110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
#ifndef DISPLAY_H
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#define DISPLAY_H
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#include <esp_lcd_types.h>
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#include <esp_lcd_panel_ssd1306.h>
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#include <driver/i2c_types.h>
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#include <driver/i2c_master.h>
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#include "misc/lv_types.h"
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#include "misc/lv_area.h"
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#include "display/lv_display.h"
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#define I2C_BUS_PORT 0
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#define LVGL_TICK_PERIOD_MS 5
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#define LVGL_TASK_STACK_SIZE (4 * 1024)
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#define LVGL_TASK_PRIORITY 2
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#define LVGL_PALETTE_SIZE 8
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static const char *TAG = "lcd-panel";
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// https://www.digikey.com/en/products/detail/winstar-display/WEA012864DWPP3N00003/20533255
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// According to SSD1306 datasheet
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// Bit number used to represent command and parameter
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
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#define SCREEN_HEIGHT 64 // OLED display height, in pixels
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#define LCD_H_RES SCREEN_WIDTH
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#define LCD_V_RES SCREEN_HEIGHT
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#define I2C_HW_ADDR 0x3C
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#define LCD_PIXEL_CLOCK_HZ (400 * 1000)
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#define LCD_CMD_BITS 8
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#define LCD_PARAM_BITS 8
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// Pin may vary based on your schematic
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#define PIN_SDA GPIO_NUM_21
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#define PIN_SCL GPIO_NUM_22
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#define PIN_RST -1
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struct ScopedLock {
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explicit ScopedLock() { _lock_acquire(&lock_); }
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~ScopedLock() { _lock_release(&lock_); }
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// LVGL library is not thread-safe, this example calls LVGL APIs from tasks.
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// We must use a mutex to protect it.
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static _lock_t lock_;
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};
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class Display {
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public:
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Display();
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~Display() = default;
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[[nodiscard]] inline const lv_display_t *get() const { return display_; }
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[[nodiscard]] inline lv_display_t *get() { return display_; }
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[[nodiscard]] inline const lv_display_t *operator*() const { return get(); }
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[[nodiscard]] inline lv_display_t *operator*() { return get(); }
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static bool lvgl_flush_ready(esp_lcd_panel_io_handle_t panel,
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esp_lcd_panel_io_event_data_t *data,
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void *user_ctx);
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static void lvgl_flush_cb(lv_display_t *display,
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const lv_area_t *area,
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uint8_t *px_map);
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static void lvgl_increase_tick(void *arg);
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static void lvgl_port_task(void *arg);
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// For LV_COLOR_FORMAT_I1 we need an extra buffer to hold the converted data.
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static uint8_t oled_buffer_[LCD_H_RES * LCD_V_RES / 8];
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protected:
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esp_lcd_panel_io_handle_t io_handle_;
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esp_lcd_panel_handle_t panel_handle_;
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esp_lcd_panel_dev_config_t panel_config_;
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esp_lcd_panel_ssd1306_config_t ssd1306_config_;
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i2c_master_bus_handle_t i2c_bus_;
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private:
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void init_i2c();
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// virtual void *vendor_config() = 0;
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lv_display_t *display_;
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void * vendor_config_;
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void * buf_;
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};
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//class SSD1306 : public Display {
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//public:
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// SSD1306();
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//
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// void * vendor_config() override;
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//
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//private:
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// esp_lcd_panel_dev_config_t panel_config_;
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// esp_lcd_panel_ssd1306_config_t ssd1306_config_;
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//};
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#endif // DISPLAY_H
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