File content as of revision 2:540f6e142d59:

/*********************************************************************
PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
See LICENSE and COPYING for usage.

*********************************************************************/
#ifndef _INCLUDE_PICO_CONST
#define _INCLUDE_PICO_CONST
/* Included from pico_config.h */
/** Endian-dependant constants **/

extern volatile unsigned long pico_tick;

#ifdef PICO_BIGENDIAN

# define PICO_IDETH_IPV4 0x0800
# define PICO_IDETH_ARP 0x0806
# define PICO_IDETH_IPV6 0x86DD

# define PICO_ARP_REQUEST 0x0001
# define PICO_ARP_REPLY   0x0002
# define PICO_ARP_HTYPE_ETH 0x0001

#define short_be(x) (x)
#define long_be(x) (x)

static inline uint16_t short_from(void *_p)
{
  unsigned char *p = (unsigned char *)_p;
  uint16_t r, p0, p1;
  p0 = p[0];
  p1 = p[1];
  r = (p0 << 8) + p1;
  return r;
}

static inline uint32_t long_from(void *_p)
{
  unsigned char *p = (unsigned char *)_p;
  uint32_t r, p0, p1, p2, p3;
  p0 = p[0];
  p1 = p[1];
  p2 = p[2];
  p3 = p[3];
  r = (p0 << 24) + (p1 << 16) + (p2 << 8) + p3;
  return r;
}

#else

static inline uint16_t short_from(void *_p)
{
  unsigned char *p = (unsigned char *)_p;
  uint16_t r, p0, p1;
  p0 = p[0];
  p1 = p[1];
  r = (p1 << 8) + p0;
  return r;
}

static inline uint32_t long_from(void *_p)
{
  unsigned char *p = (unsigned char *)_p;
  uint32_t r, p0, p1, p2, p3;
  p0 = p[0];
  p1 = p[1];
  p2 = p[2];
  p3 = p[3];
  r = (p3 << 24) + (p2 << 16) + (p1 << 8) + p0;
  return r;
}


# define PICO_IDETH_IPV4 0x0008
# define PICO_IDETH_ARP 0x0608
# define PICO_IDETH_IPV6 0xDD86

# define PICO_ARP_REQUEST 0x0100
# define PICO_ARP_REPLY   0x0200
# define PICO_ARP_HTYPE_ETH 0x0100

static inline uint16_t short_be(uint16_t le)
{
  return ((le & 0xFF) << 8) | ((le >> 8) & 0xFF);
}

static inline uint32_t long_be(uint32_t le)
{
  uint8_t *b = (uint8_t *)&le;
  uint32_t be = 0;
  uint32_t b0, b1, b2;
  b0 = b[0];
  b1 = b[1];
  b2 = b[2];
  be = b[3] + (b2 << 8) + (b1 << 16) + (b0 << 24);
  return be;
}
#endif


/* Add well-known host numbers here. (bigendian constants only beyond this point) */
#define PICO_IP4_ANY (0x00000000U)
#define PICO_IP4_BCAST (0xffffffffU)

/* defined in modules/pico_ipv6.c */
#ifdef PICO_SUPPORT_IPV6
extern const uint8_t PICO_IPV6_ANY[PICO_SIZE_IP6];
#endif

static inline uint32_t pico_hash(char *name)
{
  unsigned long hash = 5381;
  int c;
  while ((c = *name++))
    hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
  return hash;
}

/* Debug */
//#define PICO_SUPPORT_DEBUG_MEMORY
//#define PICO_SUPPORT_DEBUG_TOOLS
#endif