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https://github.com/esphome/esphome.git
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91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
#include "cap1188.h"
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#include "esphome/core/log.h"
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#include "esphome/core/hal.h"
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namespace esphome {
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namespace cap1188 {
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static const char *const TAG = "cap1188";
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void CAP1188Component::setup() {
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ESP_LOGCONFIG(TAG, "Running setup");
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// Reset device using the reset pin
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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(false);
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delay(100); // NOLINT
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this->reset_pin_->digital_write(true);
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delay(100); // NOLINT
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this->reset_pin_->digital_write(false);
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delay(100); // NOLINT
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}
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// Check if CAP1188 is actually connected
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this->read_byte(CAP1188_PRODUCT_ID, &this->cap1188_product_id_);
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this->read_byte(CAP1188_MANUFACTURE_ID, &this->cap1188_manufacture_id_);
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this->read_byte(CAP1188_REVISION, &this->cap1188_revision_);
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if ((this->cap1188_product_id_ != 0x50) || (this->cap1188_manufacture_id_ != 0x5D)) {
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this->error_code_ = COMMUNICATION_FAILED;
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this->mark_failed();
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return;
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}
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// Set sensitivity
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uint8_t sensitivity = 0;
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this->read_byte(CAP1188_SENSITVITY, &sensitivity);
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sensitivity = sensitivity & 0x0f;
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this->write_byte(CAP1188_SENSITVITY, sensitivity | this->touch_threshold_);
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// Allow multiple touches
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this->write_byte(CAP1188_MULTI_TOUCH, this->allow_multiple_touches_);
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// Have LEDs follow touches
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this->write_byte(CAP1188_LED_LINK, 0xFF);
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// Speed up a bit
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this->write_byte(CAP1188_STAND_BY_CONFIGURATION, 0x30);
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}
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void CAP1188Component::dump_config() {
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ESP_LOGCONFIG(TAG, "CAP1188:");
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LOG_I2C_DEVICE(this);
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LOG_PIN(" Reset Pin: ", this->reset_pin_);
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ESP_LOGCONFIG(TAG,
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" Product ID: 0x%x\n"
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" Manufacture ID: 0x%x\n"
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" Revision ID: 0x%x",
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this->cap1188_product_id_, this->cap1188_manufacture_id_, this->cap1188_revision_);
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switch (this->error_code_) {
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case COMMUNICATION_FAILED:
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ESP_LOGE(TAG, "Product ID or Manufacture ID of the connected device does not match a known CAP1188.");
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break;
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case NONE:
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default:
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break;
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}
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}
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void CAP1188Component::loop() {
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uint8_t touched = 0;
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this->read_register(CAP1188_SENSOR_INPUT_STATUS, &touched, 1);
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if (touched) {
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uint8_t data = 0;
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this->read_register(CAP1188_MAIN, &data, 1);
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data = data & ~CAP1188_MAIN_INT;
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this->write_register(CAP1188_MAIN, &data, 2);
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}
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for (auto *channel : this->channels_) {
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channel->process(touched);
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}
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}
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} // namespace cap1188
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} // namespace esphome
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