staging: Add dgrp driver for Digi Realport devices

This is based on dgrp-1.9 available from
ftp://ftp1.digi.com/support/beta/linux/dgrp/dgrp-1.9.tgz

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/staging/dgrp/digirp.h b/drivers/staging/dgrp/digirp.h
new file mode 100644
index 00000000000..33c1394fade
--- /dev/null
+++ b/drivers/staging/dgrp/digirp.h
@@ -0,0 +1,129 @@
+/************************************************************************
+ * HP-UX Realport Daemon interface file.
+ *
+ * Copyright (C) 1998, by Digi International.  All Rights Reserved.
+ ************************************************************************/
+
+#ifndef _DIGIDRP_H
+#define _DIGIDRP_H
+
+/************************************************************************
+ * This file contains defines for the ioctl() interface to
+ * the realport driver.   This ioctl() interface is used by the
+ * daemon to set speed setup parameters honored by the driver.
+ ************************************************************************/
+
+struct link_struct {
+	int lk_fast_rate;  /* Fast line rate to be used
+			      when the delay is less-equal
+			      to lk_fast_delay */
+
+	int lk_fast_delay; /* Fast line rate delay in
+			      milliseconds */
+
+	int lk_slow_rate;  /* Slow line rate to be used when
+			      the delay is greater-equal
+			      to lk_slow_delay */
+
+	int lk_slow_delay; /* Slow line rate delay in
+			      milliseconds */
+
+	int lk_header_size; /* Estimated packet header size
+			       when sent across the slowest
+			       link.  */
+};
+
+#define DIGI_GETLINK	_IOW('e', 103, struct link_struct)	/* Get link parameters */
+#define DIGI_SETLINK	_IOW('e', 104, struct link_struct)	/* Set link parameters */
+
+
+/************************************************************************
+ * This module provides application access to special Digi
+ * serial line enhancements which are not standard UNIX(tm) features.
+ ************************************************************************/
+
+struct	digiflow_struct {
+	unsigned char	startc;				/* flow cntl start char	*/
+	unsigned char	stopc;				/* flow cntl stop char	*/
+};
+
+/************************************************************************
+ * Values for digi_flags
+ ************************************************************************/
+#define DIGI_IXON	0x0001		/* Handle IXON in the FEP	*/
+#define DIGI_FAST	0x0002		/* Fast baud rates		*/
+#define RTSPACE		0x0004		/* RTS input flow control	*/
+#define CTSPACE		0x0008		/* CTS output flow control	*/
+#define DSRPACE		0x0010		/* DSR output flow control	*/
+#define DCDPACE		0x0020		/* DCD output flow control	*/
+#define DTRPACE		0x0040		/* DTR input flow control	*/
+#define DIGI_COOK	0x0080		/* Cooked processing done in FEP */
+#define DIGI_FORCEDCD	0x0100		/* Force carrier		*/
+#define	DIGI_ALTPIN	0x0200		/* Alternate RJ-45 pin config	*/
+#define	DIGI_AIXON	0x0400		/* Aux flow control in fep	*/
+#define	DIGI_PRINTER	0x0800		/* Hold port open for flow cntrl */
+#define DIGI_PP_INPUT	0x1000		/* Change parallel port to input */
+#define DIGI_422	0x4000		/* Change parallel port to input */
+#define DIGI_RTS_TOGGLE	0x8000		/* Support RTS Toggle		 */
+
+
+/************************************************************************
+ * Values associated with transparent print
+ ************************************************************************/
+#define DIGI_PLEN	8		/* String length */
+#define	DIGI_TSIZ	10		/* Terminal string len */
+
+
+/************************************************************************
+ * Structure used with ioctl commands for DIGI parameters.
+ ************************************************************************/
+struct digi_struct {
+	unsigned short	digi_flags;		/* Flags (see above)	*/
+	unsigned short	digi_maxcps;		/* Max printer CPS	*/
+	unsigned short	digi_maxchar;		/* Max chars in print queue */
+	unsigned short	digi_bufsize;		/* Buffer size		*/
+	unsigned char	digi_onlen;		/* Length of ON string	*/
+	unsigned char	digi_offlen;		/* Length of OFF string	*/
+	char		digi_onstr[DIGI_PLEN];	/* Printer on string	*/
+	char		digi_offstr[DIGI_PLEN];	/* Printer off string	*/
+	char		digi_term[DIGI_TSIZ];	/* terminal string	*/
+};
+
+/************************************************************************
+ * Ioctl command arguments for DIGI parameters.
+ ************************************************************************/
+/* Read params */
+#define DIGI_GETA	_IOR('e', 94, struct digi_struct)
+
+/* Set params */
+#define DIGI_SETA	_IOW('e', 95, struct digi_struct)
+
+/* Drain & set params	*/
+#define DIGI_SETAW	_IOW('e', 96, struct digi_struct)
+
+/* Drain, flush & set params */
+#define DIGI_SETAF	_IOW('e', 97, struct digi_struct)
+
+/* Get startc/stopc flow control characters */
+#define	DIGI_GETFLOW	_IOR('e', 99, struct digiflow_struct)
+
+/* Set startc/stopc flow control characters */
+#define	DIGI_SETFLOW	_IOW('e', 100, struct digiflow_struct)
+
+/* Get Aux. startc/stopc flow control chars */
+#define	DIGI_GETAFLOW	_IOR('e', 101, struct digiflow_struct)
+
+/* Set Aux. startc/stopc flow control chars */
+#define	DIGI_SETAFLOW	_IOW('e', 102, struct digiflow_struct)
+
+/* Set integer baud rate */
+#define	DIGI_SETCUSTOMBAUD	_IOW('e', 106, int)
+
+/* Get integer baud rate */
+#define	DIGI_GETCUSTOMBAUD	_IOR('e', 107, int)
+
+#define	DIGI_GEDELAY	_IOR('d', 246, int)	/* Get edelay */
+#define	DIGI_SEDELAY	_IOW('d', 247, int)	/* Get edelay */
+
+
+#endif /* _DIGIDRP_H */