Ejemplos de grub_vbe_bios_get_pm_interface en C++ (Cpp)

Ejemplo n.º 1

Archivo: multiboot_mbi2.c Proyecto: cuidi/grub

static void
fill_vbe_tag (struct multiboot_tag_vbe *tag)
{
  grub_vbe_status_t status;
  void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;

  tag->type = MULTIBOOT_TAG_TYPE_VBE;
  tag->size = 0;
    
  status = grub_vbe_bios_get_controller_info (scratch);
  if (status != GRUB_VBE_STATUS_OK)
    return;
  
  grub_memcpy (&tag->vbe_control_info, scratch,
	       sizeof (struct grub_vbe_info_block));
  
  status = grub_vbe_bios_get_mode (scratch);
  tag->vbe_mode = *(grub_uint32_t *) scratch;
  if (status != GRUB_VBE_STATUS_OK)
    return;

  /* get_mode_info isn't available for mode 3.  */
  if (tag->vbe_mode == 3)
    {
      struct grub_vbe_mode_info_block *mode_info = (void *) &tag->vbe_mode_info;
      grub_memset (mode_info, 0,
		   sizeof (struct grub_vbe_mode_info_block));
      mode_info->memory_model = GRUB_VBE_MEMORY_MODEL_TEXT;
      mode_info->x_resolution = 80;
      mode_info->y_resolution = 25;
    }
  else
    {
      status = grub_vbe_bios_get_mode_info (tag->vbe_mode, scratch);
      if (status != GRUB_VBE_STATUS_OK)
	return;
      grub_memcpy (&tag->vbe_mode_info, scratch,
		   sizeof (struct grub_vbe_mode_info_block));
    }      
  grub_vbe_bios_get_pm_interface (&tag->vbe_interface_seg,
				  &tag->vbe_interface_off,
				  &tag->vbe_interface_len);

  tag->size = sizeof (*tag);
}

Ejemplo n.º 2

Archivo: multiboot_mbi.c Proyecto: ChinaFengliang/grub

static grub_err_t
fill_vbe_info (struct multiboot_info *mbi, grub_uint8_t *ptrorig,
	       grub_uint32_t ptrdest, int fill_generic)
{
  grub_uint32_t vbe_mode;
  struct grub_vbe_mode_info_block *mode_info;
#if GRUB_MACHINE_HAS_VBE
  grub_vbe_status_t status;
  void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
    
  status = grub_vbe_bios_get_controller_info (scratch);
  if (status != GRUB_VBE_STATUS_OK)
    return grub_error (GRUB_ERR_IO, "Can't get controller info.");
  
  mbi->vbe_control_info = ptrdest;
  grub_memcpy (ptrorig, scratch, sizeof (struct grub_vbe_info_block));
  ptrorig += sizeof (struct grub_vbe_info_block);
  ptrdest += sizeof (struct grub_vbe_info_block);
#else
  mbi->vbe_control_info = 0;
#endif

#if GRUB_MACHINE_HAS_VBE  
  status = grub_vbe_bios_get_mode (scratch);
  vbe_mode = *(grub_uint32_t *) scratch;
  if (status != GRUB_VBE_STATUS_OK)
    return grub_error (GRUB_ERR_IO, "can't get VBE mode");
#else
  vbe_mode = 3;
#endif
  mbi->vbe_mode = vbe_mode;

  mode_info = (struct grub_vbe_mode_info_block *) ptrorig;
  mbi->vbe_mode_info = ptrdest;
  /* get_mode_info isn't available for mode 3.  */
  if (vbe_mode == 3)
    {
      grub_memset (mode_info, 0, sizeof (struct grub_vbe_mode_info_block));
      mode_info->memory_model = GRUB_VBE_MEMORY_MODEL_TEXT;
      mode_info->x_resolution = 80;
      mode_info->y_resolution = 25;
    }
  else
    {
#if GRUB_MACHINE_HAS_VBE  
      status = grub_vbe_bios_get_mode_info (vbe_mode, scratch);
      if (status != GRUB_VBE_STATUS_OK)
	return grub_error (GRUB_ERR_IO, "can't get mode info");
      grub_memcpy (mode_info, scratch,
		   sizeof (struct grub_vbe_mode_info_block));
#endif
    }
  ptrorig += sizeof (struct grub_vbe_mode_info_block);
  ptrdest += sizeof (struct grub_vbe_mode_info_block);

#if GRUB_MACHINE_HAS_VBE        
  grub_vbe_bios_get_pm_interface (&mbi->vbe_interface_seg,
				  &mbi->vbe_interface_off,
				  &mbi->vbe_interface_len);
#endif
  
  mbi->flags |= MULTIBOOT_INFO_VBE_INFO;

  if (fill_generic && mode_info->memory_model == GRUB_VBE_MEMORY_MODEL_TEXT)
    {
      mbi->framebuffer_addr = 0xb8000;

      mbi->framebuffer_pitch = 2 * mode_info->x_resolution;	
      mbi->framebuffer_width = mode_info->x_resolution;
      mbi->framebuffer_height = mode_info->y_resolution;

      mbi->framebuffer_bpp = 16;

      mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT;

      mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
    }

  return GRUB_ERR_NONE;
}