/*
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* Copyright (C) 2013 Philippe Gerum <rpm@xenomai.org>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#ifndef _COBALT_UAPI_KERNEL_TYPES_H
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#define _COBALT_UAPI_KERNEL_TYPES_H
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#include <linux/types.h>
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#include <cobalt/uapi/kernel/limits.h>
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typedef __u64 xnticks_t;
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typedef __s64 xnsticks_t;
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typedef __u32 xnhandle_t;
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#define XN_NO_HANDLE ((xnhandle_t)0)
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#define XN_HANDLE_INDEX_MASK ((xnhandle_t)0xf0000000)
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/* Fixed bits (part of the identifier) */
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#define XNSYNCH_PSHARED ((xnhandle_t)0x40000000)
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/* Transient bits (expressing a status) */
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#define XNSYNCH_FLCLAIM ((xnhandle_t)0x80000000) /* Contended. */
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#define XNSYNCH_FLCEIL ((xnhandle_t)0x20000000) /* Ceiling active. */
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#define XN_HANDLE_TRANSIENT_MASK (XNSYNCH_FLCLAIM|XNSYNCH_FLCEIL)
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/*
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* Strip all special bits from the handle, only retaining the object
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* index value in the registry.
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*/
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static inline xnhandle_t xnhandle_get_index(xnhandle_t handle)
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{
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return handle & ~XN_HANDLE_INDEX_MASK;
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}
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/*
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* Strip the transient bits from the handle, only retaining the fixed
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* part making the identifier.
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*/
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static inline xnhandle_t xnhandle_get_id(xnhandle_t handle)
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{
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return handle & ~XN_HANDLE_TRANSIENT_MASK;
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}
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/*
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* Our representation of time specs at the kernel<->user interface
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* boundary at the moment, until we have fully transitioned to a
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* y2038-safe implementation in libcobalt. Once done, those legacy
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* types will be removed.
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*/
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struct __user_old_timespec {
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long tv_sec;
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long tv_nsec;
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};
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struct __user_old_itimerspec {
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struct __user_old_timespec it_interval;
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struct __user_old_timespec it_value;
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};
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struct __user_old_timeval {
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long tv_sec;
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long tv_usec;
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};
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/* Lifted from include/uapi/linux/timex.h. */
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struct __user_old_timex {
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unsigned int modes; /* mode selector */
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__kernel_long_t offset; /* time offset (usec) */
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__kernel_long_t freq; /* frequency offset (scaled ppm) */
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__kernel_long_t maxerror;/* maximum error (usec) */
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__kernel_long_t esterror;/* estimated error (usec) */
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int status; /* clock command/status */
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__kernel_long_t constant;/* pll time constant */
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__kernel_long_t precision;/* clock precision (usec) (read only) */
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__kernel_long_t tolerance;/* clock frequency tolerance (ppm)
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* (read only)
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*/
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struct __user_old_timeval time; /* (read only, except for ADJ_SETOFFSET) */
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__kernel_long_t tick; /* (modified) usecs between clock ticks */
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__kernel_long_t ppsfreq;/* pps frequency (scaled ppm) (ro) */
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__kernel_long_t jitter; /* pps jitter (us) (ro) */
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int shift; /* interval duration (s) (shift) (ro) */
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__kernel_long_t stabil; /* pps stability (scaled ppm) (ro) */
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__kernel_long_t jitcnt; /* jitter limit exceeded (ro) */
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__kernel_long_t calcnt; /* calibration intervals (ro) */
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__kernel_long_t errcnt; /* calibration errors (ro) */
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__kernel_long_t stbcnt; /* stability limit exceeded (ro) */
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int tai; /* TAI offset (ro) */
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int :32; int :32; int :32; int :32;
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int :32; int :32; int :32; int :32;
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int :32; int :32; int :32;
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};
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#endif /* !_COBALT_UAPI_KERNEL_TYPES_H */
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