HCI - Host Controller Interface
HCI是蓝牙协议栈最底层的Protocol模块，提供对蓝牙芯片的控制接口，属于基础命令API和数据API（数据发送，接收的最底层模块）。几乎没有应用直接调用HCI接口，所有应用层都是通过Profiles的接口间接调用HCI接口。比如设置蓝牙设备名称，应用可以调用gap_set_local_name()接口。在供电前的启动阶段，应用通过HCI用来初始化蓝牙芯片（因为这个使用GAP接口还不能用）
HCI使用
一般情况使用hci_send_cmd接口发送HCI命令，HCI都是基于一组固定模板（参考下面的OPCODE），大多数蓝牙模块同时只处理一条HCI命令，发送命令前可用hci_can_send_command_packet_now命令来确认是否可以发送命令（返回true就能发命令）
注意：上层应用尽量不直接用HCI方法，使用GAP等profile可以更便捷帮助应用层完成功能
OPCODE
HCI控制命令由两个字节的OpCode定义，每个OpCode由一个字节的OGF（OpCode Group Field）和一个字节的OCF（OpCode Command Field）组成。参考：Bluetooth Specifification - Core Version 4.0, Volume 2, Part E, Chapter 5.4.
OGF包括如下定义：
#def ine OGF LINK CONTROL 0 x01
#def ine OGF LINK POLICY 0 x02
#def ine OGF CONTROLLER BASEBAND 0 x03
#def ine OGF INFORMATIONAL PARAMETERS 0 x04
#def ine OGF LE CONTROLLER 0 x08
#def ine OGF BTSTACK 0x3d
#def ine OGF VENDOR 0 x 3f
OCF包括如下定义：
Bluetooth Specififica�tion - Core Version 4.0, Volume 2, Part E, Chapter 7.
// calculate hci opcode for ogf/ocf value
#define HCI_OPCODE(ogf, ocf) ((ocf) | ((ogf) << 10))// Link Control HCI_OPCODE_HCI_INQUIRY = HCI_OPCODE (OGF_LINK_CONTROL, 0x01), HCI_OPCODE_HCI_INQUIRY_CANCEL = HCI_OPCODE (OGF_LINK_CONTROL, 0x02), HCI_OPCODE_HCI_PERIODIC_INQUIRY_MODE = HCI_OPCODE(OGF_LINK_CONTROL, 0x03), HCI_OPCODE_HCI_EXIT_PERIODIC_INQUIRY_MODE = HCI_OPCODE(OGF_LINK_CONTROL, 0x04), HCI_OPCODE_HCI_CREATE_CONNECTION = HCI_OPCODE (OGF_LINK_CONTROL, 0x05),
HCI_OPCODE_HCI_DISCONNECT = HCI_OPCODE (OGF_LINK_CONTROL, 0x06), HCI_OPCODE_HCI_CREATE_CONNECTION_CANCEL = HCI_OPCODE (OGF_LINK_CONTROL, 0x08), HCI_OPCODE_HCI_ACCEPT_CONNECTION_REQUEST = HCI_OPCODE (OGF_LINK_CONTROL, 0x09), HCI_OPCODE_HCI_REJECT_CONNECTION_REQUEST = HCI_OPCODE (OGF_LINK_CONTROL, 0x0a), HCI_OPCODE_HCI_LINK_KEY_REQUEST_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x0b), HCI_OPCODE_HCI_LINK_KEY_REQUEST_NEGATIVE_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x0c), HCI_OPCODE_HCI_PIN_CODE_REQUEST_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x0d), HCI_OPCODE_HCI_PIN_CODE_REQUEST_NEGATIVE_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x0e), HCI_OPCODE_HCI_CHANGE_CONNECTION_PACKET_TYPE = HCI_OPCODE (OGF_LINK_CONTROL, 0x0f), HCI_OPCODE_HCI_AUTHENTICATION_REQUESTED = HCI_OPCODE (OGF_LINK_CONTROL, 0x11), HCI_OPCODE_HCI_SET_CONNECTION_ENCRYPTION = HCI_OPCODE (OGF_LINK_CONTROL, 0x13), HCI_OPCODE_HCI_CHANGE_CONNECTION_LINK_KEY = HCI_OPCODE (OGF_LINK_CONTROL, 0x15), HCI_OPCODE_HCI_REMOTE_NAME_REQUEST = HCI_OPCODE (OGF_LINK_CONTROL, 0x19), HCI_OPCODE_HCI_REMOTE_NAME_REQUEST_CANCEL = HCI_OPCODE (OGF_LINK_CONTROL, 0x1A), HCI_OPCODE_HCI_READ_REMOTE_SUPPORTED_FEATURES_COMMAND = HCI_OPCODE (OGF_LINK_CONTROL, 0x1B), HCI_OPCODE_HCI_READ_REMOTE_EXTENDED_FEATURES_COMMAND = HCI_OPCODE (OGF_LINK_CONTROL, 0x1C), HCI_OPCODE_HCI_READ_REMOTE_VERSION_INFORMATION = HCI_OPCODE (OGF_LINK_CONTROL, 0x1D), HCI_OPCODE_HCI_SETUP_SYNCHRONOUS_CONNECTION = HCI_OPCODE (OGF_LINK_CONTROL, 0x0028), HCI_OPCODE_HCI_ACCEPT_SYNCHRONOUS_CONNECTION = HCI_OPCODE (OGF_LINK_CONTROL, 0x0029), HCI_OPCODE_HCI_IO_CAPABILITY_REQUEST_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x2b), HCI_OPCODE_HCI_USER_CONFIRMATION_REQUEST_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x2c), HCI_OPCODE_HCI_USER_CONFIRMATION_REQUEST_NEGATIVE_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x2d), HCI_OPCODE_HCI_USER_PASSKEY_REQUEST_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x2e), HCI_OPCODE_HCI_USER_PASSKEY_REQUEST_NEGATIVE_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x2f), HCI_OPCODE_HCI_REMOTE_OOB_DATA_REQUEST_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x30), HCI_OPCODE_HCI_REMOTE_OOB_DATA_REQUEST_NEGATIVE_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x33), HCI_OPCODE_HCI_IO_CAPABILITY_REQUEST_NEGATIVE_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x34), HCI_OPCODE_HCI_ENHANCED_SETUP_SYNCHRONOUS_CONNECTION = HCI_OPCODE (OGF_LINK_CONTROL, 0x3d), HCI_OPCODE_HCI_ENHANCED_ACCEPT_SYNCHRONOUS_CONNECTION = HCI_OPCODE (OGF_LINK_CONTROL, 0x3e), HCI_OPCODE_HCI_REMOTE_OOB_EXTENDED_DATA_REQUEST_REPLY = HCI_OPCODE (OGF_LINK_CONTROL, 0x45), // Link Policy
HCI_OPCODE_HCI_HOLD_MODE = HCI_OPCODE (OGF_LINK_POLICY, 0x01),
HCI_OPCODE_HCI_SNIFF_MODE = HCI_OPCODE (OGF_LINK_POLICY, 0x03),
HCI_OPCODE_HCI_EXIT_SNIFF_MODE = HCI_OPCODE (OGF_LINK_POLICY, 0x04),
HCI_OPCODE_HCI_PARK_STATE = HCI_OPCODE (OGF_LINK_POLICY, 0x05),
HCI_OPCODE_HCI_EXIT_PARK_STATE = HCI_OPCODE (OGF_LINK_POLICY, 0x06),
HCI_OPCODE_HCI_QOS_SETUP = HCI_OPCODE (OGF_LINK_POLICY, 0x07),
HCI_OPCODE_HCI_ROLE_DISCOVERY = HCI_OPCODE (OGF_LINK_POLICY, 0x09), HCI_OPCODE_HCI_SWITCH_ROLE_COMMAND = HCI_OPCODE (OGF_LINK_POLICY, 0x0b), HCI_OPCODE_HCI_READ_LINK_POLICY_SETTINGS = HCI_OPCODE (OGF_LINK_POLICY, 0x0c), HCI_OPCODE_HCI_WRITE_LINK_POLICY_SETTINGS = HCI_OPCODE (OGF_LINK_POLICY, 0x0d), HCI_OPCODE_HCI_WRITE_DEFAULT_LINK_POLICY_SETTING = HCI_OPCODE (OGF_LINK_POLICY, 0x0F), HCI_OPCODE_HCI_FLOW_SPECIFICATION = HCI_OPCODE(OGF_LINK_POLICY, 0x10),
HCI_OPCODE_HCI_SNIFF_SUBRATING = HCI_OPCODE (OGF_LINK_POLICY, 0x11), // Controller Baseband HCI_OPCODE_HCI_SET_EVENT_MASK = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x01),
HCI_OPCODE_HCI_RESET = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x03),
HCI_OPCODE_HCI_FLUSH = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x08),
HCI_OPCODE_HCI_READ_PIN_TYPE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x09), HCI_OPCODE_HCI_WRITE_PIN_TYPE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x0A), HCI_OPCODE_HCI_DELETE_STORED_LINK_KEY = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x12), HCI_OPCODE_HCI_WRITE_LOCAL_NAME = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x13), HCI_OPCODE_HCI_READ_LOCAL_NAME = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x14), HCI_OPCODE_HCI_READ_PAGE_TIMEOUT = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x17), HCI_OPCODE_HCI_WRITE_PAGE_TIMEOUT = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x18), HCI_OPCODE_HCI_WRITE_SCAN_ENABLE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x1A), HCI_OPCODE_HCI_READ_PAGE_SCAN_ACTIVITY = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x1B), HCI_OPCODE_HCI_WRITE_PAGE_SCAN_ACTIVITY = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x1C), HCI_OPCODE_HCI_READ_INQUIRY_SCAN_ACTIVITY = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x1D), HCI_OPCODE_HCI_WRITE_INQUIRY_SCAN_ACTIVITY = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x1E), HCI_OPCODE_HCI_WRITE_AUTHENTICATION_ENABLE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x20), HCI_OPCODE_HCI_WRITE_CLASS_OF_DEVICE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x24), HCI_OPCODE_HCI_WRITE_AUTOMATIC_FLUSH_TIMEOUT = HCI_OPCODE(OGF_CONTROLLER_BASEBAND, 0x28), HCI_OPCODE_HCI_READ_NUM_BROADCAST_RETRANSMISSIONS = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x29), HCI_OPCODE_HCI_WRITE_NUM_BROADCAST_RETRANSMISSIONS = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x2a), HCI_OPCODE_HCI_READ_TRANSMIT_POWER_LEVEL = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x2D), HCI_OPCODE_HCI_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x2f),
HCI_OPCODE_HCI_SET_CONTROLLER_TO_HOST_FLOW_CONTROL = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x31), HCI_OPCODE_HCI_HOST_BUFFER_SIZE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x33), HCI_OPCODE_HCI_HOST_NUMBER_OF_COMPLETED_PACKETS = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x35), HCI_OPCODE_HCI_READ_LINK_SUPERVISION_TIMEOUT = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x36), HCI_OPCODE_HCI_WRITE_LINK_SUPERVISION_TIMEOUT = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x37), HCI_OPCODE_HCI_WRITE_CURRENT_IAC_LAP_TWO_IACS = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x3A), HCI_OPCODE_HCI_READ_INQUIRY_SCAN_TYPE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x42), HCI_OPCODE_HCI_WRITE_INQUIRY_SCAN_TYPE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x43), HCI_OPCODE_HCI_READ_INQUIRY_MODE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x44), HCI_OPCODE_HCI_WRITE_INQUIRY_MODE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x45), HCI_OPCODE_HCI_READ_PAGE_SCAN_TYPE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x46), HCI_OPCODE_HCI_WRITE_PAGE_SCAN_TYPE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x47), HCI_OPCODE_HCI_WRITE_EXTENDED_INQUIRY_RESPONSE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x52), HCI_OPCODE_HCI_WRITE_SIMPLE_PAIRING_MODE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x56), HCI_OPCODE_HCI_READ_LOCAL_OOB_DATA = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x57), HCI_OPCODE_HCI_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x5B), HCI_OPCODE_HCI_SET_EVENT_MASK_2 = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x63), HCI_OPCODE_HCI_READ_LE_HOST_SUPPORTED = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x6c), HCI_OPCODE_HCI_WRITE_LE_HOST_SUPPORTED = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x6d), HCI_OPCODE_HCI_WRITE_SECURE_CONNECTIONS_HOST_SUPPORT = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x7a),
HCI_OPCODE_HCI_READ_LOCAL_EXTENDED_OOB_DATA = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x7d), HCI_OPCODE_HCI_READ_EXTENDED_PAGE_TIMEOUT = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x7e), HCI_OPCODE_HCI_WRITE_EXTENDED_PAGE_TIMEOUT = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x7f), HCI_OPCODE_HCI_READ_EXTENDED_INQUIRY_LENGTH = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x80), HCI_OPCODE_HCI_WRITE_EXTENDED_INQUIRY_LENGTH = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x81), HCI_OPCODE_HCI_SET_ECOSYSTEM_BASE_INTERVAL = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x82), HCI_OPCODE_HCI_CONFIGURE_DATA_PATH = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x83), HCI_OPCODE_HCI_SET_MIN_ENCRYPTION_KEY_SIZE = HCI_OPCODE (OGF_CONTROLLER_BASEBAND, 0x84), // Testing HCI_OPCODE_HCI_READ_LOOPBACK_MODE = HCI_OPCODE (OGF_TESTING, 0x01), HCI_OPCODE_HCI_WRITE_LOOPBACK_MODE = HCI_OPCODE (OGF_TESTING, 0x02), HCI_OPCODE_HCI_ENABLE_DEVICE_UNDER_TEST_MODE = HCI_OPCODE (OGF_TESTING, 0x03), HCI_OPCODE_HCI_WRITE_SIMPLE_PAIRING_DEBUG_MODE = HCI_OPCODE (OGF_TESTING, 0x04), HCI_OPCODE_HCI_WRITE_SECURE_CONNECTIONS_TEST_MODE = HCI_OPCODE (OGF_TESTING, 0x0a), // Information Parameters
HCI_OPCODE_HCI_READ_LOCAL_VERSION_INFORMATION = HCI_OPCODE (OGF_INFORMATIONAL_PARAMETERS, 0x01), HCI_OPCODE_HCI_READ_LOCAL_SUPPORTED_COMMANDS = HCI_OPCODE (OGF_INFORMATIONAL_PARAMETERS, 0x02), HCI_OPCODE_HCI_READ_LOCAL_SUPPORTED_FEATURES = HCI_OPCODE (OGF_INFORMATIONAL_PARAMETERS, 0x03), HCI_OPCODE_HCI_READ_BUFFER_SIZE = HCI_OPCODE (OGF_INFORMATIONAL_PARAMETERS, 0x05), HCI_OPCODE_HCI_READ_BD_ADDR = HCI_OPCODE (OGF_INFORMATIONAL_PARAMETERS, 0x09), // Status Parameters HCI_OPCODE_HCI_READ_RSSI = HCI_OPCODE (OGF_STATUS_PARAMETERS, 0x05), HCI_OPCODE_HCI_READ_ENCRYPTION_KEY_SIZE = HCI_OPCODE (OGF_STATUS_PARAMETERS, 0x08), // LE Controller HCI_OPCODE_HCI_LE_SET_EVENT_MASK = HCI_OPCODE (OGF_LE_CONTROLLER, 0x01), HCI_OPCODE_HCI_LE_READ_BUFFER_SIZE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x02), HCI_OPCODE_HCI_LE_READ_LOCAL_SUPPORTED_FEATURES = HCI_OPCODE (OGF_LE_CONTROLLER, 0x03), HCI_OPCODE_HCI_LE_SET_RANDOM_ADDRESS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x05), HCI_OPCODE_HCI_LE_SET_ADVERTISING_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x06), HCI_OPCODE_HCI_LE_READ_ADVERTISING_CHANNEL_TX_POWER = HCI_OPCODE (OGF_LE_CONTROLLER, 0x07), HCI_OPCODE_HCI_LE_SET_ADVERTISING_DATA = HCI_OPCODE (OGF_LE_CONTROLLER, 0x08), HCI_OPCODE_HCI_LE_SET_SCAN_RESPONSE_DATA = HCI_OPCODE (OGF_LE_CONTROLLER, 0x09), HCI_OPCODE_HCI_LE_SET_ADVERTISE_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x0a), HCI_OPCODE_HCI_LE_SET_SCAN_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x0b), HCI_OPCODE_HCI_LE_SET_SCAN_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x0c), HCI_OPCODE_HCI_LE_CREATE_CONNECTION = HCI_OPCODE (OGF_LE_CONTROLLER, 0x0d), HCI_OPCODE_HCI_LE_CREATE_CONNECTION_CANCEL = HCI_OPCODE (OGF_LE_CONTROLLER, 0x0e), HCI_OPCODE_HCI_LE_READ_WHITE_LIST_SIZE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x0f), HCI_OPCODE_HCI_LE_CLEAR_WHITE_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x10), HCI_OPCODE_HCI_LE_ADD_DEVICE_TO_WHITE_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x11), HCI_OPCODE_HCI_LE_REMOVE_DEVICE_FROM_WHITE_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x12), HCI_OPCODE_HCI_LE_CONNECTION_UPDATE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x13), HCI_OPCODE_HCI_LE_SET_HOST_CHANNEL_CLASSIFICATION = HCI_OPCODE (OGF_LE_CONTROLLER, 0x14), HCI_OPCODE_HCI_LE_READ_CHANNEL_MAP = HCI_OPCODE (OGF_LE_CONTROLLER, 0x15), HCI_OPCODE_HCI_LE_READ_REMOTE_USED_FEATURES = HCI_OPCODE (OGF_LE_CONTROLLER, 0x16), HCI_OPCODE_HCI_LE_ENCRYPT = HCI_OPCODE (OGF_LE_CONTROLLER, 0x17),
HCI_OPCODE_HCI_LE_RAND = HCI_OPCODE (OGF_LE_CONTROLLER, 0x18),
HCI_OPCODE_HCI_LE_START_ENCRYPTION = HCI_OPCODE (OGF_LE_CONTROLLER, 0x19), HCI_OPCODE_HCI_LE_LONG_TERM_KEY_REQUEST_REPLY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x1a), HCI_OPCODE_HCI_LE_LONG_TERM_KEY_NEGATIVE_REPLY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x1b), HCI_OPCODE_HCI_LE_READ_SUPPORTED_STATES = HCI_OPCODE (OGF_LE_CONTROLLER, 0x1c), HCI_OPCODE_HCI_LE_RECEIVER_TEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x1d), HCI_OPCODE_HCI_LE_TRANSMITTER_TEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x1e), HCI_OPCODE_HCI_LE_TEST_END = HCI_OPCODE (OGF_LE_CONTROLLER, 0x1f), HCI_OPCODE_HCI_LE_REMOTE_CONNECTION_PARAMETER_REQUEST_REPLY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x20),
HCI_OPCODE_HCI_LE_REMOTE_CONNECTION_PARAMETER_REQUEST_NEGATIVE_REPLY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x21),
HCI_OPCODE_HCI_LE_SET_DATA_LENGTH = HCI_OPCODE (OGF_LE_CONTROLLER, 0x22), HCI_OPCODE_HCI_LE_READ_SUGGESTED_DEFAULT_DATA_LENGTH = HCI_OPCODE (OGF_LE_CONTROLLER, 0x23), HCI_OPCODE_HCI_LE_WRITE_SUGGESTED_DEFAULT_DATA_LENGTH = HCI_OPCODE (OGF_LE_CONTROLLER, 0x24), HCI_OPCODE_HCI_LE_READ_LOCAL_P256_PUBLIC_KEY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x25), HCI_OPCODE_HCI_LE_GENERATE_DHKEY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x26), HCI_OPCODE_HCI_LE_ADD_DEVICE_TO_RESOLVING_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x27), HCI_OPCODE_HCI_LE_REMOVE_DEVICE_FROM_RESOLVING_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x28), HCI_OPCODE_HCI_LE_CLEAR_RESOLVING_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x29), HCI_OPCODE_HCI_LE_READ_RESOLVING_LIST_SIZE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x2A), HCI_OPCODE_HCI_LE_READ_PEER_RESOLVABLE_ADDRESS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x2B), HCI_OPCODE_HCI_LE_READ_LOCAL_RESOLVABLE_ADDRESS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x2C), HCI_OPCODE_HCI_LE_SET_ADDRESS_RESOLUTION_ENABLED = HCI_OPCODE (OGF_LE_CONTROLLER, 0x2D), HCI_OPCODE_HCI_LE_SET_RESOLVABLE_PRIVATE_ADDRESS_TIMEOUT = HCI_OPCODE (OGF_LE_CONTROLLER, 0x2E), HCI_OPCODE_HCI_LE_READ_MAXIMUM_DATA_LENGTH = HCI_OPCODE (OGF_LE_CONTROLLER, 0x2F), HCI_OPCODE_HCI_LE_READ_PHY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x30), HCI_OPCODE_HCI_LE_SET_DEFAULT_PHY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x31),
HCI_OPCODE_HCI_LE_SET_PHY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x32), HCI_OPCODE_HCI_LE_RECEIVER_TEST_V2 = HCI_OPCODE (OGF_LE_CONTROLLER, 0x33), HCI_OPCODE_HCI_LE_TRANSMITTER_TEST_V2 = HCI_OPCODE (OGF_LE_CONTROLLER, 0x34), HCI_OPCODE_HCI_LE_SET_ADVERTISING_SET_RANDOM_ADDRESS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x35), HCI_OPCODE_HCI_LE_SET_EXTENDED_ADVERTISING_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x36), HCI_OPCODE_HCI_LE_SET_EXTENDED_ADVERTISING_DATA = HCI_OPCODE (OGF_LE_CONTROLLER, 0x37), HCI_OPCODE_HCI_LE_SET_EXTENDED_SCAN_RESPONSE_DATA = HCI_OPCODE (OGF_LE_CONTROLLER, 0x38), HCI_OPCODE_HCI_LE_SET_EXTENDED_ADVERTISING_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x39), HCI_OPCODE_HCI_LE_READ_MAXIMUM_ADVERTISING_DATA_LENGTH = HCI_OPCODE (OGF_LE_CONTROLLER, 0x3a), HCI_OPCODE_HCI_LE_READ_NUMBER_OF_SUPPORTED_ADVERTISING_SETS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x3b),
HCI_OPCODE_HCI_LE_REMOVE_ADVERTISING_SET = HCI_OPCODE (OGF_LE_CONTROLLER, 0x3c), HCI_OPCODE_HCI_LE_CLEAR_ADVERTISING_SETS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x3d), HCI_OPCODE_HCI_LE_SET_PERIODIC_ADVERTISING_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x3e), HCI_OPCODE_HCI_LE_SET_PERIODIC_ADVERTISING_DATA = HCI_OPCODE (OGF_LE_CONTROLLER, 0x3f), HCI_OPCODE_HCI_LE_SET_PERIODIC_ADVERTISING_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x40), HCI_OPCODE_HCI_LE_SET_EXTENDED_SCAN_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x41), HCI_OPCODE_HCI_LE_SET_EXTENDED_SCAN_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x42), HCI_OPCODE_HCI_LE_EXTENDED_CREATE_CONNECTION = HCI_OPCODE (OGF_LE_CONTROLLER, 0x43), HCI_OPCODE_HCI_LE_PERIODIC_ADVERTISING_CREATE_SYNC = HCI_OPCODE (OGF_LE_CONTROLLER, 0x44), HCI_OPCODE_HCI_LE_PERIODIC_ADVERTISING_CREATE_SYNC_CANCEL = HCI_OPCODE (OGF_LE_CONTROLLER, 0x45), HCI_OPCODE_HCI_LE_PERIODIC_ADVERTISING_TERMINATE_SYNC = HCI_OPCODE (OGF_LE_CONTROLLER, 0x46), HCI_OPCODE_HCI_LE_ADD_DEVICE_TO_PERIODIC_ADVERTISER_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x47), HCI_OPCODE_HCI_LE_REMOVE_DEVICE_FROM_PERIODIC_ADVERTISER_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x48),
HCI_OPCODE_HCI_LE_CLEAR_PERIODIC_ADVERTISER_LIST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x49), HCI_OPCODE_HCI_LE_READ_PERIODIC_ADVERTISER_LIST_SIZE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x4a), HCI_OPCODE_HCI_LE_READ_TRANSMIT_POWER = HCI_OPCODE (OGF_LE_CONTROLLER, 0x4b), HCI_OPCODE_HCI_LE_READ_RF_PATH_COMPENSATION = HCI_OPCODE (OGF_LE_CONTROLLER, 0x4c), HCI_OPCODE_HCI_LE_WRITE_RF_PATH_COMPENSATION = HCI_OPCODE (OGF_LE_CONTROLLER, 0x4d), HCI_OPCODE_HCI_LE_SET_PRIVACY_MODE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x4e), HCI_OPCODE_HCI_LE_RECEIVER_TEST_V3 = HCI_OPCODE (OGF_LE_CONTROLLER, 0x4f), HCI_OPCODE_HCI_LE_TRANSMITTER_TEST_V3 = HCI_OPCODE (OGF_LE_CONTROLLER, 0x50), HCI_OPCODE_HCI_LE_SET_CONNECTIONLESS_CTE_TRANSMIT_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x51),
HCI_OPCODE_HCI_LE_SET_CONNECTIONLESS_CTE_TRANSMIT_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x52), HCI_OPCODE_HCI_LE_SET_CONNECTIONLESS_IQ_SAMPLING_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x53), HCI_OPCODE_HCI_LE_SET_CONNECTION_CTE_RECEIVE_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x54), HCI_OPCODE_HCI_LE_SET_CONNECTION_CTE_TRANSMIT_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x55), HCI_OPCODE_HCI_LE_CONNECTION_CTE_REQUEST_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x56), HCI_OPCODE_HCI_LE_CONNECTION_CTE_RESPONSE_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x57), HCI_OPCODE_HCI_LE_READ_ANTENNA_INFORMATION = HCI_OPCODE (OGF_LE_CONTROLLER, 0x58), HCI_OPCODE_HCI_LE_SET_PERIODIC_ADVERTISING_RECEIVE_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x59), HCI_OPCODE_HCI_LE_PERIODIC_ADVERTISING_SYNC_TRANSFER = HCI_OPCODE (OGF_LE_CONTROLLER, 0x5a), HCI_OPCODE_HCI_LE_PERIODIC_ADVERTISING_SET_INFO_TRANSFER = HCI_OPCODE (OGF_LE_CONTROLLER, 0x5b), HCI_OPCODE_HCI_LE_SET_PERIODIC_ADVERTISING_SYNC_TRANSFER_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x5c), HCI_OPCODE_HCI_LE_SET_DEFAULT_PERIODIC_ADVERTISING_SYNC_TRANSFER_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x5d),
HCI_OPCODE_HCI_LE_GENERATE_DHKEY_V2 = HCI_OPCODE (OGF_LE_CONTROLLER, 0x5e), HCI_OPCODE_HCI_LE_MODIFY_SLEEP_CLOCK_ACCURACY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x5f), HCI_OPCODE_HCI_LE_READ_BUFFER_SIZE_V2 = HCI_OPCODE (OGF_LE_CONTROLLER, 0x60), HCI_OPCODE_HCI_LE_READ_ISO_TX_SYNC = HCI_OPCODE (OGF_LE_CONTROLLER, 0x61), HCI_OPCODE_HCI_LE_SET_CIG_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x62), HCI_OPCODE_HCI_LE_SET_CIG_PARAMETERS_TEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x63), HCI_OPCODE_HCI_LE_CREATE_CIS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x64),
HCI_OPCODE_HCI_LE_REMOVE_CIG = HCI_OPCODE (OGF_LE_CONTROLLER, 0x65), HCI_OPCODE_HCI_LE_ACCEPT_CIS_REQUEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x66), HCI_OPCODE_HCI_LE_REJECT_CIS_REQUEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x67), HCI_OPCODE_HCI_LE_CREATE_BIG = HCI_OPCODE (OGF_LE_CONTROLLER, 0x68), HCI_OPCODE_HCI_LE_CREATE_BIG_TEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x69), HCI_OPCODE_HCI_LE_TERMINATE_BIG = HCI_OPCODE (OGF_LE_CONTROLLER, 0x6a), HCI_OPCODE_HCI_LE_BIG_CREATE_SYNC = HCI_OPCODE (OGF_LE_CONTROLLER, 0x6b), HCI_OPCODE_HCI_LE_BIG_TERMINATE_SYNC = HCI_OPCODE (OGF_LE_CONTROLLER, 0x6c), HCI_OPCODE_HCI_LE_REQUEST_PEER_SCA = HCI_OPCODE (OGF_LE_CONTROLLER, 0x6d), HCI_OPCODE_HCI_LE_SETUP_ISO_DATA_PATH = HCI_OPCODE (OGF_LE_CONTROLLER, 0x6e), HCI_OPCODE_HCI_LE_REMOVE_ISO_DATA_PATH = HCI_OPCODE (OGF_LE_CONTROLLER, 0x6f), HCI_OPCODE_HCI_LE_ISO_TRANSMIT_TEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x70), HCI_OPCODE_HCI_LE_ISO_RECEIVE_TEST = HCI_OPCODE (OGF_LE_CONTROLLER, 0x71), HCI_OPCODE_HCI_LE_ISO_READ_TEST_COUNTERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x72), HCI_OPCODE_HCI_LE_ISO_TEST_END = HCI_OPCODE (OGF_LE_CONTROLLER, 0x73), HCI_OPCODE_HCI_LE_SET_HOST_FEATURE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x74), HCI_OPCODE_HCI_LE_READ_ISO_LINK_QUALITY = HCI_OPCODE (OGF_LE_CONTROLLER, 0x75), HCI_OPCODE_HCI_LE_ENHANCED_READ_TRANSMIT_POWER_LEVEL = HCI_OPCODE (OGF_LE_CONTROLLER, 0x76), HCI_OPCODE_HCI_LE_READ_REMOTE_TRANSMIT_POWER_LEVEL = HCI_OPCODE (OGF_LE_CONTROLLER, 0x77), HCI_OPCODE_HCI_LE_SET_PATH_LOSS_REPORTING_PARAMETERS = HCI_OPCODE (OGF_LE_CONTROLLER, 0x78), HCI_OPCODE_HCI_LE_SET_PATH_LOSS_REPORTING_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x79), HCI_OPCODE_HCI_LE_SET_TRANSMIT_POWER_REPORTING_ENABLE = HCI_OPCODE (OGF_LE_CONTROLLER, 0x7a), HCI_OPCODE_HCI_LE_TRANSMITTER_TEST_V4 = HCI_OPCODE (OGF_LE_CONTROLLER, 0x7B), HCI_OPCODE_HCI_BCM_WRITE_SCO_PCM_INT = HCI_OPCODE (0x3f, 0x1c),
HCI_OPCODE_HCI_BCM_SET_SLEEP_MODE = HCI_OPCODE (0x3f, 0x27), HCI_OPCODE_HCI_BCM_WRITE_I2SPCM_INTERFACE_PARAM = HCI_OPCODE (0x3f, 0x6d), HCI_OPCODE_HCI_BCM_ENABLE_WBS = HCI_OPCODE(0x3f, 0x7e),
HCI_OPCODE_HCI_BCM_WRITE_TX_POWER_TABLE = HCI_OPCODE (0x3f, 0x1C9),
HCI_OPCODE_HCI_BCM_SET_TX_PWR = HCI_OPCODE (0x3f, 0x1A5),
HCI_OPCODE_HCI_TI_VS_CONFIGURE_DDIP = 0xFD55,
HCI的常用接口：
hci_accept_connection_request
hci_accept_synchronous_connection
hci_authentication_requested
hci_create_connection
hci_delete_stored_link_key
hci_disconnect hci_io_capability_request_negative_reply hci_io_capability_request_reply
hci_le_add_device_to_white_list
hci_le_connection_update
hci_le_create_connection
hci_le_create_connection_cancel
hci_le_encrypt
hci_le_long_term_key_negative_reply
hci_le_long_term_key_request_reply
hci_le_rand hci_le_read_buffer_size
hci_le_read_white_list_size
hci_le_remove_device_from_white_list
hci_le_set_advertise_enable
hci_le_set_advertising_data
hci_le_set_advertising_parameters
hci_le_set_random_address
hci_le_set_scan_enable
hci_le_set_scan_parameters
hci_le_set_scan_response_data
hci_le_start_encryption
hci_link_key_request_negative_reply
hci_link_key_request_reply
hci_pin_code_request_negative_reply
hci_read_bd_addr hci_read_buffer_size
hci_read_local_supported_commands
hci_read_local_supported_features
hci_read_local_version_information hci_read_remote_supported_features_command
hci_reject_connection_request
hci_reset
hci_set_connection_encryption
hci_set_event_mask
hci_setup_synchronous_connection
hci_user_confirmation_request_reply
hci_user_passkey_request_reply
hci_write_class_of_device
hci_write_default_erroneous_data_reporting
hci_write_extended_inquiry_response
hci_write_inquiry_mode
hci_write_le_host_supported
hci_write_local_name
hci_write_page_timeout
hci_write_scan_enable
hci_write_simple_pairing_mode
hci_write_synchronous_flow_control_enable
总结：HCI提供最基础的蓝牙芯片功能，通过这些功能上层其他模块包装了各种各样的Profiles提供给应用开发。