parallel_io.h

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 /****************************************************************************
*
*     Axis 2 PCI Linux Kernel driver
*     File:    parallel_io.h
*     Version: 1.0
*     Copyright 2004 Heber Limited (http://www.heber.co.uk)
*
*     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; 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.
*
*     Changes:
*
****************************************************************************/
#ifndef AXIS_PARALLEL_IO_H
#define AXIS_PARALLEL_IO_H
#ifndef _LINUX_KERNEL_H

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/list.h>
#include <linux/ioport.h>
#include <linux/serial.h>
#include <linux/interrupt.h>
#include <linux/string.h>
#include <linux/spinlock.h>
#include <linux/mtd/mtd.h>
#include <linux/crypto.h>
#include <asm/uaccess.h>

#endif  //_LINUX_KERNEL_H

#ifndef AXIS_HARDWARE_H
#include "axis_hardware.h"
#endif //AXIS_HARDWARE_H


#define AXIS_DIPSWITCH_NUMBER 16
#define AXIS_DIPSWITCH_MAP_SIZE (AXIS_DIPSWITCH_NUMBER>>3)
#define AXIS_OUTPUTS_NUMBER 32
#define AXIS_OUTPUTS_MAP_SIZE (AXIS_OUTPUTS_NUMBER>>3)


#define PARALLEL_IO_CONFIGURATION           (0x30+CONTROL_OFFSET)
#define PARALLEL_OUTPUTS_PORT               (0x34+CONTROL_OFFSET)
#define RAW_PARALLEL_INPUTS_PORT            (0x20+CONTROL_OFFSET)
#define DEBOUNCED_PARALLEL_INPUTS_PORT      (0x28+CONTROL_OFFSET)
#define RAW_MISC_INPUTS_PORT                (0x24+CONTROL_OFFSET)
#define DEBOUNCED_MISC_INPUTS_PORT          (0x2C+CONTROL_OFFSET)
#define READ_INPUTS_MASK_REGISTER           (0x38+CONTROL_OFFSET)
#define READ_MISC_MASK_REGISTER             (0x3C+CONTROL_OFFSET)
#define DIPSWITCH_OFFSET 0x64

/* ------------- Input control bit definition --------------------*/
#define AUTO_READ_ENABLE    (1<<0)
#define AUTO_WRITE_ENABLE    (1<<4)
#define MISC_INPUTS 4           //offset of misc inputs in inputs bitmap

/*
Define a struct to map inputs to name

*/

#define AXIS_INPUTS_NUMBER 40 //(sizeof(input_definitions)/sizeof(struct input_def))
#define AXIS_INPUTS_MAP_SIZE (AXIS_INPUTS_NUMBER>>3)
#define AXIS_OUTPUTS_NUMBER 32 //(sizeof(output_definitions)/sizeof(struct output_def))
#define AXIS_OUTPUTS_MAP_SIZE (AXIS_OUTPUTS_NUMBER>>3)

struct input_def
{
    const char * name ; 
} ;

struct output_def
{
    const char * name ; 
} ;


struct axis_io_bitmap
{
    unsigned char outputs_bitmap[AXIS_OUTPUTS_MAP_SIZE];        
    unsigned char dipswitch_bitmap[AXIS_DIPSWITCH_MAP_SIZE];    
    unsigned char inputs_bitmap[AXIS_INPUTS_MAP_SIZE];          
    unsigned char debounced_inputs_bitmap[AXIS_INPUTS_MAP_SIZE]; 
};

extern  struct file_operations output_file_operations ;
extern  struct file_operations dipswitch_file_operations ;
extern  struct file_operations input_file_operations ;

void create_proc_dipswitch_entries(struct axis_pci_device_entry* device);
void delete_proc_dipswitch_entries(struct axis_pci_device_entry* device);
void create_proc_input_entries(struct axis_pci_device_entry* device);
void delete_proc_input_entries(struct axis_pci_device_entry* device);
void create_proc_output_entries(struct axis_pci_device_entry* device);
void delete_proc_output_entries(struct axis_pci_device_entry* device);
void update_inputs_bitmap(struct axis_pci_device_entry * device);
void enable_axis_inputs(struct axis_pci_device_entry * device);
void init_parallel_io(struct axis_pci_device_entry * device);

#endif  //AXIS_PARALLEL_IO_H

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