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authorTomas Winkler <tomas.winkler@intel.com>2008-06-11 21:47:10 -0400
committerJohn W. Linville <linville@tuxdriver.com>2008-06-14 12:18:08 -0400
commit2a421b91d6fe89e27ded7544a25449c0b050098f (patch)
treea1e0ba54c0457c20d1ac7b8b765899d695d796f6 /drivers/net/wireless
parent4564ce8b0e17d91d047aa875843deb2cccf3f268 (diff)
iwlwifi: move scan to iwl-scan.c iwlcore
This patch moves scan code to iwl-scan.c file in iwlcore module. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/iwlwifi/Makefile5
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-commands.h24
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.h10
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-dev.h2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-scan.c896
-rw-r--r--drivers/net/wireless/iwlwifi/iwl4965-base.c881
6 files changed, 946 insertions, 872 deletions
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile
index 184fdeec3606..1f52b92f08b5 100644
--- a/drivers/net/wireless/iwlwifi/Makefile
+++ b/drivers/net/wireless/iwlwifi/Makefile
@@ -1,6 +1,7 @@
1obj-$(CONFIG_IWLCORE) += iwlcore.o 1obj-$(CONFIG_IWLCORE) += iwlcore.o
2iwlcore-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o iwl-calib.o 2iwlcore-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
3iwlcore-objs += iwl-rx.o iwl-tx.o iwl-sta.o 3iwlcore-objs += iwl-rx.o iwl-tx.o iwl-sta.o iwl-calib.o
4iwlcore-objs += iwl-scan.o
4iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o 5iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
5iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o 6iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o
6iwlcore-$(CONFIG_IWLWIFI_RFKILL) += iwl-rfkill.o 7iwlcore-$(CONFIG_IWLWIFI_RFKILL) += iwl-rfkill.o
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index b58f79626e10..058e76415042 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2100,7 +2100,7 @@ struct iwl4965_ct_kill_config {
2100 *****************************************************************************/ 2100 *****************************************************************************/
2101 2101
2102/** 2102/**
2103 * struct iwl4965_scan_channel - entry in REPLY_SCAN_CMD channel table 2103 * struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table
2104 * 2104 *
2105 * One for each channel in the scan list. 2105 * One for each channel in the scan list.
2106 * Each channel can independently select: 2106 * Each channel can independently select:
@@ -2110,7 +2110,7 @@ struct iwl4965_ct_kill_config {
2110 * quiet_plcp_th, good_CRC_th) 2110 * quiet_plcp_th, good_CRC_th)
2111 * 2111 *
2112 * To avoid uCode errors, make sure the following are true (see comments 2112 * To avoid uCode errors, make sure the following are true (see comments
2113 * under struct iwl4965_scan_cmd about max_out_time and quiet_time): 2113 * under struct iwl_scan_cmd about max_out_time and quiet_time):
2114 * 1) If using passive_dwell (i.e. passive_dwell != 0): 2114 * 1) If using passive_dwell (i.e. passive_dwell != 0):
2115 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0) 2115 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
2116 * 2) quiet_time <= active_dwell 2116 * 2) quiet_time <= active_dwell
@@ -2118,7 +2118,7 @@ struct iwl4965_ct_kill_config {
2118 * passive_dwell < max_out_time 2118 * passive_dwell < max_out_time
2119 * active_dwell < max_out_time 2119 * active_dwell < max_out_time
2120 */ 2120 */
2121struct iwl4965_scan_channel { 2121struct iwl_scan_channel {
2122 /* 2122 /*
2123 * type is defined as: 2123 * type is defined as:
2124 * 0:0 1 = active, 0 = passive 2124 * 0:0 1 = active, 0 = passive
@@ -2134,13 +2134,13 @@ struct iwl4965_scan_channel {
2134} __attribute__ ((packed)); 2134} __attribute__ ((packed));
2135 2135
2136/** 2136/**
2137 * struct iwl4965_ssid_ie - directed scan network information element 2137 * struct iwl_ssid_ie - directed scan network information element
2138 * 2138 *
2139 * Up to 4 of these may appear in REPLY_SCAN_CMD, selected by "type" field 2139 * Up to 4 of these may appear in REPLY_SCAN_CMD, selected by "type" field
2140 * in struct iwl4965_scan_channel; each channel may select different ssids from 2140 * in struct iwl4965_scan_channel; each channel may select different ssids from
2141 * among the 4 entries. SSID IEs get transmitted in reverse order of entry. 2141 * among the 4 entries. SSID IEs get transmitted in reverse order of entry.
2142 */ 2142 */
2143struct iwl4965_ssid_ie { 2143struct iwl_ssid_ie {
2144 u8 id; 2144 u8 id;
2145 u8 len; 2145 u8 len;
2146 u8 ssid[32]; 2146 u8 ssid[32];
@@ -2201,9 +2201,9 @@ struct iwl4965_ssid_ie {
2201 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands. 2201 * Driver must use separate scan commands for 2.4 vs. 5 GHz bands.
2202 * 2202 *
2203 * To avoid uCode errors, see timing restrictions described under 2203 * To avoid uCode errors, see timing restrictions described under
2204 * struct iwl4965_scan_channel. 2204 * struct iwl_scan_channel.
2205 */ 2205 */
2206struct iwl4965_scan_cmd { 2206struct iwl_scan_cmd {
2207 __le16 len; 2207 __le16 len;
2208 u8 reserved0; 2208 u8 reserved0;
2209 u8 channel_count; /* # channels in channel list */ 2209 u8 channel_count; /* # channels in channel list */
@@ -2227,7 +2227,7 @@ struct iwl4965_scan_cmd {
2227 struct iwl_tx_cmd tx_cmd; 2227 struct iwl_tx_cmd tx_cmd;
2228 2228
2229 /* For directed active scans (set to all-0s otherwise) */ 2229 /* For directed active scans (set to all-0s otherwise) */
2230 struct iwl4965_ssid_ie direct_scan[PROBE_OPTION_MAX]; 2230 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
2231 2231
2232 /* 2232 /*
2233 * Probe request frame, followed by channel list. 2233 * Probe request frame, followed by channel list.
@@ -2255,14 +2255,14 @@ struct iwl4965_scan_cmd {
2255/* 2255/*
2256 * REPLY_SCAN_CMD = 0x80 (response) 2256 * REPLY_SCAN_CMD = 0x80 (response)
2257 */ 2257 */
2258struct iwl4965_scanreq_notification { 2258struct iwl_scanreq_notification {
2259 __le32 status; /* 1: okay, 2: cannot fulfill request */ 2259 __le32 status; /* 1: okay, 2: cannot fulfill request */
2260} __attribute__ ((packed)); 2260} __attribute__ ((packed));
2261 2261
2262/* 2262/*
2263 * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command) 2263 * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
2264 */ 2264 */
2265struct iwl4965_scanstart_notification { 2265struct iwl_scanstart_notification {
2266 __le32 tsf_low; 2266 __le32 tsf_low;
2267 __le32 tsf_high; 2267 __le32 tsf_high;
2268 __le32 beacon_timer; 2268 __le32 beacon_timer;
@@ -2279,7 +2279,7 @@ struct iwl4965_scanstart_notification {
2279/* 2279/*
2280 * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command) 2280 * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
2281 */ 2281 */
2282struct iwl4965_scanresults_notification { 2282struct iwl_scanresults_notification {
2283 u8 channel; 2283 u8 channel;
2284 u8 band; 2284 u8 band;
2285 u8 reserved[2]; 2285 u8 reserved[2];
@@ -2291,7 +2291,7 @@ struct iwl4965_scanresults_notification {
2291/* 2291/*
2292 * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command) 2292 * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
2293 */ 2293 */
2294struct iwl4965_scancomplete_notification { 2294struct iwl_scancomplete_notification {
2295 u8 scanned_channels; 2295 u8 scanned_channels;
2296 u8 status; 2296 u8 status;
2297 u8 reserved; 2297 u8 reserved;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 5bae691cc492..5837577caa8b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -243,6 +243,16 @@ int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id);
243 ****************************************************/ 243 ****************************************************/
244int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force); 244int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
245 245
246/*******************************************************************************
247 * Scanning
248 ******************************************************************************/
249int iwl_scan_cancel(struct iwl_priv *priv);
250int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
251const char *iwl_escape_essid(const char *essid, u8 essid_len);
252int iwl_scan_initiate(struct iwl_priv *priv);
253void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
254void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
255
246/***************************************************** 256/*****************************************************
247 * S e n d i n g H o s t C o m m a n d s * 257 * S e n d i n g H o s t C o m m a n d s *
248 *****************************************************/ 258 *****************************************************/
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index b420f64dcb7d..e5869874213c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -976,7 +976,7 @@ struct iwl_priv {
976 int one_direct_scan; 976 int one_direct_scan;
977 u8 direct_ssid_len; 977 u8 direct_ssid_len;
978 u8 direct_ssid[IW_ESSID_MAX_SIZE]; 978 u8 direct_ssid[IW_ESSID_MAX_SIZE];
979 struct iwl4965_scan_cmd *scan; 979 struct iwl_scan_cmd *scan;
980 980
981 /* spinlock */ 981 /* spinlock */
982 spinlock_t lock; /* protect general shared data */ 982 spinlock_t lock; /* protect general shared data */
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
new file mode 100644
index 000000000000..c2ed7c17ea1f
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -0,0 +1,896 @@
1/******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19 * USA
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
23 *
24 * Contact Information:
25 * Tomas Winkler <tomas.winkler@intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
28#include <net/mac80211.h>
29#include <linux/etherdevice.h>
30
31#include "iwl-eeprom.h"
32#include "iwl-dev.h"
33#include "iwl-core.h"
34#include "iwl-sta.h"
35#include "iwl-io.h"
36#include "iwl-helpers.h"
37
38/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
39 * sending probe req. This should be set long enough to hear probe responses
40 * from more than one AP. */
41#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
42#define IWL_ACTIVE_DWELL_TIME_52 (10)
43
44/* For faster active scanning, scan will move to the next channel if fewer than
45 * PLCP_QUIET_THRESH packets are heard on this channel within
46 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
47 * time if it's a quiet channel (nothing responded to our probe, and there's
48 * no other traffic).
49 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
50#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
51#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
52
53/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
54 * Must be set longer than active dwell time.
55 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
56#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
57#define IWL_PASSIVE_DWELL_TIME_52 (10)
58#define IWL_PASSIVE_DWELL_BASE (100)
59#define IWL_CHANNEL_TUNE_TIME 5
60
61
62
63static int iwl_is_empty_essid(const char *essid, int essid_len)
64{
65 /* Single white space is for Linksys APs */
66 if (essid_len == 1 && essid[0] == ' ')
67 return 1;
68
69 /* Otherwise, if the entire essid is 0, we assume it is hidden */
70 while (essid_len) {
71 essid_len--;
72 if (essid[essid_len] != '\0')
73 return 0;
74 }
75
76 return 1;
77}
78
79
80
81const char *iwl_escape_essid(const char *essid, u8 essid_len)
82{
83 static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
84 const char *s = essid;
85 char *d = escaped;
86
87 if (iwl_is_empty_essid(essid, essid_len)) {
88 memcpy(escaped, "<hidden>", sizeof("<hidden>"));
89 return escaped;
90 }
91
92 essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
93 while (essid_len--) {
94 if (*s == '\0') {
95 *d++ = '\\';
96 *d++ = '0';
97 s++;
98 } else
99 *d++ = *s++;
100 }
101 *d = '\0';
102 return escaped;
103}
104EXPORT_SYMBOL(iwl_escape_essid);
105
106/**
107 * iwl_scan_cancel - Cancel any currently executing HW scan
108 *
109 * NOTE: priv->mutex is not required before calling this function
110 */
111int iwl_scan_cancel(struct iwl_priv *priv)
112{
113 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
114 clear_bit(STATUS_SCANNING, &priv->status);
115 return 0;
116 }
117
118 if (test_bit(STATUS_SCANNING, &priv->status)) {
119 if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
120 IWL_DEBUG_SCAN("Queuing scan abort.\n");
121 set_bit(STATUS_SCAN_ABORTING, &priv->status);
122 queue_work(priv->workqueue, &priv->abort_scan);
123
124 } else
125 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
126
127 return test_bit(STATUS_SCANNING, &priv->status);
128 }
129
130 return 0;
131}
132EXPORT_SYMBOL(iwl_scan_cancel);
133/**
134 * iwl_scan_cancel_timeout - Cancel any currently executing HW scan
135 * @ms: amount of time to wait (in milliseconds) for scan to abort
136 *
137 * NOTE: priv->mutex must be held before calling this function
138 */
139int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
140{
141 unsigned long now = jiffies;
142 int ret;
143
144 ret = iwl_scan_cancel(priv);
145 if (ret && ms) {
146 mutex_unlock(&priv->mutex);
147 while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
148 test_bit(STATUS_SCANNING, &priv->status))
149 msleep(1);
150 mutex_lock(&priv->mutex);
151
152 return test_bit(STATUS_SCANNING, &priv->status);
153 }
154
155 return ret;
156}
157EXPORT_SYMBOL(iwl_scan_cancel_timeout);
158
159static int iwl_send_scan_abort(struct iwl_priv *priv)
160{
161 int ret = 0;
162 struct iwl_rx_packet *res;
163 struct iwl_host_cmd cmd = {
164 .id = REPLY_SCAN_ABORT_CMD,
165 .meta.flags = CMD_WANT_SKB,
166 };
167
168 /* If there isn't a scan actively going on in the hardware
169 * then we are in between scan bands and not actually
170 * actively scanning, so don't send the abort command */
171 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
172 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
173 return 0;
174 }
175
176 ret = iwl_send_cmd_sync(priv, &cmd);
177 if (ret) {
178 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
179 return ret;
180 }
181
182 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
183 if (res->u.status != CAN_ABORT_STATUS) {
184 /* The scan abort will return 1 for success or
185 * 2 for "failure". A failure condition can be
186 * due to simply not being in an active scan which
187 * can occur if we send the scan abort before we
188 * the microcode has notified us that a scan is
189 * completed. */
190 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
191 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
192 clear_bit(STATUS_SCAN_HW, &priv->status);
193 }
194
195 dev_kfree_skb_any(cmd.meta.u.skb);
196
197 return ret;
198}
199
200
201/* Service response to REPLY_SCAN_CMD (0x80) */
202static void iwl_rx_reply_scan(struct iwl_priv *priv,
203 struct iwl_rx_mem_buffer *rxb)
204{
205#ifdef CONFIG_IWLWIFI_DEBUG
206 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
207 struct iwl_scanreq_notification *notif =
208 (struct iwl_scanreq_notification *)pkt->u.raw;
209
210 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
211#endif
212}
213
214/* Service SCAN_START_NOTIFICATION (0x82) */
215static void iwl_rx_scan_start_notif(struct iwl_priv *priv,
216 struct iwl_rx_mem_buffer *rxb)
217{
218 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
219 struct iwl_scanstart_notification *notif =
220 (struct iwl_scanstart_notification *)pkt->u.raw;
221 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
222 IWL_DEBUG_SCAN("Scan start: "
223 "%d [802.11%s] "
224 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
225 notif->channel,
226 notif->band ? "bg" : "a",
227 notif->tsf_high,
228 notif->tsf_low, notif->status, notif->beacon_timer);
229}
230
231/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
232static void iwl_rx_scan_results_notif(struct iwl_priv *priv,
233 struct iwl_rx_mem_buffer *rxb)
234{
235#ifdef CONFIG_IWLWIFI_DEBUG
236 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
237 struct iwl_scanresults_notification *notif =
238 (struct iwl_scanresults_notification *)pkt->u.raw;
239
240 IWL_DEBUG_SCAN("Scan ch.res: "
241 "%d [802.11%s] "
242 "(TSF: 0x%08X:%08X) - %d "
243 "elapsed=%lu usec (%dms since last)\n",
244 notif->channel,
245 notif->band ? "bg" : "a",
246 le32_to_cpu(notif->tsf_high),
247 le32_to_cpu(notif->tsf_low),
248 le32_to_cpu(notif->statistics[0]),
249 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
250 jiffies_to_msecs(elapsed_jiffies
251 (priv->last_scan_jiffies, jiffies)));
252#endif
253
254 priv->last_scan_jiffies = jiffies;
255 priv->next_scan_jiffies = 0;
256}
257
258/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
259static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
260 struct iwl_rx_mem_buffer *rxb)
261{
262 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
263 struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
264
265 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
266 scan_notif->scanned_channels,
267 scan_notif->tsf_low,
268 scan_notif->tsf_high, scan_notif->status);
269
270 /* The HW is no longer scanning */
271 clear_bit(STATUS_SCAN_HW, &priv->status);
272
273 /* The scan completion notification came in, so kill that timer... */
274 cancel_delayed_work(&priv->scan_check);
275
276 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
277 (priv->scan_bands == 2) ? "2.4" : "5.2",
278 jiffies_to_msecs(elapsed_jiffies
279 (priv->scan_pass_start, jiffies)));
280
281 /* Remove this scanned band from the list
282 * of pending bands to scan */
283 priv->scan_bands--;
284
285 /* If a request to abort was given, or the scan did not succeed
286 * then we reset the scan state machine and terminate,
287 * re-queuing another scan if one has been requested */
288 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
289 IWL_DEBUG_INFO("Aborted scan completed.\n");
290 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
291 } else {
292 /* If there are more bands on this scan pass reschedule */
293 if (priv->scan_bands > 0)
294 goto reschedule;
295 }
296
297 priv->last_scan_jiffies = jiffies;
298 priv->next_scan_jiffies = 0;
299 IWL_DEBUG_INFO("Setting scan to off\n");
300
301 clear_bit(STATUS_SCANNING, &priv->status);
302
303 IWL_DEBUG_INFO("Scan took %dms\n",
304 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
305
306 queue_work(priv->workqueue, &priv->scan_completed);
307
308 return;
309
310reschedule:
311 priv->scan_pass_start = jiffies;
312 queue_work(priv->workqueue, &priv->request_scan);
313}
314
315void iwl_setup_rx_scan_handlers(struct iwl_priv *priv)
316{
317 /* scan handlers */
318 priv->rx_handlers[REPLY_SCAN_CMD] = iwl_rx_reply_scan;
319 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl_rx_scan_start_notif;
320 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
321 iwl_rx_scan_results_notif;
322 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
323 iwl_rx_scan_complete_notif;
324}
325EXPORT_SYMBOL(iwl_setup_rx_scan_handlers);
326
327static inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
328 enum ieee80211_band band)
329{
330 if (band == IEEE80211_BAND_5GHZ)
331 return IWL_ACTIVE_DWELL_TIME_52;
332 else
333 return IWL_ACTIVE_DWELL_TIME_24;
334}
335
336static u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
337 enum ieee80211_band band)
338{
339 u16 active = iwl_get_active_dwell_time(priv, band);
340 u16 passive = (band != IEEE80211_BAND_5GHZ) ?
341 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
342 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
343
344 if (iwl_is_associated(priv)) {
345 /* If we're associated, we clamp the maximum passive
346 * dwell time to be 98% of the beacon interval (minus
347 * 2 * channel tune time) */
348 passive = priv->beacon_int;
349 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
350 passive = IWL_PASSIVE_DWELL_BASE;
351 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
352 }
353
354 if (passive <= active)
355 passive = active + 1;
356
357 return passive;
358}
359
360static int iwl_get_channels_for_scan(struct iwl_priv *priv,
361 enum ieee80211_band band,
362 u8 is_active, u8 direct_mask,
363 struct iwl_scan_channel *scan_ch)
364{
365 const struct ieee80211_channel *channels = NULL;
366 const struct ieee80211_supported_band *sband;
367 const struct iwl_channel_info *ch_info;
368 u16 passive_dwell = 0;
369 u16 active_dwell = 0;
370 int added, i;
371
372 sband = iwl_get_hw_mode(priv, band);
373 if (!sband)
374 return 0;
375
376 channels = sband->channels;
377
378 active_dwell = iwl_get_active_dwell_time(priv, band);
379 passive_dwell = iwl_get_passive_dwell_time(priv, band);
380
381 for (i = 0, added = 0; i < sband->n_channels; i++) {
382 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
383 continue;
384
385 scan_ch->channel =
386 ieee80211_frequency_to_channel(channels[i].center_freq);
387
388 ch_info = iwl_get_channel_info(priv, band,
389 scan_ch->channel);
390 if (!is_channel_valid(ch_info)) {
391 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
392 scan_ch->channel);
393 continue;
394 }
395
396 if (!is_active || is_channel_passive(ch_info) ||
397 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
398 scan_ch->type = 0; /* passive */
399 else
400 scan_ch->type = 1; /* active */
401
402 if (scan_ch->type & 1)
403 scan_ch->type |= (direct_mask << 1);
404
405 scan_ch->active_dwell = cpu_to_le16(active_dwell);
406 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
407
408 /* Set txpower levels to defaults */
409 scan_ch->tpc.dsp_atten = 110;
410 /* scan_pwr_info->tpc.dsp_atten; */
411
412 /*scan_pwr_info->tpc.tx_gain; */
413 if (band == IEEE80211_BAND_5GHZ)
414 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
415 else {
416 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
417 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
418 * power level:
419 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
420 */
421 }
422
423 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
424 scan_ch->channel,
425 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
426 (scan_ch->type & 1) ?
427 active_dwell : passive_dwell);
428
429 scan_ch++;
430 added++;
431 }
432
433 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
434 return added;
435}
436
437int iwl_scan_initiate(struct iwl_priv *priv)
438{
439 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
440 IWL_ERROR("APs don't scan.\n");
441 return 0;
442 }
443
444 if (!iwl_is_ready_rf(priv)) {
445 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
446 return -EIO;
447 }
448
449 if (test_bit(STATUS_SCANNING, &priv->status)) {
450 IWL_DEBUG_SCAN("Scan already in progress.\n");
451 return -EAGAIN;
452 }
453
454 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
455 IWL_DEBUG_SCAN("Scan request while abort pending. "
456 "Queuing.\n");
457 return -EAGAIN;
458 }
459
460 IWL_DEBUG_INFO("Starting scan...\n");
461 priv->scan_bands = 2;
462 set_bit(STATUS_SCANNING, &priv->status);
463 priv->scan_start = jiffies;
464 priv->scan_pass_start = priv->scan_start;
465
466 queue_work(priv->workqueue, &priv->request_scan);
467
468 return 0;
469}
470EXPORT_SYMBOL(iwl_scan_initiate);
471
472#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
473
474static void iwl_bg_scan_check(struct work_struct *data)
475{
476 struct iwl_priv *priv =
477 container_of(data, struct iwl_priv, scan_check.work);
478
479 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
480 return;
481
482 mutex_lock(&priv->mutex);
483 if (test_bit(STATUS_SCANNING, &priv->status) ||
484 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
485 IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting "
486 "adapter (%dms)\n",
487 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
488
489 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
490 iwl_send_scan_abort(priv);
491 }
492 mutex_unlock(&priv->mutex);
493}
494/**
495 * iwl_supported_rate_to_ie - fill in the supported rate in IE field
496 *
497 * return : set the bit for each supported rate insert in ie
498 */
499static u16 iwl_supported_rate_to_ie(u8 *ie, u16 supported_rate,
500 u16 basic_rate, int *left)
501{
502 u16 ret_rates = 0, bit;
503 int i;
504 u8 *cnt = ie;
505 u8 *rates = ie + 1;
506
507 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
508 if (bit & supported_rate) {
509 ret_rates |= bit;
510 rates[*cnt] = iwl_rates[i].ieee |
511 ((bit & basic_rate) ? 0x80 : 0x00);
512 (*cnt)++;
513 (*left)--;
514 if ((*left <= 0) ||
515 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
516 break;
517 }
518 }
519
520 return ret_rates;
521}
522
523
524static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
525 u8 *pos, int *left)
526{
527 struct ieee80211_ht_cap *ht_cap;
528
529 if (!sband || !sband->ht_info.ht_supported)
530 return;
531
532 if (*left < sizeof(struct ieee80211_ht_cap))
533 return;
534
535 *pos++ = sizeof(struct ieee80211_ht_cap);
536 ht_cap = (struct ieee80211_ht_cap *) pos;
537
538 ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
539 memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
540 ht_cap->ampdu_params_info =
541 (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
542 ((sband->ht_info.ampdu_density << 2) &
543 IEEE80211_HT_CAP_AMPDU_DENSITY);
544 *left -= sizeof(struct ieee80211_ht_cap);
545}
546
547/**
548 * iwl_fill_probe_req - fill in all required fields and IE for probe request
549 */
550static u16 iwl_fill_probe_req(struct iwl_priv *priv,
551 enum ieee80211_band band,
552 struct ieee80211_mgmt *frame,
553 int left, int is_direct)
554{
555 int len = 0;
556 u8 *pos = NULL;
557 u16 active_rates, ret_rates, cck_rates, active_rate_basic;
558 const struct ieee80211_supported_band *sband =
559 iwl_get_hw_mode(priv, band);
560
561 /* Make sure there is enough space for the probe request,
562 * two mandatory IEs and the data */
563 left -= 24;
564 if (left < 0)
565 return 0;
566 len += 24;
567
568 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
569 memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
570 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
571 memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
572 frame->seq_ctrl = 0;
573
574 /* fill in our indirect SSID IE */
575 /* ...next IE... */
576
577 left -= 2;
578 if (left < 0)
579 return 0;
580 len += 2;
581 pos = &(frame->u.probe_req.variable[0]);
582 *pos++ = WLAN_EID_SSID;
583 *pos++ = 0;
584
585 /* fill in our direct SSID IE... */
586 if (is_direct) {
587 /* ...next IE... */
588 left -= 2 + priv->essid_len;
589 if (left < 0)
590 return 0;
591 /* ... fill it in... */
592 *pos++ = WLAN_EID_SSID;
593 *pos++ = priv->essid_len;
594 memcpy(pos, priv->essid, priv->essid_len);
595 pos += priv->essid_len;
596 len += 2 + priv->essid_len;
597 }
598
599 /* fill in supported rate */
600 /* ...next IE... */
601 left -= 2;
602 if (left < 0)
603 return 0;
604
605 /* ... fill it in... */
606 *pos++ = WLAN_EID_SUPP_RATES;
607 *pos = 0;
608
609 /* exclude 60M rate */
610 active_rates = priv->rates_mask;
611 active_rates &= ~IWL_RATE_60M_MASK;
612
613 active_rate_basic = active_rates & IWL_BASIC_RATES_MASK;
614
615 cck_rates = IWL_CCK_RATES_MASK & active_rates;
616 ret_rates = iwl_supported_rate_to_ie(pos, cck_rates,
617 active_rate_basic, &left);
618 active_rates &= ~ret_rates;
619
620 ret_rates = iwl_supported_rate_to_ie(pos, active_rates,
621 active_rate_basic, &left);
622 active_rates &= ~ret_rates;
623
624 len += 2 + *pos;
625 pos += (*pos) + 1;
626 if (active_rates == 0)
627 goto fill_end;
628
629 /* fill in supported extended rate */
630 /* ...next IE... */
631 left -= 2;
632 if (left < 0)
633 return 0;
634 /* ... fill it in... */
635 *pos++ = WLAN_EID_EXT_SUPP_RATES;
636 *pos = 0;
637 iwl_supported_rate_to_ie(pos, active_rates,
638 active_rate_basic, &left);
639 if (*pos > 0)
640 len += 2 + *pos;
641
642 fill_end:
643 /* fill in HT IE */
644 left -= 2;
645 if (left < 0)
646 return 0;
647
648 *pos++ = WLAN_EID_HT_CAPABILITY;
649 *pos = 0;
650
651 iwl_ht_cap_to_ie(sband, pos, &left);
652
653 if (*pos > 0)
654 len += 2 + *pos;
655 return (u16)len;
656}
657
658static void iwl_bg_request_scan(struct work_struct *data)
659{
660 struct iwl_priv *priv =
661 container_of(data, struct iwl_priv, request_scan);
662 struct iwl_host_cmd cmd = {
663 .id = REPLY_SCAN_CMD,
664 .len = sizeof(struct iwl_scan_cmd),
665 .meta.flags = CMD_SIZE_HUGE,
666 };
667 struct iwl_scan_cmd *scan;
668 struct ieee80211_conf *conf = NULL;
669 u16 cmd_len;
670 enum ieee80211_band band;
671 u8 direct_mask;
672 int ret = 0;
673
674 conf = ieee80211_get_hw_conf(priv->hw);
675
676 mutex_lock(&priv->mutex);
677
678 if (!iwl_is_ready(priv)) {
679 IWL_WARNING("request scan called when driver not ready.\n");
680 goto done;
681 }
682
683 /* Make sure the scan wasn't cancelled before this queued work
684 * was given the chance to run... */
685 if (!test_bit(STATUS_SCANNING, &priv->status))
686 goto done;
687
688 /* This should never be called or scheduled if there is currently
689 * a scan active in the hardware. */
690 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
691 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
692 "Ignoring second request.\n");
693 ret = -EIO;
694 goto done;
695 }
696
697 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
698 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
699 goto done;
700 }
701
702 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
703 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
704 goto done;
705 }
706
707 if (iwl_is_rfkill(priv)) {
708 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
709 goto done;
710 }
711
712 if (!test_bit(STATUS_READY, &priv->status)) {
713 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
714 goto done;
715 }
716
717 if (!priv->scan_bands) {
718 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
719 goto done;
720 }
721
722 if (!priv->scan) {
723 priv->scan = kmalloc(sizeof(struct iwl_scan_cmd) +
724 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
725 if (!priv->scan) {
726 ret = -ENOMEM;
727 goto done;
728 }
729 }
730 scan = priv->scan;
731 memset(scan, 0, sizeof(struct iwl_scan_cmd) + IWL_MAX_SCAN_SIZE);
732
733 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
734 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
735
736 if (iwl_is_associated(priv)) {
737 u16 interval = 0;
738 u32 extra;
739 u32 suspend_time = 100;
740 u32 scan_suspend_time = 100;
741 unsigned long flags;
742
743 IWL_DEBUG_INFO("Scanning while associated...\n");
744
745 spin_lock_irqsave(&priv->lock, flags);
746 interval = priv->beacon_int;
747 spin_unlock_irqrestore(&priv->lock, flags);
748
749 scan->suspend_time = 0;
750 scan->max_out_time = cpu_to_le32(200 * 1024);
751 if (!interval)
752 interval = suspend_time;
753
754 extra = (suspend_time / interval) << 22;
755 scan_suspend_time = (extra |
756 ((suspend_time % interval) * 1024));
757 scan->suspend_time = cpu_to_le32(scan_suspend_time);
758 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
759 scan_suspend_time, interval);
760 }
761
762 /* We should add the ability for user to lock to PASSIVE ONLY */
763 if (priv->one_direct_scan) {
764 IWL_DEBUG_SCAN
765 ("Kicking off one direct scan for '%s'\n",
766 iwl_escape_essid(priv->direct_ssid,
767 priv->direct_ssid_len));
768 scan->direct_scan[0].id = WLAN_EID_SSID;
769 scan->direct_scan[0].len = priv->direct_ssid_len;
770 memcpy(scan->direct_scan[0].ssid,
771 priv->direct_ssid, priv->direct_ssid_len);
772 direct_mask = 1;
773 } else if (!iwl_is_associated(priv) && priv->essid_len) {
774 IWL_DEBUG_SCAN
775 ("Kicking off one direct scan for '%s' when not associated\n",
776 iwl_escape_essid(priv->essid, priv->essid_len));
777 scan->direct_scan[0].id = WLAN_EID_SSID;
778 scan->direct_scan[0].len = priv->essid_len;
779 memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
780 direct_mask = 1;
781 } else {
782 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
783 direct_mask = 0;
784 }
785
786 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
787 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
788 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
789
790
791 switch (priv->scan_bands) {
792 case 2:
793 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
794 scan->tx_cmd.rate_n_flags =
795 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP,
796 RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK);
797
798 scan->good_CRC_th = 0;
799 band = IEEE80211_BAND_2GHZ;
800 break;
801
802 case 1:
803 scan->tx_cmd.rate_n_flags =
804 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
805 RATE_MCS_ANT_B_MSK);
806 scan->good_CRC_th = IWL_GOOD_CRC_TH;
807 band = IEEE80211_BAND_5GHZ;
808 break;
809
810 default:
811 IWL_WARNING("Invalid scan band count\n");
812 goto done;
813 }
814
815 /* We don't build a direct scan probe request; the uCode will do
816 * that based on the direct_mask added to each channel entry */
817 cmd_len = iwl_fill_probe_req(priv, band,
818 (struct ieee80211_mgmt *)scan->data,
819 IWL_MAX_SCAN_SIZE - sizeof(*scan), 0);
820
821 scan->tx_cmd.len = cpu_to_le16(cmd_len);
822 /* select Rx chains */
823
824 /* Force use of chains B and C (0x6) for scan Rx.
825 * Avoid A (0x1) because of its off-channel reception on A-band.
826 * MIMO is not used here, but value is required to make uCode happy. */
827 scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
828 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
829 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) |
830 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
831
832 if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
833 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
834
835 if (direct_mask)
836 scan->channel_count =
837 iwl_get_channels_for_scan(
838 priv, band, 1, /* active */
839 direct_mask,
840 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
841 else
842 scan->channel_count =
843 iwl_get_channels_for_scan(
844 priv, band, 0, /* passive */
845 direct_mask,
846 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
847
848 scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK |
849 RXON_FILTER_BCON_AWARE_MSK);
850 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
851 scan->channel_count * sizeof(struct iwl_scan_channel);
852 cmd.data = scan;
853 scan->len = cpu_to_le16(cmd.len);
854
855 set_bit(STATUS_SCAN_HW, &priv->status);
856 ret = iwl_send_cmd_sync(priv, &cmd);
857 if (ret)
858 goto done;
859
860 queue_delayed_work(priv->workqueue, &priv->scan_check,
861 IWL_SCAN_CHECK_WATCHDOG);
862
863 mutex_unlock(&priv->mutex);
864 return;
865
866 done:
867 /* inform mac80211 scan aborted */
868 queue_work(priv->workqueue, &priv->scan_completed);
869 mutex_unlock(&priv->mutex);
870}
871
872static void iwl_bg_abort_scan(struct work_struct *work)
873{
874 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
875
876 if (!iwl_is_ready(priv))
877 return;
878
879 mutex_lock(&priv->mutex);
880
881 set_bit(STATUS_SCAN_ABORTING, &priv->status);
882 iwl_send_scan_abort(priv);
883
884 mutex_unlock(&priv->mutex);
885}
886
887void iwl_setup_scan_deferred_work(struct iwl_priv *priv)
888{
889 /* FIXME: move here when resolved PENDING
890 * INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed); */
891 INIT_WORK(&priv->request_scan, iwl_bg_request_scan);
892 INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);
893 INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
894}
895EXPORT_SYMBOL(iwl_setup_scan_deferred_work);
896
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index af448197cc05..4183bd5ebe32 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -87,46 +87,6 @@ MODULE_VERSION(DRV_VERSION);
87MODULE_AUTHOR(DRV_COPYRIGHT); 87MODULE_AUTHOR(DRV_COPYRIGHT);
88MODULE_LICENSE("GPL"); 88MODULE_LICENSE("GPL");
89 89
90static int iwl4965_is_empty_essid(const char *essid, int essid_len)
91{
92 /* Single white space is for Linksys APs */
93 if (essid_len == 1 && essid[0] == ' ')
94 return 1;
95
96 /* Otherwise, if the entire essid is 0, we assume it is hidden */
97 while (essid_len) {
98 essid_len--;
99 if (essid[essid_len] != '\0')
100 return 0;
101 }
102
103 return 1;
104}
105
106static const char *iwl4965_escape_essid(const char *essid, u8 essid_len)
107{
108 static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
109 const char *s = essid;
110 char *d = escaped;
111
112 if (iwl4965_is_empty_essid(essid, essid_len)) {
113 memcpy(escaped, "<hidden>", sizeof("<hidden>"));
114 return escaped;
115 }
116
117 essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
118 while (essid_len--) {
119 if (*s == '\0') {
120 *d++ = '\\';
121 *d++ = '0';
122 s++;
123 } else
124 *d++ = *s++;
125 }
126 *d = '\0';
127 return escaped;
128}
129
130/*************** STATION TABLE MANAGEMENT **** 90/*************** STATION TABLE MANAGEMENT ****
131 * mac80211 should be examined to determine if sta_info is duplicating 91 * mac80211 should be examined to determine if sta_info is duplicating
132 * the functionality provided here 92 * the functionality provided here
@@ -419,47 +379,6 @@ static int iwl4965_send_bt_config(struct iwl_priv *priv)
419 sizeof(struct iwl4965_bt_cmd), &bt_cmd); 379 sizeof(struct iwl4965_bt_cmd), &bt_cmd);
420} 380}
421 381
422static int iwl4965_send_scan_abort(struct iwl_priv *priv)
423{
424 int ret = 0;
425 struct iwl_rx_packet *res;
426 struct iwl_host_cmd cmd = {
427 .id = REPLY_SCAN_ABORT_CMD,
428 .meta.flags = CMD_WANT_SKB,
429 };
430
431 /* If there isn't a scan actively going on in the hardware
432 * then we are in between scan bands and not actually
433 * actively scanning, so don't send the abort command */
434 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
435 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
436 return 0;
437 }
438
439 ret = iwl_send_cmd_sync(priv, &cmd);
440 if (ret) {
441 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
442 return ret;
443 }
444
445 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
446 if (res->u.status != CAN_ABORT_STATUS) {
447 /* The scan abort will return 1 for success or
448 * 2 for "failure". A failure condition can be
449 * due to simply not being in an active scan which
450 * can occur if we send the scan abort before we
451 * the microcode has notified us that a scan is
452 * completed. */
453 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
454 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
455 clear_bit(STATUS_SCAN_HW, &priv->status);
456 }
457
458 dev_kfree_skb_any(cmd.meta.u.skb);
459
460 return ret;
461}
462
463/* 382/*
464 * CARD_STATE_CMD 383 * CARD_STATE_CMD
465 * 384 *
@@ -605,35 +524,6 @@ static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
605 * 524 *
606 ******************************************************************************/ 525 ******************************************************************************/
607 526
608/**
609 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
610 *
611 * return : set the bit for each supported rate insert in ie
612 */
613static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate,
614 u16 basic_rate, int *left)
615{
616 u16 ret_rates = 0, bit;
617 int i;
618 u8 *cnt = ie;
619 u8 *rates = ie + 1;
620
621 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
622 if (bit & supported_rate) {
623 ret_rates |= bit;
624 rates[*cnt] = iwl_rates[i].ieee |
625 ((bit & basic_rate) ? 0x80 : 0x00);
626 (*cnt)++;
627 (*left)--;
628 if ((*left <= 0) ||
629 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
630 break;
631 }
632 }
633
634 return ret_rates;
635}
636
637static void iwl4965_ht_conf(struct iwl_priv *priv, 527static void iwl4965_ht_conf(struct iwl_priv *priv,
638 struct ieee80211_bss_conf *bss_conf) 528 struct ieee80211_bss_conf *bss_conf)
639{ 529{
@@ -686,140 +576,6 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
686 IWL_DEBUG_MAC80211("leave\n"); 576 IWL_DEBUG_MAC80211("leave\n");
687} 577}
688 578
689static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
690 u8 *pos, int *left)
691{
692 struct ieee80211_ht_cap *ht_cap;
693
694 if (!sband || !sband->ht_info.ht_supported)
695 return;
696
697 if (*left < sizeof(struct ieee80211_ht_cap))
698 return;
699
700 *pos++ = sizeof(struct ieee80211_ht_cap);
701 ht_cap = (struct ieee80211_ht_cap *) pos;
702
703 ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
704 memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
705 ht_cap->ampdu_params_info =
706 (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
707 ((sband->ht_info.ampdu_density << 2) &
708 IEEE80211_HT_CAP_AMPDU_DENSITY);
709 *left -= sizeof(struct ieee80211_ht_cap);
710}
711
712/**
713 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
714 */
715static u16 iwl4965_fill_probe_req(struct iwl_priv *priv,
716 enum ieee80211_band band,
717 struct ieee80211_mgmt *frame,
718 int left, int is_direct)
719{
720 int len = 0;
721 u8 *pos = NULL;
722 u16 active_rates, ret_rates, cck_rates, active_rate_basic;
723 const struct ieee80211_supported_band *sband =
724 iwl_get_hw_mode(priv, band);
725
726 /* Make sure there is enough space for the probe request,
727 * two mandatory IEs and the data */
728 left -= 24;
729 if (left < 0)
730 return 0;
731 len += 24;
732
733 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
734 memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
735 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
736 memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
737 frame->seq_ctrl = 0;
738
739 /* fill in our indirect SSID IE */
740 /* ...next IE... */
741
742 left -= 2;
743 if (left < 0)
744 return 0;
745 len += 2;
746 pos = &(frame->u.probe_req.variable[0]);
747 *pos++ = WLAN_EID_SSID;
748 *pos++ = 0;
749
750 /* fill in our direct SSID IE... */
751 if (is_direct) {
752 /* ...next IE... */
753 left -= 2 + priv->essid_len;
754 if (left < 0)
755 return 0;
756 /* ... fill it in... */
757 *pos++ = WLAN_EID_SSID;
758 *pos++ = priv->essid_len;
759 memcpy(pos, priv->essid, priv->essid_len);
760 pos += priv->essid_len;
761 len += 2 + priv->essid_len;
762 }
763
764 /* fill in supported rate */
765 /* ...next IE... */
766 left -= 2;
767 if (left < 0)
768 return 0;
769
770 /* ... fill it in... */
771 *pos++ = WLAN_EID_SUPP_RATES;
772 *pos = 0;
773
774 /* exclude 60M rate */
775 active_rates = priv->rates_mask;
776 active_rates &= ~IWL_RATE_60M_MASK;
777
778 active_rate_basic = active_rates & IWL_BASIC_RATES_MASK;
779
780 cck_rates = IWL_CCK_RATES_MASK & active_rates;
781 ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates,
782 active_rate_basic, &left);
783 active_rates &= ~ret_rates;
784
785 ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates,
786 active_rate_basic, &left);
787 active_rates &= ~ret_rates;
788
789 len += 2 + *pos;
790 pos += (*pos) + 1;
791 if (active_rates == 0)
792 goto fill_end;
793
794 /* fill in supported extended rate */
795 /* ...next IE... */
796 left -= 2;
797 if (left < 0)
798 return 0;
799 /* ... fill it in... */
800 *pos++ = WLAN_EID_EXT_SUPP_RATES;
801 *pos = 0;
802 iwl4965_supported_rate_to_ie(pos, active_rates,
803 active_rate_basic, &left);
804 if (*pos > 0)
805 len += 2 + *pos;
806
807 fill_end:
808 /* fill in HT IE */
809 left -= 2;
810 if (left < 0)
811 return 0;
812
813 *pos++ = WLAN_EID_HT_CAPABILITY;
814 *pos = 0;
815
816 iwl_ht_cap_to_ie(sband, pos, &left);
817
818 if (*pos > 0)
819 len += 2 + *pos;
820 return (u16)len;
821}
822
823/* 579/*
824 * QoS support 580 * QoS support
825*/ 581*/
@@ -897,60 +653,6 @@ int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *heade
897 return 1; 653 return 1;
898} 654}
899 655
900
901
902/**
903 * iwl4965_scan_cancel - Cancel any currently executing HW scan
904 *
905 * NOTE: priv->mutex is not required before calling this function
906 */
907static int iwl4965_scan_cancel(struct iwl_priv *priv)
908{
909 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
910 clear_bit(STATUS_SCANNING, &priv->status);
911 return 0;
912 }
913
914 if (test_bit(STATUS_SCANNING, &priv->status)) {
915 if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
916 IWL_DEBUG_SCAN("Queuing scan abort.\n");
917 set_bit(STATUS_SCAN_ABORTING, &priv->status);
918 queue_work(priv->workqueue, &priv->abort_scan);
919
920 } else
921 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
922
923 return test_bit(STATUS_SCANNING, &priv->status);
924 }
925
926 return 0;
927}
928
929/**
930 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
931 * @ms: amount of time to wait (in milliseconds) for scan to abort
932 *
933 * NOTE: priv->mutex must be held before calling this function
934 */
935static int iwl4965_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
936{
937 unsigned long now = jiffies;
938 int ret;
939
940 ret = iwl4965_scan_cancel(priv);
941 if (ret && ms) {
942 mutex_unlock(&priv->mutex);
943 while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
944 test_bit(STATUS_SCANNING, &priv->status))
945 msleep(1);
946 mutex_lock(&priv->mutex);
947
948 return test_bit(STATUS_SCANNING, &priv->status);
949 }
950
951 return ret;
952}
953
954static void iwl4965_sequence_reset(struct iwl_priv *priv) 656static void iwl4965_sequence_reset(struct iwl_priv *priv)
955{ 657{
956 /* Reset ieee stats */ 658 /* Reset ieee stats */
@@ -962,7 +664,7 @@ static void iwl4965_sequence_reset(struct iwl_priv *priv)
962 priv->last_frag_num = -1; 664 priv->last_frag_num = -1;
963 priv->last_packet_time = 0; 665 priv->last_packet_time = 0;
964 666
965 iwl4965_scan_cancel(priv); 667 iwl_scan_cancel(priv);
966} 668}
967 669
968#define MAX_UCODE_BEACON_INTERVAL 4096 670#define MAX_UCODE_BEACON_INTERVAL 4096
@@ -1037,41 +739,6 @@ static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
1037 le16_to_cpu(priv->rxon_timing.atim_window)); 739 le16_to_cpu(priv->rxon_timing.atim_window));
1038} 740}
1039 741
1040static int iwl4965_scan_initiate(struct iwl_priv *priv)
1041{
1042 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
1043 IWL_ERROR("APs don't scan.\n");
1044 return 0;
1045 }
1046
1047 if (!iwl_is_ready_rf(priv)) {
1048 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1049 return -EIO;
1050 }
1051
1052 if (test_bit(STATUS_SCANNING, &priv->status)) {
1053 IWL_DEBUG_SCAN("Scan already in progress.\n");
1054 return -EAGAIN;
1055 }
1056
1057 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1058 IWL_DEBUG_SCAN("Scan request while abort pending. "
1059 "Queuing.\n");
1060 return -EAGAIN;
1061 }
1062
1063 IWL_DEBUG_INFO("Starting scan...\n");
1064 priv->scan_bands = 2;
1065 set_bit(STATUS_SCANNING, &priv->status);
1066 priv->scan_start = jiffies;
1067 priv->scan_pass_start = priv->scan_start;
1068
1069 queue_work(priv->workqueue, &priv->request_scan);
1070
1071 return 0;
1072}
1073
1074
1075static void iwl_set_flags_for_band(struct iwl_priv *priv, 742static void iwl_set_flags_for_band(struct iwl_priv *priv,
1076 enum ieee80211_band band) 743 enum ieee80211_band band)
1077{ 744{
@@ -1191,7 +858,7 @@ static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
1191 return -EAGAIN; 858 return -EAGAIN;
1192 859
1193 cancel_delayed_work(&priv->scan_check); 860 cancel_delayed_work(&priv->scan_check);
1194 if (iwl4965_scan_cancel_timeout(priv, 100)) { 861 if (iwl_scan_cancel_timeout(priv, 100)) {
1195 IWL_WARNING("Aborted scan still in progress after 100ms\n"); 862 IWL_WARNING("Aborted scan still in progress after 100ms\n");
1196 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); 863 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1197 return -EAGAIN; 864 return -EAGAIN;
@@ -1260,7 +927,7 @@ int iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
1260 disable_radio ? "OFF" : "ON"); 927 disable_radio ? "OFF" : "ON");
1261 928
1262 if (disable_radio) { 929 if (disable_radio) {
1263 iwl4965_scan_cancel(priv); 930 iwl_scan_cancel(priv);
1264 /* FIXME: This is a workaround for AP */ 931 /* FIXME: This is a workaround for AP */
1265 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { 932 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
1266 spin_lock_irqsave(&priv->lock, flags); 933 spin_lock_irqsave(&priv->lock, flags);
@@ -1680,118 +1347,6 @@ static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
1680 queue_work(priv->workqueue, &priv->beacon_update); 1347 queue_work(priv->workqueue, &priv->beacon_update);
1681} 1348}
1682 1349
1683/* Service response to REPLY_SCAN_CMD (0x80) */
1684static void iwl4965_rx_reply_scan(struct iwl_priv *priv,
1685 struct iwl_rx_mem_buffer *rxb)
1686{
1687#ifdef CONFIG_IWLWIFI_DEBUG
1688 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1689 struct iwl4965_scanreq_notification *notif =
1690 (struct iwl4965_scanreq_notification *)pkt->u.raw;
1691
1692 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
1693#endif
1694}
1695
1696/* Service SCAN_START_NOTIFICATION (0x82) */
1697static void iwl4965_rx_scan_start_notif(struct iwl_priv *priv,
1698 struct iwl_rx_mem_buffer *rxb)
1699{
1700 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1701 struct iwl4965_scanstart_notification *notif =
1702 (struct iwl4965_scanstart_notification *)pkt->u.raw;
1703 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
1704 IWL_DEBUG_SCAN("Scan start: "
1705 "%d [802.11%s] "
1706 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
1707 notif->channel,
1708 notif->band ? "bg" : "a",
1709 notif->tsf_high,
1710 notif->tsf_low, notif->status, notif->beacon_timer);
1711}
1712
1713/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
1714static void iwl4965_rx_scan_results_notif(struct iwl_priv *priv,
1715 struct iwl_rx_mem_buffer *rxb)
1716{
1717 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1718 struct iwl4965_scanresults_notification *notif =
1719 (struct iwl4965_scanresults_notification *)pkt->u.raw;
1720
1721 IWL_DEBUG_SCAN("Scan ch.res: "
1722 "%d [802.11%s] "
1723 "(TSF: 0x%08X:%08X) - %d "
1724 "elapsed=%lu usec (%dms since last)\n",
1725 notif->channel,
1726 notif->band ? "bg" : "a",
1727 le32_to_cpu(notif->tsf_high),
1728 le32_to_cpu(notif->tsf_low),
1729 le32_to_cpu(notif->statistics[0]),
1730 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
1731 jiffies_to_msecs(elapsed_jiffies
1732 (priv->last_scan_jiffies, jiffies)));
1733
1734 priv->last_scan_jiffies = jiffies;
1735 priv->next_scan_jiffies = 0;
1736}
1737
1738/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
1739static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv,
1740 struct iwl_rx_mem_buffer *rxb)
1741{
1742 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1743 struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
1744
1745 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
1746 scan_notif->scanned_channels,
1747 scan_notif->tsf_low,
1748 scan_notif->tsf_high, scan_notif->status);
1749
1750 /* The HW is no longer scanning */
1751 clear_bit(STATUS_SCAN_HW, &priv->status);
1752
1753 /* The scan completion notification came in, so kill that timer... */
1754 cancel_delayed_work(&priv->scan_check);
1755
1756 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
1757 (priv->scan_bands == 2) ? "2.4" : "5.2",
1758 jiffies_to_msecs(elapsed_jiffies
1759 (priv->scan_pass_start, jiffies)));
1760
1761 /* Remove this scanned band from the list
1762 * of pending bands to scan */
1763 priv->scan_bands--;
1764
1765 /* If a request to abort was given, or the scan did not succeed
1766 * then we reset the scan state machine and terminate,
1767 * re-queuing another scan if one has been requested */
1768 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1769 IWL_DEBUG_INFO("Aborted scan completed.\n");
1770 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1771 } else {
1772 /* If there are more bands on this scan pass reschedule */
1773 if (priv->scan_bands > 0)
1774 goto reschedule;
1775 }
1776
1777 priv->last_scan_jiffies = jiffies;
1778 priv->next_scan_jiffies = 0;
1779 IWL_DEBUG_INFO("Setting scan to off\n");
1780
1781 clear_bit(STATUS_SCANNING, &priv->status);
1782
1783 IWL_DEBUG_INFO("Scan took %dms\n",
1784 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
1785
1786 queue_work(priv->workqueue, &priv->scan_completed);
1787
1788 return;
1789
1790reschedule:
1791 priv->scan_pass_start = jiffies;
1792 queue_work(priv->workqueue, &priv->request_scan);
1793}
1794
1795/* Handle notification from uCode that card's power state is changing 1350/* Handle notification from uCode that card's power state is changing
1796 * due to software, hardware, or critical temperature RFKILL */ 1351 * due to software, hardware, or critical temperature RFKILL */
1797static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, 1352static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
@@ -1852,7 +1407,7 @@ static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
1852 clear_bit(STATUS_RF_KILL_SW, &priv->status); 1407 clear_bit(STATUS_RF_KILL_SW, &priv->status);
1853 1408
1854 if (!(flags & RXON_CARD_DISABLED)) 1409 if (!(flags & RXON_CARD_DISABLED))
1855 iwl4965_scan_cancel(priv); 1410 iwl_scan_cancel(priv);
1856 1411
1857 if ((test_bit(STATUS_RF_KILL_HW, &status) != 1412 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
1858 test_bit(STATUS_RF_KILL_HW, &priv->status)) || 1413 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
@@ -1902,13 +1457,9 @@ static void iwl4965_setup_rx_handlers(struct iwl_priv *priv)
1902 */ 1457 */
1903 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics; 1458 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics;
1904 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics; 1459 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics;
1905 /* scan handlers */ 1460
1906 priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan; 1461 iwl_setup_rx_scan_handlers(priv);
1907 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif; 1462
1908 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
1909 iwl4965_rx_scan_results_notif;
1910 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
1911 iwl4965_rx_scan_complete_notif;
1912 /* status change handler */ 1463 /* status change handler */
1913 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif; 1464 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
1914 1465
@@ -2456,138 +2007,6 @@ static irqreturn_t iwl4965_isr(int irq, void *data)
2456 return IRQ_NONE; 2007 return IRQ_NONE;
2457} 2008}
2458 2009
2459/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
2460 * sending probe req. This should be set long enough to hear probe responses
2461 * from more than one AP. */
2462#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
2463#define IWL_ACTIVE_DWELL_TIME_52 (10)
2464
2465/* For faster active scanning, scan will move to the next channel if fewer than
2466 * PLCP_QUIET_THRESH packets are heard on this channel within
2467 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
2468 * time if it's a quiet channel (nothing responded to our probe, and there's
2469 * no other traffic).
2470 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
2471#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
2472#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
2473
2474/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
2475 * Must be set longer than active dwell time.
2476 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
2477#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
2478#define IWL_PASSIVE_DWELL_TIME_52 (10)
2479#define IWL_PASSIVE_DWELL_BASE (100)
2480#define IWL_CHANNEL_TUNE_TIME 5
2481
2482static inline u16 iwl4965_get_active_dwell_time(struct iwl_priv *priv,
2483 enum ieee80211_band band)
2484{
2485 if (band == IEEE80211_BAND_5GHZ)
2486 return IWL_ACTIVE_DWELL_TIME_52;
2487 else
2488 return IWL_ACTIVE_DWELL_TIME_24;
2489}
2490
2491static u16 iwl4965_get_passive_dwell_time(struct iwl_priv *priv,
2492 enum ieee80211_band band)
2493{
2494 u16 active = iwl4965_get_active_dwell_time(priv, band);
2495 u16 passive = (band != IEEE80211_BAND_5GHZ) ?
2496 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
2497 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
2498
2499 if (iwl_is_associated(priv)) {
2500 /* If we're associated, we clamp the maximum passive
2501 * dwell time to be 98% of the beacon interval (minus
2502 * 2 * channel tune time) */
2503 passive = priv->beacon_int;
2504 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
2505 passive = IWL_PASSIVE_DWELL_BASE;
2506 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
2507 }
2508
2509 if (passive <= active)
2510 passive = active + 1;
2511
2512 return passive;
2513}
2514
2515static int iwl4965_get_channels_for_scan(struct iwl_priv *priv,
2516 enum ieee80211_band band,
2517 u8 is_active, u8 direct_mask,
2518 struct iwl4965_scan_channel *scan_ch)
2519{
2520 const struct ieee80211_channel *channels = NULL;
2521 const struct ieee80211_supported_band *sband;
2522 const struct iwl_channel_info *ch_info;
2523 u16 passive_dwell = 0;
2524 u16 active_dwell = 0;
2525 int added, i;
2526
2527 sband = iwl_get_hw_mode(priv, band);
2528 if (!sband)
2529 return 0;
2530
2531 channels = sband->channels;
2532
2533 active_dwell = iwl4965_get_active_dwell_time(priv, band);
2534 passive_dwell = iwl4965_get_passive_dwell_time(priv, band);
2535
2536 for (i = 0, added = 0; i < sband->n_channels; i++) {
2537 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
2538 continue;
2539
2540 scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq);
2541
2542 ch_info = iwl_get_channel_info(priv, band,
2543 scan_ch->channel);
2544 if (!is_channel_valid(ch_info)) {
2545 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
2546 scan_ch->channel);
2547 continue;
2548 }
2549
2550 if (!is_active || is_channel_passive(ch_info) ||
2551 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
2552 scan_ch->type = 0; /* passive */
2553 else
2554 scan_ch->type = 1; /* active */
2555
2556 if (scan_ch->type & 1)
2557 scan_ch->type |= (direct_mask << 1);
2558
2559 scan_ch->active_dwell = cpu_to_le16(active_dwell);
2560 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
2561
2562 /* Set txpower levels to defaults */
2563 scan_ch->tpc.dsp_atten = 110;
2564 /* scan_pwr_info->tpc.dsp_atten; */
2565
2566 /*scan_pwr_info->tpc.tx_gain; */
2567 if (band == IEEE80211_BAND_5GHZ)
2568 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
2569 else {
2570 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
2571 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
2572 * power level:
2573 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
2574 */
2575 }
2576
2577 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
2578 scan_ch->channel,
2579 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
2580 (scan_ch->type & 1) ?
2581 active_dwell : passive_dwell);
2582
2583 scan_ch++;
2584 added++;
2585 }
2586
2587 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
2588 return added;
2589}
2590
2591/****************************************************************************** 2010/******************************************************************************
2592 * 2011 *
2593 * uCode download functions 2012 * uCode download functions
@@ -3200,243 +2619,6 @@ static void iwl4965_bg_set_monitor(struct work_struct *work)
3200 mutex_unlock(&priv->mutex); 2619 mutex_unlock(&priv->mutex);
3201} 2620}
3202 2621
3203#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
3204
3205static void iwl4965_bg_scan_check(struct work_struct *data)
3206{
3207 struct iwl_priv *priv =
3208 container_of(data, struct iwl_priv, scan_check.work);
3209
3210 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3211 return;
3212
3213 mutex_lock(&priv->mutex);
3214 if (test_bit(STATUS_SCANNING, &priv->status) ||
3215 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
3216 IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting "
3217 "adapter (%dms)\n",
3218 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
3219
3220 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
3221 iwl4965_send_scan_abort(priv);
3222 }
3223 mutex_unlock(&priv->mutex);
3224}
3225
3226static void iwl4965_bg_request_scan(struct work_struct *data)
3227{
3228 struct iwl_priv *priv =
3229 container_of(data, struct iwl_priv, request_scan);
3230 struct iwl_host_cmd cmd = {
3231 .id = REPLY_SCAN_CMD,
3232 .len = sizeof(struct iwl4965_scan_cmd),
3233 .meta.flags = CMD_SIZE_HUGE,
3234 };
3235 struct iwl4965_scan_cmd *scan;
3236 struct ieee80211_conf *conf = NULL;
3237 u16 cmd_len;
3238 enum ieee80211_band band;
3239 u8 direct_mask;
3240 int ret = 0;
3241
3242 conf = ieee80211_get_hw_conf(priv->hw);
3243
3244 mutex_lock(&priv->mutex);
3245
3246 if (!iwl_is_ready(priv)) {
3247 IWL_WARNING("request scan called when driver not ready.\n");
3248 goto done;
3249 }
3250
3251 /* Make sure the scan wasn't cancelled before this queued work
3252 * was given the chance to run... */
3253 if (!test_bit(STATUS_SCANNING, &priv->status))
3254 goto done;
3255
3256 /* This should never be called or scheduled if there is currently
3257 * a scan active in the hardware. */
3258 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
3259 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
3260 "Ignoring second request.\n");
3261 ret = -EIO;
3262 goto done;
3263 }
3264
3265 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3266 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
3267 goto done;
3268 }
3269
3270 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
3271 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
3272 goto done;
3273 }
3274
3275 if (iwl_is_rfkill(priv)) {
3276 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
3277 goto done;
3278 }
3279
3280 if (!test_bit(STATUS_READY, &priv->status)) {
3281 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
3282 goto done;
3283 }
3284
3285 if (!priv->scan_bands) {
3286 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
3287 goto done;
3288 }
3289
3290 if (!priv->scan) {
3291 priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) +
3292 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
3293 if (!priv->scan) {
3294 ret = -ENOMEM;
3295 goto done;
3296 }
3297 }
3298 scan = priv->scan;
3299 memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE);
3300
3301 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
3302 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
3303
3304 if (iwl_is_associated(priv)) {
3305 u16 interval = 0;
3306 u32 extra;
3307 u32 suspend_time = 100;
3308 u32 scan_suspend_time = 100;
3309 unsigned long flags;
3310
3311 IWL_DEBUG_INFO("Scanning while associated...\n");
3312
3313 spin_lock_irqsave(&priv->lock, flags);
3314 interval = priv->beacon_int;
3315 spin_unlock_irqrestore(&priv->lock, flags);
3316
3317 scan->suspend_time = 0;
3318 scan->max_out_time = cpu_to_le32(200 * 1024);
3319 if (!interval)
3320 interval = suspend_time;
3321
3322 extra = (suspend_time / interval) << 22;
3323 scan_suspend_time = (extra |
3324 ((suspend_time % interval) * 1024));
3325 scan->suspend_time = cpu_to_le32(scan_suspend_time);
3326 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
3327 scan_suspend_time, interval);
3328 }
3329
3330 /* We should add the ability for user to lock to PASSIVE ONLY */
3331 if (priv->one_direct_scan) {
3332 IWL_DEBUG_SCAN
3333 ("Kicking off one direct scan for '%s'\n",
3334 iwl4965_escape_essid(priv->direct_ssid,
3335 priv->direct_ssid_len));
3336 scan->direct_scan[0].id = WLAN_EID_SSID;
3337 scan->direct_scan[0].len = priv->direct_ssid_len;
3338 memcpy(scan->direct_scan[0].ssid,
3339 priv->direct_ssid, priv->direct_ssid_len);
3340 direct_mask = 1;
3341 } else if (!iwl_is_associated(priv) && priv->essid_len) {
3342 IWL_DEBUG_SCAN
3343 ("Kicking off one direct scan for '%s' when not associated\n",
3344 iwl4965_escape_essid(priv->essid, priv->essid_len));
3345 scan->direct_scan[0].id = WLAN_EID_SSID;
3346 scan->direct_scan[0].len = priv->essid_len;
3347 memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
3348 direct_mask = 1;
3349 } else {
3350 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
3351 direct_mask = 0;
3352 }
3353
3354 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
3355 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
3356 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
3357
3358
3359 switch (priv->scan_bands) {
3360 case 2:
3361 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
3362 scan->tx_cmd.rate_n_flags =
3363 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP,
3364 RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK);
3365
3366 scan->good_CRC_th = 0;
3367 band = IEEE80211_BAND_2GHZ;
3368 break;
3369
3370 case 1:
3371 scan->tx_cmd.rate_n_flags =
3372 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
3373 RATE_MCS_ANT_B_MSK);
3374 scan->good_CRC_th = IWL_GOOD_CRC_TH;
3375 band = IEEE80211_BAND_5GHZ;
3376 break;
3377
3378 default:
3379 IWL_WARNING("Invalid scan band count\n");
3380 goto done;
3381 }
3382
3383 /* We don't build a direct scan probe request; the uCode will do
3384 * that based on the direct_mask added to each channel entry */
3385 cmd_len = iwl4965_fill_probe_req(priv, band,
3386 (struct ieee80211_mgmt *)scan->data,
3387 IWL_MAX_SCAN_SIZE - sizeof(*scan), 0);
3388
3389 scan->tx_cmd.len = cpu_to_le16(cmd_len);
3390 /* select Rx chains */
3391
3392 /* Force use of chains B and C (0x6) for scan Rx.
3393 * Avoid A (0x1) because of its off-channel reception on A-band.
3394 * MIMO is not used here, but value is required to make uCode happy. */
3395 scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
3396 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
3397 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) |
3398 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
3399
3400 if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
3401 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
3402
3403 if (direct_mask)
3404 scan->channel_count =
3405 iwl4965_get_channels_for_scan(
3406 priv, band, 1, /* active */
3407 direct_mask,
3408 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
3409 else
3410 scan->channel_count =
3411 iwl4965_get_channels_for_scan(
3412 priv, band, 0, /* passive */
3413 direct_mask,
3414 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
3415
3416 scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK |
3417 RXON_FILTER_BCON_AWARE_MSK);
3418 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
3419 scan->channel_count * sizeof(struct iwl4965_scan_channel);
3420 cmd.data = scan;
3421 scan->len = cpu_to_le16(cmd.len);
3422
3423 set_bit(STATUS_SCAN_HW, &priv->status);
3424 ret = iwl_send_cmd_sync(priv, &cmd);
3425 if (ret)
3426 goto done;
3427
3428 queue_delayed_work(priv->workqueue, &priv->scan_check,
3429 IWL_SCAN_CHECK_WATCHDOG);
3430
3431 mutex_unlock(&priv->mutex);
3432 return;
3433
3434 done:
3435 /* inform mac80211 scan aborted */
3436 queue_work(priv->workqueue, &priv->scan_completed);
3437 mutex_unlock(&priv->mutex);
3438}
3439
3440static void iwl_bg_run_time_calib_work(struct work_struct *work) 2622static void iwl_bg_run_time_calib_work(struct work_struct *work)
3441{ 2623{
3442 struct iwl_priv *priv = container_of(work, struct iwl_priv, 2624 struct iwl_priv *priv = container_of(work, struct iwl_priv,
@@ -3521,7 +2703,7 @@ static void iwl4965_post_associate(struct iwl_priv *priv)
3521 if (!priv->vif || !priv->is_open) 2703 if (!priv->vif || !priv->is_open)
3522 return; 2704 return;
3523 2705
3524 iwl4965_scan_cancel_timeout(priv, 200); 2706 iwl_scan_cancel_timeout(priv, 200);
3525 2707
3526 conf = ieee80211_get_hw_conf(priv->hw); 2708 conf = ieee80211_get_hw_conf(priv->hw);
3527 2709
@@ -3615,24 +2797,9 @@ static void iwl4965_bg_post_associate(struct work_struct *data)
3615 2797
3616} 2798}
3617 2799
3618static void iwl4965_bg_abort_scan(struct work_struct *work)
3619{
3620 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
3621
3622 if (!iwl_is_ready(priv))
3623 return;
3624
3625 mutex_lock(&priv->mutex);
3626
3627 set_bit(STATUS_SCAN_ABORTING, &priv->status);
3628 iwl4965_send_scan_abort(priv);
3629
3630 mutex_unlock(&priv->mutex);
3631}
3632
3633static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); 2800static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
3634 2801
3635static void iwl4965_bg_scan_completed(struct work_struct *work) 2802static void iwl_bg_scan_completed(struct work_struct *work)
3636{ 2803{
3637 struct iwl_priv *priv = 2804 struct iwl_priv *priv =
3638 container_of(work, struct iwl_priv, scan_completed); 2805 container_of(work, struct iwl_priv, scan_completed);
@@ -3759,7 +2926,7 @@ static void iwl4965_mac_stop(struct ieee80211_hw *hw)
3759 * RXON_FILTER_ASSOC_MSK BIT 2926 * RXON_FILTER_ASSOC_MSK BIT
3760 */ 2927 */
3761 mutex_lock(&priv->mutex); 2928 mutex_lock(&priv->mutex);
3762 iwl4965_scan_cancel_timeout(priv, 100); 2929 iwl_scan_cancel_timeout(priv, 100);
3763 cancel_delayed_work(&priv->post_associate); 2930 cancel_delayed_work(&priv->post_associate);
3764 mutex_unlock(&priv->mutex); 2931 mutex_unlock(&priv->mutex);
3765 } 2932 }
@@ -4071,7 +3238,7 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
4071 !is_multicast_ether_addr(conf->bssid)) { 3238 !is_multicast_ether_addr(conf->bssid)) {
4072 /* If there is currently a HW scan going on in the background 3239 /* If there is currently a HW scan going on in the background
4073 * then we need to cancel it else the RXON below will fail. */ 3240 * then we need to cancel it else the RXON below will fail. */
4074 if (iwl4965_scan_cancel_timeout(priv, 100)) { 3241 if (iwl_scan_cancel_timeout(priv, 100)) {
4075 IWL_WARNING("Aborted scan still in progress " 3242 IWL_WARNING("Aborted scan still in progress "
4076 "after 100ms\n"); 3243 "after 100ms\n");
4077 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); 3244 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
@@ -4096,7 +3263,7 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
4096 } 3263 }
4097 3264
4098 } else { 3265 } else {
4099 iwl4965_scan_cancel_timeout(priv, 100); 3266 iwl_scan_cancel_timeout(priv, 100);
4100 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; 3267 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4101 iwl4965_commit_rxon(priv); 3268 iwl4965_commit_rxon(priv);
4102 } 3269 }
@@ -4154,7 +3321,7 @@ static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
4154 mutex_lock(&priv->mutex); 3321 mutex_lock(&priv->mutex);
4155 3322
4156 if (iwl_is_ready_rf(priv)) { 3323 if (iwl_is_ready_rf(priv)) {
4157 iwl4965_scan_cancel_timeout(priv, 100); 3324 iwl_scan_cancel_timeout(priv, 100);
4158 cancel_delayed_work(&priv->post_associate); 3325 cancel_delayed_work(&priv->post_associate);
4159 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; 3326 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4160 iwl4965_commit_rxon(priv); 3327 iwl4965_commit_rxon(priv);
@@ -4268,7 +3435,7 @@ static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
4268 } 3435 }
4269 if (len) { 3436 if (len) {
4270 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", 3437 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
4271 iwl4965_escape_essid(ssid, len), (int)len); 3438 iwl_escape_essid(ssid, len), (int)len);
4272 3439
4273 priv->one_direct_scan = 1; 3440 priv->one_direct_scan = 1;
4274 priv->direct_ssid_len = (u8) 3441 priv->direct_ssid_len = (u8)
@@ -4277,7 +3444,7 @@ static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
4277 } else 3444 } else
4278 priv->one_direct_scan = 0; 3445 priv->one_direct_scan = 0;
4279 3446
4280 rc = iwl4965_scan_initiate(priv); 3447 rc = iwl_scan_initiate(priv);
4281 3448
4282 IWL_DEBUG_MAC80211("leave\n"); 3449 IWL_DEBUG_MAC80211("leave\n");
4283 3450
@@ -4308,7 +3475,7 @@ static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
4308 return; 3475 return;
4309 } 3476 }
4310 3477
4311 iwl4965_scan_cancel_timeout(priv, 100); 3478 iwl_scan_cancel_timeout(priv, 100);
4312 3479
4313 key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); 3480 key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
4314 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); 3481 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
@@ -4366,7 +3533,7 @@ static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4366 } 3533 }
4367 3534
4368 mutex_lock(&priv->mutex); 3535 mutex_lock(&priv->mutex);
4369 iwl4965_scan_cancel_timeout(priv, 100); 3536 iwl_scan_cancel_timeout(priv, 100);
4370 mutex_unlock(&priv->mutex); 3537 mutex_unlock(&priv->mutex);
4371 3538
4372 /* If we are getting WEP group key and we didn't receive any key mapping 3539 /* If we are getting WEP group key and we didn't receive any key mapping
@@ -4562,7 +3729,7 @@ static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
4562 * clear RXON_FILTER_ASSOC_MSK bit 3729 * clear RXON_FILTER_ASSOC_MSK bit
4563 */ 3730 */
4564 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { 3731 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
4565 iwl4965_scan_cancel_timeout(priv, 100); 3732 iwl_scan_cancel_timeout(priv, 100);
4566 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; 3733 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4567 iwl4965_commit_rxon(priv); 3734 iwl4965_commit_rxon(priv);
4568 } 3735 }
@@ -4759,7 +3926,7 @@ static ssize_t store_flags(struct device *d,
4759 mutex_lock(&priv->mutex); 3926 mutex_lock(&priv->mutex);
4760 if (le32_to_cpu(priv->staging_rxon.flags) != flags) { 3927 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
4761 /* Cancel any currently running scans... */ 3928 /* Cancel any currently running scans... */
4762 if (iwl4965_scan_cancel_timeout(priv, 100)) 3929 if (iwl_scan_cancel_timeout(priv, 100))
4763 IWL_WARNING("Could not cancel scan.\n"); 3930 IWL_WARNING("Could not cancel scan.\n");
4764 else { 3931 else {
4765 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", 3932 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
@@ -4794,7 +3961,7 @@ static ssize_t store_filter_flags(struct device *d,
4794 mutex_lock(&priv->mutex); 3961 mutex_lock(&priv->mutex);
4795 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { 3962 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
4796 /* Cancel any currently running scans... */ 3963 /* Cancel any currently running scans... */
4797 if (iwl4965_scan_cancel_timeout(priv, 100)) 3964 if (iwl_scan_cancel_timeout(priv, 100))
4798 IWL_WARNING("Could not cancel scan.\n"); 3965 IWL_WARNING("Could not cancel scan.\n");
4799 else { 3966 else {
4800 IWL_DEBUG_INFO("Committing rxon.filter_flags = " 3967 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
@@ -5062,9 +4229,6 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
5062 INIT_WORK(&priv->up, iwl4965_bg_up); 4229 INIT_WORK(&priv->up, iwl4965_bg_up);
5063 INIT_WORK(&priv->restart, iwl4965_bg_restart); 4230 INIT_WORK(&priv->restart, iwl4965_bg_restart);
5064 INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish); 4231 INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
5065 INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed);
5066 INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan);
5067 INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan);
5068 INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill); 4232 INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
5069 INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update); 4233 INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
5070 INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor); 4234 INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
@@ -5072,7 +4236,10 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
5072 INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate); 4236 INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate);
5073 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); 4237 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
5074 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); 4238 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
5075 INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check); 4239
4240 /* FIXME : remove when resolved PENDING */
4241 INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
4242 iwl_setup_scan_deferred_work(priv);
5076 4243
5077 if (priv->cfg->ops->lib->setup_deferred_work) 4244 if (priv->cfg->ops->lib->setup_deferred_work)
5078 priv->cfg->ops->lib->setup_deferred_work(priv); 4245 priv->cfg->ops->lib->setup_deferred_work(priv);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-04 06:32:05 -0500