Allow to receive GPIO number

Author: dshil

components/ocs_io/gpio/igpio.h

@@ -19,6 +19,9 @@ class IGpio {
     //! Destroy.
     virtual ~IGpio() = default;
 
+    //! Return GPIO number.
+    virtual GpioNum get_num() const = 0;
+
     //! Get the GPIO level.
     virtual status::StatusCode get_level(Level& level) = 0;
 

components/ocs_io/gpio/target_esp32/gpio.cpp

@@ -23,6 +23,10 @@ Gpio::Gpio(gpio_num_t gpio_num, Level enable_level)
     , enable_level_(enable_level) {
 }
 
+GpioNum Gpio::get_num() const {
+    return gpio_num_;
+}
+
 status::StatusCode Gpio::get_level(Level& level) {
     const int value = gpio_get_level(gpio_num_);
     if (value < 0) {

components/ocs_io/gpio/target_esp32/gpio.h

@@ -26,6 +26,9 @@ class Gpio : public IGpio, public core::NonCopyable<Gpio> {
     //! Destroy.
     virtual ~Gpio() = default;
 
+    //! Return GPIO number.
+    GpioNum get_num() const override;
+
     //! Get the GPIO level.
     status::StatusCode get_level(Level& level) override;
 

components/ocs_test/test_gpio.cpp

@@ -16,6 +16,10 @@ TestGpio::TestGpio(status::StatusCode flip_code,
     , turn_off_code_(turn_off_code) {
 }
 
+io::gpio::GpioNum TestGpio::get_num() const {
+    return static_cast<io::gpio::GpioNum>(-1);
+}
+
 status::StatusCode TestGpio::get_level(io::gpio::Level& level) {
     level = level_;
 

components/ocs_test/test_gpio.h

@@ -19,6 +19,7 @@ class TestGpio : public io::gpio::IGpio, private core::NonCopyable<> {
              status::StatusCode turn_on_code,
              status::StatusCode turn_off_code);
 
+    io::gpio::GpioNum get_num() const override;
     status::StatusCode get_level(io::gpio::Level& level) override;
     status::StatusCode flip() override;
     status::StatusCode turn_on() override;