Update sdcard etc (#110)

Co-authored-by: José Simões <jose.simoes@eclo.solutions>

System.IO.FileSystem.UnitTests/DirectoryUnitTests.cs

@@ -98,6 +98,10 @@ public void TestEnumerateDirectories()
             Directory.CreateDirectory($@"{path}subdir2\");
             Directory.CreateDirectory($@"{path}subdir3\");
 
+            // Add files to test we don't see files only directories
+            File.Create($@"{path}file1.txt").Close();
+            File.Create($@"{path}file2.txt").Close();
+
             var directories = Directory.GetDirectories(path);
 
             Assert.AreEqual(3, directories.Length);
@@ -119,14 +123,27 @@ public void TestEnumerateFiles()
 
             Directory.CreateDirectory(path);
 
-            File.Create($@"{path}file1.txt").Close();
-            File.Create($@"{path}file2.txt").Close();
-            File.Create($@"{path}file3.txt").Close();
+            string file1 = $@"{path}file1.txt";
+            string file2 = $@"{path}file2.txt";
+            string file3 = $@"{path}file3.txt";
+
+            // Add a mix of directories and files
+            Directory.CreateDirectory($@"{path}TestDir1");
+            Directory.CreateDirectory($@"{path}TestDir2");
+
+            File.Create(file1).Close();
+            File.Create(file2).Close();
+            File.Create(file3).Close();
 
             var files = Directory.GetFiles(path);
 
             Assert.AreEqual(3, files.Length);
 
+            // Check correct file names returned
+            Assert.IsTrue((files[0] == file1), "Invalid file1 in GetFiles()");
+            Assert.IsTrue((files[1] == file2), "Invalid file2 in GetFiles()");
+            Assert.IsTrue((files[2] == file3), "Invalid file3 in GetFiles()");
+
             // Clean up after the test
             Directory.Delete(path, true);
         }

System.IO.FileSystem.UnitTests/FileSystemUnitTestsBase.cs

@@ -38,14 +38,20 @@ public abstract class FileSystemUnitTestsBase
         protected SDCard InitializeSDCard()
         {
             // Example initialization logic
-            SDCard.SDCardMmcParameters parameters = new SDCard.SDCardMmcParameters
+            SDCardMmcParameters parameters = new SDCardMmcParameters
             {
+                slotIndex = 0,
                 dataWidth = SDCard.SDDataWidth._4_bit,
+            };
+
+            CardDetectParameters cdParameters = new CardDetectParameters()
+            {
                 enableCardDetectPin = true,
-                cardDetectPin = 21
+                cardDetectPin = 21,
+                autoMount = true
             };
 
-            return new SDCard(parameters);
+            return new SDCard(parameters, cdParameters);
         }
 
         /// <summary>

System.IO.FileSystem/Path.cs

@@ -164,10 +164,8 @@ internal static int GetDirectoryNameOffset(string path)
                 return -1;
             }
 
-            while (end > rootLength && !PathInternal.IsDirectorySeparator(path[--end]))
-            {
-            }
-
+            while (end > rootLength && !PathInternal.IsDirectorySeparator(path[--end]));
+
             // Trim off any remaining separators (to deal with C:\foo\\bar)
             while (end > rootLength && PathInternal.IsDirectorySeparator(path[end - 1]))
             {

System.IO.FileSystem/Properties/AssemblyInfo.cs

@@ -17,7 +17,7 @@
 
 ////////////////////////////////////////////////////////////////
 // update this whenever the native assembly signature changes //
-[assembly: AssemblyNativeVersion("1.1.0.3")]
+[assembly: AssemblyNativeVersion("1.1.0.4")]
 ////////////////////////////////////////////////////////////////
 
 [assembly: InternalsVisibleTo("NFUnitTest, PublicKey=00240000048000009400000006020000002400005253413100040000010001001120aa3e809b3da4f65e1b1f65c0a3a1bf6335c39860ca41acb3c48de278c6b63c5df38239ec1f2e32d58cb897c8c174a5f8e78a9c0b6087d3aef373d7d0f3d9be67700fc2a5a38de1fb71b5b6f6046d841ff35abee2e0b0840a6291a312be184eb311baff5fef0ff6895b9a5f2253aed32fb06b819134f6bb9d531488a87ea2")]

System.IO.FileSystem/System.IO.FileSystem.nfproj

@@ -53,6 +53,10 @@
     <Compile Include="FileMode.cs" />
     <Compile Include="FileShare.cs" />
     <Compile Include="FileStream.cs" />
+    <Compile Include="nanoFramework\CardDetectChangedEventArgs.cs" />
+    <Compile Include="nanoFramework\CardDetectParameters.cs" />
+    <Compile Include="nanoFramework\SDCardMmcParameters.cs" />
+    <Compile Include="nanoFramework\SDCardSpiParameters.cs" />
     <Compile Include="NativeFindFile.cs" />
     <Compile Include="FileSystemInfo.cs" />
     <Compile Include="FileSystemManager.cs" />

System.IO.FileSystem/nanoFramework/CardDetectChangedEventArgs.cs

@@ -0,0 +1,50 @@
+//
+// Copyright (c) .NET Foundation and Contributors
+// See LICENSE file in the project root for full license information.
+//
+
+using System;
+
+namespace nanoFramework.System.IO
+{
+    /// <summary>
+    /// State of card detect
+    /// </summary>
+    public enum CardDetectState
+    {
+        /// <summary>
+        /// Card Inserted
+        /// </summary>
+        Inserted,
+
+        /// <summary>
+        /// Card removed
+        /// </summary>
+        Removed
+    };
+
+    /// <summary>
+    /// Arguments for Card detect event
+    /// </summary>
+    public class CardDetectChangedEventArgs : EventArgs
+    {
+        readonly private CardDetectState _cardState;
+        readonly private uint _slotIndex;
+
+        internal CardDetectChangedEventArgs(CardDetectState state, uint SlotIndex)
+        {
+            _cardState = state;
+            _slotIndex = SlotIndex;
+        }
+
+        /// <summary>
+        /// State of Card Detect.
+        /// </summary>
+        public CardDetectState CardState  => _cardState;
+
+        /// <summary>
+        /// SD card slot index
+        /// </summary>
+        public uint SlotIndex => _slotIndex;
+    }
+}

System.IO.FileSystem/nanoFramework/CardDetectParameters.cs

@@ -0,0 +1,41 @@
+//
+// Copyright (c) .NET Foundation and Contributors
+// See LICENSE file in the project root for full license information.
+//
+
+namespace nanoFramework.System.IO.FileSystem
+{
+    /// <summary>
+    /// Parameter used for Card detection when creating a SDcard instance.
+    /// </summary>
+    public class CardDetectParameters
+    {
+        /// <summary>
+        /// Set true when an Card Detect Pin is used. 
+        /// The cardDetectPin parameter must have a valid GPIO pin.
+        /// </summary>
+        /// <remarks>
+        /// Not all SD Card modules have a card detect pin or the pin connected to a GPIO pin. 
+        /// </remarks>
+        public bool enableCardDetectPin;
+
+        /// <summary>
+        /// The state of the pin when the card is detected.
+        /// Defaults to false(low) if not specified.
+        /// If using card detect logic then this depends on connected hardware.
+        /// </summary>
+        public bool cardDetectedState;
+
+        /// <summary>
+        /// The optional card detect GPIO pin which must be set to a valid pin if EnableCardDetectPin is true.
+        /// If defined a StorageEventManager event will be raised when a card is inserted or removed.
+        /// </summary>
+        public uint cardDetectPin;
+
+        /// <summary>
+        /// When enabled will try to automatically mount the SD card when the card is inserted.
+        /// If the card is removed unexpectedly it will try to unmount card to release resources.
+        /// </summary>
+        public bool autoMount;
+    }
+}