[PATCH 02/11] This change reorganizes the main ath5k file in order to re-group

[Bruno Randolf <br1@einfach.org>]

From: Bob Copeland <me@bobcopeland.com>

related functions and remove most of the forward declarations
(from 61 down to 3).  This is, unfortunately, a lot of churn, but
there should be no functional changes.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Bruno Randolf <br1@einfach.org>

---
Bruno: rebased to wireless-next
---
 drivers/net/wireless/ath/ath5k/base.c | 1662 +++++++++++++++------------------
 1 files changed, 764 insertions(+), 898 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index f8c699d..9e4636f 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -70,11 +70,6 @@ static int modparam_all_channels;
 module_param_named(all_channels, modparam_all_channels, bool, S_IRUGO);
 MODULE_PARM_DESC(all_channels, "Expose all channels the device can use.");
 
-
-/******************\
-* Internal defines *
-\******************/
-
 /* Module info */
 MODULE_AUTHOR("Jiri Slaby");
 MODULE_AUTHOR("Nick Kossifidis");
@@ -83,6 +78,10 @@ MODULE_SUPPORTED_DEVICE("Atheros 5xxx WLAN cards");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION("0.6.0 (EXPERIMENTAL)");
 
+static int ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan);
+static int ath5k_beacon_update(struct ieee80211_hw *hw,
+		struct ieee80211_vif *vif);
+static void ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf);
 
 /* Known PCI ids */
 static DEFINE_PCI_DEVICE_TABLE(ath5k_pci_id_table) = {
@@ -190,129 +189,6 @@ static const struct ieee80211_rate ath5k_rates[] = {
 	/* XR missing */
 };
 
-/*
- * Prototypes - PCI stack related functions
- */
-static int __devinit	ath5k_pci_probe(struct pci_dev *pdev,
-				const struct pci_device_id *id);
-static void __devexit	ath5k_pci_remove(struct pci_dev *pdev);
-#ifdef CONFIG_PM_SLEEP
-static int		ath5k_pci_suspend(struct device *dev);
-static int		ath5k_pci_resume(struct device *dev);
-
-static SIMPLE_DEV_PM_OPS(ath5k_pm_ops, ath5k_pci_suspend, ath5k_pci_resume);
-#define ATH5K_PM_OPS	(&ath5k_pm_ops)
-#else
-#define ATH5K_PM_OPS	NULL
-#endif /* CONFIG_PM_SLEEP */
-
-static struct pci_driver ath5k_pci_driver = {
-	.name		= KBUILD_MODNAME,
-	.id_table	= ath5k_pci_id_table,
-	.probe		= ath5k_pci_probe,
-	.remove		= __devexit_p(ath5k_pci_remove),
-	.driver.pm	= ATH5K_PM_OPS,
-};
-
-
-
-/*
- * Prototypes - MAC 802.11 stack related functions
- */
-static int ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
-static int ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
-		struct ath5k_txq *txq);
-static int ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan);
-static int ath5k_start(struct ieee80211_hw *hw);
-static void ath5k_stop(struct ieee80211_hw *hw);
-static int ath5k_add_interface(struct ieee80211_hw *hw,
-		struct ieee80211_vif *vif);
-static void ath5k_remove_interface(struct ieee80211_hw *hw,
-		struct ieee80211_vif *vif);
-static int ath5k_config(struct ieee80211_hw *hw, u32 changed);
-static u64 ath5k_prepare_multicast(struct ieee80211_hw *hw,
-				   struct netdev_hw_addr_list *mc_list);
-static void ath5k_configure_filter(struct ieee80211_hw *hw,
-		unsigned int changed_flags,
-		unsigned int *new_flags,
-		u64 multicast);
-static int ath5k_set_key(struct ieee80211_hw *hw,
-		enum set_key_cmd cmd,
-		struct ieee80211_vif *vif, struct ieee80211_sta *sta,
-		struct ieee80211_key_conf *key);
-static int ath5k_get_stats(struct ieee80211_hw *hw,
-		struct ieee80211_low_level_stats *stats);
-static int ath5k_get_survey(struct ieee80211_hw *hw,
-		int idx, struct survey_info *survey);
-static u64 ath5k_get_tsf(struct ieee80211_hw *hw);
-static void ath5k_set_tsf(struct ieee80211_hw *hw, u64 tsf);
-static void ath5k_reset_tsf(struct ieee80211_hw *hw);
-static int ath5k_beacon_update(struct ieee80211_hw *hw,
-		struct ieee80211_vif *vif);
-static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
-		struct ieee80211_vif *vif,
-		struct ieee80211_bss_conf *bss_conf,
-		u32 changes);
-static void ath5k_sw_scan_start(struct ieee80211_hw *hw);
-static void ath5k_sw_scan_complete(struct ieee80211_hw *hw);
-static void ath5k_set_coverage_class(struct ieee80211_hw *hw,
-		u8 coverage_class);
-
-static const struct ieee80211_ops ath5k_hw_ops = {
-	.tx 		= ath5k_tx,
-	.start 		= ath5k_start,
-	.stop 		= ath5k_stop,
-	.add_interface 	= ath5k_add_interface,
-	.remove_interface = ath5k_remove_interface,
-	.config 	= ath5k_config,
-	.prepare_multicast = ath5k_prepare_multicast,
-	.configure_filter = ath5k_configure_filter,
-	.set_key 	= ath5k_set_key,
-	.get_stats 	= ath5k_get_stats,
-	.get_survey	= ath5k_get_survey,
-	.conf_tx 	= NULL,
-	.get_tsf 	= ath5k_get_tsf,
-	.set_tsf 	= ath5k_set_tsf,
-	.reset_tsf 	= ath5k_reset_tsf,
-	.bss_info_changed = ath5k_bss_info_changed,
-	.sw_scan_start	= ath5k_sw_scan_start,
-	.sw_scan_complete = ath5k_sw_scan_complete,
-	.set_coverage_class = ath5k_set_coverage_class,
-};
-
-/*
- * Prototypes - Internal functions
- */
-/* Attach detach */
-static int 	ath5k_attach(struct pci_dev *pdev,
-			struct ieee80211_hw *hw);
-static void 	ath5k_detach(struct pci_dev *pdev,
-			struct ieee80211_hw *hw);
-/* Channel/mode setup */
-static inline short ath5k_ieee2mhz(short chan);
-static unsigned int ath5k_copy_channels(struct ath5k_hw *ah,
-				struct ieee80211_channel *channels,
-				unsigned int mode,
-				unsigned int max);
-static int 	ath5k_setup_bands(struct ieee80211_hw *hw);
-static int 	ath5k_chan_set(struct ath5k_softc *sc,
-				struct ieee80211_channel *chan);
-static void	ath5k_setcurmode(struct ath5k_softc *sc,
-				unsigned int mode);
-static void	ath5k_mode_setup(struct ath5k_softc *sc);
-
-/* Descriptor setup */
-static int	ath5k_desc_alloc(struct ath5k_softc *sc,
-				struct pci_dev *pdev);
-static void	ath5k_desc_free(struct ath5k_softc *sc,
-				struct pci_dev *pdev);
-/* Buffers setup */
-static int 	ath5k_rxbuf_setup(struct ath5k_softc *sc,
-				struct ath5k_buf *bf);
-static int 	ath5k_txbuf_setup(struct ath5k_softc *sc,
-				struct ath5k_buf *bf,
-				struct ath5k_txq *txq, int padsize);
-
 static inline void ath5k_txbuf_free_skb(struct ath5k_softc *sc,
 				struct ath5k_buf *bf)
 {
@@ -345,35 +221,6 @@ static inline void ath5k_rxbuf_free_skb(struct ath5k_softc *sc,
 }
 
 
-/* Queues setup */
-static struct 	ath5k_txq *ath5k_txq_setup(struct ath5k_softc *sc,
-				int qtype, int subtype);
-static int 	ath5k_beaconq_setup(struct ath5k_hw *ah);
-static int 	ath5k_beaconq_config(struct ath5k_softc *sc);
-static void 	ath5k_txq_drainq(struct ath5k_softc *sc,
-				struct ath5k_txq *txq);
-static void 	ath5k_txq_cleanup(struct ath5k_softc *sc);
-static void 	ath5k_txq_release(struct ath5k_softc *sc);
-/* Rx handling */
-static int 	ath5k_rx_start(struct ath5k_softc *sc);
-static void 	ath5k_rx_stop(struct ath5k_softc *sc);
-static unsigned int ath5k_rx_decrypted(struct ath5k_softc *sc,
-					struct sk_buff *skb,
-					struct ath5k_rx_status *rs);
-static void 	ath5k_tasklet_rx(unsigned long data);
-/* Tx handling */
-static void 	ath5k_tx_processq(struct ath5k_softc *sc,
-				struct ath5k_txq *txq);
-static void 	ath5k_tasklet_tx(unsigned long data);
-/* Beacon handling */
-static int 	ath5k_beacon_setup(struct ath5k_softc *sc,
-					struct ath5k_buf *bf);
-static void 	ath5k_beacon_send(struct ath5k_softc *sc);
-static void 	ath5k_beacon_config(struct ath5k_softc *sc);
-static void	ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf);
-static void	ath5k_tasklet_beacon(unsigned long data);
-static void	ath5k_tasklet_ani(unsigned long data);
-
 static inline u64 ath5k_extend_tsf(struct ath5k_hw *ah, u32 rstamp)
 {
 	u64 tsf = ath5k_hw_get_tsf64(ah);
@@ -384,50 +231,6 @@ static inline u64 ath5k_extend_tsf(struct ath5k_hw *ah, u32 rstamp)
 	return (tsf & ~0x7fff) | rstamp;
 }
 
-/* Interrupt handling */
-static int 	ath5k_init(struct ath5k_softc *sc);
-static int 	ath5k_stop_locked(struct ath5k_softc *sc);
-static int 	ath5k_stop_hw(struct ath5k_softc *sc);
-static irqreturn_t ath5k_intr(int irq, void *dev_id);
-static void ath5k_reset_work(struct work_struct *work);
-
-static void 	ath5k_tasklet_calibrate(unsigned long data);
-
-/*
- * Module init/exit functions
- */
-static int __init
-init_ath5k_pci(void)
-{
-	int ret;
-
-	ath5k_debug_init();
-
-	ret = pci_register_driver(&ath5k_pci_driver);
-	if (ret) {
-		printk(KERN_ERR "ath5k_pci: can't register pci driver\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-static void __exit
-exit_ath5k_pci(void)
-{
-	pci_unregister_driver(&ath5k_pci_driver);
-
-	ath5k_debug_finish();
-}
-
-module_init(init_ath5k_pci);
-module_exit(exit_ath5k_pci);
-
-
-/********************\
-* PCI Initialization *
-\********************/
-
 static const char *
 ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val)
 {
@@ -466,299 +269,6 @@ static const struct ath_ops ath5k_common_ops = {
 	.write = ath5k_iowrite32,
 };
 
-static int __devinit
-ath5k_pci_probe(struct pci_dev *pdev,
-		const struct pci_device_id *id)
-{
-	void __iomem *mem;
-	struct ath5k_softc *sc;
-	struct ath_common *common;
-	struct ieee80211_hw *hw;
-	int ret;
-	u8 csz;
-
-	/*
-	 * L0s needs to be disabled on all ath5k cards.
-	 *
-	 * For distributions shipping with CONFIG_PCIEASPM (this will be enabled
-	 * by default in the future in 2.6.36) this will also mean both L1 and
-	 * L0s will be disabled when a pre 1.1 PCIe device is detected. We do
-	 * know L1 works correctly even for all ath5k pre 1.1 PCIe devices
-	 * though but cannot currently undue the effect of a blacklist, for
-	 * details you can read pcie_aspm_sanity_check() and see how it adjusts
-	 * the device link capability.
-	 *
-	 * It may be possible in the future to implement some PCI API to allow
-	 * drivers to override blacklists for pre 1.1 PCIe but for now it is
-	 * best to accept that both L0s and L1 will be disabled completely for
-	 * distributions shipping with CONFIG_PCIEASPM rather than having this
-	 * issue present. Motivation for adding this new API will be to help
-	 * with power consumption for some of these devices.
-	 */
-	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S);
-
-	ret = pci_enable_device(pdev);
-	if (ret) {
-		dev_err(&pdev->dev, "can't enable device\n");
-		goto err;
-	}
-
-	/* XXX 32-bit addressing only */
-	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-	if (ret) {
-		dev_err(&pdev->dev, "32-bit DMA not available\n");
-		goto err_dis;
-	}
-
-	/*
-	 * 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 >> 2;
-		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);
-
-	/* Enable bus mastering */
-	pci_set_master(pdev);
-
-	/*
-	 * Disable the RETRY_TIMEOUT register (0x41) to keep
-	 * PCI Tx retries from interfering with C3 CPU state.
-	 */
-	pci_write_config_byte(pdev, 0x41, 0);
-
-	ret = pci_request_region(pdev, 0, "ath5k");
-	if (ret) {
-		dev_err(&pdev->dev, "cannot reserve PCI memory region\n");
-		goto err_dis;
-	}
-
-	mem = pci_iomap(pdev, 0, 0);
-	if (!mem) {
-		dev_err(&pdev->dev, "cannot remap PCI memory region\n") ;
-		ret = -EIO;
-		goto err_reg;
-	}
-
-	/*
-	 * Allocate hw (mac80211 main struct)
-	 * and hw->priv (driver private data)
-	 */
-	hw = ieee80211_alloc_hw(sizeof(*sc), &ath5k_hw_ops);
-	if (hw == NULL) {
-		dev_err(&pdev->dev, "cannot allocate ieee80211_hw\n");
-		ret = -ENOMEM;
-		goto err_map;
-	}
-
-	dev_info(&pdev->dev, "registered as '%s'\n", wiphy_name(hw->wiphy));
-
-	/* Initialize driver private data */
-	SET_IEEE80211_DEV(hw, &pdev->dev);
-	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
-		    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-		    IEEE80211_HW_SIGNAL_DBM;
-
-	hw->wiphy->interface_modes =
-		BIT(NL80211_IFTYPE_AP) |
-		BIT(NL80211_IFTYPE_STATION) |
-		BIT(NL80211_IFTYPE_ADHOC) |
-		BIT(NL80211_IFTYPE_MESH_POINT);
-
-	hw->extra_tx_headroom = 2;
-	hw->channel_change_time = 5000;
-	sc = hw->priv;
-	sc->hw = hw;
-	sc->pdev = pdev;
-
-	ath5k_debug_init_device(sc);
-
-	/*
-	 * Mark the device as detached to avoid processing
-	 * interrupts until setup is complete.
-	 */
-	__set_bit(ATH_STAT_INVALID, sc->status);
-
-	sc->iobase = mem; /* So we can unmap it on detach */
-	sc->opmode = NL80211_IFTYPE_STATION;
-	sc->bintval = 1000;
-	mutex_init(&sc->lock);
-	spin_lock_init(&sc->rxbuflock);
-	spin_lock_init(&sc->txbuflock);
-	spin_lock_init(&sc->block);
-
-	/* Set private data */
-	pci_set_drvdata(pdev, sc);
-
-	/* Setup interrupt handler */
-	ret = request_irq(pdev->irq, ath5k_intr, IRQF_SHARED, "ath", sc);
-	if (ret) {
-		ATH5K_ERR(sc, "request_irq failed\n");
-		goto err_free;
-	}
-
-	/* If we passed the test, malloc an ath5k_hw struct */
-	sc->ah = kzalloc(sizeof(struct ath5k_hw), GFP_KERNEL);
-	if (!sc->ah) {
-		ret = -ENOMEM;
-		ATH5K_ERR(sc, "out of memory\n");
-		goto err_irq;
-	}
-
-	sc->ah->ah_sc = sc;
-	sc->ah->ah_iobase = sc->iobase;
-	common = ath5k_hw_common(sc->ah);
-	common->ops = &ath5k_common_ops;
-	common->ah = sc->ah;
-	common->hw = hw;
-	common->cachelsz = csz << 2; /* convert to bytes */
-
-	/* Initialize device */
-	ret = ath5k_hw_attach(sc);
-	if (ret) {
-		goto err_free_ah;
-	}
-
-	/* set up multi-rate retry capabilities */
-	if (sc->ah->ah_version == AR5K_AR5212) {
-		hw->max_rates = 4;
-		hw->max_rate_tries = 11;
-	}
-
-	/* Finish private driver data initialization */
-	ret = ath5k_attach(pdev, hw);
-	if (ret)
-		goto err_ah;
-
-	ATH5K_INFO(sc, "Atheros AR%s chip found (MAC: 0x%x, PHY: 0x%x)\n",
-			ath5k_chip_name(AR5K_VERSION_MAC, sc->ah->ah_mac_srev),
-					sc->ah->ah_mac_srev,
-					sc->ah->ah_phy_revision);
-
-	if (!sc->ah->ah_single_chip) {
-		/* Single chip radio (!RF5111) */
-		if (sc->ah->ah_radio_5ghz_revision &&
-			!sc->ah->ah_radio_2ghz_revision) {
-			/* No 5GHz support -> report 2GHz radio */
-			if (!test_bit(AR5K_MODE_11A,
-				sc->ah->ah_capabilities.cap_mode)) {
-				ATH5K_INFO(sc, "RF%s 2GHz radio found (0x%x)\n",
-					ath5k_chip_name(AR5K_VERSION_RAD,
-						sc->ah->ah_radio_5ghz_revision),
-						sc->ah->ah_radio_5ghz_revision);
-			/* No 2GHz support (5110 and some
-			 * 5Ghz only cards) -> report 5Ghz radio */
-			} else if (!test_bit(AR5K_MODE_11B,
-				sc->ah->ah_capabilities.cap_mode)) {
-				ATH5K_INFO(sc, "RF%s 5GHz radio found (0x%x)\n",
-					ath5k_chip_name(AR5K_VERSION_RAD,
-						sc->ah->ah_radio_5ghz_revision),
-						sc->ah->ah_radio_5ghz_revision);
-			/* Multiband radio */
-			} else {
-				ATH5K_INFO(sc, "RF%s multiband radio found"
-					" (0x%x)\n",
-					ath5k_chip_name(AR5K_VERSION_RAD,
-						sc->ah->ah_radio_5ghz_revision),
-						sc->ah->ah_radio_5ghz_revision);
-			}
-		}
-		/* Multi chip radio (RF5111 - RF2111) ->
-		 * report both 2GHz/5GHz radios */
-		else if (sc->ah->ah_radio_5ghz_revision &&
-				sc->ah->ah_radio_2ghz_revision){
-			ATH5K_INFO(sc, "RF%s 5GHz radio found (0x%x)\n",
-				ath5k_chip_name(AR5K_VERSION_RAD,
-					sc->ah->ah_radio_5ghz_revision),
-					sc->ah->ah_radio_5ghz_revision);
-			ATH5K_INFO(sc, "RF%s 2GHz radio found (0x%x)\n",
-				ath5k_chip_name(AR5K_VERSION_RAD,
-					sc->ah->ah_radio_2ghz_revision),
-					sc->ah->ah_radio_2ghz_revision);
-		}
-	}
-
-
-	/* ready to process interrupts */
-	__clear_bit(ATH_STAT_INVALID, sc->status);
-
-	return 0;
-err_ah:
-	ath5k_hw_detach(sc->ah);
-err_free_ah:
-	kfree(sc->ah);
-err_irq:
-	free_irq(pdev->irq, sc);
-err_free:
-	ieee80211_free_hw(hw);
-err_map:
-	pci_iounmap(pdev, mem);
-err_reg:
-	pci_release_region(pdev, 0);
-err_dis:
-	pci_disable_device(pdev);
-err:
-	return ret;
-}
-
-static void __devexit
-ath5k_pci_remove(struct pci_dev *pdev)
-{
-	struct ath5k_softc *sc = pci_get_drvdata(pdev);
-
-	ath5k_debug_finish_device(sc);
-	ath5k_detach(pdev, sc->hw);
-	ath5k_hw_detach(sc->ah);
-	kfree(sc->ah);
-	free_irq(pdev->irq, sc);
-	pci_iounmap(pdev, sc->iobase);
-	pci_release_region(pdev, 0);
-	pci_disable_device(pdev);
-	ieee80211_free_hw(sc->hw);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int ath5k_pci_suspend(struct device *dev)
-{
-	struct ath5k_softc *sc = pci_get_drvdata(to_pci_dev(dev));
-
-	ath5k_led_off(sc);
-	return 0;
-}
-
-static int ath5k_pci_resume(struct device *dev)
-{
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct ath5k_softc *sc = pci_get_drvdata(pdev);
-
-	/*
-	 * Suspend/Resume resets the PCI configuration space, so we have to
-	 * re-disable the RETRY_TIMEOUT register (0x41) to keep
-	 * PCI Tx retries from interfering with C3 CPU state
-	 */
-	pci_write_config_byte(pdev, 0x41, 0);
-
-	ath5k_led_enable(sc);
-	return 0;
-}
-#endif /* CONFIG_PM_SLEEP */
-
-
 /***********************\
 * Driver Initialization *
 \***********************/
@@ -772,170 +282,6 @@ static int ath5k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *re
 	return ath_reg_notifier_apply(wiphy, request, regulatory);
 }
 
-static int
-ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
-{
-	struct ath5k_softc *sc = hw->priv;
-	struct ath5k_hw *ah = sc->ah;
-	struct ath_regulatory *regulatory = ath5k_hw_regulatory(ah);
-	u8 mac[ETH_ALEN] = {};
-	int ret;
-
-	ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "devid 0x%x\n", pdev->device);
-
-	/*
-	 * Check if the MAC has multi-rate retry support.
-	 * We do this by trying to setup a fake extended
-	 * descriptor.  MACs that don't have support will
-	 * return false w/o doing anything.  MACs that do
-	 * support it will return true w/o doing anything.
-	 */
-	ret = ath5k_hw_setup_mrr_tx_desc(ah, NULL, 0, 0, 0, 0, 0, 0);
-
-	if (ret < 0)
-		goto err;
-	if (ret > 0)
-		__set_bit(ATH_STAT_MRRETRY, sc->status);
-
-	/*
-	 * Collect the channel list.  The 802.11 layer
-	 * is resposible for filtering this list based
-	 * on settings like the phy mode and regulatory
-	 * domain restrictions.
-	 */
-	ret = ath5k_setup_bands(hw);
-	if (ret) {
-		ATH5K_ERR(sc, "can't get channels\n");
-		goto err;
-	}
-
-	/* NB: setup here so ath5k_rate_update is happy */
-	if (test_bit(AR5K_MODE_11A, ah->ah_modes))
-		ath5k_setcurmode(sc, AR5K_MODE_11A);
-	else
-		ath5k_setcurmode(sc, AR5K_MODE_11B);
-
-	/*
-	 * Allocate tx+rx descriptors and populate the lists.
-	 */
-	ret = ath5k_desc_alloc(sc, pdev);
-	if (ret) {
-		ATH5K_ERR(sc, "can't allocate descriptors\n");
-		goto err;
-	}
-
-	/*
-	 * Allocate hardware transmit queues: one queue for
-	 * beacon frames and one data queue for each QoS
-	 * priority.  Note that hw functions handle resetting
-	 * these queues at the needed time.
-	 */
-	ret = ath5k_beaconq_setup(ah);
-	if (ret < 0) {
-		ATH5K_ERR(sc, "can't setup a beacon xmit queue\n");
-		goto err_desc;
-	}
-	sc->bhalq = ret;
-	sc->cabq = ath5k_txq_setup(sc, AR5K_TX_QUEUE_CAB, 0);
-	if (IS_ERR(sc->cabq)) {
-		ATH5K_ERR(sc, "can't setup cab queue\n");
-		ret = PTR_ERR(sc->cabq);
-		goto err_bhal;
-	}
-
-	sc->txq = ath5k_txq_setup(sc, AR5K_TX_QUEUE_DATA, AR5K_WME_AC_BK);
-	if (IS_ERR(sc->txq)) {
-		ATH5K_ERR(sc, "can't setup xmit queue\n");
-		ret = PTR_ERR(sc->txq);
-		goto err_queues;
-	}
-
-	tasklet_init(&sc->rxtq, ath5k_tasklet_rx, (unsigned long)sc);
-	tasklet_init(&sc->txtq, ath5k_tasklet_tx, (unsigned long)sc);
-	tasklet_init(&sc->calib, ath5k_tasklet_calibrate, (unsigned long)sc);
-	tasklet_init(&sc->beacontq, ath5k_tasklet_beacon, (unsigned long)sc);
-	tasklet_init(&sc->ani_tasklet, ath5k_tasklet_ani, (unsigned long)sc);
-
-	INIT_WORK(&sc->reset_work, ath5k_reset_work);
-
-	ret = ath5k_eeprom_read_mac(ah, mac);
-	if (ret) {
-		ATH5K_ERR(sc, "unable to read address from EEPROM: 0x%04x\n",
-			sc->pdev->device);
-		goto err_queues;
-	}
-
-	SET_IEEE80211_PERM_ADDR(hw, mac);
-	/* All MAC address bits matter for ACKs */
-	memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN);
-	ath5k_hw_set_bssid_mask(sc->ah, sc->bssidmask);
-
-	regulatory->current_rd = ah->ah_capabilities.cap_eeprom.ee_regdomain;
-	ret = ath_regd_init(regulatory, hw->wiphy, ath5k_reg_notifier);
-	if (ret) {
-		ATH5K_ERR(sc, "can't initialize regulatory system\n");
-		goto err_queues;
-	}
-
-	ret = ieee80211_register_hw(hw);
-	if (ret) {
-		ATH5K_ERR(sc, "can't register ieee80211 hw\n");
-		goto err_queues;
-	}
-
-	if (!ath_is_world_regd(regulatory))
-		regulatory_hint(hw->wiphy, regulatory->alpha2);
-
-	ath5k_init_leds(sc);
-
-	ath5k_sysfs_register(sc);
-
-	return 0;
-err_queues:
-	ath5k_txq_release(sc);
-err_bhal:
-	ath5k_hw_release_tx_queue(ah, sc->bhalq);
-err_desc:
-	ath5k_desc_free(sc, pdev);
-err:
-	return ret;
-}
-
-static void
-ath5k_detach(struct pci_dev *pdev, struct ieee80211_hw *hw)
-{
-	struct ath5k_softc *sc = hw->priv;
-
-	/*
-	 * NB: the order of these is important:
-	 * o call the 802.11 layer before detaching ath5k_hw to
-	 *   ensure callbacks into the driver to delete global
-	 *   key cache entries can be handled
-	 * o reclaim the tx queue data structures after calling
-	 *   the 802.11 layer as we'll get called back to reclaim
-	 *   node state and potentially want to use them
-	 * o to cleanup the tx queues the hal is called, so detach
-	 *   it last
-	 * XXX: ??? detach ath5k_hw ???
-	 * Other than that, it's straightforward...
-	 */
-	ieee80211_unregister_hw(hw);
-	ath5k_desc_free(sc, pdev);
-	ath5k_txq_release(sc);
-	ath5k_hw_release_tx_queue(sc->ah, sc->bhalq);
-	ath5k_unregister_leds(sc);
-
-	ath5k_sysfs_unregister(sc);
-	/*
-	 * NB: can't reclaim these until after ieee80211_ifdetach
-	 * returns because we'll get called back to reclaim node
-	 * state and potentially want to use them.
-	 */
-}
-
-
-
-
 /********************\
 * Channel/mode setup *
 \********************/
@@ -1494,9 +840,6 @@ ath5k_desc_free(struct ath5k_softc *sc, struct pci_dev *pdev)
 }
 
 
-
-
-
 /**************\
 * Queues setup *
 \**************/
@@ -1696,8 +1039,6 @@ ath5k_txq_release(struct ath5k_softc *sc)
 }
 
 
-
-
 /*************\
 * RX Handling *
 \*************/
@@ -2121,6 +1462,59 @@ unlock:
 * TX Handling *
 \*************/
 
+static int ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
+			  struct ath5k_txq *txq)
+{
+	struct ath5k_softc *sc = hw->priv;
+	struct ath5k_buf *bf;
+	unsigned long flags;
+	int padsize;
+
+	ath5k_debug_dump_skb(sc, skb, "TX  ", 1);
+
+	/*
+	 * The hardware expects the header padded to 4 byte boundaries.
+	 * If this is not the case, we add the padding after the header.
+	 */
+	padsize = ath5k_add_padding(skb);
+	if (padsize < 0) {
+		ATH5K_ERR(sc, "tx hdrlen not %%4: not enough"
+			  " headroom to pad");
+		goto drop_packet;
+	}
+
+	spin_lock_irqsave(&sc->txbuflock, flags);
+	if (list_empty(&sc->txbuf)) {
+		ATH5K_ERR(sc, "no further txbuf available, dropping packet\n");
+		spin_unlock_irqrestore(&sc->txbuflock, flags);
+		ieee80211_stop_queue(hw, skb_get_queue_mapping(skb));
+		goto drop_packet;
+	}
+	bf = list_first_entry(&sc->txbuf, struct ath5k_buf, list);
+	list_del(&bf->list);
+	sc->txbuf_len--;
+	if (list_empty(&sc->txbuf))
+		ieee80211_stop_queues(hw);
+	spin_unlock_irqrestore(&sc->txbuflock, flags);
+
+	bf->skb = skb;
+
+	if (ath5k_txbuf_setup(sc, bf, txq, padsize)) {
+		bf->skb = NULL;
+		spin_lock_irqsave(&sc->txbuflock, flags);
+		list_add_tail(&bf->list, &sc->txbuf);
+		sc->txbuf_len++;
+		spin_unlock_irqrestore(&sc->txbuflock, flags);
+		goto drop_packet;
+	}
+	return NETDEV_TX_OK;
+
+drop_packet:
+	dev_kfree_skb_any(skb);
+	return NETDEV_TX_OK;
+}
+
+
 static void
 ath5k_tx_processq(struct ath5k_softc *sc, struct ath5k_txq *txq)
 {
@@ -2313,6 +1707,43 @@ err_unmap:
 }
 
 /*
+ * Updates the beacon that is sent by ath5k_beacon_send.  For adhoc,
+ * this is called only once at config_bss time, for AP we do it every
+ * SWBA interrupt so that the TIM will reflect buffered frames.
+ *
+ * Called with the beacon lock.
+ */
+static int
+ath5k_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	int ret;
+	struct ath5k_softc *sc = hw->priv;
+	struct sk_buff *skb;
+
+	if (WARN_ON(!vif)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	skb = ieee80211_beacon_get(hw, vif);
+
+	if (!skb) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ath5k_debug_dump_skb(sc, skb, "BC  ", 1);
+
+	ath5k_txbuf_free_skb(sc, sc->bbuf);
+	sc->bbuf->skb = skb;
+	ret = ath5k_beacon_setup(sc, sc->bbuf);
+	if (ret)
+		sc->bbuf->skb = NULL;
+out:
+	return ret;
+}
+
+/*
  * Transmit a beacon frame at SWBA.  Dynamic updates to the
  * frame contents are done as needed and the slot time is
  * also adjusted based on current state.
@@ -2389,7 +1820,6 @@ ath5k_beacon_send(struct ath5k_softc *sc)
 	sc->bsent++;
 }
 
-
 /**
  * ath5k_beacon_update_timers - update beacon timers
  *
@@ -2491,7 +1921,6 @@ ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf)
 		intval & AR5K_BEACON_RESET_TSF ? "AR5K_BEACON_RESET_TSF" : "");
 }
 
-
 /**
  * ath5k_beacon_config - Configure the beacon queues and interrupts
  *
@@ -2570,156 +1999,6 @@ static void ath5k_tasklet_beacon(unsigned long data)
 * Interrupt handling *
 \********************/
 
-static int
-ath5k_init(struct ath5k_softc *sc)
-{
-	struct ath5k_hw *ah = sc->ah;
-	struct ath_common *common = ath5k_hw_common(ah);
-	int ret, i;
-
-	mutex_lock(&sc->lock);
-
-	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "mode %d\n", sc->opmode);
-
-	/*
-	 * Stop anything previously setup.  This is safe
-	 * no matter this is the first time through or not.
-	 */
-	ath5k_stop_locked(sc);
-
-	/*
-	 * The basic interface to setting the hardware in a good
-	 * state is ``reset''.  On return the hardware is known to
-	 * be powered up and with interrupts disabled.  This must
-	 * be followed by initialization of the appropriate bits
-	 * and then setup of the interrupt mask.
-	 */
-	sc->curchan = sc->hw->conf.channel;
-	sc->curband = &sc->sbands[sc->curchan->band];
-	sc->imask = AR5K_INT_RXOK | AR5K_INT_RXERR | AR5K_INT_RXEOL |
-		AR5K_INT_RXORN | AR5K_INT_TXDESC | AR5K_INT_TXEOL |
-		AR5K_INT_FATAL | AR5K_INT_GLOBAL | AR5K_INT_MIB;
-
-	ret = ath5k_reset(sc, NULL);
-	if (ret)
-		goto done;
-
-	ath5k_rfkill_hw_start(ah);
-
-	/*
-	 * Reset the key cache since some parts do not reset the
-	 * contents on initial power up or resume from suspend.
-	 */
-	for (i = 0; i < common->keymax; i++)
-		ath_hw_keyreset(common, (u16)i);
-
-	ath5k_hw_set_ack_bitrate_high(ah, true);
-	ret = 0;
-done:
-	mmiowb();
-	mutex_unlock(&sc->lock);
-	return ret;
-}
-
-static int
-ath5k_stop_locked(struct ath5k_softc *sc)
-{
-	struct ath5k_hw *ah = sc->ah;
-
-	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "invalid %u\n",
-			test_bit(ATH_STAT_INVALID, sc->status));
-
-	/*
-	 * Shutdown the hardware and driver:
-	 *    stop output from above
-	 *    disable interrupts
-	 *    turn off timers
-	 *    turn off the radio
-	 *    clear transmit machinery
-	 *    clear receive machinery
-	 *    drain and release tx queues
-	 *    reclaim beacon resources
-	 *    power down hardware
-	 *
-	 * Note that some of this work is not possible if the
-	 * hardware is gone (invalid).
-	 */
-	ieee80211_stop_queues(sc->hw);
-
-	if (!test_bit(ATH_STAT_INVALID, sc->status)) {
-		ath5k_led_off(sc);
-		ath5k_hw_set_imr(ah, 0);
-		synchronize_irq(sc->pdev->irq);
-	}
-	ath5k_txq_cleanup(sc);
-	if (!test_bit(ATH_STAT_INVALID, sc->status)) {
-		ath5k_rx_stop(sc);
-		ath5k_hw_phy_disable(ah);
-	}
-
-	return 0;
-}
-
-static void stop_tasklets(struct ath5k_softc *sc)
-{
-	tasklet_kill(&sc->rxtq);
-	tasklet_kill(&sc->txtq);
-	tasklet_kill(&sc->calib);
-	tasklet_kill(&sc->beacontq);
-	tasklet_kill(&sc->ani_tasklet);
-}
-
-/*
- * Stop the device, grabbing the top-level lock to protect
- * against concurrent entry through ath5k_init (which can happen
- * if another thread does a system call and the thread doing the
- * stop is preempted).
- */
-static int
-ath5k_stop_hw(struct ath5k_softc *sc)
-{
-	int ret;
-
-	mutex_lock(&sc->lock);
-	ret = ath5k_stop_locked(sc);
-	if (ret == 0 && !test_bit(ATH_STAT_INVALID, sc->status)) {
-		/*
-		 * Don't set the card in full sleep mode!
-		 *
-		 * a) When the device is in this state it must be carefully
-		 * woken up or references to registers in the PCI clock
-		 * domain may freeze the bus (and system).  This varies
-		 * by chip and is mostly an issue with newer parts
-		 * (madwifi sources mentioned srev >= 0x78) that go to
-		 * sleep more quickly.
-		 *
-		 * b) On older chips full sleep results a weird behaviour
-		 * during wakeup. I tested various cards with srev < 0x78
-		 * and they don't wake up after module reload, a second
-		 * module reload is needed to bring the card up again.
-		 *
-		 * Until we figure out what's going on don't enable
-		 * full chip reset on any chip (this is what Legacy HAL
-		 * and Sam's HAL do anyway). Instead Perform a full reset
-		 * on the device (same as initial state after attach) and
-		 * leave it idle (keep MAC/BB on warm reset) */
-		ret = ath5k_hw_on_hold(sc->ah);
-
-		ATH5K_DBG(sc, ATH5K_DEBUG_RESET,
-				"putting device to sleep\n");
-	}
-	ath5k_txbuf_free_skb(sc, sc->bbuf);
-
-	mmiowb();
-	mutex_unlock(&sc->lock);
-
-	stop_tasklets(sc);
-
-	ath5k_rfkill_hw_stop(sc->ah);
-
-	return ret;
-}
-
 static void
 ath5k_intr_calibration_poll(struct ath5k_hw *ah)
 {
@@ -2882,68 +2161,158 @@ ath5k_tasklet_ani(unsigned long data)
 }
 
 
-/********************\
-* Mac80211 functions *
-\********************/
+/*************************\
+* Initialization routines *
+\*************************/
 
 static int
-ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+ath5k_stop_locked(struct ath5k_softc *sc)
 {
-	struct ath5k_softc *sc = hw->priv;
+	struct ath5k_hw *ah = sc->ah;
 
-	return ath5k_tx_queue(hw, skb, sc->txq);
+	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "invalid %u\n",
+			test_bit(ATH_STAT_INVALID, sc->status));
+
+	/*
+	 * Shutdown the hardware and driver:
+	 *    stop output from above
+	 *    disable interrupts
+	 *    turn off timers
+	 *    turn off the radio
+	 *    clear transmit machinery
+	 *    clear receive machinery
+	 *    drain and release tx queues
+	 *    reclaim beacon resources
+	 *    power down hardware
+	 *
+	 * Note that some of this work is not possible if the
+	 * hardware is gone (invalid).
+	 */
+	ieee80211_stop_queues(sc->hw);
+
+	if (!test_bit(ATH_STAT_INVALID, sc->status)) {
+		ath5k_led_off(sc);
+		ath5k_hw_set_imr(ah, 0);
+		synchronize_irq(sc->pdev->irq);
+	}
+	ath5k_txq_cleanup(sc);
+	if (!test_bit(ATH_STAT_INVALID, sc->status)) {
+		ath5k_rx_stop(sc);
+		ath5k_hw_phy_disable(ah);
+	}
+
+	return 0;
 }
 
-static int ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
-			  struct ath5k_txq *txq)
+static int
+ath5k_init(struct ath5k_softc *sc)
 {
-	struct ath5k_softc *sc = hw->priv;
-	struct ath5k_buf *bf;
-	unsigned long flags;
-	int padsize;
+	struct ath5k_hw *ah = sc->ah;
+	struct ath_common *common = ath5k_hw_common(ah);
+	int ret, i;
 
-	ath5k_debug_dump_skb(sc, skb, "TX  ", 1);
+	mutex_lock(&sc->lock);
+
+	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "mode %d\n", sc->opmode);
 
 	/*
-	 * The hardware expects the header padded to 4 byte boundaries.
-	 * If this is not the case, we add the padding after the header.
+	 * Stop anything previously setup.  This is safe
+	 * no matter this is the first time through or not.
 	 */
-	padsize = ath5k_add_padding(skb);
-	if (padsize < 0) {
-		ATH5K_ERR(sc, "tx hdrlen not %%4: not enough"
-			  " headroom to pad");
-		goto drop_packet;
-	}
+	ath5k_stop_locked(sc);
 
-	spin_lock_irqsave(&sc->txbuflock, flags);
-	if (list_empty(&sc->txbuf)) {
-		ATH5K_ERR(sc, "no further txbuf available, dropping packet\n");
-		spin_unlock_irqrestore(&sc->txbuflock, flags);
-		ieee80211_stop_queue(hw, skb_get_queue_mapping(skb));
-		goto drop_packet;
-	}
-	bf = list_first_entry(&sc->txbuf, struct ath5k_buf, list);
-	list_del(&bf->list);
-	sc->txbuf_len--;
-	if (list_empty(&sc->txbuf))
-		ieee80211_stop_queues(hw);
-	spin_unlock_irqrestore(&sc->txbuflock, flags);
+	/*
+	 * The basic interface to setting the hardware in a good
+	 * state is ``reset''.  On return the hardware is known to
+	 * be powered up and with interrupts disabled.  This must
+	 * be followed by initialization of the appropriate bits
+	 * and then setup of the interrupt mask.
+	 */
+	sc->curchan = sc->hw->conf.channel;
+	sc->curband = &sc->sbands[sc->curchan->band];
+	sc->imask = AR5K_INT_RXOK | AR5K_INT_RXERR | AR5K_INT_RXEOL |
+		AR5K_INT_RXORN | AR5K_INT_TXDESC | AR5K_INT_TXEOL |
+		AR5K_INT_FATAL | AR5K_INT_GLOBAL | AR5K_INT_MIB;
 
-	bf->skb = skb;
+	ret = ath5k_reset(sc, NULL);
+	if (ret)
+		goto done;
 
-	if (ath5k_txbuf_setup(sc, bf, txq, padsize)) {
-		bf->skb = NULL;
-		spin_lock_irqsave(&sc->txbuflock, flags);
-		list_add_tail(&bf->list, &sc->txbuf);
-		sc->txbuf_len++;
-		spin_unlock_irqrestore(&sc->txbuflock, flags);
-		goto drop_packet;
+	ath5k_rfkill_hw_start(ah);
+
+	/*
+	 * Reset the key cache since some parts do not reset the
+	 * contents on initial power up or resume from suspend.
+	 */
+	for (i = 0; i < common->keymax; i++)
+		ath_hw_keyreset(common, (u16) i);
+
+	ath5k_hw_set_ack_bitrate_high(ah, true);
+	ret = 0;
+done:
+	mmiowb();
+	mutex_unlock(&sc->lock);
+	return ret;
+}
+
+static void stop_tasklets(struct ath5k_softc *sc)
+{
+	tasklet_kill(&sc->rxtq);
+	tasklet_kill(&sc->txtq);
+	tasklet_kill(&sc->calib);
+	tasklet_kill(&sc->beacontq);
+	tasklet_kill(&sc->ani_tasklet);
+}
+
+/*
+ * Stop the device, grabbing the top-level lock to protect
+ * against concurrent entry through ath5k_init (which can happen
+ * if another thread does a system call and the thread doing the
+ * stop is preempted).
+ */
+static int
+ath5k_stop_hw(struct ath5k_softc *sc)
+{
+	int ret;
+
+	mutex_lock(&sc->lock);
+	ret = ath5k_stop_locked(sc);
+	if (ret == 0 && !test_bit(ATH_STAT_INVALID, sc->status)) {
+		/*
+		 * Don't set the card in full sleep mode!
+		 *
+		 * a) When the device is in this state it must be carefully
+		 * woken up or references to registers in the PCI clock
+		 * domain may freeze the bus (and system).  This varies
+		 * by chip and is mostly an issue with newer parts
+		 * (madwifi sources mentioned srev >= 0x78) that go to
+		 * sleep more quickly.
+		 *
+		 * b) On older chips full sleep results a weird behaviour
+		 * during wakeup. I tested various cards with srev < 0x78
+		 * and they don't wake up after module reload, a second
+		 * module reload is needed to bring the card up again.
+		 *
+		 * Until we figure out what's going on don't enable
+		 * full chip reset on any chip (this is what Legacy HAL
+		 * and Sam's HAL do anyway). Instead Perform a full reset
+		 * on the device (same as initial state after attach) and
+		 * leave it idle (keep MAC/BB on warm reset) */
+		ret = ath5k_hw_on_hold(sc->ah);
+
+		ATH5K_DBG(sc, ATH5K_DEBUG_RESET,
+				"putting device to sleep\n");
 	}
-	return NETDEV_TX_OK;
+	ath5k_txbuf_free_skb(sc, sc->bbuf);
 
-drop_packet:
-	dev_kfree_skb_any(skb);
-	return NETDEV_TX_OK;
+	mmiowb();
+	mutex_unlock(&sc->lock);
+
+	stop_tasklets(sc);
+
+	ath5k_rfkill_hw_stop(sc->ah);
+
+	return ret;
 }
 
 /*
@@ -3020,6 +2389,179 @@ static void ath5k_reset_work(struct work_struct *work)
 	mutex_unlock(&sc->lock);
 }
 
+static int
+ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
+{
+	struct ath5k_softc *sc = hw->priv;
+	struct ath5k_hw *ah = sc->ah;
+	struct ath_regulatory *regulatory = ath5k_hw_regulatory(ah);
+	u8 mac[ETH_ALEN] = {};
+	int ret;
+
+	ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "devid 0x%x\n", pdev->device);
+
+	/*
+	 * Check if the MAC has multi-rate retry support.
+	 * We do this by trying to setup a fake extended
+	 * descriptor.  MACs that don't have support will
+	 * return false w/o doing anything.  MACs that do
+	 * support it will return true w/o doing anything.
+	 */
+	ret = ath5k_hw_setup_mrr_tx_desc(ah, NULL, 0, 0, 0, 0, 0, 0);
+
+	if (ret < 0)
+		goto err;
+	if (ret > 0)
+		__set_bit(ATH_STAT_MRRETRY, sc->status);
+
+	/*
+	 * Collect the channel list.  The 802.11 layer
+	 * is resposible for filtering this list based
+	 * on settings like the phy mode and regulatory
+	 * domain restrictions.
+	 */
+	ret = ath5k_setup_bands(hw);
+	if (ret) {
+		ATH5K_ERR(sc, "can't get channels\n");
+		goto err;
+	}
+
+	/* NB: setup here so ath5k_rate_update is happy */
+	if (test_bit(AR5K_MODE_11A, ah->ah_modes))
+		ath5k_setcurmode(sc, AR5K_MODE_11A);
+	else
+		ath5k_setcurmode(sc, AR5K_MODE_11B);
+
+	/*
+	 * Allocate tx+rx descriptors and populate the lists.
+	 */
+	ret = ath5k_desc_alloc(sc, pdev);
+	if (ret) {
+		ATH5K_ERR(sc, "can't allocate descriptors\n");
+		goto err;
+	}
+
+	/*
+	 * Allocate hardware transmit queues: one queue for
+	 * beacon frames and one data queue for each QoS
+	 * priority.  Note that hw functions handle resetting
+	 * these queues at the needed time.
+	 */
+	ret = ath5k_beaconq_setup(ah);
+	if (ret < 0) {
+		ATH5K_ERR(sc, "can't setup a beacon xmit queue\n");
+		goto err_desc;
+	}
+	sc->bhalq = ret;
+	sc->cabq = ath5k_txq_setup(sc, AR5K_TX_QUEUE_CAB, 0);
+	if (IS_ERR(sc->cabq)) {
+		ATH5K_ERR(sc, "can't setup cab queue\n");
+		ret = PTR_ERR(sc->cabq);
+		goto err_bhal;
+	}
+
+	sc->txq = ath5k_txq_setup(sc, AR5K_TX_QUEUE_DATA, AR5K_WME_AC_BK);
+	if (IS_ERR(sc->txq)) {
+		ATH5K_ERR(sc, "can't setup xmit queue\n");
+		ret = PTR_ERR(sc->txq);
+		goto err_queues;
+	}
+
+	tasklet_init(&sc->rxtq, ath5k_tasklet_rx, (unsigned long)sc);
+	tasklet_init(&sc->txtq, ath5k_tasklet_tx, (unsigned long)sc);
+	tasklet_init(&sc->calib, ath5k_tasklet_calibrate, (unsigned long)sc);
+	tasklet_init(&sc->beacontq, ath5k_tasklet_beacon, (unsigned long)sc);
+	tasklet_init(&sc->ani_tasklet, ath5k_tasklet_ani, (unsigned long)sc);
+
+	INIT_WORK(&sc->reset_work, ath5k_reset_work);
+
+	ret = ath5k_eeprom_read_mac(ah, mac);
+	if (ret) {
+		ATH5K_ERR(sc, "unable to read address from EEPROM: 0x%04x\n",
+			sc->pdev->device);
+		goto err_queues;
+	}
+
+	SET_IEEE80211_PERM_ADDR(hw, mac);
+	/* All MAC address bits matter for ACKs */
+	memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN);
+	ath5k_hw_set_bssid_mask(sc->ah, sc->bssidmask);
+
+	regulatory->current_rd = ah->ah_capabilities.cap_eeprom.ee_regdomain;
+	ret = ath_regd_init(regulatory, hw->wiphy, ath5k_reg_notifier);
+	if (ret) {
+		ATH5K_ERR(sc, "can't initialize regulatory system\n");
+		goto err_queues;
+	}
+
+	ret = ieee80211_register_hw(hw);
+	if (ret) {
+		ATH5K_ERR(sc, "can't register ieee80211 hw\n");
+		goto err_queues;
+	}
+
+	if (!ath_is_world_regd(regulatory))
+		regulatory_hint(hw->wiphy, regulatory->alpha2);
+
+	ath5k_init_leds(sc);
+
+	ath5k_sysfs_register(sc);
+
+	return 0;
+err_queues:
+	ath5k_txq_release(sc);
+err_bhal:
+	ath5k_hw_release_tx_queue(ah, sc->bhalq);
+err_desc:
+	ath5k_desc_free(sc, pdev);
+err:
+	return ret;
+}
+
+static void
+ath5k_detach(struct pci_dev *pdev, struct ieee80211_hw *hw)
+{
+	struct ath5k_softc *sc = hw->priv;
+
+	/*
+	 * NB: the order of these is important:
+	 * o call the 802.11 layer before detaching ath5k_hw to
+	 *   ensure callbacks into the driver to delete global
+	 *   key cache entries can be handled
+	 * o reclaim the tx queue data structures after calling
+	 *   the 802.11 layer as we'll get called back to reclaim
+	 *   node state and potentially want to use them
+	 * o to cleanup the tx queues the hal is called, so detach
+	 *   it last
+	 * XXX: ??? detach ath5k_hw ???
+	 * Other than that, it's straightforward...
+	 */
+	ieee80211_unregister_hw(hw);
+	ath5k_desc_free(sc, pdev);
+	ath5k_txq_release(sc);
+	ath5k_hw_release_tx_queue(sc->ah, sc->bhalq);
+	ath5k_unregister_leds(sc);
+
+	ath5k_sysfs_unregister(sc);
+	/*
+	 * NB: can't reclaim these until after ieee80211_ifdetach
+	 * returns because we'll get called back to reclaim node
+	 * state and potentially want to use them.
+	 */
+}
+
+/********************\
+* Mac80211 functions *
+\********************/
+
+static int
+ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+	struct ath5k_softc *sc = hw->priv;
+
+	return ath5k_tx_queue(hw, skb, sc->txq);
+}
+
 static int ath5k_start(struct ieee80211_hw *hw)
 {
 	return ath5k_init(hw->priv);
@@ -3398,43 +2940,6 @@ ath5k_reset_tsf(struct ieee80211_hw *hw)
 		ath5k_hw_reset_tsf(sc->ah);
 }
 
-/*
- * Updates the beacon that is sent by ath5k_beacon_send.  For adhoc,
- * this is called only once at config_bss time, for AP we do it every
- * SWBA interrupt so that the TIM will reflect buffered frames.
- *
- * Called with the beacon lock.
- */
-static int
-ath5k_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
-	int ret;
-	struct ath5k_softc *sc = hw->priv;
-	struct sk_buff *skb;
-
-	if (WARN_ON(!vif)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	skb = ieee80211_beacon_get(hw, vif);
-
-	if (!skb) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	ath5k_debug_dump_skb(sc, skb, "BC  ", 1);
-
-	ath5k_txbuf_free_skb(sc, sc->bbuf);
-	sc->bbuf->skb = skb;
-	ret = ath5k_beacon_setup(sc, sc->bbuf);
-	if (ret)
-		sc->bbuf->skb = NULL;
-out:
-	return ret;
-}
-
 static void
 set_beacon_filter(struct ieee80211_hw *hw, bool enable)
 {
@@ -3540,3 +3045,364 @@ static void ath5k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
 	ath5k_hw_set_coverage_class(sc->ah, coverage_class);
 	mutex_unlock(&sc->lock);
 }
+
+static const struct ieee80211_ops ath5k_hw_ops = {
+	.tx 		= ath5k_tx,
+	.start 		= ath5k_start,
+	.stop 		= ath5k_stop,
+	.add_interface 	= ath5k_add_interface,
+	.remove_interface = ath5k_remove_interface,
+	.config 	= ath5k_config,
+	.prepare_multicast = ath5k_prepare_multicast,
+	.configure_filter = ath5k_configure_filter,
+	.set_key 	= ath5k_set_key,
+	.get_stats 	= ath5k_get_stats,
+	.get_survey	= ath5k_get_survey,
+	.conf_tx 	= NULL,
+	.get_tsf 	= ath5k_get_tsf,
+	.set_tsf 	= ath5k_set_tsf,
+	.reset_tsf 	= ath5k_reset_tsf,
+	.bss_info_changed = ath5k_bss_info_changed,
+	.sw_scan_start	= ath5k_sw_scan_start,
+	.sw_scan_complete = ath5k_sw_scan_complete,
+	.set_coverage_class = ath5k_set_coverage_class,
+};
+
+/********************\
+* PCI Initialization *
+\********************/
+
+static int __devinit
+ath5k_pci_probe(struct pci_dev *pdev,
+		const struct pci_device_id *id)
+{
+	void __iomem *mem;
+	struct ath5k_softc *sc;
+	struct ath_common *common;
+	struct ieee80211_hw *hw;
+	int ret;
+	u8 csz;
+
+	/*
+	 * L0s needs to be disabled on all ath5k cards.
+	 *
+	 * For distributions shipping with CONFIG_PCIEASPM (this will be enabled
+	 * by default in the future in 2.6.36) this will also mean both L1 and
+	 * L0s will be disabled when a pre 1.1 PCIe device is detected. We do
+	 * know L1 works correctly even for all ath5k pre 1.1 PCIe devices
+	 * though but cannot currently undue the effect of a blacklist, for
+	 * details you can read pcie_aspm_sanity_check() and see how it adjusts
+	 * the device link capability.
+	 *
+	 * It may be possible in the future to implement some PCI API to allow
+	 * drivers to override blacklists for pre 1.1 PCIe but for now it is
+	 * best to accept that both L0s and L1 will be disabled completely for
+	 * distributions shipping with CONFIG_PCIEASPM rather than having this
+	 * issue present. Motivation for adding this new API will be to help
+	 * with power consumption for some of these devices.
+	 */
+	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S);
+
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "can't enable device\n");
+		goto err;
+	}
+
+	/* XXX 32-bit addressing only */
+	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	if (ret) {
+		dev_err(&pdev->dev, "32-bit DMA not available\n");
+		goto err_dis;
+	}
+
+	/*
+	 * 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 >> 2;
+		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);
+
+	/* Enable bus mastering */
+	pci_set_master(pdev);
+
+	/*
+	 * Disable the RETRY_TIMEOUT register (0x41) to keep
+	 * PCI Tx retries from interfering with C3 CPU state.
+	 */
+	pci_write_config_byte(pdev, 0x41, 0);
+
+	ret = pci_request_region(pdev, 0, "ath5k");
+	if (ret) {
+		dev_err(&pdev->dev, "cannot reserve PCI memory region\n");
+		goto err_dis;
+	}
+
+	mem = pci_iomap(pdev, 0, 0);
+	if (!mem) {
+		dev_err(&pdev->dev, "cannot remap PCI memory region\n") ;
+		ret = -EIO;
+		goto err_reg;
+	}
+
+	/*
+	 * Allocate hw (mac80211 main struct)
+	 * and hw->priv (driver private data)
+	 */
+	hw = ieee80211_alloc_hw(sizeof(*sc), &ath5k_hw_ops);
+	if (hw == NULL) {
+		dev_err(&pdev->dev, "cannot allocate ieee80211_hw\n");
+		ret = -ENOMEM;
+		goto err_map;
+	}
+
+	dev_info(&pdev->dev, "registered as '%s'\n", wiphy_name(hw->wiphy));
+
+	/* Initialize driver private data */
+	SET_IEEE80211_DEV(hw, &pdev->dev);
+	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
+		    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		    IEEE80211_HW_SIGNAL_DBM;
+
+	hw->wiphy->interface_modes =
+		BIT(NL80211_IFTYPE_AP) |
+		BIT(NL80211_IFTYPE_STATION) |
+		BIT(NL80211_IFTYPE_ADHOC) |
+		BIT(NL80211_IFTYPE_MESH_POINT);
+
+	hw->extra_tx_headroom = 2;
+	hw->channel_change_time = 5000;
+	sc = hw->priv;
+	sc->hw = hw;
+	sc->pdev = pdev;
+
+	ath5k_debug_init_device(sc);
+
+	/*
+	 * Mark the device as detached to avoid processing
+	 * interrupts until setup is complete.
+	 */
+	__set_bit(ATH_STAT_INVALID, sc->status);
+
+	sc->iobase = mem; /* So we can unmap it on detach */
+	sc->opmode = NL80211_IFTYPE_STATION;
+	sc->bintval = 1000;
+	mutex_init(&sc->lock);
+	spin_lock_init(&sc->rxbuflock);
+	spin_lock_init(&sc->txbuflock);
+	spin_lock_init(&sc->block);
+
+	/* Set private data */
+	pci_set_drvdata(pdev, sc);
+
+	/* Setup interrupt handler */
+	ret = request_irq(pdev->irq, ath5k_intr, IRQF_SHARED, "ath", sc);
+	if (ret) {
+		ATH5K_ERR(sc, "request_irq failed\n");
+		goto err_free;
+	}
+
+	/* If we passed the test, malloc an ath5k_hw struct */
+	sc->ah = kzalloc(sizeof(struct ath5k_hw), GFP_KERNEL);
+	if (!sc->ah) {
+		ret = -ENOMEM;
+		ATH5K_ERR(sc, "out of memory\n");
+		goto err_irq;
+	}
+
+	sc->ah->ah_sc = sc;
+	sc->ah->ah_iobase = sc->iobase;
+	common = ath5k_hw_common(sc->ah);
+	common->ops = &ath5k_common_ops;
+	common->ah = sc->ah;
+	common->hw = hw;
+	common->cachelsz = csz << 2; /* convert to bytes */
+
+	/* Initialize device */
+	ret = ath5k_hw_attach(sc);
+	if (ret) {
+		goto err_free_ah;
+	}
+
+	/* set up multi-rate retry capabilities */
+	if (sc->ah->ah_version == AR5K_AR5212) {
+		hw->max_rates = 4;
+		hw->max_rate_tries = 11;
+	}
+
+	/* Finish private driver data initialization */
+	ret = ath5k_attach(pdev, hw);
+	if (ret)
+		goto err_ah;
+
+	ATH5K_INFO(sc, "Atheros AR%s chip found (MAC: 0x%x, PHY: 0x%x)\n",
+			ath5k_chip_name(AR5K_VERSION_MAC, sc->ah->ah_mac_srev),
+					sc->ah->ah_mac_srev,
+					sc->ah->ah_phy_revision);
+
+	if (!sc->ah->ah_single_chip) {
+		/* Single chip radio (!RF5111) */
+		if (sc->ah->ah_radio_5ghz_revision &&
+			!sc->ah->ah_radio_2ghz_revision) {
+			/* No 5GHz support -> report 2GHz radio */
+			if (!test_bit(AR5K_MODE_11A,
+				sc->ah->ah_capabilities.cap_mode)) {
+				ATH5K_INFO(sc, "RF%s 2GHz radio found (0x%x)\n",
+					ath5k_chip_name(AR5K_VERSION_RAD,
+						sc->ah->ah_radio_5ghz_revision),
+						sc->ah->ah_radio_5ghz_revision);
+			/* No 2GHz support (5110 and some
+			 * 5Ghz only cards) -> report 5Ghz radio */
+			} else if (!test_bit(AR5K_MODE_11B,
+				sc->ah->ah_capabilities.cap_mode)) {
+				ATH5K_INFO(sc, "RF%s 5GHz radio found (0x%x)\n",
+					ath5k_chip_name(AR5K_VERSION_RAD,
+						sc->ah->ah_radio_5ghz_revision),
+						sc->ah->ah_radio_5ghz_revision);
+			/* Multiband radio */
+			} else {
+				ATH5K_INFO(sc, "RF%s multiband radio found"
+					" (0x%x)\n",
+					ath5k_chip_name(AR5K_VERSION_RAD,
+						sc->ah->ah_radio_5ghz_revision),
+						sc->ah->ah_radio_5ghz_revision);
+			}
+		}
+		/* Multi chip radio (RF5111 - RF2111) ->
+		 * report both 2GHz/5GHz radios */
+		else if (sc->ah->ah_radio_5ghz_revision &&
+				sc->ah->ah_radio_2ghz_revision){
+			ATH5K_INFO(sc, "RF%s 5GHz radio found (0x%x)\n",
+				ath5k_chip_name(AR5K_VERSION_RAD,
+					sc->ah->ah_radio_5ghz_revision),
+					sc->ah->ah_radio_5ghz_revision);
+			ATH5K_INFO(sc, "RF%s 2GHz radio found (0x%x)\n",
+				ath5k_chip_name(AR5K_VERSION_RAD,
+					sc->ah->ah_radio_2ghz_revision),
+					sc->ah->ah_radio_2ghz_revision);
+		}
+	}
+
+
+	/* ready to process interrupts */
+	__clear_bit(ATH_STAT_INVALID, sc->status);
+
+	return 0;
+err_ah:
+	ath5k_hw_detach(sc->ah);
+err_free_ah:
+	kfree(sc->ah);
+err_irq:
+	free_irq(pdev->irq, sc);
+err_free:
+	ieee80211_free_hw(hw);
+err_map:
+	pci_iounmap(pdev, mem);
+err_reg:
+	pci_release_region(pdev, 0);
+err_dis:
+	pci_disable_device(pdev);
+err:
+	return ret;
+}
+
+static void __devexit
+ath5k_pci_remove(struct pci_dev *pdev)
+{
+	struct ath5k_softc *sc = pci_get_drvdata(pdev);
+
+	ath5k_debug_finish_device(sc);
+	ath5k_detach(pdev, sc->hw);
+	ath5k_hw_detach(sc->ah);
+	kfree(sc->ah);
+	free_irq(pdev->irq, sc);
+	pci_iounmap(pdev, sc->iobase);
+	pci_release_region(pdev, 0);
+	pci_disable_device(pdev);
+	ieee80211_free_hw(sc->hw);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int ath5k_pci_suspend(struct device *dev)
+{
+	struct ath5k_softc *sc = pci_get_drvdata(to_pci_dev(dev));
+
+	ath5k_led_off(sc);
+	return 0;
+}
+
+static int ath5k_pci_resume(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct ath5k_softc *sc = pci_get_drvdata(pdev);
+
+	/*
+	 * Suspend/Resume resets the PCI configuration space, so we have to
+	 * re-disable the RETRY_TIMEOUT register (0x41) to keep
+	 * PCI Tx retries from interfering with C3 CPU state
+	 */
+	pci_write_config_byte(pdev, 0x41, 0);
+
+	ath5k_led_enable(sc);
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(ath5k_pm_ops, ath5k_pci_suspend, ath5k_pci_resume);
+#define ATH5K_PM_OPS	(&ath5k_pm_ops)
+#else
+#define ATH5K_PM_OPS	NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static struct pci_driver ath5k_pci_driver = {
+	.name		= KBUILD_MODNAME,
+	.id_table	= ath5k_pci_id_table,
+	.probe		= ath5k_pci_probe,
+	.remove		= __devexit_p(ath5k_pci_remove),
+	.driver.pm	= ATH5K_PM_OPS,
+};
+
+/*
+ * Module init/exit functions
+ */
+static int __init
+init_ath5k_pci(void)
+{
+	int ret;
+
+	ath5k_debug_init();
+
+	ret = pci_register_driver(&ath5k_pci_driver);
+	if (ret) {
+		printk(KERN_ERR "ath5k_pci: can't register pci driver\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __exit
+exit_ath5k_pci(void)
+{
+	pci_unregister_driver(&ath5k_pci_driver);
+
+	ath5k_debug_finish();
+}
+
+module_init(init_ath5k_pci);
+module_exit(exit_ath5k_pci);