CEBF746 Module.. with TPM
Dependencies: cube_CEBF746 cube_crypto cube_crc_16
main.cpp
- Committer:
- gandol2
- Date:
- 2016-10-24
- Revision:
- 9:43c097befe90
- Parent:
- 8:e20fe81cddbb
File content as of revision 9:43c097befe90:
// firmware for CBEF746 // ======== SPI Slave Pin // PA5 - SCK // PA6 - MISO // PA7 - MOSI // PA14 - SEL // ======== I2C Pin for TPM // PB9 - SDA // PB8 - SCL #include "mbed.h" #include "lib_CEBF746.h" #include "lib_crc.h" #include "cube_crypto.h" #define DEBUG_SPI #ifdef DEBUG_SPI #define PRINTD(arg1,arg2...) printf(arg1,##arg2) #endif // ======== SPI Slave Pin define #define SPI_MOSI PA_7 #define SPI_MISO PA_6 #define SPI_SCLK PA_5 #define SPI_SSEL PA_4 #define SPI_CONFIG_BIT 8 #define SPI_CONFIG_FREQUENCY 1000000 // 1Mhz //#define SPI_CONFIG_FREQUENCY 50000000 // 50Mhz #define SPI_INTERRUPT 0 Serial pc_serial(USBTX, USBRX); #if SPI_INTERRUPT InterruptIn spi_interrupt(SPI_SSEL); // Falling Edge #endif /* SPI_INTERRUPT */ SPISlave spi_slave(SPI_MOSI, SPI_MISO, SPI_SCLK, SPI_SSEL); // MOSI, MISO, SCLK(CLK), SSEL(CS)=NC uint8_t cebBufEncrypt[CEB_BUF_SIZE] = {}; // 암호화 예정 버퍼 uint8_t cebBufEncrypted[CEB_BUF_SIZE] = {}; // 암호화 완료된 버퍼 uint8_t cebBufDecrypt[CEB_BUF_SIZE] = {}; // 복호화 예정 버퍼 uint8_t cebBufDecrypted[CEB_BUF_SIZE] = {}; // 복호화 완료된 버퍼 extern uint8_t readSelfTestValidateData[CEB_BUF_SIZE]; extern uint8_t writeSelfTestValidateData[CEB_BUF_SIZE]; #if SPI_INTERRUPT bool spi_receive_wait(void) { #define ISR_TIMEOUT 100 int timeout; while(!spi_slave.receive()) // wait SPI data input... { timeout++; if(ISR_TIMEOUT <= timeout) { pc_serial.printf("spi isr timeout\n"); return false; } } return true; } void execute_spi_slave_isr( void ) { char cebf746Func; spi_receive_wait(); cebf746Func = spi_slave.read(); switch(cebf746Func) { case 0x01: // FUNC_STATUS_REG //spi_receive_wait(); //printf("[DEBUG] [M to S] eepAddr=0x%02x\n",eepAddr); //for(int i=0;i<3;i++) { spi_slave.reply( retCnt ); //++eepAddr; //printf("[0x%02x] ",spiMulti); } printf("[DEBUG] [M to S] retCnt [0x%02X]\n", retCnt); retCnt--; break; } /* // backup code #define ISR_TIMEOUT 100 int timeout; char cebf746Func = 0; //pc_serial.printf("init spi inturrupt!!\n"); timeout = 0; while(!spi_slave.receive()) // wiat for cebf746 func byte (first byte) { timeout++; if(ISR_TIMEOUT <= timeout) { pc_serial.printf("spi isr timeout\n"); return; } } cebf746Func = spi_slave.read(); // read cebf746 func byte //pc_serial.printf("[0x%02X]\n", cebf746Func); switch(cebf746Func) { case 0x01: // FUNC_STATUS_REG while(!spi_slave.receive()); spi_slave.reply( retCnt ); // return code while(!spi_slave.receive()); spi_slave.reply( retCnt+1 ); // return code while(!spi_slave.receive()); spi_slave.reply( retCnt+2 ); // return code break; } pc_serial.printf("return code : 0x%02X \n", 0xBB); pc_serial.printf("data : 0x%02X \n", retCnt); retCnt++; */ } void SPI_InitInterrupt() { spi_interrupt.rise(&execute_spi_slave_isr); spi_interrupt.enable_irq(); //spi_interrupt.mode(PullDown); // Pull down input //spi_interrupt.fall(&execute_spi_slave_isr); // Attach the isr address to the falling edge interrupt PRINTD("SPI Interrupt Init.. OK\n"); } #endif /* SPI_INTERRUPT */ /** @brief slave init * */ void SPI_InitSlave() { spi_slave.format(SPI_CONFIG_BIT,0); spi_slave.frequency(SPI_CONFIG_FREQUENCY); PRINTD("SPI Init.. Packet bit size=[%d] Frequency=[%d]Mhz\n", SPI_CONFIG_BIT, (SPI_CONFIG_FREQUENCY/1000000)); PRINTD("SPI Init.. OK\n"); } Timeout receiveTimeOut; bool timeOut = false; #define CEBF746_TIMEOUT 10 // 1 sec uint8_t slave_read_byte() { while(!spi_slave.receive()); // ★★★★ 마스터 쪽에서 패킷이 수신 안됐을 경우 loop에서 나오지 못함. 예외 처리(time out) 적용 해야함. return spi_slave.read(); } void slave_write_byte(uint8_t txData) { spi_slave.reply( txData ); while(!spi_slave.receive()); // ★★★★ 마스터 쪽에서 패킷이 수신 안됐을 경우 loop에서 나오지 못함. 예외 처리(time out) 적용 해야함. spi_slave.read(); } void slave_read_uint16(uint16_t* buf16) { uint16_t temp; temp = slave_read_byte(); *buf16 = temp << 8; temp = slave_read_byte(); *buf16 |= temp; //*buf16 = (slave_read_byte() << 8) | (slave_read_byte()); } void slave_read_multi_byte(uint8_t* buf, int size) { for(int iCnt = 0 ; iCnt < size ; ++iCnt) *(buf+iCnt) = slave_read_byte(); } void slave_write_multi_byte(uint8_t* buf, int size) { for(int iCnt = 0 ; iCnt < size ; ++iCnt) slave_write_byte(*(buf+iCnt)); } void slave_write_packet(spiDataStr* packet) { slave_write_byte((packet->size >> 8) & 0xFF); slave_write_byte((packet->size ) & 0xFF); slave_write_multi_byte(packet->buf, packet->size); slave_write_byte((packet->crc16 >> 8) & 0xFF); slave_write_byte((packet->crc16 ) & 0xFF); } #define YSH_CODE 1 #if YSH_CODE cube_sec_context tempContext; #endif /** @brief main function ################################################################### * */ int main() { sec_spi_data tempConvertStruct; uint8_t spiRxTempBuf = 0; bool crcCheck = false; uint16_t genCrc = 0; spiDataStr txData; spiDataStr rxData; pc_serial.printf("\n\n========== CEBF746 SPI Slave [Start] ==========\n"); SPI_InitSlave(); cube_sec_init(); Thread encrypt(cube_Thread_AES_encrypt, NULL, osPriorityNormal, DEFAULT_STACK_SIZE); Thread decrypt(cube_Thread_AES_decrypt, NULL, osPriorityNormal, DEFAULT_STACK_SIZE); #if SPI_INTERRUPT SPI_InitInterrupt(); while(1); #endif /* SPI_INTERRUPT */ while(1) { pc_serial.printf("\n\nwaiting CEBF746 cmd...\n"); spiRxTempBuf = slave_read_byte(); //printf("menu[%02X]\n", spiRxTempBuf); //cebf746_print_cmd(spiRxTempBuf); switch(spiRxTempBuf) { case FUNC_READ_STATUS: slave_write_byte( cube_get_status() ); printf("[INFO] Response Status reg [%02X]\n", cube_get_status()); break; case FUNC_WRITE_ENC_DATA: // 161020_1차 테스트 완료 uint16_t packetSize = 0; uint8_t tempBuf[CEB_BUF_SIZE] = {0, }; uint16_t retCrc = 0; packetSize = 0; slave_read_uint16(&packetSize); if(packetSize != CEB_BUF_SIZE) { printf("[ERROR] %s : %d : packet size error, recived packet size[%d]\n", __FILE__, __LINE__, packetSize); continue; } slave_read_multi_byte(tempBuf, CEB_BUF_SIZE); slave_read_uint16(&retCrc); cube_crc_16(CEB_BUF_SIZE, tempBuf, &genCrc); crcCheck = cube_crc_compare(retCrc, genCrc); if(true == crcCheck ) slave_write_byte(WRITE_SELF_TEST_RET_CODE); else slave_write_byte(0x00); _cebf746_print_packet(packetSize, tempBuf, retCrc); if(true == crcCheck ) { /// ★★★여기서 윤주임코드 암호화 스레드 동작할수 있게 flag setting 해야함!! tempConvertStruct.cmd = 0x42; // 0b01000010 tempConvertStruct.data = tempBuf; tempConvertStruct.key_crc = NULL; //cube_crypt_spi_cmd_set(&tempContext, 0x02,tempBuf, 0); cube_crypt_spi_cmd_set(&tempConvertStruct); pc_serial.printf("call \"cube_crypt_spi_cmd_set()\"\n"); } else { printf("[ERROR] %s : %d : FUNC_WRITE_ENC_DATA CRC Error\n", __FILE__, __LINE__); } break; case FUNC_READ_ENC_DATA: //uint16_t keyCrc = 0xAABB; // ★★★★ 윤주임 코드 들어오면 keyCrc 참조 변경 해야함 //packetLength = CEB_BUF_SIZE+2; // ★★★★ status reg 읽어오는 부분이 문제가 있는듯함 여기를 먼저 고쳐야함 if(cube_get_status() == 0x02) // 암호화가 완료 되었으면 { //printf("..\n"); /* tempConvertStruct.cmd = 0x02; // 0b01000010 tempConvertStruct.data = tempBuf; tempConvertStruct.key_crc = NULL; cube_crypt_spi_cmd_set(&tempConvertStruct); */ txData = getEncTxPacket(); slave_write_packet(&txData); cebf746_print_packet(&txData); /* */ /* memcpy(spiTXBuf, cebBufEncrypted, CEB_BUF_SIZE); // encrypted data copy spiTXBuf[CEB_BUF_SIZE + 0] = ((keyCrc >> 8) & 0xFF); // upper key crc copy spiTXBuf[CEB_BUF_SIZE + 1] = ((keyCrc ) & 0xFF); // lower key crc copy cebf746_set_packet(&txData, packetLength, spiTXBuf); */ //_cebf746_print_packet(packetLength, spiTXBuf, genCrc); } else { // printf("xx\n"); } break; case FUNC_WRITE_DEC_DATA: break; case FUNC_READ_DEC_DATA: break; case FUNC_WRITE_SELF_TEST: // 161017_KSS_Test OK slave_read_uint16(&rxData.size); rxData.buf = (uint8_t*)malloc(rxData.size); slave_read_multi_byte(rxData.buf, rxData.size); slave_read_uint16(&rxData.crc16); cube_crc_16(rxData.size, rxData.buf, &genCrc); crcCheck = cube_crc_compare(rxData.crc16, genCrc); if(true == crcCheck ) slave_write_byte(WRITE_SELF_TEST_RET_CODE); else slave_write_byte(0x00); // ----- print rx buf cebf746_print_packet(&rxData); pc_serial.printf("crc read[%04X], gen[%04X] check...", rxData.crc16, genCrc); if(true == crcCheck ) pc_serial.printf("[OK]\n"); else pc_serial.printf("[FAIL]\n"); // ----- free() free(rxData.buf); break; case FUNC_READ_SELF_TEST: // 161017_KSS_Test OK cebf746_set_packet(&txData, CEB_BUF_SIZE, readSelfTestValidateData); slave_write_packet(&txData); printf("--FUNC_READ_SELF_TEST end\n"); break; } } }//end of main