1 /*- 2 * Copyright 2018 Michal Meloun <mmel@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef _DEV_PHY_INTERNAL_H_ 27 #define _DEV_PHY_INTERNAL_H_ 28 29 /* Forward declarations. */ 30 struct phy; 31 struct phynode; 32 33 typedef TAILQ_HEAD(phynode_list, phynode) phynode_list_t; 34 typedef TAILQ_HEAD(phy_list, phy) phy_list_t; 35 36 /* 37 * Phy node 38 */ 39 struct phynode { 40 KOBJ_FIELDS; 41 42 TAILQ_ENTRY(phynode) phylist_link; /* Global list entry */ 43 phy_list_t consumers_list; /* Consumers list */ 44 45 46 /* Details of this device. */ 47 const char *name; /* Globally unique name */ 48 49 device_t pdev; /* Producer device_t */ 50 void *softc; /* Producer softc */ 51 intptr_t id; /* Per producer unique id */ 52 #ifdef FDT 53 phandle_t ofw_node; /* OFW node of phy */ 54 #endif 55 struct sx lock; /* Lock for this phy */ 56 int ref_cnt; /* Reference counter */ 57 int enable_cnt; /* Enabled counter */ 58 }; 59 60 struct phy { 61 device_t cdev; /* consumer device*/ 62 struct phynode *phynode; 63 TAILQ_ENTRY(phy) link; /* Consumers list entry */ 64 65 int enable_cnt; 66 }; 67 68 69 #define PHY_TOPO_SLOCK() sx_slock(&phynode_topo_lock) 70 #define PHY_TOPO_XLOCK() sx_xlock(&phynode_topo_lock) 71 #define PHY_TOPO_UNLOCK() sx_unlock(&phynode_topo_lock) 72 #define PHY_TOPO_ASSERT() sx_assert(&phynode_topo_lock, SA_LOCKED) 73 #define PHY_TOPO_XASSERT() sx_assert(&phynode_topo_lock, SA_XLOCKED) 74 75 #define PHYNODE_SLOCK(_sc) sx_slock(&((_sc)->lock)) 76 #define PHYNODE_XLOCK(_sc) sx_xlock(&((_sc)->lock)) 77 #define PHYNODE_UNLOCK(_sc) sx_unlock(&((_sc)->lock)) 78 79 extern struct sx phynode_topo_lock; 80 81 #endif /* _DEV_PHY_INTERNAL_H_ */ 82