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+/*
+ Copyright (C) 2014 CSP Innovazione nelle ICT s.c.a r.l. (http://www.csp.it/)
+ Copyright (C) 2016 Matthias P. Braendli (http://www.opendigitalradio.org)
+ Copyright (C) 2015 Data Path
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+
+ Authors:
+ Sergio Sagliocco <sergio.sagliocco@csp.it>
+ Matthias P. Braendli <matthias@mpb.li>
+ / | |- ')|) |-|_ _ (|,_ .| _ ,_ \
+ Data Path \(|(||_(|/_| (||_||(a)_||||(|||.(_()|||/
+
+*/
+
+#include "figs.hpp"
+#include <cstdio>
+#include <cstring>
+#include <map>
+#include <unordered_set>
+
+static std::unordered_set<int> region_ids_seen;
+
+bool fig0_11_is_complete(int region_id)
+{
+ bool complete = region_ids_seen.count(region_id);
+
+ if (complete) {
+ region_ids_seen.clear();
+ }
+ else {
+ region_ids_seen.insert(region_id);
+ }
+
+ return complete;
+}
+
+
+// FIG 0/11 Region definition
+// ETSI EN 300 401 8.1.16.1
+bool fig0_11(fig0_common_t& fig0, int indent)
+{
+ Lat_Lng gps_pos = {0, 0};
+ int16_t Latitude_coarse, Longitude_coarse;
+ uint16_t Region_Id, Extent_Latitude, Extent_Longitude, key;
+ uint8_t i = 1, j, k, GATy, Rfu, Length_TII_list, Rfa, MainId, Length_SubId_list, SubId;
+ int8_t bit_pos;
+ char desc[256];
+ char tmpbuf[256];
+ bool GE_flag;
+ uint8_t* f = fig0.f;
+ uint8_t Mode_Identity = get_mode_identity();
+ bool complete = false;
+
+ while (i < (fig0.figlen - 1)) {
+ // iterate over Region definition
+ GATy = f[i] >> 4;
+ GE_flag = (f[i] >> 3) & 0x01;
+ Region_Id = ((uint16_t)(f[i] & 0x07) << 8) | ((uint16_t)f[i+1]);
+ complete |= fig0_11_is_complete(Region_Id);
+
+ key = ((uint16_t)fig0.oe() << 12) | ((uint16_t)fig0.pd() << 11) | Region_Id;
+ i += 2;
+ if (GATy == 0) {
+ // TII list
+ sprintf(desc, "GATy=%d Geographical area defined by a TII list, G/E flag=%d %s coverage area, RegionId=0x%X, database key=0x%X",
+ GATy, GE_flag, GE_flag?"Global":"Ensemble", Region_Id, key);
+ if (i < fig0.figlen) {
+ Rfu = f[i] >> 5;
+ if (Rfu != 0) {
+ sprintf(tmpbuf, ", Rfu=%d invalid value", Rfu);
+ strcat(desc, tmpbuf);
+ }
+ Length_TII_list = f[i] & 0x1F;
+ sprintf(tmpbuf, ", Length of TII list=%d", Length_TII_list);
+ strcat(desc, tmpbuf);
+ if (Length_TII_list == 0) {
+ strcat(desc, ", CEI");
+ }
+ printbuf(desc, indent+1, NULL, 0);
+ i++;
+
+ for(j = 0;(i < (fig0.figlen - 1)) && (j < Length_TII_list); j++) {
+ // iterate over Transmitter group
+ Rfa = f[i] >> 7;
+ MainId = f[i] & 0x7F;
+ if (Rfa != 0) {
+ sprintf(desc, "Rfa=%d invalid value, MainId=0x%X",
+ Rfa, MainId);
+ }
+ else {
+ sprintf(desc, "MainId=0x%X", MainId);
+ }
+ // check MainId value
+ if ((Mode_Identity == 1) || (Mode_Identity == 2) || (Mode_Identity == 4)) {
+ if (MainId > 69) {
+ // The coding range shall be 0 to 69 for transmission modes I, II and IV
+ sprintf(tmpbuf, " invalid value for transmission mode %d", Mode_Identity);
+ strcat(desc, tmpbuf);
+ }
+ }
+ else if (Mode_Identity == 3) {
+ if (MainId > 5) {
+ // The coding range shall be 0 to 5 for transmission modes I, II and IV
+ sprintf(tmpbuf, " invalid value for transmission mode %d", Mode_Identity);
+ strcat(desc, tmpbuf);
+ }
+ }
+ Rfa = f[i+1] >> 5;
+ if (Rfa != 0) {
+ sprintf(tmpbuf, ", Rfa=%d invalid value", Rfa);
+ strcat(desc, tmpbuf);
+ }
+ Length_SubId_list = f[i+1] & 0x1F;
+ sprintf(tmpbuf, ", Length of SubId=%d", Length_SubId_list);
+ strcat(desc, tmpbuf);
+ printbuf(desc, indent+2, NULL, 0);
+ i += 2;
+
+ bit_pos = 3;
+ SubId = 0;
+ for(k = 0;(i < fig0.figlen) && (k < Length_SubId_list); k++) {
+ // iterate SubId
+ if (bit_pos >= 0) {
+ SubId |= (f[i] >> bit_pos) & 0x1F;
+ sprintf(desc, "SubId=0x%X", SubId);
+ // check SubId value
+ if ((SubId == 0) || (SubId > 23)) {
+ strcat(desc, " invalid value");
+ }
+ printbuf(desc, indent+3, NULL, 0);
+ bit_pos -= 5;
+ SubId = 0;
+ }
+ if (bit_pos < 0) {
+ SubId = (f[i] << abs(bit_pos)) & 0x1F;
+ bit_pos += 8;
+ i++;
+ }
+ }
+ if (bit_pos > 3) {
+ // jump padding
+ i++;
+ }
+ if (k < Length_SubId_list) {
+ sprintf(desc, "%d SubId missing, fig length too short !", (Length_SubId_list - k));
+ printbuf(desc, indent+3, NULL, 0);
+ fprintf(stderr, "WARNING: FIG 0/%d length %d too short !\n", fig0.ext(), fig0.figlen);
+ }
+ }
+ if (j < Length_TII_list) {
+ sprintf(desc, "%d Transmitter group missing, fig length too short !", (Length_TII_list - j));
+ printbuf(desc, indent+2, NULL, 0);
+ fprintf(stderr, "WARNING: FIG 0/%d length %d too short !\n", fig0.ext(), fig0.figlen);
+ }
+ }
+ }
+ else if (GATy == 1) {
+ // Coordinates
+ sprintf(desc, "GATy=%d Geographical area defined as a spherical rectangle by the geographical co-ordinates of one corner and its latitude and longitude extents, G/E flag=%d %s coverage area, RegionId=0x%X, database key=0x%X",
+ GATy, GE_flag, GE_flag?"Global":"Ensemble", Region_Id, key);
+ if (i < (fig0.figlen - 6)) {
+ Latitude_coarse = ((int16_t)f[i] << 8) | ((uint16_t)f[i+1]);
+ Longitude_coarse = ((int16_t)f[i+2] << 8) | ((uint16_t)f[i+3]);
+ gps_pos.latitude = ((double)Latitude_coarse) * 90 / 32768;
+ gps_pos.longitude = ((double)Latitude_coarse) * 180 / 32768;
+ sprintf(tmpbuf, ", Lat Lng coarse=0x%X 0x%X => %f, %f",
+ Latitude_coarse, Longitude_coarse, gps_pos.latitude, gps_pos.longitude);
+ strcat(desc, tmpbuf);
+ Extent_Latitude = ((uint16_t)f[i+4] << 4) | ((uint16_t)(f[i+5] >> 4));
+ Extent_Longitude = ((uint16_t)(f[i+5] & 0x0F) << 8) | ((uint16_t)f[i+6]);
+ gps_pos.latitude += ((double)Extent_Latitude) * 90 / 32768;
+ gps_pos.longitude += ((double)Extent_Longitude) * 180 / 32768;
+ sprintf(tmpbuf, ", Extent Lat Lng=0x%X 0x%X => %f, %f",
+ Extent_Latitude, Extent_Longitude, gps_pos.latitude, gps_pos.longitude);
+ strcat(desc, tmpbuf);
+ }
+ else {
+ sprintf(tmpbuf, ", Coordinates missing, fig length too short !");
+ strcat(desc, tmpbuf);
+ fprintf(stderr, "WARNING: FIG 0/%d length %d too short !\n", fig0.ext(), fig0.figlen);
+ }
+ printbuf(desc, indent+1, NULL, 0);
+ i += 7;
+ }
+ else {
+ // Rfu
+ sprintf(desc, "GATy=%d reserved for future use of the geographical, G/E flag=%d %s coverage area, RegionId=0x%X, database key=0x%X, stop Region definition iteration %d/%d",
+ GATy, GE_flag, GE_flag?"Global":"Ensemble", Region_Id, key, i, fig0.figlen);
+ printbuf(desc, indent+1, NULL, 0);
+ // stop Region definition iteration
+ i = fig0.figlen;
+ }
+ }
+
+ return complete;
+}
+
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