| ppi.4 (84306) | ppi.4 (117011) |
|---|---|
| 1.\" Copyright (c) 1997 2.\" Michael Smith 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer as --- 9 unchanged lines hidden (view full) --- 18.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24.\" POSSIBILITY OF SUCH DAMAGE. 25.\" | 1.\" Copyright (c) 1997 2.\" Michael Smith 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer as --- 9 unchanged lines hidden (view full) --- 18.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24.\" POSSIBILITY OF SUCH DAMAGE. 25.\" |
| 26.\" $FreeBSD: head/share/man/man4/ppi.4 84306 2001-10-01 16:09:29Z ru $ | 26.\" $FreeBSD: head/share/man/man4/ppi.4 117011 2003-06-28 23:53:39Z ru $ |
| 27.\" 28.Dd January 2, 1998 29.Dt PPI 4 30.Os 31.Sh NAME 32.Nm ppi 33.Nd "user-space interface to ppbus parallel 'geek' port" 34.Sh SYNOPSIS --- 11 unchanged lines hidden (view full) --- 46.Sh PROGRAMMING INTERFACE 47.In dev/ppbus/ppi.h 48.In dev/ppbus/ppbconf.h 49.Pp 50All I/O on the 51.Nm 52interface is performed using 53.Fn ioctl | 27.\" 28.Dd January 2, 1998 29.Dt PPI 4 30.Os 31.Sh NAME 32.Nm ppi 33.Nd "user-space interface to ppbus parallel 'geek' port" 34.Sh SYNOPSIS --- 11 unchanged lines hidden (view full) --- 46.Sh PROGRAMMING INTERFACE 47.In dev/ppbus/ppi.h 48.In dev/ppbus/ppbconf.h 49.Pp 50All I/O on the 51.Nm 52interface is performed using 53.Fn ioctl |
| 54calls. Each command takes a single | 54calls. 55Each command takes a single |
| 55.Ft u_int8_t | 56.Ft u_int8_t |
| 56argument, transferring one byte of data. The following commands are 57available: | 57argument, transferring one byte of data. 58The following commands are available: |
| 58.Bl -tag -width indent 59.It Dv PPIGDATA , PPISDATA 60Get and set the contents of the data register. 61.It Dv PPIGSTATUS , PPISSTATUS 62Get and set the contents of the status register. 63.It Dv PPIGCTRL , PPISCTRL 64Get and set the contents of the control register. | 59.Bl -tag -width indent 60.It Dv PPIGDATA , PPISDATA 61Get and set the contents of the data register. 62.It Dv PPIGSTATUS , PPISSTATUS 63Get and set the contents of the status register. 64.It Dv PPIGCTRL , PPISCTRL 65Get and set the contents of the control register. |
| 65The following defines correspond to bits in this register. Setting 66a bit in the control register drives the corresponding output low. | 66The following defines correspond to bits in this register. 67Setting a bit in the control register drives the corresponding output low. |
| 67.Bl -tag -width indent -compact 68.It Dv STROBE 69.It Dv AUTOFEED 70.It Dv nINIT 71.It Dv SELECTIN 72.It Dv PCD 73.El 74.It Dv PPIGEPP , PPISEPP --- 32 unchanged lines hidden --- | 68.Bl -tag -width indent -compact 69.It Dv STROBE 70.It Dv AUTOFEED 71.It Dv nINIT 72.It Dv SELECTIN 73.It Dv PCD 74.El 75.It Dv PPIGEPP , PPISEPP --- 32 unchanged lines hidden --- |