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