User Interface

/* in callback function notifAes */

if (aesdynReq.status != 0) {

printf ("Error detected by HW 0x%x\n", aesdynReq.status) ;

.

.

}

3.3 Global Definitions

3.3.1 I/O Control Codes

The I/O control code is the second argument in the ioctl function. Definitions of these control codes are defined

in Sec2.h.

Internally, these values are used in conjunction with a base index to create the I/O control codes. The macro for this base index is defined by SEC2_IOCTL_INDEX and has a value of 0x0800.

Table 2. Second and Third Arguments in the ioctl Function

I/O Control Code (Second

 

Argument in ioctl Function)

Third Argument in ioctl Function

SEC2_PROC_REQ

Pointer to user's request structure

SEC2_GET_STATUS

Pointer to a STATUS_REQ

SEC2_MALLOC

Pointer to be assigned to a block of kernel memory for holding

 

caller data to be operated upon

SEC2_FREE

Pointer to free a block originally allocated by SEC2_MALLOC

SEC2_COPYFROM

Pointer to type MALLOC_REQ, which will hold information

 

about a user buffer that will be copied from user memory space

 

to kernel memory space allocated by SEC2_MALLOC

SEC2_COPYTO

Pointer to type MALLOC_REQ, which will hold information

 

about a user buffer that will be copied from kernel memory

 

space allocated by SEC2_MALLOC back to a user's buffer.

3.3.2 Channel Definitions

The NUM_CHANNELS definition is used to specify the number of channels implemented in the SEC2 device. If not specified, it will be set to a value of 4 as a default.

SEC 2.0 Reference Device Driver User’s Guide, Rev. 0

Freescale Semiconductor

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

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Freescale Semiconductor SEC2SWUG specifications Global Definitions, 1 I/O Control Codes, Channel Definitions

SEC2SWUG specifications

Freescale Semiconductor, a prominent player in the semiconductor industry, has made significant strides in developing robust solutions tailored for the automotive and industrial sectors. One such innovation is the SEC2SWUG (Security Configuration to Software User Guide), a comprehensive framework designed to enhance security protocols across various applications.

The SEC2SWUG is particularly vital in an era where cybersecurity threats are increasingly sophisticated. This tool is built to help developers implement security measures seamlessly during the software design phase, ensuring products are resilient against potential vulnerabilities. One of the main features of the SEC2SWUG is its versatility; it can be applied across a wide range of microcontrollers and processors offered by Freescale. This is particularly advantageous for engineers who require a consistent security approach across different platforms.

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