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/*-
* Copyright 2018 Michal Meloun <mmel@FreeBSD.org>
* 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 _DEV_PHY_INTERNAL_H_
#define _DEV_PHY_INTERNAL_H_
/* Forward declarations. */
struct phy;
struct phynode;
typedef TAILQ_HEAD(phynode_list, phynode) phynode_list_t;
typedef TAILQ_HEAD(phy_list, phy) phy_list_t;
/*
* Phy node
*/
struct phynode {
KOBJ_FIELDS;
TAILQ_ENTRY(phynode) phylist_link; /* Global list entry */
phy_list_t consumers_list; /* Consumers list */
/* Details of this device. */
const char *name; /* Globally unique name */
device_t pdev; /* Producer device_t */
void *softc; /* Producer softc */
intptr_t id; /* Per producer unique id */
#ifdef FDT
phandle_t ofw_node; /* OFW node of phy */
#endif
struct sx lock; /* Lock for this phy */
int ref_cnt; /* Reference counter */
int enable_cnt; /* Enabled counter */
};
struct phy {
device_t cdev; /* consumer device*/
struct phynode *phynode;
TAILQ_ENTRY(phy) link; /* Consumers list entry */
int enable_cnt;
};
#define PHY_TOPO_SLOCK() sx_slock(&phynode_topo_lock)
#define PHY_TOPO_XLOCK() sx_xlock(&phynode_topo_lock)
#define PHY_TOPO_UNLOCK() sx_unlock(&phynode_topo_lock)
#define PHY_TOPO_ASSERT() sx_assert(&phynode_topo_lock, SA_LOCKED)
#define PHY_TOPO_XASSERT() sx_assert(&phynode_topo_lock, SA_XLOCKED)
#define PHYNODE_SLOCK(_sc) sx_slock(&((_sc)->lock))
#define PHYNODE_XLOCK(_sc) sx_xlock(&((_sc)->lock))
#define PHYNODE_UNLOCK(_sc) sx_unlock(&((_sc)->lock))
extern struct sx phynode_topo_lock;
#endif /* _DEV_PHY_INTERNAL_H_ */
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