mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-25 22:14:37 +00:00
344 lines
12 KiB
C++
344 lines
12 KiB
C++
#include <types.h>
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#include <boot/protocols/multiboot2.h>
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#include <io.h>
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#include "../../kernel.h"
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enum VideoType
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{
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VIDEO_TYPE_NONE = 0x00,
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VIDEO_TYPE_COLOUR = 0x20,
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VIDEO_TYPE_MONOCHROME = 0x30,
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};
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uint16_t GetBiosAreaHardware()
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{
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const uint16_t *BIOSDataAreaDetectedHardware = (const uint16_t *)0x410;
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return *BIOSDataAreaDetectedHardware;
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}
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enum VideoType GetVideoType() { return (enum VideoType)(GetBiosAreaHardware() & 0x30); }
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void GetSMBIOS()
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{
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unsigned char *SMBIOSAddress = (unsigned char *)0xF0000;
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while ((unsigned int)(unsigned long)SMBIOSAddress < 0x100000)
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{
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if (SMBIOSAddress[0] == '_' &&
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SMBIOSAddress[1] == 'S' &&
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SMBIOSAddress[2] == 'M' &&
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SMBIOSAddress[3] == '_')
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{
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unsigned char Checksum = 0;
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int Length = SMBIOSAddress[5];
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for (int i = 0; i < Length; i++)
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Checksum += SMBIOSAddress[i];
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if (Checksum == 0)
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break;
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}
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SMBIOSAddress += 16;
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}
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if ((unsigned int)(unsigned long)SMBIOSAddress == 0x100000)
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{
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// No SMBIOS found
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}
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}
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struct multiboot_info
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{
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multiboot_uint32_t Size;
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multiboot_uint32_t Reserved;
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struct multiboot_tag *Tag;
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};
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EXTERNC void x32Multiboot2Entry(multiboot_info *Info, unsigned int Magic)
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{
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if (Info == NULL || Magic == NULL)
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{
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if (Magic == NULL)
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error("Multiboot magic is NULL");
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if (Info == NULL)
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error("Multiboot info is NULL");
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CPU::Stop();
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}
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else if (Magic != MULTIBOOT2_BOOTLOADER_MAGIC)
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{
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error("Multiboot magic is invalid (%#x != %#x)", Magic, MULTIBOOT2_BOOTLOADER_MAGIC);
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trace("Hello, World!");
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CPU::Stop();
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}
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uint64_t div = 1193180 / 1000;
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outb(0x43, 0xB6);
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outb(0x42, (uint8_t)div);
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outb(0x42, (uint8_t)(div >> 8));
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uint8_t tmp = inb(0x61);
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if (tmp != (tmp | 3))
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outb(0x61, tmp | 3);
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BootInfo binfo;
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uint32_t Itr = 0;
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for (uint32_t i = 8; i < Info->Size; i += Itr)
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{
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multiboot_tag *Tag = (multiboot_tag *)((uint8_t *)Info + i);
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if (Tag->type == MULTIBOOT_TAG_TYPE_END)
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break;
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switch (Tag->type)
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{
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case MULTIBOOT_TAG_TYPE_CMDLINE:
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{
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strncpy(binfo.Kernel.CommandLine,
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((multiboot_tag_string *)Tag)->string,
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strlen(((multiboot_tag_string *)Tag)->string));
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break;
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}
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case MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME:
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{
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strncpy(binfo.Bootloader.Name,
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((multiboot_tag_string *)Tag)->string,
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strlen(((multiboot_tag_string *)Tag)->string));
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break;
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}
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case MULTIBOOT_TAG_TYPE_MODULE:
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{
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multiboot_tag_module *module = (multiboot_tag_module *)Tag;
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static int module_count = 0;
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binfo.Modules[module_count++].Address = (void *)module->mod_start;
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binfo.Modules[module_count++].Size = module->size;
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strncpy(binfo.Modules[module_count++].Path, "(null)", 6);
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strncpy(binfo.Modules[module_count++].CommandLine, module->cmdline,
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strlen(module->cmdline));
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break;
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}
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case MULTIBOOT_TAG_TYPE_BASIC_MEMINFO:
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{
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multiboot_tag_basic_meminfo *meminfo = (multiboot_tag_basic_meminfo *)Tag;
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fixme("basic_meminfo->[mem_lower: %#x, mem_upper: %#x]",
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meminfo->mem_lower, meminfo->mem_upper);
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break;
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}
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case MULTIBOOT_TAG_TYPE_BOOTDEV:
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{
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multiboot_tag_bootdev *bootdev = (multiboot_tag_bootdev *)Tag;
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fixme("bootdev->[biosdev: %#x, slice: %#x, part: %#x]",
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bootdev->biosdev, bootdev->slice, bootdev->part);
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break;
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}
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case MULTIBOOT_TAG_TYPE_MMAP:
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{
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multiboot_tag_mmap *mmap = (multiboot_tag_mmap *)Tag;
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uint32_t EntryCount = mmap->size / sizeof(multiboot_mmap_entry);
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binfo.Memory.Entries = EntryCount;
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for (uint32_t i = 0; i < EntryCount; i++)
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{
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if (EntryCount > MAX_MEMORY_ENTRIES)
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{
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warn("Too many memory entries, skipping the rest...");
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break;
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}
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multiboot_mmap_entry entry = mmap->entries[i];
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binfo.Memory.Size += entry.len;
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switch (entry.type)
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{
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case MULTIBOOT_MEMORY_AVAILABLE:
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binfo.Memory.Entry[i].BaseAddress = (void *)entry.addr;
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binfo.Memory.Entry[i].Length = entry.len;
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binfo.Memory.Entry[i].Type = Usable;
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break;
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case MULTIBOOT_MEMORY_RESERVED:
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binfo.Memory.Entry[i].BaseAddress = (void *)entry.addr;
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binfo.Memory.Entry[i].Length = entry.len;
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binfo.Memory.Entry[i].Type = Reserved;
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break;
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case MULTIBOOT_MEMORY_ACPI_RECLAIMABLE:
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binfo.Memory.Entry[i].BaseAddress = (void *)entry.addr;
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binfo.Memory.Entry[i].Length = entry.len;
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binfo.Memory.Entry[i].Type = ACPIReclaimable;
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break;
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case MULTIBOOT_MEMORY_NVS:
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binfo.Memory.Entry[i].BaseAddress = (void *)entry.addr;
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binfo.Memory.Entry[i].Length = entry.len;
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binfo.Memory.Entry[i].Type = ACPINVS;
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break;
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case MULTIBOOT_MEMORY_BADRAM:
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binfo.Memory.Entry[i].BaseAddress = (void *)entry.addr;
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binfo.Memory.Entry[i].Length = entry.len;
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binfo.Memory.Entry[i].Type = BadMemory;
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break;
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default:
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binfo.Memory.Entry[i].BaseAddress = (void *)entry.addr;
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binfo.Memory.Entry[i].Length = entry.len;
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binfo.Memory.Entry[i].Type = Unknown;
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break;
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}
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}
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break;
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}
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case MULTIBOOT_TAG_TYPE_VBE:
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{
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multiboot_tag_vbe *vbe = (multiboot_tag_vbe *)Tag;
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fixme("vbe->[vbe_mode: %#x, vbe_interface_seg: %#x, vbe_interface_off: %#x, vbe_interface_len: %#x]",
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vbe->vbe_mode, vbe->vbe_interface_seg, vbe->vbe_interface_off, vbe->vbe_interface_len);
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break;
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}
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case MULTIBOOT_TAG_TYPE_FRAMEBUFFER:
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{
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multiboot_tag_framebuffer *fb = (multiboot_tag_framebuffer *)Tag;
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static int fb_count = 0;
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binfo.Framebuffer[fb_count].BaseAddress = (void *)fb->common.framebuffer_addr;
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binfo.Framebuffer[fb_count].Width = fb->common.framebuffer_width;
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binfo.Framebuffer[fb_count].Height = fb->common.framebuffer_height;
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binfo.Framebuffer[fb_count].Pitch = fb->common.framebuffer_pitch;
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binfo.Framebuffer[fb_count].BitsPerPixel = fb->common.framebuffer_bpp;
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binfo.Framebuffer[fb_count].MemoryModel = fb->common.framebuffer_type;
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switch (fb->common.framebuffer_type)
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{
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case MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED:
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{
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fixme("indexed");
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break;
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}
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case MULTIBOOT_FRAMEBUFFER_TYPE_RGB:
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{
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binfo.Framebuffer[fb_count].RedMaskSize = fb->framebuffer_red_mask_size;
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binfo.Framebuffer[fb_count].RedMaskShift = fb->framebuffer_red_field_position;
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binfo.Framebuffer[fb_count].GreenMaskSize = fb->framebuffer_green_mask_size;
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binfo.Framebuffer[fb_count].GreenMaskShift = fb->framebuffer_green_field_position;
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binfo.Framebuffer[fb_count].BlueMaskSize = fb->framebuffer_blue_mask_size;
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binfo.Framebuffer[fb_count].BlueMaskShift = fb->framebuffer_blue_field_position;
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break;
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}
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case MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT:
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{
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fixme("ega_text");
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break;
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}
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}
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debug("Framebuffer %d: %dx%d %d bpp", i, fb->common.framebuffer_width, fb->common.framebuffer_height, fb->common.framebuffer_bpp);
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debug("More info:\nAddress: %p\nPitch: %lld\nMemoryModel: %d\nRedMaskSize: %d\nRedMaskShift: %d\nGreenMaskSize: %d\nGreenMaskShift: %d\nBlueMaskSize: %d\nBlueMaskShift: %d",
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fb->common.framebuffer_addr, fb->common.framebuffer_pitch, fb->common.framebuffer_type,
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fb->framebuffer_red_mask_size, fb->framebuffer_red_field_position, fb->framebuffer_green_mask_size,
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fb->framebuffer_green_field_position, fb->framebuffer_blue_mask_size, fb->framebuffer_blue_field_position);
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fb_count++;
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break;
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}
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case MULTIBOOT_TAG_TYPE_ELF_SECTIONS:
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{
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multiboot_tag_elf_sections *elf = (multiboot_tag_elf_sections *)Tag;
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fixme("elf_sections->[num=%d, size=%d, entsize=%d, shndx=%d]",
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elf->num, elf->size, elf->entsize, elf->shndx);
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break;
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}
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case MULTIBOOT_TAG_TYPE_APM:
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{
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multiboot_tag_apm *apm = (multiboot_tag_apm *)Tag;
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fixme("apm->[version: %d, cseg: %d, offset: %d, cseg_16: %d, dseg: %d, flags: %d, cseg_len: %d, cseg_16_len: %d, dseg_len: %d]",
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apm->version, apm->cseg, apm->offset, apm->cseg_16, apm->dseg, apm->flags, apm->cseg_len, apm->cseg_16_len, apm->dseg_len);
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break;
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}
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case MULTIBOOT_TAG_TYPE_EFI32:
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{
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multiboot_tag_efi32 *efi32 = (multiboot_tag_efi32 *)Tag;
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fixme("efi32->[pointer: %p, size: %d]", efi32->pointer, efi32->size);
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break;
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}
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case MULTIBOOT_TAG_TYPE_EFI64:
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{
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multiboot_tag_efi64 *efi64 = (multiboot_tag_efi64 *)Tag;
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fixme("efi64->[pointer: %p, size: %d]", efi64->pointer, efi64->size);
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break;
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}
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case MULTIBOOT_TAG_TYPE_SMBIOS:
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{
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multiboot_tag_smbios *smbios = (multiboot_tag_smbios *)Tag;
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fixme("smbios->[major: %d, minor: %d]", smbios->major, smbios->minor);
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break;
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}
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case MULTIBOOT_TAG_TYPE_ACPI_OLD:
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{
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binfo.RSDP = (BootInfo::RSDPInfo *)((multiboot_tag_old_acpi *)Tag)->rsdp;
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break;
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}
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case MULTIBOOT_TAG_TYPE_ACPI_NEW:
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{
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binfo.RSDP = (BootInfo::RSDPInfo *)((multiboot_tag_new_acpi *)Tag)->rsdp;
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break;
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}
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case MULTIBOOT_TAG_TYPE_NETWORK:
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{
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multiboot_tag_network *net = (multiboot_tag_network *)Tag;
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fixme("network->[dhcpack: %p]", net->dhcpack);
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break;
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}
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case MULTIBOOT_TAG_TYPE_EFI_MMAP:
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{
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multiboot_tag_efi_mmap *efi_mmap = (multiboot_tag_efi_mmap *)Tag;
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fixme("efi_mmap->[descr_size: %d, descr_vers: %d, efi_mmap: %p]",
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efi_mmap->descr_size, efi_mmap->descr_vers, efi_mmap->efi_mmap);
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break;
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}
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case MULTIBOOT_TAG_TYPE_EFI_BS:
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{
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fixme("efi_bs->[%p] (unknown structure)", Tag);
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break;
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}
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case MULTIBOOT_TAG_TYPE_EFI32_IH:
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{
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multiboot_tag_efi32_ih *efi32_ih = (multiboot_tag_efi32_ih *)Tag;
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fixme("efi32_ih->[pointer: %p]", efi32_ih->pointer);
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break;
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}
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case MULTIBOOT_TAG_TYPE_EFI64_IH:
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{
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multiboot_tag_efi64_ih *efi64_ih = (multiboot_tag_efi64_ih *)Tag;
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fixme("efi64_ih->[pointer: %p]", efi64_ih->pointer);
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break;
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}
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case MULTIBOOT_TAG_TYPE_LOAD_BASE_ADDR:
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{
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multiboot_tag_load_base_addr *load_base_addr = (multiboot_tag_load_base_addr *)Tag;
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binfo.Kernel.PhysicalBase = (void *)load_base_addr->load_base_addr;
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binfo.Kernel.VirtualBase = (void *)(load_base_addr->load_base_addr + 0xC0000000);
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break;
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}
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}
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Itr = Tag->size;
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if ((Itr % 8) != 0)
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Itr += (8 - Itr % 8);
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}
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tmp = inb(0x61) & 0xFC;
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outb(0x61, tmp);
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int *vm = (int *)0xb8000;
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// "Not supported yet"
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vm[0] = 0x054E;
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vm[1] = 0x056F;
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vm[2] = 0x0574;
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vm[3] = 0x0520;
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vm[4] = 0x0573;
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vm[5] = 0x0575;
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vm[6] = 0x0570;
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vm[7] = 0x0570;
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vm[8] = 0x0572;
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vm[9] = 0x056F;
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vm[10] = 0x0574;
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vm[11] = 0x0520;
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vm[12] = 0x0579;
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vm[13] = 0x0565;
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vm[14] = 0x0574;
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CPU::Stop();
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// Entry(&binfo);
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}
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