Tactility/components/board_2432s024/board_2432s024_display.c
Ken Van Hoeylandt 88c5c55be3 cleanup and improvements
improved driver creation
fixed compile warnings in check.h
hello_world example is now working again with lvgl
2023-12-26 23:04:40 +01:00

123 lines
3.6 KiB
C

#include "board_2432s024_display.h"
#include <esp_lcd_ili9341.h>
#include <esp_log.h>
#include <esp_err.h>
#include <esp_check.h>
#include <esp_lcd_panel_ops.h>
#include <driver/gpio.h>
#include <driver/spi_master.h>
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
static const char* TAG = "2432s024_ili9341";
static SemaphoreHandle_t refresh_finish = NULL;
#define SELECTED_SPI_HOST SPI2_HOST
#define PIN_SCLK GPIO_NUM_14
#define PIN_MOSI GPIO_NUM_13
#define PIN_CS GPIO_NUM_15
#define PIN_DC GPIO_NUM_2
#define PIN_BACKLIGHT GPIO_NUM_27
#define HORIZONTAL_RESOLUTION 240
#define VERTICAL_RESOLUTION 320
#define BITS_PER_PIXEL 16
#define DRAW_BUFFER_HEIGHT 80
IRAM_ATTR static bool prv_on_color_trans_done(esp_lcd_panel_io_handle_t io_handle, esp_lcd_panel_io_event_data_t* edata, void* user_ctx) {
BaseType_t need_yield = pdFALSE;
xSemaphoreGiveFromISR(refresh_finish, &need_yield);
return (need_yield == pdTRUE);
}
static bool prv_create_display(nb_display_t* display) {
ESP_LOGI(TAG, "creating display");
gpio_config_t io_conf = {
.pin_bit_mask = BIT64(PIN_BACKLIGHT),
.mode = GPIO_MODE_OUTPUT,
.pull_up_en = GPIO_PULLUP_DISABLE,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.intr_type = GPIO_INTR_DISABLE,
};
gpio_config(&io_conf);
const spi_bus_config_t bus_config = ILI9341_PANEL_BUS_SPI_CONFIG(
PIN_SCLK,
PIN_MOSI,
HORIZONTAL_RESOLUTION * DRAW_BUFFER_HEIGHT * (BITS_PER_PIXEL / 8)
);
if (spi_bus_initialize(SELECTED_SPI_HOST, &bus_config, SPI_DMA_CH_AUTO) != ESP_OK) {
ESP_LOGD(TAG, "spi bus init failed");
return false;
}
const esp_lcd_panel_io_spi_config_t panel_io_config = ILI9341_PANEL_IO_SPI_CONFIG(
PIN_CS,
PIN_DC,
prv_on_color_trans_done,
NULL
);
if (esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)SELECTED_SPI_HOST, &panel_io_config, &display->io_handle) != ESP_OK) {
ESP_LOGD(TAG, "failed to create panel");
return false;
}
ESP_LOGI(TAG, "install driver");
const esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = GPIO_NUM_NC,
.rgb_endian = LCD_RGB_ENDIAN_RGB,
.bits_per_pixel = BITS_PER_PIXEL,
};
if (esp_lcd_new_panel_ili9341(display->io_handle, &panel_config, &display->display_handle) != ESP_OK) {
ESP_LOGD(TAG, "failed to create ili9341");
return false;
}
if (esp_lcd_panel_reset(display->display_handle) != ESP_OK) {
ESP_LOGD(TAG, "failed to reset panel");
return false;
}
if (esp_lcd_panel_init(display->display_handle) != ESP_OK) {
ESP_LOGD(TAG, "failed to init panel");
return false;
}
if (esp_lcd_panel_mirror(display->display_handle, true, false) != ESP_OK) {
ESP_LOGD(TAG, "failed to set panel to mirror");
return false;
}
if (esp_lcd_panel_disp_on_off(display->display_handle, true) != ESP_OK) {
ESP_LOGD(TAG, "failed to turn display on");
return false;
}
if (gpio_set_level(PIN_BACKLIGHT, 1) != ESP_OK) {
ESP_LOGD(TAG, "failed to turn backlight on");
return false;
}
display->horizontal_resolution = HORIZONTAL_RESOLUTION;
display->vertical_resolution = VERTICAL_RESOLUTION;
display->draw_buffer_height = DRAW_BUFFER_HEIGHT;
display->bits_per_pixel = BITS_PER_PIXEL;
display->mirror_x = true;
display->mirror_y = false;
return true;
}
nb_display_driver_t board_2432s024_create_display_driver() {
return (nb_display_driver_t) {
.name = "ili9341_2432s024",
.create_display = &prv_create_display
};
}