rsgltzyd
55bbe951fe
- 移除不再使用的 CST816 触摸屏组件，替换为 CST816S 版本 - 更新依赖项以包含 espressif/esp_lcd_touch_cst816s - 调整触摸屏初始化逻辑，支持新的 CST816S 驱动 - 修改显示配置以适应新的 LCD 分辨率和间隙设置 - 启用触摸功能并更新相关的 I2C 配置 - 更新 sdkconfig.defaults 以禁用 CST816S 的读取 ID 功能
115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
#include "touch.h"
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#include "board_config.h"
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#include "driver/gpio.h"
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#include "driver/i2c_master.h"
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#include "esp_lcd_io_i2c.h"
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#include "esp_lcd_panel_io.h"
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#include "esp_lcd_touch.h"
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#include "esp_lcd_touch_cst816s.h"
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#include "esp_log.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/semphr.h"
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#include "freertos/task.h"
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static const char *TAG = "touch";
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#if BOARD_TOUCH_ENABLED
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static i2c_master_bus_handle_t s_touch_i2c_bus;
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static esp_lcd_touch_handle_t s_touch_handle;
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static SemaphoreHandle_t s_touch_mux;
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static void touch_isr_cb(esp_lcd_touch_handle_t tp)
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{
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BaseType_t task_woken = pdFALSE;
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(void)tp;
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xSemaphoreGiveFromISR(s_touch_mux, &task_woken);
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if (task_woken) {
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portYIELD_FROM_ISR();
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}
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}
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static void lvgl_touch_read_cb(lv_indev_t *indev, lv_indev_data_t *data)
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{
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esp_lcd_touch_handle_t tp = lv_indev_get_user_data(indev);
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if (xSemaphoreTake(s_touch_mux, 0) == pdTRUE) {
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esp_lcd_touch_read_data(tp);
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}
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esp_lcd_touch_point_data_t points[1];
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uint8_t point_cnt = 0;
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if (esp_lcd_touch_get_data(tp, points, &point_cnt, 1) == ESP_OK && point_cnt > 0) {
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data->point.x = points[0].x;
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data->point.y = points[0].y;
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data->state = LV_INDEV_STATE_PRESSED;
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} else {
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data->state = LV_INDEV_STATE_RELEASED;
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}
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}
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esp_err_t touch_init(lv_display_t *display)
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{
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ESP_LOGI(TAG, "Initialize I2C for touch");
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i2c_master_bus_config_t bus_config = {
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.clk_source = I2C_CLK_SRC_DEFAULT,
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.i2c_port = BOARD_TOUCH_I2C_NUM,
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.sda_io_num = BOARD_PIN_TOUCH_SDA,
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.scl_io_num = BOARD_PIN_TOUCH_SCL,
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.glitch_ignore_cnt = 7,
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.flags.enable_internal_pullup = true,
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};
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ESP_ERROR_CHECK(i2c_new_master_bus(&bus_config, &s_touch_i2c_bus));
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s_touch_mux = xSemaphoreCreateBinary();
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if (s_touch_mux == NULL) {
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ESP_LOGE(TAG, "Failed to create touch semaphore");
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return ESP_ERR_NO_MEM;
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}
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ESP_LOGI(TAG, "Initialize touch panel IO (CST816S)");
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esp_lcd_panel_io_handle_t tp_io_handle = NULL;
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esp_lcd_panel_io_i2c_config_t tp_io_config = ESP_LCD_TOUCH_IO_I2C_CST816S_CONFIG();
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tp_io_config.scl_speed_hz = BOARD_TOUCH_I2C_FREQ_HZ;
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ESP_ERROR_CHECK(esp_lcd_new_panel_io_i2c(s_touch_i2c_bus, &tp_io_config, &tp_io_handle));
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ESP_LOGI(TAG, "Initialize touch controller CST816S");
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esp_lcd_touch_config_t tp_cfg = {
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.x_max = BOARD_LCD_H_RES,
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.y_max = BOARD_LCD_V_RES,
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.rst_gpio_num = BOARD_PIN_TOUCH_RST,
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.int_gpio_num = BOARD_PIN_TOUCH_INT,
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.levels = {
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.reset = 0,
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.interrupt = 0,
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},
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.flags = {
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.swap_xy = 0,
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.mirror_x = 0,
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.mirror_y = 0,
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},
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.interrupt_callback = touch_isr_cb,
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};
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ESP_ERROR_CHECK(esp_lcd_touch_new_i2c_cst816s(tp_io_handle, &tp_cfg, &s_touch_handle));
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lv_indev_t *indev = lv_indev_create();
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lv_indev_set_type(indev, LV_INDEV_TYPE_POINTER);
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lv_indev_set_display(indev, display);
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lv_indev_set_user_data(indev, s_touch_handle);
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lv_indev_set_read_cb(indev, lvgl_touch_read_cb);
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return ESP_OK;
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}
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#else
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esp_err_t touch_init(lv_display_t *display)
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{
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(void)display;
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return ESP_OK;
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}
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#endif
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