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if_media.h revision 1.4
      1 /*	$NetBSD: if_media.h,v 1.4 1998/01/30 01:24:40 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997
      5  *	Jonathan Stone and Jason R. Thorpe.  All rights reserved.
      6  *
      7  * This software is derived from information provided by Matt Thomas.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by Jonathan Stone
     20  *	and Jason R. Thorpe for the NetBSD Project.
     21  * 4. The names of the authors may not be used to endorse or promote products
     22  *    derived from this software without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
     25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     27  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     29  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     30  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     31  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     32  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  */
     36 
     37 #ifndef _NET_IF_MEDIA_H_
     38 #define _NET_IF_MEDIA_H_
     39 
     40 /*
     41  * Prototypes and definitions for BSD/OS-compatible network interface
     42  * media selection.
     43  *
     44  * Where it is safe to do so, this code strays slightly from the BSD/OS
     45  * design.  Software which uses the API (device drivers, basically)
     46  * shouldn't notice any difference.
     47  *
     48  * Many thanks to Matt Thomas for providing the information necessary
     49  * to implement this interface.
     50  */
     51 
     52 #ifdef _KERNEL
     53 
     54 #include <sys/queue.h>
     55 
     56 /*
     57  * Driver callbacks for media status and change requests.
     58  */
     59 typedef	int (*ifm_change_cb_t) __P((struct ifnet *ifp));
     60 typedef	void (*ifm_stat_cb_t) __P((struct ifnet *ifp, struct ifmediareq *req));
     61 
     62 /*
     63  * In-kernel representation of a single supported media type.
     64  */
     65 struct ifmedia_entry {
     66 	LIST_ENTRY(ifmedia_entry) ifm_list;
     67 	int	ifm_media;	/* description of this media attachment */
     68 	int	ifm_data;	/* for driver-specific use */
     69 	void	*ifm_aux;	/* for driver-specific use */
     70 };
     71 
     72 /*
     73  * One of these goes into a network interface's softc structure.
     74  * It is used to keep general media state.
     75  */
     76 struct ifmedia {
     77 	int	ifm_mask;	/* mask of changes we don't care about */
     78 	int	ifm_media;	/* current user-set media word */
     79 	struct ifmedia_entry *ifm_cur;	/* currently selected media */
     80 	LIST_HEAD(, ifmedia_entry) ifm_list; /* list of all supported media */
     81 	ifm_change_cb_t	ifm_change;	/* media change driver callback */
     82 	ifm_stat_cb_t	ifm_status;	/* media status driver callback */
     83 };
     84 
     85 /* Initialize an interface's struct if_media field. */
     86 void	ifmedia_init __P((struct ifmedia *ifm, int dontcare_mask,
     87 	    ifm_change_cb_t change_callback, ifm_stat_cb_t status_callback));
     88 
     89 /* Add one supported medium to a struct ifmedia. */
     90 void	ifmedia_add __P((struct ifmedia *ifm, int mword, int data, void *aux));
     91 
     92 /* Add an array (of ifmedia_entry) media to a struct ifmedia. */
     93 void	ifmedia_list_add(struct ifmedia *mp, struct ifmedia_entry *lp,
     94 	    int count);
     95 
     96 /* Set default media type on initialization. */
     97 void	ifmedia_set __P((struct ifmedia *ifm, int mword));
     98 
     99 /* Common ioctl function for getting/setting media, called by driver. */
    100 int	ifmedia_ioctl __P((struct ifnet *ifp, struct ifreq *ifr,
    101 	    struct ifmedia *ifm, u_long cmd));
    102 
    103 #endif /*_KERNEL */
    104 
    105 /*
    106  * if_media Options word:
    107  *	Bits	Use
    108  *	----	-------
    109  *	0-3	Media variant
    110  *	4	RFU
    111  *	5-7	Media type
    112  *	8-15	Type specific options
    113  *	16-19	RFU
    114  *	20-27	Shared (global) options
    115  *	28-31	Instance
    116  */
    117 
    118 /*
    119  * Ethernet
    120  */
    121 #define IFM_ETHER	0x00000020
    122 #define	IFM_10_T	3		/* 10BaseT - RJ45 */
    123 #define	IFM_10_2	4		/* 10Base2 - Thinnet */
    124 #define	IFM_10_5	5		/* 10Base5 - AUI */
    125 #define	IFM_100_TX	6		/* 100BaseTX - RJ45 */
    126 #define	IFM_100_FX	7		/* 100BaseFX - Fiber */
    127 #define	IFM_100_T4	8		/* 100BaseT4 - 4 pair cat 3 */
    128 #define	IFM_100_VG	9		/* 100VG-AnyLAN */
    129 #define	IFM_100_T2	10		/* 100BaseT2 */
    130 #define	IFM_1000_FX	11		/* 1000BaseFX - gigabit over fiber */
    131 #define	IFM_10_STP	12		/* 10BaseT over shielded TP */
    132 
    133 /*
    134  * Token ring
    135  */
    136 #define	IFM_TOKEN	0x00000040
    137 #define	IFM_TOK_STP4	3		/* Shielded twisted pair 4m - DB9 */
    138 #define	IFM_TOK_STP16	4		/* Shielded twisted pair 16m - DB9 */
    139 #define	IFM_TOK_UTP4	5		/* Unshielded twisted pair 4m - RJ45 */
    140 #define	IFM_TOK_UTP16	6		/* Unshielded twisted pair 16m - RJ45 */
    141 #define	IFM_TOK_ETR	0x00000200	/* Early token release */
    142 #define	IFM_TOK_SRCRT	0x00000400	/* Enable source routing features */
    143 #define	IFM_TOK_ALLR	0x00000800	/* All routes / Single route bcast */
    144 
    145 /*
    146  * FDDI
    147  */
    148 #define	IFM_FDDI	0x00000060
    149 #define	IFM_FDDI_SMF	3		/* Single-mode fiber */
    150 #define	IFM_FDDI_MMF	4		/* Multi-mode fiber */
    151 #define IFM_FDDI_UTP	5		/* CDDI / UTP */
    152 #define IFM_FDDI_DA	0x00000100	/* Dual attach / single attach */
    153 
    154 /*
    155  * Shared media sub-types
    156  */
    157 #define	IFM_AUTO	0		/* Autoselect best media */
    158 #define	IFM_MANUAL	1		/* Jumper/dipswitch selects media */
    159 #define	IFM_NONE	2		/* Deselect all media */
    160 
    161 /*
    162  * Shared options
    163  */
    164 #define IFM_FDX		0x00100000	/* Force full duplex */
    165 #define	IFM_HDX		0x00200000	/* Force half duplex */
    166 #define IFM_FLAG0	0x01000000	/* Driver defined flag */
    167 #define IFM_FLAG1	0x02000000	/* Driver defined flag */
    168 #define IFM_FLAG2	0x04000000	/* Driver defined flag */
    169 #define	IFM_LOOP	0x08000000	/* Put hardware in loopback */
    170 
    171 /*
    172  * Masks
    173  */
    174 #define	IFM_NMASK	0x000000e0	/* Network type */
    175 #define	IFM_TMASK	0x0000000f	/* Media sub-type */
    176 #define	IFM_IMASK	0xf0000000	/* Instance */
    177 #define	IFM_ISHIFT	28		/* Instance shift */
    178 #define	IFM_OMASK	0x0000ff00	/* Type specific options */
    179 #define	IFM_GMASK	0x0ff00000	/* Global options */
    180 
    181 /*
    182  * Status bits
    183  */
    184 #define	IFM_AVALID	0x00000001	/* Active bit valid */
    185 #define	IFM_ACTIVE	0x00000002	/* Interface attached to working net */
    186 
    187 /*
    188  * Macros to extract various bits of information from the media word.
    189  */
    190 #define	IFM_TYPE(x)	((x) & IFM_NMASK)
    191 #define	IFM_SUBTYPE(x)	((x) & IFM_TMASK)
    192 #define	IFM_INST(x)	(((x) & IFM_IMASK) >> IFM_ISHIFT)
    193 
    194 /*
    195  * NetBSD extension not defined in the BSDI API.  This is used in various
    196  * places to get the canonical description for a given type/subtype.
    197  *
    198  * NOTE: all but the top-level type descriptions must contain NO whitespace!
    199  * Otherwise, parsing these in ifconfig(8) would be a nightmare.
    200  */
    201 struct ifmedia_description {
    202 	int	ifmt_word;		/* word value; may be masked */
    203 	const char *ifmt_string;	/* description */
    204 };
    205 
    206 #define	IFM_TYPE_DESCRIPTIONS {						\
    207 	{ IFM_ETHER,	"Ethernet" },					\
    208 	{ IFM_TOKEN,	"Token ring" },					\
    209 	{ IFM_FDDI,	"FDDI" },					\
    210 	{ 0, NULL },							\
    211 }
    212 
    213 #define	IFM_SUBTYPE_ETHERNET_DESCRIPTIONS {				\
    214 	{ IFM_10_T,	"10baseT/UTP" },				\
    215 	{ IFM_10_2,	"10base2/BNC" },				\
    216 	{ IFM_10_5,	"10base5/AUI" },				\
    217 	{ IFM_100_TX,	"100baseTX" },					\
    218 	{ IFM_100_FX,	"100baseFX" },					\
    219 	{ IFM_100_T4,	"100baseT4" },					\
    220 	{ IFM_100_VG,	"100baseVG" },					\
    221 	{ IFM_100_T2,	"100baseT2" },					\
    222 	{ IFM_1000_FX,	"1000baseFX" },					\
    223 	{ IFM_10_STP,	"10baseT/STP" },				\
    224 	{ 0, NULL },							\
    225 }
    226 
    227 #define	IFM_SUBTYPE_ETHERNET_ALIASES {					\
    228 	{ IFM_10_T,	"UTP" },					\
    229 	{ IFM_10_T,	"10UTP" },					\
    230 	{ IFM_10_2,	"BNC" },					\
    231 	{ IFM_10_2,	"10BNC" },					\
    232 	{ IFM_10_5,	"AUI" },					\
    233 	{ IFM_10_5,	"10AUI" },					\
    234 	{ IFM_100_TX,	"100TX" },					\
    235 	{ IFM_100_FX,	"100FX" },					\
    236 	{ IFM_100_T4,	"100T4" },					\
    237 	{ IFM_100_VG,	"100VG" },					\
    238 	{ IFM_100_T2,	"100T2" },					\
    239 	{ IFM_1000_FX,	"1000FX" },					\
    240 	{ IFM_10_STP,	"STP", }					\
    241 	{ 0, NULL },							\
    242 }
    243 
    244 #define	IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS {			\
    245 	{ 0, NULL },							\
    246 }
    247 
    248 #define	IFM_SUBTYPE_TOKENRING_DESCRIPTIONS {				\
    249 	{ IFM_TOK_STP4,	"DB9/4Mbit" },					\
    250 	{ IFM_TOK_STP16, "DB9/16Mbit" },				\
    251 	{ IFM_TOK_UTP4,	"UTP/4Mbit" },					\
    252 	{ IFM_TOK_UTP16, "UTP/16Mbit" },				\
    253 	{ 0, NULL },							\
    254 }
    255 
    256 #define	IFM_SUBTYPE_TOKENRING_ALIASES {					\
    257 	{ IFM_TOK_STP4,	"4STP" },					\
    258 	{ IFM_TOK_STP16, "16STP" },					\
    259 	{ IFM_TOK_UTP4,	"4UTP" },					\
    260 	{ IFM_TOK_UTP16, "16UTP" },					\
    261 	{ 0, NULL },							\
    262 }
    263 
    264 #define	IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS {			\
    265 	{ IFM_TOK_ETR,	"EarlyTokenRelease" },				\
    266 	{ IFM_TOK_SRCRT, "SourceRouting" },				\
    267 	{ IFM_TOK_ALLR,	"AllRoutes" },					\
    268 	{ 0, NULL },							\
    269 }
    270 
    271 #define	IFM_SUBTYPE_FDDI_DESCRIPTIONS {					\
    272 	{ IFM_FDDI_SMF, "Single-mode" },				\
    273 	{ IFM_FDDI_MMF, "Multi-mode" },					\
    274 	{ IFM_FDDI_UTP, "UTP" },					\
    275 	{ 0, NULL },							\
    276 }
    277 
    278 #define	IFM_SUBTYPE_FDDI_ALIASES {					\
    279 	{ IFM_FDDI_SMF,	"SMF" },					\
    280 	{ IFM_FDDI_MMF,	"MMF" },					\
    281 	{ IFM_FDDI_UTP,	"CDDI" },					\
    282 	{ 0, NULL },							\
    283 }
    284 
    285 #define	IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS {				\
    286 	{ IFM_FDDI_DA, "Dual-attach" },					\
    287 	{ 0, NULL },							\
    288 }
    289 
    290 #define	IFM_SUBTYPE_SHARED_DESCRIPTIONS {				\
    291 	{ IFM_AUTO,	"autoselect" },					\
    292 	{ IFM_MANUAL,	"manual" },					\
    293 	{ IFM_NONE,	"none" },					\
    294 	{ 0, NULL },							\
    295 }
    296 
    297 #define	IFM_SUBTYPE_SHARED_ALIASES {					\
    298 	{ IFM_AUTO,	"auto" },					\
    299 	{ 0, NULL },							\
    300 }
    301 
    302 #define	IFM_SHARED_OPTION_DESCRIPTIONS {				\
    303 	{ IFM_FDX,	"full-duplex" },				\
    304 	{ IFM_HDX,	"half-duplex" },				\
    305 	{ IFM_FLAG0,	"flag0" },					\
    306 	{ IFM_FLAG1,	"flag1" },					\
    307 	{ IFM_FLAG2,	"flag2" },					\
    308 	{ IFM_LOOP,	"hw-loopback" },				\
    309 	{ 0, NULL },							\
    310 }
    311 
    312 #endif	/* _NET_IF_MEDIA_H_ */
    313