GattCharacteristic.h

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2013 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #ifndef __GATT_CHARACTERISTIC_H__
00018 #define __GATT_CHARACTERISTIC_H__
00019 
00020 #include "Gap.h"
00021 #include "SecurityManager.h"
00022 #include "GattAttribute.h"
00023 #include "GattCallbackParamTypes.h"
00024 #include "FunctionPointerWithContext.h"
00025 
00026 class GattCharacteristic {
00027 public:
00028     enum {
00029         UUID_BATTERY_LEVEL_STATE_CHAR                     = 0x2A1B,
00030         UUID_BATTERY_POWER_STATE_CHAR                     = 0x2A1A,
00031         UUID_REMOVABLE_CHAR                               = 0x2A3A,
00032         UUID_SERVICE_REQUIRED_CHAR                        = 0x2A3B,
00033         UUID_ALERT_CATEGORY_ID_CHAR                       = 0x2A43,
00034         UUID_ALERT_CATEGORY_ID_BIT_MASK_CHAR              = 0x2A42,
00035         UUID_ALERT_LEVEL_CHAR                             = 0x2A06,
00036         UUID_ALERT_NOTIFICATION_CONTROL_POINT_CHAR        = 0x2A44,
00037         UUID_ALERT_STATUS_CHAR                            = 0x2A3F,
00038         UUID_BATTERY_LEVEL_CHAR                           = 0x2A19,
00039         UUID_BLOOD_PRESSURE_FEATURE_CHAR                  = 0x2A49,
00040         UUID_BLOOD_PRESSURE_MEASUREMENT_CHAR              = 0x2A35,
00041         UUID_BODY_SENSOR_LOCATION_CHAR                    = 0x2A38,
00042         UUID_BOOT_KEYBOARD_INPUT_REPORT_CHAR              = 0x2A22,
00043         UUID_BOOT_KEYBOARD_OUTPUT_REPORT_CHAR             = 0x2A32,
00044         UUID_BOOT_MOUSE_INPUT_REPORT_CHAR                 = 0x2A33,
00045         UUID_CURRENT_TIME_CHAR                            = 0x2A2B,
00046         UUID_DATE_TIME_CHAR                               = 0x2A08,
00047         UUID_DAY_DATE_TIME_CHAR                           = 0x2A0A,
00048         UUID_DAY_OF_WEEK_CHAR                             = 0x2A09,
00049         UUID_DST_OFFSET_CHAR                              = 0x2A0D,
00050         UUID_EXACT_TIME_256_CHAR                          = 0x2A0C,
00051         UUID_FIRMWARE_REVISION_STRING_CHAR                = 0x2A26,
00052         UUID_GLUCOSE_FEATURE_CHAR                         = 0x2A51,
00053         UUID_GLUCOSE_MEASUREMENT_CHAR                     = 0x2A18,
00054         UUID_GLUCOSE_MEASUREMENT_CONTEXT_CHAR             = 0x2A34,
00055         UUID_HARDWARE_REVISION_STRING_CHAR                = 0x2A27,
00056         UUID_HEART_RATE_CONTROL_POINT_CHAR                = 0x2A39,
00057         UUID_HEART_RATE_MEASUREMENT_CHAR                  = 0x2A37,
00058         UUID_HID_CONTROL_POINT_CHAR                       = 0x2A4C,
00059         UUID_HID_INFORMATION_CHAR                         = 0x2A4A,
00060         UUID_HUMIDITY_CHAR                                = 0x2A6F,
00061         UUID_IEEE_REGULATORY_CERTIFICATION_DATA_LIST_CHAR = 0x2A2A,
00062         UUID_INTERMEDIATE_CUFF_PRESSURE_CHAR              = 0x2A36,
00063         UUID_INTERMEDIATE_TEMPERATURE_CHAR                = 0x2A1E,
00064         UUID_LOCAL_TIME_INFORMATION_CHAR                  = 0x2A0F,
00065         UUID_MANUFACTURER_NAME_STRING_CHAR                = 0x2A29,
00066         UUID_MEASUREMENT_INTERVAL_CHAR                    = 0x2A21,
00067         UUID_MODEL_NUMBER_STRING_CHAR                     = 0x2A24,
00068         UUID_UNREAD_ALERT_CHAR                            = 0x2A45,
00069         UUID_NEW_ALERT_CHAR                               = 0x2A46,
00070         UUID_PNP_ID_CHAR                                  = 0x2A50,
00071         UUID_PRESSURE_CHAR                                = 0x2A6D,
00072         UUID_PROTOCOL_MODE_CHAR                           = 0x2A4E,
00073         UUID_RECORD_ACCESS_CONTROL_POINT_CHAR             = 0x2A52,
00074         UUID_REFERENCE_TIME_INFORMATION_CHAR              = 0x2A14,
00075         UUID_REPORT_CHAR                                  = 0x2A4D,
00076         UUID_REPORT_MAP_CHAR                              = 0x2A4B,
00077         UUID_RINGER_CONTROL_POINT_CHAR                    = 0x2A40,
00078         UUID_RINGER_SETTING_CHAR                          = 0x2A41,
00079         UUID_SCAN_INTERVAL_WINDOW_CHAR                    = 0x2A4F,
00080         UUID_SCAN_REFRESH_CHAR                            = 0x2A31,
00081         UUID_SERIAL_NUMBER_STRING_CHAR                    = 0x2A25,
00082         UUID_SOFTWARE_REVISION_STRING_CHAR                = 0x2A28,
00083         UUID_SUPPORTED_NEW_ALERT_CATEGORY_CHAR            = 0x2A47,
00084         UUID_SUPPORTED_UNREAD_ALERT_CATEGORY_CHAR         = 0x2A48,
00085         UUID_SYSTEM_ID_CHAR                               = 0x2A23,
00086         UUID_TEMPERATURE_CHAR                             = 0x2A6E,
00087         UUID_TEMPERATURE_MEASUREMENT_CHAR                 = 0x2A1C,
00088         UUID_TEMPERATURE_TYPE_CHAR                        = 0x2A1D,
00089         UUID_TIME_ACCURACY_CHAR                           = 0x2A12,
00090         UUID_TIME_SOURCE_CHAR                             = 0x2A13,
00091         UUID_TIME_UPDATE_CONTROL_POINT_CHAR               = 0x2A16,
00092         UUID_TIME_UPDATE_STATE_CHAR                       = 0x2A17,
00093         UUID_TIME_WITH_DST_CHAR                           = 0x2A11,
00094         UUID_TIME_ZONE_CHAR                               = 0x2A0E,
00095         UUID_TX_POWER_LEVEL_CHAR                          = 0x2A07,
00096         UUID_CSC_FEATURE_CHAR                             = 0x2A5C,
00097         UUID_CSC_MEASUREMENT_CHAR                         = 0x2A5B,
00098         UUID_RSC_FEATURE_CHAR                             = 0x2A54,
00099         UUID_RSC_MEASUREMENT_CHAR                         = 0x2A53
00100     };
00101 
00102     /**
00103      *  @brief  Standard GATT characteristic presentation format unit types.
00104      *          These unit types are used to describe what the raw numeric
00105      *          data in a characteristic actually represents.
00106      *
00107      *  @note   See https://developer.bluetooth.org/gatt/units/Pages/default.aspx
00108      */
00109     enum {
00110         BLE_GATT_UNIT_NONE                                                   = 0x2700,      /**< No specified unit type. */
00111         BLE_GATT_UNIT_LENGTH_METRE                                           = 0x2701,      /**< Length, metre. */
00112         BLE_GATT_UNIT_MASS_KILOGRAM                                          = 0x2702,      /**< Mass, kilogram. */
00113         BLE_GATT_UNIT_TIME_SECOND                                            = 0x2703,      /**< Time, second. */
00114         BLE_GATT_UNIT_ELECTRIC_CURRENT_AMPERE                                = 0x2704,      /**< Electric current, ampere. */
00115         BLE_GATT_UNIT_THERMODYNAMIC_TEMPERATURE_KELVIN                       = 0x2705,      /**< Thermodynamic temperature, kelvin. */
00116         BLE_GATT_UNIT_AMOUNT_OF_SUBSTANCE_MOLE                               = 0x2706,      /**< Amount of substance, mole. */
00117         BLE_GATT_UNIT_LUMINOUS_INTENSITY_CANDELA                             = 0x2707,      /**< Luminous intensity, candela. */
00118         BLE_GATT_UNIT_AREA_SQUARE_METRES                                     = 0x2710,      /**< Area, square metres. */
00119         BLE_GATT_UNIT_VOLUME_CUBIC_METRES                                    = 0x2711,      /**< Volume, cubic metres. */
00120         BLE_GATT_UNIT_VELOCITY_METRES_PER_SECOND                             = 0x2712,      /**< Velocity, metres per second. */
00121         BLE_GATT_UNIT_ACCELERATION_METRES_PER_SECOND_SQUARED                 = 0x2713,      /**< Acceleration, metres per second squared. */
00122         BLE_GATT_UNIT_WAVENUMBER_RECIPROCAL_METRE                            = 0x2714,      /**< Wave number reciprocal, metre. */
00123         BLE_GATT_UNIT_DENSITY_KILOGRAM_PER_CUBIC_METRE                       = 0x2715,      /**< Density, kilogram per cubic metre. */
00124         BLE_GATT_UNIT_SURFACE_DENSITY_KILOGRAM_PER_SQUARE_METRE              = 0x2716,      /**<  */
00125         BLE_GATT_UNIT_SPECIFIC_VOLUME_CUBIC_METRE_PER_KILOGRAM               = 0x2717,      /**<  */
00126         BLE_GATT_UNIT_CURRENT_DENSITY_AMPERE_PER_SQUARE_METRE                = 0x2718,      /**<  */
00127         BLE_GATT_UNIT_MAGNETIC_FIELD_STRENGTH_AMPERE_PER_METRE               = 0x2719,      /**< Magnetic field strength, ampere per metre. */
00128         BLE_GATT_UNIT_AMOUNT_CONCENTRATION_MOLE_PER_CUBIC_METRE              = 0x271A,      /**<  */
00129         BLE_GATT_UNIT_MASS_CONCENTRATION_KILOGRAM_PER_CUBIC_METRE            = 0x271B,      /**<  */
00130         BLE_GATT_UNIT_LUMINANCE_CANDELA_PER_SQUARE_METRE                     = 0x271C,      /**<  */
00131         BLE_GATT_UNIT_REFRACTIVE_INDEX                                       = 0x271D,      /**<  */
00132         BLE_GATT_UNIT_RELATIVE_PERMEABILITY                                  = 0x271E,      /**<  */
00133         BLE_GATT_UNIT_PLANE_ANGLE_RADIAN                                     = 0x2720,      /**<  */
00134         BLE_GATT_UNIT_SOLID_ANGLE_STERADIAN                                  = 0x2721,      /**<  */
00135         BLE_GATT_UNIT_FREQUENCY_HERTZ                                        = 0x2722,      /**< Frequency, hertz. */
00136         BLE_GATT_UNIT_FORCE_NEWTON                                           = 0x2723,      /**< Force, newton. */
00137         BLE_GATT_UNIT_PRESSURE_PASCAL                                        = 0x2724,      /**< Pressure, pascal. */
00138         BLE_GATT_UNIT_ENERGY_JOULE                                           = 0x2725,      /**< Energy, joule. */
00139         BLE_GATT_UNIT_POWER_WATT                                             = 0x2726,      /**< Power, watt. */
00140         BLE_GATT_UNIT_ELECTRIC_CHARGE_COULOMB                                = 0x2727,      /**< Electrical charge, coulomb. */
00141         BLE_GATT_UNIT_ELECTRIC_POTENTIAL_DIFFERENCE_VOLT                     = 0x2728,      /**< Electrical potential difference, voltage. */
00142         BLE_GATT_UNIT_CAPACITANCE_FARAD                                      = 0x2729,      /**<  */
00143         BLE_GATT_UNIT_ELECTRIC_RESISTANCE_OHM                                = 0x272A,      /**<  */
00144         BLE_GATT_UNIT_ELECTRIC_CONDUCTANCE_SIEMENS                           = 0x272B,      /**<  */
00145         BLE_GATT_UNIT_MAGNETIC_FLEX_WEBER                                    = 0x272C,      /**<  */
00146         BLE_GATT_UNIT_MAGNETIC_FLEX_DENSITY_TESLA                            = 0x272D,      /**<  */
00147         BLE_GATT_UNIT_INDUCTANCE_HENRY                                       = 0x272E,      /**<  */
00148         BLE_GATT_UNIT_THERMODYNAMIC_TEMPERATURE_DEGREE_CELSIUS               = 0x272F,      /**<  */
00149         BLE_GATT_UNIT_LUMINOUS_FLUX_LUMEN                                    = 0x2730,      /**<  */
00150         BLE_GATT_UNIT_ILLUMINANCE_LUX                                        = 0x2731,      /**<  */
00151         BLE_GATT_UNIT_ACTIVITY_REFERRED_TO_A_RADIONUCLIDE_BECQUEREL          = 0x2732,      /**<  */
00152         BLE_GATT_UNIT_ABSORBED_DOSE_GRAY                                     = 0x2733,      /**<  */
00153         BLE_GATT_UNIT_DOSE_EQUIVALENT_SIEVERT                                = 0x2734,      /**<  */
00154         BLE_GATT_UNIT_CATALYTIC_ACTIVITY_KATAL                               = 0x2735,      /**<  */
00155         BLE_GATT_UNIT_DYNAMIC_VISCOSITY_PASCAL_SECOND                        = 0x2740,      /**<  */
00156         BLE_GATT_UNIT_MOMENT_OF_FORCE_NEWTON_METRE                           = 0x2741,      /**<  */
00157         BLE_GATT_UNIT_SURFACE_TENSION_NEWTON_PER_METRE                       = 0x2742,      /**<  */
00158         BLE_GATT_UNIT_ANGULAR_VELOCITY_RADIAN_PER_SECOND                     = 0x2743,      /**<  */
00159         BLE_GATT_UNIT_ANGULAR_ACCELERATION_RADIAN_PER_SECOND_SQUARED         = 0x2744,      /**<  */
00160         BLE_GATT_UNIT_HEAT_FLUX_DENSITY_WATT_PER_SQUARE_METRE                = 0x2745,      /**<  */
00161         BLE_GATT_UNIT_HEAT_CAPACITY_JOULE_PER_KELVIN                         = 0x2746,      /**<  */
00162         BLE_GATT_UNIT_SPECIFIC_HEAT_CAPACITY_JOULE_PER_KILOGRAM_KELVIN       = 0x2747,      /**<  */
00163         BLE_GATT_UNIT_SPECIFIC_ENERGY_JOULE_PER_KILOGRAM                     = 0x2748,      /**<  */
00164         BLE_GATT_UNIT_THERMAL_CONDUCTIVITY_WATT_PER_METRE_KELVIN             = 0x2749,      /**<  */
00165         BLE_GATT_UNIT_ENERGY_DENSITY_JOULE_PER_CUBIC_METRE                   = 0x274A,      /**<  */
00166         BLE_GATT_UNIT_ELECTRIC_FIELD_STRENGTH_VOLT_PER_METRE                 = 0x274B,      /**<  */
00167         BLE_GATT_UNIT_ELECTRIC_CHARGE_DENSITY_COULOMB_PER_CUBIC_METRE        = 0x274C,      /**<  */
00168         BLE_GATT_UNIT_SURFACE_CHARGE_DENSITY_COULOMB_PER_SQUARE_METRE        = 0x274D,      /**<  */
00169         BLE_GATT_UNIT_ELECTRIC_FLUX_DENSITY_COULOMB_PER_SQUARE_METRE         = 0x274E,      /**<  */
00170         BLE_GATT_UNIT_PERMITTIVITY_FARAD_PER_METRE                           = 0x274F,      /**<  */
00171         BLE_GATT_UNIT_PERMEABILITY_HENRY_PER_METRE                           = 0x2750,      /**<  */
00172         BLE_GATT_UNIT_MOLAR_ENERGY_JOULE_PER_MOLE                            = 0x2751,      /**<  */
00173         BLE_GATT_UNIT_MOLAR_ENTROPY_JOULE_PER_MOLE_KELVIN                    = 0x2752,      /**<  */
00174         BLE_GATT_UNIT_EXPOSURE_COULOMB_PER_KILOGRAM                          = 0x2753,      /**<  */
00175         BLE_GATT_UNIT_ABSORBED_DOSE_RATE_GRAY_PER_SECOND                     = 0x2754,      /**<  */
00176         BLE_GATT_UNIT_RADIANT_INTENSITY_WATT_PER_STERADIAN                   = 0x2755,      /**<  */
00177         BLE_GATT_UNIT_RADIANCE_WATT_PER_SQUARE_METRE_STERADIAN               = 0x2756,      /**<  */
00178         BLE_GATT_UNIT_CATALYTIC_ACTIVITY_CONCENTRATION_KATAL_PER_CUBIC_METRE = 0x2757,      /**<  */
00179         BLE_GATT_UNIT_TIME_MINUTE                                            = 0x2760,      /**< Time, minute. */
00180         BLE_GATT_UNIT_TIME_HOUR                                              = 0x2761,      /**< Time, hour. */
00181         BLE_GATT_UNIT_TIME_DAY                                               = 0x2762,      /**< Time, day. */
00182         BLE_GATT_UNIT_PLANE_ANGLE_DEGREE                                     = 0x2763,      /**<  */
00183         BLE_GATT_UNIT_PLANE_ANGLE_MINUTE                                     = 0x2764,      /**<  */
00184         BLE_GATT_UNIT_PLANE_ANGLE_SECOND                                     = 0x2765,      /**<  */
00185         BLE_GATT_UNIT_AREA_HECTARE                                           = 0x2766,      /**<  */
00186         BLE_GATT_UNIT_VOLUME_LITRE                                           = 0x2767,      /**<  */
00187         BLE_GATT_UNIT_MASS_TONNE                                             = 0x2768,      /**<  */
00188         BLE_GATT_UNIT_PRESSURE_BAR                                           = 0x2780,      /**< Pressure, bar. */
00189         BLE_GATT_UNIT_PRESSURE_MILLIMETRE_OF_MERCURY                         = 0x2781,      /**< Pressure, millimetre of mercury. */
00190         BLE_GATT_UNIT_LENGTH_ANGSTROM                                        = 0x2782,      /**<  */
00191         BLE_GATT_UNIT_LENGTH_NAUTICAL_MILE                                   = 0x2783,      /**<  */
00192         BLE_GATT_UNIT_AREA_BARN                                              = 0x2784,      /**<  */
00193         BLE_GATT_UNIT_VELOCITY_KNOT                                          = 0x2785,      /**<  */
00194         BLE_GATT_UNIT_LOGARITHMIC_RADIO_QUANTITY_NEPER                       = 0x2786,      /**<  */
00195         BLE_GATT_UNIT_LOGARITHMIC_RADIO_QUANTITY_BEL                         = 0x2787,      /**<  */
00196         BLE_GATT_UNIT_LENGTH_YARD                                            = 0x27A0,      /**< Length, yard. */
00197         BLE_GATT_UNIT_LENGTH_PARSEC                                          = 0x27A1,      /**< Length, parsec. */
00198         BLE_GATT_UNIT_LENGTH_INCH                                            = 0x27A2,      /**< Length, inch. */
00199         BLE_GATT_UNIT_LENGTH_FOOT                                            = 0x27A3,      /**< Length, foot. */
00200         BLE_GATT_UNIT_LENGTH_MILE                                            = 0x27A4,      /**< Length, mile. */
00201         BLE_GATT_UNIT_PRESSURE_POUND_FORCE_PER_SQUARE_INCH                   = 0x27A5,      /**<  */
00202         BLE_GATT_UNIT_VELOCITY_KILOMETRE_PER_HOUR                            = 0x27A6,      /**< Velocity, kilometre per hour. */
00203         BLE_GATT_UNIT_VELOCITY_MILE_PER_HOUR                                 = 0x27A7,      /**< Velocity, mile per hour. */
00204         BLE_GATT_UNIT_ANGULAR_VELOCITY_REVOLUTION_PER_MINUTE                 = 0x27A8,      /**< Angular Velocity, revolution per minute. */
00205         BLE_GATT_UNIT_ENERGY_GRAM_CALORIE                                    = 0x27A9,      /**< Energy, gram calorie. */
00206         BLE_GATT_UNIT_ENERGY_KILOGRAM_CALORIE                                = 0x27AA,      /**< Energy, kilogram calorie. */
00207         BLE_GATT_UNIT_ENERGY_KILOWATT_HOUR                                   = 0x27AB,      /**< Energy, killowatt hour. */
00208         BLE_GATT_UNIT_THERMODYNAMIC_TEMPERATURE_DEGREE_FAHRENHEIT            = 0x27AC,      /**<  */
00209         BLE_GATT_UNIT_PERCENTAGE                                             = 0x27AD,      /**< Percentage. */
00210         BLE_GATT_UNIT_PER_MILLE                                              = 0x27AE,      /**<  */
00211         BLE_GATT_UNIT_PERIOD_BEATS_PER_MINUTE                                = 0x27AF,      /**<  */
00212         BLE_GATT_UNIT_ELECTRIC_CHARGE_AMPERE_HOURS                           = 0x27B0,      /**<  */
00213         BLE_GATT_UNIT_MASS_DENSITY_MILLIGRAM_PER_DECILITRE                   = 0x27B1,      /**<  */
00214         BLE_GATT_UNIT_MASS_DENSITY_MILLIMOLE_PER_LITRE                       = 0x27B2,      /**<  */
00215         BLE_GATT_UNIT_TIME_YEAR                                              = 0x27B3,      /**< Time, year. */
00216         BLE_GATT_UNIT_TIME_MONTH                                             = 0x27B4,      /**< Time, month. */
00217         BLE_GATT_UNIT_CONCENTRATION_COUNT_PER_CUBIC_METRE                    = 0x27B5,      /**<  */
00218         BLE_GATT_UNIT_IRRADIANCE_WATT_PER_SQUARE_METRE                       = 0x27B6       /**<  */
00219     };
00220 
00221     /**
00222      *  @brief  Standard GATT number types.
00223      *
00224      *  @note   See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.3.5.2.
00225      *
00226      *  @note   See http://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
00227      */
00228     enum {
00229         BLE_GATT_FORMAT_RFU     = 0x00, /**< Reserved for future use. */
00230         BLE_GATT_FORMAT_BOOLEAN = 0x01, /**< Boolean. */
00231         BLE_GATT_FORMAT_2BIT    = 0x02, /**< Unsigned 2-bit integer. */
00232         BLE_GATT_FORMAT_NIBBLE  = 0x03, /**< Unsigned 4-bit integer. */
00233         BLE_GATT_FORMAT_UINT8   = 0x04, /**< Unsigned 8-bit integer. */
00234         BLE_GATT_FORMAT_UINT12  = 0x05, /**< Unsigned 12-bit integer. */
00235         BLE_GATT_FORMAT_UINT16  = 0x06, /**< Unsigned 16-bit integer. */
00236         BLE_GATT_FORMAT_UINT24  = 0x07, /**< Unsigned 24-bit integer. */
00237         BLE_GATT_FORMAT_UINT32  = 0x08, /**< Unsigned 32-bit integer. */
00238         BLE_GATT_FORMAT_UINT48  = 0x09, /**< Unsigned 48-bit integer. */
00239         BLE_GATT_FORMAT_UINT64  = 0x0A, /**< Unsigned 64-bit integer. */
00240         BLE_GATT_FORMAT_UINT128 = 0x0B, /**< Unsigned 128-bit integer. */
00241         BLE_GATT_FORMAT_SINT8   = 0x0C, /**< Signed 2-bit integer. */
00242         BLE_GATT_FORMAT_SINT12  = 0x0D, /**< Signed 12-bit integer. */
00243         BLE_GATT_FORMAT_SINT16  = 0x0E, /**< Signed 16-bit integer. */
00244         BLE_GATT_FORMAT_SINT24  = 0x0F, /**< Signed 24-bit integer. */
00245         BLE_GATT_FORMAT_SINT32  = 0x10, /**< Signed 32-bit integer. */
00246         BLE_GATT_FORMAT_SINT48  = 0x11, /**< Signed 48-bit integer. */
00247         BLE_GATT_FORMAT_SINT64  = 0x12, /**< Signed 64-bit integer. */
00248         BLE_GATT_FORMAT_SINT128 = 0x13, /**< Signed 128-bit integer. */
00249         BLE_GATT_FORMAT_FLOAT32 = 0x14, /**< IEEE-754 32-bit floating point. */
00250         BLE_GATT_FORMAT_FLOAT64 = 0x15, /**< IEEE-754 64-bit floating point. */
00251         BLE_GATT_FORMAT_SFLOAT  = 0x16, /**< IEEE-11073 16-bit SFLOAT. */
00252         BLE_GATT_FORMAT_FLOAT   = 0x17, /**< IEEE-11073 32-bit FLOAT. */
00253         BLE_GATT_FORMAT_DUINT16 = 0x18, /**< IEEE-20601 format. */
00254         BLE_GATT_FORMAT_UTF8S   = 0x19, /**< UTF-8 string. */
00255         BLE_GATT_FORMAT_UTF16S  = 0x1A, /**< UTF-16 string. */
00256         BLE_GATT_FORMAT_STRUCT  = 0x1B  /**< Opaque Structure. */
00257     };
00258 
00259     /*!
00260      *  @brief  Standard GATT characteristic properties.
00261      *
00262      *  @note   See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.1.1
00263      *          and Section 3.3.3.1 for Extended Properties.
00264      */
00265     enum Properties_t {
00266         BLE_GATT_CHAR_PROPERTIES_NONE                        = 0x00,
00267         BLE_GATT_CHAR_PROPERTIES_BROADCAST                   = 0x01, /**< Permits broadcasts of the characteristic value using the Server Characteristic Configuration descriptor. */
00268         BLE_GATT_CHAR_PROPERTIES_READ                        = 0x02, /**< Permits reads of the characteristic value. */
00269         BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE      = 0x04, /**< Permits writes of the characteristic value without response. */
00270         BLE_GATT_CHAR_PROPERTIES_WRITE                       = 0x08, /**< Permits writes of the characteristic value with response. */
00271         BLE_GATT_CHAR_PROPERTIES_NOTIFY                      = 0x10, /**< Permits notifications of a characteristic value without acknowledgment. */
00272         BLE_GATT_CHAR_PROPERTIES_INDICATE                    = 0x20, /**< Permits indications of a characteristic value with acknowledgment. */
00273         BLE_GATT_CHAR_PROPERTIES_AUTHENTICATED_SIGNED_WRITES = 0x40, /**< Permits signed writes to the characteristic value. */
00274         BLE_GATT_CHAR_PROPERTIES_EXTENDED_PROPERTIES         = 0x80  /**< Additional characteristic properties are defined in the Characteristic Extended Properties descriptor */
00275     };
00276 
00277     /**
00278      *  @brief  GATT presentation format wrapper.
00279      *
00280      *  @note   See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.3.5.
00281      *
00282      *  @note   See https://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
00283      */
00284     struct PresentationFormat_t {
00285         uint8_t  gatt_format;    /**< Format of the value. */
00286         int8_t   exponent;       /**< Exponent for integer data types. Example: if Exponent = -3 and the char value is 3892, the actual value is 3.892 */
00287         uint16_t gatt_unit;      /**< UUID from Bluetooth Assigned Numbers. */
00288         uint8_t  gatt_namespace; /**< Namespace from Bluetooth Assigned Numbers, normally '1'. */
00289         uint16_t gatt_nsdesc;    /**< Namespace description from Bluetooth Assigned Numbers, normally '0'. */
00290     };
00291 
00292     /**
00293      * @brief  Creates a new GattCharacteristic using the specified 16-bit
00294      *         UUID, value length, and properties.
00295      *
00296      * @param[in]  uuid
00297      *             The UUID to use for this characteristic.
00298      * @param[in]  valuePtr
00299      *             The memory holding the initial value. The value is copied
00300      *             into the stack when the enclosing service is added, and
00301      *             is thereafter maintained internally by the stack.
00302      * @param[in]  len
00303      *             The length in bytes of this characteristic's value.
00304      * @param[in]  maxLen
00305      *             The max length in bytes of this characteristic's value.
00306      * @param[in]  props
00307      *             The 8-bit field containing the characteristic's properties.
00308      * @param[in]  descriptors
00309      *             A pointer to an array of descriptors to be included within
00310      *             this characteristic. The memory for the descriptor array is
00311      *             owned by the caller, and should remain valid at least until
00312      *             the enclosing service is added to the GATT table.
00313      * @param[in]  numDescriptors
00314      *             The number of descriptors in the previous array.
00315      * @param[in]  hasVariableLen
00316      *             Whether the attribute's value length changes over time.
00317      *
00318      * @note   The UUID value must be unique in the service and is normally >1.
00319      *
00320      * @note  If valuePtr == NULL, length == 0, and properties == READ
00321      *        for the value attribute of a characteristic, then that particular
00322      *        characteristic may be considered optional and dropped while
00323      *        instantiating the service with the underlying BLE stack.
00324      */
00325     GattCharacteristic(const UUID    &uuid,
00326                        uint8_t       *valuePtr       = NULL,
00327                        uint16_t       len            = 0,
00328                        uint16_t       maxLen         = 0,
00329                        uint8_t        props          = BLE_GATT_CHAR_PROPERTIES_NONE,
00330                        GattAttribute *descriptors[]  = NULL,
00331                        unsigned       numDescriptors = 0,
00332                        bool           hasVariableLen = true) :
00333         _valueAttribute(uuid, valuePtr, len, maxLen, hasVariableLen),
00334         _properties(props),
00335         _requiredSecurity(SecurityManager::SECURITY_MODE_ENCRYPTION_OPEN_LINK),
00336         _descriptors(descriptors),
00337         _descriptorCount(numDescriptors),
00338         enabledReadAuthorization(false),
00339         enabledWriteAuthorization(false),
00340         readAuthorizationCallback(),
00341         writeAuthorizationCallback() {
00342         /* empty */
00343     }
00344 
00345 public:
00346     /**
00347      * Set up the minimum security (mode and level) requirements for access to
00348      * the characteristic's value attribute.
00349      *
00350      * @param[in] securityMode
00351      *              Can be one of encryption or signing, with or without
00352      *              protection for man in the middle attacks (MITM).
00353      */
00354     void requireSecurity(SecurityManager::SecurityMode_t securityMode) {
00355         _requiredSecurity = securityMode;
00356     }
00357 
00358 public:
00359     /**
00360      * Set up callback that will be triggered before the GATT Client is allowed
00361      * to write this characteristic. The handler will determine the
00362      * authorization reply for the write.
00363      *
00364      * @param[in] callback
00365      *      Event handler being registered.
00366      */
00367     void setWriteAuthorizationCallback(void (*callback)(GattWriteAuthCallbackParams *)) {
00368         writeAuthorizationCallback.attach(callback);
00369         enabledWriteAuthorization = true;
00370     }
00371 
00372     /**
00373      * Same as GattCharacrteristic::setWriteAuthorizationCallback(), but allows
00374      * the possibility to add an object reference and member function as
00375      * handler for connection event callbacks.
00376      *
00377      * @param[in] object
00378      *              Pointer to the object of a class defining the member callback
00379      *              function (@p member).
00380      * @param[in] member
00381      *              The member callback (within the context of an object) to be
00382      *              invoked.
00383      */
00384     template <typename T>
00385     void setWriteAuthorizationCallback(T *object, void (T::*member)(GattWriteAuthCallbackParams *)) {
00386         writeAuthorizationCallback.attach(object, member);
00387         enabledWriteAuthorization = true;
00388     }
00389 
00390     /**
00391      * Set up callback that will be triggered before the GATT Client is allowed
00392      * to read this characteristic. The handler will determine the
00393      * authorizaion reply for the read.
00394      *
00395      * @param[in] callback
00396      *      Event handler being registered.
00397      */
00398     void setReadAuthorizationCallback(void (*callback)(GattReadAuthCallbackParams *)) {
00399         readAuthorizationCallback.attach(callback);
00400         enabledReadAuthorization = true;
00401     }
00402 
00403     /**
00404      * Same as GattCharacrteristic::setReadAuthorizationCallback(), but allows
00405      * the possibility to add an object reference and member function as
00406      * handler for connection event callbacks.
00407      *
00408      * @param[in] object
00409      *              Pointer to the object of a class defining the member callback
00410      *              function (@p member).
00411      * @param[in] member
00412      *              The member callback (within the context of an object) to be
00413      *              invoked.
00414      */
00415     template <typename T>
00416     void setReadAuthorizationCallback(T *object, void (T::*member)(GattReadAuthCallbackParams *)) {
00417         readAuthorizationCallback.attach(object, member);
00418         enabledReadAuthorization = true;
00419     }
00420 
00421     /**
00422      * Helper that calls the registered handler to determine the authorization
00423      * reply for a write request. This function is meant to be called from the
00424      * BLE stack specific implementation.
00425      *
00426      * @param[in] params
00427      *              To capture the context of the write-auth request. Also
00428      *              contains an out-parameter for reply.
00429      *
00430      * @return A GattAuthCallbackReply_t value indicating whether authorization
00431      *         is granted.
00432      */
00433     GattAuthCallbackReply_t authorizeWrite(GattWriteAuthCallbackParams *params) {
00434         if (!isWriteAuthorizationEnabled()) {
00435             return AUTH_CALLBACK_REPLY_SUCCESS;
00436         }
00437 
00438         params->authorizationReply = AUTH_CALLBACK_REPLY_SUCCESS; /* Initialized to no-error by default. */
00439         writeAuthorizationCallback.call(params);
00440         return params->authorizationReply;
00441     }
00442 
00443     /**
00444      * Helper that calls the registered handler to determine the authorization
00445      * reply for a read request. This function is meant to be called from the
00446      * BLE stack specific implementation.
00447      *
00448      * @param[in] params
00449      *              To capture the context of the read-auth request.
00450      *
00451      * @return A GattAuthCallbackReply_t value indicating whether authorization
00452      *         is granted.
00453      *
00454      * @note   To authorize or deny the read the params->authorizationReply field
00455      *         should be set to true (authorize) or false (deny).
00456      *
00457      * @note   If the read is approved and params->data is unchanged (NULL),
00458      *         the current characteristic value will be used.
00459      *
00460      * @note   If the read is approved, a new value can be provided by setting
00461      *         the params->data pointer and params->len fields.
00462      */
00463     GattAuthCallbackReply_t authorizeRead(GattReadAuthCallbackParams *params) {
00464         if (!isReadAuthorizationEnabled()) {
00465             return AUTH_CALLBACK_REPLY_SUCCESS;
00466         }
00467 
00468         params->authorizationReply = AUTH_CALLBACK_REPLY_SUCCESS; /* Initialized to no-error by default. */
00469         readAuthorizationCallback.call(params);
00470         return params->authorizationReply;
00471     }
00472 
00473 public:
00474     /**
00475      * Get the characteristic's value attribute.
00476      *
00477      * @return A reference to the characteristic's value attribute.
00478      */
00479     GattAttribute& getValueAttribute() {
00480         return _valueAttribute;
00481     }
00482 
00483     /**
00484      * A const alternative to GattCharacteristic::getValueAttribute().
00485      *
00486      * @return A const reference to the characteristic's value attribute.
00487      */
00488     const GattAttribute& getValueAttribute() const {
00489         return _valueAttribute;
00490     }
00491 
00492     /**
00493      * Get the characteristic's value attribute handle in the ATT table.
00494      *
00495      * @return The value attribute handle.
00496      *
00497      * @note The attribute handle is typically assigned by the underlying BLE
00498      *       stack.
00499      */
00500     GattAttribute::Handle_t getValueHandle(void) const {
00501         return getValueAttribute().getHandle();
00502     }
00503 
00504     /**
00505      * Get the characteristic's propertied. Refer to
00506      * GattCharacteristic::Properties_t.
00507      *
00508      * @return The characteristic's properties.
00509      */
00510     uint8_t getProperties(void) const {
00511         return _properties;
00512     }
00513 
00514     /**
00515      * Get the characteristic's required security.
00516      *
00517      * @return The characteristic's required security.
00518      */
00519     SecurityManager::SecurityMode_t getRequiredSecurity() const {
00520         return _requiredSecurity;
00521     }
00522 
00523     /**
00524      * Get the total number of descriptors within this characteristic.
00525      *
00526      * @return The total number of descriptors.
00527      */
00528     uint8_t getDescriptorCount(void) const {
00529         return _descriptorCount;
00530     }
00531 
00532     /**
00533      * Check whether read authorization is enabled i.e. check whether a
00534      * read authorization callback was previously registered. Refer to
00535      * GattCharacteristic::setReadAuthorizationCallback().
00536      *
00537      * @return true if read authorization is enabled, false otherwise.
00538      */
00539     bool isReadAuthorizationEnabled() const {
00540         return enabledReadAuthorization;
00541     }
00542 
00543     /**
00544      * Check whether write authorization is enabled i.e. check whether a
00545      * write authorization callback was previously registered. Refer to
00546      * GattCharacteristic::setReadAuthorizationCallback().
00547      *
00548      * @return true if write authorization is enabled, false otherwise.
00549      */
00550     bool isWriteAuthorizationEnabled() const {
00551         return enabledWriteAuthorization;
00552     }
00553 
00554     /**
00555      * Get this characteristic's descriptor at a specific index.
00556      *
00557      * @param[in] index
00558      *              The descriptor's index.
00559      *
00560      * @return A pointer the requested descriptor if @p index contains a valid
00561      *         descriptor, or NULL otherwise.
00562      */
00563     GattAttribute *getDescriptor(uint8_t index) {
00564         if (index >= _descriptorCount) {
00565             return NULL;
00566         }
00567 
00568         return _descriptors[index];
00569     }
00570 
00571 private:
00572     /**
00573      * Attribute that contains the actual value of this characteristic.
00574      */
00575     GattAttribute                     _valueAttribute;
00576     /**
00577      * The characteristic's properties. Refer to
00578      * GattCharacteristic::Properties_t.
00579      */
00580     uint8_t                           _properties;
00581     /**
00582      * The characteristic's required security.
00583      */
00584     SecurityManager::SecurityMode_t   _requiredSecurity;
00585     /**
00586      * The characteristic's descriptor attributes.
00587      */
00588     GattAttribute                   **_descriptors;
00589     /**
00590      * The number of descriptors in this characteristic.
00591      */
00592     uint8_t                           _descriptorCount;
00593 
00594     /**
00595      * Whether read authorization is enabled i.e. whether there is a registered
00596      * callback to determine read authorization reply.
00597      */
00598     bool enabledReadAuthorization;
00599     /**
00600      * Whether write authorization is enabled i.e. whether there is a registered
00601      * callback to determine write authorization reply.
00602      */
00603     bool enabledWriteAuthorization;
00604     /**
00605      * The registered callback handler for read authorization reply.
00606      */
00607     FunctionPointerWithContext<GattReadAuthCallbackParams *>   readAuthorizationCallback;
00608     /**
00609      * The registered callback handler for write authorization reply.
00610      */
00611     FunctionPointerWithContext<GattWriteAuthCallbackParams *>  writeAuthorizationCallback;
00612 
00613 private:
00614     /* Disallow copy and assignment. */
00615     GattCharacteristic(const GattCharacteristic &);
00616     GattCharacteristic& operator=(const GattCharacteristic &);
00617 };
00618 
00619 /**
00620  * Helper class to construct a read-only GattCharacteristic.
00621  */
00622 template <typename T>
00623 class ReadOnlyGattCharacteristic : public GattCharacteristic {
00624 public:
00625     /**
00626      * Construct a ReadOnlyGattCharacteristic.
00627      *
00628      * @param[in] uuid
00629      *              The characteristic's UUID.
00630      * @param[in] valuePtr
00631      *              Pointer to the characterisitic's initial value.
00632      * @param[in] additionalProperties
00633      *              Additional characterisitic properties. By default, the
00634      *              properties are set to
00635      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
00636      * @param[in] descriptors
00637      *              An array of pointers to descriptors to be added to the new
00638      *              characteristic.
00639      * @param[in] numDescriptors
00640      *              The total number of descriptors in @p descriptors.
00641      *
00642      * @note Instances of ReadOnlyGattCharacteristic have a fixed length
00643      *       attribute value that equals sizeof(T). For a variable length
00644      *       alternative use GattCharacteristic directly.
00645      */
00646     ReadOnlyGattCharacteristic<T>(const UUID    &uuid,
00647                                   T             *valuePtr,
00648                                   uint8_t        additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
00649                                   GattAttribute *descriptors[]        = NULL,
00650                                   unsigned       numDescriptors       = 0) :
00651         GattCharacteristic(uuid, reinterpret_cast<uint8_t *>(valuePtr), sizeof(T), sizeof(T),
00652                            BLE_GATT_CHAR_PROPERTIES_READ | additionalProperties, descriptors, numDescriptors, false) {
00653         /* empty */
00654     }
00655 };
00656 
00657 /**
00658  * Helper class to construct a write-only GattCharacteristic.
00659  */
00660 template <typename T>
00661 class WriteOnlyGattCharacteristic : public GattCharacteristic {
00662 public:
00663     /**
00664      * Construct a WriteOnlyGattCharacteristic.
00665      *
00666      * @param[in] uuid
00667      *              The characteristic's UUID.
00668      * @param[in] valuePtr
00669      *              Pointer to the characterisitic's initial value.
00670      * @param[in] additionalProperties
00671      *              Additional characterisitic properties. By default, the
00672      *              properties are set to
00673      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE.
00674      * @param[in] descriptors
00675      *              An array of pointers to descriptors to be added to the new
00676      *              characteristic.
00677      * @param[in] numDescriptors
00678      *              The total number of descriptors in @p descriptors.
00679      *
00680      * @note Instances of WriteOnlyGattCharacteristic have variable length
00681      *       attribute value with maximum size equal to sizeof(T). For a fixed length
00682      *       alternative use GattCharacteristic directly.
00683      */
00684     WriteOnlyGattCharacteristic<T>(const UUID     &uuid,
00685                                    T              *valuePtr,
00686                                    uint8_t        additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
00687                                    GattAttribute *descriptors[]        = NULL,
00688                                    unsigned       numDescriptors       = 0) :
00689         GattCharacteristic(uuid, reinterpret_cast<uint8_t *>(valuePtr), sizeof(T), sizeof(T),
00690                            BLE_GATT_CHAR_PROPERTIES_WRITE | additionalProperties, descriptors, numDescriptors) {
00691         /* empty */
00692     }
00693 };
00694 
00695 /**
00696  * Helper class to construct a readable and writable GattCharacteristic.
00697  */
00698 template <typename T>
00699 class ReadWriteGattCharacteristic : public GattCharacteristic {
00700 public:
00701     /**
00702      * Construct a ReadWriteGattCharacteristic.
00703      *
00704      * @param[in] uuid
00705      *              The characteristic's UUID.
00706      * @param[in] valuePtr
00707      *              Pointer to the characterisitic's initial value.
00708      * @param[in] additionalProperties
00709      *              Additional characterisitic properties. By default, the
00710      *              properties are set to
00711      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE |
00712      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
00713      * @param[in] descriptors
00714      *              An array of pointers to descriptors to be added to the new
00715      *              characteristic.
00716      * @param[in] numDescriptors
00717      *              The total number of descriptors in @p descriptors.
00718      *
00719      * @note Instances of ReadWriteGattCharacteristic have variable length
00720      *       attribute value with maximum size equal to sizeof(T). For a fixed length
00721      *       alternative use GattCharacteristic directly.
00722      */
00723     ReadWriteGattCharacteristic<T>(const UUID    &uuid,
00724                                    T             *valuePtr,
00725                                    uint8_t        additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
00726                                    GattAttribute *descriptors[]        = NULL,
00727                                    unsigned       numDescriptors       = 0) :
00728         GattCharacteristic(uuid, reinterpret_cast<uint8_t *>(valuePtr), sizeof(T), sizeof(T),
00729                            BLE_GATT_CHAR_PROPERTIES_READ | BLE_GATT_CHAR_PROPERTIES_WRITE | additionalProperties, descriptors, numDescriptors) {
00730         /* empty */
00731     }
00732 };
00733 
00734 /**
00735  * Helper class to construct a write-only GattCharacteristic with an array
00736  * value.
00737  */
00738 template <typename T, unsigned NUM_ELEMENTS>
00739 class WriteOnlyArrayGattCharacteristic : public GattCharacteristic {
00740 public:
00741     /**
00742      * Construct a WriteOnlyGattCharacteristic.
00743      *
00744      * @param[in] uuid
00745      *              The characteristic's UUID.
00746      * @param[in] valuePtr
00747      *              Pointer to an array of length NUM_ELEMENTS containing the
00748      *              characteristic's intitial value.
00749      * @param[in] additionalProperties
00750      *              Additional characterisitic properties. By default, the
00751      *              properties are set to
00752      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE.
00753      * @param[in] descriptors
00754      *              An array of pointers to descriptors to be added to the new
00755      *              characteristic.
00756      * @param[in] numDescriptors
00757      *              The total number of descriptors in @p descriptors.
00758      *
00759      * @note Instances of WriteOnlyGattCharacteristic have variable length
00760      *       attribute value with maximum size equal to sizeof(T) * NUM_ELEMENTS.
00761      *       For a fixed length alternative use GattCharacteristic directly.
00762      */
00763     WriteOnlyArrayGattCharacteristic<T, NUM_ELEMENTS>(const          UUID &uuid,
00764                                                       T              valuePtr[NUM_ELEMENTS],
00765                                                       uint8_t        additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
00766                                                       GattAttribute *descriptors[]        = NULL,
00767                                                       unsigned       numDescriptors       = 0) :
00768         GattCharacteristic(uuid, reinterpret_cast<uint8_t *>(valuePtr), sizeof(T) * NUM_ELEMENTS, sizeof(T) * NUM_ELEMENTS,
00769                            BLE_GATT_CHAR_PROPERTIES_WRITE | additionalProperties, descriptors, numDescriptors) {
00770         /* empty */
00771     }
00772 };
00773 
00774 /**
00775  * Helper class to construct a read-only GattCharacteristic with an array
00776  * value.
00777  */
00778 template <typename T, unsigned NUM_ELEMENTS>
00779 class ReadOnlyArrayGattCharacteristic : public GattCharacteristic {
00780 public:
00781     /**
00782      * Construct a ReadOnlyGattCharacteristic.
00783      *
00784      * @param[in] uuid
00785      *              The characteristic's UUID.
00786      * @param[in] valuePtr
00787      *              Pointer to an array of length NUM_ELEMENTS containing the
00788      *              characteristic's intitial value.
00789      * @param[in] additionalProperties
00790      *              Additional characterisitic properties. By default, the
00791      *              properties are set to
00792      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
00793      * @param[in] descriptors
00794      *              An array of pointers to descriptors to be added to the new
00795      *              characteristic.
00796      * @param[in] numDescriptors
00797      *              The total number of descriptors in @p descriptors.
00798      *
00799      * @note Instances of ReadOnlyGattCharacteristic have fixed length
00800      *       attribute value that equals sizeof(T) * NUM_ELEMENTS.
00801      *       For a variable length alternative use GattCharacteristic directly.
00802      */
00803     ReadOnlyArrayGattCharacteristic<T, NUM_ELEMENTS>(const UUID    &uuid,
00804                                                      T              valuePtr[NUM_ELEMENTS],
00805                                                      uint8_t        additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
00806                                                      GattAttribute *descriptors[]        = NULL,
00807                                                      unsigned       numDescriptors       = 0) :
00808         GattCharacteristic(uuid, reinterpret_cast<uint8_t *>(valuePtr), sizeof(T) * NUM_ELEMENTS, sizeof(T) * NUM_ELEMENTS,
00809                            BLE_GATT_CHAR_PROPERTIES_READ | additionalProperties, descriptors, numDescriptors, false) {
00810         /* empty */
00811     }
00812 };
00813 
00814 /**
00815  * Helper class to construct a readable and writable GattCharacteristic with an array
00816  * value.
00817  */
00818 template <typename T, unsigned NUM_ELEMENTS>
00819 class ReadWriteArrayGattCharacteristic : public GattCharacteristic {
00820 public:
00821     /**
00822      * Construct a ReadWriteGattCharacteristic.
00823      *
00824      * @param[in] uuid
00825      *              The characteristic's UUID.
00826      * @param[in] valuePtr
00827      *              Pointer to an array of length NUM_ELEMENTS containing the
00828      *              characteristic's intitial value.
00829      * @param[in] additionalProperties
00830      *              Additional characterisitic properties. By default, the
00831      *              properties are set to
00832      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE |
00833      *              Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
00834      * @param[in] descriptors
00835      *              An array of pointers to descriptors to be added to the new
00836      *              characteristic.
00837      * @param[in] numDescriptors
00838      *              The total number of descriptors in @p descriptors.
00839      *
00840      * @note Instances of ReadWriteGattCharacteristic have variable length
00841      *       attribute value with maximum size equal to sizeof(T) * NUM_ELEMENTS.
00842      *       For a fixed length alternative use GattCharacteristic directly.
00843      */
00844     ReadWriteArrayGattCharacteristic<T, NUM_ELEMENTS>(const UUID    &uuid,
00845                                                       T              valuePtr[NUM_ELEMENTS],
00846                                                       uint8_t        additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
00847                                                       GattAttribute *descriptors[]        = NULL,
00848                                                       unsigned       numDescriptors       = 0) :
00849         GattCharacteristic(uuid, reinterpret_cast<uint8_t *>(valuePtr), sizeof(T) * NUM_ELEMENTS, sizeof(T) * NUM_ELEMENTS,
00850                            BLE_GATT_CHAR_PROPERTIES_READ | BLE_GATT_CHAR_PROPERTIES_WRITE | additionalProperties, descriptors, numDescriptors) {
00851         /* empty */
00852     }
00853 };
00854 
00855 #endif /* ifndef __GATT_CHARACTERISTIC_H__ */