axis_sram.h

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/****************************************************************************
*
*     Axis 2 PCI Linux Kernel driver
*     File:    axis_sram.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_SRAM_H
#define AXIS_SRAM_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_H
    #include "axis.h"
#endif //AXIS_H

#ifndef AXIS_HARDWARE_H
    #include "axis_hardware.h"
#endif //AXIS_HARDWARE_H
#ifndef AXIS_PCI_H
    #include "axis_pci.h"
#endif //AXIS_pci_H

#include "axis_sram_config.h"
#define AXIS_SRAM_ENABLE_OFFSET                 (0x0+CONTROL_OFFSET)


int build_sram_config(struct axis_pci_device_entry * device);
void delete_sram_config(struct axis_pci_device_entry * device);
void create_proc_sram_entries(struct axis_pci_device_entry* device);
void delete_proc_sram_entries(struct axis_pci_device_entry* device);

extern struct sram_config_entry axis_sram_config[] ;    //defined in axis_sram_config.h
extern struct file_operations ram_file_operations ;

#define LONG_SHIFT              4

struct access_control_entry
{
    unsigned long access_mask[4] ;
    unsigned long access_control_length;
    unsigned long * access_control_address ;
} ;

#define AXIS_READ_ENABLED  (1<<0)
#define AXIS_WRITE_ENABLED (1<<1)
#define AXIS_AUTO_ACCESS    (1<<2)

struct sram_access_control
{
    struct access_control_entry read_access ;
    struct access_control_entry write_access ;
    unsigned int current_access ;
} ;


struct sram_block
{
    struct list_head list;                      
    struct semaphore enable_lock ;              
    unsigned long relative_start ;              
    unsigned long physical_start ;              
    unsigned char * virtual_start ;             
    unsigned long length   ;                    
    struct sram_access_control access_control ; 
    struct axis_pci_device_entry * device ;     
    struct sram_config_entry * config ;         
    struct mtd_info sram_mtd_info ;             
    unsigned minor_number ;                     
    int mtd_active  ;                           
    char name [32 ] ;                           
    struct proc_dir_entry * proc_directory;     
} ;




#endif //AXIS_SRAM_H

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