kopia lustrzana https://github.com/N0BOY/FT8CN
626 wiersze
18 KiB
C
626 wiersze
18 KiB
C
#ifdef __linux__
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#endif
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#include "unpack.h"
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#include "text.h"
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// #include <stdio.h>//为防止警告
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#include <string.h>
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#include "hash22.h"
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#define MAX22 ((uint32_t)4194304L)
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#define NTOKENS ((uint32_t)2063592L)
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#define MAXGRID4 ((uint16_t)32400L)
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// n28 is a 28-bit integer, e.g. n28a or n28b, containing all the
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// call sign bits from a packed message.
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int unpack_callsign(uint32_t n28, uint8_t ip, uint8_t i3, char *result,hashCode * hash) {
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// Check for special tokens DE, QRZ, CQ, CQ_nnn, CQ_aaaa
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hash->hash10=0;
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hash->hash12=0;
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hash->hash22=0;
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if (n28 < NTOKENS) {
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if (n28 <= 2) {
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if (n28 == 0)
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strcpy(result, "DE");
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if (n28 == 1)
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strcpy(result, "QRZ");
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if (n28 == 2)
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strcpy(result, "CQ");
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return 0; // Success
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}
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if (n28 <= 1002) {
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// CQ_nnn with 3 digits
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strcpy(result, "CQ ");
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int_to_dd(result + 3, n28 - 3, 3, false);
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return 0; // Success
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}
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if (n28 <= 532443L) {
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// CQ_aaaa with 4 alphanumeric symbols
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uint32_t n = n28 - 1003;
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char aaaa[5];
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aaaa[4] = '\0';
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for (int i = 3; /* */; --i) {
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aaaa[i] = charn(n % 27, 4);
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if (i == 0)
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break;
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n /= 27;
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}
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strcpy(result, "CQ ");
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strcat(result, trim_front(aaaa));
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return 0; // Success
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}
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// ? TODO: unspecified in the WSJT-X code
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return -1;
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}
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n28 = n28 - NTOKENS;
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if (n28 < MAX22) {
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hash->hash10=n28;//把哈希值保存下来
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hash->hash12=n28;//把哈希值保存下来
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hash->hash22=n28;//把哈希值保存下来
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LOG_PRINTF("N28 HASH: %0x",n28);
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// This is a 22-bit hash of a result
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// TODO: implement
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strcpy(result, "<...>");
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// result[0] = '<';
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// int_to_dd(result + 1, n28, 7, false);
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// result[8] = '>';
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// result[9] = '\0';
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return 0;
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}
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// Standard callsign
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uint32_t n = n28 - MAX22;
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char callsign[7];
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callsign[6] = '\0';
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callsign[5] = charn(n % 27, 4);
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n /= 27;
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callsign[4] = charn(n % 27, 4);
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n /= 27;
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callsign[3] = charn(n % 27, 4);
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n /= 27;
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callsign[2] = charn(n % 10, 3);
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n /= 10;
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callsign[1] = charn(n % 36, 2);
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n /= 36;
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callsign[0] = charn(n % 37, 1);
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// Skip trailing and leading whitespace in case of a short callsign
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//短呼号时跳过尾随和前导空格
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strcpy(result, trim(callsign));
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if (strlen(result) == 0)
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return -1;
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hash->hash10=hashcall_10(result);//对呼号进行22位的哈希
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hash->hash12=hashcall_12(result);//对呼号进行22位的哈希
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hash->hash22=hashcall_22(result);//对呼号进行22位的哈希
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// Check if we should append /R or /P suffix
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//检查是否应附加/R或/P后缀
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if (ip) {
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if (i3 == 1) {
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strcat(result, "/R");
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} else if (i3 == 2) {
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strcat(result, "/P");
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}
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}
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return 0; // Success
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}
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//int unpack_type1(const uint8_t *a77, uint8_t i3, char *call_to, char *call_de, char *extra) {
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// uint32_t n28a, n28b;
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// uint16_t igrid4;
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// uint8_t ir;
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//
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// // Extract packed fields
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// n28a = (a77[0] << 21);
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// n28a |= (a77[1] << 13);
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// n28a |= (a77[2] << 5);
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// n28a |= (a77[3] >> 3);
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// n28b = ((a77[3] & 0x07) << 26);
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// n28b |= (a77[4] << 18);
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// n28b |= (a77[5] << 10);
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// n28b |= (a77[6] << 2);
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// n28b |= (a77[7] >> 6);
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// ir = ((a77[7] & 0x20) >> 5);
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// igrid4 = ((a77[7] & 0x1F) << 10);
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// igrid4 |= (a77[8] << 2);
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// igrid4 |= (a77[9] >> 6);
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//
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// // Unpack both callsigns
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// if (unpack_callsign(n28a >> 1, n28a & 0x01, i3, call_to) < 0) {
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// return -1;
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// }
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// if (unpack_callsign(n28b >> 1, n28b & 0x01, i3, call_de) < 0) {
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// return -2;
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// }
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// // Fix "CQ_" to "CQ " -> already done in unpack_callsign()
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//
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// // TODO: add to recent calls
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// // if (call_to[0] != '<' && strlen(call_to) >= 4) {
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// // save_hash_call(call_to)
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// // }
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// // if (call_de[0] != '<' && strlen(call_de) >= 4) {
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// // save_hash_call(call_de)
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// // }
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//
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// char *dst = extra;
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//
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// if (igrid4 <= MAXGRID4) {
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// // Extract 4 symbol grid locator
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// if (ir > 0) {
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// // In case of ir=1 add an "R" before grid
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// //dst = stpcpy(dst, "R ");//除错
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// dst = strcpy(dst, "R ");
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// dst += 3;
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// }
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//
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// uint16_t n = igrid4;
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// dst[4] = '\0';
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// dst[3] = '0' + (n % 10);
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// n /= 10;
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// dst[2] = '0' + (n % 10);
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// n /= 10;
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// dst[1] = 'A' + (n % 18);
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// n /= 18;
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// dst[0] = 'A' + (n % 18);
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// // if (ir > 0 && strncmp(call_to, "CQ", 2) == 0) return -1;
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// } else {
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// // Extract report
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// int irpt = igrid4 - MAXGRID4;
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//
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// // Check special cases first (irpt > 0 always)
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// switch (irpt) {
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// case 1:
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// extra[0] = '\0';
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// break;
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// case 2:
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// strcpy(dst, "RRR");
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// break;
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// case 3:
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// strcpy(dst, "RR73");
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// break;
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// case 4:
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// strcpy(dst, "73");
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// break;
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// default:
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// // Extract signal report as a two digit number with a + or - sign
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// if (ir > 0) {
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// *dst++ = 'R'; // Add "R" before report
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// }
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// int_to_dd(dst, irpt - 35, 2, true);
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// break;
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// }
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// // if (irpt >= 2 && strncmp(call_to, "CQ", 2) == 0) return -1;
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// }
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//
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// return 0; // Success
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//}
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int unpack_type1_(const uint8_t *a77, message_t *message) {
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uint32_t n28a, n28b;
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uint16_t igrid4;
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uint8_t ir;
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// Extract packed fields
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n28a = (a77[0] << 21);
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n28a |= (a77[1] << 13);
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n28a |= (a77[2] << 5);
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n28a |= (a77[3] >> 3);
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n28b = ((a77[3] & 0x07) << 26);
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n28b |= (a77[4] << 18);
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n28b |= (a77[5] << 10);
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n28b |= (a77[6] << 2);
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n28b |= (a77[7] >> 6);
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ir = ((a77[7] & 0x20) >> 5);
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igrid4 = ((a77[7] & 0x1F) << 10);
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igrid4 |= (a77[8] << 2);
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igrid4 |= (a77[9] >> 6);
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// Unpack both callsigns
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if (unpack_callsign(n28a >> 1, n28a & 0x01, message->i3, message->call_to,&message->call_to_hash) < 0) {
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return -1;
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}
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if (unpack_callsign(n28b >> 1, n28b & 0x01, message->i3, message->call_de,&message->call_de_hash) < 0) {
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return -2;
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}
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// Fix "CQ_" to "CQ " -> already done in unpack_callsign()
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// TODO: add to recent calls
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// if (call_to[0] != '<' && strlen(call_to) >= 4) {
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// save_hash_call(call_to)
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// }
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// if (call_de[0] != '<' && strlen(call_de) >= 4) {
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// save_hash_call(call_de)
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// }
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char *dst = message->extra;
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message->report=-100;//-100说明没有信号报告
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message->maidenGrid[0]='\0';
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if (igrid4 <= MAXGRID4) {
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// // 解码4字符的梅登海德网格，！！！网格数据优先于信号报告
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if (ir > 0) {
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// In case of ir=1 add an "R" before grid
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dst = strcpy(dst, "R ");
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dst += 3;
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}
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uint16_t n = igrid4;
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dst[4] = '\0';
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dst[3] = '0' + (n % 10);
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n /= 10;
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dst[2] = '0' + (n % 10);
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n /= 10;
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dst[1] = 'A' + (n % 18);
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n /= 18;
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dst[0] = 'A' + (n % 18);
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strcpy(message->maidenGrid, dst);//把网格内容复制出来
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// if (ir > 0 && strncmp(call_to, "CQ", 2) == 0) return -1;
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} else {
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// 解码信号报告，数值-35是报告。
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// 网格数据优先于信号报告
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message->report = igrid4 - MAXGRID4 - 35;
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// Check special cases first (irpt > 0 always)
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switch (message->report) {
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case 1 - 35:
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message->extra[0] = '\0';
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break;
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case 2 - 35:
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strcpy(dst, "RRR");
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break;
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case 3 - 35:
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strcpy(dst, "RR73");
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break;
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case 4 - 35:
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strcpy(dst, "73");
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break;
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default:
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// Extract signal report as a two digit number with a + or - sign
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if (ir > 0) {
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*dst++ = 'R'; // Add "R" before report
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}
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int_to_dd(dst, message->report, 2, true);
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break;
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}
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// if (irpt >= 2 && strncmp(call_to, "CQ", 2) == 0) return -1;
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}
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return 0; // Success
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}
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int unpack_text(const uint8_t *a71, char *text) {
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// TODO: test
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uint8_t b71[9];
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// Shift 71 bits right by 1 bit, so that it's right-aligned in the byte array
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uint8_t carry = 0;
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for (int i = 0; i < 9; ++i) {
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b71[i] = carry | (a71[i] >> 1);
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carry = (a71[i] & 1) ? 0x80 : 0;
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}
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char c14[14];
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c14[13] = 0;
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for (int idx = 12; idx >= 0; --idx) {
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// Divide the long integer in b71 by 42
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uint16_t rem = 0;
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for (int i = 0; i < 9; ++i) {
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rem = (rem << 8) | b71[i];
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b71[i] = rem / 42;
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rem = rem % 42;
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}
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c14[idx] = charn(rem, 0);
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}
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strcpy(text, trim(c14));
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return 0; // Success
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}
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int unpack_telemetry(const uint8_t *a71, char *telemetry) {
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uint8_t b71[9];
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// Shift bits in a71 right by 1 bit
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uint8_t carry = 0;
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for (int i = 0; i < 9; ++i) {
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b71[i] = (carry << 7) | (a71[i] >> 1);
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carry = (a71[i] & 0x01);
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}
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// Convert b71 to hexadecimal string
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for (int i = 0; i < 9; ++i) {
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uint8_t nibble1 = (b71[i] >> 4);
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uint8_t nibble2 = (b71[i] & 0x0F);
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char c1 = (nibble1 > 9) ? (nibble1 - 10 + 'A') : nibble1 + '0';
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char c2 = (nibble2 > 9) ? (nibble2 - 10 + 'A') : nibble2 + '0';
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telemetry[i * 2] = c1;
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telemetry[i * 2 + 1] = c2;
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}
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telemetry[18] = '\0';
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return 0;
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}
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//none standard for wsjt-x 2.0
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//by KD8CEC
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int unpack_nonstandard(const uint8_t *a77, message_t *message) {
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uint32_t n12, iflip, nrpt, icq;
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uint64_t n58;
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n12 = (a77[0] << 4); //11 ~4 : 8
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n12 |= (a77[1] >> 4); //3~0 : 12
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uint32_t h12=a77[0];
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n58 = ((uint64_t) (a77[1] & 0x0F) << 54); //57 ~ 54 : 4
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n58 |= ((uint64_t) a77[2] << 46); //53 ~ 46 : 12
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n58 |= ((uint64_t) a77[3] << 38); //45 ~ 38 : 12
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n58 |= ((uint64_t) a77[4] << 30); //37 ~ 30 : 12
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n58 |= ((uint64_t) a77[5] << 22); //29 ~ 22 : 12
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n58 |= ((uint64_t) a77[6] << 14); //21 ~ 14 : 12
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n58 |= ((uint64_t) a77[7] << 6); //13 ~ 6 : 12
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n58 |= ((uint64_t) a77[8] >> 2); //5 ~ 0 : 765432 10
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iflip = (a77[8] >> 1) & 0x01; //76543210
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nrpt = ((a77[8] & 0x01) << 1);
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nrpt |= (a77[9] >> 7); //76543210
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icq = ((a77[9] >> 6) & 0x01);
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if (iflip==1){//h1==1
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message->call_de_hash.hash12=n12;
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} else{
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message->call_to_hash.hash12=n12;
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}
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char c11[12];
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c11[11] = '\0';
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for (int i = 10; /* no condition */; --i) {
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c11[i] = charn(n58 % 38, 5);
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if (i == 0)
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break;
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n58 /= 38;
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}
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char call_3[15];
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// should replace with hash12(n12, call_3);
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strcpy(call_3, "<...>");
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// call_3[0] = '<';
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// int_to_dd(call_3 + 1, n12, 4, false);
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// call_3[5] = '>';
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// call_3[6] = '\0';
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char *call_1 = (iflip) ? c11 : call_3;
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char *call_2 = (iflip) ? call_3 : c11;
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//save_hash_call(c11_trimmed);
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if (icq == 0) {
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strcpy(message->call_to, trim(call_1));
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if (nrpt == 1)
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strcpy(message->extra, "RRR");
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else if (nrpt == 2)
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strcpy(message->extra, "RR73");
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else if (nrpt == 3)
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strcpy(message->extra, "73");
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else {
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message->extra[0] = '\0';
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}
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} else {
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strcpy(message->call_to, "CQ");
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message->extra[0] = '\0';
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}
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strcpy(message->call_de, trim(call_2));
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return 0;
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}
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//int unpack77_fields(const uint8_t *a77, char *call_to, char *call_de, char *extra) {
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// call_to[0] = call_de[0] = extra[0] = '\0';
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//
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// // Extract i3 (bits 74..76)
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// uint8_t i3 = (a77[9] >> 3) & 0x07;
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//
|
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// if (i3 == 0) {
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// // Extract n3 (bits 71..73)
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// uint8_t n3 = ((a77[8] << 2) & 0x04) | ((a77[9] >> 6) & 0x03);
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//
|
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// if (n3 == 0) {
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// // 0.0 Free text
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// return unpack_text(a77, extra);
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// }
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// // else if (i3 == 0 && n3 == 1) {
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// // // 0.1 K1ABC RR73; W9XYZ <KH1/KH7Z> -11 28 28 10 5 71 DXpedition Mode
|
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// // }
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// // else if (i3 == 0 && n3 == 2) {
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// // // 0.2 PA3XYZ/P R 590003 IO91NP 28 1 1 3 12 25 70 EU VHF contest
|
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// // }
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// // else if (i3 == 0 && (n3 == 3 || n3 == 4)) {
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// // // 0.3 WA9XYZ KA1ABC R 16A EMA 28 28 1 4 3 7 71 ARRL Field Day
|
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// // // 0.4 WA9XYZ KA1ABC R 32A EMA 28 28 1 4 3 7 71 ARRL Field Day
|
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// // }
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// else if (n3 == 5) {
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// // 0.5 0123456789abcdef01 71 71 Telemetry (18 hex)
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// return unpack_telemetry(a77, extra);
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// }
|
||
// } else if (i3 == 1 || i3 == 2) {
|
||
// // Type 1 (standard message) or Type 2 ("/P" form for EU VHF contest)
|
||
// return unpack_type1(a77, i3, call_to, call_de, extra);
|
||
// }
|
||
// // else if (i3 == 3) {
|
||
// // // Type 3: ARRL RTTY Contest
|
||
// // }
|
||
// else if (i3 == 4) {
|
||
// // // Type 4: Nonstandard calls, e.g. <WA9XYZ> PJ4/KA1ABC RR73
|
||
// // // One hashed call or "CQ"; one compound or nonstandard call with up
|
||
// // // to 11 characters; and (if not "CQ") an optional RRR, RR73, or 73.
|
||
// return unpack_nonstandard(a77, call_to, call_de, extra);
|
||
// }
|
||
// // else if (i3 == 5) {
|
||
// // // Type 5: TU; W9XYZ K1ABC R-09 FN 1 28 28 1 7 9 74 WWROF contest
|
||
// // }
|
||
//
|
||
// // unknown type, should never get here
|
||
// return -1;
|
||
//}
|
||
//
|
||
|
||
|
||
|
||
|
||
//int unpack77(const uint8_t* a77, char* message)
|
||
//{
|
||
// char call_to[14];
|
||
// char call_de[14];
|
||
// char extra[19];
|
||
//
|
||
// //// TO-DO:在此处修改。把Message的格式修改成i3,n3,from,to,extra，方便消息显示。
|
||
// int rc = unpack77_fields(a77, call_to, call_de, extra);
|
||
// if (rc < 0)
|
||
// return rc;
|
||
//
|
||
// // int msg_sz = strlen(call_to) + strlen(call_de) + strlen(extra) + 2;
|
||
// char* dst = message;
|
||
//
|
||
// dst[0] = '\0';
|
||
//
|
||
// if (call_to[0] != '\0')
|
||
// {
|
||
// // dst = stpcpy(dst, call_to); //除错
|
||
// dst = strcpy(dst, call_to);
|
||
// dst +=strlen(call_to);
|
||
// *dst++ = ' ';
|
||
// }
|
||
//
|
||
// if (call_de[0] != '\0')
|
||
// {
|
||
// // dst = stpcpy(dst, call_de);//除错
|
||
// dst = strcpy(dst, call_de);
|
||
// dst +=strlen(call_de);
|
||
// *dst++ = ' ';
|
||
// }
|
||
//
|
||
// // dst = stpcpy(dst, extra);//除错
|
||
// dst = strcpy(dst, extra);
|
||
// dst += strlen(extra);
|
||
// *dst = '\0';
|
||
//
|
||
// return 0;
|
||
//}
|
||
|
||
|
||
|
||
int unpack77_fields_(const uint8_t *a77, message_t *message) {
|
||
|
||
//获取指令类型i3.n3
|
||
message->i3 = (a77[9] >> 3) & 0x07;
|
||
message->n3 = 0;
|
||
|
||
if (message->i3 == 0) {
|
||
//n3指令
|
||
message->n3 = ((a77[8] << 2) & 0x04) | ((a77[9] >> 6) & 0x03);
|
||
|
||
if (message->n3 == 0) {
|
||
// 0.0 Free text
|
||
return unpack_text(a77, message->extra);
|
||
}
|
||
// else if (i3 == 0 && n3 == 1) {
|
||
// // 0.1 K1ABC RR73; W9XYZ <KH1/KH7Z> -11 28 28 10 5 71 DXpedition Mode
|
||
// }
|
||
// else if (i3 == 0 && n3 == 2) {
|
||
// // 0.2 PA3XYZ/P R 590003 IO91NP 28 1 1 3 12 25 70 EU VHF contest
|
||
// }
|
||
// else if (i3 == 0 && (n3 == 3 || n3 == 4)) {
|
||
// // 0.3 WA9XYZ KA1ABC R 16A EMA 28 28 1 4 3 7 71 ARRL Field Day
|
||
// // 0.4 WA9XYZ KA1ABC R 32A EMA 28 28 1 4 3 7 71 ARRL Field Day
|
||
// }
|
||
else if (message->n3 == 5) {
|
||
// 0.5 0123456789abcdef01 71 71 Telemetry (18 hex)
|
||
return unpack_telemetry(a77, message->extra);
|
||
}
|
||
} else if (message->i3 == 1 || message->i3 == 2) {
|
||
// Type 1 (standard message) or Type 2 ("/P" form for EU VHF contest)
|
||
return unpack_type1_(a77, message);
|
||
}
|
||
// else if (i3 == 3) {
|
||
// // Type 3: ARRL RTTY Contest
|
||
// }
|
||
else if (message->i3 == 4) {
|
||
// // Type 4: Nonstandard calls, e.g. <WA9XYZ> PJ4/KA1ABC RR73
|
||
// // One hashed call or "CQ"; one compound or nonstandard call with up
|
||
// // to 11 characters; and (if not "CQ") an optional RRR, RR73, or 73.
|
||
//return unpack_nonstandard(a77, message->call_to, message->call_de, message->extra);
|
||
return unpack_nonstandard(a77, message);
|
||
}
|
||
// else if (i3 == 5) {
|
||
// // Type 5: TU; W9XYZ K1ABC R-09 FN 1 28 28 1 7 9 74 WWROF contest
|
||
// }
|
||
|
||
// unknown type, should never get here
|
||
return -1;
|
||
|
||
|
||
}
|
||
|
||
|
||
//把77位消息解码到message_t
|
||
int unpackToMessage_t(const uint8_t *a77, message_t *message) {
|
||
//char call_to[14];
|
||
//char call_de[14];
|
||
//char extra[19];
|
||
|
||
//// TO-DO:在此处修改。把Message的格式修改成i3,n3,from,to,extra，方便消息显示。
|
||
int rc = unpack77_fields_(a77, message);
|
||
|
||
if (rc < 0)
|
||
return rc;
|
||
|
||
|
||
// int msg_sz = strlen(call_to) + strlen(call_de) + strlen(extra) + 2;
|
||
char *dst = message->text;
|
||
|
||
message->text[0] = '\0';
|
||
|
||
if (message->call_to[0] != '\0') {
|
||
// dst = stpcpy(dst, call_to); //除错
|
||
dst = strcpy(dst, message->call_to);
|
||
dst += strlen(message->call_to);
|
||
*dst++ = ' ';
|
||
}
|
||
|
||
if (message->call_de[0] != '\0') {
|
||
// dst = stpcpy(dst, call_de);//除错
|
||
dst = strcpy(dst, message->call_de);
|
||
dst += strlen(message->call_de);
|
||
*dst++ = ' ';
|
||
}
|
||
|
||
// dst = stpcpy(dst, extra);//除错
|
||
dst = strcpy(dst, message->extra);
|
||
dst += strlen(message->extra);
|
||
*dst = '\0';
|
||
|
||
return 0;
|
||
} |