1 files changed, 133 insertions, 85 deletions

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index fd9a61834c17..ee951493e993 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -18,11 +18,12 @@
 
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
-#include <linux/ath9k_platform.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_net.h>
+#include <linux/nvmem-consumer.h>
 #include <linux/relay.h>
+#include <linux/dmi.h>
 #include <net/ieee80211_radiotap.h>
 
 #include "ath9k.h"
@@ -36,7 +37,6 @@ static char *dev_info = "ath9k";
 
 MODULE_AUTHOR("Atheros Communications");
 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
-MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
 MODULE_LICENSE("Dual BSD/GPL");
 
 static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
@@ -75,6 +75,10 @@ MODULE_PARM_DESC(use_chanctx, "Enable channel context for concurrency");
 
 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
 
+int ath9k_use_msi;
+module_param_named(use_msi, ath9k_use_msi, int, 0444);
+MODULE_PARM_DESC(use_msi, "Use MSI instead of INTx if possible");
+
 bool is_ath9k_unloaded;
 
 #ifdef CONFIG_MAC80211_LEDS
@@ -92,19 +96,69 @@ static const struct ieee80211_tpt_blink ath9k_tpt_blink[] = {
 };
 #endif
 
+static int __init set_use_msi(const struct dmi_system_id *dmi)
+{
+	ath9k_use_msi = 1;
+	return 1;
+}
+
+static const struct dmi_system_id ath9k_quirks[] __initconst = {
+	{
+		.callback = set_use_msi,
+		.ident = "Dell Inspiron 24-3460",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 24-3460"),
+		},
+	},
+	{
+		.callback = set_use_msi,
+		.ident = "Dell Vostro 3262",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3262"),
+		},
+	},
+	{
+		.callback = set_use_msi,
+		.ident = "Dell Inspiron 3472",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3472"),
+		},
+	},
+	{
+		.callback = set_use_msi,
+		.ident = "Dell Vostro 15-3572",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 15-3572"),
+		},
+	},
+	{
+		.callback = set_use_msi,
+		.ident = "Dell Inspiron 14-3473",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 14-3473"),
+		},
+	},
+	{}
+};
+
 static void ath9k_deinit_softc(struct ath_softc *sc);
 
 static void ath9k_op_ps_wakeup(struct ath_common *common)
 {
-	ath9k_ps_wakeup((struct ath_softc *) common->priv);
+	ath9k_ps_wakeup(common->priv);
 }
 
 static void ath9k_op_ps_restore(struct ath_common *common)
 {
-	ath9k_ps_restore((struct ath_softc *) common->priv);
+	ath9k_ps_restore(common->priv);
 }
 
-static struct ath_ps_ops ath9k_ps_ops = {
+static const struct ath_ps_ops ath9k_ps_ops = {
 	.wakeup = ath9k_op_ps_wakeup,
 	.restore = ath9k_op_ps_restore,
 };
@@ -117,9 +171,9 @@ static struct ath_ps_ops ath9k_ps_ops = {
 
 static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
 {
-	struct ath_hw *ah = (struct ath_hw *) hw_priv;
+	struct ath_hw *ah = hw_priv;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_softc *sc = (struct ath_softc *) common->priv;
+	struct ath_softc *sc = common->priv;
 
 	if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_ON) {
 		unsigned long flags;
@@ -132,9 +186,9 @@ static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
 
 static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
 {
-	struct ath_hw *ah = (struct ath_hw *) hw_priv;
+	struct ath_hw *ah = hw_priv;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_softc *sc = (struct ath_softc *) common->priv;
+	struct ath_softc *sc = common->priv;
 	u32 val;
 
 	if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_ON) {
@@ -172,10 +226,10 @@ static unsigned int __ath9k_reg_rmw(struct ath_softc *sc, u32 reg_offset,
 
 static unsigned int ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
 {
-	struct ath_hw *ah = (struct ath_hw *) hw_priv;
+	struct ath_hw *ah = hw_priv;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_softc *sc = (struct ath_softc *) common->priv;
-	unsigned long uninitialized_var(flags);
+	struct ath_softc *sc = common->priv;
+	unsigned long flags;
 	u32 val;
 
 	if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_ON) {
@@ -202,6 +256,11 @@ static void ath9k_reg_notifier(struct wiphy *wiphy,
 
 	ath_reg_notifier_apply(wiphy, request, reg);
 
+	/* synchronize DFS detector if regulatory domain changed */
+	if (sc->dfs_detector != NULL)
+		sc->dfs_detector->set_dfs_domain(sc->dfs_detector,
+						 request->dfs_region);
+
 	/* Set tx power */
 	if (!ah->curchan)
 		return;
@@ -212,10 +271,6 @@ static void ath9k_reg_notifier(struct wiphy *wiphy,
 	ath9k_cmn_update_txpow(ah, sc->cur_chan->cur_txpower,
 			       sc->cur_chan->txpower,
 			       &sc->cur_chan->cur_txpower);
-	/* synchronize DFS detector if regulatory domain changed */
-	if (sc->dfs_detector != NULL)
-		sc->dfs_detector->set_dfs_domain(sc->dfs_detector,
-						 request->dfs_region);
 	ath9k_ps_restore(sc);
 }
 
@@ -275,7 +330,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
 	if (!dd->dd_desc)
 		return -ENOMEM;
 
-	ds = (u8 *) dd->dd_desc;
+	ds = dd->dd_desc;
 	ath_dbg(common, CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n",
 		name, ds, (u32) dd->dd_desc_len,
 		ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
@@ -369,10 +424,10 @@ static void ath9k_init_misc(struct ath_softc *sc)
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	int i = 0;
 
-	setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc);
+	timer_setup(&common->ani.timer, ath_ani_calibrate, 0);
 
 	common->last_rssi = ATH_RSSI_DUMMY_MARKER;
-	memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
+	eth_broadcast_addr(common->bssidmask);
 	sc->beacon.slottime = 9;
 
 	for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++)
@@ -513,45 +568,53 @@ static void ath9k_eeprom_release(struct ath_softc *sc)
 	release_firmware(sc->sc_ah->eeprom_blob);
 }
 
-static int ath9k_init_platform(struct ath_softc *sc)
+static int ath9k_nvmem_request_eeprom(struct ath_softc *sc)
 {
-	struct ath9k_platform_data *pdata = sc->dev->platform_data;
 	struct ath_hw *ah = sc->sc_ah;
-	struct ath_common *common = ath9k_hw_common(ah);
-	int ret;
+	struct nvmem_cell *cell;
+	void *buf;
+	size_t len;
+	int err;
 
-	if (!pdata)
-		return 0;
+	cell = devm_nvmem_cell_get(sc->dev, "calibration");
+	if (IS_ERR(cell)) {
+		err = PTR_ERR(cell);
 
-	if (!pdata->use_eeprom) {
-		ah->ah_flags &= ~AH_USE_EEPROM;
-		ah->gpio_mask = pdata->gpio_mask;
-		ah->gpio_val = pdata->gpio_val;
-		ah->led_pin = pdata->led_pin;
-		ah->is_clk_25mhz = pdata->is_clk_25mhz;
-		ah->get_mac_revision = pdata->get_mac_revision;
-		ah->external_reset = pdata->external_reset;
-		ah->disable_2ghz = pdata->disable_2ghz;
-		ah->disable_5ghz = pdata->disable_5ghz;
-
-		if (!pdata->endian_check)
-			ah->ah_flags |= AH_NO_EEP_SWAP;
-	}
+		/* nvmem cell might not be defined, or the nvmem
+		 * subsystem isn't included. In this case, follow
+		 * the established "just return 0;" convention
+		 * to say:
+		 * "All good. Nothing to see here. Please go on."
+		 */
+		if (err == -ENOENT || err == -EOPNOTSUPP)
+			return 0;
 
-	if (pdata->eeprom_name) {
-		ret = ath9k_eeprom_request(sc, pdata->eeprom_name);
-		if (ret)
-			return ret;
+		return err;
 	}
 
-	if (pdata->led_active_high)
-		ah->config.led_active_high = true;
+	buf = nvmem_cell_read(cell, &len);
+	if (IS_ERR(buf))
+		return PTR_ERR(buf);
+
+	/* run basic sanity checks on the returned nvram cell length.
+	 * That length has to be a multiple of a "u16" (i.e.: & 1).
+	 * Furthermore, it has to be more than "let's say" 512 bytes
+	 * but less than the maximum of AR9300_EEPROM_SIZE (16kb).
+	 */
+	if ((len & 1) == 1 || len < 512 || len >= AR9300_EEPROM_SIZE) {
+		kfree(buf);
+		return -EINVAL;
+	}
 
-	if (pdata->tx_gain_buffalo)
-		ah->config.tx_gain_buffalo = true;
+	/* devres manages the calibration values release on shutdown */
+	ah->nvmem_blob = devm_kmemdup(sc->dev, buf, len, GFP_KERNEL);
+	kfree(buf);
+	if (!ah->nvmem_blob)
+		return -ENOMEM;
 
-	if (pdata->macaddr)
-		ether_addr_copy(common->macaddr, pdata->macaddr);
+	ah->nvmem_blob_len = len;
+	ah->ah_flags &= ~AH_USE_EEPROM;
+	ah->ah_flags |= AH_NO_EEP_SWAP;
 
 	return 0;
 }
@@ -562,7 +625,6 @@ static int ath9k_of_init(struct ath_softc *sc)
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	enum ath_bus_type bus_type = common->bus_ops->ath_bus_type;
-	const char *mac;
 	char eeprom_name[100];
 	int ret;
 
@@ -580,14 +642,14 @@ static int ath9k_of_init(struct ath_softc *sc)
 		ret = ath9k_eeprom_request(sc, eeprom_name);
 		if (ret)
 			return ret;
-	}
 
-	mac = of_get_mac_address(np);
-	if (mac)
-		ether_addr_copy(common->macaddr, mac);
+		ah->ah_flags &= ~AH_USE_EEPROM;
+		ah->ah_flags |= AH_NO_EEP_SWAP;
+	}
 
-	ah->ah_flags &= ~AH_USE_EEPROM;
-	ah->ah_flags |= AH_NO_EEP_SWAP;
+	ret = of_get_mac_address(np, common->macaddr);
+	if (ret == -EPROBE_DEFER)
+		return ret;
 
 	return 0;
 }
@@ -620,8 +682,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 
 	/* Will be cleared in ath9k_start() */
 	set_bit(ATH_OP_INVALID, &common->op_flags);
-	sc->airtime_flags = (AIRTIME_USE_TX | AIRTIME_USE_RX |
-			     AIRTIME_USE_NEW_QUEUES);
 
 	sc->sc_ah = ah;
 	sc->dfs_detector = dfs_pattern_detector_init(common, NL80211_DFS_UNSET);
@@ -646,11 +706,11 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	 */
 	ath9k_init_pcoem_platform(sc);
 
-	ret = ath9k_init_platform(sc);
+	ret = ath9k_of_init(sc);
 	if (ret)
 		return ret;
 
-	ret = ath9k_of_init(sc);
+	ret = ath9k_nvmem_request_eeprom(sc);
 	if (ret)
 		return ret;
 
@@ -674,11 +734,10 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	spin_lock_init(&sc->sc_pm_lock);
 	spin_lock_init(&sc->chan_lock);
 	mutex_init(&sc->mutex);
-	tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
-	tasklet_init(&sc->bcon_tasklet, ath9k_beacon_tasklet,
-		     (unsigned long)sc);
+	tasklet_setup(&sc->intr_tq, ath9k_tasklet);
+	tasklet_setup(&sc->bcon_tasklet, ath9k_beacon_tasklet);
 
-	setup_timer(&sc->sleep_timer, ath_ps_full_sleep, (unsigned long)sc);
+	timer_setup(&sc->sleep_timer, ath_ps_full_sleep, 0);
 	INIT_WORK(&sc->hw_reset_work, ath_reset_work);
 	INIT_WORK(&sc->paprd_work, ath_paprd_calibrate);
 	INIT_DELAYED_WORK(&sc->hw_pll_work, ath_hw_pll_work);
@@ -751,7 +810,7 @@ static void ath9k_init_band_txpower(struct ath_softc *sc, int band)
 		ah->curchan = &ah->channels[chan->hw_value];
 		cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_HT20);
 		ath9k_cmn_get_channel(sc->hw, ah, &chandef);
-		ath9k_hw_set_txpowerlimit(ah, MAX_RATE_POWER, true);
+		ath9k_hw_set_txpowerlimit(ah, MAX_COMBINED_POWER, true);
 	}
 }
 
@@ -779,12 +838,6 @@ static const struct ieee80211_iface_limit if_limits[] = {
 				 BIT(NL80211_IFTYPE_P2P_GO) },
 };
 
-#ifdef CONFIG_WIRELESS_WDS
-static const struct ieee80211_iface_limit wds_limits[] = {
-	{ .max = 2048,	.types = BIT(NL80211_IFTYPE_WDS) },
-};
-#endif
-
 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
 
 static const struct ieee80211_iface_limit if_limits_multi[] = {
@@ -821,15 +874,6 @@ static const struct ieee80211_iface_combination if_comb[] = {
 					BIT(NL80211_CHAN_WIDTH_40),
 #endif
 	},
-#ifdef CONFIG_WIRELESS_WDS
-	{
-		.limits = wds_limits,
-		.n_limits = ARRAY_SIZE(wds_limits),
-		.max_interfaces = 2048,
-		.num_different_channels = 1,
-		.beacon_int_infra_match = true,
-	},
-#endif
 };
 
 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
@@ -844,7 +888,6 @@ static void ath9k_set_mcc_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	ieee80211_hw_set(hw, QUEUE_CONTROL);
 	hw->queues = ATH9K_NUM_TX_QUEUES;
 	hw->offchannel_tx_hw_queue = hw->queues - 1;
-	hw->wiphy->interface_modes &= ~ BIT(NL80211_IFTYPE_WDS);
 	hw->wiphy->iface_combinations = if_comb_multi;
 	hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb_multi);
 	hw->wiphy->max_scan_ssids = 255;
@@ -900,9 +943,6 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 			BIT(NL80211_IFTYPE_STATION) |
 			BIT(NL80211_IFTYPE_ADHOC) |
 			BIT(NL80211_IFTYPE_MESH_POINT) |
-#ifdef CONFIG_WIRELESS_WDS
-			BIT(NL80211_IFTYPE_WDS) |
-#endif
 			BIT(NL80211_IFTYPE_OCB);
 
 		if (ath9k_is_chanctx_enabled())
@@ -957,6 +997,10 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 
 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
+	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_AIRTIME_FAIRNESS);
+	wiphy_ext_feature_set(hw->wiphy,
+			      NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
+	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0);
 }
 
 int ath9k_init_device(u16 devid, struct ath_softc *sc,
@@ -1004,6 +1048,8 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc,
 		ARRAY_SIZE(ath9k_tpt_blink));
 #endif
 
+	wiphy_read_of_freq_limits(hw->wiphy);
+
 	/* Register with mac80211 */
 	error = ieee80211_register_hw(hw);
 	if (error)
@@ -1053,7 +1099,7 @@ static void ath9k_deinit_softc(struct ath_softc *sc)
 		if (ATH_TXQ_SETUP(sc, i))
 			ath_tx_cleanupq(sc, &sc->tx.txq[i]);
 
-	del_timer_sync(&sc->sleep_timer);
+	timer_delete_sync(&sc->sleep_timer);
 	ath9k_hw_deinit(sc->sc_ah);
 	if (sc->dfs_detector != NULL)
 		sc->dfs_detector->exit(sc->dfs_detector);
@@ -1100,6 +1146,8 @@ static int __init ath9k_init(void)
 		goto err_pci_exit;
 	}
 
+	dmi_check_system(ath9k_quirks);
+
 	return 0;
 
  err_pci_exit: