kmain.c

/************************************************************************
 *   Copyright (c) 2012 Ákos Kovács - Akosix operating system
 *              http://akoskovacs.github.com/Akosix
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ************************************************************************/
#include <console.h>
#include <kernel.h>
#include <ksymbol.h>
#include <memory.h>
#include <multiboot.h>
#include <devices/input/keyboard.h>
#include <string.h>
#include <system.h>
#include <panic.h>

void kmain(struct multiboot_info *mbi, unsigned int magic)
{
   unsigned int mem = mbi->mem_upper + mbi->mem_lower;
   struct multiboot_info *nmbi, *an;

   set_console_attributes(FG_COLOR_WHITE | LIGHT | BG_COLOR_CYAN);
   console_init();

   if (magic != 0x2BADB002) {
       kpanic("Bad bootloader 'magic': %d [%x]", magic, magic);
   }

   kprintf("Booting Akosix...\nAt kmain() %p\n", kmain);
   kprintf("Memory present %dKB (%dMB).\n", mem, mem/1024);
   kprintf("Bootloader: %s\n", (const char *)mbi->boot_loader_name);
   kprintf("Command line: %s\n", (const char *)mbi->cmdline);
   kprintf("End of kernel %p\n", (void*)&__end_data_kernel);
   kprintf("Paging enabled!\n\n");
   kprintf("Multiboot info:\n");

   if (mbi->flags & MB_INFO_BOOTDEV)
       kprintf("\to Has multiboot bootdev\n");
   if (mbi->flags & MB_INFO_CMDLINE)
       kprintf("\to Has multiboot command line\n");
   if (mbi->flags & MB_INFO_ELF_SECT)
       kprintf("\to Has multiboot elf section info\n");
   if (mbi->flags & MB_INFO_DRIVE_INFO)
       kprintf("\to Has multiboot drive info\n");
   if (mbi->flags & MB_INFO_VIDEO)
       kprintf("\to Has multiboot video info\n");
   if (mbi->flags & MB_INFO_MODS)
       kprintf("\to Has multiboot module info\n");
   if (mbi->flags & MB_INFO_MEMORY)
       kprintf("\to Has multiboot memory\n");
   if (mbi->flags & MB_INFO_MEM_MAP)
       kprintf("\to Has multiboot memory-map info:\n");

   memory_init(mbi);
   nmbi = kmalloc(sizeof(struct multiboot_info), M_NORMAL | M_ZEROED);
   void *km = get_symbol("kmalloc");
   kprintf("kmalloc(): %p\n", km);
   an = kmalloc(sizeof(struct multiboot_info), M_NORMAL);
   kfree(nmbi);
   nmbi = kmalloc(sizeof(struct multiboot_info), M_NORMAL | M_ZEROED);
   kprintf("kmalloc() test (must be 0) %d\n", nmbi->mem_upper + nmbi->mem_lower);
   void *sm = kmalloc(220, M_NORMAL);
//   kpanic("Sorry dude! If you wanted some magic, you gonna have a bad time!" , sm);

   /* Test the console and keyboard */
   uint8_t pcd = 0;
   uint8_t scode = 1;
   forever {
       char ch = keyboard_read(&scode);
       if (pcd != scode) {
           // reboot on DEL
           if (scode == 0x53) {
                ps2_kbd_reboot();
           }

           if (ch != '\0') {
               kprintf("%c", ch);
           }
           //kprintf("\nscancode: %p, (character: %c)", scode, ch);

           pcd = scode;
       }
   }
}