CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Serial communication with dedicated device including
+	- knob and button updates
+	- support for CV as MIDI output inside Musique
+
 ## [0.4.0]
 
 ### Added

Makefile

@@ -18,11 +18,6 @@ include scripts/test.mk
 bin/$(Target): bin/$(os)/$(Target)
 	ln -f $< $@
 
-# http://www.music.mcgill.ca/~gary/rtmidi/#compiling
-bin/$(os)/rtmidi.o: lib/rtmidi/RtMidi.cpp lib/rtmidi/RtMidi.h
-	@echo "CXX $@"
-	@$(CXX) $< -c -O2 -o $@ $(CPPFLAGS) -std=c++20
-
 doc: Doxyfile musique/*.cc musique/*.hh
 	doxygen
 
@@ -57,3 +52,4 @@ musique.zip:
 
 $(shell mkdir -p $(subst musique/,bin/$(os)/,$(shell find musique/* -type d)))
 $(shell mkdir -p $(subst musique/,bin/$(os)/debug/,$(shell find musique/* -type d)))
+$(shell mkdir -p bin/$(os)/serial)

README.md

@@ -31,6 +31,7 @@ Copy [editor/vscode-musique](editor/vscode-musique) directory to `<user home>/.v
 - Creator of [tl::expected](https://github.com/TartanLlama/expected) - [Sy Brand](https://sybrand.ink/)
 - Creator of [bestline](https://github.com/jart/bestline) - [Justine Tunney](https://justinetunney.com/)
 - Creator of [rtmidi](https://github.com/thestk/rtmidi/) - [Gary P. Scavone](http://www.music.mcgill.ca/~gary/)
+- Creators of [serial](https://github.com/wjwwood/serial) - [William Woodall](https://github.com/wjwwood/) and [John Harrison](https://github.com/ashgti)
 - Creators of [link](https://github.com/Ableton/link)
 
 and all contributors that created libraries above.

config.mk

@@ -13,7 +13,7 @@ VERSION := $(MAJOR).$(MINOR).$(PATCH)-dev+$(COMMIT)
 
 CXXFLAGS:=$(CXXFLAGS) -std=c++20 -Wall -Wextra -Werror=switch -Werror=return-type -Werror=unused-result
 CPPFLAGS:=$(CPPFLAGS) -DMusique_Version='"$(VERSION)"' \
-	-Ilib/expected/ -I. -Ilib/bestline/ -Ilib/rtmidi/ -Ilib/link/include -Ilib/asio/include/
+	-Ilib/expected/ -I. -Ilib/bestline/ -Ilib/rtmidi/ -Ilib/link/include -Ilib/asio/include/ -Ilib/serial/include/
 LDFLAGS=-flto
 LDLIBS= -lpthread
 

hardware/README.md

@@ -0,0 +1,155 @@
+# Instrukcja  konstrukcji urządzenia MusiqueBox
+
+MusiqueBox jest urządzeniem towarzyszącym dla języka Musique. Może zapewnić on kontrolki do użycia w języku - przykładowo pokrętła, których wartość można odczytać w języku, a ich stany użyć w kodzie. Urządzenie to może również pozwolić na sterowanie instrumentami obsługującymi Control Voltage przez język.
+
+MusiqueBox jest otwarty jak reszta projektu Musique - posiadając umiejętności programistyczne można go modyfikować dla własnych potrzeb. W tym poradniku opisana zostanie konstrukcja urządzenia posiadającego dwa pokrętła oraz trzy przyciski przekazujące swoje stany do interpretera Musique, oraz posiadającego 2 wyjścia analogowe i jedno 2-stanowe cyfrowe do obsługi urządzenia sterowanego przez CV - jednak zależnie od potrzeb użytkownika, część z tych rzeczy można pominąć a urządzenie wciąż będzie działać.
+
+Do zbudowania przynajmniej podstawowej wersji urządzenia potrzeba podstawowej umiejętności łączenia komponentów elektronicznych na płytce stykowej, oraz rozpoznawania wyprowadzeń w podstawowych komponentach elektronicznych i układach scalonych. Do budowy układu do obsługi urządzeń sterowanych napięciem zalecane jest jednak posiadanie większego doświadczenia z elektroniką.
+
+## Wymagane komponenty
+
+Urządzenie MusiqueBox bazuje na chwilę obecną na płytce rozwojowej STM32 NUCLEO L476-RG. Płytka ta jest programowalna z poziomu komputera osobistego przez złącze USB, oraz posiada wygodnie wyprowadzone piny do podłączenia komponentów. Bazowe elementy potrzebne do zbudowania urządzenia to:
+- płytka rozwojowa STM32 NUCLEO L476-RG
+- przewód USB/Mini USB pozwalający podłączyć urządzenie do komputera z intepreterem
+- płytka stykowa oraz przewody połączeniowe do podłączenia komponentów składających się na urządzenie
+
+Kontrolki do sterowania wartościami w Musique mogą być dobrane przez użytkownika. Na rzecz tego poradnika przedstawimy sposób konstrukcji urządzenia z trzema przyciskami i dwoma pokrętłami, ale możliwe jest podłączenie innych rodzajów podstawowych kontrolek. Przykładowo można zastąpić pokrętła suwakami - obie z tych rzeczy zwykle działają w oparciu o potencjometr, więc je można podłączyć do urządzenia analogicznie do siebie. Do zbudowania kontrolek dla tego projektu należy zaopatrzyć się w:
+- 3x mikroprzełącznik z pinami do montażu na płytce stykowej
+- 2x potencjometr o maksymalnym oporze 100kΩ
+- 2x rezystor o oporze 220kΩ
+
+Aby urządzenie rozszerzyć o układ sterujący instrumentem sterowanym CV, potrzebne będą również:
+- wzmacniacz operacyjny TL072CP (lub podobny) w obudowie DIP-8
+- 2x potencjometr montażowy o maksymalnym oporze 10kΩ
+- 2x rezystor o oporze 10kΩ
+- złącza i przewody odpowiednie do wyprowadzenia napięć sterujących do instrumentu, oraz podłączenia zasilania instrumentu do MusiqueBoxa 
+    - dla syntezatorów modularnych typu Eurorack (oraz wielu innych instrumentów sterowanych CV) będą to złącza Minijack TS, aczkolwiek w tym przykładzie złącza będą przedstawione jako rzędy pinów - 3 dla zasilania, oraz 3 dla napięć sterujących
+    - potrzebna jest możliwość wyprowadzenia napięć dodatniego i ujemnego, ale również uziemienia z intrumentu muzycznego
+
+## Konstrukcja urządzenia
+MusiqueBox bazuje na chwilę obecną na płytce rozwojowej STM32 NUCLEO L476-RG. Stanowi ona centralny element urządzenia; mikrokontroler na płytce jest łatwo programowalny przez zapewniane przez producenta programy komputerowe. W celu konstrukcji MusiqueBoxa należy tę płytkę zaprogramować, a następnie podłączyć odpowiednie układy do portów na płytce.
+
+### Programowanie płytki NUCLEO
+W pierwszej kolejności do działania MusiqueBoxa należy zaprogramować płytkę NUCLEO na której urządzenie bazuje...
+[TODO]
+
+### Podłączenie układów do płytki
+![](./MusiqueBox_bb.png)
+Powyższy rysunek ilustruje sposób konstrukcji odpowiednich układów na płytce stykowej i podłączenia ich do płytki rozwojowej NUCLEO. W repozytorium zamieszczony jest również schemat elektroniczny urządzenia. 
+
+W ramach tego poradnika konstrukcja przedstawiona będzie głównie w postaci jak rysunek powyżej. 
+
+Duża część z wyprowadzeń na płytce NUCLEO ma więcej niż jedno oznaczenie - jeden rodzaj oznaczeń odpowiada oznaczeniom portów na mikrokontrolerze STM32L476RG, a drugi odpowiada oznaczeniom obecnym na płytkach rozwojowych Arduino UNO. Na zawartych w tym poradniku infografikach zastosowane są oznaczenia odpowiadające Arduino UNO i opisy słowne również odnoszą się do tej wersji oznaczeń.
+
+### Układ wejścia
+W chwili obecnej program MusiqueBoxa zapewnia wsparcie dla maksymalnie trzech przycisków, oraz maksymalnie dwóch pokręteł analogowych. Możliwe jest podłączenie mniejszej ilości kontrolek.
+
+Każdy z przycisków należy podłączyć przez połączenie jednego z wyprowadzeń z masą (wyprowadzenie GND na płytce), a drugiego - do odpowiedniego wyprowadzenia cyfrowego. Do podłączenia przycisków na płytce dostępne są wyprowadzenia D7, D8 oraz D11.
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox-examples_bb-1.png"
+    alt="Krok 1">
+    <figcaption>Krok 1. <br>Podłączenie przycisków do masy</figcaption>
+</figure>
+
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox-examples_bb-2.png"
+    alt="Krok 2">
+    <figcaption>Krok 2. <br>Podłączenie przycisków do wyprowadzeń cyfrowych</figcaption>
+</figure>
+
+Aby podłączyć do urządzenia potencjometr, jedno z jego skrajnych wyprowadzeń należy podłączyć do masy, a drugie - szeregowo poprzez rezystor 220kΩ - do styku 3V3 na płytce NUCLEO. Środkowe wyprowadzenie potencjometru należy podłączyć do jednego z dwóch dostępnych wejść analogowych - są to piny oznaczone jako A4 i A5.
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox-examples_bb-3.png"
+    alt="Krok 3">
+    <figcaption>Krok 3. <br>Podłączenie potencjometrów do masy</figcaption>
+</figure>
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox-examples_bb-4.png"
+    alt="Krok 4">
+    <figcaption>Krok 4. <br>Podłączenie potencjometrów do napięcia 3V</figcaption>
+</figure>
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox-examples_bb-5.png"
+    alt="Krok 5">
+    <figcaption>Krok 5. <br>Podłączenie potencjometrów do wyprowadzeń analogowych</figcaption>
+</figure>
+
+### Układ sterujący CV
+
+Pospolite instrumenty sterowane napięciem zasilane oraz sterowane są napięciami z zakresu 0 do 12V. W celu zapewnienia takich napięć na wyjściu MusiqueBoxa konieczne jest zastosowanie wzmacniacza operacyjnego aby odizolować napięcia na płytce rozwojowej od napięć instrumentu, oraz aby rozszerzyć zakres napięć wyjściowych. 
+
+Konstrukcja tego układu wygląda następująco:
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox-amp_schem.png"
+    alt="Schemat wzmacniacza">
+    <figcaption>Schemat wzmacniacza</figcaption>
+</figure>
+
+Sugerowane jest zastosowanie układu TL072CP, składającego się z dwóch zintegrowanych wzmacniaczy operacyjnych. W celu konstrukcji układu sterowania CV należy wyprowadzić piny 4 oraz 8 - odpowiednio napięcie negatywne i pozytywne - na zewnętrzne porty. Są to piny zasilające wzmacniacz, i muszą zostać one podłączone później do zasilania **instrumentu** w celu prawidłowego działania. Wyprowadzić należy również na podobny port masę MusiqueBoxa - musi ono zostać sparowane z masą instrumentu.
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox_bb-amp-example-1.png"
+    alt="Krok 1">
+    <figcaption>Krok 1. <br>Wyprowadzenie pinów zasilania</figcaption>
+</figure>
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox_bb-amp-example-2.png"
+    alt="Krok 2">
+    <figcaption>Krok 2. <br>Wyprowadzenie masy</figcaption>
+</figure>
+
+Piny 2 i 6 układu TL072CP należy podłączyć do masy rezystorami 10kΩ, oraz każdy z nich podłączyć również przez potencjometr montażowy 10kΩ - odpowiednio do pinów 1 oraz 7 tego samego układu. Piny 1 oraz 7 będą również wyjściami napięcia sterującego, należy je wyprowadzić na porty zewnętrzne, podobnie do portów zasilania omówionych nieco wyżej. Napięcie sterujące będzie kontrolowane przez piny A2 oraz D13 na płytce NUCLEO. Te dwa wyprowadzenia należy zewrzeć odpowiednio z pinami 3 oraz 5 wzmacniacza. Napięcie wyjściowe będzie odpowiadało napięciom na tych pinach, ale będzie wzmocnione i odizolowane od instrumentu przez wzmacniacz. 
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox_bb-amp-example-3.png"
+    alt="Krok 3">
+    <figcaption>Krok 3. <br>Rezystory 10kΩ</figcaption>
+</figure>
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox_bb-amp-example-4.png"
+    alt="Krok 4">
+    <figcaption>Krok 4. <br>Potencjometry montażowe 10kΩ</figcaption>
+</figure>
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox_bb-amp-example-5.png"
+    alt="Krok 5">
+    <figcaption>Krok 5. <br>Wyprowadzenie pinów z napięciem sterującym</figcaption>
+</figure>
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox_bb-amp-example-6.png"
+    alt="Krok 6">
+    <figcaption>Krok 6. <br>Podłączenie pinów sterujących z płytki</figcaption>
+</figure>
+
+Wzmocnienie napięcia przez wzmacniacz w powyższym układzie kontrolowane jest przez potencjometry montażowe - zależnie od oporu przez nie ustawionego, zakres napięć można zwiększyć maksymalnie do 10V, ale nie powyżej napięcia zapewnionego przez instrument. Po montażu urządzenia i wgraniu oprogramowania, należy je podłączyć do instrumentu i w razie potrzeby doregulować opór potencjometrów, tak, aby odpowiednio nastroić urządzenie.
+
+Dodatkowo, aby grać instrumentem sterowanym napięciem potrzebny jest cyfrowy sygnał GATE. W naszej implementacji sygnał GATE obsługiwany jest bezpośrednio przez pin D12 płytki i również należy go wyprowadzić na zewnętrzny port.
+
+<figure>
+    <img 
+    src="./examples/MusiqueBox_bb-amp-example-7.png"
+    alt="Krok 7">
+    <figcaption>Krok 7. <br>Wyprowadzenie pinu GATE</figcaption>
+</figure>

hardware/code/Core/Src/main.c

@@ -0,0 +1,601 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : main.c
+  * @brief          : Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2022 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN PTD */
+
+/* USER CODE END PTD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+#define min(a,b) (((a) < (b)) ? (a) : (b))
+#define max(a,b) (((a) > (b)) ? (a) : (b))
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+ADC_HandleTypeDef hadc1;
+
+DAC_HandleTypeDef hdac1;
+
+UART_HandleTypeDef huart2;
+
+/* USER CODE BEGIN PV */
+
+uint32_t adc_vals_old[2] = {};
+uint32_t adc_vals[2];
+
+uint8_t rx = 0;
+uint8_t rx_buf[128] = {0};
+int tail = 0, head = 0;
+
+uint8_t notes[128] = {0};
+uint8_t note_priority = 1;
+uint32_t tones[] = {1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		/*c4*/ 1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
+		1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065};
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+void SystemClock_Config(void);
+static void MX_GPIO_Init(void);
+static void MX_USART2_UART_Init(void);
+static void MX_ADC1_Init(void);
+static void MX_DAC1_Init(void);
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* Private user code ---------------------------------------------------------*/
+/* USER CODE BEGIN 0 */
+
+uint32_t endian_swap(uint32_t value)
+{
+	_Static_assert(sizeof(uint32_t) == 4, "I can't imagine world where this is false");
+	char buf[sizeof(uint32_t)];
+	memcpy(buf, &value, sizeof(value));
+	// swap(buf[0], buf[3])
+	uint32_t t = buf[0]; buf[0] = buf[3]; buf[3] = t;
+	// swap(buf[1], buf[2])
+	t = buf[1];	buf[1] = buf[2]; buf[2] = t;
+	memcpy(&value, buf, sizeof(value));
+	return value;
+}
+
+void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
+{
+	if (GPIO_Pin == IT1_Pin) {
+		uint8_t val = 0b10000000;
+		//HAL_UART_Transmit(&huart2, (uint8_t *) &val, sizeof(val), HAL_MAX_DELAY);
+
+		if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_9)){
+			// falling
+			printf("D%04lu\n", 0);
+		} else{
+			// rising
+			printf("D%04lu\n", 4095);
+		}
+	}
+
+	if (GPIO_Pin == IT2_Pin) {
+		uint8_t val = 0b10000001;
+		//HAL_UART_Transmit(&huart2, (uint8_t *) &val, sizeof(val), HAL_MAX_DELAY);
+		if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_8)){
+			// falling
+			printf("C%04lu\n", 0);
+		} else{
+			// rising
+			printf("C%04lu\n", 4095);
+		}
+	}
+
+	if (GPIO_Pin == IT3_Pin) {
+		uint8_t val = 0b10000010;
+		//HAL_UART_Transmit(&huart2, (uint8_t *) &val, sizeof(val), HAL_MAX_DELAY);
+		if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_7)){
+			// falling
+			printf("E%04lu\n", 0);
+		} else{
+			// rising
+			printf("E%04lu\n", 4095);
+		}
+	}
+}
+
+int __io_putchar(int ch)
+{
+	if (ch == '\n') {
+		__io_putchar('\r');
+	}
+    HAL_UART_Transmit(&huart2, (uint8_t*)&ch, 1, HAL_MAX_DELAY);
+    return 1;
+}
+
+
+/* USER CODE END 0 */
+
+/**
+  * @brief  The application entry point.
+  * @retval int
+  */
+int main(void)
+{
+  /* USER CODE BEGIN 1 */
+
+  /* USER CODE END 1 */
+
+  /* MCU Configuration--------------------------------------------------------*/
+
+  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
+  HAL_Init();
+
+  /* USER CODE BEGIN Init */
+
+  /* USER CODE END Init */
+
+  /* Configure the system clock */
+  SystemClock_Config();
+
+  /* USER CODE BEGIN SysInit */
+
+  /* USER CODE END SysInit */
+
+  /* Initialize all configured peripherals */
+  MX_GPIO_Init();
+  MX_USART2_UART_Init();
+  MX_ADC1_Init();
+  MX_DAC1_Init();
+  /* USER CODE BEGIN 2 */
+
+
+  // start both DAC channels
+  HAL_DAC_Start(&hdac1, DAC1_CHANNEL_1);
+  HAL_DAC_Start(&hdac1, DAC1_CHANNEL_2);
+
+  // configure built-in ADC
+  HAL_ADCEx_Calibration_Start(&hadc1, ADC_SINGLE_ENDED);
+
+  HAL_UART_Receive_IT(&huart2, &rx, 1);
+  /* USER CODE END 2 */
+
+  /* Infinite loop */
+  /* USER CODE BEGIN WHILE */
+  while (1)
+  {
+	/*int transmit_flag = 0;
+	char adc_chars[sizeof(uint32_t)] = {};
+
+	for(int i = 0; i < 2; i++){
+		HAL_ADC_Start(&hadc1);
+		HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY);
+		adc_vals[i] = HAL_ADC_GetValue(&hadc1);
+		if((adc_vals[i] > adc_vals_old[i] && adc_vals[i] - adc_vals_old[i] > 100) ||
+				(adc_vals[i] < adc_vals_old[i] && adc_vals_old[i] - adc_vals[i] > 100)){
+			printf("NR %d do zmiany\n", i);
+			uint32_t temp = adc_vals[i];
+			adc_vals_old[i] = temp;
+
+			adc_vals[i] = endian_swap(temp);
+			memcpy(adc_chars + (sizeof(uint32_t)*i), &adc_vals[i], sizeof(uint32_t));
+			transmit_flag = 1;
+		}
+
+	}
+
+	if(transmit_flag == 1){
+		//HAL_UART_Transmit(&huart2, (uint8_t *) &adc_chars[0], 2 * sizeof(uint32_t), HAL_MAX_DELAY);
+	}*/
+
+
+	int note_update_flag = 0;
+	if (head != tail){
+		if((rx_buf[tail] & 0b11110000) == 0b10010000){
+			// note on
+			int bytes_available = (head - tail + 128) % 128;
+			if (bytes_available >= 3){
+				// if all 3 bytes available
+				// printf("G%04d\n", rx_buf[tail+1]);
+				notes[rx_buf[tail+1]] = note_priority++;
+				note_update_flag = 1;
+				tail = (tail+3)%128;
+			}
+
+
+		}else if((rx_buf[tail] & 0b11110000) == 0b10000000){
+			// note off
+			int bytes_available = (head - tail + 128) % 128;
+			if (bytes_available >= 3){
+				// if all 3 bytes available
+				// printf("G%04d\n", rx_buf[tail+1]);
+				notes[rx_buf[tail+1]] = 0;
+				note_update_flag = 1;
+				tail = (tail+3)%128;
+			}
+		}else{
+			// anything else
+			// for now drop the data
+			tail = (tail+1)%128;
+		}
+
+		if(note_update_flag){
+			int newest_note = -1;
+			uint8_t max_priority = 0;
+			for(int i = 0; i < 128; i++){
+				if(notes[i] > max_priority){
+					max_priority = notes[i];
+					newest_note = i;
+				}
+			}
+			if(newest_note >= 0){
+				DAC1->DHR12R1 = max(min(tones[newest_note], 4095), 0);
+				HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, GPIO_PIN_SET);
+			}else{
+				HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, GPIO_PIN_RESET);
+			}
+		}
+
+
+		/////////////////////// A //////////////////////
+		/*uint8_t data[3];
+		data[0] = 0b10010000;
+		data[1] = rx_buf[tail];
+		data[2] = 0b01111111;
+		HAL_UART_Transmit(&huart3, &data[0], 3, HAL_MAX_DELAY);
+
+		HAL_Delay(500);
+		data[0] = 0b10000000;
+		HAL_UART_Transmit(&huart3, &data[0], 3, HAL_MAX_DELAY);
+
+		tail = (tail+1)%128;*/
+	}
+
+
+	char adc_chars[sizeof(uint32_t)] = {};
+
+	for(int i = 0; i < 2; i++){
+		HAL_ADC_Start(&hadc1);
+		HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY);
+		adc_vals[i] = 4095 - HAL_ADC_GetValue(&hadc1);
+	}
+
+	printf("A%04lu\n", adc_vals[0]);
+	printf("B%04lu\n", adc_vals[1]);
+
+/*
+	for(int i = 0; i < 2; i++){
+		uint32_t temp = adc_vals[i];
+		adc_vals[i] = endian_swap(temp) << 3;
+
+		memcpy(adc_chars + (sizeof(uint32_t)*i), &adc_vals[i], sizeof(uint32_t));
+	}
+
+	HAL_UART_Transmit(&huart2, (uint8_t *) &adc_chars[0], 2 * sizeof(uint32_t), HAL_MAX_DELAY);
+*/
+	HAL_Delay(100);
+
+    /* USER CODE END WHILE */
+
+    /* USER CODE BEGIN 3 */
+  }
+  /* USER CODE END 3 */
+}
+
+/**
+  * @brief System Clock Configuration
+  * @retval None
+  */
+void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+
+  /** Configure the main internal regulator output voltage
+  */
+  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Initializes the RCC Oscillators according to the specified parameters
+  * in the RCC_OscInitTypeDef structure.
+  */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
+  RCC_OscInitStruct.PLL.PLLM = 1;
+  RCC_OscInitStruct.PLL.PLLN = 10;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
+  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
+  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Initializes the CPU, AHB and APB buses clocks
+  */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
+  {
+    Error_Handler();
+  }
+}
+
+/**
+  * @brief ADC1 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_ADC1_Init(void)
+{
+
+  /* USER CODE BEGIN ADC1_Init 0 */
+
+  /* USER CODE END ADC1_Init 0 */
+
+  ADC_MultiModeTypeDef multimode = {0};
+  ADC_ChannelConfTypeDef sConfig = {0};
+
+  /* USER CODE BEGIN ADC1_Init 1 */
+
+  /* USER CODE END ADC1_Init 1 */
+  /** Common config
+  */
+  hadc1.Instance = ADC1;
+  hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
+  hadc1.Init.Resolution = ADC_RESOLUTION_12B;
+  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
+  hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
+  hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
+  hadc1.Init.LowPowerAutoWait = DISABLE;
+  hadc1.Init.ContinuousConvMode = DISABLE;
+  hadc1.Init.NbrOfConversion = 2;
+  hadc1.Init.DiscontinuousConvMode = DISABLE;
+  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
+  hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
+  hadc1.Init.DMAContinuousRequests = DISABLE;
+  hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;
+  hadc1.Init.OversamplingMode = DISABLE;
+  if (HAL_ADC_Init(&hadc1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Configure the ADC multi-mode
+  */
+  multimode.Mode = ADC_MODE_INDEPENDENT;
+  if (HAL_ADCEx_MultiModeConfigChannel(&hadc1, &multimode) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Configure Regular Channel
+  */
+  sConfig.Channel = ADC_CHANNEL_1;
+  sConfig.Rank = ADC_REGULAR_RANK_1;
+  sConfig.SamplingTime = ADC_SAMPLETIME_640CYCLES_5;
+  sConfig.SingleDiff = ADC_SINGLE_ENDED;
+  sConfig.OffsetNumber = ADC_OFFSET_NONE;
+  sConfig.Offset = 0;
+  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Configure Regular Channel
+  */
+  sConfig.Channel = ADC_CHANNEL_2;
+  sConfig.Rank = ADC_REGULAR_RANK_2;
+  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN ADC1_Init 2 */
+
+  /* USER CODE END ADC1_Init 2 */
+
+}
+
+/**
+  * @brief DAC1 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_DAC1_Init(void)
+{
+
+  /* USER CODE BEGIN DAC1_Init 0 */
+
+  /* USER CODE END DAC1_Init 0 */
+
+  DAC_ChannelConfTypeDef sConfig = {0};
+
+  /* USER CODE BEGIN DAC1_Init 1 */
+
+  /* USER CODE END DAC1_Init 1 */
+  /** DAC Initialization
+  */
+  hdac1.Instance = DAC1;
+  if (HAL_DAC_Init(&hdac1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** DAC channel OUT1 config
+  */
+  sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_DISABLE;
+  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
+  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
+  sConfig.DAC_ConnectOnChipPeripheral = DAC_CHIPCONNECT_DISABLE;
+  sConfig.DAC_UserTrimming = DAC_TRIMMING_FACTORY;
+  if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** DAC channel OUT2 config
+  */
+  if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN DAC1_Init 2 */
+
+  /* USER CODE END DAC1_Init 2 */
+
+}
+
+/**
+  * @brief USART2 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_USART2_UART_Init(void)
+{
+
+  /* USER CODE BEGIN USART2_Init 0 */
+
+  /* USER CODE END USART2_Init 0 */
+
+  /* USER CODE BEGIN USART2_Init 1 */
+
+  /* USER CODE END USART2_Init 1 */
+  huart2.Instance = USART2;
+  huart2.Init.BaudRate = 115200;
+  huart2.Init.WordLength = UART_WORDLENGTH_8B;
+  huart2.Init.StopBits = UART_STOPBITS_1;
+  huart2.Init.Parity = UART_PARITY_NONE;
+  huart2.Init.Mode = UART_MODE_TX_RX;
+  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
+  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
+  huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
+  huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
+  if (HAL_UART_Init(&huart2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN USART2_Init 2 */
+
+  /* USER CODE END USART2_Init 2 */
+
+}
+
+/**
+  * @brief GPIO Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_GPIO_Init(void)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+  /* GPIO Ports Clock Enable */
+  __HAL_RCC_GPIOC_CLK_ENABLE();
+  __HAL_RCC_GPIOH_CLK_ENABLE();
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+
+  /*Configure GPIO pin Output Level */
+  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, GPIO_PIN_RESET);
+
+  /*Configure GPIO pin : B1_Pin */
+  GPIO_InitStruct.Pin = B1_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
+
+  /*Configure GPIO pin : PA6 */
+  GPIO_InitStruct.Pin = GPIO_PIN_6;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /*Configure GPIO pins : IT3_Pin IT2_Pin IT1_Pin */
+  GPIO_InitStruct.Pin = IT3_Pin|IT2_Pin|IT1_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* EXTI interrupt init*/
+  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 8, 0);
+  HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
+
+}
+
+/* USER CODE BEGIN 4 */
+
+/* USER CODE END 4 */
+
+/**
+  * @brief  This function is executed in case of error occurrence.
+  * @retval None
+  */
+void Error_Handler(void)
+{
+  /* USER CODE BEGIN Error_Handler_Debug */
+  /* User can add his own implementation to report the HAL error return state */
+  __disable_irq();
+  while (1)
+  {
+  }
+  /* USER CODE END Error_Handler_Debug */
+}
+
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  Reports the name of the source file and the source line number
+  *         where the assert_param error has occurred.
+  * @param  file: pointer to the source file name
+  * @param  line: assert_param error line source number
+  * @retval None
+  */
+void assert_failed(uint8_t *file, uint32_t line)
+{
+  /* USER CODE BEGIN 6 */
+  /* User can add his own implementation to report the file name and line number,
+     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+  /* USER CODE END 6 */
+}
+#endif /* USE_FULL_ASSERT */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

hardware/code/Core/Src/stm32l4xx_it.c

@@ -0,0 +1,246 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_it.c
+  * @brief   Interrupt Service Routines.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2022 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+#include "stm32l4xx_it.h"
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN TD */
+
+/* USER CODE END TD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+extern uint8_t rx;
+extern uint8_t rx_buf[128];
+extern uint8_t head;
+extern uint8_t tail;
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* Private user code ---------------------------------------------------------*/
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/* External variables --------------------------------------------------------*/
+extern UART_HandleTypeDef huart2;
+/* USER CODE BEGIN EV */
+
+/* USER CODE END EV */
+
+/******************************************************************************/
+/*           Cortex-M4 Processor Interruption and Exception Handlers          */
+/******************************************************************************/
+/**
+  * @brief This function handles Non maskable interrupt.
+  */
+void NMI_Handler(void)
+{
+  /* USER CODE BEGIN NonMaskableInt_IRQn 0 */
+
+  /* USER CODE END NonMaskableInt_IRQn 0 */
+  /* USER CODE BEGIN NonMaskableInt_IRQn 1 */
+  while (1)
+  {
+  }
+  /* USER CODE END NonMaskableInt_IRQn 1 */
+}
+
+/**
+  * @brief This function handles Hard fault interrupt.
+  */
+void HardFault_Handler(void)
+{
+  /* USER CODE BEGIN HardFault_IRQn 0 */
+
+  /* USER CODE END HardFault_IRQn 0 */
+  while (1)
+  {
+    /* USER CODE BEGIN W1_HardFault_IRQn 0 */
+    /* USER CODE END W1_HardFault_IRQn 0 */
+  }
+}
+
+/**
+  * @brief This function handles Memory management fault.
+  */
+void MemManage_Handler(void)
+{
+  /* USER CODE BEGIN MemoryManagement_IRQn 0 */
+
+  /* USER CODE END MemoryManagement_IRQn 0 */
+  while (1)
+  {
+    /* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
+    /* USER CODE END W1_MemoryManagement_IRQn 0 */
+  }
+}
+
+/**
+  * @brief This function handles Prefetch fault, memory access fault.
+  */
+void BusFault_Handler(void)
+{
+  /* USER CODE BEGIN BusFault_IRQn 0 */
+
+  /* USER CODE END BusFault_IRQn 0 */
+  while (1)
+  {
+    /* USER CODE BEGIN W1_BusFault_IRQn 0 */
+    /* USER CODE END W1_BusFault_IRQn 0 */
+  }
+}
+
+/**
+  * @brief This function handles Undefined instruction or illegal state.
+  */
+void UsageFault_Handler(void)
+{
+  /* USER CODE BEGIN UsageFault_IRQn 0 */
+
+  /* USER CODE END UsageFault_IRQn 0 */
+  while (1)
+  {
+    /* USER CODE BEGIN W1_UsageFault_IRQn 0 */
+    /* USER CODE END W1_UsageFault_IRQn 0 */
+  }
+}
+
+/**
+  * @brief This function handles System service call via SWI instruction.
+  */
+void SVC_Handler(void)
+{
+  /* USER CODE BEGIN SVCall_IRQn 0 */
+
+  /* USER CODE END SVCall_IRQn 0 */
+  /* USER CODE BEGIN SVCall_IRQn 1 */
+
+  /* USER CODE END SVCall_IRQn 1 */
+}
+
+/**
+  * @brief This function handles Debug monitor.
+  */
+void DebugMon_Handler(void)
+{
+  /* USER CODE BEGIN DebugMonitor_IRQn 0 */
+
+  /* USER CODE END DebugMonitor_IRQn 0 */
+  /* USER CODE BEGIN DebugMonitor_IRQn 1 */
+
+  /* USER CODE END DebugMonitor_IRQn 1 */
+}
+
+/**
+  * @brief This function handles Pendable request for system service.
+  */
+void PendSV_Handler(void)
+{
+  /* USER CODE BEGIN PendSV_IRQn 0 */
+
+  /* USER CODE END PendSV_IRQn 0 */
+  /* USER CODE BEGIN PendSV_IRQn 1 */
+
+  /* USER CODE END PendSV_IRQn 1 */
+}
+
+/**
+  * @brief This function handles System tick timer.
+  */
+void SysTick_Handler(void)
+{
+  /* USER CODE BEGIN SysTick_IRQn 0 */
+
+  /* USER CODE END SysTick_IRQn 0 */
+  HAL_IncTick();
+  /* USER CODE BEGIN SysTick_IRQn 1 */
+
+  /* USER CODE END SysTick_IRQn 1 */
+}
+
+/******************************************************************************/
+/* STM32L4xx Peripheral Interrupt Handlers                                    */
+/* Add here the Interrupt Handlers for the used peripherals.                  */
+/* For the available peripheral interrupt handler names,                      */
+/* please refer to the startup file (startup_stm32l4xx.s).                    */
+/******************************************************************************/
+
+/**
+  * @brief This function handles EXTI line[9:5] interrupts.
+  */
+void EXTI9_5_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI9_5_IRQn 0 */
+
+  /* USER CODE END EXTI9_5_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_7);
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_8);
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_9);
+  /* USER CODE BEGIN EXTI9_5_IRQn 1 */
+
+  /* USER CODE END EXTI9_5_IRQn 1 */
+}
+
+/**
+  * @brief This function handles USART2 global interrupt.
+  */
+void USART2_IRQHandler(void)
+{
+  /* USER CODE BEGIN USART2_IRQn 0 */
+
+  /* USER CODE END USART2_IRQn 0 */
+  HAL_UART_IRQHandler(&huart2);
+  /* USER CODE BEGIN USART2_IRQn 1 */
+
+  if ((head+1)%128 != tail){
+	  rx_buf[head] = rx;
+	  head = (head+1)%128;
+  }
+  HAL_UART_Receive_IT(&huart2, &rx, 1);
+
+  /* USER CODE END USART2_IRQn 1 */
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

hardware/code/musique_box.ioc

@@ -0,0 +1,244 @@
+#MicroXplorer Configuration settings - do not modify
+ADC1.Channel-1\#ChannelRegularConversion=ADC_CHANNEL_1
+ADC1.Channel-2\#ChannelRegularConversion=ADC_CHANNEL_2
+ADC1.IPParameters=Rank-1\#ChannelRegularConversion,Channel-1\#ChannelRegularConversion,SamplingTime-1\#ChannelRegularConversion,OffsetNumber-1\#ChannelRegularConversion,NbrOfConversionFlag,Rank-2\#ChannelRegularConversion,Channel-2\#ChannelRegularConversion,SamplingTime-2\#ChannelRegularConversion,OffsetNumber-2\#ChannelRegularConversion,NbrOfConversion,master
+ADC1.NbrOfConversion=2
+ADC1.NbrOfConversionFlag=1
+ADC1.OffsetNumber-1\#ChannelRegularConversion=ADC_OFFSET_NONE
+ADC1.OffsetNumber-2\#ChannelRegularConversion=ADC_OFFSET_NONE
+ADC1.Rank-1\#ChannelRegularConversion=1
+ADC1.Rank-2\#ChannelRegularConversion=2
+ADC1.SamplingTime-1\#ChannelRegularConversion=ADC_SAMPLETIME_640CYCLES_5
+ADC1.SamplingTime-2\#ChannelRegularConversion=ADC_SAMPLETIME_640CYCLES_5
+ADC1.master=1
+DAC1.DAC_Channel-DAC_OUT2=DAC_CHANNEL_2
+DAC1.IPParameters=DAC_Channel-DAC_OUT2
+File.Version=6
+GPIO.groupedBy=Group By Peripherals
+KeepUserPlacement=false
+Mcu.Family=STM32L4
+Mcu.IP0=ADC1
+Mcu.IP1=DAC1
+Mcu.IP2=NVIC
+Mcu.IP3=RCC
+Mcu.IP4=SYS
+Mcu.IP5=USART2
+Mcu.IPNb=6
+Mcu.Name=STM32L476R(C-E-G)Tx
+Mcu.Package=LQFP64
+Mcu.Pin0=PC13
+Mcu.Pin1=PC14-OSC32_IN (PC14)
+Mcu.Pin10=PA5
+Mcu.Pin11=PA6
+Mcu.Pin12=PA7
+Mcu.Pin13=PA8
+Mcu.Pin14=PA9
+Mcu.Pin15=PA13 (JTMS-SWDIO)
+Mcu.Pin16=PA14 (JTCK-SWCLK)
+Mcu.Pin17=PB3 (JTDO-TRACESWO)
+Mcu.Pin18=VP_ADC1_Vref_Input
+Mcu.Pin19=VP_SYS_VS_Systick
+Mcu.Pin2=PC15-OSC32_OUT (PC15)
+Mcu.Pin3=PH0-OSC_IN (PH0)
+Mcu.Pin4=PH1-OSC_OUT (PH1)
+Mcu.Pin5=PC0
+Mcu.Pin6=PC1
+Mcu.Pin7=PA2
+Mcu.Pin8=PA3
+Mcu.Pin9=PA4
+Mcu.PinsNb=20
+Mcu.ThirdPartyNb=0
+Mcu.UserConstants=
+Mcu.UserName=STM32L476RGTx
+MxCube.Version=6.3.0
+MxDb.Version=DB.6.0.30
+NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:true\:false
+NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:true\:false
+NVIC.EXTI9_5_IRQn=true\:8\:0\:true\:false\:true\:true\:true
+NVIC.ForceEnableDMAVector=true
+NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:true\:false
+NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:true\:false
+NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:true\:false
+NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
+NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+NVIC.SysTick_IRQn=true\:0\:0\:false\:false\:true\:true\:true
+NVIC.USART2_IRQn=true\:0\:0\:false\:false\:true\:true\:true
+NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:true\:false
+PA13\ (JTMS-SWDIO).GPIOParameters=GPIO_Label
+PA13\ (JTMS-SWDIO).GPIO_Label=TMS
+PA13\ (JTMS-SWDIO).Locked=true
+PA13\ (JTMS-SWDIO).Mode=Serial_Wire
+PA13\ (JTMS-SWDIO).Signal=SYS_JTMS-SWDIO
+PA14\ (JTCK-SWCLK).GPIOParameters=GPIO_Label
+PA14\ (JTCK-SWCLK).GPIO_Label=TCK
+PA14\ (JTCK-SWCLK).Locked=true
+PA14\ (JTCK-SWCLK).Mode=Serial_Wire
+PA14\ (JTCK-SWCLK).Signal=SYS_JTCK-SWCLK
+PA2.GPIOParameters=GPIO_Speed,GPIO_PuPd,GPIO_Label,GPIO_Mode
+PA2.GPIO_Label=USART_TX
+PA2.GPIO_Mode=GPIO_MODE_AF_PP
+PA2.GPIO_PuPd=GPIO_NOPULL
+PA2.GPIO_Speed=GPIO_SPEED_FREQ_VERY_HIGH
+PA2.Locked=true
+PA2.Mode=Asynchronous
+PA2.Signal=USART2_TX
+PA3.GPIOParameters=GPIO_Speed,GPIO_PuPd,GPIO_Label,GPIO_Mode
+PA3.GPIO_Label=USART_RX
+PA3.GPIO_Mode=GPIO_MODE_AF_PP
+PA3.GPIO_PuPd=GPIO_NOPULL
+PA3.GPIO_Speed=GPIO_SPEED_FREQ_VERY_HIGH
+PA3.Locked=true
+PA3.Mode=Asynchronous
+PA3.Signal=USART2_RX
+PA4.Signal=COMP_DAC11_group
+PA5.Signal=COMP_DAC12_group
+PA6.Locked=true
+PA6.Signal=GPIO_Output
+PA7.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PA7.GPIO_Label=IT3
+PA7.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING
+PA7.GPIO_PuPd=GPIO_PULLUP
+PA7.Locked=true
+PA7.Signal=GPXTI7
+PA8.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PA8.GPIO_Label=IT2
+PA8.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING
+PA8.GPIO_PuPd=GPIO_PULLUP
+PA8.Locked=true
+PA8.Signal=GPXTI8
+PA9.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PA9.GPIO_Label=IT1
+PA9.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING
+PA9.GPIO_PuPd=GPIO_PULLUP
+PA9.Locked=true
+PA9.Signal=GPXTI9
+PB3\ (JTDO-TRACESWO).GPIOParameters=GPIO_Label
+PB3\ (JTDO-TRACESWO).GPIO_Label=SWO
+PB3\ (JTDO-TRACESWO).Locked=true
+PB3\ (JTDO-TRACESWO).Signal=SYS_JTDO-SWO
+PC0.Signal=ADCx_IN1
+PC1.Signal=ADCx_IN2
+PC13.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PC13.GPIO_Label=B1 [Blue PushButton]
+PC13.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_FALLING
+PC13.GPIO_PuPd=GPIO_NOPULL
+PC13.Locked=true
+PC13.Signal=GPXTI13
+PC14-OSC32_IN\ (PC14).Locked=true
+PC14-OSC32_IN\ (PC14).Mode=LSE-External-Oscillator
+PC14-OSC32_IN\ (PC14).Signal=RCC_OSC32_IN
+PC15-OSC32_OUT\ (PC15).Locked=true
+PC15-OSC32_OUT\ (PC15).Mode=LSE-External-Oscillator
+PC15-OSC32_OUT\ (PC15).Signal=RCC_OSC32_OUT
+PH0-OSC_IN\ (PH0).Locked=true
+PH0-OSC_IN\ (PH0).Signal=RCC_OSC_IN
+PH1-OSC_OUT\ (PH1).Locked=true
+PH1-OSC_OUT\ (PH1).Signal=RCC_OSC_OUT
+PinOutPanel.RotationAngle=0
+ProjectManager.AskForMigrate=true
+ProjectManager.BackupPrevious=false
+ProjectManager.CompilerOptimize=6
+ProjectManager.ComputerToolchain=false
+ProjectManager.CoupleFile=false
+ProjectManager.CustomerFirmwarePackage=
+ProjectManager.DefaultFWLocation=true
+ProjectManager.DeletePrevious=true
+ProjectManager.DeviceId=STM32L476RGTx
+ProjectManager.FirmwarePackage=STM32Cube FW_L4 V1.17.2
+ProjectManager.FreePins=false
+ProjectManager.HalAssertFull=false
+ProjectManager.HeapSize=0x200
+ProjectManager.KeepUserCode=true
+ProjectManager.LastFirmware=true
+ProjectManager.LibraryCopy=1
+ProjectManager.MainLocation=Core/Src
+ProjectManager.NoMain=false
+ProjectManager.PreviousToolchain=STM32CubeIDE
+ProjectManager.ProjectBuild=false
+ProjectManager.ProjectFileName=musique_box.ioc
+ProjectManager.ProjectName=musique_box
+ProjectManager.RegisterCallBack=
+ProjectManager.StackSize=0x400
+ProjectManager.TargetToolchain=STM32CubeIDE
+ProjectManager.ToolChainLocation=
+ProjectManager.UnderRoot=true
+ProjectManager.functionlistsort=1-MX_GPIO_Init-GPIO-false-HAL-true,2-SystemClock_Config-RCC-false-HAL-false,3-MX_USART2_UART_Init-USART2-false-HAL-true,4-MX_ADC1_Init-ADC1-false-HAL-true,5-MX_DAC1_Init-DAC1-false-HAL-true
+RCC.ADCFreq_Value=64000000
+RCC.AHBFreq_Value=80000000
+RCC.APB1Freq_Value=80000000
+RCC.APB1TimFreq_Value=80000000
+RCC.APB2Freq_Value=80000000
+RCC.APB2TimFreq_Value=80000000
+RCC.CortexFreq_Value=80000000
+RCC.DFSDMFreq_Value=80000000
+RCC.FCLKCortexFreq_Value=80000000
+RCC.FamilyName=M
+RCC.HCLKFreq_Value=80000000
+RCC.HSE_VALUE=8000000
+RCC.HSI_VALUE=16000000
+RCC.I2C1Freq_Value=80000000
+RCC.I2C2Freq_Value=80000000
+RCC.I2C3Freq_Value=80000000
+RCC.IPParameters=ADCFreq_Value,AHBFreq_Value,APB1Freq_Value,APB1TimFreq_Value,APB2Freq_Value,APB2TimFreq_Value,CortexFreq_Value,DFSDMFreq_Value,FCLKCortexFreq_Value,FamilyName,HCLKFreq_Value,HSE_VALUE,HSI_VALUE,I2C1Freq_Value,I2C2Freq_Value,I2C3Freq_Value,LPTIM1Freq_Value,LPTIM2Freq_Value,LPUART1Freq_Value,LSCOPinFreq_Value,LSI_VALUE,MCO1PinFreq_Value,MSI_VALUE,PLLN,PLLPoutputFreq_Value,PLLQoutputFreq_Value,PLLRCLKFreq_Value,PLLSAI1PoutputFreq_Value,PLLSAI1QoutputFreq_Value,PLLSAI1RoutputFreq_Value,PLLSAI2PoutputFreq_Value,PLLSAI2RoutputFreq_Value,PLLSourceVirtual,PREFETCH_ENABLE,PWRFreq_Value,RNGFreq_Value,SAI1Freq_Value,SAI2Freq_Value,SDMMCFreq_Value,SWPMI1Freq_Value,SYSCLKFreq_VALUE,SYSCLKSource,UART4Freq_Value,UART5Freq_Value,USART1Freq_Value,USART2Freq_Value,USART3Freq_Value,USBFreq_Value,VCOInputFreq_Value,VCOOutputFreq_Value,VCOSAI1OutputFreq_Value,VCOSAI2OutputFreq_Value
+RCC.LPTIM1Freq_Value=80000000
+RCC.LPTIM2Freq_Value=80000000
+RCC.LPUART1Freq_Value=80000000
+RCC.LSCOPinFreq_Value=32000
+RCC.LSI_VALUE=32000
+RCC.MCO1PinFreq_Value=80000000
+RCC.MSI_VALUE=4000000
+RCC.PLLN=10
+RCC.PLLPoutputFreq_Value=22857142.85714286
+RCC.PLLQoutputFreq_Value=80000000
+RCC.PLLRCLKFreq_Value=80000000
+RCC.PLLSAI1PoutputFreq_Value=18285714.285714287
+RCC.PLLSAI1QoutputFreq_Value=64000000
+RCC.PLLSAI1RoutputFreq_Value=64000000
+RCC.PLLSAI2PoutputFreq_Value=18285714.285714287
+RCC.PLLSAI2RoutputFreq_Value=64000000
+RCC.PLLSourceVirtual=RCC_PLLSOURCE_HSI
+RCC.PREFETCH_ENABLE=1
+RCC.PWRFreq_Value=80000000
+RCC.RNGFreq_Value=64000000
+RCC.SAI1Freq_Value=18285714.285714287
+RCC.SAI2Freq_Value=18285714.285714287
+RCC.SDMMCFreq_Value=64000000
+RCC.SWPMI1Freq_Value=80000000
+RCC.SYSCLKFreq_VALUE=80000000
+RCC.SYSCLKSource=RCC_SYSCLKSOURCE_PLLCLK
+RCC.UART4Freq_Value=80000000
+RCC.UART5Freq_Value=80000000
+RCC.USART1Freq_Value=80000000
+RCC.USART2Freq_Value=80000000
+RCC.USART3Freq_Value=80000000
+RCC.USBFreq_Value=64000000
+RCC.VCOInputFreq_Value=16000000
+RCC.VCOOutputFreq_Value=160000000
+RCC.VCOSAI1OutputFreq_Value=128000000
+RCC.VCOSAI2OutputFreq_Value=128000000
+SH.ADCx_IN1.0=ADC1_IN1,IN1-Single-Ended
+SH.ADCx_IN1.ConfNb=1
+SH.ADCx_IN2.0=ADC1_IN2,IN2-Single-Ended
+SH.ADCx_IN2.ConfNb=1
+SH.COMP_DAC11_group.0=DAC1_OUT1,DAC_OUT1
+SH.COMP_DAC11_group.ConfNb=1
+SH.COMP_DAC12_group.0=DAC1_OUT2,DAC_OUT2
+SH.COMP_DAC12_group.ConfNb=1
+SH.GPXTI13.0=GPIO_EXTI13
+SH.GPXTI13.ConfNb=1
+SH.GPXTI7.0=GPIO_EXTI7
+SH.GPXTI7.ConfNb=1
+SH.GPXTI8.0=GPIO_EXTI8
+SH.GPXTI8.ConfNb=1
+SH.GPXTI9.0=GPIO_EXTI9
+SH.GPXTI9.ConfNb=1
+USART2.IPParameters=VirtualMode-Asynchronous
+USART2.VirtualMode-Asynchronous=VM_ASYNC
+VP_ADC1_Vref_Input.Mode=IN-Vrefint
+VP_ADC1_Vref_Input.Signal=ADC1_Vref_Input
+VP_SYS_VS_Systick.Mode=SysTick
+VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+board=NUCLEO-L476RG
+boardIOC=true
+isbadioc=false

lib/serial/LICENSE

@@ -0,0 +1,7 @@
+Copyright (c) 2012 William Woodall, John Harrison
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

lib/serial/include/serial/impl/unix.h

@@ -0,0 +1,221 @@
+/*!
+ * \file serial/impl/unix.h
+ * \author  William Woodall <wjwwood@gmail.com>
+ * \author  John Harrison <ash@greaterthaninfinity.com>
+ * \version 0.1
+ *
+ * \section LICENSE
+ *
+ * The MIT License
+ *
+ * Copyright (c) 2012 William Woodall, John Harrison
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * \section DESCRIPTION
+ *
+ * This provides a unix based pimpl for the Serial class. This implementation is
+ * based off termios.h and uses select for multiplexing the IO ports.
+ *
+ */
+
+#if !defined(_WIN32)
+
+#ifndef SERIAL_IMPL_UNIX_H
+#define SERIAL_IMPL_UNIX_H
+
+#include "serial/serial.h"
+
+#include <pthread.h>
+
+namespace serial {
+
+using std::size_t;
+using std::string;
+using std::invalid_argument;
+
+using serial::SerialException;
+using serial::IOException;
+
+class MillisecondTimer {
+public:
+  MillisecondTimer(const uint32_t millis);         
+  int64_t remaining();
+
+private:
+  static timespec timespec_now();
+  timespec expiry;
+};
+
+class serial::Serial::SerialImpl {
+public:
+  SerialImpl (const string &port,
+              unsigned long baudrate,
+              bytesize_t bytesize,
+              parity_t parity,
+              stopbits_t stopbits,
+              flowcontrol_t flowcontrol);
+
+  virtual ~SerialImpl ();
+
+  void
+  open ();
+
+  void
+  close ();
+
+  bool
+  isOpen () const;
+
+  size_t
+  available ();
+
+  bool
+  waitReadable (uint32_t timeout);
+
+  void
+  waitByteTimes (size_t count);
+
+  size_t
+  read (uint8_t *buf, size_t size = 1);
+
+  size_t
+  write (const uint8_t *data, size_t length);
+
+  void
+  flush ();
+
+  void
+  flushInput ();
+
+  void
+  flushOutput ();
+
+  void
+  sendBreak (int duration);
+
+  void
+  setBreak (bool level);
+
+  void
+  setRTS (bool level);
+
+  void
+  setDTR (bool level);
+
+  bool
+  waitForChange ();
+
+  bool
+  getCTS ();
+
+  bool
+  getDSR ();
+
+  bool
+  getRI ();
+
+  bool
+  getCD ();
+
+  void
+  setPort (const string &port);
+
+  string
+  getPort () const;
+
+  void
+  setTimeout (Timeout &timeout);
+
+  Timeout
+  getTimeout () const;
+
+  void
+  setBaudrate (unsigned long baudrate);
+
+  unsigned long
+  getBaudrate () const;
+
+  void
+  setBytesize (bytesize_t bytesize);
+
+  bytesize_t
+  getBytesize () const;
+
+  void
+  setParity (parity_t parity);
+
+  parity_t
+  getParity () const;
+
+  void
+  setStopbits (stopbits_t stopbits);
+
+  stopbits_t
+  getStopbits () const;
+
+  void
+  setFlowcontrol (flowcontrol_t flowcontrol);
+
+  flowcontrol_t
+  getFlowcontrol () const;
+
+  void
+  readLock ();
+
+  void
+  readUnlock ();
+
+  void
+  writeLock ();
+
+  void
+  writeUnlock ();
+
+protected:
+  void reconfigurePort ();
+
+private:
+  string port_;               // Path to the file descriptor
+  int fd_;                    // The current file descriptor
+
+  bool is_open_;
+  bool xonxoff_;
+  bool rtscts_;
+
+  Timeout timeout_;           // Timeout for read operations
+  unsigned long baudrate_;    // Baudrate
+  uint32_t byte_time_ns_;     // Nanoseconds to transmit/receive a single byte
+
+  parity_t parity_;           // Parity
+  bytesize_t bytesize_;       // Size of the bytes
+  stopbits_t stopbits_;       // Stop Bits
+  flowcontrol_t flowcontrol_; // Flow Control
+
+  // Mutex used to lock the read functions
+  pthread_mutex_t read_mutex;
+  // Mutex used to lock the write functions
+  pthread_mutex_t write_mutex;
+};
+
+}
+
+#endif // SERIAL_IMPL_UNIX_H
+
+#endif // !defined(_WIN32)

lib/serial/include/serial/impl/win.h

@@ -0,0 +1,207 @@
+/*!
+ * \file serial/impl/windows.h
+ * \author  William Woodall <wjwwood@gmail.com>
+ * \author  John Harrison <ash@greaterthaninfinity.com>
+ * \version 0.1
+ *
+ * \section LICENSE
+ *
+ * The MIT License
+ *
+ * Copyright (c) 2012 William Woodall, John Harrison
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * \section DESCRIPTION
+ *
+ * This provides a windows implementation of the Serial class interface.
+ *
+ */
+
+#if defined(_WIN32)
+
+#ifndef SERIAL_IMPL_WINDOWS_H
+#define SERIAL_IMPL_WINDOWS_H
+
+#include "serial/serial.h"
+
+#include "windows.h"
+
+namespace serial {
+
+using std::string;
+using std::wstring;
+using std::invalid_argument;
+
+using serial::SerialException;
+using serial::IOException;
+
+class serial::Serial::SerialImpl {
+public:
+  SerialImpl (const string &port,
+              unsigned long baudrate,
+              bytesize_t bytesize,
+              parity_t parity,
+              stopbits_t stopbits,
+              flowcontrol_t flowcontrol);
+
+  virtual ~SerialImpl ();
+
+  void
+  open ();
+
+  void
+  close ();
+
+  bool
+  isOpen () const;
+
+  size_t
+  available ();
+  
+  bool
+  waitReadable (uint32_t timeout);
+
+  void
+  waitByteTimes (size_t count);
+
+  size_t
+  read (uint8_t *buf, size_t size = 1);
+
+  size_t
+  write (const uint8_t *data, size_t length);
+
+  void
+  flush ();
+
+  void
+  flushInput ();
+
+  void
+  flushOutput ();
+
+  void
+  sendBreak (int duration);
+
+  void
+  setBreak (bool level);
+
+  void
+  setRTS (bool level);
+
+  void
+  setDTR (bool level);
+
+  bool
+  waitForChange ();
+
+  bool
+  getCTS ();
+
+  bool
+  getDSR ();
+
+  bool
+  getRI ();
+
+  bool
+  getCD ();
+
+  void
+  setPort (const string &port);
+
+  string
+  getPort () const;
+
+  void
+  setTimeout (Timeout &timeout);
+
+  Timeout
+  getTimeout () const;
+
+  void
+  setBaudrate (unsigned long baudrate);
+
+  unsigned long
+  getBaudrate () const;
+
+  void
+  setBytesize (bytesize_t bytesize);
+
+  bytesize_t
+  getBytesize () const;
+
+  void
+  setParity (parity_t parity);
+
+  parity_t
+  getParity () const;
+
+  void
+  setStopbits (stopbits_t stopbits);
+
+  stopbits_t
+  getStopbits () const;
+
+  void
+  setFlowcontrol (flowcontrol_t flowcontrol);
+
+  flowcontrol_t
+  getFlowcontrol () const;
+
+  void
+  readLock ();
+
+  void
+  readUnlock ();
+
+  void
+  writeLock ();
+
+  void
+  writeUnlock ();
+
+protected:
+  void reconfigurePort ();
+
+private:
+  wstring port_;               // Path to the file descriptor
+  HANDLE fd_;
+
+  bool is_open_;
+
+  Timeout timeout_;           // Timeout for read operations
+  unsigned long baudrate_;    // Baudrate
+
+  parity_t parity_;           // Parity
+  bytesize_t bytesize_;       // Size of the bytes
+  stopbits_t stopbits_;       // Stop Bits
+  flowcontrol_t flowcontrol_; // Flow Control
+
+  // Mutex used to lock the read functions
+  HANDLE read_mutex;
+  // Mutex used to lock the write functions
+  HANDLE write_mutex;
+};
+
+}
+
+#endif // SERIAL_IMPL_WINDOWS_H
+
+#endif // if defined(_WIN32)

lib/serial/include/serial/serial.h

@@ -0,0 +1,775 @@
+/*!
+ * \file serial/serial.h
+ * \author  William Woodall <wjwwood@gmail.com>
+ * \author  John Harrison   <ash.gti@gmail.com>
+ * \version 0.1
+ *
+ * \section LICENSE
+ *
+ * The MIT License
+ *
+ * Copyright (c) 2012 William Woodall
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * \section DESCRIPTION
+ *
+ * This provides a cross platform interface for interacting with Serial Ports.
+ */
+
+#ifndef SERIAL_H
+#define SERIAL_H
+
+#include <limits>
+#include <vector>
+#include <string>
+#include <cstring>
+#include <sstream>
+#include <exception>
+#include <stdexcept>
+#include <serial/v8stdint.h>
+
+#define THROW(exceptionClass, message) throw exceptionClass(__FILE__, \
+__LINE__, (message) )
+
+namespace serial {
+
+/*!
+ * Enumeration defines the possible bytesizes for the serial port.
+ */
+typedef enum {
+  fivebits = 5,
+  sixbits = 6,
+  sevenbits = 7,
+  eightbits = 8
+} bytesize_t;
+
+/*!
+ * Enumeration defines the possible parity types for the serial port.
+ */
+typedef enum {
+  parity_none = 0,
+  parity_odd = 1,
+  parity_even = 2,
+  parity_mark = 3,
+  parity_space = 4
+} parity_t;
+
+/*!
+ * Enumeration defines the possible stopbit types for the serial port.
+ */
+typedef enum {
+  stopbits_one = 1,
+  stopbits_two = 2,
+  stopbits_one_point_five
+} stopbits_t;
+
+/*!
+ * Enumeration defines the possible flowcontrol types for the serial port.
+ */
+typedef enum {
+  flowcontrol_none = 0,
+  flowcontrol_software,
+  flowcontrol_hardware
+} flowcontrol_t;
+
+/*!
+ * Structure for setting the timeout of the serial port, times are
+ * in milliseconds.
+ *
+ * In order to disable the interbyte timeout, set it to Timeout::max().
+ */
+struct Timeout {
+#ifdef max
+# undef max
+#endif
+  static uint32_t max() {return std::numeric_limits<uint32_t>::max();}
+  /*!
+   * Convenience function to generate Timeout structs using a
+   * single absolute timeout.
+   *
+   * \param timeout A long that defines the time in milliseconds until a
+   * timeout occurs after a call to read or write is made.
+   *
+   * \return Timeout struct that represents this simple timeout provided.
+   */
+  static Timeout simpleTimeout(uint32_t timeout) {
+    return Timeout(max(), timeout, 0, timeout, 0);
+  }
+
+  /*! Number of milliseconds between bytes received to timeout on. */
+  uint32_t inter_byte_timeout;
+  /*! A constant number of milliseconds to wait after calling read. */
+  uint32_t read_timeout_constant;
+  /*! A multiplier against the number of requested bytes to wait after
+   *  calling read.
+   */
+  uint32_t read_timeout_multiplier;
+  /*! A constant number of milliseconds to wait after calling write. */
+  uint32_t write_timeout_constant;
+  /*! A multiplier against the number of requested bytes to wait after
+   *  calling write.
+   */
+  uint32_t write_timeout_multiplier;
+
+  explicit Timeout (uint32_t inter_byte_timeout_=0,
+                    uint32_t read_timeout_constant_=0,
+                    uint32_t read_timeout_multiplier_=0,
+                    uint32_t write_timeout_constant_=0,
+                    uint32_t write_timeout_multiplier_=0)
+  : inter_byte_timeout(inter_byte_timeout_),
+    read_timeout_constant(read_timeout_constant_),
+    read_timeout_multiplier(read_timeout_multiplier_),
+    write_timeout_constant(write_timeout_constant_),
+    write_timeout_multiplier(write_timeout_multiplier_)
+  {}
+};
+
+/*!
+ * Class that provides a portable serial port interface.
+ */
+class Serial {
+public:
+  /*!
+   * Creates a Serial object and opens the port if a port is specified,
+   * otherwise it remains closed until serial::Serial::open is called.
+   *
+   * \param port A std::string containing the address of the serial port,
+   *        which would be something like 'COM1' on Windows and '/dev/ttyS0'
+   *        on Linux.
+   *
+   * \param baudrate An unsigned 32-bit integer that represents the baudrate
+   *
+   * \param timeout A serial::Timeout struct that defines the timeout
+   * conditions for the serial port. \see serial::Timeout
+   *
+   * \param bytesize Size of each byte in the serial transmission of data,
+   * default is eightbits, possible values are: fivebits, sixbits, sevenbits,
+   * eightbits
+   *
+   * \param parity Method of parity, default is parity_none, possible values
+   * are: parity_none, parity_odd, parity_even
+   *
+   * \param stopbits Number of stop bits used, default is stopbits_one,
+   * possible values are: stopbits_one, stopbits_one_point_five, stopbits_two
+   *
+   * \param flowcontrol Type of flowcontrol used, default is
+   * flowcontrol_none, possible values are: flowcontrol_none,
+   * flowcontrol_software, flowcontrol_hardware
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::IOException
+   * \throw std::invalid_argument
+   */
+  Serial (const std::string &port = "",
+          uint32_t baudrate = 9600,
+          Timeout timeout = Timeout(),
+          bytesize_t bytesize = eightbits,
+          parity_t parity = parity_none,
+          stopbits_t stopbits = stopbits_one,
+          flowcontrol_t flowcontrol = flowcontrol_none);
+
+  /*! Destructor */
+  virtual ~Serial ();
+
+  /*!
+   * Opens the serial port as long as the port is set and the port isn't
+   * already open.
+   *
+   * If the port is provided to the constructor then an explicit call to open
+   * is not needed.
+   *
+   * \see Serial::Serial
+   *
+   * \throw std::invalid_argument
+   * \throw serial::SerialException
+   * \throw serial::IOException
+   */
+  void
+  open ();
+
+  /*! Gets the open status of the serial port.
+   *
+   * \return Returns true if the port is open, false otherwise.
+   */
+  bool
+  isOpen () const;
+
+  /*! Closes the serial port. */
+  void
+  close ();
+
+  /*! Return the number of characters in the buffer. */
+  size_t
+  available ();
+
+  /*! Block until there is serial data to read or read_timeout_constant
+   * number of milliseconds have elapsed. The return value is true when
+   * the function exits with the port in a readable state, false otherwise
+   * (due to timeout or select interruption). */
+  bool
+  waitReadable ();
+
+  /*! Block for a period of time corresponding to the transmission time of
+   * count characters at present serial settings. This may be used in con-
+   * junction with waitReadable to read larger blocks of data from the
+   * port. */
+  void
+  waitByteTimes (size_t count);
+
+  /*! Read a given amount of bytes from the serial port into a given buffer.
+   *
+   * The read function will return in one of three cases:
+   *  * The number of requested bytes was read.
+   *    * In this case the number of bytes requested will match the size_t
+   *      returned by read.
+   *  * A timeout occurred, in this case the number of bytes read will not
+   *    match the amount requested, but no exception will be thrown.  One of
+   *    two possible timeouts occurred:
+   *    * The inter byte timeout expired, this means that number of
+   *      milliseconds elapsed between receiving bytes from the serial port
+   *      exceeded the inter byte timeout.
+   *    * The total timeout expired, which is calculated by multiplying the
+   *      read timeout multiplier by the number of requested bytes and then
+   *      added to the read timeout constant.  If that total number of
+   *      milliseconds elapses after the initial call to read a timeout will
+   *      occur.
+   *  * An exception occurred, in this case an actual exception will be thrown.
+   *
+   * \param buffer An uint8_t array of at least the requested size.
+   * \param size A size_t defining how many bytes to be read.
+   *
+   * \return A size_t representing the number of bytes read as a result of the
+   *         call to read.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   */
+  size_t
+  read (uint8_t *buffer, size_t size);
+
+  /*! Read a given amount of bytes from the serial port into a give buffer.
+   *
+   * \param buffer A reference to a std::vector of uint8_t.
+   * \param size A size_t defining how many bytes to be read.
+   *
+   * \return A size_t representing the number of bytes read as a result of the
+   *         call to read.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   */
+  size_t
+  read (std::vector<uint8_t> &buffer, size_t size = 1);
+
+  /*! Read a given amount of bytes from the serial port into a give buffer.
+   *
+   * \param buffer A reference to a std::string.
+   * \param size A size_t defining how many bytes to be read.
+   *
+   * \return A size_t representing the number of bytes read as a result of the
+   *         call to read.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   */
+  size_t
+  read (std::string &buffer, size_t size = 1);
+
+  /*! Read a given amount of bytes from the serial port and return a string
+   *  containing the data.
+   *
+   * \param size A size_t defining how many bytes to be read.
+   *
+   * \return A std::string containing the data read from the port.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   */
+  std::string
+  read (size_t size = 1);
+
+  /*! Reads in a line or until a given delimiter has been processed.
+   *
+   * Reads from the serial port until a single line has been read.
+   *
+   * \param buffer A std::string reference used to store the data.
+   * \param size A maximum length of a line, defaults to 65536 (2^16)
+   * \param eol A string to match against for the EOL.
+   *
+   * \return A size_t representing the number of bytes read.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   */
+  size_t
+  readline (std::string &buffer, size_t size = 65536, std::string eol = "\n");
+
+  /*! Reads in a line or until a given delimiter has been processed.
+   *
+   * Reads from the serial port until a single line has been read.
+   *
+   * \param size A maximum length of a line, defaults to 65536 (2^16)
+   * \param eol A string to match against for the EOL.
+   *
+   * \return A std::string containing the line.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   */
+  std::string
+  readline (size_t size = 65536, std::string eol = "\n");
+
+  /*! Reads in multiple lines until the serial port times out.
+   *
+   * This requires a timeout > 0 before it can be run. It will read until a
+   * timeout occurs and return a list of strings.
+   *
+   * \param size A maximum length of combined lines, defaults to 65536 (2^16)
+   *
+   * \param eol A string to match against for the EOL.
+   *
+   * \return A vector<string> containing the lines.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   */
+  std::vector<std::string>
+  readlines (size_t size = 65536, std::string eol = "\n");
+
+  /*! Write a string to the serial port.
+   *
+   * \param data A const reference containing the data to be written
+   * to the serial port.
+   *
+   * \param size A size_t that indicates how many bytes should be written from
+   * the given data buffer.
+   *
+   * \return A size_t representing the number of bytes actually written to
+   * the serial port.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   * \throw serial::IOException
+   */
+  size_t
+  write (const uint8_t *data, size_t size);
+
+  /*! Write a string to the serial port.
+   *
+   * \param data A const reference containing the data to be written
+   * to the serial port.
+   *
+   * \return A size_t representing the number of bytes actually written to
+   * the serial port.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   * \throw serial::IOException
+   */
+  size_t
+  write (const std::vector<uint8_t> &data);
+
+  /*! Write a string to the serial port.
+   *
+   * \param data A const reference containing the data to be written
+   * to the serial port.
+   *
+   * \return A size_t representing the number of bytes actually written to
+   * the serial port.
+   *
+   * \throw serial::PortNotOpenedException
+   * \throw serial::SerialException
+   * \throw serial::IOException
+   */
+  size_t
+  write (const std::string &data);
+
+  /*! Sets the serial port identifier.
+   *
+   * \param port A const std::string reference containing the address of the
+   * serial port, which would be something like 'COM1' on Windows and
+   * '/dev/ttyS0' on Linux.
+   *
+   * \throw std::invalid_argument
+   */
+  void
+  setPort (const std::string &port);
+
+  /*! Gets the serial port identifier.
+   *
+   * \see Serial::setPort
+   *
+   * \throw std::invalid_argument
+   */
+  std::string
+  getPort () const;
+
+  /*! Sets the timeout for reads and writes using the Timeout struct.
+   *
+   * There are two timeout conditions described here:
+   *  * The inter byte timeout:
+   *    * The inter_byte_timeout component of serial::Timeout defines the
+   *      maximum amount of time, in milliseconds, between receiving bytes on
+   *      the serial port that can pass before a timeout occurs.  Setting this
+   *      to zero will prevent inter byte timeouts from occurring.
+   *  * Total time timeout:
+   *    * The constant and multiplier component of this timeout condition,
+   *      for both read and write, are defined in serial::Timeout.  This
+   *      timeout occurs if the total time since the read or write call was
+   *      made exceeds the specified time in milliseconds.
+   *    * The limit is defined by multiplying the multiplier component by the
+   *      number of requested bytes and adding that product to the constant
+   *      component.  In this way if you want a read call, for example, to
+   *      timeout after exactly one second regardless of the number of bytes
+   *      you asked for then set the read_timeout_constant component of
+   *      serial::Timeout to 1000 and the read_timeout_multiplier to zero.
+   *      This timeout condition can be used in conjunction with the inter
+   *      byte timeout condition with out any problems, timeout will simply
+   *      occur when one of the two timeout conditions is met.  This allows
+   *      users to have maximum control over the trade-off between
+   *      responsiveness and efficiency.
+   *
+   * Read and write functions will return in one of three cases.  When the
+   * reading or writing is complete, when a timeout occurs, or when an
+   * exception occurs.
+   *
+   * A timeout of 0 enables non-blocking mode.
+   *
+   * \param timeout A serial::Timeout struct containing the inter byte
+   * timeout, and the read and write timeout constants and multipliers.
+   *
+   * \see serial::Timeout
+   */
+  void
+  setTimeout (Timeout &timeout);
+
+  /*! Sets the timeout for reads and writes. */
+  void
+  setTimeout (uint32_t inter_byte_timeout, uint32_t read_timeout_constant,
+              uint32_t read_timeout_multiplier, uint32_t write_timeout_constant,
+              uint32_t write_timeout_multiplier)
+  {
+    Timeout timeout(inter_byte_timeout, read_timeout_constant,
+                    read_timeout_multiplier, write_timeout_constant,
+                    write_timeout_multiplier);
+    return setTimeout(timeout);
+  }
+
+  /*! Gets the timeout for reads in seconds.
+   *
+   * \return A Timeout struct containing the inter_byte_timeout, and read
+   * and write timeout constants and multipliers.
+   *
+   * \see Serial::setTimeout
+   */
+  Timeout
+  getTimeout () const;
+
+  /*! Sets the baudrate for the serial port.
+   *
+   * Possible baudrates depends on the system but some safe baudrates include:
+   * 110, 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 56000,
+   * 57600, 115200
+   * Some other baudrates that are supported by some comports:
+   * 128000, 153600, 230400, 256000, 460800, 500000, 921600
+   *
+   * \param baudrate An integer that sets the baud rate for the serial port.
+   *
+   * \throw std::invalid_argument
+   */
+  void
+  setBaudrate (uint32_t baudrate);
+
+  /*! Gets the baudrate for the serial port.
+   *
+   * \return An integer that sets the baud rate for the serial port.
+   *
+   * \see Serial::setBaudrate
+   *
+   * \throw std::invalid_argument
+   */
+  uint32_t
+  getBaudrate () const;
+
+  /*! Sets the bytesize for the serial port.
+   *
+   * \param bytesize Size of each byte in the serial transmission of data,
+   * default is eightbits, possible values are: fivebits, sixbits, sevenbits,
+   * eightbits
+   *
+   * \throw std::invalid_argument
+   */
+  void
+  setBytesize (bytesize_t bytesize);
+
+  /*! Gets the bytesize for the serial port.
+   *
+   * \see Serial::setBytesize
+   *
+   * \throw std::invalid_argument
+   */
+  bytesize_t
+  getBytesize () const;
+
+  /*! Sets the parity for the serial port.
+   *
+   * \param parity Method of parity, default is parity_none, possible values
+   * are: parity_none, parity_odd, parity_even
+   *
+   * \throw std::invalid_argument
+   */
+  void
+  setParity (parity_t parity);
+
+  /*! Gets the parity for the serial port.
+   *
+   * \see Serial::setParity
+   *
+   * \throw std::invalid_argument
+   */
+  parity_t
+  getParity () const;
+
+  /*! Sets the stopbits for the serial port.
+   *
+   * \param stopbits Number of stop bits used, default is stopbits_one,
+   * possible values are: stopbits_one, stopbits_one_point_five, stopbits_two
+   *
+   * \throw std::invalid_argument
+   */
+  void
+  setStopbits (stopbits_t stopbits);
+
+  /*! Gets the stopbits for the serial port.
+   *
+   * \see Serial::setStopbits
+   *
+   * \throw std::invalid_argument
+   */
+  stopbits_t
+  getStopbits () const;
+
+  /*! Sets the flow control for the serial port.
+   *
+   * \param flowcontrol Type of flowcontrol used, default is flowcontrol_none,
+   * possible values are: flowcontrol_none, flowcontrol_software,
+   * flowcontrol_hardware
+   *
+   * \throw std::invalid_argument
+   */
+  void
+  setFlowcontrol (flowcontrol_t flowcontrol);
+
+  /*! Gets the flow control for the serial port.
+   *
+   * \see Serial::setFlowcontrol
+   *
+   * \throw std::invalid_argument
+   */
+  flowcontrol_t
+  getFlowcontrol () const;
+
+  /*! Flush the input and output buffers */
+  void
+  flush ();
+
+  /*! Flush only the input buffer */
+  void
+  flushInput ();
+
+  /*! Flush only the output buffer */
+  void
+  flushOutput ();
+
+  /*! Sends the RS-232 break signal.  See tcsendbreak(3). */
+  void
+  sendBreak (int duration);
+
+  /*! Set the break condition to a given level.  Defaults to true. */
+  void
+  setBreak (bool level = true);
+
+  /*! Set the RTS handshaking line to the given level.  Defaults to true. */
+  void
+  setRTS (bool level = true);
+
+  /*! Set the DTR handshaking line to the given level.  Defaults to true. */
+  void
+  setDTR (bool level = true);
+
+  /*!
+   * Blocks until CTS, DSR, RI, CD changes or something interrupts it.
+   *
+   * Can throw an exception if an error occurs while waiting.
+   * You can check the status of CTS, DSR, RI, and CD once this returns.
+   * Uses TIOCMIWAIT via ioctl if available (mostly only on Linux) with a
+   * resolution of less than +-1ms and as good as +-0.2ms.  Otherwise a
+   * polling method is used which can give +-2ms.
+   *
+   * \return Returns true if one of the lines changed, false if something else
+   * occurred.
+   *
+   * \throw SerialException
+   */
+  bool
+  waitForChange ();
+
+  /*! Returns the current status of the CTS line. */
+  bool
+  getCTS ();
+
+  /*! Returns the current status of the DSR line. */
+  bool
+  getDSR ();
+
+  /*! Returns the current status of the RI line. */
+  bool
+  getRI ();
+
+  /*! Returns the current status of the CD line. */
+  bool
+  getCD ();
+
+private:
+  // Disable copy constructors
+  Serial(const Serial&);
+  Serial& operator=(const Serial&);
+
+  // Pimpl idiom, d_pointer
+  class SerialImpl;
+  SerialImpl *pimpl_;
+
+  // Scoped Lock Classes
+  class ScopedReadLock;
+  class ScopedWriteLock;
+
+  // Read common function
+  size_t
+  read_ (uint8_t *buffer, size_t size);
+  // Write common function
+  size_t
+  write_ (const uint8_t *data, size_t length);
+
+};
+
+class SerialException : public std::exception
+{
+  // Disable copy constructors
+  SerialException& operator=(const SerialException&);
+  std::string e_what_;
+public:
+  SerialException (const char *description) {
+      std::stringstream ss;
+      ss << "SerialException " << description << " failed.";
+      e_what_ = ss.str();
+  }
+  SerialException (const SerialException& other) : e_what_(other.e_what_) {}
+  virtual ~SerialException() throw() {}
+  virtual const char* what () const throw () {
+    return e_what_.c_str();
+  }
+};
+
+class IOException : public std::exception
+{
+  // Disable copy constructors
+  IOException& operator=(const IOException&);
+  std::string file_;
+  int line_;
+  std::string e_what_;
+  int errno_;
+public:
+  explicit IOException (std::string file, int line, int errnum)
+    : file_(file), line_(line), errno_(errnum) {
+      std::stringstream ss;
+#if defined(_WIN32) && !defined(__MINGW32__)
+      char error_str [1024];
+      strerror_s(error_str, 1024, errnum);
+#else
+      char * error_str = strerror(errnum);
+#endif
+      ss << "IO Exception (" << errno_ << "): " << error_str;
+      ss << ", file " << file_ << ", line " << line_ << ".";
+      e_what_ = ss.str();
+  }
+  explicit IOException (std::string file, int line, const char * description)
+    : file_(file), line_(line), errno_(0) {
+      std::stringstream ss;
+      ss << "IO Exception: " << description;
+      ss << ", file " << file_ << ", line " << line_ << ".";
+      e_what_ = ss.str();
+  }
+  virtual ~IOException() throw() {}
+  IOException (const IOException& other) : line_(other.line_), e_what_(other.e_what_), errno_(other.errno_) {}
+
+  int getErrorNumber () const { return errno_; }
+
+  virtual const char* what () const throw () {
+    return e_what_.c_str();
+  }
+};
+
+class PortNotOpenedException : public std::exception
+{
+  // Disable copy constructors
+  const PortNotOpenedException& operator=(PortNotOpenedException);
+  std::string e_what_;
+public:
+  PortNotOpenedException (const char * description)  {
+      std::stringstream ss;
+      ss << "PortNotOpenedException " << description << " failed.";
+      e_what_ = ss.str();
+  }
+  PortNotOpenedException (const PortNotOpenedException& other) : e_what_(other.e_what_) {}
+  virtual ~PortNotOpenedException() throw() {}
+  virtual const char* what () const throw () {
+    return e_what_.c_str();
+  }
+};
+
+/*!
+ * Structure that describes a serial device.
+ */
+struct PortInfo {
+
+  /*! Address of the serial port (this can be passed to the constructor of Serial). */
+  std::string port;
+
+  /*! Human readable description of serial device if available. */
+  std::string description;
+
+  /*! Hardware ID (e.g. VID:PID of USB serial devices) or "n/a" if not available. */
+  std::string hardware_id;
+
+};
+
+/* Lists the serial ports available on the system
+ *
+ * Returns a vector of available serial ports, each represented
+ * by a serial::PortInfo data structure:
+ *
+ * \return vector of serial::PortInfo.
+ */
+std::vector<PortInfo>
+list_ports();
+
+} // namespace serial
+
+#endif

lib/serial/include/serial/v8stdint.h

@@ -0,0 +1,57 @@
+// This header is from the v8 google project:
+// http://code.google.com/p/v8/source/browse/trunk/include/v8stdint.h
+
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Load definitions of standard types.
+
+#ifndef V8STDINT_H_
+#define V8STDINT_H_
+
+#include <stddef.h>
+#include <stdio.h>
+
+#if defined(_WIN32) && !defined(__MINGW32__)
+
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef short int16_t;  // NOLINT
+typedef unsigned short uint16_t;  // NOLINT
+typedef int int32_t;
+typedef unsigned int uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+// intptr_t and friends are defined in crtdefs.h through stdio.h.
+
+#else
+
+#include <stdint.h>
+
+#endif
+
+#endif  // V8STDINT_H_

lib/serial/src/impl/list_ports/list_ports_linux.cc

@@ -0,0 +1,336 @@
+#if defined(__linux__)
+
+/*
+ * Copyright (c) 2014 Craig Lilley <cralilley@gmail.com>
+ * This software is made available under the terms of the MIT licence.
+ * A copy of the licence can be obtained from:
+ * http://opensource.org/licenses/MIT
+ */
+
+#include <vector>
+#include <string>
+#include <sstream>
+#include <stdexcept>
+#include <iostream>
+#include <fstream>
+#include <cstdio>
+#include <cstdarg>
+#include <cstdlib>
+
+#include <glob.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "serial/serial.h"
+
+using serial::PortInfo;
+using std::istringstream;
+using std::ifstream;
+using std::getline;
+using std::vector;
+using std::string;
+using std::cout;
+using std::endl;
+
+static vector<string> glob(const vector<string>& patterns);
+static string basename(const string& path);
+static string dirname(const string& path);
+static bool path_exists(const string& path);
+static string realpath(const string& path);
+static string usb_sysfs_friendly_name(const string& sys_usb_path);
+static vector<string> get_sysfs_info(const string& device_path);
+static string read_line(const string& file);
+static string usb_sysfs_hw_string(const string& sysfs_path);
+static string format(const char* format, ...);
+
+vector<string>
+glob(const vector<string>& patterns)
+{
+    vector<string> paths_found;
+
+	if(patterns.size() == 0)
+	    return paths_found;
+
+    glob_t glob_results;
+
+    int glob_retval = glob(patterns[0].c_str(), 0, NULL, &glob_results);
+
+    vector<string>::const_iterator iter = patterns.begin();
+
+    while(++iter != patterns.end())
+    {
+        glob_retval = glob(iter->c_str(), GLOB_APPEND, NULL, &glob_results);
+    }
+
+    for(int path_index = 0; path_index < glob_results.gl_pathc; path_index++)
+    {
+        paths_found.push_back(glob_results.gl_pathv[path_index]);
+    }
+
+    globfree(&glob_results);
+
+    return paths_found;
+}
+
+string
+basename(const string& path)
+{
+    size_t pos = path.rfind("/");
+
+    if(pos == std::string::npos)
+        return path;
+
+    return string(path, pos+1, string::npos);
+}
+
+string
+dirname(const string& path)
+{
+    size_t pos = path.rfind("/");
+
+    if(pos == std::string::npos)
+        return path;
+    else if(pos == 0)
+        return "/";
+
+    return string(path, 0, pos);
+}
+
+bool
+path_exists(const string& path)
+{
+    struct stat sb;
+
+    if( stat(path.c_str(), &sb ) == 0 )
+        return true;
+
+    return false;
+}
+
+string
+realpath(const string& path)
+{
+    char* real_path = realpath(path.c_str(), NULL);
+
+    string result;
+
+    if(real_path != NULL)
+    {
+        result = real_path;
+
+        free(real_path);
+    }
+
+    return result;
+}
+
+string
+usb_sysfs_friendly_name(const string& sys_usb_path)
+{
+    unsigned int device_number = 0;
+
+    istringstream( read_line(sys_usb_path + "/devnum") ) >> device_number;
+
+    string manufacturer = read_line( sys_usb_path + "/manufacturer" );
+
+    string product = read_line( sys_usb_path + "/product" );
+
+    string serial = read_line( sys_usb_path + "/serial" );
+
+    if( manufacturer.empty() && product.empty() && serial.empty() )
+        return "";
+
+    return format("%s %s %s", manufacturer.c_str(), product.c_str(), serial.c_str() );
+}
+
+vector<string>
+get_sysfs_info(const string& device_path)
+{
+    string device_name = basename( device_path );
+
+    string friendly_name;
+
+    string hardware_id;
+
+    string sys_device_path = format( "/sys/class/tty/%s/device", device_name.c_str() );
+
+    if( device_name.compare(0,6,"ttyUSB") == 0 )
+    {
+        sys_device_path = dirname( dirname( realpath( sys_device_path ) ) );
+
+        if( path_exists( sys_device_path ) )
+        {
+            friendly_name = usb_sysfs_friendly_name( sys_device_path );
+
+            hardware_id = usb_sysfs_hw_string( sys_device_path );
+        }
+    }
+    else if( device_name.compare(0,6,"ttyACM") == 0 )
+    {
+        sys_device_path = dirname( realpath( sys_device_path ) );
+
+        if( path_exists( sys_device_path ) )
+        {
+            friendly_name = usb_sysfs_friendly_name( sys_device_path );
+
+            hardware_id = usb_sysfs_hw_string( sys_device_path );
+        }
+    }
+    else
+    {
+        // Try to read ID string of PCI device
+
+        string sys_id_path = sys_device_path + "/id";
+
+        if( path_exists( sys_id_path ) )
+            hardware_id = read_line( sys_id_path );
+    }
+
+    if( friendly_name.empty() )
+        friendly_name = device_name;
+
+    if( hardware_id.empty() )
+        hardware_id = "n/a";
+
+    vector<string> result;
+    result.push_back(friendly_name);
+    result.push_back(hardware_id);
+
+    return result;
+}
+
+string
+read_line(const string& file)
+{
+    ifstream ifs(file.c_str(), ifstream::in);
+
+    string line;
+
+    if(ifs)
+    {
+        getline(ifs, line);
+    }
+
+    return line;
+}
+
+string
+format(const char* format, ...)
+{
+    va_list ap;
+
+    size_t buffer_size_bytes = 256;
+
+    string result;
+
+    char* buffer = (char*)malloc(buffer_size_bytes);
+
+    if( buffer == NULL )
+        return result;
+
+    bool done = false;
+
+    unsigned int loop_count = 0;
+
+    while(!done)
+    {
+        va_start(ap, format);
+
+        int return_value = vsnprintf(buffer, buffer_size_bytes, format, ap);
+
+        if( return_value < 0 )
+        {
+            done = true;
+        }
+        else if( return_value >= buffer_size_bytes )
+        {
+            // Realloc and try again.
+
+            buffer_size_bytes = return_value + 1;
+
+            char* new_buffer_ptr = (char*)realloc(buffer, buffer_size_bytes);
+
+            if( new_buffer_ptr == NULL )
+            {
+                done = true;
+            }
+            else
+            {
+                buffer = new_buffer_ptr;
+            }
+        }
+        else
+        {
+            result = buffer;
+            done = true;
+        }
+
+        va_end(ap);
+
+        if( ++loop_count > 5 )
+            done = true;
+    }
+
+    free(buffer);
+
+    return result;
+}
+
+string
+usb_sysfs_hw_string(const string& sysfs_path)
+{
+    string serial_number = read_line( sysfs_path + "/serial" );
+
+    if( serial_number.length() > 0 )
+    {
+        serial_number = format( "SNR=%s", serial_number.c_str() );
+    }
+
+    string vid = read_line( sysfs_path + "/idVendor" );
+
+    string pid = read_line( sysfs_path + "/idProduct" );
+
+    return format("USB VID:PID=%s:%s %s", vid.c_str(), pid.c_str(), serial_number.c_str() );
+}
+
+vector<PortInfo>
+serial::list_ports()
+{
+    vector<PortInfo> results;
+
+    vector<string> search_globs;
+    search_globs.push_back("/dev/ttyACM*");
+    search_globs.push_back("/dev/ttyS*");
+    search_globs.push_back("/dev/ttyUSB*");
+    search_globs.push_back("/dev/tty.*");
+    search_globs.push_back("/dev/cu.*");
+    search_globs.push_back("/dev/rfcomm*");
+
+    vector<string> devices_found = glob( search_globs );
+
+    vector<string>::iterator iter = devices_found.begin();
+
+    while( iter != devices_found.end() )
+    {
+        string device = *iter++;
+
+        vector<string> sysfs_info = get_sysfs_info( device );
+
+        string friendly_name = sysfs_info[0];
+
+        string hardware_id = sysfs_info[1];
+
+        PortInfo device_entry;
+        device_entry.port = device;
+        device_entry.description = friendly_name;
+        device_entry.hardware_id = hardware_id;
+
+        results.push_back( device_entry );
+
+    }
+
+    return results;
+}
+
+#endif // defined(__linux__)

lib/serial/src/impl/list_ports/list_ports_osx.cc

@@ -0,0 +1,286 @@
+#if defined(__APPLE__)
+
+#include <sys/param.h>
+#include <stdint.h>
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <IOKit/IOKitLib.h>
+#include <IOKit/serial/IOSerialKeys.h>
+#include <IOKit/IOBSD.h>
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+#include "serial/serial.h"
+
+using serial::PortInfo;
+using std::string;
+using std::vector;
+
+#define HARDWARE_ID_STRING_LENGTH 128
+
+string cfstring_to_string( CFStringRef cfstring );
+string get_device_path( io_object_t& serial_port );
+string get_class_name( io_object_t& obj );
+io_registry_entry_t get_parent_iousb_device( io_object_t& serial_port );
+string get_string_property( io_object_t& device, const char* property );
+uint16_t get_int_property( io_object_t& device, const char* property );
+string rtrim(const string& str);
+
+string
+cfstring_to_string( CFStringRef cfstring )
+{
+    char cstring[MAXPATHLEN];
+    string result;
+
+    if( cfstring )
+    {
+        Boolean success = CFStringGetCString( cfstring,
+            cstring,
+            sizeof(cstring),
+            kCFStringEncodingASCII );
+
+        if( success )
+            result = cstring;
+    }
+
+    return result;
+}
+
+string
+get_device_path( io_object_t& serial_port )
+{
+    CFTypeRef callout_path;
+    string device_path;
+
+    callout_path = IORegistryEntryCreateCFProperty( serial_port,
+        CFSTR(kIOCalloutDeviceKey),
+        kCFAllocatorDefault,
+        0 );
+
+    if (callout_path)
+    {
+        if( CFGetTypeID(callout_path) == CFStringGetTypeID() )
+            device_path = cfstring_to_string( static_cast<CFStringRef>(callout_path) );
+
+        CFRelease(callout_path);
+    }
+
+    return device_path;
+}
+
+string
+get_class_name( io_object_t& obj )
+{
+    string result;
+    io_name_t class_name;
+    kern_return_t kern_result;
+
+    kern_result = IOObjectGetClass( obj, class_name );
+
+    if( kern_result == KERN_SUCCESS )
+        result = class_name;
+
+    return result;
+}
+
+io_registry_entry_t
+get_parent_iousb_device( io_object_t& serial_port )
+{
+    io_object_t device = serial_port;
+    io_registry_entry_t parent = 0;
+    io_registry_entry_t result = 0;
+    kern_return_t kern_result = KERN_FAILURE;
+    string name = get_class_name(device);
+
+    // Walk the IO Registry tree looking for this devices parent IOUSBDevice.
+    while( name != "IOUSBDevice" )
+    {
+        kern_result = IORegistryEntryGetParentEntry( device,
+        kIOServicePlane,
+        &parent );
+
+        if(kern_result != KERN_SUCCESS)
+        {
+            result = 0;
+            break;
+        }
+
+        device = parent;
+
+        name = get_class_name(device);
+    }
+
+    if(kern_result == KERN_SUCCESS)
+        result = device;
+
+    return result;
+}
+
+string
+get_string_property( io_object_t& device, const char* property )
+{
+    string property_name;
+
+    if( device )
+    {
+        CFStringRef property_as_cfstring = CFStringCreateWithCString (
+            kCFAllocatorDefault,
+            property,
+            kCFStringEncodingASCII );
+
+        CFTypeRef name_as_cfstring = IORegistryEntryCreateCFProperty(
+            device,
+            property_as_cfstring,
+            kCFAllocatorDefault,
+            0 );
+
+        if( name_as_cfstring )
+        {
+            if( CFGetTypeID(name_as_cfstring) == CFStringGetTypeID() )
+                property_name = cfstring_to_string( static_cast<CFStringRef>(name_as_cfstring) );
+
+            CFRelease(name_as_cfstring);
+        }
+
+        if(property_as_cfstring)
+            CFRelease(property_as_cfstring);
+    }
+
+    return property_name;
+}
+
+uint16_t
+get_int_property( io_object_t& device, const char* property )
+{
+    uint16_t result = 0;
+
+    if( device )
+    {
+        CFStringRef property_as_cfstring = CFStringCreateWithCString (
+            kCFAllocatorDefault,
+            property,
+            kCFStringEncodingASCII );
+
+        CFTypeRef number = IORegistryEntryCreateCFProperty( device,
+            property_as_cfstring,
+            kCFAllocatorDefault,
+            0 );
+
+        if(property_as_cfstring)
+            CFRelease(property_as_cfstring);
+
+        if( number )
+        {
+            if( CFGetTypeID(number) == CFNumberGetTypeID() )
+            {
+                bool success = CFNumberGetValue( static_cast<CFNumberRef>(number),
+                    kCFNumberSInt16Type,
+                    &result );
+
+                if( !success )
+                    result = 0;
+            }
+
+            CFRelease(number);
+        }
+
+    }
+
+    return result;
+}
+
+string rtrim(const string& str)
+{
+    string result = str;
+
+    string whitespace = " \t\f\v\n\r";
+
+    std::size_t found = result.find_last_not_of(whitespace);
+
+    if (found != std::string::npos)
+        result.erase(found+1);
+    else
+        result.clear();
+
+    return result;
+}
+
+vector<PortInfo>
+serial::list_ports(void)
+{
+    vector<PortInfo> devices_found;
+    CFMutableDictionaryRef classes_to_match;
+    io_iterator_t serial_port_iterator;
+    io_object_t serial_port;
+    mach_port_t master_port;
+    kern_return_t kern_result;
+
+    kern_result = IOMasterPort(MACH_PORT_NULL, &master_port);
+
+    if(kern_result != KERN_SUCCESS)
+        return devices_found;
+
+    classes_to_match = IOServiceMatching(kIOSerialBSDServiceValue);
+
+    if (classes_to_match == NULL)
+        return devices_found;
+
+    CFDictionarySetValue( classes_to_match,
+        CFSTR(kIOSerialBSDTypeKey),
+        CFSTR(kIOSerialBSDAllTypes) );
+
+    kern_result = IOServiceGetMatchingServices(master_port, classes_to_match, &serial_port_iterator);
+
+    if (KERN_SUCCESS != kern_result)
+        return devices_found;
+
+    while ( (serial_port = IOIteratorNext(serial_port_iterator)) )
+    {
+        string device_path = get_device_path( serial_port );
+        io_registry_entry_t parent = get_parent_iousb_device( serial_port );
+        IOObjectRelease(serial_port);
+
+        if( device_path.empty() )
+            continue;
+
+        PortInfo port_info;
+        port_info.port = device_path;
+        port_info.description = "n/a";
+        port_info.hardware_id = "n/a";
+
+        string device_name = rtrim( get_string_property( parent, "USB Product Name" ) );
+        string vendor_name = rtrim( get_string_property( parent, "USB Vendor Name") );
+        string description = rtrim( vendor_name + " " + device_name );
+        if( !description.empty() )
+            port_info.description = description;
+
+        string serial_number = rtrim(get_string_property( parent, "USB Serial Number" ) );
+        uint16_t vendor_id = get_int_property( parent, "idVendor" );
+        uint16_t product_id = get_int_property( parent, "idProduct" );
+
+        if( vendor_id && product_id )
+        {
+            char cstring[HARDWARE_ID_STRING_LENGTH];
+
+            if(serial_number.empty())
+                serial_number = "None";
+
+            int ret = snprintf( cstring, HARDWARE_ID_STRING_LENGTH, "USB VID:PID=%04x:%04x SNR=%s",
+                vendor_id,
+                product_id,
+                serial_number.c_str() );
+
+            if( (ret >= 0) && (ret < HARDWARE_ID_STRING_LENGTH) )
+                port_info.hardware_id = cstring;
+        }
+
+        devices_found.push_back(port_info);
+    }
+
+    IOObjectRelease(serial_port_iterator);
+    return devices_found;
+}
+
+#endif // defined(__APPLE__)

lib/serial/src/impl/list_ports/list_ports_win.cc

@@ -0,0 +1,152 @@
+#if defined(_WIN32)
+
+/*
+ * Copyright (c) 2014 Craig Lilley <cralilley@gmail.com>
+ * This software is made available under the terms of the MIT licence.
+ * A copy of the licence can be obtained from:
+ * http://opensource.org/licenses/MIT
+ */
+
+#include "serial/serial.h"
+#include <tchar.h>
+#include <windows.h>
+#include <setupapi.h>
+#include <initguid.h>
+#include <devguid.h>
+#include <cstring>
+
+using serial::PortInfo;
+using std::vector;
+using std::string;
+
+static const DWORD port_name_max_length = 256;
+static const DWORD friendly_name_max_length = 256;
+static const DWORD hardware_id_max_length = 256;
+
+// Convert a wide Unicode string to an UTF8 string
+std::string utf8_encode(const std::wstring &wstr)
+{
+	int size_needed = WideCharToMultiByte(CP_UTF8, 0, &wstr[0], (int)wstr.size(), NULL, 0, NULL, NULL);
+	std::string strTo( size_needed, 0 );
+	WideCharToMultiByte                  (CP_UTF8, 0, &wstr[0], (int)wstr.size(), &strTo[0], size_needed, NULL, NULL);
+	return strTo;
+}
+
+vector<PortInfo>
+serial::list_ports()
+{
+	vector<PortInfo> devices_found;
+
+	HDEVINFO device_info_set = SetupDiGetClassDevs(
+		(const GUID *) &GUID_DEVCLASS_PORTS,
+		NULL,
+		NULL,
+		DIGCF_PRESENT);
+
+	unsigned int device_info_set_index = 0;
+	SP_DEVINFO_DATA device_info_data;
+
+	device_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
+
+	while(SetupDiEnumDeviceInfo(device_info_set, device_info_set_index, &device_info_data))
+	{
+		device_info_set_index++;
+
+		// Get port name
+
+		HKEY hkey = SetupDiOpenDevRegKey(
+			device_info_set,
+			&device_info_data,
+			DICS_FLAG_GLOBAL,
+			0,
+			DIREG_DEV,
+			KEY_READ);
+
+		TCHAR port_name[port_name_max_length];
+		DWORD port_name_length = port_name_max_length;
+
+		LONG return_code = RegQueryValueEx(
+					hkey,
+					_T("PortName"),
+					NULL,
+					NULL,
+					(LPBYTE)port_name,
+					&port_name_length);
+
+		RegCloseKey(hkey);
+
+		if(return_code != EXIT_SUCCESS)
+			continue;
+
+		if(port_name_length > 0 && port_name_length <= port_name_max_length)
+			port_name[port_name_length-1] = '\0';
+		else
+			port_name[0] = '\0';
+
+		// Ignore parallel ports
+
+		if(_tcsstr(port_name, _T("LPT")) != NULL)
+			continue;
+
+		// Get port friendly name
+
+		TCHAR friendly_name[friendly_name_max_length];
+		DWORD friendly_name_actual_length = 0;
+
+		BOOL got_friendly_name = SetupDiGetDeviceRegistryProperty(
+					device_info_set,
+					&device_info_data,
+					SPDRP_FRIENDLYNAME,
+					NULL,
+					(PBYTE)friendly_name,
+					friendly_name_max_length,
+					&friendly_name_actual_length);
+
+		if(got_friendly_name == TRUE && friendly_name_actual_length > 0)
+			friendly_name[friendly_name_actual_length-1] = '\0';
+		else
+			friendly_name[0] = '\0';
+
+		// Get hardware ID
+
+		TCHAR hardware_id[hardware_id_max_length];
+		DWORD hardware_id_actual_length = 0;
+
+		BOOL got_hardware_id = SetupDiGetDeviceRegistryProperty(
+					device_info_set,
+					&device_info_data,
+					SPDRP_HARDWAREID,
+					NULL,
+					(PBYTE)hardware_id,
+					hardware_id_max_length,
+					&hardware_id_actual_length);
+
+		if(got_hardware_id == TRUE && hardware_id_actual_length > 0)
+			hardware_id[hardware_id_actual_length-1] = '\0';
+		else
+			hardware_id[0] = '\0';
+
+		#ifdef UNICODE
+			std::string portName = utf8_encode(port_name);
+			std::string friendlyName = utf8_encode(friendly_name);
+			std::string hardwareId = utf8_encode(hardware_id);
+		#else
+			std::string portName = port_name;
+			std::string friendlyName = friendly_name;
+			std::string hardwareId = hardware_id;
+		#endif
+
+		PortInfo port_entry;
+		port_entry.port = portName;
+		port_entry.description = friendlyName;
+		port_entry.hardware_id = hardwareId;
+
+		devices_found.push_back(port_entry);
+	}
+
+	SetupDiDestroyDeviceInfoList(device_info_set);
+
+	return devices_found;
+}
+
+#endif // #if defined(_WIN32)

lib/serial/src/impl/win.cc

@@ -0,0 +1,646 @@
+#if defined(_WIN32)
+
+/* Copyright 2012 William Woodall and John Harrison */
+
+#include <sstream>
+
+#include "serial/impl/win.h"
+
+using std::string;
+using std::wstring;
+using std::stringstream;
+using std::invalid_argument;
+using serial::Serial;
+using serial::Timeout;
+using serial::bytesize_t;
+using serial::parity_t;
+using serial::stopbits_t;
+using serial::flowcontrol_t;
+using serial::SerialException;
+using serial::PortNotOpenedException;
+using serial::IOException;
+
+inline wstring
+_prefix_port_if_needed(const wstring &input)
+{
+  static wstring windows_com_port_prefix = L"\\\\.\\";
+  if (input.compare(0, windows_com_port_prefix.size(), windows_com_port_prefix) != 0)
+  {
+    return windows_com_port_prefix + input;
+  }
+  return input;
+}
+
+Serial::SerialImpl::SerialImpl (const string &port, unsigned long baudrate,
+                                bytesize_t bytesize,
+                                parity_t parity, stopbits_t stopbits,
+                                flowcontrol_t flowcontrol)
+  : port_ (port.begin(), port.end()), fd_ (INVALID_HANDLE_VALUE), is_open_ (false),
+    baudrate_ (baudrate), parity_ (parity),
+    bytesize_ (bytesize), stopbits_ (stopbits), flowcontrol_ (flowcontrol)
+{
+  if (port_.empty () == false)
+    open ();
+  read_mutex = CreateMutex(NULL, false, NULL);
+  write_mutex = CreateMutex(NULL, false, NULL);
+}
+
+Serial::SerialImpl::~SerialImpl ()
+{
+  this->close();
+  CloseHandle(read_mutex);
+  CloseHandle(write_mutex);
+}
+
+void
+Serial::SerialImpl::open ()
+{
+  if (port_.empty ()) {
+    throw invalid_argument ("Empty port is invalid.");
+  }
+  if (is_open_ == true) {
+    throw SerialException ("Serial port already open.");
+  }
+
+  // See: https://github.com/wjwwood/serial/issues/84
+  wstring port_with_prefix = _prefix_port_if_needed(port_);
+  LPCWSTR lp_port = port_with_prefix.c_str();
+  fd_ = CreateFileW(lp_port,
+                    GENERIC_READ | GENERIC_WRITE,
+                    0,
+                    0,
+                    OPEN_EXISTING,
+                    FILE_ATTRIBUTE_NORMAL,
+                    0);
+
+  if (fd_ == INVALID_HANDLE_VALUE) {
+    DWORD create_file_err = GetLastError();
+	stringstream ss;
+    switch (create_file_err) {
+    case ERROR_FILE_NOT_FOUND:
+      // Use this->getPort to convert to a std::string
+      ss << "Specified port, " << this->getPort() << ", does not exist.";
+      THROW (IOException, ss.str().c_str());
+    default:
+      ss << "Unknown error opening the serial port: " << create_file_err;
+      THROW (IOException, ss.str().c_str());
+    }
+  }
+
+  reconfigurePort();
+  is_open_ = true;
+}
+
+void
+Serial::SerialImpl::reconfigurePort ()
+{
+  if (fd_ == INVALID_HANDLE_VALUE) {
+    // Can only operate on a valid file descriptor
+    THROW (IOException, "Invalid file descriptor, is the serial port open?");
+  }
+
+  DCB dcbSerialParams = {0};
+
+  dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
+
+  if (!GetCommState(fd_, &dcbSerialParams)) {
+    //error getting state
+    THROW (IOException, "Error getting the serial port state.");
+  }
+
+  // setup baud rate
+  switch (baudrate_) {
+#ifdef CBR_0
+  case 0: dcbSerialParams.BaudRate = CBR_0; break;
+#endif
+#ifdef CBR_50
+  case 50: dcbSerialParams.BaudRate = CBR_50; break;
+#endif
+#ifdef CBR_75
+  case 75: dcbSerialParams.BaudRate = CBR_75; break;
+#endif
+#ifdef CBR_110
+  case 110: dcbSerialParams.BaudRate = CBR_110; break;
+#endif
+#ifdef CBR_134
+  case 134: dcbSerialParams.BaudRate = CBR_134; break;
+#endif
+#ifdef CBR_150
+  case 150: dcbSerialParams.BaudRate = CBR_150; break;
+#endif
+#ifdef CBR_200
+  case 200: dcbSerialParams.BaudRate = CBR_200; break;
+#endif
+#ifdef CBR_300
+  case 300: dcbSerialParams.BaudRate = CBR_300; break;
+#endif
+#ifdef CBR_600
+  case 600: dcbSerialParams.BaudRate = CBR_600; break;
+#endif
+#ifdef CBR_1200
+  case 1200: dcbSerialParams.BaudRate = CBR_1200; break;
+#endif
+#ifdef CBR_1800
+  case 1800: dcbSerialParams.BaudRate = CBR_1800; break;
+#endif
+#ifdef CBR_2400
+  case 2400: dcbSerialParams.BaudRate = CBR_2400; break;
+#endif
+#ifdef CBR_4800
+  case 4800: dcbSerialParams.BaudRate = CBR_4800; break;
+#endif
+#ifdef CBR_7200
+  case 7200: dcbSerialParams.BaudRate = CBR_7200; break;
+#endif
+#ifdef CBR_9600
+  case 9600: dcbSerialParams.BaudRate = CBR_9600; break;
+#endif
+#ifdef CBR_14400
+  case 14400: dcbSerialParams.BaudRate = CBR_14400; break;
+#endif
+#ifdef CBR_19200
+  case 19200: dcbSerialParams.BaudRate = CBR_19200; break;
+#endif
+#ifdef CBR_28800
+  case 28800: dcbSerialParams.BaudRate = CBR_28800; break;
+#endif
+#ifdef CBR_57600
+  case 57600: dcbSerialParams.BaudRate = CBR_57600; break;
+#endif
+#ifdef CBR_76800
+  case 76800: dcbSerialParams.BaudRate = CBR_76800; break;
+#endif
+#ifdef CBR_38400
+  case 38400: dcbSerialParams.BaudRate = CBR_38400; break;
+#endif
+#ifdef CBR_115200
+  case 115200: dcbSerialParams.BaudRate = CBR_115200; break;
+#endif
+#ifdef CBR_128000
+  case 128000: dcbSerialParams.BaudRate = CBR_128000; break;
+#endif
+#ifdef CBR_153600
+  case 153600: dcbSerialParams.BaudRate = CBR_153600; break;
+#endif
+#ifdef CBR_230400
+  case 230400: dcbSerialParams.BaudRate = CBR_230400; break;
+#endif
+#ifdef CBR_256000
+  case 256000: dcbSerialParams.BaudRate = CBR_256000; break;
+#endif
+#ifdef CBR_460800
+  case 460800: dcbSerialParams.BaudRate = CBR_460800; break;
+#endif
+#ifdef CBR_921600
+  case 921600: dcbSerialParams.BaudRate = CBR_921600; break;
+#endif
+  default:
+    // Try to blindly assign it
+    dcbSerialParams.BaudRate = baudrate_;
+  }
+
+  // setup char len
+  if (bytesize_ == eightbits)
+    dcbSerialParams.ByteSize = 8;
+  else if (bytesize_ == sevenbits)
+    dcbSerialParams.ByteSize = 7;
+  else if (bytesize_ == sixbits)
+    dcbSerialParams.ByteSize = 6;
+  else if (bytesize_ == fivebits)
+    dcbSerialParams.ByteSize = 5;
+  else
+    throw invalid_argument ("invalid char len");
+
+  // setup stopbits
+  if (stopbits_ == stopbits_one)
+    dcbSerialParams.StopBits = ONESTOPBIT;
+  else if (stopbits_ == stopbits_one_point_five)
+    dcbSerialParams.StopBits = ONE5STOPBITS;
+  else if (stopbits_ == stopbits_two)
+    dcbSerialParams.StopBits = TWOSTOPBITS;
+  else
+    throw invalid_argument ("invalid stop bit");
+
+  // setup parity
+  if (parity_ == parity_none) {
+    dcbSerialParams.Parity = NOPARITY;
+  } else if (parity_ == parity_even) {
+    dcbSerialParams.Parity = EVENPARITY;
+  } else if (parity_ == parity_odd) {
+    dcbSerialParams.Parity = ODDPARITY;
+  } else if (parity_ == parity_mark) {
+    dcbSerialParams.Parity = MARKPARITY;
+  } else if (parity_ == parity_space) {
+    dcbSerialParams.Parity = SPACEPARITY;
+  } else {
+    throw invalid_argument ("invalid parity");
+  }
+
+  // setup flowcontrol
+  if (flowcontrol_ == flowcontrol_none) {
+    dcbSerialParams.fOutxCtsFlow = false;
+    dcbSerialParams.fRtsControl = RTS_CONTROL_DISABLE;
+    dcbSerialParams.fOutX = false;
+    dcbSerialParams.fInX = false;
+  }
+  if (flowcontrol_ == flowcontrol_software) {
+    dcbSerialParams.fOutxCtsFlow = false;
+    dcbSerialParams.fRtsControl = RTS_CONTROL_DISABLE;
+    dcbSerialParams.fOutX = true;
+    dcbSerialParams.fInX = true;
+  }
+  if (flowcontrol_ == flowcontrol_hardware) {
+    dcbSerialParams.fOutxCtsFlow = true;
+    dcbSerialParams.fRtsControl = RTS_CONTROL_HANDSHAKE;
+    dcbSerialParams.fOutX = false;
+    dcbSerialParams.fInX = false;
+  }
+
+  // activate settings
+  if (!SetCommState(fd_, &dcbSerialParams)){
+    CloseHandle(fd_);
+    THROW (IOException, "Error setting serial port settings.");
+  }
+
+  // Setup timeouts
+  COMMTIMEOUTS timeouts = {0};
+  timeouts.ReadIntervalTimeout = timeout_.inter_byte_timeout;
+  timeouts.ReadTotalTimeoutConstant = timeout_.read_timeout_constant;
+  timeouts.ReadTotalTimeoutMultiplier = timeout_.read_timeout_multiplier;
+  timeouts.WriteTotalTimeoutConstant = timeout_.write_timeout_constant;
+  timeouts.WriteTotalTimeoutMultiplier = timeout_.write_timeout_multiplier;
+  if (!SetCommTimeouts(fd_, &timeouts)) {
+    THROW (IOException, "Error setting timeouts.");
+  }
+}
+
+void
+Serial::SerialImpl::close ()
+{
+  if (is_open_ == true) {
+    if (fd_ != INVALID_HANDLE_VALUE) {
+      int ret;
+      ret = CloseHandle(fd_);
+      if (ret == 0) {
+        stringstream ss;
+        ss << "Error while closing serial port: " << GetLastError();
+        THROW (IOException, ss.str().c_str());
+      } else {
+        fd_ = INVALID_HANDLE_VALUE;
+      }
+    }
+    is_open_ = false;
+  }
+}
+
+bool
+Serial::SerialImpl::isOpen () const
+{
+  return is_open_;
+}
+
+size_t
+Serial::SerialImpl::available ()
+{
+  if (!is_open_) {
+    return 0;
+  }
+  COMSTAT cs;
+  if (!ClearCommError(fd_, NULL, &cs)) {
+    stringstream ss;
+    ss << "Error while checking status of the serial port: " << GetLastError();
+    THROW (IOException, ss.str().c_str());
+  }
+  return static_cast<size_t>(cs.cbInQue);
+}
+
+bool
+Serial::SerialImpl::waitReadable (uint32_t /*timeout*/)
+{
+  THROW (IOException, "waitReadable is not implemented on Windows.");
+  return false;
+}
+
+void
+Serial::SerialImpl::waitByteTimes (size_t /*count*/)
+{
+  THROW (IOException, "waitByteTimes is not implemented on Windows.");
+}
+
+size_t
+Serial::SerialImpl::read (uint8_t *buf, size_t size)
+{
+  if (!is_open_) {
+    throw PortNotOpenedException ("Serial::read");
+  }
+  DWORD bytes_read;
+  if (!ReadFile(fd_, buf, static_cast<DWORD>(size), &bytes_read, NULL)) {
+    stringstream ss;
+    ss << "Error while reading from the serial port: " << GetLastError();
+    THROW (IOException, ss.str().c_str());
+  }
+  return (size_t) (bytes_read);
+}
+
+size_t
+Serial::SerialImpl::write (const uint8_t *data, size_t length)
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::write");
+  }
+  DWORD bytes_written;
+  if (!WriteFile(fd_, data, static_cast<DWORD>(length), &bytes_written, NULL)) {
+    stringstream ss;
+    ss << "Error while writing to the serial port: " << GetLastError();
+    THROW (IOException, ss.str().c_str());
+  }
+  return (size_t) (bytes_written);
+}
+
+void
+Serial::SerialImpl::setPort (const string &port)
+{
+  port_ = wstring(port.begin(), port.end());
+}
+
+string
+Serial::SerialImpl::getPort () const
+{
+  return string(port_.begin(), port_.end());
+}
+
+void
+Serial::SerialImpl::setTimeout (serial::Timeout &timeout)
+{
+  timeout_ = timeout;
+  if (is_open_) {
+    reconfigurePort ();
+  }
+}
+
+serial::Timeout
+Serial::SerialImpl::getTimeout () const
+{
+  return timeout_;
+}
+
+void
+Serial::SerialImpl::setBaudrate (unsigned long baudrate)
+{
+  baudrate_ = baudrate;
+  if (is_open_) {
+    reconfigurePort ();
+  }
+}
+
+unsigned long
+Serial::SerialImpl::getBaudrate () const
+{
+  return baudrate_;
+}
+
+void
+Serial::SerialImpl::setBytesize (serial::bytesize_t bytesize)
+{
+  bytesize_ = bytesize;
+  if (is_open_) {
+    reconfigurePort ();
+  }
+}
+
+serial::bytesize_t
+Serial::SerialImpl::getBytesize () const
+{
+  return bytesize_;
+}
+
+void
+Serial::SerialImpl::setParity (serial::parity_t parity)
+{
+  parity_ = parity;
+  if (is_open_) {
+    reconfigurePort ();
+  }
+}
+
+serial::parity_t
+Serial::SerialImpl::getParity () const
+{
+  return parity_;
+}
+
+void
+Serial::SerialImpl::setStopbits (serial::stopbits_t stopbits)
+{
+  stopbits_ = stopbits;
+  if (is_open_) {
+    reconfigurePort ();
+  }
+}
+
+serial::stopbits_t
+Serial::SerialImpl::getStopbits () const
+{
+  return stopbits_;
+}
+
+void
+Serial::SerialImpl::setFlowcontrol (serial::flowcontrol_t flowcontrol)
+{
+  flowcontrol_ = flowcontrol;
+  if (is_open_) {
+    reconfigurePort ();
+  }
+}
+
+serial::flowcontrol_t
+Serial::SerialImpl::getFlowcontrol () const
+{
+  return flowcontrol_;
+}
+
+void
+Serial::SerialImpl::flush ()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::flush");
+  }
+  FlushFileBuffers (fd_);
+}
+
+void
+Serial::SerialImpl::flushInput ()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException("Serial::flushInput");
+  }
+  PurgeComm(fd_, PURGE_RXCLEAR);
+}
+
+void
+Serial::SerialImpl::flushOutput ()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException("Serial::flushOutput");
+  }
+  PurgeComm(fd_, PURGE_TXCLEAR);
+}
+
+void
+Serial::SerialImpl::sendBreak (int /*duration*/)
+{
+  THROW (IOException, "sendBreak is not supported on Windows.");
+}
+
+void
+Serial::SerialImpl::setBreak (bool level)
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::setBreak");
+  }
+  if (level) {
+    EscapeCommFunction (fd_, SETBREAK);
+  } else {
+    EscapeCommFunction (fd_, CLRBREAK);
+  }
+}
+
+void
+Serial::SerialImpl::setRTS (bool level)
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::setRTS");
+  }
+  if (level) {
+    EscapeCommFunction (fd_, SETRTS);
+  } else {
+    EscapeCommFunction (fd_, CLRRTS);
+  }
+}
+
+void
+Serial::SerialImpl::setDTR (bool level)
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::setDTR");
+  }
+  if (level) {
+    EscapeCommFunction (fd_, SETDTR);
+  } else {
+    EscapeCommFunction (fd_, CLRDTR);
+  }
+}
+
+bool
+Serial::SerialImpl::waitForChange ()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::waitForChange");
+  }
+  DWORD dwCommEvent;
+
+  if (!SetCommMask(fd_, EV_CTS | EV_DSR | EV_RING | EV_RLSD)) {
+    // Error setting communications mask
+    return false;
+  }
+
+  if (!WaitCommEvent(fd_, &dwCommEvent, NULL)) {
+    // An error occurred waiting for the event.
+    return false;
+  } else {
+    // Event has occurred.
+    return true;
+  }
+}
+
+bool
+Serial::SerialImpl::getCTS ()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::getCTS");
+  }
+  DWORD dwModemStatus;
+  if (!GetCommModemStatus(fd_, &dwModemStatus)) {
+    THROW (IOException, "Error getting the status of the CTS line.");
+  }
+
+  return (MS_CTS_ON & dwModemStatus) != 0;
+}
+
+bool
+Serial::SerialImpl::getDSR ()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::getDSR");
+  }
+  DWORD dwModemStatus;
+  if (!GetCommModemStatus(fd_, &dwModemStatus)) {
+    THROW (IOException, "Error getting the status of the DSR line.");
+  }
+
+  return (MS_DSR_ON & dwModemStatus) != 0;
+}
+
+bool
+Serial::SerialImpl::getRI()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::getRI");
+  }
+  DWORD dwModemStatus;
+  if (!GetCommModemStatus(fd_, &dwModemStatus)) {
+    THROW (IOException, "Error getting the status of the RI line.");
+  }
+
+  return (MS_RING_ON & dwModemStatus) != 0;
+}
+
+bool
+Serial::SerialImpl::getCD()
+{
+  if (is_open_ == false) {
+    throw PortNotOpenedException ("Serial::getCD");
+  }
+  DWORD dwModemStatus;
+  if (!GetCommModemStatus(fd_, &dwModemStatus)) {
+    // Error in GetCommModemStatus;
+    THROW (IOException, "Error getting the status of the CD line.");
+  }
+
+  return (MS_RLSD_ON & dwModemStatus) != 0;
+}
+
+void
+Serial::SerialImpl::readLock()
+{
+  if (WaitForSingleObject(read_mutex, INFINITE) != WAIT_OBJECT_0) {
+    THROW (IOException, "Error claiming read mutex.");
+  }
+}
+
+void
+Serial::SerialImpl::readUnlock()
+{
+  if (!ReleaseMutex(read_mutex)) {
+    THROW (IOException, "Error releasing read mutex.");
+  }
+}
+
+void
+Serial::SerialImpl::writeLock()
+{
+  if (WaitForSingleObject(write_mutex, INFINITE) != WAIT_OBJECT_0) {
+    THROW (IOException, "Error claiming write mutex.");
+  }
+}
+
+void
+Serial::SerialImpl::writeUnlock()
+{
+  if (!ReleaseMutex(write_mutex)) {
+    THROW (IOException, "Error releasing write mutex.");
+  }
+}
+
+#endif // #if defined(_WIN32)
+

lib/serial/src/serial.cc

@@ -0,0 +1,432 @@
+/* Copyright 2012 William Woodall and John Harrison */
+#include <algorithm>
+
+#if !defined(_WIN32) && !defined(__OpenBSD__) && !defined(__FreeBSD__)
+# include <alloca.h>
+#endif
+
+#if defined (__MINGW32__)
+# define alloca __builtin_alloca
+#endif
+
+#include "serial/serial.h"
+
+#ifdef _WIN32
+#include "serial/impl/win.h"
+#else
+#include "serial/impl/unix.h"
+#endif
+
+using std::invalid_argument;
+using std::min;
+using std::numeric_limits;
+using std::vector;
+using std::size_t;
+using std::string;
+
+using serial::Serial;
+using serial::SerialException;
+using serial::IOException;
+using serial::bytesize_t;
+using serial::parity_t;
+using serial::stopbits_t;
+using serial::flowcontrol_t;
+
+class Serial::ScopedReadLock {
+public:
+  ScopedReadLock(SerialImpl *pimpl) : pimpl_(pimpl) {
+    this->pimpl_->readLock();
+  }
+  ~ScopedReadLock() {
+    this->pimpl_->readUnlock();
+  }
+private:
+  // Disable copy constructors
+  ScopedReadLock(const ScopedReadLock&);
+  const ScopedReadLock& operator=(ScopedReadLock);
+
+  SerialImpl *pimpl_;
+};
+
+class Serial::ScopedWriteLock {
+public:
+  ScopedWriteLock(SerialImpl *pimpl) : pimpl_(pimpl) {
+    this->pimpl_->writeLock();
+  }
+  ~ScopedWriteLock() {
+    this->pimpl_->writeUnlock();
+  }
+private:
+  // Disable copy constructors
+  ScopedWriteLock(const ScopedWriteLock&);
+  const ScopedWriteLock& operator=(ScopedWriteLock);
+  SerialImpl *pimpl_;
+};
+
+Serial::Serial (const string &port, uint32_t baudrate, serial::Timeout timeout,
+                bytesize_t bytesize, parity_t parity, stopbits_t stopbits,
+                flowcontrol_t flowcontrol)
+ : pimpl_(new SerialImpl (port, baudrate, bytesize, parity,
+                                           stopbits, flowcontrol))
+{
+  pimpl_->setTimeout(timeout);
+}
+
+Serial::~Serial ()
+{
+  delete pimpl_;
+}
+
+void
+Serial::open ()
+{
+  pimpl_->open ();
+}
+
+void
+Serial::close ()
+{
+  pimpl_->close ();
+}
+
+bool
+Serial::isOpen () const
+{
+  return pimpl_->isOpen ();
+}
+
+size_t
+Serial::available ()
+{
+  return pimpl_->available ();
+}
+
+bool
+Serial::waitReadable ()
+{
+  serial::Timeout timeout(pimpl_->getTimeout ());
+  return pimpl_->waitReadable(timeout.read_timeout_constant);
+}
+
+void
+Serial::waitByteTimes (size_t count)
+{
+  pimpl_->waitByteTimes(count);
+}
+
+size_t
+Serial::read_ (uint8_t *buffer, size_t size)
+{
+  return this->pimpl_->read (buffer, size);
+}
+
+size_t
+Serial::read (uint8_t *buffer, size_t size)
+{
+  ScopedReadLock lock(this->pimpl_);
+  return this->pimpl_->read (buffer, size);
+}
+
+size_t
+Serial::read (std::vector<uint8_t> &buffer, size_t size)
+{
+  ScopedReadLock lock(this->pimpl_);
+  uint8_t *buffer_ = new uint8_t[size];
+  size_t bytes_read = 0;
+
+  try {
+    bytes_read = this->pimpl_->read (buffer_, size);
+  }
+  catch (const std::exception &e) {
+    delete[] buffer_;
+    throw;
+  }
+
+  buffer.insert (buffer.end (), buffer_, buffer_+bytes_read);
+  delete[] buffer_;
+  return bytes_read;
+}
+
+size_t
+Serial::read (std::string &buffer, size_t size)
+{
+  ScopedReadLock lock(this->pimpl_);
+  uint8_t *buffer_ = new uint8_t[size];
+  size_t bytes_read = 0;
+  try {
+    bytes_read = this->pimpl_->read (buffer_, size);
+  }
+  catch (const std::exception &e) {
+    delete[] buffer_;
+    throw;
+  }
+  buffer.append (reinterpret_cast<const char*>(buffer_), bytes_read);
+  delete[] buffer_;
+  return bytes_read;
+}
+
+string
+Serial::read (size_t size)
+{
+  std::string buffer;
+  this->read (buffer, size);
+  return buffer;
+}
+
+size_t
+Serial::readline (string &buffer, size_t size, string eol)
+{
+  ScopedReadLock lock(this->pimpl_);
+  size_t eol_len = eol.length ();
+  uint8_t *buffer_ = static_cast<uint8_t*>
+                              (alloca (size * sizeof (uint8_t)));
+  size_t read_so_far = 0;
+  while (true)
+  {
+    size_t bytes_read = this->read_ (buffer_ + read_so_far, 1);
+    read_so_far += bytes_read;
+    if (bytes_read == 0) {
+      break; // Timeout occured on reading 1 byte
+    }
+    if(read_so_far < eol_len) continue;
+    if (string (reinterpret_cast<const char*>
+         (buffer_ + read_so_far - eol_len), eol_len) == eol) {
+      break; // EOL found
+    }
+    if (read_so_far == size) {
+      break; // Reached the maximum read length
+    }
+  }
+  buffer.append(reinterpret_cast<const char*> (buffer_), read_so_far);
+  return read_so_far;
+}
+
+string
+Serial::readline (size_t size, string eol)
+{
+  std::string buffer;
+  this->readline (buffer, size, eol);
+  return buffer;
+}
+
+vector<string>
+Serial::readlines (size_t size, string eol)
+{
+  ScopedReadLock lock(this->pimpl_);
+  std::vector<std::string> lines;
+  size_t eol_len = eol.length ();
+  uint8_t *buffer_ = static_cast<uint8_t*>
+    (alloca (size * sizeof (uint8_t)));
+  size_t read_so_far = 0;
+  size_t start_of_line = 0;
+  while (read_so_far < size) {
+    size_t bytes_read = this->read_ (buffer_+read_so_far, 1);
+    read_so_far += bytes_read;
+    if (bytes_read == 0) {
+      if (start_of_line != read_so_far) {
+        lines.push_back (
+          string (reinterpret_cast<const char*> (buffer_ + start_of_line),
+            read_so_far - start_of_line));
+      }
+      break; // Timeout occured on reading 1 byte
+    }
+    if(read_so_far < eol_len) continue;
+    if (string (reinterpret_cast<const char*>
+         (buffer_ + read_so_far - eol_len), eol_len) == eol) {
+      // EOL found
+      lines.push_back(
+        string(reinterpret_cast<const char*> (buffer_ + start_of_line),
+          read_so_far - start_of_line));
+      start_of_line = read_so_far;
+    }
+    if (read_so_far == size) {
+      if (start_of_line != read_so_far) {
+        lines.push_back(
+          string(reinterpret_cast<const char*> (buffer_ + start_of_line),
+            read_so_far - start_of_line));
+      }
+      break; // Reached the maximum read length
+    }
+  }
+  return lines;
+}
+
+size_t
+Serial::write (const string &data)
+{
+  ScopedWriteLock lock(this->pimpl_);
+  return this->write_ (reinterpret_cast<const uint8_t*>(data.c_str()),
+                       data.length());
+}
+
+size_t
+Serial::write (const std::vector<uint8_t> &data)
+{
+  ScopedWriteLock lock(this->pimpl_);
+  return this->write_ (&data[0], data.size());
+}
+
+size_t
+Serial::write (const uint8_t *data, size_t size)
+{
+  ScopedWriteLock lock(this->pimpl_);
+  return this->write_(data, size);
+}
+
+size_t
+Serial::write_ (const uint8_t *data, size_t length)
+{
+  return pimpl_->write (data, length);
+}
+
+void
+Serial::setPort (const string &port)
+{
+  ScopedReadLock rlock(this->pimpl_);
+  ScopedWriteLock wlock(this->pimpl_);
+  bool was_open = pimpl_->isOpen ();
+  if (was_open) close();
+  pimpl_->setPort (port);
+  if (was_open) open ();
+}
+
+string
+Serial::getPort () const
+{
+  return pimpl_->getPort ();
+}
+
+void
+Serial::setTimeout (serial::Timeout &timeout)
+{
+  pimpl_->setTimeout (timeout);
+}
+
+serial::Timeout
+Serial::getTimeout () const {
+  return pimpl_->getTimeout ();
+}
+
+void
+Serial::setBaudrate (uint32_t baudrate)
+{
+  pimpl_->setBaudrate (baudrate);
+}
+
+uint32_t
+Serial::getBaudrate () const
+{
+  return uint32_t(pimpl_->getBaudrate ());
+}
+
+void
+Serial::setBytesize (bytesize_t bytesize)
+{
+  pimpl_->setBytesize (bytesize);
+}
+
+bytesize_t
+Serial::getBytesize () const
+{
+  return pimpl_->getBytesize ();
+}
+
+void
+Serial::setParity (parity_t parity)
+{
+  pimpl_->setParity (parity);
+}
+
+parity_t
+Serial::getParity () const
+{
+  return pimpl_->getParity ();
+}
+
+void
+Serial::setStopbits (stopbits_t stopbits)
+{
+  pimpl_->setStopbits (stopbits);
+}
+
+stopbits_t
+Serial::getStopbits () const
+{
+  return pimpl_->getStopbits ();
+}
+
+void
+Serial::setFlowcontrol (flowcontrol_t flowcontrol)
+{
+  pimpl_->setFlowcontrol (flowcontrol);
+}
+
+flowcontrol_t
+Serial::getFlowcontrol () const
+{
+  return pimpl_->getFlowcontrol ();
+}
+
+void Serial::flush ()
+{
+  ScopedReadLock rlock(this->pimpl_);
+  ScopedWriteLock wlock(this->pimpl_);
+  pimpl_->flush ();
+}
+
+void Serial::flushInput ()
+{
+  ScopedReadLock lock(this->pimpl_);
+  pimpl_->flushInput ();
+}
+
+void Serial::flushOutput ()
+{
+  ScopedWriteLock lock(this->pimpl_);
+  pimpl_->flushOutput ();
+}
+
+void Serial::sendBreak (int duration)
+{
+  pimpl_->sendBreak (duration);
+}
+
+void Serial::setBreak (bool level)
+{
+  pimpl_->setBreak (level);
+}
+
+void Serial::setRTS (bool level)
+{
+  pimpl_->setRTS (level);
+}
+
+void Serial::setDTR (bool level)
+{
+  pimpl_->setDTR (level);
+}
+
+bool Serial::waitForChange()
+{
+  return pimpl_->waitForChange();
+}
+
+bool Serial::getCTS ()
+{
+  return pimpl_->getCTS ();
+}
+
+bool Serial::getDSR ()
+{
+  return pimpl_->getDSR ();
+}
+
+bool Serial::getRI ()
+{
+  return pimpl_->getRI ();
+}
+
+bool Serial::getCD ()
+{
+  return pimpl_->getCD ();
+}

musique/errors.cc

@@ -150,6 +150,7 @@ std::ostream& operator<<(std::ostream& os, Error const& err)
 		[](errors::Unexpected_Keyword const&)                   { return "Unexpected keyword"; },
 		[](errors::Unrecognized_Character const&)               { return "Unrecognized character"; },
 		[](errors::Wrong_Arity_Of const&)                       { return "Different arity then expected"; },
+		[](errors::Temporary_Error_Serial_Port const&)          { return "Serial port connection failed"; },
 		[](errors::internal::Unexpected_Token const&)           { return "Unexpected token"; },
 		[](errors::Arithmetic const& err)                       {
 			switch (err.type) {
@@ -271,6 +272,15 @@ std::ostream& operator<<(std::ostream& os, Error const& err)
 			}
 		},
 
+		[&](errors::Temporary_Error_Serial_Port const& error) {
+			os << "Error serial port: " << error.message << '\n';
+			os << "\n";
+
+			pretty::begin_comment(os);
+			os << "This error message is temporary\n";
+			pretty::end(os);
+		},
+
 		[&](errors::Unsupported_Types_For const& err) {
 			switch (err.type) {
 			break; case errors::Unsupported_Types_For::Function:

musique/errors.hh

@@ -169,6 +169,11 @@ namespace errors
 		};
 	}
 
+	struct Temporary_Error_Serial_Port
+	{
+		std::string message;
+	};
+
 	/// All possible error types
 	using Details = std::variant<
 		Arithmetic,
@@ -180,6 +185,7 @@ namespace errors
 		Not_Callable,
 		Operation_Requires_Midi_Connection,
 		Out_Of_Range,
+		Temporary_Error_Serial_Port,
 		Undefined_Operator,
 		Unexpected_Empty_Source,
 		Unexpected_Keyword,

musique/interpreter/builtin_functions.cc

@@ -1615,6 +1615,18 @@ static Result<Value> builtin_peers(Interpreter &interpreter, std::vector<Value>)
 	return Number(interpreter.starter.peers());
 }
 
+static std::optional<Error> ensure_serial_available(Interpreter &interpreter)
+{
+	if (interpreter.serialport->error_message->empty())
+		return std::nullopt;
+
+	return Error{
+		errors::Temporary_Error_Serial_Port {
+			.message = *std::exchange(interpreter.serialport->error_message, std::nullopt),
+		}
+	};
+}
+
 //: Ustaw wyjście MIDI w danym kontekście na dany port
 //:
 //: Dostępne opcje to numer portu oraz symbol `'virtual` tworzacy port wirtualny MIDI
@@ -1638,6 +1650,7 @@ static Result<Value> builtin_port(Interpreter &interpreter, std::vector<Value> a
 			if (port == interpreter.current_context->port) {
 				return std::visit(Overloaded {
 					[](midi::connections::Virtual_Port) { return Value(Symbol("virtual")); },
+					[](midi::connections::Serial_Port)  { return Value(Symbol("serial")); },
 					[](midi::connections::Established_Port port) { return Value(Number(port)); },
 				}, key);
 			}
@@ -1658,12 +1671,69 @@ static Result<Value> builtin_port(Interpreter &interpreter, std::vector<Value> a
 			return {};
 		}
 
+		if (port_type == "serial") {
+			Try(ensure_serial_available(interpreter));
+			if (auto it = Context::established_connections.find(midi::connections::Serial_Port{}); it != Context::established_connections.end()) {
+				interpreter.current_context->port = it->second;
+				return {};
+			}
+
+			auto serial = std::make_shared<midi::Serial_Midi>();
+			serial->serialport = interpreter.serialport;
+			interpreter.current_context->port = serial;
+			Context::established_connections[midi::connections::Serial_Port{}] = serial;
+			return {};
+		}
+
 		unimplemented();
 	}
 
 	unimplemented();
 }
 
+
+//: Zwróć wybraną wartość z dedykowanego urządzenia.
+//:
+//: Pierwszy parametr to numer wejścia lub jego nazwa (kolejno: `'knob`, `'knob2`, `'btn1`, `'btn2`, `'btn3`)
+//: Kolejne parametry tworzą zbiór z którego równomiernie wejście będzie wybierane na podstawie wartości
+static Result<Value> builtin_ctrl(Interpreter &interpreter, std::vector<Value> args)
+{
+	if (args.empty()) {
+	error:
+		return errors::Unsupported_Types_For {
+			.type = errors::Unsupported_Types_For::Function,
+			.name = "ctrl",
+			.possibilities = {
+			},
+		};
+	}
+	Try(ensure_serial_available(interpreter));
+
+	auto input_index = 0;
+	if (auto a = get_if<Number>(args.front())) {
+		input_index = a->floor().as_int();
+	} else if (auto a = get_if<Symbol>(args.front())) {
+		static std::string_view names[] = { "knob1", "knob2", "btn1", "btn2", "btn3" };
+
+		if (auto matched = std::find(std::begin(names), std::end(names), *a); matched != std::end(names)) {
+			input_index = std::distance(std::begin(names), matched);
+		} else {
+			goto error;
+		}
+	} else {
+		goto error;
+	}
+
+	auto const value = interpreter.serialport->get(input_index);
+	if (args.size() == 1) {
+		return value;
+	}
+
+	auto const arguments = Try(flatten(interpreter, std::span(args).subspan(1)));
+	auto const arguments_index = (Number(arguments.size()) * value).floor().as_int();
+	return arguments[std::min(arguments_index, Number::value_type(arguments.size()-1))];
+}
+
 void Interpreter::register_builtin_functions()
 {
 	auto &global = *Env::global;
@@ -1672,6 +1742,7 @@ void Interpreter::register_builtin_functions()
 	global.force_define("call",           builtin_call);
 	global.force_define("ceil",           builtin_ceil);
 	global.force_define("chord",          builtin_chord);
+	global.force_define("ctrl",           builtin_ctrl);
 	global.force_define("digits",         builtin_digits);
 	global.force_define("down",           builtin_down);
 	global.force_define("duration",       builtin_duration);

musique/interpreter/context.cc

@@ -13,18 +13,15 @@ std::chrono::duration<float> Context::length_to_duration(std::optional<Number> l
 	return std::chrono::duration<float>(float(len.num * (60.f / (float(bpm) / 4))) / len.den);
 }
 
-template<>
+std::size_t std::hash<midi::connections::Key>::operator()(midi::connections::Key const& value) const
-struct std::hash<midi::connections::Key>
 {
-	std::size_t operator()(midi::connections::Key const& value) const
-	{
 	using namespace midi::connections;
 	return hash_combine(value.index(), std::visit(Overloaded {
 		[](Virtual_Port) { return 0u; },
+		[](Serial_Port) { return 0u; },
 		[](Established_Port port) { return port; },
 	}, value));
-	}
+}
-};
 
 std::unordered_map<midi::connections::Key, std::shared_ptr<midi::Connection>> Context::established_connections;
 

musique/interpreter/context.hh

@@ -18,7 +18,12 @@ namespace midi::connections
 		bool operator==(Virtual_Port const&) const = default;
 	};
 
-	using Key = std::variant<Established_Port, Virtual_Port>;
+	struct Serial_Port
+	{
+		bool operator==(Serial_Port const&) const = default;
+	};
+
+	using Key = std::variant<Established_Port, Virtual_Port, Serial_Port>;
 }
 
 /// Context holds default values for music related actions
@@ -55,4 +60,10 @@ struct Context
 	std::shared_ptr<Context> parent;
 };
 
+template<>
+struct std::hash<midi::connections::Key>
+{
+	std::size_t operator()(midi::connections::Key const& value) const;
+};
+
 #endif

musique/interpreter/interpreter.hh

@@ -6,6 +6,7 @@
 #include <musique/midi/midi.hh>
 #include <musique/value/value.hh>
 #include <unordered_map>
+#include <musique/serialport/serialport.hh>
 
 /// Given program tree evaluates it into Value
 struct Interpreter
@@ -22,6 +23,8 @@ struct Interpreter
 
 	std::function<std::optional<Error>(Interpreter&, Value)> default_action;
 
+	std::shared_ptr<serialport::State> serialport;
+
 	Starter starter;
 
 	Interpreter();

musique/main.cc

@@ -17,6 +17,9 @@
 #include <musique/try.hh>
 #include <musique/unicode.hh>
 #include <musique/value/block.hh>
+#include <musique/serialport/serialport.hh>
+
+#include <serial/serial.h>
 
 #ifdef _WIN32
 extern "C" {
@@ -86,6 +89,7 @@ static T pop(std::span<char const*> &span)
 		"  Sy Brand, https://sybrand.ink/, creator of tl::expected https://github.com/TartanLlama/expected\n"
 		"  Justine Tunney, https://justinetunney.com, creator of bestline readline library https://github.com/jart/bestline\n"
 		"  Gary P. Scavone, http://www.music.mcgill.ca/~gary/, creator of rtmidi https://github.com/thestk/rtmidi\n"
+		"  W. Wodall and J. Harrison, creators of https://github.com/wjwwood/serial\n"
 		"  Creators of ableton/link, https://github.com/Ableton/link\n"
 		;
 	std::exit(1);
@@ -161,6 +165,9 @@ struct Runner
 	static inline Runner *the;
 
 	Interpreter interpreter;
+	std::shared_ptr<serialport::State> serial_state;
+	std::thread serial_event_loop;
+	std::atomic<bool> serial_event_loop_stop = false;
 
 	/// Setup interpreter and midi connection with given port
 	explicit Runner()
@@ -169,6 +176,15 @@ struct Runner
 		ensure(the == nullptr, "Only one instance of runner is supported");
 		the = this;
 
+		/// Setup communication over serial
+		serial_state = std::make_shared<serialport::State>();
+		interpreter.serialport = serial_state;
+		serialport::initialize();
+
+		serial_event_loop = std::thread([this]() mutable {
+			serialport::event_loop(serial_event_loop_stop, *serial_state);
+		});
+
 		interpreter.current_context->connect(std::nullopt);
 
 		Env::global->force_define("say", +[](Interpreter &interpreter, std::vector<Value> args) -> Result<Value> {
@@ -187,6 +203,13 @@ struct Runner
 	Runner& operator=(Runner const&) = delete;
 	Runner& operator=(Runner &&) = delete;
 
+	~Runner() {
+		serial_event_loop_stop = true;
+		if (serial_event_loop.joinable()) {
+			serial_event_loop.join();
+		}
+	}
+
 	/// Consider given input file as new definition of parametless function
 	///
 	/// Useful for deffering execution of files to the point when all configuration of midi devices

musique/midi/midi.hh

@@ -4,6 +4,7 @@
 #include <functional>
 #include <optional>
 #include <string>
+#include <musique/serialport/serialport.hh>
 
 // Documentation of midi messages available at http://midi.teragonaudio.com/tech/midispec.htm
 namespace midi
@@ -22,6 +23,20 @@ namespace midi
 		void send_all_sounds_off(uint8_t channel);
 	};
 
+	struct Serial_Midi : Connection
+	{
+		~Serial_Midi() = default;
+
+		bool supports_output() const override;
+
+		void send_note_on (uint8_t channel, uint8_t note_number, uint8_t velocity) override;
+		void send_note_off(uint8_t channel, uint8_t note_number, uint8_t velocity) override;
+		void send_program_change(uint8_t channel, uint8_t program) override;
+		void send_controller_change(uint8_t channel, uint8_t controller_number, uint8_t value) override;
+
+		std::shared_ptr<serialport::State> serialport;
+	};
+
 	struct Rt_Midi : Connection
 	{
 		~Rt_Midi() override = default;

musique/midi/serial_midi.cc

@@ -0,0 +1,29 @@
+#include <musique/errors.hh>
+#include <musique/midi/midi.hh>
+#include <musique/serialport/serialport.hh>
+#include <musique/interpreter/interpreter.hh>
+
+bool midi::Serial_Midi::supports_output() const 
+{
+	return true;
+}
+
+void midi::Serial_Midi::send_note_on (uint8_t channel, uint8_t note_number, uint8_t velocity) 
+{	
+	serialport->send(0, note_number);
+}
+
+void midi::Serial_Midi::send_note_off(uint8_t channel, uint8_t note_number, uint8_t velocity) 
+{
+	serialport->send(1, note_number);
+}
+
+void midi::Serial_Midi::send_program_change(uint8_t channel, uint8_t program) 
+{
+	unimplemented();
+}
+
+void midi::Serial_Midi::send_controller_change(uint8_t channel, uint8_t controller_number, uint8_t value) 
+{
+	unimplemented();
+}

musique/serialport/serialport.cc

@@ -0,0 +1,117 @@
+#include <musique/serialport/serialport.hh>
+#include <iostream>
+#include <thread>
+#include <serial/serial.h>
+
+namespace serialport{
+    int State::test(){
+        return 5;
+    }
+
+    Number State::get(unsigned position) const
+    {
+        return Number(state[position], MAX_VALUE);
+    }
+    void State::set(unsigned position, std::uint32_t value)
+    {
+        state[position] = value;
+        return;
+    }
+    void State::send(uint8_t message_type, uint8_t note_number)
+    {
+        if((head + 1) % 128 != tail){
+            message_data[head] = note_number;
+            message_types[head] = message_type;
+            head = (head + 1)%128;
+        }
+        return;
+    }
+
+    void initialize()
+    {
+        // std::jthread testowy = std::jthread();
+        return;
+    }
+
+    std::uint8_t get_byte()
+    {
+        return 8;
+    }
+
+    void event_loop(std::atomic<bool> &stop, State &state)
+    {
+        while(!stop){
+            try {
+                /// Search for the right device
+                auto const ports = serial::list_ports();
+                /*for (serial::PortInfo const& port : ports) {
+                    std::cout << "Port: " << port.port << '\n';
+                    std::cout << "Description: " << port.description << '\n';
+                    std::cout << "Hardware ID: " << port.hardware_id << '\n';
+                }*/
+
+                int found_port = 0;
+                std::string connection_port = "";
+                while(found_port == 0){
+                    for (serial::PortInfo const& port : ports) {
+                        if(port.description.find("STM32")){
+                            connection_port = port.port;
+                            found_port = 1;
+                            break;
+                        }
+                    }
+                }
+
+
+                /// Start connection
+                serial::Serial serial_conn(connection_port, 115200, serial::Timeout::simpleTimeout(1000));
+
+
+
+                /*if(serial_conn.isOpen())
+                    std::cout << "[SERIAL] Serial open\n";
+                else
+                    std::cout << "[SERIAL] Serial not open\n";
+
+                std::cout << "[SERIAL] commence serial communication\n";
+                */
+
+                /// Set up received data buffer
+
+                while(1){
+                    /// After serial connection established
+
+                    //serial_conn.flushInput();
+
+                    std::string result = serial_conn.readline(65536, "\n");
+                    int control = result.at(0);
+                    uint32_t value = std::stoi(result.substr(1, 4), nullptr, 10);
+
+                    state.set(control - 65, value);
+
+                    while(state.head != state.tail){
+                        if(state.message_types[state.tail] == 0){
+                            uint8_t bytes_to_send[3] = {0b10010000, state.message_data[state.tail], 0b00000000};
+                            serial_conn.write(bytes_to_send, 3);
+                        }else if(state.message_types[state.tail] == 1){
+                            uint8_t bytes_to_send[3] = {0b10000000, state.message_data[state.tail], 0b00000000};
+                            serial_conn.write(bytes_to_send, 3);
+                        }
+                        state.tail = (state.tail + 1) % 128;
+                    }
+                }
+            } catch (std::exception &e) {
+                /// No connection to the device
+							state.error_message = e.what();
+                // std::cerr << "Unhandled Exception: " << e.what() << '\n';
+								//
+							// Sleep until error message is cleared since we don't need to try always to reconnect
+							while (!state.error_message->empty()) {
+								std::this_thread::yield();
+							}
+            }
+        }
+        return;
+    }
+}
+

musique/serialport/serialport.hh

@@ -0,0 +1,36 @@
+#ifndef MUSIQUE_SERIALPORT_SERIALPORT_HH
+#define MUSIQUE_SERIALPORT_SERIALPORT_HH
+
+#include <array>
+#include <atomic>
+#include <cstdint>
+#include <memory>
+#include <musique/value/number.hh>
+#include <optional>
+#include <serial/serial.h>
+#include <string>
+
+namespace serialport{
+    constexpr std::size_t MAX_STATE_COUNT = 8;
+    constexpr std::size_t MAX_VALUE = 4095;
+    struct State{
+        std::array<std::atomic<std::uint32_t>, MAX_STATE_COUNT> state;
+        std::array<std::atomic<std::uint8_t>, 128> message_types;
+        std::array<std::atomic<std::uint8_t>, 128> message_data;
+        std::atomic<std::uint8_t> head = 0;
+        std::atomic<std::uint8_t> tail = 0;
+
+				std::optional<std::string> error_message;
+
+        int test();
+        Number get(unsigned position) const;
+        void send(uint8_t message_type, uint8_t note_number);
+        void set(unsigned position, std::uint32_t value);
+    };
+
+    void initialize();
+    void event_loop(std::atomic<bool> &stop, State &state);
+    std::uint8_t get_byte();
+}
+
+#endif //MUSIQUE_SERIALPORT_SERIALPORT_HH

scripts/build.mk

@@ -1,5 +1,21 @@
 Release_Obj=$(addprefix bin/$(os)/,$(Obj))
 
+# http://www.music.mcgill.ca/~gary/rtmidi/#compiling
+bin/$(os)/rtmidi.o: lib/rtmidi/RtMidi.cpp lib/rtmidi/RtMidi.h
+	@echo "CXX $@"
+	@$(CXX) $< -c -O2 -o $@ $(CPPFLAGS) -std=c++20
+
+bin/$(os)/serial/serial.o: lib/serial/src/serial.cc
+	$(CXX) $^ -c -O2 -o $@ $(CPPFLAGS) -std=c++20
+
+bin/$(os)/serial/$(Serial_Impl).o: lib/serial/src/impl/$(Serial_Impl).cc
+	$(CXX) $^ -c -O2 -o $@ $(CPPFLAGS) -std=c++20
+
+bin/$(os)/serial/$(Serial_List_Ports).o: lib/serial/src/impl/list_ports/$(Serial_List_Ports).cc
+	$(CXX) $^ -c -O2 -o $@ $(CPPFLAGS) -std=c++20
+
+Serial_Obj=bin/$(os)/serial/serial.o bin/$(os)/serial/$(Serial_Impl).o bin/$(os)/serial/$(Serial_List_Ports).o
+
 bin/$(os)/bestline.o: lib/bestline/bestline.c lib/bestline/bestline.h
 	@echo "CC $@"
 	@$(CC) $< -c -O3 -o $@
@@ -8,15 +24,15 @@ bin/$(os)/%.o: musique/%.cc
 	@echo "CXX $@"
 	@$(CXX) $(CXXFLAGS) $(RELEASE_FLAGS) $(CPPFLAGS) -o $@ $< -c
 
-bin/$(os)/$(Target): $(Release_Obj) bin/$(os)/main.o bin/$(os)/rtmidi.o $(Bestline)
+bin/$(os)/$(Target): $(Release_Obj) bin/$(os)/main.o bin/$(os)/rtmidi.o $(Bestline) $(Serial_Obj)
 	@echo "CXX $@"
-	@$(CXX) $(CXXFLAGS) $(RELEASE_FLAGS) $(CPPFLAGS) -o $@ $(Release_Obj) bin/$(os)/rtmidi.o $(Bestline) $(LDFLAGS) $(LDLIBS)
+	@$(CXX) $(CXXFLAGS) $(RELEASE_FLAGS) $(CPPFLAGS) -o $@ $(Release_Obj) bin/$(os)/rtmidi.o $(Bestline) $(Serial_Obj) $(LDFLAGS) $(LDLIBS)
 
 Debug_Obj=$(addprefix bin/$(os)/debug/,$(Obj))
 
-bin/$(os)/debug/$(Target): $(Debug_Obj) bin/$(os)/debug/main.o bin/$(os)/rtmidi.o $(Bestline)
+bin/$(os)/debug/$(Target): $(Debug_Obj) bin/$(os)/debug/main.o bin/$(os)/rtmidi.o $(Bestline) $(Serial_Obj)
 	@echo "CXX $@"
-	@$(CXX) $(CXXFLAGS) $(DEBUG_FLAGS) $(CPPFLAGS) -o $@ $(Debug_Obj) bin/$(os)/rtmidi.o $(Bestline) $(LDFLAGS) $(LDLIBS)
+	@$(CXX) $(CXXFLAGS) $(DEBUG_FLAGS) $(CPPFLAGS) -o $@ $(Debug_Obj) bin/$(os)/rtmidi.o $(Bestline) $(Serial_Obj) $(LDFLAGS) $(LDLIBS)
 
 bin/$(os)/debug/%.o: musique/%.cc
 	@echo "CXX $@"

scripts/linux.mk

@@ -1,6 +1,9 @@
 CC=gcc
 CXX=g++
 CPPFLAGS:=$(CPPFLAGS) -D __LINUX_ALSA__ -D LINK_PLATFORM_LINUX
-LDLIBS:=-lasound $(LDLIBS) -static-libgcc -static-libstdc++
+LDLIBS:=-lasound -lrt $(LDLIBS) -static-libgcc -static-libstdc++
 Bestline=bin/$(os)/bestline.o
 Target=musique
+Serial_List_Ports=list_ports_linux
+Serial_Impl=unix
+

scripts/macos.mk

@@ -1,7 +1,9 @@
 CC=clang
 CXX=clang++
 CPPFLAGS:=$(CPPFLAGS) -D __MACOSX_CORE__ -D LINK_PLATFORM_MACOSX
-LDLIBS:=-framework CoreMIDI -framework CoreAudio -framework CoreFoundation $(LDLIBS)
+LDLIBS:=-framework IOKit -framework CoreMIDI -framework CoreAudio -framework CoreFoundation $(LDLIBS)
 Release_Obj=$(addprefix bin/,$(Obj))
 Bestline=bin/$(os)/bestline.o
 Target=musique
+Serial_List_Ports=list_ports_osx
+Serial_Impl=unix

scripts/windows.mk

@@ -1,5 +1,7 @@
 CC=i686-w64-mingw32-gcc
 CXX=i686-w64-mingw32-g++
 CPPFLAGS:=$(CPPFLAGS) -D__WINDOWS_MM__ -D LINK_PLATFORM_WINDOWS
-LDLIBS:=-lwinmm -liphlpapi -lws2_32 $(LDLIBS) -static-libgcc -static-libstdc++ -static
+LDLIBS:=-lsetupapi -lhid -lwinmm -liphlpapi -lws2_32 $(LDLIBS) -static-libgcc -static-libstdc++ -static
 Target=musique.exe
+Serial_List_Ports=list_ports_win
+Serial_Impl=win