1.\" $NetBSD: ibmcd.4,v 1.4 2014/03/18 18:20:39 riastradh Exp $ 2.\" 3.\" Copyright (c) 2012 Marc Balmer <marc@msys.ch> 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" 26.Dd December 17, 2012 27.Dt IBMCD 4 28.Os 29.Sh NAME 30.Nm ibmcd 31.Nd support for the IBM 4810 BSP cash drawer port 32.Sh SYNOPSIS 33.Cd "ibmcd* at at pci ? dev ? function ?" 34.Cd "gpio* at ibmcd?" 35.Sh DESCRIPTION 36The 37.Nm 38driver controls the cash drawer port of the IBM 4810 BSP PCI device found 39in IBM point of sale terminals (e.g. in the SurePOS 300 series) using the GPIO 40subsystem. 41.Pp 42.Nm 43provides a GPIO device with three pins: pin 0 is used to control the cash drawer 44while pin 1 can be used to read the current state of the sense input pin. 45A logical 0 means the cash drawer is closed, a logical 1 means the cash drawer 46is open. 47.Pp 48Pin 2 reports if a cash drawer is connected. 49A logical 0 means there is no cash drawer connected, a logical 1 means the cash drawer is connected. 50.Pp 51To open the cash drawer, set pin 0 to logical 1. 52There is no need to reset pin 0 to logical 0 afterwards as the device generates 53a oneshot impulse. 54.Sh SEE ALSO 55.Xr gpio 4 , 56.Xr ptcd 4 , 57.Xr gpioctl 8 58.Sh HISTORY 59The 60.Nm 61driver first appeared in 62.Nx 6.1 . 63.Sh AUTHORS 64.An -nosplit 65The 66.Nm 67driver was written by 68.An Marc Balmer Aq Mt marc@msys.ch . 69