High level Bluetooth Low Energy API and radio abstraction layer
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Diff: ble/GapScanningParams.h
- Revision:
- 1173:56507890f134
- Parent:
- 1048:efb29faf12fc
- Child:
- 1179:4ab722f8dca0
diff -r 4aad76f757e6 -r 56507890f134 ble/GapScanningParams.h --- a/ble/GapScanningParams.h Wed Apr 06 19:15:18 2016 +0100 +++ b/ble/GapScanningParams.h Wed Apr 06 19:15:19 2016 +0100 @@ -1,68 +1,152 @@ -/* mbed Microcontroller Library - * Copyright (c) 2006-2013 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. -*/ - -#ifndef __GAP_SCANNING_PARAMS_H__ -#define __GAP_SCANNING_PARAMS_H__ - -class GapScanningParams { -public: - static const unsigned SCAN_INTERVAL_MIN = 0x0004; /**< Minimum Scan interval in 625us units - 2.5ms. */ - static const unsigned SCAN_INTERVAL_MAX = 0x4000; /**< Maximum Scan interval in 625us units - 10.24s. */ - static const unsigned SCAN_WINDOW_MIN = 0x0004; /**< Minimum Scan window in 625us units - 2.5ms. */ - static const unsigned SCAN_WINDOW_MAX = 0x4000; /**< Maximum Scan window in 625us units - 10.24s. */ - static const unsigned SCAN_TIMEOUT_MIN = 0x0001; /**< Minimum Scan timeout in seconds. */ - static const unsigned SCAN_TIMEOUT_MAX = 0xFFFF; /**< Maximum Scan timeout in seconds. */ - -public: - GapScanningParams(uint16_t interval = SCAN_INTERVAL_MAX, - uint16_t window = SCAN_WINDOW_MAX, - uint16_t timeout = 0, - bool activeScanning = false); - - static const uint16_t UNIT_0_625_MS = 625; /**< Number of microseconds in 0.625 milliseconds. */ - static uint16_t MSEC_TO_SCAN_DURATION_UNITS(uint32_t durationInMillis) { - return (durationInMillis * 1000) / UNIT_0_625_MS; - } - - ble_error_t setInterval(uint16_t newIntervalInMS); - - ble_error_t setWindow(uint16_t newWindowInMS); - - ble_error_t setTimeout(uint16_t newTimeout); - - void setActiveScanning(bool activeScanning); - -public: - /* @Note: The following return durations in units of 0.625ms */ - uint16_t getInterval(void) const {return _interval;} - uint16_t getWindow(void) const {return _window; } - - uint16_t getTimeout(void) const {return _timeout; } - bool getActiveScanning(void) const {return _activeScanning;} - -private: - uint16_t _interval; /**< Scan interval in units of 625us (between 2.5ms and 10.24s). */ - uint16_t _window; /**< Scan window in units of 625us (between 2.5ms and 10.24s). */ - uint16_t _timeout; /**< Scan timeout between 0x0001 and 0xFFFF in seconds; 0x0000 disables timeout. */ - bool _activeScanning; /**< Obtain the peer device's advertising data and (if possible) scanResponse. */ - -private: - /* Disallow copy constructor. */ - GapScanningParams(const GapScanningParams &); - GapScanningParams& operator =(const GapScanningParams &in); -}; - -#endif // ifndef __GAP_SCANNING_PARAMS_H__ \ No newline at end of file +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. +*/ + +#ifndef __GAP_SCANNING_PARAMS_H__ +#define __GAP_SCANNING_PARAMS_H__ + +class GapScanningParams { +public: + static const unsigned SCAN_INTERVAL_MIN = 0x0004; /**< Minimum Scan interval in 625us units - 2.5ms. */ + static const unsigned SCAN_INTERVAL_MAX = 0x4000; /**< Maximum Scan interval in 625us units - 10.24s. */ + static const unsigned SCAN_WINDOW_MIN = 0x0004; /**< Minimum Scan window in 625us units - 2.5ms. */ + static const unsigned SCAN_WINDOW_MAX = 0x4000; /**< Maximum Scan window in 625us units - 10.24s. */ + static const unsigned SCAN_TIMEOUT_MIN = 0x0001; /**< Minimum Scan timeout in seconds. */ + static const unsigned SCAN_TIMEOUT_MAX = 0xFFFF; /**< Maximum Scan timeout in seconds. */ + +public: + /** + * Construct an instance of GapScanningParams. + * + * @param[in] interval + * The scan interval in milliseconds. Default is + * GapScanningParams::SCAN_INTERVAL_MIN. + * @param[in] window + * The scan window in milliseconds. Default is + * GapScanningParams::SCAN_WINDOW_MAX. + * @param[in] timeout + * The scan timeout in seconds. Default is 0. + * @param[in] activeScanning + * Set to True if active-scanning is required. This is used to + * fetch the scan response from a peer if possible. Default is + * false. + */ + GapScanningParams(uint16_t interval = SCAN_INTERVAL_MAX, + uint16_t window = SCAN_WINDOW_MAX, + uint16_t timeout = 0, + bool activeScanning = false); + + static const uint16_t UNIT_0_625_MS = 625; /**< Number of microseconds in 0.625 milliseconds. */ + /** + * Convert milliseconds to units of 0.625ms. + * + * @param[in] durationInMillis + * The number of milliseconds to convert. + * + * @return The value of @p durationInMillis in units of 0.625ms. + */ + static uint16_t MSEC_TO_SCAN_DURATION_UNITS(uint32_t durationInMillis) { + return (durationInMillis * 1000) / UNIT_0_625_MS; + } + + /** + * Set the scan interval. + * + * @param[in] newIntervalInMS + * New scan interval in milliseconds. + * + * @return BLE_ERROR_NONE if the new scan interval was set successfully. + */ + ble_error_t setInterval(uint16_t newIntervalInMS); + + /** + * Set the scan window. + * + * @param[in] newWindowInMS + * New scan window in milliseconds. + * + * @return BLE_ERROR_NONE if the new scan window was set successfully. + */ + ble_error_t setWindow(uint16_t newWindowInMS); + + /** + * Set the scan timeout. + * + * @param[in] newTimeout + * New scan timeout in seconds. + * + * @return BLE_ERROR_NONE if the new scan window was set successfully. + */ + ble_error_t setTimeout(uint16_t newTimeout); + + /** + * Set active scanning. This is used to fetch the scan response from a peer + * if possible. + * + * @param[in] activeScanning + * The new boolean value of active scanning. + */ + void setActiveScanning(bool activeScanning); + +public: + /** + * Get the scan interval. + * + * @return the scan interval in units of 0.625ms. + */ + uint16_t getInterval(void) const { + return _interval; + } + + /** + * Get the scan window. + * + * @return the scan window in units of 0.625ms. + */ + uint16_t getWindow(void) const { + return _window; + } + + /** + * Get the scan timeout. + * + * @return The scan timeout in seconds. + */ + uint16_t getTimeout(void) const { + return _timeout; + } + + /** + * Check whether active scanning is set. + * + * @return True if active scanning is set, false otherwise. + */ + bool getActiveScanning(void) const { + return _activeScanning; + } + +private: + uint16_t _interval; /**< Scan interval in units of 625us (between 2.5ms and 10.24s). */ + uint16_t _window; /**< Scan window in units of 625us (between 2.5ms and 10.24s). */ + uint16_t _timeout; /**< Scan timeout between 0x0001 and 0xFFFF in seconds; 0x0000 disables timeout. */ + bool _activeScanning; /**< Obtain the peer device's advertising data and (if possible) scanResponse. */ + +private: + /* Disallow copy constructor. */ + GapScanningParams(const GapScanningParams &); + GapScanningParams& operator =(const GapScanningParams &in); +}; + +#endif /* ifndef __GAP_SCANNING_PARAMS_H__ */ \ No newline at end of file