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/init.h>
33 #include <linux/pci.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/delay.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/mac80211.h>
45 #include <asm/div64.h>
47 #include "iwl-eeprom.h"
51 #include "iwl-helpers.h"
53 #include "iwl-calib.h"
56 /******************************************************************************
60 ******************************************************************************/
63 * module name, copyright, version, etc.
64 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
67 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
69 #ifdef CONFIG_IWLWIFI_DEBUG
75 #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
81 #define DRV_VERSION IWLWIFI_VERSION VD VS
84 MODULE_DESCRIPTION(DRV_DESCRIPTION);
85 MODULE_VERSION(DRV_VERSION);
86 MODULE_AUTHOR(DRV_COPYRIGHT);
87 MODULE_LICENSE("GPL");
88 MODULE_ALIAS("iwl4965");
90 /*************** STATION TABLE MANAGEMENT ****
91 * mac80211 should be examined to determine if sta_info is duplicating
92 * the functionality provided here
95 /**************************************************************/
99 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
101 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
104 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
106 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
111 * iwl4965_check_rxon_cmd - validate RXON structure is valid
113 * NOTE: This is really only useful during development and can eventually
114 * be #ifdef'd out once the driver is stable and folks aren't actively
117 static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
122 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
123 error |= le32_to_cpu(rxon->flags &
124 (RXON_FLG_TGJ_NARROW_BAND_MSK |
125 RXON_FLG_RADAR_DETECT_MSK));
127 IWL_WARNING("check 24G fields %d | %d\n",
130 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
131 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
133 IWL_WARNING("check 52 fields %d | %d\n",
135 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
137 IWL_WARNING("check 52 CCK %d | %d\n",
140 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
142 IWL_WARNING("check mac addr %d | %d\n", counter++, error);
144 /* make sure basic rates 6Mbps and 1Mbps are supported */
145 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
146 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
148 IWL_WARNING("check basic rate %d | %d\n", counter++, error);
150 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
152 IWL_WARNING("check assoc id %d | %d\n", counter++, error);
154 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
155 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
157 IWL_WARNING("check CCK and short slot %d | %d\n",
160 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
161 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
163 IWL_WARNING("check CCK & auto detect %d | %d\n",
166 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
167 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
169 IWL_WARNING("check TGG and auto detect %d | %d\n",
173 IWL_WARNING("Tuning to channel %d\n",
174 le16_to_cpu(rxon->channel));
177 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
184 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
185 * @priv: staging_rxon is compared to active_rxon
187 * If the RXON structure is changing enough to require a new tune,
188 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
189 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
191 static int iwl_full_rxon_required(struct iwl_priv *priv)
194 /* These items are only settable from the full RXON command */
195 if (!(iwl_is_associated(priv)) ||
196 compare_ether_addr(priv->staging_rxon.bssid_addr,
197 priv->active_rxon.bssid_addr) ||
198 compare_ether_addr(priv->staging_rxon.node_addr,
199 priv->active_rxon.node_addr) ||
200 compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
201 priv->active_rxon.wlap_bssid_addr) ||
202 (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
203 (priv->staging_rxon.channel != priv->active_rxon.channel) ||
204 (priv->staging_rxon.air_propagation !=
205 priv->active_rxon.air_propagation) ||
206 (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
207 priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
208 (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
209 priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
210 (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
213 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
214 * be updated with the RXON_ASSOC command -- however only some
215 * flag transitions are allowed using RXON_ASSOC */
217 /* Check if we are not switching bands */
218 if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
219 (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
222 /* Check if we are switching association toggle */
223 if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
224 (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
231 * iwl4965_commit_rxon - commit staging_rxon to hardware
233 * The RXON command in staging_rxon is committed to the hardware and
234 * the active_rxon structure is updated with the new data. This
235 * function correctly transitions out of the RXON_ASSOC_MSK state if
236 * a HW tune is required based on the RXON structure changes.
238 static int iwl4965_commit_rxon(struct iwl_priv *priv)
240 /* cast away the const for active_rxon in this function */
241 struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
242 DECLARE_MAC_BUF(mac);
245 !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
247 if (!iwl_is_alive(priv))
250 /* always get timestamp with Rx frame */
251 priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
252 /* allow CTS-to-self if possible. this is relevant only for
253 * 5000, but will not damage 4965 */
254 priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
256 ret = iwl4965_check_rxon_cmd(&priv->staging_rxon);
258 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
262 /* If we don't need to send a full RXON, we can use
263 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
264 * and other flags for the current radio configuration. */
265 if (!iwl_full_rxon_required(priv)) {
266 ret = iwl_send_rxon_assoc(priv);
268 IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret);
272 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
276 /* station table will be cleared */
277 priv->assoc_station_added = 0;
279 /* If we are currently associated and the new config requires
280 * an RXON_ASSOC and the new config wants the associated mask enabled,
281 * we must clear the associated from the active configuration
282 * before we apply the new config */
283 if (iwl_is_associated(priv) && new_assoc) {
284 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
285 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
287 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
288 sizeof(struct iwl_rxon_cmd),
291 /* If the mask clearing failed then we set
292 * active_rxon back to what it was previously */
294 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
295 IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret);
300 IWL_DEBUG_INFO("Sending RXON\n"
301 "* with%s RXON_FILTER_ASSOC_MSK\n"
304 (new_assoc ? "" : "out"),
305 le16_to_cpu(priv->staging_rxon.channel),
306 print_mac(mac, priv->staging_rxon.bssid_addr));
308 iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
310 /* Apply the new configuration
311 * RXON unassoc clears the station table in uCode, send it before
312 * we add the bcast station. If assoc bit is set, we will send RXON
313 * after having added the bcast and bssid station.
316 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
317 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
319 IWL_ERROR("Error setting new RXON (%d)\n", ret);
322 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
325 iwl_clear_stations_table(priv);
327 if (!priv->error_recovering)
328 priv->start_calib = 0;
330 /* Add the broadcast address so we can send broadcast frames */
331 if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
332 IWL_INVALID_STATION) {
333 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
337 /* If we have set the ASSOC_MSK and we are in BSS mode then
338 * add the IWL_AP_ID to the station rate table */
340 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
341 ret = iwl_rxon_add_station(priv,
342 priv->active_rxon.bssid_addr, 1);
343 if (ret == IWL_INVALID_STATION) {
344 IWL_ERROR("Error adding AP address for TX.\n");
347 priv->assoc_station_added = 1;
348 if (priv->default_wep_key &&
349 iwl_send_static_wepkey_cmd(priv, 0))
350 IWL_ERROR("Could not send WEP static key.\n");
353 /* Apply the new configuration
354 * RXON assoc doesn't clear the station table in uCode,
356 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
357 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
359 IWL_ERROR("Error setting new RXON (%d)\n", ret);
362 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
365 iwl_init_sensitivity(priv);
367 /* If we issue a new RXON command which required a tune then we must
368 * send a new TXPOWER command or we won't be able to Tx any frames */
369 ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
371 IWL_ERROR("Error sending TX power (%d)\n", ret);
378 void iwl4965_update_chain_flags(struct iwl_priv *priv)
381 iwl_set_rxon_chain(priv);
382 iwl4965_commit_rxon(priv);
385 static int iwl4965_send_bt_config(struct iwl_priv *priv)
387 struct iwl4965_bt_cmd bt_cmd = {
395 return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
396 sizeof(struct iwl4965_bt_cmd), &bt_cmd);
399 static void iwl_clear_free_frames(struct iwl_priv *priv)
401 struct list_head *element;
403 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
406 while (!list_empty(&priv->free_frames)) {
407 element = priv->free_frames.next;
409 kfree(list_entry(element, struct iwl_frame, list));
410 priv->frames_count--;
413 if (priv->frames_count) {
414 IWL_WARNING("%d frames still in use. Did we lose one?\n",
416 priv->frames_count = 0;
420 static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
422 struct iwl_frame *frame;
423 struct list_head *element;
424 if (list_empty(&priv->free_frames)) {
425 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
427 IWL_ERROR("Could not allocate frame!\n");
431 priv->frames_count++;
435 element = priv->free_frames.next;
437 return list_entry(element, struct iwl_frame, list);
440 static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
442 memset(frame, 0, sizeof(*frame));
443 list_add(&frame->list, &priv->free_frames);
446 static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
447 struct ieee80211_hdr *hdr,
448 const u8 *dest, int left)
450 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
451 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
452 (priv->iw_mode != NL80211_IFTYPE_AP)))
455 if (priv->ibss_beacon->len > left)
458 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
460 return priv->ibss_beacon->len;
463 static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
469 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
470 rate_mask = priv->active_rate_basic & 0xF;
472 rate_mask = priv->active_rate_basic & 0xFF0;
474 /* Find lowest valid rate */
475 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
476 i = iwl_rates[i].next_ieee) {
477 if (rate_mask & (1 << i))
478 return iwl_rates[i].plcp;
481 /* No valid rate was found. Assign the lowest one */
482 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
483 return IWL_RATE_1M_PLCP;
485 return IWL_RATE_6M_PLCP;
488 static unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
489 struct iwl_frame *frame, u8 rate)
491 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
492 unsigned int frame_size;
494 tx_beacon_cmd = &frame->u.beacon;
495 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
497 tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
498 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
500 frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame,
502 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
504 BUG_ON(frame_size > MAX_MPDU_SIZE);
505 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
507 if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
508 tx_beacon_cmd->tx.rate_n_flags =
509 iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
511 tx_beacon_cmd->tx.rate_n_flags =
512 iwl_hw_set_rate_n_flags(rate, 0);
514 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
516 TX_CMD_FLG_STA_RATE_MSK;
518 return sizeof(*tx_beacon_cmd) + frame_size;
520 static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
522 struct iwl_frame *frame;
523 unsigned int frame_size;
527 frame = iwl_get_free_frame(priv);
530 IWL_ERROR("Could not obtain free frame buffer for beacon "
535 rate = iwl4965_rate_get_lowest_plcp(priv);
537 frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
539 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
542 iwl_free_frame(priv, frame);
547 /******************************************************************************
549 * Misc. internal state and helper functions
551 ******************************************************************************/
553 static void iwl4965_ht_conf(struct iwl_priv *priv,
554 struct ieee80211_bss_conf *bss_conf)
556 struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
557 struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
558 struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
560 IWL_DEBUG_MAC80211("enter: \n");
562 iwl_conf->is_ht = bss_conf->assoc_ht;
564 if (!iwl_conf->is_ht)
567 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
568 iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
569 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
570 iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
572 iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
573 iwl_conf->max_amsdu_size =
574 !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
576 iwl_conf->supported_chan_width =
577 !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
578 iwl_conf->extension_chan_offset =
579 ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
580 /* If no above or below channel supplied disable FAT channel */
581 if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE &&
582 iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) {
583 iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE;
584 iwl_conf->supported_chan_width = 0;
587 iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
589 memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
591 iwl_conf->control_channel = ht_bss_conf->primary_channel;
592 iwl_conf->tx_chan_width =
593 !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
594 iwl_conf->ht_protection =
595 ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
596 iwl_conf->non_GF_STA_present =
597 !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
599 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
600 IWL_DEBUG_MAC80211("leave\n");
606 static void iwl_activate_qos(struct iwl_priv *priv, u8 force)
608 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
611 if (!priv->qos_data.qos_enable)
614 priv->qos_data.def_qos_parm.qos_flags = 0;
616 if (priv->qos_data.qos_cap.q_AP.queue_request &&
617 !priv->qos_data.qos_cap.q_AP.txop_request)
618 priv->qos_data.def_qos_parm.qos_flags |=
619 QOS_PARAM_FLG_TXOP_TYPE_MSK;
620 if (priv->qos_data.qos_active)
621 priv->qos_data.def_qos_parm.qos_flags |=
622 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
624 if (priv->current_ht_config.is_ht)
625 priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
627 if (force || iwl_is_associated(priv)) {
628 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
629 priv->qos_data.qos_active,
630 priv->qos_data.def_qos_parm.qos_flags);
632 iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
633 sizeof(struct iwl_qosparam_cmd),
634 &priv->qos_data.def_qos_parm, NULL);
638 #define MAX_UCODE_BEACON_INTERVAL 4096
640 static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
643 u16 beacon_factor = 0;
646 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
647 / MAX_UCODE_BEACON_INTERVAL;
648 new_val = beacon_val / beacon_factor;
650 return cpu_to_le16(new_val);
653 static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
655 u64 interval_tm_unit;
658 struct ieee80211_conf *conf = NULL;
661 conf = ieee80211_get_hw_conf(priv->hw);
663 spin_lock_irqsave(&priv->lock, flags);
664 priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32);
665 priv->rxon_timing.timestamp.dw[0] =
666 cpu_to_le32(priv->timestamp & 0xFFFFFFFF);
668 priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
670 tsf = priv->timestamp;
672 beacon_int = priv->beacon_int;
673 spin_unlock_irqrestore(&priv->lock, flags);
675 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
676 if (beacon_int == 0) {
677 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
678 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
680 priv->rxon_timing.beacon_interval =
681 cpu_to_le16(beacon_int);
682 priv->rxon_timing.beacon_interval =
683 iwl4965_adjust_beacon_interval(
684 le16_to_cpu(priv->rxon_timing.beacon_interval));
687 priv->rxon_timing.atim_window = 0;
689 priv->rxon_timing.beacon_interval =
690 iwl4965_adjust_beacon_interval(conf->beacon_int);
691 /* TODO: we need to get atim_window from upper stack
692 * for now we set to 0 */
693 priv->rxon_timing.atim_window = 0;
697 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
698 result = do_div(tsf, interval_tm_unit);
699 priv->rxon_timing.beacon_init_val =
700 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
703 ("beacon interval %d beacon timer %d beacon tim %d\n",
704 le16_to_cpu(priv->rxon_timing.beacon_interval),
705 le32_to_cpu(priv->rxon_timing.beacon_init_val),
706 le16_to_cpu(priv->rxon_timing.atim_window));
709 static void iwl_set_flags_for_band(struct iwl_priv *priv,
710 enum ieee80211_band band)
712 if (band == IEEE80211_BAND_5GHZ) {
713 priv->staging_rxon.flags &=
714 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
716 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
718 /* Copied from iwl4965_post_associate() */
719 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
720 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
722 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
724 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
725 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
727 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
728 priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
729 priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
734 * initialize rxon structure with default values from eeprom
736 static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
738 const struct iwl_channel_info *ch_info;
740 memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
742 switch (priv->iw_mode) {
743 case NL80211_IFTYPE_AP:
744 priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
747 case NL80211_IFTYPE_STATION:
748 priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
749 priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
752 case NL80211_IFTYPE_ADHOC:
753 priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
754 priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
755 priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
756 RXON_FILTER_ACCEPT_GRP_MSK;
759 case NL80211_IFTYPE_MONITOR:
760 priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
761 priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
762 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
765 IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode);
770 /* TODO: Figure out when short_preamble would be set and cache from
772 if (!hw_to_local(priv->hw)->short_preamble)
773 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
775 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
778 ch_info = iwl_get_channel_info(priv, priv->band,
779 le16_to_cpu(priv->active_rxon.channel));
782 ch_info = &priv->channel_info[0];
785 * in some case A channels are all non IBSS
786 * in this case force B/G channel
788 if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
789 !(is_channel_ibss(ch_info)))
790 ch_info = &priv->channel_info[0];
792 priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
793 priv->band = ch_info->band;
795 iwl_set_flags_for_band(priv, priv->band);
797 priv->staging_rxon.ofdm_basic_rates =
798 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
799 priv->staging_rxon.cck_basic_rates =
800 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
802 priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
803 RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
804 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
805 memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
806 priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
807 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
808 iwl_set_rxon_chain(priv);
811 static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
813 priv->iw_mode = mode;
815 iwl4965_connection_init_rx_config(priv);
816 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
818 iwl_clear_stations_table(priv);
820 /* dont commit rxon if rf-kill is on*/
821 if (!iwl_is_ready_rf(priv))
824 cancel_delayed_work(&priv->scan_check);
825 if (iwl_scan_cancel_timeout(priv, 100)) {
826 IWL_WARNING("Aborted scan still in progress after 100ms\n");
827 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
831 iwl4965_commit_rxon(priv);
836 static void iwl4965_set_rate(struct iwl_priv *priv)
838 const struct ieee80211_supported_band *hw = NULL;
839 struct ieee80211_rate *rate;
842 hw = iwl_get_hw_mode(priv, priv->band);
844 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
848 priv->active_rate = 0;
849 priv->active_rate_basic = 0;
851 for (i = 0; i < hw->n_bitrates; i++) {
852 rate = &(hw->bitrates[i]);
853 if (rate->hw_value < IWL_RATE_COUNT)
854 priv->active_rate |= (1 << rate->hw_value);
857 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
858 priv->active_rate, priv->active_rate_basic);
861 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
862 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
865 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
866 priv->staging_rxon.cck_basic_rates =
867 ((priv->active_rate_basic &
868 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
870 priv->staging_rxon.cck_basic_rates =
871 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
873 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
874 priv->staging_rxon.ofdm_basic_rates =
875 ((priv->active_rate_basic &
876 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
877 IWL_FIRST_OFDM_RATE) & 0xFF;
879 priv->staging_rxon.ofdm_basic_rates =
880 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
883 #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
885 #include "iwl-spectrum.h"
887 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
888 #define BEACON_TIME_MASK_HIGH 0xFF000000
889 #define TIME_UNIT 1024
892 * extended beacon time format
893 * time in usec will be changed into a 32-bit value in 8:24 format
894 * the high 1 byte is the beacon counts
895 * the lower 3 bytes is the time in usec within one beacon interval
898 static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
902 u32 interval = beacon_interval * 1024;
904 if (!interval || !usec)
907 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
908 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
910 return (quot << 24) + rem;
913 /* base is usually what we get from ucode with each received frame,
914 * the same as HW timer counter counting down
917 static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
919 u32 base_low = base & BEACON_TIME_MASK_LOW;
920 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
921 u32 interval = beacon_interval * TIME_UNIT;
922 u32 res = (base & BEACON_TIME_MASK_HIGH) +
923 (addon & BEACON_TIME_MASK_HIGH);
925 if (base_low > addon_low)
926 res += base_low - addon_low;
927 else if (base_low < addon_low) {
928 res += interval + base_low - addon_low;
933 return cpu_to_le32(res);
936 static int iwl4965_get_measurement(struct iwl_priv *priv,
937 struct ieee80211_measurement_params *params,
940 struct iwl4965_spectrum_cmd spectrum;
941 struct iwl_rx_packet *res;
942 struct iwl_host_cmd cmd = {
943 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
944 .data = (void *)&spectrum,
945 .meta.flags = CMD_WANT_SKB,
947 u32 add_time = le64_to_cpu(params->start_time);
949 int spectrum_resp_status;
950 int duration = le16_to_cpu(params->duration);
952 if (iwl_is_associated(priv))
954 iwl4965_usecs_to_beacons(
955 le64_to_cpu(params->start_time) - priv->last_tsf,
956 le16_to_cpu(priv->rxon_timing.beacon_interval));
958 memset(&spectrum, 0, sizeof(spectrum));
960 spectrum.channel_count = cpu_to_le16(1);
962 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
963 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
964 cmd.len = sizeof(spectrum);
965 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
967 if (iwl_is_associated(priv))
968 spectrum.start_time =
969 iwl4965_add_beacon_time(priv->last_beacon_time,
971 le16_to_cpu(priv->rxon_timing.beacon_interval));
973 spectrum.start_time = 0;
975 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
976 spectrum.channels[0].channel = params->channel;
977 spectrum.channels[0].type = type;
978 if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
979 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
980 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
982 rc = iwl_send_cmd_sync(priv, &cmd);
986 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
987 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
988 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
992 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
993 switch (spectrum_resp_status) {
994 case 0: /* Command will be handled */
995 if (res->u.spectrum.id != 0xff) {
997 ("Replaced existing measurement: %d\n",
999 priv->measurement_status &= ~MEASUREMENT_READY;
1001 priv->measurement_status |= MEASUREMENT_ACTIVE;
1005 case 1: /* Command will not be handled */
1010 dev_kfree_skb_any(cmd.meta.u.skb);
1016 /******************************************************************************
1018 * Generic RX handler implementations
1020 ******************************************************************************/
1021 static void iwl_rx_reply_alive(struct iwl_priv *priv,
1022 struct iwl_rx_mem_buffer *rxb)
1024 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1025 struct iwl_alive_resp *palive;
1026 struct delayed_work *pwork;
1028 palive = &pkt->u.alive_frame;
1030 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
1032 palive->is_valid, palive->ver_type,
1033 palive->ver_subtype);
1035 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
1036 IWL_DEBUG_INFO("Initialization Alive received.\n");
1037 memcpy(&priv->card_alive_init,
1038 &pkt->u.alive_frame,
1039 sizeof(struct iwl_init_alive_resp));
1040 pwork = &priv->init_alive_start;
1042 IWL_DEBUG_INFO("Runtime Alive received.\n");
1043 memcpy(&priv->card_alive, &pkt->u.alive_frame,
1044 sizeof(struct iwl_alive_resp));
1045 pwork = &priv->alive_start;
1048 /* We delay the ALIVE response by 5ms to
1049 * give the HW RF Kill time to activate... */
1050 if (palive->is_valid == UCODE_VALID_OK)
1051 queue_delayed_work(priv->workqueue, pwork,
1052 msecs_to_jiffies(5));
1054 IWL_WARNING("uCode did not respond OK.\n");
1057 static void iwl4965_rx_reply_error(struct iwl_priv *priv,
1058 struct iwl_rx_mem_buffer *rxb)
1060 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1062 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
1063 "seq 0x%04X ser 0x%08X\n",
1064 le32_to_cpu(pkt->u.err_resp.error_type),
1065 get_cmd_string(pkt->u.err_resp.cmd_id),
1066 pkt->u.err_resp.cmd_id,
1067 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
1068 le32_to_cpu(pkt->u.err_resp.error_info));
1071 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1073 static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
1075 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1076 struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
1077 struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
1078 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
1079 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
1080 rxon->channel = csa->channel;
1081 priv->staging_rxon.channel = csa->channel;
1084 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv,
1085 struct iwl_rx_mem_buffer *rxb)
1087 #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
1088 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1089 struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
1091 if (!report->state) {
1092 IWL_DEBUG(IWL_DL_11H,
1093 "Spectrum Measure Notification: Start\n");
1097 memcpy(&priv->measure_report, report, sizeof(*report));
1098 priv->measurement_status |= MEASUREMENT_READY;
1102 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv,
1103 struct iwl_rx_mem_buffer *rxb)
1105 #ifdef CONFIG_IWLWIFI_DEBUG
1106 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1107 struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
1108 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
1109 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
1113 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
1114 struct iwl_rx_mem_buffer *rxb)
1116 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1117 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
1118 "notification for %s:\n",
1119 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
1120 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
1123 static void iwl4965_bg_beacon_update(struct work_struct *work)
1125 struct iwl_priv *priv =
1126 container_of(work, struct iwl_priv, beacon_update);
1127 struct sk_buff *beacon;
1129 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
1130 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
1133 IWL_ERROR("update beacon failed\n");
1137 mutex_lock(&priv->mutex);
1138 /* new beacon skb is allocated every time; dispose previous.*/
1139 if (priv->ibss_beacon)
1140 dev_kfree_skb(priv->ibss_beacon);
1142 priv->ibss_beacon = beacon;
1143 mutex_unlock(&priv->mutex);
1145 iwl4965_send_beacon_cmd(priv);
1149 * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
1151 * This callback is provided in order to send a statistics request.
1153 * This timer function is continually reset to execute within
1154 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
1155 * was received. We need to ensure we receive the statistics in order
1156 * to update the temperature used for calibrating the TXPOWER.
1158 static void iwl4965_bg_statistics_periodic(unsigned long data)
1160 struct iwl_priv *priv = (struct iwl_priv *)data;
1162 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1165 iwl_send_statistics_request(priv, CMD_ASYNC);
1168 static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
1169 struct iwl_rx_mem_buffer *rxb)
1171 #ifdef CONFIG_IWLWIFI_DEBUG
1172 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1173 struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
1174 u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
1176 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
1177 "tsf %d %d rate %d\n",
1178 le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
1179 beacon->beacon_notify_hdr.failure_frame,
1180 le32_to_cpu(beacon->ibss_mgr_status),
1181 le32_to_cpu(beacon->high_tsf),
1182 le32_to_cpu(beacon->low_tsf), rate);
1185 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
1186 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
1187 queue_work(priv->workqueue, &priv->beacon_update);
1190 /* Handle notification from uCode that card's power state is changing
1191 * due to software, hardware, or critical temperature RFKILL */
1192 static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
1193 struct iwl_rx_mem_buffer *rxb)
1195 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1196 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
1197 unsigned long status = priv->status;
1199 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
1200 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
1201 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
1203 if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
1204 RF_CARD_DISABLED)) {
1206 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1207 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1209 if (!iwl_grab_nic_access(priv)) {
1211 priv, HBUS_TARG_MBX_C,
1212 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
1214 iwl_release_nic_access(priv);
1217 if (!(flags & RXON_CARD_DISABLED)) {
1218 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
1219 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1220 if (!iwl_grab_nic_access(priv)) {
1222 priv, HBUS_TARG_MBX_C,
1223 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
1225 iwl_release_nic_access(priv);
1229 if (flags & RF_CARD_DISABLED) {
1230 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1231 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
1232 iwl_read32(priv, CSR_UCODE_DRV_GP1);
1233 if (!iwl_grab_nic_access(priv))
1234 iwl_release_nic_access(priv);
1238 if (flags & HW_CARD_DISABLED)
1239 set_bit(STATUS_RF_KILL_HW, &priv->status);
1241 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1244 if (flags & SW_CARD_DISABLED)
1245 set_bit(STATUS_RF_KILL_SW, &priv->status);
1247 clear_bit(STATUS_RF_KILL_SW, &priv->status);
1249 if (!(flags & RXON_CARD_DISABLED))
1250 iwl_scan_cancel(priv);
1252 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
1253 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
1254 (test_bit(STATUS_RF_KILL_SW, &status) !=
1255 test_bit(STATUS_RF_KILL_SW, &priv->status)))
1256 queue_work(priv->workqueue, &priv->rf_kill);
1258 wake_up_interruptible(&priv->wait_command_queue);
1261 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
1264 unsigned long flags;
1266 spin_lock_irqsave(&priv->lock, flags);
1267 ret = iwl_grab_nic_access(priv);
1271 if (src == IWL_PWR_SRC_VAUX) {
1273 ret = pci_read_config_dword(priv->pci_dev, PCI_CFG_POWER_SOURCE,
1276 if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT)
1277 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
1278 APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
1279 ~APMG_PS_CTRL_MSK_PWR_SRC);
1281 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
1282 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
1283 ~APMG_PS_CTRL_MSK_PWR_SRC);
1286 iwl_release_nic_access(priv);
1288 spin_unlock_irqrestore(&priv->lock, flags);
1293 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
1295 * Setup the RX handlers for each of the reply types sent from the uCode
1298 * This function chains into the hardware specific files for them to setup
1299 * any hardware specific handlers as well.
1301 static void iwl_setup_rx_handlers(struct iwl_priv *priv)
1303 priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
1304 priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
1305 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
1306 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
1307 iwl4965_rx_spectrum_measure_notif;
1308 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
1309 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
1310 iwl4965_rx_pm_debug_statistics_notif;
1311 priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
1314 * The same handler is used for both the REPLY to a discrete
1315 * statistics request from the host as well as for the periodic
1316 * statistics notifications (after received beacons) from the uCode.
1318 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics;
1319 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
1321 iwl_setup_rx_scan_handlers(priv);
1323 /* status change handler */
1324 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
1326 priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
1327 iwl_rx_missed_beacon_notif;
1329 priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
1330 priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
1332 priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
1333 /* Set up hardware specific Rx handlers */
1334 priv->cfg->ops->lib->rx_handler_setup(priv);
1338 * this should be called while priv->lock is locked
1340 static void __iwl_rx_replenish(struct iwl_priv *priv)
1342 iwl_rx_allocate(priv);
1343 iwl_rx_queue_restock(priv);
1348 * iwl_rx_handle - Main entry function for receiving responses from uCode
1350 * Uses the priv->rx_handlers callback function array to invoke
1351 * the appropriate handlers, including command responses,
1352 * frame-received notifications, and other notifications.
1354 void iwl_rx_handle(struct iwl_priv *priv)
1356 struct iwl_rx_mem_buffer *rxb;
1357 struct iwl_rx_packet *pkt;
1358 struct iwl_rx_queue *rxq = &priv->rxq;
1361 unsigned long flags;
1365 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1366 * buffer that the driver may process (last buffer filled by ucode). */
1367 r = priv->cfg->ops->lib->shared_mem_rx_idx(priv);
1370 /* Rx interrupt, but nothing sent from uCode */
1372 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i);
1374 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
1378 rxb = rxq->queue[i];
1380 /* If an RXB doesn't have a Rx queue slot associated with it,
1381 * then a bug has been introduced in the queue refilling
1382 * routines -- catch it here */
1383 BUG_ON(rxb == NULL);
1385 rxq->queue[i] = NULL;
1387 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
1388 priv->hw_params.rx_buf_size,
1389 PCI_DMA_FROMDEVICE);
1390 pkt = (struct iwl_rx_packet *)rxb->skb->data;
1392 /* Reclaim a command buffer only if this packet is a response
1393 * to a (driver-originated) command.
1394 * If the packet (e.g. Rx frame) originated from uCode,
1395 * there is no command buffer to reclaim.
1396 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1397 * but apparently a few don't get set; catch them here. */
1398 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
1399 (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
1400 (pkt->hdr.cmd != REPLY_RX) &&
1401 (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
1402 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
1403 (pkt->hdr.cmd != REPLY_TX);
1405 /* Based on type of command response or notification,
1406 * handle those that need handling via function in
1407 * rx_handlers table. See iwl4965_setup_rx_handlers() */
1408 if (priv->rx_handlers[pkt->hdr.cmd]) {
1409 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r,
1410 i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
1411 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
1413 /* No handling needed */
1414 IWL_DEBUG(IWL_DL_RX,
1415 "r %d i %d No handler needed for %s, 0x%02x\n",
1416 r, i, get_cmd_string(pkt->hdr.cmd),
1421 /* Invoke any callbacks, transfer the skb to caller, and
1422 * fire off the (possibly) blocking iwl_send_cmd()
1423 * as we reclaim the driver command queue */
1424 if (rxb && rxb->skb)
1425 iwl_tx_cmd_complete(priv, rxb);
1427 IWL_WARNING("Claim null rxb?\n");
1430 /* For now we just don't re-use anything. We can tweak this
1431 * later to try and re-use notification packets and SKBs that
1432 * fail to Rx correctly */
1433 if (rxb->skb != NULL) {
1434 priv->alloc_rxb_skb--;
1435 dev_kfree_skb_any(rxb->skb);
1439 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
1440 priv->hw_params.rx_buf_size,
1441 PCI_DMA_FROMDEVICE);
1442 spin_lock_irqsave(&rxq->lock, flags);
1443 list_add_tail(&rxb->list, &priv->rxq.rx_used);
1444 spin_unlock_irqrestore(&rxq->lock, flags);
1445 i = (i + 1) & RX_QUEUE_MASK;
1446 /* If there are a lot of unused frames,
1447 * restock the Rx queue so ucode wont assert. */
1452 __iwl_rx_replenish(priv);
1458 /* Backtrack one entry */
1460 iwl_rx_queue_restock(priv);
1463 #ifdef CONFIG_IWLWIFI_DEBUG
1464 static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
1466 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
1467 DECLARE_MAC_BUF(mac);
1469 IWL_DEBUG_RADIO("RX CONFIG:\n");
1470 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
1471 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
1472 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
1473 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
1474 le32_to_cpu(rxon->filter_flags));
1475 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
1476 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
1477 rxon->ofdm_basic_rates);
1478 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
1479 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
1480 print_mac(mac, rxon->node_addr));
1481 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
1482 print_mac(mac, rxon->bssid_addr));
1483 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
1487 static void iwl4965_enable_interrupts(struct iwl_priv *priv)
1489 IWL_DEBUG_ISR("Enabling interrupts\n");
1490 set_bit(STATUS_INT_ENABLED, &priv->status);
1491 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
1494 /* call this function to flush any scheduled tasklet */
1495 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
1497 /* wait to make sure we flush pedding tasklet*/
1498 synchronize_irq(priv->pci_dev->irq);
1499 tasklet_kill(&priv->irq_tasklet);
1502 static inline void iwl4965_disable_interrupts(struct iwl_priv *priv)
1504 clear_bit(STATUS_INT_ENABLED, &priv->status);
1506 /* disable interrupts from uCode/NIC to host */
1507 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1509 /* acknowledge/clear/reset any interrupts still pending
1510 * from uCode or flow handler (Rx/Tx DMA) */
1511 iwl_write32(priv, CSR_INT, 0xffffffff);
1512 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
1513 IWL_DEBUG_ISR("Disabled interrupts\n");
1518 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
1520 static void iwl4965_irq_handle_error(struct iwl_priv *priv)
1522 /* Set the FW error flag -- cleared on iwl4965_down */
1523 set_bit(STATUS_FW_ERROR, &priv->status);
1525 /* Cancel currently queued command. */
1526 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
1528 #ifdef CONFIG_IWLWIFI_DEBUG
1529 if (priv->debug_level & IWL_DL_FW_ERRORS) {
1530 iwl_dump_nic_error_log(priv);
1531 iwl_dump_nic_event_log(priv);
1532 iwl4965_print_rx_config_cmd(priv);
1536 wake_up_interruptible(&priv->wait_command_queue);
1538 /* Keep the restart process from trying to send host
1539 * commands by clearing the INIT status bit */
1540 clear_bit(STATUS_READY, &priv->status);
1542 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1543 IWL_DEBUG(IWL_DL_FW_ERRORS,
1544 "Restarting adapter due to uCode error.\n");
1546 if (iwl_is_associated(priv)) {
1547 memcpy(&priv->recovery_rxon, &priv->active_rxon,
1548 sizeof(priv->recovery_rxon));
1549 priv->error_recovering = 1;
1551 if (priv->cfg->mod_params->restart_fw)
1552 queue_work(priv->workqueue, &priv->restart);
1556 static void iwl4965_error_recovery(struct iwl_priv *priv)
1558 unsigned long flags;
1560 memcpy(&priv->staging_rxon, &priv->recovery_rxon,
1561 sizeof(priv->staging_rxon));
1562 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1563 iwl4965_commit_rxon(priv);
1565 iwl_rxon_add_station(priv, priv->bssid, 1);
1567 spin_lock_irqsave(&priv->lock, flags);
1568 priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
1569 priv->error_recovering = 0;
1570 spin_unlock_irqrestore(&priv->lock, flags);
1573 static void iwl4965_irq_tasklet(struct iwl_priv *priv)
1575 u32 inta, handled = 0;
1577 unsigned long flags;
1578 #ifdef CONFIG_IWLWIFI_DEBUG
1582 spin_lock_irqsave(&priv->lock, flags);
1584 /* Ack/clear/reset pending uCode interrupts.
1585 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1586 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1587 inta = iwl_read32(priv, CSR_INT);
1588 iwl_write32(priv, CSR_INT, inta);
1590 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1591 * Any new interrupts that happen after this, either while we're
1592 * in this tasklet, or later, will show up in next ISR/tasklet. */
1593 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1594 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
1596 #ifdef CONFIG_IWLWIFI_DEBUG
1597 if (priv->debug_level & IWL_DL_ISR) {
1598 /* just for debug */
1599 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1600 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1601 inta, inta_mask, inta_fh);
1605 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1606 * atomic, make sure that inta covers all the interrupts that
1607 * we've discovered, even if FH interrupt came in just after
1608 * reading CSR_INT. */
1609 if (inta_fh & CSR49_FH_INT_RX_MASK)
1610 inta |= CSR_INT_BIT_FH_RX;
1611 if (inta_fh & CSR49_FH_INT_TX_MASK)
1612 inta |= CSR_INT_BIT_FH_TX;
1614 /* Now service all interrupt bits discovered above. */
1615 if (inta & CSR_INT_BIT_HW_ERR) {
1616 IWL_ERROR("Microcode HW error detected. Restarting.\n");
1618 /* Tell the device to stop sending interrupts */
1619 iwl4965_disable_interrupts(priv);
1621 iwl4965_irq_handle_error(priv);
1623 handled |= CSR_INT_BIT_HW_ERR;
1625 spin_unlock_irqrestore(&priv->lock, flags);
1630 #ifdef CONFIG_IWLWIFI_DEBUG
1631 if (priv->debug_level & (IWL_DL_ISR)) {
1632 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1633 if (inta & CSR_INT_BIT_SCD)
1634 IWL_DEBUG_ISR("Scheduler finished to transmit "
1635 "the frame/frames.\n");
1637 /* Alive notification via Rx interrupt will do the real work */
1638 if (inta & CSR_INT_BIT_ALIVE)
1639 IWL_DEBUG_ISR("Alive interrupt\n");
1642 /* Safely ignore these bits for debug checks below */
1643 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1645 /* HW RF KILL switch toggled */
1646 if (inta & CSR_INT_BIT_RF_KILL) {
1648 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
1649 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
1652 IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n",
1653 hw_rf_kill ? "disable radio":"enable radio");
1655 /* driver only loads ucode once setting the interface up.
1656 * the driver as well won't allow loading if RFKILL is set
1657 * therefore no need to restart the driver from this handler
1659 if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status))
1660 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1662 handled |= CSR_INT_BIT_RF_KILL;
1665 /* Chip got too hot and stopped itself */
1666 if (inta & CSR_INT_BIT_CT_KILL) {
1667 IWL_ERROR("Microcode CT kill error detected.\n");
1668 handled |= CSR_INT_BIT_CT_KILL;
1671 /* Error detected by uCode */
1672 if (inta & CSR_INT_BIT_SW_ERR) {
1673 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
1675 iwl4965_irq_handle_error(priv);
1676 handled |= CSR_INT_BIT_SW_ERR;
1679 /* uCode wakes up after power-down sleep */
1680 if (inta & CSR_INT_BIT_WAKEUP) {
1681 IWL_DEBUG_ISR("Wakeup interrupt\n");
1682 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
1683 iwl_txq_update_write_ptr(priv, &priv->txq[0]);
1684 iwl_txq_update_write_ptr(priv, &priv->txq[1]);
1685 iwl_txq_update_write_ptr(priv, &priv->txq[2]);
1686 iwl_txq_update_write_ptr(priv, &priv->txq[3]);
1687 iwl_txq_update_write_ptr(priv, &priv->txq[4]);
1688 iwl_txq_update_write_ptr(priv, &priv->txq[5]);
1690 handled |= CSR_INT_BIT_WAKEUP;
1693 /* All uCode command responses, including Tx command responses,
1694 * Rx "responses" (frame-received notification), and other
1695 * notifications from uCode come through here*/
1696 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1697 iwl_rx_handle(priv);
1698 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1701 if (inta & CSR_INT_BIT_FH_TX) {
1702 IWL_DEBUG_ISR("Tx interrupt\n");
1703 handled |= CSR_INT_BIT_FH_TX;
1704 /* FH finished to write, send event */
1705 priv->ucode_write_complete = 1;
1706 wake_up_interruptible(&priv->wait_command_queue);
1709 if (inta & ~handled)
1710 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
1712 if (inta & ~CSR_INI_SET_MASK) {
1713 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
1714 inta & ~CSR_INI_SET_MASK);
1715 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
1718 /* Re-enable all interrupts */
1719 /* only Re-enable if diabled by irq */
1720 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1721 iwl4965_enable_interrupts(priv);
1723 #ifdef CONFIG_IWLWIFI_DEBUG
1724 if (priv->debug_level & (IWL_DL_ISR)) {
1725 inta = iwl_read32(priv, CSR_INT);
1726 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1727 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1728 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1729 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
1732 spin_unlock_irqrestore(&priv->lock, flags);
1735 static irqreturn_t iwl4965_isr(int irq, void *data)
1737 struct iwl_priv *priv = data;
1738 u32 inta, inta_mask;
1743 spin_lock(&priv->lock);
1745 /* Disable (but don't clear!) interrupts here to avoid
1746 * back-to-back ISRs and sporadic interrupts from our NIC.
1747 * If we have something to service, the tasklet will re-enable ints.
1748 * If we *don't* have something, we'll re-enable before leaving here. */
1749 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
1750 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1752 /* Discover which interrupts are active/pending */
1753 inta = iwl_read32(priv, CSR_INT);
1754 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1756 /* Ignore interrupt if there's nothing in NIC to service.
1757 * This may be due to IRQ shared with another device,
1758 * or due to sporadic interrupts thrown from our NIC. */
1759 if (!inta && !inta_fh) {
1760 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
1764 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
1765 /* Hardware disappeared. It might have already raised
1767 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
1771 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1772 inta, inta_mask, inta_fh);
1774 inta &= ~CSR_INT_BIT_SCD;
1776 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
1777 if (likely(inta || inta_fh))
1778 tasklet_schedule(&priv->irq_tasklet);
1781 spin_unlock(&priv->lock);
1785 /* re-enable interrupts here since we don't have anything to service. */
1786 /* only Re-enable if diabled by irq */
1787 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1788 iwl4965_enable_interrupts(priv);
1789 spin_unlock(&priv->lock);
1793 /******************************************************************************
1795 * uCode download functions
1797 ******************************************************************************/
1799 static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
1801 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
1802 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
1803 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1804 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
1805 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1806 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
1809 static void iwl4965_nic_start(struct iwl_priv *priv)
1811 /* Remove all resets to allow NIC to operate */
1812 iwl_write32(priv, CSR_RESET, 0);
1817 * iwl4965_read_ucode - Read uCode images from disk file.
1819 * Copy into buffers for card to fetch via bus-mastering
1821 static int iwl4965_read_ucode(struct iwl_priv *priv)
1823 struct iwl_ucode *ucode;
1825 const struct firmware *ucode_raw;
1826 const char *name = priv->cfg->fw_name;
1829 u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
1831 /* Ask kernel firmware_class module to get the boot firmware off disk.
1832 * request_firmware() is synchronous, file is in memory on return. */
1833 ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
1835 IWL_ERROR("%s firmware file req failed: Reason %d\n",
1840 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
1841 name, ucode_raw->size);
1843 /* Make sure that we got at least our header! */
1844 if (ucode_raw->size < sizeof(*ucode)) {
1845 IWL_ERROR("File size way too small!\n");
1850 /* Data from ucode file: header followed by uCode images */
1851 ucode = (void *)ucode_raw->data;
1853 ver = le32_to_cpu(ucode->ver);
1854 inst_size = le32_to_cpu(ucode->inst_size);
1855 data_size = le32_to_cpu(ucode->data_size);
1856 init_size = le32_to_cpu(ucode->init_size);
1857 init_data_size = le32_to_cpu(ucode->init_data_size);
1858 boot_size = le32_to_cpu(ucode->boot_size);
1860 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
1861 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
1863 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
1865 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
1867 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
1869 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
1872 /* Verify size of file vs. image size info in file's header */
1873 if (ucode_raw->size < sizeof(*ucode) +
1874 inst_size + data_size + init_size +
1875 init_data_size + boot_size) {
1877 IWL_DEBUG_INFO("uCode file size %d too small\n",
1878 (int)ucode_raw->size);
1883 /* Verify that uCode images will fit in card's SRAM */
1884 if (inst_size > priv->hw_params.max_inst_size) {
1885 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
1891 if (data_size > priv->hw_params.max_data_size) {
1892 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
1897 if (init_size > priv->hw_params.max_inst_size) {
1899 ("uCode init instr len %d too large to fit in\n",
1904 if (init_data_size > priv->hw_params.max_data_size) {
1906 ("uCode init data len %d too large to fit in\n",
1911 if (boot_size > priv->hw_params.max_bsm_size) {
1913 ("uCode boot instr len %d too large to fit in\n",
1919 /* Allocate ucode buffers for card's bus-master loading ... */
1921 /* Runtime instructions and 2 copies of data:
1922 * 1) unmodified from disk
1923 * 2) backup cache for save/restore during power-downs */
1924 priv->ucode_code.len = inst_size;
1925 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
1927 priv->ucode_data.len = data_size;
1928 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
1930 priv->ucode_data_backup.len = data_size;
1931 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1933 /* Initialization instructions and data */
1934 if (init_size && init_data_size) {
1935 priv->ucode_init.len = init_size;
1936 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
1938 priv->ucode_init_data.len = init_data_size;
1939 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1941 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
1945 /* Bootstrap (instructions only, no data) */
1947 priv->ucode_boot.len = boot_size;
1948 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
1950 if (!priv->ucode_boot.v_addr)
1954 /* Copy images into buffers for card's bus-master reads ... */
1956 /* Runtime instructions (first block of data in file) */
1957 src = &ucode->data[0];
1958 len = priv->ucode_code.len;
1959 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
1960 memcpy(priv->ucode_code.v_addr, src, len);
1961 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
1962 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
1964 /* Runtime data (2nd block)
1965 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
1966 src = &ucode->data[inst_size];
1967 len = priv->ucode_data.len;
1968 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
1969 memcpy(priv->ucode_data.v_addr, src, len);
1970 memcpy(priv->ucode_data_backup.v_addr, src, len);
1972 /* Initialization instructions (3rd block) */
1974 src = &ucode->data[inst_size + data_size];
1975 len = priv->ucode_init.len;
1976 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
1978 memcpy(priv->ucode_init.v_addr, src, len);
1981 /* Initialization data (4th block) */
1982 if (init_data_size) {
1983 src = &ucode->data[inst_size + data_size + init_size];
1984 len = priv->ucode_init_data.len;
1985 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
1987 memcpy(priv->ucode_init_data.v_addr, src, len);
1990 /* Bootstrap instructions (5th block) */
1991 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
1992 len = priv->ucode_boot.len;
1993 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len);
1994 memcpy(priv->ucode_boot.v_addr, src, len);
1996 /* We have our copies now, allow OS release its copies */
1997 release_firmware(ucode_raw);
2001 IWL_ERROR("failed to allocate pci memory\n");
2003 iwl4965_dealloc_ucode_pci(priv);
2006 release_firmware(ucode_raw);
2013 * iwl_alive_start - called after REPLY_ALIVE notification received
2014 * from protocol/runtime uCode (initialization uCode's
2015 * Alive gets handled by iwl_init_alive_start()).
2017 static void iwl_alive_start(struct iwl_priv *priv)
2021 IWL_DEBUG_INFO("Runtime Alive received.\n");
2023 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
2024 /* We had an error bringing up the hardware, so take it
2025 * all the way back down so we can try again */
2026 IWL_DEBUG_INFO("Alive failed.\n");
2030 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2031 * This is a paranoid check, because we would not have gotten the
2032 * "runtime" alive if code weren't properly loaded. */
2033 if (iwl_verify_ucode(priv)) {
2034 /* Runtime instruction load was bad;
2035 * take it all the way back down so we can try again */
2036 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
2040 iwl_clear_stations_table(priv);
2041 ret = priv->cfg->ops->lib->alive_notify(priv);
2043 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
2048 /* After the ALIVE response, we can send host commands to 4965 uCode */
2049 set_bit(STATUS_ALIVE, &priv->status);
2051 if (iwl_is_rfkill(priv))
2054 ieee80211_wake_queues(priv->hw);
2056 priv->active_rate = priv->rates_mask;
2057 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
2059 if (iwl_is_associated(priv)) {
2060 struct iwl_rxon_cmd *active_rxon =
2061 (struct iwl_rxon_cmd *)&priv->active_rxon;
2063 memcpy(&priv->staging_rxon, &priv->active_rxon,
2064 sizeof(priv->staging_rxon));
2065 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2067 /* Initialize our rx_config data */
2068 iwl4965_connection_init_rx_config(priv);
2069 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2072 /* Configure Bluetooth device coexistence support */
2073 iwl4965_send_bt_config(priv);
2075 iwl_reset_run_time_calib(priv);
2077 /* Configure the adapter for unassociated operation */
2078 iwl4965_commit_rxon(priv);
2080 /* At this point, the NIC is initialized and operational */
2081 iwl_rf_kill_ct_config(priv);
2083 iwl_leds_register(priv);
2085 IWL_DEBUG_INFO("ALIVE processing complete.\n");
2086 set_bit(STATUS_READY, &priv->status);
2087 wake_up_interruptible(&priv->wait_command_queue);
2089 if (priv->error_recovering)
2090 iwl4965_error_recovery(priv);
2092 iwl_power_update_mode(priv, 1);
2093 ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
2095 if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
2096 iwl4965_set_mode(priv, priv->iw_mode);
2101 queue_work(priv->workqueue, &priv->restart);
2104 static void iwl_cancel_deferred_work(struct iwl_priv *priv);
2106 static void __iwl4965_down(struct iwl_priv *priv)
2108 unsigned long flags;
2109 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
2111 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
2114 set_bit(STATUS_EXIT_PENDING, &priv->status);
2116 iwl_leds_unregister(priv);
2118 iwl_clear_stations_table(priv);
2120 /* Unblock any waiting calls */
2121 wake_up_interruptible_all(&priv->wait_command_queue);
2123 /* Wipe out the EXIT_PENDING status bit if we are not actually
2124 * exiting the module */
2126 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2128 /* stop and reset the on-board processor */
2129 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
2131 /* tell the device to stop sending interrupts */
2132 spin_lock_irqsave(&priv->lock, flags);
2133 iwl4965_disable_interrupts(priv);
2134 spin_unlock_irqrestore(&priv->lock, flags);
2135 iwl_synchronize_irq(priv);
2137 if (priv->mac80211_registered)
2138 ieee80211_stop_queues(priv->hw);
2140 /* If we have not previously called iwl4965_init() then
2141 * clear all bits but the RF Kill and SUSPEND bits and return */
2142 if (!iwl_is_init(priv)) {
2143 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2145 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
2147 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2148 STATUS_GEO_CONFIGURED |
2149 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
2151 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2152 STATUS_EXIT_PENDING;
2156 /* ...otherwise clear out all the status bits but the RF Kill and
2157 * SUSPEND bits and continue taking the NIC down. */
2158 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2160 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
2162 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2163 STATUS_GEO_CONFIGURED |
2164 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
2166 test_bit(STATUS_FW_ERROR, &priv->status) <<
2168 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2169 STATUS_EXIT_PENDING;
2171 spin_lock_irqsave(&priv->lock, flags);
2172 iwl_clear_bit(priv, CSR_GP_CNTRL,
2173 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
2174 spin_unlock_irqrestore(&priv->lock, flags);
2176 iwl_txq_ctx_stop(priv);
2179 spin_lock_irqsave(&priv->lock, flags);
2180 if (!iwl_grab_nic_access(priv)) {
2181 iwl_write_prph(priv, APMG_CLK_DIS_REG,
2182 APMG_CLK_VAL_DMA_CLK_RQT);
2183 iwl_release_nic_access(priv);
2185 spin_unlock_irqrestore(&priv->lock, flags);
2189 /* FIXME: apm_ops.suspend(priv) */
2190 if (exit_pending || test_bit(STATUS_IN_SUSPEND, &priv->status))
2191 priv->cfg->ops->lib->apm_ops.stop(priv);
2193 priv->cfg->ops->lib->apm_ops.reset(priv);
2194 priv->cfg->ops->lib->free_shared_mem(priv);
2197 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
2199 if (priv->ibss_beacon)
2200 dev_kfree_skb(priv->ibss_beacon);
2201 priv->ibss_beacon = NULL;
2203 /* clear out any free frames */
2204 iwl_clear_free_frames(priv);
2207 static void iwl4965_down(struct iwl_priv *priv)
2209 mutex_lock(&priv->mutex);
2210 __iwl4965_down(priv);
2211 mutex_unlock(&priv->mutex);
2213 iwl_cancel_deferred_work(priv);
2216 #define MAX_HW_RESTARTS 5
2218 static int __iwl4965_up(struct iwl_priv *priv)
2223 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2224 IWL_WARNING("Exit pending; will not bring the NIC up\n");
2228 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
2229 IWL_ERROR("ucode not available for device bringup\n");
2233 /* If platform's RF_KILL switch is NOT set to KILL */
2234 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2235 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2237 set_bit(STATUS_RF_KILL_HW, &priv->status);
2239 if (iwl_is_rfkill(priv)) {
2240 iwl4965_enable_interrupts(priv);
2241 IWL_WARNING("Radio disabled by %s RF Kill switch\n",
2242 test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW");
2246 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2248 ret = priv->cfg->ops->lib->alloc_shared_mem(priv);
2250 IWL_ERROR("Unable to allocate shared memory\n");
2254 ret = iwl_hw_nic_init(priv);
2256 IWL_ERROR("Unable to init nic\n");
2260 /* make sure rfkill handshake bits are cleared */
2261 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2262 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
2263 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2265 /* clear (again), then enable host interrupts */
2266 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2267 iwl4965_enable_interrupts(priv);
2269 /* really make sure rfkill handshake bits are cleared */
2270 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2271 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2273 /* Copy original ucode data image from disk into backup cache.
2274 * This will be used to initialize the on-board processor's
2275 * data SRAM for a clean start when the runtime program first loads. */
2276 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
2277 priv->ucode_data.len);
2279 for (i = 0; i < MAX_HW_RESTARTS; i++) {
2281 iwl_clear_stations_table(priv);
2283 /* load bootstrap state machine,
2284 * load bootstrap program into processor's memory,
2285 * prepare to load the "initialize" uCode */
2286 ret = priv->cfg->ops->lib->load_ucode(priv);
2289 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret);
2293 /* Clear out the uCode error bit if it is set */
2294 clear_bit(STATUS_FW_ERROR, &priv->status);
2296 /* start card; "initialize" will load runtime ucode */
2297 iwl4965_nic_start(priv);
2299 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
2304 set_bit(STATUS_EXIT_PENDING, &priv->status);
2305 __iwl4965_down(priv);
2306 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2308 /* tried to restart and config the device for as long as our
2309 * patience could withstand */
2310 IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
2315 /*****************************************************************************
2317 * Workqueue callbacks
2319 *****************************************************************************/
2321 static void iwl_bg_init_alive_start(struct work_struct *data)
2323 struct iwl_priv *priv =
2324 container_of(data, struct iwl_priv, init_alive_start.work);
2326 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2329 mutex_lock(&priv->mutex);
2330 priv->cfg->ops->lib->init_alive_start(priv);
2331 mutex_unlock(&priv->mutex);
2334 static void iwl_bg_alive_start(struct work_struct *data)
2336 struct iwl_priv *priv =
2337 container_of(data, struct iwl_priv, alive_start.work);
2339 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2342 mutex_lock(&priv->mutex);
2343 iwl_alive_start(priv);
2344 mutex_unlock(&priv->mutex);
2347 static void iwl4965_bg_rf_kill(struct work_struct *work)
2349 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
2351 wake_up_interruptible(&priv->wait_command_queue);
2353 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2356 mutex_lock(&priv->mutex);
2358 if (!iwl_is_rfkill(priv)) {
2359 IWL_DEBUG(IWL_DL_RF_KILL,
2360 "HW and/or SW RF Kill no longer active, restarting "
2362 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
2363 queue_work(priv->workqueue, &priv->restart);
2365 /* make sure mac80211 stop sending Tx frame */
2366 if (priv->mac80211_registered)
2367 ieee80211_stop_queues(priv->hw);
2369 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
2370 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2371 "disabled by SW switch\n");
2373 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
2374 "Kill switch must be turned off for "
2375 "wireless networking to work.\n");
2377 mutex_unlock(&priv->mutex);
2378 iwl_rfkill_set_hw_state(priv);
2381 static void iwl4965_bg_set_monitor(struct work_struct *work)
2383 struct iwl_priv *priv = container_of(work,
2384 struct iwl_priv, set_monitor);
2387 IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
2389 mutex_lock(&priv->mutex);
2391 ret = iwl4965_set_mode(priv, NL80211_IFTYPE_MONITOR);
2395 IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
2397 IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret);
2400 mutex_unlock(&priv->mutex);
2403 static void iwl_bg_run_time_calib_work(struct work_struct *work)
2405 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2406 run_time_calib_work);
2408 mutex_lock(&priv->mutex);
2410 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
2411 test_bit(STATUS_SCANNING, &priv->status)) {
2412 mutex_unlock(&priv->mutex);
2416 if (priv->start_calib) {
2417 iwl_chain_noise_calibration(priv, &priv->statistics);
2419 iwl_sensitivity_calibration(priv, &priv->statistics);
2422 mutex_unlock(&priv->mutex);
2426 static void iwl4965_bg_up(struct work_struct *data)
2428 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
2430 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2433 mutex_lock(&priv->mutex);
2435 mutex_unlock(&priv->mutex);
2436 iwl_rfkill_set_hw_state(priv);
2439 static void iwl4965_bg_restart(struct work_struct *data)
2441 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
2443 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2447 queue_work(priv->workqueue, &priv->up);
2450 static void iwl4965_bg_rx_replenish(struct work_struct *data)
2452 struct iwl_priv *priv =
2453 container_of(data, struct iwl_priv, rx_replenish);
2455 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2458 mutex_lock(&priv->mutex);
2459 iwl_rx_replenish(priv);
2460 mutex_unlock(&priv->mutex);
2463 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2465 static void iwl4965_post_associate(struct iwl_priv *priv)
2467 struct ieee80211_conf *conf = NULL;
2469 DECLARE_MAC_BUF(mac);
2470 unsigned long flags;
2472 if (priv->iw_mode == NL80211_IFTYPE_AP) {
2473 IWL_ERROR("%s Should not be called in AP mode\n", __func__);
2477 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
2479 print_mac(mac, priv->active_rxon.bssid_addr));
2482 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2486 if (!priv->vif || !priv->is_open)
2489 iwl_power_cancel_timeout(priv);
2490 iwl_scan_cancel_timeout(priv, 200);
2492 conf = ieee80211_get_hw_conf(priv->hw);
2494 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2495 iwl4965_commit_rxon(priv);
2497 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
2498 iwl4965_setup_rxon_timing(priv);
2499 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
2500 sizeof(priv->rxon_timing), &priv->rxon_timing);
2502 IWL_WARNING("REPLY_RXON_TIMING failed - "
2503 "Attempting to continue.\n");
2505 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2507 iwl_set_rxon_ht(priv, &priv->current_ht_config);
2509 iwl_set_rxon_chain(priv);
2510 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
2512 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
2513 priv->assoc_id, priv->beacon_int);
2515 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2516 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
2518 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
2520 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
2521 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
2522 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
2524 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
2526 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
2527 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
2531 iwl4965_commit_rxon(priv);
2533 switch (priv->iw_mode) {
2534 case NL80211_IFTYPE_STATION:
2537 case NL80211_IFTYPE_ADHOC:
2539 /* assume default assoc id */
2542 iwl_rxon_add_station(priv, priv->bssid, 0);
2543 iwl4965_send_beacon_cmd(priv);
2548 IWL_ERROR("%s Should not be called in %d mode\n",
2549 __func__, priv->iw_mode);
2553 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
2554 priv->assoc_station_added = 1;
2556 spin_lock_irqsave(&priv->lock, flags);
2557 iwl_activate_qos(priv, 0);
2558 spin_unlock_irqrestore(&priv->lock, flags);
2560 /* the chain noise calibration will enabled PM upon completion
2561 * If chain noise has already been run, then we need to enable
2562 * power management here */
2563 if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
2564 iwl_power_enable_management(priv);
2566 /* Enable Rx differential gain and sensitivity calibrations */
2567 iwl_chain_noise_reset(priv);
2568 priv->start_calib = 1;
2572 static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
2574 static void iwl_bg_scan_completed(struct work_struct *work)
2576 struct iwl_priv *priv =
2577 container_of(work, struct iwl_priv, scan_completed);
2579 IWL_DEBUG_SCAN("SCAN complete scan\n");
2581 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2584 if (test_bit(STATUS_CONF_PENDING, &priv->status))
2585 iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
2587 ieee80211_scan_completed(priv->hw);
2589 /* Since setting the TXPOWER may have been deferred while
2590 * performing the scan, fire one off */
2591 mutex_lock(&priv->mutex);
2592 iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
2593 mutex_unlock(&priv->mutex);
2596 /*****************************************************************************
2598 * mac80211 entry point functions
2600 *****************************************************************************/
2602 #define UCODE_READY_TIMEOUT (4 * HZ)
2604 static int iwl4965_mac_start(struct ieee80211_hw *hw)
2606 struct iwl_priv *priv = hw->priv;
2610 IWL_DEBUG_MAC80211("enter\n");
2612 if (pci_enable_device(priv->pci_dev)) {
2613 IWL_ERROR("Fail to pci_enable_device\n");
2616 pci_restore_state(priv->pci_dev);
2617 pci_enable_msi(priv->pci_dev);
2619 /* enable interrupts if needed: hw bug w/a */
2620 pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd);
2621 if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
2622 pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
2623 pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd);
2626 ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED,
2629 IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq);
2630 goto out_disable_msi;
2633 /* we should be verifying the device is ready to be opened */
2634 mutex_lock(&priv->mutex);
2636 memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
2637 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
2638 * ucode filename and max sizes are card-specific. */
2640 if (!priv->ucode_code.len) {
2641 ret = iwl4965_read_ucode(priv);
2643 IWL_ERROR("Could not read microcode: %d\n", ret);
2644 mutex_unlock(&priv->mutex);
2645 goto out_release_irq;
2649 ret = __iwl4965_up(priv);
2651 mutex_unlock(&priv->mutex);
2653 iwl_rfkill_set_hw_state(priv);
2656 goto out_release_irq;
2658 if (iwl_is_rfkill(priv))
2661 IWL_DEBUG_INFO("Start UP work done.\n");
2663 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
2666 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2667 * mac80211 will not be run successfully. */
2668 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
2669 test_bit(STATUS_READY, &priv->status),
2670 UCODE_READY_TIMEOUT);
2672 if (!test_bit(STATUS_READY, &priv->status)) {
2673 IWL_ERROR("START_ALIVE timeout after %dms.\n",
2674 jiffies_to_msecs(UCODE_READY_TIMEOUT));
2676 goto out_release_irq;
2682 IWL_DEBUG_MAC80211("leave\n");
2686 free_irq(priv->pci_dev->irq, priv);
2688 pci_disable_msi(priv->pci_dev);
2689 pci_disable_device(priv->pci_dev);
2691 IWL_DEBUG_MAC80211("leave - failed\n");
2695 static void iwl4965_mac_stop(struct ieee80211_hw *hw)
2697 struct iwl_priv *priv = hw->priv;
2699 IWL_DEBUG_MAC80211("enter\n");
2701 if (!priv->is_open) {
2702 IWL_DEBUG_MAC80211("leave - skip\n");
2708 if (iwl_is_ready_rf(priv)) {
2709 /* stop mac, cancel any scan request and clear
2710 * RXON_FILTER_ASSOC_MSK BIT
2712 mutex_lock(&priv->mutex);
2713 iwl_scan_cancel_timeout(priv, 100);
2714 mutex_unlock(&priv->mutex);
2719 flush_workqueue(priv->workqueue);
2720 free_irq(priv->pci_dev->irq, priv);
2721 pci_disable_msi(priv->pci_dev);
2722 pci_save_state(priv->pci_dev);
2723 pci_disable_device(priv->pci_dev);
2725 IWL_DEBUG_MAC80211("leave\n");
2728 static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
2730 struct iwl_priv *priv = hw->priv;
2732 IWL_DEBUG_MACDUMP("enter\n");
2734 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
2735 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
2737 if (iwl_tx_skb(priv, skb))
2738 dev_kfree_skb_any(skb);
2740 IWL_DEBUG_MACDUMP("leave\n");
2744 static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
2745 struct ieee80211_if_init_conf *conf)
2747 struct iwl_priv *priv = hw->priv;
2748 unsigned long flags;
2749 DECLARE_MAC_BUF(mac);
2751 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
2754 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
2758 spin_lock_irqsave(&priv->lock, flags);
2759 priv->vif = conf->vif;
2761 spin_unlock_irqrestore(&priv->lock, flags);
2763 mutex_lock(&priv->mutex);
2765 if (conf->mac_addr) {
2766 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
2767 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
2770 if (iwl4965_set_mode(priv, conf->type) == -EAGAIN)
2771 /* we are not ready, will run again when ready */
2772 set_bit(STATUS_MODE_PENDING, &priv->status);
2774 mutex_unlock(&priv->mutex);
2776 IWL_DEBUG_MAC80211("leave\n");
2781 * iwl4965_mac_config - mac80211 config callback
2783 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2784 * be set inappropriately and the driver currently sets the hardware up to
2785 * use it whenever needed.
2787 static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
2789 struct iwl_priv *priv = hw->priv;
2790 const struct iwl_channel_info *ch_info;
2791 unsigned long flags;
2795 mutex_lock(&priv->mutex);
2796 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
2798 if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) {
2799 IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
2803 if (!conf->radio_enabled)
2804 iwl_radio_kill_sw_disable_radio(priv);
2806 if (!iwl_is_ready(priv)) {
2807 IWL_DEBUG_MAC80211("leave - not ready\n");
2812 if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
2813 test_bit(STATUS_SCANNING, &priv->status))) {
2814 IWL_DEBUG_MAC80211("leave - scanning\n");
2815 set_bit(STATUS_CONF_PENDING, &priv->status);
2816 mutex_unlock(&priv->mutex);
2820 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2821 ch_info = iwl_get_channel_info(priv, conf->channel->band, channel);
2822 if (!is_channel_valid(ch_info)) {
2823 IWL_DEBUG_MAC80211("leave - invalid channel\n");
2828 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2829 !is_channel_ibss(ch_info)) {
2830 IWL_ERROR("channel %d in band %d not IBSS channel\n",
2831 conf->channel->hw_value, conf->channel->band);
2836 spin_lock_irqsave(&priv->lock, flags);
2839 /* if we are switching from ht to 2.4 clear flags
2840 * from any ht related info since 2.4 does not
2842 if ((le16_to_cpu(priv->staging_rxon.channel) != channel)
2843 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
2844 && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
2847 priv->staging_rxon.flags = 0;
2849 iwl_set_rxon_channel(priv, conf->channel);
2851 iwl_set_flags_for_band(priv, conf->channel->band);
2853 /* The list of supported rates and rate mask can be different
2854 * for each band; since the band may have changed, reset
2855 * the rate mask to what mac80211 lists */
2856 iwl4965_set_rate(priv);
2858 spin_unlock_irqrestore(&priv->lock, flags);
2860 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
2861 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
2862 iwl4965_hw_channel_switch(priv, conf->channel);
2867 if (!conf->radio_enabled) {
2868 IWL_DEBUG_MAC80211("leave - radio disabled\n");
2872 if (iwl_is_rfkill(priv)) {
2873 IWL_DEBUG_MAC80211("leave - RF kill\n");
2878 if (conf->flags & IEEE80211_CONF_PS)
2879 ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3);
2881 ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM);
2883 IWL_DEBUG_MAC80211("Error setting power level\n");
2885 IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n",
2886 priv->tx_power_user_lmt, conf->power_level);
2888 iwl_set_tx_power(priv, conf->power_level, false);
2890 iwl4965_set_rate(priv);
2892 if (memcmp(&priv->active_rxon,
2893 &priv->staging_rxon, sizeof(priv->staging_rxon)))
2894 iwl4965_commit_rxon(priv);
2896 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
2898 IWL_DEBUG_MAC80211("leave\n");
2901 clear_bit(STATUS_CONF_PENDING, &priv->status);
2902 mutex_unlock(&priv->mutex);
2906 static void iwl4965_config_ap(struct iwl_priv *priv)
2909 unsigned long flags;
2911 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2914 /* The following should be done only at AP bring up */
2915 if (!(iwl_is_associated(priv))) {
2917 /* RXON - unassoc (to set timing command) */
2918 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2919 iwl4965_commit_rxon(priv);
2922 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
2923 iwl4965_setup_rxon_timing(priv);
2924 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
2925 sizeof(priv->rxon_timing), &priv->rxon_timing);
2927 IWL_WARNING("REPLY_RXON_TIMING failed - "
2928 "Attempting to continue.\n");
2930 iwl_set_rxon_chain(priv);
2932 /* FIXME: what should be the assoc_id for AP? */
2933 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
2934 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2935 priv->staging_rxon.flags |=
2936 RXON_FLG_SHORT_PREAMBLE_MSK;
2938 priv->staging_rxon.flags &=
2939 ~RXON_FLG_SHORT_PREAMBLE_MSK;
2941 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
2942 if (priv->assoc_capability &
2943 WLAN_CAPABILITY_SHORT_SLOT_TIME)
2944 priv->staging_rxon.flags |=
2945 RXON_FLG_SHORT_SLOT_MSK;
2947 priv->staging_rxon.flags &=
2948 ~RXON_FLG_SHORT_SLOT_MSK;
2950 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
2951 priv->staging_rxon.flags &=
2952 ~RXON_FLG_SHORT_SLOT_MSK;
2954 /* restore RXON assoc */
2955 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2956 iwl4965_commit_rxon(priv);
2957 spin_lock_irqsave(&priv->lock, flags);
2958 iwl_activate_qos(priv, 1);
2959 spin_unlock_irqrestore(&priv->lock, flags);
2960 iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
2962 iwl4965_send_beacon_cmd(priv);
2964 /* FIXME - we need to add code here to detect a totally new
2965 * configuration, reset the AP, unassoc, rxon timing, assoc,
2966 * clear sta table, add BCAST sta... */
2970 static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
2972 static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
2973 struct ieee80211_vif *vif,
2974 struct ieee80211_if_conf *conf)
2976 struct iwl_priv *priv = hw->priv;
2977 DECLARE_MAC_BUF(mac);
2978 unsigned long flags;
2984 if (priv->vif != vif) {
2985 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
2989 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2990 conf->changed & IEEE80211_IFCC_BEACON) {
2991 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
2994 rc = iwl4965_mac_beacon_update(hw, beacon);
2999 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
3000 (!conf->ssid_len)) {
3002 ("Leaving in AP mode because HostAPD is not ready.\n");
3006 if (!iwl_is_alive(priv))
3009 mutex_lock(&priv->mutex);
3012 IWL_DEBUG_MAC80211("bssid: %s\n",
3013 print_mac(mac, conf->bssid));
3016 * very dubious code was here; the probe filtering flag is never set:
3018 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
3019 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
3022 if (priv->iw_mode == NL80211_IFTYPE_AP) {
3024 conf->bssid = priv->mac_addr;
3025 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
3026 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
3027 print_mac(mac, conf->bssid));
3029 if (priv->ibss_beacon)
3030 dev_kfree_skb(priv->ibss_beacon);
3032 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
3035 if (iwl_is_rfkill(priv))
3038 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
3039 !is_multicast_ether_addr(conf->bssid)) {
3040 /* If there is currently a HW scan going on in the background
3041 * then we need to cancel it else the RXON below will fail. */
3042 if (iwl_scan_cancel_timeout(priv, 100)) {
3043 IWL_WARNING("Aborted scan still in progress "
3045 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
3046 mutex_unlock(&priv->mutex);
3049 memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
3051 /* TODO: Audit driver for usage of these members and see
3052 * if mac80211 deprecates them (priv->bssid looks like it
3053 * shouldn't be there, but I haven't scanned the IBSS code
3054 * to verify) - jpk */
3055 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
3057 if (priv->iw_mode == NL80211_IFTYPE_AP)
3058 iwl4965_config_ap(priv);
3060 rc = iwl4965_commit_rxon(priv);
3061 if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
3062 iwl_rxon_add_station(
3063 priv, priv->active_rxon.bssid_addr, 1);
3067 iwl_scan_cancel_timeout(priv, 100);
3068 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3069 iwl4965_commit_rxon(priv);
3073 spin_lock_irqsave(&priv->lock, flags);
3074 if (!conf->ssid_len)
3075 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
3077 memcpy(priv->essid, conf->ssid, conf->ssid_len);
3079 priv->essid_len = conf->ssid_len;
3080 spin_unlock_irqrestore(&priv->lock, flags);
3082 IWL_DEBUG_MAC80211("leave\n");
3083 mutex_unlock(&priv->mutex);
3088 static void iwl4965_configure_filter(struct ieee80211_hw *hw,
3089 unsigned int changed_flags,
3090 unsigned int *total_flags,
3091 int mc_count, struct dev_addr_list *mc_list)
3093 struct iwl_priv *priv = hw->priv;
3095 if (changed_flags & (*total_flags) & FIF_OTHER_BSS) {
3096 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
3097 NL80211_IFTYPE_MONITOR,
3098 changed_flags, *total_flags);
3099 /* queue work 'cuz mac80211 is holding a lock which
3100 * prevents us from issuing (synchronous) f/w cmds */
3101 queue_work(priv->workqueue, &priv->set_monitor);
3103 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI |
3104 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
3107 static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
3108 struct ieee80211_if_init_conf *conf)
3110 struct iwl_priv *priv = hw->priv;
3112 IWL_DEBUG_MAC80211("enter\n");
3114 mutex_lock(&priv->mutex);
3116 if (iwl_is_ready_rf(priv)) {
3117 iwl_scan_cancel_timeout(priv, 100);
3118 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3119 iwl4965_commit_rxon(priv);
3121 if (priv->vif == conf->vif) {
3123 memset(priv->bssid, 0, ETH_ALEN);
3124 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
3125 priv->essid_len = 0;
3127 mutex_unlock(&priv->mutex);
3129 IWL_DEBUG_MAC80211("leave\n");
3133 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
3134 static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
3135 struct ieee80211_vif *vif,
3136 struct ieee80211_bss_conf *bss_conf,
3139 struct iwl_priv *priv = hw->priv;
3141 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
3143 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
3144 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
3145 bss_conf->use_short_preamble);
3146 if (bss_conf->use_short_preamble)
3147 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
3149 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
3152 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
3153 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
3154 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
3155 priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
3157 priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
3160 if (changes & BSS_CHANGED_HT) {
3161 IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
3162 iwl4965_ht_conf(priv, bss_conf);
3163 iwl_set_rxon_chain(priv);
3166 if (changes & BSS_CHANGED_ASSOC) {
3167 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
3168 /* This should never happen as this function should
3169 * never be called from interrupt context. */
3170 if (WARN_ON_ONCE(in_interrupt()))
3172 if (bss_conf->assoc) {
3173 priv->assoc_id = bss_conf->aid;
3174 priv->beacon_int = bss_conf->beacon_int;
3175 priv->power_data.dtim_period = bss_conf->dtim_period;
3176 priv->timestamp = bss_conf->timestamp;
3177 priv->assoc_capability = bss_conf->assoc_capability;
3179 /* we have just associated, don't start scan too early
3180 * leave time for EAPOL exchange to complete
3182 priv->next_scan_jiffies = jiffies +
3183 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
3184 mutex_lock(&priv->mutex);
3185 iwl4965_post_associate(priv);
3186 mutex_unlock(&priv->mutex);
3189 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
3191 } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
3192 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
3193 iwl_send_rxon_assoc(priv);
3198 static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len)
3200 unsigned long flags;
3201 struct iwl_priv *priv = hw->priv;
3204 IWL_DEBUG_MAC80211("enter\n");
3206 mutex_lock(&priv->mutex);
3207 spin_lock_irqsave(&priv->lock, flags);
3209 if (!iwl_is_ready_rf(priv)) {
3211 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
3215 if (priv->iw_mode == NL80211_IFTYPE_AP) { /* APs don't scan */
3217 IWL_ERROR("ERROR: APs don't scan\n");
3221 /* We don't schedule scan within next_scan_jiffies period.
3222 * Avoid scanning during possible EAPOL exchange, return
3223 * success immediately.
3225 if (priv->next_scan_jiffies &&
3226 time_after(priv->next_scan_jiffies, jiffies)) {
3227 IWL_DEBUG_SCAN("scan rejected: within next scan period\n");
3228 queue_work(priv->workqueue, &priv->scan_completed);
3233 /* if we just finished scan ask for delay */
3234 if (iwl_is_associated(priv) && priv->last_scan_jiffies &&
3235 time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, jiffies)) {
3236 IWL_DEBUG_SCAN("scan rejected: within previous scan period\n");
3237 queue_work(priv->workqueue, &priv->scan_completed);
3243 priv->one_direct_scan = 1;
3244 priv->direct_ssid_len = min_t(u8, ssid_len, IW_ESSID_MAX_SIZE);
3245 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
3247 priv->one_direct_scan = 0;
3250 ret = iwl_scan_initiate(priv);
3252 IWL_DEBUG_MAC80211("leave\n");
3255 spin_unlock_irqrestore(&priv->lock, flags);
3256 mutex_unlock(&priv->mutex);
3261 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
3262 struct ieee80211_key_conf *keyconf, const u8 *addr,
3263 u32 iv32, u16 *phase1key)
3265 struct iwl_priv *priv = hw->priv;
3266 u8 sta_id = IWL_INVALID_STATION;
3267 unsigned long flags;
3268 __le16 key_flags = 0;
3270 DECLARE_MAC_BUF(mac);
3272 IWL_DEBUG_MAC80211("enter\n");
3274 sta_id = iwl_find_station(priv, addr);
3275 if (sta_id == IWL_INVALID_STATION) {
3276 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
3277 print_mac(mac, addr));
3281 iwl_scan_cancel_timeout(priv, 100);
3283 key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
3284 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
3285 key_flags &= ~STA_KEY_FLG_INVALID;
3287 if (sta_id == priv->hw_params.bcast_sta_id)
3288 key_flags |= STA_KEY_MULTICAST_MSK;
3290 spin_lock_irqsave(&priv->sta_lock, flags);
3292 priv->stations[sta_id].sta.key.key_flags = key_flags;
3293 priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
3295 for (i = 0; i < 5; i++)
3296 priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
3297 cpu_to_le16(phase1key[i]);
3299 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
3300 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
3302 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
3304 spin_unlock_irqrestore(&priv->sta_lock, flags);
3306 IWL_DEBUG_MAC80211("leave\n");
3309 static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3310 const u8 *local_addr, const u8 *addr,
3311 struct ieee80211_key_conf *key)
3313 struct iwl_priv *priv = hw->priv;
3314 DECLARE_MAC_BUF(mac);
3316 u8 sta_id = IWL_INVALID_STATION;
3317 u8 is_default_wep_key = 0;
3319 IWL_DEBUG_MAC80211("enter\n");
3321 if (priv->hw_params.sw_crypto) {
3322 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
3326 if (is_zero_ether_addr(addr))
3327 /* only support pairwise keys */
3330 sta_id = iwl_find_station(priv, addr);
3331 if (sta_id == IWL_INVALID_STATION) {
3332 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
3333 print_mac(mac, addr));
3338 mutex_lock(&priv->mutex);
3339 iwl_scan_cancel_timeout(priv, 100);
3340 mutex_unlock(&priv->mutex);
3342 /* If we are getting WEP group key and we didn't receive any key mapping
3343 * so far, we are in legacy wep mode (group key only), otherwise we are
3345 * In legacy wep mode, we use another host command to the uCode */
3346 if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
3347 priv->iw_mode != NL80211_IFTYPE_AP) {
3349 is_default_wep_key = !priv->key_mapping_key;
3351 is_default_wep_key =
3352 (key->hw_key_idx == HW_KEY_DEFAULT);
3357 if (is_default_wep_key)
3358 ret = iwl_set_default_wep_key(priv, key);
3360 ret = iwl_set_dynamic_key(priv, key, sta_id);
3362 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
3365 if (is_default_wep_key)
3366 ret = iwl_remove_default_wep_key(priv, key);
3368 ret = iwl_remove_dynamic_key(priv, key, sta_id);
3370 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
3376 IWL_DEBUG_MAC80211("leave\n");
3381 static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
3382 const struct ieee80211_tx_queue_params *params)
3384 struct iwl_priv *priv = hw->priv;
3385 unsigned long flags;
3388 IWL_DEBUG_MAC80211("enter\n");
3390 if (!iwl_is_ready_rf(priv)) {
3391 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3395 if (queue >= AC_NUM) {
3396 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
3400 if (!priv->qos_data.qos_enable) {
3401 priv->qos_data.qos_active = 0;
3402 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
3405 q = AC_NUM - 1 - queue;
3407 spin_lock_irqsave(&priv->lock, flags);
3409 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
3410 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
3411 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
3412 priv->qos_data.def_qos_parm.ac[q].edca_txop =
3413 cpu_to_le16((params->txop * 32));
3415 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
3416 priv->qos_data.qos_active = 1;
3418 if (priv->iw_mode == NL80211_IFTYPE_AP)
3419 iwl_activate_qos(priv, 1);
3420 else if (priv->assoc_id && iwl_is_associated(priv))
3421 iwl_activate_qos(priv, 0);
3423 spin_unlock_irqrestore(&priv->lock, flags);
3425 IWL_DEBUG_MAC80211("leave\n");
3429 static int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
3430 enum ieee80211_ampdu_mlme_action action,
3431 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
3433 struct iwl_priv *priv = hw->priv;
3434 DECLARE_MAC_BUF(mac);
3436 IWL_DEBUG_HT("A-MPDU action on addr %s tid %d\n",
3437 print_mac(mac, sta->addr), tid);
3439 if (!(priv->cfg->sku & IWL_SKU_N))
3443 case IEEE80211_AMPDU_RX_START:
3444 IWL_DEBUG_HT("start Rx\n");
3445 return iwl_rx_agg_start(priv, sta->addr, tid, *ssn);
3446 case IEEE80211_AMPDU_RX_STOP:
3447 IWL_DEBUG_HT("stop Rx\n");
3448 return iwl_rx_agg_stop(priv, sta->addr, tid);
3449 case IEEE80211_AMPDU_TX_START:
3450 IWL_DEBUG_HT("start Tx\n");
3451 return iwl_tx_agg_start(priv, sta->addr, tid, ssn);
3452 case IEEE80211_AMPDU_TX_STOP:
3453 IWL_DEBUG_HT("stop Tx\n");
3454 return iwl_tx_agg_stop(priv, sta->addr, tid);
3456 IWL_DEBUG_HT("unknown\n");
3462 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
3463 struct ieee80211_tx_queue_stats *stats)
3465 struct iwl_priv *priv = hw->priv;
3467 struct iwl_tx_queue *txq;
3468 struct iwl_queue *q;
3469 unsigned long flags;
3471 IWL_DEBUG_MAC80211("enter\n");
3473 if (!iwl_is_ready_rf(priv)) {
3474 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3478 spin_lock_irqsave(&priv->lock, flags);
3480 for (i = 0; i < AC_NUM; i++) {
3481 txq = &priv->txq[i];
3483 avail = iwl_queue_space(q);
3485 stats[i].len = q->n_window - avail;
3486 stats[i].limit = q->n_window - q->high_mark;
3487 stats[i].count = q->n_window;
3490 spin_unlock_irqrestore(&priv->lock, flags);
3492 IWL_DEBUG_MAC80211("leave\n");
3497 static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
3498 struct ieee80211_low_level_stats *stats)
3500 struct iwl_priv *priv = hw->priv;
3503 IWL_DEBUG_MAC80211("enter\n");
3504 IWL_DEBUG_MAC80211("leave\n");
3509 static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
3511 struct iwl_priv *priv = hw->priv;
3512 unsigned long flags;
3514 mutex_lock(&priv->mutex);
3515 IWL_DEBUG_MAC80211("enter\n");
3517 spin_lock_irqsave(&priv->lock, flags);
3518 memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
3519 spin_unlock_irqrestore(&priv->lock, flags);
3521 iwl_reset_qos(priv);
3523 spin_lock_irqsave(&priv->lock, flags);
3525 priv->assoc_capability = 0;
3526 priv->assoc_station_added = 0;
3528 /* new association get rid of ibss beacon skb */
3529 if (priv->ibss_beacon)
3530 dev_kfree_skb(priv->ibss_beacon);
3532 priv->ibss_beacon = NULL;
3534 priv->beacon_int = priv->hw->conf.beacon_int;
3535 priv->timestamp = 0;
3536 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
3537 priv->beacon_int = 0;
3539 spin_unlock_irqrestore(&priv->lock, flags);
3541 if (!iwl_is_ready_rf(priv)) {
3542 IWL_DEBUG_MAC80211("leave - not ready\n");
3543 mutex_unlock(&priv->mutex);
3547 /* we are restarting association process
3548 * clear RXON_FILTER_ASSOC_MSK bit
3550 if (priv->iw_mode != NL80211_IFTYPE_AP) {
3551 iwl_scan_cancel_timeout(priv, 100);
3552 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3553 iwl4965_commit_rxon(priv);
3556 iwl_power_update_mode(priv, 0);
3558 /* Per mac80211.h: This is only used in IBSS mode... */
3559 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
3561 /* switch to CAM during association period.
3562 * the ucode will block any association/authentication
3563 * frome during assiciation period if it can not hear
3564 * the AP because of PM. the timer enable PM back is
3565 * association do not complete
3567 if (priv->hw->conf.channel->flags & (IEEE80211_CHAN_PASSIVE_SCAN |
3568 IEEE80211_CHAN_RADAR))
3569 iwl_power_disable_management(priv, 3000);
3571 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
3572 mutex_unlock(&priv->mutex);
3576 iwl4965_set_rate(priv);
3578 mutex_unlock(&priv->mutex);
3580 IWL_DEBUG_MAC80211("leave\n");
3583 static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
3585 struct iwl_priv *priv = hw->priv;
3586 unsigned long flags;
3589 mutex_lock(&priv->mutex);
3590 IWL_DEBUG_MAC80211("enter\n");
3592 if (!iwl_is_ready_rf(priv)) {
3593 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3594 mutex_unlock(&priv->mutex);
3598 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
3599 IWL_DEBUG_MAC80211("leave - not IBSS\n");
3600 mutex_unlock(&priv->mutex);
3604 spin_lock_irqsave(&priv->lock, flags);
3606 if (priv->ibss_beacon)
3607 dev_kfree_skb(priv->ibss_beacon);
3609 priv->ibss_beacon = skb;
3612 timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
3613 priv->timestamp = le64_to_cpu(timestamp);
3615 IWL_DEBUG_MAC80211("leave\n");
3616 spin_unlock_irqrestore(&priv->lock, flags);
3618 iwl_reset_qos(priv);
3620 iwl4965_post_associate(priv);
3622 mutex_unlock(&priv->mutex);
3627 /*****************************************************************************
3631 *****************************************************************************/
3633 #ifdef CONFIG_IWLWIFI_DEBUG
3636 * The following adds a new attribute to the sysfs representation
3637 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
3638 * used for controlling the debug level.
3640 * See the level definitions in iwl for details.
3643 static ssize_t show_debug_level(struct device *d,
3644 struct device_attribute *attr, char *buf)
3646 struct iwl_priv *priv = d->driver_data;
3648 return sprintf(buf, "0x%08X\n", priv->debug_level);
3650 static ssize_t store_debug_level(struct device *d,
3651 struct device_attribute *attr,
3652 const char *buf, size_t count)
3654 struct iwl_priv *priv = d->driver_data;
3658 ret = strict_strtoul(buf, 0, &val);
3660 printk(KERN_INFO DRV_NAME
3661 ": %s is not in hex or decimal form.\n", buf);
3663 priv->debug_level = val;
3665 return strnlen(buf, count);
3668 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
3669 show_debug_level, store_debug_level);
3672 #endif /* CONFIG_IWLWIFI_DEBUG */
3675 static ssize_t show_version(struct device *d,
3676 struct device_attribute *attr, char *buf)
3678 struct iwl_priv *priv = d->driver_data;
3679 struct iwl_alive_resp *palive = &priv->card_alive;
3683 if (palive->is_valid)
3684 pos += sprintf(buf + pos,
3685 "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
3686 "fw type: 0x%01X 0x%01X\n",
3687 palive->ucode_major, palive->ucode_minor,
3688 palive->sw_rev[0], palive->sw_rev[1],
3689 palive->ver_type, palive->ver_subtype);
3691 pos += sprintf(buf + pos, "fw not loaded\n");
3694 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
3695 pos += sprintf(buf + pos, "EEPROM version: 0x%x\n",
3698 pos += sprintf(buf + pos, "EEPROM not initialzed\n");
3704 static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
3706 static ssize_t show_temperature(struct device *d,
3707 struct device_attribute *attr, char *buf)
3709 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3711 if (!iwl_is_alive(priv))
3714 return sprintf(buf, "%d\n", priv->temperature);
3717 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
3719 static ssize_t show_tx_power(struct device *d,
3720 struct device_attribute *attr, char *buf)
3722 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3723 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
3726 static ssize_t store_tx_power(struct device *d,
3727 struct device_attribute *attr,
3728 const char *buf, size_t count)
3730 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3734 ret = strict_strtoul(buf, 10, &val);
3736 printk(KERN_INFO DRV_NAME
3737 ": %s is not in decimal form.\n", buf);
3739 iwl_set_tx_power(priv, val, false);
3744 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
3746 static ssize_t show_flags(struct device *d,
3747 struct device_attribute *attr, char *buf)
3749 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3751 return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
3754 static ssize_t store_flags(struct device *d,
3755 struct device_attribute *attr,
3756 const char *buf, size_t count)
3758 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3761 int ret = strict_strtoul(buf, 0, &val);
3766 mutex_lock(&priv->mutex);
3767 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
3768 /* Cancel any currently running scans... */
3769 if (iwl_scan_cancel_timeout(priv, 100))
3770 IWL_WARNING("Could not cancel scan.\n");
3772 IWL_DEBUG_INFO("Commit rxon.flags = 0x%04X\n", flags);
3773 priv->staging_rxon.flags = cpu_to_le32(flags);
3774 iwl4965_commit_rxon(priv);
3777 mutex_unlock(&priv->mutex);
3782 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
3784 static ssize_t show_filter_flags(struct device *d,
3785 struct device_attribute *attr, char *buf)
3787 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3789 return sprintf(buf, "0x%04X\n",
3790 le32_to_cpu(priv->active_rxon.filter_flags));
3793 static ssize_t store_filter_flags(struct device *d,
3794 struct device_attribute *attr,
3795 const char *buf, size_t count)
3797 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3800 int ret = strict_strtoul(buf, 0, &val);
3803 filter_flags = (u32)val;
3805 mutex_lock(&priv->mutex);
3806 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
3807 /* Cancel any currently running scans... */
3808 if (iwl_scan_cancel_timeout(priv, 100))
3809 IWL_WARNING("Could not cancel scan.\n");
3811 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
3812 "0x%04X\n", filter_flags);
3813 priv->staging_rxon.filter_flags =
3814 cpu_to_le32(filter_flags);
3815 iwl4965_commit_rxon(priv);
3818 mutex_unlock(&priv->mutex);
3823 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
3824 store_filter_flags);
3826 #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
3828 static ssize_t show_measurement(struct device *d,
3829 struct device_attribute *attr, char *buf)
3831 struct iwl_priv *priv = dev_get_drvdata(d);
3832 struct iwl4965_spectrum_notification measure_report;
3833 u32 size = sizeof(measure_report), len = 0, ofs = 0;
3834 u8 *data = (u8 *)&measure_report;
3835 unsigned long flags;
3837 spin_lock_irqsave(&priv->lock, flags);
3838 if (!(priv->measurement_status & MEASUREMENT_READY)) {
3839 spin_unlock_irqrestore(&priv->lock, flags);
3842 memcpy(&measure_report, &priv->measure_report, size);
3843 priv->measurement_status = 0;
3844 spin_unlock_irqrestore(&priv->lock, flags);
3846 while (size && (PAGE_SIZE - len)) {
3847 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3848 PAGE_SIZE - len, 1);
3850 if (PAGE_SIZE - len)
3854 size -= min(size, 16U);
3860 static ssize_t store_measurement(struct device *d,
3861 struct device_attribute *attr,
3862 const char *buf, size_t count)
3864 struct iwl_priv *priv = dev_get_drvdata(d);
3865 struct ieee80211_measurement_params params = {
3866 .channel = le16_to_cpu(priv->active_rxon.channel),
3867 .start_time = cpu_to_le64(priv->last_tsf),
3868 .duration = cpu_to_le16(1),
3870 u8 type = IWL_MEASURE_BASIC;
3876 strncpy(buffer, buf, min(sizeof(buffer), count));
3877 channel = simple_strtoul(p, NULL, 0);
3879 params.channel = channel;
3882 while (*p && *p != ' ')
3885 type = simple_strtoul(p + 1, NULL, 0);
3888 IWL_DEBUG_INFO("Invoking measurement of type %d on "
3889 "channel %d (for '%s')\n", type, params.channel, buf);
3890 iwl4965_get_measurement(priv, ¶ms, type);
3895 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
3896 show_measurement, store_measurement);
3897 #endif /* CONFIG_IWLAGN_SPECTRUM_MEASUREMENT */
3899 static ssize_t store_retry_rate(struct device *d,
3900 struct device_attribute *attr,
3901 const char *buf, size_t count)
3903 struct iwl_priv *priv = dev_get_drvdata(d);
3905 int ret = strict_strtol(buf, 10, &val);
3909 priv->retry_rate = (val > 0) ? val : 1;
3914 static ssize_t show_retry_rate(struct device *d,
3915 struct device_attribute *attr, char *buf)
3917 struct iwl_priv *priv = dev_get_drvdata(d);
3918 return sprintf(buf, "%d", priv->retry_rate);
3921 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
3924 static ssize_t store_power_level(struct device *d,
3925 struct device_attribute *attr,
3926 const char *buf, size_t count)
3928 struct iwl_priv *priv = dev_get_drvdata(d);
3933 mutex_lock(&priv->mutex);
3935 if (!iwl_is_ready(priv)) {
3940 ret = strict_strtoul(buf, 10, &mode);
3944 ret = iwl_power_set_user_mode(priv, mode);
3946 IWL_DEBUG_MAC80211("failed setting power mode.\n");
3952 mutex_unlock(&priv->mutex);
3956 static ssize_t show_power_level(struct device *d,
3957 struct device_attribute *attr, char *buf)
3959 struct iwl_priv *priv = dev_get_drvdata(d);
3960 int mode = priv->power_data.user_power_setting;
3961 int system = priv->power_data.system_power_setting;
3962 int level = priv->power_data.power_mode;
3966 case IWL_POWER_SYS_AUTO:
3967 p += sprintf(p, "SYSTEM:auto");
3969 case IWL_POWER_SYS_AC:
3970 p += sprintf(p, "SYSTEM:ac");
3972 case IWL_POWER_SYS_BATTERY:
3973 p += sprintf(p, "SYSTEM:battery");
3977 p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO)?"fixed":"auto");
3978 p += sprintf(p, "\tINDEX:%d", level);
3979 p += sprintf(p, "\n");
3983 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
3986 static ssize_t show_channels(struct device *d,
3987 struct device_attribute *attr, char *buf)
3990 struct iwl_priv *priv = dev_get_drvdata(d);
3991 struct ieee80211_channel *channels = NULL;
3992 const struct ieee80211_supported_band *supp_band = NULL;
3996 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
3999 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
4000 channels = supp_band->channels;
4001 count = supp_band->n_channels;
4003 len += sprintf(&buf[len],
4004 "Displaying %d channels in 2.4GHz band "
4005 "(802.11bg):\n", count);
4007 for (i = 0; i < count; i++)
4008 len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
4009 ieee80211_frequency_to_channel(
4010 channels[i].center_freq),
4011 channels[i].max_power,
4012 channels[i].flags & IEEE80211_CHAN_RADAR ?
4013 " (IEEE 802.11h required)" : "",
4014 (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
4015 || (channels[i].flags &
4016 IEEE80211_CHAN_RADAR)) ? "" :
4019 IEEE80211_CHAN_PASSIVE_SCAN ?
4020 "passive only" : "active/passive");
4022 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
4023 channels = supp_band->channels;
4024 count = supp_band->n_channels;
4026 len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
4027 "(802.11a):\n", count);
4029 for (i = 0; i < count; i++)
4030 len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
4031 ieee80211_frequency_to_channel(
4032 channels[i].center_freq),
4033 channels[i].max_power,
4034 channels[i].flags & IEEE80211_CHAN_RADAR ?
4035 " (IEEE 802.11h required)" : "",
4036 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
4037 || (channels[i].flags &
4038 IEEE80211_CHAN_RADAR)) ? "" :
4041 IEEE80211_CHAN_PASSIVE_SCAN ?
4042 "passive only" : "active/passive");
4047 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
4049 static ssize_t show_statistics(struct device *d,
4050 struct device_attribute *attr, char *buf)
4052 struct iwl_priv *priv = dev_get_drvdata(d);
4053 u32 size = sizeof(struct iwl_notif_statistics);
4054 u32 len = 0, ofs = 0;
4055 u8 *data = (u8 *)&priv->statistics;
4058 if (!iwl_is_alive(priv))
4061 mutex_lock(&priv->mutex);
4062 rc = iwl_send_statistics_request(priv, 0);
4063 mutex_unlock(&priv->mutex);
4067 "Error sending statistics request: 0x%08X\n", rc);
4071 while (size && (PAGE_SIZE - len)) {
4072 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
4073 PAGE_SIZE - len, 1);
4075 if (PAGE_SIZE - len)
4079 size -= min(size, 16U);
4085 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
4087 static ssize_t show_status(struct device *d,
4088 struct device_attribute *attr, char *buf)
4090 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4091 if (!iwl_is_alive(priv))
4093 return sprintf(buf, "0x%08x\n", (int)priv->status);
4096 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
4098 /*****************************************************************************
4100 * driver setup and teardown
4102 *****************************************************************************/
4104 static void iwl_setup_deferred_work(struct iwl_priv *priv)
4106 priv->workqueue = create_workqueue(DRV_NAME);
4108 init_waitqueue_head(&priv->wait_command_queue);
4110 INIT_WORK(&priv->up, iwl4965_bg_up);
4111 INIT_WORK(&priv->restart, iwl4965_bg_restart);
4112 INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
4113 INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
4114 INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
4115 INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
4116 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
4117 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
4118 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
4120 /* FIXME : remove when resolved PENDING */
4121 INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
4122 iwl_setup_scan_deferred_work(priv);
4123 iwl_setup_power_deferred_work(priv);
4125 if (priv->cfg->ops->lib->setup_deferred_work)
4126 priv->cfg->ops->lib->setup_deferred_work(priv);
4128 init_timer(&priv->statistics_periodic);
4129 priv->statistics_periodic.data = (unsigned long)priv;
4130 priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
4132 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
4133 iwl4965_irq_tasklet, (unsigned long)priv);
4136 static void iwl_cancel_deferred_work(struct iwl_priv *priv)
4138 if (priv->cfg->ops->lib->cancel_deferred_work)
4139 priv->cfg->ops->lib->cancel_deferred_work(priv);
4141 cancel_delayed_work_sync(&priv->init_alive_start);
4142 cancel_delayed_work(&priv->scan_check);
4143 cancel_delayed_work_sync(&priv->set_power_save);
4144 cancel_delayed_work(&priv->alive_start);
4145 cancel_work_sync(&priv->beacon_update);
4146 del_timer_sync(&priv->statistics_periodic);
4149 static struct attribute *iwl4965_sysfs_entries[] = {
4150 &dev_attr_channels.attr,
4151 &dev_attr_flags.attr,
4152 &dev_attr_filter_flags.attr,
4153 #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
4154 &dev_attr_measurement.attr,
4156 &dev_attr_power_level.attr,
4157 &dev_attr_retry_rate.attr,
4158 &dev_attr_statistics.attr,
4159 &dev_attr_status.attr,
4160 &dev_attr_temperature.attr,
4161 &dev_attr_tx_power.attr,
4162 #ifdef CONFIG_IWLWIFI_DEBUG
4163 &dev_attr_debug_level.attr,
4165 &dev_attr_version.attr,
4170 static struct attribute_group iwl4965_attribute_group = {
4171 .name = NULL, /* put in device directory */
4172 .attrs = iwl4965_sysfs_entries,
4175 static struct ieee80211_ops iwl4965_hw_ops = {
4176 .tx = iwl4965_mac_tx,
4177 .start = iwl4965_mac_start,
4178 .stop = iwl4965_mac_stop,
4179 .add_interface = iwl4965_mac_add_interface,
4180 .remove_interface = iwl4965_mac_remove_interface,
4181 .config = iwl4965_mac_config,
4182 .config_interface = iwl4965_mac_config_interface,
4183 .configure_filter = iwl4965_configure_filter,
4184 .set_key = iwl4965_mac_set_key,
4185 .update_tkip_key = iwl4965_mac_update_tkip_key,
4186 .get_stats = iwl4965_mac_get_stats,
4187 .get_tx_stats = iwl4965_mac_get_tx_stats,
4188 .conf_tx = iwl4965_mac_conf_tx,
4189 .reset_tsf = iwl4965_mac_reset_tsf,
4190 .bss_info_changed = iwl4965_bss_info_changed,
4191 .ampdu_action = iwl4965_mac_ampdu_action,
4192 .hw_scan = iwl_mac_hw_scan
4195 static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
4198 struct iwl_priv *priv;
4199 struct ieee80211_hw *hw;
4200 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
4201 unsigned long flags;
4202 DECLARE_MAC_BUF(mac);
4204 /************************
4205 * 1. Allocating HW data
4206 ************************/
4208 /* Disabling hardware scan means that mac80211 will perform scans
4209 * "the hard way", rather than using device's scan. */
4210 if (cfg->mod_params->disable_hw_scan) {
4211 if (cfg->mod_params->debug & IWL_DL_INFO)
4212 dev_printk(KERN_DEBUG, &(pdev->dev),
4213 "Disabling hw_scan\n");
4214 iwl4965_hw_ops.hw_scan = NULL;
4217 hw = iwl_alloc_all(cfg, &iwl4965_hw_ops);
4223 /* At this point both hw and priv are allocated. */
4225 SET_IEEE80211_DEV(hw, &pdev->dev);
4227 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
4229 priv->pci_dev = pdev;
4231 #ifdef CONFIG_IWLWIFI_DEBUG
4232 priv->debug_level = priv->cfg->mod_params->debug;
4233 atomic_set(&priv->restrict_refcnt, 0);
4236 /**************************
4237 * 2. Initializing PCI bus
4238 **************************/
4239 if (pci_enable_device(pdev)) {
4241 goto out_ieee80211_free_hw;
4244 pci_set_master(pdev);
4246 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
4248 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
4250 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
4252 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
4253 /* both attempts failed: */
4255 printk(KERN_WARNING "%s: No suitable DMA available.\n",
4257 goto out_pci_disable_device;
4261 err = pci_request_regions(pdev, DRV_NAME);
4263 goto out_pci_disable_device;
4265 pci_set_drvdata(pdev, priv);
4268 /***********************
4269 * 3. Read REV register
4270 ***********************/
4271 priv->hw_base = pci_iomap(pdev, 0, 0);
4272 if (!priv->hw_base) {
4274 goto out_pci_release_regions;
4277 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
4278 (unsigned long long) pci_resource_len(pdev, 0));
4279 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
4281 iwl_hw_detect(priv);
4282 printk(KERN_INFO DRV_NAME
4283 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
4284 priv->cfg->name, priv->hw_rev);
4286 /* We disable the RETRY_TIMEOUT register (0x41) to keep
4287 * PCI Tx retries from interfering with C3 CPU state */
4288 pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
4291 err = priv->cfg->ops->lib->apm_ops.init(priv);
4293 IWL_DEBUG_INFO("Failed to init APMG\n");
4299 /* Read the EEPROM */
4300 err = iwl_eeprom_init(priv);
4302 IWL_ERROR("Unable to init EEPROM\n");
4305 err = iwl_eeprom_check_version(priv);
4309 /* extract MAC Address */
4310 iwl_eeprom_get_mac(priv, priv->mac_addr);
4311 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
4312 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
4314 /************************
4315 * 5. Setup HW constants
4316 ************************/
4317 if (iwl_set_hw_params(priv)) {
4318 IWL_ERROR("failed to set hw parameters\n");
4319 goto out_free_eeprom;
4322 /*******************
4324 *******************/
4326 err = iwl_init_drv(priv);
4328 goto out_free_eeprom;
4329 /* At this point both hw and priv are initialized. */
4331 /**********************************
4332 * 7. Initialize module parameters
4333 **********************************/
4335 /* Disable radio (SW RF KILL) via parameter when loading driver */
4336 if (priv->cfg->mod_params->disable) {
4337 set_bit(STATUS_RF_KILL_SW, &priv->status);
4338 IWL_DEBUG_INFO("Radio disabled.\n");
4341 /********************
4343 ********************/
4344 spin_lock_irqsave(&priv->lock, flags);
4345 iwl4965_disable_interrupts(priv);
4346 spin_unlock_irqrestore(&priv->lock, flags);
4348 err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
4350 IWL_ERROR("failed to create sysfs device attributes\n");
4351 goto out_uninit_drv;
4355 iwl_setup_deferred_work(priv);
4356 iwl_setup_rx_handlers(priv);
4358 /********************
4360 ********************/
4361 pci_save_state(pdev);
4362 pci_disable_device(pdev);
4364 /**********************************
4365 * 10. Setup and register mac80211
4366 **********************************/
4368 err = iwl_setup_mac(priv);
4370 goto out_remove_sysfs;
4372 err = iwl_dbgfs_register(priv, DRV_NAME);
4374 IWL_ERROR("failed to create debugfs files\n");
4376 err = iwl_rfkill_init(priv);
4378 IWL_ERROR("Unable to initialize RFKILL system. "
4379 "Ignoring error: %d\n", err);
4380 iwl_power_initialize(priv);
4384 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
4386 iwl_uninit_drv(priv);
4388 iwl_eeprom_free(priv);
4390 pci_iounmap(pdev, priv->hw_base);
4391 out_pci_release_regions:
4392 pci_release_regions(pdev);
4393 pci_set_drvdata(pdev, NULL);
4394 out_pci_disable_device:
4395 pci_disable_device(pdev);
4396 out_ieee80211_free_hw:
4397 ieee80211_free_hw(priv->hw);
4402 static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
4404 struct iwl_priv *priv = pci_get_drvdata(pdev);
4405 unsigned long flags;
4410 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
4412 iwl_dbgfs_unregister(priv);
4413 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
4415 /* ieee80211_unregister_hw call wil cause iwl4965_mac_stop to
4416 * to be called and iwl4965_down since we are removing the device
4417 * we need to set STATUS_EXIT_PENDING bit.
4419 set_bit(STATUS_EXIT_PENDING, &priv->status);
4420 if (priv->mac80211_registered) {
4421 ieee80211_unregister_hw(priv->hw);
4422 priv->mac80211_registered = 0;
4427 /* make sure we flush any pending irq or
4428 * tasklet for the driver
4430 spin_lock_irqsave(&priv->lock, flags);
4431 iwl4965_disable_interrupts(priv);
4432 spin_unlock_irqrestore(&priv->lock, flags);
4434 iwl_synchronize_irq(priv);
4436 iwl_rfkill_unregister(priv);
4437 iwl4965_dealloc_ucode_pci(priv);
4440 iwl_rx_queue_free(priv, &priv->rxq);
4441 iwl_hw_txq_ctx_free(priv);
4443 iwl_clear_stations_table(priv);
4444 iwl_eeprom_free(priv);
4447 /*netif_stop_queue(dev); */
4448 flush_workqueue(priv->workqueue);
4450 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
4451 * priv->workqueue... so we can't take down the workqueue
4453 destroy_workqueue(priv->workqueue);
4454 priv->workqueue = NULL;
4456 pci_iounmap(pdev, priv->hw_base);
4457 pci_release_regions(pdev);
4458 pci_disable_device(pdev);
4459 pci_set_drvdata(pdev, NULL);
4461 iwl_uninit_drv(priv);
4463 if (priv->ibss_beacon)
4464 dev_kfree_skb(priv->ibss_beacon);
4466 ieee80211_free_hw(priv->hw);
4471 static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
4473 struct iwl_priv *priv = pci_get_drvdata(pdev);
4475 if (priv->is_open) {
4476 set_bit(STATUS_IN_SUSPEND, &priv->status);
4477 iwl4965_mac_stop(priv->hw);
4481 pci_set_power_state(pdev, PCI_D3hot);
4486 static int iwl4965_pci_resume(struct pci_dev *pdev)
4488 struct iwl_priv *priv = pci_get_drvdata(pdev);
4490 pci_set_power_state(pdev, PCI_D0);
4493 iwl4965_mac_start(priv->hw);
4495 clear_bit(STATUS_IN_SUSPEND, &priv->status);
4499 #endif /* CONFIG_PM */
4501 /*****************************************************************************
4503 * driver and module entry point
4505 *****************************************************************************/
4507 /* Hardware specific file defines the PCI IDs table for that hardware module */
4508 static struct pci_device_id iwl_hw_card_ids[] = {
4509 #ifdef CONFIG_IWL4965
4510 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
4511 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
4512 #endif /* CONFIG_IWL4965 */
4513 #ifdef CONFIG_IWL5000
4514 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)},
4515 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)},
4516 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)},
4517 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)},
4518 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)},
4519 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)},
4520 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
4521 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
4522 {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)},
4523 {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)},
4524 /* 5350 WiFi/WiMax */
4525 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)},
4526 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)},
4527 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)},
4528 #endif /* CONFIG_IWL5000 */
4531 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
4533 static struct pci_driver iwl_driver = {
4535 .id_table = iwl_hw_card_ids,
4536 .probe = iwl4965_pci_probe,
4537 .remove = __devexit_p(iwl4965_pci_remove),
4539 .suspend = iwl4965_pci_suspend,
4540 .resume = iwl4965_pci_resume,
4544 static int __init iwl4965_init(void)
4548 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
4549 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
4551 ret = iwlagn_rate_control_register();
4553 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
4557 ret = pci_register_driver(&iwl_driver);
4559 IWL_ERROR("Unable to initialize PCI module\n");
4560 goto error_register;
4566 iwlagn_rate_control_unregister();
4570 static void __exit iwl4965_exit(void)
4572 pci_unregister_driver(&iwl_driver);
4573 iwlagn_rate_control_unregister();
4576 module_exit(iwl4965_exit);
4577 module_init(iwl4965_init);