C++ ieee80211_free_hw函数代码示例

void cw1200_free_common(struct ieee80211_hw *dev)
{
	/* struct cw1200_common *priv = dev->priv; */
	/* unsigned int i; */

	ieee80211_free_hw(dev);
}

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

	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->modes[0].mode = MODE_IEEE80211G;
	mac->modes[0].num_rates = ARRAY_SIZE(zd_rates);
	mac->modes[0].rates = mac->rates;
	mac->modes[0].num_channels = ARRAY_SIZE(zd_channels);
	mac->modes[0].channels = mac->channels;
	mac->modes[1].mode = MODE_IEEE80211B;
	mac->modes[1].num_rates = 4;
	mac->modes[1].rates = mac->rates;
	mac->modes[1].num_channels = ARRAY_SIZE(zd_channels);
	mac->modes[1].channels = mac->channels;

	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
		     IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED;
	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);

	for (i = 0; i < 2; i++) {
		if (ieee80211_register_hwmode(hw, &mac->modes[i])) {
			dev_dbg_f(&intf->dev, "cannot register hwmode\n");
			ieee80211_free_hw(hw);
			return NULL;
		}
	}

	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);

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

struct mt7601u_dev *mt7601u_alloc_device(struct device *pdev)
{
	struct ieee80211_hw *hw;
	struct mt7601u_dev *dev;

	hw = ieee80211_alloc_hw(sizeof(*dev), &mt7601u_ops);
	if (!hw)
		return NULL;

	dev = hw->priv;
	dev->dev = pdev;
	dev->hw = hw;
	mutex_init(&dev->vendor_req_mutex);
	mutex_init(&dev->reg_atomic_mutex);
	mutex_init(&dev->hw_atomic_mutex);
	mutex_init(&dev->mutex);
	spin_lock_init(&dev->tx_lock);
	spin_lock_init(&dev->rx_lock);
	spin_lock_init(&dev->lock);
	spin_lock_init(&dev->mac_lock);
	spin_lock_init(&dev->con_mon_lock);
	atomic_set(&dev->avg_ampdu_len, 1);
	skb_queue_head_init(&dev->tx_skb_done);

	dev->stat_wq = alloc_workqueue("mt7601u", WQ_UNBOUND, 0);
	if (!dev->stat_wq) {
		ieee80211_free_hw(hw);
		return NULL;
	}

	return dev;
}

/*
* called from both kernel as from wl_*()
* precondition: perimeter lock is not acquired.
*/
static void wl_remove(struct pci_dev *pdev)
{
	struct wl_info *wl;
	struct ieee80211_hw *hw;
	int status;

	hw = pci_get_drvdata(pdev);
	wl = HW_TO_WL(hw);
	if (!wl) {
		pr_err("wl: wl_remove: pci_get_drvdata failed\n");
		return;
	}

	WL_LOCK(wl);
	status = wlc_chipmatch(pdev->vendor, pdev->device);
	WL_UNLOCK(wl);
	if (!status) {
		wiphy_err(wl->wiphy, "wl: wl_remove: wlc_chipmatch failed\n");
		return;
	}
	if (wl->wlc) {
		wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
		wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
		ieee80211_unregister_hw(hw);
		WL_LOCK(wl);
		wl_down(wl);
		WL_UNLOCK(wl);
	}
	pci_disable_device(pdev);

	wl_free(wl);

	pci_set_drvdata(pdev, NULL);
	ieee80211_free_hw(hw);
}

static int ar9170_usb_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	struct ar9170_usb *aru;
	struct ar9170 *ar;
	struct usb_device *udev;
	int err;

	aru = ar9170_alloc(sizeof(*aru));
	if (IS_ERR(aru)) {
		err = PTR_ERR(aru);
		goto out;
	}

	udev = interface_to_usbdev(intf);
	usb_get_dev(udev);
	aru->udev = udev;
	aru->intf = intf;
	ar = &aru->common;

	aru->req_one_stage_fw = ar9170_requires_one_stage(id);

	usb_set_intfdata(intf, aru);
	SET_IEEE80211_DEV(ar->hw, &intf->dev);

	init_usb_anchor(&aru->rx_submitted);
	init_usb_anchor(&aru->tx_pending);
	init_usb_anchor(&aru->tx_submitted);
	init_completion(&aru->cmd_wait);
	init_completion(&aru->firmware_loading_complete);
	spin_lock_init(&aru->tx_urb_lock);

	aru->tx_pending_urbs = 0;
	atomic_set(&aru->tx_submitted_urbs, 0);

	aru->common.stop = ar9170_usb_stop;
	aru->common.flush = ar9170_usb_flush;
	aru->common.open = ar9170_usb_open;
	aru->common.tx = ar9170_usb_tx;
	aru->common.exec_cmd = ar9170_usb_exec_cmd;
	aru->common.callback_cmd = ar9170_usb_callback_cmd;

#ifdef CONFIG_PM
	udev->reset_resume = 1;
#endif /* CONFIG_PM */
	err = ar9170_usb_reset(aru);
	if (err)
		goto err_freehw;

	usb_get_dev(aru->udev);
	return request_firmware_nowait(THIS_MODULE, 1, "ar9170.fw",
				       &aru->udev->dev, GFP_KERNEL, aru,
				       ar9170_usb_firmware_step2);
err_freehw:
	usb_set_intfdata(intf, NULL);
	usb_put_dev(udev);
	ieee80211_free_hw(ar->hw);
out:
	return err;
}

static int mt76x2u_probe(struct usb_interface *intf,
			 const struct usb_device_id *id)
{
	struct usb_device *udev = interface_to_usbdev(intf);
	struct mt76x02_dev *dev;
	int err;

	dev = mt76x2u_alloc_device(&intf->dev);
	if (!dev)
		return -ENOMEM;

	udev = usb_get_dev(udev);
	usb_reset_device(udev);

	mt76x02u_init_mcu(&dev->mt76);
	err = mt76u_init(&dev->mt76, intf);
	if (err < 0)
		goto err;

	dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
	dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);

	err = mt76x2u_register_device(dev);
	if (err < 0)
		goto err;

	return 0;

err:
	ieee80211_free_hw(mt76_hw(dev));
	usb_set_intfdata(intf, NULL);
	usb_put_dev(udev);

	return err;
}

void ath9k_deinit_device(struct ath_softc *sc)
{
	struct ieee80211_hw *hw = sc->hw;
	int i = 0;

	ath9k_ps_wakeup(sc);

	wiphy_rfkill_stop_polling(sc->hw->wiphy);
	ath_deinit_leds(sc);

	for (i = 0; i < sc->num_sec_wiphy; i++) {
		struct ath_wiphy *aphy = sc->sec_wiphy[i];
		if (aphy == NULL)
			continue;
		sc->sec_wiphy[i] = NULL;
		ieee80211_unregister_hw(aphy->hw);
		ieee80211_free_hw(aphy->hw);
	}
	kfree(sc->sec_wiphy);

	ieee80211_unregister_hw(hw);
	ath_rx_cleanup(sc);
	ath_tx_cleanup(sc);
	ath9k_deinit_softc(sc);
}

static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
{
	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
	int i;

	iwl_mvm_leds_exit(mvm);

	iwl_mvm_tt_exit(mvm);

	ieee80211_unregister_hw(mvm->hw);

	kfree(mvm->scan_cmd);
	vfree(mvm->fw_error_dump);
	kfree(mvm->fw_error_sram);
	kfree(mvm->fw_error_rxf);
	kfree(mvm->mcast_filter_cmd);
	mvm->mcast_filter_cmd = NULL;

#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
	kfree(mvm->d3_resume_sram);
#endif

	iwl_trans_op_mode_leave(mvm->trans);

	iwl_phy_db_free(mvm->phy_db);
	mvm->phy_db = NULL;

	iwl_free_nvm_data(mvm->nvm_data);
	for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
		kfree(mvm->nvm_sections[i].data);

	ieee80211_free_hw(mvm->hw);
}

void rtl_usb_disconnect(struct usb_interface *intf)
{
	struct ieee80211_hw *hw = usb_get_intfdata(intf);
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));

	if (unlikely(!rtlpriv))
		return;

	/* just in case driver is removed before firmware callback */
	wait_for_completion(&rtlpriv->firmware_loading_complete);
	/*ieee80211_unregister_hw will call ops_stop */
	if (rtlmac->mac80211_registered == 1) {
		ieee80211_unregister_hw(hw);
		rtlmac->mac80211_registered = 0;
	} else {
		rtl_deinit_deferred_work(hw);
		rtlpriv->intf_ops->adapter_stop(hw);
	}
	/*deinit rfkill */
	/* rtl_deinit_rfkill(hw); */
	rtl_usb_deinit(hw);
	rtl_deinit_core(hw);
	kfree(rtlpriv->usb_data);
	rtlpriv->cfg->ops->deinit_sw_leds(hw);
	rtlpriv->cfg->ops->deinit_sw_vars(hw);
	_rtl_usb_io_handler_release(hw);
	usb_put_dev(rtlusb->udev);
	usb_set_intfdata(intf, NULL);
	ieee80211_free_hw(hw);
}

static void
mt76pci_remove(struct pci_dev *pdev)
{
	struct mt7603_dev *dev = pci_get_drvdata(pdev);

	mt76_unregister_device(&dev->mt76);
	mt7603_mcu_exit(dev);
	mt7603_dma_cleanup(dev);
	ieee80211_free_hw(mt76_hw(dev));
}

static void
mt76pci_remove(struct pci_dev *pdev)
{
	struct mt76_dev *mdev = pci_get_drvdata(pdev);
	struct mt76x2_dev *dev = container_of(mdev, struct mt76x2_dev, mt76);

	mt76_unregister_device(mdev);
	mt76x2_cleanup(dev);
	ieee80211_free_hw(mdev->hw);
}

static int
mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	struct mt76x2_dev *dev;
	int ret;

	ret = pcim_enable_device(pdev);
	if (ret)
		return ret;

	ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
	if (ret)
		return ret;

	pci_set_master(pdev);

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

	dev = mt76x2_alloc_device(&pdev->dev);
	if (!dev)
		return -ENOMEM;

	mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);

	dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
	dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);

	ret = devm_request_irq(dev->mt76.dev, pdev->irq, mt76x2_irq_handler,
			       IRQF_SHARED, KBUILD_MODNAME, dev);
	if (ret)
		goto error;

	ret = mt76x2_register_device(dev);
	if (ret)
		goto error;

	/* Fix up ASPM configuration */

	/* RG_SSUSB_G1_CDR_BIR_LTR = 0x9 */
	mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9);

	/* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */
	mt76_rmw_field(dev, 0x15a0c, 0xf << 28, 0xf);

	/* RG_SSUSB_CDR_BR_PE1D = 0x3 */
	mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3);

	return 0;

error:
	ieee80211_free_hw(mt76_hw(dev));
	return ret;
}

static int mt7601u_probe(struct usb_interface *usb_intf,
			 const struct usb_device_id *id)
{
	struct usb_device *usb_dev = interface_to_usbdev(usb_intf);
	struct mt7601u_dev *dev;
	u32 asic_rev, mac_rev;
	int ret;

	dev = mt7601u_alloc_device(&usb_intf->dev);
	if (!dev)
		return -ENOMEM;

	usb_dev = usb_get_dev(usb_dev);
	usb_reset_device(usb_dev);

	usb_set_intfdata(usb_intf, dev);

	ret = mt7601u_assign_pipes(usb_intf, dev);
	if (ret)
		goto err;
	ret = mt7601u_wait_asic_ready(dev);
	if (ret)
		goto err;

	asic_rev = mt7601u_rr(dev, MT_ASIC_VERSION);
	mac_rev = mt7601u_rr(dev, MT_MAC_CSR0);
	dev_info(dev->dev, "ASIC revision: %08x MAC revision: %08x\n",
		 asic_rev, mac_rev);

	/* Note: vendor driver skips this check for MT7601U */
	if (!(mt7601u_rr(dev, MT_EFUSE_CTRL) & MT_EFUSE_CTRL_SEL))
		dev_warn(dev->dev, "Warning: eFUSE not present\n");

	ret = mt7601u_init_hardware(dev);
	if (ret)
		goto err;
	ret = mt7601u_register_device(dev);
	if (ret)
		goto err_hw;

	set_bit(MT7601U_STATE_INITIALIZED, &dev->state);

	return 0;
err_hw:
	mt7601u_cleanup(dev);
err:
	usb_set_intfdata(usb_intf, NULL);
	usb_put_dev(interface_to_usbdev(usb_intf));

	destroy_workqueue(dev->stat_wq);
	ieee80211_free_hw(dev->hw);
	return ret;
}

static void mt7601u_disconnect(struct usb_interface *usb_intf)
{
	struct mt7601u_dev *dev = usb_get_intfdata(usb_intf);

	ieee80211_unregister_hw(dev->hw);
	mt7601u_cleanup(dev);

	usb_set_intfdata(usb_intf, NULL);
	usb_put_dev(interface_to_usbdev(usb_intf));

	destroy_workqueue(dev->stat_wq);
	ieee80211_free_hw(dev->hw);
}

int rt2x00soc_remove(struct platform_device *pdev)
{
	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
	struct rt2x00_dev *rt2x00dev = hw->priv;

	/*
	 * Free all allocated data.
	 */
	rt2x00lib_remove_dev(rt2x00dev);
	rt2x00soc_free_reg(rt2x00dev);
	ieee80211_free_hw(hw);

	return 0;
}