Merge branch 'for-davem' of...

Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

Conflicts:
	drivers/net/wireless/ath/ath9k/ar9003_eeprom.c

Documentation/DocBook/80211.tmpl

@@ -146,6 +146,7 @@
 !Finclude/net/cfg80211.h cfg80211_rx_mgmt
 !Finclude/net/cfg80211.h cfg80211_mgmt_tx_status
 !Finclude/net/cfg80211.h cfg80211_cqm_rssi_notify
+!Finclude/net/cfg80211.h cfg80211_cqm_pktloss_notify
 !Finclude/net/cfg80211.h cfg80211_michael_mic_failure
       </chapter>
       <chapter>
@@ -332,10 +333,16 @@
           <title>functions/definitions</title>
 !Finclude/net/mac80211.h ieee80211_rx_status
 !Finclude/net/mac80211.h mac80211_rx_flags
+!Finclude/net/mac80211.h mac80211_tx_control_flags
+!Finclude/net/mac80211.h mac80211_rate_control_flags
+!Finclude/net/mac80211.h ieee80211_tx_rate
 !Finclude/net/mac80211.h ieee80211_tx_info
+!Finclude/net/mac80211.h ieee80211_tx_info_clear_status
 !Finclude/net/mac80211.h ieee80211_rx
+!Finclude/net/mac80211.h ieee80211_rx_ni
 !Finclude/net/mac80211.h ieee80211_rx_irqsafe
 !Finclude/net/mac80211.h ieee80211_tx_status
+!Finclude/net/mac80211.h ieee80211_tx_status_ni
 !Finclude/net/mac80211.h ieee80211_tx_status_irqsafe
 !Finclude/net/mac80211.h ieee80211_rts_get
 !Finclude/net/mac80211.h ieee80211_rts_duration
@@ -346,6 +353,7 @@
 !Finclude/net/mac80211.h ieee80211_stop_queue
 !Finclude/net/mac80211.h ieee80211_wake_queues
 !Finclude/net/mac80211.h ieee80211_stop_queues
+!Finclude/net/mac80211.h ieee80211_queue_stopped
         </sect1>
       </chapter>
 
@@ -354,6 +362,13 @@
 !Pinclude/net/mac80211.h Frame filtering
 !Finclude/net/mac80211.h ieee80211_filter_flags
       </chapter>
+
+      <chapter id="workqueue">
+        <title>The mac80211 workqueue</title>
+!Pinclude/net/mac80211.h mac80211 workqueue
+!Finclude/net/mac80211.h ieee80211_queue_work
+!Finclude/net/mac80211.h ieee80211_queue_delayed_work
+      </chapter>
     </part>
 
     <part id="advanced">
@@ -374,6 +389,9 @@
 !Finclude/net/mac80211.h set_key_cmd
 !Finclude/net/mac80211.h ieee80211_key_conf
 !Finclude/net/mac80211.h ieee80211_key_flags
+!Finclude/net/mac80211.h ieee80211_tkip_key_type
+!Finclude/net/mac80211.h ieee80211_get_tkip_key
+!Finclude/net/mac80211.h ieee80211_key_removed
       </chapter>
 
       <chapter id="powersave">
@@ -417,6 +435,18 @@
           supported by mac80211, add notes about supporting hw crypto
           with it.
         </para>
+!Finclude/net/mac80211.h ieee80211_iterate_active_interfaces
+!Finclude/net/mac80211.h ieee80211_iterate_active_interfaces_atomic
+      </chapter>
+
+      <chapter id="station-handling">
+        <title>Station handling</title>
+        <para>TODO</para>
+!Finclude/net/mac80211.h ieee80211_sta
+!Finclude/net/mac80211.h sta_notify_cmd
+!Finclude/net/mac80211.h ieee80211_find_sta
+!Finclude/net/mac80211.h ieee80211_find_sta_by_ifaddr
+!Finclude/net/mac80211.h ieee80211_sta_block_awake
       </chapter>
 
       <chapter id="hardware-scan-offload">
@@ -424,6 +454,28 @@
         <para>TBD</para>
 !Finclude/net/mac80211.h ieee80211_scan_completed
       </chapter>
+
+      <chapter id="aggregation">
+        <title>Aggregation</title>
+        <sect1>
+          <title>TX A-MPDU aggregation</title>
+!Pnet/mac80211/agg-tx.c TX A-MPDU aggregation
+!Cnet/mac80211/agg-tx.c
+        </sect1>
+        <sect1>
+          <title>RX A-MPDU aggregation</title>
+!Pnet/mac80211/agg-rx.c RX A-MPDU aggregation
+!Cnet/mac80211/agg-rx.c
+        </sect1>
+!Finclude/net/mac80211.h ieee80211_ampdu_mlme_action
+      </chapter>
+
+      <chapter id="smps">
+        <title>Spatial Multiplexing Powersave (SMPS)</title>
+!Pinclude/net/mac80211.h Spatial multiplexing power save
+!Finclude/net/mac80211.h ieee80211_request_smps
+!Finclude/net/mac80211.h ieee80211_smps_mode
+      </chapter>
     </part>
 
     <part id="rate-control">
@@ -435,9 +487,16 @@
          interface and how it relates to mac80211 and drivers.
         </para>
       </partintro>
-      <chapter id="dummy">
-        <title>dummy chapter</title>
+      <chapter id="ratecontrol-api">
+        <title>Rate Control API</title>
         <para>TBD</para>
+!Finclude/net/mac80211.h ieee80211_start_tx_ba_session
+!Finclude/net/mac80211.h ieee80211_start_tx_ba_cb_irqsafe
+!Finclude/net/mac80211.h ieee80211_stop_tx_ba_session
+!Finclude/net/mac80211.h ieee80211_stop_tx_ba_cb_irqsafe
+!Finclude/net/mac80211.h rate_control_changed
+!Finclude/net/mac80211.h ieee80211_tx_rate_control
+!Finclude/net/mac80211.h rate_control_send_low
       </chapter>
     </part>
 
@@ -485,6 +544,13 @@
         </sect1>
       </chapter>
 
+      <chapter id="aggregation-internals">
+        <title>Aggregation</title>
+!Fnet/mac80211/sta_info.h sta_ampdu_mlme
+!Fnet/mac80211/sta_info.h tid_ampdu_tx
+!Fnet/mac80211/sta_info.h tid_ampdu_rx
+      </chapter>
+
       <chapter id="synchronisation">
         <title>Synchronisation</title>
         <para>TBD</para>

drivers/net/wireless/ath/ar9170/usb.c

@@ -161,8 +161,7 @@ static void ar9170_usb_submit_urb(struct ar9170_usb *aru)
 static void ar9170_usb_tx_urb_complete_frame(struct urb *urb)
 {
 	struct sk_buff *skb = urb->context;
-	struct ar9170_usb *aru = (struct ar9170_usb *)
-	      usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+	struct ar9170_usb *aru = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 
 	if (unlikely(!aru)) {
 		dev_kfree_skb_irq(skb);
@@ -219,8 +218,7 @@ static void ar9170_usb_irq_completed(struct urb *urb)
 static void ar9170_usb_rx_completed(struct urb *urb)
 {
 	struct sk_buff *skb = urb->context;
-	struct ar9170_usb *aru = (struct ar9170_usb *)
-		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+	struct ar9170_usb *aru = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 	int err;
 
 	if (!aru)

drivers/net/wireless/ath/ath.h

@@ -168,6 +168,8 @@ struct ath_common {
 	struct ath_regulatory regulatory;
 	const struct ath_ops *ops;
 	const struct ath_bus_ops *bus_ops;
+
+	bool btcoex_enabled;
 };
 
 struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,

drivers/net/wireless/ath/ath5k/Kconfig

 config ATH5K
 	tristate "Atheros 5xxx wireless cards support"
-	depends on PCI && MAC80211
+	depends on (PCI || ATHEROS_AR231X) && MAC80211
 	select MAC80211_LEDS
 	select LEDS_CLASS
 	select NEW_LEDS
 	select AVERAGE
+	select ATH5K_AHB if (ATHEROS_AR231X && !PCI)
+	select ATH5K_PCI if (!ATHEROS_AR231X && PCI)
 	---help---
 	  This module adds support for wireless adapters based on
 	  Atheros 5xxx chipset.
@@ -38,3 +40,16 @@ config ATH5K_DEBUG
 
 	  modprobe ath5k debug=0x00000400
 
+config ATH5K_AHB
+	bool "Atheros 5xxx AHB bus support"
+	depends on (ATHEROS_AR231X && !PCI)
+	---help---
+	  This adds support for WiSoC type chipsets of the 5xxx Atheros
+	  family.
+
+config ATH5K_PCI
+	bool "Atheros 5xxx PCI bus support"
+	depends on (!ATHEROS_AR231X && PCI)
+	---help---
+	  This adds support for PCI type chipsets of the 5xxx Atheros
+	  family.

drivers/net/wireless/ath/ath5k/Makefile

@@ -15,4 +15,6 @@ ath5k-y				+= rfkill.o
 ath5k-y				+= ani.o
 ath5k-y				+= sysfs.o
 ath5k-$(CONFIG_ATH5K_DEBUG)	+= debug.o
+ath5k-$(CONFIG_ATH5K_AHB)	+= ahb.o
+ath5k-$(CONFIG_ATH5K_PCI)	+= pci.o
 obj-$(CONFIG_ATH5K)		+= ath5k.o

drivers/net/wireless/ath/ath5k/ahb.c

+/*
+ * Copyright (c) 2008-2009 Atheros Communications Inc.
+ * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/nl80211.h>
+#include <linux/platform_device.h>
+#include <ar231x_platform.h>
+#include "ath5k.h"
+#include "debug.h"
+#include "base.h"
+#include "reg.h"
+#include "debug.h"
+
+/* return bus cachesize in 4B word units */
+static void ath5k_ahb_read_cachesize(struct ath_common *common, int *csz)
+{
+	*csz = L1_CACHE_BYTES >> 2;
+}
+
+bool ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
+{
+	struct ath5k_softc *sc = common->priv;
+	struct platform_device *pdev = to_platform_device(sc->dev);
+	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	u16 *eeprom, *eeprom_end;
+
+
+
+	bcfg = pdev->dev.platform_data;
+	eeprom = (u16 *) bcfg->radio;
+	eeprom_end = ((void *) bcfg->config) + BOARD_CONFIG_BUFSZ;
+
+	eeprom += off;
+	if (eeprom > eeprom_end)
+		return -EINVAL;
+
+	*data = *eeprom;
+	return 0;
+}
+
+int ath5k_hw_read_srev(struct ath5k_hw *ah)
+{
+	struct ath5k_softc *sc = ah->ah_sc;
+	struct platform_device *pdev = to_platform_device(sc->dev);
+	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	ah->ah_mac_srev = bcfg->devid;
+	return 0;
+}
+
+static const struct ath_bus_ops ath_ahb_bus_ops = {
+	.ath_bus_type = ATH_AHB,
+	.read_cachesize = ath5k_ahb_read_cachesize,
+	.eeprom_read = ath5k_ahb_eeprom_read,
+};
+
+/*Initialization*/
+static int ath_ahb_probe(struct platform_device *pdev)
+{
+	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	struct ath5k_softc *sc;
+	struct ieee80211_hw *hw;
+	struct resource *res;
+	void __iomem *mem;
+	int irq;
+	int ret = 0;
+	u32 reg;
+
+	if (!pdev->dev.platform_data) {
+		dev_err(&pdev->dev, "no platform data specified\n");
+		ret = -EINVAL;
+		goto err_out;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "no memory resource found\n");
+		ret = -ENXIO;
+		goto err_out;
+	}
+
+	mem = ioremap_nocache(res->start, res->end - res->start + 1);
+	if (mem == NULL) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		ret = -ENOMEM;
+		goto err_out;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "no IRQ resource found\n");
+		ret = -ENXIO;
+		goto err_out;
+	}
+
+	irq = res->start;
+
+	hw = ieee80211_alloc_hw(sizeof(struct ath5k_softc), &ath5k_hw_ops);
+	if (hw == NULL) {
+		dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
+		ret = -ENOMEM;
+		goto err_out;
+	}
+
+	sc = hw->priv;
+	sc->hw = hw;
+	sc->dev = &pdev->dev;
+	sc->iobase = mem;
+	sc->irq = irq;
+	sc->devid = bcfg->devid;
+
+	if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
+		/* Enable WMAC AHB arbitration */
+		reg = __raw_readl((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
+		reg |= AR5K_AR2315_AHB_ARB_CTL_WLAN;
+		__raw_writel(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
+
+		/* Enable global WMAC swapping */
+		reg = __raw_readl((void __iomem *) AR5K_AR2315_BYTESWAP);
+		reg |= AR5K_AR2315_BYTESWAP_WMAC;
+		__raw_writel(reg, (void __iomem *) AR5K_AR2315_BYTESWAP);
+	} else {
+		/* Enable WMAC DMA access (assuming 5312 or 231x*/
+		/* TODO: check other platforms */
+		reg = __raw_readl((void __iomem *) AR5K_AR5312_ENABLE);
+		if (to_platform_device(sc->dev)->id == 0)
+			reg |= AR5K_AR5312_ENABLE_WLAN0;
+		else
+			reg |= AR5K_AR5312_ENABLE_WLAN1;
+		__raw_writel(reg, (void __iomem *) AR5K_AR5312_ENABLE);
+	}
+
+	ret = ath5k_init_softc(sc, &ath_ahb_bus_ops);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
+		ret = -ENODEV;
+		goto err_free_hw;
+	}
+
+	platform_set_drvdata(pdev, hw);
+
+	return 0;
+
+ err_free_hw:
+	ieee80211_free_hw(hw);
+	platform_set_drvdata(pdev, NULL);
+ err_out:
+	return ret;
+}
+
+static int ath_ahb_remove(struct platform_device *pdev)
+{
+	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
+	struct ath5k_softc *sc;
+	u32 reg;
+
+	if (!hw)
+		return 0;
+
+	sc = hw->priv;
+
+	if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
+		/* Disable WMAC AHB arbitration */
+		reg = __raw_readl((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
+		reg &= ~AR5K_AR2315_AHB_ARB_CTL_WLAN;
+		__raw_writel(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
+	} else {
+		/*Stop DMA access */
+		reg = __raw_readl((void __iomem *) AR5K_AR5312_ENABLE);
+		if (to_platform_device(sc->dev)->id == 0)
+			reg &= ~AR5K_AR5312_ENABLE_WLAN0;
+		else
+			reg &= ~AR5K_AR5312_ENABLE_WLAN1;
+		__raw_writel(reg, (void __iomem *) AR5K_AR5312_ENABLE);
+	}
+
+	ath5k_deinit_softc(sc);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver ath_ahb_driver = {
+	.probe      = ath_ahb_probe,
+	.remove     = ath_ahb_remove,
+	.driver		= {
+		.name	= "ar231x-wmac",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init
+ath5k_ahb_init(void)
+{
+	return platform_driver_register(&ath_ahb_driver);
+}
+
+static void __exit
+ath5k_ahb_exit(void)
+{
+	platform_driver_unregister(&ath_ahb_driver);
+}
+
+module_init(ath5k_ahb_init);
+module_exit(ath5k_ahb_exit);

drivers/net/wireless/ath/ath5k/ani.c

@@ -58,19 +58,19 @@ ath5k_ani_set_noise_immunity_level(struct ath5k_hw *ah, int level)
 {
 	/* TODO:
 	 * ANI documents suggest the following five levels to use, but the HAL
-	 * and ath9k use only use the last two levels, making this
+	 * and ath9k use only the last two levels, making this
 	 * essentially an on/off option. There *may* be a reason for this (???),
 	 * so i stick with the HAL version for now...
 	 */
 #if 0
-	static const s8 hi[] = { -18, -18, -16, -14, -12 };
 	static const s8 lo[] = { -52, -56, -60, -64, -70 };
+	static const s8 hi[] = { -18, -18, -16, -14, -12 };
 	static const s8 sz[] = { -34, -41, -48, -55, -62 };
 	static const s8 fr[] = { -70, -72, -75, -78, -80 };
 #else
-	static const s8 sz[] = { -55, -62 };
 	static const s8 lo[] = { -64, -70 };
 	static const s8 hi[] = { -14, -12 };
+	static const s8 sz[] = { -55, -62 };
 	static const s8 fr[] = { -78, -80 };
 #endif
 	if (level < 0 || level >= ARRAY_SIZE(sz)) {

drivers/net/wireless/ath/ath5k/attach.c

@@ -93,16 +93,16 @@ static int ath5k_hw_post(struct ath5k_hw *ah)
 }
 
 /**
- * ath5k_hw_attach - Check if hw is supported and init the needed structs
+ * ath5k_hw_init - Check if hw is supported and init the needed structs
  *
- * @sc: The &struct ath5k_softc we got from the driver's attach function
+ * @sc: The &struct ath5k_softc we got from the driver's init_softc function
  *
  * Check if the device is supported, perform a POST and initialize the needed
  * structs. Returns -ENOMEM if we don't have memory for the needed structs,
  * -ENODEV if the device is not supported or prints an error msg if something
  * else went wrong.
  */
-int ath5k_hw_attach(struct ath5k_softc *sc)
+int ath5k_hw_init(struct ath5k_softc *sc)
 {
 	struct ath5k_hw *ah = sc->ah;
 	struct ath_common *common = ath5k_hw_common(ah);
@@ -115,7 +115,7 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 	 * HW information
 	 */
 	ah->ah_radar.r_enabled = AR5K_TUNE_RADAR_ALERT;
-	ah->ah_turbo = false;
+	ah->ah_bwmode = AR5K_BWMODE_DEFAULT;
 	ah->ah_txpower.txp_tpc = AR5K_TUNE_TPC_TXPOWER;
 	ah->ah_imr = 0;
 	ah->ah_limit_tx_retries = AR5K_INIT_TX_RETRY;
@@ -128,7 +128,8 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 	/*
 	 * Find the mac version
 	 */
-	srev = ath5k_hw_reg_read(ah, AR5K_SREV);
+	ath5k_hw_read_srev(ah);
+	srev = ah->ah_mac_srev;
 	if (srev < AR5K_SREV_AR5311)
 		ah->ah_version = AR5K_AR5210;
 	else if (srev < AR5K_SREV_AR5212)
@@ -136,6 +137,10 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 	else
 		ah->ah_version = AR5K_AR5212;
 
+	/* Get the MAC revision */
+	ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
+	ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV);
+
 	/* Fill the ath5k_hw struct with the needed functions */
 	ret = ath5k_hw_init_desc_functions(ah);
 	if (ret)
@@ -146,9 +151,7 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 	if (ret)
 		goto err;
 
-	/* Get MAC, PHY and RADIO revisions */
-	ah->ah_mac_srev = srev;
-	ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
+	/* Get PHY and RADIO revisions */
 	ah->ah_phy_revision = ath5k_hw_reg_read(ah, AR5K_PHY_CHIP_ID) &
 			0xffffffff;
 	ah->ah_radio_5ghz_revision = ath5k_hw_radio_revision(ah,
@@ -273,7 +276,7 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 	/*
 	 * Write PCI-E power save settings
 	 */
-	if ((ah->ah_version == AR5K_AR5212) && (pdev->is_pcie)) {
+	if ((ah->ah_version == AR5K_AR5212) && pdev && (pdev->is_pcie)) {
 		ath5k_hw_reg_write(ah, 0x9248fc00, AR5K_PCIE_SERDES);
 		ath5k_hw_reg_write(ah, 0x24924924, AR5K_PCIE_SERDES);
 
@@ -305,8 +308,7 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 	/* Get misc capabilities */
 	ret = ath5k_hw_set_capabilities(ah);
 	if (ret) {
-		ATH5K_ERR(sc, "unable to get device capabilities: 0x%04x\n",
-			sc->pdev->device);
+		ATH5K_ERR(sc, "unable to get device capabilities\n");
 		goto err;
 	}
 
@@ -346,11 +348,11 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 }
 
 /**
- * ath5k_hw_detach - Free the ath5k_hw struct
+ * ath5k_hw_deinit - Free the ath5k_hw struct
  *
  * @ah: The &struct ath5k_hw
  */
-void ath5k_hw_detach(struct ath5k_hw *ah)
+void ath5k_hw_deinit(struct ath5k_hw *ah)
 {
 	__set_bit(ATH_STAT_INVALID, ah->ah_sc->status);
 

drivers/net/wireless/ath/ath5k/base.h

@@ -169,7 +169,10 @@ struct ath5k_vif {
 /* Software Carrier, keeps track of the driver state
  * associated with an instance of a device */
 struct ath5k_softc {
-	struct pci_dev		*pdev;		/* for dma mapping */
+	struct pci_dev		*pdev;
+	struct device		*dev;		/* for dma mapping */
+	int irq;
+	u16 devid;
 	void __iomem		*iobase;	/* address of the device */
 	struct mutex		lock;		/* dev-level lock */
 	struct ieee80211_hw	*hw;		/* IEEE 802.11 common */

drivers/net/wireless/ath/ath5k/caps.c

@@ -49,7 +49,6 @@ int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
 
 		/* Set supported modes */
 		__set_bit(AR5K_MODE_11A, ah->ah_capabilities.cap_mode);
-		__set_bit(AR5K_MODE_11A_TURBO, ah->ah_capabilities.cap_mode);
 	} else {
 		/*
 		 * XXX The tranceiver supports frequencies from 4920 to 6100GHz
@@ -74,11 +73,6 @@ int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
 			/* Set supported modes */
 			__set_bit(AR5K_MODE_11A,
 					ah->ah_capabilities.cap_mode);
-			__set_bit(AR5K_MODE_11A_TURBO,
-					ah->ah_capabilities.cap_mode);
-			if (ah->ah_version == AR5K_AR5212)
-				__set_bit(AR5K_MODE_11G_TURBO,
-						ah->ah_capabilities.cap_mode);
 		}
 
 		/* Enable  802.11b if a 2GHz capable radio (2111/5112) is

drivers/net/wireless/ath/ath5k/debug.c

@@ -312,6 +312,7 @@ static const struct {
 	{ ATH5K_DEBUG_DUMP_RX,	"dumprx",	"print received skb content" },
 	{ ATH5K_DEBUG_DUMP_TX,	"dumptx",	"print transmit skb content" },
 	{ ATH5K_DEBUG_DUMPBANDS, "dumpbands",	"dump bands" },
+	{ ATH5K_DEBUG_DMA,	"dma",		"dma start/stop" },
 	{ ATH5K_DEBUG_ANI,	"ani",		"adaptive noise immunity" },
 	{ ATH5K_DEBUG_DESC,	"desc",		"descriptor chains" },
 	{ ATH5K_DEBUG_ANY,	"all",		"show all debug levels" },

drivers/net/wireless/ath/ath5k/debug.h

@@ -95,6 +95,7 @@ struct ath5k_dbg_info {
  * @ATH5K_DEBUG_DUMP_RX: print received skb content
  * @ATH5K_DEBUG_DUMP_TX: print transmit skb content
  * @ATH5K_DEBUG_DUMPBANDS: dump bands
+ * @ATH5K_DEBUG_DMA: debug dma start/stop
  * @ATH5K_DEBUG_TRACE: trace function calls
  * @ATH5K_DEBUG_DESC: descriptor setup
  * @ATH5K_DEBUG_ANY: show at any debug level
@@ -118,6 +119,7 @@ enum ath5k_debug_level {
 	ATH5K_DEBUG_DUMP_RX	= 0x00000100,
 	ATH5K_DEBUG_DUMP_TX	= 0x00000200,
 	ATH5K_DEBUG_DUMPBANDS	= 0x00000400,
+	ATH5K_DEBUG_DMA		= 0x00000800,
 	ATH5K_DEBUG_ANI		= 0x00002000,
 	ATH5K_DEBUG_DESC	= 0x00004000,
 	ATH5K_DEBUG_ANY		= 0xffffffff

drivers/net/wireless/ath/ath5k/desc.c

@@ -26,9 +26,10 @@
 #include "debug.h"
 #include "base.h"
 
-/*
- * TX Descriptors
- */
+
+/************************\
+* TX Control descriptors *
+\************************/
 
 /*
  * Initialize the 2-word tx control descriptor on 5210/5211
@@ -335,6 +336,11 @@ ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
 	return 0;
 }
 
+
+/***********************\
+* TX Status descriptors *
+\***********************/
+
 /*
  * Proccess the tx status descriptor on 5210/5211
  */
@@ -476,9 +482,10 @@ static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah,
 	return 0;
 }
 
-/*
- * RX Descriptors
- */
+
+/****************\
+* RX Descriptors *
+\****************/
 
 /*
  * Initialize an rx control descriptor
@@ -666,6 +673,11 @@ static int ath5k_hw_proc_5212_rx_status(struct ath5k_hw *ah,
 	return 0;
 }
 
+
+/********\
+* Attach *
+\********/
+
 /*
  * Init function pointers inside ath5k_hw struct
  */

drivers/net/wireless/ath/ath5k/dma.c

@@ -37,6 +37,7 @@
 #include "debug.h"
 #include "base.h"
 
+
 /*********\
 * Receive *
 \*********/
@@ -57,7 +58,7 @@ void ath5k_hw_start_rx_dma(struct ath5k_hw *ah)
  *
  * @ah:	The &struct ath5k_hw
  */
-int ath5k_hw_stop_rx_dma(struct ath5k_hw *ah)
+static int ath5k_hw_stop_rx_dma(struct ath5k_hw *ah)
 {
 	unsigned int i;
 
@@ -69,7 +70,11 @@ int ath5k_hw_stop_rx_dma(struct ath5k_hw *ah)
 	for (i = 1000; i > 0 &&
 			(ath5k_hw_reg_read(ah, AR5K_CR) & AR5K_CR_RXE) != 0;
 			i--)
-		udelay(10);
+		udelay(100);
+
+	if (i)
+		ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_DMA,
+				"failed to stop RX DMA !\n");
 
 	return i ? 0 : -EBUSY;
 }
@@ -90,11 +95,18 @@ u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah)
  * @ah: The &struct ath5k_hw
  * @phys_addr: RX descriptor address
  *
- * XXX: Should we check if rx is enabled before setting rxdp ?
+ * Returns -EIO if rx is active
  */
-void ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr)
+int ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr)
 {
+	if (ath5k_hw_reg_read(ah, AR5K_CR) & AR5K_CR_RXE) {
+		ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_DMA,
+				"tried to set RXDP while rx was active !\n");
+		return -EIO;
+	}
+
 	ath5k_hw_reg_write(ah, phys_addr, AR5K_RXDP);
+	return 0;
 }
 
 
@@ -125,7 +137,7 @@ int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue)
 
 	/* Return if queue is declared inactive */
 	if (ah->ah_txq[queue].tqi_type == AR5K_TX_QUEUE_INACTIVE)
-		return -EIO;
+		return -EINVAL;
 
 	if (ah->ah_version == AR5K_AR5210) {
 		tx_queue = ath5k_hw_reg_read(ah, AR5K_CR);
@@ -173,10 +185,10 @@ int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue)
  *
  * Stop DMA transmit on a specific hw queue and drain queue so we don't
  * have any pending frames. Returns -EBUSY if we still have pending frames,
- * -EINVAL if queue number is out of range.
+ * -EINVAL if queue number is out of range or inactive.
  *
  */
-int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
+static int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
 {
 	unsigned int i = 40;
 	u32 tx_queue, pending;
@@ -185,7 +197,7 @@ int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
 
 	/* Return if queue is declared inactive */
 	if (ah->ah_txq[queue].tqi_type == AR5K_TX_QUEUE_INACTIVE)
-		return -EIO;
+		return -EINVAL;
 
 	if (ah->ah_version == AR5K_AR5210) {
 		tx_queue = ath5k_hw_reg_read(ah, AR5K_CR);
@@ -211,12 +223,31 @@ int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
 		ath5k_hw_reg_write(ah, tx_queue, AR5K_CR);
 		ath5k_hw_reg_read(ah, AR5K_CR);
 	} else {
+
+		/*
+		 * Enable DCU early termination to quickly
+		 * flush any pending frames from QCU
+		 */
+		AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
+					AR5K_QCU_MISC_DCU_EARLY);
+
 		/*
 		 * Schedule TX disable and wait until queue is empty
 		 */
 		AR5K_REG_WRITE_Q(ah, AR5K_QCU_TXD, queue);
 
-		/*Check for pending frames*/
+		/* Wait for queue to stop */
+		for (i = 1000; i > 0 &&
+		(AR5K_REG_READ_Q(ah, AR5K_QCU_TXE, queue) != 0);
+		i--)
+			udelay(100);
+
+		if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXE, queue))
+			ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_DMA,
+				"queue %i didn't stop !\n", queue);
+
+		/* Check for pending frames */
+		i = 1000;
 		do {
 			pending = ath5k_hw_reg_read(ah,
 				AR5K_QUEUE_STATUS(queue)) &
@@ -247,12 +278,12 @@ int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
 					AR5K_DIAG_SW_CHANNEL_IDLE_HIGH);
 
 			/* Wait a while and disable mechanism */
-			udelay(200);
+			udelay(400);
 			AR5K_REG_DISABLE_BITS(ah, AR5K_QUIET_CTL1,
 						AR5K_QUIET_CTL1_QT_EN);
 
 			/* Re-check for pending frames */
-			i = 40;
+			i = 100;
 			do {
 				pending = ath5k_hw_reg_read(ah,
 					AR5K_QUEUE_STATUS(queue)) &
@@ -262,18 +293,53 @@ int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
 
 			AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW_5211,
 					AR5K_DIAG_SW_CHANNEL_IDLE_HIGH);
+
+			if (pending)
+				ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_DMA,
+					"quiet mechanism didn't work q:%i !\n",
+					queue);
 		}
 
+		/*
+		 * Disable DCU early termination
+		 */
+		AR5K_REG_DISABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
+					AR5K_QCU_MISC_DCU_EARLY);
+
 		/* Clear register */
 		ath5k_hw_reg_write(ah, 0, AR5K_QCU_TXD);
-		if (pending)
+		if (pending) {
+			ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_DMA,
+					"tx dma didn't stop (q:%i, frm:%i) !\n",
+					queue, pending);
 			return -EBUSY;
+		}
 	}
 
 	/* TODO: Check for success on 5210 else return error */
 	return 0;
 }
 
+/**
+ * ath5k_hw_stop_beacon_queue - Stop beacon queue
+ *
+ * @ah The &struct ath5k_hw
+ * @queue The queue number
+ *
+ * Returns -EIO if queue didn't stop
+ */
+int ath5k_hw_stop_beacon_queue(struct ath5k_hw *ah, unsigned int queue)
+{
+	int ret;
+	ret = ath5k_hw_stop_tx_dma(ah, queue);
+	if (ret) {
+		ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_DMA,
+				"beacon queue didn't stop !\n");
+		return -EIO;
+	}
+	return 0;
+}
+
 /**
  * ath5k_hw_get_txdp - Get TX Descriptor's address for a specific queue
  *
@@ -427,6 +493,7 @@ int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase)
 	return ret;
 }
 
+
 /*******************\
 * Interrupt masking *
 \*******************/
@@ -688,3 +755,92 @@ enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask)
 	return old_mask;
 }
 
+
+/********************\
+ Init/Stop functions
+\********************/
+
+/**
+ * ath5k_hw_dma_init - Initialize DMA unit
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * Set DMA size and pre-enable interrupts
+ * (driver handles tx/rx buffer setup and
+ * dma start/stop)
+ *
+ * XXX: Save/restore RXDP/TXDP registers ?
+ */
+void ath5k_hw_dma_init(struct ath5k_hw *ah)
+{
+	/*
+	 * Set Rx/Tx DMA Configuration
+	 *
+	 * Set standard DMA size (128). Note that
+	 * a DMA size of 512 causes rx overruns and tx errors
+	 * on pci-e cards (tested on 5424 but since rx overruns
+	 * also occur on 5416/5418 with madwifi we set 128
+	 * for all PCI-E cards to be safe).
+	 *
+	 * XXX: need to check 5210 for this
+	 * TODO: Check out tx triger level, it's always 64 on dumps but I
+	 * guess we can tweak it and see how it goes ;-)
+	 */
+	if (ah->ah_version != AR5K_AR5210) {
+		AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
+			AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_128B);
+		AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
+			AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_128B);
+	}
+
+	/* Pre-enable interrupts on 5211/5212*/
+	if (ah->ah_version != AR5K_AR5210)
+		ath5k_hw_set_imr(ah, ah->ah_imr);
+
+}
+
+/**
+ * ath5k_hw_dma_stop - stop DMA unit
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * Stop tx/rx DMA and interrupts. Returns
+ * -EBUSY if tx or rx dma failed to stop.
+ *
+ * XXX: Sometimes DMA unit hangs and we have
+ * stuck frames on tx queues, only a reset
+ * can fix that.
+ */
+int ath5k_hw_dma_stop(struct ath5k_hw *ah)
+{
+	int i, qmax, err;
+	err = 0;
+
+	/* Disable interrupts */
+	ath5k_hw_set_imr(ah, 0);
+
+	/* Stop rx dma */
+	err = ath5k_hw_stop_rx_dma(ah);
+	if (err)
+		return err;
+
+	/* Clear any pending interrupts
+	 * and disable tx dma */
+	if (ah->ah_version != AR5K_AR5210) {
+		ath5k_hw_reg_write(ah, 0xffffffff, AR5K_PISR);
+		qmax = AR5K_NUM_TX_QUEUES;
+	} else {
+		/* PISR/SISR Not available on 5210 */
+		ath5k_hw_reg_read(ah, AR5K_ISR);
+		qmax = AR5K_NUM_TX_QUEUES_NOQCU;
+	}
+
+	for (i = 0; i < qmax; i++) {
+		err = ath5k_hw_stop_tx_dma(ah, i);
+		/* -EINVAL -> queue inactive */
+		if (err != -EINVAL)
+			return err;
+	}
+
+	return err;
+}

drivers/net/wireless/ath/ath5k/eeprom.c

@@ -28,45 +28,16 @@
 #include "debug.h"
 #include "base.h"
 
-/*
- * Read from eeprom
- */
-static int ath5k_hw_eeprom_read(struct ath5k_hw *ah, u32 offset, u16 *data)
-{
-	u32 status, timeout;
-
-	/*
-	 * Initialize EEPROM access
-	 */
-	if (ah->ah_version == AR5K_AR5210) {
-		AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_EEAE);
-		(void)ath5k_hw_reg_read(ah, AR5K_EEPROM_BASE + (4 * offset));
-	} else {
-		ath5k_hw_reg_write(ah, offset, AR5K_EEPROM_BASE);
-		AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD,
-				AR5K_EEPROM_CMD_READ);
-	}
 
-	for (timeout = AR5K_TUNE_REGISTER_TIMEOUT; timeout > 0; timeout--) {
-		status = ath5k_hw_reg_read(ah, AR5K_EEPROM_STATUS);
-		if (status & AR5K_EEPROM_STAT_RDDONE) {
-			if (status & AR5K_EEPROM_STAT_RDERR)
-				return -EIO;
-			*data = (u16)(ath5k_hw_reg_read(ah, AR5K_EEPROM_DATA) &
-					0xffff);
-			return 0;
-		}
-		udelay(15);
-	}
-
-	return -ETIMEDOUT;
-}
+/******************\
+* Helper functions *
+\******************/
 
 /*
  * Translate binary channel representation in EEPROM to frequency
  */
 static u16 ath5k_eeprom_bin2freq(struct ath5k_eeprom_info *ee, u16 bin,
-                                 unsigned int mode)
+							unsigned int mode)
 {
 	u16 val;
 
@@ -89,6 +60,11 @@ static u16 ath5k_eeprom_bin2freq(struct ath5k_eeprom_info *ee, u16 bin,
 	return val;
 }
 
+
+/*********\
+* Parsers *
+\*********/
+
 /*
  * Initialize eeprom & capabilities structs
  */
@@ -198,7 +174,7 @@ ath5k_eeprom_init_header(struct ath5k_hw *ah)
 	 *
 	 * XXX: Serdes values seem to be fixed so
 	 * no need to read them here, we write them
-	 * during ath5k_hw_attach */
+	 * during ath5k_hw_init */
 	AR5K_EEPROM_READ(AR5K_EEPROM_PCIE_OFFSET, val);
 	ee->ee_serdes = (val == AR5K_EEPROM_PCIE_SERDES_SECTION) ?
 							true : false;
@@ -647,6 +623,7 @@ ath5k_eeprom_init_11bg_2413(struct ath5k_hw *ah, unsigned int mode, int offset)
 	return 0;
 }
 
+
 /*
  * Read power calibration for RF5111 chips
  *
@@ -1514,6 +1491,7 @@ ath5k_eeprom_read_target_rate_pwr_info(struct ath5k_hw *ah, unsigned int mode)
 	return 0;
 }
 
+
 /*
  * Read per channel calibration info from EEPROM
  *
@@ -1607,15 +1585,6 @@ ath5k_eeprom_free_pcal_info(struct ath5k_hw *ah, int mode)
 	return 0;
 }
 
-void
-ath5k_eeprom_detach(struct ath5k_hw *ah)
-{
-	u8 mode;
-
-	for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; mode++)
-		ath5k_eeprom_free_pcal_info(ah, mode);
-}
-
 /* Read conformance test limits used for regulatory control */
 static int
 ath5k_eeprom_read_ctl_info(struct ath5k_hw *ah)
@@ -1756,6 +1725,44 @@ ath5k_eeprom_read_spur_chans(struct ath5k_hw *ah)
 	return ret;
 }
 
+/*
+ * Read the MAC address from eeprom
+ */
+int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
+{
+	u8 mac_d[ETH_ALEN] = {};
+	u32 total, offset;
+	u16 data;
+	int octet, ret;
+
+	ret = ath5k_hw_nvram_read(ah, 0x20, &data);
+	if (ret)
+		return ret;
+
+	for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) {
+		ret = ath5k_hw_nvram_read(ah, offset, &data);
+		if (ret)
+			return ret;
+
+		total += data;
+		mac_d[octet + 1] = data & 0xff;
+		mac_d[octet] = data >> 8;
+		octet += 2;
+	}
+
+	if (!total || total == 3 * 0xffff)
+		return -EINVAL;
+
+	memcpy(mac, mac_d, ETH_ALEN);
+
+	return 0;
+}
+
+
+/***********************\
+* Init/Detach functions *
+\***********************/
+
 /*
  * Initialize eeprom data structure
  */
@@ -1787,35 +1794,11 @@ ath5k_eeprom_init(struct ath5k_hw *ah)
 	return 0;
 }
 
-/*
- * Read the MAC address from eeprom
- */
-int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
+void
+ath5k_eeprom_detach(struct ath5k_hw *ah)
 {
-	u8 mac_d[ETH_ALEN] = {};
-	u32 total, offset;
-	u16 data;
-	int octet, ret;
-
-	ret = ath5k_hw_eeprom_read(ah, 0x20, &data);
-	if (ret)
-		return ret;
-
-	for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) {
-		ret = ath5k_hw_eeprom_read(ah, offset, &data);
-		if (ret)
-			return ret;
-
-		total += data;
-		mac_d[octet + 1] = data & 0xff;
-		mac_d[octet] = data >> 8;
-		octet += 2;
-	}
-
-	if (!total || total == 3 * 0xffff)
-		return -EINVAL;
-
-	memcpy(mac, mac_d, ETH_ALEN);
+	u8 mode;
 
-	return 0;
+	for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; mode++)
+		ath5k_eeprom_free_pcal_info(ah, mode);
 }

drivers/net/wireless/ath/ath5k/eeprom.h

@@ -241,7 +241,7 @@ enum ath5k_eeprom_freq_bands{
 #define	AR5K_SPUR_SYMBOL_WIDTH_TURBO_100Hz	6250
 
 #define AR5K_EEPROM_READ(_o, _v) do {			\
-	ret = ath5k_hw_eeprom_read(ah, (_o), &(_v));	\
+	ret = ath5k_hw_nvram_read(ah, (_o), &(_v));	\
 	if (ret)					\
 		return ret;				\
 } while (0)

drivers/net/wireless/ath/ath5k/led.c

@@ -133,7 +133,7 @@ ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led,
 	led->led_dev.default_trigger = trigger;
 	led->led_dev.brightness_set = ath5k_led_brightness_set;
 
-	err = led_classdev_register(&sc->pdev->dev, &led->led_dev);
+	err = led_classdev_register(sc->dev, &led->led_dev);
 	if (err) {
 		ATH5K_WARN(sc, "could not register LED %s\n", name);
 		led->sc = NULL;
@@ -161,11 +161,20 @@ int ath5k_init_leds(struct ath5k_softc *sc)
 {
 	int ret = 0;
 	struct ieee80211_hw *hw = sc->hw;
+#ifndef CONFIG_ATHEROS_AR231X
 	struct pci_dev *pdev = sc->pdev;
+#endif
 	char name[ATH5K_LED_MAX_NAME_LEN + 1];
 	const struct pci_device_id *match;
 
+	if (!sc->pdev)
+		return 0;
+
+#ifdef CONFIG_ATHEROS_AR231X
+	match = NULL;
+#else
 	match = pci_match_id(&ath5k_led_devices[0], pdev);
+#endif
 	if (match) {
 		__set_bit(ATH_STAT_LEDSOFT, sc->status);
 		sc->led_pin = ATH_PIN(match->driver_data);

drivers/net/wireless/ath/ath5k/pci.c

+/*
+ * Copyright (c) 2008-2009 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/nl80211.h>
+#include <linux/pci.h>
+#include <linux/pci-aspm.h>
+#include "../ath.h"
+#include "ath5k.h"
+#include "debug.h"
+#include "base.h"
+#include "reg.h"
+
+/* Known PCI ids */
+static DEFINE_PCI_DEVICE_TABLE(ath5k_pci_id_table) = {
+	{ PCI_VDEVICE(ATHEROS, 0x0207) }, /* 5210 early */
+	{ PCI_VDEVICE(ATHEROS, 0x0007) }, /* 5210 */
+	{ PCI_VDEVICE(ATHEROS, 0x0011) }, /* 5311 - this is on AHB bus !*/
+	{ PCI_VDEVICE(ATHEROS, 0x0012) }, /* 5211 */
+	{ PCI_VDEVICE(ATHEROS, 0x0013) }, /* 5212 */
+	{ PCI_VDEVICE(3COM_2,  0x0013) }, /* 3com 5212 */
+	{ PCI_VDEVICE(3COM,    0x0013) }, /* 3com 3CRDAG675 5212 */
+	{ PCI_VDEVICE(ATHEROS, 0x1014) }, /* IBM minipci 5212 */
+	{ PCI_VDEVICE(ATHEROS, 0x0014) }, /* 5212 combatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0015) }, /* 5212 combatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0016) }, /* 5212 combatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0017) }, /* 5212 combatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0018) }, /* 5212 combatible */
+	{ PCI_VDEVICE(ATHEROS, 0x0019) }, /* 5212 combatible */
+	{ PCI_VDEVICE(ATHEROS, 0x001a) }, /* 2413 Griffin-lite */
+	{ PCI_VDEVICE(ATHEROS, 0x001b) }, /* 5413 Eagle */
+	{ PCI_VDEVICE(ATHEROS, 0x001c) }, /* PCI-E cards */
+	{ PCI_VDEVICE(ATHEROS, 0x001d) }, /* 2417 Nala */
+	{ 0 }
+};
+
+/* return bus cachesize in 4B word units */
+static void ath5k_pci_read_cachesize(struct ath_common *common, int *csz)
+{
+	struct ath5k_softc *sc = (struct ath5k_softc *) common->priv;
+	u8 u8tmp;
+
+	pci_read_config_byte(sc->pdev, PCI_CACHE_LINE_SIZE, &u8tmp);
+	*csz = (int)u8tmp;
+
+	/*
+	 * This check was put in to avoid "unplesant" consequences if
+	 * the bootrom has not fully initialized all PCI devices.
+	 * Sometimes the cache line size register is not set
+	 */
+
+	if (*csz == 0)
+		*csz = L1_CACHE_BYTES >> 2;   /* Use the default size */
+}
+
+/*
+ * Read from eeprom
+ */
+bool ath5k_pci_eeprom_read(struct ath_common *common, u32 offset, u16 *data)
+{
+	struct ath5k_hw *ah = (struct ath5k_hw *) common->ah;
+	u32 status, timeout;
+
+	/*
+	 * Initialize EEPROM access
+	 */
+	if (ah->ah_version == AR5K_AR5210) {
+		AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_EEAE);
+		(void)ath5k_hw_reg_read(ah, AR5K_EEPROM_BASE + (4 * offset));
+	} else {
+		ath5k_hw_reg_write(ah, offset, AR5K_EEPROM_BASE);
+		AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD,
+				AR5K_EEPROM_CMD_READ);
+	}
+
+	for (timeout = AR5K_TUNE_REGISTER_TIMEOUT; timeout > 0; timeout--) {
+		status = ath5k_hw_reg_read(ah, AR5K_EEPROM_STATUS);
+		if (status & AR5K_EEPROM_STAT_RDDONE) {
+			if (status & AR5K_EEPROM_STAT_RDERR)
+				return -EIO;
+			*data = (u16)(ath5k_hw_reg_read(ah, AR5K_EEPROM_DATA) &
+					0xffff);
+			return 0;
+		}
+		udelay(15);
+	}
+
+	return -ETIMEDOUT;
+}
+
+int ath5k_hw_read_srev(struct ath5k_hw *ah)
+{
+	ah->ah_mac_srev = ath5k_hw_reg_read(ah, AR5K_SREV);
+	return 0;
+}
+
+/* Common ath_bus_opts structure */
+static const struct ath_bus_ops ath_pci_bus_ops = {
+	.ath_bus_type = ATH_PCI,
+	.read_cachesize = ath5k_pci_read_cachesize,
+	.eeprom_read = ath5k_pci_eeprom_read,
+};
+
+/********************\
+* 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 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));
+
+	sc = hw->priv;
+	sc->hw = hw;
+	sc->pdev = pdev;
+	sc->dev = &pdev->dev;
+	sc->irq = pdev->irq;
+	sc->devid = id->device;
+	sc->iobase = mem; /* So we can unmap it on detach */
+
+	/* Initialize */
+	ret = ath5k_init_softc(sc, &ath_pci_bus_ops);
+	if (ret)
+		goto err_free;
+
+	/* Set private data */
+	pci_set_drvdata(pdev, hw);
+
+	return 0;
+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 ieee80211_hw *hw = pci_get_drvdata(pdev);
+	struct ath5k_softc *sc = hw->priv;
+
+	ath5k_deinit_softc(sc);
+	pci_iounmap(pdev, sc->iobase);
+	pci_release_region(pdev, 0);
+	pci_disable_device(pdev);
+	ieee80211_free_hw(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;
+
+	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);
+}
+
+module_init(init_ath5k_pci);
+module_exit(exit_ath5k_pci);

drivers/net/wireless/ath/ath5k/reg.h

@@ -787,6 +787,7 @@
 #define	AR5K_DCU_GBL_IFS_MISC_LFSR_SLICE	0x00000007	/* LFSR Slice Select */
 #define	AR5K_DCU_GBL_IFS_MISC_TURBO_MODE	0x00000008	/* Turbo mode */
 #define	AR5K_DCU_GBL_IFS_MISC_SIFS_DUR_USEC	0x000003f0	/* SIFS Duration mask */
+#define	AR5K_DCU_GBL_IFS_MISC_SIFS_DUR_USEC_S	4
 #define	AR5K_DCU_GBL_IFS_MISC_USEC_DUR		0x000ffc00	/* USEC Duration mask */
 #define	AR5K_DCU_GBL_IFS_MISC_USEC_DUR_S	10
 #define	AR5K_DCU_GBL_IFS_MISC_DCU_ARB_DELAY	0x00300000	/* DCU Arbiter delay mask */
@@ -1311,7 +1312,7 @@
 #define AR5K_IFS1_EIFS		0x03fff000
 #define AR5K_IFS1_EIFS_S	12
 #define AR5K_IFS1_CS_EN		0x04000000
-
+#define AR5K_IFS1_CS_EN_S	26
 
 /*
  * CFP duration register
@@ -2058,6 +2059,7 @@
 
 #define AR5K_PHY_SCAL			0x9878
 #define AR5K_PHY_SCAL_32MHZ		0x0000000e
+#define	AR5K_PHY_SCAL_32MHZ_5311	0x00000008
 #define	AR5K_PHY_SCAL_32MHZ_2417	0x0000000a
 #define	AR5K_PHY_SCAL_32MHZ_HB63	0x00000032
 
@@ -2244,6 +2246,8 @@
 #define	AR5K_PHY_FRAME_CTL		(ah->ah_version == AR5K_AR5210 ? \
 					AR5K_PHY_FRAME_CTL_5210 : AR5K_PHY_FRAME_CTL_5211)
 /*---[5111+]---*/
+#define	AR5K_PHY_FRAME_CTL_WIN_LEN	0x00000003	/* Force window length (?) */
+#define	AR5K_PHY_FRAME_CTL_WIN_LEN_S	0
 #define	AR5K_PHY_FRAME_CTL_TX_CLIP	0x00000038	/* Mask for tx clip (?) */
 #define	AR5K_PHY_FRAME_CTL_TX_CLIP_S	3
 #define	AR5K_PHY_FRAME_CTL_PREP_CHINFO	0x00010000	/* Prepend chan info */
@@ -2558,3 +2562,28 @@
  */
 #define AR5K_PHY_PDADC_TXPOWER_BASE	0xa280
 #define	AR5K_PHY_PDADC_TXPOWER(_n)	(AR5K_PHY_PDADC_TXPOWER_BASE + ((_n) << 2))
+
+/*
+ * Platform registers for WiSoC
+ */
+#define AR5K_AR5312_RESET		0xbc003020
+#define AR5K_AR5312_RESET_BB0_COLD	0x00000004
+#define AR5K_AR5312_RESET_BB1_COLD	0x00000200
+#define AR5K_AR5312_RESET_WMAC0		0x00002000
+#define AR5K_AR5312_RESET_BB0_WARM	0x00004000
+#define AR5K_AR5312_RESET_WMAC1		0x00020000
+#define AR5K_AR5312_RESET_BB1_WARM	0x00040000
+
+#define AR5K_AR5312_ENABLE		0xbc003080
+#define AR5K_AR5312_ENABLE_WLAN0    0x00000001
+#define AR5K_AR5312_ENABLE_WLAN1    0x00000008
+
+#define AR5K_AR2315_RESET		0xb1000004
+#define AR5K_AR2315_RESET_WMAC		0x00000001
+#define AR5K_AR2315_RESET_BB_WARM	0x00000002
+
+#define AR5K_AR2315_AHB_ARB_CTL		0xb1000008
+#define AR5K_AR2315_AHB_ARB_CTL_WLAN	0x00000002
+
+#define AR5K_AR2315_BYTESWAP	0xb100000c
+#define AR5K_AR2315_BYTESWAP_WMAC	0x00000002

drivers/net/wireless/ath/ath5k/sysfs.c

@@ -95,7 +95,7 @@ static struct attribute_group ath5k_attribute_group_ani = {
 int
 ath5k_sysfs_register(struct ath5k_softc *sc)
 {
-	struct device *dev = &sc->pdev->dev;
+	struct device *dev = sc->dev;
 	int err;
 
 	err = sysfs_create_group(&dev->kobj, &ath5k_attribute_group_ani);
@@ -110,7 +110,7 @@ ath5k_sysfs_register(struct ath5k_softc *sc)
 void
 ath5k_sysfs_unregister(struct ath5k_softc *sc)
 {
-	struct device *dev = &sc->pdev->dev;
+	struct device *dev = sc->dev;
 
 	sysfs_remove_group(&dev->kobj, &ath5k_attribute_group_ani);
 }

drivers/net/wireless/ath/ath9k/ar9003_eeprom.c

@@ -57,10 +57,11 @@
 #define SUB_NUM_CTL_MODES_AT_5G_40 2    /* excluding HT40, EXT-OFDM */
 #define SUB_NUM_CTL_MODES_AT_2G_40 3    /* excluding HT40, EXT-OFDM, EXT-CCK */
 
+#define CTL(_tpower, _flag) ((_tpower) | ((_flag) << 6))
+
 static int ar9003_hw_power_interpolate(int32_t x,
 				       int32_t *px, int32_t *py, u_int16_t np);
 
-#define CTL(_tpower, _flag) ((_tpower) | ((_flag) << 6))
 
 static const struct ar9300_eeprom ar9300_default = {
 	.eepromVersion = 2,
@@ -3032,6 +3033,8 @@ static u32 ath9k_hw_ar9300_get_eeprom(struct ath_hw *ah,
 		return le32_to_cpu(pBase->swreg);
 	case EEP_PAPRD:
 		return !!(pBase->featureEnable & BIT(5));
+	case EEP_CHAIN_MASK_REDUCE:
+		return (pBase->miscConfiguration >> 0x3) & 0x1;
 	default:
 		return 0;
 	}

drivers/net/wireless/ath/ath9k/ar9003_phy.c

@@ -487,7 +487,11 @@ void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
 		break;
 	}
 
-	REG_WRITE(ah, AR_SELFGEN_MASK, tx);
+	if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7))
+		REG_WRITE(ah, AR_SELFGEN_MASK, 0x3);
+	else
+		REG_WRITE(ah, AR_SELFGEN_MASK, tx);
+
 	if (tx == 0x5) {
 		REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 			    AR_PHY_SWAP_ALT_CHAIN);

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -545,6 +545,7 @@ struct ath_ant_comb {
 #define SC_OP_BT_PRIORITY_DETECTED   BIT(12)
 #define SC_OP_BT_SCAN		     BIT(13)
 #define SC_OP_ANI_RUN		     BIT(14)
+#define SC_OP_ENABLE_APM	     BIT(15)
 
 /* Powersave flags */
 #define PS_WAIT_FOR_BEACON        BIT(0)
@@ -697,6 +698,8 @@ static inline void ath_ahb_exit(void) {};
 void ath9k_ps_wakeup(struct ath_softc *sc);
 void ath9k_ps_restore(struct ath_softc *sc);
 
+u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
+
 void ath9k_set_bssid_mask(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 int ath9k_wiphy_add(struct ath_softc *sc);
 int ath9k_wiphy_del(struct ath_wiphy *aphy);

drivers/net/wireless/ath/ath9k/beacon.c

@@ -103,7 +103,8 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
 	memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
 	series[0].Tries = 1;
 	series[0].Rate = rate;
-	series[0].ChSel = common->tx_chainmask;
+	series[0].ChSel = ath_txchainmask_reduction(sc,
+			common->tx_chainmask, series[0].Rate);
 	series[0].RateFlags = (ctsrate) ? ATH9K_RATESERIES_RTS_CTS : 0;
 	ath9k_hw_set11n_ratescenario(ah, ds, ds, 0, ctsrate, ctsduration,
 				     series, 4, 0);

drivers/net/wireless/ath/ath9k/btcoex.c

@@ -35,29 +35,6 @@ struct ath_btcoex_config {
 	bool bt_hold_rx_clear;
 };
 
-static const u16 ath_subsysid_tbl[] = {
-	AR9280_COEX2WIRE_SUBSYSID,
-	AT9285_COEX3WIRE_SA_SUBSYSID,
-	AT9285_COEX3WIRE_DA_SUBSYSID
-};
-
-/*
- * Checks the subsystem id of the device to see if it
- * supports btcoex
- */
-bool ath9k_hw_btcoex_supported(struct ath_hw *ah)
-{
-	int i;
-
-	if (!ah->hw_version.subsysid)
-		return false;
-
-	for (i = 0; i < ARRAY_SIZE(ath_subsysid_tbl); i++)
-		if (ah->hw_version.subsysid == ath_subsysid_tbl[i])
-			return true;
-
-	return false;
-}
 
 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum)
 {

drivers/net/wireless/ath/ath9k/btcoex.h

@@ -49,7 +49,6 @@ struct ath_btcoex_hw {
 	u32 bt_coex_mode2; 	/* Register setting for AR_BT_COEX_MODE2 */
 };
 
-bool ath9k_hw_btcoex_supported(struct ath_hw *ah);
 void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
 void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);

drivers/net/wireless/ath/ath9k/debug.c

@@ -24,8 +24,6 @@
 #define REG_READ_D(_ah, _reg) \
 	ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
 
-static struct dentry *ath9k_debugfs_root;
-
 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
 {
 	file->private_data = inode->i_private;
@@ -878,11 +876,8 @@ int ath9k_init_debug(struct ath_hw *ah)
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_softc *sc = (struct ath_softc *) common->priv;
 
-	if (!ath9k_debugfs_root)
-		return -ENOENT;
-
-	sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
-						      ath9k_debugfs_root);
+	sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
+						   sc->hw->wiphy->debugfsdir);
 	if (!sc->debug.debugfs_phy)
 		return -ENOMEM;
 
@@ -935,29 +930,7 @@ int ath9k_init_debug(struct ath_hw *ah)
 	sc->debug.regidx = 0;
 	return 0;
 err:
-	ath9k_exit_debug(ah);
-	return -ENOMEM;
-}
-
-void ath9k_exit_debug(struct ath_hw *ah)
-{
-	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_softc *sc = (struct ath_softc *) common->priv;
-
 	debugfs_remove_recursive(sc->debug.debugfs_phy);
-}
-
-int ath9k_debug_create_root(void)
-{
-	ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
-	if (!ath9k_debugfs_root)
-		return -ENOENT;
-
-	return 0;
-}
-
-void ath9k_debug_remove_root(void)
-{
-	debugfs_remove(ath9k_debugfs_root);
-	ath9k_debugfs_root = NULL;
+	sc->debug.debugfs_phy = NULL;
+	return -ENOMEM;
 }

drivers/net/wireless/ath/ath9k/debug.h

@@ -164,10 +164,7 @@ struct ath9k_debug {
 };
 
 int ath9k_init_debug(struct ath_hw *ah);
-void ath9k_exit_debug(struct ath_hw *ah);
 
-int ath9k_debug_create_root(void);
-void ath9k_debug_remove_root(void);
 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 		       struct ath_tx_status *ts);
@@ -180,19 +177,6 @@ static inline int ath9k_init_debug(struct ath_hw *ah)
 	return 0;
 }
 
-static inline void ath9k_exit_debug(struct ath_hw *ah)
-{
-}
-
-static inline int ath9k_debug_create_root(void)
-{
-	return 0;
-}
-
-static inline void ath9k_debug_remove_root(void)
-{
-}
-
 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
 					    enum ath9k_int status)
 {

drivers/net/wireless/ath/ath9k/eeprom.h

@@ -280,6 +280,7 @@ enum eeprom_param {
 	EEP_PAPRD,
 	EEP_MODAL_VER,
 	EEP_ANT_DIV_CTL1,
+	EEP_CHAIN_MASK_REDUCE
 };
 
 enum ar5416_rates {

drivers/net/wireless/ath/ath9k/hif_usb.c

@@ -363,9 +363,9 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
 				    struct sk_buff *skb)
 {
 	struct sk_buff *nskb, *skb_pool[MAX_PKT_NUM_IN_TRANSFER];
-	int index = 0, i = 0, chk_idx, len = skb->len;
-	int rx_remain_len = 0, rx_pkt_len = 0;
-	u16 pkt_len, pkt_tag, pool_index = 0;
+	int index = 0, i = 0, len = skb->len;
+	int rx_remain_len, rx_pkt_len;
+	u16 pool_index = 0;
 	u8 *ptr;
 
 	spin_lock(&hif_dev->rx_lock);
@@ -399,64 +399,64 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
 	spin_unlock(&hif_dev->rx_lock);
 
 	while (index < len) {
+		u16 pkt_len;
+		u16 pkt_tag;
+		u16 pad_len;
+		int chk_idx;
+
 		ptr = (u8 *) skb->data;
 
 		pkt_len = ptr[index] + (ptr[index+1] << 8);
 		pkt_tag = ptr[index+2] + (ptr[index+3] << 8);
 
-		if (pkt_tag == ATH_USB_RX_STREAM_MODE_TAG) {
-			u16 pad_len;
-
-			pad_len = 4 - (pkt_len & 0x3);
-			if (pad_len == 4)
-				pad_len = 0;
-
-			chk_idx = index;
-			index = index + 4 + pkt_len + pad_len;
-
-			if (index > MAX_RX_BUF_SIZE) {
-				spin_lock(&hif_dev->rx_lock);
-				hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE;
-				hif_dev->rx_transfer_len =
-					MAX_RX_BUF_SIZE - chk_idx - 4;
-				hif_dev->rx_pad_len = pad_len;
-
-				nskb = __dev_alloc_skb(pkt_len + 32,
-						       GFP_ATOMIC);
-				if (!nskb) {
-					dev_err(&hif_dev->udev->dev,
-					"ath9k_htc: RX memory allocation"
-					" error\n");
-					spin_unlock(&hif_dev->rx_lock);
-					goto err;
-				}
-				skb_reserve(nskb, 32);
-				RX_STAT_INC(skb_allocated);
-
-				memcpy(nskb->data, &(skb->data[chk_idx+4]),
-				       hif_dev->rx_transfer_len);
-
-				/* Record the buffer pointer */
-				hif_dev->remain_skb = nskb;
+		if (pkt_tag != ATH_USB_RX_STREAM_MODE_TAG) {
+			RX_STAT_INC(skb_dropped);
+			return;
+		}
+
+		pad_len = 4 - (pkt_len & 0x3);
+		if (pad_len == 4)
+			pad_len = 0;
+
+		chk_idx = index;
+		index = index + 4 + pkt_len + pad_len;
+
+		if (index > MAX_RX_BUF_SIZE) {
+			spin_lock(&hif_dev->rx_lock);
+			hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE;
+			hif_dev->rx_transfer_len =
+				MAX_RX_BUF_SIZE - chk_idx - 4;
+			hif_dev->rx_pad_len = pad_len;
+
+			nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC);
+			if (!nskb) {
+				dev_err(&hif_dev->udev->dev,
+					"ath9k_htc: RX memory allocation error\n");
 				spin_unlock(&hif_dev->rx_lock);
-			} else {
-				nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC);
-				if (!nskb) {
-					dev_err(&hif_dev->udev->dev,
-					"ath9k_htc: RX memory allocation"
-					" error\n");
-					goto err;
-				}
-				skb_reserve(nskb, 32);
-				RX_STAT_INC(skb_allocated);
-
-				memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len);
-				skb_put(nskb, pkt_len);
-				skb_pool[pool_index++] = nskb;
+				goto err;
 			}
+			skb_reserve(nskb, 32);
+			RX_STAT_INC(skb_allocated);
+
+			memcpy(nskb->data, &(skb->data[chk_idx+4]),
+			       hif_dev->rx_transfer_len);
+
+			/* Record the buffer pointer */
+			hif_dev->remain_skb = nskb;
+			spin_unlock(&hif_dev->rx_lock);
 		} else {
-			RX_STAT_INC(skb_dropped);
-			return;
+			nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC);
+			if (!nskb) {
+				dev_err(&hif_dev->udev->dev,
+					"ath9k_htc: RX memory allocation error\n");
+				goto err;
+			}
+			skb_reserve(nskb, 32);
+			RX_STAT_INC(skb_allocated);
+
+			memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len);
+			skb_put(nskb, pkt_len);
+			skb_pool[pool_index++] = nskb;
 		}
 	}
 
@@ -471,7 +471,7 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
 static void ath9k_hif_usb_rx_cb(struct urb *urb)
 {
 	struct sk_buff *skb = (struct sk_buff *) urb->context;
-	struct hif_device_usb *hif_dev = (struct hif_device_usb *)
+	struct hif_device_usb *hif_dev =
 		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 	int ret;
 
@@ -518,7 +518,7 @@ static void ath9k_hif_usb_reg_in_cb(struct urb *urb)
 {
 	struct sk_buff *skb = (struct sk_buff *) urb->context;
 	struct sk_buff *nskb;
-	struct hif_device_usb *hif_dev = (struct hif_device_usb *)
+	struct hif_device_usb *hif_dev =
 		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 	int ret;
 
@@ -993,8 +993,7 @@ static void ath9k_hif_usb_reboot(struct usb_device *udev)
 static void ath9k_hif_usb_disconnect(struct usb_interface *interface)
 {
 	struct usb_device *udev = interface_to_usbdev(interface);
-	struct hif_device_usb *hif_dev =
-		(struct hif_device_usb *) usb_get_intfdata(interface);
+	struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
 
 	if (hif_dev) {
 		ath9k_htc_hw_deinit(hif_dev->htc_handle,
@@ -1016,8 +1015,7 @@ static void ath9k_hif_usb_disconnect(struct usb_interface *interface)
 static int ath9k_hif_usb_suspend(struct usb_interface *interface,
 				 pm_message_t message)
 {
-	struct hif_device_usb *hif_dev =
-		(struct hif_device_usb *) usb_get_intfdata(interface);
+	struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
 
 	ath9k_hif_usb_dealloc_urbs(hif_dev);
 
@@ -1026,8 +1024,7 @@ static int ath9k_hif_usb_suspend(struct usb_interface *interface,
 
 static int ath9k_hif_usb_resume(struct usb_interface *interface)
 {
-	struct hif_device_usb *hif_dev =
-		(struct hif_device_usb *) usb_get_intfdata(interface);
+	struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
 	struct htc_target *htc_handle = hif_dev->htc_handle;
 	int ret;
 

drivers/net/wireless/ath/ath9k/htc_drv_main.c

@@ -184,6 +184,47 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
 	return ret;
 }
 
+static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath9k_htc_target_vif hvif;
+	int ret = 0;
+	u8 cmd_rsp;
+
+	if (priv->nvifs > 0)
+		return -ENOBUFS;
+
+	memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
+	memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
+
+	hvif.opmode = cpu_to_be32(HTC_M_MONITOR);
+	priv->ah->opmode = NL80211_IFTYPE_MONITOR;
+	hvif.index = priv->nvifs;
+
+	WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
+	if (ret)
+		return ret;
+
+	priv->nvifs++;
+	return 0;
+}
+
+static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
+{
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath9k_htc_target_vif hvif;
+	int ret = 0;
+	u8 cmd_rsp;
+
+	memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
+	memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
+	hvif.index = 0; /* Should do for now */
+	WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
+	priv->nvifs--;
+
+	return ret;
+}
+
 static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_sta *sta)
@@ -1199,6 +1240,16 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw)
 	WMI_CMD(WMI_STOP_RECV_CMDID);
 	skb_queue_purge(&priv->tx_queue);
 
+	/* Remove monitor interface here */
+	if (ah->opmode == NL80211_IFTYPE_MONITOR) {
+		if (ath9k_htc_remove_monitor_interface(priv))
+			ath_print(common, ATH_DBG_FATAL,
+				  "Unable to remove monitor interface\n");
+		else
+			ath_print(common, ATH_DBG_CONFIG,
+				  "Monitor interface removed\n");
+	}
+
 	if (ah->btcoex_hw.enabled) {
 		ath9k_hw_btcoex_disable(ah);
 		if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
@@ -1372,13 +1423,16 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
 		}
 	}
 
-	if (changed & IEEE80211_CONF_CHANGE_MONITOR)
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
 		if (conf->flags & IEEE80211_CONF_MONITOR) {
-			ath_print(common, ATH_DBG_CONFIG,
-				  "HW opmode set to Monitor mode\n");
-			priv->ah->opmode = NL80211_IFTYPE_MONITOR;
+			if (ath9k_htc_add_monitor_interface(priv))
+				ath_print(common, ATH_DBG_FATAL,
+					  "Failed to set monitor mode\n");
+			else
+				ath_print(common, ATH_DBG_CONFIG,
+					  "HW opmode set to Monitor mode\n");
 		}
-
+	}
 
 	if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 		mutex_lock(&priv->htc_pm_lock);

drivers/net/wireless/ath/ath9k/htc_hst.h

@@ -77,20 +77,6 @@ struct htc_config_pipe_msg {
 	u8 credits;
 } __packed;
 
-struct htc_packet {
-	void *pktcontext;
-	u8 *buf;
-	u8 *buf_payload;
-	u32 buflen;
-	u32 payload_len;
-
-	int endpoint;
-	int status;
-
-	void *context;
-	u32 reserved;
-};
-
 struct htc_ep_callbacks {
 	void *priv;
 	void (*tx) (void *, struct sk_buff *, enum htc_endpoint_id, bool txok);
@@ -123,11 +109,6 @@ struct htc_endpoint {
 #define HTC_CONTROL_BUFFER_SIZE	\
 	(HTC_MAX_CONTROL_MESSAGE_LENGTH + sizeof(struct htc_frame_hdr))
 
-struct htc_control_buf {
-	struct htc_packet htc_pkt;
-	u8 buf[HTC_CONTROL_BUFFER_SIZE];
-};
-
 #define HTC_OP_START_WAIT           BIT(0)
 #define HTC_OP_CONFIG_PIPE_CREDITS  BIT(1)
 

drivers/net/wireless/ath/ath9k/hw.c

@@ -1925,8 +1925,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 	pCap->num_antcfg_2ghz =
 		ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
 
-	if (AR_SREV_9280_20_OR_LATER(ah) &&
-	    ath9k_hw_btcoex_supported(ah)) {
+	if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
 		btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
 		btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
 
@@ -1975,6 +1974,12 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 			if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1))
 				pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
 		}
+	if (AR_SREV_9300_20_OR_LATER(ah)) {
+		if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
+			pCap->hw_caps |= ATH9K_HW_CAP_APM;
+	}
+
+
 
 	return 0;
 }

drivers/net/wireless/ath/ath9k/hw.h

@@ -187,6 +187,7 @@ enum ath9k_hw_caps {
 	ATH9K_HW_CAP_ANT_DIV_COMB		= BIT(12),
 	ATH9K_HW_CAP_2GHZ			= BIT(13),
 	ATH9K_HW_CAP_5GHZ			= BIT(14),
+	ATH9K_HW_CAP_APM			= BIT(15),
 };
 
 struct ath9k_hw_capabilities {

drivers/net/wireless/ath/ath9k/init.c

@@ -37,6 +37,10 @@ int led_blink;
 module_param_named(blink, led_blink, int, 0444);
 MODULE_PARM_DESC(blink, "Enable LED blink on activity");
 
+static int ath9k_btcoex_enable;
+module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
+MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
+
 /* We use the hw_value as an index into our private channel structure */
 
 #define CHAN2G(_freq, _idx)  { \
@@ -540,6 +544,7 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
 	common->hw = sc->hw;
 	common->priv = sc;
 	common->debug_mask = ath9k_debug;
+	common->btcoex_enabled = ath9k_btcoex_enable == 1;
 	spin_lock_init(&common->cc_lock);
 
 	spin_lock_init(&sc->wiphy_lock);
@@ -562,13 +567,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
 	if (ret)
 		goto err_hw;
 
-	ret = ath9k_init_debug(ah);
-	if (ret) {
-		ath_print(common, ATH_DBG_FATAL,
-			  "Unable to create debugfs files\n");
-		goto err_debug;
-	}
-
 	ret = ath9k_init_queues(sc);
 	if (ret)
 		goto err_queues;
@@ -591,8 +589,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
 		if (ATH_TXQ_SETUP(sc, i))
 			ath_tx_cleanupq(sc, &sc->tx.txq[i]);
 err_queues:
-	ath9k_exit_debug(ah);
-err_debug:
 	ath9k_hw_deinit(ah);
 err_hw:
 	tasklet_kill(&sc->intr_tq);
@@ -738,6 +734,13 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
 	if (error)
 		goto error_register;
 
+	error = ath9k_init_debug(ah);
+	if (error) {
+		ath_print(common, ATH_DBG_FATAL,
+			  "Unable to create debugfs files\n");
+		goto error_world;
+	}
+
 	/* Handle world regulatory */
 	if (!ath_is_world_regd(reg)) {
 		error = regulatory_hint(hw->wiphy, reg->alpha2);
@@ -796,7 +799,6 @@ static void ath9k_deinit_softc(struct ath_softc *sc)
 		if (ATH_TXQ_SETUP(sc, i))
 			ath_tx_cleanupq(sc, &sc->tx.txq[i]);
 
-	ath9k_exit_debug(sc->sc_ah);
 	ath9k_hw_deinit(sc->sc_ah);
 
 	tasklet_kill(&sc->intr_tq);
@@ -863,20 +865,12 @@ static int __init ath9k_init(void)
 		goto err_out;
 	}
 
-	error = ath9k_debug_create_root();
-	if (error) {
-		printk(KERN_ERR
-			"ath9k: Unable to create debugfs root: %d\n",
-			error);
-		goto err_rate_unregister;
-	}
-
 	error = ath_pci_init();
 	if (error < 0) {
 		printk(KERN_ERR
 			"ath9k: No PCI devices found, driver not installed.\n");
 		error = -ENODEV;
-		goto err_remove_root;
+		goto err_rate_unregister;
 	}
 
 	error = ath_ahb_init();
@@ -890,8 +884,6 @@ static int __init ath9k_init(void)
  err_pci_exit:
 	ath_pci_exit();
 
- err_remove_root:
-	ath9k_debug_remove_root();
  err_rate_unregister:
 	ath_rate_control_unregister();
  err_out:
@@ -903,7 +895,6 @@ static void __exit ath9k_exit(void)
 {
 	ath_ahb_exit();
 	ath_pci_exit();
-	ath9k_debug_remove_root();
 	ath_rate_control_unregister();
 	printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
 }

drivers/net/wireless/ath/ath9k/main.c

@@ -553,9 +553,12 @@ void ath_update_chainmask(struct ath_softc *sc, int is_ht)
 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
 {
 	struct ath_node *an;
-
+	struct ath_hw *ah = sc->sc_ah;
 	an = (struct ath_node *)sta->drv_priv;
 
+	if ((ah->caps.hw_caps) & ATH9K_HW_CAP_APM)
+		sc->sc_flags |= SC_OP_ENABLE_APM;
+
 	if (sc->sc_flags & SC_OP_TXAGGR) {
 		ath_tx_node_init(sc, an);
 		an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +

drivers/net/wireless/ath/carl9170/usb.c

@@ -160,8 +160,7 @@ static void carl9170_usb_submit_data_urb(struct ar9170 *ar)
 
 static void carl9170_usb_tx_data_complete(struct urb *urb)
 {
-	struct ar9170 *ar = (struct ar9170 *)
-	      usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+	struct ar9170 *ar = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 
 	if (WARN_ON_ONCE(!ar)) {
 		dev_kfree_skb_irq(urb->context);

drivers/net/wireless/b43/phy_n.h

@@ -782,7 +782,7 @@ struct b43_phy_n {
 	u16 mphase_txcal_numcmds;
 	u16 mphase_txcal_bestcoeffs[11];
 
-	u8 txpwrctrl;
+	bool txpwrctrl;
 	u16 txcal_bbmult;
 	u16 txiqlocal_bestc[11];
 	bool txiqlocal_coeffsvalid;

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -3175,7 +3175,8 @@ static int iwl_mac_setup_register(struct iwl_priv *priv,
 	hw->flags = IEEE80211_HW_SIGNAL_DBM |
 		    IEEE80211_HW_AMPDU_AGGREGATION |
 		    IEEE80211_HW_NEED_DTIM_PERIOD |
-		    IEEE80211_HW_SPECTRUM_MGMT;
+		    IEEE80211_HW_SPECTRUM_MGMT |
+		    IEEE80211_HW_REPORTS_TX_ACK_STATUS;
 
 	if (!priv->cfg->base_params->broken_powersave)
 		hw->flags |= IEEE80211_HW_SUPPORTS_PS |