1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/version.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/mac80211.h>
46 #include <asm/div64.h>
48 #include "iwl-eeprom.h"
52 #include "iwl-helpers.h"
54 #include "iwl-calib.h"
57 /******************************************************************************
61 ******************************************************************************/
64 * module name, copyright, version, etc.
65 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
68 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
70 #ifdef CONFIG_IWLWIFI_DEBUG
76 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
82 #define DRV_VERSION IWLWIFI_VERSION VD VS
85 MODULE_DESCRIPTION(DRV_DESCRIPTION);
86 MODULE_VERSION(DRV_VERSION);
87 MODULE_AUTHOR(DRV_COPYRIGHT);
88 MODULE_LICENSE("GPL");
90 /*************** 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 * iwl4965_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 iwl4965_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.rx_chain != priv->active_rxon.rx_chain) ||
211 (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
214 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
215 * be updated with the RXON_ASSOC command -- however only some
216 * flag transitions are allowed using RXON_ASSOC */
218 /* Check if we are not switching bands */
219 if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
220 (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
223 /* Check if we are switching association toggle */
224 if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
225 (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
232 * iwl4965_commit_rxon - commit staging_rxon to hardware
234 * The RXON command in staging_rxon is committed to the hardware and
235 * the active_rxon structure is updated with the new data. This
236 * function correctly transitions out of the RXON_ASSOC_MSK state if
237 * a HW tune is required based on the RXON structure changes.
239 static int iwl4965_commit_rxon(struct iwl_priv *priv)
241 /* cast away the const for active_rxon in this function */
242 struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
243 DECLARE_MAC_BUF(mac);
246 !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
248 if (!iwl_is_alive(priv))
251 /* always get timestamp with Rx frame */
252 priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
254 ret = iwl4965_check_rxon_cmd(&priv->staging_rxon);
256 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
260 /* If we don't need to send a full RXON, we can use
261 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
262 * and other flags for the current radio configuration. */
263 if (!iwl4965_full_rxon_required(priv)) {
264 ret = iwl_send_rxon_assoc(priv);
266 IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret);
270 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
274 /* station table will be cleared */
275 priv->assoc_station_added = 0;
277 /* If we are currently associated and the new config requires
278 * an RXON_ASSOC and the new config wants the associated mask enabled,
279 * we must clear the associated from the active configuration
280 * before we apply the new config */
281 if (iwl_is_associated(priv) && new_assoc) {
282 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
283 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
285 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
286 sizeof(struct iwl_rxon_cmd),
289 /* If the mask clearing failed then we set
290 * active_rxon back to what it was previously */
292 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
293 IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret);
298 IWL_DEBUG_INFO("Sending RXON\n"
299 "* with%s RXON_FILTER_ASSOC_MSK\n"
302 (new_assoc ? "" : "out"),
303 le16_to_cpu(priv->staging_rxon.channel),
304 print_mac(mac, priv->staging_rxon.bssid_addr));
306 iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
308 /* Apply the new configuration
309 * RXON unassoc clears the station table in uCode, send it before
310 * we add the bcast station. If assoc bit is set, we will send RXON
311 * after having added the bcast and bssid station.
314 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
315 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
317 IWL_ERROR("Error setting new RXON (%d)\n", ret);
320 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
323 iwl_clear_stations_table(priv);
325 if (!priv->error_recovering)
326 priv->start_calib = 0;
328 iwl_init_sensitivity(priv);
330 /* If we issue a new RXON command which required a tune then we must
331 * send a new TXPOWER command or we won't be able to Tx any frames */
332 ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
334 IWL_ERROR("Error sending TX power (%d)\n", ret);
338 /* Add the broadcast address so we can send broadcast frames */
339 if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
340 IWL_INVALID_STATION) {
341 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
345 /* If we have set the ASSOC_MSK and we are in BSS mode then
346 * add the IWL_AP_ID to the station rate table */
348 if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
349 ret = iwl_rxon_add_station(priv,
350 priv->active_rxon.bssid_addr, 1);
351 if (ret == IWL_INVALID_STATION) {
352 IWL_ERROR("Error adding AP address for TX.\n");
355 priv->assoc_station_added = 1;
356 if (priv->default_wep_key &&
357 iwl_send_static_wepkey_cmd(priv, 0))
358 IWL_ERROR("Could not send WEP static key.\n");
361 /* Apply the new configuration
362 * RXON assoc doesn't clear the station table in uCode,
364 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
365 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
367 IWL_ERROR("Error setting new RXON (%d)\n", ret);
370 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
376 void iwl4965_update_chain_flags(struct iwl_priv *priv)
379 iwl_set_rxon_chain(priv);
380 iwl4965_commit_rxon(priv);
383 static int iwl4965_send_bt_config(struct iwl_priv *priv)
385 struct iwl4965_bt_cmd bt_cmd = {
393 return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
394 sizeof(struct iwl4965_bt_cmd), &bt_cmd);
397 static void iwl_clear_free_frames(struct iwl_priv *priv)
399 struct list_head *element;
401 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
404 while (!list_empty(&priv->free_frames)) {
405 element = priv->free_frames.next;
407 kfree(list_entry(element, struct iwl_frame, list));
408 priv->frames_count--;
411 if (priv->frames_count) {
412 IWL_WARNING("%d frames still in use. Did we lose one?\n",
414 priv->frames_count = 0;
418 static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
420 struct iwl_frame *frame;
421 struct list_head *element;
422 if (list_empty(&priv->free_frames)) {
423 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
425 IWL_ERROR("Could not allocate frame!\n");
429 priv->frames_count++;
433 element = priv->free_frames.next;
435 return list_entry(element, struct iwl_frame, list);
438 static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
440 memset(frame, 0, sizeof(*frame));
441 list_add(&frame->list, &priv->free_frames);
444 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
445 struct ieee80211_hdr *hdr,
446 const u8 *dest, int left)
449 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
450 ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
451 (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
454 if (priv->ibss_beacon->len > left)
457 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
459 return priv->ibss_beacon->len;
462 static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
468 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
469 rate_mask = priv->active_rate_basic & 0xF;
471 rate_mask = priv->active_rate_basic & 0xFF0;
473 /* Find lowest valid rate */
474 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
475 i = iwl_rates[i].next_ieee) {
476 if (rate_mask & (1 << i))
477 return iwl_rates[i].plcp;
480 /* No valid rate was found. Assign the lowest one */
481 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
482 return IWL_RATE_1M_PLCP;
484 return IWL_RATE_6M_PLCP;
487 static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
489 struct iwl_frame *frame;
490 unsigned int frame_size;
494 frame = iwl_get_free_frame(priv);
497 IWL_ERROR("Could not obtain free frame buffer for beacon "
502 rate = iwl4965_rate_get_lowest_plcp(priv);
504 frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
506 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
509 iwl_free_frame(priv, frame);
514 /******************************************************************************
516 * Misc. internal state and helper functions
518 ******************************************************************************/
520 static void iwl4965_ht_conf(struct iwl_priv *priv,
521 struct ieee80211_bss_conf *bss_conf)
523 struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
524 struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
525 struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
527 IWL_DEBUG_MAC80211("enter: \n");
529 iwl_conf->is_ht = bss_conf->assoc_ht;
531 if (!iwl_conf->is_ht)
534 priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
536 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
537 iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
538 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
539 iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
541 iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
542 iwl_conf->max_amsdu_size =
543 !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
545 iwl_conf->supported_chan_width =
546 !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
547 iwl_conf->extension_chan_offset =
548 ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
549 /* If no above or below channel supplied disable FAT channel */
550 if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE &&
551 iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) {
552 iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE;
553 iwl_conf->supported_chan_width = 0;
556 iwl_conf->tx_mimo_ps_mode =
557 (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
558 memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
560 iwl_conf->control_channel = ht_bss_conf->primary_channel;
561 iwl_conf->tx_chan_width =
562 !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
563 iwl_conf->ht_protection =
564 ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
565 iwl_conf->non_GF_STA_present =
566 !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
568 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
569 IWL_DEBUG_MAC80211("leave\n");
575 static int iwl4965_send_qos_params_command(struct iwl_priv *priv,
576 struct iwl4965_qosparam_cmd *qos)
579 return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM,
580 sizeof(struct iwl4965_qosparam_cmd), qos);
583 static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force)
587 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
590 if (!priv->qos_data.qos_enable)
593 spin_lock_irqsave(&priv->lock, flags);
594 priv->qos_data.def_qos_parm.qos_flags = 0;
596 if (priv->qos_data.qos_cap.q_AP.queue_request &&
597 !priv->qos_data.qos_cap.q_AP.txop_request)
598 priv->qos_data.def_qos_parm.qos_flags |=
599 QOS_PARAM_FLG_TXOP_TYPE_MSK;
600 if (priv->qos_data.qos_active)
601 priv->qos_data.def_qos_parm.qos_flags |=
602 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
604 if (priv->current_ht_config.is_ht)
605 priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
607 spin_unlock_irqrestore(&priv->lock, flags);
609 if (force || iwl_is_associated(priv)) {
610 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
611 priv->qos_data.qos_active,
612 priv->qos_data.def_qos_parm.qos_flags);
614 iwl4965_send_qos_params_command(priv,
615 &(priv->qos_data.def_qos_parm));
619 #define MAX_UCODE_BEACON_INTERVAL 4096
620 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
622 static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
625 u16 beacon_factor = 0;
628 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
629 / MAX_UCODE_BEACON_INTERVAL;
630 new_val = beacon_val / beacon_factor;
632 return cpu_to_le16(new_val);
635 static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
637 u64 interval_tm_unit;
640 struct ieee80211_conf *conf = NULL;
643 conf = ieee80211_get_hw_conf(priv->hw);
645 spin_lock_irqsave(&priv->lock, flags);
646 priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32);
647 priv->rxon_timing.timestamp.dw[0] =
648 cpu_to_le32(priv->timestamp & 0xFFFFFFFF);
650 priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
652 tsf = priv->timestamp;
654 beacon_int = priv->beacon_int;
655 spin_unlock_irqrestore(&priv->lock, flags);
657 if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
658 if (beacon_int == 0) {
659 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
660 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
662 priv->rxon_timing.beacon_interval =
663 cpu_to_le16(beacon_int);
664 priv->rxon_timing.beacon_interval =
665 iwl4965_adjust_beacon_interval(
666 le16_to_cpu(priv->rxon_timing.beacon_interval));
669 priv->rxon_timing.atim_window = 0;
671 priv->rxon_timing.beacon_interval =
672 iwl4965_adjust_beacon_interval(conf->beacon_int);
673 /* TODO: we need to get atim_window from upper stack
674 * for now we set to 0 */
675 priv->rxon_timing.atim_window = 0;
679 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
680 result = do_div(tsf, interval_tm_unit);
681 priv->rxon_timing.beacon_init_val =
682 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
685 ("beacon interval %d beacon timer %d beacon tim %d\n",
686 le16_to_cpu(priv->rxon_timing.beacon_interval),
687 le32_to_cpu(priv->rxon_timing.beacon_init_val),
688 le16_to_cpu(priv->rxon_timing.atim_window));
691 static void iwl_set_flags_for_band(struct iwl_priv *priv,
692 enum ieee80211_band band)
694 if (band == IEEE80211_BAND_5GHZ) {
695 priv->staging_rxon.flags &=
696 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
698 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
700 /* Copied from iwl4965_post_associate() */
701 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
702 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
704 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
706 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
707 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
709 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
710 priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
711 priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
716 * initialize rxon structure with default values from eeprom
718 static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
720 const struct iwl_channel_info *ch_info;
722 memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
724 switch (priv->iw_mode) {
725 case IEEE80211_IF_TYPE_AP:
726 priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
729 case IEEE80211_IF_TYPE_STA:
730 priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
731 priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
734 case IEEE80211_IF_TYPE_IBSS:
735 priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
736 priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
737 priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
738 RXON_FILTER_ACCEPT_GRP_MSK;
741 case IEEE80211_IF_TYPE_MNTR:
742 priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
743 priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
744 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
747 IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode);
752 /* TODO: Figure out when short_preamble would be set and cache from
754 if (!hw_to_local(priv->hw)->short_preamble)
755 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
757 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
760 ch_info = iwl_get_channel_info(priv, priv->band,
761 le16_to_cpu(priv->staging_rxon.channel));
764 ch_info = &priv->channel_info[0];
767 * in some case A channels are all non IBSS
768 * in this case force B/G channel
770 if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
771 !(is_channel_ibss(ch_info)))
772 ch_info = &priv->channel_info[0];
774 priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
775 priv->band = ch_info->band;
777 iwl_set_flags_for_band(priv, priv->band);
779 priv->staging_rxon.ofdm_basic_rates =
780 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
781 priv->staging_rxon.cck_basic_rates =
782 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
784 priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
785 RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
786 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
787 memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
788 priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
789 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
790 iwl_set_rxon_chain(priv);
793 static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
795 priv->iw_mode = mode;
797 /* init channel/phymode to values given at driver init */
798 iwl_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
800 iwl4965_connection_init_rx_config(priv);
801 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
803 iwl_clear_stations_table(priv);
805 /* dont commit rxon if rf-kill is on*/
806 if (!iwl_is_ready_rf(priv))
809 cancel_delayed_work(&priv->scan_check);
810 if (iwl_scan_cancel_timeout(priv, 100)) {
811 IWL_WARNING("Aborted scan still in progress after 100ms\n");
812 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
816 iwl4965_commit_rxon(priv);
821 static void iwl4965_set_rate(struct iwl_priv *priv)
823 const struct ieee80211_supported_band *hw = NULL;
824 struct ieee80211_rate *rate;
827 hw = iwl_get_hw_mode(priv, priv->band);
829 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
833 priv->active_rate = 0;
834 priv->active_rate_basic = 0;
836 for (i = 0; i < hw->n_bitrates; i++) {
837 rate = &(hw->bitrates[i]);
838 if (rate->hw_value < IWL_RATE_COUNT)
839 priv->active_rate |= (1 << rate->hw_value);
842 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
843 priv->active_rate, priv->active_rate_basic);
846 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
847 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
850 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
851 priv->staging_rxon.cck_basic_rates =
852 ((priv->active_rate_basic &
853 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
855 priv->staging_rxon.cck_basic_rates =
856 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
858 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
859 priv->staging_rxon.ofdm_basic_rates =
860 ((priv->active_rate_basic &
861 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
862 IWL_FIRST_OFDM_RATE) & 0xFF;
864 priv->staging_rxon.ofdm_basic_rates =
865 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
868 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
870 #include "iwl-spectrum.h"
872 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
873 #define BEACON_TIME_MASK_HIGH 0xFF000000
874 #define TIME_UNIT 1024
877 * extended beacon time format
878 * time in usec will be changed into a 32-bit value in 8:24 format
879 * the high 1 byte is the beacon counts
880 * the lower 3 bytes is the time in usec within one beacon interval
883 static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
887 u32 interval = beacon_interval * 1024;
889 if (!interval || !usec)
892 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
893 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
895 return (quot << 24) + rem;
898 /* base is usually what we get from ucode with each received frame,
899 * the same as HW timer counter counting down
902 static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
904 u32 base_low = base & BEACON_TIME_MASK_LOW;
905 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
906 u32 interval = beacon_interval * TIME_UNIT;
907 u32 res = (base & BEACON_TIME_MASK_HIGH) +
908 (addon & BEACON_TIME_MASK_HIGH);
910 if (base_low > addon_low)
911 res += base_low - addon_low;
912 else if (base_low < addon_low) {
913 res += interval + base_low - addon_low;
918 return cpu_to_le32(res);
921 static int iwl4965_get_measurement(struct iwl_priv *priv,
922 struct ieee80211_measurement_params *params,
925 struct iwl4965_spectrum_cmd spectrum;
926 struct iwl_rx_packet *res;
927 struct iwl_host_cmd cmd = {
928 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
929 .data = (void *)&spectrum,
930 .meta.flags = CMD_WANT_SKB,
932 u32 add_time = le64_to_cpu(params->start_time);
934 int spectrum_resp_status;
935 int duration = le16_to_cpu(params->duration);
937 if (iwl_is_associated(priv))
939 iwl4965_usecs_to_beacons(
940 le64_to_cpu(params->start_time) - priv->last_tsf,
941 le16_to_cpu(priv->rxon_timing.beacon_interval));
943 memset(&spectrum, 0, sizeof(spectrum));
945 spectrum.channel_count = cpu_to_le16(1);
947 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
948 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
949 cmd.len = sizeof(spectrum);
950 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
952 if (iwl_is_associated(priv))
953 spectrum.start_time =
954 iwl4965_add_beacon_time(priv->last_beacon_time,
956 le16_to_cpu(priv->rxon_timing.beacon_interval));
958 spectrum.start_time = 0;
960 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
961 spectrum.channels[0].channel = params->channel;
962 spectrum.channels[0].type = type;
963 if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
964 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
965 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
967 rc = iwl_send_cmd_sync(priv, &cmd);
971 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
972 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
973 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
977 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
978 switch (spectrum_resp_status) {
979 case 0: /* Command will be handled */
980 if (res->u.spectrum.id != 0xff) {
982 ("Replaced existing measurement: %d\n",
984 priv->measurement_status &= ~MEASUREMENT_READY;
986 priv->measurement_status |= MEASUREMENT_ACTIVE;
990 case 1: /* Command will not be handled */
995 dev_kfree_skb_any(cmd.meta.u.skb);
1001 /******************************************************************************
1003 * Generic RX handler implementations
1005 ******************************************************************************/
1006 static void iwl_rx_reply_alive(struct iwl_priv *priv,
1007 struct iwl_rx_mem_buffer *rxb)
1009 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1010 struct iwl_alive_resp *palive;
1011 struct delayed_work *pwork;
1013 palive = &pkt->u.alive_frame;
1015 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
1017 palive->is_valid, palive->ver_type,
1018 palive->ver_subtype);
1020 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
1021 IWL_DEBUG_INFO("Initialization Alive received.\n");
1022 memcpy(&priv->card_alive_init,
1023 &pkt->u.alive_frame,
1024 sizeof(struct iwl_init_alive_resp));
1025 pwork = &priv->init_alive_start;
1027 IWL_DEBUG_INFO("Runtime Alive received.\n");
1028 memcpy(&priv->card_alive, &pkt->u.alive_frame,
1029 sizeof(struct iwl_alive_resp));
1030 pwork = &priv->alive_start;
1033 /* We delay the ALIVE response by 5ms to
1034 * give the HW RF Kill time to activate... */
1035 if (palive->is_valid == UCODE_VALID_OK)
1036 queue_delayed_work(priv->workqueue, pwork,
1037 msecs_to_jiffies(5));
1039 IWL_WARNING("uCode did not respond OK.\n");
1042 static void iwl4965_rx_reply_error(struct iwl_priv *priv,
1043 struct iwl_rx_mem_buffer *rxb)
1045 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1047 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
1048 "seq 0x%04X ser 0x%08X\n",
1049 le32_to_cpu(pkt->u.err_resp.error_type),
1050 get_cmd_string(pkt->u.err_resp.cmd_id),
1051 pkt->u.err_resp.cmd_id,
1052 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
1053 le32_to_cpu(pkt->u.err_resp.error_info));
1056 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1058 static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
1060 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1061 struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
1062 struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
1063 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
1064 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
1065 rxon->channel = csa->channel;
1066 priv->staging_rxon.channel = csa->channel;
1069 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv,
1070 struct iwl_rx_mem_buffer *rxb)
1072 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1073 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1074 struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
1076 if (!report->state) {
1077 IWL_DEBUG(IWL_DL_11H,
1078 "Spectrum Measure Notification: Start\n");
1082 memcpy(&priv->measure_report, report, sizeof(*report));
1083 priv->measurement_status |= MEASUREMENT_READY;
1087 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv,
1088 struct iwl_rx_mem_buffer *rxb)
1090 #ifdef CONFIG_IWLWIFI_DEBUG
1091 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1092 struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
1093 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
1094 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
1098 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
1099 struct iwl_rx_mem_buffer *rxb)
1101 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1102 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
1103 "notification for %s:\n",
1104 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
1105 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
1108 static void iwl4965_bg_beacon_update(struct work_struct *work)
1110 struct iwl_priv *priv =
1111 container_of(work, struct iwl_priv, beacon_update);
1112 struct sk_buff *beacon;
1114 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
1115 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
1118 IWL_ERROR("update beacon failed\n");
1122 mutex_lock(&priv->mutex);
1123 /* new beacon skb is allocated every time; dispose previous.*/
1124 if (priv->ibss_beacon)
1125 dev_kfree_skb(priv->ibss_beacon);
1127 priv->ibss_beacon = beacon;
1128 mutex_unlock(&priv->mutex);
1130 iwl4965_send_beacon_cmd(priv);
1134 * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
1136 * This callback is provided in order to send a statistics request.
1138 * This timer function is continually reset to execute within
1139 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
1140 * was received. We need to ensure we receive the statistics in order
1141 * to update the temperature used for calibrating the TXPOWER.
1143 static void iwl4965_bg_statistics_periodic(unsigned long data)
1145 struct iwl_priv *priv = (struct iwl_priv *)data;
1147 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1150 iwl_send_statistics_request(priv, CMD_ASYNC);
1153 static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
1154 struct iwl_rx_mem_buffer *rxb)
1156 #ifdef CONFIG_IWLWIFI_DEBUG
1157 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1158 struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
1159 u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
1161 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
1162 "tsf %d %d rate %d\n",
1163 le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
1164 beacon->beacon_notify_hdr.failure_frame,
1165 le32_to_cpu(beacon->ibss_mgr_status),
1166 le32_to_cpu(beacon->high_tsf),
1167 le32_to_cpu(beacon->low_tsf), rate);
1170 if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
1171 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
1172 queue_work(priv->workqueue, &priv->beacon_update);
1175 /* Handle notification from uCode that card's power state is changing
1176 * due to software, hardware, or critical temperature RFKILL */
1177 static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
1178 struct iwl_rx_mem_buffer *rxb)
1180 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1181 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
1182 unsigned long status = priv->status;
1184 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
1185 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
1186 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
1188 if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
1189 RF_CARD_DISABLED)) {
1191 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1192 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1194 if (!iwl_grab_nic_access(priv)) {
1196 priv, HBUS_TARG_MBX_C,
1197 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
1199 iwl_release_nic_access(priv);
1202 if (!(flags & RXON_CARD_DISABLED)) {
1203 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
1204 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1205 if (!iwl_grab_nic_access(priv)) {
1207 priv, HBUS_TARG_MBX_C,
1208 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
1210 iwl_release_nic_access(priv);
1214 if (flags & RF_CARD_DISABLED) {
1215 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1216 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
1217 iwl_read32(priv, CSR_UCODE_DRV_GP1);
1218 if (!iwl_grab_nic_access(priv))
1219 iwl_release_nic_access(priv);
1223 if (flags & HW_CARD_DISABLED)
1224 set_bit(STATUS_RF_KILL_HW, &priv->status);
1226 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1229 if (flags & SW_CARD_DISABLED)
1230 set_bit(STATUS_RF_KILL_SW, &priv->status);
1232 clear_bit(STATUS_RF_KILL_SW, &priv->status);
1234 if (!(flags & RXON_CARD_DISABLED))
1235 iwl_scan_cancel(priv);
1237 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
1238 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
1239 (test_bit(STATUS_RF_KILL_SW, &status) !=
1240 test_bit(STATUS_RF_KILL_SW, &priv->status)))
1241 queue_work(priv->workqueue, &priv->rf_kill);
1243 wake_up_interruptible(&priv->wait_command_queue);
1247 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
1249 * Setup the RX handlers for each of the reply types sent from the uCode
1252 * This function chains into the hardware specific files for them to setup
1253 * any hardware specific handlers as well.
1255 static void iwl_setup_rx_handlers(struct iwl_priv *priv)
1257 priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
1258 priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
1259 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
1260 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
1261 iwl4965_rx_spectrum_measure_notif;
1262 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
1263 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
1264 iwl4965_rx_pm_debug_statistics_notif;
1265 priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
1268 * The same handler is used for both the REPLY to a discrete
1269 * statistics request from the host as well as for the periodic
1270 * statistics notifications (after received beacons) from the uCode.
1272 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics;
1273 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
1275 iwl_setup_rx_scan_handlers(priv);
1277 /* status change handler */
1278 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
1280 priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
1281 iwl_rx_missed_beacon_notif;
1283 priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
1284 priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
1286 priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
1287 /* Set up hardware specific Rx handlers */
1288 priv->cfg->ops->lib->rx_handler_setup(priv);
1292 * this should be called while priv->lock is locked
1294 static void __iwl_rx_replenish(struct iwl_priv *priv)
1296 iwl_rx_allocate(priv);
1297 iwl_rx_queue_restock(priv);
1302 * iwl_rx_handle - Main entry function for receiving responses from uCode
1304 * Uses the priv->rx_handlers callback function array to invoke
1305 * the appropriate handlers, including command responses,
1306 * frame-received notifications, and other notifications.
1308 void iwl_rx_handle(struct iwl_priv *priv)
1310 struct iwl_rx_mem_buffer *rxb;
1311 struct iwl_rx_packet *pkt;
1312 struct iwl_rx_queue *rxq = &priv->rxq;
1315 unsigned long flags;
1319 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1320 * buffer that the driver may process (last buffer filled by ucode). */
1321 r = priv->cfg->ops->lib->shared_mem_rx_idx(priv);
1324 /* Rx interrupt, but nothing sent from uCode */
1326 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i);
1328 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
1332 rxb = rxq->queue[i];
1334 /* If an RXB doesn't have a Rx queue slot associated with it,
1335 * then a bug has been introduced in the queue refilling
1336 * routines -- catch it here */
1337 BUG_ON(rxb == NULL);
1339 rxq->queue[i] = NULL;
1341 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
1342 priv->hw_params.rx_buf_size,
1343 PCI_DMA_FROMDEVICE);
1344 pkt = (struct iwl_rx_packet *)rxb->skb->data;
1346 /* Reclaim a command buffer only if this packet is a response
1347 * to a (driver-originated) command.
1348 * If the packet (e.g. Rx frame) originated from uCode,
1349 * there is no command buffer to reclaim.
1350 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1351 * but apparently a few don't get set; catch them here. */
1352 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
1353 (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
1354 (pkt->hdr.cmd != REPLY_RX) &&
1355 (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
1356 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
1357 (pkt->hdr.cmd != REPLY_TX);
1359 /* Based on type of command response or notification,
1360 * handle those that need handling via function in
1361 * rx_handlers table. See iwl4965_setup_rx_handlers() */
1362 if (priv->rx_handlers[pkt->hdr.cmd]) {
1363 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r,
1364 i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
1365 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
1367 /* No handling needed */
1368 IWL_DEBUG(IWL_DL_RX,
1369 "r %d i %d No handler needed for %s, 0x%02x\n",
1370 r, i, get_cmd_string(pkt->hdr.cmd),
1375 /* Invoke any callbacks, transfer the skb to caller, and
1376 * fire off the (possibly) blocking iwl_send_cmd()
1377 * as we reclaim the driver command queue */
1378 if (rxb && rxb->skb)
1379 iwl_tx_cmd_complete(priv, rxb);
1381 IWL_WARNING("Claim null rxb?\n");
1384 /* For now we just don't re-use anything. We can tweak this
1385 * later to try and re-use notification packets and SKBs that
1386 * fail to Rx correctly */
1387 if (rxb->skb != NULL) {
1388 priv->alloc_rxb_skb--;
1389 dev_kfree_skb_any(rxb->skb);
1393 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
1394 priv->hw_params.rx_buf_size,
1395 PCI_DMA_FROMDEVICE);
1396 spin_lock_irqsave(&rxq->lock, flags);
1397 list_add_tail(&rxb->list, &priv->rxq.rx_used);
1398 spin_unlock_irqrestore(&rxq->lock, flags);
1399 i = (i + 1) & RX_QUEUE_MASK;
1400 /* If there are a lot of unused frames,
1401 * restock the Rx queue so ucode wont assert. */
1406 __iwl_rx_replenish(priv);
1412 /* Backtrack one entry */
1414 iwl_rx_queue_restock(priv);
1417 #ifdef CONFIG_IWLWIFI_DEBUG
1418 static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
1420 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
1421 DECLARE_MAC_BUF(mac);
1423 IWL_DEBUG_RADIO("RX CONFIG:\n");
1424 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
1425 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
1426 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
1427 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
1428 le32_to_cpu(rxon->filter_flags));
1429 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
1430 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
1431 rxon->ofdm_basic_rates);
1432 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
1433 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
1434 print_mac(mac, rxon->node_addr));
1435 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
1436 print_mac(mac, rxon->bssid_addr));
1437 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
1441 static void iwl4965_enable_interrupts(struct iwl_priv *priv)
1443 IWL_DEBUG_ISR("Enabling interrupts\n");
1444 set_bit(STATUS_INT_ENABLED, &priv->status);
1445 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
1448 /* call this function to flush any scheduled tasklet */
1449 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
1451 /* wait to make sure we flush pedding tasklet*/
1452 synchronize_irq(priv->pci_dev->irq);
1453 tasklet_kill(&priv->irq_tasklet);
1456 static inline void iwl4965_disable_interrupts(struct iwl_priv *priv)
1458 clear_bit(STATUS_INT_ENABLED, &priv->status);
1460 /* disable interrupts from uCode/NIC to host */
1461 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1463 /* acknowledge/clear/reset any interrupts still pending
1464 * from uCode or flow handler (Rx/Tx DMA) */
1465 iwl_write32(priv, CSR_INT, 0xffffffff);
1466 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
1467 IWL_DEBUG_ISR("Disabled interrupts\n");
1472 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
1474 static void iwl4965_irq_handle_error(struct iwl_priv *priv)
1476 /* Set the FW error flag -- cleared on iwl4965_down */
1477 set_bit(STATUS_FW_ERROR, &priv->status);
1479 /* Cancel currently queued command. */
1480 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
1482 #ifdef CONFIG_IWLWIFI_DEBUG
1483 if (priv->debug_level & IWL_DL_FW_ERRORS) {
1484 iwl_dump_nic_error_log(priv);
1485 iwl_dump_nic_event_log(priv);
1486 iwl4965_print_rx_config_cmd(priv);
1490 wake_up_interruptible(&priv->wait_command_queue);
1492 /* Keep the restart process from trying to send host
1493 * commands by clearing the INIT status bit */
1494 clear_bit(STATUS_READY, &priv->status);
1496 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1497 IWL_DEBUG(IWL_DL_FW_ERRORS,
1498 "Restarting adapter due to uCode error.\n");
1500 if (iwl_is_associated(priv)) {
1501 memcpy(&priv->recovery_rxon, &priv->active_rxon,
1502 sizeof(priv->recovery_rxon));
1503 priv->error_recovering = 1;
1505 if (priv->cfg->mod_params->restart_fw)
1506 queue_work(priv->workqueue, &priv->restart);
1510 static void iwl4965_error_recovery(struct iwl_priv *priv)
1512 unsigned long flags;
1514 memcpy(&priv->staging_rxon, &priv->recovery_rxon,
1515 sizeof(priv->staging_rxon));
1516 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1517 iwl4965_commit_rxon(priv);
1519 iwl_rxon_add_station(priv, priv->bssid, 1);
1521 spin_lock_irqsave(&priv->lock, flags);
1522 priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
1523 priv->error_recovering = 0;
1524 spin_unlock_irqrestore(&priv->lock, flags);
1527 static void iwl4965_irq_tasklet(struct iwl_priv *priv)
1529 u32 inta, handled = 0;
1531 unsigned long flags;
1532 #ifdef CONFIG_IWLWIFI_DEBUG
1536 spin_lock_irqsave(&priv->lock, flags);
1538 /* Ack/clear/reset pending uCode interrupts.
1539 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1540 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1541 inta = iwl_read32(priv, CSR_INT);
1542 iwl_write32(priv, CSR_INT, inta);
1544 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1545 * Any new interrupts that happen after this, either while we're
1546 * in this tasklet, or later, will show up in next ISR/tasklet. */
1547 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1548 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
1550 #ifdef CONFIG_IWLWIFI_DEBUG
1551 if (priv->debug_level & IWL_DL_ISR) {
1552 /* just for debug */
1553 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1554 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1555 inta, inta_mask, inta_fh);
1559 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1560 * atomic, make sure that inta covers all the interrupts that
1561 * we've discovered, even if FH interrupt came in just after
1562 * reading CSR_INT. */
1563 if (inta_fh & CSR49_FH_INT_RX_MASK)
1564 inta |= CSR_INT_BIT_FH_RX;
1565 if (inta_fh & CSR49_FH_INT_TX_MASK)
1566 inta |= CSR_INT_BIT_FH_TX;
1568 /* Now service all interrupt bits discovered above. */
1569 if (inta & CSR_INT_BIT_HW_ERR) {
1570 IWL_ERROR("Microcode HW error detected. Restarting.\n");
1572 /* Tell the device to stop sending interrupts */
1573 iwl4965_disable_interrupts(priv);
1575 iwl4965_irq_handle_error(priv);
1577 handled |= CSR_INT_BIT_HW_ERR;
1579 spin_unlock_irqrestore(&priv->lock, flags);
1584 #ifdef CONFIG_IWLWIFI_DEBUG
1585 if (priv->debug_level & (IWL_DL_ISR)) {
1586 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1587 if (inta & CSR_INT_BIT_SCD)
1588 IWL_DEBUG_ISR("Scheduler finished to transmit "
1589 "the frame/frames.\n");
1591 /* Alive notification via Rx interrupt will do the real work */
1592 if (inta & CSR_INT_BIT_ALIVE)
1593 IWL_DEBUG_ISR("Alive interrupt\n");
1596 /* Safely ignore these bits for debug checks below */
1597 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1599 /* HW RF KILL switch toggled */
1600 if (inta & CSR_INT_BIT_RF_KILL) {
1602 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
1603 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
1606 IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n",
1607 hw_rf_kill ? "disable radio":"enable radio");
1609 /* Queue restart only if RF_KILL switch was set to "kill"
1610 * when we loaded driver, and is now set to "enable".
1611 * After we're Alive, RF_KILL gets handled by
1612 * iwl4965_rx_card_state_notif() */
1613 if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) {
1614 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1615 queue_work(priv->workqueue, &priv->restart);
1618 handled |= CSR_INT_BIT_RF_KILL;
1621 /* Chip got too hot and stopped itself */
1622 if (inta & CSR_INT_BIT_CT_KILL) {
1623 IWL_ERROR("Microcode CT kill error detected.\n");
1624 handled |= CSR_INT_BIT_CT_KILL;
1627 /* Error detected by uCode */
1628 if (inta & CSR_INT_BIT_SW_ERR) {
1629 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
1631 iwl4965_irq_handle_error(priv);
1632 handled |= CSR_INT_BIT_SW_ERR;
1635 /* uCode wakes up after power-down sleep */
1636 if (inta & CSR_INT_BIT_WAKEUP) {
1637 IWL_DEBUG_ISR("Wakeup interrupt\n");
1638 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
1639 iwl_txq_update_write_ptr(priv, &priv->txq[0]);
1640 iwl_txq_update_write_ptr(priv, &priv->txq[1]);
1641 iwl_txq_update_write_ptr(priv, &priv->txq[2]);
1642 iwl_txq_update_write_ptr(priv, &priv->txq[3]);
1643 iwl_txq_update_write_ptr(priv, &priv->txq[4]);
1644 iwl_txq_update_write_ptr(priv, &priv->txq[5]);
1646 handled |= CSR_INT_BIT_WAKEUP;
1649 /* All uCode command responses, including Tx command responses,
1650 * Rx "responses" (frame-received notification), and other
1651 * notifications from uCode come through here*/
1652 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1653 iwl_rx_handle(priv);
1654 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1657 if (inta & CSR_INT_BIT_FH_TX) {
1658 IWL_DEBUG_ISR("Tx interrupt\n");
1659 handled |= CSR_INT_BIT_FH_TX;
1660 /* FH finished to write, send event */
1661 priv->ucode_write_complete = 1;
1662 wake_up_interruptible(&priv->wait_command_queue);
1665 if (inta & ~handled)
1666 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
1668 if (inta & ~CSR_INI_SET_MASK) {
1669 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
1670 inta & ~CSR_INI_SET_MASK);
1671 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
1674 /* Re-enable all interrupts */
1675 /* only Re-enable if diabled by irq */
1676 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1677 iwl4965_enable_interrupts(priv);
1679 #ifdef CONFIG_IWLWIFI_DEBUG
1680 if (priv->debug_level & (IWL_DL_ISR)) {
1681 inta = iwl_read32(priv, CSR_INT);
1682 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1683 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1684 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1685 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
1688 spin_unlock_irqrestore(&priv->lock, flags);
1691 static irqreturn_t iwl4965_isr(int irq, void *data)
1693 struct iwl_priv *priv = data;
1694 u32 inta, inta_mask;
1699 spin_lock(&priv->lock);
1701 /* Disable (but don't clear!) interrupts here to avoid
1702 * back-to-back ISRs and sporadic interrupts from our NIC.
1703 * If we have something to service, the tasklet will re-enable ints.
1704 * If we *don't* have something, we'll re-enable before leaving here. */
1705 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
1706 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1708 /* Discover which interrupts are active/pending */
1709 inta = iwl_read32(priv, CSR_INT);
1710 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1712 /* Ignore interrupt if there's nothing in NIC to service.
1713 * This may be due to IRQ shared with another device,
1714 * or due to sporadic interrupts thrown from our NIC. */
1715 if (!inta && !inta_fh) {
1716 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
1720 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
1721 /* Hardware disappeared. It might have already raised
1723 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
1727 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1728 inta, inta_mask, inta_fh);
1730 inta &= ~CSR_INT_BIT_SCD;
1732 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
1733 if (likely(inta || inta_fh))
1734 tasklet_schedule(&priv->irq_tasklet);
1737 spin_unlock(&priv->lock);
1741 /* re-enable interrupts here since we don't have anything to service. */
1742 /* only Re-enable if diabled by irq */
1743 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1744 iwl4965_enable_interrupts(priv);
1745 spin_unlock(&priv->lock);
1749 /******************************************************************************
1751 * uCode download functions
1753 ******************************************************************************/
1755 static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
1757 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
1758 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
1759 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1760 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
1761 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1762 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
1765 static void iwl4965_nic_start(struct iwl_priv *priv)
1767 /* Remove all resets to allow NIC to operate */
1768 iwl_write32(priv, CSR_RESET, 0);
1773 * iwl4965_read_ucode - Read uCode images from disk file.
1775 * Copy into buffers for card to fetch via bus-mastering
1777 static int iwl4965_read_ucode(struct iwl_priv *priv)
1779 struct iwl_ucode *ucode;
1781 const struct firmware *ucode_raw;
1782 const char *name = priv->cfg->fw_name;
1785 u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
1787 /* Ask kernel firmware_class module to get the boot firmware off disk.
1788 * request_firmware() is synchronous, file is in memory on return. */
1789 ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
1791 IWL_ERROR("%s firmware file req failed: Reason %d\n",
1796 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
1797 name, ucode_raw->size);
1799 /* Make sure that we got at least our header! */
1800 if (ucode_raw->size < sizeof(*ucode)) {
1801 IWL_ERROR("File size way too small!\n");
1806 /* Data from ucode file: header followed by uCode images */
1807 ucode = (void *)ucode_raw->data;
1809 ver = le32_to_cpu(ucode->ver);
1810 inst_size = le32_to_cpu(ucode->inst_size);
1811 data_size = le32_to_cpu(ucode->data_size);
1812 init_size = le32_to_cpu(ucode->init_size);
1813 init_data_size = le32_to_cpu(ucode->init_data_size);
1814 boot_size = le32_to_cpu(ucode->boot_size);
1816 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
1817 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
1819 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
1821 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
1823 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
1825 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
1828 /* Verify size of file vs. image size info in file's header */
1829 if (ucode_raw->size < sizeof(*ucode) +
1830 inst_size + data_size + init_size +
1831 init_data_size + boot_size) {
1833 IWL_DEBUG_INFO("uCode file size %d too small\n",
1834 (int)ucode_raw->size);
1839 /* Verify that uCode images will fit in card's SRAM */
1840 if (inst_size > priv->hw_params.max_inst_size) {
1841 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
1847 if (data_size > priv->hw_params.max_data_size) {
1848 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
1853 if (init_size > priv->hw_params.max_inst_size) {
1855 ("uCode init instr len %d too large to fit in\n",
1860 if (init_data_size > priv->hw_params.max_data_size) {
1862 ("uCode init data len %d too large to fit in\n",
1867 if (boot_size > priv->hw_params.max_bsm_size) {
1869 ("uCode boot instr len %d too large to fit in\n",
1875 /* Allocate ucode buffers for card's bus-master loading ... */
1877 /* Runtime instructions and 2 copies of data:
1878 * 1) unmodified from disk
1879 * 2) backup cache for save/restore during power-downs */
1880 priv->ucode_code.len = inst_size;
1881 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
1883 priv->ucode_data.len = data_size;
1884 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
1886 priv->ucode_data_backup.len = data_size;
1887 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1889 /* Initialization instructions and data */
1890 if (init_size && init_data_size) {
1891 priv->ucode_init.len = init_size;
1892 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
1894 priv->ucode_init_data.len = init_data_size;
1895 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1897 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
1901 /* Bootstrap (instructions only, no data) */
1903 priv->ucode_boot.len = boot_size;
1904 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
1906 if (!priv->ucode_boot.v_addr)
1910 /* Copy images into buffers for card's bus-master reads ... */
1912 /* Runtime instructions (first block of data in file) */
1913 src = &ucode->data[0];
1914 len = priv->ucode_code.len;
1915 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
1916 memcpy(priv->ucode_code.v_addr, src, len);
1917 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
1918 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
1920 /* Runtime data (2nd block)
1921 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
1922 src = &ucode->data[inst_size];
1923 len = priv->ucode_data.len;
1924 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
1925 memcpy(priv->ucode_data.v_addr, src, len);
1926 memcpy(priv->ucode_data_backup.v_addr, src, len);
1928 /* Initialization instructions (3rd block) */
1930 src = &ucode->data[inst_size + data_size];
1931 len = priv->ucode_init.len;
1932 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
1934 memcpy(priv->ucode_init.v_addr, src, len);
1937 /* Initialization data (4th block) */
1938 if (init_data_size) {
1939 src = &ucode->data[inst_size + data_size + init_size];
1940 len = priv->ucode_init_data.len;
1941 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
1943 memcpy(priv->ucode_init_data.v_addr, src, len);
1946 /* Bootstrap instructions (5th block) */
1947 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
1948 len = priv->ucode_boot.len;
1949 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len);
1950 memcpy(priv->ucode_boot.v_addr, src, len);
1952 /* We have our copies now, allow OS release its copies */
1953 release_firmware(ucode_raw);
1957 IWL_ERROR("failed to allocate pci memory\n");
1959 iwl4965_dealloc_ucode_pci(priv);
1962 release_firmware(ucode_raw);
1969 * iwl_alive_start - called after REPLY_ALIVE notification received
1970 * from protocol/runtime uCode (initialization uCode's
1971 * Alive gets handled by iwl_init_alive_start()).
1973 static void iwl_alive_start(struct iwl_priv *priv)
1977 IWL_DEBUG_INFO("Runtime Alive received.\n");
1979 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
1980 /* We had an error bringing up the hardware, so take it
1981 * all the way back down so we can try again */
1982 IWL_DEBUG_INFO("Alive failed.\n");
1986 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
1987 * This is a paranoid check, because we would not have gotten the
1988 * "runtime" alive if code weren't properly loaded. */
1989 if (iwl_verify_ucode(priv)) {
1990 /* Runtime instruction load was bad;
1991 * take it all the way back down so we can try again */
1992 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
1996 iwl_clear_stations_table(priv);
1997 ret = priv->cfg->ops->lib->alive_notify(priv);
1999 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
2004 /* After the ALIVE response, we can send host commands to 4965 uCode */
2005 set_bit(STATUS_ALIVE, &priv->status);
2007 if (iwl_is_rfkill(priv))
2010 ieee80211_wake_queues(priv->hw);
2012 priv->active_rate = priv->rates_mask;
2013 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
2015 if (iwl_is_associated(priv)) {
2016 struct iwl_rxon_cmd *active_rxon =
2017 (struct iwl_rxon_cmd *)&priv->active_rxon;
2019 memcpy(&priv->staging_rxon, &priv->active_rxon,
2020 sizeof(priv->staging_rxon));
2021 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2023 /* Initialize our rx_config data */
2024 iwl4965_connection_init_rx_config(priv);
2025 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2028 /* Configure Bluetooth device coexistence support */
2029 iwl4965_send_bt_config(priv);
2031 iwl_reset_run_time_calib(priv);
2033 /* Configure the adapter for unassociated operation */
2034 iwl4965_commit_rxon(priv);
2036 /* At this point, the NIC is initialized and operational */
2037 iwl_rf_kill_ct_config(priv);
2039 iwl_leds_register(priv);
2041 IWL_DEBUG_INFO("ALIVE processing complete.\n");
2042 set_bit(STATUS_READY, &priv->status);
2043 wake_up_interruptible(&priv->wait_command_queue);
2045 if (priv->error_recovering)
2046 iwl4965_error_recovery(priv);
2048 iwl_power_update_mode(priv, 1);
2049 ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
2051 if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
2052 iwl4965_set_mode(priv, priv->iw_mode);
2057 queue_work(priv->workqueue, &priv->restart);
2060 static void iwl_cancel_deferred_work(struct iwl_priv *priv);
2062 static void __iwl4965_down(struct iwl_priv *priv)
2064 unsigned long flags;
2065 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
2067 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
2070 set_bit(STATUS_EXIT_PENDING, &priv->status);
2072 iwl_leds_unregister(priv);
2074 iwl_clear_stations_table(priv);
2076 /* Unblock any waiting calls */
2077 wake_up_interruptible_all(&priv->wait_command_queue);
2079 /* Wipe out the EXIT_PENDING status bit if we are not actually
2080 * exiting the module */
2082 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2084 /* stop and reset the on-board processor */
2085 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
2087 /* tell the device to stop sending interrupts */
2088 spin_lock_irqsave(&priv->lock, flags);
2089 iwl4965_disable_interrupts(priv);
2090 spin_unlock_irqrestore(&priv->lock, flags);
2091 iwl_synchronize_irq(priv);
2093 if (priv->mac80211_registered)
2094 ieee80211_stop_queues(priv->hw);
2096 /* If we have not previously called iwl4965_init() then
2097 * clear all bits but the RF Kill and SUSPEND bits and return */
2098 if (!iwl_is_init(priv)) {
2099 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2101 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
2103 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2104 STATUS_GEO_CONFIGURED |
2105 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
2110 /* ...otherwise clear out all the status bits but the RF Kill and
2111 * SUSPEND bits and continue taking the NIC down. */
2112 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2114 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
2116 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2117 STATUS_GEO_CONFIGURED |
2118 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
2120 test_bit(STATUS_FW_ERROR, &priv->status) <<
2123 spin_lock_irqsave(&priv->lock, flags);
2124 iwl_clear_bit(priv, CSR_GP_CNTRL,
2125 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
2126 spin_unlock_irqrestore(&priv->lock, flags);
2128 iwl_txq_ctx_stop(priv);
2131 spin_lock_irqsave(&priv->lock, flags);
2132 if (!iwl_grab_nic_access(priv)) {
2133 iwl_write_prph(priv, APMG_CLK_DIS_REG,
2134 APMG_CLK_VAL_DMA_CLK_RQT);
2135 iwl_release_nic_access(priv);
2137 spin_unlock_irqrestore(&priv->lock, flags);
2141 /* FIXME: apm_ops.suspend(priv) */
2142 priv->cfg->ops->lib->apm_ops.reset(priv);
2143 priv->cfg->ops->lib->free_shared_mem(priv);
2146 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
2148 if (priv->ibss_beacon)
2149 dev_kfree_skb(priv->ibss_beacon);
2150 priv->ibss_beacon = NULL;
2152 /* clear out any free frames */
2153 iwl_clear_free_frames(priv);
2156 static void iwl4965_down(struct iwl_priv *priv)
2158 mutex_lock(&priv->mutex);
2159 __iwl4965_down(priv);
2160 mutex_unlock(&priv->mutex);
2162 iwl_cancel_deferred_work(priv);
2165 #define MAX_HW_RESTARTS 5
2167 static int __iwl4965_up(struct iwl_priv *priv)
2172 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2173 IWL_WARNING("Exit pending; will not bring the NIC up\n");
2177 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
2178 IWL_ERROR("ucode not available for device bringup\n");
2182 /* If platform's RF_KILL switch is NOT set to KILL */
2183 if (iwl_read32(priv, CSR_GP_CNTRL) &
2184 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2185 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2187 set_bit(STATUS_RF_KILL_HW, &priv->status);
2188 if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
2189 iwl_rfkill_set_hw_state(priv);
2190 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
2195 iwl_rfkill_set_hw_state(priv);
2196 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2198 ret = priv->cfg->ops->lib->alloc_shared_mem(priv);
2200 IWL_ERROR("Unable to allocate shared memory\n");
2204 ret = iwl_hw_nic_init(priv);
2206 IWL_ERROR("Unable to init nic\n");
2210 /* make sure rfkill handshake bits are cleared */
2211 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2212 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
2213 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2215 /* clear (again), then enable host interrupts */
2216 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2217 iwl4965_enable_interrupts(priv);
2219 /* really make sure rfkill handshake bits are cleared */
2220 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2221 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2223 /* Copy original ucode data image from disk into backup cache.
2224 * This will be used to initialize the on-board processor's
2225 * data SRAM for a clean start when the runtime program first loads. */
2226 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
2227 priv->ucode_data.len);
2229 /* We return success when we resume from suspend and rf_kill is on. */
2230 if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
2231 test_bit(STATUS_RF_KILL_SW, &priv->status))
2234 for (i = 0; i < MAX_HW_RESTARTS; i++) {
2236 iwl_clear_stations_table(priv);
2238 /* load bootstrap state machine,
2239 * load bootstrap program into processor's memory,
2240 * prepare to load the "initialize" uCode */
2241 ret = priv->cfg->ops->lib->load_ucode(priv);
2244 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret);
2248 /* Clear out the uCode error bit if it is set */
2249 clear_bit(STATUS_FW_ERROR, &priv->status);
2251 /* start card; "initialize" will load runtime ucode */
2252 iwl4965_nic_start(priv);
2254 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
2259 set_bit(STATUS_EXIT_PENDING, &priv->status);
2260 __iwl4965_down(priv);
2261 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2263 /* tried to restart and config the device for as long as our
2264 * patience could withstand */
2265 IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
2270 /*****************************************************************************
2272 * Workqueue callbacks
2274 *****************************************************************************/
2276 static void iwl_bg_init_alive_start(struct work_struct *data)
2278 struct iwl_priv *priv =
2279 container_of(data, struct iwl_priv, init_alive_start.work);
2281 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2284 mutex_lock(&priv->mutex);
2285 priv->cfg->ops->lib->init_alive_start(priv);
2286 mutex_unlock(&priv->mutex);
2289 static void iwl_bg_alive_start(struct work_struct *data)
2291 struct iwl_priv *priv =
2292 container_of(data, struct iwl_priv, alive_start.work);
2294 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2297 mutex_lock(&priv->mutex);
2298 iwl_alive_start(priv);
2299 mutex_unlock(&priv->mutex);
2302 static void iwl4965_bg_rf_kill(struct work_struct *work)
2304 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
2306 wake_up_interruptible(&priv->wait_command_queue);
2308 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2311 mutex_lock(&priv->mutex);
2313 if (!iwl_is_rfkill(priv)) {
2314 IWL_DEBUG(IWL_DL_RF_KILL,
2315 "HW and/or SW RF Kill no longer active, restarting "
2317 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
2318 queue_work(priv->workqueue, &priv->restart);
2320 /* make sure mac80211 stop sending Tx frame */
2321 if (priv->mac80211_registered)
2322 ieee80211_stop_queues(priv->hw);
2324 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
2325 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2326 "disabled by SW switch\n");
2328 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
2329 "Kill switch must be turned off for "
2330 "wireless networking to work.\n");
2332 iwl_rfkill_set_hw_state(priv);
2334 mutex_unlock(&priv->mutex);
2337 static void iwl4965_bg_set_monitor(struct work_struct *work)
2339 struct iwl_priv *priv = container_of(work,
2340 struct iwl_priv, set_monitor);
2343 IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
2345 mutex_lock(&priv->mutex);
2347 ret = iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR);
2351 IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
2353 IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret);
2356 mutex_unlock(&priv->mutex);
2359 static void iwl_bg_run_time_calib_work(struct work_struct *work)
2361 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2362 run_time_calib_work);
2364 mutex_lock(&priv->mutex);
2366 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
2367 test_bit(STATUS_SCANNING, &priv->status)) {
2368 mutex_unlock(&priv->mutex);
2372 if (priv->start_calib) {
2373 iwl_chain_noise_calibration(priv, &priv->statistics);
2375 iwl_sensitivity_calibration(priv, &priv->statistics);
2378 mutex_unlock(&priv->mutex);
2382 static void iwl4965_bg_up(struct work_struct *data)
2384 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
2386 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2389 mutex_lock(&priv->mutex);
2391 mutex_unlock(&priv->mutex);
2394 static void iwl4965_bg_restart(struct work_struct *data)
2396 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
2398 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2402 queue_work(priv->workqueue, &priv->up);
2405 static void iwl4965_bg_rx_replenish(struct work_struct *data)
2407 struct iwl_priv *priv =
2408 container_of(data, struct iwl_priv, rx_replenish);
2410 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2413 mutex_lock(&priv->mutex);
2414 iwl_rx_replenish(priv);
2415 mutex_unlock(&priv->mutex);
2418 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2420 static void iwl4965_post_associate(struct iwl_priv *priv)
2422 struct ieee80211_conf *conf = NULL;
2424 DECLARE_MAC_BUF(mac);
2426 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
2427 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
2431 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
2433 print_mac(mac, priv->active_rxon.bssid_addr));
2436 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2440 if (!priv->vif || !priv->is_open)
2443 iwl_scan_cancel_timeout(priv, 200);
2445 conf = ieee80211_get_hw_conf(priv->hw);
2447 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2448 iwl4965_commit_rxon(priv);
2450 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
2451 iwl4965_setup_rxon_timing(priv);
2452 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
2453 sizeof(priv->rxon_timing), &priv->rxon_timing);
2455 IWL_WARNING("REPLY_RXON_TIMING failed - "
2456 "Attempting to continue.\n");
2458 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2460 if (priv->current_ht_config.is_ht)
2461 iwl_set_rxon_ht(priv, &priv->current_ht_config);
2463 iwl_set_rxon_chain(priv);
2464 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
2466 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
2467 priv->assoc_id, priv->beacon_int);
2469 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2470 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
2472 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
2474 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
2475 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
2476 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
2478 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
2480 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
2481 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
2485 iwl4965_commit_rxon(priv);
2487 switch (priv->iw_mode) {
2488 case IEEE80211_IF_TYPE_STA:
2491 case IEEE80211_IF_TYPE_IBSS:
2493 /* assume default assoc id */
2496 iwl_rxon_add_station(priv, priv->bssid, 0);
2497 iwl4965_send_beacon_cmd(priv);
2502 IWL_ERROR("%s Should not be called in %d mode\n",
2503 __FUNCTION__, priv->iw_mode);
2507 /* Enable Rx differential gain and sensitivity calibrations */
2508 iwl_chain_noise_reset(priv);
2509 priv->start_calib = 1;
2511 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
2512 priv->assoc_station_added = 1;
2514 iwl4965_activate_qos(priv, 0);
2516 iwl_power_update_mode(priv, 0);
2517 /* we have just associated, don't start scan too early */
2518 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
2522 static void iwl4965_bg_post_associate(struct work_struct *data)
2524 struct iwl_priv *priv = container_of(data, struct iwl_priv,
2525 post_associate.work);
2527 mutex_lock(&priv->mutex);
2528 iwl4965_post_associate(priv);
2529 mutex_unlock(&priv->mutex);
2533 static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
2535 static void iwl_bg_scan_completed(struct work_struct *work)
2537 struct iwl_priv *priv =
2538 container_of(work, struct iwl_priv, scan_completed);
2540 IWL_DEBUG_SCAN("SCAN complete scan\n");
2542 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2545 if (test_bit(STATUS_CONF_PENDING, &priv->status))
2546 iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
2548 ieee80211_scan_completed(priv->hw);
2550 /* Since setting the TXPOWER may have been deferred while
2551 * performing the scan, fire one off */
2552 mutex_lock(&priv->mutex);
2553 iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
2554 mutex_unlock(&priv->mutex);
2557 /*****************************************************************************
2559 * mac80211 entry point functions
2561 *****************************************************************************/
2563 #define UCODE_READY_TIMEOUT (2 * HZ)
2565 static int iwl4965_mac_start(struct ieee80211_hw *hw)
2567 struct iwl_priv *priv = hw->priv;
2570 IWL_DEBUG_MAC80211("enter\n");
2572 if (pci_enable_device(priv->pci_dev)) {
2573 IWL_ERROR("Fail to pci_enable_device\n");
2576 pci_restore_state(priv->pci_dev);
2577 pci_enable_msi(priv->pci_dev);
2579 ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED,
2582 IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq);
2583 goto out_disable_msi;
2586 /* we should be verifying the device is ready to be opened */
2587 mutex_lock(&priv->mutex);
2589 memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
2590 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
2591 * ucode filename and max sizes are card-specific. */
2593 if (!priv->ucode_code.len) {
2594 ret = iwl4965_read_ucode(priv);
2596 IWL_ERROR("Could not read microcode: %d\n", ret);
2597 mutex_unlock(&priv->mutex);
2598 goto out_release_irq;
2602 ret = __iwl4965_up(priv);
2604 mutex_unlock(&priv->mutex);
2607 goto out_release_irq;
2609 IWL_DEBUG_INFO("Start UP work done.\n");
2611 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
2614 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2615 * mac80211 will not be run successfully. */
2616 if (priv->ucode_type == UCODE_RT) {
2617 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
2618 test_bit(STATUS_READY, &priv->status),
2619 UCODE_READY_TIMEOUT);
2621 if (!test_bit(STATUS_READY, &priv->status)) {
2622 IWL_ERROR("START_ALIVE timeout after %dms.\n",
2623 jiffies_to_msecs(UCODE_READY_TIMEOUT));
2625 goto out_release_irq;
2631 IWL_DEBUG_MAC80211("leave\n");
2635 free_irq(priv->pci_dev->irq, priv);
2637 pci_disable_msi(priv->pci_dev);
2638 pci_disable_device(priv->pci_dev);
2640 IWL_DEBUG_MAC80211("leave - failed\n");
2644 static void iwl4965_mac_stop(struct ieee80211_hw *hw)
2646 struct iwl_priv *priv = hw->priv;
2648 IWL_DEBUG_MAC80211("enter\n");
2650 if (!priv->is_open) {
2651 IWL_DEBUG_MAC80211("leave - skip\n");
2657 if (iwl_is_ready_rf(priv)) {
2658 /* stop mac, cancel any scan request and clear
2659 * RXON_FILTER_ASSOC_MSK BIT
2661 mutex_lock(&priv->mutex);
2662 iwl_scan_cancel_timeout(priv, 100);
2663 cancel_delayed_work(&priv->post_associate);
2664 mutex_unlock(&priv->mutex);
2669 flush_workqueue(priv->workqueue);
2670 free_irq(priv->pci_dev->irq, priv);
2671 pci_disable_msi(priv->pci_dev);
2672 pci_save_state(priv->pci_dev);
2673 pci_disable_device(priv->pci_dev);
2675 IWL_DEBUG_MAC80211("leave\n");
2678 static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
2680 struct iwl_priv *priv = hw->priv;
2682 IWL_DEBUG_MAC80211("enter\n");
2684 if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
2685 IWL_DEBUG_MAC80211("leave - monitor\n");
2689 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
2690 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
2692 if (iwl_tx_skb(priv, skb))
2693 dev_kfree_skb_any(skb);
2695 IWL_DEBUG_MAC80211("leave\n");
2699 static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
2700 struct ieee80211_if_init_conf *conf)
2702 struct iwl_priv *priv = hw->priv;
2703 unsigned long flags;
2704 DECLARE_MAC_BUF(mac);
2706 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
2709 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
2713 spin_lock_irqsave(&priv->lock, flags);
2714 priv->vif = conf->vif;
2716 spin_unlock_irqrestore(&priv->lock, flags);
2718 mutex_lock(&priv->mutex);
2720 if (conf->mac_addr) {
2721 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
2722 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
2725 if (iwl4965_set_mode(priv, conf->type) == -EAGAIN)
2726 /* we are not ready, will run again when ready */
2727 set_bit(STATUS_MODE_PENDING, &priv->status);
2729 mutex_unlock(&priv->mutex);
2731 IWL_DEBUG_MAC80211("leave\n");
2736 * iwl4965_mac_config - mac80211 config callback
2738 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2739 * be set inappropriately and the driver currently sets the hardware up to
2740 * use it whenever needed.
2742 static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
2744 struct iwl_priv *priv = hw->priv;
2745 const struct iwl_channel_info *ch_info;
2746 unsigned long flags;
2750 mutex_lock(&priv->mutex);
2751 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
2753 priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
2755 if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) {
2756 IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
2760 if (!conf->radio_enabled)
2761 iwl_radio_kill_sw_disable_radio(priv);
2763 if (!iwl_is_ready(priv)) {
2764 IWL_DEBUG_MAC80211("leave - not ready\n");
2769 if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
2770 test_bit(STATUS_SCANNING, &priv->status))) {
2771 IWL_DEBUG_MAC80211("leave - scanning\n");
2772 set_bit(STATUS_CONF_PENDING, &priv->status);
2773 mutex_unlock(&priv->mutex);
2777 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2778 ch_info = iwl_get_channel_info(priv, conf->channel->band, channel);
2779 if (!is_channel_valid(ch_info)) {
2780 IWL_DEBUG_MAC80211("leave - invalid channel\n");
2785 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
2786 !is_channel_ibss(ch_info)) {
2787 IWL_ERROR("channel %d in band %d not IBSS channel\n",
2788 conf->channel->hw_value, conf->channel->band);
2793 spin_lock_irqsave(&priv->lock, flags);
2795 /* if we are switching from ht to 2.4 clear flags
2796 * from any ht related info since 2.4 does not
2798 if ((le16_to_cpu(priv->staging_rxon.channel) != channel)
2799 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
2800 && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
2803 priv->staging_rxon.flags = 0;
2805 iwl_set_rxon_channel(priv, conf->channel->band, channel);
2807 iwl_set_flags_for_band(priv, conf->channel->band);
2809 /* The list of supported rates and rate mask can be different
2810 * for each band; since the band may have changed, reset
2811 * the rate mask to what mac80211 lists */
2812 iwl4965_set_rate(priv);
2814 spin_unlock_irqrestore(&priv->lock, flags);
2816 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
2817 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
2818 iwl4965_hw_channel_switch(priv, conf->channel);
2823 if (!conf->radio_enabled) {
2824 IWL_DEBUG_MAC80211("leave - radio disabled\n");
2828 if (iwl_is_rfkill(priv)) {
2829 IWL_DEBUG_MAC80211("leave - RF kill\n");
2834 IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n",
2835 priv->tx_power_user_lmt, conf->power_level);
2837 iwl_set_tx_power(priv, conf->power_level, false);
2839 iwl4965_set_rate(priv);
2841 if (memcmp(&priv->active_rxon,
2842 &priv->staging_rxon, sizeof(priv->staging_rxon)))
2843 iwl4965_commit_rxon(priv);
2845 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
2847 IWL_DEBUG_MAC80211("leave\n");
2850 clear_bit(STATUS_CONF_PENDING, &priv->status);
2851 mutex_unlock(&priv->mutex);
2855 static void iwl4965_config_ap(struct iwl_priv *priv)
2859 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2862 /* The following should be done only at AP bring up */
2863 if (!(iwl_is_associated(priv))) {
2865 /* RXON - unassoc (to set timing command) */
2866 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2867 iwl4965_commit_rxon(priv);
2870 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
2871 iwl4965_setup_rxon_timing(priv);
2872 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
2873 sizeof(priv->rxon_timing), &priv->rxon_timing);
2875 IWL_WARNING("REPLY_RXON_TIMING failed - "
2876 "Attempting to continue.\n");
2878 iwl_set_rxon_chain(priv);
2880 /* FIXME: what should be the assoc_id for AP? */
2881 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
2882 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2883 priv->staging_rxon.flags |=
2884 RXON_FLG_SHORT_PREAMBLE_MSK;
2886 priv->staging_rxon.flags &=
2887 ~RXON_FLG_SHORT_PREAMBLE_MSK;
2889 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
2890 if (priv->assoc_capability &
2891 WLAN_CAPABILITY_SHORT_SLOT_TIME)
2892 priv->staging_rxon.flags |=
2893 RXON_FLG_SHORT_SLOT_MSK;
2895 priv->staging_rxon.flags &=
2896 ~RXON_FLG_SHORT_SLOT_MSK;
2898 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
2899 priv->staging_rxon.flags &=
2900 ~RXON_FLG_SHORT_SLOT_MSK;
2902 /* restore RXON assoc */
2903 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2904 iwl4965_commit_rxon(priv);
2905 iwl4965_activate_qos(priv, 1);
2906 iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
2908 iwl4965_send_beacon_cmd(priv);
2910 /* FIXME - we need to add code here to detect a totally new
2911 * configuration, reset the AP, unassoc, rxon timing, assoc,
2912 * clear sta table, add BCAST sta... */
2915 static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
2916 struct ieee80211_vif *vif,
2917 struct ieee80211_if_conf *conf)
2919 struct iwl_priv *priv = hw->priv;
2920 DECLARE_MAC_BUF(mac);
2921 unsigned long flags;
2927 if (priv->vif != vif) {
2928 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
2932 if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
2933 (!conf->beacon || !conf->ssid_len)) {
2935 ("Leaving in AP mode because HostAPD is not ready.\n");
2939 if (!iwl_is_alive(priv))
2942 mutex_lock(&priv->mutex);
2945 IWL_DEBUG_MAC80211("bssid: %s\n",
2946 print_mac(mac, conf->bssid));
2949 * very dubious code was here; the probe filtering flag is never set:
2951 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
2952 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
2955 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
2957 conf->bssid = priv->mac_addr;
2958 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
2959 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
2960 print_mac(mac, conf->bssid));
2962 if (priv->ibss_beacon)
2963 dev_kfree_skb(priv->ibss_beacon);
2965 priv->ibss_beacon = conf->beacon;
2968 if (iwl_is_rfkill(priv))
2971 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
2972 !is_multicast_ether_addr(conf->bssid)) {
2973 /* If there is currently a HW scan going on in the background
2974 * then we need to cancel it else the RXON below will fail. */
2975 if (iwl_scan_cancel_timeout(priv, 100)) {
2976 IWL_WARNING("Aborted scan still in progress "
2978 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2979 mutex_unlock(&priv->mutex);
2982 memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
2984 /* TODO: Audit driver for usage of these members and see
2985 * if mac80211 deprecates them (priv->bssid looks like it
2986 * shouldn't be there, but I haven't scanned the IBSS code
2987 * to verify) - jpk */
2988 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
2990 if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
2991 iwl4965_config_ap(priv);
2993 rc = iwl4965_commit_rxon(priv);
2994 if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
2995 iwl_rxon_add_station(
2996 priv, priv->active_rxon.bssid_addr, 1);
3000 iwl_scan_cancel_timeout(priv, 100);
3001 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3002 iwl4965_commit_rxon(priv);
3006 spin_lock_irqsave(&priv->lock, flags);
3007 if (!conf->ssid_len)
3008 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
3010 memcpy(priv->essid, conf->ssid, conf->ssid_len);
3012 priv->essid_len = conf->ssid_len;
3013 spin_unlock_irqrestore(&priv->lock, flags);
3015 IWL_DEBUG_MAC80211("leave\n");
3016 mutex_unlock(&priv->mutex);
3021 static void iwl4965_configure_filter(struct ieee80211_hw *hw,
3022 unsigned int changed_flags,
3023 unsigned int *total_flags,
3024 int mc_count, struct dev_addr_list *mc_list)
3028 * see also iwl4965_connection_init_rx_config
3030 struct iwl_priv *priv = hw->priv;
3032 if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
3033 if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
3034 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
3035 IEEE80211_IF_TYPE_MNTR,
3036 changed_flags, *total_flags);
3037 /* queue work 'cuz mac80211 is holding a lock which
3038 * prevents us from issuing (synchronous) f/w cmds */
3039 queue_work(priv->workqueue, &priv->set_monitor);
3040 new_flags &= FIF_PROMISC_IN_BSS |
3045 *total_flags = new_flags;
3048 static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
3049 struct ieee80211_if_init_conf *conf)
3051 struct iwl_priv *priv = hw->priv;
3053 IWL_DEBUG_MAC80211("enter\n");
3055 mutex_lock(&priv->mutex);
3057 if (iwl_is_ready_rf(priv)) {
3058 iwl_scan_cancel_timeout(priv, 100);
3059 cancel_delayed_work(&priv->post_associate);
3060 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3061 iwl4965_commit_rxon(priv);
3063 if (priv->vif == conf->vif) {
3065 memset(priv->bssid, 0, ETH_ALEN);
3066 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
3067 priv->essid_len = 0;
3069 mutex_unlock(&priv->mutex);
3071 IWL_DEBUG_MAC80211("leave\n");
3075 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
3076 static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
3077 struct ieee80211_vif *vif,
3078 struct ieee80211_bss_conf *bss_conf,
3081 struct iwl_priv *priv = hw->priv;
3083 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
3085 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
3086 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
3087 bss_conf->use_short_preamble);
3088 if (bss_conf->use_short_preamble)
3089 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
3091 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
3094 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
3095 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
3096 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
3097 priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
3099 priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
3102 if (changes & BSS_CHANGED_HT) {
3103 IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
3104 iwl4965_ht_conf(priv, bss_conf);
3105 iwl_set_rxon_chain(priv);
3108 if (changes & BSS_CHANGED_ASSOC) {
3109 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
3110 /* This should never happen as this function should
3111 * never be called from interrupt context. */
3112 if (WARN_ON_ONCE(in_interrupt()))
3114 if (bss_conf->assoc) {
3115 priv->assoc_id = bss_conf->aid;
3116 priv->beacon_int = bss_conf->beacon_int;
3117 priv->timestamp = bss_conf->timestamp;
3118 priv->assoc_capability = bss_conf->assoc_capability;
3119 priv->next_scan_jiffies = jiffies +
3120 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
3121 mutex_lock(&priv->mutex);
3122 iwl4965_post_associate(priv);
3123 mutex_unlock(&priv->mutex);
3126 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
3128 } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
3129 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
3130 iwl_send_rxon_assoc(priv);
3135 static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
3138 unsigned long flags;
3139 struct iwl_priv *priv = hw->priv;
3141 IWL_DEBUG_MAC80211("enter\n");
3143 mutex_lock(&priv->mutex);
3144 spin_lock_irqsave(&priv->lock, flags);
3146 if (!iwl_is_ready_rf(priv)) {
3148 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
3152 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
3154 IWL_ERROR("ERROR: APs don't scan\n");
3158 /* we don't schedule scan within next_scan_jiffies period */
3159 if (priv->next_scan_jiffies &&
3160 time_after(priv->next_scan_jiffies, jiffies)) {
3164 /* if we just finished scan ask for delay */
3165 if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies +
3166 IWL_DELAY_NEXT_SCAN, jiffies)) {
3171 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
3172 iwl_escape_essid(ssid, len), (int)len);
3174 priv->one_direct_scan = 1;
3175 priv->direct_ssid_len = (u8)
3176 min((u8) len, (u8) IW_ESSID_MAX_SIZE);
3177 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
3179 priv->one_direct_scan = 0;
3181 rc = iwl_scan_initiate(priv);
3183 IWL_DEBUG_MAC80211("leave\n");
3186 spin_unlock_irqrestore(&priv->lock, flags);
3187 mutex_unlock(&priv->mutex);
3192 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
3193 struct ieee80211_key_conf *keyconf, const u8 *addr,
3194 u32 iv32, u16 *phase1key)
3196 struct iwl_priv *priv = hw->priv;
3197 u8 sta_id = IWL_INVALID_STATION;
3198 unsigned long flags;
3199 __le16 key_flags = 0;
3201 DECLARE_MAC_BUF(mac);
3203 IWL_DEBUG_MAC80211("enter\n");
3205 sta_id = iwl_find_station(priv, addr);
3206 if (sta_id == IWL_INVALID_STATION) {
3207 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
3208 print_mac(mac, addr));
3212 iwl_scan_cancel_timeout(priv, 100);
3214 key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
3215 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
3216 key_flags &= ~STA_KEY_FLG_INVALID;
3218 if (sta_id == priv->hw_params.bcast_sta_id)
3219 key_flags |= STA_KEY_MULTICAST_MSK;
3221 spin_lock_irqsave(&priv->sta_lock, flags);
3223 priv->stations[sta_id].sta.key.key_flags = key_flags;
3224 priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
3226 for (i = 0; i < 5; i++)
3227 priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
3228 cpu_to_le16(phase1key[i]);
3230 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
3231 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
3233 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
3235 spin_unlock_irqrestore(&priv->sta_lock, flags);
3237 IWL_DEBUG_MAC80211("leave\n");
3240 static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3241 const u8 *local_addr, const u8 *addr,
3242 struct ieee80211_key_conf *key)
3244 struct iwl_priv *priv = hw->priv;
3245 DECLARE_MAC_BUF(mac);
3247 u8 sta_id = IWL_INVALID_STATION;
3248 u8 is_default_wep_key = 0;
3250 IWL_DEBUG_MAC80211("enter\n");
3252 if (priv->hw_params.sw_crypto) {
3253 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
3257 if (is_zero_ether_addr(addr))
3258 /* only support pairwise keys */
3261 sta_id = iwl_find_station(priv, addr);
3262 if (sta_id == IWL_INVALID_STATION) {
3263 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
3264 print_mac(mac, addr));
3269 mutex_lock(&priv->mutex);
3270 iwl_scan_cancel_timeout(priv, 100);
3271 mutex_unlock(&priv->mutex);
3273 /* If we are getting WEP group key and we didn't receive any key mapping
3274 * so far, we are in legacy wep mode (group key only), otherwise we are
3276 * In legacy wep mode, we use another host command to the uCode */
3277 if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
3278 priv->iw_mode != IEEE80211_IF_TYPE_AP) {
3280 is_default_wep_key = !priv->key_mapping_key;
3282 is_default_wep_key =
3283 (key->hw_key_idx == HW_KEY_DEFAULT);
3288 if (is_default_wep_key)
3289 ret = iwl_set_default_wep_key(priv, key);
3291 ret = iwl_set_dynamic_key(priv, key, sta_id);
3293 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
3296 if (is_default_wep_key)
3297 ret = iwl_remove_default_wep_key(priv, key);
3299 ret = iwl_remove_dynamic_key(priv, key, sta_id);
3301 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
3307 IWL_DEBUG_MAC80211("leave\n");
3312 static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
3313 const struct ieee80211_tx_queue_params *params)
3315 struct iwl_priv *priv = hw->priv;
3316 unsigned long flags;
3319 IWL_DEBUG_MAC80211("enter\n");
3321 if (!iwl_is_ready_rf(priv)) {
3322 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3326 if (queue >= AC_NUM) {
3327 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
3331 if (!priv->qos_data.qos_enable) {
3332 priv->qos_data.qos_active = 0;
3333 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
3336 q = AC_NUM - 1 - queue;
3338 spin_lock_irqsave(&priv->lock, flags);
3340 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
3341 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
3342 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
3343 priv->qos_data.def_qos_parm.ac[q].edca_txop =
3344 cpu_to_le16((params->txop * 32));
3346 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
3347 priv->qos_data.qos_active = 1;
3349 spin_unlock_irqrestore(&priv->lock, flags);
3351 mutex_lock(&priv->mutex);
3352 if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
3353 iwl4965_activate_qos(priv, 1);
3354 else if (priv->assoc_id && iwl_is_associated(priv))
3355 iwl4965_activate_qos(priv, 0);
3357 mutex_unlock(&priv->mutex);
3359 IWL_DEBUG_MAC80211("leave\n");
3363 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
3364 struct ieee80211_tx_queue_stats *stats)
3366 struct iwl_priv *priv = hw->priv;
3368 struct iwl_tx_queue *txq;
3369 struct iwl_queue *q;
3370 unsigned long flags;
3372 IWL_DEBUG_MAC80211("enter\n");
3374 if (!iwl_is_ready_rf(priv)) {
3375 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3379 spin_lock_irqsave(&priv->lock, flags);
3381 for (i = 0; i < AC_NUM; i++) {
3382 txq = &priv->txq[i];
3384 avail = iwl_queue_space(q);
3386 stats[i].len = q->n_window - avail;
3387 stats[i].limit = q->n_window - q->high_mark;
3388 stats[i].count = q->n_window;
3391 spin_unlock_irqrestore(&priv->lock, flags);
3393 IWL_DEBUG_MAC80211("leave\n");
3398 static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
3399 struct ieee80211_low_level_stats *stats)
3401 struct iwl_priv *priv = hw->priv;
3404 IWL_DEBUG_MAC80211("enter\n");
3405 IWL_DEBUG_MAC80211("leave\n");
3410 static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw)
3412 struct iwl_priv *priv;
3415 IWL_DEBUG_MAC80211("enter\n");
3416 IWL_DEBUG_MAC80211("leave\n");
3421 static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
3423 struct iwl_priv *priv = hw->priv;
3424 unsigned long flags;
3426 mutex_lock(&priv->mutex);
3427 IWL_DEBUG_MAC80211("enter\n");
3429 spin_lock_irqsave(&priv->lock, flags);
3430 memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
3431 spin_unlock_irqrestore(&priv->lock, flags);
3433 iwl_reset_qos(priv);
3435 cancel_delayed_work(&priv->post_associate);
3437 spin_lock_irqsave(&priv->lock, flags);
3439 priv->assoc_capability = 0;
3440 priv->assoc_station_added = 0;
3442 /* new association get rid of ibss beacon skb */
3443 if (priv->ibss_beacon)
3444 dev_kfree_skb(priv->ibss_beacon);
3446 priv->ibss_beacon = NULL;
3448 priv->beacon_int = priv->hw->conf.beacon_int;
3449 priv->timestamp = 0;
3450 if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
3451 priv->beacon_int = 0;
3453 spin_unlock_irqrestore(&priv->lock, flags);
3455 if (!iwl_is_ready_rf(priv)) {
3456 IWL_DEBUG_MAC80211("leave - not ready\n");
3457 mutex_unlock(&priv->mutex);
3461 /* we are restarting association process
3462 * clear RXON_FILTER_ASSOC_MSK bit
3464 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
3465 iwl_scan_cancel_timeout(priv, 100);
3466 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3467 iwl4965_commit_rxon(priv);
3470 iwl_power_update_mode(priv, 0);
3472 /* Per mac80211.h: This is only used in IBSS mode... */
3473 if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
3475 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
3476 mutex_unlock(&priv->mutex);
3480 iwl4965_set_rate(priv);
3482 mutex_unlock(&priv->mutex);
3484 IWL_DEBUG_MAC80211("leave\n");
3487 static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
3489 struct iwl_priv *priv = hw->priv;
3490 unsigned long flags;
3492 mutex_lock(&priv->mutex);
3493 IWL_DEBUG_MAC80211("enter\n");
3495 if (!iwl_is_ready_rf(priv)) {
3496 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3497 mutex_unlock(&priv->mutex);
3501 if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
3502 IWL_DEBUG_MAC80211("leave - not IBSS\n");
3503 mutex_unlock(&priv->mutex);
3507 spin_lock_irqsave(&priv->lock, flags);
3509 if (priv->ibss_beacon)
3510 dev_kfree_skb(priv->ibss_beacon);
3512 priv->ibss_beacon = skb;
3516 IWL_DEBUG_MAC80211("leave\n");
3517 spin_unlock_irqrestore(&priv->lock, flags);
3519 iwl_reset_qos(priv);
3521 iwl4965_post_associate(priv);
3523 mutex_unlock(&priv->mutex);
3528 /*****************************************************************************
3532 *****************************************************************************/
3534 #ifdef CONFIG_IWLWIFI_DEBUG
3537 * The following adds a new attribute to the sysfs representation
3538 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
3539 * used for controlling the debug level.
3541 * See the level definitions in iwl for details.
3544 static ssize_t show_debug_level(struct device *d,
3545 struct device_attribute *attr, char *buf)
3547 struct iwl_priv *priv = d->driver_data;
3549 return sprintf(buf, "0x%08X\n", priv->debug_level);
3551 static ssize_t store_debug_level(struct device *d,
3552 struct device_attribute *attr,
3553 const char *buf, size_t count)
3555 struct iwl_priv *priv = d->driver_data;
3556 char *p = (char *)buf;
3559 val = simple_strtoul(p, &p, 0);
3561 printk(KERN_INFO DRV_NAME
3562 ": %s is not in hex or decimal form.\n", buf);
3564 priv->debug_level = val;
3566 return strnlen(buf, count);
3569 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
3570 show_debug_level, store_debug_level);
3573 #endif /* CONFIG_IWLWIFI_DEBUG */
3576 static ssize_t show_version(struct device *d,
3577 struct device_attribute *attr, char *buf)
3579 struct iwl_priv *priv = d->driver_data;
3580 struct iwl_alive_resp *palive = &priv->card_alive;
3584 if (palive->is_valid)
3585 pos += sprintf(buf + pos,
3586 "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
3587 "fw type: 0x%01X 0x%01X\n",
3588 palive->ucode_major, palive->ucode_minor,
3589 palive->sw_rev[0], palive->sw_rev[1],
3590 palive->ver_type, palive->ver_subtype);
3592 pos += sprintf(buf + pos, "fw not loaded\n");
3595 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
3596 pos += sprintf(buf + pos, "EEPROM version: 0x%x\n",
3599 pos += sprintf(buf + pos, "EEPROM not initialzed\n");
3605 static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
3607 static ssize_t show_temperature(struct device *d,
3608 struct device_attribute *attr, char *buf)
3610 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3612 if (!iwl_is_alive(priv))
3615 return sprintf(buf, "%d\n", priv->temperature);
3618 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
3620 static ssize_t show_rs_window(struct device *d,
3621 struct device_attribute *attr,
3624 struct iwl_priv *priv = d->driver_data;
3625 return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID);
3627 static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
3629 static ssize_t show_tx_power(struct device *d,
3630 struct device_attribute *attr, char *buf)
3632 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3633 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
3636 static ssize_t store_tx_power(struct device *d,
3637 struct device_attribute *attr,
3638 const char *buf, size_t count)
3640 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3641 char *p = (char *)buf;
3644 val = simple_strtoul(p, &p, 10);
3646 printk(KERN_INFO DRV_NAME
3647 ": %s is not in decimal form.\n", buf);
3649 iwl_set_tx_power(priv, val, false);
3654 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
3656 static ssize_t show_flags(struct device *d,
3657 struct device_attribute *attr, char *buf)
3659 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3661 return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
3664 static ssize_t store_flags(struct device *d,
3665 struct device_attribute *attr,
3666 const char *buf, size_t count)
3668 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3669 u32 flags = simple_strtoul(buf, NULL, 0);
3671 mutex_lock(&priv->mutex);
3672 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
3673 /* Cancel any currently running scans... */
3674 if (iwl_scan_cancel_timeout(priv, 100))
3675 IWL_WARNING("Could not cancel scan.\n");
3677 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
3679 priv->staging_rxon.flags = cpu_to_le32(flags);
3680 iwl4965_commit_rxon(priv);
3683 mutex_unlock(&priv->mutex);
3688 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
3690 static ssize_t show_filter_flags(struct device *d,
3691 struct device_attribute *attr, char *buf)
3693 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3695 return sprintf(buf, "0x%04X\n",
3696 le32_to_cpu(priv->active_rxon.filter_flags));
3699 static ssize_t store_filter_flags(struct device *d,
3700 struct device_attribute *attr,
3701 const char *buf, size_t count)
3703 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3704 u32 filter_flags = simple_strtoul(buf, NULL, 0);
3706 mutex_lock(&priv->mutex);
3707 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
3708 /* Cancel any currently running scans... */
3709 if (iwl_scan_cancel_timeout(priv, 100))
3710 IWL_WARNING("Could not cancel scan.\n");
3712 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
3713 "0x%04X\n", filter_flags);
3714 priv->staging_rxon.filter_flags =
3715 cpu_to_le32(filter_flags);
3716 iwl4965_commit_rxon(priv);
3719 mutex_unlock(&priv->mutex);
3724 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
3725 store_filter_flags);
3727 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3729 static ssize_t show_measurement(struct device *d,
3730 struct device_attribute *attr, char *buf)
3732 struct iwl_priv *priv = dev_get_drvdata(d);
3733 struct iwl4965_spectrum_notification measure_report;
3734 u32 size = sizeof(measure_report), len = 0, ofs = 0;
3735 u8 *data = (u8 *) & measure_report;
3736 unsigned long flags;
3738 spin_lock_irqsave(&priv->lock, flags);
3739 if (!(priv->measurement_status & MEASUREMENT_READY)) {
3740 spin_unlock_irqrestore(&priv->lock, flags);
3743 memcpy(&measure_report, &priv->measure_report, size);
3744 priv->measurement_status = 0;
3745 spin_unlock_irqrestore(&priv->lock, flags);
3747 while (size && (PAGE_SIZE - len)) {
3748 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3749 PAGE_SIZE - len, 1);
3751 if (PAGE_SIZE - len)
3755 size -= min(size, 16U);
3761 static ssize_t store_measurement(struct device *d,
3762 struct device_attribute *attr,
3763 const char *buf, size_t count)
3765 struct iwl_priv *priv = dev_get_drvdata(d);
3766 struct ieee80211_measurement_params params = {
3767 .channel = le16_to_cpu(priv->active_rxon.channel),
3768 .start_time = cpu_to_le64(priv->last_tsf),
3769 .duration = cpu_to_le16(1),
3771 u8 type = IWL_MEASURE_BASIC;
3777 strncpy(buffer, buf, min(sizeof(buffer), count));
3778 channel = simple_strtoul(p, NULL, 0);
3780 params.channel = channel;
3783 while (*p && *p != ' ')
3786 type = simple_strtoul(p + 1, NULL, 0);
3789 IWL_DEBUG_INFO("Invoking measurement of type %d on "
3790 "channel %d (for '%s')\n", type, params.channel, buf);
3791 iwl4965_get_measurement(priv, ¶ms, type);
3796 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
3797 show_measurement, store_measurement);
3798 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
3800 static ssize_t store_retry_rate(struct device *d,
3801 struct device_attribute *attr,
3802 const char *buf, size_t count)
3804 struct iwl_priv *priv = dev_get_drvdata(d);
3806 priv->retry_rate = simple_strtoul(buf, NULL, 0);
3807 if (priv->retry_rate <= 0)
3808 priv->retry_rate = 1;
3813 static ssize_t show_retry_rate(struct device *d,
3814 struct device_attribute *attr, char *buf)
3816 struct iwl_priv *priv = dev_get_drvdata(d);
3817 return sprintf(buf, "%d", priv->retry_rate);
3820 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
3823 static ssize_t store_power_level(struct device *d,
3824 struct device_attribute *attr,
3825 const char *buf, size_t count)
3827 struct iwl_priv *priv = dev_get_drvdata(d);
3831 mode = simple_strtoul(buf, NULL, 0);
3832 mutex_lock(&priv->mutex);
3834 if (!iwl_is_ready(priv)) {
3839 rc = iwl_power_set_user_mode(priv, mode);
3841 IWL_DEBUG_MAC80211("failed setting power mode.\n");
3847 mutex_unlock(&priv->mutex);
3851 #define MAX_WX_STRING 80
3853 /* Values are in microsecond */
3854 static const s32 timeout_duration[] = {
3861 static const s32 period_duration[] = {
3869 static ssize_t show_power_level(struct device *d,
3870 struct device_attribute *attr, char *buf)
3872 struct iwl_priv *priv = dev_get_drvdata(d);
3873 int level = priv->power_data.power_mode;
3876 p += sprintf(p, "%d ", level);
3878 case IWL_POWER_MODE_CAM:
3880 p += sprintf(p, "(AC)");
3882 case IWL_POWER_BATTERY:
3883 p += sprintf(p, "(BATTERY)");
3887 "(Timeout %dms, Period %dms)",
3888 timeout_duration[level - 1] / 1000,
3889 period_duration[level - 1] / 1000);
3892 if (!(priv->power_mode & IWL_POWER_ENABLED))
3893 p += sprintf(p, " OFF\n");
3895 p += sprintf(p, " \n");
3897 p += sprintf(p, " \n");
3898 return (p - buf + 1);
3901 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
3904 static ssize_t show_channels(struct device *d,
3905 struct device_attribute *attr, char *buf)
3908 struct iwl_priv *priv = dev_get_drvdata(d);
3909 struct ieee80211_channel *channels = NULL;
3910 const struct ieee80211_supported_band *supp_band = NULL;
3914 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
3917 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
3918 channels = supp_band->channels;
3919 count = supp_band->n_channels;
3921 len += sprintf(&buf[len],
3922 "Displaying %d channels in 2.4GHz band "
3923 "(802.11bg):\n", count);
3925 for (i = 0; i < count; i++)
3926 len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
3927 ieee80211_frequency_to_channel(
3928 channels[i].center_freq),
3929 channels[i].max_power,
3930 channels[i].flags & IEEE80211_CHAN_RADAR ?
3931 " (IEEE 802.11h required)" : "",
3932 (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
3933 || (channels[i].flags &
3934 IEEE80211_CHAN_RADAR)) ? "" :
3937 IEEE80211_CHAN_PASSIVE_SCAN ?
3938 "passive only" : "active/passive");
3940 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
3941 channels = supp_band->channels;
3942 count = supp_band->n_channels;
3944 len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
3945 "(802.11a):\n", count);
3947 for (i = 0; i < count; i++)
3948 len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
3949 ieee80211_frequency_to_channel(
3950 channels[i].center_freq),
3951 channels[i].max_power,
3952 channels[i].flags & IEEE80211_CHAN_RADAR ?
3953 " (IEEE 802.11h required)" : "",
3954 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
3955 || (channels[i].flags &
3956 IEEE80211_CHAN_RADAR)) ? "" :
3959 IEEE80211_CHAN_PASSIVE_SCAN ?
3960 "passive only" : "active/passive");
3965 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
3967 static ssize_t show_statistics(struct device *d,
3968 struct device_attribute *attr, char *buf)
3970 struct iwl_priv *priv = dev_get_drvdata(d);
3971 u32 size = sizeof(struct iwl_notif_statistics);
3972 u32 len = 0, ofs = 0;
3973 u8 *data = (u8 *) & priv->statistics;
3976 if (!iwl_is_alive(priv))
3979 mutex_lock(&priv->mutex);
3980 rc = iwl_send_statistics_request(priv, 0);
3981 mutex_unlock(&priv->mutex);
3985 "Error sending statistics request: 0x%08X\n", rc);
3989 while (size && (PAGE_SIZE - len)) {
3990 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3991 PAGE_SIZE - len, 1);
3993 if (PAGE_SIZE - len)
3997 size -= min(size, 16U);
4003 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
4005 static ssize_t show_status(struct device *d,
4006 struct device_attribute *attr, char *buf)
4008 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
4009 if (!iwl_is_alive(priv))
4011 return sprintf(buf, "0x%08x\n", (int)priv->status);
4014 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
4016 /*****************************************************************************
4018 * driver setup and teardown
4020 *****************************************************************************/
4022 static void iwl_setup_deferred_work(struct iwl_priv *priv)
4024 priv->workqueue = create_workqueue(DRV_NAME);
4026 init_waitqueue_head(&priv->wait_command_queue);
4028 INIT_WORK(&priv->up, iwl4965_bg_up);
4029 INIT_WORK(&priv->restart, iwl4965_bg_restart);
4030 INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
4031 INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
4032 INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
4033 INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
4034 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
4035 INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate);
4036 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
4037 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
4039 /* FIXME : remove when resolved PENDING */
4040 INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
4041 iwl_setup_scan_deferred_work(priv);
4043 if (priv->cfg->ops->lib->setup_deferred_work)
4044 priv->cfg->ops->lib->setup_deferred_work(priv);
4046 init_timer(&priv->statistics_periodic);
4047 priv->statistics_periodic.data = (unsigned long)priv;
4048 priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
4050 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
4051 iwl4965_irq_tasklet, (unsigned long)priv);
4054 static void iwl_cancel_deferred_work(struct iwl_priv *priv)
4056 if (priv->cfg->ops->lib->cancel_deferred_work)
4057 priv->cfg->ops->lib->cancel_deferred_work(priv);
4059 cancel_delayed_work_sync(&priv->init_alive_start);
4060 cancel_delayed_work(&priv->scan_check);
4061 cancel_delayed_work(&priv->alive_start);
4062 cancel_delayed_work(&priv->post_associate);
4063 cancel_work_sync(&priv->beacon_update);
4064 del_timer_sync(&priv->statistics_periodic);
4067 static struct attribute *iwl4965_sysfs_entries[] = {
4068 &dev_attr_channels.attr,
4069 &dev_attr_flags.attr,
4070 &dev_attr_filter_flags.attr,
4071 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
4072 &dev_attr_measurement.attr,
4074 &dev_attr_power_level.attr,
4075 &dev_attr_retry_rate.attr,
4076 &dev_attr_rs_window.attr,
4077 &dev_attr_statistics.attr,
4078 &dev_attr_status.attr,
4079 &dev_attr_temperature.attr,
4080 &dev_attr_tx_power.attr,
4081 #ifdef CONFIG_IWLWIFI_DEBUG
4082 &dev_attr_debug_level.attr,
4084 &dev_attr_version.attr,
4089 static struct attribute_group iwl4965_attribute_group = {
4090 .name = NULL, /* put in device directory */
4091 .attrs = iwl4965_sysfs_entries,
4094 static struct ieee80211_ops iwl4965_hw_ops = {
4095 .tx = iwl4965_mac_tx,
4096 .start = iwl4965_mac_start,
4097 .stop = iwl4965_mac_stop,
4098 .add_interface = iwl4965_mac_add_interface,
4099 .remove_interface = iwl4965_mac_remove_interface,
4100 .config = iwl4965_mac_config,
4101 .config_interface = iwl4965_mac_config_interface,
4102 .configure_filter = iwl4965_configure_filter,
4103 .set_key = iwl4965_mac_set_key,
4104 .update_tkip_key = iwl4965_mac_update_tkip_key,
4105 .get_stats = iwl4965_mac_get_stats,
4106 .get_tx_stats = iwl4965_mac_get_tx_stats,
4107 .conf_tx = iwl4965_mac_conf_tx,
4108 .get_tsf = iwl4965_mac_get_tsf,
4109 .reset_tsf = iwl4965_mac_reset_tsf,
4110 .beacon_update = iwl4965_mac_beacon_update,
4111 .bss_info_changed = iwl4965_bss_info_changed,
4112 .ampdu_action = iwl4965_mac_ampdu_action,
4113 .hw_scan = iwl4965_mac_hw_scan
4116 static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
4119 struct iwl_priv *priv;
4120 struct ieee80211_hw *hw;
4121 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
4122 unsigned long flags;
4123 DECLARE_MAC_BUF(mac);
4125 /************************
4126 * 1. Allocating HW data
4127 ************************/
4129 /* Disabling hardware scan means that mac80211 will perform scans
4130 * "the hard way", rather than using device's scan. */
4131 if (cfg->mod_params->disable_hw_scan) {
4132 if (cfg->mod_params->debug & IWL_DL_INFO)
4133 dev_printk(KERN_DEBUG, &(pdev->dev),
4134 "Disabling hw_scan\n");
4135 iwl4965_hw_ops.hw_scan = NULL;
4138 hw = iwl_alloc_all(cfg, &iwl4965_hw_ops);
4144 /* At this point both hw and priv are allocated. */
4146 SET_IEEE80211_DEV(hw, &pdev->dev);
4148 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
4150 priv->pci_dev = pdev;
4152 #ifdef CONFIG_IWLWIFI_DEBUG
4153 priv->debug_level = priv->cfg->mod_params->debug;
4154 atomic_set(&priv->restrict_refcnt, 0);
4157 /**************************
4158 * 2. Initializing PCI bus
4159 **************************/
4160 if (pci_enable_device(pdev)) {
4162 goto out_ieee80211_free_hw;
4165 pci_set_master(pdev);
4167 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
4169 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
4171 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
4173 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
4174 /* both attempts failed: */
4176 printk(KERN_WARNING "%s: No suitable DMA available.\n",
4178 goto out_pci_disable_device;
4182 err = pci_request_regions(pdev, DRV_NAME);
4184 goto out_pci_disable_device;
4186 pci_set_drvdata(pdev, priv);
4188 /* We disable the RETRY_TIMEOUT register (0x41) to keep
4189 * PCI Tx retries from interfering with C3 CPU state */
4190 pci_write_config_byte(pdev, 0x41, 0x00);
4192 /***********************
4193 * 3. Read REV register
4194 ***********************/
4195 priv->hw_base = pci_iomap(pdev, 0, 0);
4196 if (!priv->hw_base) {
4198 goto out_pci_release_regions;
4201 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
4202 (unsigned long long) pci_resource_len(pdev, 0));
4203 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
4205 iwl_hw_detect(priv);
4206 printk(KERN_INFO DRV_NAME
4207 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
4208 priv->cfg->name, priv->hw_rev);
4211 err = priv->cfg->ops->lib->apm_ops.init(priv);
4213 IWL_DEBUG_INFO("Failed to init APMG\n");
4219 /* Read the EEPROM */
4220 err = iwl_eeprom_init(priv);
4222 IWL_ERROR("Unable to init EEPROM\n");
4225 err = iwl_eeprom_check_version(priv);
4229 /* extract MAC Address */
4230 iwl_eeprom_get_mac(priv, priv->mac_addr);
4231 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
4232 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
4234 /************************
4235 * 5. Setup HW constants
4236 ************************/
4237 /* Device-specific setup */
4238 if (priv->cfg->ops->lib->set_hw_params(priv)) {
4239 IWL_ERROR("failed to set hw parameters\n");
4240 goto out_free_eeprom;
4243 /*******************
4245 *******************/
4247 err = iwl_init_drv(priv);
4249 goto out_free_eeprom;
4250 /* At this point both hw and priv are initialized. */
4252 /**********************************
4253 * 7. Initialize module parameters
4254 **********************************/
4256 /* Disable radio (SW RF KILL) via parameter when loading driver */
4257 if (priv->cfg->mod_params->disable) {
4258 set_bit(STATUS_RF_KILL_SW, &priv->status);
4259 IWL_DEBUG_INFO("Radio disabled.\n");
4262 /********************
4264 ********************/
4265 spin_lock_irqsave(&priv->lock, flags);
4266 iwl4965_disable_interrupts(priv);
4267 spin_unlock_irqrestore(&priv->lock, flags);
4269 err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
4271 IWL_ERROR("failed to create sysfs device attributes\n");
4272 goto out_uninit_drv;
4276 iwl_setup_deferred_work(priv);
4277 iwl_setup_rx_handlers(priv);
4279 /********************
4281 ********************/
4282 pci_save_state(pdev);
4283 pci_disable_device(pdev);
4285 /**********************************
4286 * 10. Setup and register mac80211
4287 **********************************/
4289 err = iwl_setup_mac(priv);
4291 goto out_remove_sysfs;
4293 err = iwl_dbgfs_register(priv, DRV_NAME);
4295 IWL_ERROR("failed to create debugfs files\n");
4297 err = iwl_rfkill_init(priv);
4299 IWL_ERROR("Unable to initialize RFKILL system. "
4300 "Ignoring error: %d\n", err);
4301 iwl_power_initialize(priv);
4305 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
4307 iwl_uninit_drv(priv);
4309 iwl_eeprom_free(priv);
4311 pci_iounmap(pdev, priv->hw_base);
4312 out_pci_release_regions:
4313 pci_release_regions(pdev);
4314 pci_set_drvdata(pdev, NULL);
4315 out_pci_disable_device:
4316 pci_disable_device(pdev);
4317 out_ieee80211_free_hw:
4318 ieee80211_free_hw(priv->hw);
4323 static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
4325 struct iwl_priv *priv = pci_get_drvdata(pdev);
4326 unsigned long flags;
4331 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
4333 iwl_dbgfs_unregister(priv);
4334 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
4336 if (priv->mac80211_registered) {
4337 ieee80211_unregister_hw(priv->hw);
4338 priv->mac80211_registered = 0;
4341 set_bit(STATUS_EXIT_PENDING, &priv->status);
4345 /* make sure we flush any pending irq or
4346 * tasklet for the driver
4348 spin_lock_irqsave(&priv->lock, flags);
4349 iwl4965_disable_interrupts(priv);
4350 spin_unlock_irqrestore(&priv->lock, flags);
4352 iwl_synchronize_irq(priv);
4354 iwl_rfkill_unregister(priv);
4355 iwl4965_dealloc_ucode_pci(priv);
4358 iwl_rx_queue_free(priv, &priv->rxq);
4359 iwl_hw_txq_ctx_free(priv);
4361 iwl_clear_stations_table(priv);
4362 iwl_eeprom_free(priv);
4365 /*netif_stop_queue(dev); */
4366 flush_workqueue(priv->workqueue);
4368 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
4369 * priv->workqueue... so we can't take down the workqueue
4371 destroy_workqueue(priv->workqueue);
4372 priv->workqueue = NULL;
4374 pci_iounmap(pdev, priv->hw_base);
4375 pci_release_regions(pdev);
4376 pci_disable_device(pdev);
4377 pci_set_drvdata(pdev, NULL);
4379 iwl_uninit_drv(priv);
4381 if (priv->ibss_beacon)
4382 dev_kfree_skb(priv->ibss_beacon);
4384 ieee80211_free_hw(priv->hw);
4389 static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
4391 struct iwl_priv *priv = pci_get_drvdata(pdev);
4393 if (priv->is_open) {
4394 set_bit(STATUS_IN_SUSPEND, &priv->status);
4395 iwl4965_mac_stop(priv->hw);
4399 pci_set_power_state(pdev, PCI_D3hot);
4404 static int iwl4965_pci_resume(struct pci_dev *pdev)
4406 struct iwl_priv *priv = pci_get_drvdata(pdev);
4408 pci_set_power_state(pdev, PCI_D0);
4411 iwl4965_mac_start(priv->hw);
4413 clear_bit(STATUS_IN_SUSPEND, &priv->status);
4417 #endif /* CONFIG_PM */
4419 /*****************************************************************************
4421 * driver and module entry point
4423 *****************************************************************************/
4425 /* Hardware specific file defines the PCI IDs table for that hardware module */
4426 static struct pci_device_id iwl_hw_card_ids[] = {
4427 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
4428 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
4429 #ifdef CONFIG_IWL5000
4430 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
4431 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
4432 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)},
4433 #endif /* CONFIG_IWL5000 */
4436 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
4438 static struct pci_driver iwl_driver = {
4440 .id_table = iwl_hw_card_ids,
4441 .probe = iwl4965_pci_probe,
4442 .remove = __devexit_p(iwl4965_pci_remove),
4444 .suspend = iwl4965_pci_suspend,
4445 .resume = iwl4965_pci_resume,
4449 static int __init iwl4965_init(void)
4453 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
4454 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
4456 ret = iwl4965_rate_control_register();
4458 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
4462 ret = pci_register_driver(&iwl_driver);
4464 IWL_ERROR("Unable to initialize PCI module\n");
4465 goto error_register;
4471 iwl4965_rate_control_unregister();
4475 static void __exit iwl4965_exit(void)
4477 pci_unregister_driver(&iwl_driver);
4478 iwl4965_rate_control_unregister();
4481 module_exit(iwl4965_exit);
4482 module_init(iwl4965_init);