WIP: drivers and boot

kernel/boot/boot.s

@@ -59,6 +59,10 @@ _start:
 	movl $(boot_page_table - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 0
 	movl $(boot_page_table - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 768 * 4
 
+# movl source, destination
+    movl $(boot_page_directory - 0xC0000000 + 0x003), boot_page_directory - 0xC0000000 + 1024 * 4
+
+
 	# Set cr3 to the address of the boot_page_directory
 	movl $(boot_page_directory - 0xC0000000), %ecx
 	movl %ecx, %cr3
@@ -98,7 +102,7 @@ isPaging:
 	call prekernelSetup
 
 	# Unmap the identity mapping as it is now unnecessary  
-	# movl $0, boot_page_directory + 0
+	movl $0, boot_page_directory + 0
 
 
 	call kernel

kernel/drivers/rtl8139/rtl8139.cpp

@@ -0,0 +1,35 @@
+#include "rtl8139.h"
+#include "../io/io.h"
+
+
+rtl8139::rtl8139(){
+
+}
+
+rtl8139::~rtl8139(){
+
+}
+
+void rtl8139::Wake(){
+    outb(ioaddr + CONFIG_1, 0x0);
+}
+
+void rtl8139::Reset(){
+    outb(ioaddr + CMD_OFFSET, 0x10);
+    // Wait for the reset procedure
+    while((inb(ioaddr + CMD_OFFSET) & 0x10) != 0) continue;
+}
+
+
+void rtl8139::Sleep(){
+    
+}
+
+void rtl8139::Receive(){
+    
+}
+
+
+void rtl8139::Transmit(){
+    
+}

kernel/drivers/rtl8139/rtl8139.h

@@ -0,0 +1,35 @@
+#pragma once 
+#define MAC05_OFFSET    0x00 // size 6
+#define MAC07_OFFSET    0x08 // size 8
+#define RBSTART_OFFSET  0x30 // size 4
+#define CMD_OFFSET      0x37 // size 1
+#define IMR_OFFSET      0x3C // size 2
+#define ISR_OFFSET      0x3E // size 2
+#define CONFIG_1 0x52
+
+// Copyright  © Nigel Barink 2023
+// Information source: https://wiki.osdev.org/RTL8139
+
+// Get me some networking !!  XD
+class NetworkDevice {
+    protected:
+
+};
+
+
+class rtl8139 : public  NetworkDevice { 
+    public:
+        rtl8139();
+        ~rtl8139();
+
+
+        void Wake();
+        void Reset();
+        
+        void Sleep();
+        void Receive();
+        void Transmit();
+    private:
+        int ioaddr ;
+
+};

kernel/interrupts/idt.cpp

@@ -4,7 +4,7 @@
 #include "../i386/processor.h"
 #include "../memory/VirtualMemoryManager.h"
 #include "../syscalls.h"
-
+#include "../klog.h"
 
 IDT_entry idt_table[256];
 IDT_ptr idt_ptr;
@@ -91,7 +91,6 @@ void irs_handler (registers* regs) {
             printf("EIP: 0x%x\n", regs->eip);
             printf("EAX: 0x%x\n", regs->eax);
             printf("EBP: 0x%x\n", regs->ebp);
-            while(true);
         break;
 
         case 9:

kernel/kernel.cpp

@@ -1,88 +1,99 @@
 /*
     Copyright © Nigel Barink 2023
 */
-#include "memory/memory.h"
-#include "memory/KernelHeap.h"
-#include "memory/gdt/gdtc.h"
-#include "memory/TaskStateSegment.h"
-#include "supervisorterminal/superVisorTerminal.h"
-#include "drivers/vga/VBE.h"
-#include "pci/pci.h"
-#include "drivers/pit/pit.h"
-#include "i386/processor.h"
-#include "terminal/kterm.h"
-#include "interrupts/idt.h"
-#include "storage/vfs/vfs.h"
-#include "storage/filesystems/FAT/FAT.h"
 #include "acpi/acpi.h"
-#include "memory/VirtualMemoryManager.h"
+#include "drivers/pit/pit.h"
+#include "drivers/vga/VBE.h"
+#include "i386/processor.h"
+#include "interrupts/idt.h"
 #include "klog.h"
+#include "memory/KernelHeap.h"
+#include "memory/TaskStateSegment.h"
+#include "memory/VirtualMemoryManager.h"
+#include "memory/gdt/gdtc.h"
+#include "memory/memory.h"
+#include "pci/pci.h"
+#include "storage/filesystems/FAT/FAT.h"
+#include "storage/vfs/vfs.h"
+#include "supervisorterminal/superVisorTerminal.h"
+#include "terminal/kterm.h"
 
-
-extern BootInfoBlock* BIB;
-extern "C"  void LoadGlobalDescriptorTable();
+extern BootInfoBlock *BIB;
+extern "C" void LoadGlobalDescriptorTable();
 extern "C" void jump_usermode();
 
-void initBootDrive(){
-    printf("Boot device: 0x%x\n", BIB->bootDeviceID);
-    unsigned int part3 = BIB->bootDeviceID & 0xFF;
-    unsigned int part2 = (BIB->bootDeviceID & 0xFF00) >> 8;
-    unsigned int part1 = (BIB->bootDeviceID & 0xFF0000) >> 16;
-    unsigned int drive = (BIB->bootDeviceID & 0xFF000000) >> 24;
-    if (drive == 0x80 )
-        printf("booted from disk!\n");
-    if(drive == 0x00)
-        printf("booted from floppy disk\n");
+void initBootDrive() {
+  printf("Boot device: 0x%x\n", BIB->bootDeviceID);
+  unsigned int part3 = BIB->bootDeviceID & 0xFF;
+  unsigned int part2 = (BIB->bootDeviceID & 0xFF00) >> 8;
+  unsigned int part1 = (BIB->bootDeviceID & 0xFF0000) >> 16;
+  unsigned int drive = (BIB->bootDeviceID & 0xFF000000) >> 24;
+  if (drive == 0x80)
+    printf("booted from disk!\n");
+  if (drive == 0x00)
+    printf("booted from floppy disk\n");
 
-    printf("Part1: %d, Part2: %d, Part3: %d\n", part1, part2 , part3);
-    ATAPIO::Identify(ATAPIO_PORT::Primary, DEVICE_DRIVE::MASTER);
+  printf("Part1: %d, Part2: %d, Part3: %d\n", part1, part2, part3);
+  ATAPIO::Identify(ATAPIO_PORT::Primary, DEVICE_DRIVE::MASTER);
 }
+extern uint32_t *boot_page_directory;
+extern "C" void kernel() {
 
-extern "C" void kernel ()
-{
-    kterm_init();
-    setup_tss();
-    initGDT();
-    initidt();
-    LoadGlobalDescriptorTable();
-    flush_tss();
+  while (true) {
+    __asm__ __volatile__("NOP");
+  };
+  // kterm_init();
 
+  uint32_t cr3;
+  __asm__ __volatile__("mov %%cr3, %%eax\n\t"
+                       "mov %%eax, %0\n\t"
+                       : "=m"(cr3)
+                       :
+                       : "%eax");
 
-    print_info("Memory setup complete!\n");
-    // Enable interrupts
-    asm volatile("STI");
+  printf("value of cr3: 0x%x\n", cr3);
+  // printf("page directory entry : 0x%x\n" , boot_page_directory[1023]);
+  while (true)
+    ;
 
+  setup_tss();
+  initGDT();
+  initidt();
+  LoadGlobalDescriptorTable();
+  flush_tss();
 
+  print_info("Memory setup complete!\n");
+  // Enable interrupts
+  asm volatile("STI");
 
-    initHeap();
-    //pit_initialise();
+  initHeap();
+  pit_initialise();
 
+  PCI::Scan();
+  processor::initialize();
+  processor::enable_protectedMode();
+  initBootDrive();
+  VirtualFileSystem::initialize();
 
-    //ACPI::initialize();
-    //PCI::Scan();
-    processor::initialize();
-    processor::enable_protectedMode();
-    initBootDrive();
-    VirtualFileSystem::initialize();
+  print_dbg("Hello debug!\n");
+  print_info("Hello info!\n");
+  print_err("Hello error!\n");
 
-    print_dbg("Hello debug!\n");
-    print_info("Hello info!\n");
-    print_err("Hello error!\n");
+  ACPI::initialize();
 
 #define VFS_EXAMPLE
 #ifdef VFS_EXAMPLE
-    auto fontFile = VirtualFileSystem::open("/FONT    PSF", 0);
-    printf("Size of font file: %d bytes\n", fontFile->root->size); // COOL This Works like a charm
-
+  auto fontFile = VirtualFileSystem::open("/FONT    PSF", 0);
+  printf("Size of font file: %d bytes\n",
+         fontFile->root->size); // COOL This Works like a charm
 
 #endif
 
 #ifdef USERMODE_RELEASE
-    // Lets jump into user mode
-    jump_usermode();
+  // Lets jump into user mode
+  jump_usermode();
 #else
-    startSuperVisorTerminal();
+  startSuperVisorTerminal();
 
 #endif
-
 }

kernel/prekernel/prekernel.cpp

@@ -53,7 +53,7 @@ extern "C" void prekernelSetup  ( unsigned long magic, multiboot_info_t* mbi)
                         if(mmap->type == MULTIBOOT_MEMORY_ACPI_RECLAIMABLE)
                                 allocate_region(mmap->addr, mmap->len);
                                 // memory map
-                                Immediate_Map(mmap->addr , mmap->addr);
+                                Immediate_Map(PADDR_TO_VADDR(mmap->addr) , mmap->addr);
                         if(mmap->type == MULTIBOOT_MEMORY_RESERVED)
                                 allocate_region(mmap->addr, mmap->len);
                         if(mmap->type == MULTIBOOT_MEMORY_NVS)