From b1e72c788b95aeaae61ff7ba9f55b9c71e71f29c Mon Sep 17 00:00:00 2001
From: furrtek <furrtekC@gmail.com>
Date: Sun, 5 May 2019 00:43:36 +0100
Subject: [PATCH] Added RFM69 helper

LGE tool: new frames
Text entry string length bugfix
---
 firmware/application/CMakeLists.txt        |   3 +-
 firmware/application/apps/lge_app.cpp      | 222 +++++++++++++++------
 firmware/application/apps/lge_app.hpp      |  72 +++++--
 firmware/application/apps/ui_adsb_tx.cpp   |   6 +-
 firmware/application/apps/ui_aprs_tx.cpp   |   6 +-
 firmware/application/apps/ui_fileman.cpp   |  10 +-
 firmware/application/apps/ui_freqman.cpp   |  12 +-
 firmware/application/apps/ui_lcr.cpp       |  12 +-
 firmware/application/apps/ui_morse.cpp     |   2 +-
 firmware/application/apps/ui_pocsag_tx.cpp |   2 +-
 firmware/application/apps/ui_rds.cpp       |  12 +-
 firmware/application/rfm69.cpp             |  76 +++++++
 firmware/application/rfm69.hpp             |  58 ++++++
 firmware/application/ui/ui_alphanum.cpp    |   2 +-
 firmware/application/ui/ui_alphanum.hpp    |   2 +-
 firmware/application/ui/ui_textentry.cpp   |  38 ++--
 firmware/application/ui/ui_textentry.hpp   |  10 +-
 firmware/common/ui_widget.cpp              |   2 +-
 18 files changed, 417 insertions(+), 130 deletions(-)
 create mode 100644 firmware/application/rfm69.cpp
 create mode 100644 firmware/application/rfm69.hpp

diff --git a/firmware/application/CMakeLists.txt b/firmware/application/CMakeLists.txt
index c2b488a4f..a2c744503 100644
--- a/firmware/application/CMakeLists.txt
+++ b/firmware/application/CMakeLists.txt
@@ -159,7 +159,8 @@ set(CPPSRC
 	clock_manager.cpp
 	core_control.cpp
 	de_bruijn.cpp
-	emu_cc1101.cpp
+	#emu_cc1101.cpp
+	rfm69.cpp
 	event_m0.cpp
 	file.cpp
 	freqman.cpp
diff --git a/firmware/application/apps/lge_app.cpp b/firmware/application/apps/lge_app.cpp
index ac2b822e6..b0be496fa 100644
--- a/firmware/application/apps/lge_app.cpp
+++ b/firmware/application/apps/lge_app.cpp
@@ -20,12 +20,15 @@
  * Boston, MA 02110-1301, USA.
  */
 
+// The UI for this app is in French because it concerns leisure centers
+// only established in France. "LGE" stands for a trademark I'd rather
+// not spell out completely here.
+
 #include "lge_app.hpp"
 
 #include "baseband_api.hpp"
-#include "portapack_persistent_memory.hpp"
+#include "ui_textentry.hpp"
 
-#include "crc.hpp"
 #include "string_format.hpp"
 
 #include <cstring>
@@ -36,7 +39,7 @@ using namespace portapack;
 namespace ui {
 
 void LGEView::focus() {
-	tx_view.focus();
+	options_trame.focus();
 }
 
 LGEView::~LGEView() {
@@ -44,64 +47,145 @@ LGEView::~LGEView() {
 	baseband::shutdown();
 }
 
-void LGEView::generate_frame() {
-	CRC<16> crc { 0x1021, 0x90BE };
-	std::vector<uint8_t> frame { };
-	uint8_t payload[9] = { 0x06, 0x0D, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x00, 0x00 };
-	uint8_t out = 0;
+void LGEView::generate_lge_frame(const uint8_t command, const uint16_t address_a, const uint16_t address_b, std::vector<uint8_t>& data) {
+	std::array<uint8_t, 5> header = {
+		command,
+		(uint8_t)(address_a & 255),
+		(uint8_t)(address_a >> 8),
+		(uint8_t)(address_b & 255),
+		(uint8_t)(address_b >> 8),
+	};
+	
+	data.insert(data.begin(), header.begin(), header.end());
+	
+	frame_size = rfm69.gen_frame(data);
+	
+	for (auto b : data)
+		console.write(to_string_hex(b, 2) + " ");
+}
+
+void LGEView::generate_frame_pseudo() {
+	// 0040.48s:
+	// 30 02 1A 00 19 00 FF 00 02 19 42 52 45 42 49 53 20 00 00 00 00 00 00 00 00 00
+	// 04 01 B0 04 7F 1F 11 33 40 1F 22 01 07 00 00 01 07 00 00 63 05 00 00 99 A2 
+	
+	std::vector<uint8_t> data { };
+	std::array<uint8_t, 3> data_header = { 0xFF, 0x00, 0x02 };
+	std::array<uint8_t, 22> data_footer = {
+		0x01, 0xB0, 0x04, 0x7F,
+		0x1F, 0x11, 0x33, 0x40,
+		0x1F, 0x22, 0x01, 0x07,
+		0x00, 0x00, 0x01, 0x07,
+		0x00, 0x00, 0x63, 0x05,
+		0x00, 0x00
+	};
 	uint32_t c;
 	
-	payload[6] = field_zone.value();	// Zone
+	//data_header[2] = field_salle.value();	// ?
+	//data_footer[0] = field_salle.value();	// ?
 	
-	// Preamble
-	// Really is 0xAA but the RFM69 skips the very last bit (bug ?)
-	// so the whole preamble should be shifted right 1 bit to simulate that
-	for (c = 0; c < 5; c++)
-		frame.push_back(0x55);
+	data.insert(data.begin(), data_header.begin(), data_header.end());
 	
-	frame.push_back(0x2D);	// Sync word
-	frame.push_back(0xD4);
+	data.push_back(field_joueur.value());
 	
-	crc.process_bytes(payload, 9 - 2);
-	
-	payload[7] = crc.checksum() >> 8;
-	payload[8] = crc.checksum() & 0xFF;
-	
-	// Manchester-encode payload
-	for (c = 0; c < 9; c++) {
-		uint8_t byte = payload[c];
-		for (uint32_t b = 0; b < 8; b++) {
-			out <<= 2;
-			
-			if (byte & 0x80)
-				out |= 0b10;
-			else
-				out |= 0b01;
-			
-			if ((b & 3) == 3)
-				frame.push_back(out);
-			
-			byte <<= 1;
-		}
+	c = 0;
+	for (auto &ch : pseudo) {
+		data.push_back(ch);
+		c++;
 	}
+	// Space at the end, is this required ?
+	data.push_back(0x20);
+	// Pad with zeroes
+	while (++c < 16)
+		data.push_back(0x00);
 	
-	frame_size = frame.size();
+	data.push_back(field_equipe.value());
 	
-	/*std::string debug_str { "" };
+	data.insert(data.end(), data_footer.begin(), data_footer.end());
 	
-	for (c = 0; c < 10; c++)
-		debug_str += (to_string_hex(frame[c], 2) + " ");
+	console.write("\n\x1B\x0ESet pseudo:\x1B\x10");
 	
-	text_messagea.set(debug_str);
+	generate_lge_frame(0x02, 0x001A, field_joueur.value(), data);
+}
 
-	debug_str = "";
-	for (c = 15; c < frame_size; c++)
-		debug_str += (to_string_hex(frame[c], 2) + " ");
-	
-	text_messageb.set(debug_str);*/
+void LGEView::generate_frame_equipe() {
+	// 0041.83s:
+	// 3D 03 FF FF FF FF 02 03 01 52 4F 55 47 45 00 00 00 00 00 00 00 00 00 00 00 00
+	// 02 56 45 52 54 45 00 00 00 00 00 00 00 00 00 00 00 01 03 42 4C 45 55 45 00 00
+	// 00 00 00 00 00 00 00 00 00 02 43 29 
 
-	// Copy for baseband
-	memcpy(shared_memory.bb_data.data, frame.data(), frame_size);
+	std::vector<uint8_t> data { };
+	std::array<uint8_t, 2> data_header = { 0x02, 0x01 };
+	uint32_t c;
+
+	data.insert(data.begin(), data_header.begin(), data_header.end());
+	
+	data.push_back(field_equipe.value());
+	
+	c = 0;
+	for (auto &ch : pseudo) {
+		data.push_back(ch);
+		c++;
+	}
+	// Pad with zeroes
+	while (c++ < 16)
+		data.push_back(0x00);
+	
+	data.push_back(field_equipe.value() - 1);	// Color ?
+	
+	console.write("\n\x1B\x0ASet equipe:\x1B\x10");
+	
+	generate_lge_frame(0x03, data);
+}
+
+void LGEView::generate_frame_broadcast_pseudo() {
+	// 0043.86s:
+	// 3D 04 FF FF FF FF 02 03 19 42 52 45 42 49 53 20 00 00 00 00 00 00 00 00 00 04
+	// 07 50 4F 4E 45 59 20 00 00 00 00 00 00 00 00 00 00 05 1B 41 42 42 59 20 00 00
+	// 00 00 00 00 00 00 00 00 00 04 0A 02 
+
+	std::vector<uint8_t> data { };
+	std::array<uint8_t, 2> data_header = { 0x02, 0x01 };
+	uint32_t c;
+
+	data.insert(data.begin(), data_header.begin(), data_header.end());
+	
+	data.push_back(field_joueur.value());
+	
+	c = 0;
+	for (auto &ch : pseudo) {
+		data.push_back(ch);
+		c++;
+	}
+	// Space at the end, is this required ?
+	data.push_back(0x20);
+	// Pad with zeroes
+	while (++c < 16)
+		data.push_back(0x00);
+	
+	data.push_back(field_equipe.value());
+	
+	console.write("\n\x1B\x09" "Broadcast pseudo:\x1B\x10");
+	
+	generate_lge_frame(0x04, data);
+}
+
+void LGEView::generate_frame_start() {
+	// 0166.13s:
+	// 0A 05 FF FF FF FF 02 EC FF FF FF A3 35 
+	std::vector<uint8_t> data { 0x02, 0xEC, 0xFF, 0xFF, 0xFF };
+	
+	//data[0] = field_salle.value();	// ?
+	
+	console.write("\n\x1B\x0DStart:\x1B\x10");
+	generate_lge_frame(0x05, data);
+}
+
+void LGEView::generate_frame_gameover() {
+	std::vector<uint8_t> data { field_salle.value() };
+	
+	console.write("\n\x1B\x0CGameover:\x1B\x10");
+	generate_lge_frame(0x0D, data);
 }
 
 void LGEView::start_tx() {
@@ -115,7 +199,7 @@ void LGEView::start_tx() {
 	transmitter_model.set_baseband_bandwidth(1750000);
 	transmitter_model.enable();
 
-		chThdSleep(100);
+	chThdSleep(100);
 		
 	baseband::set_fsk_data(frame_size * 8, 2280000 / 9600, 4000, 256);
 }
@@ -157,20 +241,29 @@ LGEView::LGEView(NavigationView& nav) {
 	
 	add_children({
 		&labels,
-		&field_zone,
+		&options_trame,
+		&field_salle,
+		&button_texte,
+		&field_equipe,
+		&field_joueur,
 		&checkbox_channels,
-		&text_messagea,
-		&text_messageb,
+		&console,
 		&tx_view
 	});
 	
-	field_zone.set_value(1);
+	field_salle.set_value(1);
+	field_equipe.set_value(1);
+	field_joueur.set_value(1);
 	checkbox_channels.set_value(true);
 	
-	generate_frame();
-	
-	field_zone.on_change = [this](int32_t) {
-		generate_frame();
+	button_texte.on_select = [this, &nav](Button&) {
+		text_prompt(
+			nav,
+			pseudo,
+			15,
+			[this](std::string& buffer) {
+				button_texte.set_text(buffer);
+			});
 	};
 	
 	tx_view.on_edit_frequency = [this, &nav]() {
@@ -182,7 +275,18 @@ LGEView::LGEView(NavigationView& nav) {
 	
 	tx_view.on_start = [this]() {
 		if (tx_mode == IDLE) {
-			generate_frame();
+			auto i = options_trame.selected_index_value();
+			if (i == 0)
+				generate_frame_pseudo();
+			else if (i == 1)
+				generate_frame_equipe();
+			else if (i == 2)
+				generate_frame_broadcast_pseudo();
+			else if (i == 3)
+				generate_frame_start();
+			else if (i == 4)
+				generate_frame_gameover();
+			
 			repeats = 0;
 			channel_index = 0;
 			tx_mode = checkbox_channels.value() ? ALL : SINGLE;
diff --git a/firmware/application/apps/lge_app.hpp b/firmware/application/apps/lge_app.hpp
index 0581b9bf8..2fdea1208 100644
--- a/firmware/application/apps/lge_app.hpp
+++ b/firmware/application/apps/lge_app.hpp
@@ -25,6 +25,7 @@
 #include "ui_navigation.hpp"
 #include "ui_transmitter.hpp"
 #include "ui_font_fixed_8x16.hpp"
+#include "rfm69.hpp"
 
 #include "message.hpp"
 #include "transmitter_model.hpp"
@@ -50,27 +51,77 @@ private:
 	
 	tx_modes tx_mode = IDLE;
 	
+    RFM69 rfm69 { 5, 0x2DD4, true, true };
+    
 	uint32_t frame_size { 0 };
 	uint32_t repeats { 0 };
 	uint32_t channel_index { 0 };
+	std::string pseudo { "ABCDEF" };
 	
 	rf::Frequency channels[3] = { 868067000, 868183000, 868295000 };
 
 	void start_tx();
 	void stop_tx();
-	void generate_frame();
+	
+	void generate_lge_frame(const uint8_t command, std::vector<uint8_t>& data) {
+		generate_lge_frame(command, 0xFFFF, 0xFFFF, data);
+	}
+	void generate_lge_frame(const uint8_t command, const uint16_t address_a, const uint16_t address_b, std::vector<uint8_t>& data);
+	void generate_frame_pseudo();
+	void generate_frame_equipe();
+	void generate_frame_broadcast_pseudo();
+	void generate_frame_start();
+	void generate_frame_gameover();
+	
 	void on_tx_progress(const uint32_t progress, const bool done);
 	
 	Labels labels {
-		{ { 7 * 8, 4 * 8 }, "NO FUN ALLOWED !", Color::red() },
-		{ { 11 * 8, 8 * 8 }, "Zone:", Color::light_grey() }
+		{ { 7 * 8, 1 * 8 }, "NO FUN ALLOWED !", Color::red() },
+		{ { 4 * 8, 4 * 8 }, "Trame:", Color::light_grey() },
+		{ { 4 * 8, 6 * 8 }, "Salle:", Color::light_grey() },
+		{ { 14 * 8, 6 * 8 }, "Texte:", Color::light_grey() },
+		{ { 3 * 8, 8 * 8 }, "Equipe:", Color::light_grey() },
+		{ { 3 * 8, 10 * 8 }, "Joueur:", Color::light_grey() }
 	};
 	
-	NumberField field_zone {
-		{ 16 * 8, 8 * 8 },
+	OptionsField options_trame {
+		{ 10 * 8, 4 * 8 },
+		16,
+		{
+			{ "Set pseudo", 0 },
+			{ "Set equipe", 1 },
+			{ "Broadcast pseudo", 2 },
+			{ "Start", 3 },
+			{ "Game over", 4 }
+		}
+	};
+	
+	NumberField field_salle {
+		{ 10 * 8, 6 * 8 },
+		1,
+		{ 1, 2 },
+		1,
+		'0'
+	};
+	
+	Button button_texte {
+		{ 14 * 8, 8 * 8, 16 * 8, 3 * 8 },
+		"ABCDEF"
+	};
+	
+	NumberField field_equipe {
+		{ 10 * 8, 8 * 8 },
 		1,
 		{ 1, 6 },
-		16,
+		1,
+		'0'
+	};
+	
+	NumberField field_joueur {
+		{ 10 * 8, 10 * 8 },
+		2,
+		{ 1, 50 },
+		1,
 		'0'
 	};
 	
@@ -80,13 +131,8 @@ private:
 		"All channels"
 	};
 	
-	Text text_messagea {
-		{ 0 * 8, 10 * 16, 30 * 8, 16 },
-		""
-	};
-	Text text_messageb {
-		{ 0 * 8, 11 * 16, 30 * 8, 16 },
-		""
+	Console console {
+		{ 0, 18 * 8, 30 * 8, 7 * 16 }
 	};
 	
 	TransmitterView tx_view {
diff --git a/firmware/application/apps/ui_adsb_tx.cpp b/firmware/application/apps/ui_adsb_tx.cpp
index 49e847de1..5054f258d 100644
--- a/firmware/application/apps/ui_adsb_tx.cpp
+++ b/firmware/application/apps/ui_adsb_tx.cpp
@@ -134,10 +134,10 @@ ADSBCallsignView::ADSBCallsignView(
 	button_callsign.on_select = [this, &nav](Button&) {
 		text_prompt(
 			nav,
-			&callsign,
+			callsign,
 			8,
-			[this](std::string* s) {
-				button_callsign.set_text(*s);
+			[this](std::string& s) {
+				button_callsign.set_text(s);
 			}
 		);
 	};
diff --git a/firmware/application/apps/ui_aprs_tx.cpp b/firmware/application/apps/ui_aprs_tx.cpp
index 63aa1cf98..efdb916de 100644
--- a/firmware/application/apps/ui_aprs_tx.cpp
+++ b/firmware/application/apps/ui_aprs_tx.cpp
@@ -99,10 +99,10 @@ APRSTXView::APRSTXView(NavigationView& nav) {
 	button_set.on_select = [this, &nav](Button&) {
 		text_prompt(
 			nav,
-			&payload,
+			payload,
 			30,
-			[this](std::string* s) {
-				text_payload.set(*s);
+			[this](std::string& s) {
+				text_payload.set(s);
 			}
 		);
 	};
diff --git a/firmware/application/apps/ui_fileman.cpp b/firmware/application/apps/ui_fileman.cpp
index 021c628e2..d5a1edf6b 100644
--- a/firmware/application/apps/ui_fileman.cpp
+++ b/firmware/application/apps/ui_fileman.cpp
@@ -237,8 +237,8 @@ FileLoadView::FileLoadView(
 }
 
 void FileManagerView::on_rename(NavigationView& nav) {
-	text_prompt(nav, &name_buffer, max_filename_length, [this](std::string * buffer) {
-		rename_file(get_selected_path(), *buffer);
+	text_prompt(nav, name_buffer, max_filename_length, [this](std::string& buffer) {
+		rename_file(get_selected_path(), buffer);
 		load_directory_contents(current_path);
 		refresh_list();
 	});
@@ -298,10 +298,8 @@ FileManagerView::FileManagerView(
 	button_new_dir.on_select = [this, &nav](Button&) {
 		name_buffer.clear();
 		
-		text_prompt(nav, &name_buffer, max_filename_length, [this](std::string * buffer) {
-			std::string path_str = *buffer;
-			
-			make_new_directory(current_path.string() + '/' + path_str);
+		text_prompt(nav, name_buffer, max_filename_length, [this](std::string& buffer) {
+			make_new_directory(current_path.string() + '/' + buffer);
 			load_directory_contents(current_path);
 			refresh_list();
 		});
diff --git a/firmware/application/apps/ui_freqman.cpp b/firmware/application/apps/ui_freqman.cpp
index 9587d3387..1813eb812 100644
--- a/firmware/application/apps/ui_freqman.cpp
+++ b/firmware/application/apps/ui_freqman.cpp
@@ -146,8 +146,8 @@ void FrequencySaveView::save_current_file() {
 }
 
 void FrequencySaveView::on_save_name() {
-	text_prompt(nav_, &desc_buffer, 28, [this](std::string * buffer) {
-		database.push_back({ value_, 0, *buffer, SINGLE });
+	text_prompt(nav_, desc_buffer, 28, [this](std::string& buffer) {
+		database.push_back({ value_, 0, buffer, SINGLE });
 		save_current_file();
 	});
 }
@@ -249,17 +249,17 @@ void FrequencyManagerView::on_edit_freq(rf::Frequency f) {
 }
 
 void FrequencyManagerView::on_edit_desc(NavigationView& nav) {
-	text_prompt(nav, &desc_buffer, 28, [this](std::string * buffer) {
-		database[menu_view.highlighted_index()].description = *buffer;
+	text_prompt(nav, desc_buffer, 28, [this](std::string& buffer) {
+		database[menu_view.highlighted_index()].description = buffer;
 		refresh_list();
 		save_freqman_file(file_list[categories[current_category_id].second], database);
 	});
 }
 
 void FrequencyManagerView::on_new_category(NavigationView& nav) {
-	text_prompt(nav, &desc_buffer, 8, [this](std::string * buffer) {
+	text_prompt(nav, desc_buffer, 8, [this](std::string& buffer) {
 		File freqman_file;
-		create_freqman_file(*buffer, freqman_file);
+		create_freqman_file(buffer, freqman_file);
 	});
 	populate_categories();
 	refresh_list();
diff --git a/firmware/application/apps/ui_lcr.cpp b/firmware/application/apps/ui_lcr.cpp
index fb2a6f6a2..0944fbe65 100644
--- a/firmware/application/apps/ui_lcr.cpp
+++ b/firmware/application/apps/ui_lcr.cpp
@@ -149,10 +149,10 @@ void LCRView::start_tx(const bool scan) {
 void LCRView::on_button_set_am(NavigationView& nav, int16_t button_id) {
 	text_prompt(
 		nav,
-		&litteral[button_id],
+		litteral[button_id],
 		7,
-		[this, button_id](std::string* buffer) {
-			texts[button_id].set(*buffer);
+		[this, button_id](std::string& buffer) {
+			texts[button_id].set(buffer);
 		});
 }
 
@@ -227,10 +227,10 @@ LCRView::LCRView(NavigationView& nav) {
 	button_set_rgsb.on_select = [this, &nav](Button&) {
 		text_prompt(
 			nav,
-			&rgsb,
+			rgsb,
 			4,
-			[this](std::string* buffer) {
-				button_set_rgsb.set_text(*buffer);
+			[this](std::string& buffer) {
+				button_set_rgsb.set_text(buffer);
 			});
 	};
 	
diff --git a/firmware/application/apps/ui_morse.cpp b/firmware/application/apps/ui_morse.cpp
index 2f1ae9214..1ccb24bb4 100644
--- a/firmware/application/apps/ui_morse.cpp
+++ b/firmware/application/apps/ui_morse.cpp
@@ -70,7 +70,7 @@ static msg_t ookthread_fn(void * arg) {
 }
 
 void MorseView::on_set_text(NavigationView& nav) {
-	text_prompt(nav, &buffer, 28);
+	text_prompt(nav, buffer, 28);
 }
 
 void MorseView::focus() {
diff --git a/firmware/application/apps/ui_pocsag_tx.cpp b/firmware/application/apps/ui_pocsag_tx.cpp
index e7c191792..ae57acad4 100644
--- a/firmware/application/apps/ui_pocsag_tx.cpp
+++ b/firmware/application/apps/ui_pocsag_tx.cpp
@@ -114,7 +114,7 @@ void POCSAGTXView::paint(Painter&) {
 }
 
 void POCSAGTXView::on_set_text(NavigationView& nav) {
-	text_prompt(nav, &buffer, 30);
+	text_prompt(nav, buffer, 30);
 }
 
 POCSAGTXView::POCSAGTXView(
diff --git a/firmware/application/apps/ui_rds.cpp b/firmware/application/apps/ui_rds.cpp
index b81eca091..e62e15294 100644
--- a/firmware/application/apps/ui_rds.cpp
+++ b/firmware/application/apps/ui_rds.cpp
@@ -66,10 +66,10 @@ RDSPSNView::RDSPSNView(
 	button_set.on_select = [this, &nav](Button&) {
 		text_prompt(
 			nav,
-			&PSN,
+			PSN,
 			8,
-			[this](std::string* s) {
-				text_psn.set(*s);
+			[this](std::string& s) {
+				text_psn.set(s);
 			}
 		);
 	};
@@ -91,10 +91,10 @@ RDSRadioTextView::RDSRadioTextView(
 	button_set.on_select = [this, &nav](Button&){
 		text_prompt(
 			nav,
-			&radiotext,
+			radiotext,
 			28,
-			[this](std::string* s) {
-				text_radiotext.set(*s);
+			[this](std::string& s) {
+				text_radiotext.set(s);
 			}
 		);
 	};
diff --git a/firmware/application/rfm69.cpp b/firmware/application/rfm69.cpp
new file mode 100644
index 000000000..0978098d4
--- /dev/null
+++ b/firmware/application/rfm69.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2017 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2019 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 "rfm69.hpp"
+#include "crc.hpp"
+#include "portapack_shared_memory.hpp"
+
+uint32_t RFM69::gen_frame(std::vector<uint8_t>& payload) {
+	CRC<16> crc { 0x1021, 0x1D0F, 0xFFFF };
+	std::vector<uint8_t> frame { };
+	uint8_t byte_out = 0;
+	
+	// Preamble
+	// Really is 0xAA but the RFM69 skips the very last bit (bug ?)
+	// so the whole preamble is shifted right to simulate that
+	frame.insert(frame.begin(), num_preamble_, 0x55);
+	
+	// Sync word
+	frame.push_back(sync_word_ >> 8);
+	frame.push_back(sync_word_ & 0xFF);
+	
+	// Payload length
+	payload.insert(payload.begin(), payload.size());
+	
+	crc.process_bytes(payload.data(), payload.size());
+	
+	if (CRC_) {
+		payload.push_back(crc.checksum() >> 8);
+		payload.push_back(crc.checksum() & 0xFF);
+	}
+	
+	// Manchester-encode payload
+	if (manchester_) {
+		for (auto byte : payload) {
+			for (uint32_t b = 0; b < 8; b++) {
+				byte_out <<= 2;
+				
+				if (byte & 0x80)
+					byte_out |= 0b10;
+				else
+					byte_out |= 0b01;
+				
+				if ((b & 3) == 3)
+					frame.push_back(byte_out);
+				
+				byte <<= 1;
+			}
+		}
+	} else {
+		frame.insert(frame.end(), payload.begin(), payload.end());
+	}
+	
+	memcpy(shared_memory.bb_data.data, frame.data(), frame.size());
+	
+	// Copy for baseband
+	return frame.size();
+}
diff --git a/firmware/application/rfm69.hpp b/firmware/application/rfm69.hpp
new file mode 100644
index 000000000..f1053230e
--- /dev/null
+++ b/firmware/application/rfm69.hpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2017 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef __RFM69_H__
+#define __RFM69_H__
+
+#include <cstdint>
+#include <vector>
+
+#include "utility.hpp"
+
+class RFM69 {
+public:
+    RFM69(const uint8_t num_preamble, const uint16_t sync_word, const bool CRC, const bool manchester)
+        : num_preamble_(num_preamble), sync_word_(sync_word), CRC_(CRC), manchester_(manchester)
+    { }
+	//~RFM69();
+	
+	void set_sync_word(const uint16_t sync_word) {
+		sync_word_ = sync_word;
+	};
+	void set_data_config(const bool CRC, const bool manchester) {
+		CRC_ = CRC;
+		manchester_ = manchester;
+	};
+	void set_num_preamble(const uint8_t num_preamble) {
+		num_preamble_ = num_preamble;
+	};
+	
+	uint32_t gen_frame(std::vector<uint8_t>& payload);
+
+private:
+	uint8_t num_preamble_ { 5 };
+	uint16_t sync_word_ { 0x2DD4 };
+	bool CRC_ { true };
+	bool manchester_ { false };
+};
+
+#endif/*__RFM69_H__*/
diff --git a/firmware/application/ui/ui_alphanum.cpp b/firmware/application/ui/ui_alphanum.cpp
index f9c2c98bb..7b77eb8df 100644
--- a/firmware/application/ui/ui_alphanum.cpp
+++ b/firmware/application/ui/ui_alphanum.cpp
@@ -36,7 +36,7 @@ void AlphanumView::paint(Painter&) {
 
 AlphanumView::AlphanumView(
 	NavigationView& nav,
-	std::string * str,
+	std::string& str,
 	size_t max_length
 ) : TextEntryView(nav, str, max_length)
 {
diff --git a/firmware/application/ui/ui_alphanum.hpp b/firmware/application/ui/ui_alphanum.hpp
index 0af8acc24..08b6e2508 100644
--- a/firmware/application/ui/ui_alphanum.hpp
+++ b/firmware/application/ui/ui_alphanum.hpp
@@ -33,7 +33,7 @@ namespace ui {
 
 class AlphanumView : public TextEntryView {
 public:
-	AlphanumView(NavigationView& nav, std::string * str, size_t max_length);
+	AlphanumView(NavigationView& nav, std::string& str, size_t max_length);
 	
 	AlphanumView(const AlphanumView&) = delete;
 	AlphanumView(AlphanumView&&) = delete;
diff --git a/firmware/application/ui/ui_textentry.cpp b/firmware/application/ui/ui_textentry.cpp
index fe478546b..e4e008c11 100644
--- a/firmware/application/ui/ui_textentry.cpp
+++ b/firmware/application/ui/ui_textentry.cpp
@@ -29,10 +29,10 @@ using namespace portapack;
 
 namespace ui {
 
-void text_prompt(NavigationView& nav, std::string * str, const size_t max_length, const std::function<void(std::string *)> on_done) {
+void text_prompt(NavigationView& nav, std::string& str, const size_t max_length, const std::function<void(std::string&)> on_done) {
 	//if (persistent_memory::ui_config_textentry() == 0) {
 		auto te_view = nav.push<AlphanumView>(str, max_length);
-		te_view->on_changed = [on_done](std::string * value) {
+		te_view->on_changed = [on_done](std::string& value) {
 			if (on_done)
 				on_done(value);
 		};
@@ -46,38 +46,40 @@ void text_prompt(NavigationView& nav, std::string * str, const size_t max_length
 }
 
 void TextEntryView::update_text() {
-	if (_cursor_pos <= 28)
-		text_input.set(' ' + *_str + std::string(_max_length - _str->length(), ' '));
+	if (cursor_pos < 30)
+		text_input.set(_str + std::string(_max_length - _str.length(), ' '));
 	else
-		text_input.set('<' + _str->substr(_cursor_pos - 28, 28));
+		text_input.set('<' + _str.substr(cursor_pos - 29, 29));
 		
 	draw_cursor();
 }
 
 void TextEntryView::char_delete() {
-	if (!_cursor_pos) return;
+	if (!cursor_pos) return;
 	
-	_cursor_pos--;
-	_str->replace(_cursor_pos, 1, 1, 0);
+	cursor_pos--;
+	_str.resize(cursor_pos);
 }
 
 void TextEntryView::char_add(const char c) {
-	if (_cursor_pos >= _max_length) return;
+	if (cursor_pos >= _max_length) return;
 	
-	_str->replace(_cursor_pos, 1, 1, c);
-	_cursor_pos++;
+	_str += c;
+	cursor_pos++;
 }
 
 void TextEntryView::draw_cursor() {
 	Point draw_pos;
 	
-	draw_pos = { text_input.screen_rect().location().x() + 8 + std::min((Coord)_cursor_pos, (Coord)28) * 8,
+	draw_pos = { text_input.screen_rect().location().x() + std::min((Coord)cursor_pos, (Coord)28) * 8,
 					text_input.screen_rect().location().y() + 16 };
 	
+	// Erase previous
 	display.fill_rectangle(
 		{ { text_input.screen_rect().location().x(), draw_pos.y() }, { text_input.screen_rect().size().width(), 4 } },
 		Color::black()
 	);
+	// Draw new
 	display.fill_rectangle(
 		{ draw_pos, { 8, 4 } },
 		Color::white()
@@ -90,17 +92,19 @@ void TextEntryView::focus() {
 
 TextEntryView::TextEntryView(
 	NavigationView& nav,
-	std::string * str,
+	std::string& str,
 	size_t max_length
 ) : _str(str),
 	_max_length(max_length)
 {
 	
 	// Trim from right
-	_str->erase(std::find_if(_str->rbegin(), _str->rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), _str->end());
-	_cursor_pos = _str->length();
+	//_str->erase(std::find_if(_str->rbegin(), _str->rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), _str->end());
+	if (_str.length() > _max_length)
+		_str.resize(_max_length);
+	_str.reserve(_max_length);
 	
-	_str->reserve(_max_length);
+	cursor_pos = _str.length();
 	
 	add_children({
 		&text_input,
@@ -108,7 +112,7 @@ TextEntryView::TextEntryView(
 	});
 	
 	button_ok.on_select = [this, &nav](Button&) {
-		_str->substr(0, _cursor_pos);
+		_str.resize(cursor_pos);
 		if (on_changed)
 			on_changed(_str);
 		nav.pop();
diff --git a/firmware/application/ui/ui_textentry.hpp b/firmware/application/ui/ui_textentry.hpp
index 6e311a469..9cd6f519a 100644
--- a/firmware/application/ui/ui_textentry.hpp
+++ b/firmware/application/ui/ui_textentry.hpp
@@ -30,13 +30,13 @@ namespace ui {
 
 class TextEntryView : public View {
 public:
-	std::function<void(std::string*)> on_changed { };
+	std::function<void(std::string&)> on_changed { };
 	
 	void focus() override;
 	std::string title() const override { return "Text entry"; };
 	
 protected:
-	TextEntryView(NavigationView& nav, std::string * str, size_t max_length);
+	TextEntryView(NavigationView& nav, std::string& str, size_t max_length);
 	
 	TextEntryView(const TextEntryView&) = delete;
 	TextEntryView(TextEntryView&&) = delete;
@@ -48,9 +48,9 @@ protected:
 	void draw_cursor();
 	void update_text();
 	
-	std::string * _str;
+	std::string& _str;
 	size_t _max_length;
-	uint32_t _cursor_pos { 0 };
+	uint32_t cursor_pos { 0 };
 	
 	Text text_input {
 		{ 0, 0, 240, 16 }
@@ -62,7 +62,7 @@ protected:
 	};
 };
 
-void text_prompt(NavigationView& nav, std::string * str, size_t max_length, const std::function<void(std::string*)> on_done = nullptr);
+void text_prompt(NavigationView& nav, std::string& str, size_t max_length, const std::function<void(std::string&)> on_done = nullptr);
 
 } /* namespace ui */
 
diff --git a/firmware/common/ui_widget.cpp b/firmware/common/ui_widget.cpp
index f46b2bf43..02b9bc02c 100644
--- a/firmware/common/ui_widget.cpp
+++ b/firmware/common/ui_widget.cpp
@@ -590,7 +590,7 @@ void Console::write(std::string message) {
 		for (const auto c : message) {
 			if (escape) {
 				if (c <= 15)
-					pen_color = term_colors[c & 15];
+					pen_color = term_colors[(uint8_t)c];
 				else
 					pen_color = s.foreground;
 				escape = false;