The scanning code is going to get a bit more complex, with proper support for
active/passive scans together with 2.4GHz and 5GHz. In the future, also a
new type of scan (periodic scan) will be added. When all this is
implemented, the code is going to be much more complex, so we'd better
separate it into a separate file.
This patch doesn't have any impact on functionality.
Signed-off-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
Reviewed-by: Saravanan Dhanabal <ext-saravanan.dhanabal@xxxxxxxxx>
Signed-off-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/wl12xx/Makefile | 2 +-
drivers/net/wireless/wl12xx/wl1271_cmd.c | 136 --------------------
drivers/net/wireless/wl12xx/wl1271_cmd.h | 68 ----------
drivers/net/wireless/wl12xx/wl1271_event.c | 36 +-----
drivers/net/wireless/wl12xx/wl1271_main.c | 9 +-
drivers/net/wireless/wl12xx/wl1271_scan.c | 191 ++++++++++++++++++++++++++++
drivers/net/wireless/wl12xx/wl1271_scan.h | 101 +++++++++++++++
7 files changed, 303 insertions(+), 240 deletions(-)
create mode 100644 drivers/net/wireless/wl12xx/wl1271_scan.c
create mode 100644 drivers/net/wireless/wl12xx/wl1271_scan.h
diff --git a/drivers/net/wireless/wl12xx/Makefile b/drivers/net/wireless/wl12xx/Makefile
index 27ddd2b..078b439 100644
--- a/drivers/net/wireless/wl12xx/Makefile
+++ b/drivers/net/wireless/wl12xx/Makefile
@@ -10,7 +10,7 @@ obj-$(CONFIG_WL1251_SDIO) += wl1251_sdio.o
wl1271-objs = wl1271_main.o wl1271_cmd.o wl1271_io.o \
wl1271_event.o wl1271_tx.o wl1271_rx.o \
wl1271_ps.o wl1271_acx.o wl1271_boot.o \
- wl1271_init.o wl1271_debugfs.o
+ wl1271_init.o wl1271_debugfs.o wl1271_scan.o
wl1271-$(CONFIG_NL80211_TESTMODE) += wl1271_testmode.o
obj-$(CONFIG_WL1271) += wl1271.o
diff --git a/drivers/net/wireless/wl12xx/wl1271_cmd.c b/drivers/net/wireless/wl12xx/wl1271_cmd.c
index 23c7598..ce503dd 100644
--- a/drivers/net/wireless/wl12xx/wl1271_cmd.c
+++ b/drivers/net/wireless/wl12xx/wl1271_cmd.c
@@ -463,142 +463,6 @@ out:
return ret;
}
-int wl1271_cmd_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
- struct cfg80211_scan_request *req, u8 active_scan,
- u8 high_prio, u8 band, u8 probe_requests)
-{
-
- struct wl1271_cmd_trigger_scan_to *trigger = NULL;
- struct wl1271_cmd_scan *params = NULL;
- struct ieee80211_channel *channels;
- u32 rate;
- int i, j, n_ch, ret;
- u16 scan_options = 0;
- u8 ieee_band;
-
- if (band == WL1271_SCAN_BAND_2_4_GHZ) {
- ieee_band = IEEE80211_BAND_2GHZ;
- rate = wl->conf.tx.basic_rate;
- } else if (band == WL1271_SCAN_BAND_DUAL && wl1271_11a_enabled()) {
- ieee_band = IEEE80211_BAND_2GHZ;
- rate = wl->conf.tx.basic_rate;
- } else if (band == WL1271_SCAN_BAND_5_GHZ && wl1271_11a_enabled()) {
- ieee_band = IEEE80211_BAND_5GHZ;
- rate = wl->conf.tx.basic_rate_5;
- } else
- return -EINVAL;
-
- if (wl->hw->wiphy->bands[ieee_band]->channels == NULL)
- return -EINVAL;
-
- channels = wl->hw->wiphy->bands[ieee_band]->channels;
- n_ch = wl->hw->wiphy->bands[ieee_band]->n_channels;
-
- if (test_bit(WL1271_FLAG_SCANNING, &wl->flags))
- return -EINVAL;
-
- params = kzalloc(sizeof(*params), GFP_KERNEL);
- if (!params)
- return -ENOMEM;
-
- params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
- params->params.rx_filter_options =
- cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
-
- if (!active_scan)
- scan_options |= WL1271_SCAN_OPT_PASSIVE;
- if (high_prio)
- scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
- params->params.scan_options = cpu_to_le16(scan_options);
-
- params->params.num_probe_requests = probe_requests;
- params->params.tx_rate = cpu_to_le32(rate);
- params->params.tid_trigger = 0;
- params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
-
- if (band == WL1271_SCAN_BAND_DUAL)
- params->params.band = WL1271_SCAN_BAND_2_4_GHZ;
- else
- params->params.band = band;
-
- for (i = 0, j = 0; i < n_ch && i < WL1271_SCAN_MAX_CHANNELS; i++) {
- if (!(channels[i].flags & IEEE80211_CHAN_DISABLED)) {
- params->channels[j].min_duration =
- cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
- params->channels[j].max_duration =
- cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
- memset(¶ms->channels[j].bssid_lsb, 0xff, 4);
- memset(¶ms->channels[j].bssid_msb, 0xff, 2);
- params->channels[j].early_termination = 0;
- params->channels[j].tx_power_att =
- WL1271_SCAN_CURRENT_TX_PWR;
- params->channels[j].channel = channels[i].hw_value;
- j++;
- }
- }
-
- params->params.num_channels = j;
-
- if (ssid_len && ssid) {
- params->params.ssid_len = ssid_len;
- memcpy(params->params.ssid, ssid, ssid_len);
- }
-
- ret = wl1271_cmd_build_probe_req(wl, ssid, ssid_len,
- req->ie, req->ie_len, ieee_band);
- if (ret < 0) {
- wl1271_error("PROBE request template failed");
- goto out;
- }
-
- trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
- if (!trigger) {
- ret = -ENOMEM;
- 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: ", params, sizeof(*params));
-
- set_bit(WL1271_FLAG_SCANNING, &wl->flags);
- if (wl1271_11a_enabled()) {
- wl->scan.state = band;
- if (band == WL1271_SCAN_BAND_DUAL) {
- wl->scan.active = active_scan;
- wl->scan.high_prio = high_prio;
- wl->scan.probe_requests = probe_requests;
- 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;
- } else
- wl->scan.req = NULL;
- }
-
- ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params), 0);
- if (ret < 0) {
- wl1271_error("SCAN failed");
- clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
- goto out;
- }
-
-out:
- kfree(params);
- kfree(trigger);
- return ret;
-}
-
int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
void *buf, size_t buf_len, int index, u32 rates)
{
diff --git a/drivers/net/wireless/wl12xx/wl1271_cmd.h b/drivers/net/wireless/wl12xx/wl1271_cmd.h
index 68001df..34cd013 100644
--- a/drivers/net/wireless/wl12xx/wl1271_cmd.h
+++ b/drivers/net/wireless/wl12xx/wl1271_cmd.h
@@ -41,9 +41,6 @@ int wl1271_cmd_data_path(struct wl1271 *wl, bool enable);
int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, bool send);
int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
size_t len);
-int wl1271_cmd_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
- struct cfg80211_scan_request *req, u8 active_scan,
- u8 high_prio, u8 band, u8 probe_requests);
int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
void *buf, size_t buf_len, int index, u32 rates);
int wl1271_cmd_build_null_data(struct wl1271 *wl);
@@ -350,71 +347,6 @@ struct wl1271_cmd_set_keys {
__le32 ac_seq_num32[NUM_ACCESS_CATEGORIES_COPY];
} __attribute__ ((packed));
-
-#define WL1271_SCAN_MAX_CHANNELS 24
-#define WL1271_SCAN_DEFAULT_TAG 1
-#define WL1271_SCAN_CURRENT_TX_PWR 0
-#define WL1271_SCAN_OPT_ACTIVE 0
-#define WL1271_SCAN_OPT_PASSIVE 1
-#define WL1271_SCAN_OPT_PRIORITY_HIGH 4
-#define WL1271_SCAN_CHAN_MIN_DURATION 30000 /* TU */
-#define WL1271_SCAN_CHAN_MAX_DURATION 60000 /* TU */
-#define WL1271_SCAN_BAND_2_4_GHZ 0
-#define WL1271_SCAN_BAND_5_GHZ 1
-#define WL1271_SCAN_BAND_DUAL 2
-
-struct basic_scan_params {
- __le32 rx_config_options;
- __le32 rx_filter_options;
- /* Scan option flags (WL1271_SCAN_OPT_*) */
- __le16 scan_options;
- /* Number of scan channels in the list (maximum 30) */
- u8 num_channels;
- /* This field indicates the number of probe requests to send
- per channel for an active scan */
- u8 num_probe_requests;
- /* Rate bit field for sending the probes */
- __le32 tx_rate;
- u8 tid_trigger;
- u8 ssid_len;
- /* in order to align */
- u8 padding1[2];
- u8 ssid[IW_ESSID_MAX_SIZE];
- /* Band to scan */
- u8 band;
- u8 use_ssid_list;
- u8 scan_tag;
- u8 padding2;
-} __attribute__ ((packed));
-
-struct basic_scan_channel_params {
- /* Duration in TU to wait for frames on a channel for active scan */
- __le32 min_duration;
- __le32 max_duration;
- __le32 bssid_lsb;
- __le16 bssid_msb;
- u8 early_termination;
- u8 tx_power_att;
- u8 channel;
- /* FW internal use only! */
- u8 dfs_candidate;
- u8 activity_detected;
- u8 pad;
-} __attribute__ ((packed));
-
-struct wl1271_cmd_scan {
- struct wl1271_cmd_header header;
-
- struct basic_scan_params params;
- struct basic_scan_channel_params channels[WL1271_SCAN_MAX_CHANNELS];
-} __attribute__ ((packed));
-
-struct wl1271_cmd_trigger_scan_to {
- struct wl1271_cmd_header header;
-
- __le32 timeout;
-} __attribute__ ((packed));
-
struct wl1271_cmd_test_header {
u8 id;
u8 padding[3];
diff --git a/drivers/net/wireless/wl12xx/wl1271_event.c b/drivers/net/wireless/wl12xx/wl1271_event.c
index 2d60d22..3bdae89 100644
--- a/drivers/net/wireless/wl12xx/wl1271_event.c
+++ b/drivers/net/wireless/wl12xx/wl1271_event.c
@@ -26,6 +26,7 @@
#include "wl1271_io.h"
#include "wl1271_event.h"
#include "wl1271_ps.h"
+#include "wl1271_scan.h"
#include "wl12xx_80211.h"
void wl1271_pspoll_work(struct work_struct *work)
@@ -85,36 +86,6 @@ static void wl1271_event_pspoll_delivery_fail(struct wl1271 *wl)
*/
}
-static int wl1271_event_scan_complete(struct wl1271 *wl,
- struct event_mailbox *mbox)
-{
- wl1271_debug(DEBUG_EVENT, "status: 0x%x",
- mbox->scheduled_scan_status);
-
- if (test_bit(WL1271_FLAG_SCANNING, &wl->flags)) {
- if (wl->scan.state == WL1271_SCAN_BAND_DUAL) {
- /* 2.4 GHz band scanned, scan 5 GHz band, pretend
- * to the wl1271_cmd_scan function that we are not
- * scanning as it checks that.
- */
- clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
- /* FIXME: ie missing! */
- wl1271_cmd_scan(wl, wl->scan.ssid, wl->scan.ssid_len,
- wl->scan.req,
- wl->scan.active,
- wl->scan.high_prio,
- WL1271_SCAN_BAND_5_GHZ,
- wl->scan.probe_requests);
- } else {
- mutex_unlock(&wl->mutex);
- ieee80211_scan_completed(wl->hw, false);
- mutex_lock(&wl->mutex);
- clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
- }
- }
- return 0;
-}
-
static int wl1271_event_ps_report(struct wl1271 *wl,
struct event_mailbox *mbox,
bool *beacon_loss)
@@ -220,7 +191,10 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector);
if (vector & SCAN_COMPLETE_EVENT_ID) {
- ret = wl1271_event_scan_complete(wl, mbox);
+ wl1271_debug(DEBUG_EVENT, "status: 0x%x",
+ mbox->scheduled_scan_status);
+
+ ret = wl1271_scan_complete(wl);
if (ret < 0)
return ret;
}
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 70c6b0d..cdfcc05 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -44,6 +44,7 @@
#include "wl1271_cmd.h"
#include "wl1271_boot.h"
#include "wl1271_testmode.h"
+#include "wl1271_scan.h"
#define WL1271_BOOT_RETRIES 3
@@ -1550,11 +1551,11 @@ static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
goto out;
if (wl1271_11a_enabled())
- ret = wl1271_cmd_scan(hw->priv, ssid, len, req,
- 1, 0, WL1271_SCAN_BAND_DUAL, 3);
+ ret = wl1271_scan(hw->priv, ssid, len, req,
+ 1, 0, WL1271_SCAN_BAND_DUAL, 3);
else
- ret = wl1271_cmd_scan(hw->priv, ssid, len, req,
- 1, 0, WL1271_SCAN_BAND_2_4_GHZ, 3);
+ ret = wl1271_scan(hw->priv, ssid, len, req,
+ 1, 0, WL1271_SCAN_BAND_2_4_GHZ, 3);
wl1271_ps_elp_sleep(wl);
diff --git a/drivers/net/wireless/wl12xx/wl1271_scan.c b/drivers/net/wireless/wl12xx/wl1271_scan.c
new file mode 100644
index 0000000..eb9b4ec
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl1271_scan.c
@@ -0,0 +1,191 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 2009-2010 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@xxxxxxxxx>
+ *
+ * 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 "wl1271.h"
+#include "wl1271_cmd.h"
+#include "wl1271_scan.h"
+#include "wl1271_acx.h"
+
+int wl1271_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
+ struct cfg80211_scan_request *req, u8 active_scan,
+ u8 high_prio, u8 band, u8 probe_requests)
+{
+
+ struct wl1271_cmd_trigger_scan_to *trigger = NULL;
+ struct wl1271_cmd_scan *params = NULL;
+ struct ieee80211_channel *channels;
+ u32 rate;
+ int i, j, n_ch, ret;
+ u16 scan_options = 0;
+ u8 ieee_band;
+
+ if (band == WL1271_SCAN_BAND_2_4_GHZ) {
+ ieee_band = IEEE80211_BAND_2GHZ;
+ rate = wl->conf.tx.basic_rate;
+ } else if (band == WL1271_SCAN_BAND_DUAL && wl1271_11a_enabled()) {
+ ieee_band = IEEE80211_BAND_2GHZ;
+ rate = wl->conf.tx.basic_rate;
+ } else if (band == WL1271_SCAN_BAND_5_GHZ && wl1271_11a_enabled()) {
+ ieee_band = IEEE80211_BAND_5GHZ;
+ rate = wl->conf.tx.basic_rate_5;
+ } else
+ return -EINVAL;
+
+ if (wl->hw->wiphy->bands[ieee_band]->channels == NULL)
+ return -EINVAL;
+
+ channels = wl->hw->wiphy->bands[ieee_band]->channels;
+ n_ch = wl->hw->wiphy->bands[ieee_band]->n_channels;
+
+ if (test_bit(WL1271_FLAG_SCANNING, &wl->flags))
+ return -EINVAL;
+
+ params = kzalloc(sizeof(*params), GFP_KERNEL);
+ if (!params)
+ return -ENOMEM;
+
+ params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
+ params->params.rx_filter_options =
+ cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
+
+ if (!active_scan)
+ scan_options |= WL1271_SCAN_OPT_PASSIVE;
+ if (high_prio)
+ scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
+ params->params.scan_options = cpu_to_le16(scan_options);
+
+ params->params.num_probe_requests = probe_requests;
+ params->params.tx_rate = cpu_to_le32(rate);
+ params->params.tid_trigger = 0;
+ params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
+
+ if (band == WL1271_SCAN_BAND_DUAL)
+ params->params.band = WL1271_SCAN_BAND_2_4_GHZ;
+ else
+ params->params.band = band;
+
+ for (i = 0, j = 0; i < n_ch && i < WL1271_SCAN_MAX_CHANNELS; i++) {
+ if (!(channels[i].flags & IEEE80211_CHAN_DISABLED)) {
+ params->channels[j].min_duration =
+ cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
+ params->channels[j].max_duration =
+ cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
+ memset(¶ms->channels[j].bssid_lsb, 0xff, 4);
+ memset(¶ms->channels[j].bssid_msb, 0xff, 2);
+ params->channels[j].early_termination = 0;
+ params->channels[j].tx_power_att =
+ WL1271_SCAN_CURRENT_TX_PWR;
+ params->channels[j].channel = channels[i].hw_value;
+ j++;
+ }
+ }
+
+ params->params.num_channels = j;
+
+ if (ssid_len && ssid) {
+ params->params.ssid_len = ssid_len;
+ memcpy(params->params.ssid, ssid, ssid_len);
+ }
+
+ ret = wl1271_cmd_build_probe_req(wl, ssid, ssid_len,
+ req->ie, req->ie_len, ieee_band);
+ if (ret < 0) {
+ wl1271_error("PROBE request template failed");
+ goto out;
+ }
+
+ trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
+ if (!trigger) {
+ ret = -ENOMEM;
+ 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: ", params, sizeof(*params));
+
+ set_bit(WL1271_FLAG_SCANNING, &wl->flags);
+ if (wl1271_11a_enabled()) {
+ wl->scan.state = band;
+ if (band == WL1271_SCAN_BAND_DUAL) {
+ wl->scan.active = active_scan;
+ wl->scan.high_prio = high_prio;
+ wl->scan.probe_requests = probe_requests;
+ 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;
+ } else
+ wl->scan.req = NULL;
+ }
+
+ ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params), 0);
+ if (ret < 0) {
+ wl1271_error("SCAN failed");
+ clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
+ goto out;
+ }
+
+out:
+ kfree(params);
+ kfree(trigger);
+ return ret;
+}
+
+int wl1271_scan_complete(struct wl1271 *wl)
+{
+ if (test_bit(WL1271_FLAG_SCANNING, &wl->flags)) {
+ if (wl->scan.state == WL1271_SCAN_BAND_DUAL) {
+ /* 2.4 GHz band scanned, scan 5 GHz band, pretend to
+ * the wl1271_scan function that we are not scanning
+ * as it checks that.
+ */
+ clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
+ /* FIXME: ie missing! */
+ wl1271_scan(wl, wl->scan.ssid, wl->scan.ssid_len,
+ wl->scan.req,
+ wl->scan.active,
+ wl->scan.high_prio,
+ WL1271_SCAN_BAND_5_GHZ,
+ wl->scan.probe_requests);
+ } else {
+ mutex_unlock(&wl->mutex);
+ ieee80211_scan_completed(wl->hw, false);
+ mutex_lock(&wl->mutex);
+ clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
+ }
+ }
+ return 0;
+}
diff --git a/drivers/net/wireless/wl12xx/wl1271_scan.h b/drivers/net/wireless/wl12xx/wl1271_scan.h
new file mode 100644
index 0000000..0002e81
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl1271_scan.h
@@ -0,0 +1,101 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 2009-2010 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@xxxxxxxxx>
+ *
+ * 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
+ *
+ */
+
+#ifndef __WL1271_SCAN_H__
+#define __WL1271_SCAN_H__
+
+#include "wl1271.h"
+
+int wl1271_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
+ struct cfg80211_scan_request *req, u8 active_scan,
+ u8 high_prio, u8 band, u8 probe_requests);
+int wl1271_scan_build_probe_req(struct wl1271 *wl,
+ const u8 *ssid, size_t ssid_len,
+ const u8 *ie, size_t ie_len, u8 band);
+int wl1271_scan_complete(struct wl1271 *wl);
+
+#define WL1271_SCAN_MAX_CHANNELS 24
+#define WL1271_SCAN_DEFAULT_TAG 1
+#define WL1271_SCAN_CURRENT_TX_PWR 0
+#define WL1271_SCAN_OPT_ACTIVE 0
+#define WL1271_SCAN_OPT_PASSIVE 1
+#define WL1271_SCAN_OPT_PRIORITY_HIGH 4
+#define WL1271_SCAN_CHAN_MIN_DURATION 30000 /* TU */
+#define WL1271_SCAN_CHAN_MAX_DURATION 60000 /* TU */
+#define WL1271_SCAN_BAND_2_4_GHZ 0
+#define WL1271_SCAN_BAND_5_GHZ 1
+#define WL1271_SCAN_BAND_DUAL 2
+
+struct basic_scan_params {
+ __le32 rx_config_options;
+ __le32 rx_filter_options;
+ /* Scan option flags (WL1271_SCAN_OPT_*) */
+ __le16 scan_options;
+ /* Number of scan channels in the list (maximum 30) */
+ u8 num_channels;
+ /* This field indicates the number of probe requests to send
+ per channel for an active scan */
+ u8 num_probe_requests;
+ /* Rate bit field for sending the probes */
+ __le32 tx_rate;
+ u8 tid_trigger;
+ u8 ssid_len;
+ /* in order to align */
+ u8 padding1[2];
+ u8 ssid[IW_ESSID_MAX_SIZE];
+ /* Band to scan */
+ u8 band;
+ u8 use_ssid_list;
+ u8 scan_tag;
+ u8 padding2;
+} __attribute__ ((packed));
+
+struct basic_scan_channel_params {
+ /* Duration in TU to wait for frames on a channel for active scan */
+ __le32 min_duration;
+ __le32 max_duration;
+ __le32 bssid_lsb;
+ __le16 bssid_msb;
+ u8 early_termination;
+ u8 tx_power_att;
+ u8 channel;
+ /* FW internal use only! */
+ u8 dfs_candidate;
+ u8 activity_detected;
+ u8 pad;
+} __attribute__ ((packed));
+
+struct wl1271_cmd_scan {
+ struct wl1271_cmd_header header;
+
+ struct basic_scan_params params;
+ struct basic_scan_channel_params channels[WL1271_SCAN_MAX_CHANNELS];
+} __attribute__ ((packed));
+
+struct wl1271_cmd_trigger_scan_to {
+ struct wl1271_cmd_header header;
+
+ __le32 timeout;
+} __attribute__ ((packed));
+
+#endif /* __WL1271_SCAN_H__ */
--
1.6.3.3
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