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-rw-r--r--util/dib3000-watch/dib3000-watch.c296
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diff --git a/util/dib3000-watch/dib3000-watch.c b/util/dib3000-watch/dib3000-watch.c
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+++ b/util/dib3000-watch/dib3000-watch.c
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+/*
+ * Tool for watching the dib3000*-demodulators,
+ * with an extended output.
+ *
+ * Copyright (C) 2005 by Patrick Boettcher <patrick.boettcher@desy.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include <getopt.h>
+
+#include <signal.h>
+
+#include <math.h>
+
+#include <fcntl.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <linux/types.h>
+
+#include "dib-i2c.h"
+#include "dib3000-watch.h"
+#include "dib3000.h"
+
+void usage (void)
+{
+ verb("usage: dib3000-watch -d <i2c-device> -a <i2c-address> [-o <type>] [-i <seconds>]\n"
+ " -d normally one of /dev/i2c-[0-255]\n"
+ " -a is 8 for DiB3000M-B and 9, 10, 11 or 12 for DiB3000M-C or DiB3000-P\n"
+ " -o output type (print|csv) (default: print)\n"
+ " -i query interval in seconds (default: 0.1)\n"
+ "\n"
+ "Don't forget to run tzap or any other dvb-tune program (vdr, kaxtv) in order to tune a channel,\n"
+ "tuning isn't done by this tool.\n"
+ "\n"
+ "A lot of thing have been taken for the dibusb, dib3000m[bc] driver from kernel and\n"
+ "from t_demod-test software created by DiBcom. Both is GPL, so is dib-demod-watch.\n"
+ "\n"
+ "Copyright (C) 2005 by Patrick Boettcher <patrick.boettcher@desy.de>\n"
+ "\n"
+ "The source of this tool is released under the GPL.\n"
+ );
+ exit(1);
+}
+
+__u16 dib_read_reg(struct dib_demod *dib,__u16 reg)
+{
+ int ret;
+ __u8 wb[] = { ((reg >> 8) | 0x80) & 0xff, reg & 0xff };
+ __u8 rb[2];
+ struct i2c_msg msg[] = {
+ { .addr = dib->i2c_addr, .flags = 0, .buf = wb, .len = 2 },
+ { .addr = dib->i2c_addr, .flags = I2C_M_RD, .buf = rb, .len = 2 },
+ };
+ struct i2c_rdwr_ioctl_data i2c_data = {
+ .msgs = msg,
+ .nmsgs = 2,
+ };
+
+ if ((ret = ioctl(dib->fd,I2C_RDWR,&i2c_data)) != 2) {
+ err("i2c_rdwr read failed. (%d)\n",ret);
+ return 0;
+ }
+ return (rb[0] << 8)| rb[1];
+};
+
+int dib_write_reg(struct dib_demod *dib, __u16 reg, __u16 val)
+{
+ int ret;
+ __u8 b[] = {
+ (reg >> 8) & 0xff, reg & 0xff,
+ (val >> 8) & 0xff, val & 0xff,
+ };
+ struct i2c_msg msg[] = {
+ { .addr = dib->i2c_addr, .flags = 0, .buf = b, .len = 4 }
+ };
+ struct i2c_rdwr_ioctl_data i2c_data = {
+ .msgs = msg,
+ .nmsgs = 1,
+ };
+
+ if ((ret = ioctl(dib->fd,I2C_RDWR,&i2c_data)) != 1) {
+ err("i2c_rdwr write failed. (%d)\n",ret);
+ return -1;
+ }
+ return 0;
+}
+
+int dib3000mb_monitoring(struct dib_demod *dib,struct dib3000mb_monitoring *m)
+{
+ int dds_freq, p_dds_freq,
+ n_agc_power = dib_read_reg(dib,DIB3000MB_REG_AGC_POWER),
+ rf_power = dib_read_reg(dib,DIB3000MB_REG_RF_POWER),
+ timing_offset;
+ double ad_power_dB, minor_power;
+
+ m->invspec = dib_read_reg(dib,DIB3000MB_REG_DDS_INV);
+ m->nfft = dib_read_reg(dib,DIB3000MB_REG_TPS_FFT);
+
+ m->agc_lock = dib_read_reg(dib,DIB3000MB_REG_AGC_LOCK);
+ m->carrier_lock = dib_read_reg(dib,DIB3000MB_REG_CARRIER_LOCK);
+ m->tps_lock = dib_read_reg(dib,DIB3000MB_REG_TPS_LOCK);
+ m->vit_lock = dib_read_reg(dib,DIB3000MB_REG_VIT_LCK);
+ m->ts_sync_lock = dib_read_reg(dib,DIB3000MB_REG_TS_SYNC_LOCK);
+ m->ts_data_lock = dib_read_reg(dib,DIB3000MB_REG_TS_RS_LOCK);
+
+ p_dds_freq = ((dib_read_reg(dib,DIB3000MB_REG_DDS_FREQ_MSB) & 0xff) << 8) |
+ ((dib_read_reg(dib,DIB3000MB_REG_DDS_FREQ_LSB) & 0xff00) >> 8);
+ dds_freq = ((dib_read_reg(dib,DIB3000MB_REG_DDS_VALUE_MSB) & 0xff) << 8) |
+ ((dib_read_reg(dib,DIB3000MB_REG_DDS_VALUE_LSB) & 0xff00) >> 8);
+ if (m->invspec)
+ dds_freq = (1 << 16) - dds_freq;
+ m->carrier_offset = (double)(dds_freq - p_dds_freq) / (double)(1 << 16) * DEF_SampFreq_KHz;
+
+ m->ber = (double)((dib_read_reg(dib,DIB3000MB_REG_BER_MSB) << 16) | dib_read_reg(dib,DIB3000MB_REG_BER_LSB)) / (double) 1e8;
+ m->per = dib_read_reg(dib,DIB3000MB_REG_PACKET_ERROR_RATE);
+ m->unc = dib_read_reg(dib,DIB3000MB_REG_UNC);
+ m->fft_pos = dib_read_reg(dib,DIB3000MB_REG_FFT_WINDOW_POS);
+ m->snr = 10.0 * log10( (double)(dib_read_reg(dib,DIB3000MB_REG_SIGNAL_POWER) << 8) /
+ (double)((dib_read_reg(dib,DIB3000MB_REG_NOISE_POWER_MSB) << 16) + dib_read_reg(dib,DIB3000MB_REG_NOISE_POWER_LSB)));
+
+ m->mer = (double) ((dib_read_reg(dib,DIB3000MB_REG_MER_MSB) << 16) + dib_read_reg(dib,DIB3000MB_REG_MER_LSB))
+ / (double) (1<<9) / (m->nfft ? 767.0 : 191.0);
+
+ if (n_agc_power == 0)
+ n_agc_power = 1;
+ ad_power_dB = 10 * log10( (double)(n_agc_power) / (double)(1<<16));
+ minor_power = ad_power_dB - DEF_agc_ref_dB ;
+ m->rf_power = -DEF_gain_slope_dB * (double)rf_power/(double)(1<<16) + DEF_gain_delta_dB + minor_power;
+
+ timing_offset =
+ (dib_read_reg(dib,DIB3000MB_REG_TIMING_OFFSET_MSB) << 16) + dib_read_reg(dib,DIB3000MB_REG_TIMING_OFFSET_LSB);
+ if (timing_offset >= 0x800000)
+ timing_offset |= 0xff000000;
+ m->timing_offset_ppm = -(double)timing_offset / (double)(m->nfft ? 8192 : 2048) * 1e6 / (double)(1<<20);
+
+ return 0;
+}
+
+int dib3000mb_print_monitoring(struct dib3000mb_monitoring *m)
+{
+ printf("DiB3000M-B status\n\n");
+ printf(" AGC lock: %10d\n",m->agc_lock);
+ printf(" carrier lock: %10d\n",m->carrier_lock);
+ printf(" TPS synchronize lock: %10d\n",m->tps_lock);
+ printf(" Viterbi lock: %10d\n",m->vit_lock);
+ printf(" MPEG TS synchronize lock: %10d\n",m->ts_sync_lock);
+ printf(" MPEG TS data lock: %10d\n",m->ts_data_lock);
+ printf("\n\n");
+ printf(" spectrum inversion: %10d\n",m->invspec);
+ printf(" carrier offset: %3.7g\n",m->carrier_offset);
+ printf("\n\n");
+ printf(" bit error rate: %3.7g\n",m->ber);
+ printf(" packet error rate: %10d\n",m->per);
+ printf(" packet error count: %10d\n",m->unc);
+ printf("\n\n");
+ printf(" fft position: %10d\n",m->fft_pos);
+ printf(" transmission mode: %10s\n",m->nfft ? "8k" : "2k");
+ printf("\n\n");
+ printf(" C / (N + I) = %3.7g\n",m->snr);
+ printf(" MER = %3.7g dB\n",m->mer);
+ printf(" RF power = %3.7g dBm\n",m->rf_power);
+ printf(" timing offset = %3.7g ppm\n",m->timing_offset_ppm);
+ return 0;
+}
+
+int interrupted;
+
+void sighandler (int sig)
+{
+ (void)sig;
+ interrupted = 1;
+}
+
+typedef enum {
+ OUT_PRINT = 0,
+ OUT_CSV,
+} dib3000m_output_t;
+
+int main (int argc, char * const argv[])
+{
+ struct dib_demod dib;
+ struct dib3000mb_monitoring mon;
+ const char *dev = NULL;
+ float intervall = 0.1;
+ dib3000m_output_t out = OUT_PRINT;
+ int c;
+
+ while ((c = getopt(argc,argv,"d:a:o:i:")) != -1) {
+ switch (c) {
+ case 'd':
+ dev = optarg;
+ break;
+ case 'a':
+ dib.i2c_addr = atoi(optarg); /* The I2C address */
+ break;
+ case 'o':
+ if (strcasecmp(optarg,"print") == 0) out = OUT_PRINT;
+ else if (strcasecmp(optarg,"csv") == 0) out = OUT_CSV;
+ else usage();
+ break;
+ case 'i':
+ intervall = atof(optarg);
+ break;
+ default:
+ usage();
+ }
+ }
+
+ if (dev == NULL)
+ usage();
+
+ interrupted = 0;
+ signal(SIGINT, sighandler);
+ signal(SIGKILL, sighandler);
+ signal(SIGHUP, sighandler);
+
+ verb("will use '%s' as i2c-device and %d as i2c address.\n",dev,dib.i2c_addr);
+
+ if ((dib.fd = open(dev,O_RDWR)) < 0) {
+ err("could not open %s\n",dev);
+ exit(1);
+ }
+
+ if (ioctl(dib.fd,I2C_SLAVE,dib.i2c_addr) < 0) {
+ err("could not set i2c address\n");
+ exit(1);
+ }
+
+ if (dib_read_reg(&dib,DIB3000_REG_MANUFACTOR_ID) != DIB3000_I2C_ID_DIBCOM) {
+ err("could not find a dib3000 demodulator at i2c-address %d\n",dib.i2c_addr);
+ exit(1);
+ }
+
+ switch (dib_read_reg(&dib,DIB3000_REG_DEVICE_ID)) {
+ case DIB3000MB_DEVICE_ID:
+ verb("found a DiB3000M-B demodulator.\n");
+ dib.rev = DIB3000MB;
+ break;
+ case DIB3000MC_DEVICE_ID:
+ verb("found a DiB3000M-C demodulator.\n");
+ dib.rev = DIB3000MC;
+ break;
+ case DIB3000P_DEVICE_ID:
+ verb("found a DiB3000-P demodulator.\n");
+ dib.rev = DIB3000P;
+ break;
+ default:
+ err("unsupported demodulator found.\n");
+ }
+
+ while (!interrupted) {
+ switch (dib.rev) {
+ case DIB3000MB:
+ dib3000mb_monitoring(&dib,&mon);
+ if (out == OUT_PRINT) {
+ printf("\E[H\E[2J");
+ dib3000mb_print_monitoring(&mon);
+ } else if (out == OUT_CSV) {
+ printf("no csv output implemented yet.\n");
+ }
+ break;
+ default:
+ interrupted=1;
+ err("no monitoring writting for this demod, yet.\n");
+ }
+ usleep((int) (intervall * 1000000));
+ }
+
+ close(dib.fd);
+
+ return 0;
+}
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