projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 872ce9ca | 1 | /* if_vv.h 4.2 82/08/01 */ |
| 41b6ae6c SL |
2 | /* |
| 3 | * Local network header for V2LNI Ring | |
| 4 | * This is arbitrated by "V2LNI-PEOPLE@MIT-MC" | |
| 5 | * (aka Joel N. Chiappa) | |
| 6 | */ | |
| 41b6ae6c SL |
7 | struct vv_header { |
| 8 | /* the first two fields are required by the hardware */ | |
| 9 | u_char vh_dhost; /* destination address */ | |
| 10 | u_char vh_shost; /* source address */ | |
| 11 | /* the next three fields are the local network header */ | |
| 12 | u_char vh_version; /* header version */ | |
| 13 | u_char vh_type; /* packet type => protocol number */ | |
| 14 | short vh_info; /* protocol-specific information */ | |
| 15 | }; | |
| 16 | ||
| 17 | #define RING_VERSION 1 /* current version of v2lni header */ | |
| 18 | ||
| 19 | /* | |
| 20 | * Packet types (protocol numbers) in v2lni header | |
| 872ce9ca SL |
21 | * |
| 22 | * NOTE: the Trailer format stuff is lifted right out of | |
| 23 | * the other drivers. It will be changed to take advantage | |
| 24 | * of the fields in the vv_header, but the packet throw-away | |
| 25 | * code must first be improved. | |
| 41b6ae6c SL |
26 | */ |
| 27 | #define RING_IP 1 | |
| 28 | #define RING_IPTrailer 2 | |
| 872ce9ca | 29 | #define RING_IPNTrailer 16 |
| 41b6ae6c SL |
30 | #define RING_WHOAMI 0xa5 /* insure some bit transitions */ |
| 31 | ||
| 32 | #define VV_BROADCAST 0 /* hardware-defined broadcast address */ | |
| 33 | ||
| 34 | /* | |
| 35 | * Proteon V2LNI Hardware definitions | |
| 36 | * register bit definitions - new style | |
| 37 | */ | |
| 38 | #define VV_ENB 01 /* Enable Operation */ | |
| 39 | #define VV_DEN 02 /* Enable DMA */ | |
| 40 | #define VV_HEN 04 /* Host Relay Enable (Rcv) */ | |
| 41 | #define VV_CPB 04 /* Clear Packet Buffer (Xmit) */ | |
| 42 | #define VV_STE 010 /* Self Test Enable (Rcv) */ | |
| 43 | #define VV_UT1 010 /* Unused (Xmit) */ | |
| 44 | #define VV_LPB 020 /* Modem Disable (Rcv) */ | |
| 45 | #define VV_INR 020 /* Initialize Ring (Xmit) */ | |
| 46 | #define VV_RST 040 /* Reset */ | |
| 47 | #define VV_IEN 0100 /* Interrupt Enable */ | |
| 48 | #define VV_RDY 0200 /* Done */ | |
| 49 | #define VV_DPR 0400 /* Data Present (Rcv) */ | |
| 50 | #define VV_RFS 0400 /* Refused (Xmit) */ | |
| 51 | #define VV_NXM 01000 /* Non Existent Memory */ | |
| 52 | #define VV_OVR 02000 /* Overrun */ | |
| 53 | #define VV_ODB 04000 /* Odd Byte (Achtung, mein Fuehrer) (Rcv) */ | |
| 54 | #define VV_UT2 04000 /* Unused (Xmit) */ | |
| 55 | #define VV_LDE 010000 /* Link Data Error (Rcv) */ | |
| 56 | #define VV_OPT 010000 /* Output Timeout (Xmit) */ | |
| 57 | #define VV_NOK 020000 /* Ring Not OK */ | |
| 58 | #define VV_BDF 040000 /* Bad Format in Operation */ | |
| 59 | #define VV_NIR 0100000 /* Not in Ring */ | |
| 60 | ||
| 61 | #define VVXERR (VV_NXM|VV_OVR|VV_OPT|VV_BDF) /* Xmit errs */ | |
| 62 | #define VVRERR (VV_NXM|VV_OVR|VV_ODB|VV_BDF) /* Rcv errs */ | |
| 63 | #define VVFE (VV_NXM|VV_OVR) /* Fatal errors */ | |
| 64 | ||
| 65 | #define VV_IBITS \ | |
| 66 | "\10\20NIR\17BDF\16NOK\15LDE\14ODB\13OVR\12NXM\11DPR\10RDY\7IEN\6RST\5LPB\4STE\3HEN\2DEN\1ENB" | |
| 67 | ||
| 68 | #define VV_OBITS \ | |
| 69 | "\10\20NIR\17BDF\16NOK\15OPT\13OVR\12NXM\11RFS\10RDY\7IEN\6RST\5INR\3HEN\2DEN\1ENB" | |
| 70 | ||
| 71 | /* device registers */ | |
| 72 | struct vvreg { | |
| 73 | short vvicsr; /* input csr */ | |
| 74 | u_short vviwc; /* input word count */ | |
| 75 | u_short vviba; /* input addr lo */ | |
| 76 | u_short vviea; /* input addr hi */ | |
| 77 | short vvocsr; /* output csr */ | |
| 78 | u_short vvowc; /* output word count */ | |
| 79 | u_short vvoba; /* output addr lo */ | |
| 80 | u_short vvoea; /* output addr hi */ | |
| 81 | }; | |
| 82 | ||
| 83 | #define VVRETRY 7 |