/**
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* This file is part of the Xenomai project.
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*
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* @note Copyright (C) 2009 Philippe Gerum <rpm@xenomai.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; 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 _RTIPC_INTERNAL_H
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#define _RTIPC_INTERNAL_H
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#include <linux/uio.h>
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#include <linux/time.h>
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#include <cobalt/kernel/registry.h>
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#include <cobalt/kernel/clock.h>
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#include <cobalt/kernel/select.h>
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#include <rtdm/rtdm.h>
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#include <rtdm/compat.h>
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#include <rtdm/driver.h>
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struct rtipc_protocol;
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struct rtipc_private {
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struct rtipc_protocol *proto;
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DECLARE_XNSELECT(send_block);
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DECLARE_XNSELECT(recv_block);
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void *state;
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};
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struct rtipc_protocol {
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const char *proto_name;
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int proto_statesz;
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int (*proto_init)(void);
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void (*proto_exit)(void);
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struct {
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int (*socket)(struct rtdm_fd *fd);
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void (*close)(struct rtdm_fd *fd);
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ssize_t (*recvmsg)(struct rtdm_fd *fd,
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struct user_msghdr *msg, int flags);
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ssize_t (*sendmsg)(struct rtdm_fd *fd,
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const struct user_msghdr *msg, int flags);
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ssize_t (*read)(struct rtdm_fd *fd,
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void *buf, size_t len);
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ssize_t (*write)(struct rtdm_fd *fd,
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const void *buf, size_t len);
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int (*ioctl)(struct rtdm_fd *fd,
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unsigned int request, void *arg);
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unsigned int (*pollstate)(struct rtdm_fd *fd);
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} proto_ops;
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};
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static inline void *rtipc_fd_to_state(struct rtdm_fd *fd)
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{
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struct rtipc_private *p = rtdm_fd_to_private(fd);
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return p->state;
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}
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static inline nanosecs_rel_t rtipc_timeval_to_ns(const struct __kernel_old_timeval *tv)
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{
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nanosecs_rel_t ns = tv->tv_usec * 1000;
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if (tv->tv_sec)
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ns += (nanosecs_rel_t)tv->tv_sec * 1000000000UL;
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return ns;
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}
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static inline void rtipc_ns_to_timeval(struct __kernel_old_timeval *tv, nanosecs_rel_t ns)
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{
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unsigned long nsecs;
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tv->tv_sec = xnclock_divrem_billion(ns, &nsecs);
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tv->tv_usec = nsecs / 1000;
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}
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int rtipc_get_sockaddr(struct rtdm_fd *fd,
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struct sockaddr_ipc **saddrp,
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const void *arg);
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int rtipc_put_sockaddr(struct rtdm_fd *fd, void *arg,
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const struct sockaddr_ipc *saddr);
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int rtipc_get_sockoptout(struct rtdm_fd *fd,
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struct _rtdm_getsockopt_args *sopt,
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const void *arg);
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int rtipc_put_sockoptout(struct rtdm_fd *fd, void *arg,
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const struct _rtdm_getsockopt_args *sopt);
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int rtipc_get_sockoptin(struct rtdm_fd *fd,
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struct _rtdm_setsockopt_args *sopt,
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const void *arg);
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int rtipc_get_timeval(struct rtdm_fd *fd, struct __kernel_old_timeval *tv,
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const void *arg, size_t arglen);
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int rtipc_put_timeval(struct rtdm_fd *fd, void *arg,
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const struct __kernel_old_timeval *tv, size_t arglen);
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int rtipc_get_length(struct rtdm_fd *fd, size_t *lenp,
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const void *arg, size_t arglen);
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int rtipc_get_arg(struct rtdm_fd *fd, void *dst, const void *src,
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size_t len);
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int rtipc_put_arg(struct rtdm_fd *fd, void *dst, const void *src,
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size_t len);
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extern struct rtipc_protocol xddp_proto_driver;
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extern struct rtipc_protocol iddp_proto_driver;
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extern struct rtipc_protocol bufp_proto_driver;
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extern struct xnptree rtipc_ptree;
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#define rtipc_wait_context xnthread_wait_context
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#define rtipc_prepare_wait xnthread_prepare_wait
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#define rtipc_get_wait_context xnthread_get_wait_context
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#define rtipc_peek_wait_head(obj) xnsynch_peek_pendq(&(obj)->synch_base)
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#define COMPAT_CASE(__op) case __op __COMPAT_CASE(__op ## _COMPAT)
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#endif /* !_RTIPC_INTERNAL_H */
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