127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
#include "config.h"
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#include "TactilityCore.h"
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#include "driver/gpio.h"
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#include "driver/ledc.h"
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#include "esp_err.h"
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#include "esp_lcd_ili9341.h"
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#include "esp_lcd_panel_io.h"
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#include "esp_lcd_panel_ops.h"
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#include "esp_lvgl_port.h"
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#define TAG "twodotfour_ili9341"
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// Dipslay backlight (PWM)
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#define TWODOTFOUR_LCD_BACKLIGHT_LEDC_TIMER LEDC_TIMER_0
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#define TWODOTFOUR_LCD_BACKLIGHT_LEDC_MODE LEDC_LOW_SPEED_MODE
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#define TWODOTFOUR_LCD_BACKLIGHT_LEDC_CHANNEL LEDC_CHANNEL_0
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#define TWODOTFOUR_LCD_BACKLIGHT_LEDC_DUTY_RES LEDC_TIMER_8_BIT
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#define TWODOTFOUR_LCD_BACKLIGHT_LEDC_FREQUENCY (1000)
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bool twodotfour_backlight_init() {
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ledc_timer_config_t ledc_timer = {
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.speed_mode = TWODOTFOUR_LCD_BACKLIGHT_LEDC_MODE,
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.duty_resolution = TWODOTFOUR_LCD_BACKLIGHT_LEDC_DUTY_RES,
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.timer_num = TWODOTFOUR_LCD_BACKLIGHT_LEDC_TIMER,
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.freq_hz = TWODOTFOUR_LCD_BACKLIGHT_LEDC_FREQUENCY,
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.clk_cfg = LEDC_AUTO_CLK
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};
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if (ledc_timer_config(&ledc_timer) != ESP_OK) {
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TT_LOG_E(TAG, "Backlight led timer config failed");
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return false;
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}
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return true;
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}
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void twodotfour_backlight_set(uint8_t duty) {
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ledc_channel_config_t ledc_channel = {
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.gpio_num = TWODOTFOUR_LCD_PIN_BACKLIGHT,
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.speed_mode = TWODOTFOUR_LCD_BACKLIGHT_LEDC_MODE,
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.channel = TWODOTFOUR_LCD_BACKLIGHT_LEDC_CHANNEL,
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.intr_type = LEDC_INTR_DISABLE,
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.timer_sel = TWODOTFOUR_LCD_BACKLIGHT_LEDC_TIMER,
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.duty = duty,
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.hpoint = 0
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};
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// Setting the config in the timer init and then calling ledc_set_duty() doesn't work when
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// the app is running. For an unknown reason we have to call this config method every time:
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if (ledc_channel_config(&ledc_channel) != ESP_OK) {
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TT_LOG_E(TAG, "Failed to configure display backlight");
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}
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}
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lv_disp_t* twodotfour_display_init() {
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TT_LOG_I(TAG, "Display init");
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const esp_lcd_panel_io_spi_config_t panel_io_config = ILI9341_PANEL_IO_SPI_CONFIG(
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TWODOTFOUR_LCD_PIN_CS,
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TWODOTFOUR_LCD_PIN_DC,
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nullptr,
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nullptr
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);
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esp_lcd_panel_io_handle_t io_handle;
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if (esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)TWODOTFOUR_LCD_SPI_HOST, &panel_io_config, &io_handle) != ESP_OK) {
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TT_LOG_E(TAG, "Failed to create panel");
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return nullptr;
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}
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const esp_lcd_panel_dev_config_t panel_config = {
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.reset_gpio_num = GPIO_NUM_NC,
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.rgb_ele_order = LCD_RGB_ELEMENT_ORDER_BGR,
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.bits_per_pixel = TWODOTFOUR_LCD_BITS_PER_PIXEL,
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};
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esp_lcd_panel_handle_t panel_handle;
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if (esp_lcd_new_panel_ili9341(io_handle, &panel_config, &panel_handle) != ESP_OK) {
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TT_LOG_E(TAG, "Failed to create ili9341");
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return nullptr;
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}
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if (esp_lcd_panel_reset(panel_handle) != ESP_OK) {
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TT_LOG_E(TAG, "Failed to reset panel");
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return nullptr;
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}
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if (esp_lcd_panel_init(panel_handle) != ESP_OK) {
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TT_LOG_E(TAG, "Failed to init panel");
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return nullptr;
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}
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if (esp_lcd_panel_mirror(panel_handle, true, false) != ESP_OK) {
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TT_LOG_E(TAG, "Failed to set panel to mirror");
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return nullptr;
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}
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if (esp_lcd_panel_disp_on_off(panel_handle, true) != ESP_OK) {
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TT_LOG_E(TAG, "Failed to turn display on");
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return nullptr;
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}
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const lvgl_port_display_cfg_t disp_cfg = {
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.io_handle = io_handle,
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.panel_handle = panel_handle,
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.buffer_size = TWODOTFOUR_LCD_DRAW_BUFFER_SIZE,
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.double_buffer = false,
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.hres = TWODOTFOUR_LCD_HORIZONTAL_RESOLUTION,
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.vres = TWODOTFOUR_LCD_VERTICAL_RESOLUTION,
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.monochrome = false,
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.rotation = {
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.swap_xy = false,
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.mirror_x = true,
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.mirror_y = false,
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},
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.flags = {
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.buff_dma = true,
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.buff_spiram = false,
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.sw_rotate = false,
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.swap_bytes = true
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}
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};
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return lvgl_port_add_disp(&disp_cfg);
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}
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