NEGOTIATION 9

#define	HFP_AGSF_EC_NR_FUNCTION 1

#define	HFP_AGSF_ENHANCED_CALL_CONTROL 7

#define	HFP_AGSF_ENHANCED_CALL_STATUS 6

#define	HFP_AGSF_ESCO_S4 11

#define	HFP_AGSF_EXTENDED_ERROR_RESULT_CODES 8

#define	HFP_AGSF_HF_INDICATORS 10

#define	HFP_AGSF_IN_BAND_RING_TONE 3

#define	HFP_AGSF_THREE_WAY_CALLING 0

#define	HFP_AGSF_VOICE_RECOGNITION_FUNCTION 2

#define	HFP_AVAILABLE_CODECS "+BAC"

#define	HFP_CALL_ANSWERED "ATA"

#define	HFP_CALL_PHONE_NUMBER "ATD"

#define	HFP_CHANGE_IN_BAND_RING_TONE_SETTING "+BSIR"

#define	HFP_CODEC_CVSD 0x01

#define	HFP_CODEC_MSBC 0x02

#define	HFP_CONFIRM_COMMON_CODEC "+BCS"

#define	HFP_DEFAULT_AG_SUPPORTED_FEATURES 0x0009

#define	HFP_DEFAULT_HF_SUPPORTED_FEATURES 0x0000

#define	HFP_ENABLE_CALL_WAITING_NOTIFICATION "+CCWA"

#define	HFP_ENABLE_CLIP "+CLIP"

#define	HFP_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR "+CMEE"

#define	HFP_ENABLE_STATUS_UPDATE_FOR_AG_INDICATORS "+CMER"

#define	HFP_ERROR "ERROR"

#define	HFP_EXTENDED_AUDIO_GATEWAY_ERROR "+CME ERROR"

#define	HFP_GENERIC_STATUS_INDICATOR "+BIND"

#define	HFP_HANG_UP_CALL "+CHUP"

#define	HFP_HFSF_CLI_PRESENTATION_CAPABILITY 2

#define	HFP_HFSF_CODEC_NEGOTIATION 7

#define	HFP_HFSF_EC_NR_FUNCTION 0

#define	HFP_HFSF_ENHANCED_CALL_CONTROL 6

#define	HFP_HFSF_ENHANCED_CALL_STATUS 5

#define	HFP_HFSF_ESCO_S4 9

#define	HFP_HFSF_HF_INDICATORS 8

#define	HFP_HFSF_REMOTE_VOLUME_CONTROL 4

#define	HFP_HFSF_THREE_WAY_CALLING 1

#define	HFP_HFSF_VOICE_RECOGNITION_FUNCTION 3

#define	HFP_INDICATOR "+CIND"

#define	HFP_LIST_CURRENT_CALLS "+CLCC"

#define	HFP_MAX_INDICATOR_DESC_SIZE 20

#define	HFP_MAX_NUM_AG_INDICATORS 20

#define	HFP_MAX_NUM_CODECS 20

#define	HFP_MAX_NUM_HF_INDICATORS 20

#define	HFP_OK "OK"

#define	HFP_PHONE_NUMBER_FOR_VOICE_TAG "+BINP"

#define	HFP_QUERY_OPERATOR_SELECTION "+COPS"

#define	HFP_REDIAL_LAST_NUMBER "+BLDN"

#define	HFP_RESPONSE_AND_HOLD "+BTRH"

#define	HFP_RING "RING"

#define	HFP_SET_MICROPHONE_GAIN "+VGM"

#define	HFP_SET_SPEAKER_GAIN "+VGS"

#define	HFP_SUBSCRIBER_NUMBER_INFORMATION "+CNUM"

#define	HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES "+CHLD"

#define	HFP_SUPPORTED_FEATURES "+BRSF"

#define	HFP_TRANSFER_AG_INDICATOR_STATUS "+CIEV"

#define	HFP_TRANSFER_HF_INDICATOR_STATUS "+BIEV"

#define	HFP_TRANSMIT_DTMF_CODES "+VTS"

#define	HFP_TRIGGER_CODEC_CONNECTION_SETUP "+BCC"

#define	HFP_TURN_OFF_EC_AND_NR "+NREC"

#define	HFP_UPDATE_ENABLE_STATUS_FOR_INDIVIDUAL_AG_INDICATORS "+BIA"

Typedefs
typedef struct hfp_connection	hfp_connection_t

Enumerations
enum	hfp_ag_call_event_t { HFP_AG_INCOMING_CALL, HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, HFP_AG_AUDIO_CONNECTION_ESTABLISHED, HFP_AG_OUTGOING_CALL_INITIATED, HFP_AG_OUTGOING_CALL_REJECTED, HFP_AG_OUTGOING_CALL_ACCEPTED, HFP_AG_OUTGOING_CALL_RINGING, HFP_AG_OUTGOING_CALL_ESTABLISHED, HFP_AG_OUTGOING_REDIAL_INITIATED, HFP_AG_HELD_CALL_JOINED_BY_AG, HFP_AG_TERMINATE_CALL_BY_AG, HFP_AG_TERMINATE_CALL_BY_HF, HFP_AG_CALL_DROPPED, HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF, HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF, HFP_AG_CALL_HOLD_USER_BUSY, HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, HFP_AG_CALL_HOLD_ADD_HELD_CALL, HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, HFP_AG_SET_CLIP }

enum	hfp_call_state_t { HFP_CALL_IDLE, HFP_CALL_TRIGGER_AUDIO_CONNECTION, HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING, HFP_CALL_RINGING, HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE, HFP_CALL_ACTIVE, HFP_CALL_W2_SEND_CALL_WAITING, HFP_CALL_W4_CHLD, HFP_CALL_OUTGOING_INITIATED, HFP_CALL_OUTGOING_DIALING, HFP_CALL_OUTGOING_RINGING }

enum	hfp_call_status_t { HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS = 0, HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT }

enum	hfp_callheld_status_t { HFP_CALLHELD_STATUS_NO_CALLS_HELD = 0, HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED, HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS }

enum	hfp_callsetup_status_t { HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS = 0, HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS, HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE, HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE }

enum	hfp_cme_error_t { HFP_CME_ERROR_AG_FAILURE = 0, HFP_CME_ERROR_NO_CONNECTION_TO_PHONE, HFP_CME_ERROR_2, HFP_CME_ERROR_OPERATION_NOT_ALLOWED, HFP_CME_ERROR_OPERATION_NOT_SUPPORTED, HFP_CME_ERROR_PH_SIM_PIN_REQUIRED, HFP_CME_ERROR_6, HFP_CME_ERROR_7, HFP_CME_ERROR_8, HFP_CME_ERROR_9, HFP_CME_ERROR_SIM_NOT_INSERTED, HFP_CME_ERROR_SIM_PIN_REQUIRED, HFP_CME_ERROR_SIM_PUK_REQUIRED, HFP_CME_ERROR_SIM_FAILURE, HFP_CME_ERROR_SIM_BUSY, HFP_CME_ERROR_15, HFP_CME_ERROR_INCORRECT_PASSWORD, HFP_CME_ERROR_SIM_PIN2_REQUIRED, HFP_CME_ERROR_SIM_PUK2_REQUIRED, HFP_CME_ERROR_19, HFP_CME_ERROR_MEMORY_FULL, HFP_CME_ERROR_INVALID_INDEX, HFP_CME_ERROR_22, HFP_CME_ERROR_MEMORY_FAILURE, HFP_CME_ERROR_TEXT_STRING_TOO_LONG, HFP_CME_ERROR_INVALID_CHARACTERS_IN_TEXT_STRING, HFP_CME_ERROR_DIAL_STRING_TOO_LONG, HFP_CME_ERROR_INVALID_CHARACTERS_IN_DIAL_STRING, HFP_CME_ERROR_28, HFP_CME_ERROR_29, HFP_CME_ERROR_NO_NETWORK_SERVICE, HFP_CME_ERROR_NETWORK_TIMEOUT, HFP_CME_ERROR_NETWORK_NOT_ALLOWED_EMERGENCY_CALLS_ONLY }

enum	hfp_codecs_state_t { HFP_CODECS_IDLE, HFP_CODECS_RECEIVED_LIST, HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE, HFP_CODECS_W4_AG_COMMON_CODEC, HFP_CODECS_AG_SENT_COMMON_CODEC, HFP_CODECS_AG_RESEND_COMMON_CODEC, HFP_CODECS_HF_CONFIRMED_CODEC, HFP_CODECS_EXCHANGED, HFP_CODECS_ERROR }

enum	hfp_command_t { HFP_CMD_NONE = 0, HFP_CMD_ERROR, HFP_CMD_UNKNOWN, HFP_CMD_OK, HFP_CMD_RING, HFP_CMD_SUPPORTED_FEATURES, HFP_CMD_AVAILABLE_CODECS, HFP_CMD_RETRIEVE_AG_INDICATORS, HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS, HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE, HFP_CMD_ENABLE_INDIVIDUAL_AG_INDICATOR_STATUS_UPDATE, HFP_CMD_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES, HFP_CMD_ENABLE_CLIP, HFP_CMD_AG_SENT_CLIP_INFORMATION, HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION, HFP_CMD_AG_SENT_CALL_WAITING_NOTIFICATION_UPDATE, HFP_CMD_LIST_GENERIC_STATUS_INDICATORS, HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS, HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS_STATE, HFP_CMD_SET_GENERIC_STATUS_INDICATOR_STATUS, HFP_CMD_TRANSFER_AG_INDICATOR_STATUS, HFP_CMD_QUERY_OPERATOR_SELECTION_NAME, HFP_CMD_QUERY_OPERATOR_SELECTION_NAME_FORMAT, HFP_CMD_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR, HFP_CMD_EXTENDED_AUDIO_GATEWAY_ERROR, HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP, HFP_CMD_AG_SEND_COMMON_CODEC, HFP_CMD_AG_SUGGESTED_CODEC, HFP_CMD_HF_CONFIRMED_CODEC, HFP_CMD_CALL_ANSWERED, HFP_CMD_CALL_HOLD, HFP_CMD_AG_ANSWER_CALL, HFP_CMD_HANG_UP_CALL, HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING, HFP_CMD_CALL_PHONE_NUMBER, HFP_CMD_REDIAL_LAST_NUMBER, HFP_CMD_TURN_OFF_EC_AND_NR, HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION, HFP_CMD_HF_ACTIVATE_VOICE_RECOGNITION, HFP_CMD_HF_REQUEST_PHONE_NUMBER, HFP_CMD_AG_SENT_PHONE_NUMBER, HFP_CMD_TRANSMIT_DTMF_CODES, HFP_CMD_SET_MICROPHONE_GAIN, HFP_CMD_SET_SPEAKER_GAIN, HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION, HFP_CMD_LIST_CURRENT_CALLS, HFP_CMD_RESPONSE_AND_HOLD_QUERY, HFP_CMD_RESPONSE_AND_HOLD_COMMAND, HFP_CMD_RESPONSE_AND_HOLD_STATUS, HFP_CMD_HF_INDICATOR_STATUS }

enum	hfp_enhanced_call_dir_t { HFP_ENHANCED_CALL_DIR_OUTGOING, HFP_ENHANCED_CALL_DIR_INCOMING }

enum	hfp_enhanced_call_mode_t { HFP_ENHANCED_CALL_MODE_VOICE, HFP_ENHANCED_CALL_MODE_DATA, HFP_ENHANCED_CALL_MODE_FAX }

enum	hfp_enhanced_call_mpty_t { HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL, HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL }

enum	hfp_enhanced_call_status_t { HFP_ENHANCED_CALL_STATUS_ACTIVE, HFP_ENHANCED_CALL_STATUS_HELD, HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING, HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING, HFP_ENHANCED_CALL_STATUS_INCOMING, HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING, HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD }

enum	hfp_hf_query_operator_state_t { HFP_HF_QUERY_OPERATOR_FORMAT_NOT_SET = 0, HFP_HF_QUERY_OPERATOR_SET_FORMAT, HFP_HF_QUERY_OPERATOR_W4_SET_FORMAT_OK, HFP_HF_QUERY_OPERATOR_FORMAT_SET, HFP_HF_QUERY_OPERATOR_SEND_QUERY, HPF_HF_QUERY_OPERATOR_W4_RESULT }

enum	hfp_link_setttings_t { HFP_LINK_SETTINGS_D0 = 0, HFP_LINK_SETTINGS_D1, HFP_LINK_SETTINGS_S1, HFP_LINK_SETTINGS_S2, HFP_LINK_SETTINGS_S3, HFP_LINK_SETTINGS_S4, HFP_LINK_SETTINGS_T1, HFP_LINK_SETTINGS_T2 }

enum	hfp_parser_state_t { HFP_PARSER_CMD_HEADER = 0, HFP_PARSER_CMD_SEQUENCE, HFP_PARSER_SECOND_ITEM, HFP_PARSER_THIRD_ITEM }

enum	hfp_response_and_hold_state_t { HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD = 0, HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED, HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED }

enum	hfp_state_machine_t { HFP_NONE_SM, HFP_SLC_SM, HFP_SLC_QUERIES_SM, HFP_CODECS_CONNECTION_SM, HFP_AUDIO_CONNECTION_SM, HFP_CALL_SM }

enum	hfp_state_t { HFP_IDLE = 0, HFP_SDP_QUERY_RFCOMM_CHANNEL, HFP_W4_SDP_QUERY_COMPLETE, HFP_W4_RFCOMM_CONNECTED, HFP_EXCHANGE_SUPPORTED_FEATURES, HFP_W4_EXCHANGE_SUPPORTED_FEATURES, HFP_NOTIFY_ON_CODECS, HFP_W4_NOTIFY_ON_CODECS, HFP_RETRIEVE_INDICATORS, HFP_W4_RETRIEVE_INDICATORS, HFP_RETRIEVE_INDICATORS_STATUS, HFP_W4_RETRIEVE_INDICATORS_STATUS, HFP_ENABLE_INDICATORS_STATUS_UPDATE, HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE, HFP_RETRIEVE_CAN_HOLD_CALL, HFP_W4_RETRIEVE_CAN_HOLD_CALL, HFP_LIST_GENERIC_STATUS_INDICATORS, HFP_W4_LIST_GENERIC_STATUS_INDICATORS, HFP_RETRIEVE_GENERIC_STATUS_INDICATORS, HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS, HFP_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS, HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS, HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED, HFP_W2_CONNECT_SCO, HFP_W4_SCO_CONNECTED, HFP_AUDIO_CONNECTION_ESTABLISHED, HFP_W2_DISCONNECT_SCO, HFP_W4_SCO_DISCONNECTED, HFP_W2_DISCONNECT_RFCOMM, HFP_W4_RFCOMM_DISCONNECTED, HFP_W4_RFCOMM_DISCONNECTED_AND_RESTART, HFP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN }

Functions
int	get_bit (uint16_t bitmap, int position)

hfp_connection_t *	get_hfp_connection_context_for_acl_handle (uint16_t handle)

hfp_connection_t *	get_hfp_connection_context_for_bd_addr (bd_addr_t bd_addr)

hfp_connection_t *	get_hfp_connection_context_for_rfcomm_cid (uint16_t cid)

hfp_connection_t *	get_hfp_connection_context_for_sco_handle (uint16_t handle)

const char *	hfp_ag_feature (int index)

void	hfp_create_sdp_record (uint8_t service, uint32_t service_record_handle, uint16_t service_uuid, int rfcomm_channel_nr, const char name)

void	hfp_emit_event (btstack_packet_handler_t callback, uint8_t event_subtype, uint8_t value)

void	hfp_emit_simple_event (btstack_packet_handler_t callback, uint8_t event_subtype)

void	hfp_emit_slc_connection_event (btstack_packet_handler_t callback, uint8_t status, hci_con_handle_t con_handle, bd_addr_t addr)

void	hfp_emit_string_event (btstack_packet_handler_t callback, uint8_t event_subtype, const char *value)

void	hfp_establish_service_level_connection (bd_addr_t bd_addr, uint16_t service_uuid)

btstack_linked_list_t *	hfp_get_connections (void)

void	hfp_handle_hci_event (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size)

void	hfp_hf_drop_mSBC_if_eSCO_not_supported (uint8_t codecs, uint8_t codecs_nr)

const char *	hfp_hf_feature (int index)

void	hfp_parse (hfp_connection_t *connection, uint8_t byte, int isHandsFree)

void	hfp_release_audio_connection (hfp_connection_t *connection)

void	hfp_release_service_level_connection (hfp_connection_t *connection)

void	hfp_reset_context_flags (hfp_connection_t *connection)

void	hfp_set_callback (btstack_packet_handler_t callback)

void	hfp_set_packet_handler_for_rfcomm_connections (btstack_packet_handler_t handler)

void	hfp_setup_synchronous_connection (hfp_connection_t *connection)

int	hfp_supports_codec (uint8_t codec, int codecs_nr, uint8_t *codecs)

int	join (char buffer, int buffer_size, uint8_t values, int values_nr)

int	join_bitmap (char *buffer, int buffer_size, uint32_t values, int values_nr)

int	send_str_over_rfcomm (uint16_t cid, char *command)

int	store_bit (uint32_t bitmap, int position, uint8_t value)

#define HFP_ACTIVATE_VOICE_RECOGNITION "+BVRA"

#define HFP_AGSF_ABILITY_TO_REJECT_A_CALL 5

#define HFP_AGSF_ATTACH_A_NUMBER_TO_A_VOICE_TAG 4

#define HFP_AGSF_CODEC_NEGOTIATION 9

#define HFP_AGSF_EC_NR_FUNCTION 1

#define HFP_AGSF_ENHANCED_CALL_CONTROL 7

#define HFP_AGSF_ENHANCED_CALL_STATUS 6

#define HFP_AGSF_ESCO_S4 11

#define HFP_AGSF_EXTENDED_ERROR_RESULT_CODES 8

#define HFP_AGSF_HF_INDICATORS 10

#define HFP_AGSF_IN_BAND_RING_TONE 3

#define HFP_AGSF_THREE_WAY_CALLING 0

#define HFP_AGSF_VOICE_RECOGNITION_FUNCTION 2

#define HFP_AVAILABLE_CODECS "+BAC"

#define HFP_CALL_ANSWERED "ATA"

#define HFP_CALL_PHONE_NUMBER "ATD"

#define HFP_CHANGE_IN_BAND_RING_TONE_SETTING "+BSIR"

#define HFP_CODEC_CVSD 0x01

#define HFP_CODEC_MSBC 0x02

#define HFP_CONFIRM_COMMON_CODEC "+BCS"

#define HFP_DEFAULT_AG_SUPPORTED_FEATURES 0x0009

#define HFP_DEFAULT_HF_SUPPORTED_FEATURES 0x0000

#define HFP_ENABLE_CALL_WAITING_NOTIFICATION "+CCWA"

#define HFP_ENABLE_CLIP "+CLIP"

#define HFP_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR "+CMEE"

#define HFP_ENABLE_STATUS_UPDATE_FOR_AG_INDICATORS "+CMER"

#define HFP_ERROR "ERROR"

#define HFP_EXTENDED_AUDIO_GATEWAY_ERROR "+CME ERROR"

#define HFP_GENERIC_STATUS_INDICATOR "+BIND"

#define HFP_HANG_UP_CALL "+CHUP"

#define HFP_HFSF_CLI_PRESENTATION_CAPABILITY 2

#define HFP_HFSF_CODEC_NEGOTIATION 7

#define HFP_HFSF_EC_NR_FUNCTION 0

#define HFP_HFSF_ENHANCED_CALL_CONTROL 6

#define HFP_HFSF_ENHANCED_CALL_STATUS 5

#define HFP_HFSF_ESCO_S4 9

#define HFP_HFSF_HF_INDICATORS 8

#define HFP_HFSF_REMOTE_VOLUME_CONTROL 4

#define HFP_HFSF_THREE_WAY_CALLING 1

#define HFP_HFSF_VOICE_RECOGNITION_FUNCTION 3

#define HFP_INDICATOR "+CIND"

#define HFP_LIST_CURRENT_CALLS "+CLCC"

#define HFP_MAX_INDICATOR_DESC_SIZE 20

#define HFP_MAX_NUM_AG_INDICATORS 20

#define HFP_MAX_NUM_CODECS 20

#define HFP_MAX_NUM_HF_INDICATORS 20

#define HFP_OK "OK"

#define HFP_PHONE_NUMBER_FOR_VOICE_TAG "+BINP"

#define HFP_QUERY_OPERATOR_SELECTION "+COPS"

#define HFP_REDIAL_LAST_NUMBER "+BLDN"

#define HFP_RESPONSE_AND_HOLD "+BTRH"

#define HFP_RING "RING"

#define HFP_SET_MICROPHONE_GAIN "+VGM"

#define HFP_SET_SPEAKER_GAIN "+VGS"

#define HFP_SUBSCRIBER_NUMBER_INFORMATION "+CNUM"

#define HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES "+CHLD"

#define HFP_SUPPORTED_FEATURES "+BRSF"

#define HFP_TRANSFER_AG_INDICATOR_STATUS "+CIEV"

#define HFP_TRANSFER_HF_INDICATOR_STATUS "+BIEV"

#define HFP_TRANSMIT_DTMF_CODES "+VTS"

#define HFP_TRIGGER_CODEC_CONNECTION_SETUP "+BCC"

#define HFP_TURN_OFF_EC_AND_NR "+NREC"

#define HFP_UPDATE_ENABLE_STATUS_FOR_INDIVIDUAL_AG_INDICATORS "+BIA"

typedef struct hfp_connection hfp_connection_t

enum hfp_ag_call_event_t

Enumerator
HFP_AG_INCOMING_CALL
HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG
HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF
HFP_AG_AUDIO_CONNECTION_ESTABLISHED
HFP_AG_OUTGOING_CALL_INITIATED
HFP_AG_OUTGOING_CALL_REJECTED
HFP_AG_OUTGOING_CALL_ACCEPTED
HFP_AG_OUTGOING_CALL_RINGING
HFP_AG_OUTGOING_CALL_ESTABLISHED
HFP_AG_OUTGOING_REDIAL_INITIATED
HFP_AG_HELD_CALL_JOINED_BY_AG
HFP_AG_TERMINATE_CALL_BY_AG
HFP_AG_TERMINATE_CALL_BY_HF
HFP_AG_CALL_DROPPED
HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG
HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG
HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG
HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF
HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF
HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF
HFP_AG_CALL_HOLD_USER_BUSY
HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL
HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL
HFP_AG_CALL_HOLD_ADD_HELD_CALL
HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS
HFP_AG_SET_CLIP

enum hfp_call_state_t

Enumerator
HFP_CALL_IDLE
HFP_CALL_TRIGGER_AUDIO_CONNECTION
HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING
HFP_CALL_RINGING
HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE
HFP_CALL_ACTIVE
HFP_CALL_W2_SEND_CALL_WAITING
HFP_CALL_W4_CHLD
HFP_CALL_OUTGOING_INITIATED
HFP_CALL_OUTGOING_DIALING
HFP_CALL_OUTGOING_RINGING

enum hfp_call_status_t

Enumerator
HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS
HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT

enum hfp_callheld_status_t

Enumerator
HFP_CALLHELD_STATUS_NO_CALLS_HELD
HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED
HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS

enum hfp_callsetup_status_t

Enumerator
HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS
HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS
HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE
HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE

enum hfp_cme_error_t

Enumerator
HFP_CME_ERROR_AG_FAILURE
HFP_CME_ERROR_NO_CONNECTION_TO_PHONE
HFP_CME_ERROR_2
HFP_CME_ERROR_OPERATION_NOT_ALLOWED
HFP_CME_ERROR_OPERATION_NOT_SUPPORTED
HFP_CME_ERROR_PH_SIM_PIN_REQUIRED
HFP_CME_ERROR_6
HFP_CME_ERROR_7
HFP_CME_ERROR_8
HFP_CME_ERROR_9
HFP_CME_ERROR_SIM_NOT_INSERTED
HFP_CME_ERROR_SIM_PIN_REQUIRED
HFP_CME_ERROR_SIM_PUK_REQUIRED
HFP_CME_ERROR_SIM_FAILURE
HFP_CME_ERROR_SIM_BUSY
HFP_CME_ERROR_15
HFP_CME_ERROR_INCORRECT_PASSWORD
HFP_CME_ERROR_SIM_PIN2_REQUIRED
HFP_CME_ERROR_SIM_PUK2_REQUIRED
HFP_CME_ERROR_19
HFP_CME_ERROR_MEMORY_FULL
HFP_CME_ERROR_INVALID_INDEX
HFP_CME_ERROR_22
HFP_CME_ERROR_MEMORY_FAILURE
HFP_CME_ERROR_TEXT_STRING_TOO_LONG
HFP_CME_ERROR_INVALID_CHARACTERS_IN_TEXT_STRING
HFP_CME_ERROR_DIAL_STRING_TOO_LONG
HFP_CME_ERROR_INVALID_CHARACTERS_IN_DIAL_STRING
HFP_CME_ERROR_28
HFP_CME_ERROR_29
HFP_CME_ERROR_NO_NETWORK_SERVICE
HFP_CME_ERROR_NETWORK_TIMEOUT
HFP_CME_ERROR_NETWORK_NOT_ALLOWED_EMERGENCY_CALLS_ONLY

enum hfp_codecs_state_t

Enumerator
HFP_CODECS_IDLE
HFP_CODECS_RECEIVED_LIST
HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE
HFP_CODECS_W4_AG_COMMON_CODEC
HFP_CODECS_AG_SENT_COMMON_CODEC
HFP_CODECS_AG_RESEND_COMMON_CODEC
HFP_CODECS_HF_CONFIRMED_CODEC
HFP_CODECS_EXCHANGED
HFP_CODECS_ERROR

enum hfp_command_t

Enumerator
HFP_CMD_NONE
HFP_CMD_ERROR
HFP_CMD_UNKNOWN
HFP_CMD_OK
HFP_CMD_RING
HFP_CMD_SUPPORTED_FEATURES
HFP_CMD_AVAILABLE_CODECS
HFP_CMD_RETRIEVE_AG_INDICATORS
HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS
HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE
HFP_CMD_ENABLE_INDIVIDUAL_AG_INDICATOR_STATUS_UPDATE
HFP_CMD_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES
HFP_CMD_ENABLE_CLIP
HFP_CMD_AG_SENT_CLIP_INFORMATION
HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION
HFP_CMD_AG_SENT_CALL_WAITING_NOTIFICATION_UPDATE
HFP_CMD_LIST_GENERIC_STATUS_INDICATORS
HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS
HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS_STATE
HFP_CMD_SET_GENERIC_STATUS_INDICATOR_STATUS
HFP_CMD_TRANSFER_AG_INDICATOR_STATUS
HFP_CMD_QUERY_OPERATOR_SELECTION_NAME
HFP_CMD_QUERY_OPERATOR_SELECTION_NAME_FORMAT
HFP_CMD_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR
HFP_CMD_EXTENDED_AUDIO_GATEWAY_ERROR
HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP
HFP_CMD_AG_SEND_COMMON_CODEC
HFP_CMD_AG_SUGGESTED_CODEC
HFP_CMD_HF_CONFIRMED_CODEC
HFP_CMD_CALL_ANSWERED
HFP_CMD_CALL_HOLD
HFP_CMD_AG_ANSWER_CALL
HFP_CMD_HANG_UP_CALL
HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING
HFP_CMD_CALL_PHONE_NUMBER
HFP_CMD_REDIAL_LAST_NUMBER
HFP_CMD_TURN_OFF_EC_AND_NR
HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION
HFP_CMD_HF_ACTIVATE_VOICE_RECOGNITION
HFP_CMD_HF_REQUEST_PHONE_NUMBER
HFP_CMD_AG_SENT_PHONE_NUMBER
HFP_CMD_TRANSMIT_DTMF_CODES
HFP_CMD_SET_MICROPHONE_GAIN
HFP_CMD_SET_SPEAKER_GAIN
HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION
HFP_CMD_LIST_CURRENT_CALLS
HFP_CMD_RESPONSE_AND_HOLD_QUERY
HFP_CMD_RESPONSE_AND_HOLD_COMMAND
HFP_CMD_RESPONSE_AND_HOLD_STATUS
HFP_CMD_HF_INDICATOR_STATUS

enum hfp_enhanced_call_dir_t

Enumerator
HFP_ENHANCED_CALL_DIR_OUTGOING
HFP_ENHANCED_CALL_DIR_INCOMING

enum hfp_enhanced_call_mode_t

Enumerator
HFP_ENHANCED_CALL_MODE_VOICE
HFP_ENHANCED_CALL_MODE_DATA
HFP_ENHANCED_CALL_MODE_FAX

enum hfp_enhanced_call_mpty_t

Enumerator
HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL
HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL

enum hfp_enhanced_call_status_t

Enumerator
HFP_ENHANCED_CALL_STATUS_ACTIVE
HFP_ENHANCED_CALL_STATUS_HELD
HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING
HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING
HFP_ENHANCED_CALL_STATUS_INCOMING
HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING
HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD

enum hfp_hf_query_operator_state_t

Enumerator
HFP_HF_QUERY_OPERATOR_FORMAT_NOT_SET
HFP_HF_QUERY_OPERATOR_SET_FORMAT
HFP_HF_QUERY_OPERATOR_W4_SET_FORMAT_OK
HFP_HF_QUERY_OPERATOR_FORMAT_SET
HFP_HF_QUERY_OPERATOR_SEND_QUERY
HPF_HF_QUERY_OPERATOR_W4_RESULT

enum hfp_link_setttings_t

Enumerator
HFP_LINK_SETTINGS_D0
HFP_LINK_SETTINGS_D1
HFP_LINK_SETTINGS_S1
HFP_LINK_SETTINGS_S2
HFP_LINK_SETTINGS_S3
HFP_LINK_SETTINGS_S4
HFP_LINK_SETTINGS_T1
HFP_LINK_SETTINGS_T2

enum hfp_parser_state_t

Enumerator
HFP_PARSER_CMD_HEADER
HFP_PARSER_CMD_SEQUENCE
HFP_PARSER_SECOND_ITEM
HFP_PARSER_THIRD_ITEM

enum hfp_response_and_hold_state_t

Enumerator
HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD
HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED
HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED

enum hfp_state_machine_t

Enumerator
HFP_NONE_SM
HFP_SLC_SM
HFP_SLC_QUERIES_SM
HFP_CODECS_CONNECTION_SM
HFP_AUDIO_CONNECTION_SM
HFP_CALL_SM

enum hfp_state_t

Enumerator
HFP_IDLE
HFP_SDP_QUERY_RFCOMM_CHANNEL
HFP_W4_SDP_QUERY_COMPLETE
HFP_W4_RFCOMM_CONNECTED
HFP_EXCHANGE_SUPPORTED_FEATURES
HFP_W4_EXCHANGE_SUPPORTED_FEATURES
HFP_NOTIFY_ON_CODECS
HFP_W4_NOTIFY_ON_CODECS
HFP_RETRIEVE_INDICATORS
HFP_W4_RETRIEVE_INDICATORS
HFP_RETRIEVE_INDICATORS_STATUS
HFP_W4_RETRIEVE_INDICATORS_STATUS
HFP_ENABLE_INDICATORS_STATUS_UPDATE
HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE
HFP_RETRIEVE_CAN_HOLD_CALL
HFP_W4_RETRIEVE_CAN_HOLD_CALL
HFP_LIST_GENERIC_STATUS_INDICATORS
HFP_W4_LIST_GENERIC_STATUS_INDICATORS
HFP_RETRIEVE_GENERIC_STATUS_INDICATORS
HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS
HFP_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS
HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS
HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED
HFP_W2_CONNECT_SCO
HFP_W4_SCO_CONNECTED
HFP_AUDIO_CONNECTION_ESTABLISHED
HFP_W2_DISCONNECT_SCO
HFP_W4_SCO_DISCONNECTED
HFP_W2_DISCONNECT_RFCOMM
HFP_W4_RFCOMM_DISCONNECTED
HFP_W4_RFCOMM_DISCONNECTED_AND_RESTART
HFP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN

int get_bit	(	uint16_t	bitmap,
		int	position
	)

hfp_connection_t* get_hfp_connection_context_for_acl_handle ( uint16_t handle )

hfp_connection_t* get_hfp_connection_context_for_bd_addr ( bd_addr_t bd_addr )

hfp_connection_t* get_hfp_connection_context_for_rfcomm_cid ( uint16_t cid )

hfp_connection_t* get_hfp_connection_context_for_sco_handle ( uint16_t handle )

const char* hfp_ag_feature ( int index )

void hfp_create_sdp_record	(	uint8_t *	service,
		uint32_t	service_record_handle,
		uint16_t	service_uuid,
		int	rfcomm_channel_nr,
		const char *	name
	)

void hfp_emit_event	(	btstack_packet_handler_t	callback,
		uint8_t	event_subtype,
		uint8_t	value
	)

void hfp_emit_simple_event	(	btstack_packet_handler_t	callback,
		uint8_t	event_subtype
	)

void hfp_emit_slc_connection_event	(	btstack_packet_handler_t	callback,
		uint8_t	status,
		hci_con_handle_t	con_handle,
		bd_addr_t	addr
	)

void hfp_emit_string_event	(	btstack_packet_handler_t	callback,
		uint8_t	event_subtype,
		const char *	value
	)

void hfp_establish_service_level_connection	(	bd_addr_t	bd_addr,
		uint16_t	service_uuid
	)

btstack_linked_list_t* hfp_get_connections ( void )

void hfp_handle_hci_event	(	uint8_t	packet_type,
		uint16_t	channel,
		uint8_t *	packet,
		uint16_t	size
	)

void hfp_hf_drop_mSBC_if_eSCO_not_supported	(	uint8_t *	codecs,
		uint8_t *	codecs_nr
	)

const char* hfp_hf_feature ( int index )

void hfp_parse	(	hfp_connection_t *	connection,
		uint8_t	byte,
		int	isHandsFree
	)

void hfp_release_audio_connection ( hfp_connection_t * connection )

void hfp_release_service_level_connection ( hfp_connection_t * connection )

void hfp_reset_context_flags ( hfp_connection_t * connection )

void hfp_set_callback ( btstack_packet_handler_t callback )

void hfp_set_packet_handler_for_rfcomm_connections ( btstack_packet_handler_t handler )

void hfp_setup_synchronous_connection ( hfp_connection_t * connection )

int hfp_supports_codec	(	uint8_t	codec,
		int	codecs_nr,
		uint8_t *	codecs
	)

int join	(	char *	buffer,
		int	buffer_size,
		uint8_t *	values,
		int	values_nr
	)

int join_bitmap	(	char *	buffer,
		int	buffer_size,
		uint32_t	values,
		int	values_nr
	)

int send_str_over_rfcomm	(	uint16_t	cid,
		char *	command
	)

int store_bit	(	uint32_t	bitmap,
		int	position,
		uint8_t	value
	)

Microchip® Advanced Software Framework

Data Structures

Macros

Typedefs

Enumerations

Functions