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//! Boot sequence
const afs = @import("../../fs/afs/afs.zig");
const ahci = @import("../../drivers/ahci/ahci.zig");
const boot_limits = @import("../../common/limits/boot.zig");
const colors = @import("../../common/constants/colors.zig");
const cpu = @import("../../asm/cpu.zig");
const crimson = @import("../../crimson/crimson.zig");
const font = @import("../../graphics/fonts/psf.zig");
const gdt = @import("../gdt/gdt.zig");
const gpt = @import("../../fs/gpt/gpt.zig");
const heap = @import("../../memory/heap.zig");
const hikari = @import("../../hikari/loader.zig");
const idt = @import("../../interrupts/idt.zig");
const invocations = @import("../../invocations/handler.zig");
const kata = @import("../../kata/kata.zig");
const keyboard = @import("../../drivers/keyboard/keyboard.zig");
const message = @import("message.zig");
const multiboot = @import("../multiboot/multiboot.zig");
const pci = @import("../../drivers/pci/pci.zig");
const pit = @import("../../drivers/pit/pit.zig");
const pmm = @import("../../memory/pmm.zig");
const sensei = @import("../../kata/sensei/sensei.zig");
const serial = @import("../../drivers/serial/serial.zig");
const memory_const = @import("../../common/constants/memory.zig");
const terminal = @import("../../graphics/terminal/terminal.zig");
const tss = @import("../tss/tss.zig");
var filesystem: ?*afs.AFS(ahci.BlockDevice) = null;
pub fn get_filesystem() *afs.AFS(ahci.BlockDevice) {
return filesystem.?;
}
pub fn run(multiboot_addr: u64) void {
const fb_info = multiboot.parse_framebuffer(multiboot_addr);
step("Parsing memory map");
const memory_map = multiboot.parse_memory_map(multiboot_addr);
ok();
step("Initializing physical memory");
pmm.init(memory_const.MIRAI_END(), memory_map);
ok();
step("Initializing heap");
heap.init();
ok();
step("Initializing kata management");
kata.init();
ok();
step("Setting up TSS");
tss.init();
ok();
step("Setting up GDT");
gdt.init();
ok();
step("Setting up IDT");
idt.init();
ok();
step("Setting up PIT");
pit.init();
ok();
step("Scanning PCI bus");
pci.scan_bus();
ok();
step("Detecting storage controller");
ahci.find_and_init() catch |err| {
fail();
print_error(err);
halt();
};
ok();
step("Mounting AFS");
var device = ahci.BlockDevice.init();
const partition = gpt.find_afs_partition(&device) orelse {
fail();
message.print("AFS partition not found\n");
halt();
};
var fs = afs.AFS(ahci.BlockDevice).init(&device, partition.start_lba) catch |err| {
fail();
print_error(err);
halt();
};
filesystem = &fs;
ok();
step("Initializing invocations");
invocations.init(&fs);
ok();
step("Loading font");
var font_buffer: [boot_limits.FONT_BUFFER_SIZE]u8 = undefined;
const bytes_read = fs.view_unit_at("/system/fonts/akiba.psf", &font_buffer) catch |err| {
fail();
print_error(err);
halt();
};
font.init(font_buffer[0..bytes_read]) catch |err| {
fail();
print_error(err);
halt();
};
ok();
if (fb_info) |fb| {
step("Initializing framebuffer");
terminal.init(fb);
crimson.init(fb);
multiboot.init_framebuffer(fb);
message.set_terminal(terminal.print, terminal.print_color);
ok();
}
step("Initializing keyboard");
keyboard.init();
ok();
message.print_color("Boot complete!\n", colors.GREEN);
step("Loading Pulse");
_ = hikari.init(&fs) catch |err| {
serial.printf("Failed to load Pulse: {s}\n", .{@errorName(err)});
crimson.collapse("Akiba's Pulse is missing. System is dying.", null);
};
ok();
if (message.is_ready()) {
terminal.clear_screen();
message.print_color("Akiba OS\n", colors.AKIBA_PINK);
message.print("Drifting from abyss towards the infinity!\n\n");
}
sensei.schedule();
serial.print("ERROR: Returned from schedule!\n");
halt();
}
fn step(name: []const u8) void {
message.print(name);
message.print("... ");
}
fn ok() void {
message.print_color("[ OK ]\n", colors.GREEN);
}
fn fail() void {
message.print_color("[ FAIL ]\n", colors.RED);
}
fn print_error(err: anyerror) void {
message.print("ERROR: ");
message.print(@errorName(err));
message.print("\n");
}
fn halt() noreturn {
while (true) {
cpu.halt_processor();
}
}
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