From fee4846c3f505081c37094c29cd21a483c030500 Mon Sep 17 00:00:00 2001
From: Andreas Eversberg <jolly@eversberg.eu>
Date: Sat, 7 Jan 2017 16:53:28 +0100
Subject: [PATCH] SDR forces default settings: emphasis and FSK polarity

---
 src/amps/main.c  | 8 ++++++++
 src/bnetz/main.c | 6 ++++++
 src/cnetz/main.c | 8 ++++++++
 src/nmt/main.c   | 6 ++++++
 4 files changed, 28 insertions(+)

diff --git a/src/amps/main.c b/src/amps/main.c
index e97c5d4..da4a37f 100644
--- a/src/amps/main.c
+++ b/src/amps/main.c
@@ -325,6 +325,12 @@ int main(int argc, char *argv[])
 	if (i == num_kanal)
 		fprintf(stderr, "You did not define any VC (voice) channel. You will not be able to make any call.\n");
 
+	/* SDR always requires emphasis */
+	if (!strcmp(audiodev[0], "sdr")) {
+		do_pre_emphasis = 1;
+		do_de_emphasis = 1;
+	}
+
 	if (!do_pre_emphasis || !do_de_emphasis) {
 		fprintf(stderr, "*******************************************************************************\n");
 		fprintf(stderr, "I strongly suggest to let me do pre- and de-emphasis (options -p -d)!\n");
@@ -338,6 +344,8 @@ int main(int argc, char *argv[])
 		polarity = 1; /* positive */
 	else if (!strcmp(flip_polarity, "yes"))
 		polarity = -1; /* negative */
+	if (!strcmp(audiodev[0], "sdr"))
+		polarity = 1; /* SDR is always positive */
 	else {
 		fprintf(stderr, "You must define, if the the TX deviation polarity has to be flipped. (-F yes | no) See help.\n");
 		exit(0);
diff --git a/src/bnetz/main.c b/src/bnetz/main.c
index 409b574..a2381fd 100644
--- a/src/bnetz/main.c
+++ b/src/bnetz/main.c
@@ -185,6 +185,12 @@ int main(int argc, char *argv[])
 		goto fail;
 	}
 
+	/* SDR always requires emphasis */
+	if (!strcmp(audiodev[0], "sdr")) {
+		do_pre_emphasis = 1;
+		do_de_emphasis = 1;
+	}
+
 	/* create transceiver instance */
 	for (i = 0; i < num_kanal; i++) {
 		rc = bnetz_create(kanal[i], audiodev[i], samplerate, rx_gain, gfs, do_pre_emphasis, do_de_emphasis, write_rx_wave, write_tx_wave, read_rx_wave, loopback, (double)lossdetect / 100.0, paging[i]);
diff --git a/src/cnetz/main.c b/src/cnetz/main.c
index ddb8216..ba22121 100644
--- a/src/cnetz/main.c
+++ b/src/cnetz/main.c
@@ -285,6 +285,12 @@ int main(int argc, char *argv[])
 	if (i == num_kanal)
 		fprintf(stderr, "You did not define any SpK (speech) channel. You will not be able to make any call.\n");
 
+	/* SDR always requires emphasis */
+	if (!strcmp(audiodev[0], "sdr")) {
+		do_pre_emphasis = 1;
+		do_de_emphasis = 1;
+	}
+
 	if (!do_pre_emphasis || !do_de_emphasis) {
 		fprintf(stderr, "*******************************************************************************\n");
 		fprintf(stderr, "I strongly suggest to let me do pre- and de-emphasis (options -p -d)!\n");
@@ -299,6 +305,8 @@ int main(int argc, char *argv[])
 		polarity = 1; /* positive */
 	if (!strcmp(flip_polarity, "yes"))
 		polarity = -1; /* negative */
+	if (!strcmp(audiodev[0], "sdr") && polarity == 0)
+		polarity = 1; /* SDR is always positive */
 
 	/* create transceiver instance */
 	for (i = 0; i < num_kanal; i++) {
diff --git a/src/nmt/main.c b/src/nmt/main.c
index 085330a..36a88ae 100644
--- a/src/nmt/main.c
+++ b/src/nmt/main.c
@@ -341,6 +341,12 @@ int main(int argc, char *argv[])
 		goto fail;
 	}
 
+	/* SDR always requires emphasis */
+	if (!strcmp(audiodev[0], "sdr")) {
+		do_pre_emphasis = 1;
+		do_de_emphasis = 1;
+	}
+
 	/* create transceiver instance */
 	for (i = 0; i < num_kanal; i++) {
 		rc = nmt_create(kanal[i], (loopback) ? CHAN_TYPE_TEST : chan_type[i], audiodev[i], samplerate, rx_gain, do_pre_emphasis, do_de_emphasis, write_rx_wave, write_tx_wave, read_rx_wave, ms_power, nmt_digits2value(traffic_area, 2), area_no, compandor, supervisory, smsc_number, send_callerid, loopback);