gpio configuration via web interface

Gpio.cpp

@@ -13,9 +13,9 @@ const uint Gpio::_debounceTime = 1000;
 Gpio::Gpio(Preferences* preferences, NukiWrapper* nuki)
 : _preferences(preferences)
 {
+    _inst = this;
     loadPinConfiguration();
 
-    _inst = this;
     _inst->init(nuki);
 }
 
@@ -25,6 +25,13 @@ void Gpio::init(NukiWrapper* nuki)
 
     for(const auto& entry : _inst->_pinConfiguration)
     {
+        const auto it = std::find(_inst->availablePins().begin(), _inst->availablePins().end(), entry.pin);
+
+        if(it == _inst->availablePins().end())
+        {
+            continue;
+        }
+
         switch(entry.role)
         {
             case PinRole::InputLock:
@@ -46,6 +53,117 @@ void Gpio::init(NukiWrapper* nuki)
     }
 }
 
+const std::vector<uint8_t>& Gpio::availablePins() const
+{
+    return _availablePins;
+}
+
+void Gpio::loadPinConfiguration()
+{
+    size_t storedLength = _preferences->getBytesLength(preference_gpio_configuration);
+    if(storedLength == 0)
+    {
+        return;
+    }
+
+    uint8_t serialized[storedLength];
+    memset(serialized, 0, sizeof(serialized));
+
+    size_t size = _preferences->getBytes(preference_gpio_configuration, serialized, sizeof(serialized));
+
+    if(size == 0)
+    {
+        return;
+    }
+
+    size_t numEntries = size / 2;
+
+    _pinConfiguration.clear();
+    _pinConfiguration.reserve(numEntries);
+
+    for(int i=0; i < numEntries; i++)
+    {
+        PinEntry entry;
+        entry.pin = serialized[i * 2];
+        entry.role = (PinRole) serialized[(i * 2 + 1)];
+        if(entry.role != PinRole::Disabled)
+        {
+            _pinConfiguration.push_back(entry);
+        }
+    }
+}
+
+void Gpio::savePinConfiguration(const std::vector<PinEntry> &pinConfiguration)
+{
+    int8_t serialized[pinConfiguration.size() * 2];
+    memset(serialized, 0, sizeof(serialized));
+
+    int len = pinConfiguration.size();
+    for(int i=0; i < len; i++)
+    {
+        const auto& entry = pinConfiguration[i];
+
+        if(entry.role != PinRole::Disabled)
+        {
+            serialized[i * 2] = entry.pin;
+            serialized[i * 2 + 1] = (int8_t) entry.role;
+        }
+    }
+
+    _preferences->putBytes(preference_gpio_configuration, serialized, sizeof(serialized));
+}
+
+const std::vector<PinEntry> &Gpio::pinConfiguration() const
+{
+    return _pinConfiguration;
+}
+
+String Gpio::getRoleDescription(PinRole role) const
+{
+    switch(role)
+    {
+        case PinRole::Disabled:
+            return "Disabled";
+        case PinRole::InputLock:
+            return "Input: Lock";
+        case PinRole::InputUnlock:
+            return "Input: Unlock";
+        case PinRole::InputUnlatch:
+            return "Input: Unlatch";
+        case PinRole::OutputHighLocked:
+            return "Output: High when locked";
+        case PinRole::OutputHighUnlocked:
+            return "Output: High when unlocked";
+        default:
+            return "Unknown";
+    }
+}
+
+void Gpio::getConfigurationText(String& text, const std::vector<PinEntry>& pinConfiguration) const
+{
+    text.clear();
+
+    for(const auto& entry : pinConfiguration)
+    {
+        if(entry.role != PinRole::Disabled)
+        {
+            text.concat(entry.pin);
+            if(entry.pin < 10)
+            {
+                text.concat(' ');
+            }
+            text.concat(": ");
+            text.concat(getRoleDescription(entry.role));
+            text.concat("\n\r");
+        }
+    }
+}
+
+const std::vector<PinRole>& Gpio::getAllRoles() const
+{
+    return _allRoles;
+}
+
 void Gpio::isrLock()
 {
     if(millis() < _lockedTs) return;
@@ -65,47 +183,4 @@ void Gpio::isrUnlatch()
     if(millis() < _lockedTs) return;
     _nuki->unlatch();
     _lockedTs = millis() + _debounceTime;
-}
+}
-
-const std::vector<uint8_t>& Gpio::availablePins() const
-{
-    return _availablePins;
-}
-
-void Gpio::loadPinConfiguration()
-{
-    uint8_t serialized[_availablePins.size() * 2];
-
-    size_t size = _preferences->getBytes(preference_gpio_configuration, serialized, _availablePins.size() * 2);
-    if(size == 0)
-    {
-        return;
-    }
-
-    size_t numEntries = size / 2;
-
-    _pinConfiguration.clear();
-    _pinConfiguration.reserve(numEntries);
-    for(int i=0; i < numEntries; i++)
-    {
-        PinEntry entry;
-        entry.pin = i * 2;
-        entry.role = (PinRole)(i * 2 +1);
-        _pinConfiguration.push_back(entry);
-    }
-}
-
-void Gpio::savePinConfiguration(const std::vector<PinEntry> &pinConfiguration)
-{
-    uint8_t serialized[pinConfiguration.size() * 2];
-
-    int len = pinConfiguration.size();
-    for(int i=0; i < len; i++)
-    {
-        const auto& entry = pinConfiguration[i];
-        serialized[i * 2] = entry.pin;
-        serialized[i * 2 + 1] = (int8_t)entry.role;
-    }
-
-    _preferences->putBytes(preference_gpio_configuration, serialized, sizeof(serialized));
-}

Gpio.h

@@ -5,7 +5,7 @@
 
 enum class PinRole
 {
-    Undefined,
+    Disabled,
     InputLock,
     InputUnlock,
     InputUnlatch,
@@ -16,7 +16,7 @@ enum class PinRole
 struct PinEntry
 {
     uint8_t pin = 0;
-    PinRole role = PinRole::Undefined;
+    PinRole role = PinRole::Disabled;
 };
 
 class Gpio
@@ -29,9 +29,24 @@ public:
     void savePinConfiguration(const std::vector<PinEntry>& pinConfiguration);
 
     const std::vector<uint8_t>& availablePins() const;
+    const std::vector<PinEntry>& pinConfiguration() const;
+
+    String getRoleDescription(PinRole role) const;
+    void getConfigurationText(String& text, const std::vector<PinEntry>& pinConfiguration) const;
+
+    const std::vector<PinRole>& getAllRoles() const;
 
 private:
     const std::vector<uint8_t> _availablePins = { 2, 4, 5, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 32, 33 };
+    const std::vector<PinRole> _allRoles =
+        {
+            PinRole::Disabled,
+            PinRole::InputLock,
+            PinRole::InputUnlock,
+            PinRole::InputUnlatch,
+            PinRole::OutputHighLocked,
+            PinRole::OutputHighUnlocked
+        };
 
     std::vector<PinEntry> _pinConfiguration;
     static const uint _debounceTime;

RestartReason.h

@@ -12,6 +12,7 @@ enum class RestartReason
     ReconfigureLAN8720,
     NetworkDeviceCriticalFailure,
     ConfigurationUpdated,
+    GpioConfigurationUpdated,
     RestartTimer,
     OTACompleted,
     OTATimeout,
@@ -69,6 +70,8 @@ inline static String getRestartReason()
             return "NetworkDeviceCriticalFailure";
         case RestartReason::ConfigurationUpdated:
             return "ConfigurationUpdated";
+        case RestartReason::GpioConfigurationUpdated:
+            return "GpioConfigurationUpdated";
         case RestartReason::RestartTimer:
             return "RestartTimer";
         case RestartReason::OTACompleted:

WebCfgServer.cpp

@@ -7,11 +7,12 @@
 #include "RestartReason.h"
 #include <esp_task_wdt.h>
 
-WebCfgServer::WebCfgServer(NukiWrapper* nuki, NukiOpenerWrapper* nukiOpener, Network* network, EthServer* ethServer, Preferences* preferences, bool allowRestartToPortal)
+WebCfgServer::WebCfgServer(NukiWrapper* nuki, NukiOpenerWrapper* nukiOpener, Network* network, Gpio* gpio, EthServer* ethServer, Preferences* preferences, bool allowRestartToPortal)
 : _server(ethServer),
   _nuki(nuki),
   _nukiOpener(nukiOpener),
   _network(network),
+  _gpio(gpio),
   _preferences(preferences),
   _allowRestartToPortal(allowRestartToPortal)
 {
@@ -93,6 +94,14 @@ void WebCfgServer::initialize()
         buildNukiConfigHtml(response);
         _server.send(200, "text/html", response);
     });
+    _server.on("/gpiocfg", [&]() {
+        if (_hasCredentials && !_server.authenticate(_credUser, _credPassword)) {
+            return _server.requestAuthentication();
+        }
+        String response = "";
+        buildGpioConfigHtml(response);
+        _server.send(200, "text/html", response);
+    });
     _server.on("/wifi", [&]() {
         if (_hasCredentials && !_server.authenticate(_credUser, _credPassword)) {
             return _server.requestAuthentication();
@@ -128,7 +137,8 @@ void WebCfgServer::initialize()
             _network->reconfigureDevice();
         }
     });
-    _server.on("/savecfg", [&]() {
+    _server.on("/savecfg", [&]()
+    {
         if (_hasCredentials && !_server.authenticate(_credUser, _credPassword)) {
             return _server.requestAuthentication();
         }
@@ -152,6 +162,22 @@ void WebCfgServer::initialize()
             waitAndProcess(false, 1000);
         }
     });
+    _server.on("/savegpiocfg", [&]()
+    {
+        if (_hasCredentials && !_server.authenticate(_credUser, _credPassword)) {
+            return _server.requestAuthentication();
+        }
+        processGpioArgs();
+
+        String response = "";
+        buildConfirmHtml(response, "");
+        _server.send(200, "text/html", response);
+        Log->println(F("Restarting"));
+
+        waitAndProcess(true, 1000);
+        restartEsp(RestartReason::GpioConfigurationUpdated);
+    });
+
     _server.on("/ota", [&]() {
         if (_hasCredentials && !_server.authenticate(_credUser, _credPassword)) {
             return _server.requestAuthentication();
@@ -523,6 +549,32 @@ bool WebCfgServer::processArgs(String& message)
     return configChanged;
 }
 
+
+void WebCfgServer::processGpioArgs()
+{
+    int count = _server.args();
+
+    std::vector<PinEntry> pinConfiguration;
+
+    for(int index = 0; index < count; index++)
+    {
+        String key = _server.argName(index);
+        String value = _server.arg(index);
+
+        PinRole role = (PinRole)value.toInt();
+        if(role != PinRole::Disabled)
+        {
+            PinEntry entry;
+            entry.pin = key.toInt();
+            entry.role = role;
+            pinConfiguration.push_back(entry);
+        }
+    }
+
+    _gpio->savePinConfiguration(pinConfiguration);
+}
+
+
 void WebCfgServer::update()
 {
     if(_otaStartTs > 0 && (millis() - _otaStartTs) > 120000)
@@ -575,6 +627,9 @@ void WebCfgServer::buildHtml(String& response)
     response.concat("<BR><BR><h3>Credentials</h3>");
     buildNavigationButton(response, "Edit", "/cred", _pinsConfigured ? "" : "<font color=\"#f07000\"><em>(!) Please configure PIN</em></font>");
 
+    response.concat("<BR><BR><h3>GPIO Configuration</h3>");
+    buildNavigationButton(response, "Edit", "/gpiocfg");
+
     response.concat("<BR><BR><h3>Firmware update</h3>");
     buildNavigationButton(response, "Open", "/ota");
 
@@ -780,6 +835,29 @@ void WebCfgServer::buildNukiConfigHtml(String &response)
     response.concat("</BODY></HTML>");
 }
 
+void WebCfgServer::buildGpioConfigHtml(String &response)
+{
+    buildHtmlHeader(response);
+
+    response.concat("<FORM ACTION=savegpiocfg method='POST'>");
+    response.concat("<h3>GPIO Configuration</h3>");
+    response.concat("<table>");
+
+    const auto& availablePins = _gpio->availablePins();
+    for(const auto& pin : availablePins)
+    {
+        String pinStr = String(pin);
+        String pinDesc = "Gpio " + pinStr;
+
+        printDropDown(response, pinStr.c_str(), pinDesc.c_str(), getPreselectionForGpio(pin), getGpioOptions());
+    }
+
+    response.concat("</table>");
+    response.concat("<br><INPUT TYPE=SUBMIT NAME=\"submit\" VALUE=\"Save\">");
+    response.concat("</FORM>");
+    response.concat("</BODY></HTML>");
+}
+
 void WebCfgServer::buildConfirmHtml(String &response, const String &message, uint32_t redirectDelay)
 {
     String delay(redirectDelay);
@@ -1226,3 +1304,32 @@ const std::vector<std::pair<String, String>> WebCfgServer::getNetworkGpioOptions
 
     return options;
 }
+
+const std::vector<std::pair<String, String>> WebCfgServer::getGpioOptions() const
+{
+    std::vector<std::pair<String, String>> options;
+
+    const auto& roles = _gpio->getAllRoles();
+
+    for(const auto& role : roles)
+    {
+        options.push_back( std::make_pair(String((int)role), _gpio->getRoleDescription(role)));
+    }
+
+    return options;
+}
+
+String WebCfgServer::getPreselectionForGpio(const uint8_t &pin)
+{
+    const std::vector<PinEntry>& pinConfiguration = _gpio->pinConfiguration();
+
+    for(const auto& entry : pinConfiguration)
+    {
+        if(pin == entry.pin)
+        {
+            return String((int8_t)entry.role);
+        }
+    }
+
+    return String((int8_t)PinRole::Disabled);
+}

WebCfgServer.h

@@ -6,6 +6,7 @@
 #include "NetworkLock.h"
 #include "NukiOpenerWrapper.h"
 #include "Ota.h"
+#include "Gpio.h"
 
 extern TaskHandle_t networkTaskHandle;
 extern TaskHandle_t nukiTaskHandle;
@@ -26,7 +27,7 @@ enum class TokenType
 class WebCfgServer
 {
 public:
-    WebCfgServer(NukiWrapper* nuki, NukiOpenerWrapper* nukiOpener, Network* network, EthServer* ethServer, Preferences* preferences, bool allowRestartToPortal);
+    WebCfgServer(NukiWrapper* nuki, NukiOpenerWrapper* nukiOpener, Network* network, Gpio* gpio, EthServer* ethServer, Preferences* preferences, bool allowRestartToPortal);
     ~WebCfgServer() = default;
 
     void initialize();
@@ -34,12 +35,14 @@ public:
 
 private:
     bool processArgs(String& message);
+    void processGpioArgs();
     void buildHtml(String& response);
     void buildCredHtml(String& response);
     void buildOtaHtml(String& response, bool errored);
     void buildOtaCompletedHtml(String& response);
     void buildMqttConfigHtml(String& response);
     void buildNukiConfigHtml(String& response);
+    void buildGpioConfigHtml(String& response);
     void buildConfirmHtml(String& response, const String &message, uint32_t redirectDelay = 5);
     void buildConfigureWifiHtml(String& response);
     void buildInfoHtml(String& response);
@@ -57,6 +60,8 @@ private:
 
     const std::vector<std::pair<String, String>> getNetworkDetectionOptions() const;
     const std::vector<std::pair<String, String>> getNetworkGpioOptions() const;
+    const std::vector<std::pair<String, String>> getGpioOptions() const;
+    String getPreselectionForGpio(const uint8_t& pin);
 
     void printParameter(String& response, const char* description, const char* value, const char *link = "");
 
@@ -65,10 +70,11 @@ private:
     void handleOtaUpload();
 
     WebServer _server;
-    NukiWrapper* _nuki;
+    NukiWrapper* _nuki = nullptr;
-    NukiOpenerWrapper* _nukiOpener;
+    NukiOpenerWrapper* _nukiOpener = nullptr;
-    Network* _network;
+    Network* _network = nullptr;
-    Preferences* _preferences;
+    Gpio* _gpio = nullptr;
+    Preferences* _preferences = nullptr;
     Ota _ota;
 
     bool _hasCredentials = false;

main.cpp

@@ -215,6 +215,9 @@ void setup()
         nuki->initialize(firstStart);
 
         gpio = new Gpio(preferences, nuki);
+        String gpioDesc;
+        gpio->getConfigurationText(gpioDesc, gpio->pinConfiguration());
+        Serial.print(gpioDesc.c_str());
 
 //        if(preferences->getBool(preference_gpio_locking_enabled))
 //        {
@@ -229,7 +232,7 @@ void setup()
         nukiOpener->initialize();
     }
 
-    webCfgServer = new WebCfgServer(nuki, nukiOpener, network, ethServer, preferences, network->networkDeviceType() == NetworkDeviceType::WiFi);
+    webCfgServer = new WebCfgServer(nuki, nukiOpener, network, gpio, ethServer, preferences, network->networkDeviceType() == NetworkDeviceType::WiFi);
     webCfgServer->initialize();
 
     presenceDetection = new PresenceDetection(preferences, bleScanner, network, CharBuffer::get(), CHAR_BUFFER_SIZE);