1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/version.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/mac80211.h>
46 #include <asm/div64.h>
48 #include "iwl-eeprom.h"
52 #include "iwl-helpers.h"
54 #include "iwl-calib.h"
57 /******************************************************************************
61 ******************************************************************************/
64 * module name, copyright, version, etc.
65 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
68 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
70 #ifdef CONFIG_IWLWIFI_DEBUG
76 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
82 #define DRV_VERSION IWLWIFI_VERSION VD VS
85 MODULE_DESCRIPTION(DRV_DESCRIPTION);
86 MODULE_VERSION(DRV_VERSION);
87 MODULE_AUTHOR(DRV_COPYRIGHT);
88 MODULE_LICENSE("GPL");
90 static const struct ieee80211_supported_band *iwl_get_hw_mode(
91 struct iwl_priv *priv, enum ieee80211_band band)
93 return priv->hw->wiphy->bands[band];
96 static int iwl4965_is_empty_essid(const char *essid, int essid_len)
98 /* Single white space is for Linksys APs */
99 if (essid_len == 1 && essid[0] == ' ')
102 /* Otherwise, if the entire essid is 0, we assume it is hidden */
105 if (essid[essid_len] != '\0')
112 static const char *iwl4965_escape_essid(const char *essid, u8 essid_len)
114 static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
115 const char *s = essid;
118 if (iwl4965_is_empty_essid(essid, essid_len)) {
119 memcpy(escaped, "<hidden>", sizeof("<hidden>"));
123 essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
124 while (essid_len--) {
136 /*************** STATION TABLE MANAGEMENT ****
137 * mac80211 should be examined to determine if sta_info is duplicating
138 * the functionality provided here
141 /**************************************************************/
145 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
147 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
150 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
152 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
157 * iwl4965_check_rxon_cmd - validate RXON structure is valid
159 * NOTE: This is really only useful during development and can eventually
160 * be #ifdef'd out once the driver is stable and folks aren't actively
163 static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
168 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
169 error |= le32_to_cpu(rxon->flags &
170 (RXON_FLG_TGJ_NARROW_BAND_MSK |
171 RXON_FLG_RADAR_DETECT_MSK));
173 IWL_WARNING("check 24G fields %d | %d\n",
176 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
177 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
179 IWL_WARNING("check 52 fields %d | %d\n",
181 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
183 IWL_WARNING("check 52 CCK %d | %d\n",
186 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
188 IWL_WARNING("check mac addr %d | %d\n", counter++, error);
190 /* make sure basic rates 6Mbps and 1Mbps are supported */
191 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
192 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
194 IWL_WARNING("check basic rate %d | %d\n", counter++, error);
196 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
198 IWL_WARNING("check assoc id %d | %d\n", counter++, error);
200 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
201 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
203 IWL_WARNING("check CCK and short slot %d | %d\n",
206 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
207 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
209 IWL_WARNING("check CCK & auto detect %d | %d\n",
212 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
213 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
215 IWL_WARNING("check TGG and auto detect %d | %d\n",
219 IWL_WARNING("Tuning to channel %d\n",
220 le16_to_cpu(rxon->channel));
223 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
230 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
231 * @priv: staging_rxon is compared to active_rxon
233 * If the RXON structure is changing enough to require a new tune,
234 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
235 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
237 static int iwl4965_full_rxon_required(struct iwl_priv *priv)
240 /* These items are only settable from the full RXON command */
241 if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
242 compare_ether_addr(priv->staging_rxon.bssid_addr,
243 priv->active_rxon.bssid_addr) ||
244 compare_ether_addr(priv->staging_rxon.node_addr,
245 priv->active_rxon.node_addr) ||
246 compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
247 priv->active_rxon.wlap_bssid_addr) ||
248 (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
249 (priv->staging_rxon.channel != priv->active_rxon.channel) ||
250 (priv->staging_rxon.air_propagation !=
251 priv->active_rxon.air_propagation) ||
252 (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
253 priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
254 (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
255 priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
256 (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
257 (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
260 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
261 * be updated with the RXON_ASSOC command -- however only some
262 * flag transitions are allowed using RXON_ASSOC */
264 /* Check if we are not switching bands */
265 if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
266 (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
269 /* Check if we are switching association toggle */
270 if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
271 (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
278 * iwl4965_commit_rxon - commit staging_rxon to hardware
280 * The RXON command in staging_rxon is committed to the hardware and
281 * the active_rxon structure is updated with the new data. This
282 * function correctly transitions out of the RXON_ASSOC_MSK state if
283 * a HW tune is required based on the RXON structure changes.
285 static int iwl4965_commit_rxon(struct iwl_priv *priv)
287 /* cast away the const for active_rxon in this function */
288 struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
289 DECLARE_MAC_BUF(mac);
292 if (!iwl_is_alive(priv))
295 /* always get timestamp with Rx frame */
296 priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
298 rc = iwl4965_check_rxon_cmd(&priv->staging_rxon);
300 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
304 /* If we don't need to send a full RXON, we can use
305 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
306 * and other flags for the current radio configuration. */
307 if (!iwl4965_full_rxon_required(priv)) {
308 rc = iwl_send_rxon_assoc(priv);
310 IWL_ERROR("Error setting RXON_ASSOC "
311 "configuration (%d).\n", rc);
315 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
320 /* station table will be cleared */
321 priv->assoc_station_added = 0;
323 /* If we are currently associated and the new config requires
324 * an RXON_ASSOC and the new config wants the associated mask enabled,
325 * we must clear the associated from the active configuration
326 * before we apply the new config */
327 if (iwl_is_associated(priv) &&
328 (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
329 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
330 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
332 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
333 sizeof(struct iwl_rxon_cmd),
336 /* If the mask clearing failed then we set
337 * active_rxon back to what it was previously */
339 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
340 IWL_ERROR("Error clearing ASSOC_MSK on current "
341 "configuration (%d).\n", rc);
346 IWL_DEBUG_INFO("Sending RXON\n"
347 "* with%s RXON_FILTER_ASSOC_MSK\n"
350 ((priv->staging_rxon.filter_flags &
351 RXON_FILTER_ASSOC_MSK) ? "" : "out"),
352 le16_to_cpu(priv->staging_rxon.channel),
353 print_mac(mac, priv->staging_rxon.bssid_addr));
355 iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
356 /* Apply the new configuration */
357 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
358 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
360 IWL_ERROR("Error setting new configuration (%d).\n", rc);
364 iwl_remove_station(priv, iwl_bcast_addr, 0);
365 iwlcore_clear_stations_table(priv);
367 if (!priv->error_recovering)
368 priv->start_calib = 0;
370 iwl_init_sensitivity(priv);
372 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
374 /* If we issue a new RXON command which required a tune then we must
375 * send a new TXPOWER command or we won't be able to Tx any frames */
376 rc = iwl4965_hw_reg_send_txpower(priv);
378 IWL_ERROR("Error setting Tx power (%d).\n", rc);
382 /* Add the broadcast address so we can send broadcast frames */
383 if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
384 IWL_INVALID_STATION) {
385 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
389 /* If we have set the ASSOC_MSK and we are in BSS mode then
390 * add the IWL_AP_ID to the station rate table */
391 if (iwl_is_associated(priv) &&
392 (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
393 if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
394 == IWL_INVALID_STATION) {
395 IWL_ERROR("Error adding AP address for transmit.\n");
398 priv->assoc_station_added = 1;
399 if (priv->default_wep_key &&
400 iwl_send_static_wepkey_cmd(priv, 0))
401 IWL_ERROR("Could not send WEP static key.\n");
407 void iwl4965_update_chain_flags(struct iwl_priv *priv)
410 iwl_set_rxon_chain(priv);
411 iwl4965_commit_rxon(priv);
414 static int iwl4965_send_bt_config(struct iwl_priv *priv)
416 struct iwl4965_bt_cmd bt_cmd = {
424 return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
425 sizeof(struct iwl4965_bt_cmd), &bt_cmd);
428 static int iwl4965_send_scan_abort(struct iwl_priv *priv)
431 struct iwl_rx_packet *res;
432 struct iwl_host_cmd cmd = {
433 .id = REPLY_SCAN_ABORT_CMD,
434 .meta.flags = CMD_WANT_SKB,
437 /* If there isn't a scan actively going on in the hardware
438 * then we are in between scan bands and not actually
439 * actively scanning, so don't send the abort command */
440 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
441 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
445 ret = iwl_send_cmd_sync(priv, &cmd);
447 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
451 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
452 if (res->u.status != CAN_ABORT_STATUS) {
453 /* The scan abort will return 1 for success or
454 * 2 for "failure". A failure condition can be
455 * due to simply not being in an active scan which
456 * can occur if we send the scan abort before we
457 * the microcode has notified us that a scan is
459 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
460 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
461 clear_bit(STATUS_SCAN_HW, &priv->status);
464 dev_kfree_skb_any(cmd.meta.u.skb);
472 * Use: Sets the device's internal card state to enable, disable, or halt
474 * When in the 'enable' state the card operates as normal.
475 * When in the 'disable' state, the card enters into a low power mode.
476 * When in the 'halt' state, the card is shut down and must be fully
477 * restarted to come back on.
479 static int iwl4965_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
481 struct iwl_host_cmd cmd = {
482 .id = REPLY_CARD_STATE_CMD,
485 .meta.flags = meta_flag,
488 return iwl_send_cmd(priv, &cmd);
491 static void iwl_clear_free_frames(struct iwl_priv *priv)
493 struct list_head *element;
495 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
498 while (!list_empty(&priv->free_frames)) {
499 element = priv->free_frames.next;
501 kfree(list_entry(element, struct iwl_frame, list));
502 priv->frames_count--;
505 if (priv->frames_count) {
506 IWL_WARNING("%d frames still in use. Did we lose one?\n",
508 priv->frames_count = 0;
512 static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
514 struct iwl_frame *frame;
515 struct list_head *element;
516 if (list_empty(&priv->free_frames)) {
517 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
519 IWL_ERROR("Could not allocate frame!\n");
523 priv->frames_count++;
527 element = priv->free_frames.next;
529 return list_entry(element, struct iwl_frame, list);
532 static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
534 memset(frame, 0, sizeof(*frame));
535 list_add(&frame->list, &priv->free_frames);
538 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
539 struct ieee80211_hdr *hdr,
540 const u8 *dest, int left)
543 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
544 ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
545 (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
548 if (priv->ibss_beacon->len > left)
551 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
553 return priv->ibss_beacon->len;
556 static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
562 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
563 rate_mask = priv->active_rate_basic & 0xF;
565 rate_mask = priv->active_rate_basic & 0xFF0;
567 /* Find lowest valid rate */
568 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
569 i = iwl_rates[i].next_ieee) {
570 if (rate_mask & (1 << i))
571 return iwl_rates[i].plcp;
574 /* No valid rate was found. Assign the lowest one */
575 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
576 return IWL_RATE_1M_PLCP;
578 return IWL_RATE_6M_PLCP;
581 static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
583 struct iwl_frame *frame;
584 unsigned int frame_size;
588 frame = iwl_get_free_frame(priv);
591 IWL_ERROR("Could not obtain free frame buffer for beacon "
596 rate = iwl4965_rate_get_lowest_plcp(priv);
598 frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
600 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
603 iwl_free_frame(priv, frame);
608 /******************************************************************************
610 * Misc. internal state and helper functions
612 ******************************************************************************/
615 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
617 * return : set the bit for each supported rate insert in ie
619 static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate,
620 u16 basic_rate, int *left)
622 u16 ret_rates = 0, bit;
627 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
628 if (bit & supported_rate) {
630 rates[*cnt] = iwl_rates[i].ieee |
631 ((bit & basic_rate) ? 0x80 : 0x00);
635 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
643 #ifdef CONFIG_IWL4965_HT
644 static void iwl4965_ht_conf(struct iwl_priv *priv,
645 struct ieee80211_bss_conf *bss_conf)
647 struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
648 struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
649 struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
651 IWL_DEBUG_MAC80211("enter: \n");
653 iwl_conf->is_ht = bss_conf->assoc_ht;
655 if (!iwl_conf->is_ht)
658 priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
660 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
661 iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
662 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
663 iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
665 iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
666 iwl_conf->max_amsdu_size =
667 !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
669 iwl_conf->supported_chan_width =
670 !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
671 iwl_conf->extension_chan_offset =
672 ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
673 /* If no above or below channel supplied disable FAT channel */
674 if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE &&
675 iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW)
676 iwl_conf->supported_chan_width = 0;
678 iwl_conf->tx_mimo_ps_mode =
679 (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
680 memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
682 iwl_conf->control_channel = ht_bss_conf->primary_channel;
683 iwl_conf->tx_chan_width =
684 !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
685 iwl_conf->ht_protection =
686 ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
687 iwl_conf->non_GF_STA_present =
688 !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
690 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
691 IWL_DEBUG_MAC80211("leave\n");
694 static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
697 struct ieee80211_ht_cap *ht_cap;
699 if (!sband || !sband->ht_info.ht_supported)
702 if (*left < sizeof(struct ieee80211_ht_cap))
705 *pos++ = sizeof(struct ieee80211_ht_cap);
706 ht_cap = (struct ieee80211_ht_cap *) pos;
708 ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
709 memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
710 ht_cap->ampdu_params_info =
711 (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
712 ((sband->ht_info.ampdu_density << 2) &
713 IEEE80211_HT_CAP_AMPDU_DENSITY);
714 *left -= sizeof(struct ieee80211_ht_cap);
717 static inline void iwl4965_ht_conf(struct iwl_priv *priv,
718 struct ieee80211_bss_conf *bss_conf)
721 static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
729 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
731 static u16 iwl4965_fill_probe_req(struct iwl_priv *priv,
732 enum ieee80211_band band,
733 struct ieee80211_mgmt *frame,
734 int left, int is_direct)
738 u16 active_rates, ret_rates, cck_rates, active_rate_basic;
739 const struct ieee80211_supported_band *sband =
740 iwl_get_hw_mode(priv, band);
742 /* Make sure there is enough space for the probe request,
743 * two mandatory IEs and the data */
749 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
750 memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
751 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
752 memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
755 /* fill in our indirect SSID IE */
762 pos = &(frame->u.probe_req.variable[0]);
763 *pos++ = WLAN_EID_SSID;
766 /* fill in our direct SSID IE... */
769 left -= 2 + priv->essid_len;
772 /* ... fill it in... */
773 *pos++ = WLAN_EID_SSID;
774 *pos++ = priv->essid_len;
775 memcpy(pos, priv->essid, priv->essid_len);
776 pos += priv->essid_len;
777 len += 2 + priv->essid_len;
780 /* fill in supported rate */
786 /* ... fill it in... */
787 *pos++ = WLAN_EID_SUPP_RATES;
790 /* exclude 60M rate */
791 active_rates = priv->rates_mask;
792 active_rates &= ~IWL_RATE_60M_MASK;
794 active_rate_basic = active_rates & IWL_BASIC_RATES_MASK;
796 cck_rates = IWL_CCK_RATES_MASK & active_rates;
797 ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates,
798 active_rate_basic, &left);
799 active_rates &= ~ret_rates;
801 ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates,
802 active_rate_basic, &left);
803 active_rates &= ~ret_rates;
807 if (active_rates == 0)
810 /* fill in supported extended rate */
815 /* ... fill it in... */
816 *pos++ = WLAN_EID_EXT_SUPP_RATES;
818 iwl4965_supported_rate_to_ie(pos, active_rates,
819 active_rate_basic, &left);
829 *pos++ = WLAN_EID_HT_CAPABILITY;
832 iwl_ht_cap_to_ie(sband, pos, &left);
842 static int iwl4965_send_qos_params_command(struct iwl_priv *priv,
843 struct iwl4965_qosparam_cmd *qos)
846 return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM,
847 sizeof(struct iwl4965_qosparam_cmd), qos);
850 static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force)
854 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
857 if (!priv->qos_data.qos_enable)
860 spin_lock_irqsave(&priv->lock, flags);
861 priv->qos_data.def_qos_parm.qos_flags = 0;
863 if (priv->qos_data.qos_cap.q_AP.queue_request &&
864 !priv->qos_data.qos_cap.q_AP.txop_request)
865 priv->qos_data.def_qos_parm.qos_flags |=
866 QOS_PARAM_FLG_TXOP_TYPE_MSK;
867 if (priv->qos_data.qos_active)
868 priv->qos_data.def_qos_parm.qos_flags |=
869 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
871 #ifdef CONFIG_IWL4965_HT
872 if (priv->current_ht_config.is_ht)
873 priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
874 #endif /* CONFIG_IWL4965_HT */
876 spin_unlock_irqrestore(&priv->lock, flags);
878 if (force || iwl_is_associated(priv)) {
879 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
880 priv->qos_data.qos_active,
881 priv->qos_data.def_qos_parm.qos_flags);
883 iwl4965_send_qos_params_command(priv,
884 &(priv->qos_data.def_qos_parm));
888 int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
890 /* Filter incoming packets to determine if they are targeted toward
891 * this network, discarding packets coming from ourselves */
892 switch (priv->iw_mode) {
893 case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */
894 /* packets from our adapter are dropped (echo) */
895 if (!compare_ether_addr(header->addr2, priv->mac_addr))
897 /* {broad,multi}cast packets to our IBSS go through */
898 if (is_multicast_ether_addr(header->addr1))
899 return !compare_ether_addr(header->addr3, priv->bssid);
900 /* packets to our adapter go through */
901 return !compare_ether_addr(header->addr1, priv->mac_addr);
902 case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */
903 /* packets from our adapter are dropped (echo) */
904 if (!compare_ether_addr(header->addr3, priv->mac_addr))
906 /* {broad,multi}cast packets to our BSS go through */
907 if (is_multicast_ether_addr(header->addr1))
908 return !compare_ether_addr(header->addr2, priv->bssid);
909 /* packets to our adapter go through */
910 return !compare_ether_addr(header->addr1, priv->mac_addr);
921 * iwl4965_scan_cancel - Cancel any currently executing HW scan
923 * NOTE: priv->mutex is not required before calling this function
925 static int iwl4965_scan_cancel(struct iwl_priv *priv)
927 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
928 clear_bit(STATUS_SCANNING, &priv->status);
932 if (test_bit(STATUS_SCANNING, &priv->status)) {
933 if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
934 IWL_DEBUG_SCAN("Queuing scan abort.\n");
935 set_bit(STATUS_SCAN_ABORTING, &priv->status);
936 queue_work(priv->workqueue, &priv->abort_scan);
939 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
941 return test_bit(STATUS_SCANNING, &priv->status);
948 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
949 * @ms: amount of time to wait (in milliseconds) for scan to abort
951 * NOTE: priv->mutex must be held before calling this function
953 static int iwl4965_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
955 unsigned long now = jiffies;
958 ret = iwl4965_scan_cancel(priv);
960 mutex_unlock(&priv->mutex);
961 while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
962 test_bit(STATUS_SCANNING, &priv->status))
964 mutex_lock(&priv->mutex);
966 return test_bit(STATUS_SCANNING, &priv->status);
972 static void iwl4965_sequence_reset(struct iwl_priv *priv)
974 /* Reset ieee stats */
976 /* We don't reset the net_device_stats (ieee->stats) on
979 priv->last_seq_num = -1;
980 priv->last_frag_num = -1;
981 priv->last_packet_time = 0;
983 iwl4965_scan_cancel(priv);
986 #define MAX_UCODE_BEACON_INTERVAL 4096
987 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
989 static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
992 u16 beacon_factor = 0;
995 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
996 / MAX_UCODE_BEACON_INTERVAL;
997 new_val = beacon_val / beacon_factor;
999 return cpu_to_le16(new_val);
1002 static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
1004 u64 interval_tm_unit;
1006 unsigned long flags;
1007 struct ieee80211_conf *conf = NULL;
1010 conf = ieee80211_get_hw_conf(priv->hw);
1012 spin_lock_irqsave(&priv->lock, flags);
1013 priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32);
1014 priv->rxon_timing.timestamp.dw[0] =
1015 cpu_to_le32(priv->timestamp & 0xFFFFFFFF);
1017 priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
1019 tsf = priv->timestamp;
1021 beacon_int = priv->beacon_int;
1022 spin_unlock_irqrestore(&priv->lock, flags);
1024 if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
1025 if (beacon_int == 0) {
1026 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
1027 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
1029 priv->rxon_timing.beacon_interval =
1030 cpu_to_le16(beacon_int);
1031 priv->rxon_timing.beacon_interval =
1032 iwl4965_adjust_beacon_interval(
1033 le16_to_cpu(priv->rxon_timing.beacon_interval));
1036 priv->rxon_timing.atim_window = 0;
1038 priv->rxon_timing.beacon_interval =
1039 iwl4965_adjust_beacon_interval(conf->beacon_int);
1040 /* TODO: we need to get atim_window from upper stack
1041 * for now we set to 0 */
1042 priv->rxon_timing.atim_window = 0;
1046 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
1047 result = do_div(tsf, interval_tm_unit);
1048 priv->rxon_timing.beacon_init_val =
1049 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
1052 ("beacon interval %d beacon timer %d beacon tim %d\n",
1053 le16_to_cpu(priv->rxon_timing.beacon_interval),
1054 le32_to_cpu(priv->rxon_timing.beacon_init_val),
1055 le16_to_cpu(priv->rxon_timing.atim_window));
1058 static int iwl4965_scan_initiate(struct iwl_priv *priv)
1060 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
1061 IWL_ERROR("APs don't scan.\n");
1065 if (!iwl_is_ready_rf(priv)) {
1066 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1070 if (test_bit(STATUS_SCANNING, &priv->status)) {
1071 IWL_DEBUG_SCAN("Scan already in progress.\n");
1075 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1076 IWL_DEBUG_SCAN("Scan request while abort pending. "
1081 IWL_DEBUG_INFO("Starting scan...\n");
1082 priv->scan_bands = 2;
1083 set_bit(STATUS_SCANNING, &priv->status);
1084 priv->scan_start = jiffies;
1085 priv->scan_pass_start = priv->scan_start;
1087 queue_work(priv->workqueue, &priv->request_scan);
1093 static void iwl4965_set_flags_for_phymode(struct iwl_priv *priv,
1094 enum ieee80211_band band)
1096 if (band == IEEE80211_BAND_5GHZ) {
1097 priv->staging_rxon.flags &=
1098 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1099 | RXON_FLG_CCK_MSK);
1100 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1102 /* Copied from iwl4965_post_associate() */
1103 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1104 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1106 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1108 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
1109 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1111 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1112 priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1113 priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
1118 * initialize rxon structure with default values from eeprom
1120 static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
1122 const struct iwl_channel_info *ch_info;
1124 memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
1126 switch (priv->iw_mode) {
1127 case IEEE80211_IF_TYPE_AP:
1128 priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
1131 case IEEE80211_IF_TYPE_STA:
1132 priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
1133 priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1136 case IEEE80211_IF_TYPE_IBSS:
1137 priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1138 priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1139 priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1140 RXON_FILTER_ACCEPT_GRP_MSK;
1143 case IEEE80211_IF_TYPE_MNTR:
1144 priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
1145 priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
1146 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
1149 IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode);
1154 /* TODO: Figure out when short_preamble would be set and cache from
1156 if (!hw_to_local(priv->hw)->short_preamble)
1157 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1159 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1162 ch_info = iwl_get_channel_info(priv, priv->band,
1163 le16_to_cpu(priv->staging_rxon.channel));
1166 ch_info = &priv->channel_info[0];
1169 * in some case A channels are all non IBSS
1170 * in this case force B/G channel
1172 if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
1173 !(is_channel_ibss(ch_info)))
1174 ch_info = &priv->channel_info[0];
1176 priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
1177 priv->band = ch_info->band;
1179 iwl4965_set_flags_for_phymode(priv, priv->band);
1181 priv->staging_rxon.ofdm_basic_rates =
1182 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1183 priv->staging_rxon.cck_basic_rates =
1184 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1186 priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
1187 RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
1188 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1189 memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
1190 priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
1191 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
1192 iwl_set_rxon_chain(priv);
1195 static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
1197 if (mode == IEEE80211_IF_TYPE_IBSS) {
1198 const struct iwl_channel_info *ch_info;
1200 ch_info = iwl_get_channel_info(priv,
1202 le16_to_cpu(priv->staging_rxon.channel));
1204 if (!ch_info || !is_channel_ibss(ch_info)) {
1205 IWL_ERROR("channel %d not IBSS channel\n",
1206 le16_to_cpu(priv->staging_rxon.channel));
1211 priv->iw_mode = mode;
1213 iwl4965_connection_init_rx_config(priv);
1214 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1216 iwlcore_clear_stations_table(priv);
1218 /* dont commit rxon if rf-kill is on*/
1219 if (!iwl_is_ready_rf(priv))
1222 cancel_delayed_work(&priv->scan_check);
1223 if (iwl4965_scan_cancel_timeout(priv, 100)) {
1224 IWL_WARNING("Aborted scan still in progress after 100ms\n");
1225 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1229 iwl4965_commit_rxon(priv);
1234 static void iwl4965_set_rate(struct iwl_priv *priv)
1236 const struct ieee80211_supported_band *hw = NULL;
1237 struct ieee80211_rate *rate;
1240 hw = iwl_get_hw_mode(priv, priv->band);
1242 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
1246 priv->active_rate = 0;
1247 priv->active_rate_basic = 0;
1249 for (i = 0; i < hw->n_bitrates; i++) {
1250 rate = &(hw->bitrates[i]);
1251 if (rate->hw_value < IWL_RATE_COUNT)
1252 priv->active_rate |= (1 << rate->hw_value);
1255 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
1256 priv->active_rate, priv->active_rate_basic);
1259 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1260 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1263 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
1264 priv->staging_rxon.cck_basic_rates =
1265 ((priv->active_rate_basic &
1266 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
1268 priv->staging_rxon.cck_basic_rates =
1269 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1271 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
1272 priv->staging_rxon.ofdm_basic_rates =
1273 ((priv->active_rate_basic &
1274 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
1275 IWL_FIRST_OFDM_RATE) & 0xFF;
1277 priv->staging_rxon.ofdm_basic_rates =
1278 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1281 void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
1283 unsigned long flags;
1285 if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
1288 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
1289 disable_radio ? "OFF" : "ON");
1291 if (disable_radio) {
1292 iwl4965_scan_cancel(priv);
1293 /* FIXME: This is a workaround for AP */
1294 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
1295 spin_lock_irqsave(&priv->lock, flags);
1296 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1297 CSR_UCODE_SW_BIT_RFKILL);
1298 spin_unlock_irqrestore(&priv->lock, flags);
1299 /* call the host command only if no hw rf-kill set */
1300 if (!test_bit(STATUS_RF_KILL_HW, &priv->status) &&
1302 iwl4965_send_card_state(priv,
1303 CARD_STATE_CMD_DISABLE,
1305 set_bit(STATUS_RF_KILL_SW, &priv->status);
1307 /* make sure mac80211 stop sending Tx frame */
1308 if (priv->mac80211_registered)
1309 ieee80211_stop_queues(priv->hw);
1314 spin_lock_irqsave(&priv->lock, flags);
1315 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
1317 clear_bit(STATUS_RF_KILL_SW, &priv->status);
1318 spin_unlock_irqrestore(&priv->lock, flags);
1323 spin_lock_irqsave(&priv->lock, flags);
1324 iwl_read32(priv, CSR_UCODE_DRV_GP1);
1325 if (!iwl_grab_nic_access(priv))
1326 iwl_release_nic_access(priv);
1327 spin_unlock_irqrestore(&priv->lock, flags);
1329 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
1330 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
1331 "disabled by HW switch\n");
1335 queue_work(priv->workqueue, &priv->restart);
1339 #define IWL_PACKET_RETRY_TIME HZ
1341 int iwl4965_is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
1343 u16 sc = le16_to_cpu(header->seq_ctrl);
1344 u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
1345 u16 frag = sc & IEEE80211_SCTL_FRAG;
1346 u16 *last_seq, *last_frag;
1347 unsigned long *last_time;
1349 switch (priv->iw_mode) {
1350 case IEEE80211_IF_TYPE_IBSS:{
1351 struct list_head *p;
1352 struct iwl4965_ibss_seq *entry = NULL;
1353 u8 *mac = header->addr2;
1354 int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1);
1356 __list_for_each(p, &priv->ibss_mac_hash[index]) {
1357 entry = list_entry(p, struct iwl4965_ibss_seq, list);
1358 if (!compare_ether_addr(entry->mac, mac))
1361 if (p == &priv->ibss_mac_hash[index]) {
1362 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1364 IWL_ERROR("Cannot malloc new mac entry\n");
1367 memcpy(entry->mac, mac, ETH_ALEN);
1368 entry->seq_num = seq;
1369 entry->frag_num = frag;
1370 entry->packet_time = jiffies;
1371 list_add(&entry->list, &priv->ibss_mac_hash[index]);
1374 last_seq = &entry->seq_num;
1375 last_frag = &entry->frag_num;
1376 last_time = &entry->packet_time;
1379 case IEEE80211_IF_TYPE_STA:
1380 last_seq = &priv->last_seq_num;
1381 last_frag = &priv->last_frag_num;
1382 last_time = &priv->last_packet_time;
1387 if ((*last_seq == seq) &&
1388 time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) {
1389 if (*last_frag == frag)
1391 if (*last_frag + 1 != frag)
1392 /* out-of-order fragment */
1398 *last_time = jiffies;
1405 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1407 #include "iwl-spectrum.h"
1409 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
1410 #define BEACON_TIME_MASK_HIGH 0xFF000000
1411 #define TIME_UNIT 1024
1414 * extended beacon time format
1415 * time in usec will be changed into a 32-bit value in 8:24 format
1416 * the high 1 byte is the beacon counts
1417 * the lower 3 bytes is the time in usec within one beacon interval
1420 static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
1424 u32 interval = beacon_interval * 1024;
1426 if (!interval || !usec)
1429 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
1430 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
1432 return (quot << 24) + rem;
1435 /* base is usually what we get from ucode with each received frame,
1436 * the same as HW timer counter counting down
1439 static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
1441 u32 base_low = base & BEACON_TIME_MASK_LOW;
1442 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
1443 u32 interval = beacon_interval * TIME_UNIT;
1444 u32 res = (base & BEACON_TIME_MASK_HIGH) +
1445 (addon & BEACON_TIME_MASK_HIGH);
1447 if (base_low > addon_low)
1448 res += base_low - addon_low;
1449 else if (base_low < addon_low) {
1450 res += interval + base_low - addon_low;
1455 return cpu_to_le32(res);
1458 static int iwl4965_get_measurement(struct iwl_priv *priv,
1459 struct ieee80211_measurement_params *params,
1462 struct iwl4965_spectrum_cmd spectrum;
1463 struct iwl_rx_packet *res;
1464 struct iwl_host_cmd cmd = {
1465 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
1466 .data = (void *)&spectrum,
1467 .meta.flags = CMD_WANT_SKB,
1469 u32 add_time = le64_to_cpu(params->start_time);
1471 int spectrum_resp_status;
1472 int duration = le16_to_cpu(params->duration);
1474 if (iwl_is_associated(priv))
1476 iwl4965_usecs_to_beacons(
1477 le64_to_cpu(params->start_time) - priv->last_tsf,
1478 le16_to_cpu(priv->rxon_timing.beacon_interval));
1480 memset(&spectrum, 0, sizeof(spectrum));
1482 spectrum.channel_count = cpu_to_le16(1);
1484 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
1485 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
1486 cmd.len = sizeof(spectrum);
1487 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
1489 if (iwl_is_associated(priv))
1490 spectrum.start_time =
1491 iwl4965_add_beacon_time(priv->last_beacon_time,
1493 le16_to_cpu(priv->rxon_timing.beacon_interval));
1495 spectrum.start_time = 0;
1497 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
1498 spectrum.channels[0].channel = params->channel;
1499 spectrum.channels[0].type = type;
1500 if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
1501 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
1502 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
1504 rc = iwl_send_cmd_sync(priv, &cmd);
1508 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
1509 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1510 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
1514 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
1515 switch (spectrum_resp_status) {
1516 case 0: /* Command will be handled */
1517 if (res->u.spectrum.id != 0xff) {
1519 ("Replaced existing measurement: %d\n",
1520 res->u.spectrum.id);
1521 priv->measurement_status &= ~MEASUREMENT_READY;
1523 priv->measurement_status |= MEASUREMENT_ACTIVE;
1527 case 1: /* Command will not be handled */
1532 dev_kfree_skb_any(cmd.meta.u.skb);
1538 static void iwl4965_txstatus_to_ieee(struct iwl_priv *priv,
1539 struct iwl_tx_info *tx_sta)
1541 ieee80211_tx_status_irqsafe(priv->hw, tx_sta->skb[0]);
1542 tx_sta->skb[0] = NULL;
1546 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
1548 * When FW advances 'R' index, all entries between old and new 'R' index
1549 * need to be reclaimed. As result, some free space forms. If there is
1550 * enough free space (> low mark), wake the stack that feeds us.
1552 int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
1554 struct iwl_tx_queue *txq = &priv->txq[txq_id];
1555 struct iwl_queue *q = &txq->q;
1558 if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
1559 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
1560 "is out of range [0-%d] %d %d.\n", txq_id,
1561 index, q->n_bd, q->write_ptr, q->read_ptr);
1565 for (index = iwl_queue_inc_wrap(index, q->n_bd);
1566 q->read_ptr != index;
1567 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
1568 if (txq_id != IWL_CMD_QUEUE_NUM) {
1569 iwl4965_txstatus_to_ieee(priv,
1570 &(txq->txb[txq->q.read_ptr]));
1571 iwl_hw_txq_free_tfd(priv, txq);
1572 } else if (nfreed > 1) {
1573 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
1574 q->write_ptr, q->read_ptr);
1575 queue_work(priv->workqueue, &priv->restart);
1583 /******************************************************************************
1585 * Generic RX handler implementations
1587 ******************************************************************************/
1588 static void iwl_rx_reply_alive(struct iwl_priv *priv,
1589 struct iwl_rx_mem_buffer *rxb)
1591 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1592 struct iwl_alive_resp *palive;
1593 struct delayed_work *pwork;
1595 palive = &pkt->u.alive_frame;
1597 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
1599 palive->is_valid, palive->ver_type,
1600 palive->ver_subtype);
1602 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
1603 IWL_DEBUG_INFO("Initialization Alive received.\n");
1604 memcpy(&priv->card_alive_init,
1605 &pkt->u.alive_frame,
1606 sizeof(struct iwl_init_alive_resp));
1607 pwork = &priv->init_alive_start;
1609 IWL_DEBUG_INFO("Runtime Alive received.\n");
1610 memcpy(&priv->card_alive, &pkt->u.alive_frame,
1611 sizeof(struct iwl_alive_resp));
1612 pwork = &priv->alive_start;
1615 /* We delay the ALIVE response by 5ms to
1616 * give the HW RF Kill time to activate... */
1617 if (palive->is_valid == UCODE_VALID_OK)
1618 queue_delayed_work(priv->workqueue, pwork,
1619 msecs_to_jiffies(5));
1621 IWL_WARNING("uCode did not respond OK.\n");
1624 static void iwl4965_rx_reply_error(struct iwl_priv *priv,
1625 struct iwl_rx_mem_buffer *rxb)
1627 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1629 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
1630 "seq 0x%04X ser 0x%08X\n",
1631 le32_to_cpu(pkt->u.err_resp.error_type),
1632 get_cmd_string(pkt->u.err_resp.cmd_id),
1633 pkt->u.err_resp.cmd_id,
1634 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
1635 le32_to_cpu(pkt->u.err_resp.error_info));
1638 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1640 static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
1642 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1643 struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
1644 struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
1645 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
1646 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
1647 rxon->channel = csa->channel;
1648 priv->staging_rxon.channel = csa->channel;
1651 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv,
1652 struct iwl_rx_mem_buffer *rxb)
1654 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1655 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1656 struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
1658 if (!report->state) {
1659 IWL_DEBUG(IWL_DL_11H,
1660 "Spectrum Measure Notification: Start\n");
1664 memcpy(&priv->measure_report, report, sizeof(*report));
1665 priv->measurement_status |= MEASUREMENT_READY;
1669 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv,
1670 struct iwl_rx_mem_buffer *rxb)
1672 #ifdef CONFIG_IWLWIFI_DEBUG
1673 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1674 struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
1675 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
1676 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
1680 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
1681 struct iwl_rx_mem_buffer *rxb)
1683 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1684 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
1685 "notification for %s:\n",
1686 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
1687 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
1690 static void iwl4965_bg_beacon_update(struct work_struct *work)
1692 struct iwl_priv *priv =
1693 container_of(work, struct iwl_priv, beacon_update);
1694 struct sk_buff *beacon;
1696 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
1697 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
1700 IWL_ERROR("update beacon failed\n");
1704 mutex_lock(&priv->mutex);
1705 /* new beacon skb is allocated every time; dispose previous.*/
1706 if (priv->ibss_beacon)
1707 dev_kfree_skb(priv->ibss_beacon);
1709 priv->ibss_beacon = beacon;
1710 mutex_unlock(&priv->mutex);
1712 iwl4965_send_beacon_cmd(priv);
1715 static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
1716 struct iwl_rx_mem_buffer *rxb)
1718 #ifdef CONFIG_IWLWIFI_DEBUG
1719 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1720 struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
1721 u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
1723 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
1724 "tsf %d %d rate %d\n",
1725 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
1726 beacon->beacon_notify_hdr.failure_frame,
1727 le32_to_cpu(beacon->ibss_mgr_status),
1728 le32_to_cpu(beacon->high_tsf),
1729 le32_to_cpu(beacon->low_tsf), rate);
1732 if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
1733 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
1734 queue_work(priv->workqueue, &priv->beacon_update);
1737 /* Service response to REPLY_SCAN_CMD (0x80) */
1738 static void iwl4965_rx_reply_scan(struct iwl_priv *priv,
1739 struct iwl_rx_mem_buffer *rxb)
1741 #ifdef CONFIG_IWLWIFI_DEBUG
1742 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1743 struct iwl4965_scanreq_notification *notif =
1744 (struct iwl4965_scanreq_notification *)pkt->u.raw;
1746 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
1750 /* Service SCAN_START_NOTIFICATION (0x82) */
1751 static void iwl4965_rx_scan_start_notif(struct iwl_priv *priv,
1752 struct iwl_rx_mem_buffer *rxb)
1754 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1755 struct iwl4965_scanstart_notification *notif =
1756 (struct iwl4965_scanstart_notification *)pkt->u.raw;
1757 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
1758 IWL_DEBUG_SCAN("Scan start: "
1760 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
1762 notif->band ? "bg" : "a",
1764 notif->tsf_low, notif->status, notif->beacon_timer);
1767 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
1768 static void iwl4965_rx_scan_results_notif(struct iwl_priv *priv,
1769 struct iwl_rx_mem_buffer *rxb)
1771 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1772 struct iwl4965_scanresults_notification *notif =
1773 (struct iwl4965_scanresults_notification *)pkt->u.raw;
1775 IWL_DEBUG_SCAN("Scan ch.res: "
1777 "(TSF: 0x%08X:%08X) - %d "
1778 "elapsed=%lu usec (%dms since last)\n",
1780 notif->band ? "bg" : "a",
1781 le32_to_cpu(notif->tsf_high),
1782 le32_to_cpu(notif->tsf_low),
1783 le32_to_cpu(notif->statistics[0]),
1784 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
1785 jiffies_to_msecs(elapsed_jiffies
1786 (priv->last_scan_jiffies, jiffies)));
1788 priv->last_scan_jiffies = jiffies;
1789 priv->next_scan_jiffies = 0;
1792 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
1793 static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv,
1794 struct iwl_rx_mem_buffer *rxb)
1796 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1797 struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
1799 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
1800 scan_notif->scanned_channels,
1801 scan_notif->tsf_low,
1802 scan_notif->tsf_high, scan_notif->status);
1804 /* The HW is no longer scanning */
1805 clear_bit(STATUS_SCAN_HW, &priv->status);
1807 /* The scan completion notification came in, so kill that timer... */
1808 cancel_delayed_work(&priv->scan_check);
1810 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
1811 (priv->scan_bands == 2) ? "2.4" : "5.2",
1812 jiffies_to_msecs(elapsed_jiffies
1813 (priv->scan_pass_start, jiffies)));
1815 /* Remove this scanned band from the list
1816 * of pending bands to scan */
1819 /* If a request to abort was given, or the scan did not succeed
1820 * then we reset the scan state machine and terminate,
1821 * re-queuing another scan if one has been requested */
1822 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1823 IWL_DEBUG_INFO("Aborted scan completed.\n");
1824 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1826 /* If there are more bands on this scan pass reschedule */
1827 if (priv->scan_bands > 0)
1831 priv->last_scan_jiffies = jiffies;
1832 priv->next_scan_jiffies = 0;
1833 IWL_DEBUG_INFO("Setting scan to off\n");
1835 clear_bit(STATUS_SCANNING, &priv->status);
1837 IWL_DEBUG_INFO("Scan took %dms\n",
1838 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
1840 queue_work(priv->workqueue, &priv->scan_completed);
1845 priv->scan_pass_start = jiffies;
1846 queue_work(priv->workqueue, &priv->request_scan);
1849 /* Handle notification from uCode that card's power state is changing
1850 * due to software, hardware, or critical temperature RFKILL */
1851 static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
1852 struct iwl_rx_mem_buffer *rxb)
1854 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1855 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
1856 unsigned long status = priv->status;
1858 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
1859 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
1860 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
1862 if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
1863 RF_CARD_DISABLED)) {
1865 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1866 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1868 if (!iwl_grab_nic_access(priv)) {
1870 priv, HBUS_TARG_MBX_C,
1871 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
1873 iwl_release_nic_access(priv);
1876 if (!(flags & RXON_CARD_DISABLED)) {
1877 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
1878 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1879 if (!iwl_grab_nic_access(priv)) {
1881 priv, HBUS_TARG_MBX_C,
1882 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
1884 iwl_release_nic_access(priv);
1888 if (flags & RF_CARD_DISABLED) {
1889 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1890 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
1891 iwl_read32(priv, CSR_UCODE_DRV_GP1);
1892 if (!iwl_grab_nic_access(priv))
1893 iwl_release_nic_access(priv);
1897 if (flags & HW_CARD_DISABLED)
1898 set_bit(STATUS_RF_KILL_HW, &priv->status);
1900 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1903 if (flags & SW_CARD_DISABLED)
1904 set_bit(STATUS_RF_KILL_SW, &priv->status);
1906 clear_bit(STATUS_RF_KILL_SW, &priv->status);
1908 if (!(flags & RXON_CARD_DISABLED))
1909 iwl4965_scan_cancel(priv);
1911 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
1912 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
1913 (test_bit(STATUS_RF_KILL_SW, &status) !=
1914 test_bit(STATUS_RF_KILL_SW, &priv->status)))
1915 queue_work(priv->workqueue, &priv->rf_kill);
1917 wake_up_interruptible(&priv->wait_command_queue);
1921 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
1923 * Setup the RX handlers for each of the reply types sent from the uCode
1926 * This function chains into the hardware specific files for them to setup
1927 * any hardware specific handlers as well.
1929 static void iwl4965_setup_rx_handlers(struct iwl_priv *priv)
1931 priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
1932 priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
1933 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
1934 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
1935 iwl4965_rx_spectrum_measure_notif;
1936 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
1937 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
1938 iwl4965_rx_pm_debug_statistics_notif;
1939 priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
1942 * The same handler is used for both the REPLY to a discrete
1943 * statistics request from the host as well as for the periodic
1944 * statistics notifications (after received beacons) from the uCode.
1946 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics;
1947 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics;
1949 priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan;
1950 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif;
1951 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
1952 iwl4965_rx_scan_results_notif;
1953 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
1954 iwl4965_rx_scan_complete_notif;
1955 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
1957 priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
1958 iwl_rx_missed_beacon_notif;
1960 /* Set up hardware specific Rx handlers */
1961 priv->cfg->ops->lib->rx_handler_setup(priv);
1965 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
1966 * @rxb: Rx buffer to reclaim
1968 * If an Rx buffer has an async callback associated with it the callback
1969 * will be executed. The attached skb (if present) will only be freed
1970 * if the callback returns 1
1972 static void iwl4965_tx_cmd_complete(struct iwl_priv *priv,
1973 struct iwl_rx_mem_buffer *rxb)
1975 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1976 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1977 int txq_id = SEQ_TO_QUEUE(sequence);
1978 int index = SEQ_TO_INDEX(sequence);
1979 int huge = sequence & SEQ_HUGE_FRAME;
1981 struct iwl_cmd *cmd;
1983 /* If a Tx command is being handled and it isn't in the actual
1984 * command queue then there a command routing bug has been introduced
1985 * in the queue management code. */
1986 if (txq_id != IWL_CMD_QUEUE_NUM)
1987 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
1988 txq_id, pkt->hdr.cmd);
1989 BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
1991 cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
1992 cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
1994 /* Input error checking is done when commands are added to queue. */
1995 if (cmd->meta.flags & CMD_WANT_SKB) {
1996 cmd->meta.source->u.skb = rxb->skb;
1998 } else if (cmd->meta.u.callback &&
1999 !cmd->meta.u.callback(priv, cmd, rxb->skb))
2002 iwl4965_tx_queue_reclaim(priv, txq_id, index);
2004 if (!(cmd->meta.flags & CMD_ASYNC)) {
2005 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
2006 wake_up_interruptible(&priv->wait_command_queue);
2011 * this should be called while priv->lock is locked
2013 static void __iwl_rx_replenish(struct iwl_priv *priv)
2015 iwl_rx_allocate(priv);
2016 iwl_rx_queue_restock(priv);
2021 * iwl_rx_handle - Main entry function for receiving responses from uCode
2023 * Uses the priv->rx_handlers callback function array to invoke
2024 * the appropriate handlers, including command responses,
2025 * frame-received notifications, and other notifications.
2027 void iwl_rx_handle(struct iwl_priv *priv)
2029 struct iwl_rx_mem_buffer *rxb;
2030 struct iwl_rx_packet *pkt;
2031 struct iwl_rx_queue *rxq = &priv->rxq;
2034 unsigned long flags;
2038 /* uCode's read index (stored in shared DRAM) indicates the last Rx
2039 * buffer that the driver may process (last buffer filled by ucode). */
2040 r = priv->cfg->ops->lib->shared_mem_rx_idx(priv);
2043 /* Rx interrupt, but nothing sent from uCode */
2045 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i);
2047 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
2051 rxb = rxq->queue[i];
2053 /* If an RXB doesn't have a Rx queue slot associated with it,
2054 * then a bug has been introduced in the queue refilling
2055 * routines -- catch it here */
2056 BUG_ON(rxb == NULL);
2058 rxq->queue[i] = NULL;
2060 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
2061 priv->hw_params.rx_buf_size,
2062 PCI_DMA_FROMDEVICE);
2063 pkt = (struct iwl_rx_packet *)rxb->skb->data;
2065 /* Reclaim a command buffer only if this packet is a response
2066 * to a (driver-originated) command.
2067 * If the packet (e.g. Rx frame) originated from uCode,
2068 * there is no command buffer to reclaim.
2069 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
2070 * but apparently a few don't get set; catch them here. */
2071 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
2072 (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
2073 (pkt->hdr.cmd != REPLY_RX) &&
2074 (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
2075 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
2076 (pkt->hdr.cmd != REPLY_TX);
2078 /* Based on type of command response or notification,
2079 * handle those that need handling via function in
2080 * rx_handlers table. See iwl4965_setup_rx_handlers() */
2081 if (priv->rx_handlers[pkt->hdr.cmd]) {
2082 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r,
2083 i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
2084 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
2086 /* No handling needed */
2087 IWL_DEBUG(IWL_DL_RX,
2088 "r %d i %d No handler needed for %s, 0x%02x\n",
2089 r, i, get_cmd_string(pkt->hdr.cmd),
2094 /* Invoke any callbacks, transfer the skb to caller, and
2095 * fire off the (possibly) blocking iwl_send_cmd()
2096 * as we reclaim the driver command queue */
2097 if (rxb && rxb->skb)
2098 iwl4965_tx_cmd_complete(priv, rxb);
2100 IWL_WARNING("Claim null rxb?\n");
2103 /* For now we just don't re-use anything. We can tweak this
2104 * later to try and re-use notification packets and SKBs that
2105 * fail to Rx correctly */
2106 if (rxb->skb != NULL) {
2107 priv->alloc_rxb_skb--;
2108 dev_kfree_skb_any(rxb->skb);
2112 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
2113 priv->hw_params.rx_buf_size,
2114 PCI_DMA_FROMDEVICE);
2115 spin_lock_irqsave(&rxq->lock, flags);
2116 list_add_tail(&rxb->list, &priv->rxq.rx_used);
2117 spin_unlock_irqrestore(&rxq->lock, flags);
2118 i = (i + 1) & RX_QUEUE_MASK;
2119 /* If there are a lot of unused frames,
2120 * restock the Rx queue so ucode wont assert. */
2125 __iwl_rx_replenish(priv);
2131 /* Backtrack one entry */
2133 iwl_rx_queue_restock(priv);
2135 /* Convert linear signal-to-noise ratio into dB */
2136 static u8 ratio2dB[100] = {
2137 /* 0 1 2 3 4 5 6 7 8 9 */
2138 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
2139 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
2140 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
2141 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
2142 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
2143 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
2144 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
2145 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
2146 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
2147 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
2150 /* Calculates a relative dB value from a ratio of linear
2151 * (i.e. not dB) signal levels.
2152 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
2153 int iwl4965_calc_db_from_ratio(int sig_ratio)
2155 /* 1000:1 or higher just report as 60 dB */
2156 if (sig_ratio >= 1000)
2159 /* 100:1 or higher, divide by 10 and use table,
2160 * add 20 dB to make up for divide by 10 */
2161 if (sig_ratio >= 100)
2162 return (20 + (int)ratio2dB[sig_ratio/10]);
2164 /* We shouldn't see this */
2168 /* Use table for ratios 1:1 - 99:1 */
2169 return (int)ratio2dB[sig_ratio];
2172 #define PERFECT_RSSI (-20) /* dBm */
2173 #define WORST_RSSI (-95) /* dBm */
2174 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
2176 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
2177 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
2178 * about formulas used below. */
2179 int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm)
2182 int degradation = PERFECT_RSSI - rssi_dbm;
2184 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
2185 * as indicator; formula is (signal dbm - noise dbm).
2186 * SNR at or above 40 is a great signal (100%).
2187 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
2188 * Weakest usable signal is usually 10 - 15 dB SNR. */
2190 if (rssi_dbm - noise_dbm >= 40)
2192 else if (rssi_dbm < noise_dbm)
2194 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
2196 /* Else use just the signal level.
2197 * This formula is a least squares fit of data points collected and
2198 * compared with a reference system that had a percentage (%) display
2199 * for signal quality. */
2201 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
2202 (15 * RSSI_RANGE + 62 * degradation)) /
2203 (RSSI_RANGE * RSSI_RANGE);
2207 else if (sig_qual < 1)
2213 #ifdef CONFIG_IWLWIFI_DEBUG
2214 static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
2216 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
2217 DECLARE_MAC_BUF(mac);
2219 IWL_DEBUG_RADIO("RX CONFIG:\n");
2220 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
2221 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
2222 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
2223 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
2224 le32_to_cpu(rxon->filter_flags));
2225 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
2226 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
2227 rxon->ofdm_basic_rates);
2228 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
2229 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
2230 print_mac(mac, rxon->node_addr));
2231 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
2232 print_mac(mac, rxon->bssid_addr));
2233 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
2237 static void iwl4965_enable_interrupts(struct iwl_priv *priv)
2239 IWL_DEBUG_ISR("Enabling interrupts\n");
2240 set_bit(STATUS_INT_ENABLED, &priv->status);
2241 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
2244 /* call this function to flush any scheduled tasklet */
2245 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
2247 /* wait to make sure we flush pedding tasklet*/
2248 synchronize_irq(priv->pci_dev->irq);
2249 tasklet_kill(&priv->irq_tasklet);
2252 static inline void iwl4965_disable_interrupts(struct iwl_priv *priv)
2254 clear_bit(STATUS_INT_ENABLED, &priv->status);
2256 /* disable interrupts from uCode/NIC to host */
2257 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
2259 /* acknowledge/clear/reset any interrupts still pending
2260 * from uCode or flow handler (Rx/Tx DMA) */
2261 iwl_write32(priv, CSR_INT, 0xffffffff);
2262 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
2263 IWL_DEBUG_ISR("Disabled interrupts\n");
2268 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
2270 static void iwl4965_irq_handle_error(struct iwl_priv *priv)
2272 /* Set the FW error flag -- cleared on iwl4965_down */
2273 set_bit(STATUS_FW_ERROR, &priv->status);
2275 /* Cancel currently queued command. */
2276 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
2278 #ifdef CONFIG_IWLWIFI_DEBUG
2279 if (priv->debug_level & IWL_DL_FW_ERRORS) {
2280 iwl_dump_nic_error_log(priv);
2281 iwl_dump_nic_event_log(priv);
2282 iwl4965_print_rx_config_cmd(priv);
2286 wake_up_interruptible(&priv->wait_command_queue);
2288 /* Keep the restart process from trying to send host
2289 * commands by clearing the INIT status bit */
2290 clear_bit(STATUS_READY, &priv->status);
2292 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2293 IWL_DEBUG(IWL_DL_FW_ERRORS,
2294 "Restarting adapter due to uCode error.\n");
2296 if (iwl_is_associated(priv)) {
2297 memcpy(&priv->recovery_rxon, &priv->active_rxon,
2298 sizeof(priv->recovery_rxon));
2299 priv->error_recovering = 1;
2301 if (priv->cfg->mod_params->restart_fw)
2302 queue_work(priv->workqueue, &priv->restart);
2306 static void iwl4965_error_recovery(struct iwl_priv *priv)
2308 unsigned long flags;
2310 memcpy(&priv->staging_rxon, &priv->recovery_rxon,
2311 sizeof(priv->staging_rxon));
2312 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2313 iwl4965_commit_rxon(priv);
2315 iwl_rxon_add_station(priv, priv->bssid, 1);
2317 spin_lock_irqsave(&priv->lock, flags);
2318 priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
2319 priv->error_recovering = 0;
2320 spin_unlock_irqrestore(&priv->lock, flags);
2323 static void iwl4965_irq_tasklet(struct iwl_priv *priv)
2325 u32 inta, handled = 0;
2327 unsigned long flags;
2328 #ifdef CONFIG_IWLWIFI_DEBUG
2332 spin_lock_irqsave(&priv->lock, flags);
2334 /* Ack/clear/reset pending uCode interrupts.
2335 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
2336 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
2337 inta = iwl_read32(priv, CSR_INT);
2338 iwl_write32(priv, CSR_INT, inta);
2340 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
2341 * Any new interrupts that happen after this, either while we're
2342 * in this tasklet, or later, will show up in next ISR/tasklet. */
2343 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
2344 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
2346 #ifdef CONFIG_IWLWIFI_DEBUG
2347 if (priv->debug_level & IWL_DL_ISR) {
2348 /* just for debug */
2349 inta_mask = iwl_read32(priv, CSR_INT_MASK);
2350 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2351 inta, inta_mask, inta_fh);
2355 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
2356 * atomic, make sure that inta covers all the interrupts that
2357 * we've discovered, even if FH interrupt came in just after
2358 * reading CSR_INT. */
2359 if (inta_fh & CSR49_FH_INT_RX_MASK)
2360 inta |= CSR_INT_BIT_FH_RX;
2361 if (inta_fh & CSR49_FH_INT_TX_MASK)
2362 inta |= CSR_INT_BIT_FH_TX;
2364 /* Now service all interrupt bits discovered above. */
2365 if (inta & CSR_INT_BIT_HW_ERR) {
2366 IWL_ERROR("Microcode HW error detected. Restarting.\n");
2368 /* Tell the device to stop sending interrupts */
2369 iwl4965_disable_interrupts(priv);
2371 iwl4965_irq_handle_error(priv);
2373 handled |= CSR_INT_BIT_HW_ERR;
2375 spin_unlock_irqrestore(&priv->lock, flags);
2380 #ifdef CONFIG_IWLWIFI_DEBUG
2381 if (priv->debug_level & (IWL_DL_ISR)) {
2382 /* NIC fires this, but we don't use it, redundant with WAKEUP */
2383 if (inta & CSR_INT_BIT_SCD)
2384 IWL_DEBUG_ISR("Scheduler finished to transmit "
2385 "the frame/frames.\n");
2387 /* Alive notification via Rx interrupt will do the real work */
2388 if (inta & CSR_INT_BIT_ALIVE)
2389 IWL_DEBUG_ISR("Alive interrupt\n");
2392 /* Safely ignore these bits for debug checks below */
2393 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
2395 /* HW RF KILL switch toggled */
2396 if (inta & CSR_INT_BIT_RF_KILL) {
2398 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
2399 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
2402 IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n",
2403 hw_rf_kill ? "disable radio":"enable radio");
2405 /* Queue restart only if RF_KILL switch was set to "kill"
2406 * when we loaded driver, and is now set to "enable".
2407 * After we're Alive, RF_KILL gets handled by
2408 * iwl4965_rx_card_state_notif() */
2409 if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) {
2410 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2411 queue_work(priv->workqueue, &priv->restart);
2414 handled |= CSR_INT_BIT_RF_KILL;
2417 /* Chip got too hot and stopped itself */
2418 if (inta & CSR_INT_BIT_CT_KILL) {
2419 IWL_ERROR("Microcode CT kill error detected.\n");
2420 handled |= CSR_INT_BIT_CT_KILL;
2423 /* Error detected by uCode */
2424 if (inta & CSR_INT_BIT_SW_ERR) {
2425 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
2427 iwl4965_irq_handle_error(priv);
2428 handled |= CSR_INT_BIT_SW_ERR;
2431 /* uCode wakes up after power-down sleep */
2432 if (inta & CSR_INT_BIT_WAKEUP) {
2433 IWL_DEBUG_ISR("Wakeup interrupt\n");
2434 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
2435 iwl_txq_update_write_ptr(priv, &priv->txq[0]);
2436 iwl_txq_update_write_ptr(priv, &priv->txq[1]);
2437 iwl_txq_update_write_ptr(priv, &priv->txq[2]);
2438 iwl_txq_update_write_ptr(priv, &priv->txq[3]);
2439 iwl_txq_update_write_ptr(priv, &priv->txq[4]);
2440 iwl_txq_update_write_ptr(priv, &priv->txq[5]);
2442 handled |= CSR_INT_BIT_WAKEUP;
2445 /* All uCode command responses, including Tx command responses,
2446 * Rx "responses" (frame-received notification), and other
2447 * notifications from uCode come through here*/
2448 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
2449 iwl_rx_handle(priv);
2450 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
2453 if (inta & CSR_INT_BIT_FH_TX) {
2454 IWL_DEBUG_ISR("Tx interrupt\n");
2455 handled |= CSR_INT_BIT_FH_TX;
2456 /* FH finished to write, send event */
2457 priv->ucode_write_complete = 1;
2458 wake_up_interruptible(&priv->wait_command_queue);
2461 if (inta & ~handled)
2462 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
2464 if (inta & ~CSR_INI_SET_MASK) {
2465 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
2466 inta & ~CSR_INI_SET_MASK);
2467 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
2470 /* Re-enable all interrupts */
2471 /* only Re-enable if diabled by irq */
2472 if (test_bit(STATUS_INT_ENABLED, &priv->status))
2473 iwl4965_enable_interrupts(priv);
2475 #ifdef CONFIG_IWLWIFI_DEBUG
2476 if (priv->debug_level & (IWL_DL_ISR)) {
2477 inta = iwl_read32(priv, CSR_INT);
2478 inta_mask = iwl_read32(priv, CSR_INT_MASK);
2479 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
2480 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
2481 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
2484 spin_unlock_irqrestore(&priv->lock, flags);
2487 static irqreturn_t iwl4965_isr(int irq, void *data)
2489 struct iwl_priv *priv = data;
2490 u32 inta, inta_mask;
2495 spin_lock(&priv->lock);
2497 /* Disable (but don't clear!) interrupts here to avoid
2498 * back-to-back ISRs and sporadic interrupts from our NIC.
2499 * If we have something to service, the tasklet will re-enable ints.
2500 * If we *don't* have something, we'll re-enable before leaving here. */
2501 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
2502 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
2504 /* Discover which interrupts are active/pending */
2505 inta = iwl_read32(priv, CSR_INT);
2506 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
2508 /* Ignore interrupt if there's nothing in NIC to service.
2509 * This may be due to IRQ shared with another device,
2510 * or due to sporadic interrupts thrown from our NIC. */
2511 if (!inta && !inta_fh) {
2512 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
2516 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
2517 /* Hardware disappeared. It might have already raised
2519 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
2523 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2524 inta, inta_mask, inta_fh);
2526 inta &= ~CSR_INT_BIT_SCD;
2528 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
2529 if (likely(inta || inta_fh))
2530 tasklet_schedule(&priv->irq_tasklet);
2533 spin_unlock(&priv->lock);
2537 /* re-enable interrupts here since we don't have anything to service. */
2538 /* only Re-enable if diabled by irq */
2539 if (test_bit(STATUS_INT_ENABLED, &priv->status))
2540 iwl4965_enable_interrupts(priv);
2541 spin_unlock(&priv->lock);
2545 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
2546 * sending probe req. This should be set long enough to hear probe responses
2547 * from more than one AP. */
2548 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
2549 #define IWL_ACTIVE_DWELL_TIME_52 (10)
2551 /* For faster active scanning, scan will move to the next channel if fewer than
2552 * PLCP_QUIET_THRESH packets are heard on this channel within
2553 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
2554 * time if it's a quiet channel (nothing responded to our probe, and there's
2555 * no other traffic).
2556 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
2557 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
2558 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
2560 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
2561 * Must be set longer than active dwell time.
2562 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
2563 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
2564 #define IWL_PASSIVE_DWELL_TIME_52 (10)
2565 #define IWL_PASSIVE_DWELL_BASE (100)
2566 #define IWL_CHANNEL_TUNE_TIME 5
2568 static inline u16 iwl4965_get_active_dwell_time(struct iwl_priv *priv,
2569 enum ieee80211_band band)
2571 if (band == IEEE80211_BAND_5GHZ)
2572 return IWL_ACTIVE_DWELL_TIME_52;
2574 return IWL_ACTIVE_DWELL_TIME_24;
2577 static u16 iwl4965_get_passive_dwell_time(struct iwl_priv *priv,
2578 enum ieee80211_band band)
2580 u16 active = iwl4965_get_active_dwell_time(priv, band);
2581 u16 passive = (band != IEEE80211_BAND_5GHZ) ?
2582 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
2583 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
2585 if (iwl_is_associated(priv)) {
2586 /* If we're associated, we clamp the maximum passive
2587 * dwell time to be 98% of the beacon interval (minus
2588 * 2 * channel tune time) */
2589 passive = priv->beacon_int;
2590 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
2591 passive = IWL_PASSIVE_DWELL_BASE;
2592 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
2595 if (passive <= active)
2596 passive = active + 1;
2601 static int iwl4965_get_channels_for_scan(struct iwl_priv *priv,
2602 enum ieee80211_band band,
2603 u8 is_active, u8 direct_mask,
2604 struct iwl4965_scan_channel *scan_ch)
2606 const struct ieee80211_channel *channels = NULL;
2607 const struct ieee80211_supported_band *sband;
2608 const struct iwl_channel_info *ch_info;
2609 u16 passive_dwell = 0;
2610 u16 active_dwell = 0;
2613 sband = iwl_get_hw_mode(priv, band);
2617 channels = sband->channels;
2619 active_dwell = iwl4965_get_active_dwell_time(priv, band);
2620 passive_dwell = iwl4965_get_passive_dwell_time(priv, band);
2622 for (i = 0, added = 0; i < sband->n_channels; i++) {
2623 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
2626 scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq);
2628 ch_info = iwl_get_channel_info(priv, band,
2630 if (!is_channel_valid(ch_info)) {
2631 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
2636 if (!is_active || is_channel_passive(ch_info) ||
2637 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
2638 scan_ch->type = 0; /* passive */
2640 scan_ch->type = 1; /* active */
2642 if (scan_ch->type & 1)
2643 scan_ch->type |= (direct_mask << 1);
2645 scan_ch->active_dwell = cpu_to_le16(active_dwell);
2646 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
2648 /* Set txpower levels to defaults */
2649 scan_ch->tpc.dsp_atten = 110;
2650 /* scan_pwr_info->tpc.dsp_atten; */
2652 /*scan_pwr_info->tpc.tx_gain; */
2653 if (band == IEEE80211_BAND_5GHZ)
2654 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
2656 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
2657 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
2659 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
2663 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
2665 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
2666 (scan_ch->type & 1) ?
2667 active_dwell : passive_dwell);
2673 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
2677 /******************************************************************************
2679 * uCode download functions
2681 ******************************************************************************/
2683 static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
2685 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
2686 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
2687 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
2688 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
2689 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
2690 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
2693 static void iwl4965_nic_start(struct iwl_priv *priv)
2695 /* Remove all resets to allow NIC to operate */
2696 iwl_write32(priv, CSR_RESET, 0);
2701 * iwl4965_read_ucode - Read uCode images from disk file.
2703 * Copy into buffers for card to fetch via bus-mastering
2705 static int iwl4965_read_ucode(struct iwl_priv *priv)
2707 struct iwl4965_ucode *ucode;
2709 const struct firmware *ucode_raw;
2710 const char *name = priv->cfg->fw_name;
2713 u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
2715 /* Ask kernel firmware_class module to get the boot firmware off disk.
2716 * request_firmware() is synchronous, file is in memory on return. */
2717 ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
2719 IWL_ERROR("%s firmware file req failed: Reason %d\n",
2724 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
2725 name, ucode_raw->size);
2727 /* Make sure that we got at least our header! */
2728 if (ucode_raw->size < sizeof(*ucode)) {
2729 IWL_ERROR("File size way too small!\n");
2734 /* Data from ucode file: header followed by uCode images */
2735 ucode = (void *)ucode_raw->data;
2737 ver = le32_to_cpu(ucode->ver);
2738 inst_size = le32_to_cpu(ucode->inst_size);
2739 data_size = le32_to_cpu(ucode->data_size);
2740 init_size = le32_to_cpu(ucode->init_size);
2741 init_data_size = le32_to_cpu(ucode->init_data_size);
2742 boot_size = le32_to_cpu(ucode->boot_size);
2744 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
2745 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
2747 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
2749 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
2751 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
2753 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
2756 /* Verify size of file vs. image size info in file's header */
2757 if (ucode_raw->size < sizeof(*ucode) +
2758 inst_size + data_size + init_size +
2759 init_data_size + boot_size) {
2761 IWL_DEBUG_INFO("uCode file size %d too small\n",
2762 (int)ucode_raw->size);
2767 /* Verify that uCode images will fit in card's SRAM */
2768 if (inst_size > priv->hw_params.max_inst_size) {
2769 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
2775 if (data_size > priv->hw_params.max_data_size) {
2776 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
2781 if (init_size > priv->hw_params.max_inst_size) {
2783 ("uCode init instr len %d too large to fit in\n",
2788 if (init_data_size > priv->hw_params.max_data_size) {
2790 ("uCode init data len %d too large to fit in\n",
2795 if (boot_size > priv->hw_params.max_bsm_size) {
2797 ("uCode boot instr len %d too large to fit in\n",
2803 /* Allocate ucode buffers for card's bus-master loading ... */
2805 /* Runtime instructions and 2 copies of data:
2806 * 1) unmodified from disk
2807 * 2) backup cache for save/restore during power-downs */
2808 priv->ucode_code.len = inst_size;
2809 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
2811 priv->ucode_data.len = data_size;
2812 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
2814 priv->ucode_data_backup.len = data_size;
2815 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
2817 /* Initialization instructions and data */
2818 if (init_size && init_data_size) {
2819 priv->ucode_init.len = init_size;
2820 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
2822 priv->ucode_init_data.len = init_data_size;
2823 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
2825 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
2829 /* Bootstrap (instructions only, no data) */
2831 priv->ucode_boot.len = boot_size;
2832 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
2834 if (!priv->ucode_boot.v_addr)
2838 /* Copy images into buffers for card's bus-master reads ... */
2840 /* Runtime instructions (first block of data in file) */
2841 src = &ucode->data[0];
2842 len = priv->ucode_code.len;
2843 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
2844 memcpy(priv->ucode_code.v_addr, src, len);
2845 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
2846 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
2848 /* Runtime data (2nd block)
2849 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
2850 src = &ucode->data[inst_size];
2851 len = priv->ucode_data.len;
2852 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
2853 memcpy(priv->ucode_data.v_addr, src, len);
2854 memcpy(priv->ucode_data_backup.v_addr, src, len);
2856 /* Initialization instructions (3rd block) */
2858 src = &ucode->data[inst_size + data_size];
2859 len = priv->ucode_init.len;
2860 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
2862 memcpy(priv->ucode_init.v_addr, src, len);
2865 /* Initialization data (4th block) */
2866 if (init_data_size) {
2867 src = &ucode->data[inst_size + data_size + init_size];
2868 len = priv->ucode_init_data.len;
2869 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
2871 memcpy(priv->ucode_init_data.v_addr, src, len);
2874 /* Bootstrap instructions (5th block) */
2875 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
2876 len = priv->ucode_boot.len;
2877 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len);
2878 memcpy(priv->ucode_boot.v_addr, src, len);
2880 /* We have our copies now, allow OS release its copies */
2881 release_firmware(ucode_raw);
2885 IWL_ERROR("failed to allocate pci memory\n");
2887 iwl4965_dealloc_ucode_pci(priv);
2890 release_firmware(ucode_raw);
2897 * iwl_alive_start - called after REPLY_ALIVE notification received
2898 * from protocol/runtime uCode (initialization uCode's
2899 * Alive gets handled by iwl_init_alive_start()).
2901 static void iwl_alive_start(struct iwl_priv *priv)
2905 IWL_DEBUG_INFO("Runtime Alive received.\n");
2907 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
2908 /* We had an error bringing up the hardware, so take it
2909 * all the way back down so we can try again */
2910 IWL_DEBUG_INFO("Alive failed.\n");
2914 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2915 * This is a paranoid check, because we would not have gotten the
2916 * "runtime" alive if code weren't properly loaded. */
2917 if (iwl_verify_ucode(priv)) {
2918 /* Runtime instruction load was bad;
2919 * take it all the way back down so we can try again */
2920 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
2924 iwlcore_clear_stations_table(priv);
2925 ret = priv->cfg->ops->lib->alive_notify(priv);
2927 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
2932 /* After the ALIVE response, we can send host commands to 4965 uCode */
2933 set_bit(STATUS_ALIVE, &priv->status);
2935 /* Clear out the uCode error bit if it is set */
2936 clear_bit(STATUS_FW_ERROR, &priv->status);
2938 if (iwl_is_rfkill(priv))
2941 ieee80211_wake_queues(priv->hw);
2943 priv->active_rate = priv->rates_mask;
2944 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
2946 if (iwl_is_associated(priv)) {
2947 struct iwl_rxon_cmd *active_rxon =
2948 (struct iwl_rxon_cmd *)&priv->active_rxon;
2950 memcpy(&priv->staging_rxon, &priv->active_rxon,
2951 sizeof(priv->staging_rxon));
2952 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2954 /* Initialize our rx_config data */
2955 iwl4965_connection_init_rx_config(priv);
2956 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2959 /* Configure Bluetooth device coexistence support */
2960 iwl4965_send_bt_config(priv);
2962 iwl_reset_run_time_calib(priv);
2964 /* Configure the adapter for unassociated operation */
2965 iwl4965_commit_rxon(priv);
2967 /* At this point, the NIC is initialized and operational */
2968 iwl4965_rf_kill_ct_config(priv);
2970 iwl_leds_register(priv);
2972 IWL_DEBUG_INFO("ALIVE processing complete.\n");
2973 set_bit(STATUS_READY, &priv->status);
2974 wake_up_interruptible(&priv->wait_command_queue);
2976 if (priv->error_recovering)
2977 iwl4965_error_recovery(priv);
2979 iwlcore_low_level_notify(priv, IWLCORE_START_EVT);
2980 ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
2984 queue_work(priv->workqueue, &priv->restart);
2987 static void iwl4965_cancel_deferred_work(struct iwl_priv *priv);
2989 static void __iwl4965_down(struct iwl_priv *priv)
2991 unsigned long flags;
2992 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
2994 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
2997 set_bit(STATUS_EXIT_PENDING, &priv->status);
2999 iwl_leds_unregister(priv);
3001 iwlcore_low_level_notify(priv, IWLCORE_STOP_EVT);
3003 iwlcore_clear_stations_table(priv);
3005 /* Unblock any waiting calls */
3006 wake_up_interruptible_all(&priv->wait_command_queue);
3008 /* Wipe out the EXIT_PENDING status bit if we are not actually
3009 * exiting the module */
3011 clear_bit(STATUS_EXIT_PENDING, &priv->status);
3013 /* stop and reset the on-board processor */
3014 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
3016 /* tell the device to stop sending interrupts */
3017 spin_lock_irqsave(&priv->lock, flags);
3018 iwl4965_disable_interrupts(priv);
3019 spin_unlock_irqrestore(&priv->lock, flags);
3020 iwl_synchronize_irq(priv);
3022 if (priv->mac80211_registered)
3023 ieee80211_stop_queues(priv->hw);
3025 /* If we have not previously called iwl4965_init() then
3026 * clear all bits but the RF Kill and SUSPEND bits and return */
3027 if (!iwl_is_init(priv)) {
3028 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
3030 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
3032 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
3033 STATUS_GEO_CONFIGURED |
3034 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
3039 /* ...otherwise clear out all the status bits but the RF Kill and
3040 * SUSPEND bits and continue taking the NIC down. */
3041 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
3043 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
3045 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
3046 STATUS_GEO_CONFIGURED |
3047 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
3049 test_bit(STATUS_FW_ERROR, &priv->status) <<
3052 spin_lock_irqsave(&priv->lock, flags);
3053 iwl_clear_bit(priv, CSR_GP_CNTRL,
3054 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
3055 spin_unlock_irqrestore(&priv->lock, flags);
3057 iwl_txq_ctx_stop(priv);
3060 spin_lock_irqsave(&priv->lock, flags);
3061 if (!iwl_grab_nic_access(priv)) {
3062 iwl_write_prph(priv, APMG_CLK_DIS_REG,
3063 APMG_CLK_VAL_DMA_CLK_RQT);
3064 iwl_release_nic_access(priv);
3066 spin_unlock_irqrestore(&priv->lock, flags);
3070 /* FIXME: apm_ops.suspend(priv) */
3071 priv->cfg->ops->lib->apm_ops.reset(priv);
3072 priv->cfg->ops->lib->free_shared_mem(priv);
3075 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
3077 if (priv->ibss_beacon)
3078 dev_kfree_skb(priv->ibss_beacon);
3079 priv->ibss_beacon = NULL;
3081 /* clear out any free frames */
3082 iwl_clear_free_frames(priv);
3085 static void iwl4965_down(struct iwl_priv *priv)
3087 mutex_lock(&priv->mutex);
3088 __iwl4965_down(priv);
3089 mutex_unlock(&priv->mutex);
3091 iwl4965_cancel_deferred_work(priv);
3094 #define MAX_HW_RESTARTS 5
3096 static int __iwl4965_up(struct iwl_priv *priv)
3101 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3102 IWL_WARNING("Exit pending; will not bring the NIC up\n");
3106 if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
3107 IWL_WARNING("Radio disabled by SW RF kill (module "
3109 iwl_rfkill_set_hw_state(priv);
3113 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
3114 IWL_ERROR("ucode not available for device bringup\n");
3118 /* If platform's RF_KILL switch is NOT set to KILL */
3119 if (iwl_read32(priv, CSR_GP_CNTRL) &
3120 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
3121 clear_bit(STATUS_RF_KILL_HW, &priv->status);
3123 set_bit(STATUS_RF_KILL_HW, &priv->status);
3124 if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
3125 iwl_rfkill_set_hw_state(priv);
3126 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
3131 iwl_rfkill_set_hw_state(priv);
3132 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
3134 ret = priv->cfg->ops->lib->alloc_shared_mem(priv);
3136 IWL_ERROR("Unable to allocate shared memory\n");
3140 ret = iwl_hw_nic_init(priv);
3142 IWL_ERROR("Unable to init nic\n");
3146 /* make sure rfkill handshake bits are cleared */
3147 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
3148 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
3149 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
3151 /* clear (again), then enable host interrupts */
3152 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
3153 iwl4965_enable_interrupts(priv);
3155 /* really make sure rfkill handshake bits are cleared */
3156 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
3157 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
3159 /* Copy original ucode data image from disk into backup cache.
3160 * This will be used to initialize the on-board processor's
3161 * data SRAM for a clean start when the runtime program first loads. */
3162 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
3163 priv->ucode_data.len);
3165 /* We return success when we resume from suspend and rf_kill is on. */
3166 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
3169 for (i = 0; i < MAX_HW_RESTARTS; i++) {
3171 iwlcore_clear_stations_table(priv);
3173 /* load bootstrap state machine,
3174 * load bootstrap program into processor's memory,
3175 * prepare to load the "initialize" uCode */
3176 ret = priv->cfg->ops->lib->load_ucode(priv);
3179 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret);
3183 /* start card; "initialize" will load runtime ucode */
3184 iwl4965_nic_start(priv);
3186 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
3191 set_bit(STATUS_EXIT_PENDING, &priv->status);
3192 __iwl4965_down(priv);
3194 /* tried to restart and config the device for as long as our
3195 * patience could withstand */
3196 IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
3201 /*****************************************************************************
3203 * Workqueue callbacks
3205 *****************************************************************************/
3207 static void iwl_bg_init_alive_start(struct work_struct *data)
3209 struct iwl_priv *priv =
3210 container_of(data, struct iwl_priv, init_alive_start.work);
3212 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3215 mutex_lock(&priv->mutex);
3216 priv->cfg->ops->lib->init_alive_start(priv);
3217 mutex_unlock(&priv->mutex);
3220 static void iwl_bg_alive_start(struct work_struct *data)
3222 struct iwl_priv *priv =
3223 container_of(data, struct iwl_priv, alive_start.work);
3225 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3228 mutex_lock(&priv->mutex);
3229 iwl_alive_start(priv);
3230 mutex_unlock(&priv->mutex);
3233 static void iwl4965_bg_rf_kill(struct work_struct *work)
3235 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
3237 wake_up_interruptible(&priv->wait_command_queue);
3239 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3242 mutex_lock(&priv->mutex);
3244 if (!iwl_is_rfkill(priv)) {
3245 IWL_DEBUG(IWL_DL_RF_KILL,
3246 "HW and/or SW RF Kill no longer active, restarting "
3248 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
3249 queue_work(priv->workqueue, &priv->restart);
3251 /* make sure mac80211 stop sending Tx frame */
3252 if (priv->mac80211_registered)
3253 ieee80211_stop_queues(priv->hw);
3255 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
3256 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3257 "disabled by SW switch\n");
3259 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
3260 "Kill switch must be turned off for "
3261 "wireless networking to work.\n");
3263 iwl_rfkill_set_hw_state(priv);
3265 mutex_unlock(&priv->mutex);
3268 static void iwl4965_bg_set_monitor(struct work_struct *work)
3270 struct iwl_priv *priv = container_of(work,
3271 struct iwl_priv, set_monitor);
3273 IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
3275 mutex_lock(&priv->mutex);
3277 if (!iwl_is_ready(priv))
3278 IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
3280 if (iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0)
3281 IWL_ERROR("iwl4965_set_mode() failed\n");
3283 mutex_unlock(&priv->mutex);
3286 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
3288 static void iwl4965_bg_scan_check(struct work_struct *data)
3290 struct iwl_priv *priv =
3291 container_of(data, struct iwl_priv, scan_check.work);
3293 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3296 mutex_lock(&priv->mutex);
3297 if (test_bit(STATUS_SCANNING, &priv->status) ||
3298 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
3299 IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting "
3301 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
3303 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
3304 iwl4965_send_scan_abort(priv);
3306 mutex_unlock(&priv->mutex);
3309 static void iwl4965_bg_request_scan(struct work_struct *data)
3311 struct iwl_priv *priv =
3312 container_of(data, struct iwl_priv, request_scan);
3313 struct iwl_host_cmd cmd = {
3314 .id = REPLY_SCAN_CMD,
3315 .len = sizeof(struct iwl4965_scan_cmd),
3316 .meta.flags = CMD_SIZE_HUGE,
3318 struct iwl4965_scan_cmd *scan;
3319 struct ieee80211_conf *conf = NULL;
3321 enum ieee80211_band band;
3325 conf = ieee80211_get_hw_conf(priv->hw);
3327 mutex_lock(&priv->mutex);
3329 if (!iwl_is_ready(priv)) {
3330 IWL_WARNING("request scan called when driver not ready.\n");
3334 /* Make sure the scan wasn't cancelled before this queued work
3335 * was given the chance to run... */
3336 if (!test_bit(STATUS_SCANNING, &priv->status))
3339 /* This should never be called or scheduled if there is currently
3340 * a scan active in the hardware. */
3341 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
3342 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
3343 "Ignoring second request.\n");
3348 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3349 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
3353 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
3354 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
3358 if (iwl_is_rfkill(priv)) {
3359 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
3363 if (!test_bit(STATUS_READY, &priv->status)) {
3364 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
3368 if (!priv->scan_bands) {
3369 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
3374 priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) +
3375 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
3382 memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE);
3384 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
3385 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
3387 if (iwl_is_associated(priv)) {
3390 u32 suspend_time = 100;
3391 u32 scan_suspend_time = 100;
3392 unsigned long flags;
3394 IWL_DEBUG_INFO("Scanning while associated...\n");
3396 spin_lock_irqsave(&priv->lock, flags);
3397 interval = priv->beacon_int;
3398 spin_unlock_irqrestore(&priv->lock, flags);
3400 scan->suspend_time = 0;
3401 scan->max_out_time = cpu_to_le32(200 * 1024);
3403 interval = suspend_time;
3405 extra = (suspend_time / interval) << 22;
3406 scan_suspend_time = (extra |
3407 ((suspend_time % interval) * 1024));
3408 scan->suspend_time = cpu_to_le32(scan_suspend_time);
3409 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
3410 scan_suspend_time, interval);
3413 /* We should add the ability for user to lock to PASSIVE ONLY */
3414 if (priv->one_direct_scan) {
3416 ("Kicking off one direct scan for '%s'\n",
3417 iwl4965_escape_essid(priv->direct_ssid,
3418 priv->direct_ssid_len));
3419 scan->direct_scan[0].id = WLAN_EID_SSID;
3420 scan->direct_scan[0].len = priv->direct_ssid_len;
3421 memcpy(scan->direct_scan[0].ssid,
3422 priv->direct_ssid, priv->direct_ssid_len);
3424 } else if (!iwl_is_associated(priv) && priv->essid_len) {
3426 ("Kicking off one direct scan for '%s' when not associated\n",
3427 iwl4965_escape_essid(priv->essid, priv->essid_len));
3428 scan->direct_scan[0].id = WLAN_EID_SSID;
3429 scan->direct_scan[0].len = priv->essid_len;
3430 memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
3433 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
3437 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
3438 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
3439 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
3442 switch (priv->scan_bands) {
3444 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
3445 scan->tx_cmd.rate_n_flags =
3446 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP,
3447 RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK);
3449 scan->good_CRC_th = 0;
3450 band = IEEE80211_BAND_2GHZ;
3454 scan->tx_cmd.rate_n_flags =
3455 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
3456 RATE_MCS_ANT_B_MSK);
3457 scan->good_CRC_th = IWL_GOOD_CRC_TH;
3458 band = IEEE80211_BAND_5GHZ;
3462 IWL_WARNING("Invalid scan band count\n");
3466 /* We don't build a direct scan probe request; the uCode will do
3467 * that based on the direct_mask added to each channel entry */
3468 cmd_len = iwl4965_fill_probe_req(priv, band,
3469 (struct ieee80211_mgmt *)scan->data,
3470 IWL_MAX_SCAN_SIZE - sizeof(*scan), 0);
3472 scan->tx_cmd.len = cpu_to_le16(cmd_len);
3473 /* select Rx chains */
3475 /* Force use of chains B and C (0x6) for scan Rx.
3476 * Avoid A (0x1) because of its off-channel reception on A-band.
3477 * MIMO is not used here, but value is required to make uCode happy. */
3478 scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
3479 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
3480 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) |
3481 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
3483 if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
3484 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
3487 scan->channel_count =
3488 iwl4965_get_channels_for_scan(
3489 priv, band, 1, /* active */
3491 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
3493 scan->channel_count =
3494 iwl4965_get_channels_for_scan(
3495 priv, band, 0, /* passive */
3497 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
3499 scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK |
3500 RXON_FILTER_BCON_AWARE_MSK);
3501 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
3502 scan->channel_count * sizeof(struct iwl4965_scan_channel);
3504 scan->len = cpu_to_le16(cmd.len);
3506 set_bit(STATUS_SCAN_HW, &priv->status);
3507 ret = iwl_send_cmd_sync(priv, &cmd);
3511 queue_delayed_work(priv->workqueue, &priv->scan_check,
3512 IWL_SCAN_CHECK_WATCHDOG);
3514 mutex_unlock(&priv->mutex);
3518 /* inform mac80211 scan aborted */
3519 queue_work(priv->workqueue, &priv->scan_completed);
3520 mutex_unlock(&priv->mutex);
3523 static void iwl4965_bg_up(struct work_struct *data)
3525 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
3527 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3530 mutex_lock(&priv->mutex);
3532 mutex_unlock(&priv->mutex);
3535 static void iwl4965_bg_restart(struct work_struct *data)
3537 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
3539 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3543 queue_work(priv->workqueue, &priv->up);
3546 static void iwl4965_bg_rx_replenish(struct work_struct *data)
3548 struct iwl_priv *priv =
3549 container_of(data, struct iwl_priv, rx_replenish);
3551 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3554 mutex_lock(&priv->mutex);
3555 iwl_rx_replenish(priv);
3556 mutex_unlock(&priv->mutex);
3559 #define IWL_DELAY_NEXT_SCAN (HZ*2)
3561 static void iwl4965_post_associate(struct iwl_priv *priv)
3563 struct ieee80211_conf *conf = NULL;
3565 DECLARE_MAC_BUF(mac);
3567 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
3568 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
3572 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
3574 print_mac(mac, priv->active_rxon.bssid_addr));
3577 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3581 if (!priv->vif || !priv->is_open)
3584 iwl4965_scan_cancel_timeout(priv, 200);
3586 conf = ieee80211_get_hw_conf(priv->hw);
3588 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3589 iwl4965_commit_rxon(priv);
3591 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
3592 iwl4965_setup_rxon_timing(priv);
3593 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
3594 sizeof(priv->rxon_timing), &priv->rxon_timing);
3596 IWL_WARNING("REPLY_RXON_TIMING failed - "
3597 "Attempting to continue.\n");
3599 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
3601 #ifdef CONFIG_IWL4965_HT
3602 if (priv->current_ht_config.is_ht)
3603 iwl_set_rxon_ht(priv, &priv->current_ht_config);
3604 #endif /* CONFIG_IWL4965_HT*/
3605 iwl_set_rxon_chain(priv);
3606 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
3608 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
3609 priv->assoc_id, priv->beacon_int);
3611 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
3612 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
3614 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
3616 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
3617 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
3618 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
3620 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
3622 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
3623 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
3627 iwl4965_commit_rxon(priv);
3629 switch (priv->iw_mode) {
3630 case IEEE80211_IF_TYPE_STA:
3631 iwl4965_rate_scale_init(priv->hw, IWL_AP_ID);
3634 case IEEE80211_IF_TYPE_IBSS:
3636 /* clear out the station table */
3637 iwlcore_clear_stations_table(priv);
3639 iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
3640 iwl_rxon_add_station(priv, priv->bssid, 0);
3641 iwl4965_rate_scale_init(priv->hw, IWL_STA_ID);
3642 iwl4965_send_beacon_cmd(priv);
3647 IWL_ERROR("%s Should not be called in %d mode\n",
3648 __FUNCTION__, priv->iw_mode);
3652 iwl4965_sequence_reset(priv);
3654 /* Enable Rx differential gain and sensitivity calibrations */
3655 iwl_chain_noise_reset(priv);
3656 priv->start_calib = 1;
3658 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
3659 priv->assoc_station_added = 1;
3661 iwl4965_activate_qos(priv, 0);
3663 iwl_power_update_mode(priv, 0);
3664 /* we have just associated, don't start scan too early */
3665 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
3669 static void iwl4965_bg_post_associate(struct work_struct *data)
3671 struct iwl_priv *priv = container_of(data, struct iwl_priv,
3672 post_associate.work);
3674 mutex_lock(&priv->mutex);
3675 iwl4965_post_associate(priv);
3676 mutex_unlock(&priv->mutex);
3680 static void iwl4965_bg_abort_scan(struct work_struct *work)
3682 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
3684 if (!iwl_is_ready(priv))
3687 mutex_lock(&priv->mutex);
3689 set_bit(STATUS_SCAN_ABORTING, &priv->status);
3690 iwl4965_send_scan_abort(priv);
3692 mutex_unlock(&priv->mutex);
3695 static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
3697 static void iwl4965_bg_scan_completed(struct work_struct *work)
3699 struct iwl_priv *priv =
3700 container_of(work, struct iwl_priv, scan_completed);
3702 IWL_DEBUG(IWL_DL_SCAN, "SCAN complete scan\n");
3704 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3707 if (test_bit(STATUS_CONF_PENDING, &priv->status))
3708 iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
3710 ieee80211_scan_completed(priv->hw);
3712 /* Since setting the TXPOWER may have been deferred while
3713 * performing the scan, fire one off */
3714 mutex_lock(&priv->mutex);
3715 iwl4965_hw_reg_send_txpower(priv);
3716 mutex_unlock(&priv->mutex);
3719 /*****************************************************************************
3721 * mac80211 entry point functions
3723 *****************************************************************************/
3725 #define UCODE_READY_TIMEOUT (2 * HZ)
3727 static int iwl4965_mac_start(struct ieee80211_hw *hw)
3729 struct iwl_priv *priv = hw->priv;
3732 IWL_DEBUG_MAC80211("enter\n");
3734 if (pci_enable_device(priv->pci_dev)) {
3735 IWL_ERROR("Fail to pci_enable_device\n");
3738 pci_restore_state(priv->pci_dev);
3739 pci_enable_msi(priv->pci_dev);
3741 ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED,
3744 IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq);
3745 goto out_disable_msi;
3748 /* we should be verifying the device is ready to be opened */
3749 mutex_lock(&priv->mutex);
3751 memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
3752 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
3753 * ucode filename and max sizes are card-specific. */
3755 if (!priv->ucode_code.len) {
3756 ret = iwl4965_read_ucode(priv);
3758 IWL_ERROR("Could not read microcode: %d\n", ret);
3759 mutex_unlock(&priv->mutex);
3760 goto out_release_irq;
3764 ret = __iwl4965_up(priv);
3766 mutex_unlock(&priv->mutex);
3769 goto out_release_irq;
3771 IWL_DEBUG_INFO("Start UP work done.\n");
3773 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
3776 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
3777 * mac80211 will not be run successfully. */
3778 if (priv->ucode_type == UCODE_RT) {
3779 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
3780 test_bit(STATUS_READY, &priv->status),
3781 UCODE_READY_TIMEOUT);
3783 if (!test_bit(STATUS_READY, &priv->status)) {
3784 IWL_ERROR("START_ALIVE timeout after %dms.\n",
3785 jiffies_to_msecs(UCODE_READY_TIMEOUT));
3787 goto out_release_irq;
3793 IWL_DEBUG_MAC80211("leave\n");
3797 free_irq(priv->pci_dev->irq, priv);
3799 pci_disable_msi(priv->pci_dev);
3800 pci_disable_device(priv->pci_dev);
3802 IWL_DEBUG_MAC80211("leave - failed\n");
3806 static void iwl4965_mac_stop(struct ieee80211_hw *hw)
3808 struct iwl_priv *priv = hw->priv;
3810 IWL_DEBUG_MAC80211("enter\n");
3812 if (!priv->is_open) {
3813 IWL_DEBUG_MAC80211("leave - skip\n");
3819 if (iwl_is_ready_rf(priv)) {
3820 /* stop mac, cancel any scan request and clear
3821 * RXON_FILTER_ASSOC_MSK BIT
3823 mutex_lock(&priv->mutex);
3824 iwl4965_scan_cancel_timeout(priv, 100);
3825 cancel_delayed_work(&priv->post_associate);
3826 mutex_unlock(&priv->mutex);
3831 flush_workqueue(priv->workqueue);
3832 free_irq(priv->pci_dev->irq, priv);
3833 pci_disable_msi(priv->pci_dev);
3834 pci_save_state(priv->pci_dev);
3835 pci_disable_device(priv->pci_dev);
3837 IWL_DEBUG_MAC80211("leave\n");
3840 static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
3842 struct iwl_priv *priv = hw->priv;
3844 IWL_DEBUG_MAC80211("enter\n");
3846 if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
3847 IWL_DEBUG_MAC80211("leave - monitor\n");
3851 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
3852 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
3854 if (iwl_tx_skb(priv, skb))
3855 dev_kfree_skb_any(skb);
3857 IWL_DEBUG_MAC80211("leave\n");
3861 static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
3862 struct ieee80211_if_init_conf *conf)
3864 struct iwl_priv *priv = hw->priv;
3865 unsigned long flags;
3866 DECLARE_MAC_BUF(mac);
3868 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
3871 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
3875 spin_lock_irqsave(&priv->lock, flags);
3876 priv->vif = conf->vif;
3878 spin_unlock_irqrestore(&priv->lock, flags);
3880 mutex_lock(&priv->mutex);
3882 if (conf->mac_addr) {
3883 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
3884 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
3887 if (iwl_is_ready(priv))
3888 iwl4965_set_mode(priv, conf->type);
3890 mutex_unlock(&priv->mutex);
3892 IWL_DEBUG_MAC80211("leave\n");
3897 * iwl4965_mac_config - mac80211 config callback
3899 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
3900 * be set inappropriately and the driver currently sets the hardware up to
3901 * use it whenever needed.
3903 static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
3905 struct iwl_priv *priv = hw->priv;
3906 const struct iwl_channel_info *ch_info;
3907 unsigned long flags;
3910 mutex_lock(&priv->mutex);
3911 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
3913 priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
3915 if (!iwl_is_ready(priv)) {
3916 IWL_DEBUG_MAC80211("leave - not ready\n");
3921 if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
3922 test_bit(STATUS_SCANNING, &priv->status))) {
3923 IWL_DEBUG_MAC80211("leave - scanning\n");
3924 set_bit(STATUS_CONF_PENDING, &priv->status);
3925 mutex_unlock(&priv->mutex);
3929 spin_lock_irqsave(&priv->lock, flags);
3931 ch_info = iwl_get_channel_info(priv, conf->channel->band,
3932 ieee80211_frequency_to_channel(conf->channel->center_freq));
3933 if (!is_channel_valid(ch_info)) {
3934 IWL_DEBUG_MAC80211("leave - invalid channel\n");
3935 spin_unlock_irqrestore(&priv->lock, flags);
3940 #ifdef CONFIG_IWL4965_HT
3941 /* if we are switching from ht to 2.4 clear flags
3942 * from any ht related info since 2.4 does not
3944 if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel->hw_value)
3945 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
3946 && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
3949 priv->staging_rxon.flags = 0;
3950 #endif /* CONFIG_IWL4965_HT */
3952 iwl_set_rxon_channel(priv, conf->channel->band,
3953 ieee80211_frequency_to_channel(conf->channel->center_freq));
3955 iwl4965_set_flags_for_phymode(priv, conf->channel->band);
3957 /* The list of supported rates and rate mask can be different
3958 * for each band; since the band may have changed, reset
3959 * the rate mask to what mac80211 lists */
3960 iwl4965_set_rate(priv);
3962 spin_unlock_irqrestore(&priv->lock, flags);
3964 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
3965 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
3966 iwl4965_hw_channel_switch(priv, conf->channel);
3971 if (priv->cfg->ops->lib->radio_kill_sw)
3972 priv->cfg->ops->lib->radio_kill_sw(priv, !conf->radio_enabled);
3974 if (!conf->radio_enabled) {
3975 IWL_DEBUG_MAC80211("leave - radio disabled\n");
3979 if (iwl_is_rfkill(priv)) {
3980 IWL_DEBUG_MAC80211("leave - RF kill\n");
3985 iwl4965_set_rate(priv);
3987 if (memcmp(&priv->active_rxon,
3988 &priv->staging_rxon, sizeof(priv->staging_rxon)))
3989 iwl4965_commit_rxon(priv);
3991 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
3993 IWL_DEBUG_MAC80211("leave\n");
3996 clear_bit(STATUS_CONF_PENDING, &priv->status);
3997 mutex_unlock(&priv->mutex);
4001 static void iwl4965_config_ap(struct iwl_priv *priv)
4005 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4008 /* The following should be done only at AP bring up */
4009 if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
4011 /* RXON - unassoc (to set timing command) */
4012 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4013 iwl4965_commit_rxon(priv);
4016 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
4017 iwl4965_setup_rxon_timing(priv);
4018 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
4019 sizeof(priv->rxon_timing), &priv->rxon_timing);
4021 IWL_WARNING("REPLY_RXON_TIMING failed - "
4022 "Attempting to continue.\n");
4024 iwl_set_rxon_chain(priv);
4026 /* FIXME: what should be the assoc_id for AP? */
4027 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
4028 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
4029 priv->staging_rxon.flags |=
4030 RXON_FLG_SHORT_PREAMBLE_MSK;
4032 priv->staging_rxon.flags &=
4033 ~RXON_FLG_SHORT_PREAMBLE_MSK;
4035 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
4036 if (priv->assoc_capability &
4037 WLAN_CAPABILITY_SHORT_SLOT_TIME)
4038 priv->staging_rxon.flags |=
4039 RXON_FLG_SHORT_SLOT_MSK;
4041 priv->staging_rxon.flags &=
4042 ~RXON_FLG_SHORT_SLOT_MSK;
4044 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
4045 priv->staging_rxon.flags &=
4046 ~RXON_FLG_SHORT_SLOT_MSK;
4048 /* restore RXON assoc */
4049 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
4050 iwl4965_commit_rxon(priv);
4051 iwl4965_activate_qos(priv, 1);
4052 iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
4054 iwl4965_send_beacon_cmd(priv);
4056 /* FIXME - we need to add code here to detect a totally new
4057 * configuration, reset the AP, unassoc, rxon timing, assoc,
4058 * clear sta table, add BCAST sta... */
4061 static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
4062 struct ieee80211_vif *vif,
4063 struct ieee80211_if_conf *conf)
4065 struct iwl_priv *priv = hw->priv;
4066 DECLARE_MAC_BUF(mac);
4067 unsigned long flags;
4073 if (priv->vif != vif) {
4074 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
4078 if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
4079 (!conf->beacon || !conf->ssid_len)) {
4081 ("Leaving in AP mode because HostAPD is not ready.\n");
4085 if (!iwl_is_alive(priv))
4088 mutex_lock(&priv->mutex);
4091 IWL_DEBUG_MAC80211("bssid: %s\n",
4092 print_mac(mac, conf->bssid));
4095 * very dubious code was here; the probe filtering flag is never set:
4097 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
4098 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
4101 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
4103 conf->bssid = priv->mac_addr;
4104 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
4105 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
4106 print_mac(mac, conf->bssid));
4108 if (priv->ibss_beacon)
4109 dev_kfree_skb(priv->ibss_beacon);
4111 priv->ibss_beacon = conf->beacon;
4114 if (iwl_is_rfkill(priv))
4117 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
4118 !is_multicast_ether_addr(conf->bssid)) {
4119 /* If there is currently a HW scan going on in the background
4120 * then we need to cancel it else the RXON below will fail. */
4121 if (iwl4965_scan_cancel_timeout(priv, 100)) {
4122 IWL_WARNING("Aborted scan still in progress "
4124 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
4125 mutex_unlock(&priv->mutex);
4128 memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
4130 /* TODO: Audit driver for usage of these members and see
4131 * if mac80211 deprecates them (priv->bssid looks like it
4132 * shouldn't be there, but I haven't scanned the IBSS code
4133 * to verify) - jpk */
4134 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
4136 if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
4137 iwl4965_config_ap(priv);
4139 rc = iwl4965_commit_rxon(priv);
4140 if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
4141 iwl_rxon_add_station(
4142 priv, priv->active_rxon.bssid_addr, 1);
4146 iwl4965_scan_cancel_timeout(priv, 100);
4147 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4148 iwl4965_commit_rxon(priv);
4152 spin_lock_irqsave(&priv->lock, flags);
4153 if (!conf->ssid_len)
4154 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
4156 memcpy(priv->essid, conf->ssid, conf->ssid_len);
4158 priv->essid_len = conf->ssid_len;
4159 spin_unlock_irqrestore(&priv->lock, flags);
4161 IWL_DEBUG_MAC80211("leave\n");
4162 mutex_unlock(&priv->mutex);
4167 static void iwl4965_configure_filter(struct ieee80211_hw *hw,
4168 unsigned int changed_flags,
4169 unsigned int *total_flags,
4170 int mc_count, struct dev_addr_list *mc_list)
4174 * see also iwl4965_connection_init_rx_config
4176 struct iwl_priv *priv = hw->priv;
4178 if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
4179 if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
4180 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
4181 IEEE80211_IF_TYPE_MNTR,
4182 changed_flags, *total_flags);
4183 /* queue work 'cuz mac80211 is holding a lock which
4184 * prevents us from issuing (synchronous) f/w cmds */
4185 queue_work(priv->workqueue, &priv->set_monitor);
4186 new_flags &= FIF_PROMISC_IN_BSS |
4191 *total_flags = new_flags;
4194 static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
4195 struct ieee80211_if_init_conf *conf)
4197 struct iwl_priv *priv = hw->priv;
4199 IWL_DEBUG_MAC80211("enter\n");
4201 mutex_lock(&priv->mutex);
4203 if (iwl_is_ready_rf(priv)) {
4204 iwl4965_scan_cancel_timeout(priv, 100);
4205 cancel_delayed_work(&priv->post_associate);
4206 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4207 iwl4965_commit_rxon(priv);
4209 if (priv->vif == conf->vif) {
4211 memset(priv->bssid, 0, ETH_ALEN);
4212 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
4213 priv->essid_len = 0;
4215 mutex_unlock(&priv->mutex);
4217 IWL_DEBUG_MAC80211("leave\n");
4221 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
4222 static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
4223 struct ieee80211_vif *vif,
4224 struct ieee80211_bss_conf *bss_conf,
4227 struct iwl_priv *priv = hw->priv;
4229 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
4231 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
4232 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
4233 bss_conf->use_short_preamble);
4234 if (bss_conf->use_short_preamble)
4235 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
4237 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
4240 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
4241 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
4242 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
4243 priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
4245 priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
4248 if (changes & BSS_CHANGED_HT) {
4249 IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
4250 iwl4965_ht_conf(priv, bss_conf);
4251 iwl_set_rxon_chain(priv);
4254 if (changes & BSS_CHANGED_ASSOC) {
4255 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
4256 /* This should never happen as this function should
4257 * never be called from interrupt context. */
4258 if (WARN_ON_ONCE(in_interrupt()))
4260 if (bss_conf->assoc) {
4261 priv->assoc_id = bss_conf->aid;
4262 priv->beacon_int = bss_conf->beacon_int;
4263 priv->timestamp = bss_conf->timestamp;
4264 priv->assoc_capability = bss_conf->assoc_capability;
4265 priv->next_scan_jiffies = jiffies +
4266 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
4267 mutex_lock(&priv->mutex);
4268 iwl4965_post_associate(priv);
4269 mutex_unlock(&priv->mutex);
4272 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
4274 } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
4275 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
4276 iwl_send_rxon_assoc(priv);
4281 static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
4284 unsigned long flags;
4285 struct iwl_priv *priv = hw->priv;
4287 IWL_DEBUG_MAC80211("enter\n");
4289 mutex_lock(&priv->mutex);
4290 spin_lock_irqsave(&priv->lock, flags);
4292 if (!iwl_is_ready_rf(priv)) {
4294 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
4298 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
4300 IWL_ERROR("ERROR: APs don't scan\n");
4304 /* we don't schedule scan within next_scan_jiffies period */
4305 if (priv->next_scan_jiffies &&
4306 time_after(priv->next_scan_jiffies, jiffies)) {
4310 /* if we just finished scan ask for delay */
4311 if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies +
4312 IWL_DELAY_NEXT_SCAN, jiffies)) {
4317 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
4318 iwl4965_escape_essid(ssid, len), (int)len);
4320 priv->one_direct_scan = 1;
4321 priv->direct_ssid_len = (u8)
4322 min((u8) len, (u8) IW_ESSID_MAX_SIZE);
4323 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
4325 priv->one_direct_scan = 0;
4327 rc = iwl4965_scan_initiate(priv);
4329 IWL_DEBUG_MAC80211("leave\n");
4332 spin_unlock_irqrestore(&priv->lock, flags);
4333 mutex_unlock(&priv->mutex);
4338 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
4339 struct ieee80211_key_conf *keyconf, const u8 *addr,
4340 u32 iv32, u16 *phase1key)
4342 struct iwl_priv *priv = hw->priv;
4343 u8 sta_id = IWL_INVALID_STATION;
4344 unsigned long flags;
4345 __le16 key_flags = 0;
4347 DECLARE_MAC_BUF(mac);
4349 IWL_DEBUG_MAC80211("enter\n");
4351 sta_id = iwl_find_station(priv, addr);
4352 if (sta_id == IWL_INVALID_STATION) {
4353 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4354 print_mac(mac, addr));
4358 iwl4965_scan_cancel_timeout(priv, 100);
4360 key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
4361 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
4362 key_flags &= ~STA_KEY_FLG_INVALID;
4364 if (sta_id == priv->hw_params.bcast_sta_id)
4365 key_flags |= STA_KEY_MULTICAST_MSK;
4367 spin_lock_irqsave(&priv->sta_lock, flags);
4369 priv->stations[sta_id].sta.key.key_flags = key_flags;
4370 priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
4372 for (i = 0; i < 5; i++)
4373 priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
4374 cpu_to_le16(phase1key[i]);
4376 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
4377 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
4379 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
4381 spin_unlock_irqrestore(&priv->sta_lock, flags);
4383 IWL_DEBUG_MAC80211("leave\n");
4386 static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4387 const u8 *local_addr, const u8 *addr,
4388 struct ieee80211_key_conf *key)
4390 struct iwl_priv *priv = hw->priv;
4391 DECLARE_MAC_BUF(mac);
4393 u8 sta_id = IWL_INVALID_STATION;
4394 u8 is_default_wep_key = 0;
4396 IWL_DEBUG_MAC80211("enter\n");
4398 if (priv->hw_params.sw_crypto) {
4399 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
4403 if (is_zero_ether_addr(addr))
4404 /* only support pairwise keys */
4407 sta_id = iwl_find_station(priv, addr);
4408 if (sta_id == IWL_INVALID_STATION) {
4409 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4410 print_mac(mac, addr));
4415 mutex_lock(&priv->mutex);
4416 iwl4965_scan_cancel_timeout(priv, 100);
4417 mutex_unlock(&priv->mutex);
4419 /* If we are getting WEP group key and we didn't receive any key mapping
4420 * so far, we are in legacy wep mode (group key only), otherwise we are
4422 * In legacy wep mode, we use another host command to the uCode */
4423 if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
4424 priv->iw_mode != IEEE80211_IF_TYPE_AP) {
4426 is_default_wep_key = !priv->key_mapping_key;
4428 is_default_wep_key =
4429 (key->hw_key_idx == HW_KEY_DEFAULT);
4434 if (is_default_wep_key)
4435 ret = iwl_set_default_wep_key(priv, key);
4437 ret = iwl_set_dynamic_key(priv, key, sta_id);
4439 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
4442 if (is_default_wep_key)
4443 ret = iwl_remove_default_wep_key(priv, key);
4445 ret = iwl_remove_dynamic_key(priv, key, sta_id);
4447 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
4453 IWL_DEBUG_MAC80211("leave\n");
4458 static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
4459 const struct ieee80211_tx_queue_params *params)
4461 struct iwl_priv *priv = hw->priv;
4462 unsigned long flags;
4465 IWL_DEBUG_MAC80211("enter\n");
4467 if (!iwl_is_ready_rf(priv)) {
4468 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4472 if (queue >= AC_NUM) {
4473 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
4477 if (!priv->qos_data.qos_enable) {
4478 priv->qos_data.qos_active = 0;
4479 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
4482 q = AC_NUM - 1 - queue;
4484 spin_lock_irqsave(&priv->lock, flags);
4486 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
4487 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
4488 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
4489 priv->qos_data.def_qos_parm.ac[q].edca_txop =
4490 cpu_to_le16((params->txop * 32));
4492 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
4493 priv->qos_data.qos_active = 1;
4495 spin_unlock_irqrestore(&priv->lock, flags);
4497 mutex_lock(&priv->mutex);
4498 if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
4499 iwl4965_activate_qos(priv, 1);
4500 else if (priv->assoc_id && iwl_is_associated(priv))
4501 iwl4965_activate_qos(priv, 0);
4503 mutex_unlock(&priv->mutex);
4505 IWL_DEBUG_MAC80211("leave\n");
4509 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
4510 struct ieee80211_tx_queue_stats *stats)
4512 struct iwl_priv *priv = hw->priv;
4514 struct iwl_tx_queue *txq;
4515 struct iwl_queue *q;
4516 unsigned long flags;
4518 IWL_DEBUG_MAC80211("enter\n");
4520 if (!iwl_is_ready_rf(priv)) {
4521 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4525 spin_lock_irqsave(&priv->lock, flags);
4527 for (i = 0; i < AC_NUM; i++) {
4528 txq = &priv->txq[i];
4530 avail = iwl_queue_space(q);
4532 stats[i].len = q->n_window - avail;
4533 stats[i].limit = q->n_window - q->high_mark;
4534 stats[i].count = q->n_window;
4537 spin_unlock_irqrestore(&priv->lock, flags);
4539 IWL_DEBUG_MAC80211("leave\n");
4544 static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
4545 struct ieee80211_low_level_stats *stats)
4547 struct iwl_priv *priv = hw->priv;
4550 IWL_DEBUG_MAC80211("enter\n");
4551 IWL_DEBUG_MAC80211("leave\n");
4556 static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw)
4558 struct iwl_priv *priv;
4561 IWL_DEBUG_MAC80211("enter\n");
4562 IWL_DEBUG_MAC80211("leave\n");
4567 static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
4569 struct iwl_priv *priv = hw->priv;
4570 unsigned long flags;
4572 mutex_lock(&priv->mutex);
4573 IWL_DEBUG_MAC80211("enter\n");
4575 priv->lq_mngr.lq_ready = 0;
4576 #ifdef CONFIG_IWL4965_HT
4577 spin_lock_irqsave(&priv->lock, flags);
4578 memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
4579 spin_unlock_irqrestore(&priv->lock, flags);
4580 #endif /* CONFIG_IWL4965_HT */
4582 iwl_reset_qos(priv);
4584 cancel_delayed_work(&priv->post_associate);
4586 spin_lock_irqsave(&priv->lock, flags);
4588 priv->assoc_capability = 0;
4589 priv->assoc_station_added = 0;
4591 /* new association get rid of ibss beacon skb */
4592 if (priv->ibss_beacon)
4593 dev_kfree_skb(priv->ibss_beacon);
4595 priv->ibss_beacon = NULL;
4597 priv->beacon_int = priv->hw->conf.beacon_int;
4598 priv->timestamp = 0;
4599 if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
4600 priv->beacon_int = 0;
4602 spin_unlock_irqrestore(&priv->lock, flags);
4604 if (!iwl_is_ready_rf(priv)) {
4605 IWL_DEBUG_MAC80211("leave - not ready\n");
4606 mutex_unlock(&priv->mutex);
4610 /* we are restarting association process
4611 * clear RXON_FILTER_ASSOC_MSK bit
4613 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
4614 iwl4965_scan_cancel_timeout(priv, 100);
4615 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4616 iwl4965_commit_rxon(priv);
4619 iwl_power_update_mode(priv, 0);
4621 /* Per mac80211.h: This is only used in IBSS mode... */
4622 if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
4624 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
4625 mutex_unlock(&priv->mutex);
4629 iwl4965_set_rate(priv);
4631 mutex_unlock(&priv->mutex);
4633 IWL_DEBUG_MAC80211("leave\n");
4636 static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
4638 struct iwl_priv *priv = hw->priv;
4639 unsigned long flags;
4641 mutex_lock(&priv->mutex);
4642 IWL_DEBUG_MAC80211("enter\n");
4644 if (!iwl_is_ready_rf(priv)) {
4645 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4646 mutex_unlock(&priv->mutex);
4650 if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
4651 IWL_DEBUG_MAC80211("leave - not IBSS\n");
4652 mutex_unlock(&priv->mutex);
4656 spin_lock_irqsave(&priv->lock, flags);
4658 if (priv->ibss_beacon)
4659 dev_kfree_skb(priv->ibss_beacon);
4661 priv->ibss_beacon = skb;
4665 IWL_DEBUG_MAC80211("leave\n");
4666 spin_unlock_irqrestore(&priv->lock, flags);
4668 iwl_reset_qos(priv);
4670 queue_work(priv->workqueue, &priv->post_associate.work);
4672 mutex_unlock(&priv->mutex);
4677 /*****************************************************************************
4681 *****************************************************************************/
4683 #ifdef CONFIG_IWLWIFI_DEBUG
4686 * The following adds a new attribute to the sysfs representation
4687 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
4688 * used for controlling the debug level.
4690 * See the level definitions in iwl for details.
4693 static ssize_t show_debug_level(struct device *d,
4694 struct device_attribute *attr, char *buf)
4696 struct iwl_priv *priv = d->driver_data;
4698 return sprintf(buf, "0x%08X\n", priv->debug_level);
4700 static ssize_t store_debug_level(struct device *d,
4701 struct device_attribute *attr,
4702 const char *buf, size_t count)
4704 struct iwl_priv *priv = d->driver_data;
4705 char *p = (char *)buf;
4708 val = simple_strtoul(p, &p, 0);
4710 printk(KERN_INFO DRV_NAME
4711 ": %s is not in hex or decimal form.\n", buf);
4713 priv->debug_level = val;
4715 return strnlen(buf, count);
4718 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
4719 show_debug_level, store_debug_level);
4722 #endif /* CONFIG_IWLWIFI_DEBUG */
4725 static ssize_t show_version(struct device *d,
4726 struct device_attribute *attr, char *buf)
4728 struct iwl_priv *priv = d->driver_data;
4729 struct iwl_alive_resp *palive = &priv->card_alive;
4731 if (palive->is_valid)
4732 return sprintf(buf, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
4733 "fw type: 0x%01X 0x%01X\n",
4734 palive->ucode_major, palive->ucode_minor,
4735 palive->sw_rev[0], palive->sw_rev[1],
4736 palive->ver_type, palive->ver_subtype);
4739 return sprintf(buf, "fw not loaded\n");
4742 static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
4744 static ssize_t show_temperature(struct device *d,
4745 struct device_attribute *attr, char *buf)
4747 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4749 if (!iwl_is_alive(priv))
4752 return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv));
4755 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
4757 static ssize_t show_rs_window(struct device *d,
4758 struct device_attribute *attr,
4761 struct iwl_priv *priv = d->driver_data;
4762 return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID);
4764 static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
4766 static ssize_t show_tx_power(struct device *d,
4767 struct device_attribute *attr, char *buf)
4769 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4770 return sprintf(buf, "%d\n", priv->user_txpower_limit);
4773 static ssize_t store_tx_power(struct device *d,
4774 struct device_attribute *attr,
4775 const char *buf, size_t count)
4777 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4778 char *p = (char *)buf;
4781 val = simple_strtoul(p, &p, 10);
4783 printk(KERN_INFO DRV_NAME
4784 ": %s is not in decimal form.\n", buf);
4786 iwl4965_hw_reg_set_txpower(priv, val);
4791 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
4793 static ssize_t show_flags(struct device *d,
4794 struct device_attribute *attr, char *buf)
4796 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4798 return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
4801 static ssize_t store_flags(struct device *d,
4802 struct device_attribute *attr,
4803 const char *buf, size_t count)
4805 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4806 u32 flags = simple_strtoul(buf, NULL, 0);
4808 mutex_lock(&priv->mutex);
4809 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
4810 /* Cancel any currently running scans... */
4811 if (iwl4965_scan_cancel_timeout(priv, 100))
4812 IWL_WARNING("Could not cancel scan.\n");
4814 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
4816 priv->staging_rxon.flags = cpu_to_le32(flags);
4817 iwl4965_commit_rxon(priv);
4820 mutex_unlock(&priv->mutex);
4825 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
4827 static ssize_t show_filter_flags(struct device *d,
4828 struct device_attribute *attr, char *buf)
4830 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4832 return sprintf(buf, "0x%04X\n",
4833 le32_to_cpu(priv->active_rxon.filter_flags));
4836 static ssize_t store_filter_flags(struct device *d,
4837 struct device_attribute *attr,
4838 const char *buf, size_t count)
4840 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4841 u32 filter_flags = simple_strtoul(buf, NULL, 0);
4843 mutex_lock(&priv->mutex);
4844 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
4845 /* Cancel any currently running scans... */
4846 if (iwl4965_scan_cancel_timeout(priv, 100))
4847 IWL_WARNING("Could not cancel scan.\n");
4849 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
4850 "0x%04X\n", filter_flags);
4851 priv->staging_rxon.filter_flags =
4852 cpu_to_le32(filter_flags);
4853 iwl4965_commit_rxon(priv);
4856 mutex_unlock(&priv->mutex);
4861 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
4862 store_filter_flags);
4864 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
4866 static ssize_t show_measurement(struct device *d,
4867 struct device_attribute *attr, char *buf)
4869 struct iwl_priv *priv = dev_get_drvdata(d);
4870 struct iwl4965_spectrum_notification measure_report;
4871 u32 size = sizeof(measure_report), len = 0, ofs = 0;
4872 u8 *data = (u8 *) & measure_report;
4873 unsigned long flags;
4875 spin_lock_irqsave(&priv->lock, flags);
4876 if (!(priv->measurement_status & MEASUREMENT_READY)) {
4877 spin_unlock_irqrestore(&priv->lock, flags);
4880 memcpy(&measure_report, &priv->measure_report, size);
4881 priv->measurement_status = 0;
4882 spin_unlock_irqrestore(&priv->lock, flags);
4884 while (size && (PAGE_SIZE - len)) {
4885 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
4886 PAGE_SIZE - len, 1);
4888 if (PAGE_SIZE - len)
4892 size -= min(size, 16U);
4898 static ssize_t store_measurement(struct device *d,
4899 struct device_attribute *attr,
4900 const char *buf, size_t count)
4902 struct iwl_priv *priv = dev_get_drvdata(d);
4903 struct ieee80211_measurement_params params = {
4904 .channel = le16_to_cpu(priv->active_rxon.channel),
4905 .start_time = cpu_to_le64(priv->last_tsf),
4906 .duration = cpu_to_le16(1),
4908 u8 type = IWL_MEASURE_BASIC;
4914 strncpy(buffer, buf, min(sizeof(buffer), count));
4915 channel = simple_strtoul(p, NULL, 0);
4917 params.channel = channel;
4920 while (*p && *p != ' ')
4923 type = simple_strtoul(p + 1, NULL, 0);
4926 IWL_DEBUG_INFO("Invoking measurement of type %d on "
4927 "channel %d (for '%s')\n", type, params.channel, buf);
4928 iwl4965_get_measurement(priv, ¶ms, type);
4933 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
4934 show_measurement, store_measurement);
4935 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
4937 static ssize_t store_retry_rate(struct device *d,
4938 struct device_attribute *attr,
4939 const char *buf, size_t count)
4941 struct iwl_priv *priv = dev_get_drvdata(d);
4943 priv->retry_rate = simple_strtoul(buf, NULL, 0);
4944 if (priv->retry_rate <= 0)
4945 priv->retry_rate = 1;
4950 static ssize_t show_retry_rate(struct device *d,
4951 struct device_attribute *attr, char *buf)
4953 struct iwl_priv *priv = dev_get_drvdata(d);
4954 return sprintf(buf, "%d", priv->retry_rate);
4957 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
4960 static ssize_t store_power_level(struct device *d,
4961 struct device_attribute *attr,
4962 const char *buf, size_t count)
4964 struct iwl_priv *priv = dev_get_drvdata(d);
4968 mode = simple_strtoul(buf, NULL, 0);
4969 mutex_lock(&priv->mutex);
4971 if (!iwl_is_ready(priv)) {
4976 rc = iwl_power_set_user_mode(priv, mode);
4978 IWL_DEBUG_MAC80211("failed setting power mode.\n");
4984 mutex_unlock(&priv->mutex);
4988 #define MAX_WX_STRING 80
4990 /* Values are in microsecond */
4991 static const s32 timeout_duration[] = {
4998 static const s32 period_duration[] = {
5006 static ssize_t show_power_level(struct device *d,
5007 struct device_attribute *attr, char *buf)
5009 struct iwl_priv *priv = dev_get_drvdata(d);
5010 int level = priv->power_data.power_mode;
5013 p += sprintf(p, "%d ", level);
5015 case IWL_POWER_MODE_CAM:
5017 p += sprintf(p, "(AC)");
5019 case IWL_POWER_BATTERY:
5020 p += sprintf(p, "(BATTERY)");
5024 "(Timeout %dms, Period %dms)",
5025 timeout_duration[level - 1] / 1000,
5026 period_duration[level - 1] / 1000);
5029 if (!(priv->power_mode & IWL_POWER_ENABLED))
5030 p += sprintf(p, " OFF\n");
5032 p += sprintf(p, " \n");
5034 p += sprintf(p, " \n");
5035 return (p - buf + 1);
5038 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
5041 static ssize_t show_channels(struct device *d,
5042 struct device_attribute *attr, char *buf)
5044 /* all this shit doesn't belong into sysfs anyway */
5048 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
5050 static ssize_t show_statistics(struct device *d,
5051 struct device_attribute *attr, char *buf)
5053 struct iwl_priv *priv = dev_get_drvdata(d);
5054 u32 size = sizeof(struct iwl4965_notif_statistics);
5055 u32 len = 0, ofs = 0;
5056 u8 *data = (u8 *) & priv->statistics;
5059 if (!iwl_is_alive(priv))
5062 mutex_lock(&priv->mutex);
5063 rc = iwl_send_statistics_request(priv, 0);
5064 mutex_unlock(&priv->mutex);
5068 "Error sending statistics request: 0x%08X\n", rc);
5072 while (size && (PAGE_SIZE - len)) {
5073 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
5074 PAGE_SIZE - len, 1);
5076 if (PAGE_SIZE - len)
5080 size -= min(size, 16U);
5086 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
5088 static ssize_t show_status(struct device *d,
5089 struct device_attribute *attr, char *buf)
5091 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
5092 if (!iwl_is_alive(priv))
5094 return sprintf(buf, "0x%08x\n", (int)priv->status);
5097 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
5099 /*****************************************************************************
5101 * driver setup and teardown
5103 *****************************************************************************/
5105 static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
5107 priv->workqueue = create_workqueue(DRV_NAME);
5109 init_waitqueue_head(&priv->wait_command_queue);
5111 INIT_WORK(&priv->up, iwl4965_bg_up);
5112 INIT_WORK(&priv->restart, iwl4965_bg_restart);
5113 INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
5114 INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed);
5115 INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan);
5116 INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan);
5117 INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
5118 INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
5119 INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
5120 INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate);
5121 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
5122 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
5123 INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check);
5125 iwl4965_hw_setup_deferred_work(priv);
5127 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
5128 iwl4965_irq_tasklet, (unsigned long)priv);
5131 static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
5133 iwl4965_hw_cancel_deferred_work(priv);
5135 cancel_delayed_work_sync(&priv->init_alive_start);
5136 cancel_delayed_work(&priv->scan_check);
5137 cancel_delayed_work(&priv->alive_start);
5138 cancel_delayed_work(&priv->post_associate);
5139 cancel_work_sync(&priv->beacon_update);
5142 static struct attribute *iwl4965_sysfs_entries[] = {
5143 &dev_attr_channels.attr,
5144 &dev_attr_flags.attr,
5145 &dev_attr_filter_flags.attr,
5146 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5147 &dev_attr_measurement.attr,
5149 &dev_attr_power_level.attr,
5150 &dev_attr_retry_rate.attr,
5151 &dev_attr_rs_window.attr,
5152 &dev_attr_statistics.attr,
5153 &dev_attr_status.attr,
5154 &dev_attr_temperature.attr,
5155 &dev_attr_tx_power.attr,
5156 #ifdef CONFIG_IWLWIFI_DEBUG
5157 &dev_attr_debug_level.attr,
5159 &dev_attr_version.attr,
5164 static struct attribute_group iwl4965_attribute_group = {
5165 .name = NULL, /* put in device directory */
5166 .attrs = iwl4965_sysfs_entries,
5169 static struct ieee80211_ops iwl4965_hw_ops = {
5170 .tx = iwl4965_mac_tx,
5171 .start = iwl4965_mac_start,
5172 .stop = iwl4965_mac_stop,
5173 .add_interface = iwl4965_mac_add_interface,
5174 .remove_interface = iwl4965_mac_remove_interface,
5175 .config = iwl4965_mac_config,
5176 .config_interface = iwl4965_mac_config_interface,
5177 .configure_filter = iwl4965_configure_filter,
5178 .set_key = iwl4965_mac_set_key,
5179 .update_tkip_key = iwl4965_mac_update_tkip_key,
5180 .get_stats = iwl4965_mac_get_stats,
5181 .get_tx_stats = iwl4965_mac_get_tx_stats,
5182 .conf_tx = iwl4965_mac_conf_tx,
5183 .get_tsf = iwl4965_mac_get_tsf,
5184 .reset_tsf = iwl4965_mac_reset_tsf,
5185 .beacon_update = iwl4965_mac_beacon_update,
5186 .bss_info_changed = iwl4965_bss_info_changed,
5187 #ifdef CONFIG_IWL4965_HT
5188 .ampdu_action = iwl4965_mac_ampdu_action,
5189 #endif /* CONFIG_IWL4965_HT */
5190 .hw_scan = iwl4965_mac_hw_scan
5193 static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
5196 struct iwl_priv *priv;
5197 struct ieee80211_hw *hw;
5198 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
5199 unsigned long flags;
5200 DECLARE_MAC_BUF(mac);
5202 /************************
5203 * 1. Allocating HW data
5204 ************************/
5206 /* Disabling hardware scan means that mac80211 will perform scans
5207 * "the hard way", rather than using device's scan. */
5208 if (cfg->mod_params->disable_hw_scan) {
5209 if (cfg->mod_params->debug & IWL_DL_INFO)
5210 dev_printk(KERN_DEBUG, &(pdev->dev),
5211 "Disabling hw_scan\n");
5212 iwl4965_hw_ops.hw_scan = NULL;
5215 hw = iwl_alloc_all(cfg, &iwl4965_hw_ops);
5221 /* At this point both hw and priv are allocated. */
5223 SET_IEEE80211_DEV(hw, &pdev->dev);
5225 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
5227 priv->pci_dev = pdev;
5229 #ifdef CONFIG_IWLWIFI_DEBUG
5230 priv->debug_level = priv->cfg->mod_params->debug;
5231 atomic_set(&priv->restrict_refcnt, 0);
5234 /**************************
5235 * 2. Initializing PCI bus
5236 **************************/
5237 if (pci_enable_device(pdev)) {
5239 goto out_ieee80211_free_hw;
5242 pci_set_master(pdev);
5244 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
5246 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
5248 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
5250 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
5251 /* both attempts failed: */
5253 printk(KERN_WARNING "%s: No suitable DMA available.\n",
5255 goto out_pci_disable_device;
5259 err = pci_request_regions(pdev, DRV_NAME);
5261 goto out_pci_disable_device;
5263 pci_set_drvdata(pdev, priv);
5265 /* We disable the RETRY_TIMEOUT register (0x41) to keep
5266 * PCI Tx retries from interfering with C3 CPU state */
5267 pci_write_config_byte(pdev, 0x41, 0x00);
5269 /***********************
5270 * 3. Read REV register
5271 ***********************/
5272 priv->hw_base = pci_iomap(pdev, 0, 0);
5273 if (!priv->hw_base) {
5275 goto out_pci_release_regions;
5278 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
5279 (unsigned long long) pci_resource_len(pdev, 0));
5280 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
5282 iwl_hw_detect(priv);
5283 printk(KERN_INFO DRV_NAME
5284 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
5285 priv->cfg->name, priv->hw_rev);
5288 err = priv->cfg->ops->lib->apm_ops.init(priv);
5290 IWL_DEBUG_INFO("Failed to init APMG\n");
5296 /* Read the EEPROM */
5297 err = iwl_eeprom_init(priv);
5299 IWL_ERROR("Unable to init EEPROM\n");
5302 err = iwl_eeprom_check_version(priv);
5306 /* extract MAC Address */
5307 iwl_eeprom_get_mac(priv, priv->mac_addr);
5308 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
5309 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
5311 /************************
5312 * 5. Setup HW constants
5313 ************************/
5314 /* Device-specific setup */
5315 if (priv->cfg->ops->lib->set_hw_params(priv)) {
5316 IWL_ERROR("failed to set hw parameters\n");
5317 goto out_free_eeprom;
5320 /*******************
5322 *******************/
5324 err = iwl_init_drv(priv);
5326 goto out_free_eeprom;
5327 /* At this point both hw and priv are initialized. */
5329 /**********************************
5330 * 7. Initialize module parameters
5331 **********************************/
5333 /* Disable radio (SW RF KILL) via parameter when loading driver */
5334 if (priv->cfg->mod_params->disable) {
5335 set_bit(STATUS_RF_KILL_SW, &priv->status);
5336 IWL_DEBUG_INFO("Radio disabled.\n");
5339 /********************
5341 ********************/
5342 spin_lock_irqsave(&priv->lock, flags);
5343 iwl4965_disable_interrupts(priv);
5344 spin_unlock_irqrestore(&priv->lock, flags);
5346 err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
5348 IWL_ERROR("failed to create sysfs device attributes\n");
5349 goto out_uninit_drv;
5353 iwl4965_setup_deferred_work(priv);
5354 iwl4965_setup_rx_handlers(priv);
5356 /********************
5358 ********************/
5359 pci_save_state(pdev);
5360 pci_disable_device(pdev);
5362 /**********************************
5363 * 10. Setup and register mac80211
5364 **********************************/
5366 err = iwl_setup_mac(priv);
5368 goto out_remove_sysfs;
5370 err = iwl_dbgfs_register(priv, DRV_NAME);
5372 IWL_ERROR("failed to create debugfs files\n");
5374 /* notify iwlcore to init */
5375 iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT);
5379 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
5381 iwl_uninit_drv(priv);
5383 iwl_eeprom_free(priv);
5385 pci_iounmap(pdev, priv->hw_base);
5386 out_pci_release_regions:
5387 pci_release_regions(pdev);
5388 pci_set_drvdata(pdev, NULL);
5389 out_pci_disable_device:
5390 pci_disable_device(pdev);
5391 out_ieee80211_free_hw:
5392 ieee80211_free_hw(priv->hw);
5397 static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
5399 struct iwl_priv *priv = pci_get_drvdata(pdev);
5400 struct list_head *p, *q;
5402 unsigned long flags;
5407 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
5409 if (priv->mac80211_registered) {
5410 ieee80211_unregister_hw(priv->hw);
5411 priv->mac80211_registered = 0;
5414 set_bit(STATUS_EXIT_PENDING, &priv->status);
5418 /* make sure we flush any pending irq or
5419 * tasklet for the driver
5421 spin_lock_irqsave(&priv->lock, flags);
5422 iwl4965_disable_interrupts(priv);
5423 spin_unlock_irqrestore(&priv->lock, flags);
5425 iwl_synchronize_irq(priv);
5427 /* Free MAC hash list for ADHOC */
5428 for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) {
5429 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
5431 kfree(list_entry(p, struct iwl4965_ibss_seq, list));
5435 iwlcore_low_level_notify(priv, IWLCORE_REMOVE_EVT);
5436 iwl_dbgfs_unregister(priv);
5437 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
5439 iwl4965_dealloc_ucode_pci(priv);
5442 iwl_rx_queue_free(priv, &priv->rxq);
5443 iwl_hw_txq_ctx_free(priv);
5445 iwlcore_clear_stations_table(priv);
5446 iwl_eeprom_free(priv);
5449 /*netif_stop_queue(dev); */
5450 flush_workqueue(priv->workqueue);
5452 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
5453 * priv->workqueue... so we can't take down the workqueue
5455 destroy_workqueue(priv->workqueue);
5456 priv->workqueue = NULL;
5458 pci_iounmap(pdev, priv->hw_base);
5459 pci_release_regions(pdev);
5460 pci_disable_device(pdev);
5461 pci_set_drvdata(pdev, NULL);
5463 iwl_uninit_drv(priv);
5465 if (priv->ibss_beacon)
5466 dev_kfree_skb(priv->ibss_beacon);
5468 ieee80211_free_hw(priv->hw);
5473 static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
5475 struct iwl_priv *priv = pci_get_drvdata(pdev);
5477 if (priv->is_open) {
5478 set_bit(STATUS_IN_SUSPEND, &priv->status);
5479 iwl4965_mac_stop(priv->hw);
5483 pci_set_power_state(pdev, PCI_D3hot);
5488 static int iwl4965_pci_resume(struct pci_dev *pdev)
5490 struct iwl_priv *priv = pci_get_drvdata(pdev);
5492 pci_set_power_state(pdev, PCI_D0);
5495 iwl4965_mac_start(priv->hw);
5497 clear_bit(STATUS_IN_SUSPEND, &priv->status);
5501 #endif /* CONFIG_PM */
5503 /*****************************************************************************
5505 * driver and module entry point
5507 *****************************************************************************/
5509 /* Hardware specific file defines the PCI IDs table for that hardware module */
5510 static struct pci_device_id iwl_hw_card_ids[] = {
5511 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
5512 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
5513 #ifdef CONFIG_IWL5000
5514 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
5515 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
5516 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)},
5517 #endif /* CONFIG_IWL5000 */
5520 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
5522 static struct pci_driver iwl_driver = {
5524 .id_table = iwl_hw_card_ids,
5525 .probe = iwl4965_pci_probe,
5526 .remove = __devexit_p(iwl4965_pci_remove),
5528 .suspend = iwl4965_pci_suspend,
5529 .resume = iwl4965_pci_resume,
5533 static int __init iwl4965_init(void)
5537 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
5538 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
5540 ret = iwl4965_rate_control_register();
5542 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
5546 ret = pci_register_driver(&iwl_driver);
5548 IWL_ERROR("Unable to initialize PCI module\n");
5549 goto error_register;
5555 iwl4965_rate_control_unregister();
5559 static void __exit iwl4965_exit(void)
5561 pci_unregister_driver(&iwl_driver);
5562 iwl4965_rate_control_unregister();
5565 module_exit(iwl4965_exit);
5566 module_init(iwl4965_init);