simple sx8 status info tool

2025-03-01 10:35:23 +00:00 · 2021-03-18 14:02:26 +01:00
parent a6c3b82f83
commit 91af1be97e
1 changed files with 123 additions and 0 deletions
--- a/apps/sx8info.c
+++ b/apps/sx8info.c
@@ -0,0 +1,123 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <linux/types.h>
+#include <getopt.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef int16_t s16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+#include "../ddbridge/ddbridge-mci.h"
+#include "../ddbridge/ddbridge-ioctl.h"
+
+char *Rolloff[8] = {
+	"0.35",
+	"0.25",
+	"0.20",
+	"0.10",
+	"0.05",
+	"0.15",
+	"rsvd",
+	"rsvd",
+};
+
+void print_info(struct mci_result *res)
+{
+	if (res->status == MCI_DEMOD_STOPPED) {
+		printf("Demod stopped\n");
+		return;
+	}
+	
+	switch (res->mode) {
+		case 0:
+		case M4_MODE_DVBSX:
+		
+		if (res->dvbs2_signal_info.standard == 2) {
+			printf("PLS-Code:      %u\n", res->dvbs2_signal_info.pls_code);
+			printf("Roll-Off:      %s\n", Rolloff[res->dvbs2_signal_info.roll_off]);
+			printf("Inversion:     %s\n", (res->dvbs2_signal_info.roll_off & 0x80) ? "on": "off");
+			printf("Frequency:     %u Hz\n", res->dvbs2_signal_info.frequency);
+			printf("Symbol Rate:   %u Symbols/s\n", res->dvbs2_signal_info.symbol_rate);
+			printf("Channel Power: %.2f dBm\n", (float) res->dvbs2_signal_info.channel_power / 100);
+			printf("Band Power:    %.2f dBm\n", (float) res->dvbs2_signal_info.band_power / 100);
+			printf("SNR:           %.2f dB\n", (float) res->dvbs2_signal_info.signal_to_noise / 100);
+			printf("Packet Errors: %u\n", res->dvbs2_signal_info.packet_errors);
+			printf("BER Numerator: %u\n", res->dvbs2_signal_info.ber_numerator);
+			printf("BER Denom.:    %u\n", res->dvbs2_signal_info.ber_denominator);
+			printf("\n");
+		} else {
+			
+		}
+	}
+}
+
+int mci_info(int dev, uint8_t demod)
+{
+	struct ddb_mci_msg msg = {
+		.link = 0,
+		.cmd.command = MCI_CMD_GETSIGNALINFO,
+		.cmd.demod = demod
+	};
+	int ret;
+	int i;
+	
+	ret = ioctl(dev, IOCTL_DDB_MCI_CMD, &msg);
+	if (ret < 0) {
+		printf("%d %d\n", ret, errno);
+		return ret;
+	}
+
+	print_info(&msg.res);
+	return ret;
+}
+
+int main(int argc, char*argv[])
+{
+	int fd = -1;
+	char fn[128];
+	uint32_t device = 0;
+	uint8_t demod = 0;
+	
+	while (1) {
+		int cur_optind = optind ? optind : 1;
+		int option_index = 0;
+		int c;
+		static struct option long_options[] = {
+			{"device", required_argument, 0, 'd'},
+			{"demod", required_argument, 0, 'n'},
+			{0, 0, 0, 0}
+		};
+                c = getopt_long(argc, argv, "d:n:",
+				long_options, &option_index);
+		if (c == -1)
+			break;
+		switch (c) {
+		case 'd':
+			device = strtoul(optarg, NULL, 0);
+			break;
+		case 'n':
+			demod = strtoul(optarg, NULL, 0);
+			break;
+		default:
+			break;
+		}
+	}
+	if (optind < argc) {
+		printf("too many arguments\n");
+		exit(1);
+	}
+	snprintf(fn, 127, "/dev/ddbridge/card%u", device);
+	fd = open(fn, O_RDWR);
+	if (fd < 0)
+		return -1;
+	mci_info(fd, demod);
+}