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-/**
- * \file
- *
- * \brief Different macros.
- *
- * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
- *
- * \asf_license_start
- *
- * \page License
- *
- * Subject to your compliance with these terms, you may use Microchip
- * software and any derivatives exclusively with Microchip products.
- * It is your responsibility to comply with third party license terms applicable
- * to your use of third party software (including open source software) that
- * may accompany Microchip software.
- *
- * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
- * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
- * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
- * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
- * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
- * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
- * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
- * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
- * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
- * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
- * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
- *
- * \asf_license_stop
- *
- */
-
-#ifndef UTILS_H_INCLUDED
-#define UTILS_H_INCLUDED
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \addtogroup doc_driver_hal_utils_macro
- *
- * @{
- */
-
-/**
- * \brief Retrieve pointer to parent structure
- */
-#define CONTAINER_OF(ptr, type, field_name) ((type *)(((uint8_t *)ptr) - offsetof(type, field_name)))
-
-/**
- * \brief Retrieve array size
- */
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
-
-/**
- * \brief Emit the compiler pragma \a arg.
- *
- * \param[in] arg The pragma directive as it would appear after \e \#pragma
- * (i.e. not stringified).
- */
-#define COMPILER_PRAGMA(arg) _Pragma(#arg)
-
-/**
- * \def COMPILER_PACK_SET(alignment)
- * \brief Set maximum alignment for subsequent struct and union definitions to \a alignment.
- */
-#define COMPILER_PACK_SET(alignment) COMPILER_PRAGMA(pack(alignment))
-
-/**
- * \def COMPILER_PACK_RESET()
- * \brief Set default alignment for subsequent struct and union definitions.
- */
-#define COMPILER_PACK_RESET() COMPILER_PRAGMA(pack())
-
-/**
- * \brief Set aligned boundary.
- */
-#if defined __GNUC__
-#define COMPILER_ALIGNED(a) __attribute__((__aligned__(a)))
-#elif defined __ICCARM__
-#define COMPILER_ALIGNED(a) COMPILER_PRAGMA(data_alignment = a)
-#elif defined __CC_ARM
-#define COMPILER_ALIGNED(a) __attribute__((__aligned__(a)))
-#endif
-
-/**
- * \brief Flash located data macros
- */
-#if defined __GNUC__
-#define PROGMEM_DECLARE(type, name) const type name
-#define PROGMEM_T const
-#define PROGMEM_READ_BYTE(x) *((uint8_t *)(x))
-#define PROGMEM_PTR_T const *
-#define PROGMEM_STRING_T const uint8_t *
-#elif defined __ICCARM__
-#define PROGMEM_DECLARE(type, name) const type name
-#define PROGMEM_T const
-#define PROGMEM_READ_BYTE(x) *((uint8_t *)(x))
-#define PROGMEM_PTR_T const *
-#define PROGMEM_STRING_T const uint8_t *
-#elif defined __CC_ARM
-#define PROGMEM_DECLARE(type, name) const type name
-#define PROGMEM_T const
-#define PROGMEM_READ_BYTE(x) *((uint8_t *)(x))
-#define PROGMEM_PTR_T const *
-#define PROGMEM_STRING_T const uint8_t *
-#endif
-
-/**
- * \brief Optimization
- */
-#if defined __GNUC__
-#define OPTIMIZE_HIGH __attribute__((optimize(s)))
-#elif defined __CC_ARM
-#define OPTIMIZE_HIGH _Pragma("O3")
-#elif defined __ICCARM__
-#define OPTIMIZE_HIGH _Pragma("optimize=high")
-#endif
-
-/**
- * \brief RAM located function attribute
- */
-#if defined(__CC_ARM) /* Keil ?Vision 4 */
-#define RAMFUNC __attribute__((section(".ramfunc")))
-#elif defined(__ICCARM__) /* IAR Ewarm 5.41+ */
-#define RAMFUNC __ramfunc
-#elif defined(__GNUC__) /* GCC CS3 2009q3-68 */
-#define RAMFUNC __attribute__((section(".ramfunc")))
-#endif
-
-/**
- * \brief No-init section.
- * Place a data object or a function in a no-init section.
- */
-#if defined(__CC_ARM)
-#define NO_INIT(a) __attribute__((zero_init))
-#elif defined(__ICCARM__)
-#define NO_INIT(a) __no_init
-#elif defined(__GNUC__)
-#define NO_INIT(a) __attribute__((section(".no_init")))
-#endif
-
-/**
- * \brief Set user-defined section.
- * Place a data object or a function in a user-defined section.
- */
-#if defined(__CC_ARM)
-#define COMPILER_SECTION(a) __attribute__((__section__(a)))
-#elif defined(__ICCARM__)
-#define COMPILER_SECTION(a) COMPILER_PRAGMA(location = a)
-#elif defined(__GNUC__)
-#define COMPILER_SECTION(a) __attribute__((__section__(a)))
-#endif
-
-/**
- * \brief Define WEAK attribute.
- */
-#if defined(__CC_ARM) /* Keil ?Vision 4 */
-#define WEAK __attribute__((weak))
-#elif defined(__ICCARM__) /* IAR Ewarm 5.41+ */
-#define WEAK __weak
-#elif defined(__GNUC__) /* GCC CS3 2009q3-68 */
-#define WEAK __attribute__((weak))
-#endif
-
-/**
- * \brief Pointer to function
- */
-typedef void (*FUNC_PTR)(void);
-
-#define LE_BYTE0(a) ((uint8_t)(a))
-#define LE_BYTE1(a) ((uint8_t)((a) >> 8))
-#define LE_BYTE2(a) ((uint8_t)((a) >> 16))
-#define LE_BYTE3(a) ((uint8_t)((a) >> 24))
-
-#define LE_2_U16(p) ((p)[0] + ((p)[1] << 8))
-#define LE_2_U32(p) ((p)[0] + ((p)[1] << 8) + ((p)[2] << 16) + ((p)[3] << 24))
-
-/** \name Zero-Bit Counting
- *
- * Under GCC, __builtin_clz and __builtin_ctz behave like macros when
- * applied to constant expressions (values known at compile time), so they are
- * more optimized than the use of the corresponding assembly instructions and
- * they can be used as constant expressions e.g. to initialize objects having
- * static storage duration, and like the corresponding assembly instructions
- * when applied to non-constant expressions (values unknown at compile time), so
- * they are more optimized than an assembly periphrasis. Hence, clz and ctz
- * ensure a possible and optimized behavior for both constant and non-constant
- * expressions.
- *
- * @{ */
-
-/** \brief Counts the leading zero bits of the given value considered as a 32-bit integer.
- *
- * \param[in] u Value of which to count the leading zero bits.
- *
- * \return The count of leading zero bits in \a u.
- */
-#if (defined __GNUC__) || (defined __CC_ARM)
-#define clz(u) __builtin_clz(u)
-#else
-#define clz(u) \
- ( \
- ((u) == 0) \
- ? 32 \
- : ((u) & (1ul << 31)) \
- ? 0 \
- : ((u) & (1ul << 30)) \
- ? 1 \
- : ((u) & (1ul << 29)) \
- ? 2 \
- : ((u) & (1ul << 28)) \
- ? 3 \
- : ((u) & (1ul << 27)) \
- ? 4 \
- : ((u) & (1ul << 26)) \
- ? 5 \
- : ((u) & (1ul << 25)) \
- ? 6 \
- : ((u) & (1ul << 24)) \
- ? 7 \
- : ((u) & (1ul << 23)) \
- ? 8 \
- : ((u) & (1ul << 22)) \
- ? 9 \
- : ((u) & (1ul << 21)) \
- ? 10 \
- : ((u) & (1ul << 20)) \
- ? 11 \
- : ((u) & (1ul << 19)) \
- ? 12 \
- : ((u) & (1ul << 18)) \
- ? 13 \
- : ((u) & (1ul << 17)) ? 14 \
- : ((u) & (1ul << 16)) ? 15 \
- : ((u) & (1ul << 15)) ? 16 \
- : ((u) & (1ul << 14)) ? 17 \
- : ((u) & (1ul << 13)) ? 18 \
- : ((u) & (1ul << 12)) ? 19 \
- : ((u) \
- & (1ul \
- << 11)) \
- ? 20 \
- : ((u) \
- & (1ul \
- << 10)) \
- ? 21 \
- : ((u) \
- & (1ul \
- << 9)) \
- ? 22 \
- : ((u) \
- & (1ul \
- << 8)) \
- ? 23 \
- : ((u) & (1ul << 7)) ? 24 \
- : ((u) & (1ul << 6)) ? 25 \
- : ((u) \
- & (1ul \
- << 5)) \
- ? 26 \
- : ((u) & (1ul << 4)) ? 27 \
- : ((u) & (1ul << 3)) ? 28 \
- : ((u) & (1ul << 2)) ? 29 \
- : ( \
- (u) & (1ul << 1)) \
- ? 30 \
- : 31)
-#endif
-
-/** \brief Counts the trailing zero bits of the given value considered as a 32-bit integer.
- *
- * \param[in] u Value of which to count the trailing zero bits.
- *
- * \return The count of trailing zero bits in \a u.
- */
-#if (defined __GNUC__) || (defined __CC_ARM)
-#define ctz(u) __builtin_ctz(u)
-#else
-#define ctz(u) \
- ( \
- (u) & (1ul << 0) \
- ? 0 \
- : (u) & (1ul << 1) \
- ? 1 \
- : (u) & (1ul << 2) \
- ? 2 \
- : (u) & (1ul << 3) \
- ? 3 \
- : (u) & (1ul << 4) \
- ? 4 \
- : (u) & (1ul << 5) \
- ? 5 \
- : (u) & (1ul << 6) \
- ? 6 \
- : (u) & (1ul << 7) \
- ? 7 \
- : (u) & (1ul << 8) \
- ? 8 \
- : (u) & (1ul << 9) \
- ? 9 \
- : (u) & (1ul << 10) \
- ? 10 \
- : (u) & (1ul << 11) \
- ? 11 \
- : (u) & (1ul << 12) \
- ? 12 \
- : (u) & (1ul << 13) \
- ? 13 \
- : (u) & (1ul << 14) \
- ? 14 \
- : (u) & (1ul << 15) \
- ? 15 \
- : (u) & (1ul << 16) \
- ? 16 \
- : (u) & (1ul << 17) \
- ? 17 \
- : (u) & (1ul << 18) \
- ? 18 \
- : (u) & (1ul << 19) ? 19 \
- : (u) & (1ul << 20) ? 20 \
- : (u) & (1ul << 21) ? 21 \
- : (u) & (1ul << 22) ? 22 \
- : (u) & (1ul << 23) ? 23 \
- : (u) & (1ul << 24) ? 24 \
- : (u) & (1ul << 25) ? 25 \
- : (u) & (1ul << 26) ? 26 \
- : (u) & (1ul << 27) ? 27 \
- : (u) & (1ul << 28) ? 28 : (u) & (1ul << 29) ? 29 : (u) & (1ul << 30) ? 30 : (u) & (1ul << 31) ? 31 : 32)
-#endif
-/** @} */
-
-/**
- * \brief Counts the number of bits in a mask (no more than 32 bits)
- * \param[in] mask Mask of which to count the bits.
- */
-#define size_of_mask(mask) (32 - clz(mask) - ctz(mask))
-
-/**
- * \brief Retrieve the start position of bits mask (no more than 32 bits)
- * \param[in] mask Mask of which to retrieve the start position.
- */
-#define pos_of_mask(mask) ctz(mask)
-
-/**
- * \brief Return division result of a/b and round up the result to the closest
- * number divisible by "b"
- */
-#define round_up(a, b) (((a)-1) / (b) + 1)
-
-/**
- * \brief Get the minimum of x and y
- */
-#define min(x, y) ((x) > (y) ? (y) : (x))
-
-/**
- * \brief Get the maximum of x and y
- */
-#define max(x, y) ((x) > (y) ? (x) : (y))
-
-/**@}*/
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* UTILS_H_INCLUDED */
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