mirror-linux/tools
Vladimir Oltean 7570ebe041 testptp: add new options for perout phase and pulse width
Extend the example program for PTP ancillary functionality with the
ability to configure not only the periodic output's period (frequency),
but also the phase and duty cycle (pulse width) which were newly
introduced.

The ioctl level also needs to be updated to the new PTP_PEROUT_REQUEST2,
since the original PTP_PEROUT_REQUEST doesn't support this
functionality. For an in-tree testing program, not having explicit
backwards compatibility is fine, as it should always be tested with the
current kernel headers and sources.

Tested with an oscilloscope on the felix switch PHC:

echo '2 0' > /sys/class/ptp/ptp1/pins/switch_1588_dat0
./testptp -d /dev/ptp1 -p 1000000000 -w 100000000 -H 1000 -i 0

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20 18:04:59 -07:00
..
accounting
arch tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' 2020-07-03 08:11:16 -03:00
bootconfig tools/bootconfig: Add testcase for show-command and quotes test 2020-06-16 21:21:03 -04:00
bpf bpf: Fix cross build for CONFIG_DEBUG_INFO_BTF option 2020-07-14 10:20:31 -07:00
build tools/bpftool: Generalize BPF skeleton support and generate vmlinux.h 2020-06-22 17:01:48 -07:00
cgroup
debugging
edid
firewire
firmware
gpio
hv
iio
include net: remove compat_sys_{get,set}sockopt 2020-07-19 18:16:40 -07:00
io_uring
kvm/kvm_stat
laptop
leds
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-07-13 18:04:05 -07:00
memory-model
nfsd
objtool Peter Zijlstra says: 2020-06-28 10:16:15 -07:00
pci
pcmcia
perf net: remove compat_sys_{get,set}sockopt 2020-07-19 18:16:40 -07:00
power Merge branch 'acpica' 2020-06-10 17:27:28 +02:00
scripts
spi spi: tools: Make default_tx/rx and input_tx static 2020-06-11 16:27:24 +01:00
testing testptp: add new options for perout phase and pulse width 2020-07-20 18:04:59 -07:00
thermal/tmon
time
usb
virtio tools/virtio: Use tools/include/list.h instead of stubs 2020-06-22 12:34:22 -04:00
vm tools/vm/page_owner_sort.c: filter out unneeded line 2020-06-03 20:09:49 -07:00
wmi
Makefile bpf: Compile resolve_btfids tool at kernel compilation start 2020-07-13 10:42:02 -07:00