src/sys/dev/ppbus/ppi.c, branch release/3.3.0_cvs

This commit was manufactured by cvs2svn to create tag

1999-09-16T08:26:13+00:00

'RELENG_3_3_0_RELEASE'.

This commit was manufactured to restore the state of the 3.3-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

$Id$ -> $FreeBSD$

1999-08-29T16:33:42+00:00

Major ppbus commit with:

1999-01-10T12:04:56+00:00

	+ ECP parallel port chipset FIFO detection
	+ DMA+FIFO parallel I/O handled as chipset specific
	+ nlpt updated in order to use the above enhanced parallel I/O.
	  Use 'lptcontrol -e' to use enhanced I/O
	+ Various options documented in LINT
	+ Full IEEE1284 NIBBLE and BYTE modes support. See ppbus(4) for
	  an overview of the IEEE1284 standard
	+ Detection of PnP parallel devices at boot
	+ Read capability added to nlpt driver to get IEEE1284 compliant
	  printer status with a simple 'cat /dev/lpt0'
	+ IEEE1284 peripheral emulation added to BYTE mode. Two computers
	  may dialog according to IEEE1284 signaling method.
	  See PERIPH_1284 option and /sys/dev/ppbus/ppi.c

All this code is supposed to provide basic functions for IEEE1284 programming.
ppi.c and nlpt.c may act as examples.

The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static

1998-12-07T21:58:50+00:00

and local variables, goto labels, and functions declared but not defined.

This commit fixes various 64bit portability problems required for

1998-06-07T17:13:14+00:00

FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.

Actually implement the internals of the 'ppi' device.

1998-01-02T09:30:39+00:00

It is now possible to control the various parallel port signals from
user-space programs without having to resort to opening /dev/io
directly.

Removed unused #includes. The !KERNEL case may be more broken than before.

1997-09-01T00:51:52+00:00

Remove bogus i386/* includes.

1997-08-28T10:15:20+00:00

Use cdev major 82 instead of the (reserved-for-local-use) original 14

1997-08-16T14:16:58+00:00

Sync with ppbus-970815 from the author :

1997-08-16T14:05:38+00:00

 - interrupt-driven printing now works (nlpt)
 - Rearrangement of bus-related functions into ppb_base/ppbconf
 - Addition of ieee1284 interface functions, preliminary parallel-port
   PnP support

Submitted by:	Nicolas Souchu