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c65e0ea6e3
Note: This firmware does *not* support Rev B units. Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* USRP E310 Firmware Misc utility macros
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* Copyright (C) 2014 Ettus Research
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* This file is part of the USRP E310 Firmware
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* The USRP E310 Firmware is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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* The USRP E310 Firmware is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with the USRP E310 Firmware. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file utils.h
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* \brief Misc utility macros
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*/
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#ifndef UTILS_H
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#define UTILS_H
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#include <stddef.h>
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/**
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* \brief Returns the size of a (static) array
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*
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* \param x Array
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* \warning Do NOT use on pointers
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*/
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#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
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/**
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* \brief A ISO compliant version of the linux kernel's container_of macro.
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* This allows implementing multiple interfaces in a struct.
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*/
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#ifdef __GNUC__
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#define member_type(type, member) __typeof__ (((type *)0)->member)
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#else
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#define member_type(type, member) const void
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#endif
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#define container_of(ptr, type, member) ((type *)( \
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(char *)(member_type(type, member) *){ ptr } - offsetof(type, member)))
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/**
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* \brief Convenience macro to make bitmasks more readable
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*/
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#define BIT(bit) (1 << (bit))
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#endif /* UTILS_H */
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