C++ ieee80211_alloc_hw函数代码示例

/**
 * determines if a device is a WL device, and if so, attaches it.
 *
 * This function determines if a device pointed to by pdev is a WL device,
 * and if so, performs a brcms_attach() on it.
 *
 * Perimeter lock is initialized in the course of this function.
 */
static int __devinit
brcms_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	int rc;
	struct brcms_info *wl;
	struct ieee80211_hw *hw;
	u32 val;

	dev_info(&pdev->dev, "bus %d slot %d func %d irq %d\n",
	       pdev->bus->number, PCI_SLOT(pdev->devfn),
	       PCI_FUNC(pdev->devfn), pdev->irq);

	if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
	    ((pdev->device != 0x0576) &&
	     ((pdev->device & 0xff00) != 0x4300) &&
	     ((pdev->device & 0xff00) != 0x4700) &&
	     ((pdev->device < 43000) || (pdev->device > 43999))))
		return -ENODEV;

	rc = pci_enable_device(pdev);
	if (rc) {
		pr_err("%s: Cannot enable device %d-%d_%d\n",
		       __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
		       PCI_FUNC(pdev->devfn));
		return -ENODEV;
	}
	pci_set_master(pdev);

	pci_read_config_dword(pdev, 0x40, &val);
	if ((val & 0x0000ff00) != 0)
		pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);

	hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
	if (!hw) {
		pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
		return -ENOMEM;
	}

	SET_IEEE80211_DEV(hw, &pdev->dev);

	pci_set_drvdata(pdev, hw);

	memset(hw->priv, 0, sizeof(*wl));

	wl = brcms_attach(pdev->vendor, pdev->device,
			  pci_resource_start(pdev, 0), pdev,
			  pdev->irq);

	if (!wl) {
		pr_err("%s: %s: brcms_attach failed!\n", KBUILD_MODNAME,
		       __func__);
		return -ENODEV;
	}
	return 0;
}

static int ieee80211p_driver_start(struct ieee80211p_priv *priv) {

	/* Return value */	
	int ret = 0;

	/* Configuration and hardware information for an 802.11 PHY */
	struct ieee80211_hw *hw = NULL;
	
	/*******************************************
	 * Allocating hw (mac80211 main structure) * 
	 * and priv (driver private data)          *
	 *******************************************/

	hw = ieee80211_alloc_hw(sizeof(struct ieee80211p_priv),&ieee80211p_driver_ops);

	if (hw == NULL) {
		ret = -1;
		printk(KERN_ERR "ieee80211p_driver_start: can't alloc ieee80211 hw\n");
		goto error;
	}	

	priv->hw = hw;
	hw->priv = priv;

	/*************************************************
	 * Initializing hardware and driver private data *
	 *************************************************/

	ret = ieee80211p_priv_init(priv);

	if (ret == -1) {
		printk(KERN_ERR "ieee80211p_driver_start: can't init priv data hw\n");		
		goto error;
	}

	/******************
	 * Registering hw *
	 *****************/

	ret = ieee80211_register_hw(hw);

	if (ret) {
		printk(KERN_ERR "ieee80211p_driver_start: can't reg ieee80211 hw\n");
		goto error;
	}

	return 0;
	
error:
	return ret;

} /* ieee80211p_driver_start */

struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
{
	struct zd_mac *mac;
	struct ieee80211_hw *hw;

	hw = ieee80211_alloc_hw(sizeof(struct zd_mac), &zd_ops);
	if (!hw) {
		dev_dbg_f(&intf->dev, "out of memory\n");
		return NULL;
	}

	mac = zd_hw_mac(hw);

	memset(mac, 0, sizeof(*mac));
	spin_lock_init(&mac->lock);
	mac->hw = hw;

	mac->type = IEEE80211_IF_TYPE_INVALID;

	memcpy(mac->channels, zd_channels, sizeof(zd_channels));
	memcpy(mac->rates, zd_rates, sizeof(zd_rates));
	mac->band.n_bitrates = ARRAY_SIZE(zd_rates);
	mac->band.bitrates = mac->rates;
	mac->band.n_channels = ARRAY_SIZE(zd_channels);
	mac->band.channels = mac->channels;

	hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &mac->band;

	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
		    IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
	hw->max_rssi = 100;
	hw->max_signal = 100;

	hw->queues = 1;
	hw->extra_tx_headroom = sizeof(struct zd_ctrlset);

	skb_queue_head_init(&mac->ack_wait_queue);

	zd_chip_init(&mac->chip, hw, intf);
	housekeeping_init(mac);
	INIT_WORK(&mac->set_multicast_hash_work, set_multicast_hash_handler);
	INIT_WORK(&mac->set_rts_cts_work, set_rts_cts_work);
	INIT_WORK(&mac->set_rx_filter_work, set_rx_filter_handler);
	INIT_WORK(&mac->process_intr, zd_process_intr);

	SET_IEEE80211_DEV(hw, &intf->dev);
	return hw;
}

struct mt76_dev *mt76_alloc_device(struct device *pdev)
{
	struct ieee80211_hw *hw;
	struct mt76_dev *dev;

	hw = ieee80211_alloc_hw(sizeof(*dev), &mt76_ops);
	if (!hw)
		return NULL;

	dev = hw->priv;
	dev->dev = pdev;
	dev->hw = hw;
	mutex_init(&dev->mutex);
	spin_lock_init(&dev->lock);
	spin_lock_init(&dev->irq_lock);

	return dev;
}

int rt2x00soc_probe(struct platform_device *pdev, const struct rt2x00_ops *ops)
{
	struct ieee80211_hw *hw;
	struct rt2x00_dev *rt2x00dev;
	int retval;

	hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
	if (!hw) {
		ERROR_PROBE("Failed to allocate hardware.\n");
		return -ENOMEM;
	}

	platform_set_drvdata(pdev, hw);

	rt2x00dev = hw->priv;
	rt2x00dev->dev = &pdev->dev;
	rt2x00dev->ops = ops;
	rt2x00dev->hw = hw;
	rt2x00dev->irq = platform_get_irq(pdev, 0);
	rt2x00dev->name = pdev->dev.driver->name;
	set_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags);

	rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);

	retval = rt2x00soc_alloc_reg(rt2x00dev);
	if (retval)
		goto exit_free_device;

	retval = rt2x00lib_probe_dev(rt2x00dev);
	if (retval)
		goto exit_free_reg;

	return 0;

exit_free_reg:
	rt2x00soc_free_reg(rt2x00dev);

exit_free_device:
	ieee80211_free_hw(hw);

	return retval;
}

/* This function both allocates and initializes hw and priv. */
struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
		struct ieee80211_ops *hw_ops)
{
	struct iwl_priv *priv;

	/* mac80211 allocates memory for this device instance, including
	 *   space for this driver's private structure */
	struct ieee80211_hw *hw =
		ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops);
	if (hw == NULL) {
		IWL_ERROR("Can not allocate network device\n");
		goto out;
	}

	priv = hw->priv;
	priv->hw = hw;

out:
	return hw;
}

struct mt7603_dev *mt7603_alloc_device(struct device *pdev)
{
	static const struct mt76_driver_ops drv_ops = {
		.txwi_size = MT_TXD_SIZE,
		.tx_prepare_skb = mt7603_tx_prepare_skb,
		.tx_complete_skb = mt7603_tx_complete_skb,
		.rx_skb = mt7603_queue_rx_skb,
		.rx_poll_complete = mt7603_rx_poll_complete,
	};
	struct ieee80211_hw *hw;
	struct mt7603_dev *dev;

	hw = ieee80211_alloc_hw(sizeof(*dev), &mt7603_ops);
	if (!hw)
		return NULL;

	dev = hw->priv;
	dev->mt76.dev = pdev;
	dev->mt76.hw = hw;
	dev->mt76.drv = &drv_ops;

	return dev;
}

struct ieee80211_hw *p54_init_common(size_t priv_data_len)
{
	struct ieee80211_hw *dev;
	struct p54_common *priv;

	dev = ieee80211_alloc_hw(priv_data_len, &p54_ops);
	if (!dev)
		return NULL;

	priv = dev->priv;
	priv->hw = dev;
	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
	priv->basic_rate_mask = 0x15f;
	spin_lock_init(&priv->tx_stats_lock);
	skb_queue_head_init(&priv->tx_queue);
	skb_queue_head_init(&priv->tx_pending);
	dev->flags = IEEE80211_HW_RX_INCLUDES_FCS |
		     IEEE80211_HW_SIGNAL_DBM |
		     IEEE80211_HW_SUPPORTS_PS |
		     IEEE80211_HW_PS_NULLFUNC_STACK |
		     IEEE80211_HW_MFP_CAPABLE |
		     IEEE80211_HW_REPORTS_TX_ACK_STATUS;

	dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
				      BIT(NL80211_IFTYPE_ADHOC) |
				      BIT(NL80211_IFTYPE_AP) |
				      BIT(NL80211_IFTYPE_MESH_POINT);

	dev->channel_change_time = 1000;	/* TODO: find actual value */
	priv->beacon_req_id = cpu_to_le32(0);
	priv->tx_stats[P54_QUEUE_BEACON].limit = 1;
	priv->tx_stats[P54_QUEUE_FWSCAN].limit = 1;
	priv->tx_stats[P54_QUEUE_MGMT].limit = 3;
	priv->tx_stats[P54_QUEUE_CAB].limit = 3;
	priv->tx_stats[P54_QUEUE_DATA].limit = 5;
	dev->queues = 1;
	priv->noise = -94;
	/*
	 * We support at most 8 tries no matter which rate they're at,
	 * we cannot support max_rates * max_rate_tries as we set it
	 * here, but setting it correctly to 4/2 or so would limit us
	 * artificially if the RC algorithm wants just two rates, so
	 * let's say 4/7, we'll redistribute it at TX time, see the
	 * comments there.
	 */
	dev->max_rates = 4;
	dev->max_rate_tries = 7;
	dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 +
				 sizeof(struct p54_tx_data);

	/*
	 * For now, disable PS by default because it affects
	 * link stability significantly.
	 */
	dev->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;

	mutex_init(&priv->conf_mutex);
	mutex_init(&priv->eeprom_mutex);
	init_completion(&priv->stat_comp);
	init_completion(&priv->eeprom_comp);
	init_completion(&priv->beacon_comp);
	INIT_DELAYED_WORK(&priv->work, p54_work);

	memset(&priv->mc_maclist[0], ~0, ETH_ALEN);
	priv->curchan = NULL;
	p54_reset_stats(priv);
	return dev;
}

static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
						const bool have_5ghz)
{
	int i, band;
	struct ieee80211_hw *hw;
	struct cw1200_common *priv;

	hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
	if (!hw)
		return NULL;

	priv = hw->priv;
	priv->hw = hw;
	priv->hw_type = -1;
	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
	priv->rates = cw1200_rates; /* TODO: fetch from FW */
	priv->mcs_rates = cw1200_n_rates;
	if (cw1200_ba_rx_tids != -1)
		priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
	else
		priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
	if (cw1200_ba_tx_tids != -1)
		priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
	else
		priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */

	hw->flags = IEEE80211_HW_SIGNAL_DBM |
		    IEEE80211_HW_SUPPORTS_PS |
		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
		    IEEE80211_HW_REPORTS_TX_ACK_STATUS |
		    IEEE80211_HW_SUPPORTS_UAPSD |
		    IEEE80211_HW_CONNECTION_MONITOR |
		    IEEE80211_HW_AMPDU_AGGREGATION |
		    IEEE80211_HW_TX_AMPDU_SETUP_IN_HW |
		    IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC;

	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
					  BIT(NL80211_IFTYPE_ADHOC) |
					  BIT(NL80211_IFTYPE_AP) |
					  BIT(NL80211_IFTYPE_MESH_POINT) |
					  BIT(NL80211_IFTYPE_P2P_CLIENT) |
					  BIT(NL80211_IFTYPE_P2P_GO);

#ifdef CONFIG_PM
	hw->wiphy->wowlan = &cw1200_wowlan_support;
#endif

	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;

	hw->queues = 4;

	priv->rts_threshold = -1;

	hw->max_rates = 8;
	hw->max_rate_tries = 15;
	hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
		8;  /* TKIP IV */

	hw->sta_data_size = sizeof(struct cw1200_sta_priv);

	hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz;
	if (have_5ghz)
		hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz;

	/* Channel params have to be cleared before registering wiphy again */
	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
		struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
		if (!sband)
			continue;
		for (i = 0; i < sband->n_channels; i++) {
			sband->channels[i].flags = 0;
			sband->channels[i].max_antenna_gain = 0;
			sband->channels[i].max_power = 30;
		}
	}

	hw->wiphy->max_scan_ssids = 2;
	hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;

	if (macaddr)
		SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
	else
		SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);

	/* Fix up mac address if necessary */
	if (hw->wiphy->perm_addr[3] == 0 &&
	    hw->wiphy->perm_addr[4] == 0 &&
	    hw->wiphy->perm_addr[5] == 0) {
		get_random_bytes(&hw->wiphy->perm_addr[3], 3);
	}

	mutex_init(&priv->wsm_cmd_mux);
	mutex_init(&priv->conf_mutex);
	priv->workqueue = create_singlethread_workqueue("cw1200_wq");
	sema_init(&priv->scan.lock, 1);
	INIT_WORK(&priv->scan.work, cw1200_scan_work);
	INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
	INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
	INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
			  cw1200_clear_recent_scan_work);
//.........这里部分代码省略.........

static int __init init_mac80211_hwsim(void)
{
	int i, err = 0;
	u8 addr[ETH_ALEN];
	struct mac80211_hwsim_data *data;
	struct ieee80211_hw *hw;
	DECLARE_MAC_BUF(mac);

	if (radios < 1 || radios > 65535)
		return -EINVAL;

	hwsim_radio_count = radios;
	hwsim_radios = kcalloc(hwsim_radio_count,
			       sizeof(struct ieee80211_hw *), GFP_KERNEL);
	if (hwsim_radios == NULL)
		return -ENOMEM;

	hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
	if (IS_ERR(hwsim_class)) {
		kfree(hwsim_radios);
		return PTR_ERR(hwsim_class);
	}

	memset(addr, 0, ETH_ALEN);
	addr[0] = 0x02;

	for (i = 0; i < hwsim_radio_count; i++) {
		printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
		       i);
		hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
		if (hw == NULL) {
			printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
			       "failed\n");
			err = -ENOMEM;
			goto failed;
		}
		hwsim_radios[i] = hw;

		data = hw->priv;
		data->dev = device_create_drvdata(hwsim_class, NULL, 0, hw,
						"hwsim%d", i);
		if (IS_ERR(data->dev)) {
			printk(KERN_DEBUG
			       "mac80211_hwsim: device_create_drvdata "
			       "failed (%ld)\n", PTR_ERR(data->dev));
			err = -ENOMEM;
			goto failed_drvdata;
		}
		data->dev->driver = &mac80211_hwsim_driver;

		SET_IEEE80211_DEV(hw, data->dev);
		addr[3] = i >> 8;
		addr[4] = i;
		SET_IEEE80211_PERM_ADDR(hw, addr);

		hw->channel_change_time = 1;
		hw->queues = 1;

		memcpy(data->channels, hwsim_channels, sizeof(hwsim_channels));
		memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
		data->band.channels = data->channels;
		data->band.n_channels = ARRAY_SIZE(hwsim_channels);
		data->band.bitrates = data->rates;
		data->band.n_bitrates = ARRAY_SIZE(hwsim_rates);
		hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band;

		err = ieee80211_register_hw(hw);
		if (err < 0) {
			printk(KERN_DEBUG "mac80211_hwsim: "
			       "ieee80211_register_hw failed (%d)\n", err);
			goto failed_hw;
		}

		printk(KERN_DEBUG "%s: hwaddr %s registered\n",
		       wiphy_name(hw->wiphy),
		       print_mac(mac, hw->wiphy->perm_addr));

		setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
			    (unsigned long) hw);
	}

	hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
	if (hwsim_mon == NULL)
		goto failed;

	rtnl_lock();

	err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
	if (err < 0)
		goto failed_mon;


	err = register_netdevice(hwsim_mon);
	if (err < 0)
		goto failed_mon;

	rtnl_unlock();

	return 0;

//.........这里部分代码省略.........

static struct iwl_op_mode *
iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
		      const struct iwl_fw *fw, struct dentry *dbgfs_dir)
{
	struct ieee80211_hw *hw;
	struct iwl_op_mode *op_mode;
	struct iwl_mvm *mvm;
	struct iwl_trans_config trans_cfg = {};
	static const u8 no_reclaim_cmds[] = {
		TX_CMD,
	};
	int err, scan_size;
	u32 min_backoff;

	/*
	 * We use IWL_MVM_STATION_COUNT to check the validity of the station
	 * index all over the driver - check that its value corresponds to the
	 * array size.
	 */
	BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);

	/********************************
	 * 1. Allocating and configuring HW data
	 ********************************/
	hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
				sizeof(struct iwl_mvm),
				&iwl_mvm_hw_ops);
	if (!hw)
		return NULL;

	op_mode = hw->priv;
	op_mode->ops = &iwl_mvm_ops;

	mvm = IWL_OP_MODE_GET_MVM(op_mode);
	mvm->dev = trans->dev;
	mvm->trans = trans;
	mvm->cfg = cfg;
	mvm->fw = fw;
	mvm->hw = hw;

	mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;

	mvm->aux_queue = 15;
	mvm->first_agg_queue = 16;
	mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
	if (mvm->cfg->base_params->num_of_queues == 16) {
		mvm->aux_queue = 11;
		mvm->first_agg_queue = 12;
	}
	mvm->sf_state = SF_UNINIT;

	mutex_init(&mvm->mutex);
	mutex_init(&mvm->d0i3_suspend_mutex);
	spin_lock_init(&mvm->async_handlers_lock);
	INIT_LIST_HEAD(&mvm->time_event_list);
	INIT_LIST_HEAD(&mvm->async_handlers_list);
	spin_lock_init(&mvm->time_event_lock);

	INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
	INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
	INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
	INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);

	spin_lock_init(&mvm->d0i3_tx_lock);
	skb_queue_head_init(&mvm->d0i3_tx);
	init_waitqueue_head(&mvm->d0i3_exit_waitq);

	SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);

	/*
	 * Populate the state variables that the transport layer needs
	 * to know about.
	 */
	trans_cfg.op_mode = op_mode;
	trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
	trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
	trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;

	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
		trans_cfg.bc_table_dword = true;

	if (!iwlwifi_mod_params.wd_disable)
		trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
	else
		trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;

	trans_cfg.command_names = iwl_mvm_cmd_strings;

	trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
	trans_cfg.cmd_fifo = IWL_MVM_CMD_FIFO;

	snprintf(mvm->hw->wiphy->fw_version,
		 sizeof(mvm->hw->wiphy->fw_version),
		 "%s", fw->fw_version);

	/* Configure transport layer */
	iwl_trans_configure(mvm->trans, &trans_cfg);

	trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
	trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
//.........这里部分代码省略.........

struct ieee80211_hw *cw1200_init_common(size_t priv_data_len, u8 *mac_addr)
{
	int i;
	struct ieee80211_hw *hw;
	struct cw1200_common *priv;
	struct ieee80211_supported_band *sband;
	int band;
	hw = ieee80211_alloc_hw(priv_data_len, &cw1200_ops);
	if (!hw)
		return NULL;

	priv = hw->priv;
	priv->hw = hw;
	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
	priv->rates = cw1200_rates; /* TODO: fetch from FW */
	priv->mcs_rates = cw1200_n_rates;
	/* Enable block ACK for every TID but voice. */
	priv->ba_tid_mask = 0x3F;

	hw->flags = IEEE80211_HW_SIGNAL_DBM |
		    IEEE80211_HW_SUPPORTS_PS |
		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
		    IEEE80211_HW_REPORTS_TX_ACK_STATUS |
		    IEEE80211_HW_SUPPORTS_UAPSD |
		    IEEE80211_HW_CONNECTION_MONITOR |
		    IEEE80211_HW_SUPPORTS_CQM_RSSI |
		    /* Aggregation is fully controlled by firmware.
		     * Do not need any support from the mac80211 stack */
		    /* IEEE80211_HW_AMPDU_AGGREGATION | */
#if defined(CONFIG_CW1200_USE_STE_EXTENSIONS)
		    IEEE80211_HW_SUPPORTS_P2P_PS |
		    IEEE80211_HW_SUPPORTS_CQM_BEACON_MISS |
		    IEEE80211_HW_SUPPORTS_CQM_TX_FAIL |
#endif /* CONFIG_CW1200_USE_STE_EXTENSIONS */
		    IEEE80211_HW_BEACON_FILTER;

	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
					  BIT(NL80211_IFTYPE_ADHOC) |
					  BIT(NL80211_IFTYPE_AP) |
					  BIT(NL80211_IFTYPE_MESH_POINT) |
					  BIT(NL80211_IFTYPE_P2P_CLIENT) |
					  BIT(NL80211_IFTYPE_P2P_GO);

	/* Support only for limited wowlan functionalities */
	hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY |
					  WIPHY_WOWLAN_DISCONNECT;
	hw->wiphy->wowlan.n_patterns = 0;

#if defined(CONFIG_CW1200_USE_STE_EXTENSIONS)
	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
#endif /* CONFIG_CW1200_USE_STE_EXTENSIONS */

#if defined(CONFIG_CW1200_DISABLE_BEACON_HINTS)
	hw->wiphy->flags |= WIPHY_FLAG_DISABLE_BEACON_HINTS;
#endif

	hw->channel_change_time = 1000;	/* TODO: find actual value */
	/* priv->beacon_req_id = cpu_to_le32(0); */
	hw->queues = 4;
	priv->noise = -94;

	hw->max_rates = 8;
	hw->max_rate_tries = 15;
	hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
		8  /* TKIP IV */ +
		12 /* TKIP ICV and MIC */;

	hw->sta_data_size = sizeof(struct cw1200_sta_priv);

	hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz;
#ifdef CONFIG_CW1200_5GHZ_SUPPORT
	hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz;
#endif /* CONFIG_CW1200_5GHZ_SUPPORT */

	/* Channel params have to be cleared before registering wiphy again */
	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
		sband = hw->wiphy->bands[band];
		if (!sband)
			continue;
		for (i = 0; i < sband->n_channels; i++) {
			sband->channels[i].flags = 0;
			sband->channels[i].max_antenna_gain = 0;
			sband->channels[i].max_power = 30;
		}
	}

	hw->wiphy->max_scan_ssids = 2;
	hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;

	SET_IEEE80211_PERM_ADDR(hw, mac_addr);

	if (hw->wiphy->perm_addr[3] == 0 &&
	    hw->wiphy->perm_addr[4] == 0 &&
	    hw->wiphy->perm_addr[5] == 0) {
		get_random_bytes(&hw->wiphy->perm_addr[3], 3);
	}

	mutex_init(&priv->wsm_cmd_mux);
	mutex_init(&priv->conf_mutex);
	priv->workqueue = create_singlethread_workqueue("cw1200_wq");
//.........这里部分代码省略.........

static struct iwl_op_mode *
iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
		      const struct iwl_fw *fw, struct dentry *dbgfs_dir)
{
	struct ieee80211_hw *hw;
	struct iwl_op_mode *op_mode;
	struct iwl_mvm *mvm;
	struct iwl_trans_config trans_cfg = {};
	static const u8 no_reclaim_cmds[] = {
		TX_CMD,
	};
	int err, scan_size;

	/********************************
	 * 1. Allocating and configuring HW data
	 ********************************/
	hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
				sizeof(struct iwl_mvm),
				&iwl_mvm_hw_ops);
	if (!hw)
		return NULL;

	op_mode = hw->priv;
	op_mode->ops = &iwl_mvm_ops;
	op_mode->trans = trans;

	mvm = IWL_OP_MODE_GET_MVM(op_mode);
	mvm->dev = trans->dev;
	mvm->trans = trans;
	mvm->cfg = cfg;
	mvm->fw = fw;
	mvm->hw = hw;

	mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;

	mutex_init(&mvm->mutex);
	spin_lock_init(&mvm->async_handlers_lock);
	INIT_LIST_HEAD(&mvm->time_event_list);
	INIT_LIST_HEAD(&mvm->async_handlers_list);
	spin_lock_init(&mvm->time_event_lock);

	INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
	INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
	INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);

	SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);

	/*
	 * Populate the state variables that the transport layer needs
	 * to know about.
	 */
	trans_cfg.op_mode = op_mode;
	trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
	trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
	trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;

	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
		trans_cfg.bc_table_dword = true;

	if (!iwlwifi_mod_params.wd_disable)
		trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
	else
		trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;

	trans_cfg.command_names = iwl_mvm_cmd_strings;

	trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
	trans_cfg.cmd_fifo = IWL_MVM_CMD_FIFO;

	snprintf(mvm->hw->wiphy->fw_version,
		 sizeof(mvm->hw->wiphy->fw_version),
		 "%s", fw->fw_version);

	/* Configure transport layer */
	iwl_trans_configure(mvm->trans, &trans_cfg);

	trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
	trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);

	/* set up notification wait support */
	iwl_notification_wait_init(&mvm->notif_wait);

	/* Init phy db */
	mvm->phy_db = iwl_phy_db_init(trans);
	if (!mvm->phy_db) {
		IWL_ERR(mvm, "Cannot init phy_db\n");
		goto out_free;
	}

	IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
		 mvm->cfg->name, mvm->trans->hw_rev);

	err = iwl_trans_start_hw(mvm->trans);
	if (err)
		goto out_free;

	iwl_mvm_tt_initialize(mvm);

	mutex_lock(&mvm->mutex);
	err = iwl_run_init_mvm_ucode(mvm, true);
//.........这里部分代码省略.........

static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	void __iomem *mem;
	struct ath_wiphy *aphy;
	struct ath_softc *sc;
	struct ieee80211_hw *hw;
	u8 csz;
	u16 subsysid;
	u32 val;
	int ret = 0;
	struct ath_hw *ah;

	if (pci_enable_device(pdev))
		return -EIO;

	ret =  pci_set_dma_mask(pdev, DMA_BIT_MASK(32));

	if (ret) {
		printk(KERN_ERR "ath9k: 32-bit DMA not available\n");
		goto bad;
	}

	ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));

	if (ret) {
		printk(KERN_ERR "ath9k: 32-bit DMA consistent "
			"DMA enable failed\n");
		goto bad;
	}

	/*
	 * Cache line size is used to size and align various
	 * structures used to communicate with the hardware.
	 */
	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz);
	if (csz == 0) {
		/*
		 * Linux 2.4.18 (at least) writes the cache line size
		 * register as a 16-bit wide register which is wrong.
		 * We must have this setup properly for rx buffer
		 * DMA to work so force a reasonable value here if it
		 * comes up zero.
		 */
		csz = L1_CACHE_BYTES / sizeof(u32);
		pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz);
	}
	/*
	 * The default setting of latency timer yields poor results,
	 * set it to the value used by other systems. It may be worth
	 * tweaking this setting more.
	 */
	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8);

	pci_set_master(pdev);

	/*
	 * Disable the RETRY_TIMEOUT register (0x41) to keep
	 * PCI Tx retries from interfering with C3 CPU state.
	 */
	pci_read_config_dword(pdev, 0x40, &val);
	if ((val & 0x0000ff00) != 0)
		pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);

	ret = pci_request_region(pdev, 0, "ath9k");
	if (ret) {
		dev_err(&pdev->dev, "PCI memory region reserve error\n");
		ret = -ENODEV;
		goto bad;
	}

	mem = pci_iomap(pdev, 0, 0);
	if (!mem) {
		printk(KERN_ERR "PCI memory map error\n") ;
		ret = -EIO;
		goto bad1;
	}

	hw = ieee80211_alloc_hw(sizeof(struct ath_wiphy) +
				sizeof(struct ath_softc), &ath9k_ops);
	if (!hw) {
		dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
		ret = -ENOMEM;
		goto bad2;
	}

	SET_IEEE80211_DEV(hw, &pdev->dev);
	pci_set_drvdata(pdev, hw);

	aphy = hw->priv;
	sc = (struct ath_softc *) (aphy + 1);
	aphy->sc = sc;
	aphy->hw = hw;
	sc->pri_wiphy = aphy;
	sc->hw = hw;
	sc->dev = &pdev->dev;
	sc->mem = mem;
	sc->bus_ops = &ath_pci_bus_ops;

	pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsysid);
	ret = ath_init_device(id->device, sc, subsysid);
//.........这里部分代码省略.........

static int __devinit agnx_pci_probe(struct pci_dev *pdev,
				    const struct pci_device_id *id)
{
	struct ieee80211_hw *dev;
	struct agnx_priv *priv;
	int err;

	err = pci_enable_device(pdev);
	if (err) {
		dev_err(&pdev->dev, "can't enable pci device\n");
		return err;
	}

	err = pci_request_regions(pdev, "agnx-pci");
	if (err) {
		dev_err(&pdev->dev, "can't reserve PCI resources\n");
		return err;
	}

	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) ||
	    pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
		dev_err(&pdev->dev, "no suitable DMA available\n");
		err = -EIO;
		goto err_free_reg;
	}

	pci_set_master(pdev);

	dev = ieee80211_alloc_hw(sizeof(*priv), &agnx_ops);
	if (!dev) {
		dev_err(&pdev->dev, "ieee80211 alloc failed\n");
		err = -ENOMEM;
		goto err_free_reg;
	}
	priv = dev->priv;
	memset(priv, 0, sizeof(*priv));
	priv->mode = NL80211_IFTYPE_MONITOR;
	priv->pdev = pdev;
	priv->hw = dev;
	spin_lock_init(&priv->lock);
	priv->init_status = AGNX_UNINIT;

	priv->ctl = pci_iomap(pdev, 0, 0);
/*	dev_dbg(&pdev->dev, "MEM1 mapped address is 0x%p\n", priv->ctl); */
	if (!priv->ctl) {
		dev_err(&pdev->dev, "can't map device memory\n");
		err = -ENOMEM;
		goto err_free_dev;
	}
	priv->data = pci_iomap(pdev, 1, 0);
	if (!priv->data) {
		dev_err(&pdev->dev, "can't map device memory\n");
		err = -ENOMEM;
		goto err_iounmap2;
	}

	pci_read_config_byte(pdev, PCI_REVISION_ID, &priv->revid);

	priv->band.channels   = (struct ieee80211_channel *)agnx_channels;
	priv->band.n_channels = ARRAY_SIZE(agnx_channels);
	priv->band.bitrates   = (struct ieee80211_rate *)agnx_rates_80211g;
	priv->band.n_bitrates = ARRAY_SIZE(agnx_rates_80211g);

	/* Init ieee802.11 dev  */
	SET_IEEE80211_DEV(dev, &pdev->dev);
	pci_set_drvdata(pdev, dev);
	dev->extra_tx_headroom = sizeof(struct agnx_hdr);

	/* FIXME It only include FCS in promious mode but not manage mode */
/*      dev->flags =  IEEE80211_HW_RX_INCLUDES_FCS; */
	dev->channel_change_time = 5000;
	dev->max_signal = 100;
	/* FIXME */
	dev->queues = 1;

	agnx_get_mac_address(priv);

	SET_IEEE80211_PERM_ADDR(dev, priv->mac_addr);

/* 	/\* FIXME *\/ */
/* 	for (i = 1; i < NUM_DRIVE_MODES; i++) { */
/* 		err = ieee80211_register_hwmode(dev, &priv->modes[i]); */
/* 		if (err) { */
/* 			printk(KERN_ERR PFX "Can't register hwmode\n"); */
/* 			goto  err_iounmap; */
/* 		} */
/* 	} */

	priv->channel = 1;
	dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;

	err = ieee80211_register_hw(dev);
	if (err) {
		dev_err(&pdev->dev, "can't register hardware\n");
		goto err_iounmap;
	}

	agnx_hw_reset(priv);

	dev_info(&pdev->dev, "%s: hwaddr %pM, Rev 0x%02x\n",
//.........这里部分代码省略.........