des_io.h File Reference

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Detailed Description

Defines structures and defines need for DES support.

Author:

Andrew Roca

Defines structures and defines used by the driver to manage DES operations

#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>
#include "axis_hardware.h"

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Data Structures
struct	axis_des_hardware_key
	defines and controls the use of a key slot in the axis 3DES hardware More...
struct	axis_des_hardware_channel
	defines and controls one 3DES hardware channel More...
struct	axis_des_key
	Struct tracks a key and its properties. More...
struct	crypto_state
	associates a key (crypto session) and a hardware device More...
struct	axis_des_op
	Structure to contain a DES operation. More...
Defines
#define	DES_A_REG   (0x50+CONTROL_OFFSET)
#define	DES_B_REG   (0x54+CONTROL_OFFSET)
#define	DES_C_REG   (0x58+CONTROL_OFFSET)
#define	DES_D_REG   (0x5C+CONTROL_OFFSET)
#define	DES_A_BUFFER   (0)
#define	DES_B_BUFFER   (0x200)
#define	DES_C_BUFFER   (0x400)
#define	DES_D_BUFFER   (0x600)
#define	DES_START_BIT   (1<<0)
#define	DES_ENCRYPT_BIT   (1<<1)
#define	DES_MASTER_BIT   (1<<2)
#define	HEBER_DES3_BLOCK_SIZE   8
#define	HEBER_DES3_KEY_SIZE   24
#define	NUMBER_OF_KEY_STORES   16
#define	NUMBER_OF_DES_CHANNELS   3
#define	MAX_DES_OPS   512
#define	KEY_SIZE   192
#define	INTERNAL_KEY_SIZE   0x20
Functions
void	init_axis_des_hardware_key (struct axis_des_hardware_key *ptr, unsigned char *addr, unsigned char *reg, int index)
	Function to initalise hardware key structure prior to use.
void	init_axis_des_hardware_channel (struct axis_des_hardware_channel *ptr, unsigned char *reg, unsigned char *buffer, unsigned index)
	Initalise a DES hardware channel structure.
void	init_axis_des_core (struct axis_pci_device_entry *device)
	Performs initalisation of DES structures.
Variables
file_operations	crypto_file_operations
	Define a file operations structure for cryptographic devices.

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Define Documentation

#define DES_A_BUFFER   (0)

#define DES_A_REG   (0x50+CONTROL_OFFSET)

#define DES_B_BUFFER   (0x200)

#define DES_B_REG   (0x54+CONTROL_OFFSET)

#define DES_C_BUFFER   (0x400)

#define DES_C_REG   (0x58+CONTROL_OFFSET)

#define DES_D_BUFFER   (0x600)

#define DES_D_REG   (0x5C+CONTROL_OFFSET)

#define DES_ENCRYPT_BIT   (1<<1)

#define DES_MASTER_BIT   (1<<2)

#define DES_START_BIT   (1<<0)

#define HEBER_DES3_BLOCK_SIZE   8

#define HEBER_DES3_KEY_SIZE   24

#define INTERNAL_KEY_SIZE   0x20

#define KEY_SIZE   192

#define MAX_DES_OPS   512

#define NUMBER_OF_DES_CHANNELS   3

#define NUMBER_OF_KEY_STORES   16

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Function Documentation

void init_axis_des_core (  struct axis_pci_device_entry *  device  )

Performs initalisation of DES structures. Parameters: device  - hardware master structure Returns: none Performs initalisation of the DES structures in the master structure

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void init_axis_des_hardware_channel (  struct axis_des_hardware_channel *  ptr, unsigned char *  reg, unsigned char *  buffer, unsigned  index )

Initalise a DES hardware channel structure. Parameters: ptr  - structure to initalise reg  - address of control register associated with DES channel buffer  - address of channels storage in Axis device index  - DES channels id number Returns: none Initalise a DES hardware channel structure, called as part of the initialisation of a new instance of Axis hardware

void init_axis_des_hardware_key (  struct axis_des_hardware_key *  ptr, unsigned char *  addr, unsigned char *  reg, int  index )

Function to initalise hardware key structure prior to use. Parameters: ptr  - structure to initalise addr  - address of key in Axis device reg  - address of control register associated with key index  - keys id number Returns: none Function to initalise hardware key structure prior to use, called as part of the initialisation of a new instance of Axis hardware

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Variable Documentation

struct file_operations crypto_file_operations

Define a file operations structure for cryptographic devices.

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