Added utilities > Frequency manager + load/save

firmware/application/freqman.cpp

@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2016 Furrtek
+ *
+ * This file is part of PortaPack.
+ *
+ * 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, 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; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "freqman.hpp"
+
+bool load_freqman_file(std::vector<freqman_entry> &frequencies) {
+	File freqs_file;
+	size_t end, n = 0;
+	char * file_buffer;
+	char * desc_pos;
+	char desc_buffer[32] = { 0 };
+	std::string description;
+	rf::Frequency value;
+	
+	file_buffer = (char *)chHeapAlloc(0, 2048);
+	
+	while (freqs_file.open("freqman.txt").is_valid()) {
+		auto result = freqs_file.create("freqman.txt");
+		if (result.is_valid()) {
+			return false;
+		}
+	}
+	
+	freqs_file.read(file_buffer, 2048);
+
+	char * pos = file_buffer;
+	while ((pos = strstr(pos, "f=")) && n < 32) {
+		pos += 2;
+		
+		value = strtol(pos, nullptr, 10);
+
+		desc_pos = strstr(pos, "d=");
+		if (desc_pos) {
+			desc_pos += 2;
+			end = strcspn(desc_pos, ",\x0D\x0A");		// CR LF
+			if (end > 31) end = 31;
+			memcpy(desc_buffer, desc_pos, end);
+			desc_buffer[end] = (char)0;
+			description = desc_buffer;
+			pos = desc_pos;
+		} else {
+			description = "-";
+		}
+		
+		frequencies.push_back({ value, "", description });
+	}
+	
+	chHeapFree(file_buffer);
+	
+	return true;
+}
+
+bool save_freqman_file(std::vector<freqman_entry> &frequencies) {
+	File freqs_file;
+	size_t n;
+	std::string item_string;
+	
+	auto result = freqs_file.create("freqman.txt");
+	if (result.is_valid()) return false;
+	
+	for (n = 0; n < frequencies.size(); n++) {
+		item_string = "f=" + to_string_dec_uint(frequencies[n].value);
+		
+		if (frequencies[n].description.size())
+			item_string += ",d=" + frequencies[n].description;
+		
+		freqs_file.write_line(item_string);
+	}
+	
+	return true;
+}
+
+std::string freqman_item_string(freqman_entry &entry) {
+	std::string item_string, frequency_str, description;
+	char temp_buffer[32];
+	rf::Frequency value;
+	
+	value = entry.value;
+	entry.frequency_str = to_string_dec_int(value / 1000000, 4) + "." +
+							to_string_dec_int((value / 100) % 10000, 4, '0');
+	
+	if (entry.description.size() <= 19) {
+		item_string = entry.frequency_str + ":" + entry.description;
+	} else {
+		memcpy(temp_buffer, entry.description.c_str(), 16);
+		temp_buffer[16] = (char)0;
+		item_string = entry.frequency_str + ":" + temp_buffer + "...";
+	}
+	
+	return item_string;
+}