tinyusb
common.h File Reference
#include "primitive_types.h"
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include "tusb_option.h"
#include "compiler/compiler.h"
#include "assertion.h"
#include "binary.h"
#include "tusb_errors.h"
#include "tusb_types.h"
#include "std_descriptors.h"
#include "std_request.h"
#include "osal/osal.h"

Go to the source code of this file.

Macros

#define STRING_(x)   #x
 stringify without expand
 
#define XSTRING_(x)   STRING_(x)
 expand then stringify
 
#define STRING_CONCAT_(a, b)   a##b
 concat without expand
 
#define XSTRING_CONCAT_(a, b)   STRING_CONCAT_(a, b)
 expand then concat
 
#define STRING_(x)   #x
 stringify without expand
 
#define XSTRING_(x)   STRING_(x)
 expand then stringify
 
#define STRING_CONCAT_(a, b)   a##b
 concat without expand
 
#define XSTRING_CONCAT_(a, b)   STRING_CONCAT_(a, b)
 expand then concat
 
#define MAX_OF(a, b)   ( (a) > (b) ? (a) : (b) )
 
#define MIN_OF(a, b)   ( (a) < (b) ? (a) : (b) )
 
#define U16_HIGH_U8(u16)   ((uint8_t) (((u16) >> 8) & 0x00ff))
 
#define U16_LOW_U8(u16)   ((uint8_t) ((u16) & 0x00ff))
 
#define U16_TO_U8S_BE(u16)   U16_HIGH_U8(u16), U16_LOW_U8(u16)
 
#define U16_TO_U8S_LE(u16)   U16_LOW_U8(u16), U16_HIGH_U8(u16)
 
#define U32_B1_U8(u32)   ((uint8_t) (((u32) >> 24) & 0x000000ff))
 
#define U32_B2_U8(u32)   ((uint8_t) (((u32) >> 16) & 0x000000ff))
 
#define U32_B3_U8(u32)   ((uint8_t) (((u32) >> 8) & 0x000000ff))
 
#define U32_B4_U8(u32)   ((uint8_t) ((u32) & 0x000000ff))
 
#define U32_TO_U8S_BE(u32)   U32_B1_U8(u32), U32_B2_U8(u32), U32_B3_U8(u32), U32_B4_U8(u32)
 
#define U32_TO_U8S_LE(u32)   U32_B4_U8(u32), U32_B3_U8(u32), U32_B2_U8(u32), U32_B1_U8(u32)
 
#define ENDIAN_BE(u32)   (uint32_t) ( (((u32) & 0xFF) << 24) | (((u32) & 0xFF00) << 8) | (((u32) >> 8) & 0xFF00) | (((u32) >> 24) & 0xFF) )
 
#define ENDIAN_BE16(le16)   ((uint16_t) ((U16_LOW_U8(le16) << 8) | U16_HIGH_U8(le16)) )
 
#define __n2be_16(u16)   ((uint16_t) ((U16_LOW_U8(u16) << 8) | U16_HIGH_U8(u16)) )
 
#define __be2n_16(u16)   __n2be_16(u16)
 
#define memclr_(buffer, size)   memset((buffer), 0, (size))
 

Functions

static uint8_t const * descriptor_next (uint8_t const p_desc[]) ATTR_ALWAYS_INLINE ATTR_PURE
 
static uint8_t descriptor_typeof (uint8_t const p_desc[]) ATTR_ALWAYS_INLINE ATTR_PURE
 
static uint32_t u32_from_u8 (uint8_t b1, uint8_t b2, uint8_t b3, uint8_t b4) ATTR_ALWAYS_INLINE ATTR_CONST
 form an uint32_t from 4 x uint8_t
 
static uint8_t u16_high_u8 (uint16_t u16) ATTR_CONST ATTR_ALWAYS_INLINE
 
static uint8_t u16_low_u8 (uint16_t u16) ATTR_CONST ATTR_ALWAYS_INLINE
 
static uint16_t u16_le2be (uint16_t u16) ATTR_CONST ATTR_ALWAYS_INLINE
 
static uint8_t min8_of (uint8_t x, uint8_t y) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint16_t min16_of (uint16_t x, uint16_t y) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t min32_of (uint32_t x, uint32_t y) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t max32_of (uint32_t x, uint32_t y) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint16_t max16_of (uint16_t x, uint16_t y) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t align32 (uint32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t align16 (uint32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t align_n (uint32_t alignment, uint32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t align4k (uint32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t offset4k (uint32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint32_t abs_of (int32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 
static bool is_in_range (uint32_t lower, uint32_t value, uint32_t upper) ATTR_ALWAYS_INLINE ATTR_CONST
 inclusive range checking
 
static bool is_in_range_exclusive (uint32_t lower, uint32_t value, uint32_t upper) ATTR_ALWAYS_INLINE ATTR_CONST
 exclusive range checking
 
static uint8_t log2_of (uint32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 
static uint8_t cardinality_of (uint32_t value) ATTR_ALWAYS_INLINE ATTR_CONST
 

Detailed Description

Author
hathach (tinyusb.org)

LICENSE

Software License Agreement (BSD License)

Copyright (c) 2013, hathach (tinyusb.org) 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. Neither the name of the copyright holders nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''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 COPYRIGHT HOLDER 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 tinyusb stack.