Exemplos de grub_cmos_read em C++ (Cpp)

Exemplo n.º 1

Arquivo: mmap.c Projeto: AlfredArouna/grub2

void
grub_machine_mmap_init ()
{
  mem_size = grub_cmos_read (QEMU_CMOS_MEMSIZE_HIGH) << 24 | grub_cmos_read (QEMU_CMOS_MEMSIZE_LOW) << 16;

  /* Don't ask... */
  mem_size += (16 * 1024 * 1024);
}

Exemplo n.º 2

Arquivo: mmap.c Projeto: pendor/grub-zfs

void
grub_machine_mmap_init ()
{
  grub_uint8_t high, low, b, c, d;
  grub_cmos_read (QEMU_CMOS_MEMSIZE_HIGH, &high);
  grub_cmos_read (QEMU_CMOS_MEMSIZE_LOW, &low);
  mem_size = ((grub_uint64_t) high) << 24
    | ((grub_uint64_t) low) << 16;
  if (mem_size > 0)
    {
      /* Don't ask... */
      mem_size += (16 * 1024 * 1024);
    }
  else
    {
      grub_cmos_read (QEMU_CMOS_MEMSIZE2_HIGH, &high);
      grub_cmos_read (QEMU_CMOS_MEMSIZE2_LOW, &low);
      mem_size
	= ((((grub_uint64_t) high) << 18) | (((grub_uint64_t) low) << 10))
	+ 1024 * 1024;
    }

  grub_cmos_read (0x5b, &b);
  grub_cmos_read (0x5c, &c);
  grub_cmos_read (0x5d, &d);
  above_4g = (((grub_uint64_t) b) << 16)
    | (((grub_uint64_t) c) << 24)
    | (((grub_uint64_t) d) << 32);
}

Exemplo n.º 3

Arquivo: mmap.c Projeto: Spacy/grub-fuse

void
grub_machine_mmap_init ()
{
  mem_size = ((grub_uint64_t) grub_cmos_read (QEMU_CMOS_MEMSIZE_HIGH)) << 24
    | ((grub_uint64_t) grub_cmos_read (QEMU_CMOS_MEMSIZE_LOW)) << 16;
  if (mem_size > 0)
    {
      /* Don't ask... */
      mem_size += (16 * 1024 * 1024);
    }
  else
    {
      mem_size
	= ((((grub_uint64_t) grub_cmos_read (QEMU_CMOS_MEMSIZE2_HIGH)) << 18)
	   | ((grub_uint64_t) (grub_cmos_read (QEMU_CMOS_MEMSIZE2_LOW)) << 10))
	+ 1024 * 1024;
    }

  above_4g = (((grub_uint64_t) grub_cmos_read (0x5b)) << 16)
    | (((grub_uint64_t) grub_cmos_read (0x5c)) << 24)
    | (((grub_uint64_t) grub_cmos_read (0x5d)) << 32);
}

Exemplo n.º 4

Arquivo: cmos_datetime.c Projeto: kissthink/os-grub2

grub_err_t
grub_set_datetime (struct grub_datetime *datetime)
{
  int is_bcd, is_12hour;
  grub_uint8_t value, flag;

  flag = grub_cmos_read (GRUB_CMOS_INDEX_STATUS_B);

  is_bcd = ! (flag & GRUB_CMOS_STATUS_B_BINARY);

  value = ((datetime->year >= 2000) ? datetime->year - 2000 :
           datetime->year - 1900);

  if (is_bcd)
    value = grub_num_to_bcd (value);

  grub_cmos_write (GRUB_CMOS_INDEX_YEAR, value);

  value = datetime->month;

  if (is_bcd)
    value = grub_num_to_bcd (value);

  grub_cmos_write (GRUB_CMOS_INDEX_MONTH, value);

  value = datetime->day;

  if (is_bcd)
    value = grub_num_to_bcd (value);

  grub_cmos_write (GRUB_CMOS_INDEX_DAY_OF_MONTH, value);

  value = datetime->hour;

  is_12hour = (! (flag & GRUB_CMOS_STATUS_B_24HOUR));

  if (is_12hour)
    {
      value++;

      if (value > 12)
        value -= 12;
      else
        is_12hour = 0;
    }

  if (is_bcd)
    value = grub_num_to_bcd (value);

  if (is_12hour)
    value |= 0x80;

  grub_cmos_write (GRUB_CMOS_INDEX_HOUR, value);

  value = datetime->minute;

  if (is_bcd)
    value = grub_num_to_bcd (value);

  grub_cmos_write (GRUB_CMOS_INDEX_MINUTE, value);

  value = datetime->second;

  if (is_bcd)
    value = grub_num_to_bcd (value);

  grub_cmos_write (GRUB_CMOS_INDEX_SECOND, value);

  return 0;
}

Exemplo n.º 5

Arquivo: cmos_datetime.c Projeto: kissthink/os-grub2

grub_err_t
grub_get_datetime (struct grub_datetime *datetime)
{
  int is_bcd, is_12hour;
  grub_uint8_t value, flag;

  flag = grub_cmos_read (GRUB_CMOS_INDEX_STATUS_B);

  is_bcd = ! (flag & GRUB_CMOS_STATUS_B_BINARY);

  value = grub_cmos_read (GRUB_CMOS_INDEX_YEAR);
  if (is_bcd)
    value = grub_bcd_to_num (value);

  datetime->year = value;
  datetime->year += (value < 80) ? 2000 : 1900;

  value = grub_cmos_read (GRUB_CMOS_INDEX_MONTH);
  if (is_bcd)
    value = grub_bcd_to_num (value);

  datetime->month = value;

  value = grub_cmos_read (GRUB_CMOS_INDEX_DAY_OF_MONTH);
  if (is_bcd)
    value = grub_bcd_to_num (value);

  datetime->day = value;

  is_12hour = ! (flag & GRUB_CMOS_STATUS_B_24HOUR);

  value = grub_cmos_read (GRUB_CMOS_INDEX_HOUR);
  if (is_12hour)
    {
      is_12hour = (value & 0x80);

      value &= 0x7F;
      value--;
    }

  if (is_bcd)
    value = grub_bcd_to_num (value);

  if (is_12hour)
    value += 12;

  datetime->hour = value;

  value = grub_cmos_read (GRUB_CMOS_INDEX_MINUTE);
  if (is_bcd)
    value = grub_bcd_to_num (value);

  datetime->minute = value;

  value = grub_cmos_read (GRUB_CMOS_INDEX_SECOND);
  if (is_bcd)
    value = grub_bcd_to_num (value);

  datetime->second = value;

  return 0;
}