mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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2150 lines
78 KiB
C
2150 lines
78 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Data and Graph commands
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//-----------------------------------------------------------------------------
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#include "cmddata.h"
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uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
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//uint8_t g_debugMode = 0;
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size_t DemodBufferLen = 0;
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size_t g_DemodStartIdx = 0;
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int g_DemodClock = 0;
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static int CmdHelp(const char *Cmd);
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static int usage_data_printdemodbuf(void) {
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PrintAndLogEx(NORMAL, "Usage: data printdemodbuffer x o <offset> l <length>");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h This help");
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PrintAndLogEx(NORMAL, " x output in hex (omit for binary output)");
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PrintAndLogEx(NORMAL, " o <offset> enter offset in # of bits");
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PrintAndLogEx(NORMAL, " l <length> enter length to print in # of bits or hex characters respectively");
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return 0;
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}
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static int usage_data_manrawdecode(void) {
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PrintAndLogEx(NORMAL, "Usage: data manrawdecode [invert] [maxErr]");
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PrintAndLogEx(NORMAL, " Takes 10 and 01 and converts to 0 and 1 respectively");
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PrintAndLogEx(NORMAL, " --must have binary sequence in demodbuffer (run data askrawdemod first)");
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PrintAndLogEx(NORMAL, " [invert] invert output");
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PrintAndLogEx(NORMAL, " [maxErr] set number of errors allowed (default = 20)");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data manrawdecode = decode manchester bitstream from the demodbuffer");
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return 0;
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}
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static int usage_data_biphaserawdecode(void) {
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PrintAndLogEx(NORMAL, "Usage: data biphaserawdecode [offset] [invert] [maxErr]");
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PrintAndLogEx(NORMAL, " Converts 10 or 01 to 1 and 11 or 00 to 0");
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PrintAndLogEx(NORMAL, " --must have binary sequence in demodbuffer (run data askrawdemod first)");
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PrintAndLogEx(NORMAL, " --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
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PrintAndLogEx(NORMAL, " [invert <0|1>], set to 1 to invert output");
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PrintAndLogEx(NORMAL, " [maxErr int], set max errors tolerated - default=20");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
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PrintAndLogEx(NORMAL, " Example: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
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return 0;
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}
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static int usage_data_rawdemod(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod [modulation] <help>|<options>");
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PrintAndLogEx(NORMAL, " [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
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PrintAndLogEx(NORMAL, " 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
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PrintAndLogEx(NORMAL, " <help> as 'h', prints the help for the specific modulation");
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PrintAndLogEx(NORMAL, " <options> see specific modulation help for optional parameters");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod fs h = print help specific to fsk demod");
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PrintAndLogEx(NORMAL, " : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
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PrintAndLogEx(NORMAL, " : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
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PrintAndLogEx(NORMAL, " : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
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PrintAndLogEx(NORMAL, " : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
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PrintAndLogEx(NORMAL, " : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
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PrintAndLogEx(NORMAL, " : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
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PrintAndLogEx(NORMAL, " : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
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return 0;
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}
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static int usage_data_rawdemod_am(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
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PrintAndLogEx(NORMAL, " ['s'] optional, check for Sequence Terminator");
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PrintAndLogEx(NORMAL, " [set clock as integer] optional, if not set, autodetect");
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PrintAndLogEx(NORMAL, " <invert>, 1 to invert output");
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PrintAndLogEx(NORMAL, " [set maximum allowed errors], default = 100");
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PrintAndLogEx(NORMAL, " [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
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PrintAndLogEx(NORMAL, " <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
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PrintAndLogEx(NORMAL, " : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
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PrintAndLogEx(NORMAL, " : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
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PrintAndLogEx(NORMAL, " : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
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PrintAndLogEx(NORMAL, " : 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");
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return 0;
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}
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static int usage_data_rawdemod_ab(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
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PrintAndLogEx(NORMAL, " [offset], offset to begin biphase, default=0");
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PrintAndLogEx(NORMAL, " [set clock as integer] optional, if not set, autodetect");
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PrintAndLogEx(NORMAL, " <invert>, 1 to invert output");
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PrintAndLogEx(NORMAL, " [set maximum allowed errors], default = 100");
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PrintAndLogEx(NORMAL, " [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
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PrintAndLogEx(NORMAL, " <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
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PrintAndLogEx(NORMAL, " NOTE: <invert> can be entered as second or third argument");
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PrintAndLogEx(NORMAL, " NOTE: <amplify> can be entered as first, second or last argument");
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PrintAndLogEx(NORMAL, " NOTE: any other arg must have previous args set to work");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
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PrintAndLogEx(NORMAL, " : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
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PrintAndLogEx(NORMAL, " : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
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PrintAndLogEx(NORMAL, " : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
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PrintAndLogEx(NORMAL, " : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
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PrintAndLogEx(NORMAL, " : 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");
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PrintAndLogEx(NORMAL, " : 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");
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return 0;
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}
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static int usage_data_rawdemod_ar(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
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PrintAndLogEx(NORMAL, " [set clock as integer] optional, if not set, autodetect");
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PrintAndLogEx(NORMAL, " <invert>, 1 to invert output");
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PrintAndLogEx(NORMAL, " [set maximum allowed errors], default = 100");
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PrintAndLogEx(NORMAL, " [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
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PrintAndLogEx(NORMAL, " <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod ar = demod an ask tag from GraphBuffer");
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PrintAndLogEx(NORMAL, " : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
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PrintAndLogEx(NORMAL, " : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
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PrintAndLogEx(NORMAL, " : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
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PrintAndLogEx(NORMAL, " : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
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PrintAndLogEx(NORMAL, " : 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");
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PrintAndLogEx(NORMAL, " : 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");
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return 0;
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}
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static int usage_data_rawdemod_fs(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
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PrintAndLogEx(NORMAL, " [set clock as integer] optional, omit for autodetect.");
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PrintAndLogEx(NORMAL, " <invert>, 1 for invert output, can be used even if the clock is omitted");
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PrintAndLogEx(NORMAL, " [fchigh], larger field clock length, omit for autodetect");
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PrintAndLogEx(NORMAL, " [fclow], small field clock length, omit for autodetect");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
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PrintAndLogEx(NORMAL, " : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
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PrintAndLogEx(NORMAL, " : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
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PrintAndLogEx(NORMAL, " : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
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PrintAndLogEx(NORMAL, " : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
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PrintAndLogEx(NORMAL, " : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
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PrintAndLogEx(NORMAL, " : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
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return 0;
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}
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static int usage_data_rawdemod_nr(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod nr [clock] <0|1> [maxError]");
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PrintAndLogEx(NORMAL, " [set clock as integer] optional, if not set, autodetect.");
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PrintAndLogEx(NORMAL, " <invert>, 1 for invert output");
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PrintAndLogEx(NORMAL, " [set maximum allowed errors], default = 100.");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
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PrintAndLogEx(NORMAL, " : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
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PrintAndLogEx(NORMAL, " : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
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PrintAndLogEx(NORMAL, " : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
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PrintAndLogEx(NORMAL, " : 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");
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return 0;
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}
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static int usage_data_rawdemod_p1(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod p1 [clock] <0|1> [maxError]");
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PrintAndLogEx(NORMAL, " [set clock as integer] optional, if not set, autodetect.");
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PrintAndLogEx(NORMAL, " <invert>, 1 for invert output");
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PrintAndLogEx(NORMAL, " [set maximum allowed errors], default = 100.");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
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PrintAndLogEx(NORMAL, " : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
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PrintAndLogEx(NORMAL, " : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
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PrintAndLogEx(NORMAL, " : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
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PrintAndLogEx(NORMAL, " : 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");
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return 0;
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}
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static int usage_data_rawdemod_p2(void) {
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PrintAndLogEx(NORMAL, "Usage: data rawdemod p2 [clock] <0|1> [maxError]");
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PrintAndLogEx(NORMAL, " [set clock as integer] optional, if not set, autodetect.");
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PrintAndLogEx(NORMAL, " <invert>, 1 for invert output");
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PrintAndLogEx(NORMAL, " [set maximum allowed errors], default = 100.");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
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PrintAndLogEx(NORMAL, " : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
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PrintAndLogEx(NORMAL, " : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
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PrintAndLogEx(NORMAL, " : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
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PrintAndLogEx(NORMAL, " : 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");
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return 0;
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}
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static int usage_data_autocorr(void) {
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PrintAndLogEx(NORMAL, "Autocorrelate is used to detect repeating sequences. We use it as detection of length in bits a message inside the signal is");
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PrintAndLogEx(NORMAL, "Usage: data autocorr w <window> [g]");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h This help");
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PrintAndLogEx(NORMAL, " w <window> window length for correlation - default = 4000");
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PrintAndLogEx(NORMAL, " g save back to GraphBuffer (overwrite)");
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return 0;
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}
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static int usage_data_undecimate(void) {
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PrintAndLogEx(NORMAL, "Usage: data undec [factor]");
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PrintAndLogEx(NORMAL, "This function performs un-decimation, by repeating each sample N times");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h This help");
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PrintAndLogEx(NORMAL, " factor The number of times to repeat each sample.[default:2]");
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PrintAndLogEx(NORMAL, "Example: 'data undec 3'");
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return 0;
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}
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static int usage_data_detectclock(void) {
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PrintAndLogEx(NORMAL, "Usage: data detectclock [modulation] <clock>");
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PrintAndLogEx(NORMAL, " [modulation as char], specify the modulation type you want to detect the clock of");
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PrintAndLogEx(NORMAL, " <clock> , specify the clock (optional - to get best start position only)");
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PrintAndLogEx(NORMAL, " 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, " Example: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
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PrintAndLogEx(NORMAL, " data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
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PrintAndLogEx(NORMAL, " data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
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PrintAndLogEx(NORMAL, " data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
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return 0;
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}
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static int usage_data_hex2bin(void) {
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PrintAndLogEx(NORMAL, "Usage: data hex2bin <hex_digits>");
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PrintAndLogEx(NORMAL, " This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
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return 0;
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}
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static int usage_data_bin2hex(void) {
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PrintAndLogEx(NORMAL, "Usage: data bin2hex <binary_digits>");
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PrintAndLogEx(NORMAL, " This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
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return 0;
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}
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static int usage_data_buffclear(void) {
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PrintAndLogEx(NORMAL, "This function clears the bigbuff on deviceside");
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PrintAndLogEx(NORMAL, "Usage: data buffclear [h]");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h This help");
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return 0;
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}
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static int usage_data_fsktonrz() {
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PrintAndLogEx(NORMAL, "Usage: data fsktonrz c <clock> l <fc_low> f <fc_high>");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h This help");
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PrintAndLogEx(NORMAL, " c <clock> enter the a clock (omit to autodetect)");
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PrintAndLogEx(NORMAL, " l <fc_low> enter a field clock (omit to autodetect)");
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PrintAndLogEx(NORMAL, " f <fc_high> enter a field clock (omit to autodetect)");
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return 0;
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}
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//set the demod buffer with given array of binary (one bit per byte)
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//by marshmellow
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void setDemodBuff(uint8_t *buff, size_t size, size_t start_idx) {
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if (buff == NULL) return;
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if (size > MAX_DEMOD_BUF_LEN - start_idx)
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size = MAX_DEMOD_BUF_LEN - start_idx;
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for (size_t i = 0; i < size; i++)
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DemodBuffer[i] = buff[start_idx++];
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DemodBufferLen = size;
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}
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bool getDemodBuff(uint8_t *buff, size_t *size) {
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if (buff == NULL) return false;
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if (size == NULL) return false;
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if (*size == 0) return false;
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*size = (*size > DemodBufferLen) ? DemodBufferLen : *size;
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memcpy(buff, DemodBuffer, *size);
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return true;
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}
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// include <math.h>
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// Root mean square
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double rms(double *v, size_t n) {
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double sum = 0.0;
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for (size_t i = 0; i < n; i++)
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sum += v[i] * v[i];
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return sqrt(sum / n);
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}
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int cmp_int(const void *a, const void *b) {
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if (*(const int *)a < * (const int *)b)
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return -1;
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else
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return *(const int *)a > *(const int *)b;
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}
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int cmp_uint8(const void *a, const void *b) {
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if (*(const uint8_t *)a < * (const uint8_t *)b)
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return -1;
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else
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return *(const uint8_t *)a > *(const uint8_t *)b;
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}
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// Median of a array of values
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double median_int(int *src, size_t size) {
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qsort(src, size, sizeof(int), cmp_int);
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return 0.5 * (src[size / 2] + src[(size - 1) / 2]);
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}
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double median_uint8(uint8_t *src, size_t size) {
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qsort(src, size, sizeof(uint8_t), cmp_uint8);
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return 0.5 * (src[size / 2] + src[(size - 1) / 2]);
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}
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// function to compute mean for a series
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static double compute_mean(const int *data, size_t n) {
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double mean = 0.0;
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for (size_t i = 0; i < n; i++)
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mean += data[i];
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mean /= n;
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return mean;
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}
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// function to compute variance for a series
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static double compute_variance(const int *data, size_t n) {
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double variance = 0.0;
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double mean = compute_mean(data, n);
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for (size_t i = 0; i < n; i++)
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variance += pow((data[i] - mean), 2.0);
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variance /= n;
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return variance;
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}
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// Function to compute autocorrelation for a series
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// Author: Kenneth J. Christensen
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// - Corrected divide by n to divide (n - lag) from Tobias Mueller
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/*
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static double compute_autoc(const int *data, size_t n, int lag) {
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double autocv = 0.0; // Autocovariance value
|
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double ac_value; // Computed autocorrelation value to be returned
|
|
double variance; // Computed variance
|
|
double mean;
|
|
|
|
mean = compute_mean(data, n);
|
|
variance = compute_variance(data, n);
|
|
|
|
for (size_t i=0; i < (n - lag); i++)
|
|
autocv += (data[i] - mean) * (data[i+lag] - mean);
|
|
|
|
autocv = (1.0 / (n - lag)) * autocv;
|
|
|
|
// Autocorrelation is autocovariance divided by variance
|
|
ac_value = autocv / variance;
|
|
return ac_value;
|
|
}
|
|
*/
|
|
|
|
// option '1' to save DemodBuffer any other to restore
|
|
void save_restoreDB(uint8_t saveOpt) {
|
|
static uint8_t SavedDB[MAX_DEMOD_BUF_LEN];
|
|
static size_t SavedDBlen;
|
|
static bool DB_Saved = false;
|
|
static size_t savedDemodStartIdx = 0;
|
|
static int savedDemodClock = 0;
|
|
|
|
if (saveOpt == GRAPH_SAVE) { //save
|
|
|
|
memcpy(SavedDB, DemodBuffer, sizeof(DemodBuffer));
|
|
SavedDBlen = DemodBufferLen;
|
|
DB_Saved = true;
|
|
savedDemodStartIdx = g_DemodStartIdx;
|
|
savedDemodClock = g_DemodClock;
|
|
} else if (DB_Saved) { //restore
|
|
|
|
memcpy(DemodBuffer, SavedDB, sizeof(DemodBuffer));
|
|
DemodBufferLen = SavedDBlen;
|
|
g_DemodClock = savedDemodClock;
|
|
g_DemodStartIdx = savedDemodStartIdx;
|
|
}
|
|
}
|
|
|
|
int CmdSetDebugMode(const char *Cmd) {
|
|
int demod = 0;
|
|
sscanf(Cmd, "%i", &demod);
|
|
g_debugMode = (uint8_t)demod;
|
|
return 1;
|
|
}
|
|
|
|
//by marshmellow
|
|
// max output to 512 bits if we have more
|
|
// doesn't take inconsideration where the demod offset or bitlen found.
|
|
void printDemodBuff(void) {
|
|
int len = DemodBufferLen;
|
|
if (len < 1) {
|
|
PrintAndLogEx(NORMAL, "(printDemodBuff) no bits found in demod buffer");
|
|
return;
|
|
}
|
|
if (len > 512) len = 512;
|
|
|
|
PrintAndLogEx(NORMAL, "%s", sprint_bin_break(DemodBuffer, len, 32));
|
|
}
|
|
|
|
int CmdPrintDemodBuff(const char *Cmd) {
|
|
char hex[512] = {0x00};
|
|
bool hexMode = false;
|
|
bool errors = false;
|
|
uint32_t offset = 0;
|
|
uint32_t length = 512;
|
|
char cmdp = 0;
|
|
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
|
|
switch (tolower(param_getchar(Cmd, cmdp))) {
|
|
case 'h':
|
|
return usage_data_printdemodbuf();
|
|
case 'x':
|
|
hexMode = true;
|
|
cmdp++;
|
|
break;
|
|
case 'o':
|
|
offset = param_get32ex(Cmd, cmdp + 1, 0, 10);
|
|
if (!offset) errors = true;
|
|
cmdp += 2;
|
|
break;
|
|
case 'l':
|
|
length = param_get32ex(Cmd, cmdp + 1, 512, 10);
|
|
if (!length) errors = true;
|
|
cmdp += 2;
|
|
break;
|
|
default:
|
|
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
|
|
errors = true;
|
|
break;
|
|
}
|
|
}
|
|
//Validations
|
|
if (errors) return usage_data_printdemodbuf();
|
|
|
|
if (DemodBufferLen == 0) {
|
|
PrintAndLogEx(NORMAL, "Demodbuffer is empty");
|
|
return 0;
|
|
}
|
|
length = (length > (DemodBufferLen - offset)) ? DemodBufferLen - offset : length;
|
|
|
|
if (hexMode) {
|
|
char *buf = (char *)(DemodBuffer + offset);
|
|
int numBits = binarraytohex(hex, sizeof(hex), buf, length);
|
|
if (numBits == 0) {
|
|
return 0;
|
|
}
|
|
PrintAndLogEx(NORMAL, "DemodBuffer: %s", hex);
|
|
} else {
|
|
PrintAndLogEx(NORMAL, "DemodBuffer:\n%s", sprint_bin_break(DemodBuffer + offset, length, 32));
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
//by marshmellow
|
|
//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
|
|
int CmdGetBitStream(const char *Cmd) {
|
|
CmdHpf(Cmd);
|
|
for (uint32_t i = 0; i < GraphTraceLen; i++)
|
|
GraphBuffer[i] = (GraphBuffer[i] >= 1) ? 1 : 0;
|
|
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
//by marshmellow
|
|
//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
|
|
// (amp may not be needed anymore)
|
|
//verbose will print results and demoding messages
|
|
//emSearch will auto search for EM410x format in bitstream
|
|
//askType switches decode: ask/raw = 0, ask/manchester = 1
|
|
int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
|
|
int invert = 0;
|
|
int clk = 0;
|
|
int maxErr = 100;
|
|
int maxLen = 0;
|
|
uint8_t askamp = 0;
|
|
char amp = tolower(param_getchar(Cmd, 0));
|
|
uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0};
|
|
|
|
sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &);
|
|
|
|
if (!maxLen) maxLen = BIGBUF_SIZE;
|
|
|
|
if (invert != 0 && invert != 1) {
|
|
PrintAndLogEx(WARNING, "Invalid argument: %s", Cmd);
|
|
return 0;
|
|
}
|
|
|
|
if (clk == 1) {
|
|
invert = 1;
|
|
clk = 0;
|
|
}
|
|
|
|
size_t BitLen = getFromGraphBuf(bits);
|
|
|
|
PrintAndLogEx(DEBUG, "DEBUG: (ASKDemod_ext) #samples from graphbuff: %d", BitLen);
|
|
|
|
if (BitLen < 255) return 0;
|
|
|
|
if (maxLen < BitLen && maxLen != 0) BitLen = maxLen;
|
|
|
|
int foundclk = 0;
|
|
|
|
//amplify signal before ST check
|
|
if (amp == 'a') {
|
|
askAmp(bits, BitLen);
|
|
}
|
|
|
|
size_t ststart = 0, stend = 0;
|
|
// if (*stCheck)
|
|
bool st = DetectST(bits, &BitLen, &foundclk, &ststart, &stend);
|
|
|
|
if (clk == 0) {
|
|
if (foundclk == 32 || foundclk == 64) {
|
|
clk = foundclk;
|
|
}
|
|
}
|
|
|
|
if (st) {
|
|
*stCheck = st;
|
|
CursorCPos = ststart;
|
|
CursorDPos = stend;
|
|
if (verbose)
|
|
PrintAndLogEx(DEBUG, "Found Sequence Terminator - First one is shown by orange / blue graph markers");
|
|
}
|
|
|
|
int startIdx = 0;
|
|
int errCnt = askdemod_ext(bits, &BitLen, &clk, &invert, maxErr, askamp, askType, &startIdx);
|
|
|
|
if (errCnt < 0 || BitLen < 16) { //if fatal error (or -1)
|
|
PrintAndLogEx(DEBUG, "DEBUG: (ASKDemod_ext) No data found errors:%d, invert:%c, bitlen:%d, clock:%d", errCnt, (invert) ? 'Y' : 'N', BitLen, clk);
|
|
return 0;
|
|
}
|
|
|
|
if (errCnt > maxErr) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: (ASKDemod_ext) Too many errors found, errors:%d, bits:%d, clock:%d", errCnt, BitLen, clk);
|
|
return 0;
|
|
}
|
|
|
|
if (verbose) PrintAndLogEx(DEBUG, "DEBUG: (ASKDemod_ext) Using clock:%d, invert:%d, bits found:%d", clk, invert, BitLen);
|
|
|
|
//output
|
|
setDemodBuff(bits, BitLen, 0);
|
|
setClockGrid(clk, startIdx);
|
|
|
|
if (verbose) {
|
|
if (errCnt > 0)
|
|
PrintAndLogEx(DEBUG, "# Errors during Demoding (shown as 7 in bit stream): %d", errCnt);
|
|
if (askType)
|
|
PrintAndLogEx(DEBUG, "ASK/Manchester - Clock: %d - Decoded bitstream:", clk);
|
|
else
|
|
PrintAndLogEx(DEBUG, "ASK/Raw - Clock: %d - Decoded bitstream:", clk);
|
|
|
|
printDemodBuff();
|
|
}
|
|
uint64_t lo = 0;
|
|
uint32_t hi = 0;
|
|
if (emSearch)
|
|
AskEm410xDecode(true, &hi, &lo);
|
|
|
|
return 1;
|
|
}
|
|
int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
|
|
bool st = false;
|
|
return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
|
|
}
|
|
|
|
//by marshmellow
|
|
//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
|
|
//attempts to demodulate ask while decoding manchester
|
|
//prints binary found and saves in graphbuffer for further commands
|
|
int Cmdaskmandemod(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 45 || cmdp == 'h') return usage_data_rawdemod_am();
|
|
|
|
bool st = true;
|
|
if (Cmd[0] == 's')
|
|
return ASKDemod_ext(Cmd++, true, true, 1, &st);
|
|
else if (Cmd[1] == 's')
|
|
return ASKDemod_ext(Cmd += 2, true, true, 1, &st);
|
|
|
|
return ASKDemod(Cmd, true, true, 1);
|
|
}
|
|
|
|
//by marshmellow
|
|
//manchester decode
|
|
//stricktly take 10 and 01 and convert to 0 and 1
|
|
int Cmdmandecoderaw(const char *Cmd) {
|
|
size_t size = 0;
|
|
int high = 0, low = 0;
|
|
int i = 0, errCnt = 0, invert = 0, maxErr = 20;
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 5 || cmdp == 'h') return usage_data_manrawdecode();
|
|
|
|
if (DemodBufferLen == 0) return 0;
|
|
|
|
uint8_t bits[MAX_DEMOD_BUF_LEN] = {0};
|
|
|
|
for (; i < DemodBufferLen; ++i) {
|
|
if (DemodBuffer[i] > high)
|
|
high = DemodBuffer[i];
|
|
else if (DemodBuffer[i] < low)
|
|
low = DemodBuffer[i];
|
|
bits[i] = DemodBuffer[i];
|
|
}
|
|
|
|
if (high > 7 || low < 0) {
|
|
PrintAndLogEx(WARNING, "Error: please raw demod the wave first then manchester raw decode");
|
|
return 0;
|
|
}
|
|
|
|
sscanf(Cmd, "%i %i", &invert, &maxErr);
|
|
size = i;
|
|
uint8_t alignPos = 0;
|
|
errCnt = manrawdecode(bits, &size, invert, &alignPos);
|
|
if (errCnt >= maxErr) {
|
|
PrintAndLogEx(WARNING, "Too many errors: %d", errCnt);
|
|
return 0;
|
|
}
|
|
|
|
PrintAndLogEx(NORMAL, "Manchester Decoded - # errors:%d - data:", errCnt);
|
|
PrintAndLogEx(NORMAL, "%s", sprint_bin_break(bits, size, 32));
|
|
|
|
if (errCnt == 0) {
|
|
uint64_t id = 0;
|
|
uint32_t hi = 0;
|
|
size_t idx = 0;
|
|
if (Em410xDecode(bits, &size, &idx, &hi, &id) == 1) {
|
|
//need to adjust to set bitstream back to manchester encoded data
|
|
//setDemodBuff(bits, size, idx);
|
|
printEM410x(hi, id);
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* @author marshmellow
|
|
* biphase decode
|
|
* decodes 01 or 10 -> ZERO
|
|
* 11 or 00 -> ONE
|
|
* param offset adjust start position
|
|
* param invert invert output
|
|
* param masxErr maximum tolerated errors
|
|
*/
|
|
int CmdBiphaseDecodeRaw(const char *Cmd) {
|
|
size_t size = 0;
|
|
int offset = 0, invert = 0, maxErr = 20, errCnt = 0;
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 5 || cmdp == 'h') return usage_data_biphaserawdecode();
|
|
|
|
sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
|
|
if (DemodBufferLen == 0) {
|
|
PrintAndLogEx(WARNING, "DemodBuffer Empty - run " _YELLOW_("'data rawdemod ar'")" first");
|
|
return 0;
|
|
}
|
|
|
|
uint8_t bits[MAX_DEMOD_BUF_LEN] = {0};
|
|
size = sizeof(bits);
|
|
if (!getDemodBuff(bits, &size)) return 0;
|
|
|
|
errCnt = BiphaseRawDecode(bits, &size, &offset, invert);
|
|
if (errCnt < 0) {
|
|
PrintAndLogEx(WARNING, "Error during decode:%d", errCnt);
|
|
return 0;
|
|
}
|
|
if (errCnt > maxErr) {
|
|
PrintAndLogEx(WARNING, "Too many errors attempting to decode: %d", errCnt);
|
|
return 0;
|
|
}
|
|
|
|
if (errCnt > 0)
|
|
PrintAndLogEx(WARNING, "# Errors found during Demod (shown as " _YELLOW_("7")" in bit stream): %d", errCnt);
|
|
|
|
PrintAndLogEx(NORMAL, "Biphase Decoded using offset: %d - # invert:%d - data:", offset, invert);
|
|
PrintAndLogEx(NORMAL, "%s", sprint_bin_break(bits, size, 32));
|
|
|
|
//remove first bit from raw demod
|
|
if (offset)
|
|
setDemodBuff(DemodBuffer, DemodBufferLen - offset, offset);
|
|
|
|
setClockGrid(g_DemodClock, g_DemodStartIdx + g_DemodClock * offset / 2);
|
|
return 1;
|
|
}
|
|
|
|
//by marshmellow
|
|
// - ASK Demod then Biphase decode GraphBuffer samples
|
|
int ASKbiphaseDemod(const char *Cmd, bool verbose) {
|
|
//ask raw demod GraphBuffer first
|
|
int offset = 0, clk = 0, invert = 0, maxErr = 100;
|
|
sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
|
|
|
|
uint8_t BitStream[MAX_DEMOD_BUF_LEN];
|
|
size_t size = getFromGraphBuf(BitStream);
|
|
if (size == 0) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: no data in graphbuf");
|
|
return 0;
|
|
}
|
|
int startIdx = 0;
|
|
//invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
|
|
int errCnt = askdemod_ext(BitStream, &size, &clk, &invert, maxErr, 0, 0, &startIdx);
|
|
if (errCnt < 0 || errCnt > maxErr) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: no data or error found %d, clock: %d", errCnt, clk);
|
|
return 0;
|
|
}
|
|
|
|
//attempt to Biphase decode BitStream
|
|
errCnt = BiphaseRawDecode(BitStream, &size, &offset, invert);
|
|
if (errCnt < 0) {
|
|
if (g_debugMode || verbose) PrintAndLogEx(DEBUG, "DEBUG: Error BiphaseRawDecode: %d", errCnt);
|
|
return 0;
|
|
}
|
|
if (errCnt > maxErr) {
|
|
if (g_debugMode || verbose) PrintAndLogEx(DEBUG, "DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
|
|
return 0;
|
|
}
|
|
//success set DemodBuffer and return
|
|
setDemodBuff(BitStream, size, 0);
|
|
setClockGrid(clk, startIdx + clk * offset / 2);
|
|
if (g_debugMode || verbose) {
|
|
PrintAndLogEx(NORMAL, "Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:", offset, clk, errCnt);
|
|
printDemodBuff();
|
|
}
|
|
return 1;
|
|
}
|
|
//by marshmellow - see ASKbiphaseDemod
|
|
int Cmdaskbiphdemod(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 25 || cmdp == 'h') return usage_data_rawdemod_ab();
|
|
|
|
return ASKbiphaseDemod(Cmd, true);
|
|
}
|
|
|
|
//by marshmellow - see ASKDemod
|
|
int Cmdaskrawdemod(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 25 || cmdp == 'h') return usage_data_rawdemod_ar();
|
|
|
|
return ASKDemod(Cmd, true, false, 0);
|
|
}
|
|
|
|
int AutoCorrelate(const int *in, int *out, size_t len, int window, bool SaveGrph, bool verbose) {
|
|
// sanity check
|
|
if (window > len) window = len;
|
|
|
|
if (verbose) PrintAndLogEx(INFO, "performing " _YELLOW_("%d")" correlations", GraphTraceLen - window);
|
|
|
|
//test
|
|
double autocv = 0.0; // Autocovariance value
|
|
double ac_value; // Computed autocorrelation value to be returned
|
|
double variance; // Computed variance
|
|
double mean;
|
|
size_t correlation = 0;
|
|
int lastmax = 0;
|
|
|
|
// in, len, 4000
|
|
mean = compute_mean(in, len);
|
|
variance = compute_variance(in, len);
|
|
|
|
static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
|
|
|
|
for (int i = 0; i < len - window; ++i) {
|
|
|
|
for (size_t j = 0; j < (len - i); j++) {
|
|
autocv += (in[j] - mean) * (in[j + i] - mean);
|
|
}
|
|
autocv = (1.0 / (len - i)) * autocv;
|
|
|
|
CorrelBuffer[i] = autocv;
|
|
|
|
// Autocorrelation is autocovariance divided by variance
|
|
ac_value = autocv / variance;
|
|
|
|
// keep track of which distance is repeating.
|
|
if (ac_value > 1) {
|
|
correlation = i - lastmax;
|
|
lastmax = i;
|
|
}
|
|
}
|
|
|
|
//
|
|
int hi = 0, idx = 0;
|
|
int distance = 0, hi_1 = 0, idx_1 = 0;
|
|
for (int i = 0; i <= len; ++i) {
|
|
if (CorrelBuffer[i] > hi) {
|
|
hi = CorrelBuffer[i];
|
|
idx = i;
|
|
}
|
|
}
|
|
|
|
for (int i = idx + 1; i <= window; ++i) {
|
|
if (CorrelBuffer[i] > hi_1) {
|
|
hi_1 = CorrelBuffer[i];
|
|
idx_1 = i;
|
|
}
|
|
}
|
|
|
|
int foo = ABS(hi - hi_1);
|
|
int bar = (int)((int)((hi + hi_1) / 2) * 0.04);
|
|
|
|
if (verbose && foo < bar) {
|
|
distance = idx_1 - idx;
|
|
PrintAndLogEx(SUCCESS, "possible 4% visible correlation %4d samples", distance);
|
|
} else if (verbose && (correlation > 1)) {
|
|
PrintAndLogEx(SUCCESS, "possible correlation %4d samples", correlation);
|
|
} else {
|
|
PrintAndLogEx(FAILED, "no repeating pattern found, try increasing window size");
|
|
}
|
|
|
|
int retval = correlation;
|
|
if (SaveGrph) {
|
|
//GraphTraceLen = GraphTraceLen - window;
|
|
memcpy(out, CorrelBuffer, len * sizeof(int));
|
|
if (distance > 0) {
|
|
setClockGrid(distance, idx);
|
|
retval = distance;
|
|
} else
|
|
setClockGrid(correlation, idx);
|
|
|
|
CursorCPos = idx_1;
|
|
CursorDPos = idx_1 + retval;
|
|
DemodBufferLen = 0;
|
|
RepaintGraphWindow();
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
int CmdAutoCorr(const char *Cmd) {
|
|
|
|
uint32_t window = 4000;
|
|
uint8_t cmdp = 0;
|
|
bool updateGrph = false;
|
|
bool errors = false;
|
|
|
|
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
|
|
switch (tolower(param_getchar(Cmd, cmdp))) {
|
|
case 'h':
|
|
return usage_data_autocorr();
|
|
case 'g':
|
|
updateGrph = true;
|
|
cmdp++;
|
|
break;
|
|
case 'w':
|
|
window = param_get32ex(Cmd, cmdp + 1, 4000, 10);
|
|
if (window >= GraphTraceLen) {
|
|
PrintAndLogEx(WARNING, "window must be smaller than trace (%d samples)", GraphTraceLen);
|
|
errors = true;
|
|
}
|
|
cmdp += 2;
|
|
break;
|
|
default:
|
|
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
|
|
errors = true;
|
|
break;
|
|
}
|
|
}
|
|
//Validations
|
|
if (errors || cmdp == 0) return usage_data_autocorr();
|
|
|
|
return AutoCorrelate(GraphBuffer, GraphBuffer, GraphTraceLen, window, updateGrph, true);
|
|
}
|
|
|
|
int CmdBitsamples(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
int cnt = 0;
|
|
uint8_t got[12288];
|
|
|
|
if (!GetFromDevice(BIG_BUF, got, sizeof(got), 0, NULL, 2500, false)) {
|
|
PrintAndLogEx(WARNING, "command execution time out");
|
|
return false;
|
|
}
|
|
|
|
for (int j = 0; j < sizeof(got); j++) {
|
|
for (int k = 0; k < 8; k++) {
|
|
if (got[j] & (1 << (7 - k)))
|
|
GraphBuffer[cnt++] = 1;
|
|
else
|
|
GraphBuffer[cnt++] = 0;
|
|
}
|
|
}
|
|
GraphTraceLen = cnt;
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int CmdBuffClear(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (cmdp == 'h') return usage_data_buffclear();
|
|
|
|
UsbCommand c = {CMD_BUFF_CLEAR, {0, 0, 0}, {{0}}};
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
ClearGraph(true);
|
|
return 0;
|
|
}
|
|
|
|
int CmdDec(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
for (int i = 0; i < (GraphTraceLen / 2); ++i)
|
|
GraphBuffer[i] = GraphBuffer[i * 2];
|
|
GraphTraceLen /= 2;
|
|
PrintAndLogEx(NORMAL, "decimated by 2");
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
/**
|
|
* Undecimate - I'd call it 'interpolate', but we'll save that
|
|
* name until someone does an actual interpolation command, not just
|
|
* blindly repeating samples
|
|
* @param Cmd
|
|
* @return
|
|
*/
|
|
int CmdUndec(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (cmdp == 'h') return usage_data_undecimate();
|
|
|
|
uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
|
|
|
|
//We have memory, don't we?
|
|
int swap[MAX_GRAPH_TRACE_LEN] = {0};
|
|
uint32_t g_index = 0, s_index = 0;
|
|
while (g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN) {
|
|
int count = 0;
|
|
for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
|
|
swap[s_index + count] = GraphBuffer[g_index];
|
|
s_index += count;
|
|
g_index++;
|
|
}
|
|
|
|
memcpy(GraphBuffer, swap, s_index * sizeof(int));
|
|
GraphTraceLen = s_index;
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
//by marshmellow
|
|
//shift graph zero up or down based on input + or -
|
|
int CmdGraphShiftZero(const char *Cmd) {
|
|
int shift = 0, shiftedVal;
|
|
//set options from parameters entered with the command
|
|
sscanf(Cmd, "%i", &shift);
|
|
|
|
for (int i = 0; i < GraphTraceLen; i++) {
|
|
if (i + shift >= GraphTraceLen)
|
|
shiftedVal = GraphBuffer[i];
|
|
else
|
|
shiftedVal = GraphBuffer[i] + shift;
|
|
|
|
if (shiftedVal > 127)
|
|
shiftedVal = 127;
|
|
else if (shiftedVal < -127)
|
|
shiftedVal = -127;
|
|
GraphBuffer[i] = shiftedVal;
|
|
}
|
|
CmdNorm("");
|
|
return 0;
|
|
}
|
|
|
|
int AskEdgeDetect(const int *in, int *out, int len, int threshold) {
|
|
int last = 0;
|
|
for (int i = 1; i < len; i++) {
|
|
if (in[i] - in[i - 1] >= threshold) //large jump up
|
|
last = 127;
|
|
else if (in[i] - in[i - 1] <= -1 * threshold) //large jump down
|
|
last = -127;
|
|
out[i - 1] = last;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//by marshmellow
|
|
//use large jumps in read samples to identify edges of waves and then amplify that wave to max
|
|
//similar to dirtheshold, threshold commands
|
|
//takes a threshold length which is the measured length between two samples then determines an edge
|
|
int CmdAskEdgeDetect(const char *Cmd) {
|
|
int thresLen = 25;
|
|
int ans = 0;
|
|
sscanf(Cmd, "%i", &thresLen);
|
|
|
|
ans = AskEdgeDetect(GraphBuffer, GraphBuffer, GraphTraceLen, thresLen);
|
|
RepaintGraphWindow();
|
|
return ans;
|
|
}
|
|
|
|
/* Print our clock rate */
|
|
// uses data from graphbuffer
|
|
// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
|
|
int CmdDetectClockRate(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h')
|
|
return usage_data_detectclock();
|
|
|
|
int clock1 = 0;
|
|
switch (cmdp) {
|
|
case 'a' :
|
|
clock1 = GetAskClock(Cmd + 1, true);
|
|
break;
|
|
case 'f' :
|
|
clock1 = GetFskClock("", true);
|
|
break;
|
|
case 'n' :
|
|
clock1 = GetNrzClock("", true);
|
|
break;
|
|
case 'p' :
|
|
clock1 = GetPskClock("", true);
|
|
break;
|
|
default :
|
|
PrintAndLogEx(NORMAL, "Please specify a valid modulation to detect the clock of - see option h for help");
|
|
break;
|
|
}
|
|
RepaintGraphWindow();
|
|
return clock1;
|
|
}
|
|
|
|
char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert) {
|
|
static char fType[8];
|
|
memset(fType, 0x00, 8);
|
|
char *fskType = fType;
|
|
|
|
if (fchigh == 10 && fclow == 8) {
|
|
|
|
if (invert)
|
|
memcpy(fskType, "FSK2a", 5);
|
|
else
|
|
memcpy(fskType, "FSK2", 4);
|
|
|
|
} else if (fchigh == 8 && fclow == 5) {
|
|
|
|
if (invert)
|
|
memcpy(fskType, "FSK1", 4);
|
|
else
|
|
memcpy(fskType, "FSK1a", 5);
|
|
|
|
} else {
|
|
memcpy(fskType, "FSK??", 5);
|
|
}
|
|
return fskType;
|
|
}
|
|
|
|
//by marshmellow
|
|
//fsk raw demod and print binary
|
|
//takes 4 arguments - Clock, invert, fchigh, fclow
|
|
//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
|
|
int FSKrawDemod(const char *Cmd, bool verbose) {
|
|
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
|
|
uint8_t rfLen, invert, fchigh, fclow;
|
|
|
|
//set defaults
|
|
//set options from parameters entered with the command
|
|
rfLen = param_get8(Cmd, 0);
|
|
invert = param_get8(Cmd, 1);
|
|
fchigh = param_get8(Cmd, 2);
|
|
fclow = param_get8(Cmd, 3);
|
|
|
|
if (strlen(Cmd) > 0 && strlen(Cmd) <= 2) {
|
|
if (rfLen == 1) {
|
|
invert = 1; //if invert option only is used
|
|
rfLen = 0;
|
|
}
|
|
}
|
|
|
|
if (getSignalProperties()->isnoise)
|
|
return 0;
|
|
|
|
uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0};
|
|
size_t BitLen = getFromGraphBuf(bits);
|
|
if (BitLen == 0) return 0;
|
|
|
|
//get field clock lengths
|
|
if (!fchigh || !fclow) {
|
|
uint16_t fcs = countFC(bits, BitLen, true);
|
|
if (!fcs) {
|
|
fchigh = 10;
|
|
fclow = 8;
|
|
} else {
|
|
fchigh = (fcs >> 8) & 0x00FF;
|
|
fclow = fcs & 0x00FF;
|
|
}
|
|
}
|
|
//get bit clock length
|
|
if (!rfLen) {
|
|
int firstClockEdge = 0; //todo - align grid on graph with this...
|
|
rfLen = detectFSKClk(bits, BitLen, fchigh, fclow, &firstClockEdge);
|
|
if (!rfLen) rfLen = 50;
|
|
}
|
|
int startIdx = 0;
|
|
int size = fskdemod(bits, BitLen, rfLen, invert, fchigh, fclow, &startIdx);
|
|
if (size > 0) {
|
|
setDemodBuff(bits, size, 0);
|
|
setClockGrid(rfLen, startIdx);
|
|
|
|
// Now output the bitstream to the scrollback by line of 16 bits
|
|
if (verbose || g_debugMode) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: (FSKrawDemod) Using Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
|
|
PrintAndLogEx(NORMAL, "%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
|
|
printDemodBuff();
|
|
}
|
|
return 1;
|
|
} else {
|
|
PrintAndLogEx(DEBUG, "no FSK data found");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//by marshmellow
|
|
//fsk raw demod and print binary
|
|
//takes 4 arguments - Clock, invert, fchigh, fclow
|
|
//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
|
|
int CmdFSKrawdemod(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 20 || cmdp == 'h') return usage_data_rawdemod_fs();
|
|
|
|
return FSKrawDemod(Cmd, true);
|
|
}
|
|
|
|
//by marshmellow
|
|
//attempt to psk1 demod graph buffer
|
|
int PSKDemod(const char *Cmd, bool verbose) {
|
|
int invert = 0, clk = 0, maxErr = 100;
|
|
|
|
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
|
|
|
|
if (clk == 1) {
|
|
invert = 1;
|
|
clk = 0;
|
|
}
|
|
if (invert != 0 && invert != 1) {
|
|
if (g_debugMode || verbose) PrintAndLogEx(WARNING, "Invalid argument: %s", Cmd);
|
|
return 0;
|
|
}
|
|
|
|
if (getSignalProperties()->isnoise)
|
|
return 0;
|
|
|
|
uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0};
|
|
size_t bitlen = getFromGraphBuf(bits);
|
|
if (bitlen == 0)
|
|
return 0;
|
|
|
|
int startIdx = 0;
|
|
int errCnt = pskRawDemod_ext(bits, &bitlen, &clk, &invert, &startIdx);
|
|
if (errCnt > maxErr) {
|
|
if (g_debugMode || verbose) PrintAndLogEx(DEBUG, "DEBUG: (PSKdemod) Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, bitlen, errCnt);
|
|
return 0;
|
|
}
|
|
if (errCnt < 0 || bitlen < 16) { //throw away static - allow 1 and -1 (in case of threshold command first)
|
|
if (g_debugMode || verbose) PrintAndLogEx(DEBUG, "DEBUG: (PSKdemod) no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, bitlen, errCnt);
|
|
return 0;
|
|
}
|
|
if (verbose || g_debugMode) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: (PSKdemod) Using Clock:%d, invert:%d, Bits Found:%d", clk, invert, bitlen);
|
|
if (errCnt > 0) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: (PSKdemod) errors during Demoding (shown as 7 in bit stream): %d", errCnt);
|
|
}
|
|
}
|
|
//prime demod buffer for output
|
|
setDemodBuff(bits, bitlen, 0);
|
|
setClockGrid(clk, startIdx);
|
|
return 1;
|
|
}
|
|
|
|
static int CmdIdteckDemod(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
|
|
if (!PSKDemod("", false)) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck PSKDemod failed");
|
|
return 0;
|
|
}
|
|
size_t size = DemodBufferLen;
|
|
|
|
//get binary from PSK1 wave
|
|
int idx = detectIdteck(DemodBuffer, &size);
|
|
if (idx < 0) {
|
|
|
|
if (idx == -1)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: not enough samples");
|
|
else if (idx == -2)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: just noise");
|
|
else if (idx == -3)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: preamble not found");
|
|
else if (idx == -4)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: size not correct: %d", size);
|
|
else
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: idx: %d", idx);
|
|
|
|
// if didn't find preamble try again inverting
|
|
if (!PSKDemod("1", false)) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck PSKDemod failed");
|
|
return 0;
|
|
}
|
|
idx = detectIdteck(DemodBuffer, &size);
|
|
if (idx < 0) {
|
|
|
|
if (idx == -1)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: not enough samples");
|
|
else if (idx == -2)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: just noise");
|
|
else if (idx == -3)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: preamble not found");
|
|
else if (idx == -4)
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: size not correct: %d", size);
|
|
else
|
|
PrintAndLogEx(DEBUG, "DEBUG: Error - Idteck: idx: %d", idx);
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
setDemodBuff(DemodBuffer, 64, idx);
|
|
|
|
//got a good demod
|
|
uint32_t id = 0;
|
|
uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
|
|
uint32_t raw2 = bytebits_to_byte(DemodBuffer + 32, 32);
|
|
|
|
//parity check (TBD)
|
|
//checksum check (TBD)
|
|
|
|
//output
|
|
PrintAndLogEx(SUCCESS, "IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
|
|
return 1;
|
|
}
|
|
|
|
int demodIdteck(void) {
|
|
return CmdIdteckDemod("");
|
|
}
|
|
|
|
|
|
// by marshmellow
|
|
// takes 3 arguments - clock, invert, maxErr as integers
|
|
// attempts to demodulate nrz only
|
|
// prints binary found and saves in demodbuffer for further commands
|
|
int NRZrawDemod(const char *Cmd, bool verbose) {
|
|
|
|
int errCnt = 0, clkStartIdx = 0;
|
|
int invert = 0, clk = 0, maxErr = 100;
|
|
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
|
|
if (clk == 1) {
|
|
invert = 1;
|
|
clk = 0;
|
|
}
|
|
|
|
if (invert != 0 && invert != 1) {
|
|
PrintAndLogEx(WARNING, "(NRZrawDemod) Invalid argument: %s", Cmd);
|
|
return 0;
|
|
}
|
|
|
|
if (getSignalProperties()->isnoise)
|
|
return 0;
|
|
|
|
uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0};
|
|
size_t BitLen = getFromGraphBuf(bits);
|
|
|
|
if (BitLen == 0) return 0;
|
|
|
|
errCnt = nrzRawDemod(bits, &BitLen, &clk, &invert, &clkStartIdx);
|
|
if (errCnt > maxErr) {
|
|
PrintAndLogEx(DEBUG, "DEBUG: (NRZrawDemod) Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
|
|
return 0;
|
|
}
|
|
if (errCnt < 0 || BitLen < 16) { //throw away static - allow 1 and -1 (in case of threshold command first)
|
|
PrintAndLogEx(DEBUG, "DEBUG: (NRZrawDemod) no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
|
|
return 0;
|
|
}
|
|
if (verbose || g_debugMode) PrintAndLogEx(DEBUG, "DEBUG: (NRZrawDemod) Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
|
|
//prime demod buffer for output
|
|
setDemodBuff(bits, BitLen, 0);
|
|
setClockGrid(clk, clkStartIdx);
|
|
|
|
|
|
if (errCnt > 0 && (verbose || g_debugMode)) PrintAndLogEx(DEBUG, "DEBUG: (NRZrawDemod) Errors during Demoding (shown as 7 in bit stream): %d", errCnt);
|
|
if (verbose || g_debugMode) {
|
|
PrintAndLogEx(NORMAL, "NRZ demoded bitstream:");
|
|
// Now output the bitstream to the scrollback by line of 16 bits
|
|
printDemodBuff();
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int CmdNRZrawDemod(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 16 || cmdp == 'h') return usage_data_rawdemod_nr();
|
|
|
|
return NRZrawDemod(Cmd, true);
|
|
}
|
|
|
|
// by marshmellow
|
|
// takes 3 arguments - clock, invert, maxErr as integers
|
|
// attempts to demodulate psk only
|
|
// prints binary found and saves in demodbuffer for further commands
|
|
int CmdPSK1rawDemod(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 16 || cmdp == 'h') return usage_data_rawdemod_p1();
|
|
|
|
int ans = PSKDemod(Cmd, true);
|
|
//output
|
|
if (!ans) {
|
|
if (g_debugMode) PrintAndLogEx(WARNING, "Error demoding: %d", ans);
|
|
return 0;
|
|
}
|
|
PrintAndLogEx(NORMAL, "PSK1 demoded bitstream:");
|
|
// Now output the bitstream to the scrollback by line of 16 bits
|
|
printDemodBuff();
|
|
return 1;
|
|
}
|
|
|
|
// by marshmellow
|
|
// takes same args as cmdpsk1rawdemod
|
|
int CmdPSK2rawDemod(const char *Cmd) {
|
|
char cmdp = tolower(param_getchar(Cmd, 0));
|
|
if (strlen(Cmd) > 16 || cmdp == 'h') return usage_data_rawdemod_p2();
|
|
|
|
int ans = PSKDemod(Cmd, true);
|
|
if (!ans) {
|
|
if (g_debugMode) PrintAndLogEx(WARNING, "Error demoding: %d", ans);
|
|
return 0;
|
|
}
|
|
psk1TOpsk2(DemodBuffer, DemodBufferLen);
|
|
PrintAndLogEx(NORMAL, "PSK2 demoded bitstream:");
|
|
// Now output the bitstream to the scrollback by line of 16 bits
|
|
printDemodBuff();
|
|
return 1;
|
|
}
|
|
|
|
// by marshmellow - combines all raw demod functions into one menu command
|
|
int CmdRawDemod(const char *Cmd) {
|
|
int ans = 0;
|
|
|
|
if (strlen(Cmd) > 35 || strlen(Cmd) < 2)
|
|
return usage_data_rawdemod();
|
|
|
|
str_lower((char *)Cmd);
|
|
|
|
if (str_startswith(Cmd, "fs")) ans = CmdFSKrawdemod(Cmd + 2);
|
|
else if (str_startswith(Cmd, "ab")) ans = Cmdaskbiphdemod(Cmd + 2);
|
|
else if (str_startswith(Cmd, "am")) ans = Cmdaskmandemod(Cmd + 2);
|
|
else if (str_startswith(Cmd, "ar")) ans = Cmdaskrawdemod(Cmd + 2);
|
|
else if (str_startswith(Cmd, "nr")) ans = CmdNRZrawDemod(Cmd + 2);
|
|
else if (str_startswith(Cmd, "p1")) ans = CmdPSK1rawDemod(Cmd + 2);
|
|
else if (str_startswith(Cmd, "p2")) ans = CmdPSK2rawDemod(Cmd + 2);
|
|
else PrintAndLogEx(WARNING, "Unknown modulation entered - see help ('h') for parameter structure");
|
|
|
|
return ans;
|
|
}
|
|
|
|
void setClockGrid(int clk, int offset) {
|
|
g_DemodStartIdx = offset;
|
|
g_DemodClock = clk;
|
|
if (clk == 0 && offset == 0)
|
|
PrintAndLogEx(DEBUG, "DEBUG: (setClockGrid) clear settings");
|
|
else
|
|
PrintAndLogEx(DEBUG, "DEBUG: (setClockGrid) demodoffset %d, clk %d", offset, clk);
|
|
|
|
if (offset > clk) offset %= clk;
|
|
if (offset < 0) offset += clk;
|
|
|
|
if (offset > GraphTraceLen || offset < 0) return;
|
|
if (clk < 8 || clk > GraphTraceLen) {
|
|
GridLocked = false;
|
|
GridOffset = 0;
|
|
PlotGridX = 0;
|
|
PlotGridXdefault = 0;
|
|
RepaintGraphWindow();
|
|
} else {
|
|
GridLocked = true;
|
|
GridOffset = offset;
|
|
PlotGridX = clk;
|
|
PlotGridXdefault = clk;
|
|
RepaintGraphWindow();
|
|
}
|
|
}
|
|
|
|
int CmdGrid(const char *Cmd) {
|
|
sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
|
|
PlotGridXdefault = PlotGridX;
|
|
PlotGridYdefault = PlotGridY;
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int CmdSetGraphMarkers(const char *Cmd) {
|
|
sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos);
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int CmdHexsamples(const char *Cmd) {
|
|
int i, j, requested = 0, offset = 0;
|
|
char string_buf[25];
|
|
char *string_ptr = string_buf;
|
|
uint8_t got[BIGBUF_SIZE];
|
|
|
|
sscanf(Cmd, "%i %i", &requested, &offset);
|
|
|
|
/* if no args send something */
|
|
if (requested == 0)
|
|
requested = 8;
|
|
|
|
if (offset + requested > sizeof(got)) {
|
|
PrintAndLogEx(NORMAL, "Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
|
|
return 0;
|
|
}
|
|
|
|
if (!GetFromDevice(BIG_BUF, got, requested, offset, NULL, 2500, false)) {
|
|
PrintAndLogEx(WARNING, "command execution time out");
|
|
return false;
|
|
}
|
|
|
|
i = 0;
|
|
for (j = 0; j < requested; j++) {
|
|
i++;
|
|
string_ptr += sprintf(string_ptr, "%02x ", got[j]);
|
|
if (i == 8) {
|
|
*(string_ptr - 1) = '\0'; // remove the trailing space
|
|
PrintAndLogEx(NORMAL, "%s", string_buf);
|
|
string_buf[0] = '\0';
|
|
string_ptr = string_buf;
|
|
i = 0;
|
|
}
|
|
if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
|
|
*(string_ptr - 1) = '\0';
|
|
PrintAndLogEx(NORMAL, "%s", string_buf);
|
|
string_buf[0] = '\0';
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int CmdHide(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
HideGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
//zero mean GraphBuffer
|
|
int CmdHpf(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
uint8_t bits[GraphTraceLen];
|
|
size_t size = getFromGraphBuf(bits);
|
|
removeSignalOffset(bits, size);
|
|
// push it back to graph
|
|
setGraphBuf(bits, size);
|
|
// set signal properties low/high/mean/amplitude and is_noise detection
|
|
computeSignalProperties(bits, size);
|
|
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
bool _headBit(BitstreamOut *stream) {
|
|
int bytepos = stream->position >> 3; // divide by 8
|
|
int bitpos = (stream->position++) & 7; // mask out 00000111
|
|
return (*(stream->buffer + bytepos) >> (7 - bitpos)) & 1;
|
|
}
|
|
|
|
uint8_t getByte(uint8_t bits_per_sample, BitstreamOut *b) {
|
|
uint8_t val = 0;
|
|
for (int i = 0 ; i < bits_per_sample; i++)
|
|
val |= (_headBit(b) << (7 - i));
|
|
|
|
return val;
|
|
}
|
|
|
|
int getSamples(int n, bool silent) {
|
|
//If we get all but the last byte in bigbuf,
|
|
// we don't have to worry about remaining trash
|
|
// in the last byte in case the bits-per-sample
|
|
// does not line up on byte boundaries
|
|
uint8_t got[BIGBUF_SIZE - 1] = { 0 };
|
|
|
|
if (n == 0 || n > sizeof(got))
|
|
n = sizeof(got);
|
|
|
|
if (!silent) PrintAndLogEx(NORMAL, "Reading %d bytes from device memory\n", n);
|
|
|
|
UsbCommand response;
|
|
if (!GetFromDevice(BIG_BUF, got, n, 0, &response, 10000, true)) {
|
|
PrintAndLogEx(WARNING, "timeout while waiting for reply.");
|
|
return 1;
|
|
}
|
|
|
|
if (!silent) PrintAndLogEx(NORMAL, "Data fetched");
|
|
|
|
uint8_t bits_per_sample = 8;
|
|
|
|
//Old devices without this feature would send 0 at arg[0]
|
|
if (response.arg[0] > 0) {
|
|
sample_config *sc = (sample_config *) response.d.asBytes;
|
|
if (!silent) PrintAndLogEx(NORMAL, "Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
|
|
bits_per_sample = sc->bits_per_sample;
|
|
}
|
|
|
|
if (bits_per_sample < 8) {
|
|
|
|
if (!silent) PrintAndLogEx(NORMAL, "Unpacking...");
|
|
|
|
BitstreamOut bout = { got, bits_per_sample * n, 0};
|
|
int j = 0;
|
|
for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
|
|
uint8_t sample = getByte(bits_per_sample, &bout);
|
|
GraphBuffer[j] = ((int) sample) - 128;
|
|
}
|
|
GraphTraceLen = j;
|
|
|
|
if (!silent) PrintAndLogEx(NORMAL, "Unpacked %d samples", j);
|
|
|
|
} else {
|
|
for (int j = 0; j < n; j++) {
|
|
GraphBuffer[j] = ((int)got[j]) - 128;
|
|
}
|
|
GraphTraceLen = n;
|
|
}
|
|
|
|
uint8_t bits[GraphTraceLen];
|
|
size_t size = getFromGraphBuf(bits);
|
|
// set signal properties low/high/mean/amplitude and is_noise detection
|
|
computeSignalProperties(bits, size);
|
|
|
|
setClockGrid(0, 0);
|
|
DemodBufferLen = 0;
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int CmdSamples(const char *Cmd) {
|
|
int n = strtol(Cmd, NULL, 0);
|
|
return getSamples(n, false);
|
|
}
|
|
|
|
int CmdTuneSamples(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
#define NON_VOLTAGE 1000
|
|
#define LF_UNUSABLE_V 2000
|
|
#define LF_MARGINAL_V 10000
|
|
#define HF_UNUSABLE_V 3000
|
|
#define HF_MARGINAL_V 5000
|
|
#define ANTENNA_ERROR 1.03 // current algo has 3% error margin.
|
|
|
|
// hide demod plot line
|
|
DemodBufferLen = 0;
|
|
setClockGrid(0, 0);
|
|
RepaintGraphWindow();
|
|
|
|
|
|
int timeout = 0;
|
|
PrintAndLogEx(INFO, "\nmeasuring antenna characteristics, please wait...");
|
|
|
|
UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0, 0, 0}, {{0}}};
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
UsbCommand resp;
|
|
while (!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
|
|
timeout++;
|
|
printf(".");
|
|
fflush(stdout);
|
|
if (timeout > 7) {
|
|
PrintAndLogEx(WARNING, "\nno response from Proxmark. Aborting...");
|
|
return 1;
|
|
}
|
|
}
|
|
PrintAndLogEx(NORMAL, "\n");
|
|
|
|
uint32_t v_lf125 = resp.arg[0];
|
|
uint32_t v_lf134 = resp.arg[0] >> 32;
|
|
|
|
uint32_t v_hf = resp.arg[1];
|
|
uint32_t peakf = resp.arg[2];
|
|
uint32_t peakv = resp.arg[2] >> 32;
|
|
|
|
if (v_lf125 > NON_VOLTAGE)
|
|
PrintAndLogEx(SUCCESS, "LF antenna: %5.2f V - 125.00 kHz", (v_lf125 * ANTENNA_ERROR) / 1000.0);
|
|
if (v_lf134 > NON_VOLTAGE)
|
|
PrintAndLogEx(SUCCESS, "LF antenna: %5.2f V - 134.00 kHz", (v_lf134 * ANTENNA_ERROR) / 1000.0);
|
|
if (peakv > NON_VOLTAGE && peakf > 0)
|
|
PrintAndLogEx(SUCCESS, "LF optimal: %5.2f V - %6.2f kHz", (peakv * ANTENNA_ERROR) / 1000.0, 12000.0 / (peakf + 1));
|
|
|
|
char judgement[20];
|
|
memset(judgement, 0, sizeof(judgement));
|
|
// LF evaluation
|
|
if (peakv < LF_UNUSABLE_V)
|
|
sprintf(judgement, _RED_("UNUSABLE"));
|
|
else if (peakv < LF_MARGINAL_V)
|
|
sprintf(judgement, _YELLOW_("MARGINAL"));
|
|
else
|
|
sprintf(judgement, _GREEN_("OK"));
|
|
|
|
PrintAndLogEx(NORMAL, "%sLF antenna is %s \n"
|
|
, (peakv < LF_UNUSABLE_V) ? _CYAN_("[!]") : _GREEN_("[+]")
|
|
, judgement
|
|
);
|
|
|
|
// HF evaluation
|
|
if (v_hf > NON_VOLTAGE)
|
|
PrintAndLogEx(SUCCESS, "HF antenna: %5.2f V - 13.56 MHz", (v_hf * ANTENNA_ERROR) / 1000.0);
|
|
|
|
memset(judgement, 0, sizeof(judgement));
|
|
|
|
if (v_hf < HF_UNUSABLE_V)
|
|
sprintf(judgement, _RED_("UNUSABLE"));
|
|
else if (v_hf < HF_MARGINAL_V)
|
|
sprintf(judgement, _YELLOW_("MARGINAL"));
|
|
else
|
|
sprintf(judgement, _GREEN_("OK"));
|
|
|
|
PrintAndLogEx(NORMAL, "%sHF antenna is %s"
|
|
, (v_hf < HF_UNUSABLE_V) ? _CYAN_("[!]") : _GREEN_("[+]")
|
|
, judgement
|
|
);
|
|
|
|
// graph LF measurements
|
|
// even here, these values has 3% error.
|
|
uint16_t test1 = 0;
|
|
for (int i = 0; i < 256; i++) {
|
|
GraphBuffer[i] = resp.d.asBytes[i] - 128;
|
|
test1 += resp.d.asBytes[i];
|
|
}
|
|
|
|
if (test1 > 0) {
|
|
PrintAndLogEx(SUCCESS, "\nDisplaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n\n");
|
|
GraphTraceLen = 256;
|
|
ShowGraphWindow();
|
|
RepaintGraphWindow();
|
|
} else {
|
|
|
|
PrintAndLogEx(FAILED, "\nNot showing LF tuning graph since all values is zero.\n\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int CmdLoad(const char *Cmd) {
|
|
char filename[FILE_PATH_SIZE] = {0x00};
|
|
int len = 0;
|
|
|
|
len = strlen(Cmd);
|
|
if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
|
|
memcpy(filename, Cmd, len);
|
|
|
|
FILE *f = fopen(filename, "r");
|
|
if (!f) {
|
|
PrintAndLogEx(WARNING, "couldn't open '%s'", filename);
|
|
return 0;
|
|
}
|
|
|
|
GraphTraceLen = 0;
|
|
char line[80];
|
|
while (fgets(line, sizeof(line), f)) {
|
|
GraphBuffer[GraphTraceLen] = atoi(line);
|
|
GraphTraceLen++;
|
|
|
|
if (GraphTraceLen >= MAX_GRAPH_TRACE_LEN)
|
|
break;
|
|
}
|
|
|
|
fclose(f);
|
|
|
|
PrintAndLogEx(SUCCESS, "loaded %d samples", GraphTraceLen);
|
|
|
|
uint8_t bits[GraphTraceLen];
|
|
size_t size = getFromGraphBuf(bits);
|
|
|
|
removeSignalOffset(bits, size);
|
|
setGraphBuf(bits, size);
|
|
computeSignalProperties(bits, size);
|
|
|
|
setClockGrid(0, 0);
|
|
DemodBufferLen = 0;
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
// trim graph from the end
|
|
int CmdLtrim(const char *Cmd) {
|
|
// sanitycheck
|
|
if (GraphTraceLen <= 0) return 1;
|
|
|
|
int ds = atoi(Cmd);
|
|
for (int i = ds; i < GraphTraceLen; ++i)
|
|
GraphBuffer[i - ds] = GraphBuffer[i];
|
|
|
|
GraphTraceLen -= ds;
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
// trim graph from the beginning
|
|
int CmdRtrim(const char *Cmd) {
|
|
|
|
int ds = atoi(Cmd);
|
|
|
|
// sanitycheck
|
|
if (GraphTraceLen <= ds) return 1;
|
|
|
|
GraphTraceLen = ds;
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
// trim graph (middle) piece
|
|
int CmdMtrim(const char *Cmd) {
|
|
int start = 0, stop = 0;
|
|
sscanf(Cmd, "%i %i", &start, &stop);
|
|
|
|
if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 1;
|
|
|
|
// leave start position sample
|
|
start++;
|
|
|
|
GraphTraceLen = stop - start;
|
|
for (int i = 0; i < GraphTraceLen; i++)
|
|
GraphBuffer[i] = GraphBuffer[start + i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
int CmdNorm(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
int i;
|
|
int max = INT_MIN, min = INT_MAX;
|
|
|
|
// Find local min, max
|
|
for (i = 10; i < GraphTraceLen; ++i) {
|
|
if (GraphBuffer[i] > max) max = GraphBuffer[i];
|
|
if (GraphBuffer[i] < min) min = GraphBuffer[i];
|
|
}
|
|
|
|
if (max != min) {
|
|
for (i = 0; i < GraphTraceLen; ++i) {
|
|
GraphBuffer[i] = ((long)(GraphBuffer[i] - ((max + min) / 2)) * 256) / (max - min);
|
|
//marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
|
|
}
|
|
}
|
|
|
|
uint8_t bits[GraphTraceLen];
|
|
size_t size = getFromGraphBuf(bits);
|
|
// set signal properties low/high/mean/amplitude and is_noise detection
|
|
computeSignalProperties(bits, size);
|
|
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int CmdPlot(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
ShowGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int CmdSave(const char *Cmd) {
|
|
|
|
int len = 0;
|
|
char filename[FILE_PATH_SIZE] = {0x00};
|
|
|
|
len = strlen(Cmd);
|
|
if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
|
|
memcpy(filename, Cmd, len);
|
|
|
|
FILE *f = fopen(filename, "w");
|
|
if (!f) {
|
|
PrintAndLogEx(WARNING, "couldn't open '%s'", filename);
|
|
return 0;
|
|
}
|
|
|
|
for (int i = 0; i < GraphTraceLen; i++)
|
|
fprintf(f, "%d\n", GraphBuffer[i]);
|
|
|
|
if (f)
|
|
fclose(f);
|
|
|
|
PrintAndLogEx(SUCCESS, "saved to '%s'", Cmd);
|
|
return 0;
|
|
}
|
|
|
|
int CmdScale(const char *Cmd) {
|
|
CursorScaleFactor = atoi(Cmd);
|
|
if (CursorScaleFactor == 0) {
|
|
PrintAndLogEx(FAILED, "bad, can't have zero scale");
|
|
CursorScaleFactor = 1;
|
|
}
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int directionalThreshold(const int *in, int *out, size_t len, int8_t up, int8_t down) {
|
|
|
|
int lastValue = in[0];
|
|
|
|
// Will be changed at the end, but init 0 as we adjust to last samples
|
|
// value if no threshold kicks in.
|
|
out[0] = 0;
|
|
|
|
for (size_t i = 1; i < len; ++i) {
|
|
// Apply first threshold to samples heading up
|
|
if (in[i] >= up && in[i] > lastValue) {
|
|
lastValue = out[i]; // Buffer last value as we overwrite it.
|
|
out[i] = 1;
|
|
}
|
|
// Apply second threshold to samples heading down
|
|
else if (in[i] <= down && in[i] < lastValue) {
|
|
lastValue = out[i]; // Buffer last value as we overwrite it.
|
|
out[i] = -1;
|
|
} else {
|
|
lastValue = out[i]; // Buffer last value as we overwrite it.
|
|
out[i] = out[i - 1];
|
|
}
|
|
}
|
|
|
|
// Align with first edited sample.
|
|
out[0] = out[1];
|
|
return 0;
|
|
}
|
|
|
|
int CmdDirectionalThreshold(const char *Cmd) {
|
|
int8_t up = param_get8(Cmd, 0);
|
|
int8_t down = param_get8(Cmd, 1);
|
|
|
|
PrintAndLogEx(INFO, "Applying Up Threshold: %d, Down Threshold: %d\n", up, down);
|
|
|
|
directionalThreshold(GraphBuffer, GraphBuffer, GraphTraceLen, up, down);
|
|
|
|
// set signal properties low/high/mean/amplitude and isnoice detection
|
|
uint8_t bits[GraphTraceLen];
|
|
size_t size = getFromGraphBuf(bits);
|
|
// set signal properties low/high/mean/amplitude and is_noice detection
|
|
computeSignalProperties(bits, size);
|
|
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
int CmdZerocrossings(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
// Zero-crossings aren't meaningful unless the signal is zero-mean.
|
|
CmdHpf("");
|
|
|
|
int sign = 1, zc = 0, lastZc = 0;
|
|
|
|
for (int i = 0; i < GraphTraceLen; ++i) {
|
|
if (GraphBuffer[i] * sign >= 0) {
|
|
// No change in sign, reproduce the previous sample count.
|
|
zc++;
|
|
GraphBuffer[i] = lastZc;
|
|
} else {
|
|
// Change in sign, reset the sample count.
|
|
sign = -sign;
|
|
GraphBuffer[i] = lastZc;
|
|
if (sign > 0) {
|
|
lastZc = zc;
|
|
zc = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
uint8_t bits[GraphTraceLen];
|
|
size_t size = getFromGraphBuf(bits);
|
|
// set signal properties low/high/mean/amplitude and is_noise detection
|
|
computeSignalProperties(bits, size);
|
|
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Utility for conversion via cmdline.
|
|
* @param Cmd
|
|
* @return
|
|
*/
|
|
int Cmdbin2hex(const char *Cmd) {
|
|
int bg = 0, en = 0;
|
|
if (param_getptr(Cmd, &bg, &en, 0))
|
|
return usage_data_bin2hex();
|
|
|
|
//Number of digits supplied as argument
|
|
size_t length = en - bg + 1;
|
|
size_t bytelen = (length + 7) / 8;
|
|
uint8_t *arr = (uint8_t *) calloc(bytelen, sizeof(uint8_t));
|
|
memset(arr, 0, bytelen);
|
|
BitstreamOut bout = { arr, 0, 0 };
|
|
|
|
for (; bg <= en; bg++) {
|
|
char c = Cmd[bg];
|
|
if (c == '1')
|
|
pushBit(&bout, 1);
|
|
else if (c == '0')
|
|
pushBit(&bout, 0);
|
|
else
|
|
PrintAndLogEx(NORMAL, "Ignoring '%c'", c);
|
|
}
|
|
|
|
if (bout.numbits % 8 != 0)
|
|
PrintAndLogEx(NORMAL, "[padded with %d zeroes]", 8 - (bout.numbits % 8));
|
|
|
|
PrintAndLogEx(NORMAL, "%s", sprint_hex(arr, bytelen));
|
|
free(arr);
|
|
return 0;
|
|
}
|
|
|
|
int Cmdhex2bin(const char *Cmd) {
|
|
int bg = 0, en = 0;
|
|
if (param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
|
|
|
|
while (bg <= en) {
|
|
char x = Cmd[bg++];
|
|
// capitalize
|
|
if (x >= 'a' && x <= 'f')
|
|
x -= 32;
|
|
// convert to numeric value
|
|
if (x >= '0' && x <= '9')
|
|
x -= '0';
|
|
else if (x >= 'A' && x <= 'F')
|
|
x -= 'A' - 10;
|
|
else
|
|
continue;
|
|
|
|
//Uses printf instead of PrintAndLog since the latter adds linebreaks to each printout
|
|
for (int i = 0 ; i < 4 ; ++i)
|
|
printf("%d", (x >> (3 - i)) & 1);
|
|
}
|
|
PrintAndLogEx(NORMAL, "\n");
|
|
return 0;
|
|
}
|
|
|
|
/* // example of FSK2 RF/50 Tones
|
|
static const int LowTone[] = {
|
|
1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, 1, -1, -1, -1, -1, -1
|
|
};
|
|
static const int HighTone[] = {
|
|
1, 1, 1, 1, 1, -1, -1, -1, -1, // note one extra 1 to padd due to 50/8 remainder (1/2 the remainder)
|
|
1, 1, 1, 1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, -1, -1, -1, -1,
|
|
1, 1, 1, 1, -1, -1, -1, -1, -1, // note one extra -1 to padd due to 50/8 remainder
|
|
};
|
|
*/
|
|
void GetHiLoTone(int *LowTone, int *HighTone, int clk, int LowToneFC, int HighToneFC) {
|
|
int i, j = 0;
|
|
int Left_Modifier = ((clk % LowToneFC) % 2) + ((clk % LowToneFC) / 2);
|
|
int Right_Modifier = (clk % LowToneFC) / 2;
|
|
//int HighToneMod = clk mod HighToneFC;
|
|
int LeftHalfFCCnt = (LowToneFC % 2) + (LowToneFC / 2); //truncate
|
|
int FCs_per_clk = clk / LowToneFC;
|
|
|
|
// need to correctly split up the clock to field clocks.
|
|
// First attempt uses modifiers on each end to make up for when FCs don't evenly divide into Clk
|
|
|
|
// start with LowTone
|
|
// set extra 1 modifiers to make up for when FC doesn't divide evenly into Clk
|
|
for (i = 0; i < Left_Modifier; i++) {
|
|
LowTone[i] = 1;
|
|
}
|
|
|
|
// loop # of field clocks inside the main clock
|
|
for (i = 0; i < (FCs_per_clk); i++) {
|
|
// loop # of samples per field clock
|
|
for (j = 0; j < LowToneFC; j++) {
|
|
LowTone[(i * LowToneFC) + Left_Modifier + j] = (j < LeftHalfFCCnt) ? 1 : -1;
|
|
}
|
|
}
|
|
|
|
int k;
|
|
// add last -1 modifiers
|
|
for (k = 0; k < Right_Modifier; k++) {
|
|
LowTone[((i - 1) * LowToneFC) + Left_Modifier + j + k] = -1;
|
|
}
|
|
|
|
// now do hightone
|
|
Left_Modifier = ((clk % HighToneFC) % 2) + ((clk % HighToneFC) / 2);
|
|
Right_Modifier = (clk % HighToneFC) / 2;
|
|
LeftHalfFCCnt = (HighToneFC % 2) + (HighToneFC / 2); //truncate
|
|
FCs_per_clk = clk / HighToneFC;
|
|
|
|
for (i = 0; i < Left_Modifier; i++) {
|
|
HighTone[i] = 1;
|
|
}
|
|
|
|
// loop # of field clocks inside the main clock
|
|
for (i = 0; i < (FCs_per_clk); i++) {
|
|
// loop # of samples per field clock
|
|
for (j = 0; j < HighToneFC; j++) {
|
|
HighTone[(i * HighToneFC) + Left_Modifier + j] = (j < LeftHalfFCCnt) ? 1 : -1;
|
|
}
|
|
}
|
|
|
|
// add last -1 modifiers
|
|
for (k = 0; k < Right_Modifier; k++) {
|
|
PrintAndLogEx(NORMAL, "(i-1)*HighToneFC+lm+j+k %i", ((i - 1) * HighToneFC) + Left_Modifier + j + k);
|
|
HighTone[((i - 1) * HighToneFC) + Left_Modifier + j + k] = -1;
|
|
}
|
|
if (g_debugMode == 2) {
|
|
for (i = 0; i < clk; i++) {
|
|
PrintAndLogEx(NORMAL, "Low: %i, High: %i", LowTone[i], HighTone[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
//old CmdFSKdemod adapted by marshmellow
|
|
//converts FSK to clear NRZ style wave. (or demodulates)
|
|
int FSKToNRZ(int *data, int *dataLen, int clk, int LowToneFC, int HighToneFC) {
|
|
uint8_t ans = 0;
|
|
if (clk == 0 || LowToneFC == 0 || HighToneFC == 0) {
|
|
int firstClockEdge = 0;
|
|
ans = fskClocks((uint8_t *) &LowToneFC, (uint8_t *) &HighToneFC, (uint8_t *) &clk, &firstClockEdge);
|
|
if (g_debugMode > 1) {
|
|
PrintAndLogEx(NORMAL, "DEBUG FSKtoNRZ: detected clocks: fc_low %i, fc_high %i, clk %i, firstClockEdge %i, ans %u", LowToneFC, HighToneFC, clk, firstClockEdge, ans);
|
|
}
|
|
}
|
|
// currently only know fsk modulations with field clocks < 10 samples and > 4 samples. filter out to remove false positives (and possibly destroying ask/psk modulated waves...)
|
|
if (ans == 0 || clk == 0 || LowToneFC == 0 || HighToneFC == 0 || LowToneFC > 10 || HighToneFC < 4) {
|
|
if (g_debugMode > 1) {
|
|
PrintAndLogEx(NORMAL, "DEBUG FSKtoNRZ: no fsk clocks found");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int i, j;
|
|
int LowTone[clk];
|
|
int HighTone[clk];
|
|
GetHiLoTone(LowTone, HighTone, clk, LowToneFC, HighToneFC);
|
|
|
|
// loop through ([all samples] - clk)
|
|
for (i = 0; i < *dataLen - clk; ++i) {
|
|
int lowSum = 0, highSum = 0;
|
|
|
|
// sum all samples together starting from this sample for [clk] samples for each tone (multiply tone value with sample data)
|
|
for (j = 0; j < clk; ++j) {
|
|
lowSum += LowTone[j] * data[i + j];
|
|
highSum += HighTone[j] * data[i + j];
|
|
}
|
|
// get abs( [average sample value per clk] * 100 ) (or a rolling average of sorts)
|
|
lowSum = abs(100 * lowSum / clk);
|
|
highSum = abs(100 * highSum / clk);
|
|
// save these back to buffer for later use
|
|
data[i] = (highSum << 16) | lowSum;
|
|
}
|
|
|
|
// now we have the abs( [average sample value per clk] * 100 ) for each tone
|
|
// loop through again [all samples] - clk - 16
|
|
// note why 16??? is 16 the largest FC? changed to LowToneFC as that should be the > fc
|
|
for (i = 0; i < *dataLen - clk - LowToneFC; ++i) {
|
|
int lowTot = 0, highTot = 0;
|
|
|
|
// sum a field clock width of abs( [average sample values per clk] * 100) for each tone
|
|
for (j = 0; j < LowToneFC; ++j) { //10 for fsk2
|
|
lowTot += (data[i + j] & 0xffff);
|
|
}
|
|
for (j = 0; j < HighToneFC; j++) { //8 for fsk2
|
|
highTot += (data[i + j] >> 16);
|
|
}
|
|
|
|
// subtract the sum of lowTone averages by the sum of highTone averages as it
|
|
// and write back the new graph value
|
|
data[i] = lowTot - highTot;
|
|
}
|
|
// update dataLen to what we put back to the data sample buffer
|
|
*dataLen -= (clk + LowToneFC);
|
|
return 0;
|
|
}
|
|
|
|
int CmdFSKToNRZ(const char *Cmd) {
|
|
// take clk, fc_low, fc_high
|
|
// blank = auto;
|
|
bool errors = false;
|
|
char cmdp = 0;
|
|
int clk = 0, fc_low = 10, fc_high = 8;
|
|
while (param_getchar(Cmd, cmdp) != 0x00) {
|
|
switch (tolower(param_getchar(Cmd, cmdp))) {
|
|
case 'h':
|
|
return usage_data_fsktonrz();
|
|
case 'c':
|
|
clk = param_get32ex(Cmd, cmdp + 1, 0, 10);
|
|
cmdp += 2;
|
|
break;
|
|
case 'f':
|
|
fc_high = param_get32ex(Cmd, cmdp + 1, 0, 10);
|
|
cmdp += 2;
|
|
break;
|
|
case 'l':
|
|
fc_low = param_get32ex(Cmd, cmdp + 1, 0, 10);
|
|
cmdp += 2;
|
|
break;
|
|
default:
|
|
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
|
|
errors = true;
|
|
break;
|
|
}
|
|
if (errors) break;
|
|
}
|
|
//Validations
|
|
if (errors) return usage_data_fsktonrz();
|
|
|
|
setClockGrid(0, 0);
|
|
DemodBufferLen = 0;
|
|
int ans = FSKToNRZ(GraphBuffer, &GraphTraceLen, clk, fc_low, fc_high);
|
|
CmdNorm("");
|
|
RepaintGraphWindow();
|
|
return ans;
|
|
}
|
|
|
|
int CmdDataIIR(const char *Cmd) {
|
|
uint8_t k = param_get8(Cmd, 0);
|
|
//iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
|
|
iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
|
|
|
|
uint8_t bits[GraphTraceLen];
|
|
size_t size = getFromGraphBuf(bits);
|
|
// set signal properties low/high/mean/amplitude and is_noise detection
|
|
computeSignalProperties(bits, size);
|
|
RepaintGraphWindow();
|
|
return 0;
|
|
}
|
|
|
|
static command_t CommandTable[] = {
|
|
{"help", CmdHelp, 1, "This help"},
|
|
{"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)"},
|
|
{"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
|
|
{"biphaserawdecode", CmdBiphaseDecodeRaw, 1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
|
|
{"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
|
|
{"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
|
|
{"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside and graph window"},
|
|
{"dec", CmdDec, 1, "Decimate samples"},
|
|
{"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
|
|
{"fsktonrz", CmdFSKToNRZ, 1, "Convert fsk2 to nrz wave for alternate fsk demodulating (for weak fsk)"},
|
|
|
|
{"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
|
|
{"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
|
|
{"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
|
|
{"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
|
|
{"hide", CmdHide, 1, "Hide graph window"},
|
|
{"hpf", CmdHpf, 1, "Remove DC offset from trace"},
|
|
{"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
|
|
{"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
|
|
{"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
|
|
{"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"},
|
|
{"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
|
|
{"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
|
|
{"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
|
|
{"printdemodbuffer", CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
|
|
{"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
|
|
{"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
|
|
{"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
|
|
{"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"},
|
|
{"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
|
|
{"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
|
|
{"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
|
|
{"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
|
|
{"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
|
|
{"undec", CmdUndec, 1, "Un-decimate samples by 2"},
|
|
{"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
|
|
{"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
|
|
{NULL, NULL, 0, NULL}
|
|
};
|
|
|
|
int CmdData(const char *Cmd) {
|
|
clearCommandBuffer();
|
|
CmdsParse(CommandTable, Cmd);
|
|
return 0;
|
|
}
|
|
|
|
int CmdHelp(const char *Cmd) {
|
|
(void)Cmd; // Cmd is not used so far
|
|
CmdsHelp(CommandTable);
|
|
return 0;
|
|
}
|