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/**
  @headerfile:    gap.h
  $Date:  
  $Revision:  

*/


#ifndef GAP_H
#define GAP_H

#ifdef __cplusplus
extern "C"
{
#endif

/*-------------------------------------------------------------------
 * INCLUDES
 */
#include "bcomdef.h"
#include "OSAL.h"
#include "sm.h"

/*-------------------------------------------------------------------
 * MACROS
 */

/*-------------------------------------------------------------------
 * CONSTANTS
 */

/** @defgroup BLE_GAP_DEFINES BLE GAP Constants and Structures
 * @{
 */

/** @defgroup GAP_MSG_EVENT_DEFINES GAP Message IDs
 * @{
 */
#define GAP_DEVICE_INIT_DONE_EVENT            0x00 //!< Sent when the Device Initialization is complete.  This event is sent as an OSAL message defined as gapDeviceInitDoneEvent_t.
#define GAP_DEVICE_DISCOVERY_EVENT            0x01 //!< Sent when the Device Discovery Process is complete. This event is sent as an OSAL message defined as gapDevDiscEvent_t.
#define GAP_ADV_DATA_UPDATE_DONE_EVENT        0x02 //!< Sent when the Advertising Data or SCAN_RSP Data has been updated. This event is sent as an OSAL message defined as gapAdvDataUpdateEvent_t.
#define GAP_MAKE_DISCOVERABLE_DONE_EVENT      0x03 //!< Sent when the Make Discoverable Request is complete. This event is sent as an OSAL message defined as gapMakeDiscoverableRspEvent_t.
#define GAP_END_DISCOVERABLE_DONE_EVENT       0x04 //!< Sent when the Advertising has ended. This event is sent as an OSAL message defined as gapEndDiscoverableRspEvent_t.
#define GAP_LINK_ESTABLISHED_EVENT            0x05 //!< Sent when the Establish Link Request is complete. This event is sent as an OSAL message defined as gapEstLinkReqEvent_t.
#define GAP_LINK_TERMINATED_EVENT             0x06 //!< Sent when a connection was terminated. This event is sent as an OSAL message defined as gapTerminateLinkEvent_t.
#define GAP_LINK_PARAM_UPDATE_EVENT           0x07 //!< Sent when an Update Parameters Event is received. This event is sent as an OSAL message defined as gapLinkUpdateEvent_t.
#define GAP_RANDOM_ADDR_CHANGED_EVENT         0x08 //!< Sent when a random address was changed. This event is sent as an OSAL message defined as gapRandomAddrEvent_t.
#define GAP_SIGNATURE_UPDATED_EVENT           0x09 //!< Sent when the device's signature counter is updated. This event is sent as an OSAL message defined as gapSignUpdateEvent_t.
#define GAP_AUTHENTICATION_COMPLETE_EVENT     0x0A //!< Sent when the Authentication (pairing) process is complete. This event is sent as an OSAL message defined as gapAuthCompleteEvent_t.
#define GAP_PASSKEY_NEEDED_EVENT              0x0B //!< Sent when a Passkey is needed.  This is part of the pairing process. This event is sent as an OSAL message defined as gapPasskeyNeededEvent_t.
#define GAP_SLAVE_REQUESTED_SECURITY_EVENT    0x0C //!< Sent when a Slave Security Request is received. This event is sent as an OSAL message defined as gapSlaveSecurityReqEvent_t.
#define GAP_DEVICE_INFO_EVENT                 0x0D //!< Sent during the Device Discovery Process when a device is discovered. This event is sent as an OSAL message defined as gapDeviceInfoEvent_t.
#define GAP_BOND_COMPLETE_EVENT               0x0E //!< Sent when the bonding(bound) process is complete. This event is sent as an OSAL message defined as gapBondCompleteEvent_t.
#define GAP_PAIRING_REQ_EVENT                 0x0F //!< Sent when an unexpected Pairing Request is received. This event is sent as an OSAL message defined as gapPairingReqEvent_t.
/** @} End GAP_MSG_EVENT_DEFINES */

/** @defgroup GAP_CONN_HANDLE_DEFINES GAP Special Connection Handles
 * Used by GAP_TerminateLinkReq()
 * @{
 */
#define GAP_CONNHANDLE_INIT     0xFFFE  //!< terminates a link create
#define GAP_CONNHANDLE_ALL      0xFFFF  //!< terminates all links for the matching task ID.
/** @} End GAP_CONN_HANDLE_DEFINES */

/** @defgroup GAP_PROFILE_ROLE_DEFINES GAP Profile Roles
 * Bit mask values
 * @{
 */
#define GAP_PROFILE_BROADCASTER   0x01 //!< A device that sends advertising events only.
#define GAP_PROFILE_OBSERVER      0x02 //!< A device that receives advertising events only.
#define GAP_PROFILE_PERIPHERAL    0x04 //!< A device that accepts the establishment of an LE physical link using the connection establishment procedure
#define GAP_PROFILE_CENTRAL       0x08 //!< A device that supports the Central role initiates the establishment of a physical connection
/** @} End GAP_PROFILE_ROLE_DEFINES */

/**
 * @defgroup GAP_PARAMETER_ID_DEFINES GAP Parameter IDs
 * Used in place of gapParamIDs_t.
 * @{
 */
// Timers
#define TGAP_GEN_DISC_ADV_MIN          0  //!< Minimum time to remain advertising, when in Discoverable mode (mSec).  Setting this parameter to 0 turns off the timeout (default).
#define TGAP_LIM_ADV_TIMEOUT           1  //!< Maximum time to remain advertising, when in Limited Discoverable mode. In seconds (default 180 seconds)
#define TGAP_GEN_DISC_SCAN             2  //!< Minimum time to perform scanning, when performing General Discovery proc (mSec)
#define TGAP_LIM_DISC_SCAN             3  //!< Minimum time to perform scanning, when performing Limited Discovery proc (mSec)
#define TGAP_CONN_EST_ADV_TIMEOUT      4  //!< Advertising timeout, when performing Connection Establishment proc (mSec)
#define TGAP_CONN_PARAM_TIMEOUT        5  //!< Link Layer connection parameter update notification timer, connection parameter update proc (mSec)

// Constants
#define TGAP_LIM_DISC_ADV_INT_MIN      6  //!< Minimum advertising interval, when in limited discoverable mode (n * 0.625 mSec)
#define TGAP_LIM_DISC_ADV_INT_MAX      7  //!< Maximum advertising interval, when in limited discoverable mode (n * 0.625 mSec)
#define TGAP_GEN_DISC_ADV_INT_MIN      8  //!< Minimum advertising interval, when in General discoverable mode (n * 0.625 mSec)
#define TGAP_GEN_DISC_ADV_INT_MAX      9  //!< Maximum advertising interval, when in General discoverable mode (n * 0.625 mSec)
#define TGAP_CONN_ADV_INT_MIN         10  //!< Minimum advertising interval, when in Connectable mode (n * 0.625 mSec)
#define TGAP_CONN_ADV_INT_MAX         11  //!< Maximum advertising interval, when in Connectable mode (n * 0.625 mSec)
#define TGAP_CONN_SCAN_INT            12  //!< Scan interval used during Link Layer Initiating state, when in Connectable mode (n * 0.625 mSec)
#define TGAP_CONN_SCAN_WIND           13  //!< Scan window used during Link Layer Initiating state, when in Connectable mode (n * 0.625 mSec)
#define TGAP_CONN_HIGH_SCAN_INT       14  //!< Scan interval used during Link Layer Initiating state, when in Connectable mode, high duty scan cycle scan paramaters (n * 0.625 mSec)
#define TGAP_CONN_HIGH_SCAN_WIND      15  //!< Scan window used during Link Layer Initiating state, when in Connectable mode, high duty scan cycle scan paramaters (n * 0.625 mSec)
#define TGAP_GEN_DISC_SCAN_INT        16  //!< Scan interval used during Link Layer Scanning state, when in General Discovery proc (n * 0.625 mSec)
#define TGAP_GEN_DISC_SCAN_WIND       17  //!< Scan window used during Link Layer Scanning state, when in General Discovery proc (n * 0.625 mSec)
#define TGAP_LIM_DISC_SCAN_INT        18  //!< Scan interval used during Link Layer Scanning state, when in Limited Discovery proc (n * 0.625 mSec)
#define TGAP_LIM_DISC_SCAN_WIND       19  //!< Scan window used during Link Layer Scanning state, when in Limited Discovery proc (n * 0.625 mSec)
#define TGAP_CONN_EST_ADV             20  //!< Advertising interval, when using Connection Establishment proc (n * 0.625 mSec). Obsolete - Do not use.
#define TGAP_CONN_EST_INT_MIN         21  //!< Minimum Link Layer connection interval, when using Connection Establishment proc (n * 1.25 mSec)
#define TGAP_CONN_EST_INT_MAX         22  //!< Maximum Link Layer connection interval, when using Connection Establishment proc (n * 1.25 mSec)
#define TGAP_CONN_EST_SCAN_INT        23  //!< Scan interval used during Link Layer Initiating state, when using Connection Establishment proc (n * 0.625 mSec)
#define TGAP_CONN_EST_SCAN_WIND       24  //!< Scan window used during Link Layer Initiating state, when using Connection Establishment proc (n * 0.625 mSec)
#define TGAP_CONN_EST_SUPERV_TIMEOUT  25  //!< Link Layer connection supervision timeout, when using Connection Establishment proc (n * 10 mSec)
#define TGAP_CONN_EST_LATENCY         26  //!< Link Layer connection slave latency, when using Connection Establishment proc (in number of connection events)
#define TGAP_CONN_EST_MIN_CE_LEN      27  //!< Local informational parameter about min len of connection needed, when using Connection Establishment proc (n * 0.625 mSec)
#define TGAP_CONN_EST_MAX_CE_LEN      28  //!< Local informational parameter about max len of connection needed, when using Connection Establishment proc (n * 0.625 mSec)
#define TGAP_PRIVATE_ADDR_INT         29  //!< Minimum Time Interval between private (resolvable) address changes. In minutes (default 15 minutes)
#define TGAP_CONN_PAUSE_CENTRAL       30  //!< Central idle timer. In seconds (default 1 second)
#define TGAP_CONN_PAUSE_PERIPHERAL    31  //!< Minimum time upon connection establishment before the peripheral starts a connection update procedure. In seconds (default 5 seconds)

// Proprietary
#define TGAP_SM_TIMEOUT               32  //!< SM Message Timeout (milliseconds). Default 30 seconds.
#define TGAP_SM_MIN_KEY_LEN           33  //!< SM Minimum Key Length supported. Default 7.
#define TGAP_SM_MAX_KEY_LEN           34  //!< SM Maximum Key Length supported. Default 16.
#define TGAP_FILTER_ADV_REPORTS       35  //!< Filter duplicate advertising reports. Default TRUE.
#define TGAP_SCAN_RSP_RSSI_MIN        36  //!< Minimum RSSI required for scan responses to be reported to the app. Default -127.
#define TGAP_REJECT_CONN_PARAMS       37  //!< Whether or not to reject Connection Parameter Update Request received on Central device. Default FALSE.

#if !defined ( TESTMODES )
  #define TGAP_AUTH_TASK_ID           38  //!< Task ID override for Task Authentication control (for stack internal use only)
  #define TGAP_PARAMID_MAX            39  //!< ID MAX-valid Parameter ID
#else
  #define TGAP_GAP_TESTCODE           38  //!< GAP TestCodes - puts GAP into a test mode
  #define TGAP_SM_TESTCODE            39  //!< SM TestCodes - puts SM into a test mode
  #define TGAP_AUTH_TASK_ID           40  //!< Task ID override for Task Authentication control (for stack internal use only)
  #define TGAP_PARAMID_MAX            41  //!< ID MAX-valid Parameter ID

  #define TGAP_GATT_TESTCODE          100 //!< GATT TestCodes - puts GATT into a test mode (paramValue maintained by GATT)
  #define TGAP_ATT_TESTCODE           101 //!< ATT TestCodes - puts ATT into a test mode (paramValue maintained by ATT)
  #define TGAP_GGS_TESTCODE           102 //!< GGS TestCodes - puts GGS into a test mode (paramValue maintained by GGS)
#endif

/** @} End GAP_PARAMETER_ID_DEFINES */

/** @defgroup GAP_DEVDISC_MODE_DEFINES GAP Device Discovery Modes
 * @{
 */
#define DEVDISC_MODE_NONDISCOVERABLE  0x00    //!< No discoverable setting
#define DEVDISC_MODE_GENERAL          0x01    //!< General Discoverable devices
#define DEVDISC_MODE_LIMITED          0x02    //!< Limited Discoverable devices
#define DEVDISC_MODE_ALL              0x03    //!< Not filtered
/** @} End GAP_DEVDISC_MODE_DEFINES */

/** @defgroup GAP_ADDR_TYPE_DEFINES GAP Address Types
 * @{
 */
#define ADDRTYPE_PUBLIC               0x00  //!< Use the BD_ADDR
#define ADDRTYPE_STATIC               0x01  //!< Static address
#define ADDRTYPE_PRIVATE_NONRESOLVE   0x02  //!< Generate Non-Resolvable Private Address
#define ADDRTYPE_PRIVATE_RESOLVE      0x03  //!< Generate Resolvable Private Address
/** @} End GAP_ADDR_TYPE_DEFINES */

/** @defgroup GAP_ADVERTISEMENT_TYPE_DEFINES GAP Advertising Event Types
 * for eventType field in gapAdvertisingParams_t
 * @{
 */
#define GAP_ADTYPE_ADV_IND                0x00  //!< Connectable undirected advertisement
#define GAP_ADTYPE_ADV_HDC_DIRECT_IND     0x01  //!< Connectable high duty cycle directed advertisement
#define GAP_ADTYPE_ADV_SCAN_IND           0x02  //!< Scannable undirected advertisement
#define GAP_ADTYPE_ADV_NONCONN_IND        0x03  //!< Non-Connectable undirected advertisement
#define GAP_ADTYPE_ADV_LDC_DIRECT_IND     0x04  //!< Connectable low duty cycle directed advertisement
/** @} End GAP_ADVERTISEMENT_TYPE_DEFINES */

/** @defgroup GAP_ADVERTISEMENT_REPORT_TYPE_DEFINES GAP Advertising Report Event Types
 * for eventType field in gapDevRec_t and gapDeviceInfoEvent_t
 * @{
 */
#define GAP_ADRPT_ADV_IND                 0x00  //!< Connectable undirected advertisement
#define GAP_ADRPT_ADV_DIRECT_IND          0x01  //!< Connectable directed advertisement
#define GAP_ADRPT_ADV_SCAN_IND            0x02  //!< Scannable undirected advertisement
#define GAP_ADRPT_ADV_NONCONN_IND         0x03  //!< Non-Connectable undirected advertisement
#define GAP_ADRPT_SCAN_RSP                0x04  //!< Scan Response
/** @} End GAP_ADVERTISEMENT_REPORT_TYPE_DEFINES */

/** @defgroup GAP_FILTER_POLICY_DEFINES GAP Advertiser Filter Scan Parameters
 * @{
 */
#define GAP_FILTER_POLICY_ALL         0x00 //!< Allow Scan Request from Any, Allow Connect Request from Any (default).
#define GAP_FILTER_POLICY_WHITE_SCAN  0x01 //!< Allow Scan Request from White List Only, Allow Connect from Any
#define GAP_FILTER_POLICY_WHITE_CON   0x02 //!< Allow Scan Request from Any, Connect from White List Only
#define GAP_FILTER_POLICY_WHITE       0x03 //!< Allow Scan Request and Connect from White List Only
/** @} End GAP_FILTER_POLICY_DEFINES */

//! Advertiser Channel Map
#define ADV_CHANMAP_SIZE                 5

//! Maximum Pairing Passcode/Passkey value.  Range of a passkey can be 0 - 999,999.
#define GAP_PASSCODE_MAX                 999999

/** Sign Counter Initialized - Sign counter hasn't been used yet.  Used when setting up
 *  a connection's signing information.
 */
#define GAP_INIT_SIGN_COUNTER            0xFFFFFFFF

/** @defgroup GAP_ADVCHAN_DEFINES GAP Advertisement Channel Map
 * @{
 */
#define GAP_ADVCHAN_37  0x01  //!< Advertisement Channel 37
#define GAP_ADVCHAN_38  0x02  //!< Advertisement Channel 38
#define GAP_ADVCHAN_39  0x04  //!< Advertisement Channel 39
#define GAP_ADVCHAN_ALL (GAP_ADVCHAN_37 | GAP_ADVCHAN_38 | GAP_ADVCHAN_39) //!< All Advertisement Channels Enabled
/** @} End GAP_ADVCHAN_DEFINES */

/** @defgroup GAP_WHITELIST_DEFINES GAP White List Options
 * @{
 */
#define WL_NOTUSED    0x00    //!< White list not used but the advertiser's address in this command is used
#define WL_USED       0x01    //!< White list is used and the advertiser's address in this command is not used.
/** @} End GAP_WHITELIST_DEFINES */

/** @defgroup GAP_ADTYPE_DEFINES GAP Advertisment Data Types
 * These are the data type identifiers for the data tokens in the advertisement data field.
 * @{
 */
#define GAP_ADTYPE_FLAGS                        0x01 //!< Discovery Mode: @ref GAP_ADTYPE_FLAGS_MODES
#define GAP_ADTYPE_16BIT_MORE                   0x02 //!< Service: More 16-bit UUIDs available
#define GAP_ADTYPE_16BIT_COMPLETE               0x03 //!< Service: Complete list of 16-bit UUIDs
#define GAP_ADTYPE_32BIT_MORE                   0x04 //!< Service: More 32-bit UUIDs available
#define GAP_ADTYPE_32BIT_COMPLETE               0x05 //!< Service: Complete list of 32-bit UUIDs
#define GAP_ADTYPE_128BIT_MORE                  0x06 //!< Service: More 128-bit UUIDs available
#define GAP_ADTYPE_128BIT_COMPLETE              0x07 //!< Service: Complete list of 128-bit UUIDs
#define GAP_ADTYPE_LOCAL_NAME_SHORT             0x08 //!< Shortened local name
#define GAP_ADTYPE_LOCAL_NAME_COMPLETE          0x09 //!< Complete local name
#define GAP_ADTYPE_POWER_LEVEL                  0x0A //!< TX Power Level: 0xXX: -127 to +127 dBm
#define GAP_ADTYPE_OOB_CLASS_OF_DEVICE          0x0D //!< Simple Pairing OOB Tag: Class of device (3 octets)
#define GAP_ADTYPE_OOB_SIMPLE_PAIRING_HASHC     0x0E //!< Simple Pairing OOB Tag: Simple Pairing Hash C (16 octets)
#define GAP_ADTYPE_OOB_SIMPLE_PAIRING_RANDR     0x0F //!< Simple Pairing OOB Tag: Simple Pairing Randomizer R (16 octets)
#define GAP_ADTYPE_SM_TK                        0x10 //!< Security Manager TK Value
#define GAP_ADTYPE_SM_OOB_FLAG                  0x11 //!< Secutiry Manager OOB Flags
#define GAP_ADTYPE_SLAVE_CONN_INTERVAL_RANGE    0x12 //!< Min and Max values of the connection interval (2 octets Min, 2 octets Max) (0xFFFF indicates no conn interval min or max)
#define GAP_ADTYPE_SIGNED_DATA                  0x13 //!< Signed Data field
#define GAP_ADTYPE_SERVICES_LIST_16BIT          0x14 //!< Service Solicitation: list of 16-bit Service UUIDs
#define GAP_ADTYPE_SERVICES_LIST_128BIT         0x15 //!< Service Solicitation: list of 128-bit Service UUIDs
#define GAP_ADTYPE_SERVICE_DATA                 0x16 //!< Service Data
#define GAP_ADTYPE_APPEARANCE                   0x19 //!< Appearance
#define GAP_ADTYPE_MANUFACTURER_SPECIFIC        0xFF //!< Manufacturer Specific Data: first 2 octets contain the Company Identifier Code followed by the additional manufacturer specific data
/** @} End GAP_ADTYPE_DEFINES */

/** @defgroup GAP_ADTYPE_FLAGS_MODES GAP ADTYPE Flags Discovery Modes
 * @{
 */
#define GAP_ADTYPE_FLAGS_LIMITED                0x01 //!< Discovery Mode: LE Limited Discoverable Mode
#define GAP_ADTYPE_FLAGS_GENERAL                0x02 //!< Discovery Mode: LE General Discoverable Mode
#define GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED    0x04 //!< Discovery Mode: BR/EDR Not Supported
/** @} End GAP_ADTYPE_FLAGS_MODES */

/** @defgroup GAP_APPEARANCE_VALUES GAP Appearance Values
 * @{
 */
#define GAP_APPEARE_UNKNOWN                     0x0000 //!< Unknown
#define GAP_APPEARE_GENERIC_PHONE               0x0040 //!< Generic Phone
#define GAP_APPEARE_GENERIC_COMPUTER            0x0080 //!< Generic Computer
#define GAP_APPEARE_GENERIC_WATCH               0x00C0 //!< Generic Watch
#define GAP_APPEARE_WATCH_SPORTS                0x00C1 //!< Watch: Sports Watch
#define GAP_APPEARE_GENERIC_CLOCK               0x0100 //!< Generic Clock
#define GAP_APPEARE_GENERIC_DISPLAY             0x0140 //!< Generic Display
#define GAP_APPEARE_GENERIC_RC                  0x0180 //!< Generic Remote Control
#define GAP_APPEARE_GENERIC_EYE_GALSSES         0x01C0 //!< Generic Eye-glasses
#define GAP_APPEARE_GENERIC_TAG                 0x0200 //!< Generic Tag
#define GAP_APPEARE_GENERIC_KEYRING             0x0240 //!< Generic Keyring
#define GAP_APPEARE_GENERIC_MEDIA_PLAYER        0x0280 //!< Generic Media Player
#define GAP_APPEARE_GENERIC_BARCODE_SCANNER     0x02C0 //!< Generic Barcode Scanner
#define GAP_APPEARE_GENERIC_THERMOMETER         0x0300 //!< Generic Thermometer
#define GAP_APPEARE_GENERIC_THERMO_EAR          0x0301 //!< Thermometer: Ear
#define GAP_APPEARE_GENERIC_HR_SENSOR           0x0340 //!< Generic Heart rate Sensor
#define GAP_APPEARE_GENERIC_HRS_BELT            0x0341 //!< Heart Rate Sensor: Heart Rate Belt
#define GAP_APPEARE_GENERIC_BLOOD_PRESSURE      0x0380 //!< Generic Blood Pressure
#define GAP_APPEARE_GENERIC_BP_ARM              0x0381 //!< Blood Pressure: Arm
#define GAP_APPEARE_GENERIC_BP_WRIST            0x0382 //!< Blood Pressure: Wrist
#define GAP_APPEARE_GENERIC_HID                 0x03C0 //!< Generic Human Interface Device (HID)
#define GAP_APPEARE_HID_KEYBOARD                0x03C1 //!< HID Keyboard
#define GAP_APPEARE_HID_MOUSE                   0x03C2 //!< HID Mouse
#define GAP_APPEARE_HID_JOYSTIC                 0x03C3 //!< HID Joystick
#define GAP_APPEARE_HID_GAMEPAD                 0x03C4 //!< HID Gamepad
#define GAP_APPEARE_HID_DIGITIZER_TYABLET       0x03C5 //!< HID Digitizer Tablet
#define GAP_APPEARE_HID_DIGITAL_CARDREADER      0x03C6 //!< HID Card Reader
#define GAP_APPEARE_HID_DIGITAL_PEN             0x03C7 //!< HID Digital Pen
#define GAP_APPEARE_HID_BARCODE_SCANNER         0x03C8 //!< HID Barcode Scanner
/** @} End GAP_APPEARANCE_VALUES */

/*-------------------------------------------------------------------
 * TYPEDEFS - Initialization and Configuration
 */

/**
 * GAP Parameters IDs: @ref GAP_PARAMETER_ID_DEFINES
 */
typedef uint16 gapParamIDs_t;

/**
 * GAP event header format.
 */
typedef struct
{
  osal_event_hdr_t  hdr;           //!< GAP_MSG_EVENT and status
  uint8 opcode;                    //!< GAP type of command. Ref: @ref GAP_MSG_EVENT_DEFINES
} gapEventHdr_t;

/**
 * GAP_RANDOM_ADDR_CHANGED_EVENT message format.  This message is sent to the
 * app when the random address changes.
 */
typedef struct
{
  osal_event_hdr_t  hdr;              //!< GAP_MSG_EVENT and status
  uint8 opcode;                       //!< GAP_RANDOM_ADDR_CHANGED_EVENT
  uint8 addrType;                     //!< Address type: @ref GAP_ADDR_TYPE_DEFINES
  uint8 newRandomAddr[B_ADDR_LEN];    //!< the new calculated private addr
} gapRandomAddrEvent_t;

/**
 * Connection parameters for the peripheral device.  These numbers are used
 * to compare against connection events and request connection parameter
 * updates with the master.
 */
typedef struct
{
  /** Minimum value for the connection event (interval. 0x0006 - 0x0C80 * 1.25 ms) */
  uint16 intervalMin;
  /** Maximum value for the connection event (interval. 0x0006 - 0x0C80 * 1.25 ms) */
  uint16 intervalMax;
  /** Number of LL latency connection events (0x0000 - 0x03e8) */
  uint16 latency;
  /** Connection Timeout (0x000A - 0x0C80 * 10 ms) */
  uint16 timeout;
} gapPeriConnectParams_t;

/**
 * GAP_DEVICE_INIT_DONE_EVENT message format.  This message is sent to the
 * app when the Device Initialization is done [initiated by calling
 * GAP_DeviceInit()].
 */
typedef struct
{
  osal_event_hdr_t  hdr;              //!< GAP_MSG_EVENT and status
  uint8 opcode;                       //!< GAP_DEVICE_INIT_DONE_EVENT
  uint8 devAddr[B_ADDR_LEN];          //!< Device's BD_ADDR
  uint16 dataPktLen;                  //!< HC_LE_Data_Packet_Length
  uint8 numDataPkts;                  //!< HC_Total_Num_LE_Data_Packets
} gapDeviceInitDoneEvent_t;

/**
 * GAP_SIGNATURE_UPDATED_EVENT message format.  This message is sent to the
 * app when the signature counter has changed.  This message is to inform the
 * application in case it wants to save it to be restored on reboot or reconnect.
 * This message is sent to update a connection's signature counter and to update
 * this device's signature counter.  If devAddr == BD_ADDR, then this message pertains
 * to this device.
 */
typedef struct
{
  osal_event_hdr_t  hdr;              //!< GAP_MSG_EVENT and status
  uint8 opcode;                       //!< GAP_SIGNATURE_UPDATED_EVENT
  uint8 addrType;                     //!< Device's address type for devAddr
  uint8 devAddr[B_ADDR_LEN];          //!< Device's BD_ADDR, could be own address
  uint32 signCounter;                 //!< new Signed Counter
} gapSignUpdateEvent_t;

/**
 * GAP_DEVICE_INFO_EVENT message format.  This message is sent to the
 * app during a Device Discovery Request, when a new advertisement or scan
 * response is received.
 */
typedef struct
{
  osal_event_hdr_t  hdr;    //!< GAP_MSG_EVENT and status
  uint8 opcode;             //!< GAP_DEVICE_INFO_EVENT
  uint8 eventType;          //!< Advertisement Type: @ref GAP_ADVERTISEMENT_REPORT_TYPE_DEFINES
  uint8 addrType;           //!< address type: @ref GAP_ADDR_TYPE_DEFINES
  uint8 addr[B_ADDR_LEN];   //!< Address of the advertisement or SCAN_RSP
  int8 rssi;                //!< Advertisement or SCAN_RSP RSSI
  uint8 dataLen;            //!< Length (in bytes) of the data field (evtData)
  uint8 *pEvtData;          //!< Data field of advertisement or SCAN_RSP
} gapDeviceInfoEvent_t;

/*-------------------------------------------------------------------
 * TYPEDEFS - Device Discovery
 */

/**
 * Type of device discovery (Scan) to perform.
 */
typedef struct
{
  uint8 taskID;       //!< Requesting App's Task ID, used to return results
  uint8 mode;         //!< Discovery Mode: @ref GAP_DEVDISC_MODE_DEFINES
  uint8 activeScan;   //!< TRUE for active scanning
  uint8 whiteList;    //!< TRUE to only allow advertisements from devices in the white list.
} gapDevDiscReq_t;

/**
 * Type of device discovery (Scan) to perform.
 */
typedef struct
{
  uint8 eventType;        //!< Indicates advertising event type used by the advertiser: @ref GAP_ADVERTISEMENT_REPORT_TYPE_DEFINES
  uint8 addrType;         //!< Address Type: @ref GAP_ADDR_TYPE_DEFINES
  uint8 addr[B_ADDR_LEN]; //!< Device's Address
} gapDevRec_t;

/**
 * GAP_DEVICE_DISCOVERY_EVENT message format. This message is sent to the
 * Application after a scan is performed.
 */
typedef struct
{
  osal_event_hdr_t  hdr; //!< GAP_MSG_EVENT and status
  uint8 opcode;          //!< GAP_DEVICE_DISCOVERY_EVENT
  uint8 numDevs;         //!< Number of devices found during scan
  gapDevRec_t *pDevList; //!< array of device records
} gapDevDiscEvent_t;

/**
 * Advertising Parameters
 */
typedef struct
{
  uint8 eventType;          //!< Advertise Event Type: @ref GAP_ADVERTISEMENT_TYPE_DEFINES
  uint8 initiatorAddrType;  //!< Initiator's address type: @ref GAP_ADDR_TYPE_DEFINES
  uint8 initiatorAddr[B_ADDR_LEN];  //!< Initiator's addr - used only with connectable directed eventType (ADV_EVTTYPE_CONNECTABLE_DIRECTED).
  uint8 channelMap;         //!< Channel Map: Bit mask @ref GAP_ADVCHAN_DEFINES
  uint8 filterPolicy;       //!< Filer Policy: @ref GAP_FILTER_POLICY_DEFINES. Ignored when directed advertising is used.
} gapAdvertisingParams_t;

/**
 * GAP_MAKE_DISCOVERABLE_DONE_EVENT message format.  This message is sent to the
 * app when the Advertise config is complete.
 */
typedef struct
{
  osal_event_hdr_t  hdr; //!< GAP_MSG_EVENT and status
  uint8 opcode;          //!< GAP_MAKE_DISCOVERABLE_DONE_EVENT
  uint16 interval;       //!< actual advertising interval selected by controller
} gapMakeDiscoverableRspEvent_t;

/**
 * GAP_END_DISCOVERABLE_DONE_EVENT message format.  This message is sent to the
 * app when the Advertising has stopped.
 */
typedef struct
{
  osal_event_hdr_t  hdr; //!< GAP_MSG_EVENT and status
  uint8 opcode;          //!< GAP_END_DISCOVERABLE_DONE_EVENT
} gapEndDiscoverableRspEvent_t;

/**
 * GAP_ADV_DATA_UPDATE_DONE_EVENT message format.  This message is sent to the
 * app when Advertising Data Update is complete.
 */
typedef struct
{
  osal_event_hdr_t  hdr; //!< GAP_MSG_EVENT and status
  uint8 opcode;          //!< GAP_ADV_DATA_UPDATE_DONE_EVENT
  uint8 adType;          //!< TRUE if advertising data, FALSE if SCAN_RSP
} gapAdvDataUpdateEvent_t;

/*-------------------------------------------------------------------
 * TYPEDEFS - Link Establishment
 */

/**
 * Establish Link Request parameters
 */
typedef struct
{
  uint8 taskID;               //!< Requesting App/Profile's Task ID
  uint8 highDutyCycle;        //!< TRUE to high duty cycle scan, FALSE if not.
  uint8 whiteList;            //!< Determines use of the white list: @ref GAP_WHITELIST_DEFINES
  uint8 addrTypePeer;         //!< Address type of the advertiser: @ref GAP_ADDR_TYPE_DEFINES
  uint8 peerAddr[B_ADDR_LEN]; //!< Advertiser's address
} gapEstLinkReq_t;

/**
 * Update Link Parameters Request parameters
 */
typedef struct
{
  uint16 connectionHandle; //!< Connection handle of the update
  uint16 intervalMin;      //!< Minimum Connection Interval
  uint16 intervalMax;      //!< Maximum Connection Interval
  uint16 connLatency;      //!< Connection Latency
  uint16 connTimeout;      //!< Connection Timeout
} gapUpdateLinkParamReq_t;

/**
 * GAP_LINK_ESTABLISHED_EVENT message format.  This message is sent to the app
 * when the link request is complete.<BR>
 * <BR>
 * For an Observer, this message is sent to complete the Establish Link Request.<BR>
 * For a Peripheral, this message is sent to indicate that a link has been created.
 */
typedef struct
{
  osal_event_hdr_t  hdr;     //!< GAP_MSG_EVENT and status
  uint8 opcode;              //!< GAP_LINK_ESTABLISHED_EVENT
  uint8 devAddrType;         //!< Device address type: @ref GAP_ADDR_TYPE_DEFINES
  uint8 devAddr[B_ADDR_LEN]; //!< Device address of link
  uint16 connectionHandle;   //!< Connection Handle from controller used to ref the device
  uint16 connInterval;       //!< Connection Interval
  uint16 connLatency;        //!< Conenction Latency
  uint16 connTimeout;        //!< Connection Timeout
  uint8 clockAccuracy;       //!< Clock Accuracy
} gapEstLinkReqEvent_t;

/**
 * GAP_LINK_PARAM_UPDATE_EVENT message format.  This message is sent to the app
 * when the connection parameters update request is complete.
 */
typedef struct
{
  osal_event_hdr_t hdr;     //!< GAP_MSG_EVENT and status
  uint8 opcode;             //!< GAP_LINK_PARAM_UPDATE_EVENT
  uint8 status;             //!< bStatus_t
  uint16 connectionHandle;  //!< Connection handle of the update
  uint16 connInterval;      //!< Requested connection interval
  uint16 connLatency;       //!< Requested connection latency
  uint16 connTimeout;       //!< Requested connection timeout
} gapLinkUpdateEvent_t;

/**
 * GAP_LINK_TERMINATED_EVENT message format.  This message is sent to the
 * app when a link to a device is terminated.
 */
typedef struct
{
  osal_event_hdr_t  hdr;   //!< GAP_MSG_EVENT and status
  uint8 opcode;            //!< GAP_LINK_TERMINATED_EVENT
  uint16 connectionHandle; //!< connection Handle
  uint8 reason;            //!< termination reason from LL
} gapTerminateLinkEvent_t;

/*-------------------------------------------------------------------
 * TYPEDEFS - Authentication, Bounding and Pairing
 */

/**
 * GAP_PASSKEY_NEEDED_EVENT message format.  This message is sent to the
 * app when a Passkey is needed from the app's user interface.
 */
typedef struct
{
  osal_event_hdr_t  hdr;        //!< GAP_MSG_EVENT and status
  uint8 opcode;                 //!< GAP_PASSKEY_NEEDED_EVENT
  uint8 deviceAddr[B_ADDR_LEN]; //!< address of device to pair with, and could be either public or random.
  uint16 connectionHandle;      //!< Connection handle
  uint8 uiInputs;               //!< Pairing User Interface Inputs - Ask user to input passcode
  uint8 uiOutputs;              //!< Pairing User Interface Outputs - Display passcode
} gapPasskeyNeededEvent_t;

/**
 * GAP_AUTHENTICATION_COMPLETE_EVENT message format.  This message is sent to the app
 * when the authentication request is complete.
 */
typedef struct
{
  osal_event_hdr_t  hdr;           //!< GAP_MSG_EVENT and status
  uint8 opcode;                    //!< GAP_AUTHENTICATION_COMPLETE_EVENT
  uint16 connectionHandle;         //!< Connection Handle from controller used to ref the device
  uint8 authState;                 //!< TRUE if the pairing was authenticated (MITM)
  smSecurityInfo_t *pSecurityInfo; //!< BOUND - security information from this device
  smSigningInfo_t *pSigningInfo;   //!< Signing information
  smSecurityInfo_t *pDevSecInfo;   //!< BOUND - security information from connected device
  smIdentityInfo_t *pIdentityInfo; //!< BOUND - identity information
} gapAuthCompleteEvent_t;

/**
 * securityInfo and identityInfo are only used if secReqs.bondable == BOUND, which means that
 * the device is already bound and we should use the security information and keys.
 */
typedef struct
{
  uint16 connectionHandle;      //!< Connection Handle from controller,
  smLinkSecurityReq_t  secReqs; //!< Pairing Control info
} gapAuthParams_t;

/**
 * GAP_SLAVE_REQUESTED_SECURITY_EVENT message format.  This message is sent to the app
 * when a Slave Security Request is received.
 */
typedef struct
{
  osal_event_hdr_t  hdr;        //!< GAP_MSG_EVENT and status
  uint8 opcode;                 //!< GAP_SLAVE_REQUESTED_SECURITY_EVENT
  uint16 connectionHandle;      //!< Connection Handle
  uint8 deviceAddr[B_ADDR_LEN]; //!< address of device requesting security
  uint8 authReq;                //!< Authentication Requirements: Bit 2: MITM, Bits 0-1: bonding (0 - no bonding, 1 - bonding)

} gapSlaveSecurityReqEvent_t;

/**
 * GAP_BOND_COMPLETE_EVENT message format.  This message is sent to the
 * app when a bonding is complete.  This means that a key is loaded and the link is encrypted.
 */
typedef struct
{
  osal_event_hdr_t  hdr;   //!< GAP_MSG_EVENT and status
  uint8 opcode;            //!< GAP_BOND_COMPLETE_EVENT
  uint16 connectionHandle; //!< connection Handle
} gapBondCompleteEvent_t;

/**
 * Pairing Request fields - the parsed fields of the SMP Pairing Request command.
 */
typedef struct
{
  uint8 ioCap;         //!< Pairing Request ioCap field
  uint8 oobDataFlag;   //!< Pairing Request OOB Data Flag field
  uint8 authReq;       //!< Pairing Request Auth Req field
  uint8 maxEncKeySize; //!< Pairing Request Maximum Encryption Key Size field
  keyDist_t keyDist;   //!< Pairing Request Key Distribution field
} gapPairingReq_t;

/**
 * GAP_PAIRING_REQ_EVENT message format.<BR>
 * <BR>
 * This message is sent to the
 * app when an unexpected Pairing Request is received.  The application is
 * expected to setup for a Security Manager pairing/bonding.<BR>
 * <BR>
 * To setup an SM Pairing, the application should call GAP_Authenticate() with these "pairReq" fields.<BR>
 * <BR>
* NOTE: This message should only be sent to peripheral devices.
 */
typedef struct
{
  osal_event_hdr_t hdr;    //!< GAP_MSG_EVENT and status
  uint8 opcode;            //!< GAP_PAIRING_REQ_EVENT
  uint16 connectionHandle; //!< connection Handle
  gapPairingReq_t pairReq; //!< The Pairing Request fields received.
} gapPairingReqEvent_t;

/**
 * GAP Advertisement/Scan Response Data Token - These data items are stored as low byte first (OTA
 * format).  The data space for these items are passed in and maintained by
 * the calling application
 */
typedef struct
{
  uint8 adType;     //!< ADTYPE value: @ref GAP_ADTYPE_DEFINES
  uint8 attrLen;    //!< Number of bytes in the attribute data
  uint8 *pAttrData; //!< pointer to Attribute data
} gapAdvDataToken_t;

/** @} End BLE_GAP_DEFINES */

/*-------------------------------------------------------------------
 * GLOBAL VARIABLES
 */

/**
 * @defgroup GAP_API GAP API Functions
 *
 * @{
 */

/*-------------------------------------------------------------------
 * FUNCTIONS - Initialization and Configuation
 */

  /**
   * @brief       Called to setup the device.  Call just once on initialization.
   *
   *   NOTE: When initialization is complete, the calling app will be
   *         sent the GAP_DEVICE_INIT_DONE_EVENT
   *
   * @param       taskID - Default task ID to send events.
   * @param       profileRole - GAP Profile Roles: @ref GAP_PROFILE_ROLE_DEFINES
   * @param       maxScanResponses - maximum number to scan responses
   *                we can receive during a device discovery.
   * @param       pIRK - pointer to Identity Root Key, NULLKEY (all zeroes) if the app
   *                wants the GAP to generate the key.
   * @param       pSRK - pointer to Sign Resolving Key, NULLKEY if the app
   *                wants the GAP to generate the key.
   * @param       pSignCounter - 32 bit value used in the SM Signing
   *                algorithm that shall be initialized to zero and incremented
   *                with every new signing. This variable must also be maintained
   *                by the application.
   *
   * @return      SUCCESS - Processing, expect GAP_DEVICE_INIT_DONE_EVENT, <BR>
   *              INVALIDPARAMETER - for invalid profile role or role combination, <BR>
   *              bleIncorrectMode - trouble communicating with HCI
   */
  extern bStatus_t GAP_DeviceInit(  uint8 taskID,
                           uint8 profileRole,
                           uint8 maxScanResponses,
                           uint8 *pIRK,
                           uint8 *pSRK,
                           uint32 *pSignCounter );

  /**
   * @brief       Called to setup a GAP Advertisement/Scan Response data token.
   *
   * NOTE:        The data in these items are stored as low byte first (OTA format).
   *              The passed in structure "token" should be allocated by the calling app/profile
   *              and not released until after calling GAP_RemoveAdvToken().
   *
   * @param       pToken - Advertisement/Scan response token to write.
   *
   * @return      SUCCESS - advertisement token added to the GAP list <BR>
   *              INVALIDPARAMETER - Invalid Advertisement Type or pAttrData is NULL <BR>
   *              INVALID_MEM_SIZE - The tokens take up too much space and don't fit into Advertisment data and Scan Response Data<BR>
   *              bleInvalidRange - token ID already exists.<BR>
   *              bleIncorrectMode - not a peripheral device<BR>
   *              bleMemAllocError - memory allocation failure,
   */
  extern bStatus_t GAP_SetAdvToken( gapAdvDataToken_t *pToken );

  /**
   * @brief       Called to read a GAP Advertisement/Scan Response data token.
   *
   * @param       adType - Advertisement type to get
   *
   * @return      pointer to the advertisement data token structure, NULL if not found.
   */
  extern gapAdvDataToken_t *GAP_GetAdvToken( uint8 adType );

  /**
   * @brief       Called to remove a GAP Advertisement/Scan Response data token.
   *
   * @param       adType - Advertisement type to remove
   *
   * @return      pointer to the token structure removed from the GAP ADType list
   *              NULL if the requested adType wasn't found.
   */
  extern gapAdvDataToken_t *GAP_RemoveAdvToken( uint8 adType );

  /**
   * @brief       Called to rebuild and load Advertisement and Scan Response data from existing
   *              GAP Advertisement Tokens.
   *
   * @return      SUCCESS or bleIncorrectMode
   */
  extern bStatus_t GAP_UpdateAdvTokens( void );

 /**
   * @brief       Set a GAP Parameter value.  Use this function to change
   *              the default GAP parameter values.
   *
   * @param       paramID - parameter ID: @ref GAP_PARAMETER_ID_DEFINES
   * @param       paramValue - new param value
   *
   * @return      SUCCESS or INVALIDPARAMETER (invalid paramID)
   */
  extern bStatus_t GAP_SetParamValue( gapParamIDs_t paramID, uint16 paramValue );

  /**
   * @brief       Get a GAP Parameter value.
   *
   * @param       paramID - parameter ID: @ref GAP_PARAMETER_ID_DEFINES
   *
   * @return      GAP Parameter value or 0xFFFF if invalid
   */
  extern uint16 GAP_GetParamValue( gapParamIDs_t paramID );

  /**
   * @brief       Setup the device's address type.  If ADDRTYPE_PRIVATE_RESOLVE
   *              is selected, the address will change periodically.
   *
   * @param       addrType - @ref GAP_ADDR_TYPE_DEFINES
   * @param       pStaticAddr - Only used with ADDRTYPE_STATIC
   *                       or ADDRTYPE_PRIVATE_NONRESOLVE type.<BR>
   *                   NULL to auto generate otherwise the application
   *                   can specify the address value
   *
   * @return      SUCCESS: address type updated,<BR>
   *              bleNotReady: Can't be called until GAP_DeviceInit() is called
   *                   and the init process is completed,<BR>
   *              bleIncorrectMode: can't change with an active connection,<BR>
   *               or INVALIDPARAMETER.<BR>
   *
   *              If return value isn't SUCCESS, the address type remains
   *              the same as before this call.
   */
  extern bStatus_t GAP_ConfigDeviceAddr( uint8 addrType, uint8 *pStaticAddr );

  /**
   * @brief       Register your task ID to receive extra (unwanted)
   *              HCI status and complete events.
   *
   * @param       taskID - Default task ID to send events.
   *
   * @return      none
   */
  extern void GAP_RegisterForHCIMsgs( uint8 taskID );

/*-------------------------------------------------------------------
 * FUNCTIONS - Device Discovery
 */

  /**
   * @brief       Start a device discovery scan.
   *
   * @param       pParams - Device Discovery parameters
   *
   * @return      SUCCESS: scan started,<BR>
   *              bleIncorrectMode: invalid profile role,<BR>
   *              bleAlreadyInRequestedMode: not available<BR>
   */
  extern bStatus_t GAP_DeviceDiscoveryRequest( gapDevDiscReq_t *pParams );

  /**
   * @brief       Cancel an existing device discovery request.
   *
   * @param       taskID - used to return GAP_DEVICE_DISCOVERY_EVENT
   *
   * @return      SUCCESS: cancel started,<BR>
   *              bleInvalidTaskID: Not the task that started discovery,<BR>
   *              bleIncorrectMode: not in discovery mode<BR>
   */
  extern bStatus_t GAP_DeviceDiscoveryCancel( uint8 taskID );

  /**
   * @brief       Setup or change advertising.  Also starts advertising.
   *
   * @param       taskID - used to return GAP_DISCOVERABLE_RESPONSE_EVENT
   * @param       pParams - advertising parameters
   *
   * @return      SUCCESS: advertising started,<BR>
   *              bleIncorrectMode: invalid profile role,<BR>
   *              bleAlreadyInRequestedMode: not available at this time,<BR>
   *              bleNotReady: advertising data isn't set up yet.<BR>
   */
  extern bStatus_t GAP_MakeDiscoverable( uint8 taskID, gapAdvertisingParams_t *pParams );

  /**
   * @brief       Setup or change advertising and scan response data.
   *
   *    NOTE:  if the return status from this function is SUCCESS,
   *           the task isn't complete until the GAP_ADV_DATA_UPDATE_DONE_EVENT
   *           is sent to the calling application task.
   *
   * @param       taskID - task ID of the app requesting the change
   * @param       adType - TRUE - advertisement data, FALSE  - scan response data
   * @param       dataLen - Octet length of advertData
   * @param       pAdvertData - advertising or scan response data
   *
   * @return      SUCCESS: data accepted,<BR>
   *              bleIncorrectMode: invalid profile role,<BR>
   */
  extern bStatus_t GAP_UpdateAdvertisingData( uint8 taskID, uint8 adType,
                                      uint8 dataLen, uint8 *pAdvertData );

  /**
   * @brief       Stops advertising.
   *
   * @param       taskID - of task that called GAP_MakeDiscoverable
   *
   * @return      SUCCESS: stopping discoverable mode,<BR>
   *              bleIncorrectMode: not in discoverable mode,<BR>
   *              bleInvalidTaskID: not correct task<BR>
   */
  extern bStatus_t GAP_EndDiscoverable( uint8 taskID );

  /**
   * @brief       Resolves a private address against an IRK.
   *
   * @param       pIRK - pointer to the IRK
   * @param       pAddr - pointer to the Resovable Private address
   *
   * @return      SUCCESS: match,<BR>
   *              FAILURE: don't match,<BR>
   *              INVALIDPARAMETER: parameters invalid<BR>
   */
  extern bStatus_t GAP_ResolvePrivateAddr( uint8 *pIRK, uint8 *pAddr );

/*-------------------------------------------------------------------
 * FUNCTIONS - Link Establishment
 */

  /**
   * @brief       Establish a link to a slave device.
   *
   * @param       pParams - link establishment parameters
   *
   * @return      SUCCESS: started establish link process,<BR>
   *              bleIncorrectMode: invalid profile role,<BR>
   *              bleNotReady: a scan is in progress,<BR>
   *              bleAlreadyInRequestedMode: can’t process now,<BR>
   *              bleNoResources: Too many links<BR>
   */
  extern bStatus_t GAP_EstablishLinkReq( gapEstLinkReq_t *pParams );

  /**
   * @brief       Terminate a link connection.
   *
   * @param       taskID - requesting app's task id.
   * @param       connectionHandle - connection handle of link to terminate
   *                  or @ref GAP_CONN_HANDLE_DEFINES
   * @param       reason - terminate reason.
   *
   * @return      SUCCESS: Terminate started,<BR>
   *              bleIncorrectMode: No Link to terminate,<BR>
   *              bleInvalidTaskID: not app that established link<BR>
   */
  extern bStatus_t GAP_TerminateLinkReq( uint8 taskID, uint16 connectionHandle, uint8 reason );

  /**
   * @brief       Update the link parameters to a slave device.
   *
   * @param       pParams - link update parameters
   *
   * @return      SUCCESS: started update link process,<BR
   *              INVALIDPARAMETER: one of the parameters were invalid,<BR>
   *              bleIncorrectMode: invalid profile role,<BR>
   *              bleNotConnected: not in a connection<BR>
   */
  extern bStatus_t GAP_UpdateLinkParamReq( gapUpdateLinkParamReq_t *pParams );

  /**
   * @brief       Returns the number of active connections.
   *
   * @return      Number of active connections.
   */
  extern uint8 GAP_NumActiveConnections( void );

/*-------------------------------------------------------------------
 * FUNCTIONS - Pairing
 */

  /**
   * @brief       Start the Authentication process with the requested device.
   *              This function is used to Initiate/Allow pairing.
   *              Called by both master and slave device (Central and Peripheral).
   *
   * NOTE:        This function is called after the link is established.
   *
   * @param       pParams - Authentication parameters
   * @param       pPairReq - Enter these parameters if the Pairing Request was already received.
   *              NULL, if waiting for Pairing Request or if initiating.
   *
   * @return      SUCCESS,<BR>
   *              bleIncorrectMode: Not correct profile role,<BR>
   *              INVALIDPARAMETER, <BR>
   *              bleNotConnected,<BR>
   *              bleAlreadyInRequestedMode,<BR>
   *              FAILURE - not workable.<BR>
   */
  extern bStatus_t GAP_Authenticate( gapAuthParams_t *pParams, gapPairingReq_t *pPairReq );

  /**
   * @brief       Send a Pairing Failed message and end any existing pairing.
   *
   * @param       connectionHandle - connection handle.
   * @param       reason - Pairing Failed reason code.
   *
   * @return      SUCCESS - function was successful,<BR>
   *              bleMemAllocError - memory allocation error,<BR>
   *              INVALIDPARAMETER - one of the parameters were invalid,<BR>
   *              bleNotConnected - link not found,<BR>
   *              bleInvalidRange - one of the parameters were not within range.
   */
  extern bStatus_t GAP_TerminateAuth( uint16 connectionHandle, uint8 reason );

  /**
   * @brief       Update the passkey in string format.  This function is called by the
   *              application/profile in response to receiving the
   *              GAP_PASSKEY_NEEDED_EVENT message.
   *
   * NOTE:        This function is the same as GAP_PasscodeUpdate(), except that
   *              the passkey is passed in as a string format.
   *
   * @param       pPasskey - new passkey - pointer to numeric string (ie. "019655" ).
   *              This string's range is "000000" to "999999".
   * @param       connectionHandle - connection handle.
   *
   * @return      SUCCESS: will start pairing with this entry,<BR>
   *              bleIncorrectMode: Link not found,<BR>
   *              INVALIDPARAMETER: passkey == NULL or passkey isn't formatted properly.<BR>
   */
  extern bStatus_t GAP_PasskeyUpdate( uint8 *pPasskey, uint16 connectionHandle );

  /**
   * @brief       Update the passkey in a numeric value (not string).
   *              This function is called by the application/profile in response
   *              to receiving the GAP_PASSKEY_NEEDED_EVENT message.
   *
   * NOTE:        This function is the same as GAP_PasskeyUpdate(), except that
   *              the passkey is passed in as a non-string format.
   *
   * @param       passcode - not string - range: 0 - 999,999.
   * @param       connectionHandle - connection handle.
   *
   * @return      SUCCESS: will start pairing with this entry,<BR>
   *              bleIncorrectMode: Link not found,<BR>
   *              INVALIDPARAMETER: passkey == NULL or passkey isn't formatted properly.<BR>
   */
  extern bStatus_t GAP_PasscodeUpdate( uint32 passcode, uint16 connectionHandle );

  /**
   * @brief       Generate a Slave Requested Security message to the master.
   *
   * @param       connectionHandle - connection handle.
   * @param       authReq - Authentication Requirements: Bit 2: MITM, Bits 0-1: bonding (0 - no bonding, 1 - bonding)
   *
   * @return      SUCCESS: will send,<BR>
   *              bleNotConnected: Link not found,<BR>
   *              bleIncorrectMode: wrong GAP role, must be a Peripheral Role<BR>
   */
  extern bStatus_t GAP_SendSlaveSecurityRequest( uint16 connectionHandle, uint8 authReq );

  /**
   * @brief       Set up the connection to accept signed data.
   *
   * NOTE:        This function is called after the link is established.
   *
   * @param       connectionHandle - connection handle of the signing information
   * @param       authenticated - TRUE if the signing information is authenticated, FALSE otherwise
   * @param       pParams - signing parameters
   *
   * @return      SUCCESS, <BR>
   *              bleIncorrectMode: Not correct profile role,<BR>
   *              INVALIDPARAMETER, <BR>
   *              bleNotConnected,<BR>
   *              FAILURE: not workable.<BR>
   */
  extern bStatus_t GAP_Signable( uint16 connectionHandle, uint8 authenticated, smSigningInfo_t *pParams );

  /**
   * @brief       Set up the connection's bound paramaters.
   *
   * NOTE:        This function is called after the link is established.
   *
   * @param       connectionHandle - connection handle of the signing information
   * @param       authenticated - this connection was previously authenticated
   * @param       pParams - the connected device's security parameters
   * @param       startEncryption - whether or not to start encryption
   *
   * @return      SUCCESS, <BR>
   *              bleIncorrectMode: Not correct profile role,<BR>
   *              INVALIDPARAMETER, <BR>
   *              bleNotConnected,<BR>
   *              FAILURE: not workable.<BR>
   */
  extern bStatus_t GAP_Bond( uint16 connectionHandle, uint8 authenticated,
                             smSecurityInfo_t *pParams, uint8 startEncryption );

/**
 * @} End GAP_API
 */

/*-------------------------------------------------------------------
 * Internal API - These functions are only called from gap.c module.
 */

  /**
   * @internal
   *
   * @brief       Setup the device configuration parameters.
   *
   * @param       taskID - Default task ID to send events.
   * @param       profileRole - GAP Profile Roles
   *
   * @return      SUCCESS or bleIncorrectMode
   */
  extern bStatus_t GAP_ParamsInit( uint8 taskID, uint8 profileRole );

  /**
   * @internal
   *
   * @brief       Setup the device security configuration parameters.
   *
   * @param       pIRK - pointer to Identity Root Key, NULLKEY (all zeroes) if the app
   *                wants the GAP to generate the key.
   * @param       pSRK - pointer to Sign Resolving Key, NULLKEY if the app
   *                wants the GAP to generate the key.
   * @param       pSignCounter - 32 bit value used in the SM Signing
   *                algorithm that shall be initialized to zero and incremented
   *                with every new signing. This variable must also be maintained
   *                by the application.
   *
   * @return      none
   */
  extern void GAP_SecParamsInit( uint8 *pIRK, uint8 *pSRK, uint32 *pSignCounter );

  /**
   * @internal
   *
   * @brief       Initialize the GAP Peripheral Dev Manager.
   *
   * @param       none
   *
   * @return      SUCCESS or bleMemAllocError
   */
  extern bStatus_t GAP_PeriDevMgrInit( void );

  /**
   * @internal
   *
   * @brief       Initialize the GAP Central Dev Manager.
   *
   * @param       maxScanResponses - maximum number to scan responses
   *                we can receive during a device discovery.
   *
   * @return      SUCCESS or bleMemAllocError
   */
  extern bStatus_t GAP_CentDevMgrInit( uint8 maxScanResponses );

  /**
   * @internal
   *
   * @brief       Register the GAP Central Connection processing functions.
   *
   * @param       none
   *
   * @return      none
   */
  extern void GAP_CentConnRegister( void );


/*-------------------------------------------------------------------
 * TASK API - These functions must only be called OSAL.
 */

  /**
   * @internal
   *
   * @brief       GAP Task initialization function.
   *
   * @param       taskID - GAP task ID.
   *
   * @return      void
   */
  extern void GAP_Init( uint8 task_id );

  /**
   * @internal
   *
   * @brief       GAP Task event processing function.
   *
   * @param       taskID - GAP task ID
   * @param       events - GAP events.
   *
   * @return      events not processed
   */
  extern uint16 GAP_ProcessEvent( uint8 task_id, uint16 events );


/*-------------------------------------------------------------------
-------------------------------------------------------------------*/

#ifdef __cplusplus
}
#endif

#endif /* GAP_H */
