nes-proj/cpu/mc1322x/tests/asm.c

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2011-02-27 22:37:37 +00:00
/*
* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
* to the MC1322x project (http://mc1322x.devl.org)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of libmc1322x: see http://mc1322x.devl.org
* for details.
*
*
*/
#include <mc1322x.h>
#include <board.h>
#include <stdio.h>
#include "tests.h"
#include "config.h"
void asm_isr(void) {
printf("asm isr\n\r");
ASM->CONTROL0bits.CLEAR_IRQ = 1;
}
void main(void) {
volatile int i;
/* trim the reference osc. to 24MHz */
trim_xtal();
uart_init(UART1, 115200);
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vreg_init();
enable_irq(ASM);
print_welcome("asm");
printf("ASM Control 0: %08x\n\r", (unsigned int)ASM->CONTROL0);
printf("ASM Control 1: %08x\n\r", (unsigned int)ASM->CONTROL1);
printf("ASM Status: %08x\n\r", (unsigned int)ASM->STATUS);
printf("ASM Test pass: %d\n\r", ASM->STATUSbits.TEST_PASS);
/* ASM module is disabled until self-test passes */
printf("\n\r*** ASM self-test ***\n\r");
ASM->CONTROL1bits.ON = 1;
ASM->CONTROL1bits.SELF_TEST = 1;
ASM->CONTROL0bits.START = 1;
/* Self test takes 3330 periph. clocks (default 24Mhz) */
/* to complete. This doesn't wait 3330 exactly, but should be long enough */
for(i = 0; i < 3330; i++) { continue; }
printf("ASM Test pass: %d\n\r", ASM->STATUSbits.TEST_PASS);
/* must clear the self test bit when done */
ASM->CONTROL1bits.SELF_TEST = 0;
/* ASM starts in "BOOT" mode which uses an internal secret key
* to load encrypted data from an external source */
/* must set to NORMAL mode */
ASM->CONTROL1bits.NORMAL_MODE = 1;
/* setting the bypass bit will disable the encryption */
/* bypass defaults to off */
ASM->CONTROL1bits.BYPASS = 0;
printf("\n\r*** set ASM key ***\n\r");
ASM->KEY0 = 0xccddeeff;
ASM->KEY1 = 0x8899aabb;
ASM->KEY2 = 0x44556677;
ASM->KEY3 = 0x00112233;
/* KEY registers appear to be write-only (which is a good thing) */
/* even though the datasheet says you can read them */
printf("ASM Key [3,2,1,0] : 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->KEY3,
(unsigned int) ASM->KEY2,
(unsigned int) ASM->KEY1,
(unsigned int) ASM->KEY0);
printf("\n\r*** CTR test ***\n\r");
printf("Encrypt\n\r");
ASM->CONTROL1bits.CTR = 1;
ASM->DATA0 = 0xdeaddead;
ASM->DATA1 = 0xbeefbeef;
ASM->DATA2 = 0xfaceface;
ASM->DATA3 = 0x01234567;
printf("ASM Data [3,2,1,0] : 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->DATA3,
(unsigned int) ASM->DATA2,
(unsigned int) ASM->DATA1,
(unsigned int) ASM->DATA0);
ASM->CTR0 = 0x33333333;
ASM->CTR1 = 0x22222222;
ASM->CTR2 = 0x11111111;
ASM->CTR3 = 0x00000000;
printf("ASM CTR [3,2,1,0] : 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->CTR3,
(unsigned int) ASM->CTR2,
(unsigned int) ASM->CTR1,
(unsigned int) ASM->CTR0);
ASM->CONTROL0bits.START = 1;
while(ASM->STATUSbits.DONE == 0) { continue; }
printf("ASM CTR RESULT [3,2,1,0]: 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->CTR3_RESULT,
(unsigned int) ASM->CTR2_RESULT,
(unsigned int) ASM->CTR1_RESULT,
(unsigned int) ASM->CTR0_RESULT);
printf("Decrypt\n\r");
ASM->DATA0 = ASM->CTR0_RESULT;
ASM->DATA1 = ASM->CTR1_RESULT;
ASM->DATA2 = ASM->CTR2_RESULT;
ASM->DATA3 = ASM->CTR3_RESULT;
ASM->CONTROL0bits.START = 1;
while(ASM->STATUSbits.DONE == 0) { continue; }
printf("ASM CTR RESULT [3,2,1,0]: 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->CTR3_RESULT,
(unsigned int) ASM->CTR2_RESULT,
(unsigned int) ASM->CTR1_RESULT,
(unsigned int) ASM->CTR0_RESULT);
printf("\n\r*** CBC MAC generation ***\n\r");
ASM->CONTROL1bits.CTR = 0;
ASM->CONTROL1bits.CBC = 1;
/* CBC is like a hash */
/* it doesn't use the CTR data */
/* the accumulated MAC is in the MAC registers */
/* you must use the CLEAR bit to reset the MAC state */
ASM->DATA0 = 0xdeaddead;
ASM->DATA1 = 0xbeefbeef;
ASM->DATA2 = 0xfaceface;
ASM->DATA3 = 0x01234567;
ASM->CONTROL0bits.CLEAR = 1;
ASM->CONTROL0bits.START = 1;
while(ASM->STATUSbits.DONE == 0) { continue; }
printf("ASM CBC RESULT [3,2,1,0]: 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->CBC3_RESULT,
(unsigned int) ASM->CBC2_RESULT,
(unsigned int) ASM->CBC1_RESULT,
(unsigned int) ASM->CBC0_RESULT);
printf("\n\r*** CCM (CTR+CBC) ***\n\r");
ASM->CONTROL1bits.CTR = 1;
ASM->CONTROL1bits.CBC = 1;
ASM->CONTROL0bits.CLEAR = 1;
ASM->CONTROL0bits.START = 1;
while(ASM->STATUSbits.DONE == 0) { continue; }
printf("ASM CTR RESULT [3,2,1,0]: 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->CTR3_RESULT,
(unsigned int) ASM->CTR2_RESULT,
(unsigned int) ASM->CTR1_RESULT,
(unsigned int) ASM->CTR0_RESULT);
printf("ASM CBC RESULT [3,2,1,0]: 0x%08x%08x%08x%08x\n",
(unsigned int) ASM->CBC3_RESULT,
(unsigned int) ASM->CBC2_RESULT,
(unsigned int) ASM->CBC1_RESULT,
(unsigned int) ASM->CBC0_RESULT);
while(1) {
}
}