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Diffstat (limited to 'tinyusb/common/binary.h')
| -rw-r--r-- | tinyusb/common/binary.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/tinyusb/common/binary.h b/tinyusb/common/binary.h new file mode 100644 index 000000000..e46bd92e0 --- /dev/null +++ b/tinyusb/common/binary.h @@ -0,0 +1,102 @@ +/* + * binary.h + * + * Created on: Jan 11, 2013 + * Author: hathach + */ + +/* + * Software License Agreement (BSD License) + * Copyright (c) 2012, hathach (tinyusb.net) + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * This file is part of the tiny usb stack. + */ + +/** \file + * \brief TBD + * + * \note TBD + */ + +/** \ingroup TBD + * \defgroup TBD + * \brief TBD + * + * @{ + */ + +#ifndef _TUSB_BINARY_H_ +#define _TUSB_BINARY_H_ + +#ifdef __cplusplus + extern "C" { +#endif + +#include <stdint.h> + +/// n-th Bit +#define BIT_(n) (1 << (n)) + +/// set n-th bit of x to 1 +#define BIT_SET_(x, n) ( (x) | BIT_(n) ) + +/// clear n-th bit of x +#define BIT_CLR_(x, n) ( (x) & (~BIT_(n)) ) + +#if defined(__GNUC__) + +#define BIN8(x) (0b##x) +#define BIN16 BIN8 +#define BIN32 BIN8 + +#else + +// internal macro of B8, B16, B32 +#define _B8__(x) ((x&0x0000000FLU)?1:0) \ + +((x&0x000000F0LU)?2:0) \ + +((x&0x00000F00LU)?4:0) \ + +((x&0x0000F000LU)?8:0) \ + +((x&0x000F0000LU)?16:0) \ + +((x&0x00F00000LU)?32:0) \ + +((x&0x0F000000LU)?64:0) \ + +((x&0xF0000000LU)?128:0) + +#define BIN8(d) ((uint8_t)_B8__(0x##d##LU)) +#define BIN16(dmsb,dlsb) (((uint16_t)B8(dmsb)<<8) + B8(dlsb)) +#define BIN32(dmsb,db2,db3,dlsb) \ + (((uint32_t)B8(dmsb)<<24) \ + + ((uint32_t)B8(db2)<<16) \ + + ((uint32_t)B8(db3)<<8) \ + + B8(dlsb)) +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* _TUSB_BINARY_H_ */ + +/** @} */ |
