mirror of
https://github.com/esp8266/Arduino.git
synced 2025-10-31 15:50:55 +03:00
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
#ifndef RFC1305_H
|
|
#define RFC1305_H
|
|
/*
|
|
* see https://www.eecis.udel.edu/~mills/database/rfc/rfc1305/rfc1305c.pdf
|
|
* https://tools.ietf.org/html/rfc1305
|
|
*/
|
|
|
|
#pragma pack(1)
|
|
struct sRFC1305 {
|
|
// NOTE all fields are BIG-ENDIAN so must be swapped on little endian machines
|
|
uint8_t MODE:3;
|
|
uint8_t VN:3;
|
|
uint8_t LI:2;
|
|
uint8_t stratum;
|
|
uint8_t poll;
|
|
uint8_t precision;
|
|
int16_t rootdelay_main;
|
|
uint16_t rootdelay_fraction;
|
|
int16_t rootdispersion_main;
|
|
uint16_t rootdispersion_fraction;
|
|
uint8_t identifier[4];
|
|
// 64 bit timestamps contain 32 bit whole part + 32 bit fractional part
|
|
uint32_t referencetimestamp_main;
|
|
uint32_t referencetimestamp_fraction;
|
|
uint32_t origintimestamp_main;
|
|
uint32_t origintimestamp_fraction;
|
|
uint32_t receivetimestamp_main;
|
|
uint32_t receivetimestamp_fraction;
|
|
uint32_t transmittimestamp_main;
|
|
uint32_t transmittimestamp_fraction;
|
|
};
|
|
#pragma pack(0)
|
|
|
|
#define LI_NOWARNING 0
|
|
#define LI_61_SEC 1
|
|
#define LI_59_SEC 2
|
|
#define LI_ALARM 3
|
|
|
|
#define VERN 4
|
|
|
|
#define MODE_SYMMETRIC_ACTIVE 1
|
|
#define MODE_SYMMETRIC_PASSIVE 2
|
|
#define MODE_CLIENT 3
|
|
#define MODE_SERVER 4
|
|
#define MODE_BROADCAST 5
|
|
|
|
#define ENDIAN_SWAP_32(l) ((l>>24) |((l>>16)<<8)&0xff00 | ((l>>8)<<16)&0xff0000 | (l << 24))
|
|
#define ENDIAN_SWAP_16(l) ((l>>8) | (l << 8))
|
|
#endif
|
|
|