103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
#include "defs.h"
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#include "gui/gui.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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static struct {
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gui *g;
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widget *input_signal; /* CC_id 0 antenna 0 */
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volatile int input_signal_length; /* unit: byte */
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void *input_signal_iq;
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pthread_mutex_t input_signal_lock;
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} eNB_data;
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static void *gui_thread(void *g)
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{
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gui_loop(g);
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exit(0);
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}
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static void *input_signal_plotter(void *_)
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{
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short *iqbuf;
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float *x;
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float *y;
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int i;
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int length = eNB_data.input_signal_length / 4;
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x = calloc(1, sizeof(float) * eNB_data.input_signal_length / 4);
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y = calloc(1, sizeof(float) * eNB_data.input_signal_length / 4);
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if (x == NULL || y == NULL) abort();
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while (1) {
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usleep(100 * 1000);
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if (pthread_mutex_lock(&eNB_data.input_signal_lock)) abort();
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if (length * 4 != eNB_data.input_signal_length) {
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free(x);
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free(y);
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x = calloc(1, sizeof(float) * eNB_data.input_signal_length / 4);
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y = calloc(1, sizeof(float) * eNB_data.input_signal_length / 4);
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if (x == NULL || y == NULL) abort();
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length = eNB_data.input_signal_length / 4;
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}
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iqbuf = eNB_data.input_signal_iq;
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for (i = 0; i < length; i++) {
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x[i] = i;
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y[i] = 10*log10(1.0+(float)(iqbuf[2*i]*iqbuf[2*i]+
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iqbuf[2*i+1]*iqbuf[2*i+1]));
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}
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xy_plot_set_points(eNB_data.g, eNB_data.input_signal, 0,
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length, x, y);
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if (pthread_mutex_unlock(&eNB_data.input_signal_lock)) abort();
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}
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}
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void t_gui_start(void)
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{
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gui *g = gui_init();
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widget *win = new_toplevel_window(g, 550, 140, "input signal");
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widget *plot = new_xy_plot(g, 512, 100, "eNB 0 input signal", 20);
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widget_add_child(g, win, plot, -1);
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xy_plot_set_range(g, plot, 0, 76800, 30, 70);
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xy_plot_new_plot(g, plot, FOREGROUND_COLOR);
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eNB_data.input_signal = plot;
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eNB_data.input_signal_length = 76800 * 4;
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eNB_data.input_signal_iq = calloc(1, 76800 * 4);
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if (eNB_data.input_signal_iq == NULL) abort();
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pthread_mutex_init(&eNB_data.input_signal_lock, NULL);
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eNB_data.g = g;
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new_thread(gui_thread, g);
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new_thread(input_signal_plotter, NULL);
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}
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void t_gui_set_input_signal(int eNB, int frame, int subframe, int antenna,
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int size, void *buf)
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{
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if (pthread_mutex_lock(&eNB_data.input_signal_lock)) abort();
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if (eNB_data.input_signal_length != size * 10) {
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free(eNB_data.input_signal_iq);
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eNB_data.input_signal_length = size * 10;
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eNB_data.input_signal_iq = calloc(1, eNB_data.input_signal_length);
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if (eNB_data.input_signal_iq == NULL) abort();
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}
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memcpy((char *)eNB_data.input_signal_iq + subframe * size, buf, size);
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if (pthread_mutex_unlock(&eNB_data.input_signal_lock)) abort();
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}
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