projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 26415b64 TL |
1 | struct pack { |
| 2 | short p_state; /* line state */ | |
| 3 | short p_bits; /* mask for getepack */ | |
| 4 | short p_psize; /* packet size */ | |
| 5 | short p_icount; /* input byte count */ | |
| 6 | char p_ostate; /* output state */ | |
| 7 | char p_istate; /* input state */ | |
| 8 | char p_msgs; /* # cntl msgs sent */ | |
| 9 | char p_window; /* window size */ | |
| 10 | char p_iseq; /* input SEQ byte */ | |
| 11 | char p_oseq; /* output SEQ byte */ | |
| 12 | char p_msg; /* control msg */ | |
| 13 | char p_msg2; /* extra msg bits */ | |
| 14 | char p_ps,p_pr; /* last packet sent, recv'd */ | |
| 15 | char p_rps,p_rpr; /* remote (received) ps and pr */ | |
| 16 | char p_nxtps; /* next output seq number */ | |
| 17 | char p_nxtpr; /* expected input seq number */ | |
| 18 | char p_prcopy; /* oldest received packet in kernel */ | |
| 19 | char p_pscopy; /* newest output packet */ | |
| 20 | char *p_input; /* points into input buffer */ | |
| 21 | char p_iobuf[6]; /* cntl packet buffer */ | |
| 22 | char *p_ob[8]; /* output buffers */ | |
| 23 | char *p_ib[8]; /* input buffers */ | |
| 24 | char p_bstate[8]; /* output buffer status */ | |
| 25 | char p_cstate[8]; /* input buffer status */ | |
| 26 | short p_checks[8]; | |
| 27 | short p_rcheck; | |
| 28 | struct tty *p_ttyp; | |
| 29 | int p_timer; | |
| 30 | int xcount,rcount; | |
| 31 | }; | |
| 32 | #define NPSTRUCT (1+(sizeof(struct pack))/64) | |
| 33 | #define NPERBUF (8/NPSTRUCT) | |
| 34 | #define CHECK 0125252 | |
| 35 | ||
| 36 | int npbits; | |
| 37 | ||
| 38 | /* | |
| 39 | * driver state | |
| 40 | */ | |
| 41 | #define DEAD 0 | |
| 42 | #define INITa 1 | |
| 43 | #define INITb 2 | |
| 44 | #define ISINIT 3 | |
| 45 | #define LIVE 4 | |
| 46 | #define RESYNC 010 | |
| 47 | #define DOWN 020 | |
| 48 | #define RREJ 040 | |
| 49 | #define RXMIT 0100 | |
| 50 | #define PDEBUG 0200 | |
| 51 | #define DRAINO 0400 | |
| 52 | #define WAITO 01000 | |
| 53 | ||
| 54 | /* | |
| 55 | * input side states | |
| 56 | */ | |
| 57 | #define P_IDLE 1 | |
| 58 | #define P_SCAN 2 | |
| 59 | #define P_SEQ1 3 | |
| 60 | #define P_PACK 4 | |
| 61 | #define P_CHK1 5 | |
| 62 | #define P_CHK2 6 | |
| 63 | #define P_SEQ2 7 | |
| 64 | #define P_FLUSH 8 | |
| 65 | ||
| 66 | #define SYN 026 | |
| 67 | ||
| 68 | /* | |
| 69 | * output side states | |
| 70 | */ | |
| 71 | #define T_IDLE 0 | |
| 72 | #define T_READY 1 | |
| 73 | #define T_HDR 2 | |
| 74 | #define T_PACK 3 | |
| 75 | #define T_TAIL 4 | |
| 76 | ||
| 77 | /* | |
| 78 | * io buffer states | |
| 79 | */ | |
| 80 | #define B_FREE 0 | |
| 81 | #define B_READY 1 | |
| 82 | #define B_SENT 2 | |
| 83 | #define B_PACK 4 | |
| 84 | #define B_COPY 010 | |
| 85 | #define B_XMIT 020 | |
| 86 | ||
| 87 | /* | |
| 88 | * frame control messages | |
| 89 | */ | |
| 90 | #define RR 1 | |
| 91 | #define RWR 2 | |
| 92 | #define REJ 3 | |
| 93 | #define CLOSE 4 | |
| 94 | #define RESET 6 | |
| 95 | #define INIT 7 | |
| 96 | #define UA 8 | |
| 97 | ||
| 98 | ||
| 99 | ||
| 100 | ||
| 101 | #define PKOPRI 31 | |
| 102 | #define PKIPRI 30 | |
| 103 | ||
| 104 | #define NPLINES 8 | |
| 105 | ||
| 106 | /* | |
| 107 | * packet ioctl buf | |
| 108 | */ | |
| 109 | struct piocb { | |
| 110 | unsigned t; | |
| 111 | short psize; | |
| 112 | short mode; | |
| 113 | short state; | |
| 114 | char window; | |
| 115 | }; |