C++ (Cpp) grub_pci_write_word Examples

Example #1

File: init.c Project: kphillisjr/burg

static void
init_pci (void)
{
  auto int NESTED_FUNC_ATTR set_card (grub_pci_device_t dev, grub_pci_id_t pciid);
  int NESTED_FUNC_ATTR set_card (grub_pci_device_t dev, grub_pci_id_t pciid)
  {
    grub_pci_address_t addr;
    /* FIXME: autoscan for BARs and devices.  */
    switch (pciid)
      {
      case GRUB_LOONGSON_OHCI_PCIID:
	addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
	grub_pci_write (addr, 0x5025000);
	addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
	grub_pci_write_word (addr, GRUB_PCI_COMMAND_SERR_ENABLE
			     | GRUB_PCI_COMMAND_PARITY_ERROR
			     | GRUB_PCI_COMMAND_BUS_MASTER
			     | GRUB_PCI_COMMAND_MEM_ENABLED);

	addr = grub_pci_make_address (dev, GRUB_PCI_REG_STATUS);
	grub_pci_write_word (addr, 0x0200 | GRUB_PCI_STATUS_CAPABILITIES);
	break;
      case GRUB_LOONGSON_EHCI_PCIID:
	addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
	grub_pci_write (addr, 0x5026000);
	addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
	grub_pci_write_word (addr, GRUB_PCI_COMMAND_SERR_ENABLE
			     | GRUB_PCI_COMMAND_PARITY_ERROR
			     | GRUB_PCI_COMMAND_BUS_MASTER
			     | GRUB_PCI_COMMAND_MEM_ENABLED);

	addr = grub_pci_make_address (dev, GRUB_PCI_REG_STATUS);
	grub_pci_write_word (addr, (1 << GRUB_PCI_STATUS_DEVSEL_TIMING_SHIFT)
			     | GRUB_PCI_STATUS_CAPABILITIES);
	break;
      }
    return 0;
  }

Example #2

File: setpci.c Project: Spacy/grub-fuse

static int NESTED_FUNC_ATTR
grub_setpci_iter (grub_pci_device_t dev, grub_pci_id_t pciid)
{
  grub_uint32_t regval = 0;
  grub_pci_address_t addr;

  if ((pciid & pciid_check_mask) != pciid_check_value)
    return 0;

  if (check_bus && grub_pci_get_bus (dev) != bus)
    return 0;

  if (check_device && grub_pci_get_device (dev) != device)
    return 0;

  if (check_function && grub_pci_get_function (dev) != function)
    return 0;

  addr = grub_pci_make_address (dev, regaddr);

  switch (regsize)
    {
    case 1:
      regval = grub_pci_read_byte (addr);
      break;

    case 2:
      regval = grub_pci_read_word (addr);
      break;

    case 4:
      regval = grub_pci_read (addr);
      break;
    }

  if (varname)
    {
      char buf[sizeof ("XXXXXXXX")];
      grub_snprintf (buf, sizeof (buf), "%x", regval);
      grub_env_set (varname, buf);
      return 1;
    }

  if (!write_mask)
    {
      grub_printf ("Register %x of %d:%d.%d is %x\n", regaddr,
		   grub_pci_get_bus (dev),
		   grub_pci_get_device (dev),
		   grub_pci_get_function (dev),
		   regval);
      return 0;
    }

  regval = (regval & ~write_mask) | regwrite;

  switch (regsize)
    {
    case 1:
      grub_pci_write_byte (addr, regval);
      break;

    case 2:
      grub_pci_write_word (addr, regval);
      break;

    case 4:
      grub_pci_write (addr, regval);
      break;
    }

  return 0;
}