include/uapi/linux/scc.h

   1 /* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */
   2
   3 #ifndef _UAPI_SCC_H
   4 #define _UAPI_SCC_H
   5
   6
   7 /* selection of hardware types */
   8
   9 #define PA0HZP          0x00    /* hardware type for PA0HZP SCC card and compatible */
  10 #define EAGLE           0x01    /* hardware type for EAGLE card */
  11 #define PC100           0x02    /* hardware type for PC100 card */
  12 #define PRIMUS          0x04    /* hardware type for PRIMUS-PC (DG9BL) card */
  13 #define DRSI            0x08    /* hardware type for DRSI PC*Packet card */
  14 #define BAYCOM          0x10    /* hardware type for BayCom (U)SCC */
  15
  16 /* DEV ioctl() commands */
  17
  18 enum SCC_ioctl_cmds {
  19         SIOCSCCRESERVED = SIOCDEVPRIVATE,
  20         SIOCSCCCFG,
  21         SIOCSCCINI,
  22         SIOCSCCCHANINI,
  23         SIOCSCCSMEM,
  24         SIOCSCCGKISS,
  25         SIOCSCCSKISS,
  26         SIOCSCCGSTAT,
  27         SIOCSCCCAL
  28 };
  29
  30 /* Device parameter control (from WAMPES) */
  31
  32 enum L1_params {
  33         PARAM_DATA,
  34         PARAM_TXDELAY,
  35         PARAM_PERSIST,
  36         PARAM_SLOTTIME,
  37         PARAM_TXTAIL,
  38         PARAM_FULLDUP,
  39         PARAM_SOFTDCD,          /* was: PARAM_HW */
  40         PARAM_MUTE,             /* ??? */
  41         PARAM_DTR,
  42         PARAM_RTS,
  43         PARAM_SPEED,
  44         PARAM_ENDDELAY,         /* ??? */
  45         PARAM_GROUP,
  46         PARAM_IDLE,
  47         PARAM_MIN,
  48         PARAM_MAXKEY,
  49         PARAM_WAIT,
  50         PARAM_MAXDEFER,
  51         PARAM_TX,
  52         PARAM_HWEVENT = 31,
  53         PARAM_RETURN = 255      /* reset kiss mode */
  54 };
  55
  56 /* fulldup parameter */
  57
  58 enum FULLDUP_modes {
  59         KISS_DUPLEX_HALF,       /* normal CSMA operation */
  60         KISS_DUPLEX_FULL,       /* fullduplex, key down trx after transmission */
  61         KISS_DUPLEX_LINK,       /* fullduplex, key down trx after 'idletime' sec */
  62         KISS_DUPLEX_OPTIMA      /* fullduplex, let the protocol layer control the hw */
  63 };
  64
  65 /* misc. parameters */
  66
  67 #define TIMER_OFF       65535U  /* to switch off timers */
  68 #define NO_SUCH_PARAM   65534U  /* param not implemented */
  69
  70 /* HWEVENT parameter */
  71
  72 enum HWEVENT_opts {
  73         HWEV_DCD_ON,
  74         HWEV_DCD_OFF,
  75         HWEV_ALL_SENT
  76 };
  77
  78 /* channel grouping */
  79
  80 #define RXGROUP         0100    /* if set, only tx when all channels clear */
  81 #define TXGROUP         0200    /* if set, don't transmit simultaneously */
  82
  83 /* Tx/Rx clock sources */
  84
  85 enum CLOCK_sources {
  86         CLK_DPLL,       /* normal halfduplex operation */
  87         CLK_EXTERNAL,   /* external clocking (G3RUH/DF9IC modems) */
  88         CLK_DIVIDER,    /* Rx = DPLL, Tx = divider (fullduplex with */
  89                         /* modems without clock regeneration */
  90         CLK_BRG         /* experimental fullduplex mode with DPLL/BRG for */
  91                         /* MODEMs without clock recovery */
  92 };
  93
  94 /* Tx state */
  95
  96 enum TX_state {
  97         TXS_IDLE,       /* Transmitter off, no data pending */
  98         TXS_BUSY,       /* waiting for permission to send / tailtime */
  99         TXS_ACTIVE,     /* Transmitter on, sending data */
 100         TXS_NEWFRAME,   /* reset CRC and send (next) frame */
 101         TXS_IDLE2,      /* Transmitter on, no data pending */
 102         TXS_WAIT,       /* Waiting for Mintime to expire */
 103         TXS_TIMEOUT     /* We had a transmission timeout */
 104 };
 105
 106 typedef unsigned long io_port;  /* type definition for an 'io port address' */
 107
 108 /* SCC statistical information */
 109
 110 struct scc_stat {
 111         long rxints;            /* Receiver interrupts */
 112         long txints;            /* Transmitter interrupts */
 113         long exints;            /* External/status interrupts */
 114         long spints;            /* Special receiver interrupts */
 115
 116         long txframes;          /* Packets sent */
 117         long rxframes;          /* Number of Frames Actually Received */
 118         long rxerrs;            /* CRC Errors */
 119         long txerrs;            /* KISS errors */
 120
 121         unsigned int nospace;   /* "Out of buffers" */
 122         unsigned int rx_over;   /* Receiver Overruns */
 123         unsigned int tx_under;  /* Transmitter Underruns */
 124
 125         unsigned int tx_state;  /* Transmitter state */
 126         int tx_queued;          /* tx frames enqueued */
 127
 128         unsigned int maxqueue;  /* allocated tx_buffers */
 129         unsigned int bufsize;   /* used buffersize */
 130 };
 131
 132 struct scc_modem {
 133         long speed;             /* Line speed, bps */
 134         char clocksrc;          /* 0 = DPLL, 1 = external, 2 = divider */
 135         char nrz;               /* NRZ instead of NRZI */
 136 };
 137
 138 struct scc_kiss_cmd {
 139         int      command;       /* one of the KISS-Commands defined above */
 140         unsigned param;         /* KISS-Param */
 141 };
 142
 143 struct scc_hw_config {
 144         io_port data_a;         /* data port channel A */
 145         io_port ctrl_a;         /* control port channel A */
 146         io_port data_b;         /* data port channel B */
 147         io_port ctrl_b;         /* control port channel B */
 148         io_port vector_latch;   /* INTACK-Latch (#) */
 149         io_port special;        /* special function port */
 150
 151         int     irq;            /* irq */
 152         long    clock;          /* clock */
 153         char    option;         /* command for function port */
 154
 155         char brand;             /* hardware type */
 156         char escc;              /* use ext. features of a 8580/85180/85280 */
 157 };
 158
 159 /* (#) only one INTACK latch allowed. */
 160
 161
 162 struct scc_mem_config {
 163         unsigned int dummy;
 164         unsigned int bufsize;
 165 };
 166
 167 struct scc_calibrate {
 168         unsigned int time;
 169         unsigned char pattern;
 170 };
 171
 172 #endif /* _UAPI_SCC_H */