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[pca6416a] Migrate to reduce I2C bus usage

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This commit is contained in:
J. Nick Koston
2025-09-04 14:22:33 -05:00
parent e0617e01e0
commit 977f07c338
3 changed files with 33 additions and 10 deletions
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25
esphome/components/pca6416a/pca6416a.cpp
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@@ -51,6 +51,11 @@ void PCA6416AComponent::setup() {
this->status_has_error());
}
void PCA6416AComponent::loop() {
// Invalidate cache at the start of each loop
this->reset_pin_cache_();
}
void PCA6416AComponent::dump_config() {
if (this->has_pullup_) {
ESP_LOGCONFIG(TAG, "PCAL6416A:");
@@ -63,15 +68,25 @@ void PCA6416AComponent::dump_config() {
}
}
bool PCA6416AComponent::digital_read(uint8_t pin) {
uint8_t bit = pin % 8;
bool PCA6416AComponent::digital_read_hw(uint8_t pin) {
uint8_t reg_addr = pin < 8 ? PCA6416A_INPUT0 : PCA6416A_INPUT1;
uint8_t value = 0;
this->read_register_(reg_addr, &value);
return value & (1 << bit);
if (!this->read_register_(reg_addr, &value)) {
return false;
}
// Update the appropriate part of input_mask_
if (pin < 8) {
this->input_mask_ = (this->input_mask_ & 0xFF00) | value;
} else {
this->input_mask_ = (this->input_mask_ & 0x00FF) | (uint16_t(value) << 8);
}
return true;
}
void PCA6416AComponent::digital_write(uint8_t pin, bool value) {
bool PCA6416AComponent::digital_read_cache(uint8_t pin) { return this->input_mask_ & (1 << pin); }
void PCA6416AComponent::digital_write_hw(uint8_t pin, bool value) {
uint8_t reg_addr = pin < 8 ? PCA6416A_OUTPUT0 : PCA6416A_OUTPUT1;
this->update_register_(pin, value, reg_addr);
}