Add extracted tools: CitrineOS, OpenOCPP, ShapeShifter

- CitrineOS core extracted (CSMS OCPP 2.0.1)
- OpenOCPP extracted (firmware OCPP 1.6J/2.0.1)
- ShapeShifter library installed (pip install -e)
- ShapeShifter specification extracted
- EVerest extracted

TODO updated with progress

tools/EVerest-main/modules/HardwareDrivers/EVSE/PhyVersoBSP/phyverso_gpio/evGpio.cpp

@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Pionix GmbH and Contributors to EVerest
+
+#include "evGpio.h"
+#include <everest/logging.hpp>
+#include <fmt/format.h>
+
+evGpio::evGpio(evConfig& _verso_config) : verso_config(_verso_config) {
+}
+
+evGpio::~evGpio() {
+    // TODO: deinit gpios?
+}
+
+bool evGpio::init_gpios() {
+    push_buttons[CONN1_PB_STOP].set_enabled(verso_config.conf.conn1_gpio_stop_button_enabled);
+    push_buttons[CONN2_PB_STOP].set_enabled(verso_config.conf.conn2_gpio_stop_button_enabled);
+
+    if (push_buttons[CONN1_PB_STOP].get_enabled()) {
+        Everest::GpioSettings settings;
+        settings.chip_name = verso_config.conf.conn1_gpio_stop_button_bank;
+        settings.line_number = verso_config.conf.conn1_gpio_stop_button_pin;
+        settings.inverted = verso_config.conf.conn1_gpio_stop_button_invert;
+        push_buttons[CONN1_PB_STOP].init_gpio(settings);
+        if (not push_buttons[CONN1_PB_STOP].ready()) {
+            EVLOG_error << "Could not initialize Connector 1 push button";
+            return false;
+        }
+    }
+
+    if (push_buttons[CONN2_PB_STOP].get_enabled()) {
+        Everest::GpioSettings settings;
+        settings.chip_name = verso_config.conf.conn2_gpio_stop_button_bank;
+        settings.line_number = verso_config.conf.conn2_gpio_stop_button_pin;
+        settings.inverted = verso_config.conf.conn2_gpio_stop_button_invert;
+        push_buttons[CONN2_PB_STOP].init_gpio(settings);
+        if (not push_buttons[CONN2_PB_STOP].ready()) {
+            EVLOG_error << "Could not initialize Connector 2 push button";
+            return false;
+        }
+    }
+
+    return true;
+}
+
+void evGpio::run() {
+    poll_thread_handle = std::thread(&evGpio::poll_thread, this);
+}
+
+void evGpio::poll_thread() {
+    while (true) {
+        if (poll_thread_handle.shouldExit())
+            break;
+
+        // iterate over button list
+        for (int i = 0; i < NUM_PB_NAMES; i++) {
+            PushButton& button = push_buttons[i];
+            if (not button.get_enabled())
+                continue;
+
+            // check if GPIO is still usable
+            if (not button.ready()) {
+                EVLOG_error << fmt::format("Push button {} not ready. Stopping thread.", i + 1);
+                goto cleanup; // break out of polling loop immediatly and terminate thread
+            }
+
+            button.read();
+
+            if (button.get_state_changed()) {
+                // select which signal to send depending on button name
+                switch (i) {
+                case CONN1_PB_STOP:
+                    signal_stop_button_state(1, button.get_state());
+                    break;
+                case CONN2_PB_STOP:
+                    signal_stop_button_state(2, button.get_state());
+                    break;
+                default:
+                    break;
+                }
+            }
+        }
+
+        // sleep the nominal polling interval time
+        std::this_thread::sleep_for(std::chrono::milliseconds(poll_time_ms));
+    }
+
+cleanup : {}
+}