Beispiel #1
0
static void
hw_ide_init_address(device *me)
{
  hw_ide_device *ide = device_data(me);
  int controller;
  int drive;
 
  /* zero some things */
  for (controller = 0; controller < nr_ide_controllers; controller++) {
    memset(&ide->controller[controller], 0, sizeof(ide_controller));
    for (drive = 0; drive < nr_ide_drives_per_controller; drive++) {
      ide->controller[controller].drive[drive].nr = drive;
    }
    ide->controller[controller].me = me;
    if (device_find_property(me, "ready-delay") != NULL)
      ide->controller[controller].ready_delay =
	device_find_integer_property(me, "ready-delay");
  }

  /* attach this device to its parent */
  generic_device_init_address(me);

  /* determine our own address map */
  build_address_decoder(me, &ide->decoder);

}
Beispiel #2
0
static void
hw_nvram_init_address(device *me)
{
  hw_nvram_device *nvram = (hw_nvram_device*)device_data(me);
  
  /* use the generic init code to attach this device to its parent bus */
  generic_device_init_address(me);

  /* find the first non zero reg property and use that as the device
     size */
  if (nvram->sizeof_memory == 0) {
    reg_property_spec reg;
    int reg_nr;
    for (reg_nr = 0;
	 device_find_reg_array_property(me, "reg", reg_nr, &reg);
	 reg_nr++) {
      unsigned attach_size;
      if (device_size_to_attach_size(device_parent(me),
				     &reg.size, &attach_size,
				     me)) {
	nvram->sizeof_memory = attach_size;
	break;
      }
    }
    if (nvram->sizeof_memory == 0)
      device_error(me, "reg property must contain a non-zero phys-addr:size tupple");
    if (nvram->sizeof_memory < 8)
      device_error(me, "NVRAM must be at least 8 bytes in size");
  }

  /* initialize the hw_nvram */
  if (nvram->memory == NULL) {
    nvram->memory = zalloc(nvram->sizeof_memory);
  }
  else
    memset(nvram->memory, 0, nvram->sizeof_memory);
  
  if (device_find_property(me, "timezone") == NULL)
    nvram->timezone = 0;
  else
    nvram->timezone = device_find_integer_property(me, "timezone");
  
  nvram->addr_year = nvram->sizeof_memory - 1;
  nvram->addr_month = nvram->sizeof_memory - 2;
  nvram->addr_date = nvram->sizeof_memory - 3;
  nvram->addr_day = nvram->sizeof_memory - 4;
  nvram->addr_hour = nvram->sizeof_memory - 5;
  nvram->addr_minutes = nvram->sizeof_memory - 6;
  nvram->addr_seconds = nvram->sizeof_memory - 7;
  nvram->addr_control = nvram->sizeof_memory - 8;
  
}