From d293b9a7021dc6e9a600ca492d62935354cb1374 Mon Sep 17 00:00:00 2001
From: Ralph Metzler <rjkm@metzlerbros.de>
Date: Mon, 5 Aug 2019 16:02:34 +0200
Subject: [PATCH] add options to setmod app for type 3 mods

---
 apps/setmod3.c | 94 ++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 79 insertions(+), 15 deletions(-)

diff --git a/apps/setmod3.c b/apps/setmod3.c
index 302cb09..83c10f8 100644
--- a/apps/setmod3.c
+++ b/apps/setmod3.c
@@ -10,6 +10,7 @@
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <pthread.h>
+#include <getopt.h>
 
 #include <linux/dvb/mod.h>
 
@@ -51,33 +52,96 @@ static int get_property(int fd, uint32_t cmd, uint32_t *data)
 
 
 
-int main()
+int main(int argc, char*argv[])
 {
 	int fd;
 	struct dvb_mod_params mp;
 	struct dvb_mod_channel_params mc;
 	uint32_t data;
+	int adapter = 0, channel = 0, gain = -1;
+	int32_t base = -1, freq = -1, rate = -1;
+	char mod_name[128];
 	
-	fd = open("/dev/dvb/adapter0/mod0", O_RDONLY);
+	while (1) {
+		int cur_optind = optind ? optind : 1;
+		int option_index = 0;
+		int c;
+		static struct option long_options[] = {
+			{"adapter", required_argument, 0, 'a'},
+			{"channel", required_argument, 0, 'c'},
+			{"gain", required_argument, 0, 'g'},
+			{"base", required_argument, 0, 'b'},
+			{"frequency", required_argument, 0, 'f'},
+			{"rate", required_argument, 0, 'r'},
+			{0, 0, 0, 0}
+		};
+                c = getopt_long(argc, argv, 
+				"a:c:g:b:f:r:",
+				long_options, &option_index);
+		if (c==-1)
+			break;
 
+		switch (c) {
+		case 'a':
+			adapter = strtoul(optarg, NULL, 0);
+			break;
+		case 'c':
+			channel = strtoul(optarg, NULL, 0);
+			break;
+		case 'g':
+			gain = strtoul(optarg, NULL, 0);
+			break;
+		case 'b':
+			base = strtoul(optarg, NULL, 0);
+			break;
+		case 'f':
+			freq = strtoul(optarg, NULL, 0);
+			break;
+		case 'r':
+			if (!strcmp(optarg, "DVBT_8"))
+				rate = SYS_DVBT_8;
+			else if (!strcmp(optarg, "DVBT_7"))
+				rate = SYS_DVBT_7;
+			else if (!strcmp(optarg, "DVBT_6"))
+				rate = SYS_DVBT_6;
+			else if (!strcmp(optarg, "ISDBT_6"))
+				rate = SYS_ISDBT_6;
+			else rate = strtoul(optarg, NULL, 0);
+			break;
+		default:
+			break;
+		}
+	}
+	if (optind < argc) {
+		printf("too man arguments\n");
+		exit(1);
+	}
+
+	snprintf(mod_name, 127, "/dev/dvb/adapter%d/mod%d", adapter, channel);
+	fd = open(mod_name, O_RDONLY);
+	
+	if (fd < 0)  {
+		printf("Could not open modulator device.\n");
+		exit(1);
+	}
+		
+	
 	/* gain 0-255 */
-	get_property(fd, MODULATOR_GAIN, &data);
-	printf("Modulator gain = %u\n", data);
-	set_property(fd, MODULATOR_GAIN, 100);
+	//get_property(fd, MODULATOR_GAIN, &data);
+	//printf("Modulator gain = %u\n", data);
+	//set_property(fd, MODULATOR_GAIN, 100);
 
-	get_property(fd, MODULATOR_GAIN, &data);
-	printf("Modulator gain = %u\n", data);
+	//get_property(fd, MODULATOR_ATTENUATOR, &data);
+	//printf("Modulator attenuator = %u\n", data);
 
-	get_property(fd, MODULATOR_ATTENUATOR, &data);
-	printf("Modulator attenuator = %u\n", data);
-
-	
-	get_property(fd, MODULATOR_STATUS, &data);
-	printf("Modulator status = %u\n", data);
-	set_property(fd, MODULATOR_STATUS, 2);
+	if (base > 0)
+		set_property(fd, MODULATOR_BASE_FREQUENCY, base);
+	if (freq > 0)
+		set_property(fd, MODULATOR_FREQUENCY, base);
+	if (rate > 0)
+		set_property(fd, MODULATOR_OUTPUT_RATE, rate);
 	
 	
-	//set_property(fd, MODULATOR_RESET, 0);
 	close(fd);
 }