Sam Musso / BLE_API

I don't know why this is happening.

Fork of BLE_API by Bluetooth Low Energy

public/Gap.h@349:b8b2b3973c47, 2015-05-08 (annotated)

Committer:
rgrover1
Date:
Fri May 08 15:35:46 2015 +0100
Revision:
349:b8b2b3973c47
Parent:
346:4a42f777161f
Child:
352:79d7cb60ae27
Synchronized with git rev 0e8731df

Author: Rohit Grover

Add APIs to setup callbacks for events related to security/bonding.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 260:ea7f9f14cc15 1 /* mbed Microcontroller Library
rgrover1 260:ea7f9f14cc15 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 260:ea7f9f14cc15 3 *
rgrover1 260:ea7f9f14cc15 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 260:ea7f9f14cc15 5 * you may not use this file except in compliance with the License.
rgrover1 260:ea7f9f14cc15 6 * You may obtain a copy of the License at
rgrover1 260:ea7f9f14cc15 7 *
rgrover1 260:ea7f9f14cc15 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 260:ea7f9f14cc15 9 *
rgrover1 260:ea7f9f14cc15 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 260:ea7f9f14cc15 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 260:ea7f9f14cc15 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 260:ea7f9f14cc15 13 * See the License for the specific language governing permissions and
rgrover1 260:ea7f9f14cc15 14 * limitations under the License.
rgrover1 260:ea7f9f14cc15 15 */
rgrover1 260:ea7f9f14cc15 16
rgrover1 260:ea7f9f14cc15 17 #ifndef __GAP_H__
rgrover1 260:ea7f9f14cc15 18 #define __GAP_H__
rgrover1 260:ea7f9f14cc15 19
rgrover1 260:ea7f9f14cc15 20 #include "GapAdvertisingData.h"
rgrover1 260:ea7f9f14cc15 21 #include "GapAdvertisingParams.h"
rgrover1 260:ea7f9f14cc15 22 #include "GapEvents.h"
rgrover1 260:ea7f9f14cc15 23 #include "CallChain.h"
rgrover1 260:ea7f9f14cc15 24
rgrover1 260:ea7f9f14cc15 25 using namespace mbed;
rgrover1 260:ea7f9f14cc15 26
rgrover1 260:ea7f9f14cc15 27 class Gap {
rgrover1 260:ea7f9f14cc15 28 public:
rgrover1 260:ea7f9f14cc15 29 typedef enum addr_type_e {
rgrover1 260:ea7f9f14cc15 30 ADDR_TYPE_PUBLIC = 0,
rgrover1 260:ea7f9f14cc15 31 ADDR_TYPE_RANDOM_STATIC,
rgrover1 260:ea7f9f14cc15 32 ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE,
rgrover1 260:ea7f9f14cc15 33 ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE
rgrover1 260:ea7f9f14cc15 34 } addr_type_t;
rgrover1 260:ea7f9f14cc15 35
rgrover1 260:ea7f9f14cc15 36 static const unsigned ADDR_LEN = 6;
rgrover1 346:4a42f777161f 37 typedef uint8_t address_t[ADDR_LEN]; /* 48-bit address, LSB format. */
rgrover1 260:ea7f9f14cc15 38
rgrover1 260:ea7f9f14cc15 39 /**
rgrover1 260:ea7f9f14cc15 40 * Enumeration for disconnection reasons. The values for these reasons are
rgrover1 260:ea7f9f14cc15 41 * derived from Nordic's implementation; but the reasons are meant to be
rgrover1 260:ea7f9f14cc15 42 * independent of the transport. If you are returned a reason which is not
rgrover1 260:ea7f9f14cc15 43 * covered by this enumeration, then please refer to the underlying
rgrover1 260:ea7f9f14cc15 44 * transport library.
rgrover1 260:ea7f9f14cc15 45 */
rgrover1 260:ea7f9f14cc15 46 enum DisconnectionReason_t {
rgrover1 260:ea7f9f14cc15 47 REMOTE_USER_TERMINATED_CONNECTION = 0x13,
rgrover1 260:ea7f9f14cc15 48 LOCAL_HOST_TERMINATED_CONNECTION = 0x16,
rgrover1 260:ea7f9f14cc15 49 CONN_INTERVAL_UNACCEPTABLE = 0x3B,
rgrover1 260:ea7f9f14cc15 50 };
rgrover1 260:ea7f9f14cc15 51
rgrover1 260:ea7f9f14cc15 52 /* Describes the current state of the device (more than one bit can be set) */
rgrover1 260:ea7f9f14cc15 53 typedef struct GapState_s {
rgrover1 260:ea7f9f14cc15 54 unsigned advertising : 1; /**< peripheral is currently advertising */
rgrover1 260:ea7f9f14cc15 55 unsigned connected : 1; /**< peripheral is connected to a central */
rgrover1 260:ea7f9f14cc15 56 } GapState_t;
rgrover1 260:ea7f9f14cc15 57
rgrover1 260:ea7f9f14cc15 58 typedef uint16_t Handle_t;
rgrover1 260:ea7f9f14cc15 59
rgrover1 260:ea7f9f14cc15 60 typedef struct {
rgrover1 260:ea7f9f14cc15 61 uint16_t minConnectionInterval; /**< Minimum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
rgrover1 260:ea7f9f14cc15 62 uint16_t maxConnectionInterval; /**< Maximum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
rgrover1 260:ea7f9f14cc15 63 uint16_t slaveLatency; /**< Slave Latency in number of connection events, see @ref BLE_GAP_CP_LIMITS.*/
rgrover1 260:ea7f9f14cc15 64 uint16_t connectionSupervisionTimeout; /**< Connection Supervision Timeout in 10 ms units, see @ref BLE_GAP_CP_LIMITS.*/
rgrover1 260:ea7f9f14cc15 65 } ConnectionParams_t;
rgrover1 260:ea7f9f14cc15 66
rgrover1 260:ea7f9f14cc15 67 static const uint16_t UNIT_1_25_MS = 1250; /**< Number of microseconds in 1.25 milliseconds. */
rgrover1 260:ea7f9f14cc15 68 static const uint16_t UNIT_0_625_MS = 650; /**< Number of microseconds in 0.625 milliseconds. */
rgrover1 260:ea7f9f14cc15 69 static uint16_t MSEC_TO_GAP_DURATION_UNITS(uint32_t durationInMillis) {
rgrover1 260:ea7f9f14cc15 70 return (durationInMillis * 1000) / UNIT_1_25_MS;
rgrover1 260:ea7f9f14cc15 71 }
rgrover1 260:ea7f9f14cc15 72 static uint16_t MSEC_TO_ADVERTISEMENT_DURATION_UNITS(uint32_t durationInMillis) {
rgrover1 260:ea7f9f14cc15 73 return (durationInMillis * 1000) / UNIT_0_625_MS;
rgrover1 260:ea7f9f14cc15 74 }
rgrover1 325:501ad8b8bbe5 75 static uint16_t GAP_DURATION_UNITS_TO_MS(uint16_t gapUnits) {
rgrover1 325:501ad8b8bbe5 76 return (gapUnits * UNIT_0_625_MS) / 1000;
rgrover1 325:501ad8b8bbe5 77 }
rgrover1 260:ea7f9f14cc15 78
rgrover1 260:ea7f9f14cc15 79 typedef void (*EventCallback_t)(void);
rgrover1 342:152bd9c825d6 80 typedef void (*ConnectionEventCallback_t)(Handle_t,
rgrover1 342:152bd9c825d6 81 addr_type_t peerAddrType, const address_t peerAddr,
rgrover1 342:152bd9c825d6 82 addr_type_t ownAddrType, const address_t ownAddr,
rgrover1 342:152bd9c825d6 83 const ConnectionParams_t *);
rgrover1 349:b8b2b3973c47 84 typedef void (*HandleSpecificEvent_t)(Handle_t handle);
rgrover1 260:ea7f9f14cc15 85 typedef void (*DisconnectionEventCallback_t)(Handle_t, DisconnectionReason_t);
rgrover1 341:8a104d9d80c1 86 typedef void (*RadioNotificationEventCallback_t) (bool radio_active); /* gets passed true for ACTIVE; false for INACTIVE. */
rgrover1 260:ea7f9f14cc15 87
rgrover1 260:ea7f9f14cc15 88 friend class BLEDevice;
rgrover1 260:ea7f9f14cc15 89 private:
rgrover1 260:ea7f9f14cc15 90 /* These functions must be defined in the sub-class */
rgrover1 260:ea7f9f14cc15 91 virtual ble_error_t setAddress(addr_type_t type, const address_t address) = 0;
rgrover1 260:ea7f9f14cc15 92 virtual ble_error_t getAddress(addr_type_t *typeP, address_t address) = 0;
rgrover1 260:ea7f9f14cc15 93 virtual ble_error_t setAdvertisingData(const GapAdvertisingData &, const GapAdvertisingData &) = 0;
rgrover1 260:ea7f9f14cc15 94 virtual ble_error_t startAdvertising(const GapAdvertisingParams &) = 0;
rgrover1 260:ea7f9f14cc15 95 virtual ble_error_t stopAdvertising(void) = 0;
rgrover1 325:501ad8b8bbe5 96 virtual uint16_t getMinAdvertisingInterval(void) const = 0;
rgrover1 325:501ad8b8bbe5 97 virtual uint16_t getMinNonConnectableAdvertisingInterval(void) const = 0;
rgrover1 325:501ad8b8bbe5 98 virtual uint16_t getMaxAdvertisingInterval(void) const = 0;
rgrover1 260:ea7f9f14cc15 99 virtual ble_error_t disconnect(DisconnectionReason_t reason) = 0;
rgrover1 260:ea7f9f14cc15 100 virtual ble_error_t getPreferredConnectionParams(ConnectionParams_t *params) = 0;
rgrover1 260:ea7f9f14cc15 101 virtual ble_error_t setPreferredConnectionParams(const ConnectionParams_t *params) = 0;
rgrover1 260:ea7f9f14cc15 102 virtual ble_error_t updateConnectionParams(Handle_t handle, const ConnectionParams_t *params) = 0;
rgrover1 260:ea7f9f14cc15 103
rgrover1 260:ea7f9f14cc15 104 virtual ble_error_t setDeviceName(const uint8_t *deviceName) = 0;
rgrover1 260:ea7f9f14cc15 105 virtual ble_error_t getDeviceName(uint8_t *deviceName, unsigned *lengthP) = 0;
rgrover1 260:ea7f9f14cc15 106 virtual ble_error_t setAppearance(uint16_t appearance) = 0;
rgrover1 260:ea7f9f14cc15 107 virtual ble_error_t getAppearance(uint16_t *appearanceP) = 0;
rgrover1 260:ea7f9f14cc15 108
rgrover1 337:e7c2eb38f5cc 109 protected:
rgrover1 260:ea7f9f14cc15 110 /* Event callback handlers */
rgrover1 260:ea7f9f14cc15 111 void setOnTimeout(EventCallback_t callback) {onTimeout = callback;}
rgrover1 260:ea7f9f14cc15 112 void setOnConnection(ConnectionEventCallback_t callback) {onConnection = callback;}
rgrover1 260:ea7f9f14cc15 113
rgrover1 260:ea7f9f14cc15 114 /**
rgrover1 260:ea7f9f14cc15 115 * Set the application callback for disconnection events.
rgrover1 260:ea7f9f14cc15 116 * @param callback
rgrover1 260:ea7f9f14cc15 117 * Pointer to the unique callback.
rgrover1 260:ea7f9f14cc15 118 */
rgrover1 260:ea7f9f14cc15 119 void setOnDisconnection(DisconnectionEventCallback_t callback) {onDisconnection = callback;}
rgrover1 260:ea7f9f14cc15 120
rgrover1 260:ea7f9f14cc15 121 /**
rgrover1 341:8a104d9d80c1 122 * Set the application callback for radio-notification events.
rgrover1 341:8a104d9d80c1 123 * @param callback
rgrover1 341:8a104d9d80c1 124 * Handler to be executed in resonse to a radio notification event.
rgrover1 341:8a104d9d80c1 125 */
rgrover1 341:8a104d9d80c1 126 virtual void setOnRadioNotification(RadioNotificationEventCallback_t callback) {onRadioNotification = callback;}
rgrover1 341:8a104d9d80c1 127
rgrover1 341:8a104d9d80c1 128 /**
rgrover1 349:b8b2b3973c47 129 * To indicate that security procedure for link has started.
rgrover1 349:b8b2b3973c47 130 */
rgrover1 349:b8b2b3973c47 131 virtual void setOnSecuritySetupStarted(HandleSpecificEvent_t callback) {onSecuritySetupStarted = callback;}
rgrover1 349:b8b2b3973c47 132
rgrover1 349:b8b2b3973c47 133 /**
rgrover1 349:b8b2b3973c47 134 * To indicate that security procedure for link has completed.
rgrover1 349:b8b2b3973c47 135 */
rgrover1 349:b8b2b3973c47 136 virtual void setOnSecuritySetupCompleted(HandleSpecificEvent_t callback) {onSecuritySetupCompleted = callback;}
rgrover1 349:b8b2b3973c47 137
rgrover1 349:b8b2b3973c47 138 /**
rgrover1 349:b8b2b3973c47 139 * To indicate that link with the peer is secured. For bonded devices,
rgrover1 349:b8b2b3973c47 140 * subsequent reconnections with bonded peer will result only in this callback
rgrover1 349:b8b2b3973c47 141 * when the link is secured and setup procedures will not occur unless the
rgrover1 349:b8b2b3973c47 142 * bonding information is either lost or deleted on either or both sides.
rgrover1 349:b8b2b3973c47 143 */
rgrover1 349:b8b2b3973c47 144 virtual void setOnLinkSecured(HandleSpecificEvent_t callback) {onLinkSecured = callback;}
rgrover1 349:b8b2b3973c47 145
rgrover1 349:b8b2b3973c47 146 /**
rgrover1 349:b8b2b3973c47 147 * To indicate that device context is stored persistently.
rgrover1 349:b8b2b3973c47 148 */
rgrover1 349:b8b2b3973c47 149 virtual void setOnSecurityContextStored(HandleSpecificEvent_t callback) {onSecurityContextStored = callback;}
rgrover1 349:b8b2b3973c47 150
rgrover1 349:b8b2b3973c47 151 /**
rgrover1 260:ea7f9f14cc15 152 * Append to a chain of callbacks to be invoked upon disconnection; these
rgrover1 260:ea7f9f14cc15 153 * callbacks receive no context and are therefore different from the
rgrover1 260:ea7f9f14cc15 154 * onDisconnection callback.
rgrover1 260:ea7f9f14cc15 155 * @param callback
rgrover1 260:ea7f9f14cc15 156 * function pointer to be invoked upon disconnection; receives no context.
rgrover1 260:ea7f9f14cc15 157 *
rgrover1 260:ea7f9f14cc15 158 * @note the disconnection CallChain should have been merged with
rgrover1 260:ea7f9f14cc15 159 * onDisconnctionCallback; but this was not possible because
rgrover1 260:ea7f9f14cc15 160 * FunctionPointer (which is a building block for CallChain) doesn't
rgrover1 260:ea7f9f14cc15 161 * accept variadic templates.
rgrover1 260:ea7f9f14cc15 162 */
rgrover1 260:ea7f9f14cc15 163 template<typename T>
rgrover1 260:ea7f9f14cc15 164 void addToDisconnectionCallChain(T *tptr, void (T::*mptr)(void)) {disconnectionCallChain.add(tptr, mptr);}
rgrover1 260:ea7f9f14cc15 165
rgrover1 337:e7c2eb38f5cc 166 private:
rgrover1 260:ea7f9f14cc15 167 GapState_t getState(void) const {
rgrover1 260:ea7f9f14cc15 168 return state;
rgrover1 260:ea7f9f14cc15 169 }
rgrover1 260:ea7f9f14cc15 170
rgrover1 260:ea7f9f14cc15 171 protected:
rgrover1 349:b8b2b3973c47 172 Gap() :
rgrover1 349:b8b2b3973c47 173 state(),
rgrover1 349:b8b2b3973c47 174 onTimeout(NULL),
rgrover1 349:b8b2b3973c47 175 onConnection(NULL),
rgrover1 349:b8b2b3973c47 176 onDisconnection(NULL),
rgrover1 349:b8b2b3973c47 177 onRadioNotification(),
rgrover1 349:b8b2b3973c47 178 onSecuritySetupStarted(),
rgrover1 349:b8b2b3973c47 179 onSecuritySetupCompleted(),
rgrover1 349:b8b2b3973c47 180 onLinkSecured(),
rgrover1 349:b8b2b3973c47 181 onSecurityContextStored(),
rgrover1 349:b8b2b3973c47 182 disconnectionCallChain() {
rgrover1 260:ea7f9f14cc15 183 /* empty */
rgrover1 260:ea7f9f14cc15 184 }
rgrover1 260:ea7f9f14cc15 185
rgrover1 260:ea7f9f14cc15 186 public:
rgrover1 342:152bd9c825d6 187 void processConnectionEvent(Handle_t handle, addr_type_t peerAddrType, const address_t peerAddr, addr_type_t ownAddrType, const address_t ownAddr, const ConnectionParams_t *params) {
rgrover1 260:ea7f9f14cc15 188 state.connected = 1;
rgrover1 260:ea7f9f14cc15 189 if (onConnection) {
rgrover1 342:152bd9c825d6 190 onConnection(handle, peerAddrType, peerAddr, ownAddrType, ownAddr, params);
rgrover1 260:ea7f9f14cc15 191 }
rgrover1 260:ea7f9f14cc15 192 }
rgrover1 260:ea7f9f14cc15 193
rgrover1 260:ea7f9f14cc15 194 void processDisconnectionEvent(Handle_t handle, DisconnectionReason_t reason) {
rgrover1 260:ea7f9f14cc15 195 state.connected = 0;
rgrover1 260:ea7f9f14cc15 196 if (onDisconnection) {
rgrover1 260:ea7f9f14cc15 197 onDisconnection(handle, reason);
rgrover1 260:ea7f9f14cc15 198 }
rgrover1 260:ea7f9f14cc15 199 disconnectionCallChain.call();
rgrover1 260:ea7f9f14cc15 200 }
rgrover1 260:ea7f9f14cc15 201
rgrover1 349:b8b2b3973c47 202 void processSecuritySetupStartedEvent(Handle_t handle) {
rgrover1 349:b8b2b3973c47 203 if (onSecuritySetupStarted) {
rgrover1 349:b8b2b3973c47 204 onSecuritySetupStarted(handle);
rgrover1 349:b8b2b3973c47 205 }
rgrover1 349:b8b2b3973c47 206 }
rgrover1 349:b8b2b3973c47 207
rgrover1 349:b8b2b3973c47 208 void processSecuritySetupCompletedEvent(Handle_t handle) {
rgrover1 349:b8b2b3973c47 209 if (onSecuritySetupCompleted) {
rgrover1 349:b8b2b3973c47 210 onSecuritySetupCompleted(handle);
rgrover1 349:b8b2b3973c47 211 }
rgrover1 349:b8b2b3973c47 212 }
rgrover1 349:b8b2b3973c47 213
rgrover1 349:b8b2b3973c47 214 void processLinkSecuredEvent(Handle_t handle) {
rgrover1 349:b8b2b3973c47 215 if (onLinkSecured) {
rgrover1 349:b8b2b3973c47 216 onLinkSecured(handle);
rgrover1 349:b8b2b3973c47 217 }
rgrover1 349:b8b2b3973c47 218 }
rgrover1 349:b8b2b3973c47 219
rgrover1 349:b8b2b3973c47 220 void processSecurityContextStoredEvent(Handle_t handle) {
rgrover1 349:b8b2b3973c47 221 if (onSecurityContextStored) {
rgrover1 349:b8b2b3973c47 222 onSecurityContextStored(handle);
rgrover1 349:b8b2b3973c47 223 }
rgrover1 349:b8b2b3973c47 224 }
rgrover1 349:b8b2b3973c47 225
rgrover1 260:ea7f9f14cc15 226 void processEvent(GapEvents::gapEvent_e type) {
rgrover1 260:ea7f9f14cc15 227 switch (type) {
rgrover1 260:ea7f9f14cc15 228 case GapEvents::GAP_EVENT_TIMEOUT:
rgrover1 260:ea7f9f14cc15 229 state.advertising = 0;
rgrover1 260:ea7f9f14cc15 230 if (onTimeout) {
rgrover1 260:ea7f9f14cc15 231 onTimeout();
rgrover1 260:ea7f9f14cc15 232 }
rgrover1 260:ea7f9f14cc15 233 break;
rgrover1 267:ad6f6f40eb24 234 default:
rgrover1 267:ad6f6f40eb24 235 break;
rgrover1 260:ea7f9f14cc15 236 }
rgrover1 260:ea7f9f14cc15 237 }
rgrover1 260:ea7f9f14cc15 238
rgrover1 260:ea7f9f14cc15 239 protected:
rgrover1 260:ea7f9f14cc15 240 GapState_t state;
rgrover1 260:ea7f9f14cc15 241
rgrover1 337:e7c2eb38f5cc 242 protected:
rgrover1 260:ea7f9f14cc15 243 EventCallback_t onTimeout;
rgrover1 260:ea7f9f14cc15 244 ConnectionEventCallback_t onConnection;
rgrover1 260:ea7f9f14cc15 245 DisconnectionEventCallback_t onDisconnection;
rgrover1 341:8a104d9d80c1 246 RadioNotificationEventCallback_t onRadioNotification;
rgrover1 349:b8b2b3973c47 247 HandleSpecificEvent_t onSecuritySetupStarted;
rgrover1 349:b8b2b3973c47 248 HandleSpecificEvent_t onSecuritySetupCompleted;
rgrover1 349:b8b2b3973c47 249 HandleSpecificEvent_t onLinkSecured;
rgrover1 349:b8b2b3973c47 250 HandleSpecificEvent_t onSecurityContextStored;
rgrover1 260:ea7f9f14cc15 251 CallChain disconnectionCallChain;
rgrover1 260:ea7f9f14cc15 252
rgrover1 260:ea7f9f14cc15 253 private:
rgrover1 260:ea7f9f14cc15 254 /* disallow copy and assignment */
rgrover1 260:ea7f9f14cc15 255 Gap(const Gap &);
rgrover1 260:ea7f9f14cc15 256 Gap& operator=(const Gap &);
rgrover1 260:ea7f9f14cc15 257 };
rgrover1 260:ea7f9f14cc15 258
rgrover1 260:ea7f9f14cc15 259 #endif // ifndef __GAP_H__