wl1271: Change wl12xx Files Names

All files name prefix removed due to the fact that wl12xx driver supports
wl1271 and wl1273.
Also the definition in Kconfig and header files changed respectively.

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>

1 files changed, 307 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/scan.c b/drivers/net/wireless/wl12xx/scan.c
new file mode 100644
index 0000000..f3f2c5b
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/scan.c
@@ -0,0 +1,307 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 2009-2010 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 <linux/ieee80211.h>
+
+#include "wl12xx.h"
+#include "cmd.h"
+#include "scan.h"
+#include "acx.h"
+
+void wl1271_scan_complete_work(struct work_struct *work)
+{
+	struct delayed_work *dwork;
+	struct wl1271 *wl;
+
+	dwork = container_of(work, struct delayed_work, work);
+	wl = container_of(dwork, struct wl1271, scan_complete_work);
+
+	wl1271_debug(DEBUG_SCAN, "Scanning complete");
+
+	mutex_lock(&wl->mutex);
+
+	if (wl->scan.state == WL1271_SCAN_STATE_IDLE) {
+		mutex_unlock(&wl->mutex);
+		return;
+	}
+
+	wl->scan.state = WL1271_SCAN_STATE_IDLE;
+	kfree(wl->scan.scanned_ch);
+	wl->scan.scanned_ch = NULL;
+	wl->scan.req = NULL;
+	ieee80211_scan_completed(wl->hw, false);
+
+	if (wl->scan.failed) {
+		wl1271_info("Scan completed due to error.");
+		ieee80211_queue_work(wl->hw, &wl->recovery_work);
+	}
+	mutex_unlock(&wl->mutex);
+
+}
+
+
+static int wl1271_get_scan_channels(struct wl1271 *wl,
+				    struct cfg80211_scan_request *req,
+				    struct basic_scan_channel_params *channels,
+				    enum ieee80211_band band, bool passive)
+{
+	struct conf_scan_settings *c = &wl->conf.scan;
+	int i, j;
+	u32 flags;
+
+	for (i = 0, j = 0;
+	     i < req->n_channels && j < WL1271_SCAN_MAX_CHANNELS;
+	     i++) {
+
+		flags = req->channels[i]->flags;
+
+		if (!wl->scan.scanned_ch[i] &&
+		    !(flags & IEEE80211_CHAN_DISABLED) &&
+		    ((!!(flags & IEEE80211_CHAN_PASSIVE_SCAN)) == passive) &&
+		    (req->channels[i]->band == band)) {
+
+			wl1271_debug(DEBUG_SCAN, "band %d, center_freq %d ",
+				     req->channels[i]->band,
+				     req->channels[i]->center_freq);
+			wl1271_debug(DEBUG_SCAN, "hw_value %d, flags %X",
+				     req->channels[i]->hw_value,
+				     req->channels[i]->flags);
+			wl1271_debug(DEBUG_SCAN,
+				     "max_antenna_gain %d, max_power %d",
+				     req->channels[i]->max_antenna_gain,
+				     req->channels[i]->max_power);
+			wl1271_debug(DEBUG_SCAN, "beacon_found %d",
+				     req->channels[i]->beacon_found);
+
+			if (!passive) {
+				channels[j].min_duration =
+					cpu_to_le32(c->min_dwell_time_active);
+				channels[j].max_duration =
+					cpu_to_le32(c->max_dwell_time_active);
+			} else {
+				channels[j].min_duration =
+					cpu_to_le32(c->min_dwell_time_passive);
+				channels[j].max_duration =
+					cpu_to_le32(c->max_dwell_time_passive);
+			}
+			channels[j].early_termination = 0;
+			channels[j].tx_power_att = req->channels[i]->max_power;
+			channels[j].channel = req->channels[i]->hw_value;
+
+			memset(&channels[j].bssid_lsb, 0xff, 4);
+			memset(&channels[j].bssid_msb, 0xff, 2);
+
+			/* Mark the channels we already used */
+			wl->scan.scanned_ch[i] = true;
+
+			j++;
+		}
+	}
+
+	return j;
+}
+
+#define WL1271_NOTHING_TO_SCAN 1
+
+static int wl1271_scan_send(struct wl1271 *wl, enum ieee80211_band band,
+			     bool passive, u32 basic_rate)
+{
+	struct wl1271_cmd_scan *cmd;
+	struct wl1271_cmd_trigger_scan_to *trigger;
+	int ret;
+	u16 scan_options = 0;
+
+	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+	trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
+	if (!cmd || !trigger) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	/* We always use high priority scans */
+	scan_options = WL1271_SCAN_OPT_PRIORITY_HIGH;
+
+	/* No SSIDs means that we have a forced passive scan */
+	if (passive || wl->scan.req->n_ssids == 0)
+		scan_options |= WL1271_SCAN_OPT_PASSIVE;
+
+	cmd->params.scan_options = cpu_to_le16(scan_options);
+
+	cmd->params.n_ch = wl1271_get_scan_channels(wl, wl->scan.req,
+						    cmd->channels,
+						    band, passive);
+	if (cmd->params.n_ch == 0) {
+		ret = WL1271_NOTHING_TO_SCAN;
+		goto out;
+	}
+
+	cmd->params.tx_rate = cpu_to_le32(basic_rate);
+	cmd->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
+	cmd->params.rx_filter_options =
+		cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
+
+	cmd->params.n_probe_reqs = wl->conf.scan.num_probe_reqs;
+	cmd->params.tx_rate = cpu_to_le32(basic_rate);
+	cmd->params.tid_trigger = 0;
+	cmd->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
+
+	if (band == IEEE80211_BAND_2GHZ)
+		cmd->params.band = WL1271_SCAN_BAND_2_4_GHZ;
+	else
+		cmd->params.band = WL1271_SCAN_BAND_5_GHZ;
+
+	if (wl->scan.ssid_len && wl->scan.ssid) {
+		cmd->params.ssid_len = wl->scan.ssid_len;
+		memcpy(cmd->params.ssid, wl->scan.ssid, wl->scan.ssid_len);
+	}
+
+	ret = wl1271_cmd_build_probe_req(wl, wl->scan.ssid, wl->scan.ssid_len,
+					 wl->scan.req->ie, wl->scan.req->ie_len,
+					 band);
+	if (ret < 0) {
+		wl1271_error("PROBE request template failed");
+		goto out;
+	}
+
+	/* disable the timeout */
+	trigger->timeout = 0;
+	ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
+			      sizeof(*trigger), 0);
+	if (ret < 0) {
+		wl1271_error("trigger scan to failed for hw scan");
+		goto out;
+	}
+
+	wl1271_dump(DEBUG_SCAN, "SCAN: ", cmd, sizeof(*cmd));
+
+	ret = wl1271_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd), 0);
+	if (ret < 0) {
+		wl1271_error("SCAN failed");
+		goto out;
+	}
+
+out:
+	kfree(cmd);
+	kfree(trigger);
+	return ret;
+}
+
+void wl1271_scan_stm(struct wl1271 *wl)
+{
+	int ret = 0;
+
+	switch (wl->scan.state) {
+	case WL1271_SCAN_STATE_IDLE:
+		break;
+
+	case WL1271_SCAN_STATE_2GHZ_ACTIVE:
+		ret = wl1271_scan_send(wl, IEEE80211_BAND_2GHZ, false,
+				       wl->conf.tx.basic_rate);
+		if (ret == WL1271_NOTHING_TO_SCAN) {
+			wl->scan.state = WL1271_SCAN_STATE_2GHZ_PASSIVE;
+			wl1271_scan_stm(wl);
+		}
+
+		break;
+
+	case WL1271_SCAN_STATE_2GHZ_PASSIVE:
+		ret = wl1271_scan_send(wl, IEEE80211_BAND_2GHZ, true,
+				       wl->conf.tx.basic_rate);
+		if (ret == WL1271_NOTHING_TO_SCAN) {
+			if (wl->enable_11a)
+				wl->scan.state = WL1271_SCAN_STATE_5GHZ_ACTIVE;
+			else
+				wl->scan.state = WL1271_SCAN_STATE_DONE;
+			wl1271_scan_stm(wl);
+		}
+
+		break;
+
+	case WL1271_SCAN_STATE_5GHZ_ACTIVE:
+		ret = wl1271_scan_send(wl, IEEE80211_BAND_5GHZ, false,
+				       wl->conf.tx.basic_rate_5);
+		if (ret == WL1271_NOTHING_TO_SCAN) {
+			wl->scan.state = WL1271_SCAN_STATE_5GHZ_PASSIVE;
+			wl1271_scan_stm(wl);
+		}
+
+		break;
+
+	case WL1271_SCAN_STATE_5GHZ_PASSIVE:
+		ret = wl1271_scan_send(wl, IEEE80211_BAND_5GHZ, true,
+				       wl->conf.tx.basic_rate_5);
+		if (ret == WL1271_NOTHING_TO_SCAN) {
+			wl->scan.state = WL1271_SCAN_STATE_DONE;
+			wl1271_scan_stm(wl);
+		}
+
+		break;
+
+	case WL1271_SCAN_STATE_DONE:
+		wl->scan.failed = false;
+		cancel_delayed_work(&wl->scan_complete_work);
+		ieee80211_queue_delayed_work(wl->hw, &wl->scan_complete_work,
+					     msecs_to_jiffies(0));
+		break;
+
+	default:
+		wl1271_error("invalid scan state");
+		break;
+	}
+
+	if (ret < 0) {
+		cancel_delayed_work(&wl->scan_complete_work);
+		ieee80211_queue_delayed_work(wl->hw, &wl->scan_complete_work,
+					     msecs_to_jiffies(0));
+	}
+}
+
+int wl1271_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
+		struct cfg80211_scan_request *req)
+{
+	if (wl->scan.state != WL1271_SCAN_STATE_IDLE)
+		return -EBUSY;
+
+	wl->scan.state = WL1271_SCAN_STATE_2GHZ_ACTIVE;
+
+	if (ssid_len && ssid) {
+		wl->scan.ssid_len = ssid_len;
+		memcpy(wl->scan.ssid, ssid, ssid_len);
+	} else {
+		wl->scan.ssid_len = 0;
+	}
+
+	wl->scan.req = req;
+
+	wl->scan.scanned_ch = kcalloc(req->n_channels,
+				      sizeof(*wl->scan.scanned_ch),
+				      GFP_KERNEL);
+	/* we assume failure so that timeout scenarios are handled correctly */
+	wl->scan.failed = true;
+	ieee80211_queue_delayed_work(wl->hw, &wl->scan_complete_work,
+				     msecs_to_jiffies(WL1271_SCAN_TIMEOUT));
+
+	wl1271_scan_stm(wl);
+
+	return 0;
+}