Files
esphome/esphome/components/zephyr/gpio.cpp
tomaszduda23 5d9cba3dce [nrf52, core] nrf52 core based on zephyr (#7049)
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: Samuel Sieb <samuel-github@sieb.net>
Co-authored-by: Tomasz Duda <tomaszduda23@gmai.com>
Co-authored-by: J. Nick Koston <nick@koston.org>
2025-07-16 13:00:21 +12:00

121 lines
2.7 KiB
C++

#ifdef USE_ZEPHYR
#include "gpio.h"
#include <zephyr/drivers/gpio.h>
#include "esphome/core/log.h"
namespace esphome {
namespace zephyr {
static const char *const TAG = "zephyr";
static int flags_to_mode(gpio::Flags flags, bool inverted, bool value) {
int ret = 0;
if (flags & gpio::FLAG_INPUT) {
ret |= GPIO_INPUT;
}
if (flags & gpio::FLAG_OUTPUT) {
ret |= GPIO_OUTPUT;
if (value != inverted) {
ret |= GPIO_OUTPUT_INIT_HIGH;
} else {
ret |= GPIO_OUTPUT_INIT_LOW;
}
}
if (flags & gpio::FLAG_PULLUP) {
ret |= GPIO_PULL_UP;
}
if (flags & gpio::FLAG_PULLDOWN) {
ret |= GPIO_PULL_DOWN;
}
if (flags & gpio::FLAG_OPEN_DRAIN) {
ret |= GPIO_OPEN_DRAIN;
}
return ret;
}
struct ISRPinArg {
uint8_t pin;
bool inverted;
};
ISRInternalGPIOPin ZephyrGPIOPin::to_isr() const {
auto *arg = new ISRPinArg{}; // NOLINT(cppcoreguidelines-owning-memory)
arg->pin = this->pin_;
arg->inverted = this->inverted_;
return ISRInternalGPIOPin((void *) arg);
}
void ZephyrGPIOPin::attach_interrupt(void (*func)(void *), void *arg, gpio::InterruptType type) const {
// TODO
}
void ZephyrGPIOPin::setup() {
const struct device *gpio = nullptr;
if (this->pin_ < 32) {
#define GPIO0 DT_NODELABEL(gpio0)
#if DT_NODE_HAS_STATUS(GPIO0, okay)
gpio = DEVICE_DT_GET(GPIO0);
#else
#error "gpio0 is disabled"
#endif
} else {
#define GPIO1 DT_NODELABEL(gpio1)
#if DT_NODE_HAS_STATUS(GPIO1, okay)
gpio = DEVICE_DT_GET(GPIO1);
#else
#error "gpio1 is disabled"
#endif
}
if (device_is_ready(gpio)) {
this->gpio_ = gpio;
} else {
ESP_LOGE(TAG, "gpio %u is not ready.", this->pin_);
return;
}
this->pin_mode(this->flags_);
}
void ZephyrGPIOPin::pin_mode(gpio::Flags flags) {
if (nullptr == this->gpio_) {
return;
}
gpio_pin_configure(this->gpio_, this->pin_ % 32, flags_to_mode(flags, this->inverted_, this->value_));
}
std::string ZephyrGPIOPin::dump_summary() const {
char buffer[32];
snprintf(buffer, sizeof(buffer), "GPIO%u, P%u.%u", this->pin_, this->pin_ / 32, this->pin_ % 32);
return buffer;
}
bool ZephyrGPIOPin::digital_read() {
if (nullptr == this->gpio_) {
return false;
}
return bool(gpio_pin_get(this->gpio_, this->pin_ % 32) != this->inverted_);
}
void ZephyrGPIOPin::digital_write(bool value) {
// make sure that value is not ignored since it can be inverted e.g. on switch side
// that way init state should be correct
this->value_ = value;
if (nullptr == this->gpio_) {
return;
}
gpio_pin_set(this->gpio_, this->pin_ % 32, value != this->inverted_ ? 1 : 0);
}
void ZephyrGPIOPin::detach_interrupt() const {
// TODO
}
} // namespace zephyr
bool IRAM_ATTR ISRInternalGPIOPin::digital_read() {
// TODO
return false;
}
} // namespace esphome
#endif