初始提交卡包 USB 工程
纳入固件源码、屏幕组件、nand_xfer 工具和文档。忽略本机构建产物、sdkconfig，以及含本机路径的依赖锁。 Co-authored-by: Cursor <[email protected]>
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zhengxin
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idf_component_register(SRCS "esp_lcd_touch_chsc6417.c" INCLUDE_DIRS "include" REQUIRES "esp_lcd_touch")
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/*
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* SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <inttypes.h>
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#include <stdio.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "driver/gpio.h"
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#include "esp_system.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_check.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_chsc6417.h"
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#define POINT_NUM_MAX (1)
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#define DATA_START_REG (0x00)
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#define CHIP_ID_REG (0xA7)
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static const char *TAG = "CHSC6417";
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static esp_err_t read_data(esp_lcd_touch_handle_t tp);
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static bool get_xy(esp_lcd_touch_handle_t tp, uint16_t *x, uint16_t *y, uint16_t *strength, uint8_t *point_num, uint8_t max_point_num);
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static esp_err_t del(esp_lcd_touch_handle_t tp);
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static esp_err_t i2c_read_bytes(esp_lcd_touch_handle_t tp, uint16_t reg, uint8_t *data, uint8_t len);
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static esp_err_t reset(esp_lcd_touch_handle_t tp);
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static esp_err_t read_id(esp_lcd_touch_handle_t tp);
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esp_err_t esp_lcd_touch_new_i2c_chsc6417(const esp_lcd_panel_io_handle_t io, const esp_lcd_touch_config_t *config, esp_lcd_touch_handle_t *tp)
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{
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ESP_RETURN_ON_FALSE(io, ESP_ERR_INVALID_ARG, TAG, "Invalid io");
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ESP_RETURN_ON_FALSE(config, ESP_ERR_INVALID_ARG, TAG, "Invalid config");
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ESP_RETURN_ON_FALSE(tp, ESP_ERR_INVALID_ARG, TAG, "Invalid touch handle");
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/* Prepare main structure */
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esp_err_t ret = ESP_OK;
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esp_lcd_touch_handle_t chsc6417 = calloc(1, sizeof(esp_lcd_touch_t));
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ESP_GOTO_ON_FALSE(chsc6417, ESP_ERR_NO_MEM, err, TAG, "Touch handle malloc failed");
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/* Communication interface */
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chsc6417->io = io;
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/* Only supported callbacks are set */
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chsc6417->read_data = read_data;
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chsc6417->get_xy = get_xy;
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chsc6417->del = del;
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/* Mutex */
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chsc6417->data.lock.owner = portMUX_FREE_VAL;
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/* Save config */
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memcpy(&chsc6417->config, config, sizeof(esp_lcd_touch_config_t));
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/* Prepare pin for touch interrupt */
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if (chsc6417->config.int_gpio_num != GPIO_NUM_NC) {
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const gpio_config_t int_gpio_config = {
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.mode = GPIO_MODE_INPUT,
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.intr_type = (chsc6417->config.levels.interrupt ? GPIO_INTR_POSEDGE : GPIO_INTR_NEGEDGE),
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.pin_bit_mask = BIT64(chsc6417->config.int_gpio_num)
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};
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ESP_GOTO_ON_ERROR(gpio_config(&int_gpio_config), err, TAG, "GPIO intr config failed");
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/* Register interrupt callback */
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if (chsc6417->config.interrupt_callback) {
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esp_lcd_touch_register_interrupt_callback(chsc6417, chsc6417->config.interrupt_callback);
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}
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}
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/* Prepare pin for touch controller reset */
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if (chsc6417->config.rst_gpio_num != GPIO_NUM_NC) {
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const gpio_config_t rst_gpio_config = {
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.mode = GPIO_MODE_OUTPUT,
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.pin_bit_mask = BIT64(chsc6417->config.rst_gpio_num)
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};
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ESP_GOTO_ON_ERROR(gpio_config(&rst_gpio_config), err, TAG, "GPIO reset config failed");
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}
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/* Reset controller */
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ESP_GOTO_ON_ERROR(reset(chsc6417), err, TAG, "Reset failed");
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/* Read product id */
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// ESP_GOTO_ON_ERROR(read_id(chsc6417), err, TAG, "Read version failed");
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*tp = chsc6417;
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ESP_LOGI(TAG, "LCD touch panel create success, version: %d.%d.%d", ESP_LCD_TOUCH_CHSC6417_VER_MAJOR, ESP_LCD_TOUCH_CHSC6417_VER_MINOR,
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ESP_LCD_TOUCH_CHSC6417_VER_PATCH);
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return ESP_OK;
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err:
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if (chsc6417) {
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del(chsc6417);
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}
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ESP_LOGE(TAG, "Initialization failed!");
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return ret;
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}
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static esp_err_t read_data(esp_lcd_touch_handle_t tp)
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{
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typedef struct {
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uint8_t num;
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uint8_t x_h : 4;
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uint8_t : 4;
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uint8_t x_l;
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uint8_t y_h : 4;
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uint8_t : 4;
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uint8_t y_l;
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} data_t;
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data_t point;
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uint8_t lvalue[3]={0};
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// uint8_t gesture_id=0;
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uint16_t x=0;
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uint16_t y=0;
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esp_err_t err = i2c_read_bytes(tp, 0xE0, (uint8_t *)lvalue, sizeof(lvalue));
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// 断言
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ESP_RETURN_ON_ERROR(err, TAG, "I2C read failed");
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// 如果读取失败，将num置为0
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if (err != ESP_OK) {
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point.num = 0;
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x = 0;
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y = 0;
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}else{
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point.num = lvalue[0] & 0x03; // 获取触摸点数量
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x = (uint16_t)((((lvalue[0] & 0x40) >> 6) << 8) | lvalue[1]);
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y = (uint16_t)(((lvalue[0] & 0x80) >> 7) << 8) | lvalue[2];
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}
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// gesture_id = lvalue[0];
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// ESP_LOGI(TAG, "Touch position: %d,%d,%d", point.num, x, y);
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portENTER_CRITICAL(&tp->data.lock);
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point.num = (point.num > POINT_NUM_MAX ? POINT_NUM_MAX : point.num);
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tp->data.points = point.num;
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/* Fill all coordinates */
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for (int i = 0; i < point.num; i++) {
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tp->data.coords[i].x = x;
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tp->data.coords[i].y = y;
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}
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portEXIT_CRITICAL(&tp->data.lock);
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return ESP_OK;
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}
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// void read_touch()
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// {
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// uint8_t data1[1]={0xE0};
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// uint8_t lvalue[3];
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// i2c_write(TOUCH_I2C_ADD,TOUCH_I2C_W,data1,1);
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// delay(1);
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// i2c_read(TOUCH_I2C_ADD,TOUCH_I2C_R,lvalue,3);
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// point_num = lvalue[0] & 0x03;
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// x = (uint16_t)((((lvalue[0] & 0x40) >> 6) << 8) | lvalue[1]);
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// y = (uint16_t)(((lvalue[0] & 0x80) >> 7) << 8) | lvalue[2];
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// }
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static bool get_xy(esp_lcd_touch_handle_t tp, uint16_t *x, uint16_t *y, uint16_t *strength, uint8_t *point_num, uint8_t max_point_num)
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{
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portENTER_CRITICAL(&tp->data.lock);
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/* Count of points */
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*point_num = (tp->data.points > max_point_num ? max_point_num : tp->data.points);
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for (size_t i = 0; i < *point_num; i++) {
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x[i] = tp->data.coords[i].x;
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y[i] = tp->data.coords[i].y;
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if (strength) {
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strength[i] = tp->data.coords[i].strength;
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}
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}
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/* Invalidate */
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tp->data.points = 0;
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portEXIT_CRITICAL(&tp->data.lock);
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return (*point_num > 0);
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}
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static esp_err_t del(esp_lcd_touch_handle_t tp)
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{
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/* Reset GPIO pin settings */
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if (tp->config.int_gpio_num != GPIO_NUM_NC) {
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gpio_reset_pin(tp->config.int_gpio_num);
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if (tp->config.interrupt_callback) {
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gpio_isr_handler_remove(tp->config.int_gpio_num);
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}
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}
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if (tp->config.rst_gpio_num != GPIO_NUM_NC) {
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gpio_reset_pin(tp->config.rst_gpio_num);
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}
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/* Release memory */
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free(tp);
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return ESP_OK;
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}
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static esp_err_t reset(esp_lcd_touch_handle_t tp)
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{
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if (tp->config.rst_gpio_num != GPIO_NUM_NC) {
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ESP_RETURN_ON_ERROR(gpio_set_level(tp->config.rst_gpio_num, tp->config.levels.reset), TAG, "GPIO set level failed");
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vTaskDelay(pdMS_TO_TICKS(200));
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ESP_RETURN_ON_ERROR(gpio_set_level(tp->config.rst_gpio_num, !tp->config.levels.reset), TAG, "GPIO set level failed");
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vTaskDelay(pdMS_TO_TICKS(200));
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}
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return ESP_OK;
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}
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static esp_err_t read_id(esp_lcd_touch_handle_t tp)
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{
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uint8_t id;
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ESP_RETURN_ON_ERROR(i2c_read_bytes(tp, CHIP_ID_REG, &id, 1), TAG, "I2C read failed");
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ESP_LOGI(TAG, "IC id: %d", id);
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return ESP_OK;
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}
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static esp_err_t i2c_read_bytes(esp_lcd_touch_handle_t tp, uint16_t reg, uint8_t *data, uint8_t len)
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{
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ESP_RETURN_ON_FALSE(data, ESP_ERR_INVALID_ARG, TAG, "Invalid data");
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return esp_lcd_panel_io_rx_param(tp->io, reg, data, len);
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}
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@@ -0,0 +1,61 @@
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/*
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* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief ESP LCD touch: CHSC6417
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*/
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#pragma once
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#include "esp_lcd_touch.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ESP_LCD_TOUCH_CHSC6417_VER_MAJOR (1)
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#define ESP_LCD_TOUCH_CHSC6417_VER_MINOR (0)
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#define ESP_LCD_TOUCH_CHSC6417_VER_PATCH (3)
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/**
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* @brief Create a new CHSC6417 touch driver
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*
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* @note The I2C communication should be initialized before use this function.
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*
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* @param io LCD panel IO handle, it should be created by `esp_lcd_new_panel_io_i2c()`
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* @param config Touch panel configuration
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* @param tp Touch panel handle
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* @return
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* - ESP_OK: on success
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*/
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esp_err_t esp_lcd_touch_new_i2c_chsc6417(const esp_lcd_panel_io_handle_t io, const esp_lcd_touch_config_t *config, esp_lcd_touch_handle_t *tp);
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/**
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* @brief I2C address of the CHSC6417 controller
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*
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*/
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#define ESP_LCD_TOUCH_IO_I2C_CHSC6417_ADDRESS (0x2E) // CHSC6417
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/**
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* @brief Touch IO configuration structure
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*
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*/
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#define ESP_LCD_TOUCH_IO_I2C_CHSC6417_CONFIG() \
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{ \
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.dev_addr = ESP_LCD_TOUCH_IO_I2C_CHSC6417_ADDRESS, \
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.control_phase_bytes = 1, \
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.dc_bit_offset = 0, \
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.lcd_cmd_bits = 8, \
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.flags = \
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{ \
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.disable_control_phase = 1, \
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} \
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}
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#ifdef __cplusplus
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}
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#endif
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