/* * Copyright (C) 2012 The Android Open Source Project * * 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 ANDROID_INCLUDE_BLUETOOTH_H #define ANDROID_INCLUDE_BLUETOOTH_H #include #include #include #include #include __BEGIN_DECLS /** * The Bluetooth Hardware Module ID */ #define BT_HARDWARE_MODULE_ID "bluetooth" #define BT_STACK_MODULE_ID "bluetooth" #define BT_STACK_TEST_MODULE_ID "bluetooth_test" /* Bluetooth profile interface IDs */ #define BT_PROFILE_HANDSFREE_ID "handsfree" #define BT_PROFILE_HANDSFREE_CLIENT_ID "handsfree_client" #define BT_PROFILE_ADVANCED_AUDIO_ID "a2dp" #define BT_PROFILE_ADVANCED_AUDIO_SINK_ID "a2dp_sink" #define BT_PROFILE_HEALTH_ID "health" #define BT_PROFILE_SOCKETS_ID "socket" #define BT_PROFILE_HIDHOST_ID "hidhost" #define BT_PROFILE_PAN_ID "pan" #define BT_PROFILE_MAP_CLIENT_ID "map_client" #define BT_PROFILE_SDP_CLIENT_ID "sdp" #define BT_PROFILE_GATT_ID "gatt" #define BT_PROFILE_AV_RC_ID "avrcp" #define BT_PROFILE_AV_RC_CTRL_ID "avrcp_ctrl" /** Bluetooth Address */ typedef struct { uint8_t address[6]; } __attribute__((packed))bt_bdaddr_t; /** Bluetooth Device Name */ typedef struct { uint8_t name[249]; } __attribute__((packed))bt_bdname_t; /** Bluetooth Adapter Visibility Modes*/ typedef enum { BT_SCAN_MODE_NONE, BT_SCAN_MODE_CONNECTABLE, BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE } bt_scan_mode_t; /** Bluetooth Adapter State */ typedef enum { BT_STATE_OFF, BT_STATE_ON } bt_state_t; /** Bluetooth Error Status */ /** We need to build on this */ typedef enum { BT_STATUS_SUCCESS, BT_STATUS_FAIL, BT_STATUS_NOT_READY, BT_STATUS_NOMEM, BT_STATUS_BUSY, BT_STATUS_DONE, /* request already completed */ BT_STATUS_UNSUPPORTED, BT_STATUS_PARM_INVALID, BT_STATUS_UNHANDLED, BT_STATUS_AUTH_FAILURE, BT_STATUS_RMT_DEV_DOWN, BT_STATUS_AUTH_REJECTED, BT_STATUS_JNI_ENVIRONMENT_ERROR, BT_STATUS_JNI_THREAD_ATTACH_ERROR, BT_STATUS_WAKELOCK_ERROR } bt_status_t; /** Bluetooth PinKey Code */ typedef struct { uint8_t pin[16]; } __attribute__((packed))bt_pin_code_t; typedef struct { uint8_t status; uint8_t ctrl_state; /* stack reported state */ uint64_t tx_time; /* in ms */ uint64_t rx_time; /* in ms */ uint64_t idle_time; /* in ms */ uint64_t energy_used; /* a product of mA, V and ms */ } __attribute__((packed))bt_activity_energy_info; typedef struct { int32_t app_uid; uint64_t tx_bytes; uint64_t rx_bytes; } __attribute__((packed))bt_uid_traffic_t; /** Bluetooth Adapter Discovery state */ typedef enum { BT_DISCOVERY_STOPPED, BT_DISCOVERY_STARTED } bt_discovery_state_t; /** Bluetooth ACL connection state */ typedef enum { BT_ACL_STATE_CONNECTED, BT_ACL_STATE_DISCONNECTED } bt_acl_state_t; /** Bluetooth 128-bit UUID */ typedef struct { uint8_t uu[16]; } bt_uuid_t; /** Bluetooth SDP service record */ typedef struct { bt_uuid_t uuid; uint16_t channel; char name[256]; // what's the maximum length } bt_service_record_t; /** Bluetooth Remote Version info */ typedef struct { int version; int sub_ver; int manufacturer; } bt_remote_version_t; typedef struct { uint16_t version_supported; uint8_t local_privacy_enabled; uint8_t max_adv_instance; uint8_t rpa_offload_supported; uint8_t max_irk_list_size; uint8_t max_adv_filter_supported; uint8_t activity_energy_info_supported; uint16_t scan_result_storage_size; uint16_t total_trackable_advertisers; bool extended_scan_support; bool debug_logging_supported; }bt_local_le_features_t; /* Bluetooth Adapter and Remote Device property types */ typedef enum { /* Properties common to both adapter and remote device */ /** * Description - Bluetooth Device Name * Access mode - Adapter name can be GET/SET. Remote device can be GET * Data type - bt_bdname_t */ BT_PROPERTY_BDNAME = 0x1, /** * Description - Bluetooth Device Address * Access mode - Only GET. * Data type - bt_bdaddr_t */ BT_PROPERTY_BDADDR, /** * Description - Bluetooth Service 128-bit UUIDs * Access mode - Only GET. * Data type - Array of bt_uuid_t (Array size inferred from property length). */ BT_PROPERTY_UUIDS, /** * Description - Bluetooth Class of Device as found in Assigned Numbers * Access mode - Only GET. * Data type - uint32_t. */ BT_PROPERTY_CLASS_OF_DEVICE, /** * Description - Device Type - BREDR, BLE or DUAL Mode * Access mode - Only GET. * Data type - bt_device_type_t */ BT_PROPERTY_TYPE_OF_DEVICE, /** * Description - Bluetooth Service Record * Access mode - Only GET. * Data type - bt_service_record_t */ BT_PROPERTY_SERVICE_RECORD, /* Properties unique to adapter */ /** * Description - Bluetooth Adapter scan mode * Access mode - GET and SET * Data type - bt_scan_mode_t. */ BT_PROPERTY_ADAPTER_SCAN_MODE, /** * Description - List of bonded devices * Access mode - Only GET. * Data type - Array of bt_bdaddr_t of the bonded remote devices * (Array size inferred from property length). */ BT_PROPERTY_ADAPTER_BONDED_DEVICES, /** * Description - Bluetooth Adapter Discovery timeout (in seconds) * Access mode - GET and SET * Data type - uint32_t */ BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT, /* Properties unique to remote device */ /** * Description - User defined friendly name of the remote device * Access mode - GET and SET * Data type - bt_bdname_t. */ BT_PROPERTY_REMOTE_FRIENDLY_NAME, /** * Description - RSSI value of the inquired remote device * Access mode - Only GET. * Data type - int32_t. */ BT_PROPERTY_REMOTE_RSSI, /** * Description - Remote version info * Access mode - SET/GET. * Data type - bt_remote_version_t. */ BT_PROPERTY_REMOTE_VERSION_INFO, /** * Description - Local LE features * Access mode - GET. * Data type - bt_local_le_features_t. */ BT_PROPERTY_LOCAL_LE_FEATURES, BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP = 0xFF, } bt_property_type_t; /** Bluetooth Adapter Property data structure */ typedef struct { bt_property_type_t type; int len; void *val; } bt_property_t; /** Bluetooth Out Of Band data for bonding */ typedef struct { uint8_t c192[16]; /* Simple Pairing Hash C-192 */ uint8_t r192[16]; /* Simple Pairing Randomizer R-192 */ uint8_t c256[16]; /* Simple Pairing Hash C-256 */ uint8_t r256[16]; /* Simple Pairing Randomizer R-256 */ uint8_t sm_tk[16]; /* Security Manager TK Value */ uint8_t le_sc_c[16]; /* LE Secure Connections Random Value */ uint8_t le_sc_r[16]; /* LE Secure Connections Random Value */ } bt_out_of_band_data_t; /** Bluetooth Device Type */ typedef enum { BT_DEVICE_DEVTYPE_BREDR = 0x1, BT_DEVICE_DEVTYPE_BLE, BT_DEVICE_DEVTYPE_DUAL } bt_device_type_t; /** Bluetooth Bond state */ typedef enum { BT_BOND_STATE_NONE, BT_BOND_STATE_BONDING, BT_BOND_STATE_BONDED } bt_bond_state_t; /** Bluetooth SSP Bonding Variant */ typedef enum { BT_SSP_VARIANT_PASSKEY_CONFIRMATION, BT_SSP_VARIANT_PASSKEY_ENTRY, BT_SSP_VARIANT_CONSENT, BT_SSP_VARIANT_PASSKEY_NOTIFICATION } bt_ssp_variant_t; #define BT_MAX_NUM_UUIDS 32 /** Bluetooth Interface callbacks */ /** Bluetooth Enable/Disable Callback. */ typedef void (*adapter_state_changed_callback)(bt_state_t state); /** GET/SET Adapter Properties callback */ /* TODO: For the GET/SET property APIs/callbacks, we may need a session * identifier to associate the call with the callback. This would be needed * whenever more than one simultaneous instance of the same adapter_type * is get/set. * * If this is going to be handled in the Java framework, then we do not need * to manage sessions here. */ typedef void (*adapter_properties_callback)(bt_status_t status, int num_properties, bt_property_t *properties); /** GET/SET Remote Device Properties callback */ /** TODO: For remote device properties, do not see a need to get/set * multiple properties - num_properties shall be 1 */ typedef void (*remote_device_properties_callback)(bt_status_t status, bt_bdaddr_t *bd_addr, int num_properties, bt_property_t *properties); /** New device discovered callback */ /** If EIR data is not present, then BD_NAME and RSSI shall be NULL and -1 * respectively */ typedef void (*device_found_callback)(int num_properties, bt_property_t *properties); /** Discovery state changed callback */ typedef void (*discovery_state_changed_callback)(bt_discovery_state_t state); /** Bluetooth Legacy PinKey Request callback */ typedef void (*pin_request_callback)(bt_bdaddr_t *remote_bd_addr, bt_bdname_t *bd_name, uint32_t cod, bool min_16_digit); /** Bluetooth SSP Request callback - Just Works & Numeric Comparison*/ /** pass_key - Shall be 0 for BT_SSP_PAIRING_VARIANT_CONSENT & * BT_SSP_PAIRING_PASSKEY_ENTRY */ /* TODO: Passkey request callback shall not be needed for devices with display * capability. We still need support this in the stack for completeness */ typedef void (*ssp_request_callback)(bt_bdaddr_t *remote_bd_addr, bt_bdname_t *bd_name, uint32_t cod, bt_ssp_variant_t pairing_variant, uint32_t pass_key); /** Bluetooth Bond state changed callback */ /* Invoked in response to create_bond, cancel_bond or remove_bond */ typedef void (*bond_state_changed_callback)(bt_status_t status, bt_bdaddr_t *remote_bd_addr, bt_bond_state_t state); /** Bluetooth ACL connection state changed callback */ typedef void (*acl_state_changed_callback)(bt_status_t status, bt_bdaddr_t *remote_bd_addr, bt_acl_state_t state); typedef enum { ASSOCIATE_JVM, DISASSOCIATE_JVM } bt_cb_thread_evt; /** Thread Associate/Disassociate JVM Callback */ /* Callback that is invoked by the callback thread to allow upper layer to attach/detach to/from * the JVM */ typedef void (*callback_thread_event)(bt_cb_thread_evt evt); /** Bluetooth Test Mode Callback */ /* Receive any HCI event from controller. Must be in DUT Mode for this callback to be received */ typedef void (*dut_mode_recv_callback)(uint16_t opcode, uint8_t *buf, uint8_t len); /* LE Test mode callbacks * This callback shall be invoked whenever the le_tx_test, le_rx_test or le_test_end is invoked * The num_packets is valid only for le_test_end command */ typedef void (*le_test_mode_callback)(bt_status_t status, uint16_t num_packets); /** Callback invoked when energy details are obtained */ /* Ctrl_state-Current controller state-Active-1,scan-2,or idle-3 state as defined by HCI spec. * If the ctrl_state value is 0, it means the API call failed * Time values-In milliseconds as returned by the controller * Energy used-Value as returned by the controller * Status-Provides the status of the read_energy_info API call * uid_data provides an array of bt_uid_traffic_t, where the array is terminated by an element with * app_uid set to -1. */ typedef void (*energy_info_callback)(bt_activity_energy_info *energy_info, bt_uid_traffic_t *uid_data); /** TODO: Add callbacks for Link Up/Down and other generic * notifications/callbacks */ /** Bluetooth DM callback structure. */ typedef struct { /** set to sizeof(bt_callbacks_t) */ size_t size; adapter_state_changed_callback adapter_state_changed_cb; adapter_properties_callback adapter_properties_cb; remote_device_properties_callback remote_device_properties_cb; device_found_callback device_found_cb; discovery_state_changed_callback discovery_state_changed_cb; pin_request_callback pin_request_cb; ssp_request_callback ssp_request_cb; bond_state_changed_callback bond_state_changed_cb; acl_state_changed_callback acl_state_changed_cb; callback_thread_event thread_evt_cb; dut_mode_recv_callback dut_mode_recv_cb; le_test_mode_callback le_test_mode_cb; energy_info_callback energy_info_cb; } bt_callbacks_t; typedef void (*alarm_cb)(void *data); typedef bool (*set_wake_alarm_callout)(uint64_t delay_millis, bool should_wake, alarm_cb cb, void *data); typedef int (*acquire_wake_lock_callout)(const char *lock_name); typedef int (*release_wake_lock_callout)(const char *lock_name); /** The set of functions required by bluedroid to set wake alarms and * grab wake locks. This struct is passed into the stack through the * |set_os_callouts| function on |bt_interface_t|. */ typedef struct { /* set to sizeof(bt_os_callouts_t) */ size_t size; set_wake_alarm_callout set_wake_alarm; acquire_wake_lock_callout acquire_wake_lock; release_wake_lock_callout release_wake_lock; } bt_os_callouts_t; /** NOTE: By default, no profiles are initialized at the time of init/enable. * Whenever the application invokes the 'init' API of a profile, then one of * the following shall occur: * * 1.) If Bluetooth is not enabled, then the Bluetooth core shall mark the * profile as enabled. Subsequently, when the application invokes the * Bluetooth 'enable', as part of the enable sequence the profile that were * marked shall be enabled by calling appropriate stack APIs. The * 'adapter_properties_cb' shall return the list of UUIDs of the * enabled profiles. * * 2.) If Bluetooth is enabled, then the Bluetooth core shall invoke the stack * profile API to initialize the profile and trigger a * 'adapter_properties_cb' with the current list of UUIDs including the * newly added profile's UUID. * * The reverse shall occur whenever the profile 'cleanup' APIs are invoked */ /** Represents the standard Bluetooth DM interface. */ typedef struct { /** set to sizeof(bt_interface_t) */ size_t size; /** * Opens the interface and provides the callback routines * to the implemenation of this interface. */ int (*init)(bt_callbacks_t* callbacks ); /** Enable Bluetooth. */ int (*enable)(bool guest_mode); /** Disable Bluetooth. */ int (*disable)(void); /** Closes the interface. */ void (*cleanup)(void); /** Get all Bluetooth Adapter properties at init */ int (*get_adapter_properties)(void); /** Get Bluetooth Adapter property of 'type' */ int (*get_adapter_property)(bt_property_type_t type); /** Set Bluetooth Adapter property of 'type' */ /* Based on the type, val shall be one of * bt_bdaddr_t or bt_bdname_t or bt_scanmode_t etc */ int (*set_adapter_property)(const bt_property_t *property); /** Get all Remote Device properties */ int (*get_remote_device_properties)(bt_bdaddr_t *remote_addr); /** Get Remote Device property of 'type' */ int (*get_remote_device_property)(bt_bdaddr_t *remote_addr, bt_property_type_t type); /** Set Remote Device property of 'type' */ int (*set_remote_device_property)(bt_bdaddr_t *remote_addr, const bt_property_t *property); /** Get Remote Device's service record for the given UUID */ int (*get_remote_service_record)(bt_bdaddr_t *remote_addr, bt_uuid_t *uuid); /** Start SDP to get remote services */ int (*get_remote_services)(bt_bdaddr_t *remote_addr); /** Start Discovery */ int (*start_discovery)(void); /** Cancel Discovery */ int (*cancel_discovery)(void); /** Create Bluetooth Bonding */ int (*create_bond)(const bt_bdaddr_t *bd_addr, int transport); /** Create Bluetooth Bond using out of band data */ int (*create_bond_out_of_band)(const bt_bdaddr_t *bd_addr, int transport, const bt_out_of_band_data_t *oob_data); /** Remove Bond */ int (*remove_bond)(const bt_bdaddr_t *bd_addr); /** Cancel Bond */ int (*cancel_bond)(const bt_bdaddr_t *bd_addr); /** * Get the connection status for a given remote device. * return value of 0 means the device is not connected, * non-zero return status indicates an active connection. */ int (*get_connection_state)(const bt_bdaddr_t *bd_addr); /** BT Legacy PinKey Reply */ /** If accept==FALSE, then pin_len and pin_code shall be 0x0 */ int (*pin_reply)(const bt_bdaddr_t *bd_addr, uint8_t accept, uint8_t pin_len, bt_pin_code_t *pin_code); /** BT SSP Reply - Just Works, Numeric Comparison and Passkey * passkey shall be zero for BT_SSP_VARIANT_PASSKEY_COMPARISON & * BT_SSP_VARIANT_CONSENT * For BT_SSP_VARIANT_PASSKEY_ENTRY, if accept==FALSE, then passkey * shall be zero */ int (*ssp_reply)(const bt_bdaddr_t *bd_addr, bt_ssp_variant_t variant, uint8_t accept, uint32_t passkey); /** Get Bluetooth profile interface */ const void* (*get_profile_interface) (const char *profile_id); /** Bluetooth Test Mode APIs - Bluetooth must be enabled for these APIs */ /* Configure DUT Mode - Use this mode to enter/exit DUT mode */ int (*dut_mode_configure)(uint8_t enable); /* Send any test HCI (vendor-specific) command to the controller. Must be in DUT Mode */ int (*dut_mode_send)(uint16_t opcode, uint8_t *buf, uint8_t len); /** BLE Test Mode APIs */ /* opcode MUST be one of: LE_Receiver_Test, LE_Transmitter_Test, LE_Test_End */ int (*le_test_mode)(uint16_t opcode, uint8_t *buf, uint8_t len); /* enable or disable bluetooth HCI snoop log */ int (*config_hci_snoop_log)(uint8_t enable); /** Sets the OS call-out functions that bluedroid needs for alarms and wake locks. * This should be called immediately after a successful |init|. */ int (*set_os_callouts)(bt_os_callouts_t *callouts); /** Read Energy info details - return value indicates BT_STATUS_SUCCESS or BT_STATUS_NOT_READY * Success indicates that the VSC command was sent to controller */ int (*read_energy_info)(); /** * Native support for dumpsys function * Function is synchronous and |fd| is owned by caller. * |arguments| are arguments which may affect the output, encoded as * UTF-8 strings. */ void (*dump)(int fd, const char **arguments); /** * Clear /data/misc/bt_config.conf and erase all stored connections */ int (*config_clear)(void); /** * Clear (reset) the dynamic portion of the device interoperability database. */ void (*interop_database_clear)(void); /** * Add a new device interoperability workaround for a remote device whose * first |len| bytes of the its device address match |addr|. * NOTE: |feature| has to match an item defined in interop_feature_t (interop.h). */ void (*interop_database_add)(uint16_t feature, const bt_bdaddr_t *addr, size_t len); } bt_interface_t; /** TODO: Need to add APIs for Service Discovery, Service authorization and * connection management. Also need to add APIs for configuring * properties of remote bonded devices such as name, UUID etc. */ typedef struct { struct hw_device_t common; const bt_interface_t* (*get_bluetooth_interface)(); } bluetooth_device_t; typedef bluetooth_device_t bluetooth_module_t; __END_DECLS #endif /* ANDROID_INCLUDE_BLUETOOTH_H */