1.\"
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2.\" $FreeBSD: head/share/man/man4/man4.i386/cx.4 70466 2000-12-29 09:18:45Z ru $
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2.\" $FreeBSD: head/share/man/man4/man4.i386/cx.4 76175 2001-05-01 09:15:30Z schweikh $ |
3.\" 4.Dd December 12, 1994 5.Dt CX 4 i386 6.Os FreeBSD 7.Sh NAME 8.Nm cx 9.Nd asynchronous/synchronous Cronyx-Sigma adapter driver 10.Sh SYNOPSIS 11.Cd "device cx0 at isa? port 0x240 irq 15 drq 7" 12.Cd "device cx1 at isa? port 0x260 irq 12 drq 6"
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13.Cd pseudo-device sppp
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13.Cd device sppp |
14.Pp 15The base i/o port address should be set by jumpers on the board. 16The DMA i/o channel and interrupt request numbers are configured 17by software at adapter initialization. Legal values are: 18.Pp 19.Bl -tag -compact -width Port 20.It Port 210x240, 0x260, 0x280, 0x300, 0x320, 0x380 22.It IRQ 233, 5, 7, 10, 11, 12, 15 24.It DMA 255, 6, 7 26.El 27.Sh DESCRIPTION 28The Cronyx-Sigma driver supports the adapters of models 100, 29400, 500, 401, 404, 410, 440, 703, 801, 810, 840. Different models have 30different set of channels: 31.Pp 32.Bl -tag -compact -width Cronyx-Sigma-999 33.It Model 34Channels 35.It Cronyx-Sigma-100 360 37.It Cronyx-Sigma-400 384, 5, 6, 7
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39.It Cronyx-Sigma-500
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39.It Cronyx-Sigma-500 |
400, 4, 5, 6, 7
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41.It Cronyx-Sigma-401
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41.It Cronyx-Sigma-401 |
420, 1, 2, 3
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43.It Cronyx-Sigma-404
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43.It Cronyx-Sigma-404 |
440, 1, 2, 3
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45.It Cronyx-Sigma-410
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45.It Cronyx-Sigma-410 |
460, 1, 2, 3
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47.It Cronyx-Sigma-440
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47.It Cronyx-Sigma-440 |
480, 1, 2, 3
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49.It Cronyx-Sigma-703
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49.It Cronyx-Sigma-703 |
500, 1, 2, 4, 5, 6, 7
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51.It Cronyx-Sigma-801
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51.It Cronyx-Sigma-801 |
520, 1, 2, 3, 4, 5, 6, 7
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53.It Cronyx-Sigma-810
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53.It Cronyx-Sigma-810 |
540, 1, 2, 3, 4, 5, 6, 7
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55.It Cronyx-Sigma-840
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55.It Cronyx-Sigma-840 |
560, 1, 2, 3, 4, 5, 6, 7 57.El 58.Pp 59A pair of two adapters can be united together by the special 60short inter-board cable. Two united adapters use the same 61IRQ and DMA channels and from the point of driver works 62as the single 16-channel multiplexer. One of the united 63boards is ``master'' and the other is ``slave''. 64.Pp 65The channels of the slave united board are numbered by the driver 66beginning with 8, for example, the united adapter of the model 100/500 67has channels 0, 8, 12, 13, 14, 15. 68.Pp 69The channels which have the RS-232 interface can be used 70both in synchronous and asynchronous modes (software selectable 71by cxconfig utility) and hence are called ``universal'' channels. 72.Pp 73The special device files, 74.Pa /dev/* , 75for the adapter Cronyx-Sigma 76are created by th 77.Xr MAKEDEV 8 78An example: 79.Bd -literal 80cd /dev 81sh MAKEDEV cronyx ttyx0 ttyx1 ttyy0 82.Ed 83.Sh "Asynchronous driver" 84The asynchronous channel device files have the names:
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85.Pa /dev/ttyx#
86- for adapter cx0,
87.Pa /dev/ttyy#
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85.Pa /dev/ttyx# 86- for adapter cx0, 87.Pa /dev/ttyy# |
88- for adapter cx1,
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89.Pa /dev/ttyz#
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89.Pa /dev/ttyz# |
90- for cx2. 91Here # is the channel number in hexadecimal form, 0-9-a-f. 92.Pp
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93The driver fulfills the following standard ioctl requests (see
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93The driver fulfills the following standard ioctl requests (see |
94.Xr ioctl 2 ) : 95.Pp 96.Bl -tag -width TIOCXXXXX -compact 97.It Dv TIOCSBRK 98Start sending BREAK. 99.It Dv TIOCCBRK 100Stop sending BREAK. 101.It Dv TIOCSDTR 102Set DTR signal (DTR := 1). The DTR signal is always set 103on the first 104.Xr open 2 105and could be changed by 106.Dv TIOCCDTR ,
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107.Dv TIOCSDTR ,
108.Dv TIOCMSET ,
109.Dv TIOCMBIS ,
110.Dv TIOCMBIC
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107.Dv TIOCSDTR , 108.Dv TIOCMSET , 109.Dv TIOCMBIS , 110.Dv TIOCMBIC |
111ioctl calls. 112.It TIOCCDTR 113Clear DTR signal (DTR := 0). 114.It TIOCMSET 115Set the given values of DTR and RTS signals (<DTR:RTS> := data). 116The signals DTR and RTS are controlled by
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117.Dv TIOCM_DTR
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117.Dv TIOCM_DTR |
118and 119.Dv TIOCM_RTS 120bits of the data argument of the ioctl system call. 121.It TIOCMBIS 122Set DTR and RTS signals (<DTR:RTS> |= data).
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123The signals DTR and RTS are controlled by
124.Dv TIOCM_DTR
125and
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123The signals DTR and RTS are controlled by 124.Dv TIOCM_DTR 125and |
126.Dv TIOCM_RTS 127bits of the data argument of the ioctl system call. 128.It TIOCMBIC 129Clear DTR and RTS signals (<DTR:RTS> &= ~data).
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130The signals DTR and RTS are controlled by
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130The signals DTR and RTS are controlled by |
131.Dv TIOCM_DTR
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132and
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132and |
133.Dv TIOCM_RTS 134bits of the data argument of the ioctl system call. 135.It TIOCMGET 136Determine the state of the modem signals of the line. 137After the call the data argument contains the following bits: 138.Pp 139.Bl -tag -width TIOCM_XXX -compact
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140.It TIOCM_LE
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140.It TIOCM_LE |
141always set (Line Enabled)
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142.It TIOCM_DSR
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142.It TIOCM_DSR |
143Data Set Ready signal received
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144.It TIOCM_CTS
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144.It TIOCM_CTS |
145Clear To Send signal received
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146.It TIOCM_CD
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146.It TIOCM_CD |
147Data Carrier Detect signal received
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148.It TIOCM_DTR
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148.It TIOCM_DTR |
149Data Terminal Ready signal transmitted
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150.It TIOCM_RTS
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150.It TIOCM_RTS |
151Request To Send signal transmitted 152.El 153.El 154.Sh "Synchronous driver" 155The synchronous channels and universal channels, turned to the synchronous
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156mode by the
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156mode by the |
157.Xr cxconfig 8 158utility, are accessible as network 159interfaces named ``cx#'' where # is the channel number, 0..47.
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160All standard network interface parameters could be set by
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160All standard network interface parameters could be set by |
161.Xr ifconfig 8 162utility.
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163The
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163The |
164.Xr cxconfig 8 165command is used to change some extended channel 166options, and also for setting the high-level software protocol 167(e.g. PpP or Cisco HDLC). 168.Pp 169The universal channels could be used both in asynchronous and synchronous modes. 170By default the asynchronous mode is set.
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171The mode could be changed by
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171The mode could be changed by |
172.Xr cxconfig 8 173utility. 174The mode is blocked while the channel is busy (an asynchronous channel 175in open state or the network interface is up). 176.Sh "Synchronous Point-to-Point protocol" 177The Cronyx-Sigma driver uses the built-in implementation of the synchronous 178Point-to-Point protocol (sppp). It includes the support for such 179protocols as PpP/HDLC and Cisco/HDLC, and also the automatic 180connection loss test (via keepalive packets). 181The sppp protocol set is implemented as an independent module 182and could be used by other drivers of synchronous serial channels. 183The version of the driver for BSD/386 (BSDI) operating system 184also supports the usage of the general set of synchronous 185protocols, implemented inside the OS. 186The external protocol set could be selected by ``cxconfig ext'' command
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187(see
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187(see |
188.Xr cxconfig 8 ) . 189.Sh "Channel Options Management"
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190The
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190The |
191.Xr cxconfig 8 192utility is used for setting the channels options. 193The channel options are generally set at the start of the operating
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194system (for example, from the file
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194system (for example, from the file |
195.Pa /etc/rc ) . 196Note, that not all options have a sense for every particular 197case, and an attempt to set some of them can hang up the channel or 198the whole adapter. 199.Pp 200The actual channel options control functions are implemented via 201the ioctl-s on the special device file /dev/cronyx. 202There are the following ioctl-s available: 203.Pp 204.Bl -tag -width CXIOCXXXXXXX -compact 205.It CXIOCGETMODE 206Get the channel option values. 207.It CXIOCSETMODE 208Set the channel option values. 209.El 210.Pp 211The data argument of the ioctl call has an address of the options structure: 212.Bd -literal 213typedef struct { 214 unsigned char board; /* adapter number, 0..2 */ 215 unsigned char channel; /* channel number, 0..15 */ 216 unsigned char type; /* channel type (read only) */ 217 unsigned char iftype; /* chan0 interface */ 218 unsigned long rxbaud; /* receiver speed */ 219 unsigned long txbaud; /* transmitter speed */ 220 cx_chan_mode_t mode; /* channel mode */ 221 cx_chan_opt_t opt; /* common channel options */ 222 cx_opt_async_t aopt; /* async mode options */ 223 cx_opt_hdlc_t hopt; /* hdlc mode options */ 224 cx_opt_bisync_t bopt; /* bisync mode options */ 225 cx_opt_x21_t xopt; /* x.21 mode options */ 226 cx_soft_opt_t sopt; /* software options and state flags */ 227} cx_options_t; /* user settable options */ 228.Ed 229.Pp 230.Bl -tag -width rxbaudxxx 231.It Fa board 232The adapter number, 0..2. 233.It Fa channel 234The channel number, 0..15. 235.It Fa type 236The type of the channel (read-only argument). 237.It Fa iftype 238The interface type of the zero (and also the eight) channel: 0 - RS-232, 2391 - RS-449/V.35. 240.It Fa rxbaud 241The receiver data baud rate. 242.It Fa txbaud 243The transmitter data baud rate. 244.It Fa mode 245The channel mode: asynchronous/HDLC/Bisync/X.21. 246.It Fa opt 247The general channel options. 248.It Fa aopt 249The asynchronous mode options. 250.It Fa hopt 251The HDLC mode options. 252.It Fa bopt 253The Bisync mode options. 254.It Fa xopt 255The X.21 mode options. 256.It Fa sopt 257The software protocol options. 258.El 259.Sh FILES 260.Bl -tag -width /dev/cxXXXX -compact 261.It Pa /dev/cx?? 262Asynchronous channels. 263.It Pa /dev/cronyx 264The special device file for the channel options management. 265.El 266.Pp 267The sources for the driver reside in: 268.Pp 269.Bl -tag -width /dev/cxXXXX -compact 270.It Pa /sys/i386/isa/cronyx.c 271.It Pa /sys/i386/isa/cx.c 272.It Pa /sys/i386/isa/if_cx.c 273.It Pa /sys/i386/isa/cronyx.h 274.It Pa /sys/i386/isa/cxreg.h 275.It Pa /sys/net/if_spppsubr.c 276.It Pa /sys/net/if_sppp.h 277.El 278.Sh SEE ALSO 279.Xr cxconfig 8 , 280.Xr ifconfig 8
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