Add (optional) Focus hooks

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

src/Kaleidoscope-EEPROM-Settings.h

@@ -19,3 +19,4 @@
 #pragma once
 
 #include <Kaleidoscope/EEPROM-Settings.h>
+#include <Kaleidoscope/EEPROM-Settings-Focus.h>

src/Kaleidoscope/EEPROM-Settings-Focus.cpp

@@ -0,0 +1,51 @@
+/* -*- mode: c++ -*-
+ * Kaleidoscope-EEPROM-Settings -- Basic EEPROM settings plugin for Kaleidoscope.
+ * Copyright (C) 2017  Gergely Nagy
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <Kaleidoscope-EEPROM-Settings.h>
+
+namespace FocusHooks {
+  bool settings (const char *command) {
+    enum {
+      ISVALID,
+      GETVERSION,
+    } subCommand;
+
+    if (strncmp_P (command, PSTR ("settings."), 9) != 0)
+      return false;
+
+    if (strcmp_P (command + 9, PSTR ("valid?")) == 0)
+      subCommand = ISVALID;
+    else if (strcmp_P (command + 9, PSTR ("version")) == 0)
+      subCommand = GETVERSION;
+    else
+      return false;
+
+    switch (subCommand) {
+    case ISVALID:
+      Serial.println (EEPROMSettings.isValid () ? F("yes") : F("no"));
+      break;
+    case GETVERSION:
+      Serial.println (EEPROMSettings.version ());
+      break;
+    }
+
+    Serial.read ();
+
+    return true;
+  }
+};

src/Kaleidoscope/EEPROM-Settings-Focus.h

@@ -0,0 +1,33 @@
+/* -*- mode: c++ -*-
+ * Kaleidoscope-EEPROM-Settings -- Basic EEPROM settings plugin for Kaleidoscope.
+ * Copyright (C) 2017  Gergely Nagy
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <Kaleidoscope.h>
+
+namespace FocusHooks {
+  bool settings (const char *command);
+};
+
+#define FOCUS_HOOK_SETTINGS FOCUS_HOOK(FocusHooks::settings,            \
+                                       "settings.valid?\n"              \
+                                       "---------------\n"              \
+                                       "Return whether the EEPROM settings are valid, or not.\n\n" \
+                                       "settings.version\n"             \
+                                       "----------------\n"             \
+                                       "Return the version of the EEPROM settings.")