]> git.zerfleddert.de Git - proxmark3-svn/blob - client/ui.c
FIX: had to make it clientside only
[proxmark3-svn] / client / ui.c
1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2009 Michael Gernoth <michael at gernoth.net>
3 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
4 //
5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
6 // at your option, any later version. See the LICENSE.txt file for the text of
7 // the license.
8 //-----------------------------------------------------------------------------
9 // UI utilities
10 //-----------------------------------------------------------------------------
11
12 #include "ui.h"
13
14 // set QT vars
15 double CursorScaleFactor;
16 int PlotGridX, PlotGridY, PlotGridXdefault = 64, PlotGridYdefault = 64, CursorCPos = 0, CursorDPos = 0;
17 int PlotClock = 0, PlockClockStartIndex = 0;
18
19 int offline;
20 int flushAfterWrite = 0;
21 extern pthread_mutex_t print_lock;
22
23 static char *logfilename = "proxmark3.log";
24
25 void PrintAndLog(char *fmt, ...)
26 {
27 char *saved_line;
28 int saved_point;
29 va_list argptr, argptr2;
30 static FILE *logfile = NULL;
31 static int logging = 1;
32 // time_t current_time;
33 // struct tm* tm_info;
34 // char buffer[26] = {0};
35
36 // lock this section to avoid interlacing prints from different threats
37 pthread_mutex_lock(&print_lock);
38
39 if (logging && !logfile) {
40 logfile = fopen(logfilename, "a");
41 if (!logfile) {
42 fprintf(stderr, "Can't open logfile, logging disabled!\n");
43 logging=0;
44 }
45 }
46
47 int need_hack = (rl_readline_state & RL_STATE_READCMD) > 0;
48
49 if (need_hack) {
50 saved_point = rl_point;
51 saved_line = rl_copy_text(0, rl_end);
52 rl_save_prompt();
53 rl_replace_line("", 0);
54 rl_redisplay();
55 }
56
57 va_start(argptr, fmt);
58 va_copy(argptr2, argptr);
59 vprintf(fmt, argptr);
60 printf(" "); // cleaning prompt
61 va_end(argptr);
62 printf("\n");
63
64 if (need_hack) {
65 rl_restore_prompt();
66 rl_replace_line(saved_line, 0);
67 rl_point = saved_point;
68 rl_redisplay();
69 free(saved_line);
70 }
71
72 if (logging && logfile) {
73
74 /*
75 // Obtain current time.
76 current_time = time(NULL);
77 // Convert to local time format.
78 tm_info = localtime(&current_time);
79 strftime(buffer, 26, "%Y-%m-%d %H:%M:%S", tm_info);
80 fprintf(logfile, "%s ", buffer);
81 */
82
83 vfprintf(logfile, fmt, argptr2);
84 fprintf(logfile,"\n");
85 fflush(logfile);
86 }
87 va_end(argptr2);
88
89 if (flushAfterWrite == 1) {
90 fflush(NULL);
91 }
92 //release lock
93 pthread_mutex_unlock(&print_lock);
94 }
95
96 void SetLogFilename(char *fn) {
97 logfilename = fn;
98 }
99
100 void iceIIR_Butterworth(int *data, const size_t len){
101
102 int i,j;
103
104 int * output = (int* ) malloc(sizeof(int) * len);
105 if ( !output ) return;
106
107 // clear mem
108 memset(output, 0x00, len);
109
110 size_t adjustedLen = len;
111 float fc = 0.1125f; // center frequency
112
113 // create very simple low-pass filter to remove images (2nd-order Butterworth)
114 float complex iir_buf[3] = {0,0,0};
115 float b[3] = {0.003621681514929, 0.007243363029857, 0.003621681514929};
116 float a[3] = {1.000000000000000, -1.822694925196308, 0.837181651256023};
117
118 float sample = 0; // input sample read from array
119 float complex x_prime = 1.0f; // save sample for estimating frequency
120 float complex x;
121
122 for (i = 0; i < adjustedLen; ++i) {
123
124 sample = data[i];
125
126 // remove DC offset and mix to complex baseband
127 x = (sample - 127.5f) * cexpf( _Complex_I * 2 * M_PI * fc * i );
128
129 // apply low-pass filter, removing spectral image (IIR using direct-form II)
130 iir_buf[2] = iir_buf[1];
131 iir_buf[1] = iir_buf[0];
132 iir_buf[0] = x - a[1]*iir_buf[1] - a[2]*iir_buf[2];
133 x = b[0]*iir_buf[0] +
134 b[1]*iir_buf[1] +
135 b[2]*iir_buf[2];
136
137 // compute instantaneous frequency by looking at phase difference
138 // between adjacent samples
139 float freq = cargf(x*conjf(x_prime));
140 x_prime = x; // retain this sample for next iteration
141
142 output[i] =(freq > 0) ? 127 : -127;
143 }
144
145 // show data
146 //memcpy(data, output, adjustedLen);
147 for (j=0; j<adjustedLen; ++j)
148 data[j] = output[j];
149
150 free(output);
151 }
152
153 void iceSimple_Filter(int *data, const size_t len, uint8_t k){
154 // ref: http://www.edn.com/design/systems-design/4320010/A-simple-software-lowpass-filter-suits-embedded-system-applications
155 // parameter K
156 #define FILTER_SHIFT 4
157
158 int32_t filter_reg = 0;
159 int16_t input, output;
160 int8_t shift = (k <=8 ) ? k : FILTER_SHIFT;
161
162 for (int i = 0; i < len; ++i){
163
164 input = data[i];
165 // Update filter with current sample
166 filter_reg = filter_reg - (filter_reg >> shift) + input;
167
168 // Scale output for unity gain
169 output = filter_reg >> shift;
170 data[i] = output;
171 }
172 }
173
174 float complex cexpf (float complex Z)
175 {
176 float complex Res;
177 double rho = exp (__real__ Z);
178 __real__ Res = rho * cosf(__imag__ Z);
179 __imag__ Res = rho * sinf(__imag__ Z);
180 return Res;
181 }
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