consolidate all repos to one for archive

semester_5/nacrtovanje_racunalniskih_sistemov/naloga_3_2_cli/include/serial.h

@@ -0,0 +1,16 @@
+#pragma once
+#include <cstdint>
+
+class serial
+{
+public:
+  serial();
+  ~serial();
+  bool init(const char *path);
+  int swrite(uint8_t *data, int size);
+  int sread(uint8_t *data, int size);
+  int sioctl();
+
+private:
+  int serial_port = 0;
+};

semester_5/nacrtovanje_racunalniskih_sistemov/naloga_3_2_cli/main.cpp

@@ -0,0 +1,31 @@
+#include "serial.h"
+#include <string>
+#include <iostream>
+#include <string.h>
+
+int main()
+{
+  serial s;
+  if (!s.init("/dev/ttyACM0"))
+  {
+    return 1;
+  }
+
+  printf("Input a number for brightned: ");
+
+  int brightness = 0;
+  std::cin >> brightness;
+  if (brightness > 100)
+  {
+    brightness = 100;
+  }
+  else if (brightness < 0)
+  {
+    brightness = 0;
+  }
+  uint8_t txbuff = brightness;
+
+  s.swrite(&txbuff, 1);
+
+  return 0; // success
+};

semester_5/nacrtovanje_racunalniskih_sistemov/naloga_3_2_cli/makefile

@@ -0,0 +1,27 @@
+CC=g++
+
+CFLAGS= -std=c++23
+
+INCLUDE_DIR= include
+
+SRC_DIR= src
+
+# Get all cpp files from src directory
+SRCS := $(wildcard $(SRC_DIR)/*.cpp)
+
+all: main
+
+main:  main.cpp $(SRCS)
+	$(CC) $(CFLAGS) -O3 -I$(INCLUDE_DIR) $(SRCS) main.cpp -o main
+
+debug:  main.cpp $(SRCS)
+	$(CC) $(CFLAGS) -I$(INCLUDE_DIR) $(SRCS) -g main.cpp -o main
+
+run: main
+	./main
+
+zip:
+	zip -r main.zip main.cpp $(INCLUDE_DIR) $(SRC_DIR) makefile
+
+clean:
+	rm main

semester_5/nacrtovanje_racunalniskih_sistemov/naloga_3_2_cli/src/serial.cpp

@@ -0,0 +1,97 @@
+#include "serial.h"
+
+// C library headers
+#include <stdio.h>
+#include <string.h>
+
+// Linux headers
+#include <fcntl.h>   // Contains file controls like O_RDWR
+#include <errno.h>   // Error integer and strerror() function
+#include <termios.h> // Contains POSIX terminal control definitions
+#include <unistd.h>  // write(), read(), close()
+#include <sys/ioctl.h>
+
+serial::serial()
+{
+}
+
+serial::~serial()
+{
+  close(serial_port);
+}
+
+bool serial::init(const char *path)
+{
+  // Open the serial port. Change device path as needed (currently set to an standard FTDI USB-UART cable type device)
+  serial_port = open(path, O_RDWR);
+
+  if (serial_port < 0)
+  {
+    printf("Error %i from open: %s\n", errno, strerror(errno));
+    return false;
+  }
+  // Create new termios struct, we call it 'tty' for convention
+  struct termios tty;
+
+  // Read in existing settings, and handle any error
+  if (tcgetattr(serial_port, &tty) != 0)
+  {
+    printf("Error %i from tcgetattr: %s\n", errno, strerror(errno));
+    return false;
+  }
+
+  tty.c_cflag &= ~PARENB;        // Clear parity bit, disabling parity (most common)
+  tty.c_cflag &= ~CSTOPB;        // Clear stop field, only one stop bit used in communication (most common)
+  tty.c_cflag &= ~CSIZE;         // Clear all bits that set the data size
+  tty.c_cflag |= CS8;            // 8 bits per byte (most common)
+  tty.c_cflag &= ~CRTSCTS;       // Disable RTS/CTS hardware flow control (most common)
+  tty.c_cflag |= CREAD | CLOCAL; // Turn on READ & ignore ctrl lines (CLOCAL = 1)
+
+  tty.c_lflag &= ~ICANON;
+  tty.c_lflag &= ~ECHO;                                                        // Disable echo
+  tty.c_lflag &= ~ECHOE;                                                       // Disable erasure
+  tty.c_lflag &= ~ECHONL;                                                      // Disable new-line echo
+  tty.c_lflag &= ~ISIG;                                                        // Disable interpretation of INTR, QUIT and SUSP
+  tty.c_iflag &= ~(IXON | IXOFF | IXANY);                                      // Turn off s/w flow ctrl
+  tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL); // Disable any special handling of received bytes
+
+  tty.c_oflag &= ~OPOST; // Prevent special interpretation of output bytes (e.g. newline chars)
+  tty.c_oflag &= ~ONLCR; // Prevent conversion of newline to carriage return/line feed
+  // tty.c_oflag &= ~OXTABS; // Prevent conversion of tabs to spaces (NOT PRESENT ON LINUX)
+  // tty.c_oflag &= ~ONOEOT; // Prevent removal of C-d chars (0x004) in output (NOT PRESENT ON LINUX)
+
+  tty.c_cc[VTIME] = 10; // Wait for up to 1s (10 deciseconds), returning as soon as any data is received.
+  tty.c_cc[VMIN] = 0;
+
+  // Set in/out baud rate to be 9600
+  cfsetispeed(&tty, 48000);
+  cfsetospeed(&tty, 48000);
+
+  // Save tty settings, also checking for error
+  if (tcsetattr(serial_port, TCSANOW, &tty) != 0)
+  {
+    printf("Error %i from tcsetattr: %s\n", errno, strerror(errno));
+    return false;
+  }
+
+  return true;
+  // Here we assume we received ASCII data, but you might be sending raw bytes (in that case, don't try and
+  // print it to the screen like this!)
+}
+
+int serial::swrite(uint8_t *data, int size)
+{
+  return write(serial_port, data, size);
+}
+
+int serial::sread(uint8_t *data, int size)
+{
+  return read(serial_port, data, size);
+}
+
+int serial::sioctl()
+{
+  int bytes;
+  ioctl(serial_port, FIONREAD, &bytes);
+  return bytes;
+}