Devices: add a new ConsoleDevice

This new device is the userspace interface to the text console/tty.

kernel/include/fs/devices/Console.h

@@ -0,0 +1,9 @@
+#pragma once
+#include "fs/VFS.h"
+
+namespace ConsoleDevice
+{
+    VFS::Node* create_new();
+
+    ssize_t write(VFS::Node* node, size_t offset, size_t size, const char* buffer);
+}

kernel/src/fs/devices/Console.cpp

@@ -0,0 +1,25 @@
+#include "fs/devices/Console.h"
+#include "config.h"
+#include "render/TextRenderer.h"
+#include "std/stdio.h"
+#include "std/stdlib.h"
+#include "std/string.h"
+
+VFS::Node* ConsoleDevice::create_new()
+{
+    VFS::Node* dev = new VFS::Node;
+    dev->write_func = ConsoleDevice::write;
+    dev->inode = 0;
+    dev->length = 0;
+    dev->type = VFS_FILE;
+    dev->flags = 0;
+    strncpy(dev->name, "console", sizeof(dev->name));
+    return dev;
+}
+
+ssize_t ConsoleDevice::write(VFS::Node* node, size_t, size_t size, const char* buffer)
+{
+    if (!node) return -1;
+    TextRenderer::write(buffer, size);
+    return (ssize_t)size;
+}

kernel/src/fs/devices/DeviceFS.cpp

@@ -1,4 +1,5 @@
 #include "fs/devices/DeviceFS.h"
+#include "fs/devices/Console.h"
 #include "fs/devices/Version.h"
 #include "std/stdlib.h"
 #include "std/string.h"
@@ -21,6 +22,7 @@ VFS::Node* DeviceFS::get()
     strncpy(devfs_root->name, "dev", sizeof(devfs_root->name));
 
     devfs_files[devfs_file_count++] = VersionDevice::create_new();
+    devfs_files[devfs_file_count++] = ConsoleDevice::create_new();
     return devfs_root;
 }