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#include <stdint.h>
#include "paging.h"
#include "serial.h"
#include "window.h"
#include "panic.h"
#include "boot.h"
#include "cmos.h"
#include "pmap.h"
#include "task.h"
#include "util.h"
#include "elf.h"
#include "fat.h"
#include "ide.h"
#include "idt.h"
#include "kbd.h"
#include "log.h"
#include "pci.h"
#include "vbe.h"
void _start_user_mode() __attribute__ ((noreturn));
__attribute__ ((noreturn))
void main() {
init_pagemap();
init_paging();
init_tasks();
init_serial();
pci_init();
init_fat();
//other fs drivers
init_drives();
init_ide();
//other drive drivers
init_log();
init_kbd();
init_idt();
init_win();
logf(LOG_INFO, "Kernel initialization done.");
logf(LOG_INFO, "Available kernel memory: %dk", kernel_pages_left * 4);
logf(LOG_INFO, "Available user memory: %dk", user_pages_left * 4);
logf(LOG_INFO, "");
logf(LOG_INFO, "PCI devices:");
for (uint16_t i = 0; i < n_pci_devices; ++i) {
const struct pci_device *dev = nth_pci_device(i);
logf(LOG_INFO, " %hw:%hw (%hb:%hb)", dev->id_vendor, dev->id_device, dev->class, dev->subclass);
}
logf(LOG_INFO, "");
logf(LOG_INFO, "Drives:");
for (uint8_t i = 0; i < n_drives; ++i) {
const struct drive *d = &drives[i];
const uint32_t free = d->get_free_sectors(d);
logf(LOG_INFO, " %s: %d%sk, %s (%d%sk free)", d->drive_type, d->n_sectors / 2, d->n_sectors % 2 ? ".5" : "", d->fs_type, free / 2, free % 2 ? ".5" : "");
}
logf(LOG_INFO, "");
logf(LOG_INFO, "VBE info:");
logf(LOG_INFO, " Implemention: %s", RM_PTR(char, VBE_INFO->oem_name));
logf(LOG_INFO, " Video memory: %dk", VBE_INFO->total_memory * 64);
logf(LOG_INFO, " Standard: %d.%d.%d", VBE_INFO->major_version, VBE_INFO->minor_version, VBE_INFO->version_rev);
logf(LOG_INFO, " Vendor: %s", RM_PTR(char, VBE_INFO->vendor_name));
logf(LOG_INFO, " Product: %s", RM_PTR(char, VBE_INFO->product_name));
logf(LOG_INFO, " Version: %s", RM_PTR(char, VBE_INFO->product_rev_name));
logf(LOG_INFO, "");
#define MASK(offset, length) ((~((1 << offset) - 1)) - (offset + length == 32 ? 0 : (~((1 << (offset + length)) - 1))))
logf(LOG_INFO, "Active video mode:");
logf(LOG_INFO, " Resolution: %dx%dx%d", VBE_MODE_INFO->width, VBE_MODE_INFO->height, VBE_MODE_INFO->bpp);
logf(LOG_INFO, " Red mask: 0x%h", MASK(VBE_MODE_INFO->red_off, VBE_MODE_INFO->red_len));
logf(LOG_INFO, " Green mask: 0x%h", MASK(VBE_MODE_INFO->green_off, VBE_MODE_INFO->green_len));
logf(LOG_INFO, " Blue mask: 0x%h", MASK(VBE_MODE_INFO->blue_off, VBE_MODE_INFO->blue_len));
logf(LOG_INFO, " Alpha mask: 0x%h", MASK(VBE_MODE_INFO->alpha_off, VBE_MODE_INFO->alpha_len));
logf(LOG_INFO, " Framebuffer address: 0x%h", VBE_MODE_INFO->frame_buf);
logf(LOG_INFO, "");
logf(LOG_INFO, "Loading init program.");
if (!try_elf_run(drives, "bin/init", "", 0))
PANIC("Failed to load init program.");
logf(LOG_INFO, "Switching to init task.");
_start_user_mode();
}
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