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#include <stdint.h>
#include "serial.h"
#include "panic.h"
#include "paging.h"
#include "boot.h"
#include "util.h"
#include "fat.h"
#include "ide.h"
#include "idt.h"
#include "pmap.h"
#include "task.h"
#include "pci.h"
#include "elf.h"
#include "log.h"
#include "vga.h"
void reset_tree();
void tree(struct drive *d);
void _start_user_mode() __attribute__ ((noreturn));
__attribute__ ((noreturn))
void main() {
char nbuf[11];
init_pagemap();
init_paging();
init_tasks();
init_serial();
set_log_mode(LOG_SYSTEM);
vga_blank();
logsz("Portland v0.0.11\n\n");
//list vesa modes?
pci_init();
u16_dec(n_pci_devices, nbuf);
logsz(nbuf);
logsz(" PCI device(s) found:\n");
for (uint16_t n = 0; n < n_pci_devices; ++n) {
struct pci_device *pd = nth_pci_device(n);
u16_hex(pd->number, nbuf);
logsz(" ");
logsz(nbuf);
logsz(": ");
u16_hex(pd->id_vendor, nbuf);
nbuf[4] = '.';
u16_hex(pd->id_device, nbuf + 5);
logsz(nbuf);
u8_hex(pd->class, nbuf);
nbuf[2] = '.';
u8_hex(pd->subclass, nbuf + 3);
nbuf[5] = '.';
u8_hex(pd->iface, nbuf + 6);
logsz(" (");
logsz(nbuf);
logsz(")\n");
}
logch('\n');
init_fat();
//other fs drivers
init_drives();
init_ide();
//other drive drivers
u8_dec(n_drives, nbuf);
logsz(nbuf);
logsz(" drive(s) found:\n");
for (uint8_t n = 0; n < n_drives; ++n) {
struct drive *d = drives + n;
u8_dec(n, nbuf);
logsz(" sd");
logsz(nbuf);
logsz(" (");
logsz(d->drive_type);
logsz(", ");
u32_dec(d->n_sectors / 2, nbuf);
logsz(nbuf);
if (d->n_sectors % 2)
logsz(".5");
logsz("k): ");
logsz(d->fs_type);
uint32_t free_sectors = d->get_free_sectors(d);
if (free_sectors != -1) {
u32_dec(free_sectors / 2, nbuf);
logsz(", ");
logsz(nbuf);
if (free_sectors % 2)
logsz(".5");
logsz("k free");
}
logsz(".\n");
}
logch('\n');
for (uint8_t n = 0; n < n_drives; ++n) {
if (drives[n].get_free_sectors(drives + n) == -1)
continue;
u32_dec(n, nbuf);
logsz("sd");
logsz(nbuf);
logsz(" tree:\n");
reset_tree();
tree(drives + n);
logch('\n');
}
if (BOOT_INFO->support_flags & BIS_PAE)
logsz("Processor supports PAE (but Portland OS does not yet).\n");
else
logsz("Processor does not support PAE.\n");
logsz("Kernel dynamic area size: ");
u32_dec(max_kernel_pages * 4, nbuf);
logsz(nbuf);
logsz("k\nUserspace area size: ");
u32_dec(max_user_pages * 4, nbuf);
logsz(nbuf);
logsz("k\n\n");
if (!try_elf_run(drives, "BIN/INIT.ELF"))
panic("Failed to load init program.");
init_idt();
logsz("Switching to init task.\n");
set_log_mode(LOG_USER);
_start_user_mode();
}
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