* + pps-userland-header-file-for-pps-api.patch added to -mm tree
@ 2008-03-20 20:03 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2008-03-20 20:03 UTC (permalink / raw)
To: mm-commits; +Cc: giometti
The patch titled
PPS: userland header file for PPS API
has been added to the -mm tree. Its filename is
pps-userland-header-file-for-pps-api.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: PPS: userland header file for PPS API
From: Rodolfo Giometti <giometti@linux.it>
This patch adds into the PPS's documentation directory a possible
implementation of the PPS API (RFC 2783) by using the LinuxPPS's char devices.
This file is not just an example but it can be used into real systems. :)
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
Documentation/pps/timepps.h | 195 ++++++++++++++++++++++++++++++++++
1 file changed, 195 insertions(+)
diff -puN /dev/null Documentation/pps/timepps.h
--- /dev/null
+++ a/Documentation/pps/timepps.h
@@ -0,0 +1,195 @@
+/*
+ * timepps.h -- PPS API main header
+ *
+ * Copyright (C) 2005-2007 Rodolfo Giometti <giometti@linux.it>
+ *
+ * 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 _SYS_TIMEPPS_H_
+#define _SYS_TIMEPPS_H_
+
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <errno.h>
+#include <linux/pps.h>
+
+#define LINUXPPS 1 /* signal we are using LinuxPPS */
+
+/*
+ * New data structures
+ */
+
+struct ntp_fp {
+ unsigned int integral;
+ unsigned int fractional;
+};
+
+union pps_timeu {
+ struct timespec tspec;
+ struct ntp_fp ntpfp;
+ unsigned long longpad[3];
+};
+
+struct pps_info {
+ unsigned long assert_sequence; /* seq. num. of assert event */
+ unsigned long clear_sequence; /* seq. num. of clear event */
+ union pps_timeu assert_tu; /* time of assert event */
+ union pps_timeu clear_tu; /* time of clear event */
+ int current_mode; /* current mode bits */
+};
+
+struct pps_params {
+ int api_version; /* API version # */
+ int mode; /* mode bits */
+ union pps_timeu assert_off_tu; /* offset compensation for assert */
+ union pps_timeu clear_off_tu; /* offset compensation for clear */
+};
+
+typedef int pps_handle_t; /* represents a PPS source */
+typedef unsigned long pps_seq_t; /* sequence number */
+typedef struct ntp_fp ntp_fp_t; /* NTP-compatible time stamp */
+typedef union pps_timeu pps_timeu_t; /* generic data type for time stamps */
+typedef struct pps_info pps_info_t;
+typedef struct pps_params pps_params_t;
+
+#define assert_timestamp assert_tu.tspec
+#define clear_timestamp clear_tu.tspec
+
+#define assert_timestamp_ntpfp assert_tu.ntpfp
+#define clear_timestamp_ntpfp clear_tu.ntpfp
+
+#define assert_offset assert_off_tu.tspec
+#define clear_offset clear_off_tu.tspec
+
+#define assert_offset_ntpfp assert_off_tu.ntpfp
+#define clear_offset_ntpfp clear_off_tu.ntpfp
+
+/*
+ * The PPS API
+ */
+
+static __inline int time_pps_create(int source, pps_handle_t *handle)
+{
+ int ret;
+
+ if (!handle) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* First we check if current device is a PPS valid PPS one...
+ */
+ ret = ioctl(source, PPS_CHECK);
+ if (ret) {
+ errno = EOPNOTSUPP;
+ return -1;
+ }
+
+ /* ... then since in LinuxPPS there are no differences between a
+ * "PPS source" and a "PPS handle", we simply return the same value.
+ */
+ *handle = source;
+
+ return 0;
+}
+
+static __inline int time_pps_destroy(pps_handle_t handle)
+{
+ return close(handle);
+}
+
+static __inline int time_pps_getparams(pps_handle_t handle,
+ pps_params_t *ppsparams)
+{
+ int ret;
+ struct pps_kparams __ppsparams;
+
+ ret = ioctl(handle, PPS_GETPARAMS, &__ppsparams);
+
+ ppsparams->api_version = __ppsparams.api_version;
+ ppsparams->mode = __ppsparams.mode;
+ ppsparams->assert_off_tu.tspec.tv_sec = __ppsparams.assert_off_tu.sec;
+ ppsparams->assert_off_tu.tspec.tv_nsec = __ppsparams.assert_off_tu.nsec;
+ ppsparams->clear_off_tu.tspec.tv_sec = __ppsparams.clear_off_tu.sec;
+ ppsparams->clear_off_tu.tspec.tv_nsec = __ppsparams.clear_off_tu.nsec;
+
+ return ret;
+}
+
+static __inline int time_pps_setparams(pps_handle_t handle,
+ const pps_params_t *ppsparams)
+{
+ struct pps_kparams __ppsparams;
+
+ __ppsparams.api_version = ppsparams->api_version;
+ __ppsparams.mode = ppsparams->mode;
+ __ppsparams.assert_off_tu.sec = ppsparams->assert_off_tu.tspec.tv_sec;
+ __ppsparams.assert_off_tu.nsec = ppsparams->assert_off_tu.tspec.tv_nsec;
+ __ppsparams.clear_off_tu.sec = ppsparams->clear_off_tu.tspec.tv_sec;
+ __ppsparams.clear_off_tu.nsec = ppsparams->clear_off_tu.tspec.tv_nsec;
+
+ return ioctl(handle, PPS_SETPARAMS, &__ppsparams);
+}
+
+/* Get capabilities for handle */
+static __inline int time_pps_getcap(pps_handle_t handle, int *mode)
+{
+ return ioctl(handle, PPS_GETCAP, mode);
+}
+
+static __inline int time_pps_fetch(pps_handle_t handle, const int tsformat,
+ pps_info_t *ppsinfobuf,
+ const struct timespec *timeout)
+{
+ struct pps_fdata __fdata;
+ int ret;
+
+ /* Sanity checks */
+ if (tsformat != PPS_TSFMT_TSPEC) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (timeout) {
+ __fdata.timeout.sec = timeout->tv_sec;
+ __fdata.timeout.nsec = timeout->tv_nsec;
+ __fdata.timeout.flags = ~PPS_TIME_INVALID;
+ } else
+ __fdata.timeout.flags = PPS_TIME_INVALID;
+
+ ret = ioctl(handle, PPS_FETCH, &__fdata);
+
+ ppsinfobuf->assert_sequence = __fdata.info.assert_sequence;
+ ppsinfobuf->clear_sequence = __fdata.info.clear_sequence;
+ ppsinfobuf->assert_tu.tspec.tv_sec = __fdata.info.assert_tu.sec;
+ ppsinfobuf->assert_tu.tspec.tv_nsec = __fdata.info.assert_tu.nsec;
+ ppsinfobuf->clear_tu.tspec.tv_sec = __fdata.info.clear_tu.sec;
+ ppsinfobuf->clear_tu.tspec.tv_nsec = __fdata.info.clear_tu.nsec;
+ ppsinfobuf->current_mode = __fdata.info.current_mode;
+
+ return ret;
+}
+
+static __inline int time_pps_kcbind(pps_handle_t handle,
+ const int kernel_consumer,
+ const int edge, const int tsformat)
+{
+ /* LinuxPPS doesn't implement kernel consumer feature */
+ errno = EOPNOTSUPP;
+ return -1;
+}
+
+#endif /* _SYS_TIMEPPS_H_ */
_
Patches currently in -mm which might be from giometti@linux.it are
linuxpps-core-support.patch
pps-userland-header-file-for-pps-api.patch
pps-documentation-programs-and-examples.patch
pps-linuxpps-clients-support.patch
pps-serial-clients-support.patch
pps-example-program-to-enable-pps-support-on-serial-ports.patch
pps-parallel-port-clients-support.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* + pps-userland-header-file-for-pps-api.patch added to -mm tree
@ 2008-11-25 22:35 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2008-11-25 22:35 UTC (permalink / raw)
To: mm-commits
Cc: giometti, alan, davej, dwmw2, greg, hpa, kay.sievers, mingo,
mtk.manpages, randy.dunlap, sam, zippel
The patch titled
PPS: userland header file for PPS API
has been added to the -mm tree. Its filename is
pps-userland-header-file-for-pps-api.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: PPS: userland header file for PPS API
From: Rodolfo Giometti <giometti@linux.it>
This patch adds into the PPS's documentation directory a possible
implementation of the PPS API (RFC 2783) by using the LinuxPPS's char
devices.
This file is not just an example but it can be used into real systems. :)
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Dave Jones <davej@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Greg KH <greg@kroah.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
Documentation/pps/timepps.h | 195 ++++++++++++++++++++++++++++++++++
1 file changed, 195 insertions(+)
diff -puN /dev/null Documentation/pps/timepps.h
--- /dev/null
+++ a/Documentation/pps/timepps.h
@@ -0,0 +1,195 @@
+/*
+ * timepps.h -- PPS API main header
+ *
+ * Copyright (C) 2005-2007 Rodolfo Giometti <giometti@linux.it>
+ *
+ * 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 _SYS_TIMEPPS_H_
+#define _SYS_TIMEPPS_H_
+
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <errno.h>
+#include <linux/pps.h>
+
+#define LINUXPPS 1 /* signal we are using LinuxPPS */
+
+/*
+ * New data structures
+ */
+
+struct ntp_fp {
+ unsigned int integral;
+ unsigned int fractional;
+};
+
+union pps_timeu {
+ struct timespec tspec;
+ struct ntp_fp ntpfp;
+ unsigned long longpad[3];
+};
+
+struct pps_info {
+ unsigned long assert_sequence; /* seq. num. of assert event */
+ unsigned long clear_sequence; /* seq. num. of clear event */
+ union pps_timeu assert_tu; /* time of assert event */
+ union pps_timeu clear_tu; /* time of clear event */
+ int current_mode; /* current mode bits */
+};
+
+struct pps_params {
+ int api_version; /* API version # */
+ int mode; /* mode bits */
+ union pps_timeu assert_off_tu; /* offset compensation for assert */
+ union pps_timeu clear_off_tu; /* offset compensation for clear */
+};
+
+typedef int pps_handle_t; /* represents a PPS source */
+typedef unsigned long pps_seq_t; /* sequence number */
+typedef struct ntp_fp ntp_fp_t; /* NTP-compatible time stamp */
+typedef union pps_timeu pps_timeu_t; /* generic data type for time stamps */
+typedef struct pps_info pps_info_t;
+typedef struct pps_params pps_params_t;
+
+#define assert_timestamp assert_tu.tspec
+#define clear_timestamp clear_tu.tspec
+
+#define assert_timestamp_ntpfp assert_tu.ntpfp
+#define clear_timestamp_ntpfp clear_tu.ntpfp
+
+#define assert_offset assert_off_tu.tspec
+#define clear_offset clear_off_tu.tspec
+
+#define assert_offset_ntpfp assert_off_tu.ntpfp
+#define clear_offset_ntpfp clear_off_tu.ntpfp
+
+/*
+ * The PPS API
+ */
+
+static __inline int time_pps_create(int source, pps_handle_t *handle)
+{
+ int ret;
+
+ if (!handle) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* First we check if current device is a PPS valid PPS one...
+ */
+ ret = ioctl(source, PPS_CHECK);
+ if (ret) {
+ errno = EOPNOTSUPP;
+ return -1;
+ }
+
+ /* ... then since in LinuxPPS there are no differences between a
+ * "PPS source" and a "PPS handle", we simply return the same value.
+ */
+ *handle = source;
+
+ return 0;
+}
+
+static __inline int time_pps_destroy(pps_handle_t handle)
+{
+ return close(handle);
+}
+
+static __inline int time_pps_getparams(pps_handle_t handle,
+ pps_params_t *ppsparams)
+{
+ int ret;
+ struct pps_kparams __ppsparams;
+
+ ret = ioctl(handle, PPS_GETPARAMS, &__ppsparams);
+
+ ppsparams->api_version = __ppsparams.api_version;
+ ppsparams->mode = __ppsparams.mode;
+ ppsparams->assert_off_tu.tspec.tv_sec = __ppsparams.assert_off_tu.sec;
+ ppsparams->assert_off_tu.tspec.tv_nsec = __ppsparams.assert_off_tu.nsec;
+ ppsparams->clear_off_tu.tspec.tv_sec = __ppsparams.clear_off_tu.sec;
+ ppsparams->clear_off_tu.tspec.tv_nsec = __ppsparams.clear_off_tu.nsec;
+
+ return ret;
+}
+
+static __inline int time_pps_setparams(pps_handle_t handle,
+ const pps_params_t *ppsparams)
+{
+ struct pps_kparams __ppsparams;
+
+ __ppsparams.api_version = ppsparams->api_version;
+ __ppsparams.mode = ppsparams->mode;
+ __ppsparams.assert_off_tu.sec = ppsparams->assert_off_tu.tspec.tv_sec;
+ __ppsparams.assert_off_tu.nsec = ppsparams->assert_off_tu.tspec.tv_nsec;
+ __ppsparams.clear_off_tu.sec = ppsparams->clear_off_tu.tspec.tv_sec;
+ __ppsparams.clear_off_tu.nsec = ppsparams->clear_off_tu.tspec.tv_nsec;
+
+ return ioctl(handle, PPS_SETPARAMS, &__ppsparams);
+}
+
+/* Get capabilities for handle */
+static __inline int time_pps_getcap(pps_handle_t handle, int *mode)
+{
+ return ioctl(handle, PPS_GETCAP, mode);
+}
+
+static __inline int time_pps_fetch(pps_handle_t handle, const int tsformat,
+ pps_info_t *ppsinfobuf,
+ const struct timespec *timeout)
+{
+ struct pps_fdata __fdata;
+ int ret;
+
+ /* Sanity checks */
+ if (tsformat != PPS_TSFMT_TSPEC) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (timeout) {
+ __fdata.timeout.sec = timeout->tv_sec;
+ __fdata.timeout.nsec = timeout->tv_nsec;
+ __fdata.timeout.flags = ~PPS_TIME_INVALID;
+ } else
+ __fdata.timeout.flags = PPS_TIME_INVALID;
+
+ ret = ioctl(handle, PPS_FETCH, &__fdata);
+
+ ppsinfobuf->assert_sequence = __fdata.info.assert_sequence;
+ ppsinfobuf->clear_sequence = __fdata.info.clear_sequence;
+ ppsinfobuf->assert_tu.tspec.tv_sec = __fdata.info.assert_tu.sec;
+ ppsinfobuf->assert_tu.tspec.tv_nsec = __fdata.info.assert_tu.nsec;
+ ppsinfobuf->clear_tu.tspec.tv_sec = __fdata.info.clear_tu.sec;
+ ppsinfobuf->clear_tu.tspec.tv_nsec = __fdata.info.clear_tu.nsec;
+ ppsinfobuf->current_mode = __fdata.info.current_mode;
+
+ return ret;
+}
+
+static __inline int time_pps_kcbind(pps_handle_t handle,
+ const int kernel_consumer,
+ const int edge, const int tsformat)
+{
+ /* LinuxPPS doesn't implement kernel consumer feature */
+ errno = EOPNOTSUPP;
+ return -1;
+}
+
+#endif /* _SYS_TIMEPPS_H_ */
_
Patches currently in -mm which might be from giometti@linux.it are
linux-next.patch
linuxpps-core-support.patch
pps-userland-header-file-for-pps-api.patch
pps-documentation-programs-and-examples.patch
pps-linuxpps-clients-support.patch
ldisc-new-dcd_change-method-for-line-disciplines.patch
ldisc-n_tty-export-all-n_tty-ldisc-methods.patch
pps-serial-clients-support.patch
pps-parallel-port-clients-support.patch
pps-low-level-irq-timestamps-recording.patch
^ permalink raw reply [flat|nested] 3+ messages in thread* + pps-userland-header-file-for-pps-api.patch added to -mm tree
@ 2008-11-26 23:53 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2008-11-26 23:53 UTC (permalink / raw)
To: mm-commits
Cc: giometti, alan, davej, dwmw2, greg, hpa, kay.sievers, mingo,
mtk.manpages, randy.dunlap, sam, zippel
The patch titled
PPS: userland header file for PPS API
has been added to the -mm tree. Its filename is
pps-userland-header-file-for-pps-api.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: PPS: userland header file for PPS API
From: Rodolfo Giometti <giometti@linux.it>
This patch adds into the PPS's documentation directory a possible
implementation of the PPS API (RFC 2783) by using the LinuxPPS's char
devices.
This file is not just an example but it can be used into real systems. :)
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Dave Jones <davej@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Greg KH <greg@kroah.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
Documentation/pps/timepps.h | 195 ++++++++++++++++++++++++++++++++++
1 file changed, 195 insertions(+)
diff -puN /dev/null Documentation/pps/timepps.h
--- /dev/null
+++ a/Documentation/pps/timepps.h
@@ -0,0 +1,195 @@
+/*
+ * timepps.h -- PPS API main header
+ *
+ * Copyright (C) 2005-2007 Rodolfo Giometti <giometti@linux.it>
+ *
+ * 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 _SYS_TIMEPPS_H_
+#define _SYS_TIMEPPS_H_
+
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <errno.h>
+#include <linux/pps.h>
+
+#define LINUXPPS 1 /* signal we are using LinuxPPS */
+
+/*
+ * New data structures
+ */
+
+struct ntp_fp {
+ unsigned int integral;
+ unsigned int fractional;
+};
+
+union pps_timeu {
+ struct timespec tspec;
+ struct ntp_fp ntpfp;
+ unsigned long longpad[3];
+};
+
+struct pps_info {
+ unsigned long assert_sequence; /* seq. num. of assert event */
+ unsigned long clear_sequence; /* seq. num. of clear event */
+ union pps_timeu assert_tu; /* time of assert event */
+ union pps_timeu clear_tu; /* time of clear event */
+ int current_mode; /* current mode bits */
+};
+
+struct pps_params {
+ int api_version; /* API version # */
+ int mode; /* mode bits */
+ union pps_timeu assert_off_tu; /* offset compensation for assert */
+ union pps_timeu clear_off_tu; /* offset compensation for clear */
+};
+
+typedef int pps_handle_t; /* represents a PPS source */
+typedef unsigned long pps_seq_t; /* sequence number */
+typedef struct ntp_fp ntp_fp_t; /* NTP-compatible time stamp */
+typedef union pps_timeu pps_timeu_t; /* generic data type for time stamps */
+typedef struct pps_info pps_info_t;
+typedef struct pps_params pps_params_t;
+
+#define assert_timestamp assert_tu.tspec
+#define clear_timestamp clear_tu.tspec
+
+#define assert_timestamp_ntpfp assert_tu.ntpfp
+#define clear_timestamp_ntpfp clear_tu.ntpfp
+
+#define assert_offset assert_off_tu.tspec
+#define clear_offset clear_off_tu.tspec
+
+#define assert_offset_ntpfp assert_off_tu.ntpfp
+#define clear_offset_ntpfp clear_off_tu.ntpfp
+
+/*
+ * The PPS API
+ */
+
+static __inline int time_pps_create(int source, pps_handle_t *handle)
+{
+ int ret;
+
+ if (!handle) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* First we check if current device is a PPS valid PPS one...
+ */
+ ret = ioctl(source, PPS_CHECK);
+ if (ret) {
+ errno = EOPNOTSUPP;
+ return -1;
+ }
+
+ /* ... then since in LinuxPPS there are no differences between a
+ * "PPS source" and a "PPS handle", we simply return the same value.
+ */
+ *handle = source;
+
+ return 0;
+}
+
+static __inline int time_pps_destroy(pps_handle_t handle)
+{
+ return close(handle);
+}
+
+static __inline int time_pps_getparams(pps_handle_t handle,
+ pps_params_t *ppsparams)
+{
+ int ret;
+ struct pps_kparams __ppsparams;
+
+ ret = ioctl(handle, PPS_GETPARAMS, &__ppsparams);
+
+ ppsparams->api_version = __ppsparams.api_version;
+ ppsparams->mode = __ppsparams.mode;
+ ppsparams->assert_off_tu.tspec.tv_sec = __ppsparams.assert_off_tu.sec;
+ ppsparams->assert_off_tu.tspec.tv_nsec = __ppsparams.assert_off_tu.nsec;
+ ppsparams->clear_off_tu.tspec.tv_sec = __ppsparams.clear_off_tu.sec;
+ ppsparams->clear_off_tu.tspec.tv_nsec = __ppsparams.clear_off_tu.nsec;
+
+ return ret;
+}
+
+static __inline int time_pps_setparams(pps_handle_t handle,
+ const pps_params_t *ppsparams)
+{
+ struct pps_kparams __ppsparams;
+
+ __ppsparams.api_version = ppsparams->api_version;
+ __ppsparams.mode = ppsparams->mode;
+ __ppsparams.assert_off_tu.sec = ppsparams->assert_off_tu.tspec.tv_sec;
+ __ppsparams.assert_off_tu.nsec = ppsparams->assert_off_tu.tspec.tv_nsec;
+ __ppsparams.clear_off_tu.sec = ppsparams->clear_off_tu.tspec.tv_sec;
+ __ppsparams.clear_off_tu.nsec = ppsparams->clear_off_tu.tspec.tv_nsec;
+
+ return ioctl(handle, PPS_SETPARAMS, &__ppsparams);
+}
+
+/* Get capabilities for handle */
+static __inline int time_pps_getcap(pps_handle_t handle, int *mode)
+{
+ return ioctl(handle, PPS_GETCAP, mode);
+}
+
+static __inline int time_pps_fetch(pps_handle_t handle, const int tsformat,
+ pps_info_t *ppsinfobuf,
+ const struct timespec *timeout)
+{
+ struct pps_fdata __fdata;
+ int ret;
+
+ /* Sanity checks */
+ if (tsformat != PPS_TSFMT_TSPEC) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (timeout) {
+ __fdata.timeout.sec = timeout->tv_sec;
+ __fdata.timeout.nsec = timeout->tv_nsec;
+ __fdata.timeout.flags = ~PPS_TIME_INVALID;
+ } else
+ __fdata.timeout.flags = PPS_TIME_INVALID;
+
+ ret = ioctl(handle, PPS_FETCH, &__fdata);
+
+ ppsinfobuf->assert_sequence = __fdata.info.assert_sequence;
+ ppsinfobuf->clear_sequence = __fdata.info.clear_sequence;
+ ppsinfobuf->assert_tu.tspec.tv_sec = __fdata.info.assert_tu.sec;
+ ppsinfobuf->assert_tu.tspec.tv_nsec = __fdata.info.assert_tu.nsec;
+ ppsinfobuf->clear_tu.tspec.tv_sec = __fdata.info.clear_tu.sec;
+ ppsinfobuf->clear_tu.tspec.tv_nsec = __fdata.info.clear_tu.nsec;
+ ppsinfobuf->current_mode = __fdata.info.current_mode;
+
+ return ret;
+}
+
+static __inline int time_pps_kcbind(pps_handle_t handle,
+ const int kernel_consumer,
+ const int edge, const int tsformat)
+{
+ /* LinuxPPS doesn't implement kernel consumer feature */
+ errno = EOPNOTSUPP;
+ return -1;
+}
+
+#endif /* _SYS_TIMEPPS_H_ */
_
Patches currently in -mm which might be from giometti@linux.it are
linux-next.patch
linuxpps-core-support.patch
pps-userland-header-file-for-pps-api.patch
pps-documentation-programs-and-examples.patch
pps-linuxpps-clients-support.patch
ldisc-new-dcd_change-method-for-line-disciplines.patch
ldisc-n_tty-export-all-n_tty-ldisc-methods.patch
pps-serial-clients-support.patch
pps-parallel-port-clients-support.patch
pps-low-level-irq-timestamps-recording.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2008-11-26 23:54 UTC | newest]
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2008-03-20 20:03 + pps-userland-header-file-for-pps-api.patch added to -mm tree akpm
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2008-11-25 22:35 akpm
2008-11-26 23:53 akpm
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