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/**
* @file iterators.h
*
* @brief Useful iterators for working with channels, etc
*
* Copyright (c) 2018 Nuand LLC.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/**
* @brief Translate a bladerf_direction and channel number to a
* bladerf_channel
*
* @param _dir Direction
* @param _idx Channel number
*
* @return BLADERF_CHANNEL_TX(_idx) or BLADERF_CHANNEL_RX(_idx)
*/
#define CHANNEL_IDX(_dir, _idx) \
(BLADERF_TX == _dir) ? BLADERF_CHANNEL_TX(_idx) : BLADERF_CHANNEL_RX(_idx)
/**
* @brief Iterate over all bladerf_directions
*
* @param _dir Direction
*/
#define FOR_EACH_DIRECTION(_dir) \
for (_dir = BLADERF_RX; _dir <= BLADERF_TX; ++_dir)
/**
* @brief Iterate over all channels in a given direction
*
* @param _dir Direction
* @param _count Number of channels
* @param[out] _index Index variable (size_t)
* @param[out] _channel Channel variable (bladerf_channel)
*
* @return { description_of_the_return_value }
*/
#define FOR_EACH_CHANNEL(_dir, _count, _index, _channel) \
for (_index = 0, _channel = CHANNEL_IDX(_dir, _index); _index < _count; \
++_index, _channel = CHANNEL_IDX(_dir, _index))
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