diff --git a/thirdparty/tas/CMakeLists.txt b/thirdparty/tas/CMakeLists.txt new file mode 100644 index 00000000..ab4e75e7 --- /dev/null +++ b/thirdparty/tas/CMakeLists.txt @@ -0,0 +1,9 @@ +target_sources(${OBSW_NAME} PRIVATE + hdlc.c + uart.c + crc.c +) + +target_include_directories(${OBSW_NAME} PRIVATE + ${CMAKE_CURRENT_SOURCE_DIR} +) diff --git a/thirdparty/tas/crc.c b/thirdparty/tas/crc.c new file mode 100644 index 00000000..15d152b9 --- /dev/null +++ b/thirdparty/tas/crc.c @@ -0,0 +1,195 @@ +/*************************************************************************************** +* \copyright: 2020-2022 Thales Alenia Space Deutschland GmbH +* \project: multiMIND +* \file: crc.c +* \date: 22.02.2022 +* \author: David Woodward +* \brief: CRC algorithms +***************************************************************************************/ + +#include +#include "tas/crc.h" + + +const uint16_t crc16_0x1021_table[256] = { + 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, + 0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, + 0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, + 0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, + 0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485, + 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D, + 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4, + 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC, + 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, + 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, + 0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, + 0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, + 0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, + 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, + 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70, + 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78, + 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F, + 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, + 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, + 0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, + 0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, + 0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, + 0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C, + 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634, + 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB, + 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3, + 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, + 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, + 0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, + 0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, + 0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, + 0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 +}; + +const uint16_t crc16_0x1021_table_reverse[256] = +{ + 0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF, + 0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7, + 0x1081, 0x0108, 0x3393, 0x221A, 0x56A5, 0x472C, 0x75B7, 0x643E, + 0x9CC9, 0x8D40, 0xBFDB, 0xAE52, 0xDAED, 0xCB64, 0xF9FF, 0xE876, + 0x2102, 0x308B, 0x0210, 0x1399, 0x6726, 0x76AF, 0x4434, 0x55BD, + 0xAD4A, 0xBCC3, 0x8E58, 0x9FD1, 0xEB6E, 0xFAE7, 0xC87C, 0xD9F5, + 0x3183, 0x200A, 0x1291, 0x0318, 0x77A7, 0x662E, 0x54B5, 0x453C, + 0xBDCB, 0xAC42, 0x9ED9, 0x8F50, 0xFBEF, 0xEA66, 0xD8FD, 0xC974, + 0x4204, 0x538D, 0x6116, 0x709F, 0x0420, 0x15A9, 0x2732, 0x36BB, + 0xCE4C, 0xDFC5, 0xED5E, 0xFCD7, 0x8868, 0x99E1, 0xAB7A, 0xBAF3, + 0x5285, 0x430C, 0x7197, 0x601E, 0x14A1, 0x0528, 0x37B3, 0x263A, + 0xDECD, 0xCF44, 0xFDDF, 0xEC56, 0x98E9, 0x8960, 0xBBFB, 0xAA72, + 0x6306, 0x728F, 0x4014, 0x519D, 0x2522, 0x34AB, 0x0630, 0x17B9, + 0xEF4E, 0xFEC7, 0xCC5C, 0xDDD5, 0xA96A, 0xB8E3, 0x8A78, 0x9BF1, + 0x7387, 0x620E, 0x5095, 0x411C, 0x35A3, 0x242A, 0x16B1, 0x0738, + 0xFFCF, 0xEE46, 0xDCDD, 0xCD54, 0xB9EB, 0xA862, 0x9AF9, 0x8B70, + 0x8408, 0x9581, 0xA71A, 0xB693, 0xC22C, 0xD3A5, 0xE13E, 0xF0B7, + 0x0840, 0x19C9, 0x2B52, 0x3ADB, 0x4E64, 0x5FED, 0x6D76, 0x7CFF, + 0x9489, 0x8500, 0xB79B, 0xA612, 0xD2AD, 0xC324, 0xF1BF, 0xE036, + 0x18C1, 0x0948, 0x3BD3, 0x2A5A, 0x5EE5, 0x4F6C, 0x7DF7, 0x6C7E, + 0xA50A, 0xB483, 0x8618, 0x9791, 0xE32E, 0xF2A7, 0xC03C, 0xD1B5, + 0x2942, 0x38CB, 0x0A50, 0x1BD9, 0x6F66, 0x7EEF, 0x4C74, 0x5DFD, + 0xB58B, 0xA402, 0x9699, 0x8710, 0xF3AF, 0xE226, 0xD0BD, 0xC134, + 0x39C3, 0x284A, 0x1AD1, 0x0B58, 0x7FE7, 0x6E6E, 0x5CF5, 0x4D7C, + 0xC60C, 0xD785, 0xE51E, 0xF497, 0x8028, 0x91A1, 0xA33A, 0xB2B3, + 0x4A44, 0x5BCD, 0x6956, 0x78DF, 0x0C60, 0x1DE9, 0x2F72, 0x3EFB, + 0xD68D, 0xC704, 0xF59F, 0xE416, 0x90A9, 0x8120, 0xB3BB, 0xA232, + 0x5AC5, 0x4B4C, 0x79D7, 0x685E, 0x1CE1, 0x0D68, 0x3FF3, 0x2E7A, + 0xE70E, 0xF687, 0xC41C, 0xD595, 0xA12A, 0xB0A3, 0x8238, 0x93B1, + 0x6B46, 0x7ACF, 0x4854, 0x59DD, 0x2D62, 0x3CEB, 0x0E70, 0x1FF9, + 0xF78F, 0xE606, 0xD49D, 0xC514, 0xB1AB, 0xA022, 0x92B9, 0x8330, + 0x7BC7, 0x6A4E, 0x58D5, 0x495C, 0x3DE3, 0x2C6A, 0x1EF1, 0x0F78 +}; + +// CRC-32 calculation from original implementation (Sarthak) +// The used algorithm is (most likely) CRC32/BZIP2, as found here: +// https://www.cl.cam.ac.uk/research/srg/projects/fairisle/bluebook/21/crc/node6.html +uint32_t Crc32(const uint8_t *msg, int numBytes, uint32_t remainder) { + + int byte; + unsigned char bit; + + // Perform modulo-2 division, a byte at a time. + for (byte = 0; byte < numBytes; ++byte) + { + // Bring the next byte into the remainder. + remainder ^= (*(msg + byte) << 16); + + // Perform modulo-2 division, a bit at a time. + for (bit = 8; bit > 0; --bit) { + + // Try to divide the current data bit. + if (remainder & CRC32_TOPBIT) { + remainder = (remainder << 1) ^ CRC32_POLYNOMIAL; + } + else { + remainder = (remainder << 1); + } + } + } + + // The final remainder is the CRC result. + return remainder; +} + +// ref.: CRC-16/CCITT-FALSE, alias: CRC-16/AUTOSAR +// https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-xmodem +// initial: 0xFFFF, xorOut: 0x0000, RefIn: false, RefOut: false, polynomial: 0x1021 +uint16_t calc_crc16_unreflected(const uint8_t *data, uint32_t len, uint16_t remainder, uint16_t final_xor) +{ + uint16_t crc = remainder; + uint16_t temp; + + // unreflected + while (len-- != 0) + { + temp = (*data++ ^ (crc >> 8)) & 0xff; + crc = crc16_0x1021_table[temp] ^ (crc << 8); + } + + crc ^= final_xor; + + return crc; +} + +void calc_crc16_byte_unreflected(uint16_t *crc16, uint8_t bt) +{ + uint16_t temp; + temp = *crc16; + + // unreflected + *crc16 = crc16_0x1021_table[((temp >> 8) ^ bt) & 0xff] ^ (temp << 8); +} + +// initial: 0xFFFF, xorOut: 0x0000, RefIn: false, RefOut: false, polynomial: 0x1021 +uint16_t calc_crc16_buff_unreflected(uint8_t *data, uint16_t len) +{ + uint16_t crc16 = 0xFFFF; + + // unreflected + while (len-- != 0) + { + crc16 = crc16_0x1021_table[((crc16 >> 8) ^ *data++) & 0xff] ^ (crc16 << 8); + } + + return crc16; +} + +// ref.: CRC-16/X25 +// initial: 0xFFFF, xorOut: 0xFFFF, RefIn: true, RefOut: true, polynomial: 0x1021 +uint16_t calc_crc16_reflected(const uint8_t *data, uint32_t len, uint16_t remainder, uint16_t final_xor) +{ + uint16_t crc16 = remainder; + + // reflected + while (len-- != 0) + { + crc16 = crc16_0x1021_table_reverse[(crc16 ^ *data++) & 0xff] ^ (crc16 >> 8); + } + + return (crc16 ^ final_xor); +} + +void calc_crc16_byte_reflected(uint16_t *crc16, uint8_t bt) +{ + uint16_t temp; + temp = *crc16; + + // reflected + *crc16 = crc16_0x1021_table_reverse[(temp ^ bt) & 0xff] ^ (temp >> 8); +} + +// initial: 0xFFFF, xorOut: 0xFFFF, RefIn: true, RefOut: true, polynomial: 0x1021 +uint16_t calc_crc16_buff_reflected(uint8_t *data, uint16_t len) +{ + uint16_t crc16 = 0xFFFF; + + // reflected + while (len-- != 0) + { + crc16 = crc16_0x1021_table_reverse[(crc16 ^ *data++) & 0xff] ^ (crc16 >> 8); + } + + return (crc16 ^ 0xFFFF); +} diff --git a/thirdparty/tas/hdlc.c b/thirdparty/tas/hdlc.c index 0c668073..6debec9c 100644 --- a/thirdparty/tas/hdlc.c +++ b/thirdparty/tas/hdlc.c @@ -10,9 +10,8 @@ */ #include -#include "hdlc.h" -#include "spacepacket.h" -#include "crc.h" +#include "tas/hdlc.h" +#include "tas/crc.h" static void hdlc_add_byte(uint8_t ch, uint8_t *buff, uint16_t *pos) { diff --git a/thirdparty/tas/tas/crc.h b/thirdparty/tas/tas/crc.h new file mode 100644 index 00000000..f92664b2 --- /dev/null +++ b/thirdparty/tas/tas/crc.h @@ -0,0 +1,107 @@ +/*************************************************************************************** +* \copyright: 2020-2022 Thales Alenia Space Deutschland GmbH +* \project: multiMIND +* \file: crc.c +* \date: 22.02.2022 +* \author: David Woodward +* \brief: CRC algorithms +***************************************************************************************/ + +#ifndef TAS_D_C_CRC_H +#define TAS_D_C_CRC_H + +#include +#include + +// NOTE: These defines are in the header as some are needed for (initial) crc function calls +//CRC-32/BZIP2 +#define CRC32_TOPBIT (1UL<<31) +#define CRC32_POLYNOMIAL 0x04C11DB7 +#define CRC32_INITIAL_REMAINDER 0xFFFFFFFF +#define CRC32_FINAL_XOR_VALUE 0xFFFFFFFF + +// CRC-16/CCITT-FALSE +#define CRC16_INITIAL_REMAINDER 0xFFFF +#define CRC16_FINAL_XOR_VALUE 0x0 + +extern const uint16_t crc16_0x1021_table[256]; + +extern const uint16_t crc16_0x1021_table_reverse[256]; + +/** + * \brief CRC-32/BZIP2 algorithm + */ +uint32_t Crc32(const uint8_t *msg, int numBytes, uint32_t remainder); + + +/** + * \brief CRC-16/CCITT-FALSE (alias CRC-16/AUTOSAR) algorithm, +// initial: 0xFFFF, xorOut: 0x0000, RefIn: false, RefOut: false, polynomial: 0x1021 + * using a lookup table + * \param data Data + * \param len Data length + * \param remainder Remainder to be used, + * use initial remainder for non coherent/standalone calculations + * \param final_xor The value that the final result will be xored + * \return CRC result + */ +uint16_t calc_crc16_unreflected(const uint8_t *data, uint32_t len, uint16_t remainder, uint16_t final_xor); + +/** + * generates a 16-bit CRC for the said data + * + * @param data input data for CRC + * @param len length of the data + * @return crc Generated 16-bit CRC + */ +void calc_crc16_byte_unreflected(uint16_t *crc16, uint8_t bt); + +/** + * \brief CRC-16/CCITT-FALSE (alias CRC-16/AUTOSAR) algorithm, + * polynomial: 0x1021, initial: 0xFFFF, final xor: 0x0, + * using a lookup table + * \param data Data + * \param len Data length + * \param remainder Remainder to be used, + * use initial remainder for non coherent/standalone calculations + * \param final_xor The value that the final result will be xored + * \return CRC result + */ +uint16_t calc_crc16_buff_unreflected(uint8_t *data, uint16_t len); + +/** + * \brief CRC-16/X25 algorithm, + * initial: 0xFFFF, xorOut: 0xFFFF, RefIn: true, RefOut: true, polynomial: 0x1021 + * using a lookup table + * \param data Data + * \param len Data length + * \param remainder Remainder to be used, + * use initial remainder for non coherent/standalone calculations + * \param final_xor The value that the final result will be xored + * \return CRC result + */ +uint16_t calc_crc16_reflected(const uint8_t *data, uint32_t len, uint16_t remainder, uint16_t final_xor); + +/** + * \brief CRC-16/X25 algorithm, + * calculates the crc16 for the next byte, given an already calculated crc16 + * + * @param *crc16 : calculated crc16 - the value will be updated + * @param bt : next byte for crc16 calculation + * @return none + */ +void calc_crc16_byte_reflected(uint16_t *crc16, uint8_t bt); + +/** + * \brief CRC-16/X25 algorithm, + * initial: 0xFFFF, xorOut: 0xFFFF, RefIn: true, RefOut: true, polynomial: 0x1021 + * using a lookup table + * \param data Data + * \param len Data length + * \param remainder Remainder to be used, + * use initial remainder for non coherent/standalone calculations + * \param final_xor The value that the final result will be xored + * \return CRC result + */ +uint16_t calc_crc16_buff_reflected(uint8_t *data, uint16_t len); +#endif diff --git a/thirdparty/tas/hdlc.h b/thirdparty/tas/tas/hdlc.h similarity index 100% rename from thirdparty/tas/hdlc.h rename to thirdparty/tas/tas/hdlc.h diff --git a/thirdparty/tas/uart.h b/thirdparty/tas/tas/uart.h similarity index 100% rename from thirdparty/tas/uart.h rename to thirdparty/tas/tas/uart.h diff --git a/thirdparty/tas/uart.c b/thirdparty/tas/uart.c index 51ce59d8..11e118ed 100644 --- a/thirdparty/tas/uart.c +++ b/thirdparty/tas/uart.c @@ -9,8 +9,8 @@ ************************************************************************************** */ -#include "uart.h" -#include "hdlc.h" +#include "tas/uart.h" +#include "tas/hdlc.h" #ifdef HDLC_ENABLE #define HDLC_RX_STATE_IDLE (0u)