main.c File Reference

Main entry point for the TTK4155 Node 1 firmware. More...

#include <stddef.h>
#include <stdlib.h>
#include <util/delay.h>
#include "can.h"
#include "controller.h"
#include "io.h"
#include "log.h"
#include "menu.h"
#include "spi.h"
#include "timer.h"
#include "uart.h"
#include "utils.h"
#include "xmem.h"

Go to the source code of this file.

Macros
#define	BAUD   9600

Functions
	LOG_MODULE_DEFINE ("main")
int	main ()

Variables
struct USART_config	config = {BAUD, F_CPU}
struct io_joystick_device	joy = {0, 1, 67, 69, 247, 247}
struct io_oled_device	oled = {SSB2}
struct io_avr_device	avr = {SSB3}
struct can_device	can = {SSE2}
struct io_joystick_position	pos
struct io_avr_buttons	btn
struct CAN_frame	dummy_msg
static struct menu_item	settings_menu []
static struct menu_item	main_menu []
struct menu_cfg	menu
struct control_state	ctrl = {0}
static enum page_id	last_state = PAGE_WELCOME

Detailed Description

Main entry point for the TTK4155 Node 1 firmware.

This file initializes all peripherals and modules, then enters the main game loop. The loop handles:

• Reading input from the I/O board
• Sending and receiving state-information over CAN
• Updating menu states and page transitions
• Managing game start and game over conditions

Modules used:

• IO
• USART
• SPI
• TIMER
• CAN
• CONTROLLER
• MENU
• XMEM
• UTILS
• LOG

Definition in file main.c.

Macro Definition Documentation

BAUD

#define BAUD   9600

Definition at line 42 of file main.c.

Function Documentation

LOG_MODULE_DEFINE()

LOG_MODULE_DEFINE

(

"main"

)

main()

int main

(

)

Definition at line 97 of file main.c.

           {
  int status = 0;
 
  // ---------------------------------------------------------------------------
  // Initializations
  // ---------------------------------------------------------------------------
 
  status = USART_init(&config);
  STATUS_ASSERT(status);
 
  status = xmem_init();
  STATUS_ASSERT(status)
 
  status = SRAM_test();
  STATUS_ASSERT(status)
 
  status = tim1_CTC_init();
  STATUS_ASSERT(status)
 
  status = io_avr_init(&avr);
  STATUS_ASSERT(status)
 
  status = menu_init(&menu);
  STATUS_ASSERT(status)
 
  status = can_init(&can);
  STATUS_ASSERT(status)
 
  LOG_CRITICAL("---Init complete---");
 
  static enum page_id last_state = PAGE_WELCOME;
 
  while (1) {
 
    // ---------------------------------------------------------------------------
    // Input/Output Control
    // ---------------------------------------------------------------------------
 
    io_avr_buttons_read(&avr, &btn); // Read button inputs from IO board
    process_can_frame(&ctrl);        // Parse CAN
 
    // ---------------------------------------------------------------------------
    // Game Control
    // ---------------------------------------------------------------------------
 
    menu_handler(&menu, &btn);             // Handle menu state
    if (menu.current_page != last_state) { // Check for game start
      if (menu.current_page == PAGE_PLAY_GAME) {
        tx_gamestart(&can);
      }
      last_state = menu.current_page;
    } else {
      tx_joy_btn(&joy, &avr, &can); // Transmit input states over CAN
    }
 
    if (ctrl.game_over) { // State game-over
      ctrl.game_over = 0;
      if (menu.current_page == PAGE_PLAY_GAME) {
        LOG_CRITICAL("Game over");
        menu.current_page = PAGE_GAME_OVER;
      }
    }
 
    _delay_ms(100);
  }
  return 0;
}

Variable Documentation

avr

struct io_avr_device avr = {SSB3}

Definition at line 52 of file main.c.

{SSB3};

Referenced by main().

btn

struct io_avr_buttons btn

Definition at line 59 of file main.c.

Referenced by cursor_update(), io_avr_buttons_read(), io_joystick_calibrate(), main(), menu_handler(), page_back(), page_select(), and tx_joy_btn().

can

struct can_device can = {SSE2}

Definition at line 53 of file main.c.

{SSE2};

Referenced by main().

config

struct USART_config config = {BAUD, F_CPU}

Definition at line 49 of file main.c.

{BAUD, F_CPU};

Referenced by main(), and USART_init().

ctrl

struct control_state ctrl = {0}

Definition at line 91 of file main.c.

{0};

Referenced by main(), and process_can_frame().

dummy_msg

struct CAN_frame dummy_msg

Definition at line 60 of file main.c.

joy

struct io_joystick_device joy = {0, 1, 67, 69, 247, 247}

Definition at line 50 of file main.c.

{0, 1, 67, 69, 247, 247};

Referenced by main().

last_state

enum page_id last_state = PAGE_WELCOME

static

Definition at line 92 of file main.c.

Referenced by main().

main_menu

struct menu_item main_menu[]

static

Initial value:

= {
    {"Start game", PAGE_PLAY_GAME, NULL, 0},
    {"High scores", PAGE_HIGH_SCORES, NULL, 0},
    {"Settings", PAGE_SETTINGS, settings_menu, 2},
}

Definition at line 69 of file main.c.

                                      {
    {"Start game", PAGE_PLAY_GAME, NULL, 0},
    {"High scores", PAGE_HIGH_SCORES, NULL, 0},
    {"Settings", PAGE_SETTINGS, settings_menu, 2},
};

menu

struct menu_cfg menu

Initial value:

= {
    .oled = &oled,
    .items = main_menu,
    .length = 3,
    .cursor_pos = 0,
    .current_page = PAGE_WELCOME,
    .root_items = main_menu,
    .root_length = 1,
    .parent_menu = NULL,
    .parent_length = 0,
}

Definition at line 76 of file main.c.

                       {
    .oled = &oled,
    .items = main_menu,
    .length = 3,
    .cursor_pos = 0,
    .current_page = PAGE_WELCOME,
    .root_items = main_menu,
    .root_length = 1,
    .parent_menu = NULL,
    .parent_length = 0,
};

Referenced by brightness_display(), calibrate_joystick_display(), cursor_update(), draw_cursor(), game_over_display(), high_scores_display(), main(), menu_handler(), menu_init(), page_back(), page_dispatch(), page_select(), play_game_display(), set_page(), settings_display(), and welcome_display().

oled

struct io_oled_device oled = {SSB2}

Definition at line 51 of file main.c.

{SSB2};

pos

struct io_joystick_position pos

Definition at line 58 of file main.c.

Referenced by io_joystick_read_direction(), and utils_joystick_print_pos().

settings_menu

struct menu_item settings_menu[]

static

Initial value:

= {
    {"Adjust brightness", PAGE_ADJUST_BRIGHTNESS, NULL, 0},
    {"Calibrate joystick", PAGE_CALIBRATE_JOYSTICK, NULL, 0},
}

Definition at line 63 of file main.c.

                                          {
    {"Adjust brightness", PAGE_ADJUST_BRIGHTNESS, NULL, 0},
    {"Calibrate joystick", PAGE_CALIBRATE_JOYSTICK, NULL, 0},
};