iwlegacy: merge common .c files

Merge iwl-{tx,rx,sta,scan,power,eeprom,led,hcmd}.c into common.c .

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>

1 files changed, 0 insertions, 545 deletions

diff --git a/drivers/net/wireless/iwlegacy/iwl-scan.c b/drivers/net/wireless/iwlegacy/iwl-scan.c
deleted file mode 100644
index aaa589abbe33..000000000000
--- a/drivers/net/wireless/iwlegacy/iwl-scan.c
+++ /dev/null
@@ -1,545 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License 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 Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/etherdevice.h>
-#include <net/mac80211.h>
-
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-
-/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
- * sending probe req.  This should be set long enough to hear probe responses
- * from more than one AP.  */
-#define IL_ACTIVE_DWELL_TIME_24    (30)       /* all times in msec */
-#define IL_ACTIVE_DWELL_TIME_52    (20)
-
-#define IL_ACTIVE_DWELL_FACTOR_24GHZ (3)
-#define IL_ACTIVE_DWELL_FACTOR_52GHZ (2)
-
-/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
- * Must be set longer than active dwell time.
- * For the most reliable scan, set > AP beacon interval (typically 100msec). */
-#define IL_PASSIVE_DWELL_TIME_24   (20)       /* all times in msec */
-#define IL_PASSIVE_DWELL_TIME_52   (10)
-#define IL_PASSIVE_DWELL_BASE      (100)
-#define IL_CHANNEL_TUNE_TIME       5
-
-static int il_send_scan_abort(struct il_priv *il)
-{
-	int ret;
-	struct il_rx_pkt *pkt;
-	struct il_host_cmd cmd = {
-		.id = C_SCAN_ABORT,
-		.flags = CMD_WANT_SKB,
-	};
-
-	/* Exit instantly with error when device is not ready
-	 * to receive scan abort command or it does not perform
-	 * hardware scan currently */
-	if (!test_bit(S_READY, &il->status) ||
-	    !test_bit(S_GEO_CONFIGURED, &il->status) ||
-	    !test_bit(S_SCAN_HW, &il->status) ||
-	    test_bit(S_FW_ERROR, &il->status) ||
-	    test_bit(S_EXIT_PENDING, &il->status))
-		return -EIO;
-
-	ret = il_send_cmd_sync(il, &cmd);
-	if (ret)
-		return ret;
-
-	pkt = (struct il_rx_pkt *)cmd.reply_page;
-	if (pkt->u.status != CAN_ABORT_STATUS) {
-		/* The scan abort will return 1 for success or
-		 * 2 for "failure".  A failure condition can be
-		 * due to simply not being in an active scan which
-		 * can occur if we send the scan abort before we
-		 * the microcode has notified us that a scan is
-		 * completed. */
-		D_SCAN("SCAN_ABORT ret %d.\n", pkt->u.status);
-		ret = -EIO;
-	}
-
-	il_free_pages(il, cmd.reply_page);
-	return ret;
-}
-
-static void il_complete_scan(struct il_priv *il, bool aborted)
-{
-	/* check if scan was requested from mac80211 */
-	if (il->scan_request) {
-		D_SCAN("Complete scan in mac80211\n");
-		ieee80211_scan_completed(il->hw, aborted);
-	}
-
-	il->scan_vif = NULL;
-	il->scan_request = NULL;
-}
-
-void il_force_scan_end(struct il_priv *il)
-{
-	lockdep_assert_held(&il->mutex);
-
-	if (!test_bit(S_SCANNING, &il->status)) {
-		D_SCAN("Forcing scan end while not scanning\n");
-		return;
-	}
-
-	D_SCAN("Forcing scan end\n");
-	clear_bit(S_SCANNING, &il->status);
-	clear_bit(S_SCAN_HW, &il->status);
-	clear_bit(S_SCAN_ABORTING, &il->status);
-	il_complete_scan(il, true);
-}
-
-static void il_do_scan_abort(struct il_priv *il)
-{
-	int ret;
-
-	lockdep_assert_held(&il->mutex);
-
-	if (!test_bit(S_SCANNING, &il->status)) {
-		D_SCAN("Not performing scan to abort\n");
-		return;
-	}
-
-	if (test_and_set_bit(S_SCAN_ABORTING, &il->status)) {
-		D_SCAN("Scan abort in progress\n");
-		return;
-	}
-
-	ret = il_send_scan_abort(il);
-	if (ret) {
-		D_SCAN("Send scan abort failed %d\n", ret);
-		il_force_scan_end(il);
-	} else
-		D_SCAN("Successfully send scan abort\n");
-}
-
-/**
- * il_scan_cancel - Cancel any currently executing HW scan
- */
-int il_scan_cancel(struct il_priv *il)
-{
-	D_SCAN("Queuing abort scan\n");
-	queue_work(il->workqueue, &il->abort_scan);
-	return 0;
-}
-EXPORT_SYMBOL(il_scan_cancel);
-
-/**
- * il_scan_cancel_timeout - Cancel any currently executing HW scan
- * @ms: amount of time to wait (in milliseconds) for scan to abort
- *
- */
-int il_scan_cancel_timeout(struct il_priv *il, unsigned long ms)
-{
-	unsigned long timeout = jiffies + msecs_to_jiffies(ms);
-
-	lockdep_assert_held(&il->mutex);
-
-	D_SCAN("Scan cancel timeout\n");
-
-	il_do_scan_abort(il);
-
-	while (time_before_eq(jiffies, timeout)) {
-		if (!test_bit(S_SCAN_HW, &il->status))
-			break;
-		msleep(20);
-	}
-
-	return test_bit(S_SCAN_HW, &il->status);
-}
-EXPORT_SYMBOL(il_scan_cancel_timeout);
-
-/* Service response to C_SCAN (0x80) */
-static void il_hdl_scan(struct il_priv *il,
-			      struct il_rx_buf *rxb)
-{
-#ifdef CONFIG_IWLEGACY_DEBUG
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-	struct il_scanreq_notification *notif =
-	    (struct il_scanreq_notification *)pkt->u.raw;
-
-	D_SCAN("Scan request status = 0x%x\n", notif->status);
-#endif
-}
-
-/* Service N_SCAN_START (0x82) */
-static void il_hdl_scan_start(struct il_priv *il,
-				    struct il_rx_buf *rxb)
-{
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-	struct il_scanstart_notification *notif =
-	    (struct il_scanstart_notification *)pkt->u.raw;
-	il->scan_start_tsf = le32_to_cpu(notif->tsf_low);
-	D_SCAN("Scan start: "
-		       "%d [802.11%s] "
-		       "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
-		       notif->channel,
-		       notif->band ? "bg" : "a",
-		       le32_to_cpu(notif->tsf_high),
-		       le32_to_cpu(notif->tsf_low),
-		       notif->status, notif->beacon_timer);
-}
-
-/* Service N_SCAN_RESULTS (0x83) */
-static void il_hdl_scan_results(struct il_priv *il,
-				      struct il_rx_buf *rxb)
-{
-#ifdef CONFIG_IWLEGACY_DEBUG
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-	struct il_scanresults_notification *notif =
-	    (struct il_scanresults_notification *)pkt->u.raw;
-
-	D_SCAN("Scan ch.res: "
-		       "%d [802.11%s] "
-		       "(TSF: 0x%08X:%08X) - %d "
-		       "elapsed=%lu usec\n",
-		       notif->channel,
-		       notif->band ? "bg" : "a",
-		       le32_to_cpu(notif->tsf_high),
-		       le32_to_cpu(notif->tsf_low),
-		       le32_to_cpu(notif->stats[0]),
-		       le32_to_cpu(notif->tsf_low) - il->scan_start_tsf);
-#endif
-}
-
-/* Service N_SCAN_COMPLETE (0x84) */
-static void il_hdl_scan_complete(struct il_priv *il,
-				       struct il_rx_buf *rxb)
-{
-
-#ifdef CONFIG_IWLEGACY_DEBUG
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-	struct il_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
-#endif
-
-	D_SCAN(
-			"Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
-		       scan_notif->scanned_channels,
-		       scan_notif->tsf_low,
-		       scan_notif->tsf_high, scan_notif->status);
-
-	/* The HW is no longer scanning */
-	clear_bit(S_SCAN_HW, &il->status);
-
-	D_SCAN("Scan on %sGHz took %dms\n",
-		       (il->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2",
-		       jiffies_to_msecs(jiffies - il->scan_start));
-
-	queue_work(il->workqueue, &il->scan_completed);
-}
-
-void il_setup_rx_scan_handlers(struct il_priv *il)
-{
-	/* scan handlers */
-	il->handlers[C_SCAN] = il_hdl_scan;
-	il->handlers[N_SCAN_START] =
-					il_hdl_scan_start;
-	il->handlers[N_SCAN_RESULTS] =
-					il_hdl_scan_results;
-	il->handlers[N_SCAN_COMPLETE] =
-					il_hdl_scan_complete;
-}
-EXPORT_SYMBOL(il_setup_rx_scan_handlers);
-
-inline u16 il_get_active_dwell_time(struct il_priv *il,
-				     enum ieee80211_band band,
-				     u8 n_probes)
-{
-	if (band == IEEE80211_BAND_5GHZ)
-		return IL_ACTIVE_DWELL_TIME_52 +
-			IL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
-	else
-		return IL_ACTIVE_DWELL_TIME_24 +
-			IL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
-}
-EXPORT_SYMBOL(il_get_active_dwell_time);
-
-u16 il_get_passive_dwell_time(struct il_priv *il,
-			       enum ieee80211_band band,
-			       struct ieee80211_vif *vif)
-{
-	struct il_rxon_context *ctx = &il->ctx;
-	u16 value;
-
-	u16 passive = (band == IEEE80211_BAND_2GHZ) ?
-	    IL_PASSIVE_DWELL_BASE + IL_PASSIVE_DWELL_TIME_24 :
-	    IL_PASSIVE_DWELL_BASE + IL_PASSIVE_DWELL_TIME_52;
-
-	if (il_is_any_associated(il)) {
-		/*
-		 * If we're associated, we clamp the maximum passive
-		 * dwell time to be 98% of the smallest beacon interval
-		 * (minus 2 * channel tune time)
-		 */
-		value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0;
-		if (value > IL_PASSIVE_DWELL_BASE || !value)
-			value = IL_PASSIVE_DWELL_BASE;
-		value = (value * 98) / 100 - IL_CHANNEL_TUNE_TIME * 2;
-		passive = min(value, passive);
-	}
-
-	return passive;
-}
-EXPORT_SYMBOL(il_get_passive_dwell_time);
-
-void il_init_scan_params(struct il_priv *il)
-{
-	u8 ant_idx = fls(il->hw_params.valid_tx_ant) - 1;
-	if (!il->scan_tx_ant[IEEE80211_BAND_5GHZ])
-		il->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx;
-	if (!il->scan_tx_ant[IEEE80211_BAND_2GHZ])
-		il->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
-}
-EXPORT_SYMBOL(il_init_scan_params);
-
-static int il_scan_initiate(struct il_priv *il,
-				    struct ieee80211_vif *vif)
-{
-	int ret;
-
-	lockdep_assert_held(&il->mutex);
-
-	if (WARN_ON(!il->cfg->ops->utils->request_scan))
-		return -EOPNOTSUPP;
-
-	cancel_delayed_work(&il->scan_check);
-
-	if (!il_is_ready_rf(il)) {
-		IL_WARN("Request scan called when driver not ready.\n");
-		return -EIO;
-	}
-
-	if (test_bit(S_SCAN_HW, &il->status)) {
-		D_SCAN(
-			"Multiple concurrent scan requests in parallel.\n");
-		return -EBUSY;
-	}
-
-	if (test_bit(S_SCAN_ABORTING, &il->status)) {
-		D_SCAN("Scan request while abort pending.\n");
-		return -EBUSY;
-	}
-
-	D_SCAN("Starting scan...\n");
-
-	set_bit(S_SCANNING, &il->status);
-	il->scan_start = jiffies;
-
-	ret = il->cfg->ops->utils->request_scan(il, vif);
-	if (ret) {
-		clear_bit(S_SCANNING, &il->status);
-		return ret;
-	}
-
-	queue_delayed_work(il->workqueue, &il->scan_check,
-			   IL_SCAN_CHECK_WATCHDOG);
-
-	return 0;
-}
-
-int il_mac_hw_scan(struct ieee80211_hw *hw,
-		    struct ieee80211_vif *vif,
-		    struct cfg80211_scan_request *req)
-{
-	struct il_priv *il = hw->priv;
-	int ret;
-
-	D_MAC80211("enter\n");
-
-	if (req->n_channels == 0)
-		return -EINVAL;
-
-	mutex_lock(&il->mutex);
-
-	if (test_bit(S_SCANNING, &il->status)) {
-		D_SCAN("Scan already in progress.\n");
-		ret = -EAGAIN;
-		goto out_unlock;
-	}
-
-	/* mac80211 will only ask for one band at a time */
-	il->scan_request = req;
-	il->scan_vif = vif;
-	il->scan_band = req->channels[0]->band;
-
-	ret = il_scan_initiate(il, vif);
-
-	D_MAC80211("leave\n");
-
-out_unlock:
-	mutex_unlock(&il->mutex);
-
-	return ret;
-}
-EXPORT_SYMBOL(il_mac_hw_scan);
-
-static void il_bg_scan_check(struct work_struct *data)
-{
-	struct il_priv *il =
-	    container_of(data, struct il_priv, scan_check.work);
-
-	D_SCAN("Scan check work\n");
-
-	/* Since we are here firmware does not finish scan and
-	 * most likely is in bad shape, so we don't bother to
-	 * send abort command, just force scan complete to mac80211 */
-	mutex_lock(&il->mutex);
-	il_force_scan_end(il);
-	mutex_unlock(&il->mutex);
-}
-
-/**
- * il_fill_probe_req - fill in all required fields and IE for probe request
- */
-
-u16
-il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame,
-		       const u8 *ta, const u8 *ies, int ie_len, int left)
-{
-	int len = 0;
-	u8 *pos = NULL;
-
-	/* Make sure there is enough space for the probe request,
-	 * two mandatory IEs and the data */
-	left -= 24;
-	if (left < 0)
-		return 0;
-
-	frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
-	memcpy(frame->da, il_bcast_addr, ETH_ALEN);
-	memcpy(frame->sa, ta, ETH_ALEN);
-	memcpy(frame->bssid, il_bcast_addr, ETH_ALEN);
-	frame->seq_ctrl = 0;
-
-	len += 24;
-
-	/* ...next IE... */
-	pos = &frame->u.probe_req.variable[0];
-
-	/* fill in our indirect SSID IE */
-	left -= 2;
-	if (left < 0)
-		return 0;
-	*pos++ = WLAN_EID_SSID;
-	*pos++ = 0;
-
-	len += 2;
-
-	if (WARN_ON(left < ie_len))
-		return len;
-
-	if (ies && ie_len) {
-		memcpy(pos, ies, ie_len);
-		len += ie_len;
-	}
-
-	return (u16)len;
-}
-EXPORT_SYMBOL(il_fill_probe_req);
-
-static void il_bg_abort_scan(struct work_struct *work)
-{
-	struct il_priv *il = container_of(work, struct il_priv, abort_scan);
-
-	D_SCAN("Abort scan work\n");
-
-	/* We keep scan_check work queued in case when firmware will not
-	 * report back scan completed notification */
-	mutex_lock(&il->mutex);
-	il_scan_cancel_timeout(il, 200);
-	mutex_unlock(&il->mutex);
-}
-
-static void il_bg_scan_completed(struct work_struct *work)
-{
-	struct il_priv *il =
-	    container_of(work, struct il_priv, scan_completed);
-	bool aborted;
-
-	D_SCAN("Completed scan.\n");
-
-	cancel_delayed_work(&il->scan_check);
-
-	mutex_lock(&il->mutex);
-
-	aborted = test_and_clear_bit(S_SCAN_ABORTING, &il->status);
-	if (aborted)
-		D_SCAN("Aborted scan completed.\n");
-
-	if (!test_and_clear_bit(S_SCANNING, &il->status)) {
-		D_SCAN("Scan already completed.\n");
-		goto out_settings;
-	}
-
-	il_complete_scan(il, aborted);
-
-out_settings:
-	/* Can we still talk to firmware ? */
-	if (!il_is_ready_rf(il))
-		goto out;
-
-	/*
-	 * We do not commit power settings while scan is pending,
-	 * do it now if the settings changed.
-	 */
-	il_power_set_mode(il, &il->power_data.sleep_cmd_next, false);
-	il_set_tx_power(il, il->tx_power_next, false);
-
-	il->cfg->ops->utils->post_scan(il);
-
-out:
-	mutex_unlock(&il->mutex);
-}
-
-void il_setup_scan_deferred_work(struct il_priv *il)
-{
-	INIT_WORK(&il->scan_completed, il_bg_scan_completed);
-	INIT_WORK(&il->abort_scan, il_bg_abort_scan);
-	INIT_DELAYED_WORK(&il->scan_check, il_bg_scan_check);
-}
-EXPORT_SYMBOL(il_setup_scan_deferred_work);
-
-void il_cancel_scan_deferred_work(struct il_priv *il)
-{
-	cancel_work_sync(&il->abort_scan);
-	cancel_work_sync(&il->scan_completed);
-
-	if (cancel_delayed_work_sync(&il->scan_check)) {
-		mutex_lock(&il->mutex);
-		il_force_scan_end(il);
-		mutex_unlock(&il->mutex);
-	}
-}
-EXPORT_SYMBOL(il_cancel_scan_deferred_work);