scc.h (4623B) - Raw
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */ 3 4 #ifndef _SCC_H 5 #define _SCC_H 6 7 #include <linux/sockios.h> 8 9 /* selection of hardware types */ 10 11 #define PA0HZP 0x00 /* hardware type for PA0HZP SCC card and compatible */ 12 #define EAGLE 0x01 /* hardware type for EAGLE card */ 13 #define PC100 0x02 /* hardware type for PC100 card */ 14 #define PRIMUS 0x04 /* hardware type for PRIMUS-PC (DG9BL) card */ 15 #define DRSI 0x08 /* hardware type for DRSI PC*Packet card */ 16 #define BAYCOM 0x10 /* hardware type for BayCom (U)SCC */ 17 18 /* DEV ioctl() commands */ 19 20 enum SCC_ioctl_cmds { 21 SIOCSCCRESERVED = SIOCDEVPRIVATE, 22 SIOCSCCCFG, 23 SIOCSCCINI, 24 SIOCSCCCHANINI, 25 SIOCSCCSMEM, 26 SIOCSCCGKISS, 27 SIOCSCCSKISS, 28 SIOCSCCGSTAT, 29 SIOCSCCCAL 30 }; 31 32 /* Device parameter control (from WAMPES) */ 33 34 enum L1_params { 35 PARAM_DATA, 36 PARAM_TXDELAY, 37 PARAM_PERSIST, 38 PARAM_SLOTTIME, 39 PARAM_TXTAIL, 40 PARAM_FULLDUP, 41 PARAM_SOFTDCD, /* was: PARAM_HW */ 42 PARAM_MUTE, /* ??? */ 43 PARAM_DTR, 44 PARAM_RTS, 45 PARAM_SPEED, 46 PARAM_ENDDELAY, /* ??? */ 47 PARAM_GROUP, 48 PARAM_IDLE, 49 PARAM_MIN, 50 PARAM_MAXKEY, 51 PARAM_WAIT, 52 PARAM_MAXDEFER, 53 PARAM_TX, 54 PARAM_HWEVENT = 31, 55 PARAM_RETURN = 255 /* reset kiss mode */ 56 }; 57 58 /* fulldup parameter */ 59 60 enum FULLDUP_modes { 61 KISS_DUPLEX_HALF, /* normal CSMA operation */ 62 KISS_DUPLEX_FULL, /* fullduplex, key down trx after transmission */ 63 KISS_DUPLEX_LINK, /* fullduplex, key down trx after 'idletime' sec */ 64 KISS_DUPLEX_OPTIMA /* fullduplex, let the protocol layer control the hw */ 65 }; 66 67 /* misc. parameters */ 68 69 #define TIMER_OFF 65535U /* to switch off timers */ 70 #define NO_SUCH_PARAM 65534U /* param not implemented */ 71 72 /* HWEVENT parameter */ 73 74 enum HWEVENT_opts { 75 HWEV_DCD_ON, 76 HWEV_DCD_OFF, 77 HWEV_ALL_SENT 78 }; 79 80 /* channel grouping */ 81 82 #define RXGROUP 0100 /* if set, only tx when all channels clear */ 83 #define TXGROUP 0200 /* if set, don't transmit simultaneously */ 84 85 /* Tx/Rx clock sources */ 86 87 enum CLOCK_sources { 88 CLK_DPLL, /* normal halfduplex operation */ 89 CLK_EXTERNAL, /* external clocking (G3RUH/DF9IC modems) */ 90 CLK_DIVIDER, /* Rx = DPLL, Tx = divider (fullduplex with */ 91 /* modems without clock regeneration */ 92 CLK_BRG /* experimental fullduplex mode with DPLL/BRG for */ 93 /* MODEMs without clock recovery */ 94 }; 95 96 /* Tx state */ 97 98 enum TX_state { 99 TXS_IDLE, /* Transmitter off, no data pending */ 100 TXS_BUSY, /* waiting for permission to send / tailtime */ 101 TXS_ACTIVE, /* Transmitter on, sending data */ 102 TXS_NEWFRAME, /* reset CRC and send (next) frame */ 103 TXS_IDLE2, /* Transmitter on, no data pending */ 104 TXS_WAIT, /* Waiting for Mintime to expire */ 105 TXS_TIMEOUT /* We had a transmission timeout */ 106 }; 107 108 typedef unsigned long io_port; /* type definition for an 'io port address' */ 109 110 /* SCC statistical information */ 111 112 struct scc_stat { 113 long rxints; /* Receiver interrupts */ 114 long txints; /* Transmitter interrupts */ 115 long exints; /* External/status interrupts */ 116 long spints; /* Special receiver interrupts */ 117 118 long txframes; /* Packets sent */ 119 long rxframes; /* Number of Frames Actually Received */ 120 long rxerrs; /* CRC Errors */ 121 long txerrs; /* KISS errors */ 122 123 unsigned int nospace; /* "Out of buffers" */ 124 unsigned int rx_over; /* Receiver Overruns */ 125 unsigned int tx_under; /* Transmitter Underruns */ 126 127 unsigned int tx_state; /* Transmitter state */ 128 int tx_queued; /* tx frames enqueued */ 129 130 unsigned int maxqueue; /* allocated tx_buffers */ 131 unsigned int bufsize; /* used buffersize */ 132 }; 133 134 struct scc_modem { 135 long speed; /* Line speed, bps */ 136 char clocksrc; /* 0 = DPLL, 1 = external, 2 = divider */ 137 char nrz; /* NRZ instead of NRZI */ 138 }; 139 140 struct scc_kiss_cmd { 141 int command; /* one of the KISS-Commands defined above */ 142 unsigned param; /* KISS-Param */ 143 }; 144 145 struct scc_hw_config { 146 io_port data_a; /* data port channel A */ 147 io_port ctrl_a; /* control port channel A */ 148 io_port data_b; /* data port channel B */ 149 io_port ctrl_b; /* control port channel B */ 150 io_port vector_latch; /* INTACK-Latch (#) */ 151 io_port special; /* special function port */ 152 153 int irq; /* irq */ 154 long clock; /* clock */ 155 char option; /* command for function port */ 156 157 char brand; /* hardware type */ 158 char escc; /* use ext. features of a 8580/85180/85280 */ 159 }; 160 161 /* (#) only one INTACK latch allowed. */ 162 163 164 struct scc_mem_config { 165 unsigned int dummy; 166 unsigned int bufsize; 167 }; 168 169 struct scc_calibrate { 170 unsigned int time; 171 unsigned char pattern; 172 }; 173 174 #endif /* _SCC_H */