can now flash to eeprom

src/binary.cpp

@@ -33,10 +33,10 @@ unsigned binary::process(std::ostream& dst, const char* path) {
 	return notes_added;
 }
 
-bool binary::process_all(std::string& dst, int argc, char **argv) {
-	if(argc > 2) {
+bool binary::process_all(std::string& dst, int start, int argc, char **argv) {
+	if(argc > start) {
 		std::stringstream ss;
-		for(int i = 2; i < argc; i++) {
+		for(int i = start; i < argc; i++) {
 			binary::process(ss, argv[i]);
 		}
 		binary::finalize(ss);
@@ -44,7 +44,7 @@ bool binary::process_all(std::string& dst, int argc, char **argv) {
 		return true;
 	}
 
-	else if(argc == 2) {
+	else if(argc == start) {
 		dst = std::string(std::istreambuf_iterator<char>(std::cin), std::istreambuf_iterator<char>());
 		return true;
 	}

src/binary.hpp

@@ -6,7 +6,7 @@
 
 namespace binary {
 	unsigned process(std::ostream& dst, const char* path);
-	bool process_all(std::string& dst, int argc, char** argv);
+	bool process_all(std::string& dst, int start, int argc, char** argv);
 	void finalize(std::ostream& dst);
 }
 

src/device.cpp

@@ -2,6 +2,7 @@
 #include "device.hpp"
 
 #include <cassert>
+#include <cstring>
 #include <fcntl.h>
 #include <termios.h>
 #include <unistd.h>
@@ -14,8 +15,13 @@ Device::Device(const char* path) {
 
 	cfsetspeed(&tio, B57600);
 	cfmakeraw(&tio);
+	tio.c_cflag |= CRTSCTS;
 
 	assert(tcsetattr(fd, TCSANOW, &tio) == 0);
+
+	char buff[8];
+	read(buff, sizeof(buff));
+	fingerprint_valid = (std::memcmp(buff, "\x19\xc1\x6c\x19\x5b\x6f\xd2\x44", sizeof(buff)) == 0);
 }
 
 Device::~Device() {

src/device.hpp

@@ -8,11 +8,9 @@ struct Device {
 
 	enum Mode {
 		e_none,
-		e_ready,
 		e_local,
-		e_serial,
-		e_read,
-		e_jump,
+		e_stream,
+		e_flash,
 	};
 
 	Device(const char* path);
@@ -32,6 +30,8 @@ struct Device {
 		write(buff, len);
 	}
 
+	bool fingerprint_valid;
+
 private:
 	int fd;
 };

src/header.cpp

@@ -29,7 +29,7 @@ int main(int argc, char** argv) {
 
 	std::string data;
 
-	if(!binary::process_all(data, argc, argv)) {
+	if(!binary::process_all(data, 2, argc, argv)) {
 		std::cerr << "Usage: " << argv[0] << " varname [midifile ...]?\n\n";
 		return 1;
 	}

src/streamer.cpp

@@ -1,6 +1,7 @@
 
 #include "binary.hpp"
 #include "device.hpp"
+#include <cstring>
 #include <iostream>
 #include <ostream>
 #include <string>
@@ -13,17 +14,28 @@ static void display_progress(unsigned long at, unsigned long size) {
 	
 	struct winsize w;
 	ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+	
+	static unsigned long screen_at_last = -1;
+	static unsigned percent_at_last = -1;
+
 	unsigned cols = w.ws_col - 8;
+	unsigned long screen_at = at * cols / size;
+	unsigned percent_at = (at * 100 / size);
+
+	if(screen_at == screen_at_last && percent_at == percent_at_last) {
+		return;
+	}
+
+	screen_at_last = screen_at;
+	percent_at_last = percent_at;
 	
 	std::cout << "[";
 
-	unsigned long j = at * cols / size;
-
 	for(unsigned long i = 0; i < cols; i++) {
 		char ch;
-		if(i > j) {
+		if(i > screen_at) {
 			ch = ' ';
-		} else if(i == j) {
+		} else if(i == screen_at) {
 			ch = '>';
 		} else {
 			ch = '=';
@@ -31,59 +43,51 @@ static void display_progress(unsigned long at, unsigned long size) {
 		std::cout << ch;
 	}
 
-	std::cout << "] " << (at * 100 / size) << "%\r" << std::flush;
+	std::cout << "] " << percent_at << "%\r" << std::flush;
 }
 
 int main(int argc, char** argv) {
 	std::string data;
 
-	if(!binary::process_all(data, argc, argv)) {
-		std::cerr << "Usage: " << argv[0] << " device [midifile ...]?\n\n";
+	if(argc < 3 || argv[1][0] != '-' || argv[1][1] == '\0' || argv[1][2] != '\0') {
+		goto error_help;
+	}
+
+	Device::Mode mode;
+
+	switch(argv[1][1]) {
+	case 'f':
+		mode = Device::Mode::e_flash;
+		break;
+	case 's':
+		mode = Device::Mode::e_stream;
+		break;
+	default:
+		goto error_help;
+	}
+
+	if(!binary::process_all(data, 3, argc, argv)) {
+error_help:
+		std::cerr << "Usage: " << argv[0] << " -[s|f] device [midifile ...]?\n\n";
 		return 1;
 	}
 
 	std::cout << "loaded: " << data.length() << " bytes" << std::endl;
 
-	unsigned at = 0;
-	Device device(argv[1]);
-	device.put(Device::Mode::e_serial);
+	Device device(argv[2]);
 
-	for(;;) {
-		Device::Mode mode = (Device::Mode)device.get();
-		switch(mode) {
-		default: {
-			std::cout << CLEAR_LINE << "device: unknown (" << mode << ")" << std::endl;
-			break;
-		}
-		case Device::Mode::e_ready: {
-			device.put(Device::Mode::e_serial);
-			std::cout << CLEAR_LINE << "device: ready" << std::endl;
-			break;
-		}
-		case Device::Mode::e_jump: {
-			at = (device.get() & 0xff);
-			at = (at << 8) | (device.get() & 0xff);
-			at = (at << 8) | (device.get() & 0xff);
-			at = (at << 8) | (device.get() & 0xff);
-			break;
-		}
-		case Device::Mode::e_read: {
-			unsigned len = (device.get() & 0xff);
-			if(len + at > data.length()) {
-				unsigned l = data.length() - at;
-				device.write(data.c_str() + at, l);
-				for(int i = 0; i < len - l; i++) {
-					device.put(0);
-				}
-				at += l;
-			} else {
-				device.write(data.c_str() + at, len);
-				at += len;
-			}
-			break;
-		}}
+	if(device.fingerprint_valid) {
+		std::cout << "device: connected" << std::endl;
+	} else {
+		std::cerr << "error: invalid fingerprint" << std::endl;
+		return 1;
+	}
 
-		display_progress(at, data.length());
+	device.put(mode);
+	
+	for(int i = 0; i < data.length(); i++) {
+		device.put(data[i]);
+		display_progress(i, data.length());
 	}
 }