Пример #1
0
int
main(uint32_t magic, struct mbi *mbi)
{
  if (magic == MBI_MAGIC) {
    if ((mbi->flags & MBI_FLAG_CMDLINE) != 0)
      parse_cmdline((const char *)mbi->cmdline);
  } else {
    printf("Not loaded by Multiboot-compliant loader. Bye.\n");
    return 1;
  }

  printf("\nBender %s\n", version_str);
  printf("Blame Julian Stecklina <*****@*****.**> for bugs.\n\n");

  printf("Looking for serial controllers on the PCI bus...\n");

  struct pci_device serial_ctrl;

  printf("Promisc is %s.\n", be_promisc ? "on" : "off");
  if (pci_find_device_by_class(PCI_CLASS_SIMPLE_COMM,
			       be_promisc ? PCI_SUBCLASS_ANY : PCI_SUBCLASS_SERIAL_CTRL,
			       &serial_ctrl)) {
    printf("  found at %x.\n", serial_ctrl.cfg_address);
  } else {
    printf("  none found.\n");
    goto boot_next;
  }

  uint16_t iobase = 0;
  for (unsigned bar_no = 0; bar_no < 6; bar_no++) {
    uint32_t bar = pci_cfg_read_uint32(&serial_ctrl, PCI_CFG_BAR0 + 4*bar_no);
    if ((bar & PCI_BAR_TYPE_MASK) == PCI_BAR_TYPE_IO) {
      iobase = bar & PCI_BAR_IO_MASK;
      break;
    }
  }

  iobase = apply_quirks(&serial_ctrl, iobase);

  uint16_t *com0_port      = (uint16_t *)(get_bios_data_area());
  uint16_t *equipment_word = &get_bios_data_area()->equipment;

  if (iobase != 0) {
    printf("Patching BDA with I/O port 0x%x.\n", iobase);
    *com0_port      = iobase;
    *equipment_word = (*equipment_word & ~(0xF << 9)) | (1 << 9); /* One COM port available */
  } else {
    printf("I/O ports for controller not found.\n");
  }

 boot_next:

  if (serial_ports(get_bios_data_area()))
    serial_init();

  printf("Bender: Hello World.\n");

  return start_module(mbi, false, phys_max_relocate);
}
Пример #2
0
BROKER_RESULT Broker_AddModule(BROKER_HANDLE broker, const MODULE* module)
{
    BROKER_RESULT result;

    /*Codes_SRS_BROKER_99_013: [If `broker` or `module` is NULL the function shall return BROKER_INVALIDARG.]*/
    if (broker == NULL || module == NULL)
    {
        result = BROKER_INVALIDARG;
        LogError("invalid parameter (NULL).");
    }
    /*Codes_SRS_BROKER_99_014: [If `module_handle` or `module_apis` are `NULL` the function shall return `BROKER_INVALIDARG`.]*/
    else if (module->module_apis == NULL || module->module_handle == NULL)
    {
        result = BROKER_INVALIDARG;
        LogError("invalid parameter (NULL).");
    }
    else
    {
        BROKER_MODULEINFO* module_info = (BROKER_MODULEINFO*)malloc(sizeof(BROKER_MODULEINFO));
        if (module_info == NULL)
        {
            LogError("Allocate module info failed");
            result = BROKER_ERROR;
        }
        else
        {
            if (init_module(module_info, module) != BROKER_OK)
            {
                /*Codes_SRS_BROKER_13_047: [This function shall return BROKER_ERROR if an underlying API call to the platform causes an error or BROKER_OK otherwise.]*/
                LogError("start_module failed");
                free(module_info->module);
                free(module_info);
                result = BROKER_ERROR;
            }
            else
            {
                /*Codes_SRS_BROKER_13_039: [This function shall acquire the lock on BROKER_HANDLE_DATA::modules_lock.]*/
                BROKER_HANDLE_DATA* broker_data = (BROKER_HANDLE_DATA*)broker;
                if (Lock(broker_data->modules_lock) != LOCK_OK)
                {
                    /*Codes_SRS_BROKER_13_047: [This function shall return BROKER_ERROR if an underlying API call to the platform causes an error or BROKER_OK otherwise.]*/
                    LogError("Lock on broker_data->modules_lock failed");
                    deinit_module(module_info);
                    free(module_info);
                    result = BROKER_ERROR;
                }
                else
                {
                    /*Codes_SRS_BROKER_13_045: [Broker_AddModule shall append the new instance of BROKER_MODULEINFO to BROKER_HANDLE_DATA::modules.]*/
                    LIST_ITEM_HANDLE moduleListItem = singlylinkedlist_add(broker_data->modules, module_info);
                    if (moduleListItem == NULL)
                    {
                        /*Codes_SRS_BROKER_13_047: [This function shall return BROKER_ERROR if an underlying API call to the platform causes an error or BROKER_OK otherwise.]*/
                        LogError("singlylinkedlist_add failed");
                        deinit_module(module_info);
                        free(module_info);
                        result = BROKER_ERROR;
                    }
                    else
                    {
                        if (start_module(module_info, broker_data->url) != BROKER_OK)
                        {
                            LogError("start_module failed");
                            deinit_module(module_info);
                            singlylinkedlist_remove(broker_data->modules, moduleListItem);
                            free(module_info);
                            result = BROKER_ERROR;
                        }
                        else
                        {
                            /*Codes_SRS_BROKER_13_047: [This function shall return BROKER_ERROR if an underlying API call to the platform causes an error or BROKER_OK otherwise.]*/
                            result = BROKER_OK;
                        }
                    }

                    /*Codes_SRS_BROKER_13_046: [This function shall release the lock on BROKER_HANDLE_DATA::modules_lock.]*/
                    Unlock(broker_data->modules_lock);
                }
            }

        }
    }

    return result;
}