axis_des_hardware_channel Struct Reference

#include <des_io.h>

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Detailed Description

defines and controls one 3DES hardware channel

The hardware can only issue 3 concurrent DES ops at once. This structure is used to track how the des channels are allocated/free

Data Fields
unsigned	lock
unsigned char *	buffer_address
unsigned char *	register_address
wait_queue_head_t	queue
volatile int	done
volatile unsigned long	start_time

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Field Documentation

unsigned char* axis_des_hardware_channel::buffer_address

address of hardware buffer that contain DES pre and post op data

volatile int axis_des_hardware_channel::done

signal current operation has finished

unsigned axis_des_hardware_channel::lock

lock to prevent channel being reused midoperation

wait_queue_head_t axis_des_hardware_channel::queue

An operation queues waiting for an interrupt to signal completion

unsigned char* axis_des_hardware_channel::register_address

address of control register address for DES channel

volatile unsigned long axis_des_hardware_channel::start_time

used so thread can detect missing any DES interrupts

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The documentation for this struct was generated from the following file:

• des_io.h

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