Commit graph

15 commits

Author SHA1 Message Date
raiden00pl
30c5040547 drivers/timers, sched/clock: use file_get/file_put
fs_getfilep()/fs_putfilep() were renamed to file_get()/file_put().

The PTP clock paths still used the old names, breaking the PTP_CLOCK build.

Signed-off-by: raiden00pl <raiden00@railab.me>
2026-07-11 17:22:07 -04:00
Xiang Xiao
9ff99c6d0f !nuttx: drop redundant casts on tv_sec/tv_nsec and fix printf formats
Now that time_t is unconditionally 64-bit (signed int64_t) and the
struct timespec fields tv_sec / tv_nsec are wide enough on their own,
the explicit (uint64_t)/(int64_t)/(int) casts that used to guard the
multiplications and subtractions in *_us / *_ms / *_ns helpers are no
longer needed.  Drop them to keep the timekeeping math readable and
consistent with the previous sclock_t/time_t cleanup.

In the same spirit, this commit also:

* Normalises the printf-style format specifiers and casts used to
  print tv_sec / tv_nsec / tv_usec values across arch/, drivers/,
  fs/, sched/ and libs/.  The prior code was a mix of
  "%d"/"%u"/"%ld"/"%lu"/"%lld"/PRIu32/PRIu64 with matching
  (int)/(unsigned long)/(long long)/PRIu* casts; some formats
  truncated time_t on 32-bit hosts, others mismatched signedness or
  width.  Replace all such cases with the portable POSIX-recommended
  forms:

    - tv_sec  (time_t,       signed, impl-defined width) -> %jd  + (intmax_t)
    - tv_nsec (long,         signed)                     -> %ld  (no cast)
    - tv_usec (suseconds_t / long)                       -> %ld  (no cast)

  Add #include <stdint.h> where required.

* Drops a few stale `(FAR const time_t *)&ts.tv_sec` casts and
  related `(FAR struct tm *)` / `(const time_t *)` casts in
  gmtime_r() / localtime_r() / gmtime() callers; ts.tv_sec is plain
  time_t now and the casts only obscured the type.

* Fixes one overflow in fs/procfs/fs_procfscritmon.c where
  all_time.tv_sec * 1000000 could overflow on 32-bit time_t before
  being multiplied again; cast to uint64_t at the start.

No behavioural change.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2026-05-19 16:21:28 +08:00
Piyush Patle
0dccc8ba21 include/debug.h: Move to include/nuttx/debug.h
debug.h is a NuttX-specific, non-POSIX header. Placing it in the
top-level include/ directory creates naming conflicts with external
projects that define their own debug.h.
This commit moves the canonical header to include/nuttx/debug.h,
following the NuttX convention for non-POSIX/non-standard headers,
and updates all in-tree references.

A backward-compatibility shim is left at include/debug.h that
emits a deprecation #warning and re-includes <nuttx/debug.h>,
allowing out-of-tree code to continue building while migrating.

Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
2026-04-07 07:50:06 -03:00
dongjiuzhu1
752a405f86 sched/clock: support using CLOCKFD to call clock_adjtime
This patch implements clock_adjtime() with CLOCKFD support, enabling
precise time and frequency adjustments for PTP clocks through the
standard POSIX clock API.

Key changes include:

1. New clock_adjtime() system call:
   - Added sched/clock/clock_adjtime.c implementation
   - Provides POSIX-compliant time adjustment interface
   - Supports both standard clocks and CLOCKFD-based dynamic clocks
   - Added CONFIG_CLOCK_ADJTIME Kconfig option

2. CLOCKFD support in clock_adjtime():
   - Detects CLOCKFD-encoded clockids via CLOCKFD_TO_FD() check
   - Extracts file descriptor and validates through fs_getfilep()
   - Issues PTP_CLOCK_ADJTIME ioctl to underlying PTP clock device
   - Returns clock status and adjustment results via struct timex

3. Enhanced struct timex support:
   - Extended include/sys/timex.h with additional ADJ_* flags
   - Added ADJ_OFFSET, ADJ_FREQUENCY, ADJ_MAXERROR, ADJ_ESTERROR
   - Added ADJ_STATUS, ADJ_TIMECONST, ADJ_TAI, ADJ_SETOFFSET
   - Added ADJ_MICRO, ADJ_NANO for time unit selection
   - Added STA_* status flags for clock state reporting

4. Clock operations supported:
   - ADJ_SETOFFSET: Apply time offset adjustment
   - ADJ_FREQUENCY: Adjust clock frequency (PPM)
   - ADJ_MAXERROR: Set maximum error estimate
   - ADJ_ESTERROR: Set estimated error
   - ADJ_STATUS: Modify clock status bits
   - ADJ_NANO: Use nanosecond resolution
   - ADJ_SETOFFSET: Set absolute time offset

5. API declarations:
   - Added clock_adjtime() prototype in include/nuttx/clock.h
   - Enabled by CONFIG_CLOCK_ADJTIME configuration
   - Compatible with Linux clock_adjtime() interface

Usage example:
  int fd = open("/dev/ptp0", O_RDWR);
  struct timex tx = {0};
  tx.modes = ADJ_FREQUENCY;
  tx.freq = 10000000;  /* Adjust frequency by 10 PPM */
  clock_adjtime(CLOCKFD(fd), &tx);
  close(fd);

This completes the PTP clock framework's POSIX clock API integration,
providing comprehensive time control capabilities for precision timing
applications including PTP synchronization daemons (ptp4l, timemaster).

Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
2025-12-30 10:22:09 -03:00
wangchengdong
a49a5fd27f sched/clock: Replace spinlock/sched_lock with spin_lock_irqsave_nopreempt
Replace the spinlock/sched_lock pair in the sched clock module with
    spin_lock_irqsave_nopreempt() to improve code clarity and consistency.

Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
2025-10-31 15:02:56 +08:00
ouyangxiangzhen
efe2af643f sched/wdog: Replace periodcial timer with the wd_start_next.
This commit replaced periodical timer with the wd_start_next to improve the timing accuracy.

Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
2025-06-10 11:02:45 -03:00
Xiang Xiao
45422e2ad9 Revert "No need to call sched_lock explicitly after call spin_lock_irqsave, since it will be called in func spin_lock_irqsave."
This reverts commit 8f3a2a6f76.
2025-02-13 14:15:43 +08:00
Michal Lenc
0ae633cc08 clock/clock_adjtime.c: fix compile errors
The missing <nuttx/spinlock.h> header caused following compile errors:

CC:  clock/clock_adjtime.c clock/clock_adjtime.c: In function 'adjtime_wdog_callback':
clock/clock_adjtime.c:67:11: error: implicit declaration of function 'spin_lock_irqsave' [-Wimplicit-function-declaration]
   67 |   flags = spin_lock_irqsave(&g_adjtime_lock);
      |           ^~~~~~~~~~~~~~~~~
clock/clock_adjtime.c:78:3: error: implicit declaration of function 'spin_unlock_irqrestore' [-Wimplicit-function-declaration]
   78 |   spin_unlock_irqrestore(&g_adjtime_lock, flags);

Signed-off-by: Michal Lenc <michallenc@seznam.cz>
2025-02-06 09:22:44 +08:00
wangzhi16
8f3a2a6f76 No need to call sched_lock explicitly after call spin_lock_irqsave, since it will be called in func spin_lock_irqsave.
Signed-off-by: wangzhi16 <wangzhi16@xiaomi.com>
2025-01-24 17:27:50 +08:00
hujun5
19bca74c7c clock_adjtime: use small lock to protect g_adjtime_ppb g_adjtime_wdog
reason:
We would like to replace the critical section with a small lock.

Signed-off-by: hujun5 <hujun5@xiaomi.com>
2025-01-12 22:07:15 +08:00
Alin Jerpelea
eb9030c891 sched: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-09-12 01:10:14 +08:00
Petteri Aimonen
1825f9534c adjtime: Rewrite implementation to work for RTC and tickless kernel
Previous adjtime() implementation was limited to adjusting system
timer tick period. This commit reimplements the internals to use
a kernel watchdog timer. Platform-independent part of the code now
works also for adjusting hires RTC and tickless timer rate.

User code facing API is unchanged. Architecture code API has changed:
up_adj_timer_period() is replaced by up_adjtime().

Other improvements:

- Support query of remaining adjustment by passing NULL to first
  argument of adjtime(). This matches Linux behavior.

- Improve resolution available for architecture driver, previously
  limited to 1 microsecond per tick. Now 1 nanosecond per second.
2023-11-14 19:47:40 -08:00
chao an
87d6084f31 sched: fix the minor style issue
and remove the unused return value

Signed-off-by: chao an <anchao@xiaomi.com>
2023-10-25 15:46:45 +08:00
Petteri Aimonen
0611f39cdc adjtime(): Improve configuration and math
1) Previously adjustments less than 1 microsecond per tick would be
   completely ignored. Now they are applied over a shorter period at
   a rate of 1 us per tick.

2) Previously CLOCK_ADJTIME_PERIOD was in units of 1/100th of second.
   Change to milliseconds to be more generally useful unit.
   Change setting name to CLOCK_ADJTIME_PERIOD_MS to make the unit change
   easier to notice.

3) Previously CLOCK_ADJTIME_SLEWLIMIT was in percentage.
   Most clock crystals have better accuracy than 1%, so the minimum slew
   rate was excessive. Change to CLOCK_ADJTIME_SLEWLIMIT_PPM with setting
   value in parts per million.

4) No need to use floating point math in clock_adjtime.c.
2023-09-29 13:03:10 +08:00
Michal Lenc
360e938fa6 sched: add support for adjtime() interface
This commit adds Linux like adjtime() interface that is used to correct
the system time clock if it varies from real value. The adjustment is
done by slight adjustment of clock period and therefore the adjustment
is without time jumps (both forward and backwards)

The implementation is enabled by CONFIG_CLOCK_ADJTIME and separated from
CONFIG_CLOCK_TIMEKEEPING functions. Options CONFIG_CLOCK_ADJTIME_SLEWLIMIT
and CONFIG_CLOCK_ADJTIME_PERIOD can be used to control the adjustment
speed.

Interfaces up_get_timer_period() and up_adj_timer_period() has to be
defined by architecture level support.

This is not a POSIX interface but derives from 4.3BSD, System V.
It is also supported for Linux compatibility.

Signed-off-by: Michal Lenc <michallenc@seznam.cz>
2023-04-25 14:37:50 -03:00