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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-19 15:19:19 -0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-19 15:19:19 -0400 |
| commit | e05dacd71db0a5da7c1a44bcaab2a8a240b9c233 (patch) | |
| tree | 31382cf1c7d62c03126448affb2fc86e8c4aaa8b /include/uapi/linux/pps.h | |
| parent | 3ab0b83bf6a1e834f4b884150d8012990c75d25d (diff) | |
| parent | ddffeb8c4d0331609ef2581d84de4d763607bd37 (diff) | |
| download | cachepc-linux-e05dacd71db0a5da7c1a44bcaab2a8a240b9c233.tar.gz cachepc-linux-e05dacd71db0a5da7c1a44bcaab2a8a240b9c233.zip | |
Merge commit 'v3.7-rc1' into stable/for-linus-3.7
* commit 'v3.7-rc1': (10892 commits)
Linux 3.7-rc1
x86, boot: Explicitly include autoconf.h for hostprogs
perf: Fix UAPI fallout
ARM: config: make sure that platforms are ordered by option string
ARM: config: sort select statements alphanumerically
UAPI: (Scripted) Disintegrate include/linux/byteorder
UAPI: (Scripted) Disintegrate include/linux
UAPI: Unexport linux/blk_types.h
UAPI: Unexport part of linux/ppp-comp.h
perf: Handle new rbtree implementation
procfs: don't need a PATH_MAX allocation to hold a string representation of an int
vfs: embed struct filename inside of names_cache allocation if possible
audit: make audit_inode take struct filename
vfs: make path_openat take a struct filename pointer
vfs: turn do_path_lookup into wrapper around struct filename variant
audit: allow audit code to satisfy getname requests from its names_list
vfs: define struct filename and have getname() return it
btrfs: Fix compilation with user namespace support enabled
userns: Fix posix_acl_file_xattr_userns gid conversion
userns: Properly print bluetooth socket uids
...
Diffstat (limited to 'include/uapi/linux/pps.h')
| -rw-r--r-- | include/uapi/linux/pps.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/include/uapi/linux/pps.h b/include/uapi/linux/pps.h new file mode 100644 index 000000000000..a9bb1d93451a --- /dev/null +++ b/include/uapi/linux/pps.h @@ -0,0 +1,131 @@ +/* + * PPS API header + * + * Copyright (C) 2005-2009 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 _PPS_H_ +#define _PPS_H_ + +#include <linux/types.h> + +#define PPS_VERSION "5.3.6" +#define PPS_MAX_SOURCES 16 /* should be enough... */ + +/* Implementation note: the logical states ``assert'' and ``clear'' + * are implemented in terms of the chip register, i.e. ``assert'' + * means the bit is set. */ + +/* + * 3.2 New data structures + */ + +#define PPS_API_VERS_1 1 +#define PPS_API_VERS PPS_API_VERS_1 /* we use API version 1 */ +#define PPS_MAX_NAME_LEN 32 + +/* 32-bit vs. 64-bit compatibility. + * + * 0n i386, the alignment of a uint64_t is only 4 bytes, while on most other + * architectures it's 8 bytes. On i386, there will be no padding between the + * two consecutive 'struct pps_ktime' members of struct pps_kinfo and struct + * pps_kparams. But on most platforms there will be padding to ensure correct + * alignment. + * + * The simple fix is probably to add an explicit padding. + * [David Woodhouse] + */ +struct pps_ktime { + __s64 sec; + __s32 nsec; + __u32 flags; +}; +#define PPS_TIME_INVALID (1<<0) /* used to specify timeout==NULL */ + +struct pps_kinfo { + __u32 assert_sequence; /* seq. num. of assert event */ + __u32 clear_sequence; /* seq. num. of clear event */ + struct pps_ktime assert_tu; /* time of assert event */ + struct pps_ktime clear_tu; /* time of clear event */ + int current_mode; /* current mode bits */ +}; + +struct pps_kparams { + int api_version; /* API version # */ + int mode; /* mode bits */ + struct pps_ktime assert_off_tu; /* offset compensation for assert */ + struct pps_ktime clear_off_tu; /* offset compensation for clear */ +}; + +/* + * 3.3 Mode bit definitions + */ + +/* Device/implementation parameters */ +#define PPS_CAPTUREASSERT 0x01 /* capture assert events */ +#define PPS_CAPTURECLEAR 0x02 /* capture clear events */ +#define PPS_CAPTUREBOTH 0x03 /* capture assert and clear events */ + +#define PPS_OFFSETASSERT 0x10 /* apply compensation for assert ev. */ +#define PPS_OFFSETCLEAR 0x20 /* apply compensation for clear ev. */ + +#define PPS_CANWAIT 0x100 /* can we wait for an event? */ +#define PPS_CANPOLL 0x200 /* bit reserved for future use */ + +/* Kernel actions */ +#define PPS_ECHOASSERT 0x40 /* feed back assert event to output */ +#define PPS_ECHOCLEAR 0x80 /* feed back clear event to output */ + +/* Timestamp formats */ +#define PPS_TSFMT_TSPEC 0x1000 /* select timespec format */ +#define PPS_TSFMT_NTPFP 0x2000 /* select NTP format */ + +/* + * 3.4.4 New functions: disciplining the kernel timebase + */ + +/* Kernel consumers */ +#define PPS_KC_HARDPPS 0 /* hardpps() (or equivalent) */ +#define PPS_KC_HARDPPS_PLL 1 /* hardpps() constrained to + use a phase-locked loop */ +#define PPS_KC_HARDPPS_FLL 2 /* hardpps() constrained to + use a frequency-locked loop */ +/* + * Here begins the implementation-specific part! + */ + +struct pps_fdata { + struct pps_kinfo info; + struct pps_ktime timeout; +}; + +struct pps_bind_args { + int tsformat; /* format of time stamps */ + int edge; /* selected event type */ + int consumer; /* selected kernel consumer */ +}; + +#include <linux/ioctl.h> + +#define PPS_GETPARAMS _IOR('p', 0xa1, struct pps_kparams *) +#define PPS_SETPARAMS _IOW('p', 0xa2, struct pps_kparams *) +#define PPS_GETCAP _IOR('p', 0xa3, int *) +#define PPS_FETCH _IOWR('p', 0xa4, struct pps_fdata *) +#define PPS_KC_BIND _IOW('p', 0xa5, struct pps_bind_args *) + +#endif /* _PPS_H_ */ |
