mirror of https://github.com/esphome/esphome.git
114 lines
3.0 KiB
C++
114 lines
3.0 KiB
C++
#include "cst816_touchscreen.h"
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namespace esphome {
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namespace cst816 {
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void CST816Touchscreen::continue_setup_() {
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if (this->interrupt_pin_ != nullptr) {
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this->interrupt_pin_->setup();
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this->attach_interrupt_(this->interrupt_pin_, gpio::INTERRUPT_FALLING_EDGE);
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}
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if (!this->read_byte(REG_CHIP_ID, &this->chip_id_)) {
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this->mark_failed();
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esph_log_e(TAG, "Failed to read chip id");
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return;
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}
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switch (this->chip_id_) {
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case CST820_CHIP_ID:
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case CST716_CHIP_ID:
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case CST816S_CHIP_ID:
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case CST816D_CHIP_ID:
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case CST816T_CHIP_ID:
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break;
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default:
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this->mark_failed();
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esph_log_e(TAG, "Unknown chip ID 0x%02X", this->chip_id_);
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return;
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}
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this->write_byte(REG_IRQ_CTL, IRQ_EN_MOTION);
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if (this->x_raw_max_ == this->x_raw_min_) {
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this->x_raw_max_ = this->display_->get_native_width();
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}
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if (this->y_raw_max_ == this->y_raw_min_) {
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this->y_raw_max_ = this->display_->get_native_height();
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}
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esph_log_config(TAG, "CST816 Touchscreen setup complete");
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}
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void CST816Touchscreen::update_button_state_(bool state) {
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if (this->button_touched_ == state)
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return;
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this->button_touched_ = state;
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for (auto *listener : this->button_listeners_)
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listener->update_button(state);
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}
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void CST816Touchscreen::setup() {
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esph_log_config(TAG, "Setting up CST816 Touchscreen...");
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if (this->reset_pin_ != nullptr) {
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this->reset_pin_->setup();
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this->reset_pin_->digital_write(true);
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delay(5);
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this->reset_pin_->digital_write(false);
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delay(5);
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this->reset_pin_->digital_write(true);
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this->set_timeout(30, [this] { this->continue_setup_(); });
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} else {
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this->continue_setup_();
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}
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}
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void CST816Touchscreen::update_touches() {
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uint8_t data[13];
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if (!this->read_bytes(REG_STATUS, data, sizeof data)) {
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this->status_set_warning();
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return;
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}
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uint8_t num_of_touches = data[REG_TOUCH_NUM] & 3;
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if (num_of_touches == 0) {
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this->update_button_state_(false);
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return;
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}
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uint16_t x = encode_uint16(data[REG_XPOS_HIGH] & 0xF, data[REG_XPOS_LOW]);
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uint16_t y = encode_uint16(data[REG_YPOS_HIGH] & 0xF, data[REG_YPOS_LOW]);
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esph_log_v(TAG, "Read touch %d/%d", x, y);
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if (x >= this->x_raw_max_) {
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this->update_button_state_(true);
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} else {
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this->add_raw_touch_position_(0, x, y);
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}
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}
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void CST816Touchscreen::dump_config() {
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ESP_LOGCONFIG(TAG, "CST816 Touchscreen:");
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LOG_I2C_DEVICE(this);
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LOG_PIN(" Interrupt Pin: ", this->interrupt_pin_);
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LOG_PIN(" Reset Pin: ", this->reset_pin_);
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const char *name;
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switch (this->chip_id_) {
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case CST820_CHIP_ID:
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name = "CST820";
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break;
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case CST816S_CHIP_ID:
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name = "CST816S";
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break;
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case CST816D_CHIP_ID:
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name = "CST816D";
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break;
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case CST716_CHIP_ID:
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name = "CST716";
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break;
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case CST816T_CHIP_ID:
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name = "CST816T";
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break;
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default:
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name = "Unknown";
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break;
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}
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ESP_LOGCONFIG(TAG, " Chip type: %s", name);
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}
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} // namespace cst816
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} // namespace esphome
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