1*7639Ssam /* if_vv.h 4.2 82/08/01 */ 27025Ssam /* 37025Ssam * Local network header for V2LNI Ring 47025Ssam * This is arbitrated by "V2LNI-PEOPLE@MIT-MC" 57025Ssam * (aka Joel N. Chiappa) 67025Ssam */ 77025Ssam struct vv_header { 87025Ssam /* the first two fields are required by the hardware */ 97025Ssam u_char vh_dhost; /* destination address */ 107025Ssam u_char vh_shost; /* source address */ 117025Ssam /* the next three fields are the local network header */ 127025Ssam u_char vh_version; /* header version */ 137025Ssam u_char vh_type; /* packet type => protocol number */ 147025Ssam short vh_info; /* protocol-specific information */ 157025Ssam }; 167025Ssam 177025Ssam #define RING_VERSION 1 /* current version of v2lni header */ 187025Ssam 197025Ssam /* 207025Ssam * Packet types (protocol numbers) in v2lni header 21*7639Ssam * 22*7639Ssam * NOTE: the Trailer format stuff is lifted right out of 23*7639Ssam * the other drivers. It will be changed to take advantage 24*7639Ssam * of the fields in the vv_header, but the packet throw-away 25*7639Ssam * code must first be improved. 267025Ssam */ 277025Ssam #define RING_IP 1 287025Ssam #define RING_IPTrailer 2 29*7639Ssam #define RING_IPNTrailer 16 307025Ssam #define RING_WHOAMI 0xa5 /* insure some bit transitions */ 317025Ssam 327025Ssam #define VV_BROADCAST 0 /* hardware-defined broadcast address */ 337025Ssam 347025Ssam /* 357025Ssam * Proteon V2LNI Hardware definitions 367025Ssam * register bit definitions - new style 377025Ssam */ 387025Ssam #define VV_ENB 01 /* Enable Operation */ 397025Ssam #define VV_DEN 02 /* Enable DMA */ 407025Ssam #define VV_HEN 04 /* Host Relay Enable (Rcv) */ 417025Ssam #define VV_CPB 04 /* Clear Packet Buffer (Xmit) */ 427025Ssam #define VV_STE 010 /* Self Test Enable (Rcv) */ 437025Ssam #define VV_UT1 010 /* Unused (Xmit) */ 447025Ssam #define VV_LPB 020 /* Modem Disable (Rcv) */ 457025Ssam #define VV_INR 020 /* Initialize Ring (Xmit) */ 467025Ssam #define VV_RST 040 /* Reset */ 477025Ssam #define VV_IEN 0100 /* Interrupt Enable */ 487025Ssam #define VV_RDY 0200 /* Done */ 497025Ssam #define VV_DPR 0400 /* Data Present (Rcv) */ 507025Ssam #define VV_RFS 0400 /* Refused (Xmit) */ 517025Ssam #define VV_NXM 01000 /* Non Existent Memory */ 527025Ssam #define VV_OVR 02000 /* Overrun */ 537025Ssam #define VV_ODB 04000 /* Odd Byte (Achtung, mein Fuehrer) (Rcv) */ 547025Ssam #define VV_UT2 04000 /* Unused (Xmit) */ 557025Ssam #define VV_LDE 010000 /* Link Data Error (Rcv) */ 567025Ssam #define VV_OPT 010000 /* Output Timeout (Xmit) */ 577025Ssam #define VV_NOK 020000 /* Ring Not OK */ 587025Ssam #define VV_BDF 040000 /* Bad Format in Operation */ 597025Ssam #define VV_NIR 0100000 /* Not in Ring */ 607025Ssam 617025Ssam #define VVXERR (VV_NXM|VV_OVR|VV_OPT|VV_BDF) /* Xmit errs */ 627025Ssam #define VVRERR (VV_NXM|VV_OVR|VV_ODB|VV_BDF) /* Rcv errs */ 637025Ssam #define VVFE (VV_NXM|VV_OVR) /* Fatal errors */ 647025Ssam 657025Ssam #define VV_IBITS \ 667025Ssam "\10\20NIR\17BDF\16NOK\15LDE\14ODB\13OVR\12NXM\11DPR\10RDY\7IEN\6RST\5LPB\4STE\3HEN\2DEN\1ENB" 677025Ssam 687025Ssam #define VV_OBITS \ 697025Ssam "\10\20NIR\17BDF\16NOK\15OPT\13OVR\12NXM\11RFS\10RDY\7IEN\6RST\5INR\3HEN\2DEN\1ENB" 707025Ssam 717025Ssam /* device registers */ 727025Ssam struct vvreg { 737025Ssam short vvicsr; /* input csr */ 747025Ssam u_short vviwc; /* input word count */ 757025Ssam u_short vviba; /* input addr lo */ 767025Ssam u_short vviea; /* input addr hi */ 777025Ssam short vvocsr; /* output csr */ 787025Ssam u_short vvowc; /* output word count */ 797025Ssam u_short vvoba; /* output addr lo */ 807025Ssam u_short vvoea; /* output addr hi */ 817025Ssam }; 827025Ssam 837025Ssam #define VVRETRY 7 84