aes_example.c File Reference

#include "board.h"
#include "print_funcs.h"
#include "gpio.h"
#include "pm.h"
#include "intc.h"
#include "usart.h"
#include "aes.h"

Macros
#define	AES_EXAMPLE_REFBUF_SIZE   16
Board-Related Example Settings
#define	AES_EXAMPLE_USART   (&AVR32_USART1)
#define	AES_EXAMPLE_USART_RX_PIN   AVR32_USART1_RXD_0_0_PIN
#define	AES_EXAMPLE_USART_RX_FUNCTION   AVR32_USART1_RXD_0_0_FUNCTION
#define	AES_EXAMPLE_USART_TX_PIN   AVR32_USART1_TXD_0_0_PIN
#define	AES_EXAMPLE_USART_TX_FUNCTION   AVR32_USART1_TXD_0_0_FUNCTION
#define	AES_EXAMPLE_USART_BAUDRATE   57600
#define	AES_EXAMPLE_LED1   LED0_GPIO
#define	AES_EXAMPLE_LED2   LED1_GPIO
#define	AES_EXAMPLE_LED3   LED2_GPIO
#define	AES_EXAMPLE_LED4   LED3_GPIO
Example internal states
#define	AES_EXAMPLE_STATE_1   0
#define	AES_EXAMPLE_STATE_2   1
#define	AES_EXAMPLE_STATE_3   2
#define	AES_EXAMPLE_STATE_4   3
#define	AES_EXAMPLE_STATE_5   4
#define	AES_EXAMPLE_STATE_6   5
#define	AES_EXAMPLE_STATE_7   6
#define	AES_EXAMPLE_STATE_8   7

Functions
static void	aes_int_handler (void)
	The AES interrupt handler. More...
static void	init_hmatrix (void)
	Initializes the HSB bus matrix. More...
int	main (void)
	The main function. More...

Variables
const unsigned int	CBCRefInputData [AES_EXAMPLE_REFBUF_SIZE]
const unsigned int	CBCRefOutputData [AES_EXAMPLE_REFBUF_SIZE]
volatile unsigned int	ccountt0
volatile unsigned int	ccountt1
const unsigned int	CipherKey256 [8]
volatile unsigned char	ContinueCBCProcess = true
const unsigned int	InitVectorCBC [4]
volatile unsigned int	OutputData [AES_EXAMPLE_REFBUF_SIZE]
pm_freq_param_t	pm_freq_param
volatile unsigned char	state = 0
volatile unsigned long	Tempo
volatile unsigned char	urad_evt = false
static const gpio_map_t	USART_GPIO_MAP
static const usart_options_t	USART_OPTIONS

#define AES_EXAMPLE_LED1   LED0_GPIO

Referenced by aes_int_handler().

#define AES_EXAMPLE_LED2   LED1_GPIO

Referenced by aes_int_handler().

#define AES_EXAMPLE_LED3   LED2_GPIO

Referenced by aes_int_handler().

#define AES_EXAMPLE_LED4   LED3_GPIO

Referenced by aes_int_handler().

#define AES_EXAMPLE_REFBUF_SIZE   16

Referenced by main().

#define AES_EXAMPLE_STATE_1   0

Referenced by aes_int_handler(), and main().

#define AES_EXAMPLE_STATE_2   1

Referenced by aes_int_handler(), and main().

#define AES_EXAMPLE_STATE_3   2

Referenced by aes_int_handler().

#define AES_EXAMPLE_STATE_4   3

Referenced by aes_int_handler(), and main().

#define AES_EXAMPLE_STATE_5   4

Referenced by aes_int_handler().

#define AES_EXAMPLE_STATE_6   5

#define AES_EXAMPLE_STATE_7   6

#define AES_EXAMPLE_STATE_8   7

Referenced by aes_int_handler(), and main().

#define AES_EXAMPLE_USART   (&AVR32_USART1)

Referenced by main().

#define AES_EXAMPLE_USART_BAUDRATE   57600

#define AES_EXAMPLE_USART_RX_FUNCTION   AVR32_USART1_RXD_0_0_FUNCTION

#define AES_EXAMPLE_USART_RX_PIN   AVR32_USART1_RXD_0_0_PIN

#define AES_EXAMPLE_USART_TX_FUNCTION   AVR32_USART1_TXD_0_0_FUNCTION

#define AES_EXAMPLE_USART_TX_PIN   AVR32_USART1_TXD_0_0_PIN

static void aes_int_handler ( void  )

static

The AES interrupt handler.

Note

The `__attribute__((interrupt))' (under GNU GCC for AVR32) and `__interrupt' (under IAR Embedded Workbench for Atmel AVR32) C function attributes are used to manage the `rete' instruction.

References AES_EXAMPLE_LED1, AES_EXAMPLE_LED2, AES_EXAMPLE_LED3, AES_EXAMPLE_LED4, AES_EXAMPLE_STATE_1, AES_EXAMPLE_STATE_2, AES_EXAMPLE_STATE_3, AES_EXAMPLE_STATE_4, AES_EXAMPLE_STATE_5, AES_EXAMPLE_STATE_8, aes_get_status(), aes_read_outputdata(), aes_swreset(), AES_URAT_READ_WRITEONLY, ccountt1, ContinueCBCProcess, Get_system_register, gpio_clr_gpio_pin(), OutputData, state, Tempo, and urad_evt.

Referenced by main().

static void init_hmatrix ( void  )

static

Initializes the HSB bus matrix.

Referenced by main().

int main

(

void

)

The main function.

It sets up the USART module on EXAMPLE_USART. The terminal settings are 57600 8N1. Then it sets up the interrupt handler and waits for a USART interrupt to trigger.

References AES_CBC_MODE, aes_configure(), AES_ECB_MODE, AES_EXAMPLE_REFBUF_SIZE, AES_EXAMPLE_STATE_1, AES_EXAMPLE_STATE_2, AES_EXAMPLE_STATE_4, AES_EXAMPLE_STATE_8, AES_EXAMPLE_USART, aes_int_handler(), aes_isr_configure(), AES_KEY_SIZE_128, AES_KEY_SIZE_256, AES_PMODE_CIPHER, AES_PMODE_DECIPHER, aes_set_initvector(), aes_set_key(), aes_start(), AES_START_MODE_AUTO, AES_START_MODE_MANUAL, aes_write_inputdata(), CBCRefInputData, CBCRefOutputData, ccountt0, ccountt1, aes_config_t::CFBSize, CipherKey256, ContinueCBCProcess, aes_config_t::CounterMeasureMask, aes_isrconfig_t::datrdy, Disable_global_interrupt, ENABLE, Enable_global_interrupt, Get_system_register, gpio_enable_module(), init_hmatrix(), InitVectorCBC, INTC_init_interrupts(), INTC_register_interrupt(), aes_config_t::KeySize, aes_config_t::LodMode, aes_config_t::OpMode, OutputData, pm_configure_clocks(), PM_FREQ_STATUS_FAIL, print(), print_ulong(), aes_config_t::ProcessingDelay, aes_config_t::ProcessingMode, SLEEP, aes_config_t::StartMode, state, Tempo, aes_isrconfig_t::urad, urad_evt, and usart_init_rs232().

const unsigned int CBCRefInputData[AES_EXAMPLE_REFBUF_SIZE]

Initial value:

= {
  0x6bc1bee2,
  0x2e409f96,
  0xe93d7e11,
  0x7393172a,
  0xae2d8a57,
  0x1e03ac9c,
  0x9eb76fac,
  0x45af8e51,
  0x30c81c46,
  0xa35ce411,
  0xe5fbc119,
  0x1a0a52ef,
  0xf69f2445,
  0xdf4f9b17,
  0xad2b417b,
  0xe66c3710 }

Referenced by main().

const unsigned int CBCRefOutputData[AES_EXAMPLE_REFBUF_SIZE]

Initial value:

= {
  0xf58c4c04,
  0xd6e5f1ba,
  0x779eabfb,
  0x5f7bfbd6,
  0x9cfc4e96,
  0x7edb808d,
  0x679f777b,
  0xc6702c7d,
  0x39f23369,
  0xa9d9bacf,
  0xa530e263,
  0x04231461,
  0xb2eb05e2,
  0xc39be9fc,
  0xda6c1907,
  0x8c6a9d1b }

Referenced by main().

volatile unsigned int ccountt0

Referenced by main().

volatile unsigned int ccountt1

Referenced by aes_int_handler(), and main().

const unsigned int CipherKey256[8]

Initial value:

= {
  0x603deb10,
  0x15ca71be,
  0x2b73aef0,
  0x857d7781,
  0x1f352c07,
  0x3b6108d7,
  0x2d9810a3,
  0x0914dff4
}

Referenced by main().

volatile unsigned char ContinueCBCProcess = true

Referenced by aes_int_handler(), and main().

const unsigned int InitVectorCBC[4]

Initial value:

= {
  0x00010203,
  0x04050607,
  0x08090a0b,
  0x0c0d0e0f
}

Referenced by main().

volatile unsigned int OutputData[AES_EXAMPLE_REFBUF_SIZE]

Referenced by aes_int_handler(), and main().

pm_freq_param_t pm_freq_param

Initial value:

=
{
  .cpu_f        = 12000000,
  .pba_f        = 12000000,
  .osc0_f       = FOSC0,
  .osc0_startup = OSC0_STARTUP
}

volatile unsigned char state = 0

Referenced by aes_int_handler(), and main().

volatile unsigned long Tempo

Referenced by aes_int_handler(), and main().

volatile unsigned char urad_evt = false

Referenced by aes_int_handler(), and main().

const gpio_map_t USART_GPIO_MAP

static

Initial value:

=      
{
    {AES_EXAMPLE_USART_RX_PIN, AES_EXAMPLE_USART_RX_FUNCTION},
    {AES_EXAMPLE_USART_TX_PIN, AES_EXAMPLE_USART_TX_FUNCTION}
}

const usart_options_t USART_OPTIONS

static

Initial value:

=  
{
    .baudrate     = AES_EXAMPLE_USART_BAUDRATE,
    .charlength   = 8,
    .paritytype   = USART_NO_PARITY,
    .stopbits     = USART_1_STOPBIT,
    .channelmode  = USART_NORMAL_CHMODE
}