feat: cleanup init code, small other refactors

kernel/kernel.c

@@ -4,18 +4,12 @@
 
 #define DEBUG_INIT
 
-#include <myke/acpi/acpi.h>
 #include <myke/command.h>
-#include <myke/cpu/cpuidx.h>
 #include <myke/cpu/gdt.h>
 #include <myke/cpu/isr.h>
 #include <myke/cpu/pit.h>
 #include <myke/debug/debug.h>
-#include <myke/drivers/keyboard.h>
 #include <myke/drivers/pci/pci.h>
-#include <myke/drivers/serial.h>
-#include <myke/drivers/vgascreen.h>
-#include <myke/vfs/blockdev.h>
 #include <myke/libk/kprint.h>
 #include <myke/libk/libk.h>
 #include <myke/libk/syscall.h>
@@ -44,11 +38,8 @@ void init_pci_system() {
 void att_noreturn att_used kmain(multiboot_info_t *multiboot_info, uint32_t mb_name) {
     // early init
     isr_install();
-    vga_clear_screen();
-    vga_clear_screen(' ', VGA_WHITE | (VGA_GRAY << VGA_SHIFT_BG));
-    kprint_register(vga_kprint);
-    serial_init();
-    kprint_register(serial_kprint);
+    // initialize early modules (kprint etc.)
+    init_execute_all(INIT_STAGE_EARLY_BOOT_0);
 
     // parse multiboot
     if (mb_name != MULTIBOOT_BOOTLOADER_MAGIC) {
@@ -59,41 +50,33 @@ void att_noreturn att_used kmain(multiboot_info_t *multiboot_info, uint32_t mb_n
 
     // initialize memory management
     init_mmap(multiboot_info);
+    // safe multiboot info for later use
+    debug_store_info(multiboot_info);
 
     gdt_init();
 
     // initialize kprint functionality
     kprint_init();
-
-    // todo earlier in boot
-    acpi_parse();
-    acpi_init();
-
-    debug_store_info(multiboot_info);
-
-    // identify cpu
-    cpuidx_print_info();
+    // initialize early driver code (ACPI, etc.)
+    init_execute_all(INIT_STAGE_EARLY_BOOT_1);
 
     // enable interrupts
     __asm__ __volatile__("sti");
     // start the timer
-    pit_init(1000);
-    // initialize devices
-    init_keyboard();
+    pit_int_frequency(1000);
+
+    // initialize drivers that are not discovered in any other way
+    init_execute_all(INIT_STAGE_LATE_BOOT);
+
+    // init PCI
     init_pci_system();
 
     printf("Booted successfully v%d.%d.%d\n", version_major, version_minor, version_patch);
 
-    // initializing modules
-    init_execute_all();
-
     // initialize tasking
     task_init();
-    kprint_start_task();
-    block_dev_start_task();
-#ifdef K_SHELL
-    task_spawn(main_loop, NULL, "main");
-#endif
+    // let other system provide tasks (command, kprint, blockdev)
+    init_execute_all(INIT_STAGE_PRE_TASKING);
     // switch to tasking
     syscall_start_scheduler();
 }