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}
+)

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 <stddef.h>
+#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);
+}

thirdparty/tas/hdlc.c

@@ -10,9 +10,8 @@
 */
 
 #include <stdint.h>
-#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)
 {

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 <stdint.h>
+#include <stdbool.h>
+
+// 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

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)