mirror of
https://github.com/apache/nuttx.git
synced 2026-09-28 10:03:51 +00:00
31eb339356
This patch introduces the foundational PTP (Precision Time Protocol) clock driver framework for NuttX, enabling precise time synchronization support based on IEEE 1588 standard. Key changes include: 1. New PTP clock driver infrastructure: - Added drivers/timers/ptp_clock.c implementing upper-half driver - Created include/nuttx/timers/ptp_clock.h with PTP clock interfaces - Implemented upper/lower half driver architecture for hardware abstraction 2. Core functionality: - Clock time get/set operations (gettime, settime) - Frequency adjustment support (adjtime, adjfine) - Phase adjustment capabilities - System-device cross-timestamping for precise synchronization 3. IOCTL commands: - PTP_CLOCK_SETTIME/GETTIME for time manipulation - PTP_CLOCK_GETRES for resolution queries - PTP_CLOCK_ADJTIME for time adjustment - PTP_CLOCK_GETCAPS for capability queries - PTP_SYS_OFFSET* for system offset measurements 4. Supporting structures: - struct ptp_lowerhalf_s: lower-half driver interface - struct ptp_clock_caps: clock capabilities descriptor - struct ptp_sys_offset: system time offset measurement - Added timex structures in include/sys/timex.h for ADJ_* operations 5. Build system integration: - Added CONFIG_PTP_CLOCK Kconfig option - Updated CMakeLists.txt and Make.defs - Added PTPCLK debug macros in include/debug.h This framework provides the base for PTP clock implementations, allowing hardware-specific drivers to register and provide precise time services through a standardized interface. Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com> |
||
|---|---|---|
| .. | ||
| android | ||
| arpa | ||
| crypto | ||
| cxx | ||
| net | ||
| netinet | ||
| netpacket | ||
| nuttx | ||
| ssp | ||
| sys | ||
| .gitignore | ||
| aio.h | ||
| alloca.h | ||
| assert.h | ||
| byteswap.h | ||
| ctype.h | ||
| debug.h | ||
| dirent.h | ||
| dlfcn.h | ||
| dsp.h | ||
| dspb16.h | ||
| elf.h | ||
| elf32.h | ||
| elf64.h | ||
| endian.h | ||
| err.h | ||
| errno.h | ||
| execinfo.h | ||
| fcntl.h | ||
| fixedmath.h | ||
| fnmatch.h | ||
| ftw.h | ||
| gcov.h | ||
| getopt.h | ||
| glob.h | ||
| grp.h | ||
| hex2bin.h | ||
| iconv.h | ||
| ifaddrs.h | ||
| imx_container.h | ||
| inttypes.h | ||
| iso646.h | ||
| langinfo.h | ||
| libgen.h | ||
| libintl.h | ||
| limits.h | ||
| locale.h | ||
| lzf.h | ||
| malloc.h | ||
| mqueue.h | ||
| netdb.h | ||
| nl_types.h | ||
| nxflat.h | ||
| obstack.h | ||
| poll.h | ||
| pthread.h | ||
| pty.h | ||
| pwd.h | ||
| regex.h | ||
| resolv.h | ||
| sched.h | ||
| search.h | ||
| semaphore.h | ||
| shadow.h | ||
| signal.h | ||
| spawn.h | ||
| stdbool.h | ||
| stddef.h | ||
| stdint.h | ||
| stdio.h | ||
| stdlib.h | ||
| stdnoreturn.h | ||
| string.h | ||
| strings.h | ||
| syscall.h | ||
| syslog.h | ||
| termios.h | ||
| threads.h | ||
| time.h | ||
| unistd.h | ||
| utime.h | ||
| uuid.h | ||
| wait.h | ||
| wchar.h | ||
| wctype.h | ||