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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 _UAPI_SCC_H5#define _UAPI_SCC_H6 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 20enum SCC_ioctl_cmds {21 SIOCSCCRESERVED = SIOCDEVPRIVATE,22 SIOCSCCCFG,23 SIOCSCCINI,24 SIOCSCCCHANINI,25 SIOCSCCSMEM,26 SIOCSCCGKISS,27 SIOCSCCSKISS,28 SIOCSCCGSTAT,29 SIOCSCCCAL30};31 32/* Device parameter control (from WAMPES) */33 34enum 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 60enum 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 74enum HWEVENT_opts {75 HWEV_DCD_ON,76 HWEV_DCD_OFF,77 HWEV_ALL_SENT78};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 87enum 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 98enum 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 108typedef unsigned long io_port; /* type definition for an 'io port address' */109 110/* SCC statistical information */111 112struct 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 134struct 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 140struct scc_kiss_cmd {141 int command; /* one of the KISS-Commands defined above */142 unsigned param; /* KISS-Param */143};144 145struct 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 164struct scc_mem_config {165 unsigned int dummy;166 unsigned int bufsize;167};168 169struct scc_calibrate {170 unsigned int time;171 unsigned char pattern;172};173 174#endif /* _UAPI_SCC_H */175