1*0Sstevel@tonic-gate# 2*0Sstevel@tonic-gate# CDDL HEADER START 3*0Sstevel@tonic-gate# 4*0Sstevel@tonic-gate# The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate# Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate# (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate# with the License. 8*0Sstevel@tonic-gate# 9*0Sstevel@tonic-gate# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate# or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate# See the License for the specific language governing permissions 12*0Sstevel@tonic-gate# and limitations under the License. 13*0Sstevel@tonic-gate# 14*0Sstevel@tonic-gate# When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate# If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate# fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate# information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate# 20*0Sstevel@tonic-gate# CDDL HEADER END 21*0Sstevel@tonic-gate# 22*0Sstevel@tonic-gate# 23*0Sstevel@tonic-gate# Copyright (c) 1995-1999, by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate# All rights reserved. 25*0Sstevel@tonic-gate# 26*0Sstevel@tonic-gate# 27*0Sstevel@tonic-gate#ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate# When fast-centronics is set to "true", handshaking between the 30*0Sstevel@tonic-gate# driver and the peripheral is conducted by hardware. For some 31*0Sstevel@tonic-gate# Centronics devices the hardware handshaking is too fast for the 32*0Sstevel@tonic-gate# peripheral. To slow down the handshaking, fast-centronics must 33*0Sstevel@tonic-gate# be set to "false". By default fast-centronics is set to "false". 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gatefast-centronics="false"; 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate# When fast-1284-compatible is set to "true", IEEE 1284 compliant 39*0Sstevel@tonic-gate# devices operating in Compatibility mode will have the parallel port 40*0Sstevel@tonic-gate# handshaking controlled by the hardware. When it is set to "false" 41*0Sstevel@tonic-gate# handshaking is PIO controlled by the driver. By default 42*0Sstevel@tonic-gate# fast-1284-compatible is set "true". 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gatefast-1284-compatible="true"; 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate# Some Centronics devices require the Init signal to be toggled upon 48*0Sstevel@tonic-gate# power-up. The application should do this directly with ioctl(2) interface 49*0Sstevel@tonic-gate# as specified in ecpp(7d). As an alternative to using the API, the driver 50*0Sstevel@tonic-gate# may be configured to toggle the nInit signal upon every time the device 51*0Sstevel@tonic-gate# is opened. If centronics-init-seq is set to "true" the Init signal 52*0Sstevel@tonic-gate# will be toggled when the device is opened. The default is "false". 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gatecentronics-init-seq="false"; 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate# When the ecpp driver detects a Centronics device is in an error state, 58*0Sstevel@tonic-gate# ecpp will re-examine the device every centronics-retry milliseconds. 59*0Sstevel@tonic-gate# The default is 750 milliseconds. 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gatecentronics-retry=750; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate# Some Centronics printers continue to assert BUSY after the ACK pulse. 65*0Sstevel@tonic-gate# The driver waits for centronics-wait-for-busy microseconds for a 66*0Sstevel@tonic-gate# desertion of BUSY before it queues the current data transfer. 67*0Sstevel@tonic-gate# The default is 5000 microseconds (5ms). 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gatecentronics-wait-for-busy=5000; 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate# Devices that are not using fast handshaking may adjust the data setup 73*0Sstevel@tonic-gate# time and the strobe pulse width. The Centronics specification states that 74*0Sstevel@tonic-gate# each must be at least 1 microsecond. The default values are set to 75*0Sstevel@tonic-gate# 2 microseconds to ensure reliable transfers. 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gatecentronics-data-setup-time=2; 78*0Sstevel@tonic-gatecentronics-strobe-pulse-width=2; 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate# The ecpp driver waits ecpp-transfer-timeout seconds before it aborts 81*0Sstevel@tonic-gate# the current transfer and put the untransferred data back on the queue. 82*0Sstevel@tonic-gate# The default value for ecpp-transfer-timeout is 90 seconds. 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gateecpp-transfer-timeout=90; 85