sys/linux/dev_ptp.txt

# Copyright 2019 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

include <uapi/asm/ioctl.h>
include <uapi/linux/fcntl.h>
include <uapi/linux/ptp_clock.h>

resource fd_ptp[fd]

type ptp_index int32

openat$ptp0(fd const[AT_FDCWD], file ptr[in, string["/dev/ptp0"]], flags flags[open_flags], mode const[0]) fd_ptp
openat$ptp1(fd const[AT_FDCWD], file ptr[in, string["/dev/ptp1"]], flags flags[open_flags], mode const[0]) fd_ptp

read$ptp(fd fd_ptp, data ptr[out, array[int8]], len bytesize[data])

ioctl$PTP_CLOCK_GETCAPS(fd fd_ptp, cmd const[PTP_CLOCK_GETCAPS], arg ptr[out, array[int8, PTP_CLOCK_CAPS_SIZE]])
ioctl$PTP_EXTTS_REQUEST(fd fd_ptp, cmd const[PTP_EXTTS_REQUEST], arg ptr[in, ptp_extts_request])
ioctl$PTP_EXTTS_REQUEST2(fd fd_ptp, cmd const[PTP_EXTTS_REQUEST2], arg ptr[in, ptp_extts_request])
ioctl$PTP_PEROUT_REQUEST(fd fd_ptp, cmd const[PTP_PEROUT_REQUEST], arg ptr[in, ptp_perout_request])
ioctl$PTP_PEROUT_REQUEST2(fd fd_ptp, cmd const[PTP_PEROUT_REQUEST2], arg ptr[in, ptp_perout_request])
ioctl$PTP_ENABLE_PPS(fd fd_ptp, cmd const[PTP_ENABLE_PPS], arg boolptr)
ioctl$PTP_SYS_OFFSET(fd fd_ptp, cmd const[PTP_SYS_OFFSET], arg ptr[in, ptp_sys_offset])
ioctl$PTP_SYS_OFFSET_PRECISE(fd fd_ptp, cmd const[PTP_SYS_OFFSET_PRECISE], arg ptr[out, array[int8, PTP_SYS_OFFSET_PRECISE_SIZE]])
ioctl$PTP_SYS_OFFSET_EXTENDED(fd fd_ptp, cmd const[PTP_SYS_OFFSET_EXTENDED], arg ptr[in, ptp_sys_offset_extended])
ioctl$PTP_PIN_GETFUNC(fd fd_ptp, cmd const[PTP_PIN_GETFUNC], arg ptr[in, ptp_pin_desc])
ioctl$PTP_PIN_GETFUNC2(fd fd_ptp, cmd const[PTP_PIN_GETFUNC2], arg ptr[in, ptp_pin_desc])
ioctl$PTP_PIN_SETFUNC(fd fd_ptp, cmd const[PTP_PIN_SETFUNC], arg ptr[in, ptp_pin_desc])
ioctl$PTP_PIN_SETFUNC2(fd fd_ptp, cmd const[PTP_PIN_SETFUNC2], arg ptr[in, ptp_pin_desc])

ptp_extts_request {
	index	ptp_index
	flags	flags[ptp_extts_request_flags, int32]
	rsv	array[const[0, int32], 2]
}

ptp_perout_request {
	start	ptp_clock_time
	period	ptp_clock_time
	index	ptp_index
	flags	bool32
	rsv	array[const[0, int32], 4]
}

ptp_sys_offset {
	n_samples	int32[0:PTP_MAX_SAMPLES]
	rsv		array[const[0, int32], 3]
	ts		array[const[0, int64], 102]
}

ptp_sys_offset_extended {
	n_samples	int32[0:PTP_MAX_SAMPLES]
	rsv		array[const[0, int32], 3]
	ts		array[const[0, int64], 150]
}

ptp_pin_desc {
	name	array[const[0, int8], 64]
	index	int32
	func	flags[ptp_pin_pf, int32]
	chan	ptp_index
	rsv	array[const[0, int32], 5]
}

ptp_clock_time {
	desc		int64
	nsec		int32
	reserved	const[0, int32]
}

ptp_extts_request_flags = PTP_ENABLE_FEATURE, PTP_RISING_EDGE, PTP_FALLING_EDGE, PTP_STRICT_FLAGS
ptp_pin_pf = PTP_PF_NONE, PTP_PF_EXTTS, PTP_PF_PEROUT, PTP_PF_PHYSYNC

define PTP_CLOCK_CAPS_SIZE	sizeof(struct ptp_clock_caps)
define PTP_SYS_OFFSET_PRECISE_SIZE	sizeof(struct ptp_sys_offset_precise)