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From: Rodolfo Giometti <giometti@linux.it>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	David Woodhouse <dwmw2@infradead.org>,
	Dave Jones <davej@redhat.com>, Sam Ravnborg <sam@ravnborg.org>,
	Greg KH <greg@kroah.com>, Randy Dunlap <randy.dunlap@oracle.com>,
	Kay Sievers <kay.sievers@vrfy.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>
Subject: LinuxPPS (RESUBMIT 7): the PPS Linux implementation.
Date: Wed, 20 Aug 2008 15:16:00 +0200	[thread overview]
Message-ID: <1219238170-5508-1-git-send-email-giometti@linux.it> (raw)
In-Reply-To: <>

This patch set adds the PPS support into Linux.

PPS means "pulse per second" and its API is specified by RFC 2783
(Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0).

The code has been tested with the NTPD program
(http://www.eecis.udel.edu/~mills/ntp/html/index.html) and several GPS
antennae.

Changelog

RESUBMIT 6 -> 7:

* A new line discipline has been added in order to leave untouched
  the serial ports code (as suggested by Alan).

* n_tty.c exports only GPL symbols.

* ioctl numbers fixed in order to avoid any conflicts.

* Last patch (0010-PPS-low-level-IRQ-timestamps-recording.patch) implements
  low level IRQs timestamps recording which mproves PPS precision but can
  be dropped for kernel inclusion! As suggested by Alan: "After that is
  sorted/merged we can come back to working out the best way to improve
  the IRQ and HARDPPS hacks."

Rodolfo

--

 b/Documentation/ABI/testing/sysfs-pps |   73 +++++++
 b/Documentation/ioctl-number.txt      |    2 
 b/Documentation/pps/Makefile          |   28 ++
 b/Documentation/pps/pps.txt           |  172 +++++++++++++++++
 b/Documentation/pps/ppsfind           |   17 +
 b/Documentation/pps/ppsldisc.c        |   46 ++++
 b/Documentation/pps/ppstest.c         |  151 +++++++++++++++
 b/Documentation/pps/timepps.h         |  195 +++++++++++++++++++
 b/Documentation/tty.txt               |    4 
 b/MAINTAINERS                         |    7 
 b/arch/x86/kernel/irq_32.c            |   17 +
 b/arch/x86/kernel/irq_64.c            |   21 +-
 b/drivers/Kconfig                     |    2 
 b/drivers/Makefile                    |    1 
 b/drivers/char/lp.c                   |   61 ++++++
 b/drivers/char/n_tty.c                |   54 +++--
 b/drivers/pps/Kconfig                 |   33 +++
 b/drivers/pps/Makefile                |    8 
 b/drivers/pps/clients/Kconfig         |   18 +
 b/drivers/pps/clients/Makefile        |    9 
 b/drivers/pps/clients/ktimer.c        |  124 ++++++++++++
 b/drivers/pps/clients/pps-ldisc.c     |  154 +++++++++++++++
 b/drivers/pps/kapi.c                  |  322 ++++++++++++++++++++++++++++++++
 b/drivers/pps/pps.c                   |  335 ++++++++++++++++++++++++++++++++++
 b/drivers/pps/sysfs.c                 |  104 ++++++++++
 b/drivers/serial/8250.c               |   13 +
 b/include/linux/Kbuild                |    1 
 b/include/linux/parport.h             |   22 ++
 b/include/linux/pps.h                 |  202 ++++++++++++++++++++
 b/include/linux/serial_core.h         |   10 -
 b/include/linux/tty.h                 |   16 +
 b/include/linux/tty_ldisc.h           |    8 
 drivers/pps/Kconfig                   |   14 +
 drivers/pps/Makefile                  |    1 
 drivers/pps/clients/Kconfig           |   17 +
 drivers/pps/clients/Makefile          |    1 
 include/linux/pps.h                   |    1 
 include/linux/serial_core.h           |    7 
 include/linux/tty.h                   |    3 
 39 files changed, 2247 insertions(+), 27 deletions(-)



             reply	other threads:[~2008-08-20 13:17 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-20 13:16 Rodolfo Giometti [this message]
2008-08-20 13:16 ` [PATCH 01/10] LinuxPPS core support Rodolfo Giometti
2008-08-20 13:16   ` [PATCH 02/10] PPS: userland header file for PPS API Rodolfo Giometti
2008-08-20 13:16     ` [PATCH 03/10] PPS: documentation programs and examples Rodolfo Giometti
2008-08-20 13:16       ` [PATCH 04/10] PPS: LinuxPPS clients support Rodolfo Giometti
2008-08-20 13:16         ` [PATCH 05/10] ldisc: new dcd_change() method for line disciplines Rodolfo Giometti
2008-08-20 13:16           ` [PATCH 06/10] ldisc n_tty: export all N_TTY ldisc methods Rodolfo Giometti
2008-08-20 13:16             ` [PATCH 07/10] tty: new PPS line discipline Rodolfo Giometti
2008-08-20 13:16               ` [PATCH 08/10] PPS: serial clients support Rodolfo Giometti
2008-08-20 13:16                 ` [PATCH 09/10] PPS: parallel port " Rodolfo Giometti
2008-08-20 13:16                   ` [PATCH 10/10] PPS: low level IRQ timestamps recording Rodolfo Giometti
2008-08-21 21:50 ` LinuxPPS (RESUBMIT 7): the PPS Linux implementation H. Peter Anvin
2008-08-21 23:20   ` Alan Cox
2008-08-21 23:44     ` H. Peter Anvin
2008-08-22  8:53   ` Rodolfo Giometti
  -- strict thread matches above, loose matches on Subject: below --
2008-09-10  7:52 Rodolfo Giometti
2008-10-02  7:41 Rodolfo Giometti

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