mirror of https://github.com/esphome/esphome.git
110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
#ifdef USE_ESP8266
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#include "gpio.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace esp8266 {
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static const char *const TAG = "esp8266";
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static int IRAM_ATTR flags_to_mode(gpio::Flags flags, uint8_t pin) {
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if (flags == gpio::FLAG_INPUT) { // NOLINT(bugprone-branch-clone)
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return INPUT;
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} else if (flags == gpio::FLAG_OUTPUT) {
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return OUTPUT;
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} else if (flags == (gpio::FLAG_INPUT | gpio::FLAG_PULLUP)) {
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if (pin == 16) {
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// GPIO16 doesn't have a pullup, so pinMode would fail.
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// However, sometimes this method is called with pullup mode anyway
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// for example from dallas one_wire. For those cases convert this
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// to a INPUT mode.
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return INPUT;
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}
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return INPUT_PULLUP;
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} else if (flags == (gpio::FLAG_INPUT | gpio::FLAG_PULLDOWN)) {
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return INPUT_PULLDOWN_16;
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} else if (flags == (gpio::FLAG_OUTPUT | gpio::FLAG_OPEN_DRAIN)) {
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return OUTPUT_OPEN_DRAIN;
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} else {
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return 0;
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}
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}
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struct ISRPinArg {
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uint8_t pin;
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bool inverted;
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};
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ISRInternalGPIOPin ESP8266GPIOPin::to_isr() const {
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auto *arg = new ISRPinArg{}; // NOLINT(cppcoreguidelines-owning-memory)
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arg->pin = pin_;
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arg->inverted = inverted_;
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return ISRInternalGPIOPin((void *) arg);
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}
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void ESP8266GPIOPin::attach_interrupt(void (*func)(void *), void *arg, gpio::InterruptType type) const {
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uint8_t arduino_mode = 0;
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switch (type) {
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case gpio::INTERRUPT_RISING_EDGE:
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arduino_mode = inverted_ ? FALLING : RISING;
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break;
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case gpio::INTERRUPT_FALLING_EDGE:
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arduino_mode = inverted_ ? RISING : FALLING;
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break;
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case gpio::INTERRUPT_ANY_EDGE:
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arduino_mode = CHANGE;
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break;
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case gpio::INTERRUPT_LOW_LEVEL:
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arduino_mode = inverted_ ? ONHIGH : ONLOW;
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break;
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case gpio::INTERRUPT_HIGH_LEVEL:
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arduino_mode = inverted_ ? ONLOW : ONHIGH;
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break;
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}
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attachInterruptArg(pin_, func, arg, arduino_mode);
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}
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void ESP8266GPIOPin::pin_mode(gpio::Flags flags) {
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pinMode(pin_, flags_to_mode(flags, pin_)); // NOLINT
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}
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std::string ESP8266GPIOPin::dump_summary() const {
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char buffer[32];
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snprintf(buffer, sizeof(buffer), "GPIO%u", pin_);
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return buffer;
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}
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bool ESP8266GPIOPin::digital_read() {
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return bool(digitalRead(pin_)) != inverted_; // NOLINT
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}
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void ESP8266GPIOPin::digital_write(bool value) {
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digitalWrite(pin_, value != inverted_ ? 1 : 0); // NOLINT
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}
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void ESP8266GPIOPin::detach_interrupt() const { detachInterrupt(pin_); }
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} // namespace esp8266
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using namespace esp8266;
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bool IRAM_ATTR ISRInternalGPIOPin::digital_read() {
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auto *arg = reinterpret_cast<ISRPinArg *>(arg_);
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return bool(digitalRead(arg->pin)) != arg->inverted; // NOLINT
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}
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void IRAM_ATTR ISRInternalGPIOPin::digital_write(bool value) {
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auto *arg = reinterpret_cast<ISRPinArg *>(arg_);
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digitalWrite(arg->pin, value != arg->inverted ? 1 : 0); // NOLINT
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}
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void IRAM_ATTR ISRInternalGPIOPin::clear_interrupt() {
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auto *arg = reinterpret_cast<ISRPinArg *>(arg_);
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GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, 1UL << arg->pin);
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}
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void IRAM_ATTR ISRInternalGPIOPin::pin_mode(gpio::Flags flags) {
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auto *arg = reinterpret_cast<ISRPinArg *>(arg_);
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pinMode(arg->pin, flags_to_mode(flags, arg->pin)); // NOLINT
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}
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} // namespace esphome
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#endif // USE_ESP8266
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