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/ieee80211_radiotap.h>
44 #include <net/lib80211.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #define DRV_NAME "iwl3945"
52 #include "iwl-3945-fh.h"
53 #include "iwl-commands.h"
56 #include "iwl-helpers.h"
61 * module name, copyright, version, etc.
64 #define DRV_DESCRIPTION \
65 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
67 #ifdef CONFIG_IWLWIFI_DEBUG
73 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
79 #define IWL39_VERSION "1.2.26k" VD VS
80 #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation"
81 #define DRV_AUTHOR "<ilw@linux.intel.com>"
82 #define DRV_VERSION IWL39_VERSION
85 MODULE_DESCRIPTION(DRV_DESCRIPTION);
86 MODULE_VERSION(DRV_VERSION);
87 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
88 MODULE_LICENSE("GPL");
90 /* module parameters */
91 struct iwl_mod_params iwl3945_mod_params = {
92 .num_of_queues = IWL39_NUM_QUEUES, /* Not used */
95 /* the rest are 0 by default */
99 * iwl3945_get_antenna_flags - Get antenna flags for RXON command
100 * @priv: eeprom and antenna fields are used to determine antenna flags
102 * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed
103 * iwl3945_mod_params.antenna specifies the antenna diversity mode:
105 * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself
106 * IWL_ANTENNA_MAIN - Force MAIN antenna
107 * IWL_ANTENNA_AUX - Force AUX antenna
109 __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv)
111 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
113 switch (iwl3945_mod_params.antenna) {
114 case IWL_ANTENNA_DIVERSITY:
117 case IWL_ANTENNA_MAIN:
118 if (eeprom->antenna_switch_type)
119 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
120 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
122 case IWL_ANTENNA_AUX:
123 if (eeprom->antenna_switch_type)
124 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
125 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
128 /* bad antenna selector value */
129 IWL_ERR(priv, "Bad antenna selector value (0x%x)\n",
130 iwl3945_mod_params.antenna);
132 return 0; /* "diversity" is default if error */
135 static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
136 struct ieee80211_key_conf *keyconf,
140 __le16 key_flags = 0;
143 key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
144 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
146 if (sta_id == priv->hw_params.bcast_sta_id)
147 key_flags |= STA_KEY_MULTICAST_MSK;
149 keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
150 keyconf->hw_key_idx = keyconf->keyidx;
151 key_flags &= ~STA_KEY_FLG_INVALID;
153 spin_lock_irqsave(&priv->sta_lock, flags);
154 priv->stations[sta_id].keyinfo.alg = keyconf->alg;
155 priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
156 memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
159 memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
162 if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
163 == STA_KEY_FLG_NO_ENC)
164 priv->stations[sta_id].sta.key.key_offset =
165 iwl_get_free_ucode_key_index(priv);
166 /* else, we are overriding an existing key => no need to allocated room
169 WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
170 "no space for a new key");
172 priv->stations[sta_id].sta.key.key_flags = key_flags;
173 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
174 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
176 IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n");
178 ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
180 spin_unlock_irqrestore(&priv->sta_lock, flags);
185 static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv,
186 struct ieee80211_key_conf *keyconf,
192 static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv,
193 struct ieee80211_key_conf *keyconf,
199 static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
203 spin_lock_irqsave(&priv->sta_lock, flags);
204 memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key));
205 memset(&priv->stations[sta_id].sta.key, 0,
206 sizeof(struct iwl4965_keyinfo));
207 priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
208 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
209 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
210 spin_unlock_irqrestore(&priv->sta_lock, flags);
212 IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n");
213 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, 0);
217 static int iwl3945_set_dynamic_key(struct iwl_priv *priv,
218 struct ieee80211_key_conf *keyconf, u8 sta_id)
222 keyconf->hw_key_idx = HW_KEY_DYNAMIC;
224 switch (keyconf->alg) {
226 ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id);
229 ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id);
232 ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id);
235 IWL_ERR(priv, "Unknown alg: %s alg = %d\n", __func__, keyconf->alg);
239 IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
240 keyconf->alg, keyconf->keylen, keyconf->keyidx,
246 static int iwl3945_remove_static_key(struct iwl_priv *priv)
248 int ret = -EOPNOTSUPP;
253 static int iwl3945_set_static_key(struct iwl_priv *priv,
254 struct ieee80211_key_conf *key)
256 if (key->alg == ALG_WEP)
259 IWL_ERR(priv, "Static key invalid: alg %d\n", key->alg);
263 static void iwl3945_clear_free_frames(struct iwl_priv *priv)
265 struct list_head *element;
267 IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
270 while (!list_empty(&priv->free_frames)) {
271 element = priv->free_frames.next;
273 kfree(list_entry(element, struct iwl3945_frame, list));
274 priv->frames_count--;
277 if (priv->frames_count) {
278 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
280 priv->frames_count = 0;
284 static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
286 struct iwl3945_frame *frame;
287 struct list_head *element;
288 if (list_empty(&priv->free_frames)) {
289 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
291 IWL_ERR(priv, "Could not allocate frame!\n");
295 priv->frames_count++;
299 element = priv->free_frames.next;
301 return list_entry(element, struct iwl3945_frame, list);
304 static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
306 memset(frame, 0, sizeof(*frame));
307 list_add(&frame->list, &priv->free_frames);
310 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
311 struct ieee80211_hdr *hdr,
315 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
316 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
317 (priv->iw_mode != NL80211_IFTYPE_AP)))
320 if (priv->ibss_beacon->len > left)
323 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
325 return priv->ibss_beacon->len;
328 static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
330 struct iwl3945_frame *frame;
331 unsigned int frame_size;
335 frame = iwl3945_get_free_frame(priv);
338 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
343 rate = iwl_rate_get_lowest_plcp(priv);
345 frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
347 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
350 iwl3945_free_frame(priv, frame);
355 static void iwl3945_unset_hw_params(struct iwl_priv *priv)
357 if (priv->shared_virt)
358 pci_free_consistent(priv->pci_dev,
359 sizeof(struct iwl3945_shared),
364 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
365 struct ieee80211_tx_info *info,
366 struct iwl_device_cmd *cmd,
367 struct sk_buff *skb_frag,
370 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
371 struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo;
373 switch (keyinfo->alg) {
375 tx->sec_ctl = TX_CMD_SEC_CCM;
376 memcpy(tx->key, keyinfo->key, keyinfo->keylen);
377 IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n");
384 tx->sec_ctl = TX_CMD_SEC_WEP |
385 (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
387 if (keyinfo->keylen == 13)
388 tx->sec_ctl |= TX_CMD_SEC_KEY128;
390 memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen);
392 IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption "
393 "with key %d\n", info->control.hw_key->hw_key_idx);
397 IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg);
403 * handle build REPLY_TX command notification.
405 static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
406 struct iwl_device_cmd *cmd,
407 struct ieee80211_tx_info *info,
408 struct ieee80211_hdr *hdr, u8 std_id)
410 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
411 __le32 tx_flags = tx->tx_flags;
412 __le16 fc = hdr->frame_control;
413 u8 rc_flags = info->control.rates[0].flags;
415 tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
416 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
417 tx_flags |= TX_CMD_FLG_ACK_MSK;
418 if (ieee80211_is_mgmt(fc))
419 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
420 if (ieee80211_is_probe_resp(fc) &&
421 !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
422 tx_flags |= TX_CMD_FLG_TSF_MSK;
424 tx_flags &= (~TX_CMD_FLG_ACK_MSK);
425 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
429 if (ieee80211_has_morefrags(fc))
430 tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
432 if (ieee80211_is_data_qos(fc)) {
433 u8 *qc = ieee80211_get_qos_ctl(hdr);
434 tx->tid_tspec = qc[0] & 0xf;
435 tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
437 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
440 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
441 tx_flags |= TX_CMD_FLG_RTS_MSK;
442 tx_flags &= ~TX_CMD_FLG_CTS_MSK;
443 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
444 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
445 tx_flags |= TX_CMD_FLG_CTS_MSK;
448 if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
449 tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
451 tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
452 if (ieee80211_is_mgmt(fc)) {
453 if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
454 tx->timeout.pm_frame_timeout = cpu_to_le16(3);
456 tx->timeout.pm_frame_timeout = cpu_to_le16(2);
458 tx->timeout.pm_frame_timeout = 0;
459 #ifdef CONFIG_IWLWIFI_LEDS
460 priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
465 tx->tx_flags = tx_flags;
466 tx->next_frame_len = 0;
470 * start REPLY_TX command process
472 static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
474 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
475 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
476 struct iwl3945_tx_cmd *tx;
477 struct iwl_tx_queue *txq = NULL;
478 struct iwl_queue *q = NULL;
479 struct iwl_device_cmd *out_cmd;
480 struct iwl_cmd_meta *out_meta;
481 dma_addr_t phys_addr;
482 dma_addr_t txcmd_phys;
483 int txq_id = skb_get_queue_mapping(skb);
484 u16 len, idx, len_org, hdr_len; /* TODO: len_org is not used */
491 u8 wait_write_ptr = 0;
496 spin_lock_irqsave(&priv->lock, flags);
497 if (iwl_is_rfkill(priv)) {
498 IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n");
502 if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
503 IWL_ERR(priv, "ERROR: No TX rate available.\n");
507 unicast = !is_multicast_ether_addr(hdr->addr1);
510 fc = hdr->frame_control;
512 #ifdef CONFIG_IWLWIFI_DEBUG
513 if (ieee80211_is_auth(fc))
514 IWL_DEBUG_TX(priv, "Sending AUTH frame\n");
515 else if (ieee80211_is_assoc_req(fc))
516 IWL_DEBUG_TX(priv, "Sending ASSOC frame\n");
517 else if (ieee80211_is_reassoc_req(fc))
518 IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
521 /* drop all data frame if we are not associated */
522 if (ieee80211_is_data(fc) &&
523 (!iwl_is_monitor_mode(priv)) && /* packet injection */
524 (!iwl_is_associated(priv) ||
525 ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
526 IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n");
530 spin_unlock_irqrestore(&priv->lock, flags);
532 hdr_len = ieee80211_hdrlen(fc);
534 /* Find (or create) index into station table for destination station */
535 sta_id = iwl_get_sta_id(priv, hdr);
536 if (sta_id == IWL_INVALID_STATION) {
537 IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
542 IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id);
544 if (ieee80211_is_data_qos(fc)) {
545 qc = ieee80211_get_qos_ctl(hdr);
546 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
547 seq_number = priv->stations[sta_id].tid[tid].seq_number &
549 hdr->seq_ctrl = cpu_to_le16(seq_number) |
551 cpu_to_le16(IEEE80211_SCTL_FRAG));
555 /* Descriptor for chosen Tx queue */
556 txq = &priv->txq[txq_id];
559 spin_lock_irqsave(&priv->lock, flags);
561 idx = get_cmd_index(q, q->write_ptr, 0);
563 /* Set up driver data for this TFD */
564 memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
565 txq->txb[q->write_ptr].skb[0] = skb;
567 /* Init first empty entry in queue's array of Tx/cmd buffers */
568 out_cmd = txq->cmd[idx];
569 out_meta = &txq->meta[idx];
570 tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
571 memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
572 memset(tx, 0, sizeof(*tx));
575 * Set up the Tx-command (not MAC!) header.
576 * Store the chosen Tx queue and TFD index within the sequence field;
577 * after Tx, uCode's Tx response will return this value so driver can
578 * locate the frame within the tx queue and do post-tx processing.
580 out_cmd->hdr.cmd = REPLY_TX;
581 out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
582 INDEX_TO_SEQ(q->write_ptr)));
584 /* Copy MAC header from skb into command buffer */
585 memcpy(tx->hdr, hdr, hdr_len);
588 if (info->control.hw_key)
589 iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id);
591 /* TODO need this for burst mode later on */
592 iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id);
594 /* set is_hcca to 0; it probably will never be implemented */
595 iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
597 /* Total # bytes to be transmitted */
599 tx->len = cpu_to_le16(len);
602 tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
603 tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
605 if (!ieee80211_has_morefrags(hdr->frame_control)) {
606 txq->need_update = 1;
608 priv->stations[sta_id].tid[tid].seq_number = seq_number;
611 txq->need_update = 0;
614 IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
615 le16_to_cpu(out_cmd->hdr.sequence));
616 IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx->tx_flags));
617 iwl_print_hex_dump(IWL_DL_TX, tx, sizeof(*tx));
618 iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx->hdr,
619 ieee80211_hdrlen(fc));
622 * Use the first empty entry in this queue's command buffer array
623 * to contain the Tx command and MAC header concatenated together
624 * (payload data will be in another buffer).
625 * Size of this varies, due to varying MAC header length.
626 * If end is not dword aligned, we'll have 2 extra bytes at the end
627 * of the MAC header (device reads on dword boundaries).
628 * We'll tell device about this padding later.
630 len = sizeof(struct iwl3945_tx_cmd) +
631 sizeof(struct iwl_cmd_header) + hdr_len;
634 len = (len + 3) & ~3;
641 /* Physical address of this Tx command's header (not MAC header!),
642 * within command buffer array. */
643 txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr,
644 len, PCI_DMA_TODEVICE);
645 /* we do not map meta data ... so we can safely access address to
646 * provide to unmap command*/
647 pci_unmap_addr_set(out_meta, mapping, txcmd_phys);
648 pci_unmap_len_set(out_meta, len, len);
650 /* Add buffer containing Tx command and MAC(!) header to TFD's
652 priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
653 txcmd_phys, len, 1, 0);
656 /* Set up TFD's 2nd entry to point directly to remainder of skb,
657 * if any (802.11 null frames have no payload). */
658 len = skb->len - hdr_len;
660 phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
661 len, PCI_DMA_TODEVICE);
662 priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
668 /* Tell device the write index *just past* this latest filled TFD */
669 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
670 rc = iwl_txq_update_write_ptr(priv, txq);
671 spin_unlock_irqrestore(&priv->lock, flags);
676 if ((iwl_queue_space(q) < q->high_mark)
677 && priv->mac80211_registered) {
678 if (wait_write_ptr) {
679 spin_lock_irqsave(&priv->lock, flags);
680 txq->need_update = 1;
681 iwl_txq_update_write_ptr(priv, txq);
682 spin_unlock_irqrestore(&priv->lock, flags);
685 iwl_stop_queue(priv, skb_get_queue_mapping(skb));
691 spin_unlock_irqrestore(&priv->lock, flags);
696 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
698 #include "iwl-spectrum.h"
700 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
701 #define BEACON_TIME_MASK_HIGH 0xFF000000
702 #define TIME_UNIT 1024
705 * extended beacon time format
706 * time in usec will be changed into a 32-bit value in 8:24 format
707 * the high 1 byte is the beacon counts
708 * the lower 3 bytes is the time in usec within one beacon interval
711 static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
715 u32 interval = beacon_interval * 1024;
717 if (!interval || !usec)
720 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
721 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
723 return (quot << 24) + rem;
726 /* base is usually what we get from ucode with each received frame,
727 * the same as HW timer counter counting down
730 static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
732 u32 base_low = base & BEACON_TIME_MASK_LOW;
733 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
734 u32 interval = beacon_interval * TIME_UNIT;
735 u32 res = (base & BEACON_TIME_MASK_HIGH) +
736 (addon & BEACON_TIME_MASK_HIGH);
738 if (base_low > addon_low)
739 res += base_low - addon_low;
740 else if (base_low < addon_low) {
741 res += interval + base_low - addon_low;
746 return cpu_to_le32(res);
749 static int iwl3945_get_measurement(struct iwl_priv *priv,
750 struct ieee80211_measurement_params *params,
753 struct iwl_spectrum_cmd spectrum;
754 struct iwl_rx_packet *res;
755 struct iwl_host_cmd cmd = {
756 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
757 .data = (void *)&spectrum,
758 .flags = CMD_WANT_SKB,
760 u32 add_time = le64_to_cpu(params->start_time);
762 int spectrum_resp_status;
763 int duration = le16_to_cpu(params->duration);
765 if (iwl_is_associated(priv))
767 iwl3945_usecs_to_beacons(
768 le64_to_cpu(params->start_time) - priv->last_tsf,
769 le16_to_cpu(priv->rxon_timing.beacon_interval));
771 memset(&spectrum, 0, sizeof(spectrum));
773 spectrum.channel_count = cpu_to_le16(1);
775 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
776 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
777 cmd.len = sizeof(spectrum);
778 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
780 if (iwl_is_associated(priv))
781 spectrum.start_time =
782 iwl3945_add_beacon_time(priv->last_beacon_time,
784 le16_to_cpu(priv->rxon_timing.beacon_interval));
786 spectrum.start_time = 0;
788 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
789 spectrum.channels[0].channel = params->channel;
790 spectrum.channels[0].type = type;
791 if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
792 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
793 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
795 rc = iwl_send_cmd_sync(priv, &cmd);
799 res = (struct iwl_rx_packet *)cmd.reply_skb->data;
800 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
801 IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
805 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
806 switch (spectrum_resp_status) {
807 case 0: /* Command will be handled */
808 if (res->u.spectrum.id != 0xff) {
809 IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n",
811 priv->measurement_status &= ~MEASUREMENT_READY;
813 priv->measurement_status |= MEASUREMENT_ACTIVE;
817 case 1: /* Command will not be handled */
822 dev_kfree_skb_any(cmd.reply_skb);
828 static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
829 struct iwl_rx_mem_buffer *rxb)
831 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
832 struct iwl_alive_resp *palive;
833 struct delayed_work *pwork;
835 palive = &pkt->u.alive_frame;
837 IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
839 palive->is_valid, palive->ver_type,
840 palive->ver_subtype);
842 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
843 IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
844 memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
845 sizeof(struct iwl_alive_resp));
846 pwork = &priv->init_alive_start;
848 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
849 memcpy(&priv->card_alive, &pkt->u.alive_frame,
850 sizeof(struct iwl_alive_resp));
851 pwork = &priv->alive_start;
852 iwl3945_disable_events(priv);
855 /* We delay the ALIVE response by 5ms to
856 * give the HW RF Kill time to activate... */
857 if (palive->is_valid == UCODE_VALID_OK)
858 queue_delayed_work(priv->workqueue, pwork,
859 msecs_to_jiffies(5));
861 IWL_WARN(priv, "uCode did not respond OK.\n");
864 static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
865 struct iwl_rx_mem_buffer *rxb)
867 #ifdef CONFIG_IWLWIFI_DEBUG
868 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
871 IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
875 static void iwl3945_bg_beacon_update(struct work_struct *work)
877 struct iwl_priv *priv =
878 container_of(work, struct iwl_priv, beacon_update);
879 struct sk_buff *beacon;
881 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
882 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
885 IWL_ERR(priv, "update beacon failed\n");
889 mutex_lock(&priv->mutex);
890 /* new beacon skb is allocated every time; dispose previous.*/
891 if (priv->ibss_beacon)
892 dev_kfree_skb(priv->ibss_beacon);
894 priv->ibss_beacon = beacon;
895 mutex_unlock(&priv->mutex);
897 iwl3945_send_beacon_cmd(priv);
900 static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
901 struct iwl_rx_mem_buffer *rxb)
903 #ifdef CONFIG_IWLWIFI_DEBUG
904 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
905 struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
906 u8 rate = beacon->beacon_notify_hdr.rate;
908 IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
909 "tsf %d %d rate %d\n",
910 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
911 beacon->beacon_notify_hdr.failure_frame,
912 le32_to_cpu(beacon->ibss_mgr_status),
913 le32_to_cpu(beacon->high_tsf),
914 le32_to_cpu(beacon->low_tsf), rate);
917 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
918 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
919 queue_work(priv->workqueue, &priv->beacon_update);
922 /* Handle notification from uCode that card's power state is changing
923 * due to software, hardware, or critical temperature RFKILL */
924 static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
925 struct iwl_rx_mem_buffer *rxb)
927 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
928 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
929 unsigned long status = priv->status;
931 IWL_WARN(priv, "Card state received: HW:%s SW:%s\n",
932 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
933 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
935 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
936 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
938 if (flags & HW_CARD_DISABLED)
939 set_bit(STATUS_RF_KILL_HW, &priv->status);
941 clear_bit(STATUS_RF_KILL_HW, &priv->status);
944 iwl_scan_cancel(priv);
946 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
947 test_bit(STATUS_RF_KILL_HW, &priv->status)))
948 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
949 test_bit(STATUS_RF_KILL_HW, &priv->status));
951 wake_up_interruptible(&priv->wait_command_queue);
955 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
957 * Setup the RX handlers for each of the reply types sent from the uCode
960 * This function chains into the hardware specific files for them to setup
961 * any hardware specific handlers as well.
963 static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
965 priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
966 priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
967 priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error;
968 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
969 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
970 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
971 iwl_rx_pm_debug_statistics_notif;
972 priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
975 * The same handler is used for both the REPLY to a discrete
976 * statistics request from the host as well as for the periodic
977 * statistics notifications (after received beacons) from the uCode.
979 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
980 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
982 iwl_setup_spectrum_handlers(priv);
983 iwl_setup_rx_scan_handlers(priv);
984 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
986 /* Set up hardware specific Rx handlers */
987 iwl3945_hw_rx_handler_setup(priv);
990 /************************** RX-FUNCTIONS ****************************/
992 * Rx theory of operation
994 * The host allocates 32 DMA target addresses and passes the host address
995 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
999 * The host/firmware share two index registers for managing the Rx buffers.
1001 * The READ index maps to the first position that the firmware may be writing
1002 * to -- the driver can read up to (but not including) this position and get
1004 * The READ index is managed by the firmware once the card is enabled.
1006 * The WRITE index maps to the last position the driver has read from -- the
1007 * position preceding WRITE is the last slot the firmware can place a packet.
1009 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
1012 * During initialization, the host sets up the READ queue position to the first
1013 * INDEX position, and WRITE to the last (READ - 1 wrapped)
1015 * When the firmware places a packet in a buffer, it will advance the READ index
1016 * and fire the RX interrupt. The driver can then query the READ index and
1017 * process as many packets as possible, moving the WRITE index forward as it
1018 * resets the Rx queue buffers with new memory.
1020 * The management in the driver is as follows:
1021 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
1022 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
1023 * to replenish the iwl->rxq->rx_free.
1024 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
1025 * iwl->rxq is replenished and the READ INDEX is updated (updating the
1026 * 'processed' and 'read' driver indexes as well)
1027 * + A received packet is processed and handed to the kernel network stack,
1028 * detached from the iwl->rxq. The driver 'processed' index is updated.
1029 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
1030 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
1031 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
1032 * were enough free buffers and RX_STALLED is set it is cleared.
1037 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
1038 * iwl3945_rx_queue_restock
1039 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
1040 * queue, updates firmware pointers, and updates
1041 * the WRITE index. If insufficient rx_free buffers
1042 * are available, schedules iwl3945_rx_replenish
1044 * -- enable interrupts --
1045 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
1046 * READ INDEX, detaching the SKB from the pool.
1047 * Moves the packet buffer from queue to rx_used.
1048 * Calls iwl3945_rx_queue_restock to refill any empty
1055 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
1057 static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
1058 dma_addr_t dma_addr)
1060 return cpu_to_le32((u32)dma_addr);
1064 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
1066 * If there are slots in the RX queue that need to be restocked,
1067 * and we have free pre-allocated buffers, fill the ranks as much
1068 * as we can, pulling from rx_free.
1070 * This moves the 'write' index forward to catch up with 'processed', and
1071 * also updates the memory address in the firmware to reference the new
1074 static int iwl3945_rx_queue_restock(struct iwl_priv *priv)
1076 struct iwl_rx_queue *rxq = &priv->rxq;
1077 struct list_head *element;
1078 struct iwl_rx_mem_buffer *rxb;
1079 unsigned long flags;
1082 spin_lock_irqsave(&rxq->lock, flags);
1083 write = rxq->write & ~0x7;
1084 while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
1085 /* Get next free Rx buffer, remove from free list */
1086 element = rxq->rx_free.next;
1087 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
1090 /* Point to Rx buffer via next RBD in circular buffer */
1091 rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr);
1092 rxq->queue[rxq->write] = rxb;
1093 rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
1096 spin_unlock_irqrestore(&rxq->lock, flags);
1097 /* If the pre-allocated buffer pool is dropping low, schedule to
1099 if (rxq->free_count <= RX_LOW_WATERMARK)
1100 queue_work(priv->workqueue, &priv->rx_replenish);
1103 /* If we've added more space for the firmware to place data, tell it.
1104 * Increment device's write pointer in multiples of 8. */
1105 if ((rxq->write_actual != (rxq->write & ~0x7))
1106 || (abs(rxq->write - rxq->read) > 7)) {
1107 spin_lock_irqsave(&rxq->lock, flags);
1108 rxq->need_update = 1;
1109 spin_unlock_irqrestore(&rxq->lock, flags);
1110 rc = iwl_rx_queue_update_write_ptr(priv, rxq);
1119 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
1121 * When moving to rx_free an SKB is allocated for the slot.
1123 * Also restock the Rx queue via iwl3945_rx_queue_restock.
1124 * This is called as a scheduled work item (except for during initialization)
1126 static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority)
1128 struct iwl_rx_queue *rxq = &priv->rxq;
1129 struct list_head *element;
1130 struct iwl_rx_mem_buffer *rxb;
1131 unsigned long flags;
1134 spin_lock_irqsave(&rxq->lock, flags);
1136 if (list_empty(&rxq->rx_used)) {
1137 spin_unlock_irqrestore(&rxq->lock, flags);
1141 element = rxq->rx_used.next;
1142 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
1144 spin_unlock_irqrestore(&rxq->lock, flags);
1146 /* Alloc a new receive buffer */
1148 alloc_skb(priv->hw_params.rx_buf_size,
1151 if (net_ratelimit())
1152 IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
1153 /* We don't reschedule replenish work here -- we will
1154 * call the restock method and if it still needs
1155 * more buffers it will schedule replenish */
1159 /* If radiotap head is required, reserve some headroom here.
1160 * The physical head count is a variable rx_stats->phy_count.
1161 * We reserve 4 bytes here. Plus these extra bytes, the
1162 * headroom of the physical head should be enough for the
1163 * radiotap head that iwl3945 supported. See iwl3945_rt.
1165 skb_reserve(rxb->skb, 4);
1167 /* Get physical address of RB/SKB */
1168 rxb->real_dma_addr = pci_map_single(priv->pci_dev,
1170 priv->hw_params.rx_buf_size,
1171 PCI_DMA_FROMDEVICE);
1173 spin_lock_irqsave(&rxq->lock, flags);
1174 list_add_tail(&rxb->list, &rxq->rx_free);
1175 priv->alloc_rxb_skb++;
1177 spin_unlock_irqrestore(&rxq->lock, flags);
1181 void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
1183 unsigned long flags;
1185 spin_lock_irqsave(&rxq->lock, flags);
1186 INIT_LIST_HEAD(&rxq->rx_free);
1187 INIT_LIST_HEAD(&rxq->rx_used);
1188 /* Fill the rx_used queue with _all_ of the Rx buffers */
1189 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
1190 /* In the reset function, these buffers may have been allocated
1191 * to an SKB, so we need to unmap and free potential storage */
1192 if (rxq->pool[i].skb != NULL) {
1193 pci_unmap_single(priv->pci_dev,
1194 rxq->pool[i].real_dma_addr,
1195 priv->hw_params.rx_buf_size,
1196 PCI_DMA_FROMDEVICE);
1197 priv->alloc_rxb_skb--;
1198 dev_kfree_skb(rxq->pool[i].skb);
1199 rxq->pool[i].skb = NULL;
1201 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
1204 /* Set us so that we have processed and used all buffers, but have
1205 * not restocked the Rx queue with fresh buffers */
1206 rxq->read = rxq->write = 0;
1207 rxq->free_count = 0;
1208 rxq->write_actual = 0;
1209 spin_unlock_irqrestore(&rxq->lock, flags);
1212 void iwl3945_rx_replenish(void *data)
1214 struct iwl_priv *priv = data;
1215 unsigned long flags;
1217 iwl3945_rx_allocate(priv, GFP_KERNEL);
1219 spin_lock_irqsave(&priv->lock, flags);
1220 iwl3945_rx_queue_restock(priv);
1221 spin_unlock_irqrestore(&priv->lock, flags);
1224 static void iwl3945_rx_replenish_now(struct iwl_priv *priv)
1226 iwl3945_rx_allocate(priv, GFP_ATOMIC);
1228 iwl3945_rx_queue_restock(priv);
1232 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
1233 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
1234 * This free routine walks the list of POOL entries and if SKB is set to
1235 * non NULL it is unmapped and freed
1237 static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
1240 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
1241 if (rxq->pool[i].skb != NULL) {
1242 pci_unmap_single(priv->pci_dev,
1243 rxq->pool[i].real_dma_addr,
1244 priv->hw_params.rx_buf_size,
1245 PCI_DMA_FROMDEVICE);
1246 dev_kfree_skb(rxq->pool[i].skb);
1250 pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
1252 pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status),
1253 rxq->rb_stts, rxq->rb_stts_dma);
1255 rxq->rb_stts = NULL;
1259 /* Convert linear signal-to-noise ratio into dB */
1260 static u8 ratio2dB[100] = {
1261 /* 0 1 2 3 4 5 6 7 8 9 */
1262 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
1263 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
1264 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
1265 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
1266 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
1267 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
1268 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
1269 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
1270 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
1271 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
1274 /* Calculates a relative dB value from a ratio of linear
1275 * (i.e. not dB) signal levels.
1276 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
1277 int iwl3945_calc_db_from_ratio(int sig_ratio)
1279 /* 1000:1 or higher just report as 60 dB */
1280 if (sig_ratio >= 1000)
1283 /* 100:1 or higher, divide by 10 and use table,
1284 * add 20 dB to make up for divide by 10 */
1285 if (sig_ratio >= 100)
1286 return 20 + (int)ratio2dB[sig_ratio/10];
1288 /* We shouldn't see this */
1292 /* Use table for ratios 1:1 - 99:1 */
1293 return (int)ratio2dB[sig_ratio];
1296 #define PERFECT_RSSI (-20) /* dBm */
1297 #define WORST_RSSI (-95) /* dBm */
1298 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
1300 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
1301 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
1302 * about formulas used below. */
1303 int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
1306 int degradation = PERFECT_RSSI - rssi_dbm;
1308 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
1309 * as indicator; formula is (signal dbm - noise dbm).
1310 * SNR at or above 40 is a great signal (100%).
1311 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
1312 * Weakest usable signal is usually 10 - 15 dB SNR. */
1314 if (rssi_dbm - noise_dbm >= 40)
1316 else if (rssi_dbm < noise_dbm)
1318 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
1320 /* Else use just the signal level.
1321 * This formula is a least squares fit of data points collected and
1322 * compared with a reference system that had a percentage (%) display
1323 * for signal quality. */
1325 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
1326 (15 * RSSI_RANGE + 62 * degradation)) /
1327 (RSSI_RANGE * RSSI_RANGE);
1331 else if (sig_qual < 1)
1338 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
1340 * Uses the priv->rx_handlers callback function array to invoke
1341 * the appropriate handlers, including command responses,
1342 * frame-received notifications, and other notifications.
1344 static void iwl3945_rx_handle(struct iwl_priv *priv)
1346 struct iwl_rx_mem_buffer *rxb;
1347 struct iwl_rx_packet *pkt;
1348 struct iwl_rx_queue *rxq = &priv->rxq;
1351 unsigned long flags;
1354 int total_empty = 0;
1356 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1357 * buffer that the driver may process (last buffer filled by ucode). */
1358 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
1361 /* calculate total frames need to be restock after handling RX */
1362 total_empty = r - priv->rxq.write_actual;
1363 if (total_empty < 0)
1364 total_empty += RX_QUEUE_SIZE;
1366 if (total_empty > (RX_QUEUE_SIZE / 2))
1368 /* Rx interrupt, but nothing sent from uCode */
1370 IWL_DEBUG(priv, IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
1373 rxb = rxq->queue[i];
1375 /* If an RXB doesn't have a Rx queue slot associated with it,
1376 * then a bug has been introduced in the queue refilling
1377 * routines -- catch it here */
1378 BUG_ON(rxb == NULL);
1380 rxq->queue[i] = NULL;
1382 pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
1383 priv->hw_params.rx_buf_size,
1384 PCI_DMA_FROMDEVICE);
1385 pkt = (struct iwl_rx_packet *)rxb->skb->data;
1387 /* Reclaim a command buffer only if this packet is a response
1388 * to a (driver-originated) command.
1389 * If the packet (e.g. Rx frame) originated from uCode,
1390 * there is no command buffer to reclaim.
1391 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1392 * but apparently a few don't get set; catch them here. */
1393 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
1394 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
1395 (pkt->hdr.cmd != REPLY_TX);
1397 /* Based on type of command response or notification,
1398 * handle those that need handling via function in
1399 * rx_handlers table. See iwl3945_setup_rx_handlers() */
1400 if (priv->rx_handlers[pkt->hdr.cmd]) {
1401 IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
1402 "r = %d, i = %d, %s, 0x%02x\n", r, i,
1403 get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
1404 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
1405 priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
1407 /* No handling needed */
1408 IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
1409 "r %d i %d No handler needed for %s, 0x%02x\n",
1410 r, i, get_cmd_string(pkt->hdr.cmd),
1415 /* Invoke any callbacks, transfer the skb to caller, and
1416 * fire off the (possibly) blocking iwl_send_cmd()
1417 * as we reclaim the driver command queue */
1418 if (rxb && rxb->skb)
1419 iwl_tx_cmd_complete(priv, rxb);
1421 IWL_WARN(priv, "Claim null rxb?\n");
1424 /* For now we just don't re-use anything. We can tweak this
1425 * later to try and re-use notification packets and SKBs that
1426 * fail to Rx correctly */
1427 if (rxb->skb != NULL) {
1428 priv->alloc_rxb_skb--;
1429 dev_kfree_skb_any(rxb->skb);
1433 spin_lock_irqsave(&rxq->lock, flags);
1434 list_add_tail(&rxb->list, &priv->rxq.rx_used);
1435 spin_unlock_irqrestore(&rxq->lock, flags);
1436 i = (i + 1) & RX_QUEUE_MASK;
1437 /* If there are a lot of unused frames,
1438 * restock the Rx queue so ucode won't assert. */
1443 iwl3945_rx_replenish_now(priv);
1449 /* Backtrack one entry */
1452 iwl3945_rx_replenish_now(priv);
1454 iwl3945_rx_queue_restock(priv);
1457 /* call this function to flush any scheduled tasklet */
1458 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
1460 /* wait to make sure we flush pending tasklet*/
1461 synchronize_irq(priv->pci_dev->irq);
1462 tasklet_kill(&priv->irq_tasklet);
1465 static const char *desc_lookup(int i)
1473 return "BAD_CHECKSUM";
1475 return "NMI_INTERRUPT";
1479 return "FATAL_ERROR";
1485 #define ERROR_START_OFFSET (1 * sizeof(u32))
1486 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1488 static void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
1491 u32 desc, time, count, base, data1;
1492 u32 blink1, blink2, ilink1, ilink2;
1494 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
1496 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
1497 IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
1502 count = iwl_read_targ_mem(priv, base);
1504 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
1505 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
1506 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
1507 priv->status, count);
1510 IWL_ERR(priv, "Desc Time asrtPC blink2 "
1511 "ilink1 nmiPC Line\n");
1512 for (i = ERROR_START_OFFSET;
1513 i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
1514 i += ERROR_ELEM_SIZE) {
1515 desc = iwl_read_targ_mem(priv, base + i);
1517 iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32));
1519 iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32));
1521 iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32));
1523 iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32));
1525 iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32));
1527 iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32));
1530 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
1531 desc_lookup(desc), desc, time, blink1, blink2,
1532 ilink1, ilink2, data1);
1537 #define EVENT_START_OFFSET (6 * sizeof(u32))
1540 * iwl3945_print_event_log - Dump error event log to syslog
1543 static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
1544 u32 num_events, u32 mode)
1547 u32 base; /* SRAM byte address of event log header */
1548 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
1549 u32 ptr; /* SRAM byte address of log data */
1550 u32 ev, time, data; /* event log data */
1552 if (num_events == 0)
1555 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
1558 event_size = 2 * sizeof(u32);
1560 event_size = 3 * sizeof(u32);
1562 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
1564 /* "time" is actually "data" for mode 0 (no timestamp).
1565 * place event id # at far right for easier visual parsing. */
1566 for (i = 0; i < num_events; i++) {
1567 ev = iwl_read_targ_mem(priv, ptr);
1569 time = iwl_read_targ_mem(priv, ptr);
1573 IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
1575 data = iwl_read_targ_mem(priv, ptr);
1577 IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
1582 static void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
1584 u32 base; /* SRAM byte address of event log header */
1585 u32 capacity; /* event log capacity in # entries */
1586 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
1587 u32 num_wraps; /* # times uCode wrapped to top of log */
1588 u32 next_entry; /* index of next entry to be written by uCode */
1589 u32 size; /* # entries that we'll print */
1591 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
1592 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
1593 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
1597 /* event log header */
1598 capacity = iwl_read_targ_mem(priv, base);
1599 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
1600 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
1601 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
1603 size = num_wraps ? capacity : next_entry;
1605 /* bail out if nothing in log */
1607 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
1611 IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
1614 /* if uCode has wrapped back to top of log, start at the oldest entry,
1615 * i.e the next one that uCode would fill. */
1617 iwl3945_print_event_log(priv, next_entry,
1618 capacity - next_entry, mode);
1620 /* (then/else) start at top of log */
1621 iwl3945_print_event_log(priv, 0, next_entry, mode);
1625 static void iwl3945_irq_tasklet(struct iwl_priv *priv)
1627 u32 inta, handled = 0;
1629 unsigned long flags;
1630 #ifdef CONFIG_IWLWIFI_DEBUG
1634 spin_lock_irqsave(&priv->lock, flags);
1636 /* Ack/clear/reset pending uCode interrupts.
1637 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1638 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1639 inta = iwl_read32(priv, CSR_INT);
1640 iwl_write32(priv, CSR_INT, inta);
1642 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1643 * Any new interrupts that happen after this, either while we're
1644 * in this tasklet, or later, will show up in next ISR/tasklet. */
1645 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1646 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
1648 #ifdef CONFIG_IWLWIFI_DEBUG
1649 if (iwl_debug_level & IWL_DL_ISR) {
1650 /* just for debug */
1651 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1652 IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1653 inta, inta_mask, inta_fh);
1657 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1658 * atomic, make sure that inta covers all the interrupts that
1659 * we've discovered, even if FH interrupt came in just after
1660 * reading CSR_INT. */
1661 if (inta_fh & CSR39_FH_INT_RX_MASK)
1662 inta |= CSR_INT_BIT_FH_RX;
1663 if (inta_fh & CSR39_FH_INT_TX_MASK)
1664 inta |= CSR_INT_BIT_FH_TX;
1666 /* Now service all interrupt bits discovered above. */
1667 if (inta & CSR_INT_BIT_HW_ERR) {
1668 IWL_ERR(priv, "Hardware error detected. Restarting.\n");
1670 /* Tell the device to stop sending interrupts */
1671 iwl_disable_interrupts(priv);
1673 priv->isr_stats.hw++;
1674 iwl_irq_handle_error(priv);
1676 handled |= CSR_INT_BIT_HW_ERR;
1678 spin_unlock_irqrestore(&priv->lock, flags);
1683 #ifdef CONFIG_IWLWIFI_DEBUG
1684 if (iwl_debug_level & (IWL_DL_ISR)) {
1685 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1686 if (inta & CSR_INT_BIT_SCD) {
1687 IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
1688 "the frame/frames.\n");
1689 priv->isr_stats.sch++;
1692 /* Alive notification via Rx interrupt will do the real work */
1693 if (inta & CSR_INT_BIT_ALIVE) {
1694 IWL_DEBUG_ISR(priv, "Alive interrupt\n");
1695 priv->isr_stats.alive++;
1699 /* Safely ignore these bits for debug checks below */
1700 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1702 /* Error detected by uCode */
1703 if (inta & CSR_INT_BIT_SW_ERR) {
1704 IWL_ERR(priv, "Microcode SW error detected. "
1705 "Restarting 0x%X.\n", inta);
1706 priv->isr_stats.sw++;
1707 priv->isr_stats.sw_err = inta;
1708 iwl_irq_handle_error(priv);
1709 handled |= CSR_INT_BIT_SW_ERR;
1712 /* uCode wakes up after power-down sleep */
1713 if (inta & CSR_INT_BIT_WAKEUP) {
1714 IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
1715 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
1716 iwl_txq_update_write_ptr(priv, &priv->txq[0]);
1717 iwl_txq_update_write_ptr(priv, &priv->txq[1]);
1718 iwl_txq_update_write_ptr(priv, &priv->txq[2]);
1719 iwl_txq_update_write_ptr(priv, &priv->txq[3]);
1720 iwl_txq_update_write_ptr(priv, &priv->txq[4]);
1721 iwl_txq_update_write_ptr(priv, &priv->txq[5]);
1723 priv->isr_stats.wakeup++;
1724 handled |= CSR_INT_BIT_WAKEUP;
1727 /* All uCode command responses, including Tx command responses,
1728 * Rx "responses" (frame-received notification), and other
1729 * notifications from uCode come through here*/
1730 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1731 iwl3945_rx_handle(priv);
1732 priv->isr_stats.rx++;
1733 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1736 if (inta & CSR_INT_BIT_FH_TX) {
1737 IWL_DEBUG_ISR(priv, "Tx interrupt\n");
1738 priv->isr_stats.tx++;
1740 iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
1741 iwl_write_direct32(priv, FH39_TCSR_CREDIT
1742 (FH39_SRVC_CHNL), 0x0);
1743 handled |= CSR_INT_BIT_FH_TX;
1746 if (inta & ~handled) {
1747 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
1748 priv->isr_stats.unhandled++;
1751 if (inta & ~priv->inta_mask) {
1752 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
1753 inta & ~priv->inta_mask);
1754 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
1757 /* Re-enable all interrupts */
1758 /* only Re-enable if disabled by irq */
1759 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1760 iwl_enable_interrupts(priv);
1762 #ifdef CONFIG_IWLWIFI_DEBUG
1763 if (iwl_debug_level & (IWL_DL_ISR)) {
1764 inta = iwl_read32(priv, CSR_INT);
1765 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1766 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1767 IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1768 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
1771 spin_unlock_irqrestore(&priv->lock, flags);
1774 static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
1775 enum ieee80211_band band,
1776 u8 is_active, u8 n_probes,
1777 struct iwl3945_scan_channel *scan_ch)
1779 struct ieee80211_channel *chan;
1780 const struct ieee80211_supported_band *sband;
1781 const struct iwl_channel_info *ch_info;
1782 u16 passive_dwell = 0;
1783 u16 active_dwell = 0;
1786 sband = iwl_get_hw_mode(priv, band);
1790 active_dwell = iwl_get_active_dwell_time(priv, band, n_probes);
1791 passive_dwell = iwl_get_passive_dwell_time(priv, band);
1793 if (passive_dwell <= active_dwell)
1794 passive_dwell = active_dwell + 1;
1796 for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) {
1797 chan = priv->scan_request->channels[i];
1799 if (chan->band != band)
1802 scan_ch->channel = chan->hw_value;
1804 ch_info = iwl_get_channel_info(priv, band, scan_ch->channel);
1805 if (!is_channel_valid(ch_info)) {
1806 IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n",
1811 scan_ch->active_dwell = cpu_to_le16(active_dwell);
1812 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
1813 /* If passive , set up for auto-switch
1814 * and use long active_dwell time.
1816 if (!is_active || is_channel_passive(ch_info) ||
1817 (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
1818 scan_ch->type = 0; /* passive */
1819 if (IWL_UCODE_API(priv->ucode_ver) == 1)
1820 scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
1822 scan_ch->type = 1; /* active */
1825 /* Set direct probe bits. These may be used both for active
1826 * scan channels (probes gets sent right away),
1827 * or for passive channels (probes get se sent only after
1828 * hearing clear Rx packet).*/
1829 if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
1831 scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
1833 /* uCode v1 does not allow setting direct probe bits on
1834 * passive channel. */
1835 if ((scan_ch->type & 1) && n_probes)
1836 scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
1839 /* Set txpower levels to defaults */
1840 scan_ch->tpc.dsp_atten = 110;
1841 /* scan_pwr_info->tpc.dsp_atten; */
1843 /*scan_pwr_info->tpc.tx_gain; */
1844 if (band == IEEE80211_BAND_5GHZ)
1845 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
1847 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
1848 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
1850 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
1854 IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n",
1856 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
1857 (scan_ch->type & 1) ?
1858 active_dwell : passive_dwell);
1864 IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added);
1868 static void iwl3945_init_hw_rates(struct iwl_priv *priv,
1869 struct ieee80211_rate *rates)
1873 for (i = 0; i < IWL_RATE_COUNT; i++) {
1874 rates[i].bitrate = iwl3945_rates[i].ieee * 5;
1875 rates[i].hw_value = i; /* Rate scaling will work on indexes */
1876 rates[i].hw_value_short = i;
1878 if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
1880 * If CCK != 1M then set short preamble rate flag.
1882 rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
1883 0 : IEEE80211_RATE_SHORT_PREAMBLE;
1888 /******************************************************************************
1890 * uCode download functions
1892 ******************************************************************************/
1894 static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
1896 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
1897 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
1898 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1899 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
1900 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1901 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
1905 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
1906 * looking at all data.
1908 static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
1915 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
1917 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
1918 IWL39_RTC_INST_LOWER_BOUND);
1921 for (; len > 0; len -= sizeof(u32), image++) {
1922 /* read data comes through single port, auto-incr addr */
1923 /* NOTE: Use the debugless read so we don't flood kernel log
1924 * if IWL_DL_IO is set */
1925 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
1926 if (val != le32_to_cpu(*image)) {
1927 IWL_ERR(priv, "uCode INST section is invalid at "
1928 "offset 0x%x, is 0x%x, s/b 0x%x\n",
1929 save_len - len, val, le32_to_cpu(*image));
1939 IWL_DEBUG_INFO(priv,
1940 "ucode image in INSTRUCTION memory is good\n");
1947 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
1948 * using sample data 100 bytes apart. If these sample points are good,
1949 * it's a pretty good bet that everything between them is good, too.
1951 static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
1958 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
1960 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
1961 /* read data comes through single port, auto-incr addr */
1962 /* NOTE: Use the debugless read so we don't flood kernel log
1963 * if IWL_DL_IO is set */
1964 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
1965 i + IWL39_RTC_INST_LOWER_BOUND);
1966 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
1967 if (val != le32_to_cpu(*image)) {
1968 #if 0 /* Enable this if you want to see details */
1969 IWL_ERR(priv, "uCode INST section is invalid at "
1970 "offset 0x%x, is 0x%x, s/b 0x%x\n",
1985 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
1986 * and verify its contents
1988 static int iwl3945_verify_ucode(struct iwl_priv *priv)
1995 image = (__le32 *)priv->ucode_boot.v_addr;
1996 len = priv->ucode_boot.len;
1997 rc = iwl3945_verify_inst_sparse(priv, image, len);
1999 IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
2003 /* Try initialize */
2004 image = (__le32 *)priv->ucode_init.v_addr;
2005 len = priv->ucode_init.len;
2006 rc = iwl3945_verify_inst_sparse(priv, image, len);
2008 IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
2012 /* Try runtime/protocol */
2013 image = (__le32 *)priv->ucode_code.v_addr;
2014 len = priv->ucode_code.len;
2015 rc = iwl3945_verify_inst_sparse(priv, image, len);
2017 IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
2021 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
2023 /* Since nothing seems to match, show first several data entries in
2024 * instruction SRAM, so maybe visual inspection will give a clue.
2025 * Selection of bootstrap image (vs. other images) is arbitrary. */
2026 image = (__le32 *)priv->ucode_boot.v_addr;
2027 len = priv->ucode_boot.len;
2028 rc = iwl3945_verify_inst_full(priv, image, len);
2033 static void iwl3945_nic_start(struct iwl_priv *priv)
2035 /* Remove all resets to allow NIC to operate */
2036 iwl_write32(priv, CSR_RESET, 0);
2040 * iwl3945_read_ucode - Read uCode images from disk file.
2042 * Copy into buffers for card to fetch via bus-mastering
2044 static int iwl3945_read_ucode(struct iwl_priv *priv)
2046 const struct iwl_ucode_header *ucode;
2047 int ret = -EINVAL, index;
2048 const struct firmware *ucode_raw;
2049 /* firmware file name contains uCode/driver compatibility version */
2050 const char *name_pre = priv->cfg->fw_name_pre;
2051 const unsigned int api_max = priv->cfg->ucode_api_max;
2052 const unsigned int api_min = priv->cfg->ucode_api_min;
2056 u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
2058 /* Ask kernel firmware_class module to get the boot firmware off disk.
2059 * request_firmware() is synchronous, file is in memory on return. */
2060 for (index = api_max; index >= api_min; index--) {
2061 sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
2062 ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
2064 IWL_ERR(priv, "%s firmware file req failed: %d\n",
2071 if (index < api_max)
2072 IWL_ERR(priv, "Loaded firmware %s, "
2073 "which is deprecated. "
2074 " Please use API v%u instead.\n",
2076 IWL_DEBUG_INFO(priv, "Got firmware '%s' file "
2077 "(%zd bytes) from disk\n",
2078 buf, ucode_raw->size);
2086 /* Make sure that we got at least our header! */
2087 if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) {
2088 IWL_ERR(priv, "File size way too small!\n");
2093 /* Data from ucode file: header followed by uCode images */
2094 ucode = (struct iwl_ucode_header *)ucode_raw->data;
2096 priv->ucode_ver = le32_to_cpu(ucode->ver);
2097 api_ver = IWL_UCODE_API(priv->ucode_ver);
2098 inst_size = priv->cfg->ops->ucode->get_inst_size(ucode, api_ver);
2099 data_size = priv->cfg->ops->ucode->get_data_size(ucode, api_ver);
2100 init_size = priv->cfg->ops->ucode->get_init_size(ucode, api_ver);
2102 priv->cfg->ops->ucode->get_init_data_size(ucode, api_ver);
2103 boot_size = priv->cfg->ops->ucode->get_boot_size(ucode, api_ver);
2104 src = priv->cfg->ops->ucode->get_data(ucode, api_ver);
2106 /* api_ver should match the api version forming part of the
2107 * firmware filename ... but we don't check for that and only rely
2108 * on the API version read from firmware header from here on forward */
2110 if (api_ver < api_min || api_ver > api_max) {
2111 IWL_ERR(priv, "Driver unable to support your firmware API. "
2112 "Driver supports v%u, firmware is v%u.\n",
2114 priv->ucode_ver = 0;
2118 if (api_ver != api_max)
2119 IWL_ERR(priv, "Firmware has old API version. Expected %u, "
2120 "got %u. New firmware can be obtained "
2121 "from http://www.intellinuxwireless.org.\n",
2124 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
2125 IWL_UCODE_MAJOR(priv->ucode_ver),
2126 IWL_UCODE_MINOR(priv->ucode_ver),
2127 IWL_UCODE_API(priv->ucode_ver),
2128 IWL_UCODE_SERIAL(priv->ucode_ver));
2130 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
2132 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n",
2134 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n",
2136 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n",
2138 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n",
2140 IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n",
2144 /* Verify size of file vs. image size info in file's header */
2145 if (ucode_raw->size != priv->cfg->ops->ucode->get_header_size(api_ver) +
2146 inst_size + data_size + init_size +
2147 init_data_size + boot_size) {
2149 IWL_DEBUG_INFO(priv,
2150 "uCode file size %zd does not match expected size\n",
2156 /* Verify that uCode images will fit in card's SRAM */
2157 if (inst_size > IWL39_MAX_INST_SIZE) {
2158 IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n",
2164 if (data_size > IWL39_MAX_DATA_SIZE) {
2165 IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n",
2170 if (init_size > IWL39_MAX_INST_SIZE) {
2171 IWL_DEBUG_INFO(priv,
2172 "uCode init instr len %d too large to fit in\n",
2177 if (init_data_size > IWL39_MAX_DATA_SIZE) {
2178 IWL_DEBUG_INFO(priv,
2179 "uCode init data len %d too large to fit in\n",
2184 if (boot_size > IWL39_MAX_BSM_SIZE) {
2185 IWL_DEBUG_INFO(priv,
2186 "uCode boot instr len %d too large to fit in\n",
2192 /* Allocate ucode buffers for card's bus-master loading ... */
2194 /* Runtime instructions and 2 copies of data:
2195 * 1) unmodified from disk
2196 * 2) backup cache for save/restore during power-downs */
2197 priv->ucode_code.len = inst_size;
2198 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
2200 priv->ucode_data.len = data_size;
2201 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
2203 priv->ucode_data_backup.len = data_size;
2204 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
2206 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
2207 !priv->ucode_data_backup.v_addr)
2210 /* Initialization instructions and data */
2211 if (init_size && init_data_size) {
2212 priv->ucode_init.len = init_size;
2213 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
2215 priv->ucode_init_data.len = init_data_size;
2216 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
2218 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
2222 /* Bootstrap (instructions only, no data) */
2224 priv->ucode_boot.len = boot_size;
2225 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
2227 if (!priv->ucode_boot.v_addr)
2231 /* Copy images into buffers for card's bus-master reads ... */
2233 /* Runtime instructions (first block of data in file) */
2235 IWL_DEBUG_INFO(priv,
2236 "Copying (but not loading) uCode instr len %zd\n", len);
2237 memcpy(priv->ucode_code.v_addr, src, len);
2240 IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
2241 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
2243 /* Runtime data (2nd block)
2244 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
2246 IWL_DEBUG_INFO(priv,
2247 "Copying (but not loading) uCode data len %zd\n", len);
2248 memcpy(priv->ucode_data.v_addr, src, len);
2249 memcpy(priv->ucode_data_backup.v_addr, src, len);
2252 /* Initialization instructions (3rd block) */
2255 IWL_DEBUG_INFO(priv,
2256 "Copying (but not loading) init instr len %zd\n", len);
2257 memcpy(priv->ucode_init.v_addr, src, len);
2261 /* Initialization data (4th block) */
2262 if (init_data_size) {
2263 len = init_data_size;
2264 IWL_DEBUG_INFO(priv,
2265 "Copying (but not loading) init data len %zd\n", len);
2266 memcpy(priv->ucode_init_data.v_addr, src, len);
2270 /* Bootstrap instructions (5th block) */
2272 IWL_DEBUG_INFO(priv,
2273 "Copying (but not loading) boot instr len %zd\n", len);
2274 memcpy(priv->ucode_boot.v_addr, src, len);
2276 /* We have our copies now, allow OS release its copies */
2277 release_firmware(ucode_raw);
2281 IWL_ERR(priv, "failed to allocate pci memory\n");
2283 iwl3945_dealloc_ucode_pci(priv);
2286 release_firmware(ucode_raw);
2294 * iwl3945_set_ucode_ptrs - Set uCode address location
2296 * Tell initialization uCode where to find runtime uCode.
2298 * BSM registers initially contain pointers to initialization uCode.
2299 * We need to replace them to load runtime uCode inst and data,
2300 * and to save runtime data when powering down.
2302 static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
2307 /* bits 31:0 for 3945 */
2308 pinst = priv->ucode_code.p_addr;
2309 pdata = priv->ucode_data_backup.p_addr;
2311 /* Tell bootstrap uCode where to find image to load */
2312 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
2313 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
2314 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
2315 priv->ucode_data.len);
2317 /* Inst byte count must be last to set up, bit 31 signals uCode
2318 * that all new ptr/size info is in place */
2319 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
2320 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
2322 IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n");
2328 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
2330 * Called after REPLY_ALIVE notification received from "initialize" uCode.
2332 * Tell "initialize" uCode to go ahead and load the runtime uCode.
2334 static void iwl3945_init_alive_start(struct iwl_priv *priv)
2336 /* Check alive response for "valid" sign from uCode */
2337 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
2338 /* We had an error bringing up the hardware, so take it
2339 * all the way back down so we can try again */
2340 IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n");
2344 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
2345 * This is a paranoid check, because we would not have gotten the
2346 * "initialize" alive if code weren't properly loaded. */
2347 if (iwl3945_verify_ucode(priv)) {
2348 /* Runtime instruction load was bad;
2349 * take it all the way back down so we can try again */
2350 IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
2354 /* Send pointers to protocol/runtime uCode image ... init code will
2355 * load and launch runtime uCode, which will send us another "Alive"
2357 IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
2358 if (iwl3945_set_ucode_ptrs(priv)) {
2359 /* Runtime instruction load won't happen;
2360 * take it all the way back down so we can try again */
2361 IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
2367 queue_work(priv->workqueue, &priv->restart);
2371 * iwl3945_alive_start - called after REPLY_ALIVE notification received
2372 * from protocol/runtime uCode (initialization uCode's
2373 * Alive gets handled by iwl3945_init_alive_start()).
2375 static void iwl3945_alive_start(struct iwl_priv *priv)
2377 int thermal_spin = 0;
2380 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
2382 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
2383 /* We had an error bringing up the hardware, so take it
2384 * all the way back down so we can try again */
2385 IWL_DEBUG_INFO(priv, "Alive failed.\n");
2389 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2390 * This is a paranoid check, because we would not have gotten the
2391 * "runtime" alive if code weren't properly loaded. */
2392 if (iwl3945_verify_ucode(priv)) {
2393 /* Runtime instruction load was bad;
2394 * take it all the way back down so we can try again */
2395 IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
2399 iwl_clear_stations_table(priv);
2401 rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
2402 IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill);
2405 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2406 /* if RFKILL is not on, then wait for thermal
2407 * sensor in adapter to kick in */
2408 while (iwl3945_hw_get_temperature(priv) == 0) {
2414 IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n",
2417 set_bit(STATUS_RF_KILL_HW, &priv->status);
2419 /* After the ALIVE response, we can send commands to 3945 uCode */
2420 set_bit(STATUS_ALIVE, &priv->status);
2422 if (iwl_is_rfkill(priv))
2425 ieee80211_wake_queues(priv->hw);
2427 priv->active_rate = priv->rates_mask;
2428 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
2430 iwl_power_update_mode(priv, false);
2432 if (iwl_is_associated(priv)) {
2433 struct iwl3945_rxon_cmd *active_rxon =
2434 (struct iwl3945_rxon_cmd *)(&priv->active_rxon);
2436 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2437 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2439 /* Initialize our rx_config data */
2440 iwl_connection_init_rx_config(priv, priv->iw_mode);
2443 /* Configure Bluetooth device coexistence support */
2444 iwl_send_bt_config(priv);
2446 /* Configure the adapter for unassociated operation */
2447 iwlcore_commit_rxon(priv);
2449 iwl3945_reg_txpower_periodic(priv);
2451 iwl3945_led_register(priv);
2453 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
2454 set_bit(STATUS_READY, &priv->status);
2455 wake_up_interruptible(&priv->wait_command_queue);
2457 /* reassociate for ADHOC mode */
2458 if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
2459 struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
2462 iwl_mac_beacon_update(priv->hw, beacon);
2465 if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
2466 iwl_set_mode(priv, priv->iw_mode);
2471 queue_work(priv->workqueue, &priv->restart);
2474 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
2476 static void __iwl3945_down(struct iwl_priv *priv)
2478 unsigned long flags;
2479 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
2480 struct ieee80211_conf *conf = NULL;
2482 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
2484 conf = ieee80211_get_hw_conf(priv->hw);
2487 set_bit(STATUS_EXIT_PENDING, &priv->status);
2489 iwl3945_led_unregister(priv);
2490 iwl_clear_stations_table(priv);
2492 /* Unblock any waiting calls */
2493 wake_up_interruptible_all(&priv->wait_command_queue);
2495 /* Wipe out the EXIT_PENDING status bit if we are not actually
2496 * exiting the module */
2498 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2500 /* stop and reset the on-board processor */
2501 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
2503 /* tell the device to stop sending interrupts */
2504 spin_lock_irqsave(&priv->lock, flags);
2505 iwl_disable_interrupts(priv);
2506 spin_unlock_irqrestore(&priv->lock, flags);
2507 iwl_synchronize_irq(priv);
2509 if (priv->mac80211_registered)
2510 ieee80211_stop_queues(priv->hw);
2512 /* If we have not previously called iwl3945_init() then
2513 * clear all bits but the RF Kill bits and return */
2514 if (!iwl_is_init(priv)) {
2515 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2517 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2518 STATUS_GEO_CONFIGURED |
2519 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2520 STATUS_EXIT_PENDING;
2524 /* ...otherwise clear out all the status bits but the RF Kill
2525 * bit and continue taking the NIC down. */
2526 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2528 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2529 STATUS_GEO_CONFIGURED |
2530 test_bit(STATUS_FW_ERROR, &priv->status) <<
2532 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2533 STATUS_EXIT_PENDING;
2535 priv->cfg->ops->lib->apm_ops.reset(priv);
2536 spin_lock_irqsave(&priv->lock, flags);
2537 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
2538 spin_unlock_irqrestore(&priv->lock, flags);
2540 iwl3945_hw_txq_ctx_stop(priv);
2541 iwl3945_hw_rxq_stop(priv);
2543 iwl_write_prph(priv, APMG_CLK_DIS_REG,
2544 APMG_CLK_VAL_DMA_CLK_RQT);
2549 priv->cfg->ops->lib->apm_ops.stop(priv);
2551 priv->cfg->ops->lib->apm_ops.reset(priv);
2554 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
2556 if (priv->ibss_beacon)
2557 dev_kfree_skb(priv->ibss_beacon);
2558 priv->ibss_beacon = NULL;
2560 /* clear out any free frames */
2561 iwl3945_clear_free_frames(priv);
2564 static void iwl3945_down(struct iwl_priv *priv)
2566 mutex_lock(&priv->mutex);
2567 __iwl3945_down(priv);
2568 mutex_unlock(&priv->mutex);
2570 iwl3945_cancel_deferred_work(priv);
2573 #define MAX_HW_RESTARTS 5
2575 static int __iwl3945_up(struct iwl_priv *priv)
2579 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2580 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
2584 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
2585 IWL_ERR(priv, "ucode not available for device bring up\n");
2589 /* If platform's RF_KILL switch is NOT set to KILL */
2590 if (iwl_read32(priv, CSR_GP_CNTRL) &
2591 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2592 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2594 set_bit(STATUS_RF_KILL_HW, &priv->status);
2595 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
2599 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2601 rc = iwl3945_hw_nic_init(priv);
2603 IWL_ERR(priv, "Unable to int nic\n");
2607 /* make sure rfkill handshake bits are cleared */
2608 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2609 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
2610 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2612 /* clear (again), then enable host interrupts */
2613 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2614 iwl_enable_interrupts(priv);
2616 /* really make sure rfkill handshake bits are cleared */
2617 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2618 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2620 /* Copy original ucode data image from disk into backup cache.
2621 * This will be used to initialize the on-board processor's
2622 * data SRAM for a clean start when the runtime program first loads. */
2623 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
2624 priv->ucode_data.len);
2626 /* We return success when we resume from suspend and rf_kill is on. */
2627 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
2630 for (i = 0; i < MAX_HW_RESTARTS; i++) {
2632 iwl_clear_stations_table(priv);
2634 /* load bootstrap state machine,
2635 * load bootstrap program into processor's memory,
2636 * prepare to load the "initialize" uCode */
2637 priv->cfg->ops->lib->load_ucode(priv);
2641 "Unable to set up bootstrap uCode: %d\n", rc);
2645 /* start card; "initialize" will load runtime ucode */
2646 iwl3945_nic_start(priv);
2648 IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
2653 set_bit(STATUS_EXIT_PENDING, &priv->status);
2654 __iwl3945_down(priv);
2655 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2657 /* tried to restart and config the device for as long as our
2658 * patience could withstand */
2659 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
2664 /*****************************************************************************
2666 * Workqueue callbacks
2668 *****************************************************************************/
2670 static void iwl3945_bg_init_alive_start(struct work_struct *data)
2672 struct iwl_priv *priv =
2673 container_of(data, struct iwl_priv, init_alive_start.work);
2675 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2678 mutex_lock(&priv->mutex);
2679 iwl3945_init_alive_start(priv);
2680 mutex_unlock(&priv->mutex);
2683 static void iwl3945_bg_alive_start(struct work_struct *data)
2685 struct iwl_priv *priv =
2686 container_of(data, struct iwl_priv, alive_start.work);
2688 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2691 mutex_lock(&priv->mutex);
2692 iwl3945_alive_start(priv);
2693 mutex_unlock(&priv->mutex);
2696 static void iwl3945_rfkill_poll(struct work_struct *data)
2698 struct iwl_priv *priv =
2699 container_of(data, struct iwl_priv, rfkill_poll.work);
2701 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2702 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2704 set_bit(STATUS_RF_KILL_HW, &priv->status);
2706 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
2707 test_bit(STATUS_RF_KILL_HW, &priv->status));
2709 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
2710 round_jiffies_relative(2 * HZ));
2714 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
2715 static void iwl3945_bg_request_scan(struct work_struct *data)
2717 struct iwl_priv *priv =
2718 container_of(data, struct iwl_priv, request_scan);
2719 struct iwl_host_cmd cmd = {
2720 .id = REPLY_SCAN_CMD,
2721 .len = sizeof(struct iwl3945_scan_cmd),
2722 .flags = CMD_SIZE_HUGE,
2725 struct iwl3945_scan_cmd *scan;
2726 struct ieee80211_conf *conf = NULL;
2728 enum ieee80211_band band;
2729 bool is_active = false;
2731 conf = ieee80211_get_hw_conf(priv->hw);
2733 mutex_lock(&priv->mutex);
2735 cancel_delayed_work(&priv->scan_check);
2737 if (!iwl_is_ready(priv)) {
2738 IWL_WARN(priv, "request scan called when driver not ready.\n");
2742 /* Make sure the scan wasn't canceled before this queued work
2743 * was given the chance to run... */
2744 if (!test_bit(STATUS_SCANNING, &priv->status))
2747 /* This should never be called or scheduled if there is currently
2748 * a scan active in the hardware. */
2749 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
2750 IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests "
2751 "Ignoring second request.\n");
2756 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2757 IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n");
2761 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
2763 "Scan request while abort pending. Queuing.\n");
2767 if (iwl_is_rfkill(priv)) {
2768 IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n");
2772 if (!test_bit(STATUS_READY, &priv->status)) {
2774 "Scan request while uninitialized. Queuing.\n");
2778 if (!priv->scan_bands) {
2779 IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n");
2784 priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) +
2785 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
2792 memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
2794 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
2795 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
2797 if (iwl_is_associated(priv)) {
2800 u32 suspend_time = 100;
2801 u32 scan_suspend_time = 100;
2802 unsigned long flags;
2804 IWL_DEBUG_INFO(priv, "Scanning while associated...\n");
2806 spin_lock_irqsave(&priv->lock, flags);
2807 interval = priv->beacon_int;
2808 spin_unlock_irqrestore(&priv->lock, flags);
2810 scan->suspend_time = 0;
2811 scan->max_out_time = cpu_to_le32(200 * 1024);
2813 interval = suspend_time;
2815 * suspend time format:
2816 * 0-19: beacon interval in usec (time before exec.)
2818 * 24-31: number of beacons (suspend between channels)
2821 extra = (suspend_time / interval) << 24;
2822 scan_suspend_time = 0xFF0FFFFF &
2823 (extra | ((suspend_time % interval) * 1024));
2825 scan->suspend_time = cpu_to_le32(scan_suspend_time);
2826 IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",
2827 scan_suspend_time, interval);
2830 if (priv->scan_request->n_ssids) {
2832 IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");
2833 for (i = 0; i < priv->scan_request->n_ssids; i++) {
2834 /* always does wildcard anyway */
2835 if (!priv->scan_request->ssids[i].ssid_len)
2837 scan->direct_scan[p].id = WLAN_EID_SSID;
2838 scan->direct_scan[p].len =
2839 priv->scan_request->ssids[i].ssid_len;
2840 memcpy(scan->direct_scan[p].ssid,
2841 priv->scan_request->ssids[i].ssid,
2842 priv->scan_request->ssids[i].ssid_len);
2848 IWL_DEBUG_SCAN(priv, "Kicking off passive scan.\n");
2850 /* We don't build a direct scan probe request; the uCode will do
2851 * that based on the direct_mask added to each channel entry */
2852 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
2853 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
2854 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2856 /* flags + rate selection */
2858 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
2859 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
2860 scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
2861 scan->good_CRC_th = 0;
2862 band = IEEE80211_BAND_2GHZ;
2863 } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
2864 scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
2866 * If active scaning is requested but a certain channel
2867 * is marked passive, we can do active scanning if we
2868 * detect transmissions.
2870 scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0;
2871 band = IEEE80211_BAND_5GHZ;
2873 IWL_WARN(priv, "Invalid scan band count\n");
2877 scan->tx_cmd.len = cpu_to_le16(
2878 iwl_fill_probe_req(priv,
2879 (struct ieee80211_mgmt *)scan->data,
2880 priv->scan_request->ie,
2881 priv->scan_request->ie_len,
2882 IWL_MAX_SCAN_SIZE - sizeof(*scan)));
2884 /* select Rx antennas */
2885 scan->flags |= iwl3945_get_antenna_flags(priv);
2887 if (iwl_is_monitor_mode(priv))
2888 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
2890 scan->channel_count =
2891 iwl3945_get_channels_for_scan(priv, band, is_active, n_probes,
2892 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
2894 if (scan->channel_count == 0) {
2895 IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);
2899 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
2900 scan->channel_count * sizeof(struct iwl3945_scan_channel);
2902 scan->len = cpu_to_le16(cmd.len);
2904 set_bit(STATUS_SCAN_HW, &priv->status);
2905 rc = iwl_send_cmd_sync(priv, &cmd);
2909 queue_delayed_work(priv->workqueue, &priv->scan_check,
2910 IWL_SCAN_CHECK_WATCHDOG);
2912 mutex_unlock(&priv->mutex);
2916 /* can not perform scan make sure we clear scanning
2917 * bits from status so next scan request can be performed.
2918 * if we dont clear scanning status bit here all next scan
2921 clear_bit(STATUS_SCAN_HW, &priv->status);
2922 clear_bit(STATUS_SCANNING, &priv->status);
2924 /* inform mac80211 scan aborted */
2925 queue_work(priv->workqueue, &priv->scan_completed);
2926 mutex_unlock(&priv->mutex);
2929 static void iwl3945_bg_up(struct work_struct *data)
2931 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
2933 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2936 mutex_lock(&priv->mutex);
2938 mutex_unlock(&priv->mutex);
2941 static void iwl3945_bg_restart(struct work_struct *data)
2943 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
2945 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2948 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
2949 mutex_lock(&priv->mutex);
2952 mutex_unlock(&priv->mutex);
2954 ieee80211_restart_hw(priv->hw);
2957 queue_work(priv->workqueue, &priv->up);
2961 static void iwl3945_bg_rx_replenish(struct work_struct *data)
2963 struct iwl_priv *priv =
2964 container_of(data, struct iwl_priv, rx_replenish);
2966 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2969 mutex_lock(&priv->mutex);
2970 iwl3945_rx_replenish(priv);
2971 mutex_unlock(&priv->mutex);
2974 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2976 void iwl3945_post_associate(struct iwl_priv *priv)
2979 struct ieee80211_conf *conf = NULL;
2981 if (priv->iw_mode == NL80211_IFTYPE_AP) {
2982 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
2987 IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
2988 priv->assoc_id, priv->active_rxon.bssid_addr);
2990 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2993 if (!priv->vif || !priv->is_open)
2996 iwl_scan_cancel_timeout(priv, 200);
2998 conf = ieee80211_get_hw_conf(priv->hw);
3000 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3001 iwlcore_commit_rxon(priv);
3003 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
3004 iwl_setup_rxon_timing(priv);
3005 rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
3006 sizeof(priv->rxon_timing), &priv->rxon_timing);
3008 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
3009 "Attempting to continue.\n");
3011 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
3013 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
3015 IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
3016 priv->assoc_id, priv->beacon_int);
3018 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
3019 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
3021 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
3023 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
3024 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
3025 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
3027 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
3029 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
3030 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
3034 iwlcore_commit_rxon(priv);
3036 switch (priv->iw_mode) {
3037 case NL80211_IFTYPE_STATION:
3038 iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
3041 case NL80211_IFTYPE_ADHOC:
3044 iwl_add_station(priv, priv->bssid, 0, CMD_SYNC, NULL);
3045 iwl3945_sync_sta(priv, IWL_STA_ID,
3046 (priv->band == IEEE80211_BAND_5GHZ) ?
3047 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
3049 iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
3050 iwl3945_send_beacon_cmd(priv);
3055 IWL_ERR(priv, "%s Should not be called in %d mode\n",
3056 __func__, priv->iw_mode);
3060 iwl_activate_qos(priv, 0);
3062 /* we have just associated, don't start scan too early */
3063 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
3066 /*****************************************************************************
3068 * mac80211 entry point functions
3070 *****************************************************************************/
3072 #define UCODE_READY_TIMEOUT (2 * HZ)
3074 static int iwl3945_mac_start(struct ieee80211_hw *hw)
3076 struct iwl_priv *priv = hw->priv;
3079 IWL_DEBUG_MAC80211(priv, "enter\n");
3081 /* we should be verifying the device is ready to be opened */
3082 mutex_lock(&priv->mutex);
3084 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
3085 * ucode filename and max sizes are card-specific. */
3087 if (!priv->ucode_code.len) {
3088 ret = iwl3945_read_ucode(priv);
3090 IWL_ERR(priv, "Could not read microcode: %d\n", ret);
3091 mutex_unlock(&priv->mutex);
3092 goto out_release_irq;
3096 ret = __iwl3945_up(priv);
3098 mutex_unlock(&priv->mutex);
3101 goto out_release_irq;
3103 IWL_DEBUG_INFO(priv, "Start UP work.\n");
3105 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
3106 * mac80211 will not be run successfully. */
3107 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
3108 test_bit(STATUS_READY, &priv->status),
3109 UCODE_READY_TIMEOUT);
3111 if (!test_bit(STATUS_READY, &priv->status)) {
3113 "Wait for START_ALIVE timeout after %dms.\n",
3114 jiffies_to_msecs(UCODE_READY_TIMEOUT));
3116 goto out_release_irq;
3120 /* ucode is running and will send rfkill notifications,
3121 * no need to poll the killswitch state anymore */
3122 cancel_delayed_work(&priv->rfkill_poll);
3125 IWL_DEBUG_MAC80211(priv, "leave\n");
3130 IWL_DEBUG_MAC80211(priv, "leave - failed\n");
3134 static void iwl3945_mac_stop(struct ieee80211_hw *hw)
3136 struct iwl_priv *priv = hw->priv;
3138 IWL_DEBUG_MAC80211(priv, "enter\n");
3140 if (!priv->is_open) {
3141 IWL_DEBUG_MAC80211(priv, "leave - skip\n");
3147 if (iwl_is_ready_rf(priv)) {
3148 /* stop mac, cancel any scan request and clear
3149 * RXON_FILTER_ASSOC_MSK BIT
3151 mutex_lock(&priv->mutex);
3152 iwl_scan_cancel_timeout(priv, 100);
3153 mutex_unlock(&priv->mutex);
3158 flush_workqueue(priv->workqueue);
3160 /* start polling the killswitch state again */
3161 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
3162 round_jiffies_relative(2 * HZ));
3164 IWL_DEBUG_MAC80211(priv, "leave\n");
3167 static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
3169 struct iwl_priv *priv = hw->priv;
3171 IWL_DEBUG_MAC80211(priv, "enter\n");
3173 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
3174 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
3176 if (iwl3945_tx_skb(priv, skb))
3177 dev_kfree_skb_any(skb);
3179 IWL_DEBUG_MAC80211(priv, "leave\n");
3180 return NETDEV_TX_OK;
3183 void iwl3945_config_ap(struct iwl_priv *priv)
3187 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3190 /* The following should be done only at AP bring up */
3191 if (!(iwl_is_associated(priv))) {
3193 /* RXON - unassoc (to set timing command) */
3194 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3195 iwlcore_commit_rxon(priv);
3198 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
3199 iwl_setup_rxon_timing(priv);
3200 rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
3201 sizeof(priv->rxon_timing),
3202 &priv->rxon_timing);
3204 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
3205 "Attempting to continue.\n");
3207 /* FIXME: what should be the assoc_id for AP? */
3208 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
3209 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
3210 priv->staging_rxon.flags |=
3211 RXON_FLG_SHORT_PREAMBLE_MSK;
3213 priv->staging_rxon.flags &=
3214 ~RXON_FLG_SHORT_PREAMBLE_MSK;
3216 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
3217 if (priv->assoc_capability &
3218 WLAN_CAPABILITY_SHORT_SLOT_TIME)
3219 priv->staging_rxon.flags |=
3220 RXON_FLG_SHORT_SLOT_MSK;
3222 priv->staging_rxon.flags &=
3223 ~RXON_FLG_SHORT_SLOT_MSK;
3225 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
3226 priv->staging_rxon.flags &=
3227 ~RXON_FLG_SHORT_SLOT_MSK;
3229 /* restore RXON assoc */
3230 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
3231 iwlcore_commit_rxon(priv);
3232 iwl_add_station(priv, iwl_bcast_addr, 0, CMD_SYNC, NULL);
3234 iwl3945_send_beacon_cmd(priv);
3236 /* FIXME - we need to add code here to detect a totally new
3237 * configuration, reset the AP, unassoc, rxon timing, assoc,
3238 * clear sta table, add BCAST sta... */
3241 static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3242 struct ieee80211_vif *vif,
3243 struct ieee80211_sta *sta,
3244 struct ieee80211_key_conf *key)
3246 struct iwl_priv *priv = hw->priv;
3249 u8 sta_id = IWL_INVALID_STATION;
3252 IWL_DEBUG_MAC80211(priv, "enter\n");
3254 if (iwl3945_mod_params.sw_crypto) {
3255 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
3259 addr = sta ? sta->addr : iwl_bcast_addr;
3260 static_key = !iwl_is_associated(priv);
3263 sta_id = iwl_find_station(priv, addr);
3264 if (sta_id == IWL_INVALID_STATION) {
3265 IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n",
3271 mutex_lock(&priv->mutex);
3272 iwl_scan_cancel_timeout(priv, 100);
3273 mutex_unlock(&priv->mutex);
3278 ret = iwl3945_set_static_key(priv, key);
3280 ret = iwl3945_set_dynamic_key(priv, key, sta_id);
3281 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
3285 ret = iwl3945_remove_static_key(priv);
3287 ret = iwl3945_clear_sta_key_info(priv, sta_id);
3288 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
3294 IWL_DEBUG_MAC80211(priv, "leave\n");
3299 /*****************************************************************************
3303 *****************************************************************************/
3305 #ifdef CONFIG_IWLWIFI_DEBUG
3308 * The following adds a new attribute to the sysfs representation
3309 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
3310 * used for controlling the debug level.
3312 * See the level definitions in iwl for details.
3314 * FIXME This file can be deprecated as the module parameter is
3315 * writable and users can thus also change the debug level
3316 * using the /sys/module/iwl3945/parameters/debug file.
3318 static ssize_t show_debug_level(struct device *d,
3319 struct device_attribute *attr, char *buf)
3321 return sprintf(buf, "0x%08X\n", iwl_debug_level);
3323 static ssize_t store_debug_level(struct device *d,
3324 struct device_attribute *attr,
3325 const char *buf, size_t count)
3327 struct iwl_priv *priv = dev_get_drvdata(d);
3331 ret = strict_strtoul(buf, 0, &val);
3333 IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
3335 iwl_debug_level = val;
3337 return strnlen(buf, count);
3340 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
3341 show_debug_level, store_debug_level);
3343 #endif /* CONFIG_IWLWIFI_DEBUG */
3345 static ssize_t show_temperature(struct device *d,
3346 struct device_attribute *attr, char *buf)
3348 struct iwl_priv *priv = dev_get_drvdata(d);
3350 if (!iwl_is_alive(priv))
3353 return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
3356 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
3358 static ssize_t show_tx_power(struct device *d,
3359 struct device_attribute *attr, char *buf)
3361 struct iwl_priv *priv = dev_get_drvdata(d);
3362 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
3365 static ssize_t store_tx_power(struct device *d,
3366 struct device_attribute *attr,
3367 const char *buf, size_t count)
3369 struct iwl_priv *priv = dev_get_drvdata(d);
3370 char *p = (char *)buf;
3373 val = simple_strtoul(p, &p, 10);
3375 IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
3377 iwl3945_hw_reg_set_txpower(priv, val);
3382 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
3384 static ssize_t show_flags(struct device *d,
3385 struct device_attribute *attr, char *buf)
3387 struct iwl_priv *priv = dev_get_drvdata(d);
3389 return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
3392 static ssize_t store_flags(struct device *d,
3393 struct device_attribute *attr,
3394 const char *buf, size_t count)
3396 struct iwl_priv *priv = dev_get_drvdata(d);
3397 u32 flags = simple_strtoul(buf, NULL, 0);
3399 mutex_lock(&priv->mutex);
3400 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
3401 /* Cancel any currently running scans... */
3402 if (iwl_scan_cancel_timeout(priv, 100))
3403 IWL_WARN(priv, "Could not cancel scan.\n");
3405 IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n",
3407 priv->staging_rxon.flags = cpu_to_le32(flags);
3408 iwlcore_commit_rxon(priv);
3411 mutex_unlock(&priv->mutex);
3416 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
3418 static ssize_t show_filter_flags(struct device *d,
3419 struct device_attribute *attr, char *buf)
3421 struct iwl_priv *priv = dev_get_drvdata(d);
3423 return sprintf(buf, "0x%04X\n",
3424 le32_to_cpu(priv->active_rxon.filter_flags));
3427 static ssize_t store_filter_flags(struct device *d,
3428 struct device_attribute *attr,
3429 const char *buf, size_t count)
3431 struct iwl_priv *priv = dev_get_drvdata(d);
3432 u32 filter_flags = simple_strtoul(buf, NULL, 0);
3434 mutex_lock(&priv->mutex);
3435 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
3436 /* Cancel any currently running scans... */
3437 if (iwl_scan_cancel_timeout(priv, 100))
3438 IWL_WARN(priv, "Could not cancel scan.\n");
3440 IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = "
3441 "0x%04X\n", filter_flags);
3442 priv->staging_rxon.filter_flags =
3443 cpu_to_le32(filter_flags);
3444 iwlcore_commit_rxon(priv);
3447 mutex_unlock(&priv->mutex);
3452 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
3453 store_filter_flags);
3455 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3457 static ssize_t show_measurement(struct device *d,
3458 struct device_attribute *attr, char *buf)
3460 struct iwl_priv *priv = dev_get_drvdata(d);
3461 struct iwl_spectrum_notification measure_report;
3462 u32 size = sizeof(measure_report), len = 0, ofs = 0;
3463 u8 *data = (u8 *)&measure_report;
3464 unsigned long flags;
3466 spin_lock_irqsave(&priv->lock, flags);
3467 if (!(priv->measurement_status & MEASUREMENT_READY)) {
3468 spin_unlock_irqrestore(&priv->lock, flags);
3471 memcpy(&measure_report, &priv->measure_report, size);
3472 priv->measurement_status = 0;
3473 spin_unlock_irqrestore(&priv->lock, flags);
3475 while (size && (PAGE_SIZE - len)) {
3476 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3477 PAGE_SIZE - len, 1);
3479 if (PAGE_SIZE - len)
3483 size -= min(size, 16U);
3489 static ssize_t store_measurement(struct device *d,
3490 struct device_attribute *attr,
3491 const char *buf, size_t count)
3493 struct iwl_priv *priv = dev_get_drvdata(d);
3494 struct ieee80211_measurement_params params = {
3495 .channel = le16_to_cpu(priv->active_rxon.channel),
3496 .start_time = cpu_to_le64(priv->last_tsf),
3497 .duration = cpu_to_le16(1),
3499 u8 type = IWL_MEASURE_BASIC;
3505 strncpy(buffer, buf, min(sizeof(buffer), count));
3506 channel = simple_strtoul(p, NULL, 0);
3508 params.channel = channel;
3511 while (*p && *p != ' ')
3514 type = simple_strtoul(p + 1, NULL, 0);
3517 IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on "
3518 "channel %d (for '%s')\n", type, params.channel, buf);
3519 iwl3945_get_measurement(priv, ¶ms, type);
3524 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
3525 show_measurement, store_measurement);
3526 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
3528 static ssize_t store_retry_rate(struct device *d,
3529 struct device_attribute *attr,
3530 const char *buf, size_t count)
3532 struct iwl_priv *priv = dev_get_drvdata(d);
3534 priv->retry_rate = simple_strtoul(buf, NULL, 0);
3535 if (priv->retry_rate <= 0)
3536 priv->retry_rate = 1;
3541 static ssize_t show_retry_rate(struct device *d,
3542 struct device_attribute *attr, char *buf)
3544 struct iwl_priv *priv = dev_get_drvdata(d);
3545 return sprintf(buf, "%d", priv->retry_rate);
3548 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
3552 static ssize_t store_power_level(struct device *d,
3553 struct device_attribute *attr,
3554 const char *buf, size_t count)
3556 struct iwl_priv *priv = dev_get_drvdata(d);
3561 mutex_lock(&priv->mutex);
3563 ret = strict_strtoul(buf, 10, &mode);
3567 ret = iwl_power_set_user_mode(priv, mode);
3569 IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
3575 mutex_unlock(&priv->mutex);
3579 static ssize_t show_power_level(struct device *d,
3580 struct device_attribute *attr, char *buf)
3582 struct iwl_priv *priv = dev_get_drvdata(d);
3583 int level = priv->power_data.power_mode;
3586 p += sprintf(p, "%d\n", level);
3590 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR,
3591 show_power_level, store_power_level);
3593 #define MAX_WX_STRING 80
3595 /* Values are in microsecond */
3596 static const s32 timeout_duration[] = {
3603 static const s32 period_duration[] = {
3611 static ssize_t show_channels(struct device *d,
3612 struct device_attribute *attr, char *buf)
3614 /* all this shit doesn't belong into sysfs anyway */
3618 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
3620 static ssize_t show_statistics(struct device *d,
3621 struct device_attribute *attr, char *buf)
3623 struct iwl_priv *priv = dev_get_drvdata(d);
3624 u32 size = sizeof(struct iwl3945_notif_statistics);
3625 u32 len = 0, ofs = 0;
3626 u8 *data = (u8 *)&priv->statistics_39;
3629 if (!iwl_is_alive(priv))
3632 mutex_lock(&priv->mutex);
3633 rc = iwl_send_statistics_request(priv, 0);
3634 mutex_unlock(&priv->mutex);
3638 "Error sending statistics request: 0x%08X\n", rc);
3642 while (size && (PAGE_SIZE - len)) {
3643 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3644 PAGE_SIZE - len, 1);
3646 if (PAGE_SIZE - len)
3650 size -= min(size, 16U);
3656 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
3658 static ssize_t show_antenna(struct device *d,
3659 struct device_attribute *attr, char *buf)
3661 struct iwl_priv *priv = dev_get_drvdata(d);
3663 if (!iwl_is_alive(priv))
3666 return sprintf(buf, "%d\n", iwl3945_mod_params.antenna);
3669 static ssize_t store_antenna(struct device *d,
3670 struct device_attribute *attr,
3671 const char *buf, size_t count)
3673 struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d);
3679 if (sscanf(buf, "%1i", &ant) != 1) {
3680 IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n");
3684 if ((ant >= 0) && (ant <= 2)) {
3685 IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant);
3686 iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant;
3688 IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant);
3694 static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
3696 static ssize_t show_status(struct device *d,
3697 struct device_attribute *attr, char *buf)
3699 struct iwl_priv *priv = dev_get_drvdata(d);
3700 if (!iwl_is_alive(priv))
3702 return sprintf(buf, "0x%08x\n", (int)priv->status);
3705 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
3707 static ssize_t dump_error_log(struct device *d,
3708 struct device_attribute *attr,
3709 const char *buf, size_t count)
3711 struct iwl_priv *priv = dev_get_drvdata(d);
3712 char *p = (char *)buf;
3715 iwl3945_dump_nic_error_log(priv);
3717 return strnlen(buf, count);
3720 static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
3722 static ssize_t dump_event_log(struct device *d,
3723 struct device_attribute *attr,
3724 const char *buf, size_t count)
3726 struct iwl_priv *priv = dev_get_drvdata(d);
3727 char *p = (char *)buf;
3730 iwl3945_dump_nic_event_log(priv);
3732 return strnlen(buf, count);
3735 static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
3737 /*****************************************************************************
3739 * driver setup and tear down
3741 *****************************************************************************/
3743 static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
3745 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
3747 init_waitqueue_head(&priv->wait_command_queue);
3749 INIT_WORK(&priv->up, iwl3945_bg_up);
3750 INIT_WORK(&priv->restart, iwl3945_bg_restart);
3751 INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
3752 INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
3753 INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
3754 INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
3755 INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll);
3756 INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
3757 INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan);
3758 INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);
3759 INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
3761 iwl3945_hw_setup_deferred_work(priv);
3763 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
3764 iwl3945_irq_tasklet, (unsigned long)priv);
3767 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
3769 iwl3945_hw_cancel_deferred_work(priv);
3771 cancel_delayed_work_sync(&priv->init_alive_start);
3772 cancel_delayed_work(&priv->scan_check);
3773 cancel_delayed_work(&priv->alive_start);
3774 cancel_work_sync(&priv->beacon_update);
3777 static struct attribute *iwl3945_sysfs_entries[] = {
3778 &dev_attr_antenna.attr,
3779 &dev_attr_channels.attr,
3780 &dev_attr_dump_errors.attr,
3781 &dev_attr_dump_events.attr,
3782 &dev_attr_flags.attr,
3783 &dev_attr_filter_flags.attr,
3784 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3785 &dev_attr_measurement.attr,
3787 &dev_attr_power_level.attr,
3788 &dev_attr_retry_rate.attr,
3789 &dev_attr_statistics.attr,
3790 &dev_attr_status.attr,
3791 &dev_attr_temperature.attr,
3792 &dev_attr_tx_power.attr,
3793 #ifdef CONFIG_IWLWIFI_DEBUG
3794 &dev_attr_debug_level.attr,
3799 static struct attribute_group iwl3945_attribute_group = {
3800 .name = NULL, /* put in device directory */
3801 .attrs = iwl3945_sysfs_entries,
3804 static struct ieee80211_ops iwl3945_hw_ops = {
3805 .tx = iwl3945_mac_tx,
3806 .start = iwl3945_mac_start,
3807 .stop = iwl3945_mac_stop,
3808 .add_interface = iwl_mac_add_interface,
3809 .remove_interface = iwl_mac_remove_interface,
3810 .config = iwl_mac_config,
3811 .configure_filter = iwl_configure_filter,
3812 .set_key = iwl3945_mac_set_key,
3813 .get_tx_stats = iwl_mac_get_tx_stats,
3814 .conf_tx = iwl_mac_conf_tx,
3815 .reset_tsf = iwl_mac_reset_tsf,
3816 .bss_info_changed = iwl_bss_info_changed,
3817 .hw_scan = iwl_mac_hw_scan
3820 static int iwl3945_init_drv(struct iwl_priv *priv)
3823 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
3825 priv->retry_rate = 1;
3826 priv->ibss_beacon = NULL;
3828 spin_lock_init(&priv->lock);
3829 spin_lock_init(&priv->sta_lock);
3830 spin_lock_init(&priv->hcmd_lock);
3832 INIT_LIST_HEAD(&priv->free_frames);
3834 mutex_init(&priv->mutex);
3836 /* Clear the driver's (not device's) station table */
3837 iwl_clear_stations_table(priv);
3839 priv->data_retry_limit = -1;
3840 priv->ieee_channels = NULL;
3841 priv->ieee_rates = NULL;
3842 priv->band = IEEE80211_BAND_2GHZ;
3844 priv->iw_mode = NL80211_IFTYPE_STATION;
3846 iwl_reset_qos(priv);
3848 priv->qos_data.qos_active = 0;
3849 priv->qos_data.qos_cap.val = 0;
3851 priv->rates_mask = IWL_RATES_MASK;
3852 /* If power management is turned on, default to CAM mode */
3853 priv->power_mode = IWL_POWER_MODE_CAM;
3854 priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
3856 if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
3857 IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
3862 ret = iwl_init_channel_map(priv);
3864 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3868 /* Set up txpower settings in driver for all channels */
3869 if (iwl3945_txpower_set_from_eeprom(priv)) {
3871 goto err_free_channel_map;
3874 ret = iwlcore_init_geos(priv);
3876 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3877 goto err_free_channel_map;
3879 iwl3945_init_hw_rates(priv, priv->ieee_rates);
3883 err_free_channel_map:
3884 iwl_free_channel_map(priv);
3889 static int iwl3945_setup_mac(struct iwl_priv *priv)
3892 struct ieee80211_hw *hw = priv->hw;
3894 hw->rate_control_algorithm = "iwl-3945-rs";
3895 hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
3897 /* Tell mac80211 our characteristics */
3898 hw->flags = IEEE80211_HW_SIGNAL_DBM |
3899 IEEE80211_HW_NOISE_DBM |
3900 IEEE80211_HW_SPECTRUM_MGMT;
3902 hw->wiphy->interface_modes =
3903 BIT(NL80211_IFTYPE_STATION) |
3904 BIT(NL80211_IFTYPE_ADHOC);
3906 hw->wiphy->custom_regulatory = true;
3908 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
3909 /* we create the 802.11 header and a zero-length SSID element */
3910 hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2;
3912 /* Default value; 4 EDCA QOS priorities */
3915 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
3916 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
3917 &priv->bands[IEEE80211_BAND_2GHZ];
3919 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
3920 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
3921 &priv->bands[IEEE80211_BAND_5GHZ];
3923 ret = ieee80211_register_hw(priv->hw);
3925 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
3928 priv->mac80211_registered = 1;
3933 static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3936 struct iwl_priv *priv;
3937 struct ieee80211_hw *hw;
3938 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
3939 struct iwl3945_eeprom *eeprom;
3940 unsigned long flags;
3942 /***********************
3943 * 1. Allocating HW data
3944 * ********************/
3946 /* mac80211 allocates memory for this device instance, including
3947 * space for this driver's private structure */
3948 hw = iwl_alloc_all(cfg, &iwl3945_hw_ops);
3950 printk(KERN_ERR DRV_NAME "Can not allocate network device\n");
3955 SET_IEEE80211_DEV(hw, &pdev->dev);
3958 * Disabling hardware scan means that mac80211 will perform scans
3959 * "the hard way", rather than using device's scan.
3961 if (iwl3945_mod_params.disable_hw_scan) {
3962 IWL_DEBUG_INFO(priv, "Disabling hw_scan\n");
3963 iwl3945_hw_ops.hw_scan = NULL;
3967 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
3969 priv->pci_dev = pdev;
3970 priv->inta_mask = CSR_INI_SET_MASK;
3972 #ifdef CONFIG_IWLWIFI_DEBUG
3973 atomic_set(&priv->restrict_refcnt, 0);
3976 /***************************
3977 * 2. Initializing PCI bus
3978 * *************************/
3979 if (pci_enable_device(pdev)) {
3981 goto out_ieee80211_free_hw;
3984 pci_set_master(pdev);
3986 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3988 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3990 IWL_WARN(priv, "No suitable DMA available.\n");
3991 goto out_pci_disable_device;
3994 pci_set_drvdata(pdev, priv);
3995 err = pci_request_regions(pdev, DRV_NAME);
3997 goto out_pci_disable_device;
3999 /***********************
4000 * 3. Read REV Register
4001 * ********************/
4002 priv->hw_base = pci_iomap(pdev, 0, 0);
4003 if (!priv->hw_base) {
4005 goto out_pci_release_regions;
4008 IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
4009 (unsigned long long) pci_resource_len(pdev, 0));
4010 IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
4012 /* We disable the RETRY_TIMEOUT register (0x41) to keep
4013 * PCI Tx retries from interfering with C3 CPU state */
4014 pci_write_config_byte(pdev, 0x41, 0x00);
4016 /* this spin lock will be used in apm_ops.init and EEPROM access
4017 * we should init now
4019 spin_lock_init(&priv->reg_lock);
4022 err = priv->cfg->ops->lib->apm_ops.init(priv);
4024 IWL_DEBUG_INFO(priv, "Failed to init the card\n");
4028 /***********************
4030 * ********************/
4032 /* Read the EEPROM */
4033 err = iwl_eeprom_init(priv);
4035 IWL_ERR(priv, "Unable to init EEPROM\n");
4038 /* MAC Address location in EEPROM same for 3945/4965 */
4039 eeprom = (struct iwl3945_eeprom *)priv->eeprom;
4040 memcpy(priv->mac_addr, eeprom->mac_address, ETH_ALEN);
4041 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr);
4042 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
4044 /***********************
4045 * 5. Setup HW Constants
4046 * ********************/
4047 /* Device-specific setup */
4048 if (iwl3945_hw_set_hw_params(priv)) {
4049 IWL_ERR(priv, "failed to set hw settings\n");
4050 goto out_eeprom_free;
4053 /***********************
4055 * ********************/
4057 err = iwl3945_init_drv(priv);
4059 IWL_ERR(priv, "initializing driver failed\n");
4060 goto out_unset_hw_params;
4063 IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
4066 /***********************
4068 * ********************/
4070 spin_lock_irqsave(&priv->lock, flags);
4071 iwl_disable_interrupts(priv);
4072 spin_unlock_irqrestore(&priv->lock, flags);
4074 pci_enable_msi(priv->pci_dev);
4076 err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr,
4077 IRQF_SHARED, DRV_NAME, priv);
4079 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
4080 goto out_disable_msi;
4083 err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
4085 IWL_ERR(priv, "failed to create sysfs device attributes\n");
4086 goto out_release_irq;
4089 iwl_set_rxon_channel(priv,
4090 &priv->bands[IEEE80211_BAND_2GHZ].channels[5]);
4091 iwl3945_setup_deferred_work(priv);
4092 iwl3945_setup_rx_handlers(priv);
4094 /*********************************
4095 * 8. Setup and Register mac80211
4096 * *******************************/
4098 iwl_enable_interrupts(priv);
4100 err = iwl3945_setup_mac(priv);
4102 goto out_remove_sysfs;
4104 err = iwl_dbgfs_register(priv, DRV_NAME);
4106 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
4108 /* Start monitoring the killswitch */
4109 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
4115 destroy_workqueue(priv->workqueue);
4116 priv->workqueue = NULL;
4117 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
4119 free_irq(priv->pci_dev->irq, priv);
4121 pci_disable_msi(priv->pci_dev);
4122 iwlcore_free_geos(priv);
4123 iwl_free_channel_map(priv);
4124 out_unset_hw_params:
4125 iwl3945_unset_hw_params(priv);
4127 iwl_eeprom_free(priv);
4129 pci_iounmap(pdev, priv->hw_base);
4130 out_pci_release_regions:
4131 pci_release_regions(pdev);
4132 out_pci_disable_device:
4133 pci_set_drvdata(pdev, NULL);
4134 pci_disable_device(pdev);
4135 out_ieee80211_free_hw:
4136 ieee80211_free_hw(priv->hw);
4141 static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
4143 struct iwl_priv *priv = pci_get_drvdata(pdev);
4144 unsigned long flags;
4149 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
4151 iwl_dbgfs_unregister(priv);
4153 set_bit(STATUS_EXIT_PENDING, &priv->status);
4155 if (priv->mac80211_registered) {
4156 ieee80211_unregister_hw(priv->hw);
4157 priv->mac80211_registered = 0;
4162 /* make sure we flush any pending irq or
4163 * tasklet for the driver
4165 spin_lock_irqsave(&priv->lock, flags);
4166 iwl_disable_interrupts(priv);
4167 spin_unlock_irqrestore(&priv->lock, flags);
4169 iwl_synchronize_irq(priv);
4171 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
4173 cancel_delayed_work_sync(&priv->rfkill_poll);
4175 iwl3945_dealloc_ucode_pci(priv);
4178 iwl3945_rx_queue_free(priv, &priv->rxq);
4179 iwl3945_hw_txq_ctx_free(priv);
4181 iwl3945_unset_hw_params(priv);
4182 iwl_clear_stations_table(priv);
4184 /*netif_stop_queue(dev); */
4185 flush_workqueue(priv->workqueue);
4187 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
4188 * priv->workqueue... so we can't take down the workqueue
4190 destroy_workqueue(priv->workqueue);
4191 priv->workqueue = NULL;
4193 free_irq(pdev->irq, priv);
4194 pci_disable_msi(pdev);
4196 pci_iounmap(pdev, priv->hw_base);
4197 pci_release_regions(pdev);
4198 pci_disable_device(pdev);
4199 pci_set_drvdata(pdev, NULL);
4201 iwl_free_channel_map(priv);
4202 iwlcore_free_geos(priv);
4204 if (priv->ibss_beacon)
4205 dev_kfree_skb(priv->ibss_beacon);
4207 ieee80211_free_hw(priv->hw);
4211 /*****************************************************************************
4213 * driver and module entry point
4215 *****************************************************************************/
4217 static struct pci_driver iwl3945_driver = {
4219 .id_table = iwl3945_hw_card_ids,
4220 .probe = iwl3945_pci_probe,
4221 .remove = __devexit_p(iwl3945_pci_remove),
4223 .suspend = iwl_pci_suspend,
4224 .resume = iwl_pci_resume,
4228 static int __init iwl3945_init(void)
4232 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
4233 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
4235 ret = iwl3945_rate_control_register();
4237 printk(KERN_ERR DRV_NAME
4238 "Unable to register rate control algorithm: %d\n", ret);
4242 ret = pci_register_driver(&iwl3945_driver);
4244 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
4245 goto error_register;
4251 iwl3945_rate_control_unregister();
4255 static void __exit iwl3945_exit(void)
4257 pci_unregister_driver(&iwl3945_driver);
4258 iwl3945_rate_control_unregister();
4261 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
4263 module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444);
4264 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
4265 module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
4266 MODULE_PARM_DESC(swcrypto,
4267 "using software crypto (default 1 [software])\n");
4268 #ifdef CONFIG_IWLWIFI_DEBUG
4269 module_param_named(debug, iwl_debug_level, uint, 0644);
4270 MODULE_PARM_DESC(debug, "debug output mask");
4272 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
4273 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
4274 module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, 0444);
4275 MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error");
4277 module_exit(iwl3945_exit);
4278 module_init(iwl3945_init);