miivar.h revision 1.4
1 /* $NetBSD: miivar.h,v 1.4 1998/11/04 23:28:15 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #ifndef _DEV_MII_MIIVAR_H_ 41 #define _DEV_MII_MIIVAR_H_ 42 43 #include <sys/queue.h> 44 45 /* 46 * Media Independent Interface autoconfiguration defintions. 47 * 48 * This file exports an interface which attempts to be compatible 49 * with the BSD/OS 3.0 interface. 50 */ 51 52 struct mii_softc; 53 54 /* 55 * Callbacks from MII layer into network interface device driver. 56 */ 57 typedef int (*mii_readreg_t) __P((struct device *, int, int)); 58 typedef void (*mii_writereg_t) __P((struct device *, int, int, int)); 59 typedef void (*mii_statchg_t) __P((struct device *)); 60 61 /* 62 * A network interface driver has one of these structures in its softc. 63 * It is the interface from the network interface driver to the MII 64 * layer. 65 */ 66 struct mii_data { 67 struct ifmedia mii_media; /* media information */ 68 struct ifnet *mii_ifp; /* pointer back to network interface */ 69 70 /* 71 * For network interfaces with multiple PHYs, a list of all 72 * PHYs is required so they can all be notified when a media 73 * request is made. 74 */ 75 LIST_HEAD(mii_listhead, mii_softc) mii_phys; 76 int mii_instance; 77 78 /* 79 * PHY driver fills this in with active media status. 80 */ 81 int mii_media_status; 82 int mii_media_active; 83 84 /* 85 * Calls from MII layer into network interface driver. 86 */ 87 mii_readreg_t mii_readreg; 88 mii_writereg_t mii_writereg; 89 mii_statchg_t mii_statchg; 90 }; 91 typedef struct mii_data mii_data_t; 92 93 /* 94 * This call is used by the MII layer to call into the PHY driver 95 * to perform a `service request'. 96 */ 97 typedef int (*mii_downcall_t) __P((struct mii_softc *, struct mii_data *, int)); 98 99 /* 100 * Requests that can be made to the downcall. 101 */ 102 #define MII_TICK 1 /* once-per-second tick */ 103 #define MII_MEDIACHG 2 /* user changed media; perform the switch */ 104 #define MII_POLLSTAT 3 /* user requested media status; fill it in */ 105 106 /* 107 * Each PHY driver's softc has one of these as the first member. 108 * XXX This would be better named "phy_softc", but this is the name 109 * XXX BSDI used, and we would like to have the same interface. 110 */ 111 struct mii_softc { 112 struct device mii_dev; /* generic device glue */ 113 114 LIST_ENTRY(mii_softc) mii_list; /* entry on parent's PHY list */ 115 116 int mii_phy; /* our MII address */ 117 int mii_inst; /* instance for ifmedia */ 118 119 mii_downcall_t mii_service; /* our downcall */ 120 struct mii_data *mii_pdata; /* pointer to parent's mii_data */ 121 122 int mii_flags; /* misc. flags; see below */ 123 int mii_capabilities; /* capabilities from BMSR */ 124 }; 125 typedef struct mii_softc mii_softc_t; 126 127 /* mii_flags */ 128 #define MIIF_NOISOLATE 0x0001 /* do not isolate the PHY */ 129 130 /* 131 * Used to attach a PHY to a parent. 132 */ 133 struct mii_attach_args { 134 struct mii_data *mii_data; /* pointer to parent data */ 135 int mii_phyno; /* MII address */ 136 int mii_id1; /* PHY ID register 1 */ 137 int mii_id2; /* PHY ID register 2 */ 138 int mii_capmask; /* capability mask from BMSR */ 139 }; 140 typedef struct mii_attach_args mii_attach_args_t; 141 142 #ifdef _KERNEL 143 #include "locators.h" 144 145 #define PHY_READ(p, r) \ 146 (*(p)->mii_pdata->mii_readreg)((p)->mii_dev.dv_parent, \ 147 (p)->mii_phy, (r)) 148 149 #define PHY_WRITE(p, r, v) \ 150 (*(p)->mii_pdata->mii_writereg)((p)->mii_dev.dv_parent, \ 151 (p)->mii_phy, (r), (v)) 152 153 int mii_anar __P((int)); 154 int mii_mediachg __P((struct mii_data *)); 155 void mii_tick __P((struct mii_data *)); 156 void mii_pollstat __P((struct mii_data *)); 157 void mii_phy_probe __P((struct device *, struct mii_data *, int)); 158 void mii_add_media __P((struct mii_data *, int, int)); 159 160 int mii_phy_auto __P((struct mii_softc *)); 161 void mii_phy_reset __P((struct mii_softc *)); 162 #endif /* _KERNEL */ 163 164 #endif /* _DEV_MII_MIIVAR_H_ */ 165
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