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if_media.h revision 1.7
      1 /*	$NetBSD: if_media.h,v 1.7 1998/08/06 02:19:34 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 /*
     41  * Copyright (c) 1997
     42  *	Jonathan Stone and Jason R. Thorpe.  All rights reserved.
     43  *
     44  * This software is derived from information provided by Matt Thomas.
     45  *
     46  * Redistribution and use in source and binary forms, with or without
     47  * modification, are permitted provided that the following conditions
     48  * are met:
     49  * 1. Redistributions of source code must retain the above copyright
     50  *    notice, this list of conditions and the following disclaimer.
     51  * 2. Redistributions in binary form must reproduce the above copyright
     52  *    notice, this list of conditions and the following disclaimer in the
     53  *    documentation and/or other materials provided with the distribution.
     54  * 3. All advertising materials mentioning features or use of this software
     55  *    must display the following acknowledgement:
     56  *	This product includes software developed by Jonathan Stone
     57  *	and Jason R. Thorpe for the NetBSD Project.
     58  * 4. The names of the authors may not be used to endorse or promote products
     59  *    derived from this software without specific prior written permission.
     60  *
     61  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
     62  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     63  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     64  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     65  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     66  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     67  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     68  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     69  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     70  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     71  * SUCH DAMAGE.
     72  */
     73 
     74 #ifndef _NET_IF_MEDIA_H_
     75 #define _NET_IF_MEDIA_H_
     76 
     77 /*
     78  * Prototypes and definitions for BSD/OS-compatible network interface
     79  * media selection.
     80  *
     81  * Where it is safe to do so, this code strays slightly from the BSD/OS
     82  * design.  Software which uses the API (device drivers, basically)
     83  * shouldn't notice any difference.
     84  *
     85  * Many thanks to Matt Thomas for providing the information necessary
     86  * to implement this interface.
     87  */
     88 
     89 #ifdef _KERNEL
     90 
     91 #include <sys/queue.h>
     92 
     93 /*
     94  * Driver callbacks for media status and change requests.
     95  */
     96 typedef	int (*ifm_change_cb_t) __P((struct ifnet *ifp));
     97 typedef	void (*ifm_stat_cb_t) __P((struct ifnet *ifp, struct ifmediareq *req));
     98 
     99 /*
    100  * In-kernel representation of a single supported media type.
    101  */
    102 struct ifmedia_entry {
    103 	LIST_ENTRY(ifmedia_entry) ifm_list;
    104 	int	ifm_media;	/* description of this media attachment */
    105 	int	ifm_data;	/* for driver-specific use */
    106 	void	*ifm_aux;	/* for driver-specific use */
    107 };
    108 
    109 /*
    110  * One of these goes into a network interface's softc structure.
    111  * It is used to keep general media state.
    112  */
    113 struct ifmedia {
    114 	int	ifm_mask;	/* mask of changes we don't care about */
    115 	int	ifm_media;	/* current user-set media word */
    116 	struct ifmedia_entry *ifm_cur;	/* currently selected media */
    117 	LIST_HEAD(, ifmedia_entry) ifm_list; /* list of all supported media */
    118 	ifm_change_cb_t	ifm_change;	/* media change driver callback */
    119 	ifm_stat_cb_t	ifm_status;	/* media status driver callback */
    120 };
    121 
    122 /* Initialize an interface's struct if_media field. */
    123 void	ifmedia_init __P((struct ifmedia *ifm, int dontcare_mask,
    124 	    ifm_change_cb_t change_callback, ifm_stat_cb_t status_callback));
    125 
    126 /* Add one supported medium to a struct ifmedia. */
    127 void	ifmedia_add __P((struct ifmedia *ifm, int mword, int data, void *aux));
    128 
    129 /* Add an array (of ifmedia_entry) media to a struct ifmedia. */
    130 void	ifmedia_list_add(struct ifmedia *mp, struct ifmedia_entry *lp,
    131 	    int count);
    132 
    133 /* Set default media type on initialization. */
    134 void	ifmedia_set __P((struct ifmedia *ifm, int mword));
    135 
    136 /* Common ioctl function for getting/setting media, called by driver. */
    137 int	ifmedia_ioctl __P((struct ifnet *ifp, struct ifreq *ifr,
    138 	    struct ifmedia *ifm, u_long cmd));
    139 
    140 #endif /*_KERNEL */
    141 
    142 /*
    143  * if_media Options word:
    144  *	Bits	Use
    145  *	----	-------
    146  *	0-3	Media variant
    147  *	4	RFU
    148  *	5-7	Media type
    149  *	8-15	Type specific options
    150  *	16-19	RFU
    151  *	20-27	Shared (global) options
    152  *	28-31	Instance
    153  */
    154 
    155 /*
    156  * Ethernet
    157  */
    158 #define IFM_ETHER	0x00000020
    159 #define	IFM_10_T	3		/* 10BaseT - RJ45 */
    160 #define	IFM_10_2	4		/* 10Base2 - Thinnet */
    161 #define	IFM_10_5	5		/* 10Base5 - AUI */
    162 #define	IFM_100_TX	6		/* 100BaseTX - RJ45 */
    163 #define	IFM_100_FX	7		/* 100BaseFX - Fiber */
    164 #define	IFM_100_T4	8		/* 100BaseT4 - 4 pair cat 3 */
    165 #define	IFM_100_VG	9		/* 100VG-AnyLAN */
    166 #define	IFM_100_T2	10		/* 100BaseT2 */
    167 #define	IFM_1000_FX	11		/* 1000BaseFX - gigabit over fiber */
    168 #define	IFM_10_STP	12		/* 10BaseT over shielded TP */
    169 #define	IFM_10_FL	13		/* 10BaseFL - Fiber */
    170 
    171 /*
    172  * Token ring
    173  */
    174 #define	IFM_TOKEN	0x00000040
    175 #define	IFM_TOK_STP4	3		/* Shielded twisted pair 4m - DB9 */
    176 #define	IFM_TOK_STP16	4		/* Shielded twisted pair 16m - DB9 */
    177 #define	IFM_TOK_UTP4	5		/* Unshielded twisted pair 4m - RJ45 */
    178 #define	IFM_TOK_UTP16	6		/* Unshielded twisted pair 16m - RJ45 */
    179 #define	IFM_TOK_ETR	0x00000200	/* Early token release */
    180 #define	IFM_TOK_SRCRT	0x00000400	/* Enable source routing features */
    181 #define	IFM_TOK_ALLR	0x00000800	/* All routes / Single route bcast */
    182 
    183 /*
    184  * FDDI
    185  */
    186 #define	IFM_FDDI	0x00000060
    187 #define	IFM_FDDI_SMF	3		/* Single-mode fiber */
    188 #define	IFM_FDDI_MMF	4		/* Multi-mode fiber */
    189 #define IFM_FDDI_UTP	5		/* CDDI / UTP */
    190 #define IFM_FDDI_DA	0x00000100	/* Dual attach / single attach */
    191 
    192 /*
    193  * Shared media sub-types
    194  */
    195 #define	IFM_AUTO	0		/* Autoselect best media */
    196 #define	IFM_MANUAL	1		/* Jumper/dipswitch selects media */
    197 #define	IFM_NONE	2		/* Deselect all media */
    198 
    199 /*
    200  * Shared options
    201  */
    202 #define IFM_FDX		0x00100000	/* Force full duplex */
    203 #define	IFM_HDX		0x00200000	/* Force half duplex */
    204 #define IFM_FLAG0	0x01000000	/* Driver defined flag */
    205 #define IFM_FLAG1	0x02000000	/* Driver defined flag */
    206 #define IFM_FLAG2	0x04000000	/* Driver defined flag */
    207 #define	IFM_LOOP	0x08000000	/* Put hardware in loopback */
    208 
    209 /*
    210  * Masks
    211  */
    212 #define	IFM_NMASK	0x000000e0	/* Network type */
    213 #define	IFM_TMASK	0x0000000f	/* Media sub-type */
    214 #define	IFM_IMASK	0xf0000000	/* Instance */
    215 #define	IFM_ISHIFT	28		/* Instance shift */
    216 #define	IFM_OMASK	0x0000ff00	/* Type specific options */
    217 #define	IFM_GMASK	0x0ff00000	/* Global options */
    218 
    219 /*
    220  * Status bits
    221  */
    222 #define	IFM_AVALID	0x00000001	/* Active bit valid */
    223 #define	IFM_ACTIVE	0x00000002	/* Interface attached to working net */
    224 
    225 /*
    226  * Macros to extract various bits of information from the media word.
    227  */
    228 #define	IFM_TYPE(x)	((x) & IFM_NMASK)
    229 #define	IFM_SUBTYPE(x)	((x) & IFM_TMASK)
    230 #define	IFM_INST(x)	(((x) & IFM_IMASK) >> IFM_ISHIFT)
    231 #define	IFM_OPTIONS(x)	((x) & (IFM_OMASK|IFM_GMASK))
    232 
    233 /*
    234  * NetBSD extension not defined in the BSDI API.  This is used in various
    235  * places to get the canonical description for a given type/subtype.
    236  *
    237  * In the subtype and mediaopt descriptions, the valid TYPE bits are OR'd
    238  * in to indicate which TYPE the subtype/option corresponds to.  If no
    239  * TYPE is present, it is a shared media/mediaopt.
    240  *
    241  * Note that these are parsed case-insensitive.
    242  *
    243  * Order is important.  The first matching entry is the canonical name
    244  * for a media type; subsequent matches are aliases.
    245  */
    246 struct ifmedia_description {
    247 	int	ifmt_word;		/* word value; may be masked */
    248 	const char *ifmt_string;	/* description */
    249 };
    250 
    251 #define	IFM_TYPE_DESCRIPTIONS {						\
    252 	{ IFM_ETHER,			"Ethernet" },			\
    253 	{ IFM_ETHER,			"ether" },			\
    254 	{ IFM_TOKEN,			"TokenRing" },			\
    255 	{ IFM_TOKEN,			"token" },			\
    256 	{ IFM_FDDI,			"FDDI" },			\
    257 	{ 0, NULL },							\
    258 }
    259 
    260 #define	IFM_TYPE_MATCH(dt, t)						\
    261 	(IFM_TYPE((dt)) == 0 || IFM_TYPE((dt)) == IFM_TYPE((t)))
    262 
    263 #define	IFM_SUBTYPE_DESCRIPTIONS {					\
    264 	{ IFM_AUTO,			"autoselect" },			\
    265 	{ IFM_AUTO,			"auto" },			\
    266 	{ IFM_MANUAL,			"manual" },			\
    267 	{ IFM_NONE,			"none" },			\
    268 									\
    269 	{ IFM_ETHER|IFM_10_T,		"10baseT" },			\
    270 	{ IFM_ETHER|IFM_10_T,		"UTP" },			\
    271 	{ IFM_ETHER|IFM_10_T,		"10UTP" },			\
    272 	{ IFM_ETHER|IFM_10_2,		"10base2" },			\
    273 	{ IFM_ETHER|IFM_10_2,		"BNC" },			\
    274 	{ IFM_ETHER|IFM_10_2,		"10BNC" },			\
    275 	{ IFM_ETHER|IFM_10_5,		"10base5" },			\
    276 	{ IFM_ETHER|IFM_10_5,		"AUI" },			\
    277 	{ IFM_ETHER|IFM_10_5,		"10AUI" },			\
    278 	{ IFM_ETHER|IFM_100_TX,		"100baseTX" },			\
    279 	{ IFM_ETHER|IFM_100_TX,		"100TX" },			\
    280 	{ IFM_ETHER|IFM_100_FX,		"100baseFX" },			\
    281 	{ IFM_ETHER|IFM_100_FX,		"100FX" },			\
    282 	{ IFM_ETHER|IFM_100_T4,		"100baseT4" },			\
    283 	{ IFM_ETHER|IFM_100_T4,		"100T4" },			\
    284 	{ IFM_ETHER|IFM_100_VG,		"100baseVG" },			\
    285 	{ IFM_ETHER|IFM_100_VG,		"100VG" },			\
    286 	{ IFM_ETHER|IFM_100_T2,		"100baseT2" },			\
    287 	{ IFM_ETHER|IFM_100_T2,		"100T2" },			\
    288 	{ IFM_ETHER|IFM_1000_FX,	"1000baseFX" },			\
    289 	{ IFM_ETHER|IFM_1000_FX,	"1000FX" },			\
    290 	{ IFM_ETHER|IFM_10_STP,		"10baseSTP" },			\
    291 	{ IFM_ETHER|IFM_10_STP,		"STP" },			\
    292 	{ IFM_ETHER|IFM_10_STP,		"10STP" },			\
    293 	{ IFM_ETHER|IFM_10_FL,		"10baseFL" },			\
    294 	{ IFM_ETHER|IFM_10_FL,		"FL" },				\
    295 	{ IFM_ETHER|IFM_10_FL,		"10FL" },			\
    296 									\
    297 	{ IFM_TOKEN|IFM_TOK_STP4,	"DB9/4Mbit" },			\
    298 	{ IFM_TOKEN|IFM_TOK_STP4,	"4STP" },			\
    299 	{ IFM_TOKEN|IFM_TOK_STP16,	"DB9/16Mbit" },			\
    300 	{ IFM_TOKEN|IFM_TOK_STP16,	"16STP" },			\
    301 	{ IFM_TOKEN|IFM_TOK_UTP4,	"UTP/4Mbit" },			\
    302 	{ IFM_TOKEN|IFM_TOK_UTP4,	"4UTP" },			\
    303 	{ IFM_TOKEN|IFM_TOK_UTP16,	"UTP/16Mbit" },			\
    304 	{ IFM_TOKEN|IFM_TOK_UTP16,	"16UTP" },			\
    305 									\
    306 	{ IFM_FDDI|IFM_FDDI_SMF,	"Single-mode" },		\
    307 	{ IFM_FDDI|IFM_FDDI_SMF,	"SMF" },			\
    308 	{ IFM_FDDI|IFM_FDDI_MMF,	"Multi-mode" },			\
    309 	{ IFM_FDDI|IFM_FDDI_MMF,	"MMF" },			\
    310 	{ IFM_FDDI|IFM_FDDI_UTP,	"UTP" },			\
    311 	{ IFM_FDDI|IFM_FDDI_UTP,	"CDDI" },			\
    312 									\
    313 	{ 0, NULL },							\
    314 }
    315 
    316 #define	IFM_OPTION_DESCRIPTIONS {					\
    317 	{ IFM_FDX,			"full-duplex" },		\
    318 	{ IFM_FDX,			"fdx" },			\
    319 	{ IFM_HDX,			"half-duplex" },		\
    320 	{ IFM_HDX,			"hdx" },			\
    321 	{ IFM_FLAG0,			"flag0" },			\
    322 	{ IFM_FLAG1,			"flag1" },			\
    323 	{ IFM_FLAG2,			"flag2" },			\
    324 	{ IFM_LOOP,			"loopback" },			\
    325 	{ IFM_LOOP,			"hw-loopback"},			\
    326 	{ IFM_LOOP,			"loop" },			\
    327 									\
    328 	{ IFM_TOKEN|IFM_TOK_ETR,	"EarlyTokenRelease" },		\
    329 	{ IFM_TOKEN|IFM_TOK_ETR,	"ETR" },			\
    330 	{ IFM_TOKEN|IFM_TOK_SRCRT,	"SourceRouting" },		\
    331 	{ IFM_TOKEN|IFM_TOK_SRCRT,	"SRCRT" },			\
    332 	{ IFM_TOKEN|IFM_TOK_ALLR,	"AllRoutes" },			\
    333 	{ IFM_TOKEN|IFM_TOK_ALLR,	"ALLR" },			\
    334 									\
    335 	{ IFM_FDDI|IFM_FDDI_DA,		"dual-attach" },		\
    336 	{ IFM_FDDI|IFM_FDDI_DA,		"das" },			\
    337 									\
    338 	{ 0, NULL },							\
    339 }
    340 
    341 #endif	/* _NET_IF_MEDIA_H_ */
    342