-commit 930b0dffd1731f3f418f9132faea720a23b7af61
-Author: Johannes Berg <johannes.berg@intel.com>
-Date: Tue Jun 3 11:18:47 2014 +0200
+commit 4c82fc569cf2f29e6c66d98ef4a1b0f3b6a98e9d
+Author: Felix Fietkau <nbd@openwrt.org>
+Date: Sat Sep 27 22:39:27 2014 +0200
- mac80211: fix station/driver powersave race
+ ath9k_hw: disable hardware ad-hoc flag on ar934x rev 3
- It is currently possible to have a race due to the station PS
- unblock work like this:
- * station goes to sleep with frames buffered in the driver
- * driver blocks wakeup
- * station wakes up again
- * driver flushes/returns frames, and unblocks, which schedules
- the unblock work
- * unblock work starts to run, and checks that the station is
- awake (i.e. that the WLAN_STA_PS_STA flag isn't set)
- * we process a received frame with PM=1, setting the flag again
- * ieee80211_sta_ps_deliver_wakeup() runs, delivering all frames
- to the driver, and then clearing the WLAN_STA_PS_DRIVER and
- WLAN_STA_PS_STA flags
+ On AR934x rev 3, settin the ad-hoc flag completely messes up hardware
+ state - beacons get stuck, almost no packets make it out, hardware is
+ constantly reset.
- In this scenario, mac80211 will think that the station is awake,
- while it really is asleep, and any TX'ed frames should be filtered
- by the device (it will know that the station is sleeping) but then
- passed to mac80211 again, which will not buffer it either as it
- thinks the station is awake, and eventually the packets will be
- dropped.
+ When leaving out that flag and setting up the hw like in AP mode, TSF
+ timers won't be automatically synced, but at least the rest works.
- Fix this by moving the clearing of the flags to exactly where we
- learn about the situation. This creates a problem of reordering,
- so introduce another flag indicating that delivery is being done,
- this new flag also queues frames and is cleared only while the
- spinlock is held (which the queuing code also holds) so that any
- concurrent delivery/TX is handled correctly.
+ AR934x rev 2 and older are not affected by this bug
- Reported-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
- Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
-commit 6df35206bc6c1c6aad1d8077df5786b4a7f77873
+commit ecfb4b3fff006372ac5c40871f9bb182fd00444f
Author: Felix Fietkau <nbd@openwrt.org>
-Date: Fri May 23 19:58:14 2014 +0200
+Date: Sat Sep 27 22:15:43 2014 +0200
- mac80211: reduce packet loss notifications under load
-
- During strong signal fluctuations under high throughput, few consecutive
- failed A-MPDU transmissions can easily trigger packet loss notification,
- and thus (in AP mode) client disconnection.
+ ath9k: use ah->get_mac_revision for all SoC devices if available
- Reduce the number of false positives by checking the A-MPDU status flag
- and treating a failed A-MPDU as a single packet.
+ It is needed for AR934x as well
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
-commit 7b7843a36fbcc568834404c7430ff895d8502131
+commit c11113bc25df22898fb995d3205bdc4f27c98073
Author: Felix Fietkau <nbd@openwrt.org>
-Date: Fri May 23 19:26:32 2014 +0200
+Date: Sat Sep 27 18:04:58 2014 +0200
- mac80211: fix a memory leak on sta rate selection table
+ ath5k: add missing include for debug code
+
+ Needed for calling vmalloc()/vfree()
- Cc: stable@vger.kernel.org
- Reported-by: Christophe Prévotaux <cprevotaux@nltinc.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
-commit 96892d6aa0a153423070addf3070bc79578b3897
+commit 83f76a9f9a42773c7eef90bb86b4b2c16b0b3755
Author: Felix Fietkau <nbd@openwrt.org>
-Date: Mon May 19 21:20:49 2014 +0200
+Date: Sat Sep 27 15:58:51 2014 +0200
- ath9k: avoid passing buffers to the hardware during flush
-
- The commit "ath9k: fix possible hang on flush" changed the receive code
- to always link rx descriptors of processed frames, even when flushing.
- In some cases, this leads to flushed rx buffers being passed to the
- hardware while rx is already stopped.
+ ath5k: fix AHB kconfig dependency
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -34,7 +34,8 @@ static inline bool ath9k_check_auto_slee
- * buffer (or rx fifo). This can incorrectly acknowledge packets
- * to a sender if last desc is self-linked.
- */
--static void ath_rx_buf_link(struct ath_softc *sc, struct ath_rxbuf *bf)
-+static void ath_rx_buf_link(struct ath_softc *sc, struct ath_rxbuf *bf,
-+ bool flush)
- {
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
-@@ -59,18 +60,19 @@ static void ath_rx_buf_link(struct ath_s
- common->rx_bufsize,
- 0);
-
-- if (sc->rx.rxlink == NULL)
-- ath9k_hw_putrxbuf(ah, bf->bf_daddr);
-- else
-+ if (sc->rx.rxlink)
- *sc->rx.rxlink = bf->bf_daddr;
-+ else if (!flush)
-+ ath9k_hw_putrxbuf(ah, bf->bf_daddr);
-
- sc->rx.rxlink = &ds->ds_link;
- }
-
--static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_rxbuf *bf)
-+static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_rxbuf *bf,
-+ bool flush)
- {
- if (sc->rx.buf_hold)
-- ath_rx_buf_link(sc, sc->rx.buf_hold);
-+ ath_rx_buf_link(sc, sc->rx.buf_hold, flush);
-
- sc->rx.buf_hold = bf;
- }
-@@ -442,7 +444,7 @@ int ath_startrecv(struct ath_softc *sc)
- sc->rx.buf_hold = NULL;
- sc->rx.rxlink = NULL;
- list_for_each_entry_safe(bf, tbf, &sc->rx.rxbuf, list) {
-- ath_rx_buf_link(sc, bf);
-+ ath_rx_buf_link(sc, bf, false);
- }
-
- /* We could have deleted elements so the list may be empty now */
-@@ -1118,12 +1120,12 @@ requeue_drop_frag:
- requeue:
- list_add_tail(&bf->list, &sc->rx.rxbuf);
-
-- if (edma) {
-- ath_rx_edma_buf_link(sc, qtype);
-- } else {
-- ath_rx_buf_relink(sc, bf);
-+ if (!edma) {
-+ ath_rx_buf_relink(sc, bf, flush);
- if (!flush)
- ath9k_hw_rxena(ah);
-+ } else if (!flush) {
-+ ath_rx_edma_buf_link(sc, qtype);
- }
-
- if (!budget--)
---- a/net/mac80211/sta_info.c
-+++ b/net/mac80211/sta_info.c
-@@ -100,7 +100,8 @@ static void __cleanup_single_sta(struct
- struct ps_data *ps;
-
- if (test_sta_flag(sta, WLAN_STA_PS_STA) ||
-- test_sta_flag(sta, WLAN_STA_PS_DRIVER)) {
-+ test_sta_flag(sta, WLAN_STA_PS_DRIVER) ||
-+ test_sta_flag(sta, WLAN_STA_PS_DELIVER)) {
- if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
- sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
- ps = &sdata->bss->ps;
-@@ -111,6 +112,7 @@ static void __cleanup_single_sta(struct
-
- clear_sta_flag(sta, WLAN_STA_PS_STA);
- clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
-+ clear_sta_flag(sta, WLAN_STA_PS_DELIVER);
-
- atomic_dec(&ps->num_sta_ps);
- sta_info_recalc_tim(sta);
-@@ -125,7 +127,7 @@ static void __cleanup_single_sta(struct
- if (ieee80211_vif_is_mesh(&sdata->vif))
- mesh_sta_cleanup(sta);
-
-- cancel_work_sync(&sta->drv_unblock_wk);
-+ cancel_work_sync(&sta->drv_deliver_wk);
-
- /*
- * Destroy aggregation state here. It would be nice to wait for the
-@@ -227,6 +229,7 @@ struct sta_info *sta_info_get_by_idx(str
- */
- void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
- {
-+ struct ieee80211_sta_rates *rates;
- int i;
-
- if (sta->rate_ctrl)
-@@ -238,6 +241,10 @@ void sta_info_free(struct ieee80211_loca
- kfree(sta->tx_lat);
- }
-
-+ rates = rcu_dereference_protected(sta->sta.rates, true);
-+ if (rates)
-+ kfree(rates);
+commit ddd67f2a5cfd73fad4b78190025402d419b9f0a9
+Author: Felix Fietkau <nbd@openwrt.org>
+Date: Sat Sep 27 15:57:09 2014 +0200
+
+ Revert "ath5k: Remove AHB bus support"
+
+ This reverts commit 093ec3c5337434f40d77c1af06c139da3e5ba6dc.
+
+--- a/drivers/net/wireless/ath/ath5k/Kconfig
++++ b/drivers/net/wireless/ath/ath5k/Kconfig
+@@ -2,12 +2,14 @@ config ATH5K
+ tristate "Atheros 5xxx wireless cards support"
+ depends on m
+ depends on PCI && MAC80211
++ depends on (PCI || ATHEROS_AR231X) && MAC80211
+ select ATH_COMMON
+ select MAC80211_LEDS
+ select BACKPORT_LEDS_CLASS
+ select BACKPORT_NEW_LEDS
+ select BACKPORT_AVERAGE
+- select ATH5K_PCI
++ select ATH5K_AHB if ATHEROS_AR231X
++ select ATH5K_PCI if !ATHEROS_AR231X
+ ---help---
+ This module adds support for wireless adapters based on
+ Atheros 5xxx chipset.
+@@ -52,9 +54,16 @@ config ATH5K_TRACER
+
+ If unsure, say N.
+
++config ATH5K_AHB
++ bool "Atheros 5xxx AHB bus support"
++ depends on ATHEROS_AR231X
++ ---help---
++ This adds support for WiSoC type chipsets of the 5xxx Atheros
++ family.
+
- sta_dbg(sta->sdata, "Destroyed STA %pM\n", sta->sta.addr);
-
- kfree(sta);
-@@ -252,33 +259,23 @@ static void sta_info_hash_add(struct iee
- rcu_assign_pointer(local->sta_hash[STA_HASH(sta->sta.addr)], sta);
- }
-
--static void sta_unblock(struct work_struct *wk)
-+static void sta_deliver_ps_frames(struct work_struct *wk)
- {
- struct sta_info *sta;
-
-- sta = container_of(wk, struct sta_info, drv_unblock_wk);
-+ sta = container_of(wk, struct sta_info, drv_deliver_wk);
-
- if (sta->dead)
- return;
-
-- if (!test_sta_flag(sta, WLAN_STA_PS_STA)) {
-- local_bh_disable();
-+ local_bh_disable();
-+ if (!test_sta_flag(sta, WLAN_STA_PS_STA))
- ieee80211_sta_ps_deliver_wakeup(sta);
-- local_bh_enable();
-- } else if (test_and_clear_sta_flag(sta, WLAN_STA_PSPOLL)) {
-- clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
--
-- local_bh_disable();
-+ else if (test_and_clear_sta_flag(sta, WLAN_STA_PSPOLL))
- ieee80211_sta_ps_deliver_poll_response(sta);
-- local_bh_enable();
-- } else if (test_and_clear_sta_flag(sta, WLAN_STA_UAPSD)) {
-- clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
--
-- local_bh_disable();
-+ else if (test_and_clear_sta_flag(sta, WLAN_STA_UAPSD))
- ieee80211_sta_ps_deliver_uapsd(sta);
-- local_bh_enable();
-- } else
-- clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
-+ local_bh_enable();
- }
-
- static int sta_prepare_rate_control(struct ieee80211_local *local,
-@@ -340,7 +337,7 @@ struct sta_info *sta_info_alloc(struct i
-
- spin_lock_init(&sta->lock);
- spin_lock_init(&sta->ps_lock);
-- INIT_WORK(&sta->drv_unblock_wk, sta_unblock);
-+ INIT_WORK(&sta->drv_deliver_wk, sta_deliver_ps_frames);
- INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work);
- mutex_init(&sta->ampdu_mlme.mtx);
- #ifdef CPTCFG_MAC80211_MESH
-@@ -1140,8 +1137,15 @@ void ieee80211_sta_ps_deliver_wakeup(str
- }
-
- ieee80211_add_pending_skbs(local, &pending);
-- clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
-- clear_sta_flag(sta, WLAN_STA_PS_STA);
-+
-+ /* now we're no longer in the deliver code */
-+ clear_sta_flag(sta, WLAN_STA_PS_DELIVER);
-+
-+ /* The station might have polled and then woken up before we responded,
-+ * so clear these flags now to avoid them sticking around.
-+ */
-+ clear_sta_flag(sta, WLAN_STA_PSPOLL);
-+ clear_sta_flag(sta, WLAN_STA_UAPSD);
- spin_unlock(&sta->ps_lock);
-
- atomic_dec(&ps->num_sta_ps);
-@@ -1542,10 +1546,26 @@ void ieee80211_sta_block_awake(struct ie
-
- trace_api_sta_block_awake(sta->local, pubsta, block);
-
-- if (block)
-+ if (block) {
- set_sta_flag(sta, WLAN_STA_PS_DRIVER);
-- else if (test_sta_flag(sta, WLAN_STA_PS_DRIVER))
-- ieee80211_queue_work(hw, &sta->drv_unblock_wk);
-+ return;
+ config ATH5K_PCI
+ bool "Atheros 5xxx PCI bus support"
+- depends on PCI
++ depends on !ATHEROS_AR231X
+ ---help---
+ This adds support for PCI type chipsets of the 5xxx Atheros
+ family.
+--- /dev/null
++++ b/drivers/net/wireless/ath/ath5k/ahb.c
+@@ -0,0 +1,234 @@
++/*
++ * 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 <linux/etherdevice.h>
++#include <linux/export.h>
++#include <ar231x_platform.h>
++#include "ath5k.h"
++#include "debug.h"
++#include "base.h"
++#include "reg.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;
++}
++
++static bool
++ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
++{
++ struct ath5k_hw *ah = common->priv;
++ struct platform_device *pdev = to_platform_device(ah->dev);
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ u16 *eeprom, *eeprom_end;
++
++ eeprom = (u16 *) bcfg->radio;
++ eeprom_end = ((void *) bcfg->config) + BOARD_CONFIG_BUFSZ;
++
++ eeprom += off;
++ if (eeprom > eeprom_end)
++ return false;
++
++ *data = *eeprom;
++ return true;
++}
++
++int ath5k_hw_read_srev(struct ath5k_hw *ah)
++{
++ struct platform_device *pdev = to_platform_device(ah->dev);
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ ah->ah_mac_srev = bcfg->devid;
++ return 0;
++}
++
++static int ath5k_ahb_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
++{
++ struct platform_device *pdev = to_platform_device(ah->dev);
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ u8 *cfg_mac;
++
++ if (to_platform_device(ah->dev)->id == 0)
++ cfg_mac = bcfg->config->wlan0_mac;
++ else
++ cfg_mac = bcfg->config->wlan1_mac;
++
++ memcpy(mac, cfg_mac, ETH_ALEN);
++ 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,
++ .eeprom_read_mac = ath5k_ahb_eeprom_read_mac,
++};
++
++/*Initialization*/
++static int ath_ahb_probe(struct platform_device *pdev)
++{
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ struct ath5k_hw *ah;
++ struct ieee80211_hw *hw;
++ struct resource *res;
++ void __iomem *mem;
++ int irq;
++ int ret = 0;
++ u32 reg;
++
++ if (!dev_get_platdata(&pdev->dev)) {
++ 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, resource_size(res));
++ 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_iounmap;
++ }
++
++ irq = res->start;
++
++ hw = ieee80211_alloc_hw(sizeof(struct ath5k_hw), &ath5k_hw_ops);
++ if (hw == NULL) {
++ dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
++ ret = -ENOMEM;
++ goto err_iounmap;
++ }
++
++ ah = hw->priv;
++ ah->hw = hw;
++ ah->dev = &pdev->dev;
++ ah->iobase = mem;
++ ah->irq = irq;
++ ah->devid = bcfg->devid;
++
++ if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
++ /* Enable WMAC AHB arbitration */
++ reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
++ reg |= AR5K_AR2315_AHB_ARB_CTL_WLAN;
++ iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
++
++ /* Enable global WMAC swapping */
++ reg = ioread32((void __iomem *) AR5K_AR2315_BYTESWAP);
++ reg |= AR5K_AR2315_BYTESWAP_WMAC;
++ iowrite32(reg, (void __iomem *) AR5K_AR2315_BYTESWAP);
++ } else {
++ /* Enable WMAC DMA access (assuming 5312 or 231x*/
++ /* TODO: check other platforms */
++ reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
++ if (to_platform_device(ah->dev)->id == 0)
++ reg |= AR5K_AR5312_ENABLE_WLAN0;
++ else
++ reg |= AR5K_AR5312_ENABLE_WLAN1;
++ iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
++
++ /*
++ * On a dual-band AR5312, the multiband radio is only
++ * used as pass-through. Disable 2 GHz support in the
++ * driver for it
++ */
++ if (to_platform_device(ah->dev)->id == 0 &&
++ (bcfg->config->flags & (BD_WLAN0 | BD_WLAN1)) ==
++ (BD_WLAN1 | BD_WLAN0))
++ ah->ah_capabilities.cap_needs_2GHz_ovr = true;
++ else
++ ah->ah_capabilities.cap_needs_2GHz_ovr = false;
+ }
+
-+ if (!test_sta_flag(sta, WLAN_STA_PS_DRIVER))
-+ return;
-+
-+ if (!test_sta_flag(sta, WLAN_STA_PS_STA)) {
-+ set_sta_flag(sta, WLAN_STA_PS_DELIVER);
-+ clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
-+ ieee80211_queue_work(hw, &sta->drv_deliver_wk);
-+ } else if (test_sta_flag(sta, WLAN_STA_PSPOLL) ||
-+ test_sta_flag(sta, WLAN_STA_UAPSD)) {
-+ /* must be asleep in this case */
-+ clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
-+ ieee80211_queue_work(hw, &sta->drv_deliver_wk);
++ ret = ath5k_init_ah(ah, &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);
++ err_iounmap:
++ iounmap(mem);
++ err_out:
++ return ret;
++}
++
++static int ath_ahb_remove(struct platform_device *pdev)
++{
++ struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
++ struct ieee80211_hw *hw = platform_get_drvdata(pdev);
++ struct ath5k_hw *ah;
++ u32 reg;
++
++ if (!hw)
++ return 0;
++
++ ah = hw->priv;
++
++ if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
++ /* Disable WMAC AHB arbitration */
++ reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
++ reg &= ~AR5K_AR2315_AHB_ARB_CTL_WLAN;
++ iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
+ } else {
-+ clear_sta_flag(sta, WLAN_STA_PS_DRIVER);
++ /*Stop DMA access */
++ reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
++ if (to_platform_device(ah->dev)->id == 0)
++ reg &= ~AR5K_AR5312_ENABLE_WLAN0;
++ else
++ reg &= ~AR5K_AR5312_ENABLE_WLAN1;
++ iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
+ }
++
++ ath5k_deinit_ah(ah);
++ iounmap(ah->iobase);
++ ieee80211_free_hw(hw);
++
++ return 0;
++}
++
++static struct platform_driver ath_ahb_driver = {
++ .probe = ath_ahb_probe,
++ .remove = ath_ahb_remove,
++ .driver = {
++ .name = "ar231x-wmac",
++ .owner = THIS_MODULE,
++ },
++};
++
++module_platform_driver(ath_ahb_driver);
+--- a/drivers/net/wireless/ath/ath5k/ath5k.h
++++ b/drivers/net/wireless/ath/ath5k/ath5k.h
+@@ -1647,6 +1647,32 @@ static inline struct ath_regulatory *ath
+ return &(ath5k_hw_common(ah)->regulatory);
}
- EXPORT_SYMBOL(ieee80211_sta_block_awake);
-
---- a/net/mac80211/status.c
-+++ b/net/mac80211/status.c
-@@ -541,6 +541,23 @@ static void ieee80211_tx_latency_end_msr
- */
- #define STA_LOST_PKT_THRESHOLD 50
-+static void ieee80211_lost_packet(struct sta_info *sta, struct sk_buff *skb)
++#ifdef CONFIG_ATHEROS_AR231X
++#define AR5K_AR2315_PCI_BASE ((void __iomem *)0xb0100000)
++
++static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
+{
-+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
++ /* On AR2315 and AR2317 the PCI clock domain registers
++ * are outside of the WMAC register space */
++ if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
++ (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
++ return AR5K_AR2315_PCI_BASE + reg;
+
-+ /* This packet was aggregated but doesn't carry status info */
-+ if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
-+ !(info->flags & IEEE80211_TX_STAT_AMPDU))
-+ return;
++ return ah->iobase + reg;
++}
+
-+ if (++sta->lost_packets < STA_LOST_PKT_THRESHOLD)
-+ return;
++static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
++{
++ return ioread32(ath5k_ahb_reg(ah, reg));
++}
+
-+ cfg80211_cqm_pktloss_notify(sta->sdata->dev, sta->sta.addr,
-+ sta->lost_packets, GFP_ATOMIC);
-+ sta->lost_packets = 0;
++static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
++{
++ iowrite32(val, ath5k_ahb_reg(ah, reg));
+}
+
- void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
++#else
++
+ static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
{
- struct sk_buff *skb2;
-@@ -680,12 +697,8 @@ void ieee80211_tx_status(struct ieee8021
- if (info->flags & IEEE80211_TX_STAT_ACK) {
- if (sta->lost_packets)
- sta->lost_packets = 0;
-- } else if (++sta->lost_packets >= STA_LOST_PKT_THRESHOLD) {
-- cfg80211_cqm_pktloss_notify(sta->sdata->dev,
-- sta->sta.addr,
-- sta->lost_packets,
-- GFP_ATOMIC);
-- sta->lost_packets = 0;
-+ } else {
-+ ieee80211_lost_packet(sta, skb);
- }
- }
-
---- a/net/mac80211/rx.c
-+++ b/net/mac80211/rx.c
-@@ -1107,6 +1107,8 @@ static void sta_ps_end(struct sta_info *
- return;
- }
-
-+ set_sta_flag(sta, WLAN_STA_PS_DELIVER);
-+ clear_sta_flag(sta, WLAN_STA_PS_STA);
- ieee80211_sta_ps_deliver_wakeup(sta);
+ return ioread32(ah->iobase + reg);
+@@ -1657,6 +1683,8 @@ static inline void ath5k_hw_reg_write(st
+ iowrite32(val, ah->iobase + reg);
}
---- a/net/mac80211/sta_info.h
-+++ b/net/mac80211/sta_info.h
-@@ -82,6 +82,7 @@ enum ieee80211_sta_info_flags {
- WLAN_STA_TOFFSET_KNOWN,
- WLAN_STA_MPSP_OWNER,
- WLAN_STA_MPSP_RECIPIENT,
-+ WLAN_STA_PS_DELIVER,
++#endif
++
+ static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
+ {
+ return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
+--- a/drivers/net/wireless/ath/ath5k/base.c
++++ b/drivers/net/wireless/ath/ath5k/base.c
+@@ -99,6 +99,15 @@ static int ath5k_reset(struct ath5k_hw *
+
+ /* Known SREVs */
+ static const struct ath5k_srev_name srev_names[] = {
++#ifdef CONFIG_ATHEROS_AR231X
++ { "5312", AR5K_VERSION_MAC, AR5K_SREV_AR5312_R2 },
++ { "5312", AR5K_VERSION_MAC, AR5K_SREV_AR5312_R7 },
++ { "2313", AR5K_VERSION_MAC, AR5K_SREV_AR2313_R8 },
++ { "2315", AR5K_VERSION_MAC, AR5K_SREV_AR2315_R6 },
++ { "2315", AR5K_VERSION_MAC, AR5K_SREV_AR2315_R7 },
++ { "2317", AR5K_VERSION_MAC, AR5K_SREV_AR2317_R1 },
++ { "2317", AR5K_VERSION_MAC, AR5K_SREV_AR2317_R2 },
++#else
+ { "5210", AR5K_VERSION_MAC, AR5K_SREV_AR5210 },
+ { "5311", AR5K_VERSION_MAC, AR5K_SREV_AR5311 },
+ { "5311A", AR5K_VERSION_MAC, AR5K_SREV_AR5311A },
+@@ -117,6 +126,7 @@ static const struct ath5k_srev_name srev
+ { "5418", AR5K_VERSION_MAC, AR5K_SREV_AR5418 },
+ { "2425", AR5K_VERSION_MAC, AR5K_SREV_AR2425 },
+ { "2417", AR5K_VERSION_MAC, AR5K_SREV_AR2417 },
++#endif
+ { "xxxxx", AR5K_VERSION_MAC, AR5K_SREV_UNKNOWN },
+ { "5110", AR5K_VERSION_RAD, AR5K_SREV_RAD_5110 },
+ { "5111", AR5K_VERSION_RAD, AR5K_SREV_RAD_5111 },
+@@ -132,6 +142,10 @@ static const struct ath5k_srev_name srev
+ { "5413", AR5K_VERSION_RAD, AR5K_SREV_RAD_5413 },
+ { "5424", AR5K_VERSION_RAD, AR5K_SREV_RAD_5424 },
+ { "5133", AR5K_VERSION_RAD, AR5K_SREV_RAD_5133 },
++#ifdef CONFIG_ATHEROS_AR231X
++ { "2316", AR5K_VERSION_RAD, AR5K_SREV_RAD_2316 },
++ { "2317", AR5K_VERSION_RAD, AR5K_SREV_RAD_2317 },
++#endif
+ { "xxxxx", AR5K_VERSION_RAD, AR5K_SREV_UNKNOWN },
};
- #define ADDBA_RESP_INTERVAL HZ
-@@ -265,7 +266,7 @@ struct ieee80211_tx_latency_stat {
- * @last_rx_rate_vht_nss: rx status nss of last data packet
- * @lock: used for locking all fields that require locking, see comments
- * in the header file.
-- * @drv_unblock_wk: used for driver PS unblocking
-+ * @drv_deliver_wk: used for delivering frames after driver PS unblocking
- * @listen_interval: listen interval of this station, when we're acting as AP
- * @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly
- * @ps_lock: used for powersave (when mac80211 is the AP) related locking
-@@ -345,7 +346,7 @@ struct sta_info {
- void *rate_ctrl_priv;
- spinlock_t lock;
-
-- struct work_struct drv_unblock_wk;
-+ struct work_struct drv_deliver_wk;
-
- u16 listen_interval;
-
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -469,7 +469,8 @@ ieee80211_tx_h_unicast_ps_buf(struct iee
- return TX_CONTINUE;
-
- if (unlikely((test_sta_flag(sta, WLAN_STA_PS_STA) ||
-- test_sta_flag(sta, WLAN_STA_PS_DRIVER)) &&
-+ test_sta_flag(sta, WLAN_STA_PS_DRIVER) ||
-+ test_sta_flag(sta, WLAN_STA_PS_DELIVER)) &&
- !(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER))) {
- int ac = skb_get_queue_mapping(tx->skb);
+--- a/drivers/net/wireless/ath/ath5k/led.c
++++ b/drivers/net/wireless/ath/ath5k/led.c
+@@ -163,14 +163,20 @@ int ath5k_init_leds(struct ath5k_hw *ah)
+ {
+ int ret = 0;
+ struct ieee80211_hw *hw = ah->hw;
++#ifndef CONFIG_ATHEROS_AR231X
+ struct pci_dev *pdev = ah->pdev;
++#endif
+ char name[ATH5K_LED_MAX_NAME_LEN + 1];
+ const struct pci_device_id *match;
+
+ if (!ah->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, ah->status);
+ ah->led_pin = ATH_PIN(match->driver_data);
+--- a/drivers/net/wireless/ath/ath5k/debug.c
++++ b/drivers/net/wireless/ath/ath5k/debug.c
+@@ -65,6 +65,7 @@
+
+ #include <linux/seq_file.h>
+ #include <linux/list.h>
++#include <linux/vmalloc.h>
+ #include "debug.h"
+ #include "ath5k.h"
+ #include "reg.h"
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -222,31 +222,28 @@ static void ath9k_hw_read_revisions(stru
+ {
+ u32 val;
-@@ -486,7 +487,8 @@ ieee80211_tx_h_unicast_ps_buf(struct iee
- * ahead and Tx the packet.
- */
- if (!test_sta_flag(sta, WLAN_STA_PS_STA) &&
-- !test_sta_flag(sta, WLAN_STA_PS_DRIVER)) {
-+ !test_sta_flag(sta, WLAN_STA_PS_DRIVER) &&
-+ !test_sta_flag(sta, WLAN_STA_PS_DELIVER)) {
- spin_unlock(&sta->ps_lock);
- return TX_CONTINUE;
++ if (ah->get_mac_revision)
++ ah->hw_version.macRev = ah->get_mac_revision();
++
+ switch (ah->hw_version.devid) {
+ case AR5416_AR9100_DEVID:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9100;
+ break;
+ case AR9300_DEVID_AR9330:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9330;
+- if (ah->get_mac_revision) {
+- ah->hw_version.macRev = ah->get_mac_revision();
+- } else {
++ if (!ah->get_mac_revision) {
+ val = REG_READ(ah, AR_SREV);
+ ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
}
+ return;
+ case AR9300_DEVID_AR9340:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9340;
+- val = REG_READ(ah, AR_SREV);
+- ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
+ return;
+ case AR9300_DEVID_QCA955X:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9550;
+ return;
+ case AR9300_DEVID_AR953X:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9531;
+- if (ah->get_mac_revision)
+- ah->hw_version.macRev = ah->get_mac_revision();
+ return;
+ }
+
+@@ -1192,9 +1189,12 @@ static void ath9k_hw_set_operating_mode(
+
+ switch (opmode) {
+ case NL80211_IFTYPE_ADHOC:
+- set |= AR_STA_ID1_ADHOC;
+- REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
+- break;
++ if (!AR_SREV_9340_13(ah)) {
++ set |= AR_STA_ID1_ADHOC;
++ REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
++ break;
++ }
++ /* fall through */
+ case NL80211_IFTYPE_MESH_POINT:
+ case NL80211_IFTYPE_AP:
+ set |= AR_STA_ID1_STA_AP;
+--- a/drivers/net/wireless/ath/ath9k/reg.h
++++ b/drivers/net/wireless/ath/ath9k/reg.h
+@@ -903,6 +903,10 @@
+ #define AR_SREV_9340(_ah) \
+ (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9340))
+
++#define AR_SREV_9340_13(_ah) \
++ (AR_SREV_9340((_ah)) && \
++ ((_ah)->hw_version.macRev == AR_SREV_REVISION_9340_13))
++
+ #define AR_SREV_9340_13_OR_LATER(_ah) \
+ (AR_SREV_9340((_ah)) && \
+ ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9340_13))