/usr/i686-linux-gnu/include/linux/scc.h is in linux-libc-dev-i386-cross 4.15.0-18.19cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */
#ifndef _SCC_H
#define _SCC_H
/* selection of hardware types */
#define PA0HZP 0x00 /* hardware type for PA0HZP SCC card and compatible */
#define EAGLE 0x01 /* hardware type for EAGLE card */
#define PC100 0x02 /* hardware type for PC100 card */
#define PRIMUS 0x04 /* hardware type for PRIMUS-PC (DG9BL) card */
#define DRSI 0x08 /* hardware type for DRSI PC*Packet card */
#define BAYCOM 0x10 /* hardware type for BayCom (U)SCC */
/* DEV ioctl() commands */
enum SCC_ioctl_cmds {
SIOCSCCRESERVED = SIOCDEVPRIVATE,
SIOCSCCCFG,
SIOCSCCINI,
SIOCSCCCHANINI,
SIOCSCCSMEM,
SIOCSCCGKISS,
SIOCSCCSKISS,
SIOCSCCGSTAT,
SIOCSCCCAL
};
/* Device parameter control (from WAMPES) */
enum L1_params {
PARAM_DATA,
PARAM_TXDELAY,
PARAM_PERSIST,
PARAM_SLOTTIME,
PARAM_TXTAIL,
PARAM_FULLDUP,
PARAM_SOFTDCD, /* was: PARAM_HW */
PARAM_MUTE, /* ??? */
PARAM_DTR,
PARAM_RTS,
PARAM_SPEED,
PARAM_ENDDELAY, /* ??? */
PARAM_GROUP,
PARAM_IDLE,
PARAM_MIN,
PARAM_MAXKEY,
PARAM_WAIT,
PARAM_MAXDEFER,
PARAM_TX,
PARAM_HWEVENT = 31,
PARAM_RETURN = 255 /* reset kiss mode */
};
/* fulldup parameter */
enum FULLDUP_modes {
KISS_DUPLEX_HALF, /* normal CSMA operation */
KISS_DUPLEX_FULL, /* fullduplex, key down trx after transmission */
KISS_DUPLEX_LINK, /* fullduplex, key down trx after 'idletime' sec */
KISS_DUPLEX_OPTIMA /* fullduplex, let the protocol layer control the hw */
};
/* misc. parameters */
#define TIMER_OFF 65535U /* to switch off timers */
#define NO_SUCH_PARAM 65534U /* param not implemented */
/* HWEVENT parameter */
enum HWEVENT_opts {
HWEV_DCD_ON,
HWEV_DCD_OFF,
HWEV_ALL_SENT
};
/* channel grouping */
#define RXGROUP 0100 /* if set, only tx when all channels clear */
#define TXGROUP 0200 /* if set, don't transmit simultaneously */
/* Tx/Rx clock sources */
enum CLOCK_sources {
CLK_DPLL, /* normal halfduplex operation */
CLK_EXTERNAL, /* external clocking (G3RUH/DF9IC modems) */
CLK_DIVIDER, /* Rx = DPLL, Tx = divider (fullduplex with */
/* modems without clock regeneration */
CLK_BRG /* experimental fullduplex mode with DPLL/BRG for */
/* MODEMs without clock recovery */
};
/* Tx state */
enum TX_state {
TXS_IDLE, /* Transmitter off, no data pending */
TXS_BUSY, /* waiting for permission to send / tailtime */
TXS_ACTIVE, /* Transmitter on, sending data */
TXS_NEWFRAME, /* reset CRC and send (next) frame */
TXS_IDLE2, /* Transmitter on, no data pending */
TXS_WAIT, /* Waiting for Mintime to expire */
TXS_TIMEOUT /* We had a transmission timeout */
};
typedef unsigned long io_port; /* type definition for an 'io port address' */
/* SCC statistical information */
struct scc_stat {
long rxints; /* Receiver interrupts */
long txints; /* Transmitter interrupts */
long exints; /* External/status interrupts */
long spints; /* Special receiver interrupts */
long txframes; /* Packets sent */
long rxframes; /* Number of Frames Actually Received */
long rxerrs; /* CRC Errors */
long txerrs; /* KISS errors */
unsigned int nospace; /* "Out of buffers" */
unsigned int rx_over; /* Receiver Overruns */
unsigned int tx_under; /* Transmitter Underruns */
unsigned int tx_state; /* Transmitter state */
int tx_queued; /* tx frames enqueued */
unsigned int maxqueue; /* allocated tx_buffers */
unsigned int bufsize; /* used buffersize */
};
struct scc_modem {
long speed; /* Line speed, bps */
char clocksrc; /* 0 = DPLL, 1 = external, 2 = divider */
char nrz; /* NRZ instead of NRZI */
};
struct scc_kiss_cmd {
int command; /* one of the KISS-Commands defined above */
unsigned param; /* KISS-Param */
};
struct scc_hw_config {
io_port data_a; /* data port channel A */
io_port ctrl_a; /* control port channel A */
io_port data_b; /* data port channel B */
io_port ctrl_b; /* control port channel B */
io_port vector_latch; /* INTACK-Latch (#) */
io_port special; /* special function port */
int irq; /* irq */
long clock; /* clock */
char option; /* command for function port */
char brand; /* hardware type */
char escc; /* use ext. features of a 8580/85180/85280 */
};
/* (#) only one INTACK latch allowed. */
struct scc_mem_config {
unsigned int dummy;
unsigned int bufsize;
};
struct scc_calibrate {
unsigned int time;
unsigned char pattern;
};
#endif /* _SCC_H */
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