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https://gitee.com/bianbu-linux/usb-gadget
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65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Miscellaneous Tools
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*
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* Copyright (C) 2018 Laurent Pinchart
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*
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* This file comes from the omap3-isp-live project
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* (git://git.ideasonboard.org/omap3-isp-live.git)
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*
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* Copyright (C) 2010-2011 Ideas on board SPRL
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*
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* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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*/
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#ifndef __TOOLS_H__
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#define __TOOLS_H__
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#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
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#define min(a, b) ({ \
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typeof(a) __a = (a); \
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typeof(b) __b = (b); \
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__a < __b ? __a : __b; \
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})
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#define min_t(type, a, b) ({ \
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type __a = (a); \
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type __b = (b); \
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__a < __b ? __a : __b; \
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})
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#define max(a, b) ({ \
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typeof(a) __a = (a); \
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typeof(b) __b = (b); \
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__a > __b ? __a : __b; \
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})
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#define max_t(type, a, b) ({ \
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type __a = (a); \
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type __b = (b); \
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__a > __b ? __a : __b; \
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})
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#define clamp(val, min, max) ({ \
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typeof(val) __val = (val); \
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typeof(min) __min = (min); \
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typeof(max) __max = (max); \
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__val = __val < __min ? __min : __val; \
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__val > __max ? __max : __val; \
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})
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#define clamp_t(type, val, min, max) ({ \
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type __val = (val); \
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type __min = (min); \
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type __max = (max); \
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__val = __val < __min ? __min : __val; \
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__val > __max ? __max : __val; \
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})
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#define div_round_up(num, denom) (((num) + (denom) - 1) / (denom))
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#define container_of(ptr, type, member) \
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(type *)((char *)(ptr) - offsetof(type, member))
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#endif /* __TOOLS_H__ */
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