83 lines
3.1 KiB
C++

#pragma once
extern "C" {
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "nvs.h"
#include "ssd1306.h"
#include "font8x8_basic.h"
}
#include "joystick.hpp"
#include "control.hpp"
#include "speedsensor.hpp"
// configuration for initializing display (passed to task as well)
typedef struct display_config_t {
// initialization
gpio_num_t gpio_scl;
gpio_num_t gpio_sda;
int gpio_reset; // negative number means reset pin is not connected or not used
int width;
int height;
int offsetX;
bool flip;
// display-task
int contrastNormal;
int contrastReduced;
uint32_t timeoutReduceContrastMs;
uint32_t timeoutSwitchToScreensaverMs;
} display_config_t;
// struct with variables passed to task from main()
typedef struct display_task_parameters_t {
display_config_t displayConfig;
controlledArmchair * control;
evaluatedJoystick * joystick;
QueueHandle_t encoderQueue;
controlledMotor * motorLeft;
controlledMotor * motorRight;
speedSensor * speedLeft;
speedSensor * speedRight;
buzzer_t *buzzer;
nvs_handle_t * nvsHandle;
} display_task_parameters_t;
// enum for selecting the currently shown status page (display content when not in MENU_SETTINGS mode)
typedef enum displayStatusPage_t {STATUS_SCREEN_OVERVIEW=0, STATUS_SCREEN_SPEED, STATUS_SCREEN_JOYSTICK, STATUS_SCREEN_MOTORS, STATUS_SCREEN_SCREENSAVER, __NUMBER_OF_AVAILABLE_SCREENS} displayStatusPage_t; //note: SCREENSAVER has to be last one since it is ignored by rotate and used to determine count
// get precise battery voltage (using lookup table)
float getBatteryVoltage();
// get battery charge level in percent (using lookup table as discharge curve)
float getBatteryPercent();
// function to select one of the defined status screens which are shown on display when not in MENU_SETTINGS or MENU_SELECT_MODE mode
void display_selectStatusPage(displayStatusPage_t newStatusPage);
// select next/previous status screen to be shown, when noRotate is set is stays at first/last screen
void display_rotateStatusPage(bool reverseDirection = false, bool noRotate = false);
// show content for certain time in any mode
void display_showNotification(uint32_t showDurationMs, const char *line1, const char * line2Large, const char * line3Large );
//task that inititialized the display, displays welcome message
//and releatedly updates the display with certain content
void display_task( void * pvParameters );
//abstracted function for printing one line on the display, using a format string directly
//and options: Large-font (3 lines, max 5 digits), or inverted color
void displayTextLine(SSD1306_t *display, int line, bool large, bool inverted, const char *format, ...);
//abstracted function for printing a string CENTERED on the display, using a format string
//adds spaces left and right to fill the line (if not too long already)
void displayTextLineCentered(SSD1306_t *display, int line, bool isLarge, bool inverted, const char *format, ...);