maddiefuzz/spincoat-plater-firmware
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Finish LCD init implementation

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This commit is contained in:
maddiebaka
2025-12-20 14:53:22 -05:00
parent 1763303f3c
commit 001d1dfeca
3 changed files with 103 additions and 36 deletions
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main/spincoat-plater-firmware.c
+96 -35
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@@ -8,6 +8,10 @@
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "unity.h"
#include "unity_test_runner.h"
#include "esp_log.h"
#include "driver/rmt_tx.h"
@@ -18,6 +22,7 @@
#include "esp_lcd_panel_ops.h"
#include "driver/spi_common.h"
#include "esp_lcd_panel_io.h"
#include "esp_lcd_panel_commands.h"
#include "esp_lcd_ili9341.h"
#include "dshot_esc_encoder.h"
@@ -41,11 +46,14 @@
#define GPIO_TFT_BL CONFIG_TFT_BL_PIN // Backlight
#define TFT_HRES CONFIG_TFT_HRES
#define TFT_VRES CONFIG_TFT_VRES
#define TFT_BPP CONFIG_TFT_BPP
#define ESP_INTR_FLAG_DEFAULT 0
static const char *TAG = "spincoat-plater-firmware";
static SemaphoreHandle_t refresh_finish = NULL;
static QueueHandle_t uart_queue = NULL;
const int uart_buffer_size = (1024 * 2);
@@ -122,6 +130,9 @@ void init_rmt_esc_tx(void) {
initialize_esc_throttle();
}
/**
* Initialize the UART receive pin so that we can receive telemetry data from the connected ESC.
*/
void init_telemetry_uart_rx(void) {
uart_config_t uart_config = {
.baud_rate = 115200,
@@ -137,41 +148,49 @@ void init_telemetry_uart_rx(void) {
ESP_ERROR_CHECK(uart_set_pin(UART_NUM, UART_PIN_NO_CHANGE, GPIO_ESC_RX, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE));
}
void spi_lcd_transfer_done(void) {
return;
/**
* Callback for the TFT LCD, notifying when the screen is ready for another chunk of data and
* releasing the drawing semaphore.
*/
IRAM_ATTR static bool notify_refresh_ready(esp_lcd_panel_io_handle_t panel_io, 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);
}
/**
* Draws a test bitmap of stripes of colors to the LCD.
*/
static void test_draw_bitmap(esp_lcd_panel_handle_t panel_handle)
{
refresh_finish = xSemaphoreCreateBinary();
TEST_ASSERT_NOT_NULL(refresh_finish);
uint16_t row_line = TFT_VRES / TFT_BPP;
uint8_t byte_per_pixel = TFT_BPP / 8;
uint8_t *color = (uint8_t *)heap_caps_calloc(1, row_line * TFT_VRES * byte_per_pixel, MALLOC_CAP_DMA);
TEST_ASSERT_NOT_NULL(color);
for (int j = 0; j < TFT_BPP; j++) {
for (int i = 0; i < row_line * TFT_HRES ; i++) {
for (int k = 0; k < byte_per_pixel; k++) {
color[i * byte_per_pixel + k] = (SPI_SWAP_DATA_TX(BIT(j), TFT_BPP) >> (k * 8)) & 0xff;
}
}
TEST_ESP_OK(esp_lcd_panel_draw_bitmap(panel_handle, 0, j * row_line, TFT_HRES , (j + 1) * row_line, color));
xSemaphoreTake(refresh_finish, portMAX_DELAY);
}
free(color);
vSemaphoreDelete(refresh_finish);
}
/**
* Initializes the SPI LCD in preparation for writing graphics to it.
*/
void init_spi_lcd(void) {
ESP_LOGI(TAG, "Initialize SPI bus");
// TODO might need to replace with another config var
const spi_bus_config_t bus_config = ILI9341_PANEL_BUS_SPI_CONFIG(GPIO_TFT_SCKL,
GPIO_TFT_MOSI,
TFT_HRES * TFT_VRES * sizeof(uint16_t));
ESP_ERROR_CHECK(spi_bus_initialize(LCD_SPI_HOST, &bus_config, SPI_DMA_CH_AUTO));
ESP_LOGI(TAG, "Install panel IO");
esp_lcd_panel_io_handle_t io_handle = NULL;
const esp_lcd_panel_io_spi_config_t io_config = ILI9341_PANEL_IO_SPI_CONFIG(GPIO_TFT_CS, GPIO_TFT_DC,
NULL, NULL);
ESP_ERROR_CHECK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)LCD_SPI_HOST, &io_config, &io_handle));
ESP_LOGI(TAG, "Install ILI9341 panel driver");
esp_lcd_panel_handle_t panel_handle = NULL;
const esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = -1,
.rgb_ele_order = LCD_RGB_ELEMENT_ORDER_RGB,
.bits_per_pixel = 16,
};
ESP_ERROR_CHECK(esp_lcd_new_panel_ili9341(io_handle, &panel_config, &panel_handle));
ESP_ERROR_CHECK(esp_lcd_panel_reset(panel_handle));
ESP_ERROR_CHECK(esp_lcd_panel_init(panel_handle));
ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(panel_handle, true));
ESP_LOGI(TAG, "Turning on backlight");
printf("Configured pin is reported as %d\n", CONFIG_TFT_BL_PIN);
// TODO: This pin isn't going high. Configure it properly.
ESP_LOGI(TAG, "Turn on backlight");
gpio_config_t io_conf = {
.pin_bit_mask = (1ULL << GPIO_TFT_BL),
@@ -182,11 +201,53 @@ void init_spi_lcd(void) {
};
gpio_config(&io_conf);
gpio_set_level(GPIO_TFT_BL, 1);
ESP_LOGI(TAG, "Initialize SPI bus");
const spi_bus_config_t bus_config = ILI9341_PANEL_BUS_SPI_CONFIG(GPIO_TFT_SCKL,
GPIO_TFT_MOSI, TFT_HRES * 80 * TFT_BPP / 8);
TEST_ESP_OK(spi_bus_initialize(LCD_SPI_HOST, &bus_config, SPI_DMA_CH_AUTO));
ESP_LOGI(TAG, "Install panel IO");
esp_lcd_panel_io_handle_t io_handle = NULL;
const esp_lcd_panel_io_spi_config_t io_config = ILI9341_PANEL_IO_SPI_CONFIG(GPIO_TFT_CS, GPIO_TFT_DC,
TEST_ESP_OK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)LCD_SPI_HOST, &io_config, &io_handle));
ESP_LOGI(TAG, "Install ili9341 panel driver");
esp_lcd_panel_handle_t panel_handle = NULL;
const esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = -1, // Shared with Touch reset
#if ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(5, 0, 0)
.color_space = ESP_LCD_COLOR_SPACE_BGR,
#elif ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(6, 0, 0)
.rgb_endian = LCD_RGB_ENDIAN_BGR,
#else
.rgb_ele_order = LCD_RGB_ELEMENT_ORDER_BGR,
#endif
.bits_per_pixel = TFT_BPP,
};
TEST_ESP_OK(esp_lcd_new_panel_ili9341(io_handle, &panel_config, &panel_handle));
TEST_ESP_OK(esp_lcd_panel_reset(panel_handle));
TEST_ESP_OK(esp_lcd_panel_init(panel_handle));
TEST_ESP_OK(esp_lcd_panel_mirror(panel_handle, true, true));
#if ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(5, 0, 0)
TEST_ESP_OK(esp_lcd_panel_disp_off(panel_handle, false));
#else
TEST_ESP_OK(esp_lcd_panel_disp_on_off(panel_handle, true));
#endif
//gpio_reset_pin(GPIO_TFT_BL);
//gpio_set_direction(GPIO_TFT_BL, GPIO_MODE_OUTPUT);
ESP_ERROR_CHECK(gpio_set_level(GPIO_TFT_BL, 1));
ESP_LOGI(TAG, "Finished init of spi LCD.");
ESP_LOGI(TAG, "Drawing bitmap.");;
test_draw_bitmap(panel_handle);
vTaskDelay(pdMS_TO_TICKS(3000));
// Tear it back down, move this into a function to clean up after ourselves if it's ever needed.
ESP_LOGI(TAG, "Destroying and cleaning up LCD/SPI handles.");
gpio_reset_pin(GPIO_TFT_BL);
TEST_ESP_OK(esp_lcd_panel_del(panel_handle));
TEST_ESP_OK(esp_lcd_panel_io_del(io_handle));
TEST_ESP_OK(spi_bus_free(LCD_SPI_HOST));
}
/**