kernel/mbootinfo.c

   1 /*
   2         mbootinfo.c
   3         MultiBoot Info
   4         (C) 2014-2015 VOSystems.
   5 */
   6
   7 #include<Diverge/multiboot.h>
   8 #include<Diverge/diverge.h>
   9
  10 struct pc_info pc;
  11
  12 void init_MultiBoot(unsigned long magic, unsigned long addr)
  13 {
  14         multiboot_info_t *mbi = (multiboot_info_t *) addr;
  15
  16         pc.cmd=mbi->cmdline;
  17         MB_memory(mbi, magic);
  18         MB_apm(mbi);
  19 }
  20
  21 void MB_memory(multiboot_info_t* mbi,unsigned long magic)
  22 {
  23         printTASK("Loading Memory Info");
  24         if(magic!=MULTIBOOT_BOOTLOADER_MAGIC){
  25                 printFAIL("Loading Memory Info");
  26
  27         }else{
  28                 char meminfo[100];
  29                 printOK("Loading Memory Info");
  30                 pc.mem.low_size=mbi->mem_lower;
  31                 pc.mem.up_size=mbi->mem_upper;
  32                 pc.mem.size=(pc.mem.low_size + pc.mem.up_size)/1024;
  33                 ksprintf(meminfo,"Total Memory = %d MiB",pc.mem.size);
  34                 printINFO(meminfo);
  35         }
  36 }
  37
  38 void MB_apm(multiboot_info_t* mbi)
  39 {
  40         printTASK("Loading APM Info");
  41         struct apm_info* apm=(struct apm_info*)mbi->apm_table;
  42         pc.apm.version          = apm->version;
  43         pc.apm.cs32                     = apm->cs32;
  44         pc.apm.offset           = apm->offset;
  45         pc.apm.cs16                     = apm->cs16;
  46         pc.apm.ds16                     = apm->ds16;
  47         pc.apm.flag                     = apm->flag;
  48         pc.apm.cs32_size        = apm->cs32_size;
  49         pc.apm.cs16_size        = apm->cs16_size;
  50         pc.apm.ds_size          = apm->ds_size;
  51         printOK("Loading APM Info");
  52 }