mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
d3f1cbd29f
Add adjust_phase to ptp_clock_caps capability to allow user to query if a PHC driver supports adjust phase with ioctl PTP_CLOCK_GETCAPS command. Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com> Reviewed-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
209 lines
6.6 KiB
C
209 lines
6.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
|
|
/*
|
|
* PTP 1588 clock support - user space interface
|
|
*
|
|
* Copyright (C) 2010 OMICRON electronics GmbH
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef _PTP_CLOCK_H_
|
|
#define _PTP_CLOCK_H_
|
|
|
|
#include <linux/ioctl.h>
|
|
#include <linux/types.h>
|
|
|
|
/*
|
|
* Bits of the ptp_extts_request.flags field:
|
|
*/
|
|
#define PTP_ENABLE_FEATURE (1<<0)
|
|
#define PTP_RISING_EDGE (1<<1)
|
|
#define PTP_FALLING_EDGE (1<<2)
|
|
#define PTP_STRICT_FLAGS (1<<3)
|
|
#define PTP_EXTTS_EDGES (PTP_RISING_EDGE | PTP_FALLING_EDGE)
|
|
|
|
/*
|
|
* flag fields valid for the new PTP_EXTTS_REQUEST2 ioctl.
|
|
*/
|
|
#define PTP_EXTTS_VALID_FLAGS (PTP_ENABLE_FEATURE | \
|
|
PTP_RISING_EDGE | \
|
|
PTP_FALLING_EDGE | \
|
|
PTP_STRICT_FLAGS)
|
|
|
|
/*
|
|
* flag fields valid for the original PTP_EXTTS_REQUEST ioctl.
|
|
* DO NOT ADD NEW FLAGS HERE.
|
|
*/
|
|
#define PTP_EXTTS_V1_VALID_FLAGS (PTP_ENABLE_FEATURE | \
|
|
PTP_RISING_EDGE | \
|
|
PTP_FALLING_EDGE)
|
|
|
|
/*
|
|
* Bits of the ptp_perout_request.flags field:
|
|
*/
|
|
#define PTP_PEROUT_ONE_SHOT (1<<0)
|
|
|
|
/*
|
|
* flag fields valid for the new PTP_PEROUT_REQUEST2 ioctl.
|
|
*/
|
|
#define PTP_PEROUT_VALID_FLAGS (PTP_PEROUT_ONE_SHOT)
|
|
|
|
/*
|
|
* No flags are valid for the original PTP_PEROUT_REQUEST ioctl
|
|
*/
|
|
#define PTP_PEROUT_V1_VALID_FLAGS (0)
|
|
|
|
/*
|
|
* struct ptp_clock_time - represents a time value
|
|
*
|
|
* The sign of the seconds field applies to the whole value. The
|
|
* nanoseconds field is always unsigned. The reserved field is
|
|
* included for sub-nanosecond resolution, should the demand for
|
|
* this ever appear.
|
|
*
|
|
*/
|
|
struct ptp_clock_time {
|
|
__s64 sec; /* seconds */
|
|
__u32 nsec; /* nanoseconds */
|
|
__u32 reserved;
|
|
};
|
|
|
|
struct ptp_clock_caps {
|
|
int max_adj; /* Maximum frequency adjustment in parts per billon. */
|
|
int n_alarm; /* Number of programmable alarms. */
|
|
int n_ext_ts; /* Number of external time stamp channels. */
|
|
int n_per_out; /* Number of programmable periodic signals. */
|
|
int pps; /* Whether the clock supports a PPS callback. */
|
|
int n_pins; /* Number of input/output pins. */
|
|
/* Whether the clock supports precise system-device cross timestamps */
|
|
int cross_timestamping;
|
|
/* Whether the clock supports adjust phase */
|
|
int adjust_phase;
|
|
int rsv[12]; /* Reserved for future use. */
|
|
};
|
|
|
|
struct ptp_extts_request {
|
|
unsigned int index; /* Which channel to configure. */
|
|
unsigned int flags; /* Bit field for PTP_xxx flags. */
|
|
unsigned int rsv[2]; /* Reserved for future use. */
|
|
};
|
|
|
|
struct ptp_perout_request {
|
|
struct ptp_clock_time start; /* Absolute start time. */
|
|
struct ptp_clock_time period; /* Desired period, zero means disable. */
|
|
unsigned int index; /* Which channel to configure. */
|
|
unsigned int flags;
|
|
unsigned int rsv[4]; /* Reserved for future use. */
|
|
};
|
|
|
|
#define PTP_MAX_SAMPLES 25 /* Maximum allowed offset measurement samples. */
|
|
|
|
struct ptp_sys_offset {
|
|
unsigned int n_samples; /* Desired number of measurements. */
|
|
unsigned int rsv[3]; /* Reserved for future use. */
|
|
/*
|
|
* Array of interleaved system/phc time stamps. The kernel
|
|
* will provide 2*n_samples + 1 time stamps, with the last
|
|
* one as a system time stamp.
|
|
*/
|
|
struct ptp_clock_time ts[2 * PTP_MAX_SAMPLES + 1];
|
|
};
|
|
|
|
struct ptp_sys_offset_extended {
|
|
unsigned int n_samples; /* Desired number of measurements. */
|
|
unsigned int rsv[3]; /* Reserved for future use. */
|
|
/*
|
|
* Array of [system, phc, system] time stamps. The kernel will provide
|
|
* 3*n_samples time stamps.
|
|
*/
|
|
struct ptp_clock_time ts[PTP_MAX_SAMPLES][3];
|
|
};
|
|
|
|
struct ptp_sys_offset_precise {
|
|
struct ptp_clock_time device;
|
|
struct ptp_clock_time sys_realtime;
|
|
struct ptp_clock_time sys_monoraw;
|
|
unsigned int rsv[4]; /* Reserved for future use. */
|
|
};
|
|
|
|
enum ptp_pin_function {
|
|
PTP_PF_NONE,
|
|
PTP_PF_EXTTS,
|
|
PTP_PF_PEROUT,
|
|
PTP_PF_PHYSYNC,
|
|
};
|
|
|
|
struct ptp_pin_desc {
|
|
/*
|
|
* Hardware specific human readable pin name. This field is
|
|
* set by the kernel during the PTP_PIN_GETFUNC ioctl and is
|
|
* ignored for the PTP_PIN_SETFUNC ioctl.
|
|
*/
|
|
char name[64];
|
|
/*
|
|
* Pin index in the range of zero to ptp_clock_caps.n_pins - 1.
|
|
*/
|
|
unsigned int index;
|
|
/*
|
|
* Which of the PTP_PF_xxx functions to use on this pin.
|
|
*/
|
|
unsigned int func;
|
|
/*
|
|
* The specific channel to use for this function.
|
|
* This corresponds to the 'index' field of the
|
|
* PTP_EXTTS_REQUEST and PTP_PEROUT_REQUEST ioctls.
|
|
*/
|
|
unsigned int chan;
|
|
/*
|
|
* Reserved for future use.
|
|
*/
|
|
unsigned int rsv[5];
|
|
};
|
|
|
|
#define PTP_CLK_MAGIC '='
|
|
|
|
#define PTP_CLOCK_GETCAPS _IOR(PTP_CLK_MAGIC, 1, struct ptp_clock_caps)
|
|
#define PTP_EXTTS_REQUEST _IOW(PTP_CLK_MAGIC, 2, struct ptp_extts_request)
|
|
#define PTP_PEROUT_REQUEST _IOW(PTP_CLK_MAGIC, 3, struct ptp_perout_request)
|
|
#define PTP_ENABLE_PPS _IOW(PTP_CLK_MAGIC, 4, int)
|
|
#define PTP_SYS_OFFSET _IOW(PTP_CLK_MAGIC, 5, struct ptp_sys_offset)
|
|
#define PTP_PIN_GETFUNC _IOWR(PTP_CLK_MAGIC, 6, struct ptp_pin_desc)
|
|
#define PTP_PIN_SETFUNC _IOW(PTP_CLK_MAGIC, 7, struct ptp_pin_desc)
|
|
#define PTP_SYS_OFFSET_PRECISE \
|
|
_IOWR(PTP_CLK_MAGIC, 8, struct ptp_sys_offset_precise)
|
|
#define PTP_SYS_OFFSET_EXTENDED \
|
|
_IOWR(PTP_CLK_MAGIC, 9, struct ptp_sys_offset_extended)
|
|
|
|
#define PTP_CLOCK_GETCAPS2 _IOR(PTP_CLK_MAGIC, 10, struct ptp_clock_caps)
|
|
#define PTP_EXTTS_REQUEST2 _IOW(PTP_CLK_MAGIC, 11, struct ptp_extts_request)
|
|
#define PTP_PEROUT_REQUEST2 _IOW(PTP_CLK_MAGIC, 12, struct ptp_perout_request)
|
|
#define PTP_ENABLE_PPS2 _IOW(PTP_CLK_MAGIC, 13, int)
|
|
#define PTP_SYS_OFFSET2 _IOW(PTP_CLK_MAGIC, 14, struct ptp_sys_offset)
|
|
#define PTP_PIN_GETFUNC2 _IOWR(PTP_CLK_MAGIC, 15, struct ptp_pin_desc)
|
|
#define PTP_PIN_SETFUNC2 _IOW(PTP_CLK_MAGIC, 16, struct ptp_pin_desc)
|
|
#define PTP_SYS_OFFSET_PRECISE2 \
|
|
_IOWR(PTP_CLK_MAGIC, 17, struct ptp_sys_offset_precise)
|
|
#define PTP_SYS_OFFSET_EXTENDED2 \
|
|
_IOWR(PTP_CLK_MAGIC, 18, struct ptp_sys_offset_extended)
|
|
|
|
struct ptp_extts_event {
|
|
struct ptp_clock_time t; /* Time event occured. */
|
|
unsigned int index; /* Which channel produced the event. */
|
|
unsigned int flags; /* Reserved for future use. */
|
|
unsigned int rsv[2]; /* Reserved for future use. */
|
|
};
|
|
|
|
#endif
|