staging: dgnc: add dgnc digi driver

config DGNC

       tristate "Digi Neo and Classic PCI Products"

       default n

       depends on TTY

       ---help---

       Driver for the Digi International Neo and Classic PCI based product line.

EXTRA_CFLAGS += -DDG_NAME=\"dgnc-1.3-16\" -DDG_PART=\"40002369_F\"

obj-$(CONFIG_DGNC) += dgnc.o

dgnc-objs :=   dgnc_cls.o dgnc_driver.o\

               dgnc_mgmt.o dgnc_neo.o\

               dgnc_proc.o dgnc_trace.o dgnc_tty.o dgnc_sysfs.o

#

# From Makefile.inc

#

#

# Common definitions go here.

#

#

# TRUE_VERSION is the version string used in the driver build,

# it is intended to be in the form:

#

#   2.0-0

#

# A string noting a particular special modification could be

# used as well.  This string will be reported when the driver

# is loaded, and will be exposed by its /proc/dgnc/info

# interface.

#

TRUE_VERSION="1.3-16"

#

# DGNC_PART_NUM is the part number string for the driver package.

# It should be in the form:

#

#   40002369_A

#

DGNC_PART_NUM=40002369_F

#

# DGNC_REL_NOTE is the part number string for the driver release

# notes.  It should be in the form:

#

#   93000517_A

#

DGNC_REL_NOTE=93000517_F

#

# DGNC_PKG_VER is the "version" number string included in the

# various documentation and packaging files.  It should be

# in the form:

#

#   1.0

#

DGNC_PKG_VER=1.3

#

# DGNC_PKG_REV is the "revision" of this version.  Together,

# a linux module revision is built with:

#

#   ${DGNC_PKG_VER}-${DGNC_PKG_REV}

#

DGNC_PKG_REV=16

#

# DRP_PKG_DATE is the "date" string included in (for now) the

# release notes.  It should be in the form:

#

#   11/04/2003

#

DGNC_PKG_DATE=10/17/2008

INIT_DIR= $(shell \

	if [ -d /etc/rc.d/init.d ]; \

	then echo "$(RPM_BUILD_ROOT)/etc/rc.d/init.d"; \

	else echo "$(RPM_BUILD_ROOT)/etc/init.d"; fi)

#

#	Miscelaneous path macro's

#

PACKAGE=	dgnc

DEVDIR=		/dev/dg/$(PACKAGE)

SRCDIR=		/usr/src/dg/$(PACKAGE)

BINDIR=		/usr/bin

DRVLIBDIR=	/etc/$(PACKAGE)

MANDIR=		/usr/man

USRLIBDIR=	/usr/lib

DGNCDIR=	/etc/dgnc

INIT_DIR= $(shell \

	if [ -d /etc/rc.d/init.d ]; \

	then echo "/etc/rc.d/init.d"; \

	else echo "/etc/init.d"; fi)

#

# From Makefile

#

ifndef MYPWD

MYPWD = $(shell pwd)

endif

ifeq ($(KERNDIR),)

  KERNVERS       := $(shell uname -r)

  KERNDIR         :=/lib/modules/${KERNVERS}/

endif

# Grab version and other important stuff

RPMNAME := $(PACKAGE)-$(TRUE_VERSION)

PARTNUM := $(DGNC_PART_NUM)

RELNOTES := $(DGNC_REL_NOTE)

MODDIR = $(shell echo $(BUILDROOT)/lib/modules/3.4.36-lcrs/misc)

LSMOD = /sbin/lsmod

RMMOD = /sbin/rmmod

INSMOD = /sbin/insmod

NEW_TTY_LOCKING = No

NEW_TTY_BUFFERING = No

REGISTER_TTYS_WITH_SYSFS = No

# Send in some extra things...

EXTRA_CFLAGS += -I${MYPWD} -I${MYPWD}/include -I${MYPWD}/../../commoninc\

	-I${MYPWD}/../../dpa -DLINUX -DDG_NAME=\"$(RPMNAME)\"\

	-DDG_PART=\"$(PARTNUM)\" -DDGNC_TRACER

ifeq ($(NEW_TTY_LOCKING),Yes)

	EXTRA_CFLAGS += -DNEW_TTY_LOCKING

endif

ifeq ($(NEW_TTY_BUFFERING),Yes)

	EXTRA_CFLAGS += -DNEW_TTY_BUFFERING

endif

ifeq ($(REGISTER_TTYS_WITH_SYSFS),Yes)

	EXTRA_CFLAGS += -DREGISTER_TTYS_WITH_SYSFS

endif

# Conform to correct kbuild conventions...

/*

 * Copyright 2003 Digi International (www.digi.com)

 *	Scott H Kilau <Scott_Kilau at digi dot com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2, or (at your option)

 * any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the

 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR

 * PURPOSE.  See the GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!

 *

 */

#ifndef __DGNC_CLS_H

#define __DGNC_CLS_H

#include "dgnc_types.h"

/************************************************************************ 

 * Per channel/port Classic UART structure				*

 ************************************************************************

 *		Base Structure Entries Usage Meanings to Host		*

 *									*

 *	W = read write		R = read only				* 

 *			U = Unused.					*

 ************************************************************************/

struct cls_uart_struct {

	volatile uchar txrx;		/* WR  RHR/THR - Holding Reg */

	volatile uchar ier;		/* WR  IER - Interrupt Enable Reg */

	volatile uchar isr_fcr;		/* WR  ISR/FCR - Interrupt Status Reg/Fifo Control Reg */

	volatile uchar lcr;		/* WR  LCR - Line Control Reg */

	volatile uchar mcr;		/* WR  MCR - Modem Control Reg */

	volatile uchar lsr;		/* WR  LSR - Line Status Reg */

	volatile uchar msr;		/* WR  MSR - Modem Status Reg */

	volatile uchar spr;		/* WR  SPR - Scratch Pad Reg */

};

/* Where to read the interrupt register (8bits) */

#define	UART_CLASSIC_POLL_ADDR_OFFSET	0x40

#define UART_EXAR654_ENHANCED_REGISTER_SET 0xBF

#define UART_16654_FCR_TXTRIGGER_8	0x0

#define UART_16654_FCR_TXTRIGGER_16	0x10

#define UART_16654_FCR_TXTRIGGER_32	0x20

#define UART_16654_FCR_TXTRIGGER_56	0x30

#define UART_16654_FCR_RXTRIGGER_8	0x0

#define UART_16654_FCR_RXTRIGGER_16	0x40

#define UART_16654_FCR_RXTRIGGER_56	0x80

#define UART_16654_FCR_RXTRIGGER_60     0xC0

#define UART_IIR_XOFF			0x10	/* Received Xoff signal/Special character */

#define UART_IIR_CTSRTS			0x20	/* Received CTS/RTS change of state */

#define UART_IIR_RDI_TIMEOUT		0x0C    /* Receiver data TIMEOUT */

/*

 * These are the EXTENDED definitions for the Exar 654's Interrupt

 * Enable Register.

 */

#define UART_EXAR654_EFR_ECB      0x10    /* Enhanced control bit */

#define UART_EXAR654_EFR_IXON     0x2     /* Receiver compares Xon1/Xoff1 */

#define UART_EXAR654_EFR_IXOFF    0x8     /* Transmit Xon1/Xoff1 */

#define UART_EXAR654_EFR_RTSDTR   0x40    /* Auto RTS/DTR Flow Control Enable */

#define UART_EXAR654_EFR_CTSDSR   0x80    /* Auto CTS/DSR Flow COntrol Enable */

#define UART_EXAR654_XOFF_DETECT  0x1     /* Indicates whether chip saw an incoming XOFF char  */

#define UART_EXAR654_XON_DETECT   0x2     /* Indicates whether chip saw an incoming XON char */

#define UART_EXAR654_IER_XOFF     0x20    /* Xoff Interrupt Enable */

#define UART_EXAR654_IER_RTSDTR   0x40    /* Output Interrupt Enable */

#define UART_EXAR654_IER_CTSDSR   0x80    /* Input Interrupt Enable */

/* 

 * Our Global Variables

 */

extern struct board_ops dgnc_cls_ops;

#endif