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Compiler abstraction layer and code utilities

Compiler abstraction layer and code utilities for AT91SAM.

This module provides various abstraction layers and utilities to make code compatible between different compilers.

Modules

 Preprocessor - Macro Repeat
 
 Preprocessor - Token Paste
 
 Preprocessor - Stringize
 

Data Structures

struct  StructCPtr
 Structure of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers. More...
 
struct  StructCVPtr
 Structure of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers. More...
 
struct  StructPtr
 Structure of pointers to 64-, 32-, 16- and 8-bit unsigned integers. More...
 
struct  StructVPtr
 Structure of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers. More...
 
union  Union16
 16-bit union. More...
 
union  Union32
 32-bit union. More...
 
union  Union64
 64-bit union. More...
 
union  UnionCPtr
 Union of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers. More...
 
union  UnionCVPtr
 Union of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers. More...
 
union  UnionPtr
 Union of pointers to 64-, 32-, 16- and 8-bit unsigned integers. More...
 
union  UnionVPtr
 Union of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers. More...
 

Macros

#define __always_inline   inline __attribute__((__always_inline__))
 The function should always be inlined. More...
 
#define __no_inline   __attribute__((__noinline__))
 The function should not be inlined. More...
 
#define ADDR_COPY_DST_SRC_16(dst, src)   ((dst) = (src))
 
#define ADDR_COPY_DST_SRC_64(dst, src)   ((dst) = (src))
 
#define barrier()   __DMB()
 Memory barrier. More...
 
#define CCPU_ENDIAN_TO_LE16(x)   (x)
 
#define CCPU_ENDIAN_TO_LE32(x)   (x)
 
#define CCPU_ENDIAN_TO_LE64(x)   (x)
 
#define CLE16_TO_CPU_ENDIAN(x)   (x)
 
#define CLE32_TO_CPU_ENDIAN(x)   (x)
 
#define CLE64_TO_CPU_ENDIAN(x)   (x)
 
#define CMD_ID_OCTET   (0)
 
#define COMPILER_ALIGNED(a)   __attribute__((__aligned__(a)))
 Set aligned boundary. More...
 
#define COMPILER_PACK_RESET()   COMPILER_PRAGMA(pack())
 Set default alignment for subsequent struct and union definitions. More...
 
#define COMPILER_PACK_SET(alignment)   COMPILER_PRAGMA(pack(alignment))
 Set maximum alignment for subsequent struct and union definitions to alignment. More...
 
#define COMPILER_PRAGMA(arg)   _Pragma(#arg)
 Emit the compiler pragma arg. More...
 
#define COMPILER_WORD_ALIGNED   __attribute__((__aligned__(4)))
 Set word-aligned boundary. More...
 
#define CPU_ENDIAN_TO_LE16(x)   (x)
 
#define CPU_ENDIAN_TO_LE32(x)   (x)
 
#define CPU_ENDIAN_TO_LE64(x)   (x)
 
#define div_ceil(a, b)   (((a) + (b) - 1) / (b))
 Calculate \( \left\lceil \frac{a}{b} \right\rceil \) using integer arithmetic. More...
 
#define FLASH_DECLARE(x)   const x
 
#define FLASH_EXTERN(x)   extern const x
 
#define FUNC_PTR   void *
 
#define LE16_TO_CPU_ENDIAN(x)   (x)
 
#define LE32_TO_CPU_ENDIAN(x)   (x)
 
#define LE64_TO_CPU_ENDIAN(x)   (x)
 
#define Long_call(addr)   ((*(void (*)(void))(addr))())
 Calls the routine at address addr. More...
 
#define MEMCPY_ENDIAN   memcpy
 
#define NO_INIT   __attribute__((section(".no_init")))
 
#define nop()   (__NOP())
 
#define OPTIMIZE_HIGH   __attribute__((optimize("s")))
 
#define PGM_READ_BLOCK(dst, src, len)   memcpy((dst), (src), (len))
 
#define PGM_READ_BYTE(x)   *(x)
 
#define PGM_READ_DWORD(x)   *(x)
 
#define PGM_READ_WORD(x)   *(x)
 
#define RAMFUNC   __attribute__ ((section(".ramfunc")))
 
#define SHORTENUM   __attribute__((packed))
 
#define UNUSED(v)   (void)(v)
 Marking v as a unused parameter or value. More...
 
#define unused(v)   do { (void)(v); } while(0)
 Marking v as a unused parameter or value. More...
 
#define WEAK   __attribute__ ((weak))
 This macro is used to test fatal errors. More...
 

Functions

static void convert_16_bit_to_byte_address (uint16_t value, uint8_t *data)
 
static void convert_16_bit_to_byte_array (uint16_t value, uint8_t *data)
 Converts a 16-Bit value into a 2 Byte array. More...
 
static void convert_64_bit_to_byte_array (uint64_t value, uint8_t *data)
 Converts a 64-Bit value into a 8 Byte array. More...
 
static uint16_t convert_byte_array_to_16_bit (uint8_t *data)
 
static uint32_t convert_byte_array_to_32_bit (uint8_t *data)
 
static uint64_t convert_byte_array_to_64_bit (uint8_t *data)
 Converts a 8 Byte array into a 64-Bit value. More...
 
static void convert_spec_16_bit_to_byte_array (uint16_t value, uint8_t *data)
 

Usual Types

typedef unsigned char Bool
 Boolean. More...
 
typedef unsigned char bool
 Boolean. More...
 
typedef int8_t S8
 8-bit signed integer. More...
 
typedef uint8_t U8
 8-bit unsigned integer. More...
 
typedef int16_t S16
 16-bit signed integer. More...
 
typedef uint16_t U16
 16-bit unsigned integer. More...
 
typedef uint16_t le16_t
 
typedef uint16_t be16_t
 
typedef int32_t S32
 32-bit signed integer. More...
 
typedef uint32_t U32
 32-bit unsigned integer. More...
 
typedef uint32_t le32_t
 
typedef uint32_t be32_t
 
typedef int64_t S64
 64-bit signed integer. More...
 
typedef uint64_t U64
 64-bit unsigned integer. More...
 
typedef float F32
 32-bit floating-point number. More...
 
typedef double F64
 64-bit floating-point number. More...
 
typedef uint32_t iram_size_t
 

Status Types

typedef bool Status_bool_t
 Boolean status. More...
 
typedef U8 Status_t
 8-bit-coded status. More...
 

Usual Constants

#define DISABLE   0
 
#define ENABLE   1
 
#define false   0
 
#define true   1
 
#define PASS   0
 
#define FAIL   1
 
#define LOW   0
 
#define HIGH   1
 

Optimization Control

#define likely(exp)   (exp)
 The expression exp is likely to be true. More...
 
#define unlikely(exp)   (exp)
 The expression exp is unlikely to be true. More...
 
#define is_constant(exp)   __builtin_constant_p(exp)
 Determine if an expression evaluates to a constant value. More...
 

Bit-Field Handling

#define Rd_bits(value, mask)   ((value) & (mask))
 Reads the bits of a value specified by a given bit-mask. More...
 
#define Wr_bits(lvalue, mask, bits)
 Writes the bits of a C lvalue specified by a given bit-mask. More...
 
#define Tst_bits(value, mask)   (Rd_bits(value, mask) != 0)
 Tests the bits of a value specified by a given bit-mask. More...
 
#define Clr_bits(lvalue, mask)   ((lvalue) &= ~(mask))
 Clears the bits of a C lvalue specified by a given bit-mask. More...
 
#define Set_bits(lvalue, mask)   ((lvalue) |= (mask))
 Sets the bits of a C lvalue specified by a given bit-mask. More...
 
#define Tgl_bits(lvalue, mask)   ((lvalue) ^= (mask))
 Toggles the bits of a C lvalue specified by a given bit-mask. More...
 
#define Rd_bitfield(value, mask)   (Rd_bits( value, mask) >> ctz(mask))
 Reads the bit-field of a value specified by a given bit-mask. More...
 
#define Wr_bitfield(lvalue, mask, bitfield)   (Wr_bits(lvalue, mask, (U32)(bitfield) << ctz(mask)))
 Writes the bit-field of a C lvalue specified by a given bit-mask. More...
 

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.

#define clz(u)   ((u) ? __builtin_clz(u) : 32)
 Counts the leading zero bits of the given value considered as a 32-bit integer. More...
 
#define ctz(u)   ((u) ? __builtin_ctz(u) : 32)
 Counts the trailing zero bits of the given value considered as a 32-bit integer. More...
 

Bit Reversing

#define bit_reverse8(u8)   ((U8)(bit_reverse32((U8)(u8)) >> 24))
 Reverses the bits of u8. More...
 
#define bit_reverse16(u16)   ((U16)(bit_reverse32((U16)(u16)) >> 16))
 Reverses the bits of u16. More...
 
#define bit_reverse32(u32)   __RBIT(u32)
 Reverses the bits of u32. More...
 
#define bit_reverse64(u64)
 Reverses the bits of u64. More...
 

Alignment

#define Test_align(val, n)   (!Tst_bits( val, (n) - 1 ) )
 Tests alignment of the number val with the n boundary. More...
 
#define Get_align(val, n)   ( Rd_bits( val, (n) - 1 ) )
 Gets alignment of the number val with respect to the n boundary. More...
 
#define Set_align(lval, n, alg)   ( Wr_bits(lval, (n) - 1, alg) )
 Sets alignment of the lvalue number lval to alg with respect to the n boundary. More...
 
#define Align_up(val, n)   (((val) + ((n) - 1)) & ~((n) - 1))
 Aligns the number val with the upper n boundary. More...
 
#define Align_down(val, n)   ( (val) & ~((n) - 1))
 Aligns the number val with the lower n boundary. More...
 

Mathematics

The same considerations as for clz and ctz apply here but GCC does not provide built-in functions to access the assembly instructions abs, min and max and it does not produce them by itself in most cases, so two sets of macros are defined here:

  • Abs, Min and Max to apply to constant expressions (values known at compile time);
  • abs, min and max to apply to non-constant expressions (values unknown at compile time), abs is found in stdlib.h.
#define Abs(a)   (((a) < 0 ) ? -(a) : (a))
 Takes the absolute value of a. More...
 
#define Min(a, b)   (((a) < (b)) ? (a) : (b))
 Takes the minimal value of a and b. More...
 
#define Max(a, b)   (((a) > (b)) ? (a) : (b))
 Takes the maximal value of a and b. More...
 
#define min(a, b)   Min(a, b)
 Takes the minimal value of a and b. More...
 
#define max(a, b)   Max(a, b)
 Takes the maximal value of a and b. More...
 

MCU Endianism Handling

ARM is MCU little endianism.

#define MSB(u16)   (((U8 *)&(u16))[1])
 Most significant byte of u16. More...
 
#define LSB(u16)   (((U8 *)&(u16))[0])
 Least significant byte of u16. More...
 
#define MSH(u32)   (((U16 *)&(u32))[1])
 Most significant half-word of u32. More...
 
#define LSH(u32)   (((U16 *)&(u32))[0])
 Least significant half-word of u32. More...
 
#define MSB0W(u32)   (((U8 *)&(u32))[3])
 Most significant byte of 1st rank of u32. More...
 
#define MSB1W(u32)   (((U8 *)&(u32))[2])
 Most significant byte of 2nd rank of u32. More...
 
#define MSB2W(u32)   (((U8 *)&(u32))[1])
 Most significant byte of 3rd rank of u32. More...
 
#define MSB3W(u32)   (((U8 *)&(u32))[0])
 Most significant byte of 4th rank of u32. More...
 
#define LSB3W(u32)   MSB0W(u32)
 Least significant byte of 4th rank of u32. More...
 
#define LSB2W(u32)   MSB1W(u32)
 Least significant byte of 3rd rank of u32. More...
 
#define LSB1W(u32)   MSB2W(u32)
 Least significant byte of 2nd rank of u32. More...
 
#define LSB0W(u32)   MSB3W(u32)
 Least significant byte of 1st rank of u32. More...
 
#define MSW(u64)   (((U32 *)&(u64))[1])
 Most significant word of u64. More...
 
#define LSW(u64)   (((U32 *)&(u64))[0])
 Least significant word of u64. More...
 
#define MSH0(u64)   (((U16 *)&(u64))[3])
 Most significant half-word of 1st rank of u64. More...
 
#define MSH1(u64)   (((U16 *)&(u64))[2])
 Most significant half-word of 2nd rank of u64. More...
 
#define MSH2(u64)   (((U16 *)&(u64))[1])
 Most significant half-word of 3rd rank of u64. More...
 
#define MSH3(u64)   (((U16 *)&(u64))[0])
 Most significant half-word of 4th rank of u64. More...
 
#define LSH3(u64)   MSH0(u64)
 Least significant half-word of 4th rank of u64. More...
 
#define LSH2(u64)   MSH1(u64)
 Least significant half-word of 3rd rank of u64. More...
 
#define LSH1(u64)   MSH2(u64)
 Least significant half-word of 2nd rank of u64. More...
 
#define LSH0(u64)   MSH3(u64)
 Least significant half-word of 1st rank of u64. More...
 
#define MSB0D(u64)   (((U8 *)&(u64))[7])
 Most significant byte of 1st rank of u64. More...
 
#define MSB1D(u64)   (((U8 *)&(u64))[6])
 Most significant byte of 2nd rank of u64. More...
 
#define MSB2D(u64)   (((U8 *)&(u64))[5])
 Most significant byte of 3rd rank of u64. More...
 
#define MSB3D(u64)   (((U8 *)&(u64))[4])
 Most significant byte of 4th rank of u64. More...
 
#define MSB4D(u64)   (((U8 *)&(u64))[3])
 Most significant byte of 5th rank of u64. More...
 
#define MSB5D(u64)   (((U8 *)&(u64))[2])
 Most significant byte of 6th rank of u64. More...
 
#define MSB6D(u64)   (((U8 *)&(u64))[1])
 Most significant byte of 7th rank of u64. More...
 
#define MSB7D(u64)   (((U8 *)&(u64))[0])
 Most significant byte of 8th rank of u64. More...
 
#define LSB7D(u64)   MSB0D(u64)
 Least significant byte of 8th rank of u64. More...
 
#define LSB6D(u64)   MSB1D(u64)
 Least significant byte of 7th rank of u64. More...
 
#define LSB5D(u64)   MSB2D(u64)
 Least significant byte of 6th rank of u64. More...
 
#define LSB4D(u64)   MSB3D(u64)
 Least significant byte of 5th rank of u64. More...
 
#define LSB3D(u64)   MSB4D(u64)
 Least significant byte of 4th rank of u64. More...
 
#define LSB2D(u64)   MSB5D(u64)
 Least significant byte of 3rd rank of u64. More...
 
#define LSB1D(u64)   MSB6D(u64)
 Least significant byte of 2nd rank of u64. More...
 
#define LSB0D(u64)   MSB7D(u64)
 Least significant byte of 1st rank of u64. More...
 
#define BE16(x)   swap16(x)
 
#define LE16(x)   (x)
 
#define le16_to_cpu(x)   (x)
 
#define cpu_to_le16(x)   (x)
 
#define LE16_TO_CPU(x)   (x)
 
#define CPU_TO_LE16(x)   (x)
 
#define be16_to_cpu(x)   swap16(x)
 
#define cpu_to_be16(x)   swap16(x)
 
#define BE16_TO_CPU(x)   swap16(x)
 
#define CPU_TO_BE16(x)   swap16(x)
 
#define le32_to_cpu(x)   (x)
 
#define cpu_to_le32(x)   (x)
 
#define LE32_TO_CPU(x)   (x)
 
#define CPU_TO_LE32(x)   (x)
 
#define be32_to_cpu(x)   swap32(x)
 
#define cpu_to_be32(x)   swap32(x)
 
#define BE32_TO_CPU(x)   swap32(x)
 
#define CPU_TO_BE32(x)   swap32(x)
 

Endianism Conversion

The same considerations as for clz and ctz apply here but GCC's __builtin_bswap_32 and __builtin_bswap_64 do not behave like macros when applied to constant expressions, so two sets of macros are defined here:

  • Swap16, Swap32 and Swap64 to apply to constant expressions (values known at compile time);
  • swap16, swap32 and swap64 to apply to non-constant expressions (values unknown at compile time).
#define Swap16(u16)
 Toggles the endianism of u16 (by swapping its bytes). More...
 
#define Swap32(u32)
 Toggles the endianism of u32 (by swapping its bytes). More...
 
#define Swap64(u64)
 Toggles the endianism of u64 (by swapping its bytes). More...
 
#define swap16(u16)   Swap16(u16)
 Toggles the endianism of u16 (by swapping its bytes). More...
 
#define swap32(u32)   ((U32)__builtin_bswap32((U32)(u32)))
 Toggles the endianism of u32 (by swapping its bytes). More...
 
#define swap64(u64)   ((U64)__builtin_bswap64((U64)(u64)))
 Toggles the endianism of u64 (by swapping its bytes). More...
 

Target Abstraction

typedef U8 Byte
 8-bit unsigned integer. More...
 
#define _GLOBEXT_   extern
 extern storage-class specifier. More...
 
#define _CONST_TYPE_   const
 const type qualifier. More...
 
#define _MEM_TYPE_SLOW_
 Slow memory type. More...
 
#define _MEM_TYPE_MEDFAST_
 Fairly fast memory type. More...
 
#define _MEM_TYPE_FAST_
 Fast memory type. More...
 
#define memcmp_ram2ram   memcmp
 Target-specific memcmp of RAM to RAM. More...
 
#define memcmp_code2ram   memcmp
 Target-specific memcmp of RAM to NVRAM. More...
 
#define memcpy_ram2ram   memcpy
 Target-specific memcpy from RAM to RAM. More...
 
#define memcpy_code2ram   memcpy
 Target-specific memcpy from NVRAM to RAM. More...
 
#define LSB0(u32)   LSB0W(u32)
 Least significant byte of 1st rank of u32. More...
 
#define LSB1(u32)   LSB1W(u32)
 Least significant byte of 2nd rank of u32. More...
 
#define LSB2(u32)   LSB2W(u32)
 Least significant byte of 3rd rank of u32. More...
 
#define LSB3(u32)   LSB3W(u32)
 Least significant byte of 4th rank of u32. More...
 
#define MSB3(u32)   MSB3W(u32)
 Most significant byte of 4th rank of u32. More...
 
#define MSB2(u32)   MSB2W(u32)
 Most significant byte of 3rd rank of u32. More...
 
#define MSB1(u32)   MSB1W(u32)
 Most significant byte of 2nd rank of u32. More...
 
#define MSB0(u32)   MSB0W(u32)
 Most significant byte of 1st rank of u32. More...
 

#define __always_inline   inline __attribute__((__always_inline__))

The function should always be inlined.

This annotation instructs the compiler to ignore its inlining heuristics and inline the function no matter how big it thinks it becomes.

#define __no_inline   __attribute__((__noinline__))

The function should not be inlined.

This annotation instructs the compiler to ignore its inlining heuristics and not inline the function.

#define _CONST_TYPE_   const

const type qualifier.

#define _GLOBEXT_   extern

extern storage-class specifier.

#define _MEM_TYPE_FAST_

Fast memory type.

#define _MEM_TYPE_MEDFAST_

Fairly fast memory type.

#define _MEM_TYPE_SLOW_

Slow memory type.

#define Abs (   a)    (((a) < 0 ) ? -(a) : (a))

Takes the absolute value of a.

Parameters
aInput value.
Returns
Absolute value of a.
Note
More optimized if only used with values known at compile time.
#define ADDR_COPY_DST_SRC_16 (   dst,
  src 
)    ((dst) = (src))
#define ADDR_COPY_DST_SRC_64 (   dst,
  src 
)    ((dst) = (src))
#define Align_down (   val,
 
)    ( (val) & ~((n) - 1))

Aligns the number val with the lower n boundary.

Parameters
valInput value.
nBoundary.
Returns
Value resulting from the number val aligned with the lower n boundary.
#define Align_up (   val,
 
)    (((val) + ((n) - 1)) & ~((n) - 1))

Aligns the number val with the upper n boundary.

Parameters
valInput value.
nBoundary.
Returns
Value resulting from the number val aligned with the upper n boundary.
#define BE16 (   x)    swap16(x)
#define be16_to_cpu (   x)    swap16(x)
#define BE16_TO_CPU (   x)    swap16(x)
#define be32_to_cpu (   x)    swap32(x)
#define BE32_TO_CPU (   x)    swap32(x)
#define bit_reverse16 (   u16)    ((U16)(bit_reverse32((U16)(u16)) >> 16))

Reverses the bits of u16.

Parameters
u16U16 of which to reverse the bits.
Returns
Value resulting from u16 with reversed bits.
#define bit_reverse32 (   u32)    __RBIT(u32)

Reverses the bits of u32.

Parameters
u32U32 of which to reverse the bits.
Returns
Value resulting from u32 with reversed bits.
#define bit_reverse64 (   u64)
Value:
((U64)(((U64)bit_reverse32((U64)(u64) >> 32)) |\
((U64)bit_reverse32((U64)(u64)) << 32)))
uint64_t U64
64-bit unsigned integer.
Definition: compiler.h:267
#define bit_reverse32(u32)
Reverses the bits of u32.
Definition: compiler.h:697

Reverses the bits of u64.

Parameters
u64U64 of which to reverse the bits.
Returns
Value resulting from u64 with reversed bits.
#define bit_reverse8 (   u8)    ((U8)(bit_reverse32((U8)(u8)) >> 24))

Reverses the bits of u8.

Parameters
u8U8 of which to reverse the bits.
Returns
Value resulting from u8 with reversed bits.

Referenced by ssd1306_draw_graph().

#define CCPU_ENDIAN_TO_LE16 (   x)    (x)
#define CCPU_ENDIAN_TO_LE32 (   x)    (x)
#define CCPU_ENDIAN_TO_LE64 (   x)    (x)
#define CLE16_TO_CPU_ENDIAN (   x)    (x)
#define CLE32_TO_CPU_ENDIAN (   x)    (x)
#define CLE64_TO_CPU_ENDIAN (   x)    (x)
#define Clr_bits (   lvalue,
  mask 
)    ((lvalue) &= ~(mask))

Clears the bits of a C lvalue specified by a given bit-mask.

Parameters
lvalueC lvalue of which to clear bits.
maskBit-mask indicating bits to clear.
Returns
Resulting value with cleared bits.
#define clz (   u)    ((u) ? __builtin_clz(u) : 32)

Counts the leading zero bits of the given value considered as a 32-bit integer.

Parameters
uValue of which to count the leading zero bits.
Returns
The count of leading zero bits in u.
#define CMD_ID_OCTET   (0)
#define COMPILER_ALIGNED (   a)    __attribute__((__aligned__(a)))

Set aligned boundary.

Referenced by stream_mem_to_mem().

#define COMPILER_PACK_RESET ( )    COMPILER_PRAGMA(pack())

Set default alignment for subsequent struct and union definitions.

#define COMPILER_PACK_SET (   alignment)    COMPILER_PRAGMA(pack(alignment))

Set maximum alignment for subsequent struct and union definitions to alignment.

#define COMPILER_PRAGMA (   arg)    _Pragma(#arg)

Emit the compiler pragma arg.

Parameters
argThe pragma directive as it would appear after #pragma (i.e. not stringified).
#define COMPILER_WORD_ALIGNED   __attribute__((__aligned__(4)))

Set word-aligned boundary.

#define CPU_ENDIAN_TO_LE16 (   x)    (x)
#define CPU_ENDIAN_TO_LE32 (   x)    (x)
#define CPU_ENDIAN_TO_LE64 (   x)    (x)
#define cpu_to_be16 (   x)    swap16(x)

Referenced by udi_msc_spc_mode_sense().

#define CPU_TO_BE16 (   x)    swap16(x)
#define cpu_to_be32 (   x)    swap32(x)
#define CPU_TO_BE32 (   x)    swap32(x)
#define CPU_TO_LE16 (   x)    (x)
#define cpu_to_le32 (   x)    (x)
#define CPU_TO_LE32 (   x)    (x)

Referenced by udi_cdc_comm_enable().

#define ctz (   u)    ((u) ? __builtin_ctz(u) : 32)

Counts the trailing zero bits of the given value considered as a 32-bit integer.

Parameters
uValue of which to count the trailing zero bits.
Returns
The count of trailing zero bits in u.
#define DISABLE   0
#define div_ceil (   a,
 
)    (((a) + (b) - 1) / (b))

Calculate \( \left\lceil \frac{a}{b} \right\rceil \) using integer arithmetic.

Parameters
aAn integer
bAnother integer
Returns
(a / b) rounded up to the nearest integer.

Referenced by spi_calc_baudrate_div().

#define ENABLE   1
#define FAIL   1
#define false   0
#define FLASH_DECLARE (   x)    const x
#define FLASH_EXTERN (   x)    extern const x
#define FUNC_PTR   void *
#define Get_align (   val,
 
)    ( Rd_bits( val, (n) - 1 ) )

Gets alignment of the number val with respect to the n boundary.

Parameters
valInput value.
nBoundary.
Returns
Alignment of the number val with respect to the n boundary.
#define HIGH   1
#define is_constant (   exp)    __builtin_constant_p(exp)

Determine if an expression evaluates to a constant value.

Parameters
expAny expression
Returns
true if exp is constant, false otherwise.
#define LE16 (   x)    (x)
#define LE16_TO_CPU (   x)    (x)
#define LE16_TO_CPU_ENDIAN (   x)    (x)
#define le32_to_cpu (   x)    (x)
#define LE32_TO_CPU (   x)    (x)

Referenced by uart_config().

#define LE32_TO_CPU_ENDIAN (   x)    (x)
#define LE64_TO_CPU_ENDIAN (   x)    (x)
#define likely (   exp)    (exp)

The expression exp is likely to be true.

#define Long_call (   addr)    ((*(void (*)(void))(addr))())

Calls the routine at address addr.

It generates a long call opcode.

For example, `Long_call(0x80000000)' generates a software reset on a UC3 if it is invoked from the CPU supervisor mode.

Parameters
addrAddress of the routine to call.
Note
It may be used as a long jump opcode in some special cases.
#define LOW   0
#define LSB (   u16)    (((U8 *)&(u16))[0])

Least significant byte of u16.

Referenced by udi_msc_sbc_trans().

#define LSB0 (   u32)    LSB0W(u32)

Least significant byte of 1st rank of u32.

#define LSB0D (   u64)    MSB7D(u64)

Least significant byte of 1st rank of u64.

#define LSB0W (   u32)    MSB3W(u32)

Least significant byte of 1st rank of u32.

Referenced by at45dbx_read_byte_open(), and at45dbx_write_byte_open().

#define LSB1 (   u32)    LSB1W(u32)

Least significant byte of 2nd rank of u32.

#define LSB1D (   u64)    MSB6D(u64)

Least significant byte of 2nd rank of u64.

#define LSB1W (   u32)    MSB2W(u32)

Least significant byte of 2nd rank of u32.

Referenced by at45dbx_read_byte_open(), and at45dbx_write_byte_open().

#define LSB2 (   u32)    LSB2W(u32)

Least significant byte of 3rd rank of u32.

#define LSB2D (   u64)    MSB5D(u64)

Least significant byte of 3rd rank of u64.

#define LSB2W (   u32)    MSB1W(u32)

Least significant byte of 3rd rank of u32.

Referenced by at45dbx_read_byte_open(), and at45dbx_write_byte_open().

#define LSB3 (   u32)    LSB3W(u32)

Least significant byte of 4th rank of u32.

#define LSB3D (   u64)    MSB4D(u64)

Least significant byte of 4th rank of u64.

#define LSB3W (   u32)    MSB0W(u32)

Least significant byte of 4th rank of u32.

#define LSB4D (   u64)    MSB3D(u64)

Least significant byte of 5th rank of u64.

#define LSB5D (   u64)    MSB2D(u64)

Least significant byte of 6th rank of u64.

#define LSB6D (   u64)    MSB1D(u64)

Least significant byte of 7th rank of u64.

#define LSB7D (   u64)    MSB0D(u64)

Least significant byte of 8th rank of u64.

#define LSH (   u32)    (((U16 *)&(u32))[0])

Least significant half-word of u32.

#define LSH0 (   u64)    MSH3(u64)

Least significant half-word of 1st rank of u64.

#define LSH1 (   u64)    MSH2(u64)

Least significant half-word of 2nd rank of u64.

#define LSH2 (   u64)    MSH1(u64)

Least significant half-word of 3rd rank of u64.

#define LSH3 (   u64)    MSH0(u64)

Least significant half-word of 4th rank of u64.

#define LSW (   u64)    (((U32 *)&(u64))[0])

Least significant word of u64.

#define Max (   a,
 
)    (((a) > (b)) ? (a) : (b))

Takes the maximal value of a and b.

Parameters
aInput value.
bInput value.
Returns
Maximal value of a and b.
Note
More optimized if only used with values known at compile time.

Referenced by main_extra_string(), uhi_cdc_install(), and virtual_mem_2_ram().

#define max (   a,
 
)    Max(a, b)

Takes the maximal value of a and b.

Parameters
aInput value.
bInput value.
Returns
Maximal value of a and b.
Note
More optimized if only used with values unknown at compile time.

Referenced by memp_init(), pbuf_memfind(), and wdt_get_timeout_value().

#define memcmp_code2ram   memcmp

Target-specific memcmp of RAM to NVRAM.

#define memcmp_ram2ram   memcmp

Target-specific memcmp of RAM to RAM.

#define memcpy_code2ram   memcpy

Target-specific memcpy from NVRAM to RAM.

#define MEMCPY_ENDIAN   memcpy
#define memcpy_ram2ram   memcpy

Target-specific memcpy from RAM to RAM.

#define Min (   a,
 
)    (((a) < (b)) ? (a) : (b))

Takes the minimal value of a and b.

Parameters
aInput value.
bInput value.
Returns
Minimal value of a and b.
Note
More optimized if only used with values known at compile time.

Referenced by at25dfx_write(), and flash_write().

#define min (   a,
 
)    Min(a, b)

Takes the minimal value of a and b.

Parameters
aInput value.
bInput value.
Returns
Minimal value of a and b.
Note
More optimized if only used with values unknown at compile time.

Referenced by main_setup_in_received(), main_setup_out_received(), udi_hid_reqstdifaceget_descriptor(), virtual_mem_2_ram(), virtual_usb_trans(), and wdt_get_timeout_value().

#define MSB (   u16)    (((U8 *)&(u16))[1])

Most significant byte of u16.

Referenced by udi_msc_sbc_trans().

#define MSB0 (   u32)    MSB0W(u32)

Most significant byte of 1st rank of u32.

Referenced by udi_msc_sbc_trans().

#define MSB0D (   u64)    (((U8 *)&(u64))[7])

Most significant byte of 1st rank of u64.

#define MSB0W (   u32)    (((U8 *)&(u32))[3])

Most significant byte of 1st rank of u32.

Referenced by uhi_msc_scsi_read_10(), and uhi_msc_scsi_write_10().

#define MSB1 (   u32)    MSB1W(u32)

Most significant byte of 2nd rank of u32.

Referenced by udi_msc_sbc_trans().

#define MSB1D (   u64)    (((U8 *)&(u64))[6])

Most significant byte of 2nd rank of u64.

#define MSB1W (   u32)    (((U8 *)&(u32))[2])

Most significant byte of 2nd rank of u32.

Referenced by uhi_msc_scsi_read_10(), and uhi_msc_scsi_write_10().

#define MSB2 (   u32)    MSB2W(u32)

Most significant byte of 3rd rank of u32.

Referenced by udi_msc_sbc_trans().

#define MSB2D (   u64)    (((U8 *)&(u64))[5])

Most significant byte of 3rd rank of u64.

#define MSB2W (   u32)    (((U8 *)&(u32))[1])

Most significant byte of 3rd rank of u32.

Referenced by uhi_msc_scsi_read_10(), and uhi_msc_scsi_write_10().

#define MSB3 (   u32)    MSB3W(u32)

Most significant byte of 4th rank of u32.

Referenced by udi_msc_sbc_trans().

#define MSB3D (   u64)    (((U8 *)&(u64))[4])

Most significant byte of 4th rank of u64.

#define MSB3W (   u32)    (((U8 *)&(u32))[0])

Most significant byte of 4th rank of u32.

Referenced by uhi_msc_scsi_read_10(), and uhi_msc_scsi_write_10().

#define MSB4D (   u64)    (((U8 *)&(u64))[3])

Most significant byte of 5th rank of u64.

#define MSB5D (   u64)    (((U8 *)&(u64))[2])

Most significant byte of 6th rank of u64.

#define MSB6D (   u64)    (((U8 *)&(u64))[1])

Most significant byte of 7th rank of u64.

#define MSB7D (   u64)    (((U8 *)&(u64))[0])

Most significant byte of 8th rank of u64.

#define MSH (   u32)    (((U16 *)&(u32))[1])

Most significant half-word of u32.

#define MSH0 (   u64)    (((U16 *)&(u64))[3])

Most significant half-word of 1st rank of u64.

#define MSH1 (   u64)    (((U16 *)&(u64))[2])

Most significant half-word of 2nd rank of u64.

#define MSH2 (   u64)    (((U16 *)&(u64))[1])

Most significant half-word of 3rd rank of u64.

#define MSH3 (   u64)    (((U16 *)&(u64))[0])

Most significant half-word of 4th rank of u64.

#define MSW (   u64)    (((U32 *)&(u64))[1])

Most significant word of u64.

#define NO_INIT   __attribute__((section(".no_init")))
#define nop ( )    (__NOP())
#define OPTIMIZE_HIGH   __attribute__((optimize("s")))
#define PASS   0

Referenced by twi_set_speed(), and twihs_set_speed().

#define PGM_READ_BLOCK (   dst,
  src,
  len 
)    memcpy((dst), (src), (len))
#define PGM_READ_BYTE (   x)    *(x)
#define PGM_READ_DWORD (   x)    *(x)
#define PGM_READ_WORD (   x)    *(x)
#define RAMFUNC   __attribute__ ((section(".ramfunc")))
#define Rd_bitfield (   value,
  mask 
)    (Rd_bits( value, mask) >> ctz(mask))

Reads the bit-field of a value specified by a given bit-mask.

Parameters
valueValue to read a bit-field from.
maskBit-mask indicating the bit-field to read.
Returns
Read bit-field.

Referenced by at45dbx_read_byte(), at45dbx_read_byte_open(), at45dbx_write_byte(), at45dbx_write_byte_open(), at45dbx_write_close(), and at45dbx_write_sector_from_ram().

#define Rd_bits (   value,
  mask 
)    ((value) & (mask))

Reads the bits of a value specified by a given bit-mask.

Parameters
valueValue to read bits from.
maskBit-mask indicating bits to read.
Returns
Read bits.
#define Set_align (   lval,
  n,
  alg 
)    ( Wr_bits(lval, (n) - 1, alg) )

Sets alignment of the lvalue number lval to alg with respect to the n boundary.

Parameters
lvalInput/output lvalue.
nBoundary.
algAlignment.
Returns
New value of lval resulting from its alignment set to alg with respect to the n boundary.
#define Set_bits (   lvalue,
  mask 
)    ((lvalue) |= (mask))

Sets the bits of a C lvalue specified by a given bit-mask.

Parameters
lvalueC lvalue of which to set bits.
maskBit-mask indicating bits to set.
Returns
Resulting value with set bits.
#define SHORTENUM   __attribute__((packed))
#define Swap16 (   u16)
Value:
((U16)(((U16)(u16) >> 8) |\
((U16)(u16) << 8)))
uint16_t U16
16-bit unsigned integer.
Definition: compiler.h:259

Toggles the endianism of u16 (by swapping its bytes).

Parameters
u16U16 of which to toggle the endianism.
Returns
Value resulting from u16 with toggled endianism.
Note
More optimized if only used with values known at compile time.
#define swap16 (   u16)    Swap16(u16)

Toggles the endianism of u16 (by swapping its bytes).

Parameters
u16U16 of which to toggle the endianism.
Returns
Value resulting from u16 with toggled endianism.
Note
More optimized if only used with values unknown at compile time.
#define Swap32 (   u32)
Value:
((U32)(((U32)Swap16((U32)(u32) >> 16)) |\
((U32)Swap16((U32)(u32)) << 16)))
uint32_t U32
32-bit unsigned integer.
Definition: compiler.h:263
#define Swap16(u16)
Toggles the endianism of u16 (by swapping its bytes).
Definition: compiler.h:940

Toggles the endianism of u32 (by swapping its bytes).

Parameters
u32U32 of which to toggle the endianism.
Returns
Value resulting from u32 with toggled endianism.
Note
More optimized if only used with values known at compile time.
#define swap32 (   u32)    ((U32)__builtin_bswap32((U32)(u32)))

Toggles the endianism of u32 (by swapping its bytes).

Parameters
u32U32 of which to toggle the endianism.
Returns
Value resulting from u32 with toggled endianism.
Note
More optimized if only used with values unknown at compile time.
#define Swap64 (   u64)
Value:
((U64)(((U64)Swap32((U64)(u64) >> 32)) |\
((U64)Swap32((U64)(u64)) << 32)))
#define Swap32(u32)
Toggles the endianism of u32 (by swapping its bytes).
Definition: compiler.h:951
uint64_t U64
64-bit unsigned integer.
Definition: compiler.h:267

Toggles the endianism of u64 (by swapping its bytes).

Parameters
u64U64 of which to toggle the endianism.
Returns
Value resulting from u64 with toggled endianism.
Note
More optimized if only used with values known at compile time.
#define swap64 (   u64)    ((U64)__builtin_bswap64((U64)(u64)))

Toggles the endianism of u64 (by swapping its bytes).

Parameters
u64U64 of which to toggle the endianism.
Returns
Value resulting from u64 with toggled endianism.
Note
More optimized if only used with values unknown at compile time.
#define Test_align (   val,
 
)    (!Tst_bits( val, (n) - 1 ) )

Tests alignment of the number val with the n boundary.

Parameters
valInput value.
nBoundary.
Returns
1 if the number val is aligned with the n boundary, else 0.
#define Tgl_bits (   lvalue,
  mask 
)    ((lvalue) ^= (mask))

Toggles the bits of a C lvalue specified by a given bit-mask.

Parameters
lvalueC lvalue of which to toggle bits.
maskBit-mask indicating bits to toggle.
Returns
Resulting value with toggled bits.
#define true   1
#define Tst_bits (   value,
  mask 
)    (Rd_bits(value, mask) != 0)

Tests the bits of a value specified by a given bit-mask.

Parameters
valueValue of which to test bits.
maskBit-mask indicating bits to test.
Returns
1 if at least one of the tested bits is set, else 0.
#define unlikely (   exp)    (exp)

The expression exp is unlikely to be true.

#define UNUSED (   v)    (void)(v)

Marking v as a unused parameter or value.

Referenced by _transfer_done(), adc_ch_sanity_check(), anp_client_init(), anp_client_security_done_handler(), anp_client_write_notification_handler(), ap_task(), at25dfx_spi_deselect_device(), at25dfx_spi_select_device(), ble_device_config(), compute_address(), csc_prf_write_notification_handler(), flash_is_locked(), flash_write(), hid_prf_init(), i2s_disable(), i2s_enable(), ili9325_copy_pixels_from_screen(), ili93xx_copy_pixels_from_screen(), m2m_abort_job(), main_keyboard_led(), main_memories_trans_task(), main_vendor_bulk_in_received(), main_vendor_bulk_out_received(), main_vendor_int_in_received(), main_vendor_int_out_received(), main_vendor_iso_in_received(), main_vendor_iso_out_received(), mem_name(), mem_removal(), mem_unload(), memory_2_ram(), pas_client_init(), pmc_enable_backupmode(), pmc_enable_sleepmode(), portable_delay_cycles(), pxp_monitor_init(), ram_2_memory(), run_usb_cdc_test(), run_usb_mouse_test(), sd_mmc_is_write_protected(), sd_mmc_removal(), sd_mmc_spi_get_bus_width(), sd_mmc_spi_get_response_128(), sleepmgr_lock_mode(), sleepmgr_sleep(), sleepmgr_unlock_mode(), spi_deselect_device(), spi_disable_clock(), spi_enable_clock(), spi_master_setup_device(), stream_state(), stream_stop(), sysclk_get_peripheral_bus_hz(), task_led(), task_monitor(), TC0_Handler(), tc_find_mck_divisor(), time_info_disconnected_event_handler(), time_info_encryption_status_changed_handler(), time_info_pair_done_handler(), uart_close(), uart_config(), uart_open(), uart_rx_notify(), udd_sleep_mode(), udi_cdc_data_sent(), udi_cdc_line_coding_received(), udi_cdc_serial_state_msg_sent(), udi_hid_generic_report_in_sent(), udi_hid_generic_report_out_received(), udi_hid_kbd_report_sent(), udi_hid_mouse_report_sent(), udi_hid_multi_touch_report_in_sent(), udi_msc_cbw_received(), udi_msc_csw_sent(), udi_msc_data_sent(), udi_msc_trans_ack(), uhc_dev_get_string(), uhc_enumeration_step10(), uhc_enumeration_step12(), uhc_enumeration_step13(), uhc_enumeration_step14(), uhc_enumeration_step15(), uhc_enumeration_step6(), uhc_setup_request_callback(), uhd_disable(), uhd_ep_abort(), uhd_ep_free(), uhd_ep_run(), uhd_remote_wakeup(), uhd_setup_request(), uhd_sof_interrupt(), uhi_cdc_rx_received(), uhi_cdc_sof(), uhi_cdc_tx_send(), uhi_hid_mouse_report_reception(), uhi_msc_cbw_rst_stall(), uhi_msc_cbw_sent(), uhi_msc_csw_received(), uhi_msc_data_csw_rst_stall(), uhi_msc_data_transfered(), uhi_msc_enable_step2(), uhi_msc_enable_step5(), usart_serial_getchar(), usart_spi_deselect_device(), usart_spi_select_device(), and usart_spi_setup_device().

#define unused (   v)    do { (void)(v); } while(0)

Marking v as a unused parameter or value.

#define WEAK   __attribute__ ((weak))

This macro is used to test fatal errors.

The macro tests if the expression is false. If it is, a fatal error is detected and the application hangs up. If TEST_SUITE_DEFINE_ASSERT_MACRO is defined, a unit test version of the macro is used, to allow execution of further tests after a false expression.

Parameters
exprExpression to evaluate and supposed to be nonzero.
#define Wr_bitfield (   lvalue,
  mask,
  bitfield 
)    (Wr_bits(lvalue, mask, (U32)(bitfield) << ctz(mask)))

Writes the bit-field of a C lvalue specified by a given bit-mask.

Parameters
lvalueC lvalue to write a bit-field to.
maskBit-mask indicating the bit-field to write.
bitfieldBit-field to write.
Returns
Resulting value with written bit-field.
#define Wr_bits (   lvalue,
  mask,
  bits 
)
Value:
((lvalue) = ((lvalue) & ~(mask)) |\
((bits ) & (mask)))

Writes the bits of a C lvalue specified by a given bit-mask.

Parameters
lvalueC lvalue to write bits to.
maskBit-mask indicating bits to write.
bitsBits to write.
Returns
Resulting value with written bits.

typedef uint16_t be16_t
typedef uint32_t be32_t
typedef unsigned char Bool

Boolean.

typedef unsigned char bool

Boolean.

typedef U8 Byte

8-bit unsigned integer.

typedef float F32

32-bit floating-point number.

typedef double F64

64-bit floating-point number.

typedef uint32_t iram_size_t
typedef uint16_t le16_t
typedef uint32_t le32_t
typedef int16_t S16

16-bit signed integer.

typedef int32_t S32

32-bit signed integer.

typedef int64_t S64

64-bit signed integer.

typedef int8_t S8

8-bit signed integer.

Boolean status.

typedef U8 Status_t

8-bit-coded status.

typedef uint16_t U16

16-bit unsigned integer.

typedef uint32_t U32

32-bit unsigned integer.

typedef uint64_t U64

64-bit unsigned integer.

typedef uint8_t U8

8-bit unsigned integer.

static void convert_16_bit_to_byte_address ( uint16_t  value,
uint8_t *  data 
)
inlinestatic
static void convert_16_bit_to_byte_array ( uint16_t  value,
uint8_t *  data 
)
inlinestatic

Converts a 16-Bit value into a 2 Byte array.

Parameters
[in]value16-Bit value
[out]dataPointer to the 2 Byte array to be updated with 16-Bit value
static void convert_64_bit_to_byte_array ( uint64_t  value,
uint8_t *  data 
)
inlinestatic

Converts a 64-Bit value into a 8 Byte array.

Parameters
[in]value64-Bit value
[out]dataPointer to the 8 Byte array to be updated with 64-Bit value
static uint16_t convert_byte_array_to_16_bit ( uint8_t *  data)
inlinestatic
static uint32_t convert_byte_array_to_32_bit ( uint8_t *  data)
inlinestatic
static uint64_t convert_byte_array_to_64_bit ( uint8_t *  data)
inlinestatic

Converts a 8 Byte array into a 64-Bit value.

Parameters
dataSpecifies the pointer to the 8 Byte array
Returns
64-Bit value
static void convert_spec_16_bit_to_byte_array ( uint16_t  value,
uint8_t *  data 
)
inlinestatic