Bluetooth Low Energy C macros for use with the Texas Instruments BTLE Stack 1.4.x.

ble_macros.h

#ifndef BLE_MACROS
#define BLE_MACROS

#include "att.h"
#include "gatt_uuid.h"

#define BLE_PRIMARY_SERVICE(permissions, valuePtr) \
  { \
    { ATT_BT_UUID_SIZE, primaryServiceUUID }, \
    permissions, \
    0, \
    valuePtr \
  }

#define BLE_START_CHARACTERISTIC(description, permissions, valuePtr) \
  /* description is unused intentionally, it's for code-readability at the call-site */ \
  { { ATT_BT_UUID_SIZE, characterUUID }, \
    permissions, \
    0, \
    valuePtr \
  }

#define BLE_CHARACTERISTIC_VALUE(permissions, uuid, valuePtr) \
  { \
    { ATT_UUID_SIZE, uuid }, \
    permissions, \
    0, \
    valuePtr \
  }

#define BLE_CHARACTERISTIC_CLIENT_CONFIG(permissions, valuePtr) \
  { \
    { ATT_BT_UUID_SIZE, clientCharCfgUUID }, \
    permissions, \
    0, \
    valuePtr \
  }  

#define BLE_CHARACTERISTIC_USER_DESCRIPTION(permissions, valuePtr) \
  { \
    { ATT_BT_UUID_SIZE, charUserDescUUID }, \
    permissions, \
    0, \
    valuePtr \
  }

#endif /* BLE_MACROS */

example-0-before.c

static gattAttribute_t attrTbl[] =
{
  /* START OF SERVICE */
  {
    { ATT_BT_UUID_SIZE, primaryServiceUUID },
    GATT_PERMIT_READ,
    0,
    (uint8 *)&service
  },

    /* ADVERTISTING INTERVAL CHARACTERISTIC DECLARATION */
    { 
      { ATT_BT_UUID_SIZE, characterUUID },
      GATT_PERMIT_READ,
      0,
      &charProps
    },

      /* ADVERTISTING INTERVAL CHARACTERISTIC DESCRIPTOR */
      {
        { ATT_UUID_SIZE, advIntervalUUID },
        GATT_PERMIT_READ | GATT_PERMIT_WRITE,
        0,
        &config.advIntervalValue
      },

      {
        { ATT_BT_UUID_SIZE, clientCharCfgUUID },
        GATT_PERMIT_READ,
        0,
        (uint8 *)advIntervalConfig
      },

      { \
        { ATT_BT_UUID_SIZE, charUserDescUUID }, \
        GATT_PERMIT_READ,
        0,
        advIntervalDescription 
      },

    /* ADVERTISTING INTERVAL CHARACTERISTIC DECLARATION */
    { 
      { ATT_BT_UUID_SIZE, characterUUID },
      GATT_PERMIT_READ,
      0,
      &charProps
    },

      {
        { ATT_UUID_SIZE, txPowerUUID },
        GATT_PERMIT_READ | GATT_PERMIT_WRITE,
        0,
        &config.txPowerValue
      },

      {
        { ATT_BT_UUID_SIZE, clientCharCfgUUID },
        GATT_PERMIT_READ,
        0,
        (uint8 *)txPowerConfig
      },

      {
        { ATT_BT_UUID_SIZE, charUserDescUUID },
        GATT_PERMIT_READ,
        0,
        txPowerDescription 
      }
};

example-1-after.c

static gattAttribute_t attrTbl[] =
{
  BLE_PRIMARY_SERVICE(GATT_PERMIT_READ, (uint8 *)&service),

    BLE_START_CHARACTERISTIC("Adv. Interval", GATT_PERMIT_READ, &charProps),
      BLE_CHARACTERISTIC_VALUE(GATT_PERMIT_READ | GATT_PERMIT_WRITE, advIntervalUUID, &config.adv),
      BLE_CHARACTERISTIC_CLIENT_CONFIG(GATT_PERMIT_READ, (uint8 *)advIntervalConfig),
      BLE_CHARACTERISTIC_USER_DESCRIPTION(GATT_PERMIT_READ, advIntervalDescription),

    BLE_START_CHARACTERISTIC("TxPower", GATT_PERMIT_READ, &charProps),
      BLE_CHARACTERISTIC_VALUE(GATT_PERMIT_READ | GATT_PERMIT_WRITE, txPowerUUID, &config.adv),
      BLE_CHARACTERISTIC_CLIENT_CONFIG(GATT_PERMIT_READ, (uint8 *)txPowerConfig),
      BLE_CHARACTERISTIC_USER_DESCRIPTION(GATT_PERMIT_READ, txPowerDescription)

};