wireless/wl12xx/wl1251: move TI WLAN modules to a common ti subdirectory

Move wl12xx and wl1251 modules into a new drivers/net/wireless/ti
directory.  Add a TI WLAN Kconfig option and Makefile to support this
change.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Cc: John W. Linville <linville@tuxdriver.com>

1 files changed, 0 insertions, 304 deletions

diff --git a/drivers/net/wireless/wl12xx/ps.c b/drivers/net/wireless/wl12xx/ps.c
deleted file mode 100644
index 78f598b4f97b..000000000000
--- a/drivers/net/wireless/wl12xx/ps.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * This file is part of wl1271
- *
- * Copyright (C) 2008-2009 Nokia Corporation
- *
- * Contact: Luciano Coelho <luciano.coelho@nokia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include "reg.h"
-#include "ps.h"
-#include "io.h"
-#include "tx.h"
-#include "debug.h"
-
-#define WL1271_WAKEUP_TIMEOUT 500
-
-void wl1271_elp_work(struct work_struct *work)
-{
-	struct delayed_work *dwork;
-	struct wl1271 *wl;
-	struct wl12xx_vif *wlvif;
-
-	dwork = container_of(work, struct delayed_work, work);
-	wl = container_of(dwork, struct wl1271, elp_work);
-
-	wl1271_debug(DEBUG_PSM, "elp work");
-
-	mutex_lock(&wl->mutex);
-
-	if (unlikely(wl->state == WL1271_STATE_OFF))
-		goto out;
-
-	/* our work might have been already cancelled */
-	if (unlikely(!test_bit(WL1271_FLAG_ELP_REQUESTED, &wl->flags)))
-		goto out;
-
-	if (test_bit(WL1271_FLAG_IN_ELP, &wl->flags))
-		goto out;
-
-	wl12xx_for_each_wlvif(wl, wlvif) {
-		if (wlvif->bss_type == BSS_TYPE_AP_BSS)
-			goto out;
-
-		if (!test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags) &&
-		    test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags))
-			goto out;
-	}
-
-	wl1271_debug(DEBUG_PSM, "chip to elp");
-	wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_SLEEP);
-	set_bit(WL1271_FLAG_IN_ELP, &wl->flags);
-
-out:
-	mutex_unlock(&wl->mutex);
-}
-
-/* Routines to toggle sleep mode while in ELP */
-void wl1271_ps_elp_sleep(struct wl1271 *wl)
-{
-	struct wl12xx_vif *wlvif;
-
-	/* we shouldn't get consecutive sleep requests */
-	if (WARN_ON(test_and_set_bit(WL1271_FLAG_ELP_REQUESTED, &wl->flags)))
-		return;
-
-	wl12xx_for_each_wlvif(wl, wlvif) {
-		if (wlvif->bss_type == BSS_TYPE_AP_BSS)
-			return;
-
-		if (!test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags) &&
-		    test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags))
-			return;
-	}
-
-	ieee80211_queue_delayed_work(wl->hw, &wl->elp_work,
-		msecs_to_jiffies(wl->conf.conn.dynamic_ps_timeout));
-}
-
-int wl1271_ps_elp_wakeup(struct wl1271 *wl)
-{
-	DECLARE_COMPLETION_ONSTACK(compl);
-	unsigned long flags;
-	int ret;
-	u32 start_time = jiffies;
-	bool pending = false;
-
-	/*
-	 * we might try to wake up even if we didn't go to sleep
-	 * before (e.g. on boot)
-	 */
-	if (!test_and_clear_bit(WL1271_FLAG_ELP_REQUESTED, &wl->flags))
-		return 0;
-
-	/* don't cancel_sync as it might contend for a mutex and deadlock */
-	cancel_delayed_work(&wl->elp_work);
-
-	if (!test_bit(WL1271_FLAG_IN_ELP, &wl->flags))
-		return 0;
-
-	wl1271_debug(DEBUG_PSM, "waking up chip from elp");
-
-	/*
-	 * The spinlock is required here to synchronize both the work and
-	 * the completion variable in one entity.
-	 */
-	spin_lock_irqsave(&wl->wl_lock, flags);
-	if (test_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags))
-		pending = true;
-	else
-		wl->elp_compl = &compl;
-	spin_unlock_irqrestore(&wl->wl_lock, flags);
-
-	wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
-
-	if (!pending) {
-		ret = wait_for_completion_timeout(
-			&compl, msecs_to_jiffies(WL1271_WAKEUP_TIMEOUT));
-		if (ret == 0) {
-			wl1271_error("ELP wakeup timeout!");
-			wl12xx_queue_recovery_work(wl);
-			ret = -ETIMEDOUT;
-			goto err;
-		} else if (ret < 0) {
-			wl1271_error("ELP wakeup completion error.");
-			goto err;
-		}
-	}
-
-	clear_bit(WL1271_FLAG_IN_ELP, &wl->flags);
-
-	wl1271_debug(DEBUG_PSM, "wakeup time: %u ms",
-		     jiffies_to_msecs(jiffies - start_time));
-	goto out;
-
-err:
-	spin_lock_irqsave(&wl->wl_lock, flags);
-	wl->elp_compl = NULL;
-	spin_unlock_irqrestore(&wl->wl_lock, flags);
-	return ret;
-
-out:
-	return 0;
-}
-
-int wl1271_ps_set_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-		       enum wl1271_cmd_ps_mode mode)
-{
-	int ret;
-	u16 timeout = wl->conf.conn.dynamic_ps_timeout;
-
-	switch (mode) {
-	case STATION_AUTO_PS_MODE:
-	case STATION_POWER_SAVE_MODE:
-		wl1271_debug(DEBUG_PSM, "entering psm (mode=%d,timeout=%u)",
-			     mode, timeout);
-
-		ret = wl1271_acx_wake_up_conditions(wl, wlvif,
-					    wl->conf.conn.wake_up_event,
-					    wl->conf.conn.listen_interval);
-		if (ret < 0) {
-			wl1271_error("couldn't set wake up conditions");
-			return ret;
-		}
-
-		ret = wl1271_cmd_ps_mode(wl, wlvif, mode, timeout);
-		if (ret < 0)
-			return ret;
-
-		set_bit(WLVIF_FLAG_IN_PS, &wlvif->flags);
-
-		/* enable beacon early termination. Not relevant for 5GHz */
-		if (wlvif->band == IEEE80211_BAND_2GHZ) {
-			ret = wl1271_acx_bet_enable(wl, wlvif, true);
-			if (ret < 0)
-				return ret;
-		}
-		break;
-	case STATION_ACTIVE_MODE:
-		wl1271_debug(DEBUG_PSM, "leaving psm");
-
-		/* disable beacon early termination */
-		if (wlvif->band == IEEE80211_BAND_2GHZ) {
-			ret = wl1271_acx_bet_enable(wl, wlvif, false);
-			if (ret < 0)
-				return ret;
-		}
-
-		ret = wl1271_cmd_ps_mode(wl, wlvif, mode, 0);
-		if (ret < 0)
-			return ret;
-
-		clear_bit(WLVIF_FLAG_IN_PS, &wlvif->flags);
-		break;
-	default:
-		wl1271_warning("trying to set ps to unsupported mode %d", mode);
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static void wl1271_ps_filter_frames(struct wl1271 *wl, u8 hlid)
-{
-	int i;
-	struct sk_buff *skb;
-	struct ieee80211_tx_info *info;
-	unsigned long flags;
-	int filtered[NUM_TX_QUEUES];
-
-	/* filter all frames currently in the low level queues for this hlid */
-	for (i = 0; i < NUM_TX_QUEUES; i++) {
-		filtered[i] = 0;
-		while ((skb = skb_dequeue(&wl->links[hlid].tx_queue[i]))) {
-			filtered[i]++;
-
-			if (WARN_ON(wl12xx_is_dummy_packet(wl, skb)))
-				continue;
-
-			info = IEEE80211_SKB_CB(skb);
-			info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
-			info->status.rates[0].idx = -1;
-			ieee80211_tx_status_ni(wl->hw, skb);
-		}
-	}
-
-	spin_lock_irqsave(&wl->wl_lock, flags);
-	for (i = 0; i < NUM_TX_QUEUES; i++)
-		wl->tx_queue_count[i] -= filtered[i];
-	spin_unlock_irqrestore(&wl->wl_lock, flags);
-
-	wl1271_handle_tx_low_watermark(wl);
-}
-
-void wl12xx_ps_link_start(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-			  u8 hlid, bool clean_queues)
-{
-	struct ieee80211_sta *sta;
-	struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
-
-	if (test_bit(hlid, &wl->ap_ps_map))
-		return;
-
-	wl1271_debug(DEBUG_PSM, "start mac80211 PSM on hlid %d pkts %d "
-		     "clean_queues %d", hlid, wl->links[hlid].allocated_pkts,
-		     clean_queues);
-
-	rcu_read_lock();
-	sta = ieee80211_find_sta(vif, wl->links[hlid].addr);
-	if (!sta) {
-		wl1271_error("could not find sta %pM for starting ps",
-			     wl->links[hlid].addr);
-		rcu_read_unlock();
-		return;
-	}
-
-	ieee80211_sta_ps_transition_ni(sta, true);
-	rcu_read_unlock();
-
-	/* do we want to filter all frames from this link's queues? */
-	if (clean_queues)
-		wl1271_ps_filter_frames(wl, hlid);
-
-	__set_bit(hlid, &wl->ap_ps_map);
-}
-
-void wl12xx_ps_link_end(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid)
-{
-	struct ieee80211_sta *sta;
-	struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
-
-	if (!test_bit(hlid, &wl->ap_ps_map))
-		return;
-
-	wl1271_debug(DEBUG_PSM, "end mac80211 PSM on hlid %d", hlid);
-
-	__clear_bit(hlid, &wl->ap_ps_map);
-
-	rcu_read_lock();
-	sta = ieee80211_find_sta(vif, wl->links[hlid].addr);
-	if (!sta) {
-		wl1271_error("could not find sta %pM for ending ps",
-			     wl->links[hlid].addr);
-		goto end;
-	}
-
-	ieee80211_sta_ps_transition_ni(sta, false);
-end:
-	rcu_read_unlock();
-}