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a553f267 | 1 | //----------------------------------------------------------------------------- |
2 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com> | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // Data and Graph commands | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
6923d3f1 | 11 | #include <stdio.h> // also included in util.h |
12 | #include <string.h> // also included in util.h | |
43534cba | 13 | #include <inttypes.h> |
6923d3f1 | 14 | #include <limits.h> // for CmdNorm INT_MIN && INT_MAX |
15 | #include "data.h" // also included in util.h | |
16 | #include "cmddata.h" | |
d51b2eda | 17 | #include "util.h" |
7fe9b0b7 | 18 | #include "cmdmain.h" |
6923d3f1 | 19 | #include "proxmark3.h" |
20 | #include "ui.h" // for show graph controls | |
21 | #include "graph.h" // for graph data | |
22 | #include "cmdparser.h"// already included in cmdmain.h | |
23 | #include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h | |
24 | #include "lfdemod.h" // for demod code | |
6923d3f1 | 25 | #include "loclass/cipherutils.h" // for decimating samples in getsamples |
35aa230e | 26 | #include "cmdlfem4x.h"// for em410x demod |
31abe49f | 27 | |
4118b74d | 28 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; |
b362de62 | 29 | uint8_t g_debugMode=0; |
30 | size_t DemodBufferLen=0; | |
cb86f8d6 | 31 | //size_t g_demodStartIdx=0; |
32 | //uint8_t g_demodClock=0; | |
127f1490 | 33 | |
7fe9b0b7 | 34 | static int CmdHelp(const char *Cmd); |
35 | ||
4118b74d | 36 | //set the demod buffer with given array of binary (one bit per byte) |
37 | //by marshmellow | |
ec75f5c1 | 38 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) |
4118b74d | 39 | { |
13d77ef9 | 40 | if (buff == NULL) |
41 | return; | |
42 | ||
43 | if ( size >= MAX_DEMOD_BUF_LEN) | |
44 | size = MAX_DEMOD_BUF_LEN; | |
45 | ||
ec75f5c1 | 46 | size_t i = 0; |
8e2e6c8e | 47 | for (; i < size; i++){ |
ec75f5c1 | 48 | DemodBuffer[i]=buff[startIdx++]; |
ba1a299c | 49 | } |
50 | DemodBufferLen=size; | |
51 | return; | |
4118b74d | 52 | } |
53 | ||
b9957414 | 54 | bool getDemodBuf(uint8_t *buff, size_t *size) { |
55 | if (buff == NULL) return false; | |
56 | if (size == NULL) return false; | |
57 | if (*size == 0) return false; | |
58 | ||
59 | *size = (*size > DemodBufferLen) ? DemodBufferLen : *size; | |
60 | ||
61 | memcpy(buff, DemodBuffer, *size); | |
62 | return true; | |
63 | } | |
64 | ||
b97311b1 | 65 | // option '1' to save DemodBuffer any other to restore |
66 | void save_restoreDB(uint8_t saveOpt) | |
67 | { | |
68 | static uint8_t SavedDB[MAX_GRAPH_TRACE_LEN]; | |
69 | static size_t SavedDBlen; | |
70 | static bool DB_Saved = false; | |
71 | ||
72 | if (saveOpt==1) { //save | |
73 | memcpy(SavedDB, DemodBuffer, sizeof(DemodBuffer)); | |
74 | SavedDBlen = DemodBufferLen; | |
75 | DB_Saved=true; | |
b9957414 | 76 | } else if (DB_Saved) { //restore |
b97311b1 | 77 | memcpy(DemodBuffer, SavedDB, sizeof(DemodBuffer)); |
78 | DemodBufferLen = SavedDBlen; | |
79 | } | |
80 | return; | |
81 | } | |
82 | ||
ec75f5c1 | 83 | int CmdSetDebugMode(const char *Cmd) |
84 | { | |
e0165dcf | 85 | int demod=0; |
86 | sscanf(Cmd, "%i", &demod); | |
87 | g_debugMode=(uint8_t)demod; | |
88 | return 1; | |
ec75f5c1 | 89 | } |
90 | ||
979bba37 | 91 | int usage_data_printdemodbuf(){ |
ace26dbd | 92 | PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>"); |
979bba37 | 93 | PrintAndLog("Options: "); |
94 | PrintAndLog(" h This help"); | |
95 | PrintAndLog(" x output in hex (omit for binary output)"); | |
96 | PrintAndLog(" o <offset> enter offset in # of bits"); | |
ace26dbd | 97 | PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively"); |
979bba37 | 98 | return 0; |
99 | } | |
100 | ||
4118b74d | 101 | //by marshmellow |
abd6112f | 102 | void printDemodBuff(void) |
4118b74d | 103 | { |
ba1a299c | 104 | int bitLen = DemodBufferLen; |
2767fc02 | 105 | if (bitLen<1) { |
ba1a299c | 106 | PrintAndLog("no bits found in demod buffer"); |
107 | return; | |
108 | } | |
109 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
e0165dcf | 110 | |
2767fc02 | 111 | char *bin = sprint_bin_break(DemodBuffer,bitLen,16); |
112 | PrintAndLog("%s",bin); | |
113 | ||
ba1a299c | 114 | return; |
4118b74d | 115 | } |
116 | ||
8d960002 | 117 | int CmdPrintDemodBuff(const char *Cmd) |
118 | { | |
979bba37 | 119 | char hex[512]={0x00}; |
120 | bool hexMode = false; | |
121 | bool errors = false; | |
ace26dbd | 122 | uint32_t offset = 0; //could be size_t but no param_get16... |
123 | uint32_t length = 512; | |
979bba37 | 124 | char cmdp = 0; |
125 | while(param_getchar(Cmd, cmdp) != 0x00) | |
126 | { | |
127 | switch(param_getchar(Cmd, cmdp)) | |
128 | { | |
129 | case 'h': | |
130 | case 'H': | |
131 | return usage_data_printdemodbuf(); | |
132 | case 'x': | |
133 | case 'X': | |
134 | hexMode = true; | |
135 | cmdp++; | |
136 | break; | |
137 | case 'o': | |
138 | case 'O': | |
ace26dbd | 139 | offset = param_get32ex(Cmd, cmdp+1, 0, 10); |
979bba37 | 140 | if (!offset) errors = true; |
141 | cmdp += 2; | |
142 | break; | |
ace26dbd | 143 | case 'l': |
144 | case 'L': | |
145 | length = param_get32ex(Cmd, cmdp+1, 512, 10); | |
146 | if (!length) errors = true; | |
147 | cmdp += 2; | |
148 | break; | |
979bba37 | 149 | default: |
150 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); | |
151 | errors = true; | |
152 | break; | |
153 | } | |
154 | if(errors) break; | |
e0165dcf | 155 | } |
979bba37 | 156 | //Validations |
157 | if(errors) return usage_data_printdemodbuf(); | |
ace26dbd | 158 | length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length; |
159 | int numBits = (length) & 0x00FFC; //make sure we don't exceed our string | |
979bba37 | 160 | |
161 | if (hexMode){ | |
185e038c | 162 | char *buf = (char *) (DemodBuffer + offset); |
ace26dbd | 163 | numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits; |
979bba37 | 164 | numBits = binarraytohex(hex, buf, numBits); |
e0165dcf | 165 | if (numBits==0) return 0; |
979bba37 | 166 | PrintAndLog("DemodBuffer: %s",hex); |
e0165dcf | 167 | } else { |
709665b5 | 168 | PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16)); |
e0165dcf | 169 | } |
170 | return 1; | |
8d960002 | 171 | } |
7fe9b0b7 | 172 | |
2767fc02 | 173 | //by marshmellow |
78f5b1a7 | 174 | //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer |
175 | int CmdGetBitStream(const char *Cmd) | |
176 | { | |
e0165dcf | 177 | int i; |
178 | CmdHpf(Cmd); | |
179 | for (i = 0; i < GraphTraceLen; i++) { | |
180 | if (GraphBuffer[i] >= 1) { | |
181 | GraphBuffer[i] = 1; | |
182 | } else { | |
183 | GraphBuffer[i] = 0; | |
184 | } | |
185 | } | |
186 | RepaintGraphWindow(); | |
187 | return 0; | |
78f5b1a7 | 188 | } |
189 | ||
fef74fdc | 190 | //by marshmellow |
191 | //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a' | |
192 | // (amp may not be needed anymore) | |
193 | //verbose will print results and demoding messages | |
194 | //emSearch will auto search for EM410x format in bitstream | |
195 | //askType switches decode: ask/raw = 0, ask/manchester = 1 | |
d1869c33 | 196 | int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) { |
e0165dcf | 197 | int invert=0; |
198 | int clk=0; | |
199 | int maxErr=100; | |
fef74fdc | 200 | int maxLen=0; |
01d0f8ae | 201 | uint8_t askamp = 0; |
fef74fdc | 202 | char amp = param_getchar(Cmd, 0); |
e0165dcf | 203 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
fef74fdc | 204 | sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &); |
ace26dbd | 205 | if (!maxLen) maxLen = BIGBUF_SIZE; |
e0165dcf | 206 | if (invert != 0 && invert != 1) { |
207 | PrintAndLog("Invalid argument: %s", Cmd); | |
208 | return 0; | |
209 | } | |
210 | if (clk==1){ | |
211 | invert=1; | |
212 | clk=0; | |
213 | } | |
214 | size_t BitLen = getFromGraphBuf(BitStream); | |
2767fc02 | 215 | if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); |
d1869c33 | 216 | if (BitLen < 255) return 0; |
217 | if (maxLen < BitLen && maxLen != 0) BitLen = maxLen; | |
218 | int foundclk = 0; | |
01d0f8ae | 219 | //amp before ST check |
220 | if (amp == 'a' || amp == 'A') { | |
221 | askAmp(BitStream, BitLen); | |
222 | } | |
d1869c33 | 223 | bool st = false; |
ab812dfa | 224 | size_t ststart = 0, stend = 0; |
225 | if (*stCheck) st = DetectST_ext(BitStream, &BitLen, &foundclk, &ststart, &stend); | |
b9957414 | 226 | *stCheck = st; |
d1869c33 | 227 | if (st) { |
d1869c33 | 228 | clk = (clk == 0) ? foundclk : clk; |
ab812dfa | 229 | CursorCPos = ststart; |
230 | CursorDPos = stend; | |
f75b313b | 231 | if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers"); |
b97311b1 | 232 | //Graph ST trim (for testing) |
233 | //for (int i = 0; i < BitLen; i++) { | |
234 | // GraphBuffer[i] = BitStream[i]-128; | |
235 | //} | |
236 | //RepaintGraphWindow(); | |
d1869c33 | 237 | } |
01d0f8ae | 238 | int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType); |
fef74fdc | 239 | if (errCnt<0 || BitLen<16){ //if fatal error (or -1) |
2767fc02 | 240 | if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); |
e0165dcf | 241 | return 0; |
242 | } | |
d1869c33 | 243 | if (errCnt > maxErr){ |
2767fc02 | 244 | if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk); |
245 | return 0; | |
246 | } | |
247 | if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 248 | |
249 | //output | |
e0165dcf | 250 | setDemodBuf(BitStream,BitLen,0); |
fef74fdc | 251 | if (verbose || g_debugMode){ |
252 | if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
8e2e6c8e | 253 | if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk); |
254 | else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk); | |
fef74fdc | 255 | // Now output the bitstream to the scrollback by line of 16 bits |
256 | printDemodBuff(); | |
257 | ||
258 | } | |
259 | uint64_t lo = 0; | |
260 | uint32_t hi = 0; | |
e0165dcf | 261 | if (emSearch){ |
fef74fdc | 262 | AskEm410xDecode(true, &hi, &lo); |
e0165dcf | 263 | } |
264 | return 1; | |
eb191de6 | 265 | } |
d1869c33 | 266 | int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) { |
267 | bool st = false; | |
268 | return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st); | |
269 | } | |
eb191de6 | 270 | |
4ac906d1 | 271 | //by marshmellow |
fef74fdc | 272 | //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a' |
4ac906d1 | 273 | //attempts to demodulate ask while decoding manchester |
274 | //prints binary found and saves in graphbuffer for further commands | |
275 | int Cmdaskmandemod(const char *Cmd) | |
276 | { | |
e0165dcf | 277 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 278 | if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') { |
d1869c33 | 279 | PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]"); |
280 | PrintAndLog(" ['s'] optional, check for Sequence Terminator"); | |
fef74fdc | 281 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); |
282 | PrintAndLog(" <invert>, 1 to invert output"); | |
283 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
284 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); | |
285 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
e0165dcf | 286 | PrintAndLog(""); |
287 | PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer"); | |
288 | PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
289 | PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
290 | PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
291 | PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
292 | return 0; | |
293 | } | |
7cb8516c | 294 | bool st = true; |
d1869c33 | 295 | if (Cmd[0]=='s') |
7cb8516c | 296 | return ASKDemod_ext(Cmd++, true, true, 1, &st); |
d1869c33 | 297 | else if (Cmd[1] == 's') |
7cb8516c | 298 | return ASKDemod_ext(Cmd+=2, true, true, 1, &st); |
d1869c33 | 299 | else |
7cb8516c | 300 | return ASKDemod(Cmd, true, true, 1); |
4ac906d1 | 301 | } |
302 | ||
eb191de6 | 303 | //by marshmellow |
d5a72d2f | 304 | //manchester decode |
eb191de6 | 305 | //stricktly take 10 and 01 and convert to 0 and 1 |
306 | int Cmdmandecoderaw(const char *Cmd) | |
307 | { | |
e0165dcf | 308 | int i =0; |
309 | int errCnt=0; | |
310 | size_t size=0; | |
fef74fdc | 311 | int invert=0; |
6ac4cb27 | 312 | int maxErr = 20; |
e0165dcf | 313 | char cmdp = param_getchar(Cmd, 0); |
1f918317 | 314 | if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') { |
fef74fdc | 315 | PrintAndLog("Usage: data manrawdecode [invert] [maxErr]"); |
e0165dcf | 316 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); |
317 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
fef74fdc | 318 | PrintAndLog(" [invert] invert output"); |
1f918317 | 319 | PrintAndLog(" [maxErr] set number of errors allowed (default = 20)"); |
e0165dcf | 320 | PrintAndLog(""); |
321 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
322 | return 0; | |
323 | } | |
324 | if (DemodBufferLen==0) return 0; | |
325 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
326 | int high=0,low=0; | |
327 | for (;i<DemodBufferLen;++i){ | |
328 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
329 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
330 | BitStream[i]=DemodBuffer[i]; | |
331 | } | |
1f918317 | 332 | if (high>7 || low <0 ){ |
2767fc02 | 333 | PrintAndLog("Error: please raw demod the wave first then manchester raw decode"); |
e0165dcf | 334 | return 0; |
335 | } | |
1f918317 | 336 | |
fef74fdc | 337 | sscanf(Cmd, "%i %i", &invert, &maxErr); |
e0165dcf | 338 | size=i; |
127f1490 | 339 | uint8_t alignPos = 0; |
340 | errCnt=manrawdecode(BitStream, &size, invert, &alignPos); | |
e0165dcf | 341 | if (errCnt>=maxErr){ |
342 | PrintAndLog("Too many errors: %d",errCnt); | |
343 | return 0; | |
344 | } | |
345 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); | |
2767fc02 | 346 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
e0165dcf | 347 | if (errCnt==0){ |
348 | uint64_t id = 0; | |
349 | uint32_t hi = 0; | |
350 | size_t idx=0; | |
351 | if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ | |
352 | //need to adjust to set bitstream back to manchester encoded data | |
353 | //setDemodBuf(BitStream, size, idx); | |
354 | ||
355 | printEM410x(hi, id); | |
356 | } | |
357 | } | |
358 | return 1; | |
d5a72d2f | 359 | } |
360 | ||
361 | //by marshmellow | |
362 | //biphase decode | |
363 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
1e090a61 | 364 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit |
365 | // and "invert" default = 0 if 1 it will invert output | |
2767fc02 | 366 | // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects] |
d5a72d2f | 367 | int CmdBiphaseDecodeRaw(const char *Cmd) |
368 | { | |
ba1a299c | 369 | size_t size=0; |
b41534d1 | 370 | int offset=0, invert=0, maxErr=20, errCnt=0; |
b4fb11ba | 371 | char cmdp = param_getchar(Cmd, 0); |
372 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
b41534d1 | 373 | PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); |
374 | PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); | |
b4fb11ba | 375 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); |
e0165dcf | 376 | PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); |
b4fb11ba | 377 | PrintAndLog(""); |
378 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
379 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
b41534d1 | 380 | PrintAndLog(" [maxErr int], set max errors tolerated - default=20"); |
b4fb11ba | 381 | PrintAndLog(""); |
382 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
383 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
384 | return 0; | |
385 | } | |
b41534d1 | 386 | sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); |
b9957414 | 387 | if (DemodBufferLen==0) { |
b41534d1 | 388 | PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); |
b4fb11ba | 389 | return 0; |
390 | } | |
b41534d1 | 391 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
b9957414 | 392 | size = sizeof(BitStream); |
393 | if ( !getDemodBuf(BitStream, &size) ) return 0; | |
1e090a61 | 394 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); |
b41534d1 | 395 | if (errCnt<0){ |
396 | PrintAndLog("Error during decode:%d", errCnt); | |
397 | return 0; | |
398 | } | |
399 | if (errCnt>maxErr){ | |
b4fb11ba | 400 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); |
401 | return 0; | |
402 | } | |
b41534d1 | 403 | |
404 | if (errCnt>0){ | |
2767fc02 | 405 | PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt); |
b41534d1 | 406 | } |
407 | PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); | |
2767fc02 | 408 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
b41534d1 | 409 | |
410 | if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod | |
b4fb11ba | 411 | return 1; |
eb191de6 | 412 | } |
413 | ||
b41534d1 | 414 | //by marshmellow |
415 | // - ASK Demod then Biphase decode GraphBuffer samples | |
416 | int ASKbiphaseDemod(const char *Cmd, bool verbose) | |
417 | { | |
418 | //ask raw demod GraphBuffer first | |
c7d67212 | 419 | int offset=0, clk=0, invert=0, maxErr=0; |
420 | sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); | |
b41534d1 | 421 | |
8e2e6c8e | 422 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; |
423 | size_t size = getFromGraphBuf(BitStream); | |
fd227f4e | 424 | //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer |
c7d67212 | 425 | int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); |
8e2e6c8e | 426 | if ( errCnt < 0 || errCnt > maxErr ) { |
427 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk); | |
428 | return 0; | |
429 | } | |
430 | ||
431 | //attempt to Biphase decode BitStream | |
432 | errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); | |
b41534d1 | 433 | if (errCnt < 0){ |
434 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
435 | return 0; | |
436 | } | |
437 | if (errCnt > maxErr) { | |
438 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); | |
439 | return 0; | |
440 | } | |
441 | //success set DemodBuffer and return | |
442 | setDemodBuf(BitStream, size, 0); | |
443 | if (g_debugMode || verbose){ | |
8e2e6c8e | 444 | PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt); |
b41534d1 | 445 | printDemodBuff(); |
446 | } | |
447 | return 1; | |
448 | } | |
449 | //by marshmellow - see ASKbiphaseDemod | |
450 | int Cmdaskbiphdemod(const char *Cmd) | |
451 | { | |
e0165dcf | 452 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 453 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { |
454 | PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>"); | |
e0165dcf | 455 | PrintAndLog(" [offset], offset to begin biphase, default=0"); |
456 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
457 | PrintAndLog(" <invert>, 1 to invert output"); | |
458 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
fef74fdc | 459 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); |
e0165dcf | 460 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); |
461 | PrintAndLog(" NOTE: <invert> can be entered as second or third argument"); | |
462 | PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument"); | |
463 | PrintAndLog(" NOTE: any other arg must have previous args set to work"); | |
464 | PrintAndLog(""); | |
465 | PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
466 | PrintAndLog(""); | |
fef74fdc | 467 | PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); |
468 | PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified"); | |
469 | PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); | |
470 | PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
471 | PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); | |
472 | PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
473 | PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
e0165dcf | 474 | return 0; |
475 | } | |
7cb8516c | 476 | return ASKbiphaseDemod(Cmd, true); |
b41534d1 | 477 | } |
478 | ||
fef74fdc | 479 | //by marshmellow - see ASKDemod |
4ac906d1 | 480 | int Cmdaskrawdemod(const char *Cmd) |
481 | { | |
e0165dcf | 482 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 483 | if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H') { |
fef74fdc | 484 | PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]"); |
e0165dcf | 485 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); |
486 | PrintAndLog(" <invert>, 1 to invert output"); | |
487 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
fef74fdc | 488 | PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)"); |
e0165dcf | 489 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); |
490 | PrintAndLog(""); | |
fef74fdc | 491 | PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); |
492 | PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); | |
493 | PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
494 | PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
495 | PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); | |
496 | PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
497 | PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
e0165dcf | 498 | return 0; |
499 | } | |
7cb8516c | 500 | return ASKDemod(Cmd, true, false, 0); |
4ac906d1 | 501 | } |
502 | ||
73d04bb4 | 503 | int AutoCorrelate(int window, bool SaveGrph, bool verbose) |
7fe9b0b7 | 504 | { |
e0165dcf | 505 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; |
506 | size_t Correlation = 0; | |
507 | int maxSum = 0; | |
508 | int lastMax = 0; | |
509 | if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
510 | for (int i = 0; i < GraphTraceLen - window; ++i) { | |
511 | int sum = 0; | |
512 | for (int j = 0; j < window; ++j) { | |
513 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
514 | } | |
515 | CorrelBuffer[i] = sum; | |
516 | if (sum >= maxSum-100 && sum <= maxSum+100){ | |
517 | //another max | |
518 | Correlation = i-lastMax; | |
519 | lastMax = i; | |
520 | if (sum > maxSum) maxSum = sum; | |
521 | } else if (sum > maxSum){ | |
522 | maxSum=sum; | |
523 | lastMax = i; | |
524 | } | |
525 | } | |
526 | if (Correlation==0){ | |
527 | //try again with wider margin | |
528 | for (int i = 0; i < GraphTraceLen - window; i++){ | |
529 | if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ | |
530 | //another max | |
531 | Correlation = i-lastMax; | |
532 | lastMax = i; | |
533 | //if (CorrelBuffer[i] > maxSum) maxSum = sum; | |
534 | } | |
535 | } | |
536 | } | |
537 | if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); | |
538 | ||
539 | if (SaveGrph){ | |
540 | GraphTraceLen = GraphTraceLen - window; | |
541 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
542 | RepaintGraphWindow(); | |
543 | } | |
544 | return Correlation; | |
73d04bb4 | 545 | } |
7fe9b0b7 | 546 | |
9f7bbd24 | 547 | int usage_data_autocorr(void) |
548 | { | |
e0165dcf | 549 | //print help |
550 | PrintAndLog("Usage: data autocorr [window] [g]"); | |
551 | PrintAndLog("Options: "); | |
552 | PrintAndLog(" h This help"); | |
553 | PrintAndLog(" [window] window length for correlation - default = 4000"); | |
554 | PrintAndLog(" g save back to GraphBuffer (overwrite)"); | |
555 | return 0; | |
9f7bbd24 | 556 | } |
557 | ||
73d04bb4 | 558 | int CmdAutoCorr(const char *Cmd) |
559 | { | |
e0165dcf | 560 | char cmdp = param_getchar(Cmd, 0); |
561 | if (cmdp == 'h' || cmdp == 'H') | |
562 | return usage_data_autocorr(); | |
563 | int window = 4000; //set default | |
564 | char grph=0; | |
7cb8516c | 565 | bool updateGrph = false; |
e0165dcf | 566 | sscanf(Cmd, "%i %c", &window, &grph); |
567 | ||
568 | if (window >= GraphTraceLen) { | |
569 | PrintAndLog("window must be smaller than trace (%d samples)", | |
570 | GraphTraceLen); | |
571 | return 0; | |
572 | } | |
7cb8516c | 573 | if (grph == 'g') updateGrph=true; |
574 | return AutoCorrelate(window, updateGrph, true); | |
7fe9b0b7 | 575 | } |
576 | ||
577 | int CmdBitsamples(const char *Cmd) | |
578 | { | |
e0165dcf | 579 | int cnt = 0; |
580 | uint8_t got[12288]; | |
952a8bb5 | 581 | |
e0165dcf | 582 | GetFromBigBuf(got,sizeof(got),0); |
583 | WaitForResponse(CMD_ACK,NULL); | |
7fe9b0b7 | 584 | |
e0165dcf | 585 | for (int j = 0; j < sizeof(got); j++) { |
586 | for (int k = 0; k < 8; k++) { | |
587 | if(got[j] & (1 << (7 - k))) { | |
588 | GraphBuffer[cnt++] = 1; | |
589 | } else { | |
590 | GraphBuffer[cnt++] = 0; | |
591 | } | |
592 | } | |
593 | } | |
594 | GraphTraceLen = cnt; | |
595 | RepaintGraphWindow(); | |
596 | return 0; | |
7fe9b0b7 | 597 | } |
598 | ||
7fe9b0b7 | 599 | int CmdBuffClear(const char *Cmd) |
600 | { | |
e0165dcf | 601 | UsbCommand c = {CMD_BUFF_CLEAR}; |
602 | SendCommand(&c); | |
603 | ClearGraph(true); | |
604 | return 0; | |
7fe9b0b7 | 605 | } |
606 | ||
607 | int CmdDec(const char *Cmd) | |
608 | { | |
e0165dcf | 609 | for (int i = 0; i < (GraphTraceLen / 2); ++i) |
610 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
611 | GraphTraceLen /= 2; | |
612 | PrintAndLog("decimated by 2"); | |
613 | RepaintGraphWindow(); | |
614 | return 0; | |
7fe9b0b7 | 615 | } |
698b649e MHS |
616 | /** |
617 | * Undecimate - I'd call it 'interpolate', but we'll save that | |
618 | * name until someone does an actual interpolation command, not just | |
619 | * blindly repeating samples | |
620 | * @param Cmd | |
621 | * @return | |
622 | */ | |
623 | int CmdUndec(const char *Cmd) | |
624 | { | |
c856ceae MHS |
625 | if(param_getchar(Cmd, 0) == 'h') |
626 | { | |
627 | PrintAndLog("Usage: data undec [factor]"); | |
628 | PrintAndLog("This function performs un-decimation, by repeating each sample N times"); | |
629 | PrintAndLog("Options: "); | |
630 | PrintAndLog(" h This help"); | |
631 | PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); | |
632 | PrintAndLog("Example: 'data undec 3'"); | |
633 | return 0; | |
634 | } | |
635 | ||
636 | uint8_t factor = param_get8ex(Cmd, 0,2, 10); | |
698b649e MHS |
637 | //We have memory, don't we? |
638 | int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; | |
72c5877a | 639 | uint32_t g_index = 0, s_index = 0; |
640 | while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN) | |
698b649e | 641 | { |
c856ceae | 642 | int count = 0; |
72c5877a | 643 | for(count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++) |
c856ceae | 644 | swap[s_index+count] = GraphBuffer[g_index]; |
72c5877a | 645 | |
646 | s_index += count; | |
647 | g_index++; | |
698b649e | 648 | } |
698b649e | 649 | |
72c5877a | 650 | memcpy(GraphBuffer, swap, s_index * sizeof(int)); |
c856ceae MHS |
651 | GraphTraceLen = s_index; |
652 | RepaintGraphWindow(); | |
698b649e MHS |
653 | return 0; |
654 | } | |
7fe9b0b7 | 655 | |
ec75f5c1 | 656 | //by marshmellow |
657 | //shift graph zero up or down based on input + or - | |
658 | int CmdGraphShiftZero(const char *Cmd) | |
659 | { | |
660 | ||
e0165dcf | 661 | int shift=0; |
662 | //set options from parameters entered with the command | |
663 | sscanf(Cmd, "%i", &shift); | |
664 | int shiftedVal=0; | |
665 | for(int i = 0; i<GraphTraceLen; i++){ | |
666 | shiftedVal=GraphBuffer[i]+shift; | |
667 | if (shiftedVal>127) | |
668 | shiftedVal=127; | |
669 | else if (shiftedVal<-127) | |
670 | shiftedVal=-127; | |
671 | GraphBuffer[i]= shiftedVal; | |
672 | } | |
673 | CmdNorm(""); | |
674 | return 0; | |
ec75f5c1 | 675 | } |
676 | ||
6de43508 | 677 | //by marshmellow |
678 | //use large jumps in read samples to identify edges of waves and then amplify that wave to max | |
2767fc02 | 679 | //similar to dirtheshold, threshold commands |
6de43508 | 680 | //takes a threshold length which is the measured length between two samples then determines an edge |
681 | int CmdAskEdgeDetect(const char *Cmd) | |
682 | { | |
e0165dcf | 683 | int thresLen = 25; |
de53156e | 684 | int Last = 0; |
e0165dcf | 685 | sscanf(Cmd, "%i", &thresLen); |
49bbc60a | 686 | |
e0165dcf | 687 | for(int i = 1; i<GraphTraceLen; i++){ |
688 | if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up | |
de53156e | 689 | Last = 127; |
e0165dcf | 690 | else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down |
de53156e | 691 | Last = -127; |
692 | GraphBuffer[i-1] = Last; | |
e0165dcf | 693 | } |
694 | RepaintGraphWindow(); | |
e0165dcf | 695 | return 0; |
6de43508 | 696 | } |
697 | ||
7fe9b0b7 | 698 | /* Print our clock rate */ |
ba1a299c | 699 | // uses data from graphbuffer |
f3bf15e4 | 700 | // adjusted to take char parameter for type of modulation to find the clock - by marshmellow. |
7fe9b0b7 | 701 | int CmdDetectClockRate(const char *Cmd) |
702 | { | |
f3bf15e4 | 703 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 704 | if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { |
705 | PrintAndLog("Usage: data detectclock [modulation] <clock>"); | |
f3bf15e4 | 706 | PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); |
fef74fdc | 707 | PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)"); |
f3bf15e4 | 708 | PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); |
709 | PrintAndLog(""); | |
710 | PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); | |
711 | PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); | |
712 | PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); | |
713 | PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); | |
714 | } | |
715 | int ans=0; | |
716 | if (cmdp == 'a'){ | |
fef74fdc | 717 | ans = GetAskClock(Cmd+1, true, false); |
f3bf15e4 | 718 | } else if (cmdp == 'f'){ |
719 | ans = GetFskClock("", true, false); | |
720 | } else if (cmdp == 'n'){ | |
721 | ans = GetNrzClock("", true, false); | |
722 | } else if (cmdp == 'p'){ | |
723 | ans = GetPskClock("", true, false); | |
724 | } else { | |
725 | PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); | |
726 | } | |
727 | return ans; | |
7fe9b0b7 | 728 | } |
66707a3b | 729 | |
2767fc02 | 730 | char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert) |
731 | { | |
0c50084a | 732 | static char fType[8]; |
9e4cee22 | 733 | memset(fType, 0x00, 8); |
0c50084a | 734 | char *fskType = fType; |
2767fc02 | 735 | if (fchigh==10 && fclow==8){ |
736 | if (invert) //fsk2a | |
38b35095 | 737 | memcpy(fskType, "FSK2a", 5); |
2767fc02 | 738 | else //fsk2 |
38b35095 | 739 | memcpy(fskType, "FSK2", 4); |
2767fc02 | 740 | } else if (fchigh == 8 && fclow == 5) { |
741 | if (invert) | |
38b35095 | 742 | memcpy(fskType, "FSK1", 4); |
2767fc02 | 743 | else |
38b35095 | 744 | memcpy(fskType, "FSK1a", 5); |
2767fc02 | 745 | } else { |
38b35095 | 746 | memcpy(fskType, "FSK??", 5); |
2767fc02 | 747 | } |
748 | return fskType; | |
749 | } | |
750 | ||
2fc2150e | 751 | //by marshmellow |
eb191de6 | 752 | //fsk raw demod and print binary |
6de43508 | 753 | //takes 4 arguments - Clock, invert, fchigh, fclow |
754 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
4ac906d1 | 755 | int FSKrawDemod(const char *Cmd, bool verbose) |
b3b70669 | 756 | { |
e0165dcf | 757 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
506672c4 | 758 | uint8_t rfLen, invert, fchigh, fclow; |
506672c4 | 759 | //set defaults |
e0165dcf | 760 | //set options from parameters entered with the command |
6ca1477c | 761 | rfLen = param_get8(Cmd, 0); |
762 | invert = param_get8(Cmd, 1); | |
763 | fchigh = param_get8(Cmd, 2); | |
764 | fclow = param_get8(Cmd, 3); | |
d1869c33 | 765 | |
e0165dcf | 766 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { |
a0cc89b4 | 767 | if (rfLen==1) { |
2eec55c8 | 768 | invert = 1; //if invert option only is used |
e0165dcf | 769 | rfLen = 0; |
a0cc89b4 | 770 | } |
e0165dcf | 771 | } |
e0165dcf | 772 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
773 | size_t BitLen = getFromGraphBuf(BitStream); | |
774 | if (BitLen==0) return 0; | |
775 | //get field clock lengths | |
a0cc89b4 | 776 | uint16_t fcs=0; |
506672c4 | 777 | if (!fchigh || !fclow) { |
a0cc89b4 | 778 | fcs = countFC(BitStream, BitLen, 1); |
779 | if (!fcs) { | |
780 | fchigh = 10; | |
781 | fclow = 8; | |
782 | } else { | |
783 | fchigh = (fcs >> 8) & 0x00FF; | |
784 | fclow = fcs & 0x00FF; | |
e0165dcf | 785 | } |
786 | } | |
787 | //get bit clock length | |
a0cc89b4 | 788 | if (!rfLen) { |
e0165dcf | 789 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); |
506672c4 | 790 | if (!rfLen) rfLen = 50; |
e0165dcf | 791 | } |
506672c4 | 792 | int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow); |
a0cc89b4 | 793 | if (size > 0) { |
e0165dcf | 794 | setDemodBuf(BitStream,size,0); |
795 | ||
796 | // Now output the bitstream to the scrollback by line of 16 bits | |
2767fc02 | 797 | if (verbose || g_debugMode) { |
a0cc89b4 | 798 | PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow); |
2767fc02 | 799 | PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert)); |
800 | printDemodBuff(); | |
e0165dcf | 801 | } |
d1869c33 | 802 | |
e0165dcf | 803 | return 1; |
506672c4 | 804 | } else { |
2767fc02 | 805 | if (g_debugMode) PrintAndLog("no FSK data found"); |
e0165dcf | 806 | } |
807 | return 0; | |
b3b70669 | 808 | } |
809 | ||
4ac906d1 | 810 | //by marshmellow |
811 | //fsk raw demod and print binary | |
812 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
813 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
814 | int CmdFSKrawdemod(const char *Cmd) | |
815 | { | |
e0165dcf | 816 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 817 | if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 818 | PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]"); |
819 | PrintAndLog(" [set clock as integer] optional, omit for autodetect."); | |
820 | PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted"); | |
821 | PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); | |
822 | PrintAndLog(" [fclow], small field clock length, omit for autodetect"); | |
823 | PrintAndLog(""); | |
824 | PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); | |
825 | PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
826 | PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); | |
827 | PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
828 | PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
829 | PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
830 | PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
831 | return 0; | |
832 | } | |
7cb8516c | 833 | return FSKrawDemod(Cmd, true); |
4ac906d1 | 834 | } |
835 | ||
e770c648 | 836 | //by marshmellow |
837 | //attempt to psk1 demod graph buffer | |
4ac906d1 | 838 | int PSKDemod(const char *Cmd, bool verbose) |
e770c648 | 839 | { |
e0165dcf | 840 | int invert=0; |
841 | int clk=0; | |
842 | int maxErr=100; | |
843 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
844 | if (clk==1){ | |
845 | invert=1; | |
846 | clk=0; | |
847 | } | |
848 | if (invert != 0 && invert != 1) { | |
2ec87733 | 849 | if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd); |
e0165dcf | 850 | return 0; |
851 | } | |
852 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
853 | size_t BitLen = getFromGraphBuf(BitStream); | |
2ec87733 | 854 | if (BitLen==0) return 0; |
e0165dcf | 855 | int errCnt=0; |
856 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); | |
857 | if (errCnt > maxErr){ | |
2767fc02 | 858 | if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 859 | return 0; |
860 | } | |
861 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
2767fc02 | 862 | if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 863 | return 0; |
864 | } | |
2767fc02 | 865 | if (verbose || g_debugMode){ |
866 | PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 867 | if (errCnt>0){ |
2767fc02 | 868 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 869 | } |
870 | } | |
871 | //prime demod buffer for output | |
872 | setDemodBuf(BitStream,BitLen,0); | |
873 | return 1; | |
4118b74d | 874 | } |
e770c648 | 875 | |
04d2721b | 876 | // by marshmellow |
e770c648 | 877 | // takes 3 arguments - clock, invert, maxErr as integers |
878 | // attempts to demodulate nrz only | |
879 | // prints binary found and saves in demodbuffer for further commands | |
b4a2fcf6 | 880 | int NRZrawDemod(const char *Cmd, bool verbose) |
e770c648 | 881 | { |
e0165dcf | 882 | int invert=0; |
883 | int clk=0; | |
884 | int maxErr=100; | |
885 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
886 | if (clk==1){ | |
887 | invert=1; | |
888 | clk=0; | |
889 | } | |
890 | if (invert != 0 && invert != 1) { | |
891 | PrintAndLog("Invalid argument: %s", Cmd); | |
892 | return 0; | |
893 | } | |
894 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
895 | size_t BitLen = getFromGraphBuf(BitStream); | |
896 | if (BitLen==0) return 0; | |
897 | int errCnt=0; | |
6f36848f | 898 | int clkStartIdx = 0; |
899 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, &clkStartIdx); | |
e0165dcf | 900 | if (errCnt > maxErr){ |
901 | if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
902 | return 0; | |
903 | } | |
2eec55c8 | 904 | if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) |
e0165dcf | 905 | if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
906 | return 0; | |
907 | } | |
908 | if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
909 | //prime demod buffer for output | |
910 | setDemodBuf(BitStream,BitLen,0); | |
911 | ||
2767fc02 | 912 | if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 913 | if (verbose || g_debugMode) { |
914 | PrintAndLog("NRZ demoded bitstream:"); | |
915 | // Now output the bitstream to the scrollback by line of 16 bits | |
916 | printDemodBuff(); | |
917 | } | |
918 | return 1; | |
b4a2fcf6 | 919 | } |
920 | ||
921 | int CmdNRZrawDemod(const char *Cmd) | |
922 | { | |
e0165dcf | 923 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 924 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 925 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); |
926 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
927 | PrintAndLog(" <invert>, 1 for invert output"); | |
928 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
929 | PrintAndLog(""); | |
930 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); | |
931 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
932 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
933 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
934 | PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
935 | return 0; | |
936 | } | |
7cb8516c | 937 | return NRZrawDemod(Cmd, true); |
e770c648 | 938 | } |
939 | ||
940 | // by marshmellow | |
941 | // takes 3 arguments - clock, invert, maxErr as integers | |
04d2721b | 942 | // attempts to demodulate psk only |
943 | // prints binary found and saves in demodbuffer for further commands | |
e770c648 | 944 | int CmdPSK1rawDemod(const char *Cmd) |
4118b74d | 945 | { |
e0165dcf | 946 | int ans; |
947 | char cmdp = param_getchar(Cmd, 0); | |
01d0f8ae | 948 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 949 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); |
950 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
951 | PrintAndLog(" <invert>, 1 for invert output"); | |
952 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
953 | PrintAndLog(""); | |
954 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); | |
955 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
956 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
957 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
958 | PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
959 | return 0; | |
960 | } | |
7cb8516c | 961 | ans = PSKDemod(Cmd, true); |
e0165dcf | 962 | //output |
963 | if (!ans){ | |
964 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
965 | return 0; | |
966 | } | |
7a8a982b | 967 | |
2767fc02 | 968 | PrintAndLog("PSK1 demoded bitstream:"); |
e0165dcf | 969 | // Now output the bitstream to the scrollback by line of 16 bits |
970 | printDemodBuff(); | |
971 | return 1; | |
4118b74d | 972 | } |
973 | ||
04d2721b | 974 | // by marshmellow |
19ff0210 | 975 | // takes same args as cmdpsk1rawdemod |
04d2721b | 976 | int CmdPSK2rawDemod(const char *Cmd) |
977 | { | |
e0165dcf | 978 | int ans=0; |
979 | char cmdp = param_getchar(Cmd, 0); | |
01d0f8ae | 980 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 981 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); |
982 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
983 | PrintAndLog(" <invert>, 1 for invert output"); | |
984 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
985 | PrintAndLog(""); | |
986 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
987 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
988 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
989 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
990 | PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); | |
991 | return 0; | |
992 | } | |
7cb8516c | 993 | ans=PSKDemod(Cmd, true); |
e0165dcf | 994 | if (!ans){ |
995 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
996 | return 0; | |
997 | } | |
998 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
999 | PrintAndLog("PSK2 demoded bitstream:"); | |
1000 | // Now output the bitstream to the scrollback by line of 16 bits | |
1001 | printDemodBuff(); | |
1002 | return 1; | |
04d2721b | 1003 | } |
1004 | ||
19ff0210 | 1005 | // by marshmellow - combines all raw demod functions into one menu command |
1006 | int CmdRawDemod(const char *Cmd) | |
1007 | { | |
1008 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
1009 | ||
01d0f8ae | 1010 | if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { |
19ff0210 | 1011 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); |
b41534d1 | 1012 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); |
1013 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
19ff0210 | 1014 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); |
1015 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
1016 | PrintAndLog(""); | |
1fbf8956 | 1017 | PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); |
19ff0210 | 1018 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); |
b41534d1 | 1019 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); |
19ff0210 | 1020 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); |
1021 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
1022 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
1023 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
1024 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
1025 | return 0; | |
1026 | } | |
1027 | char cmdp2 = Cmd[1]; | |
1028 | int ans = 0; | |
1029 | if (cmdp == 'f' && cmdp2 == 's'){ | |
f8f894a5 | 1030 | ans = CmdFSKrawdemod(Cmd+2); |
b41534d1 | 1031 | } else if(cmdp == 'a' && cmdp2 == 'b'){ |
f8f894a5 | 1032 | ans = Cmdaskbiphdemod(Cmd+2); |
19ff0210 | 1033 | } else if(cmdp == 'a' && cmdp2 == 'm'){ |
f8f894a5 | 1034 | ans = Cmdaskmandemod(Cmd+2); |
19ff0210 | 1035 | } else if(cmdp == 'a' && cmdp2 == 'r'){ |
f8f894a5 | 1036 | ans = Cmdaskrawdemod(Cmd+2); |
19ff0210 | 1037 | } else if(cmdp == 'n' && cmdp2 == 'r'){ |
f8f894a5 | 1038 | ans = CmdNRZrawDemod(Cmd+2); |
19ff0210 | 1039 | } else if(cmdp == 'p' && cmdp2 == '1'){ |
f8f894a5 | 1040 | ans = CmdPSK1rawDemod(Cmd+2); |
19ff0210 | 1041 | } else if(cmdp == 'p' && cmdp2 == '2'){ |
f8f894a5 | 1042 | ans = CmdPSK2rawDemod(Cmd+2); |
19ff0210 | 1043 | } else { |
1044 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
1045 | } | |
1046 | return ans; | |
1047 | } | |
1048 | ||
7fe9b0b7 | 1049 | int CmdGrid(const char *Cmd) |
1050 | { | |
e0165dcf | 1051 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); |
1052 | PlotGridXdefault= PlotGridX; | |
1053 | PlotGridYdefault= PlotGridY; | |
1054 | RepaintGraphWindow(); | |
1055 | return 0; | |
7fe9b0b7 | 1056 | } |
1057 | ||
f9f0e83b | 1058 | int CmdSetGraphMarkers(const char *Cmd) { |
1059 | sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos); | |
1060 | RepaintGraphWindow(); | |
1061 | return 0; | |
1062 | } | |
1063 | ||
7fe9b0b7 | 1064 | int CmdHexsamples(const char *Cmd) |
1065 | { | |
e0165dcf | 1066 | int i, j; |
1067 | int requested = 0; | |
1068 | int offset = 0; | |
1069 | char string_buf[25]; | |
1070 | char* string_ptr = string_buf; | |
1071 | uint8_t got[BIGBUF_SIZE]; | |
1072 | ||
1073 | sscanf(Cmd, "%i %i", &requested, &offset); | |
1074 | ||
1075 | /* if no args send something */ | |
1076 | if (requested == 0) { | |
1077 | requested = 8; | |
1078 | } | |
1079 | if (offset + requested > sizeof(got)) { | |
1080 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); | |
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | GetFromBigBuf(got,requested,offset); | |
1085 | WaitForResponse(CMD_ACK,NULL); | |
1086 | ||
1087 | i = 0; | |
1088 | for (j = 0; j < requested; j++) { | |
1089 | i++; | |
1090 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1091 | if (i == 8) { | |
1092 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1093 | PrintAndLog("%s", string_buf); | |
1094 | string_buf[0] = '\0'; | |
1095 | string_ptr = string_buf; | |
1096 | i = 0; | |
1097 | } | |
1098 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1099 | *(string_ptr - 1) = '\0'; | |
1100 | PrintAndLog("%s", string_buf); | |
1101 | string_buf[0] = '\0'; | |
1102 | } | |
1103 | } | |
1104 | return 0; | |
7fe9b0b7 | 1105 | } |
1106 | ||
7fe9b0b7 | 1107 | int CmdHide(const char *Cmd) |
1108 | { | |
e0165dcf | 1109 | HideGraphWindow(); |
1110 | return 0; | |
7fe9b0b7 | 1111 | } |
1112 | ||
78f5b1a7 | 1113 | //zero mean GraphBuffer |
7fe9b0b7 | 1114 | int CmdHpf(const char *Cmd) |
1115 | { | |
e0165dcf | 1116 | int i; |
1117 | int accum = 0; | |
7fe9b0b7 | 1118 | |
e0165dcf | 1119 | for (i = 10; i < GraphTraceLen; ++i) |
1120 | accum += GraphBuffer[i]; | |
1121 | accum /= (GraphTraceLen - 10); | |
1122 | for (i = 0; i < GraphTraceLen; ++i) | |
1123 | GraphBuffer[i] -= accum; | |
7fe9b0b7 | 1124 | |
e0165dcf | 1125 | RepaintGraphWindow(); |
1126 | return 0; | |
7fe9b0b7 | 1127 | } |
f6d9fb17 | 1128 | |
f6821167 | 1129 | uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b) |
f6d9fb17 MHS |
1130 | { |
1131 | int i; | |
1132 | uint8_t val = 0; | |
1133 | for(i =0 ; i < bits_per_sample; i++) | |
1134 | { | |
f6821167 | 1135 | val |= (headBit(b) << (7-i)); |
f6d9fb17 MHS |
1136 | } |
1137 | return val; | |
1138 | } | |
7fe9b0b7 | 1139 | |
b9957414 | 1140 | int getSamples(int n, bool silent) |
7fe9b0b7 | 1141 | { |
e0165dcf | 1142 | //If we get all but the last byte in bigbuf, |
1143 | // we don't have to worry about remaining trash | |
1144 | // in the last byte in case the bits-per-sample | |
1145 | // does not line up on byte boundaries | |
1146 | ||
1147 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; | |
1148 | ||
709665b5 | 1149 | if (n == 0 || n > sizeof(got)) |
e0165dcf | 1150 | n = sizeof(got); |
1151 | ||
b9957414 | 1152 | if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n); |
e0165dcf | 1153 | GetFromBigBuf(got,n,0); |
b9957414 | 1154 | if (!silent) PrintAndLog("Data fetched"); |
e0165dcf | 1155 | UsbCommand response; |
1156 | WaitForResponse(CMD_ACK, &response); | |
1157 | uint8_t bits_per_sample = 8; | |
1158 | ||
1159 | //Old devices without this feature would send 0 at arg[0] | |
1160 | if(response.arg[0] > 0) | |
1161 | { | |
1162 | sample_config *sc = (sample_config *) response.d.asBytes; | |
1163 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
1164 | , sc->decimation); | |
1165 | bits_per_sample = sc->bits_per_sample; | |
1166 | } | |
1167 | if(bits_per_sample < 8) | |
1168 | { | |
b9957414 | 1169 | if (!silent) PrintAndLog("Unpacking..."); |
f6821167 | 1170 | BitstreamIn bout = { got, bits_per_sample * n, 0}; |
e0165dcf | 1171 | int j =0; |
e6432f05 | 1172 | for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) { |
e0165dcf | 1173 | uint8_t sample = getByte(bits_per_sample, &bout); |
1174 | GraphBuffer[j] = ((int) sample )- 128; | |
1175 | } | |
1176 | GraphTraceLen = j; | |
1177 | PrintAndLog("Unpacked %d samples" , j ); | |
1178 | }else | |
1179 | { | |
1180 | for (int j = 0; j < n; j++) { | |
1181 | GraphBuffer[j] = ((int)got[j]) - 128; | |
1182 | } | |
1183 | GraphTraceLen = n; | |
1184 | } | |
1185 | ||
1186 | RepaintGraphWindow(); | |
1187 | return 0; | |
1fbf8956 | 1188 | } |
1189 | ||
1190 | int CmdSamples(const char *Cmd) | |
1191 | { | |
b9957414 | 1192 | int n = strtol(Cmd, NULL, 0); |
1193 | return getSamples(n, false); | |
7fe9b0b7 | 1194 | } |
1195 | ||
d6a120a2 MHS |
1196 | int CmdTuneSamples(const char *Cmd) |
1197 | { | |
fdcfbdcc RAB |
1198 | int timeout = 0, arg = FLAG_TUNE_ALL; |
1199 | ||
1200 | if(*Cmd == 'l') { | |
1201 | arg = FLAG_TUNE_LF; | |
1202 | } else if (*Cmd == 'h') { | |
1203 | arg = FLAG_TUNE_HF; | |
1204 | } else if (*Cmd != '\0') { | |
1205 | PrintAndLog("use 'tune' or 'tune l' or 'tune h'"); | |
1206 | return 0; | |
1207 | } | |
1208 | ||
3aa4014b | 1209 | printf("\nMeasuring antenna characteristics, please wait..."); |
ba1a299c | 1210 | |
fdcfbdcc | 1211 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}}; |
3aa4014b | 1212 | SendCommand(&c); |
1213 | ||
1214 | UsbCommand resp; | |
1215 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
1216 | timeout++; | |
1217 | printf("."); | |
1218 | if (timeout > 7) { | |
1219 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
1220 | return 1; | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | int peakv, peakf; | |
1225 | int vLf125, vLf134, vHf; | |
1226 | vLf125 = resp.arg[0] & 0xffff; | |
1227 | vLf134 = resp.arg[0] >> 16; | |
1228 | vHf = resp.arg[1] & 0xffff;; | |
1229 | peakf = resp.arg[2] & 0xffff; | |
1230 | peakv = resp.arg[2] >> 16; | |
1231 | PrintAndLog(""); | |
1232 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
1233 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
1234 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
1235 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
0d0d0499 | 1236 | |
2767fc02 | 1237 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. |
1238 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
1239 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
1240 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
0d0d0499 | 1241 | |
1242 | if (peakv < LF_UNUSABLE_V) | |
3aa4014b | 1243 | PrintAndLog("# Your LF antenna is unusable."); |
0d0d0499 | 1244 | else if (peakv < LF_MARGINAL_V) |
3aa4014b | 1245 | PrintAndLog("# Your LF antenna is marginal."); |
0d0d0499 | 1246 | if (vHf < HF_UNUSABLE_V) |
3aa4014b | 1247 | PrintAndLog("# Your HF antenna is unusable."); |
0d0d0499 | 1248 | else if (vHf < HF_MARGINAL_V) |
3aa4014b | 1249 | PrintAndLog("# Your HF antenna is marginal."); |
1250 | ||
0d0d0499 | 1251 | if (peakv >= LF_UNUSABLE_V) { |
1252 | for (int i = 0; i < 256; i++) { | |
1253 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
1254 | } | |
1255 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
1256 | PrintAndLog("\n"); | |
1257 | GraphTraceLen = 256; | |
1258 | ShowGraphWindow(); | |
abd16c45 | 1259 | RepaintGraphWindow(); |
ba1a299c | 1260 | } |
1261 | ||
b4fb11ba | 1262 | return 0; |
d6a120a2 MHS |
1263 | } |
1264 | ||
3aa4014b | 1265 | |
7fe9b0b7 | 1266 | int CmdLoad(const char *Cmd) |
1267 | { | |
e0165dcf | 1268 | char filename[FILE_PATH_SIZE] = {0x00}; |
1269 | int len = 0; | |
b915fda3 | 1270 | |
e0165dcf | 1271 | len = strlen(Cmd); |
1272 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1273 | memcpy(filename, Cmd, len); | |
b915fda3 | 1274 | |
e0165dcf | 1275 | FILE *f = fopen(filename, "r"); |
1276 | if (!f) { | |
1277 | PrintAndLog("couldn't open '%s'", filename); | |
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | GraphTraceLen = 0; | |
1282 | char line[80]; | |
1283 | while (fgets(line, sizeof (line), f)) { | |
1284 | GraphBuffer[GraphTraceLen] = atoi(line); | |
1285 | GraphTraceLen++; | |
1286 | } | |
1287 | fclose(f); | |
1288 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
1289 | RepaintGraphWindow(); | |
1290 | return 0; | |
7fe9b0b7 | 1291 | } |
1292 | ||
1293 | int CmdLtrim(const char *Cmd) | |
1294 | { | |
e0165dcf | 1295 | int ds = atoi(Cmd); |
cc15a118 | 1296 | if (GraphTraceLen<=0) return 0; |
e0165dcf | 1297 | for (int i = ds; i < GraphTraceLen; ++i) |
1298 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
1299 | GraphTraceLen -= ds; | |
7fe9b0b7 | 1300 | |
e0165dcf | 1301 | RepaintGraphWindow(); |
1302 | return 0; | |
7fe9b0b7 | 1303 | } |
ec75f5c1 | 1304 | |
1305 | // trim graph to input argument length | |
9ec1416a | 1306 | int CmdRtrim(const char *Cmd) |
1307 | { | |
e0165dcf | 1308 | int ds = atoi(Cmd); |
9ec1416a | 1309 | |
e0165dcf | 1310 | GraphTraceLen = ds; |
9ec1416a | 1311 | |
e0165dcf | 1312 | RepaintGraphWindow(); |
1313 | return 0; | |
9ec1416a | 1314 | } |
7fe9b0b7 | 1315 | |
f75b313b | 1316 | // trim graph (middle) piece |
1317 | int CmdMtrim(const char *Cmd) { | |
1318 | int start = 0, stop = 0; | |
1319 | sscanf(Cmd, "%i %i", &start, &stop); | |
1320 | ||
1321 | if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0; | |
1322 | start++; //leave start position sample | |
1323 | ||
3991b2ec | 1324 | GraphTraceLen = stop - start; |
f75b313b | 1325 | for (int i = 0; i < GraphTraceLen; i++) { |
3991b2ec | 1326 | GraphBuffer[i] = GraphBuffer[start+i]; |
f75b313b | 1327 | } |
1328 | return 0; | |
1329 | } | |
1330 | ||
1331 | ||
7fe9b0b7 | 1332 | int CmdNorm(const char *Cmd) |
1333 | { | |
e0165dcf | 1334 | int i; |
1335 | int max = INT_MIN, min = INT_MAX; | |
7fe9b0b7 | 1336 | |
e0165dcf | 1337 | for (i = 10; i < GraphTraceLen; ++i) { |
1338 | if (GraphBuffer[i] > max) | |
1339 | max = GraphBuffer[i]; | |
1340 | if (GraphBuffer[i] < min) | |
1341 | min = GraphBuffer[i]; | |
1342 | } | |
7fe9b0b7 | 1343 | |
e0165dcf | 1344 | if (max != min) { |
1345 | for (i = 0; i < GraphTraceLen; ++i) { | |
ba1a299c | 1346 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / |
e0165dcf | 1347 | (max - min); |
ba1a299c | 1348 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work |
e0165dcf | 1349 | } |
1350 | } | |
1351 | RepaintGraphWindow(); | |
1352 | return 0; | |
7fe9b0b7 | 1353 | } |
1354 | ||
1355 | int CmdPlot(const char *Cmd) | |
1356 | { | |
e0165dcf | 1357 | ShowGraphWindow(); |
1358 | return 0; | |
7fe9b0b7 | 1359 | } |
1360 | ||
1361 | int CmdSave(const char *Cmd) | |
1362 | { | |
e0165dcf | 1363 | char filename[FILE_PATH_SIZE] = {0x00}; |
1364 | int len = 0; | |
b915fda3 | 1365 | |
e0165dcf | 1366 | len = strlen(Cmd); |
1367 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1368 | memcpy(filename, Cmd, len); | |
1369 | ||
b915fda3 | 1370 | |
e0165dcf | 1371 | FILE *f = fopen(filename, "w"); |
1372 | if(!f) { | |
1373 | PrintAndLog("couldn't open '%s'", filename); | |
1374 | return 0; | |
1375 | } | |
1376 | int i; | |
1377 | for (i = 0; i < GraphTraceLen; i++) { | |
1378 | fprintf(f, "%d\n", GraphBuffer[i]); | |
1379 | } | |
1380 | fclose(f); | |
1381 | PrintAndLog("saved to '%s'", Cmd); | |
1382 | return 0; | |
7fe9b0b7 | 1383 | } |
1384 | ||
1385 | int CmdScale(const char *Cmd) | |
1386 | { | |
e0165dcf | 1387 | CursorScaleFactor = atoi(Cmd); |
1388 | if (CursorScaleFactor == 0) { | |
1389 | PrintAndLog("bad, can't have zero scale"); | |
1390 | CursorScaleFactor = 1; | |
1391 | } | |
1392 | RepaintGraphWindow(); | |
1393 | return 0; | |
7fe9b0b7 | 1394 | } |
1395 | ||
d51b2eda MHS |
1396 | int CmdDirectionalThreshold(const char *Cmd) |
1397 | { | |
e0165dcf | 1398 | int8_t upThres = param_get8(Cmd, 0); |
1399 | int8_t downThres = param_get8(Cmd, 1); | |
1400 | ||
1401 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); | |
1402 | ||
1403 | int lastValue = GraphBuffer[0]; | |
1404 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
1405 | ||
1406 | for (int i = 1; i < GraphTraceLen; ++i) { | |
1407 | // Apply first threshold to samples heading up | |
1408 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
1409 | { | |
1410 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
127f1490 | 1411 | GraphBuffer[i] = 127; |
e0165dcf | 1412 | } |
1413 | // Apply second threshold to samples heading down | |
1414 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
1415 | { | |
1416 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
127f1490 | 1417 | GraphBuffer[i] = -127; |
e0165dcf | 1418 | } |
1419 | else | |
1420 | { | |
1421 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
1422 | GraphBuffer[i] = GraphBuffer[i-1]; | |
1423 | ||
1424 | } | |
1425 | } | |
1426 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
1427 | RepaintGraphWindow(); | |
1428 | return 0; | |
d51b2eda MHS |
1429 | } |
1430 | ||
7fe9b0b7 | 1431 | int CmdZerocrossings(const char *Cmd) |
1432 | { | |
e0165dcf | 1433 | // Zero-crossings aren't meaningful unless the signal is zero-mean. |
1434 | CmdHpf(""); | |
1435 | ||
1436 | int sign = 1; | |
1437 | int zc = 0; | |
1438 | int lastZc = 0; | |
1439 | ||
1440 | for (int i = 0; i < GraphTraceLen; ++i) { | |
1441 | if (GraphBuffer[i] * sign >= 0) { | |
1442 | // No change in sign, reproduce the previous sample count. | |
1443 | zc++; | |
1444 | GraphBuffer[i] = lastZc; | |
1445 | } else { | |
1446 | // Change in sign, reset the sample count. | |
1447 | sign = -sign; | |
1448 | GraphBuffer[i] = lastZc; | |
1449 | if (sign > 0) { | |
1450 | lastZc = zc; | |
1451 | zc = 0; | |
1452 | } | |
1453 | } | |
1454 | } | |
1455 | ||
1456 | RepaintGraphWindow(); | |
1457 | return 0; | |
7fe9b0b7 | 1458 | } |
1459 | ||
f6821167 MHS |
1460 | int usage_data_bin2hex(){ |
1461 | PrintAndLog("Usage: data bin2hex <binary_digits>"); | |
1462 | PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)"); | |
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | /** | |
1467 | * @brief Utility for conversion via cmdline. | |
1468 | * @param Cmd | |
1469 | * @return | |
1470 | */ | |
1471 | int Cmdbin2hex(const char *Cmd) | |
1472 | { | |
1473 | int bg =0, en =0; | |
1474 | if(param_getptr(Cmd, &bg, &en, 0)) | |
1475 | { | |
1476 | return usage_data_bin2hex(); | |
1477 | } | |
1478 | //Number of digits supplied as argument | |
1479 | size_t length = en - bg +1; | |
1480 | size_t bytelen = (length+7) / 8; | |
1481 | uint8_t* arr = (uint8_t *) malloc(bytelen); | |
1482 | memset(arr, 0, bytelen); | |
1483 | BitstreamOut bout = { arr, 0, 0 }; | |
1484 | ||
1485 | for(; bg <= en ;bg++) | |
1486 | { | |
1487 | char c = Cmd[bg]; | |
1488 | if( c == '1') pushBit(&bout, 1); | |
1489 | else if( c == '0') pushBit(&bout, 0); | |
1490 | else PrintAndLog("Ignoring '%c'", c); | |
1491 | } | |
1492 | ||
1493 | if(bout.numbits % 8 != 0) | |
1494 | { | |
1495 | printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8)); | |
1496 | } | |
1497 | ||
1498 | //Uses printf instead of PrintAndLog since the latter | |
1499 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
1500 | // allocate a string and write to that first... | |
1501 | for(size_t x = 0; x < bytelen ; x++) | |
1502 | { | |
1503 | printf("%02X", arr[x]); | |
1504 | } | |
1505 | printf("\n"); | |
1506 | free(arr); | |
1507 | return 0; | |
1508 | } | |
1509 | ||
72c5877a | 1510 | int usage_data_hex2bin() { |
1511 | PrintAndLog("Usage: data hex2bin <hex_digits>"); | |
f6821167 MHS |
1512 | PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)"); |
1513 | return 0; | |
1514 | ||
1515 | } | |
1516 | ||
1517 | int Cmdhex2bin(const char *Cmd) | |
1518 | { | |
1519 | int bg =0, en =0; | |
1520 | if(param_getptr(Cmd, &bg, &en, 0)) | |
1521 | { | |
1522 | return usage_data_hex2bin(); | |
1523 | } | |
1524 | ||
1525 | ||
1526 | while(bg <= en ) | |
1527 | { | |
1528 | char x = Cmd[bg++]; | |
1529 | // capitalize | |
1530 | if (x >= 'a' && x <= 'f') | |
1531 | x -= 32; | |
1532 | // convert to numeric value | |
1533 | if (x >= '0' && x <= '9') | |
1534 | x -= '0'; | |
1535 | else if (x >= 'A' && x <= 'F') | |
1536 | x -= 'A' - 10; | |
1537 | else | |
1538 | continue; | |
1539 | ||
1540 | //Uses printf instead of PrintAndLog since the latter | |
1541 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
1542 | // allocate a string and write to that first... | |
1543 | ||
1544 | for(int i= 0 ; i < 4 ; ++i) | |
1545 | printf("%d",(x >> (3 - i)) & 1); | |
1546 | } | |
1547 | printf("\n"); | |
1548 | ||
1549 | return 0; | |
1550 | } | |
1551 | ||
ba1a299c | 1552 | static command_t CommandTable[] = |
7fe9b0b7 | 1553 | { |
e0165dcf | 1554 | {"help", CmdHelp, 1, "This help"}, |
49bbc60a | 1555 | {"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def:25)"}, |
e0165dcf | 1556 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, |
fef74fdc | 1557 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, |
5d01f50a | 1558 | {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"}, |
e0165dcf | 1559 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, |
e0165dcf | 1560 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, |
1561 | {"dec", CmdDec, 1, "Decimate samples"}, | |
1562 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, | |
e0165dcf | 1563 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, |
e0165dcf | 1564 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, |
1565 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, | |
1566 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, | |
f6821167 | 1567 | {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"}, |
e0165dcf | 1568 | {"hide", CmdHide, 1, "Hide graph window"}, |
1569 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
1570 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, | |
1571 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
1572 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, | |
f75b313b | 1573 | {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"}, |
fef74fdc | 1574 | {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"}, |
e0165dcf | 1575 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, |
1576 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, | |
ace26dbd | 1577 | {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"}, |
e0165dcf | 1578 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, |
1579 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
1580 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, | |
f9f0e83b | 1581 | {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"}, |
e0165dcf | 1582 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, |
709665b5 | 1583 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"}, |
e0165dcf | 1584 | {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, |
e0165dcf | 1585 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, |
1586 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
1587 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, | |
1588 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, | |
1589 | {NULL, NULL, 0, NULL} | |
7fe9b0b7 | 1590 | }; |
1591 | ||
1592 | int CmdData(const char *Cmd) | |
1593 | { | |
e0165dcf | 1594 | CmdsParse(CommandTable, Cmd); |
1595 | return 0; | |
7fe9b0b7 | 1596 | } |
1597 | ||
1598 | int CmdHelp(const char *Cmd) | |
1599 | { | |
e0165dcf | 1600 | CmdsHelp(CommandTable); |
1601 | return 0; | |
7fe9b0b7 | 1602 | } |