1 /******************************************************************************
3 * Copyright(c) 2003 - 2009 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 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/delay.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/mac80211.h>
45 #include <asm/div64.h>
47 #define DRV_NAME "iwlagn"
49 #include "iwl-eeprom.h"
53 #include "iwl-helpers.h"
55 #include "iwl-calib.h"
58 /******************************************************************************
62 ******************************************************************************/
65 * module name, copyright, version, etc.
67 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
69 #ifdef CONFIG_IWLWIFI_DEBUG
75 #ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
81 #define DRV_VERSION IWLWIFI_VERSION VD VS
84 MODULE_DESCRIPTION(DRV_DESCRIPTION);
85 MODULE_VERSION(DRV_VERSION);
86 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
87 MODULE_LICENSE("GPL");
88 MODULE_ALIAS("iwl4965");
90 /*************** STATION TABLE MANAGEMENT ****
91 * mac80211 should be examined to determine if sta_info is duplicating
92 * the functionality provided here
95 /**************************************************************/
98 * iwl_commit_rxon - commit staging_rxon to hardware
100 * The RXON command in staging_rxon is committed to the hardware and
101 * the active_rxon structure is updated with the new data. This
102 * function correctly transitions out of the RXON_ASSOC_MSK state if
103 * a HW tune is required based on the RXON structure changes.
105 static int iwl_commit_rxon(struct iwl_priv *priv)
107 /* cast away the const for active_rxon in this function */
108 struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
111 !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
113 if (!iwl_is_alive(priv))
116 /* always get timestamp with Rx frame */
117 priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
118 /* allow CTS-to-self if possible. this is relevant only for
119 * 5000, but will not damage 4965 */
120 priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
122 ret = iwl_check_rxon_cmd(priv);
124 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
128 /* If we don't need to send a full RXON, we can use
129 * iwl_rxon_assoc_cmd which is used to reconfigure filter
130 * and other flags for the current radio configuration. */
131 if (!iwl_full_rxon_required(priv)) {
132 ret = iwl_send_rxon_assoc(priv);
134 IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
138 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
142 /* station table will be cleared */
143 priv->assoc_station_added = 0;
145 /* If we are currently associated and the new config requires
146 * an RXON_ASSOC and the new config wants the associated mask enabled,
147 * we must clear the associated from the active configuration
148 * before we apply the new config */
149 if (iwl_is_associated(priv) && new_assoc) {
150 IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
151 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
153 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
154 sizeof(struct iwl_rxon_cmd),
157 /* If the mask clearing failed then we set
158 * active_rxon back to what it was previously */
160 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
161 IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret);
166 IWL_DEBUG_INFO(priv, "Sending RXON\n"
167 "* with%s RXON_FILTER_ASSOC_MSK\n"
170 (new_assoc ? "" : "out"),
171 le16_to_cpu(priv->staging_rxon.channel),
172 priv->staging_rxon.bssid_addr);
174 iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
176 /* Apply the new configuration
177 * RXON unassoc clears the station table in uCode, send it before
178 * we add the bcast station. If assoc bit is set, we will send RXON
179 * after having added the bcast and bssid station.
182 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
183 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
185 IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
188 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
191 iwl_clear_stations_table(priv);
193 if (!priv->error_recovering)
194 priv->start_calib = 0;
196 /* Add the broadcast address so we can send broadcast frames */
197 if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
198 IWL_INVALID_STATION) {
199 IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
203 /* If we have set the ASSOC_MSK and we are in BSS mode then
204 * add the IWL_AP_ID to the station rate table */
206 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
207 ret = iwl_rxon_add_station(priv,
208 priv->active_rxon.bssid_addr, 1);
209 if (ret == IWL_INVALID_STATION) {
211 "Error adding AP address for TX.\n");
214 priv->assoc_station_added = 1;
215 if (priv->default_wep_key &&
216 iwl_send_static_wepkey_cmd(priv, 0))
218 "Could not send WEP static key.\n");
221 /* Apply the new configuration
222 * RXON assoc doesn't clear the station table in uCode,
224 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
225 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
227 IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
230 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
233 iwl_init_sensitivity(priv);
235 /* If we issue a new RXON command which required a tune then we must
236 * send a new TXPOWER command or we won't be able to Tx any frames */
237 ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
239 IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
246 void iwl_update_chain_flags(struct iwl_priv *priv)
249 iwl_set_rxon_chain(priv);
250 iwl_commit_rxon(priv);
253 static void iwl_clear_free_frames(struct iwl_priv *priv)
255 struct list_head *element;
257 IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
260 while (!list_empty(&priv->free_frames)) {
261 element = priv->free_frames.next;
263 kfree(list_entry(element, struct iwl_frame, list));
264 priv->frames_count--;
267 if (priv->frames_count) {
268 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
270 priv->frames_count = 0;
274 static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
276 struct iwl_frame *frame;
277 struct list_head *element;
278 if (list_empty(&priv->free_frames)) {
279 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
281 IWL_ERR(priv, "Could not allocate frame!\n");
285 priv->frames_count++;
289 element = priv->free_frames.next;
291 return list_entry(element, struct iwl_frame, list);
294 static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
296 memset(frame, 0, sizeof(*frame));
297 list_add(&frame->list, &priv->free_frames);
300 static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
301 struct ieee80211_hdr *hdr,
304 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
305 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
306 (priv->iw_mode != NL80211_IFTYPE_AP)))
309 if (priv->ibss_beacon->len > left)
312 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
314 return priv->ibss_beacon->len;
317 static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
318 struct iwl_frame *frame, u8 rate)
320 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
321 unsigned int frame_size;
323 tx_beacon_cmd = &frame->u.beacon;
324 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
326 tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
327 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
329 frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame,
330 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
332 BUG_ON(frame_size > MAX_MPDU_SIZE);
333 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
335 if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
336 tx_beacon_cmd->tx.rate_n_flags =
337 iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
339 tx_beacon_cmd->tx.rate_n_flags =
340 iwl_hw_set_rate_n_flags(rate, 0);
342 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
344 TX_CMD_FLG_STA_RATE_MSK;
346 return sizeof(*tx_beacon_cmd) + frame_size;
348 static int iwl_send_beacon_cmd(struct iwl_priv *priv)
350 struct iwl_frame *frame;
351 unsigned int frame_size;
355 frame = iwl_get_free_frame(priv);
358 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
363 rate = iwl_rate_get_lowest_plcp(priv);
365 frame_size = iwl_hw_get_beacon_cmd(priv, frame, rate);
367 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
370 iwl_free_frame(priv, frame);
375 static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
377 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
379 dma_addr_t addr = get_unaligned_le32(&tb->lo);
380 if (sizeof(dma_addr_t) > sizeof(u32))
382 ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;
387 static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
389 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
391 return le16_to_cpu(tb->hi_n_len) >> 4;
394 static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
395 dma_addr_t addr, u16 len)
397 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
398 u16 hi_n_len = len << 4;
400 put_unaligned_le32(addr, &tb->lo);
401 if (sizeof(dma_addr_t) > sizeof(u32))
402 hi_n_len |= ((addr >> 16) >> 16) & 0xF;
404 tb->hi_n_len = cpu_to_le16(hi_n_len);
406 tfd->num_tbs = idx + 1;
409 static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
411 return tfd->num_tbs & 0x1f;
415 * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
416 * @priv - driver private data
419 * Does NOT advance any TFD circular buffer read/write indexes
420 * Does NOT free the TFD itself (which is within circular buffer)
422 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
424 struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds;
426 struct pci_dev *dev = priv->pci_dev;
427 int index = txq->q.read_ptr;
431 tfd = &tfd_tmp[index];
433 /* Sanity check on number of chunks */
434 num_tbs = iwl_tfd_get_num_tbs(tfd);
436 if (num_tbs >= IWL_NUM_OF_TBS) {
437 IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
438 /* @todo issue fatal error, it is quite serious situation */
444 pci_unmap_single(dev,
445 pci_unmap_addr(&txq->cmd[index]->meta, mapping),
446 pci_unmap_len(&txq->cmd[index]->meta, len),
447 PCI_DMA_BIDIRECTIONAL);
449 /* Unmap chunks, if any. */
450 for (i = 1; i < num_tbs; i++) {
451 pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i),
452 iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);
455 dev_kfree_skb(txq->txb[txq->q.read_ptr].skb[i - 1]);
456 txq->txb[txq->q.read_ptr].skb[i - 1] = NULL;
461 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
462 struct iwl_tx_queue *txq,
463 dma_addr_t addr, u16 len,
467 struct iwl_tfd *tfd, *tfd_tmp;
471 tfd_tmp = (struct iwl_tfd *)txq->tfds;
472 tfd = &tfd_tmp[q->write_ptr];
475 memset(tfd, 0, sizeof(*tfd));
477 num_tbs = iwl_tfd_get_num_tbs(tfd);
479 /* Each TFD can point to a maximum 20 Tx buffers */
480 if (num_tbs >= IWL_NUM_OF_TBS) {
481 IWL_ERR(priv, "Error can not send more than %d chunks\n",
486 BUG_ON(addr & ~DMA_BIT_MASK(36));
487 if (unlikely(addr & ~IWL_TX_DMA_MASK))
488 IWL_ERR(priv, "Unaligned address = %llx\n",
489 (unsigned long long)addr);
491 iwl_tfd_set_tb(tfd, num_tbs, addr, len);
497 * Tell nic where to find circular buffer of Tx Frame Descriptors for
498 * given Tx queue, and enable the DMA channel used for that queue.
500 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
501 * channels supported in hardware.
503 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
504 struct iwl_tx_queue *txq)
508 int txq_id = txq->q.id;
510 spin_lock_irqsave(&priv->lock, flags);
511 ret = iwl_grab_nic_access(priv);
513 spin_unlock_irqrestore(&priv->lock, flags);
517 /* Circular buffer (TFD queue in DRAM) physical base address */
518 iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
519 txq->q.dma_addr >> 8);
521 iwl_release_nic_access(priv);
522 spin_unlock_irqrestore(&priv->lock, flags);
528 /******************************************************************************
530 * Misc. internal state and helper functions
532 ******************************************************************************/
534 static void iwl_ht_conf(struct iwl_priv *priv,
535 struct ieee80211_bss_conf *bss_conf)
537 struct ieee80211_sta_ht_cap *ht_conf;
538 struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
539 struct ieee80211_sta *sta;
541 IWL_DEBUG_MAC80211(priv, "enter: \n");
543 if (!iwl_conf->is_ht)
548 * It is totally wrong to base global information on something
549 * that is valid only when associated, alas, this driver works
550 * that way and I don't know how to fix it.
554 sta = ieee80211_find_sta(priv->hw, priv->bssid);
559 ht_conf = &sta->ht_cap;
561 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
562 iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
563 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
564 iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
566 iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
567 iwl_conf->max_amsdu_size =
568 !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
570 iwl_conf->supported_chan_width =
571 !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
574 * XXX: The HT configuration needs to be moved into iwl_mac_config()
575 * to be done there correctly.
578 iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
579 if (conf_is_ht40_minus(&priv->hw->conf))
580 iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
581 else if (conf_is_ht40_plus(&priv->hw->conf))
582 iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
584 /* If no above or below channel supplied disable FAT channel */
585 if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
586 iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW)
587 iwl_conf->supported_chan_width = 0;
589 iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
591 memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
593 iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0;
594 iwl_conf->ht_protection =
595 bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
596 iwl_conf->non_GF_STA_present =
597 !!(bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
601 IWL_DEBUG_MAC80211(priv, "leave\n");
604 #define MAX_UCODE_BEACON_INTERVAL 4096
606 static u16 iwl_adjust_beacon_interval(u16 beacon_val)
609 u16 beacon_factor = 0;
611 beacon_factor = (beacon_val + MAX_UCODE_BEACON_INTERVAL)
612 / MAX_UCODE_BEACON_INTERVAL;
613 new_val = beacon_val / beacon_factor;
616 new_val = MAX_UCODE_BEACON_INTERVAL;
621 static void iwl_setup_rxon_timing(struct iwl_priv *priv)
624 s32 interval_tm, rem;
626 struct ieee80211_conf *conf = NULL;
629 conf = ieee80211_get_hw_conf(priv->hw);
631 spin_lock_irqsave(&priv->lock, flags);
632 priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
633 priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
635 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
636 beacon_int = iwl_adjust_beacon_interval(priv->beacon_int);
637 priv->rxon_timing.atim_window = 0;
639 beacon_int = iwl_adjust_beacon_interval(conf->beacon_int);
641 /* TODO: we need to get atim_window from upper stack
642 * for now we set to 0 */
643 priv->rxon_timing.atim_window = 0;
646 priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int);
648 tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
649 interval_tm = beacon_int * 1024;
650 rem = do_div(tsf, interval_tm);
651 priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
653 spin_unlock_irqrestore(&priv->lock, flags);
654 IWL_DEBUG_ASSOC(priv, "beacon interval %d beacon timer %d beacon tim %d\n",
655 le16_to_cpu(priv->rxon_timing.beacon_interval),
656 le32_to_cpu(priv->rxon_timing.beacon_init_val),
657 le16_to_cpu(priv->rxon_timing.atim_window));
660 static int iwl_set_mode(struct iwl_priv *priv, int mode)
662 iwl_connection_init_rx_config(priv, mode);
663 iwl_set_rxon_chain(priv);
664 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
666 iwl_clear_stations_table(priv);
668 /* dont commit rxon if rf-kill is on*/
669 if (!iwl_is_ready_rf(priv))
672 cancel_delayed_work(&priv->scan_check);
673 if (iwl_scan_cancel_timeout(priv, 100)) {
674 IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
675 IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n");
679 iwl_commit_rxon(priv);
684 /******************************************************************************
686 * Generic RX handler implementations
688 ******************************************************************************/
689 static void iwl_rx_reply_alive(struct iwl_priv *priv,
690 struct iwl_rx_mem_buffer *rxb)
692 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
693 struct iwl_alive_resp *palive;
694 struct delayed_work *pwork;
696 palive = &pkt->u.alive_frame;
698 IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
700 palive->is_valid, palive->ver_type,
701 palive->ver_subtype);
703 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
704 IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
705 memcpy(&priv->card_alive_init,
707 sizeof(struct iwl_init_alive_resp));
708 pwork = &priv->init_alive_start;
710 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
711 memcpy(&priv->card_alive, &pkt->u.alive_frame,
712 sizeof(struct iwl_alive_resp));
713 pwork = &priv->alive_start;
716 /* We delay the ALIVE response by 5ms to
717 * give the HW RF Kill time to activate... */
718 if (palive->is_valid == UCODE_VALID_OK)
719 queue_delayed_work(priv->workqueue, pwork,
720 msecs_to_jiffies(5));
722 IWL_WARN(priv, "uCode did not respond OK.\n");
725 static void iwl_bg_beacon_update(struct work_struct *work)
727 struct iwl_priv *priv =
728 container_of(work, struct iwl_priv, beacon_update);
729 struct sk_buff *beacon;
731 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
732 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
735 IWL_ERR(priv, "update beacon failed\n");
739 mutex_lock(&priv->mutex);
740 /* new beacon skb is allocated every time; dispose previous.*/
741 if (priv->ibss_beacon)
742 dev_kfree_skb(priv->ibss_beacon);
744 priv->ibss_beacon = beacon;
745 mutex_unlock(&priv->mutex);
747 iwl_send_beacon_cmd(priv);
751 * iwl_bg_statistics_periodic - Timer callback to queue statistics
753 * This callback is provided in order to send a statistics request.
755 * This timer function is continually reset to execute within
756 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
757 * was received. We need to ensure we receive the statistics in order
758 * to update the temperature used for calibrating the TXPOWER.
760 static void iwl_bg_statistics_periodic(unsigned long data)
762 struct iwl_priv *priv = (struct iwl_priv *)data;
764 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
767 /* dont send host command if rf-kill is on */
768 if (!iwl_is_ready_rf(priv))
771 iwl_send_statistics_request(priv, CMD_ASYNC);
774 static void iwl_rx_beacon_notif(struct iwl_priv *priv,
775 struct iwl_rx_mem_buffer *rxb)
777 #ifdef CONFIG_IWLWIFI_DEBUG
778 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
779 struct iwl4965_beacon_notif *beacon =
780 (struct iwl4965_beacon_notif *)pkt->u.raw;
781 u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
783 IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
784 "tsf %d %d rate %d\n",
785 le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
786 beacon->beacon_notify_hdr.failure_frame,
787 le32_to_cpu(beacon->ibss_mgr_status),
788 le32_to_cpu(beacon->high_tsf),
789 le32_to_cpu(beacon->low_tsf), rate);
792 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
793 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
794 queue_work(priv->workqueue, &priv->beacon_update);
797 /* Handle notification from uCode that card's power state is changing
798 * due to software, hardware, or critical temperature RFKILL */
799 static void iwl_rx_card_state_notif(struct iwl_priv *priv,
800 struct iwl_rx_mem_buffer *rxb)
802 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
803 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
804 unsigned long status = priv->status;
806 IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
807 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
808 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
810 if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
813 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
814 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
816 if (!iwl_grab_nic_access(priv)) {
818 priv, HBUS_TARG_MBX_C,
819 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
821 iwl_release_nic_access(priv);
824 if (!(flags & RXON_CARD_DISABLED)) {
825 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
826 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
827 if (!iwl_grab_nic_access(priv)) {
829 priv, HBUS_TARG_MBX_C,
830 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
832 iwl_release_nic_access(priv);
836 if (flags & RF_CARD_DISABLED) {
837 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
838 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
839 iwl_read32(priv, CSR_UCODE_DRV_GP1);
840 if (!iwl_grab_nic_access(priv))
841 iwl_release_nic_access(priv);
845 if (flags & HW_CARD_DISABLED)
846 set_bit(STATUS_RF_KILL_HW, &priv->status);
848 clear_bit(STATUS_RF_KILL_HW, &priv->status);
851 if (flags & SW_CARD_DISABLED)
852 set_bit(STATUS_RF_KILL_SW, &priv->status);
854 clear_bit(STATUS_RF_KILL_SW, &priv->status);
856 if (!(flags & RXON_CARD_DISABLED))
857 iwl_scan_cancel(priv);
859 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
860 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
861 (test_bit(STATUS_RF_KILL_SW, &status) !=
862 test_bit(STATUS_RF_KILL_SW, &priv->status)))
863 queue_work(priv->workqueue, &priv->rf_kill);
865 wake_up_interruptible(&priv->wait_command_queue);
868 int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
873 spin_lock_irqsave(&priv->lock, flags);
874 ret = iwl_grab_nic_access(priv);
878 if (src == IWL_PWR_SRC_VAUX) {
879 if (pci_pme_capable(priv->pci_dev, PCI_D3cold))
880 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
881 APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
882 ~APMG_PS_CTRL_MSK_PWR_SRC);
884 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
885 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
886 ~APMG_PS_CTRL_MSK_PWR_SRC);
889 iwl_release_nic_access(priv);
891 spin_unlock_irqrestore(&priv->lock, flags);
896 * iwl_setup_rx_handlers - Initialize Rx handler callbacks
898 * Setup the RX handlers for each of the reply types sent from the uCode
901 * This function chains into the hardware specific files for them to setup
902 * any hardware specific handlers as well.
904 static void iwl_setup_rx_handlers(struct iwl_priv *priv)
906 priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
907 priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error;
908 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
909 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
910 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
911 iwl_rx_pm_debug_statistics_notif;
912 priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif;
915 * The same handler is used for both the REPLY to a discrete
916 * statistics request from the host as well as for the periodic
917 * statistics notifications (after received beacons) from the uCode.
919 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics;
920 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
922 iwl_setup_spectrum_handlers(priv);
923 iwl_setup_rx_scan_handlers(priv);
925 /* status change handler */
926 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif;
928 priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
929 iwl_rx_missed_beacon_notif;
931 priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
932 priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
934 priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
935 /* Set up hardware specific Rx handlers */
936 priv->cfg->ops->lib->rx_handler_setup(priv);
940 * iwl_rx_handle - Main entry function for receiving responses from uCode
942 * Uses the priv->rx_handlers callback function array to invoke
943 * the appropriate handlers, including command responses,
944 * frame-received notifications, and other notifications.
946 void iwl_rx_handle(struct iwl_priv *priv)
948 struct iwl_rx_mem_buffer *rxb;
949 struct iwl_rx_packet *pkt;
950 struct iwl_rx_queue *rxq = &priv->rxq;
957 /* uCode's read index (stored in shared DRAM) indicates the last Rx
958 * buffer that the driver may process (last buffer filled by ucode). */
959 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
962 /* Rx interrupt, but nothing sent from uCode */
964 IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i);
966 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
972 /* If an RXB doesn't have a Rx queue slot associated with it,
973 * then a bug has been introduced in the queue refilling
974 * routines -- catch it here */
977 rxq->queue[i] = NULL;
979 dma_sync_single_range_for_cpu(
980 &priv->pci_dev->dev, rxb->real_dma_addr,
981 rxb->aligned_dma_addr - rxb->real_dma_addr,
982 priv->hw_params.rx_buf_size,
984 pkt = (struct iwl_rx_packet *)rxb->skb->data;
986 /* Reclaim a command buffer only if this packet is a response
987 * to a (driver-originated) command.
988 * If the packet (e.g. Rx frame) originated from uCode,
989 * there is no command buffer to reclaim.
990 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
991 * but apparently a few don't get set; catch them here. */
992 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
993 (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
994 (pkt->hdr.cmd != REPLY_RX) &&
995 (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) &&
996 (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
997 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
998 (pkt->hdr.cmd != REPLY_TX);
1000 /* Based on type of command response or notification,
1001 * handle those that need handling via function in
1002 * rx_handlers table. See iwl_setup_rx_handlers() */
1003 if (priv->rx_handlers[pkt->hdr.cmd]) {
1004 IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r,
1005 i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
1006 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
1008 /* No handling needed */
1010 "r %d i %d No handler needed for %s, 0x%02x\n",
1011 r, i, get_cmd_string(pkt->hdr.cmd),
1016 /* Invoke any callbacks, transfer the skb to caller, and
1017 * fire off the (possibly) blocking iwl_send_cmd()
1018 * as we reclaim the driver command queue */
1019 if (rxb && rxb->skb)
1020 iwl_tx_cmd_complete(priv, rxb);
1022 IWL_WARN(priv, "Claim null rxb?\n");
1025 /* For now we just don't re-use anything. We can tweak this
1026 * later to try and re-use notification packets and SKBs that
1027 * fail to Rx correctly */
1028 if (rxb->skb != NULL) {
1029 priv->alloc_rxb_skb--;
1030 dev_kfree_skb_any(rxb->skb);
1034 pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
1035 priv->hw_params.rx_buf_size + 256,
1036 PCI_DMA_FROMDEVICE);
1037 spin_lock_irqsave(&rxq->lock, flags);
1038 list_add_tail(&rxb->list, &priv->rxq.rx_used);
1039 spin_unlock_irqrestore(&rxq->lock, flags);
1040 i = (i + 1) & RX_QUEUE_MASK;
1041 /* If there are a lot of unused frames,
1042 * restock the Rx queue so ucode wont assert. */
1047 iwl_rx_queue_restock(priv);
1053 /* Backtrack one entry */
1055 iwl_rx_queue_restock(priv);
1058 /* call this function to flush any scheduled tasklet */
1059 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
1061 /* wait to make sure we flush pending tasklet*/
1062 synchronize_irq(priv->pci_dev->irq);
1063 tasklet_kill(&priv->irq_tasklet);
1066 static void iwl_error_recovery(struct iwl_priv *priv)
1068 unsigned long flags;
1070 memcpy(&priv->staging_rxon, &priv->recovery_rxon,
1071 sizeof(priv->staging_rxon));
1072 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1073 iwl_commit_rxon(priv);
1075 iwl_rxon_add_station(priv, priv->bssid, 1);
1077 spin_lock_irqsave(&priv->lock, flags);
1078 priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
1079 priv->error_recovering = 0;
1080 spin_unlock_irqrestore(&priv->lock, flags);
1083 static void iwl_irq_tasklet(struct iwl_priv *priv)
1085 u32 inta, handled = 0;
1087 unsigned long flags;
1088 #ifdef CONFIG_IWLWIFI_DEBUG
1092 spin_lock_irqsave(&priv->lock, flags);
1094 /* Ack/clear/reset pending uCode interrupts.
1095 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1096 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1097 inta = iwl_read32(priv, CSR_INT);
1098 iwl_write32(priv, CSR_INT, inta);
1100 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1101 * Any new interrupts that happen after this, either while we're
1102 * in this tasklet, or later, will show up in next ISR/tasklet. */
1103 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1104 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
1106 #ifdef CONFIG_IWLWIFI_DEBUG
1107 if (priv->debug_level & IWL_DL_ISR) {
1108 /* just for debug */
1109 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1110 IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1111 inta, inta_mask, inta_fh);
1115 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1116 * atomic, make sure that inta covers all the interrupts that
1117 * we've discovered, even if FH interrupt came in just after
1118 * reading CSR_INT. */
1119 if (inta_fh & CSR49_FH_INT_RX_MASK)
1120 inta |= CSR_INT_BIT_FH_RX;
1121 if (inta_fh & CSR49_FH_INT_TX_MASK)
1122 inta |= CSR_INT_BIT_FH_TX;
1124 /* Now service all interrupt bits discovered above. */
1125 if (inta & CSR_INT_BIT_HW_ERR) {
1126 IWL_ERR(priv, "Microcode HW error detected. Restarting.\n");
1128 /* Tell the device to stop sending interrupts */
1129 iwl_disable_interrupts(priv);
1131 iwl_irq_handle_error(priv);
1133 handled |= CSR_INT_BIT_HW_ERR;
1135 spin_unlock_irqrestore(&priv->lock, flags);
1140 #ifdef CONFIG_IWLWIFI_DEBUG
1141 if (priv->debug_level & (IWL_DL_ISR)) {
1142 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1143 if (inta & CSR_INT_BIT_SCD)
1144 IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
1145 "the frame/frames.\n");
1147 /* Alive notification via Rx interrupt will do the real work */
1148 if (inta & CSR_INT_BIT_ALIVE)
1149 IWL_DEBUG_ISR(priv, "Alive interrupt\n");
1152 /* Safely ignore these bits for debug checks below */
1153 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1155 /* HW RF KILL switch toggled */
1156 if (inta & CSR_INT_BIT_RF_KILL) {
1158 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
1159 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
1162 IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n",
1163 hw_rf_kill ? "disable radio" : "enable radio");
1165 /* driver only loads ucode once setting the interface up.
1166 * the driver allows loading the ucode even if the radio
1167 * is killed. Hence update the killswitch state here. The
1168 * rfkill handler will care about restarting if needed.
1170 if (!test_bit(STATUS_ALIVE, &priv->status)) {
1172 set_bit(STATUS_RF_KILL_HW, &priv->status);
1174 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1175 queue_work(priv->workqueue, &priv->rf_kill);
1178 handled |= CSR_INT_BIT_RF_KILL;
1181 /* Chip got too hot and stopped itself */
1182 if (inta & CSR_INT_BIT_CT_KILL) {
1183 IWL_ERR(priv, "Microcode CT kill error detected.\n");
1184 handled |= CSR_INT_BIT_CT_KILL;
1187 /* Error detected by uCode */
1188 if (inta & CSR_INT_BIT_SW_ERR) {
1189 IWL_ERR(priv, "Microcode SW error detected. "
1190 " Restarting 0x%X.\n", inta);
1191 iwl_irq_handle_error(priv);
1192 handled |= CSR_INT_BIT_SW_ERR;
1195 /* uCode wakes up after power-down sleep */
1196 if (inta & CSR_INT_BIT_WAKEUP) {
1197 IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
1198 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
1199 iwl_txq_update_write_ptr(priv, &priv->txq[0]);
1200 iwl_txq_update_write_ptr(priv, &priv->txq[1]);
1201 iwl_txq_update_write_ptr(priv, &priv->txq[2]);
1202 iwl_txq_update_write_ptr(priv, &priv->txq[3]);
1203 iwl_txq_update_write_ptr(priv, &priv->txq[4]);
1204 iwl_txq_update_write_ptr(priv, &priv->txq[5]);
1206 handled |= CSR_INT_BIT_WAKEUP;
1209 /* All uCode command responses, including Tx command responses,
1210 * Rx "responses" (frame-received notification), and other
1211 * notifications from uCode come through here*/
1212 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1213 iwl_rx_handle(priv);
1214 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1217 if (inta & CSR_INT_BIT_FH_TX) {
1218 IWL_DEBUG_ISR(priv, "Tx interrupt\n");
1219 handled |= CSR_INT_BIT_FH_TX;
1220 /* FH finished to write, send event */
1221 priv->ucode_write_complete = 1;
1222 wake_up_interruptible(&priv->wait_command_queue);
1225 if (inta & ~handled)
1226 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
1228 if (inta & ~CSR_INI_SET_MASK) {
1229 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
1230 inta & ~CSR_INI_SET_MASK);
1231 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
1234 /* Re-enable all interrupts */
1235 /* only Re-enable if diabled by irq */
1236 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1237 iwl_enable_interrupts(priv);
1239 #ifdef CONFIG_IWLWIFI_DEBUG
1240 if (priv->debug_level & (IWL_DL_ISR)) {
1241 inta = iwl_read32(priv, CSR_INT);
1242 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1243 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1244 IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1245 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
1248 spin_unlock_irqrestore(&priv->lock, flags);
1251 /******************************************************************************
1253 * uCode download functions
1255 ******************************************************************************/
1257 static void iwl_dealloc_ucode_pci(struct iwl_priv *priv)
1259 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
1260 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
1261 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1262 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
1263 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1264 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
1267 static void iwl_nic_start(struct iwl_priv *priv)
1269 /* Remove all resets to allow NIC to operate */
1270 iwl_write32(priv, CSR_RESET, 0);
1275 * iwl_read_ucode - Read uCode images from disk file.
1277 * Copy into buffers for card to fetch via bus-mastering
1279 static int iwl_read_ucode(struct iwl_priv *priv)
1281 struct iwl_ucode *ucode;
1282 int ret = -EINVAL, index;
1283 const struct firmware *ucode_raw;
1284 const char *name_pre = priv->cfg->fw_name_pre;
1285 const unsigned int api_max = priv->cfg->ucode_api_max;
1286 const unsigned int api_min = priv->cfg->ucode_api_min;
1290 u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
1292 /* Ask kernel firmware_class module to get the boot firmware off disk.
1293 * request_firmware() is synchronous, file is in memory on return. */
1294 for (index = api_max; index >= api_min; index--) {
1295 sprintf(buf, "%s%d%s", name_pre, index, ".ucode");
1296 ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
1298 IWL_ERR(priv, "%s firmware file req failed: %d\n",
1305 if (index < api_max)
1306 IWL_ERR(priv, "Loaded firmware %s, "
1307 "which is deprecated. "
1308 "Please use API v%u instead.\n",
1311 IWL_DEBUG_INFO(priv, "Got firmware '%s' file (%zd bytes) from disk\n",
1312 buf, ucode_raw->size);
1320 /* Make sure that we got at least our header! */
1321 if (ucode_raw->size < sizeof(*ucode)) {
1322 IWL_ERR(priv, "File size way too small!\n");
1327 /* Data from ucode file: header followed by uCode images */
1328 ucode = (void *)ucode_raw->data;
1330 priv->ucode_ver = le32_to_cpu(ucode->ver);
1331 api_ver = IWL_UCODE_API(priv->ucode_ver);
1332 inst_size = le32_to_cpu(ucode->inst_size);
1333 data_size = le32_to_cpu(ucode->data_size);
1334 init_size = le32_to_cpu(ucode->init_size);
1335 init_data_size = le32_to_cpu(ucode->init_data_size);
1336 boot_size = le32_to_cpu(ucode->boot_size);
1338 /* api_ver should match the api version forming part of the
1339 * firmware filename ... but we don't check for that and only rely
1340 * on the API version read from firmware header from here on forward */
1342 if (api_ver < api_min || api_ver > api_max) {
1343 IWL_ERR(priv, "Driver unable to support your firmware API. "
1344 "Driver supports v%u, firmware is v%u.\n",
1346 priv->ucode_ver = 0;
1350 if (api_ver != api_max)
1351 IWL_ERR(priv, "Firmware has old API version. Expected v%u, "
1352 "got v%u. New firmware can be obtained "
1353 "from http://www.intellinuxwireless.org.\n",
1356 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
1357 IWL_UCODE_MAJOR(priv->ucode_ver),
1358 IWL_UCODE_MINOR(priv->ucode_ver),
1359 IWL_UCODE_API(priv->ucode_ver),
1360 IWL_UCODE_SERIAL(priv->ucode_ver));
1362 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1364 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n",
1366 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n",
1368 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n",
1370 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n",
1372 IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n",
1375 /* Verify size of file vs. image size info in file's header */
1376 if (ucode_raw->size < sizeof(*ucode) +
1377 inst_size + data_size + init_size +
1378 init_data_size + boot_size) {
1380 IWL_DEBUG_INFO(priv, "uCode file size %d too small\n",
1381 (int)ucode_raw->size);
1386 /* Verify that uCode images will fit in card's SRAM */
1387 if (inst_size > priv->hw_params.max_inst_size) {
1388 IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n",
1394 if (data_size > priv->hw_params.max_data_size) {
1395 IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n",
1400 if (init_size > priv->hw_params.max_inst_size) {
1401 IWL_INFO(priv, "uCode init instr len %d too large to fit in\n",
1406 if (init_data_size > priv->hw_params.max_data_size) {
1407 IWL_INFO(priv, "uCode init data len %d too large to fit in\n",
1412 if (boot_size > priv->hw_params.max_bsm_size) {
1413 IWL_INFO(priv, "uCode boot instr len %d too large to fit in\n",
1419 /* Allocate ucode buffers for card's bus-master loading ... */
1421 /* Runtime instructions and 2 copies of data:
1422 * 1) unmodified from disk
1423 * 2) backup cache for save/restore during power-downs */
1424 priv->ucode_code.len = inst_size;
1425 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
1427 priv->ucode_data.len = data_size;
1428 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
1430 priv->ucode_data_backup.len = data_size;
1431 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1433 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
1434 !priv->ucode_data_backup.v_addr)
1437 /* Initialization instructions and data */
1438 if (init_size && init_data_size) {
1439 priv->ucode_init.len = init_size;
1440 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
1442 priv->ucode_init_data.len = init_data_size;
1443 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1445 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
1449 /* Bootstrap (instructions only, no data) */
1451 priv->ucode_boot.len = boot_size;
1452 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
1454 if (!priv->ucode_boot.v_addr)
1458 /* Copy images into buffers for card's bus-master reads ... */
1460 /* Runtime instructions (first block of data in file) */
1461 src = &ucode->data[0];
1462 len = priv->ucode_code.len;
1463 IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n", len);
1464 memcpy(priv->ucode_code.v_addr, src, len);
1465 IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
1466 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
1468 /* Runtime data (2nd block)
1469 * NOTE: Copy into backup buffer will be done in iwl_up() */
1470 src = &ucode->data[inst_size];
1471 len = priv->ucode_data.len;
1472 IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n", len);
1473 memcpy(priv->ucode_data.v_addr, src, len);
1474 memcpy(priv->ucode_data_backup.v_addr, src, len);
1476 /* Initialization instructions (3rd block) */
1478 src = &ucode->data[inst_size + data_size];
1479 len = priv->ucode_init.len;
1480 IWL_DEBUG_INFO(priv, "Copying (but not loading) init instr len %Zd\n",
1482 memcpy(priv->ucode_init.v_addr, src, len);
1485 /* Initialization data (4th block) */
1486 if (init_data_size) {
1487 src = &ucode->data[inst_size + data_size + init_size];
1488 len = priv->ucode_init_data.len;
1489 IWL_DEBUG_INFO(priv, "Copying (but not loading) init data len %Zd\n",
1491 memcpy(priv->ucode_init_data.v_addr, src, len);
1494 /* Bootstrap instructions (5th block) */
1495 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
1496 len = priv->ucode_boot.len;
1497 IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n", len);
1498 memcpy(priv->ucode_boot.v_addr, src, len);
1500 /* We have our copies now, allow OS release its copies */
1501 release_firmware(ucode_raw);
1505 IWL_ERR(priv, "failed to allocate pci memory\n");
1507 iwl_dealloc_ucode_pci(priv);
1510 release_firmware(ucode_raw);
1517 static int iwl_mac_beacon_update(struct ieee80211_hw *hw,
1518 struct sk_buff *skb);
1521 * iwl_alive_start - called after REPLY_ALIVE notification received
1522 * from protocol/runtime uCode (initialization uCode's
1523 * Alive gets handled by iwl_init_alive_start()).
1525 static void iwl_alive_start(struct iwl_priv *priv)
1529 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
1531 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
1532 /* We had an error bringing up the hardware, so take it
1533 * all the way back down so we can try again */
1534 IWL_DEBUG_INFO(priv, "Alive failed.\n");
1538 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
1539 * This is a paranoid check, because we would not have gotten the
1540 * "runtime" alive if code weren't properly loaded. */
1541 if (iwl_verify_ucode(priv)) {
1542 /* Runtime instruction load was bad;
1543 * take it all the way back down so we can try again */
1544 IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
1548 iwl_clear_stations_table(priv);
1549 ret = priv->cfg->ops->lib->alive_notify(priv);
1552 "Could not complete ALIVE transition [ntf]: %d\n", ret);
1556 /* After the ALIVE response, we can send host commands to the uCode */
1557 set_bit(STATUS_ALIVE, &priv->status);
1559 if (iwl_is_rfkill(priv))
1562 ieee80211_wake_queues(priv->hw);
1564 priv->active_rate = priv->rates_mask;
1565 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
1567 if (iwl_is_associated(priv)) {
1568 struct iwl_rxon_cmd *active_rxon =
1569 (struct iwl_rxon_cmd *)&priv->active_rxon;
1570 /* apply any changes in staging */
1571 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
1572 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1574 /* Initialize our rx_config data */
1575 iwl_connection_init_rx_config(priv, priv->iw_mode);
1576 iwl_set_rxon_chain(priv);
1577 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1580 /* Configure Bluetooth device coexistence support */
1581 iwl_send_bt_config(priv);
1583 iwl_reset_run_time_calib(priv);
1585 /* Configure the adapter for unassociated operation */
1586 iwl_commit_rxon(priv);
1588 /* At this point, the NIC is initialized and operational */
1589 iwl_rf_kill_ct_config(priv);
1591 iwl_leds_register(priv);
1593 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
1594 set_bit(STATUS_READY, &priv->status);
1595 wake_up_interruptible(&priv->wait_command_queue);
1597 if (priv->error_recovering)
1598 iwl_error_recovery(priv);
1600 iwl_power_update_mode(priv, 1);
1602 /* reassociate for ADHOC mode */
1603 if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
1604 struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
1607 iwl_mac_beacon_update(priv->hw, beacon);
1611 if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
1612 iwl_set_mode(priv, priv->iw_mode);
1617 queue_work(priv->workqueue, &priv->restart);
1620 static void iwl_cancel_deferred_work(struct iwl_priv *priv);
1622 static void __iwl_down(struct iwl_priv *priv)
1624 unsigned long flags;
1625 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
1627 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
1630 set_bit(STATUS_EXIT_PENDING, &priv->status);
1632 iwl_leds_unregister(priv);
1634 iwl_clear_stations_table(priv);
1636 /* Unblock any waiting calls */
1637 wake_up_interruptible_all(&priv->wait_command_queue);
1639 /* Wipe out the EXIT_PENDING status bit if we are not actually
1640 * exiting the module */
1642 clear_bit(STATUS_EXIT_PENDING, &priv->status);
1644 /* stop and reset the on-board processor */
1645 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
1647 /* tell the device to stop sending interrupts */
1648 spin_lock_irqsave(&priv->lock, flags);
1649 iwl_disable_interrupts(priv);
1650 spin_unlock_irqrestore(&priv->lock, flags);
1651 iwl_synchronize_irq(priv);
1653 if (priv->mac80211_registered)
1654 ieee80211_stop_queues(priv->hw);
1656 /* If we have not previously called iwl_init() then
1657 * clear all bits but the RF Kill bits and return */
1658 if (!iwl_is_init(priv)) {
1659 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
1661 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
1663 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
1664 STATUS_GEO_CONFIGURED |
1665 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
1666 STATUS_EXIT_PENDING;
1670 /* ...otherwise clear out all the status bits but the RF Kill
1671 * bits and continue taking the NIC down. */
1672 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
1674 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
1676 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
1677 STATUS_GEO_CONFIGURED |
1678 test_bit(STATUS_FW_ERROR, &priv->status) <<
1680 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
1681 STATUS_EXIT_PENDING;
1683 spin_lock_irqsave(&priv->lock, flags);
1684 iwl_clear_bit(priv, CSR_GP_CNTRL,
1685 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
1686 spin_unlock_irqrestore(&priv->lock, flags);
1688 iwl_txq_ctx_stop(priv);
1691 spin_lock_irqsave(&priv->lock, flags);
1692 if (!iwl_grab_nic_access(priv)) {
1693 iwl_write_prph(priv, APMG_CLK_DIS_REG,
1694 APMG_CLK_VAL_DMA_CLK_RQT);
1695 iwl_release_nic_access(priv);
1697 spin_unlock_irqrestore(&priv->lock, flags);
1701 /* FIXME: apm_ops.suspend(priv) */
1703 priv->cfg->ops->lib->apm_ops.stop(priv);
1705 priv->cfg->ops->lib->apm_ops.reset(priv);
1707 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
1709 if (priv->ibss_beacon)
1710 dev_kfree_skb(priv->ibss_beacon);
1711 priv->ibss_beacon = NULL;
1713 /* clear out any free frames */
1714 iwl_clear_free_frames(priv);
1717 static void iwl_down(struct iwl_priv *priv)
1719 mutex_lock(&priv->mutex);
1721 mutex_unlock(&priv->mutex);
1723 iwl_cancel_deferred_work(priv);
1726 #define MAX_HW_RESTARTS 5
1728 static int __iwl_up(struct iwl_priv *priv)
1733 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1734 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
1738 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
1739 IWL_ERR(priv, "ucode not available for device bringup\n");
1743 /* If platform's RF_KILL switch is NOT set to KILL */
1744 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
1745 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1747 set_bit(STATUS_RF_KILL_HW, &priv->status);
1749 if (iwl_is_rfkill(priv)) {
1750 iwl_enable_interrupts(priv);
1751 IWL_WARN(priv, "Radio disabled by %s RF Kill switch\n",
1752 test_bit(STATUS_RF_KILL_HW, &priv->status) ? "HW" : "SW");
1756 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
1758 ret = iwl_hw_nic_init(priv);
1760 IWL_ERR(priv, "Unable to init nic\n");
1764 /* make sure rfkill handshake bits are cleared */
1765 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
1766 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
1767 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
1769 /* clear (again), then enable host interrupts */
1770 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
1771 iwl_enable_interrupts(priv);
1773 /* really make sure rfkill handshake bits are cleared */
1774 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
1775 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
1777 /* Copy original ucode data image from disk into backup cache.
1778 * This will be used to initialize the on-board processor's
1779 * data SRAM for a clean start when the runtime program first loads. */
1780 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
1781 priv->ucode_data.len);
1783 for (i = 0; i < MAX_HW_RESTARTS; i++) {
1785 iwl_clear_stations_table(priv);
1787 /* load bootstrap state machine,
1788 * load bootstrap program into processor's memory,
1789 * prepare to load the "initialize" uCode */
1790 ret = priv->cfg->ops->lib->load_ucode(priv);
1793 IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n",
1798 /* Clear out the uCode error bit if it is set */
1799 clear_bit(STATUS_FW_ERROR, &priv->status);
1801 /* start card; "initialize" will load runtime ucode */
1802 iwl_nic_start(priv);
1804 IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
1809 set_bit(STATUS_EXIT_PENDING, &priv->status);
1811 clear_bit(STATUS_EXIT_PENDING, &priv->status);
1813 /* tried to restart and config the device for as long as our
1814 * patience could withstand */
1815 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
1820 /*****************************************************************************
1822 * Workqueue callbacks
1824 *****************************************************************************/
1826 static void iwl_bg_init_alive_start(struct work_struct *data)
1828 struct iwl_priv *priv =
1829 container_of(data, struct iwl_priv, init_alive_start.work);
1831 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1834 mutex_lock(&priv->mutex);
1835 priv->cfg->ops->lib->init_alive_start(priv);
1836 mutex_unlock(&priv->mutex);
1839 static void iwl_bg_alive_start(struct work_struct *data)
1841 struct iwl_priv *priv =
1842 container_of(data, struct iwl_priv, alive_start.work);
1844 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1847 mutex_lock(&priv->mutex);
1848 iwl_alive_start(priv);
1849 mutex_unlock(&priv->mutex);
1852 static void iwl_bg_run_time_calib_work(struct work_struct *work)
1854 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1855 run_time_calib_work);
1857 mutex_lock(&priv->mutex);
1859 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
1860 test_bit(STATUS_SCANNING, &priv->status)) {
1861 mutex_unlock(&priv->mutex);
1865 if (priv->start_calib) {
1866 iwl_chain_noise_calibration(priv, &priv->statistics);
1868 iwl_sensitivity_calibration(priv, &priv->statistics);
1871 mutex_unlock(&priv->mutex);
1875 static void iwl_bg_up(struct work_struct *data)
1877 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
1879 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1882 mutex_lock(&priv->mutex);
1884 mutex_unlock(&priv->mutex);
1885 iwl_rfkill_set_hw_state(priv);
1888 static void iwl_bg_restart(struct work_struct *data)
1890 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
1892 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1896 queue_work(priv->workqueue, &priv->up);
1899 static void iwl_bg_rx_replenish(struct work_struct *data)
1901 struct iwl_priv *priv =
1902 container_of(data, struct iwl_priv, rx_replenish);
1904 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1907 mutex_lock(&priv->mutex);
1908 iwl_rx_replenish(priv);
1909 mutex_unlock(&priv->mutex);
1912 #define IWL_DELAY_NEXT_SCAN (HZ*2)
1914 static void iwl_post_associate(struct iwl_priv *priv)
1916 struct ieee80211_conf *conf = NULL;
1918 unsigned long flags;
1920 if (priv->iw_mode == NL80211_IFTYPE_AP) {
1921 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
1925 IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
1926 priv->assoc_id, priv->active_rxon.bssid_addr);
1929 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1933 if (!priv->vif || !priv->is_open)
1936 iwl_power_cancel_timeout(priv);
1937 iwl_scan_cancel_timeout(priv, 200);
1939 conf = ieee80211_get_hw_conf(priv->hw);
1941 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1942 iwl_commit_rxon(priv);
1944 iwl_setup_rxon_timing(priv);
1945 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
1946 sizeof(priv->rxon_timing), &priv->rxon_timing);
1948 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
1949 "Attempting to continue.\n");
1951 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
1953 iwl_set_rxon_ht(priv, &priv->current_ht_config);
1955 iwl_set_rxon_chain(priv);
1956 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
1958 IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
1959 priv->assoc_id, priv->beacon_int);
1961 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1962 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1964 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1966 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
1967 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1968 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1970 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1972 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
1973 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1977 iwl_commit_rxon(priv);
1979 switch (priv->iw_mode) {
1980 case NL80211_IFTYPE_STATION:
1983 case NL80211_IFTYPE_ADHOC:
1985 /* assume default assoc id */
1988 iwl_rxon_add_station(priv, priv->bssid, 0);
1989 iwl_send_beacon_cmd(priv);
1994 IWL_ERR(priv, "%s Should not be called in %d mode\n",
1995 __func__, priv->iw_mode);
1999 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
2000 priv->assoc_station_added = 1;
2002 spin_lock_irqsave(&priv->lock, flags);
2003 iwl_activate_qos(priv, 0);
2004 spin_unlock_irqrestore(&priv->lock, flags);
2006 /* the chain noise calibration will enabled PM upon completion
2007 * If chain noise has already been run, then we need to enable
2008 * power management here */
2009 if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
2010 iwl_power_enable_management(priv);
2012 /* Enable Rx differential gain and sensitivity calibrations */
2013 iwl_chain_noise_reset(priv);
2014 priv->start_calib = 1;
2018 /*****************************************************************************
2020 * mac80211 entry point functions
2022 *****************************************************************************/
2024 #define UCODE_READY_TIMEOUT (4 * HZ)
2026 static int iwl_mac_start(struct ieee80211_hw *hw)
2028 struct iwl_priv *priv = hw->priv;
2031 IWL_DEBUG_MAC80211(priv, "enter\n");
2033 /* we should be verifying the device is ready to be opened */
2034 mutex_lock(&priv->mutex);
2036 memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
2037 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
2038 * ucode filename and max sizes are card-specific. */
2040 if (!priv->ucode_code.len) {
2041 ret = iwl_read_ucode(priv);
2043 IWL_ERR(priv, "Could not read microcode: %d\n", ret);
2044 mutex_unlock(&priv->mutex);
2049 ret = __iwl_up(priv);
2051 mutex_unlock(&priv->mutex);
2053 iwl_rfkill_set_hw_state(priv);
2058 if (iwl_is_rfkill(priv))
2061 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
2063 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2064 * mac80211 will not be run successfully. */
2065 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
2066 test_bit(STATUS_READY, &priv->status),
2067 UCODE_READY_TIMEOUT);
2069 if (!test_bit(STATUS_READY, &priv->status)) {
2070 IWL_ERR(priv, "START_ALIVE timeout after %dms.\n",
2071 jiffies_to_msecs(UCODE_READY_TIMEOUT));
2078 IWL_DEBUG_MAC80211(priv, "leave\n");
2082 static void iwl_mac_stop(struct ieee80211_hw *hw)
2084 struct iwl_priv *priv = hw->priv;
2086 IWL_DEBUG_MAC80211(priv, "enter\n");
2088 if (!priv->is_open) {
2089 IWL_DEBUG_MAC80211(priv, "leave - skip\n");
2095 if (iwl_is_ready_rf(priv)) {
2096 /* stop mac, cancel any scan request and clear
2097 * RXON_FILTER_ASSOC_MSK BIT
2099 mutex_lock(&priv->mutex);
2100 iwl_scan_cancel_timeout(priv, 100);
2101 mutex_unlock(&priv->mutex);
2106 flush_workqueue(priv->workqueue);
2108 /* enable interrupts again in order to receive rfkill changes */
2109 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2110 iwl_enable_interrupts(priv);
2112 IWL_DEBUG_MAC80211(priv, "leave\n");
2115 static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
2117 struct iwl_priv *priv = hw->priv;
2119 IWL_DEBUG_MACDUMP(priv, "enter\n");
2121 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
2122 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
2124 if (iwl_tx_skb(priv, skb))
2125 dev_kfree_skb_any(skb);
2127 IWL_DEBUG_MACDUMP(priv, "leave\n");
2128 return NETDEV_TX_OK;
2131 static int iwl_mac_add_interface(struct ieee80211_hw *hw,
2132 struct ieee80211_if_init_conf *conf)
2134 struct iwl_priv *priv = hw->priv;
2135 unsigned long flags;
2137 IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type);
2140 IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
2144 spin_lock_irqsave(&priv->lock, flags);
2145 priv->vif = conf->vif;
2146 priv->iw_mode = conf->type;
2148 spin_unlock_irqrestore(&priv->lock, flags);
2150 mutex_lock(&priv->mutex);
2152 if (conf->mac_addr) {
2153 IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr);
2154 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
2157 if (iwl_set_mode(priv, conf->type) == -EAGAIN)
2158 /* we are not ready, will run again when ready */
2159 set_bit(STATUS_MODE_PENDING, &priv->status);
2161 mutex_unlock(&priv->mutex);
2163 IWL_DEBUG_MAC80211(priv, "leave\n");
2168 * iwl_mac_config - mac80211 config callback
2170 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2171 * be set inappropriately and the driver currently sets the hardware up to
2172 * use it whenever needed.
2174 static int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
2176 struct iwl_priv *priv = hw->priv;
2177 const struct iwl_channel_info *ch_info;
2178 struct ieee80211_conf *conf = &hw->conf;
2179 unsigned long flags = 0;
2182 int scan_active = 0;
2184 mutex_lock(&priv->mutex);
2185 IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n",
2186 conf->channel->hw_value, changed);
2188 if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
2189 test_bit(STATUS_SCANNING, &priv->status))) {
2191 IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
2195 /* during scanning mac80211 will delay channel setting until
2196 * scan finish with changed = 0
2198 if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2202 ch = ieee80211_frequency_to_channel(conf->channel->center_freq);
2203 ch_info = iwl_get_channel_info(priv, conf->channel->band, ch);
2204 if (!is_channel_valid(ch_info)) {
2205 IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
2210 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2211 !is_channel_ibss(ch_info)) {
2212 IWL_ERR(priv, "channel %d in band %d not "
2214 conf->channel->hw_value, conf->channel->band);
2219 priv->current_ht_config.is_ht = conf_is_ht(conf);
2221 spin_lock_irqsave(&priv->lock, flags);
2224 /* if we are switching from ht to 2.4 clear flags
2225 * from any ht related info since 2.4 does not
2227 if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
2228 priv->staging_rxon.flags = 0;
2230 iwl_set_rxon_channel(priv, conf->channel);
2232 iwl_set_flags_for_band(priv, conf->channel->band);
2233 spin_unlock_irqrestore(&priv->lock, flags);
2235 /* The list of supported rates and rate mask can be different
2236 * for each band; since the band may have changed, reset
2237 * the rate mask to what mac80211 lists */
2241 if (changed & IEEE80211_CONF_CHANGE_PS) {
2242 if (conf->flags & IEEE80211_CONF_PS)
2243 ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3);
2245 ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM);
2247 IWL_DEBUG_MAC80211(priv, "Error setting power level\n");
2251 if (changed & IEEE80211_CONF_CHANGE_POWER) {
2252 IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
2253 priv->tx_power_user_lmt, conf->power_level);
2255 iwl_set_tx_power(priv, conf->power_level, false);
2258 /* call to ensure that 4965 rx_chain is set properly in monitor mode */
2259 iwl_set_rxon_chain(priv);
2261 if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) {
2262 if (conf->radio_enabled &&
2263 iwl_radio_kill_sw_enable_radio(priv)) {
2264 IWL_DEBUG_MAC80211(priv, "leave - RF-KILL - "
2265 "waiting for uCode\n");
2269 if (!conf->radio_enabled)
2270 iwl_radio_kill_sw_disable_radio(priv);
2273 if (!conf->radio_enabled) {
2274 IWL_DEBUG_MAC80211(priv, "leave - radio disabled\n");
2278 if (!iwl_is_ready(priv)) {
2279 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
2286 if (memcmp(&priv->active_rxon,
2287 &priv->staging_rxon, sizeof(priv->staging_rxon)))
2288 iwl_commit_rxon(priv);
2290 IWL_DEBUG_INFO(priv, "No re-sending same RXON configuration.\n");
2294 IWL_DEBUG_MAC80211(priv, "leave\n");
2295 mutex_unlock(&priv->mutex);
2299 static void iwl_config_ap(struct iwl_priv *priv)
2302 unsigned long flags;
2304 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2307 /* The following should be done only at AP bring up */
2308 if (!iwl_is_associated(priv)) {
2310 /* RXON - unassoc (to set timing command) */
2311 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2312 iwl_commit_rxon(priv);
2315 iwl_setup_rxon_timing(priv);
2316 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
2317 sizeof(priv->rxon_timing), &priv->rxon_timing);
2319 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
2320 "Attempting to continue.\n");
2322 iwl_set_rxon_chain(priv);
2324 /* FIXME: what should be the assoc_id for AP? */
2325 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
2326 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2327 priv->staging_rxon.flags |=
2328 RXON_FLG_SHORT_PREAMBLE_MSK;
2330 priv->staging_rxon.flags &=
2331 ~RXON_FLG_SHORT_PREAMBLE_MSK;
2333 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
2334 if (priv->assoc_capability &
2335 WLAN_CAPABILITY_SHORT_SLOT_TIME)
2336 priv->staging_rxon.flags |=
2337 RXON_FLG_SHORT_SLOT_MSK;
2339 priv->staging_rxon.flags &=
2340 ~RXON_FLG_SHORT_SLOT_MSK;
2342 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
2343 priv->staging_rxon.flags &=
2344 ~RXON_FLG_SHORT_SLOT_MSK;
2346 /* restore RXON assoc */
2347 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2348 iwl_commit_rxon(priv);
2349 spin_lock_irqsave(&priv->lock, flags);
2350 iwl_activate_qos(priv, 1);
2351 spin_unlock_irqrestore(&priv->lock, flags);
2352 iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
2354 iwl_send_beacon_cmd(priv);
2356 /* FIXME - we need to add code here to detect a totally new
2357 * configuration, reset the AP, unassoc, rxon timing, assoc,
2358 * clear sta table, add BCAST sta... */
2362 static int iwl_mac_config_interface(struct ieee80211_hw *hw,
2363 struct ieee80211_vif *vif,
2364 struct ieee80211_if_conf *conf)
2366 struct iwl_priv *priv = hw->priv;
2372 if (priv->vif != vif) {
2373 IWL_DEBUG_MAC80211(priv, "leave - priv->vif != vif\n");
2377 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2378 conf->changed & IEEE80211_IFCC_BEACON) {
2379 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
2382 mutex_lock(&priv->mutex);
2383 rc = iwl_mac_beacon_update(hw, beacon);
2384 mutex_unlock(&priv->mutex);
2389 if (!iwl_is_alive(priv))
2392 mutex_lock(&priv->mutex);
2395 IWL_DEBUG_MAC80211(priv, "bssid: %pM\n", conf->bssid);
2398 * very dubious code was here; the probe filtering flag is never set:
2400 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
2401 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
2404 if (priv->iw_mode == NL80211_IFTYPE_AP) {
2406 conf->bssid = priv->mac_addr;
2407 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
2408 IWL_DEBUG_MAC80211(priv, "bssid was set to: %pM\n",
2411 if (priv->ibss_beacon)
2412 dev_kfree_skb(priv->ibss_beacon);
2414 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
2417 if (iwl_is_rfkill(priv))
2420 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
2421 !is_multicast_ether_addr(conf->bssid)) {
2422 /* If there is currently a HW scan going on in the background
2423 * then we need to cancel it else the RXON below will fail. */
2424 if (iwl_scan_cancel_timeout(priv, 100)) {
2425 IWL_WARN(priv, "Aborted scan still in progress "
2427 IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n");
2428 mutex_unlock(&priv->mutex);
2431 memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
2433 /* TODO: Audit driver for usage of these members and see
2434 * if mac80211 deprecates them (priv->bssid looks like it
2435 * shouldn't be there, but I haven't scanned the IBSS code
2436 * to verify) - jpk */
2437 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
2439 if (priv->iw_mode == NL80211_IFTYPE_AP)
2440 iwl_config_ap(priv);
2442 rc = iwl_commit_rxon(priv);
2443 if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
2444 iwl_rxon_add_station(
2445 priv, priv->active_rxon.bssid_addr, 1);
2449 iwl_scan_cancel_timeout(priv, 100);
2450 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2451 iwl_commit_rxon(priv);
2455 IWL_DEBUG_MAC80211(priv, "leave\n");
2456 mutex_unlock(&priv->mutex);
2461 static void iwl_mac_remove_interface(struct ieee80211_hw *hw,
2462 struct ieee80211_if_init_conf *conf)
2464 struct iwl_priv *priv = hw->priv;
2466 IWL_DEBUG_MAC80211(priv, "enter\n");
2468 mutex_lock(&priv->mutex);
2470 if (iwl_is_ready_rf(priv)) {
2471 iwl_scan_cancel_timeout(priv, 100);
2472 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2473 iwl_commit_rxon(priv);
2475 if (priv->vif == conf->vif) {
2477 memset(priv->bssid, 0, ETH_ALEN);
2479 mutex_unlock(&priv->mutex);
2481 IWL_DEBUG_MAC80211(priv, "leave\n");
2485 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
2486 static void iwl_bss_info_changed(struct ieee80211_hw *hw,
2487 struct ieee80211_vif *vif,
2488 struct ieee80211_bss_conf *bss_conf,
2491 struct iwl_priv *priv = hw->priv;
2493 IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
2495 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
2496 IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n",
2497 bss_conf->use_short_preamble);
2498 if (bss_conf->use_short_preamble)
2499 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
2501 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
2504 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
2505 IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot);
2506 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
2507 priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
2509 priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
2512 if (changes & BSS_CHANGED_HT) {
2513 iwl_ht_conf(priv, bss_conf);
2514 iwl_set_rxon_chain(priv);
2517 if (changes & BSS_CHANGED_ASSOC) {
2518 IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc);
2519 /* This should never happen as this function should
2520 * never be called from interrupt context. */
2521 if (WARN_ON_ONCE(in_interrupt()))
2523 if (bss_conf->assoc) {
2524 priv->assoc_id = bss_conf->aid;
2525 priv->beacon_int = bss_conf->beacon_int;
2526 priv->power_data.dtim_period = bss_conf->dtim_period;
2527 priv->timestamp = bss_conf->timestamp;
2528 priv->assoc_capability = bss_conf->assoc_capability;
2530 /* we have just associated, don't start scan too early
2531 * leave time for EAPOL exchange to complete
2533 priv->next_scan_jiffies = jiffies +
2534 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
2535 mutex_lock(&priv->mutex);
2536 iwl_post_associate(priv);
2537 mutex_unlock(&priv->mutex);
2540 IWL_DEBUG_MAC80211(priv, "DISASSOC %d\n", bss_conf->assoc);
2542 } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
2543 IWL_DEBUG_MAC80211(priv, "Associated Changes %d\n", changes);
2544 iwl_send_rxon_assoc(priv);
2549 static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw,
2550 struct ieee80211_key_conf *keyconf, const u8 *addr,
2551 u32 iv32, u16 *phase1key)
2554 struct iwl_priv *priv = hw->priv;
2555 IWL_DEBUG_MAC80211(priv, "enter\n");
2557 iwl_update_tkip_key(priv, keyconf, addr, iv32, phase1key);
2559 IWL_DEBUG_MAC80211(priv, "leave\n");
2562 static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2563 struct ieee80211_vif *vif,
2564 struct ieee80211_sta *sta,
2565 struct ieee80211_key_conf *key)
2567 struct iwl_priv *priv = hw->priv;
2571 bool is_default_wep_key = false;
2573 IWL_DEBUG_MAC80211(priv, "enter\n");
2575 if (priv->hw_params.sw_crypto) {
2576 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
2579 addr = sta ? sta->addr : iwl_bcast_addr;
2580 sta_id = iwl_find_station(priv, addr);
2581 if (sta_id == IWL_INVALID_STATION) {
2582 IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n",
2588 mutex_lock(&priv->mutex);
2589 iwl_scan_cancel_timeout(priv, 100);
2590 mutex_unlock(&priv->mutex);
2592 /* If we are getting WEP group key and we didn't receive any key mapping
2593 * so far, we are in legacy wep mode (group key only), otherwise we are
2595 * In legacy wep mode, we use another host command to the uCode */
2596 if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
2597 priv->iw_mode != NL80211_IFTYPE_AP) {
2599 is_default_wep_key = !priv->key_mapping_key;
2601 is_default_wep_key =
2602 (key->hw_key_idx == HW_KEY_DEFAULT);
2607 if (is_default_wep_key)
2608 ret = iwl_set_default_wep_key(priv, key);
2610 ret = iwl_set_dynamic_key(priv, key, sta_id);
2612 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
2615 if (is_default_wep_key)
2616 ret = iwl_remove_default_wep_key(priv, key);
2618 ret = iwl_remove_dynamic_key(priv, key, sta_id);
2620 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
2626 IWL_DEBUG_MAC80211(priv, "leave\n");
2631 static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
2632 enum ieee80211_ampdu_mlme_action action,
2633 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
2635 struct iwl_priv *priv = hw->priv;
2638 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
2641 if (!(priv->cfg->sku & IWL_SKU_N))
2645 case IEEE80211_AMPDU_RX_START:
2646 IWL_DEBUG_HT(priv, "start Rx\n");
2647 return iwl_sta_rx_agg_start(priv, sta->addr, tid, *ssn);
2648 case IEEE80211_AMPDU_RX_STOP:
2649 IWL_DEBUG_HT(priv, "stop Rx\n");
2650 ret = iwl_sta_rx_agg_stop(priv, sta->addr, tid);
2651 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2655 case IEEE80211_AMPDU_TX_START:
2656 IWL_DEBUG_HT(priv, "start Tx\n");
2657 return iwl_tx_agg_start(priv, sta->addr, tid, ssn);
2658 case IEEE80211_AMPDU_TX_STOP:
2659 IWL_DEBUG_HT(priv, "stop Tx\n");
2660 ret = iwl_tx_agg_stop(priv, sta->addr, tid);
2661 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2666 IWL_DEBUG_HT(priv, "unknown\n");
2673 static int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
2674 struct ieee80211_tx_queue_stats *stats)
2676 struct iwl_priv *priv = hw->priv;
2678 struct iwl_tx_queue *txq;
2679 struct iwl_queue *q;
2680 unsigned long flags;
2682 IWL_DEBUG_MAC80211(priv, "enter\n");
2684 if (!iwl_is_ready_rf(priv)) {
2685 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2689 spin_lock_irqsave(&priv->lock, flags);
2691 for (i = 0; i < AC_NUM; i++) {
2692 txq = &priv->txq[i];
2694 avail = iwl_queue_space(q);
2696 stats[i].len = q->n_window - avail;
2697 stats[i].limit = q->n_window - q->high_mark;
2698 stats[i].count = q->n_window;
2701 spin_unlock_irqrestore(&priv->lock, flags);
2703 IWL_DEBUG_MAC80211(priv, "leave\n");
2708 static int iwl_mac_get_stats(struct ieee80211_hw *hw,
2709 struct ieee80211_low_level_stats *stats)
2711 struct iwl_priv *priv = hw->priv;
2714 IWL_DEBUG_MAC80211(priv, "enter\n");
2715 IWL_DEBUG_MAC80211(priv, "leave\n");
2720 static void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
2722 struct iwl_priv *priv = hw->priv;
2723 unsigned long flags;
2725 mutex_lock(&priv->mutex);
2726 IWL_DEBUG_MAC80211(priv, "enter\n");
2728 spin_lock_irqsave(&priv->lock, flags);
2729 memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
2730 spin_unlock_irqrestore(&priv->lock, flags);
2732 iwl_reset_qos(priv);
2734 spin_lock_irqsave(&priv->lock, flags);
2736 priv->assoc_capability = 0;
2737 priv->assoc_station_added = 0;
2739 /* new association get rid of ibss beacon skb */
2740 if (priv->ibss_beacon)
2741 dev_kfree_skb(priv->ibss_beacon);
2743 priv->ibss_beacon = NULL;
2745 priv->beacon_int = priv->hw->conf.beacon_int;
2746 priv->timestamp = 0;
2747 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
2748 priv->beacon_int = 0;
2750 spin_unlock_irqrestore(&priv->lock, flags);
2752 if (!iwl_is_ready_rf(priv)) {
2753 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
2754 mutex_unlock(&priv->mutex);
2758 /* we are restarting association process
2759 * clear RXON_FILTER_ASSOC_MSK bit
2761 if (priv->iw_mode != NL80211_IFTYPE_AP) {
2762 iwl_scan_cancel_timeout(priv, 100);
2763 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2764 iwl_commit_rxon(priv);
2767 iwl_power_update_mode(priv, 0);
2769 /* Per mac80211.h: This is only used in IBSS mode... */
2770 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
2772 /* switch to CAM during association period.
2773 * the ucode will block any association/authentication
2774 * frome during assiciation period if it can not hear
2775 * the AP because of PM. the timer enable PM back is
2776 * association do not complete
2778 if (priv->hw->conf.channel->flags & (IEEE80211_CHAN_PASSIVE_SCAN |
2779 IEEE80211_CHAN_RADAR))
2780 iwl_power_disable_management(priv, 3000);
2782 IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n");
2783 mutex_unlock(&priv->mutex);
2789 mutex_unlock(&priv->mutex);
2791 IWL_DEBUG_MAC80211(priv, "leave\n");
2794 static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
2796 struct iwl_priv *priv = hw->priv;
2797 unsigned long flags;
2800 IWL_DEBUG_MAC80211(priv, "enter\n");
2802 if (!iwl_is_ready_rf(priv)) {
2803 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2807 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
2808 IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n");
2812 spin_lock_irqsave(&priv->lock, flags);
2814 if (priv->ibss_beacon)
2815 dev_kfree_skb(priv->ibss_beacon);
2817 priv->ibss_beacon = skb;
2820 timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
2821 priv->timestamp = le64_to_cpu(timestamp);
2823 IWL_DEBUG_MAC80211(priv, "leave\n");
2824 spin_unlock_irqrestore(&priv->lock, flags);
2826 iwl_reset_qos(priv);
2828 iwl_post_associate(priv);
2834 /*****************************************************************************
2838 *****************************************************************************/
2840 #ifdef CONFIG_IWLWIFI_DEBUG
2843 * The following adds a new attribute to the sysfs representation
2844 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
2845 * used for controlling the debug level.
2847 * See the level definitions in iwl for details.
2850 static ssize_t show_debug_level(struct device *d,
2851 struct device_attribute *attr, char *buf)
2853 struct iwl_priv *priv = d->driver_data;
2855 return sprintf(buf, "0x%08X\n", priv->debug_level);
2857 static ssize_t store_debug_level(struct device *d,
2858 struct device_attribute *attr,
2859 const char *buf, size_t count)
2861 struct iwl_priv *priv = d->driver_data;
2865 ret = strict_strtoul(buf, 0, &val);
2867 IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
2869 priv->debug_level = val;
2871 return strnlen(buf, count);
2874 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
2875 show_debug_level, store_debug_level);
2878 #endif /* CONFIG_IWLWIFI_DEBUG */
2881 static ssize_t show_version(struct device *d,
2882 struct device_attribute *attr, char *buf)
2884 struct iwl_priv *priv = d->driver_data;
2885 struct iwl_alive_resp *palive = &priv->card_alive;
2889 if (palive->is_valid)
2890 pos += sprintf(buf + pos,
2891 "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
2892 "fw type: 0x%01X 0x%01X\n",
2893 palive->ucode_major, palive->ucode_minor,
2894 palive->sw_rev[0], palive->sw_rev[1],
2895 palive->ver_type, palive->ver_subtype);
2897 pos += sprintf(buf + pos, "fw not loaded\n");
2900 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
2901 pos += sprintf(buf + pos, "EEPROM version: 0x%x\n",
2904 pos += sprintf(buf + pos, "EEPROM not initialzed\n");
2910 static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
2912 static ssize_t show_temperature(struct device *d,
2913 struct device_attribute *attr, char *buf)
2915 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
2917 if (!iwl_is_alive(priv))
2920 return sprintf(buf, "%d\n", priv->temperature);
2923 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
2925 static ssize_t show_tx_power(struct device *d,
2926 struct device_attribute *attr, char *buf)
2928 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
2930 if (!iwl_is_ready_rf(priv))
2931 return sprintf(buf, "off\n");
2933 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
2936 static ssize_t store_tx_power(struct device *d,
2937 struct device_attribute *attr,
2938 const char *buf, size_t count)
2940 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
2944 ret = strict_strtoul(buf, 10, &val);
2946 IWL_INFO(priv, "%s is not in decimal form.\n", buf);
2948 iwl_set_tx_power(priv, val, false);
2953 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
2955 static ssize_t show_flags(struct device *d,
2956 struct device_attribute *attr, char *buf)
2958 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
2960 return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
2963 static ssize_t store_flags(struct device *d,
2964 struct device_attribute *attr,
2965 const char *buf, size_t count)
2967 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
2970 int ret = strict_strtoul(buf, 0, &val);
2975 mutex_lock(&priv->mutex);
2976 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
2977 /* Cancel any currently running scans... */
2978 if (iwl_scan_cancel_timeout(priv, 100))
2979 IWL_WARN(priv, "Could not cancel scan.\n");
2981 IWL_DEBUG_INFO(priv, "Commit rxon.flags = 0x%04X\n", flags);
2982 priv->staging_rxon.flags = cpu_to_le32(flags);
2983 iwl_commit_rxon(priv);
2986 mutex_unlock(&priv->mutex);
2991 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
2993 static ssize_t show_filter_flags(struct device *d,
2994 struct device_attribute *attr, char *buf)
2996 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
2998 return sprintf(buf, "0x%04X\n",
2999 le32_to_cpu(priv->active_rxon.filter_flags));
3002 static ssize_t store_filter_flags(struct device *d,
3003 struct device_attribute *attr,
3004 const char *buf, size_t count)
3006 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
3009 int ret = strict_strtoul(buf, 0, &val);
3012 filter_flags = (u32)val;
3014 mutex_lock(&priv->mutex);
3015 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
3016 /* Cancel any currently running scans... */
3017 if (iwl_scan_cancel_timeout(priv, 100))
3018 IWL_WARN(priv, "Could not cancel scan.\n");
3020 IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = "
3021 "0x%04X\n", filter_flags);
3022 priv->staging_rxon.filter_flags =
3023 cpu_to_le32(filter_flags);
3024 iwl_commit_rxon(priv);
3027 mutex_unlock(&priv->mutex);
3032 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
3033 store_filter_flags);
3035 static ssize_t store_power_level(struct device *d,
3036 struct device_attribute *attr,
3037 const char *buf, size_t count)
3039 struct iwl_priv *priv = dev_get_drvdata(d);
3044 mutex_lock(&priv->mutex);
3046 ret = strict_strtoul(buf, 10, &mode);
3050 ret = iwl_power_set_user_mode(priv, mode);
3052 IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
3058 mutex_unlock(&priv->mutex);
3062 static ssize_t show_power_level(struct device *d,
3063 struct device_attribute *attr, char *buf)
3065 struct iwl_priv *priv = dev_get_drvdata(d);
3066 int mode = priv->power_data.user_power_setting;
3067 int system = priv->power_data.system_power_setting;
3068 int level = priv->power_data.power_mode;
3072 case IWL_POWER_SYS_AUTO:
3073 p += sprintf(p, "SYSTEM:auto");
3075 case IWL_POWER_SYS_AC:
3076 p += sprintf(p, "SYSTEM:ac");
3078 case IWL_POWER_SYS_BATTERY:
3079 p += sprintf(p, "SYSTEM:battery");
3083 p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO) ?
3085 p += sprintf(p, "\tINDEX:%d", level);
3086 p += sprintf(p, "\n");
3090 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
3094 static ssize_t show_statistics(struct device *d,
3095 struct device_attribute *attr, char *buf)
3097 struct iwl_priv *priv = dev_get_drvdata(d);
3098 u32 size = sizeof(struct iwl_notif_statistics);
3099 u32 len = 0, ofs = 0;
3100 u8 *data = (u8 *)&priv->statistics;
3103 if (!iwl_is_alive(priv))
3106 mutex_lock(&priv->mutex);
3107 rc = iwl_send_statistics_request(priv, 0);
3108 mutex_unlock(&priv->mutex);
3112 "Error sending statistics request: 0x%08X\n", rc);
3116 while (size && (PAGE_SIZE - len)) {
3117 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3118 PAGE_SIZE - len, 1);
3120 if (PAGE_SIZE - len)
3124 size -= min(size, 16U);
3130 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
3133 /*****************************************************************************
3135 * driver setup and teardown
3137 *****************************************************************************/
3139 static void iwl_setup_deferred_work(struct iwl_priv *priv)
3141 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
3143 init_waitqueue_head(&priv->wait_command_queue);
3145 INIT_WORK(&priv->up, iwl_bg_up);
3146 INIT_WORK(&priv->restart, iwl_bg_restart);
3147 INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish);
3148 INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill);
3149 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
3150 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
3151 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
3152 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
3154 iwl_setup_scan_deferred_work(priv);
3155 iwl_setup_power_deferred_work(priv);
3157 if (priv->cfg->ops->lib->setup_deferred_work)
3158 priv->cfg->ops->lib->setup_deferred_work(priv);
3160 init_timer(&priv->statistics_periodic);
3161 priv->statistics_periodic.data = (unsigned long)priv;
3162 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
3164 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
3165 iwl_irq_tasklet, (unsigned long)priv);
3168 static void iwl_cancel_deferred_work(struct iwl_priv *priv)
3170 if (priv->cfg->ops->lib->cancel_deferred_work)
3171 priv->cfg->ops->lib->cancel_deferred_work(priv);
3173 cancel_delayed_work_sync(&priv->init_alive_start);
3174 cancel_delayed_work(&priv->scan_check);
3175 cancel_delayed_work_sync(&priv->set_power_save);
3176 cancel_delayed_work(&priv->alive_start);
3177 cancel_work_sync(&priv->beacon_update);
3178 del_timer_sync(&priv->statistics_periodic);
3181 static struct attribute *iwl_sysfs_entries[] = {
3182 &dev_attr_flags.attr,
3183 &dev_attr_filter_flags.attr,
3184 &dev_attr_power_level.attr,
3185 &dev_attr_statistics.attr,
3186 &dev_attr_temperature.attr,
3187 &dev_attr_tx_power.attr,
3188 #ifdef CONFIG_IWLWIFI_DEBUG
3189 &dev_attr_debug_level.attr,
3191 &dev_attr_version.attr,
3196 static struct attribute_group iwl_attribute_group = {
3197 .name = NULL, /* put in device directory */
3198 .attrs = iwl_sysfs_entries,
3201 static struct ieee80211_ops iwl_hw_ops = {
3203 .start = iwl_mac_start,
3204 .stop = iwl_mac_stop,
3205 .add_interface = iwl_mac_add_interface,
3206 .remove_interface = iwl_mac_remove_interface,
3207 .config = iwl_mac_config,
3208 .config_interface = iwl_mac_config_interface,
3209 .configure_filter = iwl_configure_filter,
3210 .set_key = iwl_mac_set_key,
3211 .update_tkip_key = iwl_mac_update_tkip_key,
3212 .get_stats = iwl_mac_get_stats,
3213 .get_tx_stats = iwl_mac_get_tx_stats,
3214 .conf_tx = iwl_mac_conf_tx,
3215 .reset_tsf = iwl_mac_reset_tsf,
3216 .bss_info_changed = iwl_bss_info_changed,
3217 .ampdu_action = iwl_mac_ampdu_action,
3218 .hw_scan = iwl_mac_hw_scan
3221 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3224 struct iwl_priv *priv;
3225 struct ieee80211_hw *hw;
3226 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
3227 unsigned long flags;
3230 /************************
3231 * 1. Allocating HW data
3232 ************************/
3234 /* Disabling hardware scan means that mac80211 will perform scans
3235 * "the hard way", rather than using device's scan. */
3236 if (cfg->mod_params->disable_hw_scan) {
3237 if (cfg->mod_params->debug & IWL_DL_INFO)
3238 dev_printk(KERN_DEBUG, &(pdev->dev),
3239 "Disabling hw_scan\n");
3240 iwl_hw_ops.hw_scan = NULL;
3243 hw = iwl_alloc_all(cfg, &iwl_hw_ops);
3249 /* At this point both hw and priv are allocated. */
3251 SET_IEEE80211_DEV(hw, &pdev->dev);
3253 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
3255 priv->pci_dev = pdev;
3257 #ifdef CONFIG_IWLWIFI_DEBUG
3258 priv->debug_level = priv->cfg->mod_params->debug;
3259 atomic_set(&priv->restrict_refcnt, 0);
3262 /**************************
3263 * 2. Initializing PCI bus
3264 **************************/
3265 if (pci_enable_device(pdev)) {
3267 goto out_ieee80211_free_hw;
3270 pci_set_master(pdev);
3272 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
3274 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
3276 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3278 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3279 /* both attempts failed: */
3281 IWL_WARN(priv, "No suitable DMA available.\n");
3282 goto out_pci_disable_device;
3286 err = pci_request_regions(pdev, DRV_NAME);
3288 goto out_pci_disable_device;
3290 pci_set_drvdata(pdev, priv);
3293 /***********************
3294 * 3. Read REV register
3295 ***********************/
3296 priv->hw_base = pci_iomap(pdev, 0, 0);
3297 if (!priv->hw_base) {
3299 goto out_pci_release_regions;
3302 IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
3303 (unsigned long long) pci_resource_len(pdev, 0));
3304 IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
3306 iwl_hw_detect(priv);
3307 IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s REV=0x%X\n",
3308 priv->cfg->name, priv->hw_rev);
3310 /* We disable the RETRY_TIMEOUT register (0x41) to keep
3311 * PCI Tx retries from interfering with C3 CPU state */
3312 pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
3315 err = priv->cfg->ops->lib->apm_ops.init(priv);
3317 IWL_ERR(priv, "Failed to init APMG\n");
3323 /* Read the EEPROM */
3324 err = iwl_eeprom_init(priv);
3326 IWL_ERR(priv, "Unable to init EEPROM\n");
3329 err = iwl_eeprom_check_version(priv);
3331 goto out_free_eeprom;
3333 /* extract MAC Address */
3334 iwl_eeprom_get_mac(priv, priv->mac_addr);
3335 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr);
3336 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
3338 /************************
3339 * 5. Setup HW constants
3340 ************************/
3341 if (iwl_set_hw_params(priv)) {
3342 IWL_ERR(priv, "failed to set hw parameters\n");
3343 goto out_free_eeprom;
3346 /*******************
3348 *******************/
3350 err = iwl_init_drv(priv);
3352 goto out_free_eeprom;
3353 /* At this point both hw and priv are initialized. */
3355 /**********************************
3356 * 7. Initialize module parameters
3357 **********************************/
3359 /* Disable radio (SW RF KILL) via parameter when loading driver */
3360 if (priv->cfg->mod_params->disable) {
3361 set_bit(STATUS_RF_KILL_SW, &priv->status);
3362 IWL_DEBUG_INFO(priv, "Radio disabled.\n");
3365 /********************
3367 ********************/
3368 spin_lock_irqsave(&priv->lock, flags);
3369 iwl_disable_interrupts(priv);
3370 spin_unlock_irqrestore(&priv->lock, flags);
3372 pci_enable_msi(priv->pci_dev);
3374 err = request_irq(priv->pci_dev->irq, iwl_isr, IRQF_SHARED,
3377 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
3378 goto out_disable_msi;
3380 err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group);
3382 IWL_ERR(priv, "failed to create sysfs device attributes\n");
3386 iwl_setup_deferred_work(priv);
3387 iwl_setup_rx_handlers(priv);
3389 /**********************************
3390 * 9. Setup and register mac80211
3391 **********************************/
3393 /* enable interrupts if needed: hw bug w/a */
3394 pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd);
3395 if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
3396 pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
3397 pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd);
3400 iwl_enable_interrupts(priv);
3402 err = iwl_setup_mac(priv);
3404 goto out_remove_sysfs;
3406 err = iwl_dbgfs_register(priv, DRV_NAME);
3408 IWL_ERR(priv, "failed to create debugfs files\n");
3410 /* If platform's RF_KILL switch is NOT set to KILL */
3411 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
3412 clear_bit(STATUS_RF_KILL_HW, &priv->status);
3414 set_bit(STATUS_RF_KILL_HW, &priv->status);
3416 err = iwl_rfkill_init(priv);
3418 IWL_ERR(priv, "Unable to initialize RFKILL system. "
3419 "Ignoring error: %d\n", err);
3421 iwl_rfkill_set_hw_state(priv);
3423 iwl_power_initialize(priv);
3427 destroy_workqueue(priv->workqueue);
3428 priv->workqueue = NULL;
3429 sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
3431 free_irq(priv->pci_dev->irq, priv);
3433 pci_disable_msi(priv->pci_dev);
3434 iwl_uninit_drv(priv);
3436 iwl_eeprom_free(priv);
3438 pci_iounmap(pdev, priv->hw_base);
3439 out_pci_release_regions:
3440 pci_set_drvdata(pdev, NULL);
3441 pci_release_regions(pdev);
3442 out_pci_disable_device:
3443 pci_disable_device(pdev);
3444 out_ieee80211_free_hw:
3445 ieee80211_free_hw(priv->hw);
3450 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
3452 struct iwl_priv *priv = pci_get_drvdata(pdev);
3453 unsigned long flags;
3458 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
3460 iwl_dbgfs_unregister(priv);
3461 sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
3463 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3464 * to be called and iwl_down since we are removing the device
3465 * we need to set STATUS_EXIT_PENDING bit.
3467 set_bit(STATUS_EXIT_PENDING, &priv->status);
3468 if (priv->mac80211_registered) {
3469 ieee80211_unregister_hw(priv->hw);
3470 priv->mac80211_registered = 0;
3475 /* make sure we flush any pending irq or
3476 * tasklet for the driver
3478 spin_lock_irqsave(&priv->lock, flags);
3479 iwl_disable_interrupts(priv);
3480 spin_unlock_irqrestore(&priv->lock, flags);
3482 iwl_synchronize_irq(priv);
3484 iwl_rfkill_unregister(priv);
3485 iwl_dealloc_ucode_pci(priv);
3488 iwl_rx_queue_free(priv, &priv->rxq);
3489 iwl_hw_txq_ctx_free(priv);
3491 iwl_clear_stations_table(priv);
3492 iwl_eeprom_free(priv);
3495 /*netif_stop_queue(dev); */
3496 flush_workqueue(priv->workqueue);
3498 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3499 * priv->workqueue... so we can't take down the workqueue
3501 destroy_workqueue(priv->workqueue);
3502 priv->workqueue = NULL;
3504 free_irq(priv->pci_dev->irq, priv);
3505 pci_disable_msi(priv->pci_dev);
3506 pci_iounmap(pdev, priv->hw_base);
3507 pci_release_regions(pdev);
3508 pci_disable_device(pdev);
3509 pci_set_drvdata(pdev, NULL);
3511 iwl_uninit_drv(priv);
3513 if (priv->ibss_beacon)
3514 dev_kfree_skb(priv->ibss_beacon);
3516 ieee80211_free_hw(priv->hw);
3520 /*****************************************************************************
3522 * driver and module entry point
3524 *****************************************************************************/
3526 /* Hardware specific file defines the PCI IDs table for that hardware module */
3527 static struct pci_device_id iwl_hw_card_ids[] = {
3528 #ifdef CONFIG_IWL4965
3529 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
3530 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
3531 #endif /* CONFIG_IWL4965 */
3532 #ifdef CONFIG_IWL5000
3533 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)},
3534 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)},
3535 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)},
3536 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)},
3537 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)},
3538 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)},
3539 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
3540 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
3541 {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)},
3542 {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)},
3543 /* 5350 WiFi/WiMax */
3544 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)},
3545 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)},
3546 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)},
3547 /* 5150 Wifi/WiMax */
3548 {IWL_PCI_DEVICE(0x423C, PCI_ANY_ID, iwl5150_agn_cfg)},
3549 {IWL_PCI_DEVICE(0x423D, PCI_ANY_ID, iwl5150_agn_cfg)},
3550 /* 6000/6050 Series */
3551 {IWL_PCI_DEVICE(0x0082, 0x1102, iwl6000_2ag_cfg)},
3552 {IWL_PCI_DEVICE(0x0085, 0x1112, iwl6000_2ag_cfg)},
3553 {IWL_PCI_DEVICE(0x0082, 0x1122, iwl6000_2ag_cfg)},
3554 {IWL_PCI_DEVICE(0x422B, PCI_ANY_ID, iwl6000_3agn_cfg)},
3555 {IWL_PCI_DEVICE(0x4238, PCI_ANY_ID, iwl6000_3agn_cfg)},
3556 {IWL_PCI_DEVICE(0x0082, PCI_ANY_ID, iwl6000_2agn_cfg)},
3557 {IWL_PCI_DEVICE(0x0085, PCI_ANY_ID, iwl6000_3agn_cfg)},
3558 {IWL_PCI_DEVICE(0x0086, PCI_ANY_ID, iwl6050_3agn_cfg)},
3559 {IWL_PCI_DEVICE(0x0087, PCI_ANY_ID, iwl6050_2agn_cfg)},
3560 {IWL_PCI_DEVICE(0x0088, PCI_ANY_ID, iwl6050_3agn_cfg)},
3561 {IWL_PCI_DEVICE(0x0089, PCI_ANY_ID, iwl6050_2agn_cfg)},
3562 /* 1000 Series WiFi */
3563 {IWL_PCI_DEVICE(0x0083, PCI_ANY_ID, iwl1000_bgn_cfg)},
3564 {IWL_PCI_DEVICE(0x0084, PCI_ANY_ID, iwl1000_bgn_cfg)},
3565 #endif /* CONFIG_IWL5000 */
3569 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
3571 static struct pci_driver iwl_driver = {
3573 .id_table = iwl_hw_card_ids,
3574 .probe = iwl_pci_probe,
3575 .remove = __devexit_p(iwl_pci_remove),
3577 .suspend = iwl_pci_suspend,
3578 .resume = iwl_pci_resume,
3582 static int __init iwl_init(void)
3586 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
3587 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
3589 ret = iwlagn_rate_control_register();
3591 printk(KERN_ERR DRV_NAME
3592 "Unable to register rate control algorithm: %d\n", ret);
3596 ret = pci_register_driver(&iwl_driver);
3598 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
3599 goto error_register;
3605 iwlagn_rate_control_unregister();
3609 static void __exit iwl_exit(void)
3611 pci_unregister_driver(&iwl_driver);
3612 iwlagn_rate_control_unregister();
3615 module_exit(iwl_exit);
3616 module_init(iwl_init);