1 /*- 2 * Copyright 2018 Michal Meloun <[email protected]> 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 * $FreeBSD$ 26 */ 27 28 #ifndef DEV_EXTRES_PHY_INTERNAL_H 29 #define DEV_EXTRES_PHY_INTERNAL_H 30 31 /* Forward declarations. */ 32 struct phy; 33 struct phynode; 34 35 typedef TAILQ_HEAD(phynode_list, phynode) phynode_list_t; 36 typedef TAILQ_HEAD(phy_list, phy) phy_list_t; 37 38 /* 39 * Phy node 40 */ 41 struct phynode { 42 KOBJ_FIELDS; 43 44 TAILQ_ENTRY(phynode) phylist_link; /* Global list entry */ 45 phy_list_t consumers_list; /* Consumers list */ 46 47 48 /* Details of this device. */ 49 const char *name; /* Globally unique name */ 50 51 device_t pdev; /* Producer device_t */ 52 void *softc; /* Producer softc */ 53 intptr_t id; /* Per producer unique id */ 54 #ifdef FDT 55 phandle_t ofw_node; /* OFW node of phy */ 56 #endif 57 struct sx lock; /* Lock for this phy */ 58 int ref_cnt; /* Reference counter */ 59 int enable_cnt; /* Enabled counter */ 60 }; 61 62 struct phy { 63 device_t cdev; /* consumer device*/ 64 struct phynode *phynode; 65 TAILQ_ENTRY(phy) link; /* Consumers list entry */ 66 67 int enable_cnt; 68 }; 69 70 71 #define PHY_TOPO_SLOCK() sx_slock(&phynode_topo_lock) 72 #define PHY_TOPO_XLOCK() sx_xlock(&phynode_topo_lock) 73 #define PHY_TOPO_UNLOCK() sx_unlock(&phynode_topo_lock) 74 #define PHY_TOPO_ASSERT() sx_assert(&phynode_topo_lock, SA_LOCKED) 75 #define PHY_TOPO_XASSERT() sx_assert(&phynode_topo_lock, SA_XLOCKED) 76 77 #define PHYNODE_SLOCK(_sc) sx_slock(&((_sc)->lock)) 78 #define PHYNODE_XLOCK(_sc) sx_xlock(&((_sc)->lock)) 79 #define PHYNODE_UNLOCK(_sc) sx_unlock(&((_sc)->lock)) 80 81 extern struct sx phynode_topo_lock; 82 83 #endif /* DEV_EXTRES_PHY_INTERNAL_H */ 84