/*	$NetBSD: ath_netbsd.h,v 1.9 2009/10/19 23:19:39 rmind Exp $ */

/*-
 * Copyright (c) 2003, 2004 David Young
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef _ATH_NETBSD_H
#define _ATH_NETBSD_H

#undef KASSERT
#define KASSERT(__cond, __complaint) if (!(__cond)) panic __complaint

typedef struct ath_task {
	void	(*t_func)(void*, int);
	void	*t_context;
} ath_task_t;

#define ATH_CALLOUT_INIT(__ch, __mpsafe) callout_init((__ch), 0)

#define TASK_INIT(__task, __zero, __func, __context)	\
	do {						\
		(__task)->t_func = (__func);		\
		(__task)->t_context = (__context);	\
	} while (0)

#define TASK_RUN_OR_ENQUEUE(__task)	\
	((*(__task)->t_func)((__task)->t_context, 1))

struct ath_lock {
	int count;
	int ipl;
};

#define	ATH_LOCK_INIT_IMPL(_obj, _member)		\
	do { (_obj)->_member.count = 0; } while (0)
#define	ATH_LOCK_IMPL(_obj, _member)			\
	do {						\
		int __s = splnet();			\
		if ((_obj)->_member.count++ == 0)	\
			(_obj)->_member.ipl = __s;	\
	} while (0)
#define	ATH_UNLOCK_IMPL(_obj, _member)					\
	do {								\
		if (--(_obj)->_member.count == 0)			\
			splx((_obj)->_member.ipl);			\
		else {							\
			KASSERT((_obj)->_member.count >= 0,		\
			    ("%s: no ATH_LOCK holders", __func__));	\
		}							\
	} while (0)

typedef struct ath_lock ath_lock_t;
#define	ATH_LOCK_INIT(_sc)	ATH_LOCK_INIT_IMPL(_sc, sc_mtx)
#define	ATH_LOCK_DESTROY(_sc)
#define	ATH_LOCK(_sc)	ATH_LOCK_IMPL(_sc, sc_mtx)
#define	ATH_UNLOCK(_sc)	ATH_UNLOCK_IMPL(_sc, sc_mtx)
#define	ATH_LOCK_ASSERT(_sc)

typedef struct ath_lock ath_txq_lock_t;
#define	ATH_TXQ_LOCK_INIT(_sc, _tq)	ATH_LOCK_INIT_IMPL(_tq, axq_lock)
#define	ATH_TXQ_LOCK_DESTROY(_tq)
#define	ATH_TXQ_LOCK(_tq)		ATH_LOCK_IMPL(_tq, axq_lock)
#define	ATH_TXQ_UNLOCK(_tq)		ATH_UNLOCK_IMPL(_tq, axq_lock)
#define	ATH_TXQ_LOCK_ASSERT(_tq)

typedef struct ath_lock ath_txbuf_lock_t;
#define	ATH_TXBUF_LOCK_INIT(_sc)	ATH_LOCK_INIT_IMPL(_sc, sc_txbuflock)
#define	ATH_TXBUF_LOCK_DESTROY(_sc)
#define	ATH_TXBUF_LOCK(_sc)		ATH_LOCK_IMPL(_sc, sc_txbuflock)
#define	ATH_TXBUF_UNLOCK(_sc)		ATH_UNLOCK_IMPL(_sc, sc_txbuflock)
#define	ATH_TXBUF_LOCK_ASSERT(_sc)

#define	NET_LOCK_GIANT()
#define	NET_UNLOCK_GIANT()

#define	IF_LOCK(__q)
#define	IF_UNLOCK(__q)

#define	SYSCTL_INT_SUBR(__rw, __name, __descr)				     \
	sysctl_createv(log, 0, &rnode, &cnode, CTLFLAG_PERMANENT|(__rw),     \
	    CTLTYPE_INT, #__name, SYSCTL_DESCR(__descr), ath_sysctl_##__name,\
	    0, sc, 0, CTL_CREATE, CTL_EOL)

#define	__PFX(__pfx, __name)	__pfx##__name

#define	SYSCTL_PFX_INT(__pfx, __rw, __name, __descr)			\
	sysctl_createv(log, 0, &rnode, &cnode, CTLFLAG_PERMANENT|(__rw),\
	    CTLTYPE_INT, #__name, SYSCTL_DESCR(__descr), NULL, 0,	\
	    __PFX(&__pfx, __name), 0, CTL_CREATE, CTL_EOL)

#define	SYSCTL_INT(__rw, __name, __descr)				\
	SYSCTL_PFX_INT(sc->sc_, __rw, __name, __descr)

#define	SYSCTL_GLOBAL_INT(__rw, __name, __descr, __var)			\
	sysctl_createv(clog, 0, &rnode, &cnode,				\
	    CTLFLAG_PERMANENT|(__rw), CTLTYPE_INT, __name,		\
	    SYSCTL_DESCR(__descr), NULL, 0, &ath_##__var, 0, CTL_CREATE,\
	    CTL_EOL)

extern void device_printf(device_t, const char *fmt, ...)
    __attribute__((__format__(__printf__,2,3)));
const struct sysctlnode *ath_sysctl_treetop(struct sysctllog **);
const struct sysctlnode *ath_sysctl_instance(const char *, struct sysctllog **);

#endif /* _ATH_NETBSD_H */